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The UP College of Engineering (UP COE) Technical Bulletin serves as a medium for disseminating the results of research and development activities undertaken by faculty, students, research staff and alumni of the UP COE, through the publication of technical articles, notes and research briefs in all fields of engineering, and is being published by the UP National Engineering Center.

This edition features the abstracts of the papers of the Professorial Chair Awardees as well as the Teaching and Research Grant Awardees for the year 2020.

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Published by UP COE - NEC Technocal Bulletin, 2021-01-29 03:39:36

UP COE Technical Bulletin 2020: PCA and TRA Book of Abstracts

The UP College of Engineering (UP COE) Technical Bulletin serves as a medium for disseminating the results of research and development activities undertaken by faculty, students, research staff and alumni of the UP COE, through the publication of technical articles, notes and research briefs in all fields of engineering, and is being published by the UP National Engineering Center.

This edition features the abstracts of the papers of the Professorial Chair Awardees as well as the Teaching and Research Grant Awardees for the year 2020.

Keywords: engineering,UP NEC,University of the Philippines,UP COE

UNIVERSITY OF THE PHILIPPINES DILIMAN
COLLEGE OF ENGINEERING

2020 PROFESSORIAL CHAIR AND TEACHING & RESEARCH AWARD
BOOK OF ABSTRACTS

2020

GUIDELINES FOR THE UPERDFI PROFESSORIAL CHAIR AWARDS
College of Engineering, University of the Philippines Diliman

The UPERDFI Professorial Chair Award (PCA) is a form of recognition for achievements in the academe. The award aims
to encourage the faculty to advance knowledge and learning in the various fields of engineering. Any faculty member with
outstanding credentials in academic, teaching, research, service to the university/community, and professional growth
may be considered for the award.

Eligibility

1. An applicant for PCA must be a full-time faculty member with the rank of Assistant Professor or higher, and
should have served the University of the Philippines as a regular faculty member for at least one (1) year. \

2. An applicant for PCA must have a minimum of nine (9) units total load credit with at least three (3) units of
teaching load course credit. Faculty members who are on secondment /special detail or on leave (except
sabbatical leave) are not eligible.

3. There is no limit to the number of times a faculty member may receive the PCA, the sole basis of the award
being merit, provided that only one award is given at a time to any faculty member.

Selection

1. The Dean shall announce the call for PCA applications and the number of slots available for the award in
June.

2. Deadline for submission of applications for PCA will be on the 1st Monday of August. Documents for
consideration of the award: (1) an original research paper and (2) the PCA worksheet, must be submitted
to the Department Chair or Institute Director at the time of application. (For renewal of appointment, the PCA
holder need only to submit a copy of his/her original research paper.)

PCA awardees are required to disclose and show proof if the PCA paper has been submitted for publication
in a reputable local/international journal or for presentation in a conference or other fora. The PCA
publication obligation shall be considered fulfilled provided that the publication or oral presentation falls
within the period of evaluation.

Proof of Publication or Presentation are as follows:
a. For journal publication
i. Written letter of acknowledgement of submission, OR
ii. Written letter of acceptance or Photocopy of actual publication
b. Conference/Forum Presentation
i. Proof of the oral presentation (e.g., program, pictures, etc.), OR
ii. Conference/Forum Proceedings

3. Applications shall be evaluated first by the Department Chairs/Institute Directors and the respective
Department/Institute Academic Personnel Committee (DAPC/IAPC), and thereafter by the Dean and the
College Academic Personnel Committee (CAPC).

Evaluation of new applications and applications for PCA upgrade shall be based on the following criteria and
weights reckoned from August of the previous year to July of the current year:

• Teaching 40%
• Research/Creative Work 40%
• Service to University/Community 10%
• Professional Growth 10%

Renewal applications of those who have held 120K or 240K valued chairs for three consecutive years shall
be evaluated using the applicants’ past three years’ accomplishments.

4. The final list of awardees shall be determined by the Dean and CAPC based on the competitive scores of all
applicants for the whole COE.

5. The Dean shall submit the recommendations for the award to the Chancellor/HRDO within September, in
time for conferring the award in October/November.

GUIDELINES FOR THE UPERDFI TEACHING AND RESEARCH AWARD

1. Eligibility for the Teaching and Research Award (TRA) funded by the UP Engineering
Research and Development Foundation, Inc. (UPERDFI) from donations is for full-time
faculty members of the UP Diliman College of Engineering (UPCoE) with the rank of
Instructor to Assistant Professor who have served for at least one (1) year as regular
faculty members.

2. Applicants for the UPERDFI-TRA must have rendered at least 24 Academic Load Credit
(ALC) units per academic year. The ALC could be a combination of teaching,
administrative, research, and extension credits, with at least 3 units teaching load credit
per semester from the UPCoE.

3. Applicants for the UPERDFI-TRA must be nominated by the Department Academic
Personnel Committee (DAPC) or the Institute Academic Personnel Committee (IAPC)
where the faculty member belongs and eventually endorsed by the Department Chair or
Institute Director.

4. Based on the available slots, the awardees are selected by the College Academic
Personnel Committee (CAPC) and recommended by the Dean to the President of the
UPERDFI.

5. The UPERDFI-TRA is effective from 1 August until 31 July of the following year, unless
terminated earlier for noncompliance with these guidelines.

6. The awardee must render at least 24 Academic Load Credit (ALC) units per academic
year with at least 3 units teaching load credit from the UPCoE per semester of the
academic year.

7. The awardee is required to submit a research topic on his or her field of specialization
upon application, then write a paper on the topic. The paper should not have been
previously published nor submitted for publication.

8. Fifty percent (50%) of the TRA amount shall be given upon awarding and the remaining
fifty percent (50%) shall be given upon submission of the research paper.

9. The submitted paper will be reviewed by the Philippine Engineering Journal (PEJ) Editorial
Board, which has the first option to accept or not accept the paper for publication.
Accepted papers will qualify for the PEJ publication award given by the UPERDFI.

10. Awardee who have previously published at least a paper shall be given priority for renewal.
11. The awardees must not have been charged or have any pending administrative or criminal

case involving moral turpitude at the time of application and during the period of the
award.
12. The UPERDFI - TRA is renewable annually subject to availability of funds.



TABLE OF CONTENTS

PROFESSORIAL CHAIR AWARD PAPERS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 2

Gate Current Cancellation Using a Replica PMOS and Digital Feedback for Temperature-coefficient Reduction on an Ultra-
low Power Voltage Reference
Louis Alarcon, Ph.D.
Analog Devices, Inc. Professorial Chair

Performance Analysis of Hyperdimensional Computing for Character Recognition 3
Anastacia Alvarez, Ph.D.
MacArthur Delos Reyes Engineering Centennial Professorial Chair in EE

An SDR based WSN Testbed for RF Front End Simulation and Experimentation 4
John Richard Hizon, Ph.D.
GE Philippines Meter & Instrument Co. Professorial Chair

Design and Implementation of a Self-starting Thermal Energy Harvester with Resonant Startup and Maximum Power Point 5
Tracking Capabilities for Wireless Sensor Nodes
Maria Theresa De Leon, Ph.D.
Hilary De Leon Professorial Chair

Implementation of 6LoWPAN and Controller Area Network for a Smart Hydroponics System 6
Marc Rosales, Ph.D.
Manuel M. Lopez UP Centennial Professorial Chair

Hybrid LoRaWAN Localization using Ensemble Learning 7
Marc Caesar Talampas, Ph.D.
Mantaring-Gervasio Professorial Chair

Low-Latency LDPC Decoder using Non-Uniformly Quantized Channel Outputs 8
Adrian Vidal
PLDT-SMART Professorial Chair

Design and Implementation of a Low Cost Amateur Radio Unit for Cube Satellites 9
Charleston Dale Ambatali
Alexan Professorial Chair

Space Science and Technology Proliferation in the Philippines in the Philippines through Nationwide University Partnerships 10
Paul Jason Co
Nippon Telephone and Telegram Professorial Chair

Regularization by Mutual Information Maximization 11
Rowel Atienza, Ph.D.
Dado and Maria Banatao Institute Professorial Chair Award

Leak Detection in Water Distribution Networks via Pressure Analysis Using a Machine Learning Ensemble 12
Jhoanna Rhodette Pedrasa, Ph.D.
Globe Telecom Inc. Professorial Chair in ECE

Voice Conversion of Philippine Spoken Languages using Deep Neural Networks 13
Crisron Rudolf Lucas
Edison Coseteng Professorial Chair in Electrical Engineering

Speech Tracking Algorithms for an Automated Reading Tutor in Filipino 14
Rhandley Cajote, Ph.D.
Concepcion Hidalgo Sandoval Memorial Foundation Professorial Chair

Reducing Pulse Rate Variability Computational Error from a 30 Hz Photoplethysmography Recording 15
Franz De Leon, Ph.D.
Dona Maria Co Chiao Ti Lim EE Centennial Professorial Chair

LARSS: A Rider Scoring System to Mitigate Fraud in TNVS 16
Wilbert Jethro Limjoco
Dean Francisco L. Viray Professorial Chair

Design of an IoT-based Monitoring System using 6LoWPAN and Controller Area Network for an Indoor Smart Hydroponics 17
Farm 18
Isabel Montes-Austria, Ph.D.
Jose P. Segovia Professorial Chair

TCP Incast Solutions in Data Center Networks: A Classification and Survey
Nestor Michael Tiglao, Ph.D.
Edgar & Agnes Paynor EE Centennial Professorial Chair

Flipped Classroom Approach for Innovation and Other Engineering Classes for Remote Learning 19
Luis Sison, Ph.D.
V&L Aesquivel Professorial Chair in Engineering

Development of a 3D Printed Quadrupedal Robot with Distributed Joint Control 20
Nicolette Ann Arriola
Jose Ma. Diago De Castro Professorial Chair

Electromagnetic Artificial Muscle Technologies Revisited: Basis for the Design of Magnetic Coupled Artificial Exoskeletal 21
Muscle
Manuel Ramos, Jr., Ph.D.
M.G. Carlos Sr. EE Centennial Chair

Reconfigurable Fast Charger System for Lithium-Ion Batteries 22
Carl Michael Odulio, Ph.D.
Daniel Chan D. Reyes Professorial Chair in Engineering

