Asanga I Wijesinghe

****, ***** **, *** ****, abhjcx@r.postjobfree.com

Houston, Texas, 77061. 832-***-****

Summary:

A Researcher & Certified LabVIEW Associate Developer with experience in concepts and techniques essential in

research and industry involving Instrumentation Physics, Electrical, Electronic and Mechanical Engineering .

Education:

Ph.D. in (Instrumentation) Physics: University of Houston, Houston, Texas, December 2012

• Research: Quantum Mechanisms of Density Wave Transport. (Advisor Dr. John H. Miller)

A study of density wave electron transport properties on needle-like crystals of niobium triselenide (NbSe3). The work

involved a theory (computer simulations using the Schrödinger equation), experiments (electrical transport

measurements (LabVIEW FPGA)) and design (low pressure cryogenic system), which led to a new development in the

quantum picture of electron transport.

M.Sc. in (Nano Biophysics) Physics: University of Houston, Houston, Texas, May 2008.

• Research: Capacitive Sensors for Measuring Membrane Potential. (Advisor Dr. John H. Miller)

A study of dielectric properties on yeast cell suspension. The work involved designing and constructing of a dielectric

sensor and an impedance analyzer with a custom build operational amplifier circuit and lock-in amplifier. Simulate

the field distribution using Finite Element Analysis (FEA) method (using COMSOL Multiphysics).

B.Sc. in Physics (Minor-Chemistry): University of Peradeniya, Sri Lanka, May 2004.

Certification:

• Certified LabVIEW Associate Developer (CLAD), National Instrument

• PEC Basic / SafeGulf / SafeLand safety & training Certification

• Diploma in Computer Science

Skills:

• Capability in designing and building custom instruments (C2000, PIC, AVR (Arduino) Micro-controllers, Op-amp, filters,

etc

• Expert level experience in LabVIEW (TCP/IP, GPIB, RS232, SCXI, Compact DAQ, Compact DAQ RIO, sbRIO, Field Point,

FPGA,)

• Experience in MATLAB/Simulink with C2000 DSP.

• Hands-on skills with power and hand tools.

• Work experience with Oscilloscopes, Impedance analyzers, Spectrum analyzers, Lock-in amps, Signal generators, Temperature

controllers (PID), Current sources, Voltmeters, PC based simulating systems for microprocessors, Smoke meters, FTIR, NOx

sensors, Flow meters( Liquid, Gas), Pressure Sensors, Temperature Sensor (RTD, Thermocouple types K and J).

• Operation and maintenance of a Cryogenic system, Vacuum pumps, Dynamometer, FT-IR.

• Software- LabVIEW, C, MATLAB, Simulink, FEA (COMSOL Multiphysics), Solidworks, Embedded Programming (PIC, TI

C2000, AVR (Arduino)), Proteus, CCS, Eagle, Origin, LATEX, MS-Office (Word, Excel, PowerPoint), Linux.

Work Experience:

Houston Advanced Research Center Houston, TX: Engines and Emissions control (Program Associates)

(From October 2012 to date)

• Set up a LabVIEW based data acquisition and Control system for the heavy duty diesel engine test (RS 232, SCXI, NI CAN and

NI DAQ: AVL Smoke meter, FTIR gas analyzer, Dynamometer, Thermocouples, Flow meters and Pressure sensors).

• Set up of diesel engines and test equipment for data collection, design (Solidworks) and fabrication of small parts necessary

fixtures, Perform various engine performance related tests and emission tests (EPA test Cycle).

• Design and construction of a PID temperature controlled (LabVIEW, AVR Microcontroller) high temperature (0-700 0C) tubular

reactor for SCR catalysts test.

• Design and construction of a Real time emission monitoring and data logging system (Temperatures-RTD’s, CAN based N0x

Sensors, Barometer TCP/IP) for the dual fuel diesel engines used in Halliburton hydraulic fracturing site.

Texas Center for Superconductivity Houston, TX: High Temperature Superconductivity and Device Application Lab

& Nano Biophysics Lab (Research Assistant)

(From May 2007 to Dec 2012)

• Design and construction of a cryogenic system and development of LabVIEW automated IV, CV, DVDI, pulse and microwave

frequency mixing (RF-high) measurement setups/circuits.