Probabilistic Optimal Generation Dispatch Under Uncertainty in Wind Generation and Load 23
Allan Nerves, Ph.D.
Manuel V. Pangilinan Professorial Chair

Analytical Modelling of Power Swing and Validation Using Real Time Digital Simulator 24
Jordan Rel Orillaza, Ph.D.
Power Contractors Professorial Chair

Economic Evaluation of PV Generation Curtailment and Voltage Regulation Investment in Distribution Networks with High 25
PV Penetration
Michael Angelo Pedrasa, Ph.D.
Meralco Professorial Chair

Evaluation of a Modular Strator, Segmented Rotor Switched a Reluctance Motor 26
Lew Andrew Tria, Ph.D.
Vergara Power Systems Engineering Professorial Chair

A Study on the Effects of Satisfaction on Interruptible Load Scheduling 27
Christian Angelo Yap
Quezon Power Philippines Professorial Chair

INSTITUTE OF CIVIL ENGINEERING 32

Non-Recyclable Plastic Waste as Partial Bitumen Replacement in Hot-Mix Asphalt
Asst. Prof. Rosabelle Louise A. Caram
DCCD Engineering Corporation Professorial Chair

Risk Assessment of Low-Rise School Buildings with Wooden Roof Structures in the Philippines Against Wind Loadings 33
Asst. Prof. Timothy John S. Acosta
AMH Professorial Chair Award

SAP15x: Structural Analysis Package for Instruction and Research 34
Dr. Eric Augustus J. Tingatinga
DMCI Project Developers Professorial Chair 1

Development of Simulation-based Approach Using Frame Models Generated from GIS Features and BIM Data for 35
Application to City Seismic Response Analysis of Low- to Mid-rise RC Structures in Metro Manila

Dr. Pher Errol B. Quinay
Beatriz Basa-Altura Professorial Chair in Civil Engineering

Subdivision Development on Liquefiable Deposits: Analysis and Mitigation Measures 36
Dr. Alexis Philip A. Acacio
Beta Epsilon Professorial Chair

Stochastic Finite-Fault Modelling of Mw7.2 2013 Bohol Earthquake with Improvements via Low-Frequency Scaling Focusing 37
on Time-and Frequency-domain Characteristics.

Asst. Prof. Kristian Azul
Salvador F. Reyes Professorial Chair in Geotechnical Engineering

Assessment of Incorporating Plastic Wastes in Bricks and Concrete in the Philippines 38
Asst. Prof. Ma. Brida Lea D. Diola
Levy V. Espiritu Professorial Chair in Civil Engineering

Ubiquity of Microplastics in Surface Waters and Sediments in Five River Mouths of Manila Bay 39
Dr. Maria Antonia N. Tanchuling
Maynilad Professorial Chair (1)

Integrated Decision Support System for Water Resource Management: Applications and Lessons Learned from Laguna Lake 40
Experience

Dr. Eugene C. Herrera
Maynilad UP Centennial Professorial Chair

Nonstationary Extreme Value Analysis of Annual Rainfall Maxima Under Changing Climate for Cagayan de Oro River Basin 41
Dr. Guillermo Q. Tabios III
Angel Alejandrino Professorial Chair

Numerical Analysis of Storm Tides Along the Northern Coast of Cagayan, Philippines 42
Asst. Prof. Imee Bren O. Villalba
Federico E. Puno Professorial Chair A

Model Development for Evaluating Urban Flood Mitigation Strategies: the case of San Juan River, Quezon City Philippines 43
Dr. Roberto Soriano
Dr. Leonardo Q. Liongson Professorial Chair

Flood Mapping of Historical Flood and Hypothetical Dam Break Simulation for Magat Dam 44
Asst. Prof. Marjorie T. David
DMCI Project Developers Professorial Chair 2

Research Developments on Wind Engineering at the Institute of Civil Engineering in UP Diliman 45
Dr. Jaime Y. Hernandez, Jr.
Antonio G. Tan Giok Kun Professorial Chair in Civil Engineering

Preliminary Investigation of the Strength, Impermeability and Piezoresistivity of Graphene Nanoplatelet-Modified Concrete 46
Dr. Oscar Victor M. Antonio Jr.
Alfredo L. Juinio Professorial Chair

Building Back Better in Disaster-Stricken Areas in the Philippines 47
Dr. Diocel Harold M. Aquino
Engr. Ronaldo S. Ison Professorial Chair in Structural Engineering

Simulation Modeling of Engineering Interventions as Tool for Flood Control Planning in San Juan River 48
Asst. Prof. Richmark N. Macuha
Federico E. Puno Professorial Chair B

Hydraulic Analysis of Wave Penetration into a Marina Harbor with Vertical-Wall Breakwaters Due to a Historical Typhoon 49
Dr. Eric C. Cruz
Semirara Professorial Chair in Hydraulics

Calibrating Relative Velocity and Lateral Clearance Parameters of a Lane Changing Model for Traffic Microsimulation 50
Dr. Hilario Sean O. Palmiano
David M. Consunji Professorial Chair in Engineering

Transportation Systems for the New Normal: Towards a Better Normal 51
Dr. Jose Regin F. Regidor
Ambrosio Magsaysay Professorial Chair in Engineering

Multi-Method Landslide Susceptibility and Hazard Assessment 52
Asst. Prof. Jaime Angelo Victor
Ciriaco Professorial Chair in Engineering

Thermal Effects of Ground Source Cooling Bored Piles on Sand in the Philippines 53
Asst. Prof. Giancarlo P. Ventura
Longridge Construction, Inc. Professorial Chair

Recycled Plastic Composites Impregnated with Organoclay as Potential Geogrid Reinforcement Material for Pavement 54
Application

Asst. Prof. Lestelle V. Torio-Kaimo
DMCI Project Developers Professorial Chair 3

Life Cycle Analysis of Eco-Concrete: Quantifying Environmental Benefits of Partial Material Substitution 55
Asst. Prof. Justin Jesse L. Seranilla
Vicente & Juanita Hao Chin Professorial Chair

Development of Guidelines for the Management of Dredged Materials in the Esteros of Metro Manila 56
Asst. Prof. Noriza T. Sadie
Honorio and Elisa Allado Professorial Chair in Civil Engineering

Spatiotemporal Variation of Groundwater Arsenic in Pampanga, Philippines 57
Asst. Prof. Reygie Q. Macasieb
Quintin and Norma Calderon Professorial Chair

Application of Coupled HEC-HMS and US EPA WASP for Transport Modelling of Mercury in Mining Impacted Ambalanga 58
River

Dr. Augustus C. Resurreccion
Holcim Professorial Chair

Development of Storage Size Simulation Tool for Rainwater Harvesting System Based on the Yield-After-Spill Algorithm 59
Asst. Prof. Maxell P. Lumbera 60
Jorge M. Consunji Professorial Chair in Engineering 61
62
Temporary Structures: Excavation Protection During Construction
Fernando J. Germar
Felisberto Reyes Professorial Chair

A J2 Plasticity Model based on the Modified Ramberg-Osgood Power Law
Dr. Mark Albert H. Zarco
Prof. Alfredo B. Juinio Jr. Professorial Chair in Civil Engineering

Microcontrollers and Sensors for Traffic Data Collection Applications
Asst. Prof. Ricardo G. Sigua
Dr. Olegario G. Villoria Jr. Professorial Chair on Transportation/Logistics

DEPARTMENT OF CHEMICAL ENGINEERING 66

A Comparative Techno-Economic Analysis of Different Desalination Technologies in Off-Grid Islands
Asst. Prof. Myron T. Alcanzare
Don Felipe Say and Theresa Chua Say Professorial Chair

Hydrothermally Carbonized Waste Biomass as Electrocatalyst Support for ⍺-MnO2 in Oxygen Reduction Reaction 67
Dr. Julie Anne D. del Rosario
Lodevina B. Reyes Professorial Chair

Development of a CuO-Fe3O4 Based Electrochemical Sensor for Malathion 68
Asst. Prof. Marlon L. Mopon, Jr.
Cesar Buenaventura Professorial Chair

Transition Pathway Towards 100% Renewable Energy Across the Sectors of Power, Heat, Transport, and Desalination for the 69
Philippines

Dr. Joey Ocon
Federico Puno 1. Professorial Chair

Biodegradation and Sorption of 17⍺-Ethinylestradiol in a Submerged Membrane Bioreactor: Effect of Initial Ammonium 70
Concentration

Dr. Analiza P. Rollon
Oscar Lopez Professorial Chair

Solvent Absorption and Dissolution Kinetics Modelling for the Chemical Recycling of Waste Plastic Laminates 71
Dr. Terence P. Tumolva
Dr. Magdaleno B. Albarracin Jr. UP Centennial Professorial Chair in Engineering

Cartap Removal from Simulated Water Matrices by Fluidized-Bed Fenton Process: Optimization of Process Parameters 72
Dr. Mark Daniel G. De Luna
UP KEM Global – Dr. Luz Salonga

Design and Environmental Sustainability Assessment of Small-Scale Off-Grid Energy Systems for Remote Rural Communities 73
Dr. Jhud Mikhail Aberilla
Benjamin Chua Professorial Chair

Step-wise Intercalation for Organic Inorganic Hybrids 74
Dr. Bryan G. Alamani
Lagman Family Professorial Chair in Engineering

Nutrient Removal and Biomass Production by Immobilized Chlorella Vulgaris 75
Dr. Florencio C. Ballesteros, Jr.
Maynilad Professorial Chair (4)

Eco-friendly Synthesis of Recyclable Mesoporous Zinc Ferrite@Reduced Graphene Oxide Nanocomposite for Efficient 76
Photocatalytic Dye Degradation Under Solar Radiation 77
78
Dr. Marjorie L. Baynosa 79
Maynilad Professorial Chair (5) 80
81
Preliminary Optimization and Kinetics of SnCl2-HCl Catalyzed Hydrothermal Conversion of Microcrystalline Cellulose to 82
Levulinic Acid 83

Dr. Rizalinda L. De Leon 86
Apolonio and Lorna Yson Professorial Chair in Chemical Engineering 87
88
In Silico Identification of Bioactive Gibberellin Ligands for GID1, A Soluble Rice Receptor 89
Dr. Arthur A. Gonzales, III 90
Edgardo Pacheco Professorial Chair

LABSAFE: AI Information System Integrated Small Scale Safety Application
Dr. Miguel Francis M. Remolona
Elzar Lorenzana Simon DIEOR Golden Jubilee Professorial Chair in Artificial Intelligence

Fabrication and Field Testing of a Compact Bioreactor for Household Waste Composting in UP Diliman
Asst. Prof. Kristian July R. Yap
Maynilad Professorial Chair (2)

Reactor Simulation Studies of Base-Catalyzed Coconut Oil Transesterification with Methanol
Asst. Prof. Bemboy Niño F. Subosa
Chua Liong and Loreta Dy Professorial Chair

Online Fault Prognosis in Chemical Plants Using Regularized Recursive State-Space Degradation Models and Kalman
Filtering

Dr. Karl Ezra S. Pilario
Hydro Resources Contractors Professorial Chair

Humic Acid Functionalized-Silver Nanoparticles As Nanosensor for Calorimetric Detection of Copper (II) Ions in Aqueous
Solutions

Dr. Jem Valerie D. Perez
Robert Cheng/Uratex Professrial Chair

DEPARTMENT OF COMPUTER SCIENCE

Spiking Neural dP Systems: Balance and homogeneity
Asst. Prof Kelvin Buño
Atty. Raul C. Villanueva Professorial Chair

A Framework for Evolving Spiking Neural P Systems with Rules and Synapses
Assoc. Prof. Francis Cabarle
Dean Ruben A. Garcia Professorial Chair

Approaches in Evolutionary Multi-objective Reinforcement Learning
Asst. Prof. Carlo Raquel
David B. Sycip Professorial Chair

Approaches in Solving Combinatorial Hard Problems
Prof. Henry Adorna
Semirara Mining Corporation Professorial Chair in Computer Science

SDG Target Interactions: The Philippine Context
Assoc. Prof. Vena Pearl Boñgolan
Cesar Buenaventura UP Centennial Professorial Chair

Modeling the Philippine COVID-19 Clinical Workflow using HL7 FHIR 91
Asst. Prof. Phillip Zuniga
UPAE Professorial Chair

Evaluating the Viability of Ciphertext-policy Attribute-based Encryption on Service-Oriented Health Information Exchange 92
Systems

Asst. Prof. Edgar Felizmenio
Jesus Ferrer Professorial Chair

Quantifying the Side Effects of ‘Adtech’ on Popular Websites in the Philippines 93
Assoc. Prof. Rommel Feria
Dean Juan L. Tiongson Professorial Chair

Investigation of Distributed Ledger Technologies from the Context of Privacy Preservation 94
Prof. Susan Festin
Filemon Rodriguez Chair in Computer Science

Community Cellular Networks in the Philippines: Assessing Impact and Next Steps 95
Prof. Cedric Festin
Dado and Maria Banatao Institute Professorial Chair

An Attempt to Programmatically Merge Two Language Dictionaries in Project Marayum 96
­Asst. Prof. Mario Carreon
Marubeni Professorial Chair

Using Deep-Belief Networks to Understand Propensity for Livelihood Change in a Rural Coastal Community to Further 97
Conservation

Prof. Prospero C. Naval, Jr.
Dado and Maria Banatao Institute Professorial Chair

Adaptive Virtual Reality Disaster Simulation for Community Training 98
Prof. Jaime Caro
UP Alumni Engineers Centennial Professorial Chair

Feasibility of Focal Brain Cooling for Partial Epilepsy with Secondary Generalization: A Computational Study 99
Asst. Prof. Jaymar Soriano
Prof. Dominador Ilio Professorial Chair

Sequential Intermediate: Destination Approach to Route Choice Set Generation 100
Asst. Prof. John Justine Villar
Dean Reynaldo Vea Professorial Chair

Welfare Maximization Under a Three-choice Minority Game Model for Energy Demand Allocation 101
Assoc. Prof. Adrian Roy Valdez
Vidal A. Tan Professorial Chair

Opportunistic LoRa-based Gateways for Delay-tolerant Sensor Data Collection in Urban Settings 102
Assoc. Prof. Wilson Tan
San Roque Power Corporation Professorial Chair in Computer Science

Matrix Representation and Simulation Algorithm of Spiking Neural P Systems with Structural Plasticity 103
Asst. Prof. Nestine Hope Hernandez
Vea Technology for All Professorial Chair

DEPARTMENT OF GEODETIC ENGINEERING 106

Geographic Evaluation of Health Care Facility Referral System: The Case of Manila City
Ransie Joy A. Apura
Vicente and Juanita Hao Chin Professorial Chair

LANDS MODE 2: PROPERRTK 107
Louie P. Balicanta
Felipe F. Cruz Professorial Chair in Geodetic Engineering

Modelling of Land Surface Temperature Using Gray-Level Co-Occurrence Matrix and Random Forest Regression 108
Ariel C. Blanco
Reciñas-Simon Professorial Chair

Determining Corner Effect in Land Valuation 109
Florence A. Galeon
Cristy R. Hernandez Professorial Chair in Engineering

Building Knowledge Bases for Collaborative Land Use Planning 110
Oliver T. Macapinlac
RASA Surveying Professorial Chair

Application of GIS Network Analysis for Initial Assessment of the Evacuation Routes in Bonifacio Global City 111
Edgardo G. Macatulad
Robert Cheng – Uratex Professorial Chair

Spatial and Temporal Analysis of NO2 Levels in Metro Manila Using Sentinel 5P Satellite Data 112
Roseanne V. Ramos
Sy Ling Chat Professorial Chair in Engineering

Lake Water Level Variability Determination from SAR Backscatter of Discrete Objects, GNSS Leveling, and Satellite Altimetry 113
Rosalie B. Reyes
Policarpio and Nenita Alberto Professorial Chair in Geomatics

A Localized Demonstration of a Gravimetric-Geometric Geoid Model Towards the Development of a Time-Dependent 114
Vertical Working Surface

Czar Jakiri S. Sarmiento
Ariston I. Delos Reyes Centennial Professorial Chair in Engineering

DEPARTMENT OF INDUSTRIAL ENGINEERING AND OPERATIONS RESEARCH 118

Decision and Economic Risk Modeling for Implementing Regional Quarantine Policies Affecting the Labor Force Among
Interdependent Economic and Service Systems

Joanna Resurreccion
Marubeni UP Centennial Professorial Chair

A Systems Thinking Approach to Solving the EDSA Traffic Problem 119
Raymond Freth A. Lagria
Dr. Luis D. Pascual Professorial Chair in Systems Thinking and System Dynamics

An Operations Research Approach to Evaluating Tournament Structures Using Match Competitiveness 120
Simon Anthony D. Lorenzo
UPIEAA Professorial Chair

The UP Diliman Response to the COVID-19 Pandemic 121
Adeline A. Pacia
Juan Jr and Rosario Halili-Quintos Professorial Chair

Development of an Optimized Starch Portfolio Selection Model for Various Food Applications in High Volume Food 122
Production

Lowell Lorenzo
Stephen D. Sy Professorial Chair

An Ergonomic Analysis on the New E-Traysikel 123
Benette P. Custodio
Dr. Maria Aura Teodora Castillo Matias DIEOR Golden Jubilee Professorial Chair in Human Factors and Ergonomics

Linear and Conditional Logit Models of Demand Shifting for the Time-varying Capacity-Demand-Imbalance Problem 124
Iris Ann G. Martinez, Ph.D.
Fortunato T. dela Peña Professorial Chair in Productivity Engineering

A two-step approach involving forecasting preferences integrating curriculum, rank, educational attainment and interest, 125
and assignment to shorten teacher-course assignment process

Iris Ann G. Martinez, Ph.D.
Fortunato T. dela Peña Professorial Chair in Productivity Engineering

Integrated Employee Scheduling With Known Employee Demand, Including Breaks, Overtime, and Employee Preferences 125
Iris Ann G. Martinez, Ph.D.
Fortunato T. dela Peña Professorial Chair in Productivity Engineering

Integrated Employee Scheduling with Known Employee Demand, Including Breaks, Overtime, and Employee Preferences 126
Dr. Eugene Rex L. Jalao
Diliman Integrative Technical Consultancy Inc. Professorial Chair

Assessment of the ‘Customer Experience’ of the Undergraduate Students of UP-Diliman Industrial Engineering Program 127
Asst. Prof. Erickson L. Llaguno
Focus Global Inc. Professorial Chair in Engineering

DEPARTMENT OF MECHANICAL ENGINEERING 130

A Validation Study on the Performance of a Horizontal Axis Tidal Turbine (HATT)
Binoe E. Abuan
H.B. Reyes Mechanical Engineering Centennial Professorial Chair

Dropwise Condensation on Surface Modified Copper Sheets 131
Juvy A. Balbarona
Renato M. Tanseco Professorial Chair

Design and Analysis of Incorporating Two Ejectors for Compression Recovery in the Inlet and Outlet Points of the 132
Compressor in a Vapor Compression System

Menandro S. Berana
Lim Seh Leng ME Centennial Professorial Chair

The Structural Response of a Fiber-Reinforced Composite Horizontal Axis Tidal Turbine Blade Using Blade Element 133
Momentum-Derived Blade Loading

Jennifer F. Callanga
Cerlito San Juan and Family Professorial Chair

An Analysis of the Technical Feasibility of Offshore Wind Energy in the Philippines 134
Louis Angelo M. Danao
Vicente Paterno Centennial Professorial Chair

A Preliminary Comparison of Fuel Economy Estimates from Driving Cycles Developed Using Road Load Energy-based and 135
Microtip Methods

Gerald Jo. C. Denoga
Fernando N. Seriña Professorial Chair

Investigative Design of Coconut Charcoal Maker with Heat Utilization for Biomass Drying Part I: Design Prototype and Proof 136
of Concept

Roderaid T. Ibañez
TEAM Energy Professorial Chair in Energy Engineering

Analysis of MRT-3 Line Along EDSA using Developed Simulation 137
Koshneir S. Jimenez
Jesus P. Francisco (Energy/Railways) Professorial Chair

Buckling Analysis for Prosthetic Pylon Tube Using Finite Element Method 138
Hannah Erika D. Macaspac
Roger Murga Professorial Chair