• Design and fabrication of microelectrodes on alumina and silicon substrate using general semiconductor processing.

• Development of C algorithms to simulate the Density wave transports by solving the Schrödinger equation.

• Design (AutoCAD) and construction of a capacitive sensor using photolithography techniques to measure dielectric properties of

biological samples and model (3-D) its electric field distribution using FEA method (COMSOL Multiphysics).

• Design and construction of a LabVIEW automated high-sensitive, low-noise and wide frequency response impedance analyzer

using a custom build operational amplifier circuit and Lock-in amplifier.

• Supervision and guidance of an undergraduate student's research work.

University of Houston, Houston, TX: Department of Physics (Teaching Assistant) (From Aug 2006 to May 2007)

• Taught undergraduate level physics labs.

• Shared responsibility for exams, homework assignments and grades.

Sri Lanka Standards Institution (SLSI) Sri Lanka: Calibration / Metrology Department (Research Intern) (May,

2003 to June, 2003)

• Studied the basic concepts of measurement and calibration.

Achievements/Honors:

• Graduate Assistant Tuition Fellowship, University of Houston, Houston, TX (Aug 2006- Aug 2011).

• Secretary of the Sri Lankan Student Association, University of Houston, Houston, TX (2009).

• Honors in Bachelor of Science in Physics, University of Peradeniya, Sri Lanka (May 2004).

• Place 1st in the Power Lifting “Class 56 Kg" at University games (2001), University of Peradeniya, Sri Lanka.

• Runner up “Fly Weight" at the Intermediate Boxing tournament (1996), Amateur Boxing Association of Sri Lanka.

Conferences and Presentations:

• Participate National Instruments workshop, “Build your own embedded system (Single Board RIO) ”, Houston, TX (May

2013)

• Participate National Instruments “ Houston area Labview Developer day”, Houston, TX (April 2013)

• “Quantum Nucleation of Charge and Flux Solitons", John H. Miller, Asanga I. Wijesinghe, Z. Tang, M. Guloy, International

Research School-Workshop on Electronic Crystals, France (ECRYS-2011).

• “Time-Correlated Soliton Tunneling in Density Waves", Asanga I. Wijesinghe, John H. Miller, Zhongjia Tang, Arnold M.

Guloy, March Meeting, American Physical Society (APS-2011), Dallas,Tx.

• “Dielectric Sensors for Measuring Membrane Potential", Kimal Rajapakshe, Asanga Wijesinghe, Jie Fang, William Widger,

John Miller, March Meeting, American Physical Society (APS-2011), Dallas,Tx.

• “Quantum Tunneling Mechanism of Density Wave Transport", Asanga I. Wijesinghe, John H. Miller, 41st Semiannual Student

Symposium (Dec 2010), Texas Center for Superconductivity, Houston, Tx.

Publications:

• “Dual Loop EGR in Retrofitted Heavy-duty Diesel Application” Yiquan Huang, John Colvin, Asanga Wijesinghe, Meng Wang,

Dayang Hou: Society of Automotive Engineers (SAE) international, 2014.

• “Demonstration of a Verification-ready, Retrofittable Dual-loop EGR System for NOx Reduction without Aftertreatment” Yiqun

Huang, Deyang Hou, Asanga Wijesinghe, John Colvin: Final report for New Technology Research and Development Program

funded by Texas Commission on Environmental Quality (April 10, 2013)

• “Magnetic Blockade Mechanism for Quantum Nucleation of Superconducting Flux Vortex Pairs in Zero External Magnetic

Fields" J. H. Miller Jr., A. I. Wijesinghe, Submitted to: Physical Review B.

• “The effects of electric and magnetic fields on charge density wave Solitons: Possible collective quantum behavior”, J. H.

Miller Jr., A. I. Wijesinghe, The European Physical Journal Special Topics, 222, 5,1017 (July 2013)

• “Correlated Quantum Transport of Density Wave Electrons" J. H. Miller Jr., A. I. Wijesinghe, Z. Tang, A. M. Guloy,

Physical Review Letters. 108, 036404 (2012).

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