Medical Waste Treatment and Electricity Generation Using Pyrolyzer-Rankine Cycle for Specialty Hospitals in Quezon City, 139
Philippines

Ferdinand G. Manegdeg
Alejandro Melchor Professorial Chair in Engineering

Investigative of Performance and Emission of a CRDI Passenger Van Fuelled with Coconut Methyl-Ester-Diesel Blends Using 140
Drive Cycle and Steady Speed Operation

Jose Gabriel E. Mercado
Apolonio P. and Lorna L. Yson Professorial Chair in Engineering

Fuel Economy and Emissions of Philippine CME-Diesel Blends from Drive Cycle and Steady Speed Operation 141
Edwin N. Quiros
Federico E. Puno 2 Professorial Chair

An Assessment Procedure for Evaluating Temperature Distribution in Air-Conditioned Offices for Determination of Baseline 142
Energy Efficiency Index

Joseph Gerard T. Reyes
Leopoldo V. Abis Professorial Chair

DEPARTMENT OF MINING, METALLURGICAL, AND MATERIALS ENGINEERING 146

Fabrication and Characterization of Cu-Zn-Sn Shape Memory Alloys via an Electrodeposition-annealing Route
Alberto V. Amorsolo Jr.
Philex Mining Corporation Professorial Chair I

High-Value Recycling of Silver from Waste Solar Panels Using Concentration and Leaching Methods 147
Asst. Prof. Karlo Leandro S. Baladad
Dr. Meliton U. Ordillas Jr. Professorial Chair in Metallurgical Engineering

Adsorption of Anionic Methyl Orange Dye and Lead (III) Heavy Metal Ion by Polyaniline-kapok Fiber 148
Mary Donnabelle L. Balela
Robert Cheng/Uratex Professorial Chair (2)

Removal of Cu (II) Ions from Synthetic Wastewater Solutions Using Ipil-Ipil (Leucaena leucocephala) Seeds 149
Jan Lowell P. Buquiz
Marithe Girbaud Professorial Chair

Highly Conducting Sc and Y co-doped ZrO2 Thin Film Solid Electrolyte on a Porous Ni/YSZ Electrode Prepared via Simple 150
Drop Coating Method

Rinlee Butch M. Cervera, Ph.D.
Cleantech Global Renewable Inc. Professorial Chair in Renewable Energy

Using a Modified Global Reporting Initiative Model for Evaluating the Sustainability of Mining Practices in Central Luzon, 151
Philippines

Eligia D. Clemente
Semirara Professorial Chair in Wall Mining

Project Daluyan: Water Quality, Hydrology, and Hydraulic Analyses of Boac River, Marinduque 152
John Kenneth A. Cruz
Crisostomo A. Ortigas Professorial Chair

Cold Atmospheric Pressure Plasma Jet Treatment of Polyvinyl Chloride for Improved Paint Adhesion 153
Mark Jeffry D. De Leon
Benguet Management Corporation Professorial Chair

Towards a Green and Sustainable Electropolishing Technology: Filipino Studies on the Application of Choline Chloride- 154
based Solvents for Electropolishing Aluminum

Eden May B. Dela Peña, Ph.D.
Antonio and Lourdes Tanchuling Mining Engineering Centennial Professorial Chair

Effect of Processing Parameters on the Diameter and Morphology of Electrospun Iron-Modified Montmorillonite (Fe-MMT)/ 155
Polycaprolactone Nanofibers

Leslie Joy L. Diaz, Dr. Eng.
Integrated Microelectronics Inc. (IMI) Professorial Chair

Grain Refinement of As-Cast Hadfield Steel for Jaw Crusher Plates through Pouring Temperature Control and Micro-Alloying 156
Stan Kristan G. Ejera
Domingo T. Toledo Professorial Chair

Fabrication of Cellulose Acetate-Based Radiation Grafted Anion Exchange Membranes for Fuel Cell Application 157
Richard D.V. Espiritu, Ph.D.
M.E. Sicat Professorial Chair

Material Selection and Design of External Fixator Clamp for Metacarpal Fractures 158
Eduardo R. Magdaluyo Jr.
Dean Oscar P. Baguio Professorial Chair

Effect of Banana-based Enzyme on the Cyanidation of Sulfidic Gold-bearing Ore 159
Joy Mirasol F. Maniaul
SR Metals Professorial Chair

Leaching Behavior of Iron, Nickel, Chromium, and Manganese in Goethitic Laterite with Sulfuric Acid 160
Terence Lucero F. Menor
Willy Lim Bon Teck Engineering Mining Centennial Professorial Chair

Array Pattern Effects on the Voltage Output of Vertically Aligned BaTiO3 Nanotubular Flexible Piezoelectric Nanogenerator 161
Candy C. Mercado
PHINMA Foundation Professorial Chair

Thermal Conductivity Enhancement in Polymer-Clay Nanocomposite Using Casting Techniques 162
Ivy Ann C. Razonado
Semirara Mining & Power Corporation Professorial Chair (2)

Enhancement of Photodegradation Efficiency of PVA/TiO2 nanofiber Composite via Plasma Treatment 163
Magdaleno R. Vasquez Jr., Dr. Eng.
Filminera Professorial Chair in Mining Engineering

TEACHING AND RESEARCH GRANT PAPERS 166
167
Unconfined Compressive Strength of Stabilized Clay Using Rice Hull Ash–Derived Geopolymer 168
Geotechnical Evaluation of Lime-Cement Stabilized Soil-Mine Tailings Mixture as Road Subgrade Material
Damage State Prediction of Low-rise and Mid-rise Reinforced Concrete Frame Structures Using Machine Learning 169

Algorithms 170
Numerical Investigation of Coastal Sediment Transport for Assessment of Coastal Erosion of a Philippine Coastline using a 171
172
3D Hydrodynamic Model 173
Computer-aided Design, Static, and Base Excitation Simulations of a Miniature Structure using Finite Element Analysis
Production of Bio-lubricant from Palm Oil Methyl Ester and Trimethylolpropane over Sodium Methoxide Catalyst 174
Exploration of Vehicle Plate Detection and Recognition for Access Control Systems 175
Development of a Student Database Using a Semi-Automated Workflow for Student Courses Demand and Grade 176
177
Monitoring 178
Understanding New Normal Signages 179
Short-Term Forecasting Model for Solar PV Power Output using LS-SVM
Study on Flood Risk Assessment and its Impacts to the Land Use/Cover of Marikina City Philippines 180
Investigation on the Effects of Temperature and IMFA on Surface Tension ofDifferent Liquids 181
Assessment of Gold Mine Tailings as Partial Sand Substitute in Nonloadbearing Concrete Hollow Blocks 182
Exposure Assessment of Particulate Matter 10 for Commuters in Selected Major Roads in Quezon City Using Satellite 183
184
Imagery and GIS Analysis 185
A Case Study on the New Normal Standards of OWWA Region3 186
Assessment of the Effects of Urbanization and Deforestation to the Hydrology of the Upper Agno River Basin 187
Production of Biodiesel via Transesterification of Waste Cooking Oil Using Calcium Oxide Catalyst 188
Influence of Environmental Ageing on the Degradation and Failure Mechanism of Rubber Composite 189
Grid Independence Analysis in Determining Pressure Coefficients due to Wind Loads on Gable Structures
Traffic Impact Assessment of the Proposed Lacson Flyover on its Adjacent Road Network
Productivity Analysis of Shotcrete Method in Divider Wall Construction Using Discrete Event Simulation in MS Excel
Production of Food Grade Carboxymethyl Cellulose From Corn Cob Agro-waste
The Ability (or Inability) of Automated Course Selection Tools in Meeting Student Criteria
Visibility Analysis of Huge Outdoor Advertisements from Structure-From-Motion Photogrammetry



2 PROFESSORIAL CHAIR AWARD

LOUIS ALARCON, PhD.
Analog Devices, Inc. Professorial Chair

Dr. Alarcon is currently Associate Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Microelectronics and Microprocessors Laboratory. He finished his PhD in Electrical Engineering and Computer
Science at the University of California in Berkeley in 2010. His research interests include the development of next
generation sensor networks covering key technologies including low energy and low voltage integrated circuit design,
integrated and discrete energy harvesting for resilient, large-scale, and zero-maintenance sensor nodes and networks,
and scalable and intelligent frameworks for distributed sensor and network processing.

GATE CURRENT CANCELLATION USING A REPLICA PMOS AND DIGITAL
FEEDBACK FOR TEMPERATURE-COEFFICIENT REDUCTION ON AN ULTRA-LOW

POWER VOLTAGE REFERENCE

A method to cancel the gate current loading at the output of ultra-low power voltage references using
a replica PMOS and digital feedback is proposed, reducing the achieved temperature coefficient
(TC). A time-based ultra-low power gate current-to-digital circuit, which takes advantage of an
inherently infinite CCO-based integrator gain to sense picoamperes of gate current, and an
intrinsically low- bandwidth sensed gate current, is implemented. In addition, the practical and the
fundamental limitation on the maximum achievable resolution of the gate current sensor is derived. A
TC of 100-200ppm/C across PVT is achieved while consuming only 1nW average power for a 100pA
gate current load.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 3

ANASTACIA ALVAREZ. PhD.
MacArthur delos Reyes Engineering
Centennial Professorial Chair in EE

Dr. Alvarez is currently Full Professor at the Electrical and Electronics Engineering Institute where she is affiliated with
the Microelectronics and Microprocessors Laboratory. She finished her PhD in Electrical and Electronics Engineering at
the National University of Singapore in 2017. Her research interest is in the field of digital integrated circuits, focusing
mainly on energy efficient techniques for energy-limited Internet of Things application.

PERFORMANCE ANALYSIS OF HYPERDIMENSIONAL COMPUTING FOR
CHARACTER RECOGNITION

The Internet of Things (IoT) is an increasingly expanding network of devices. The whole premise of
IoT is to provide comfort and convenience, requiring functions such as recognition. This is done
through data - first collected by nodes, and then processed to provide meaningful information,
commonly using machine learning. However, conventional machine learning techniques such as
deep learning require complicated operations, which may be computationally heavy for small
devices. This study explores the capabilities of hyperdimensional computing (HDC), as a less
complex architecture for data classification. The effect of dimensionality (and therefore energy) in the
performance of HDC, done through a character recognition application, was explored. Results show
that a dimensionality of 4,000-bit one- shot learning system yields an average accuracy close to that
of its 12,000-bit counterpart at 0% distortion, and an average accuracy of 89.94% with 14.29%
distortion. This study provides insights towards optimizations of HDC applications.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

4 PROFESSORIAL CHAIR AWARD

JOHN RICHARD HIZON, PhD.
GE Philippines Meter & Instrument Professorial
Chair

Dr. Hizon is currently Associate Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Microelectronics and Microprocessors Laboratory. He finished his PhD in Electrical Engineering at the Imperial
College London in 2011. His research interest is in developing circuit techniques for low-power reconfigurable analog
circuits, low energy wireless sensor nodes and energy harvesters from multiple sources.

AN SDR BASED WSN TESTBED FOR RF FRONT END SIMULATION AND
EXPERIMENTATION

This paper presents a wireless sensor network (WSN) testbed for radio frequency (RF) front-end
modules using software defined radio (SDR). This testbed would allow for the simulation of the
performance of experimental RF front end modules. Additionally, the testbed will be able to provide
target specifications for an RF front end using specific parameters in a specific environment. With the
flexibility of the SDR, the testbed should be able to simulate modules that would use new protocols or
implement legacy protocols no longer available. Results presented show the characterization of a
standard IEEE 802.15.4 communication system inside a closed room. An example of how this data
can be used to help in the design of RF front-end modules is then provided.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 5

MARIA THERESA DE LEON, PhD.
Hilary De Leon Professorial Chair

Dr. De Leon is currently Associate Professor at the Electrical and Electronics Engineering Institute where she is affiliated
with the Microelectronics and Microprocessors Laboratory. She finished her PhD in Electronics and Electrical
Engineering at the University of Southampton in 2014. Her research interest is in microelectromechanical systems,
energy harvesting, microfabrication, RF and analog integrated circuits, and on-wafer device characterization.

DESIGN AND IMPLEMENTATION OF A SELF-STARTING THERMAL ENERGY
HARVESTER WITH RESONANT STARTUP AND MAXIMUM POWER POINT
TRACKING CAPABILITIES FOR WIRELESS SENSOR NODES

Wireless sensor networks (WSNs) aim to address energy and environmental monitoring by focusing
on autonomous and efficient energy harvesting, usage and delivery. Power management for WSNs
mostly focuses on renewable energy harvesting methods that utilize minimal maintenance. As part of
this goal, this project explored a possible next step for WSN energy harvesting: a self-starting DC-DC
resonant converter that transfers energy from a thermoelectric energy harvester to the load. The
resonance feature of its self-starting circuit enabled it to start operating at lower voltages ranging
from 410-615 mV to produce a 1 V regulated output. It also features a maximum power point tracking
(MPPT) circuit to ensure maximum power transfer. Moreover, it was fully integrated using a 65 nm
CMOS process technology resulting in an area of 863 m by 706 m and 771.85 W power
consumption.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

6 PROFESSORIAL CHAIR AWARD

MARC ROSALES, PhD.
Manuel M. Lopez UP Centennial Professorial
Chair

Dr. Rosales is currently Associate Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Microelectronics and Microprocessors Laboratory. He finished his PhD in Electrical Engineering at the École
Supérieure d'Ingénieurs en Électrotechnique et Électronique, Paris in 2014. His research interest is in integrated circuits,
electronic prototyping, and radio frequency.

IMPLEMENTATION OF 6LOWPAN AND CONTROLLER AREA NETWORK FOR A
SMART HYDROPONICS SYSTEM

Hydroponics is the practice of growing plants and crops in soilless culture. It is becoming more
prevalent nowadays because of decreasing available land due to urbanization, and the various
advantages it has as compared to soil-based farming. To study and optimize the various factors that
affect plant growth in hydroponics set-ups (such as ambient temperature, light intensity, humidity,
etc.), a hybrid sensor network system, with both wireless (6LoWPAN) and wired (CAN Bus)
components, was proposed. The proposed system was then implemented using off- the-shelf
devices such as the CC2650 MCU, MSP432 launchpad, Digilent PMOD CAN, and the Raspberry Pi
2. The total number of 6LoWPAN nodes in the intended application setup was shown to be reduced
by 87.26% compared to fully wireless setup. The system was shown to be functional and the packet
drop rate when time interval between messages is 800ms drops to almost 0%. An initial design for
the visualization of the web application was also presented.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 7

MARC CAESAR TALAMPAS, PhD.
Mantaring-Gervasio Professorial Chair

Dr. Talampas is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with
the Instrumentation, Robotics and Control Laboratory. He finished his PhD in Electrical Engineering at the Nanyang
Technological University, Singapore in 2017. His research interest is in instrumentation, embedded systems,
environmental monitoring, and wireless sensor networks.

HYBRID LORAWAN LOCALIZATION USING ENSEMBLE LEARNING

Localization is an integral element in any Internet- of-Things (IoT) setup. Low Power Wide Area
Network (LPWAN) technology such as LoRaWAN enables long-range communication with low-power
consumption, and so, localization methods for outdoor applications have grown increasingly popular.
Various ranging and fingerprinting techniques have been studied so far; however, fusing signal
strength with time information remains to be an unexplored approach. In this study, an ensemble
learning-based outdoor positioning algorithm utilizing hybrid data is designed with the goal of
improving accuracy. An open access LoRaWAN dataset that offers both signal strength
measurements and nanosecond precise timestamps is used and is split to train, evaluate, and test
the algorithm that incorporates k Nearest Neighbors (kNN) method with the Random Forest
Regressor (RFR). The kNN-RFR algorithm configured with the best parameters achieved a mean
error of 332.63 meters and a median error of 193.63 meters.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

8 PROFESSORIAL CHAIR AWARD

ADRIAN VIDAL
PLDT-SMART Professorial Chair

Engr. Vidal is currently Assistant Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Wireless Communications Engineering Laboratory. He finished his Master of Science in Electrical Engineering at
the University of the Philippines. His research interest is in wireless communications.

LOW-LATENCY LDPC DECODER USING NON-UNIFORMLY QUANTIZED CHANNEL
OUTPUTS

In this paper, we present a low-precision low- density parity check (LDPC) decoder using quantized
messages. The quantization levels are set so that the resulting discrete memoryless channel is
weakly symmetric. Numerical evaluation of the capacity of quantized binary-input additive white
Gaussian noise channels show that their capacities quickly approach that of the original channel.
Using properties inherited from the continuous boxplus operation, we construct a family of binary
operations over the discrete set of messages. Simulations using DVB-S2 LDPC codes suggest that
the error performance of the proposed decoder comes within 0.5 dB of the LDPC decoder using 64-
bit double-precision arithmetic.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 9

CHARLESTON DALE AMBATALI
Alexan Professorial Chair

Engr. Ambatali is currently Assistant Professor at the Electrical and Electronics Engineering Institute where he is
affiliated with the Wireless Communications Engineering Laboratory. He finished his Master of Science in Electrical
Engineering at the University of the Philippines in 2017. His research interest is in simulating wireless communications
systems, RF and microwave engineering.

DESIGN AND IMPLEMENTATION OF A LOW COST AMATEUR RADIO UNIT FOR
CUBE SATELLITES

The Philippines is susceptible to natural calamities such as earthquakes, volcano eruptions, and
typhoons where communications play a vital role to a successful disaster risk reduction procedure.
Cellular phones, which most citizens rely on uses cellular towers that may go down during calamities,
rendering cellular communications unreliable for rescue operations. Having the characteristics of a
reliable and robust communication system, amateur radio is accessible to the general population and
has a lower cost of implementation. An example of an amateur radio infrastructure are amateur
satellites (AmSats). With the concept of lean satellites such as Cube Satellites (CubeSats),
production and launching of amateur satellites is practical as an infrastructure to support amateur
radio communication especially in a developing country like the Philippines. In this paper, we
propose a design of a low-cost amateur radio unit using low-cost modules such as a Raspberry Pi
that can fit in a Cube Satellite’s space constraints. With this design, it is possible to further reduce the
cost of producing amateur radio satellites that can be used as a back up for amateur radio
communication especially in terms of emergencies.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

10 PROFESSORIAL CHAIR AWARD

PAUL JASON CO
Nippon Telephone and Telegram Professorial
Chair

Engr. Co is currently Assistant Professor at the Electrical and Electronics Engineering Institute where he is affiliated with
the Wireless Communications Engineering Laboratory. He is finishing his PhD in Electrical and Electronics Engineering at
the Tokyo Institute of Technology. His research interest is in RF and Antennas and wireless communications.

SPACE SCIENCE AND TECHNOLOGY PROLIFERATION IN THE PHILIPPINES
THROUGH NATIONWIDE UNIVERSITY PARTNERSHIPS

This paper discusses the ongoing activities of the STEP-UP Project aimed at proliferating space
science and technology in the Philippines. The STEP-UP Project is a research project funded by the
Department of Science and Technology that undertakes the establishment of a university consortium
on space science and technology applications. The consortium will serve as an avenue for
nationwide and global collaboration for university-based space-related research activities. The
institutions invited as founding members of the consortium are strategically located across the three
major islands in the Philippines, serving as central hubs for cooperation and providing access to
knowledge and facilities within their respective regions. Among the activities of the STEP-UP Project
are the offering of a graduate track on nanosatellite engineering with hands-on development and
testing of a 1U CubeSat that will be launched to an ISS orbit, the development and setup of amateur
radio and satellite stations in partner universities, and the continuous enhancement and offering of
undergraduate courses and trainings on space engineering. In proliferating space science and
technology, the STEP-UP project expands the human resources critical in sustaining the country’s
space activities.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 11

ROWEL ATIENZA, PhD.
Dado and Maria Banatao Institute Professorial
Chair

Dr. Atienza is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with
the Ubiquitous Computing Laboratory. He finished his PhD in Robotics at the Australian National University in 2008. His
research interest is in the intersection of robotics, vision, graphics, language understanding, and virtual and augmented
reality.

REGULARIZATION BY MUTUAL INFORMATION MAXIMIZATION

For a given dataset and model architecture, data augmentation is a common technique that is used
to improve the generalization of image classifiers. Even with a virtually large amount of input data that
is generated on the fly during training, it appears that there is always a limit on what a model can
learn from a given dataset. We theorize and validate that there is still an untapped value in the data
that deep learning models can learn from. For example, consider an input data x. Augmentation
algorithms can transform x into an infinite number of variations x1, x2, ..., x∞ without altering its label
y. Other than the standard cross-entropy loss function, a model does not fully take advantage of the
fact that inputs of the same class must elicit the same invariant features to improve generalization. A
principled approach to learn invariant features is by realizing that they contain the same information
needed by the model to make the correct prediction. Therefore, by maximizing the mutual
information (MI) between features of in- puts of the same class, the model is encouraged to learn
invariance. The problem is estimating MI is an unsolved problem itself. In this paper, we show that
the MI of the last set of model features can be reliably estimated. We call our method MIMax.
Experimental results from various state-of-the-art deep learning models and data augmentation
algorithms demonstrate consistent improvements in performance when the MIMax regularizer is
used. In its degenerate form, even in the absence of a data augmentation algorithm a model benefits
from MIMax.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

12 PROFESSORIAL CHAIR AWARD

JHOANNA RHODETTE PEDRASA, PhD.
Globe Telecom Inc. Professorial Chair in ECE

Dr. Pedrasa is currently Associate Professor at the Electrical and Electronics Engineering Institute where she is affiliated
with the Computer Networks Laboratory. She finished her PhD in Electrical Engineering at the University of New South
Wales in 2011. Her research interest is in computer networks, design of experiments, and data analytics and modelling.

LEAK DETECTION IN WATER DISTRIBUTION NETWORKS VIA PRESSURE
ANALYSIS USING A MACHINE LEARNING ENSEMBLE

Water distribution networks (WDNs) are vital infrastruc- ture which serve as a means for public
utilities to deliver potable water to consumers. Naturally, pipelines degrade over time, causing
leakages and pipe bursts. Damaged pipelines allow water to leak through, incur- ring significant
economic losses. Mitigating these losses are important, especially in areas with water scarcity, to
allow consumers to have ade- quate water supply. Globally, as the population increases, there is a
need to make water distribution efficient, due to the rising demand. Thus, leak detection is vital for
reducing the system loss of the network and improving efficiency.
Monitoring WDNs effectively for leakage is often a challenging task due to the size of the area it
covers, and due to the need to detect leaks as early as possible. Traditionally, this is done via
pipeline inspection or physical modeling. However, such techniques are either time-consuming,
resource intensive, or both. An alternative is machine learning (ML), which maps the relationship
between pipeline data to detect leakages. This allows for a faster, yet reasonably accurate model for
detection and localization. Machine learning techniques could be utilized together as an ensemble,
which allows these techniques to work in conjunction with each other. Wavelet decomposition will be
performed on the data to allow for a smaller dataset, as well as utilizing possible hidden features for
the machine learning model.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 13

CRISRON RUDOLF LUCAS
Edison Coseteng Professorial Chair in
Electrical Engineering

Engr. Lucas is currently Assistant Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Digital Signal Processing Laboratory. He finished his Master of Science in Electrical Engineering at the
University of the Philippines. His research interest is in digital signal processing.

VOICE CONVERSION OF PHILIPPINE SPOKEN LANGUAGES USING DEEP
NEURAL NETWORKS

Most of the voice conversion systems available have only focused on the spectral parameter of the
speech such as the spectral envelope. This project developed a voice conversion system that
converts not only the spectral parameters but also the prosodic features of speech, specifically the
Wavelet modeling of the F0 contour, to improve the voice quality and naturalness. This system can
be used in conjunction with text-to-speech systems to introduce personalization and customization to
the speech output. The project was implemented not only in the English language but also in the
context of Philippine Spoken Languages such as Tagalog, Hiligaynon and Cebuano. Results show
that the English voice conversion yielded the highest score in terms of naturalness with 2.7167 Mean
-Opinion Score and Cebuano in terms of intelligibility with 3.0875 Mean-Opinion Score. Using the
objective metrics, results show that Hiligaynon has the lowest Mel-Cepstral Distortion with 5.5335
while English yielded the lowest F0:RMSE with 20.254. Results also showed that intra-gender voice
conversion performs better than inter-gender.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

14 PROFESSORIAL CHAIR AWARD

RHANDLEY CAJOTE, PhD.
Concepcion Hidalgo Sandoval Memorial Foun-
dation Professorial Chair

Dr. Cajote is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with the
Digital Signal Processing Laboratory. He finished his PhD in Electrical Engineering at Chulalongkorn University in 2011.
His research interest is in image and video processing, handwriting recognition, machine vision, stereo imaging, and
pattern recognition.

SPEECH TRACKING ALGORITHMS FOR AN AUTOMATED READING TUTOR IN
FILIPINO

Speech tracking stimulates continuity of reading, improves miscue detection and provides immediate
feedback. Automated reading tutors (ART) need this feature to emulate coaching of human teachers.
A previously developed ART for Filipino (Tanglaw) uses an automatic speech recognizer (ASR) to
implement a miscue detection feature, but it does not track the current reading position. In this
research, experiments on implementing speech tracking for Filipino ART to indicate the word to be
read, in order to mimic guided reading. The next word will be highlighted when the previous word
has been uttered correctly. Results show that using a phoneme-level ASR with online decoding,
dynamic programming with revised cost function, and speaker’s reading rate using words-correct-
per- minute (WCPM) as parameters yield the highest timing accuracy of tracking (TAT) of 41.18%
compared to 29.03% and 37.11% with Levenshtein distance at most one and half word recognized
thresholds, respectively.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 15

FRANZ DE LEON, PhD.
Dona Maria Co Chiao Ti Lim EE Centennial
Professorial Chair

Dr. De Leon is currently Associate Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Digital Signal Processing Laboratory. He finished his PhD in Electronics and Electrical Engineering at the
University of Southampton, United Kingdom in 2014. His research interest is in digital signal processing techniques for
audio and communications, applying signal processing techniques for Philippine indigenous music and in applying
machine learning techniques and pattern recognition for multimedia applications.

REDUCING PULSE RATE VARIABILITY COMPUTATIONAL ERROR FROM A 30 HZ
PHOTOPLETHYSMOGRAPHY RECORDING

ABSTRACT
Smartphone based photoplethysmography (PPG) has been used as a way to provide a portable
health monitoring system. One drawback of using a smartphone to perform photo- plethysmography
is its low sampling rate and the most common way to remedy this is via spline interpolation. In this
paper, we evaluated the effect of different techniques such as interpolation on the computed pulse
rate variability coefficients (PRV). The root mean square error of the computed pulse rate variability
from a PPG recorded in 500 Hz and a corresponding signal down-sampled at 30 Hz was calculated
to show the amount of deviations. The effects on the PRV of different techniques used to increase the
resolution of a signal was evaluated as well. Results show that fitting a curve can reduce the
computational error. Furthermore, re-sampling and interpolation greatly reduced the error with the
former generally outperforming the latter.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

16 PROFESSORIAL CHAIR AWARD

WILBERT JETHRO LIMJOCO
Dean Francisco L. Viray Professorial Chair

Engr. Limjoco is currently Assistant Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Computer Networks Laboratory. He finished his Master of Science in Electrical Engineering at the University of
the Philippines in 2017. His research interest is in computer networks.

LARSS: A RIDER SCORING SYSTEM TO MITIGATE FRAUD IN TNVS

ABSTRACT
The transport network vehicle service industry (TNVS) is vulnerable to some exploitations that result
in heavy losses and inconvenience among drivers and riders. One of its weaknesses is its
susceptibility to phantom bookings, where malicious entities generate multiple fake accounts and are
used to divert drivers away from servicing actual customers. These can similarly be modeled in a
computer network as a Sybil attack, which involves the creation of several nodes, usually from a
single source, for malicious purposes such as controlling a significant portion of the network, and
diversion or acquisition of information. In this study, we have explored the addition of the Learning-
Assisted Reputation Scoring System (LARSS), a trust scoring system that assesses the legitimacy of
riders and deter- mines whether an attack is taking place using machine learning classification
techniques. Using synthetic data on unserviced trips, account creation times, and user ratings,
LARSS was tested on thirty (30) datasets and was found to be 91-97% effective using best-fit
models.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 17

ISABEL MONTES-AUSTRIA, PhD.
Jose P. Segovia Professorial Chair

Dr. Austria is currently Assistant Professor at the Electrical and Electronics Engineering Institute where she is affiliated
with the Computer Networks Laboratory. She finished her PhD in Electrical and Electronics Engineering at the University
of the Philippines in 2016. Her research interest is in computer networks.

DESIGN OF AN IOT-BASED MONITORING SYSTEM USING 6LOWPAN AND
CONTROLLER AREA NETWORK FOR AN INDOOR SMART HYDROPONICS FARM

As the Internet-of-Things becomes more widespread, IoT-enabled systems are being used to
monitor, control and optimize multiple aspects of every day. One such aspect is agriculture,
specifically hydroponics. However, optimization of agricultural systems require the monitoring of
various growth factors for plants. In this paper, a hybrid IoT-based monitoring system, with both
wired and wireless components, with a target indoor farm application is proposed. The system was
implement using Controller Area Network (CAN) for the wired component, IPv6 over Low Power
Wireless Personal Area Network (6LoWPAN) for the wireless component, and Amazon Web Services
for the cloud services. Network simulations were performed to be able to compare the network
performance of the proposed hybrid system and the purely wireless system. The simulation results
show that incorporating a wired system result in improvements such as the reduction of packet loss
from 12.23% in the purely wireless system to 5.62% in the hybrid system with burst traffic and even
down to 0.0% in the hybrid system with continuous traffic.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

18 PROFESSORIAL CHAIR AWARD

NESTOR MICHAEL TIGLAO, PhD.
Edgar & Agnes Paynor EE Centennial
Professorial Chair

Dr. Tiglao is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with the
Ubiquitous Computing Laboratory. He finished his PhD in Electrical and Computer Engineering at the Technical
University of Lisbon in 2013. His research interest is in the broad fields of ubiquitous computing and wireless networks,
Internet of Things and wireless sensor networks.

TCP INCAST SOLUTIONS IN DATA CENTER NETWORKS: A CLASSIFICATION AND
SURVEY

As the Internet-of-Things becomes more widespread, IoT-enabled systems are being used to
monitor, control and optimize multiple aspects of every day. One such aspect is agriculture,
specifically hydroponics. However, optimization of agricultural systems requires the monitoring of
various growth factors for plants. In this paper, a hybrid IoT-based monitoring system, with both
wired and wireless components, with a target indoor farm application is proposed. The system was
implemented using Controller Area Network (CAN) for the wired component, IPv6 over Low Power
Wireless Personal Area Network (6LoWPAN) for the wireless component, and Amazon Web Services
for the cloud services. Network simulations were performed to be able to compare the network
performance of the proposed hybrid system and the purely wireless system. The simulation results
show that incorporating a wired system results in improvements such as the reduction of packet loss
from 12.23% in the purely wireless system to 5.62% in the hybrid system with burst traffic and even
down to 0.0% in the hybrid system with continuous traffic.

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ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 19

LUIS SISON, PhD.
V&L Aesquivel Professorial Chair in
Engineering

Dr. Sison is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with the
Instrumentation, Robotics and Control Laboratory. He finished his PhD in Electrical Engineering at Purdue University in
1998. His research interest is in biomedical engineering and wireless sensor networks.

FLIPPED CLASSROOM APPROACH FOR INNOVATION AND OTHER ENGINEERING
CLASSES FOR REMOTE LEARNING

The flipped classroom approach, where students view online content outside of the classroom and
then do problem-based activities inside the classroom, has been demonstrated to improve learning
outcomes at multiple levels of education, including engineering courses, as well as in 3 course
implementations in UPD EEEI: IE 298 Innovation and Technopreneurship, ECE 117 Instrumentation
Electronics, and EEE 123 Circuits and Electronics 1. In EE# 123, we were able to benchmark the
performance of students under the flipped classroom approach against those under the traditional
classroom lecture approach. We also share some initial strategies and experiences in implementing
the flipped classroom for EEE 123 in a remote learning environment during the pandemic, especially
the integration of online classroom response systems.

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20 PROFESSORIAL CHAIR AWARD

NICOLETTE ANN ARRIOLA
Jose Ma. Diago De Castro Professorial Chair

Engr. Arriola is currently Assistant Professor at the Electrical and Electronics Engineering Institute where she is affiliated
with the Robotics and Automation Laboratory. She finished her Master of Science in Electrical Engineering at the
University of the Philippines in 2015. Her research interest is in robotics, power electronics and solar power.

DEVELOPMENT OF A 3D PRINTED QUADRUPEDAL ROBOT WITH DISTRIBUTED
JOINT CONTROL

Legged robots have opened a lot of possibilities for mobile robotics. Their high maneuverability,
speed, and load capacity make them suitable for many types of operations, even in rough and
unpredictable environments. Recent developments have enabled these legged robots to sense and
react to its environ- ment without the use of computer vision, through proprioception. However, these
robots are very expensive and are far out-of- reach for most academic experimentation and
research. The project develops a prototype of a cost-efficient, 12 degree-of- freedom quadrupedal
robot with quasi-direct drive actuators, using readily available off-the-shelf brushless DC motors. 3D-
printing, due to its ability to handle complex geometries and low cost, is used as the fabrication
process for most of the robot’s parts. Custom joint controllers are responsible for driving the
actuators using Field-Oriented Control. Gait trajectories for each leg are generated using a 12-control
point bezier curve for the swing phases and a cosine function with an amplitude equal to the desired
virtual deflection of the leg for the stance phase. The quadrupedal robot with walk and trot gaits
along with their stationary variants are simulated using Simulink and Matlab. The robot was able to
climb inclines of up to 10 degrees with relative ease. The walk gait, however, completely failed on the
15-degree slope while the trot gait managed to climb with a bit of instability. A single leg assembly
was built and was able to support its own weight, however it was not tested and characterized due to
PCB assembly failure of the joint controller.

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ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 21

MANUEL RAMOS, JR., PhD.
M.G. Carlos Sr. EE Centennial Chair

Dr. Ramos is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with the
Robotics and Automation Laboratory. He finished his PhD in Electrical Engineering at Purdue University in 1998. His
research interest is in control systems, nonlinear control, robotics, and fuzzy systems.

ELECTROMAGNETIC ARTIFICIAL MUSCLE TECHNOLOGIES REVISITED: BASIS
FOR THE DESIGN OF MAGNETIC COUPLED ARTIFICIAL EXOSKELETAL MUSCLE

Most artificial muscles are either pneumatically or thermally driven resulting in robots being bulky,
heavy and inflexible due to additional external pump attachments. With these reasons,
electromagnetic artificial muscles are considered in the design for mobility. However, current designs
for electromagnetic artificial muscles only satisfy either great force to stroke ratio or great force to
weight ratio or low power consumption but none has achieved all three. This study aims to design an
electromagnetically driven magnetic coupled artificial exoskeletal muscle that can exhibit better force
to stroke, force to weight and lesser power. As a result, the prototype was able to attain a force to
stroke ratio of 0.333 N/mm, force to weight ratio of 18.18 N/kg and can consume a maximum of 53.1
Watts of power. Compared to elastic actuator, the prototype was able to satisfy all three advantages
of an electromagnetic artificial muscle.

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22 PROFESSORIAL CHAIR AWARD

CARL MICHAEL ODULIO, PhD.
Daniel Chan D. Reyes Professorial Chair in
Engineering

Dr. Odulio is currently Associate Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Power Electronics Laboratory. He finished his PhD in Electrical and Electronics Engineering at the University of
the Philippines in 2016. His research interest is in power electronics and motor drives.

RECONFIGURABLE FAST CHARGER SYSTEM FOR LITHIUM-ION BATTERIES

As the electric-vehicle industry continues to grow, a more efficient and durable battery pack is
becoming an essential component in building high quality electric cars. One of the parameters
needed for consideration is the treatment of cell imbalance in battery packs. Cell imbalance in
existing lithium-ion battery packs manifest as the difference in cell voltages caused by their state-of-
charge variations. This mismatch causes the pack to be incompletely charged and discharged which
inevitably risks the safety and durability of the battery. Current cell balancing topologies, namely
active and passive balancing topologies, often compromise certain features such as minimum energy
loss, cost-effectiveness, and size in their implementation by incorporating dissipative resistors or
allowing transfer of charge from one cell to another. This usually leads to a more complex design,
inefficient charging, or increased overall balancing time. This paper proposes a reconfigurable
charging topology that eliminates the use of dissipative resistors and involves no energy transfer.
With this topology, the battery pack can be charged more efficiently up to its maximum capacity in
less time. The system is tested using a dc-dc converter to charge a four-cell series-connected lithium
-ion battery pack with a constant current-constant voltage (CCCV) charging protocol. The proposed
design is simulated in LTspice and then validated by comparing its charging time with that of a fixed-
configuration topology simulated using the same software. The results of the two simulations showed
a 2.125-hr and 2.431-hr charging times for the proposed topology and fixed-configuration topology,
respectively. This is equivalent to a potential of more than 10% improvement in the charging speed of
the battery pack. Tests are currently ongoing to further validate the result experimentally.

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ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 23

ALLAN NERVES, PhD.
Manuel V. Pangilinan Professorial Chair

Dr. Nerves is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with the
Electric Power Research Laboratory. He finished his PhD in Electrical Engineering at the Virginia Polytechnic Institute
and State University in 1996. His research interest is in power and energy systems and electricity markets.

PROBABILISTIC OPTIMAL GENERATION DISPATCH UNDER UNCERTAINTY IN
WIND GENERATION AND LOAD

The trend towards the use of renewable energy sources in power generation has highlighted the
need for tools and methodologies that address the uncertainty that these sources introduce to the
power system. Evolving load types and consumption patterns also contribute to the uncertainty in
system modeling and analysis. This study develops a probabilistic optimal generation dispatch
strategy that minimizes the expected total generation cost in a power system with uncertainties due
to the stochastic nature of wind generation and load. For better accuracy and flexibility, the Monte
Carlo Simulation method is used to solve the resulting probabilistic optimal power flow problem. Test
cases using a modified IEEE 30-bus test system show the effectiveness of the proposed
methodology.

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24 PROFESSORIAL CHAIR AWARD

JORDAN REL ORILLAZA, PhD.
Power Contractors Professorial Chair

Dr. Orillaza is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with
the Power Systems Simulation Laboratory. He finished his PhD in Electrical Engineering at the University of Canterbury
in 2013. His research interest is in power systems and electrical machines.

ANALYTICAL MODELLING OF POWER SWING AND VALIDATION USING REAL
TIME DIGITAL SIMULATOR

Grid disturbance is one of the largest areas of concern in the protection of power systems after high
penetration of distributive generation. They are responsible for causing mass blackouts. This paper
analytically derives the equations for resistances and reactances as a function of time. The derived
expressions were validated using real time digital simulator (RTDS) for variation in power factor of
system and frequency of the power swing. Results signify that the derived equations were able to
provide the locus of instantaneous values of the real time power swing occurring in the system for
changes in power factor and swinging frequency. Two dimensional R-X plane and three dimensional
R-X-t space plots were also used to study the static and dynamic variations of impedances in time
domain. The expressions r(t) and x(t) will be useful in determining the instantaneous short circuit
ratios and also for tuning the impedance relays.

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 25

MICHAEL ANGELO PEDRASA, PhD.
Meralco Professorial Chair

Dr. Pedrasa is currently Full Professor at the Electrical and Electronics Engineering Institute where he is affiliated with
the Power Systems Simulation Laboratory. He finished his PhD in Electrical Engineering at the University of New South
Wales in 2011. His research interest is in power systems, renewable energy, and power electronics.

ECONOMIC EVALUATION OF PV GENERATION CURTAILMENT AND VOLTAGE
REGULATION INVESTMENT IN DISTRIBUTION NETWORKS WITH HIGH PV
PENETRATION

The continuing increase of photovoltaic (PV) generation in distribution systems comes with difficulties
in keeping voltages within acceptable limits, especially during peak generation. Two conventional
alternatives exist to solve these overvoltage issues: to install voltage regulation equipment (AVR) or
curtail PV generation, but there is no existing procedure to aid distribution system operators (DSO) in
choosing either solution from an economical perspective. This project presents a methodology to
evaluate the two aforementioned alternatives. The equivalent annual cost of installing automatic
voltage regulator systems in the network was compared to the annual compensation awarded to
curtailed PV generator owners. Several case studies were explored and show that in some situations,
curtailment can be more cost-effective depending on the curtailment compensation scheme used,
amount of PV penetration, location of PV in the network, and demand profiles. Additionally, the
researchers explored the economic viability of using curtailment in con- junction with existing AVR
installations instead of installing additional AVRs.

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26 PROFESSORIAL CHAIR AWARD

LEW ANDREW TRIA, PhD.
Vergara Power Systems Engineering
Professorial Chair

Dr. Tria is currently Associate Professor at the Electrical and Electronics Engineering Institute where he is affiliated with
the Solar Photovoltaic Laboratory. He finished his PhD in Electrical Engineering at the University of South Wales in 2009.
His research interest is in power electronics and solar photovoltaics.

EVALUATION OF A MODULAR STATOR, SEGMENTED ROTOR SWITCHED
RELUCTANCE MOTOR

The switched reluctance motor (SRM) is a fault tolerant machine that relies on reluctance torque for
operation. It can lower machine cost while increasing reliability for applications that most require it.
Different structural design modifications that mitigate its disadvantages such as low torque density
have been explored, but they are mostly limited to individual investigations of their effects. In this
paper, the interaction of these modifications is evaluated in the design of a modular, segmented
stator, segmented rotor, switched reluctance motor (SSSR-SRM). This machine is compared to
published motor structures with partially conventional designs. Finite element analysis is used to
evaluate the machines. The design of a modular motor with independent stator modules and coils is
presented. An output torque comparable to SRMs with conventional parts is shown to be possible
with appropriate stator and rotor segment sizing.

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ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 27

CHRISTIAN ANGELO YAP
Quezon Power Philippines Professorial Chair

Engr. Yap is currently Assistant Professor at the Electrical and Electronics Engineering Institute where he is affiliated
with the Power Systems Simulation Laboratory. He finished his Master of Science in Electrical Engineering at the
University of the Philippines in.. His research interest is in power systems.

A STUDY ON THE EFFECTS OF SATISFACTION ON INTERRUPTIBLE LOAD
SCHEDULING

Demand side management, through interruptible load programs, is the modification of consumer's
electricity consumption such that desired results regarding the timing and load profiles will be
produced. Maximizing interruptible loads can be challenging because of its varying and complex
operational characteristics. This project investigated the effects of incorporating satisfaction to an
interruptible load scheduler. An interruptible load scheduling problem was optimized with two
categories of objective function: with satisfaction and without satisfaction using Genetic Algorithm as
optimization algorithm. Results showed that in different objective function that incorporates consumer
satisfaction, the best type is the addition of willingness. In the perspective of a distribution utility,
adding the willingness function in an interruptible load program is advantageous to it because it has
lesser incentive payments compared to other objective functions that incorporates satisfaction.

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28 PROFESSORIAL CHAIR AWARD

EEEI PROFESSORIAL CHAIR AWARDS COLLOQUIUM

October 26, 2020

Louis Alarcon

Analog Devices, Inc. Professorial Chair
“Gate Current Cancellation using a Replica PMOS & Digital Feedback for Temperature-coefficient Reduction on an Ultra-low Power Voltage

Reference”

Anastacia Alvarez

McArthur delos Reyes
Engineering Centennial Professorial Chair in EE
“Performance Analysis of Hyperdimensional Computing for Character Recognition”

John Richard Hizon

GE Phils. Meter & Instrument Co. Professorial Chair
“An SDR based WSN Testbed for RF Front End Simulation and Experimentation”

Maria Theresa De Leon

Hilary De Leon Professorial Chair
“Design and Implementation of a Self-starting Thermal Energy Harvester with Resonant Startup and Maximum Power Point Tracking Capabilities

for Wireless Sensor Nodes”

Marc Rosales

Manuel M. Lopez UP Centennial Professorial Chair
“Implementation of 6LoWPAN and Controller Area Network for a Smart Hydroponcs System”

Marc Caesar Talampas

Mantaring-Gervasio Professorial Chair
“Hybrid LoRaWAN Localization using Ensemble Learning”

Charleston Dale Ambatali

Alexan Professorial Chair
“Design and Implementation of a Low-Cost Amateur Radio Unit for Cube Satellites”

Adrian Vidal

PLDT-SMART Professorial Chair
“Low-Latency LDPC Decoder using Non-Uniformly Quantized Channel Outputs”

Paul Jason Co

Nippon Telephone and Telegram Professorial Chair
“Space Science and Technology Proliferation in the Philippines through Nationwide University Partnerships”

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ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 29

November 09, 2020 November 16, 2020

Rowel Atienza Nicolette Ann Arriola
Dado and Maria Banatao Institute Professorial Chair Award Jose Ma. Diago De Castro Professorial Chair
“Development of a 3D Printed Quadrupedal Robot with
“Regularization by Mutual Information Maximization”
Distributed Joint Control”
Jhoanna Rhodette Pedrasa
Globe Telecom Inc. Professorial Chair in ECE Carl Michael Odulio
Leak Detection in Water Distribution Networks via Pressure Daniel Chan D. Reyes Professorial Chair in Engineering
“Analysis Using a Machine Learning Ensemble” “Reconfigurable Fast Charger System for Lithium-Ion Batteries”

Crisron Rudolf Lucas Allan Nerves
Edison Coseteng Professorial Chair in Electrical Engineering Manuel V. Pangilinan Professorial Chair
“Voice Conversion of Philippine Spoken Languages using Deep “Probabilistic Optimal Generation Dispatch Under Uncertainty in

Neural Networks” Wind Generation and Load“

Rhandley Cajote Jordan Rel Orillaza
Concepcion Hidalgo Sandoval Memorial Foundation Professorial Power Contractors Professorial Chair
“Analytical Modelling of Power Swing and Validation Using Real
Chair
“Speech Tracking Algorithms for an Automated Reading Tutor in Time Digital Simulator“

Filipino” Michael Angelo Pedrasa
Meralco Professorial Chair
Franz De Leon “Economic Evaluation of PV Generation Curtailment and Voltage
Dona Maria Co Chiao Ti Lim EE Centennial Professorial Chair Regulation Investment in Distribution Networks with High PV
“Reducing Pulse Rate Variability Computational Error from a 30
Penetration“
Hz Photoplethysmography Recording”

Wilbert Jethro Limjoco Lew Andrew Tria
Dean Francisco L. Viray Professorial Chair Vergara Power Systems Engineering Professorial Chair
“LARSS: A Rider Scoring System to Mitigate Fraud in TNVS” “Evaluation of a Modular Stator, Segmented Rotor Switched

Isabel Montes-Austria Reluctance Motor“
Jose P. Segovia Professorial Chair
“Design of an IoT-based Monitoring System using 6LoWPAN and Christian Angelo Yap
Controller Area Network for an Indoor Smart Hydroponics Farm” Quezon Power Philippines Professorial Chair
“A Study on the Effects of Satisfaction on Interruptible Load
Nestor Michael Tiglao
Edgar & Agnes Paynor EE Centennial Professorial Chair Scheduling“
TCP incast solutions in data center networks: A classification and

survey

Luis Sison
V&L Aesquivel Professorial Chair in Engineering
“Flipped Classroom Approach for Innovation and Other

Engineering Classes for Remote Learning”

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30 PROFESSORIAL CHAIR AWARD
UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

ELECTRICAL AND ELECTRONICS ENGINEERING INSTITUTE 31

UP COE TECHNICAL BULLETIN - PROFESSORIAL CHAIR AND TEACHING & RESEARCH GRANTS

32 PROFESSORIAL CHAIR AWARD

ROSABELLE LOUISE A. CARAM
DCCD Engineering Corporation Professorial
Chair

*with co-authors Sinford Anthony V. Ty and Ma. Brida Lea D. Diola

Rosabelle Louise A. Caram is an Assistant Professor at the Institute of Civil Engineering, University of the Philippines
Diliman. She holds a Master’s degree in Environmental Engineering, and a B.S. degree in Civil Engineering from the
same University. Her research interests are on solid waste management, waste utilization, construction management
and sustainable construction materials.

NON-RECYCLABLE PLASTIC WASTE AS PARTIAL BITUMEN REPLACEMENT IN
HOT-MIX ASPHALT

A study conducted in 2015 found that the Philippines generates around 2.7 million tonnes of plastic
waste annually. With 20% of that leaking into canals and waterways, the country ranks as the 3rd
largest contributor to ocean plastic. (Vila, 2018; Reuters, 2019) The study aimed to investigate the
viability of incorporating various post-consumer plastics into Hot Mix Asphalt (HMA) pavements as
partial replacement for bitumen added by dry mix process. Results of asphalt mixtures modified with
various plastic types at similar replacement ratios of plastic to bitumen were then analyzed and
compared with the standards set by the Department of Public Works and Highways (DPWH) for
heavy traffic, surface course asphalt pavements. At 10% weight replacement ratio of bitumen to
plastic, results of the experiments showed satisfactory mechanical performances, as the Marshall
Stability and Flow values for all the resulting modified asphalt mixtures were within the standard
values set by the DPWH. Asphalt modified with mixed plastic and Polyethylene (PE) exhibited the
largest increase in Marshall Stability values at 34% and 30%, respectively. Meanwhile, only the
asphalt mixtures modified with PP and Mixed Plastic satisfied the 3-5% air voids requirement of the
DPWH. However, since the percent air voids of all the resulting dense asphalt mixtures are less than
7%, increased rutting, cracking, raveling, and increased water susceptibility are not expected. (Hainin
& Brown, 2006; McDaniel, 2010) Application of resulting asphalt mixtures show that at 10% bitumen
usage reduced and replaced with plastic, 4.36 tonnes of waste plastics can be upcycled for every 1
km surface course asphalt pavement, assuming a 6.7m road width and 65mm road thickness. These
amount of plastic shows great promise in helping mitigate the plastic pollution problem of the
country, while at the same time strengthening the quality of asphalt pavements.

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