Director of Subsurface Sensing Lab . Associate Professor at the University of Houston (Texas)
B.S in Radio Engineering, 1981. M.S in Microwave Engineering, 1984
Ph.D in Electrical Engineering, 1988. At Xian Jiaotong University, Xian, P.R China

Publications 
Patent Applications 
Funded Researches 
Teaching Experiences 
Honor and Awards 
Services 
Memberships

Publications

1. In Referred Journals

Published and Accepted Papers

K. Z. Hu and C. Liu, 2000, Theoretical study of the dielectric constant in porous sandstone containing rock grains, oil and water, to be published on IEEE Transactions on Geosciences and Remote Sensing

J. Li, and C. Liu, 2000, "A 3-D transmission line matrix method (TLM) for simulations of logging tools," accepted for publication, IEEE Transactions on Geoscience and Remote Sensing.

M. Feng, C. Liu, X. He, and M. Shino, 2000, "Electromagnetic image reconstruction for damage detection," June, Journal of Engineering Mechanics.

R. Deng, and C. Liu, 1999, "Analysis of the FM-CW radar in a layered lossy media, Journal of Applied Geophysics," 42, pp 23-33.

Z. Wu, and C. Liu, 1999, "An image reconstruction method using GPR data," IEEE Transactions on Geosciences and Remote Sensing, Vol. 37, No. 1, pp. 327-334, January. 1999.

S. Darayan, C. Liu, L. C. Shen, and D. Shattuck, 1998, "Measurement of electrical properties of contaminated soil," Geophysical Prospecting, Vol. 46, No. 5, pp 477-488, September 1998.

X. Tian, C. Liu, and L.C. Shen, "A Stable algorithm for simulation of array induction and MWD logging tools," Radio Science, Vol. 33, No. 4, pp. 949-956, July-August, 1998.

C. Liu and H.X. Wu, 1997, "Computation of the effective dielectric constant of a two-component, three-dimensional composite materials using simple poles," Journal of Applied Physics, Vol. 82, No. 1, July, 1997.

Y. C. Zhang, C. Liu and L. C. Shen, 1996, "An iterative algorithm for conductivity image reconstruction from cross-hole electromagnetic measurements," Geophysics, Vol. 61, No. 4.

C. Liu and Q. Zou, 1996, "A simplified Fourier series expansion method for computing the effective dielectric constant of a two-component, three-dimensional composite material with geometric symmetry," Modeling and Simulation in Materials Science, Vol. 4, pp. 55-71.

Y. Zhang, C. Liu, and L. Shen, 1996, "A TLM model of a borehole electromagnetic sensing system," Journal of Applied Geophysics, Vol 36, pp77-88.

S. Darayan, D. Shattuck, L. C. Shen, and C. Liu, 1996, "Measurement of dielectric permittivity and conductivity of samples using guarded electrodes," Radio Science, Vol. 31, No. 6, pp 1417-1426.

Y. M. Zhang, C. Liu and L. C. Shen, 1996, "Performance evaluation of MWD logging tools using magnetic and electric dipoles by numerical simulations," IEEE Transactions on Geosciences and Remote Sensing, Vol. 34, No. 4, pp 1039-1044.

M. Huang, C. Liu and L. C. Shen, 1995, "Monitoring the contamination of soils by measuring their conductivity in the laboratory using a contactless probe," Geophysical Prospecting, Vol. 43, pp 759-778.

M. Huang, C. Liu, L. C. Shen, and D. Shattuck, 1995, "Laboratory conductivity measurement using a contactless coil-type probe," The Log Analyst, May-June, pp. 82-90.

Y. M. Zhang, and C. Liu, 1995, "A space marching inversion algorithm for pulsed borehole radar in the time domain," IEEE Transactions on Geosciences and Remote Sensing, Vol. 33 (3), pp. 541-550.

C. Liu, Y.C. Zhang, and L. C. Shen, 1995, "Monitoring salt water injection using conductivity images obtained by electromagnetic cross-hole measurements," Radio Science, Vol. 30, No. 5, pp. 1405-1415.

Y. C. Zhang, L. Shen, and C. Liu, 1994, "Inversion of induction logs based on maximum flatness, maximum oil and minimum oil algorithm," Geophysics, Vol. 59, pp. 1320-1326.

C. Liu, 1994, "The Computation of the equivalent Inductive circuit for arbitrary number of E-Plane metal inserts in rectangular waveguides," Microwave and Optical Technology letters, Vol. 7, No. 10, July, pp. 470-474.

C. Liu, and L. Shen, 1993, "Dispersion characteristics of two-component, two-dimensional mixtures, Modeling and Simulation in Materials Science and Engineering," 1, pp. 723-730.

C. Liu, and L. Shen, 1993, "Dielectric constant of two-component, two-dimensional mixtures in terms of Bergman-Milton simple poles," Journal of Applied Physics, 73(4), 15, pp. 1897-1903.

X.L. Zhao, C. Liu, and L. C. Shen, 1992, "Numerical analysis of a TM010 cavity for dielectric measurement," IEEE Trans. Microwave Theory and Techniques, Vol. 40, Oct., pp. 1951-1959.

C. Liu, and L. C. Shen, 1991, "Numerical simulations of subsurface radar for detecting buried pipes," IEEE Transactions on Geosciences and Remote Sensing, Vol. 29, No. 5, September, pp. 795-798.

C. Liu, and L. C. Shen, 1991, "Response of electromagnetic-pulse logging sonde in axially-symmetrical formation," IEEE Transactions on Geosciences and Remote Sensing, Vol. 29, No. 2, March, pp. 214-221.

L. C. Shen, C. Liu, K. J. Dunn, and Y. Korringa, 1990, "Computation of conductivity and dielectric constant of periodic porous media," Journal of Applied Physics, 67 (11), June, pp. 7071-7081.

C. Liu, E.X Feng, J. M Fu, and L.Ren, Three Dimensional TLM method in cylindrical coordinates with applications in well logging problems, Journal of Xian Jiaotong University, (in Chinese), Sept. 1989.

M. Wen, and C. Liu, A new direct coding for the data transmission through FM radio channel--PWM-FSK modulation, Communication Journal (in Chinese) No. 6, June 1989.

C. Liu, The Equivalent circuit of arbitrary E-plane inductive fin-line structures, Journal of Electronic Science and Technology (in Chinese) No. 2, February 1989.

C. Liu and C. L. Gao, The design of microwave bandpass filters using E-plan metal inserts, Journal of Xian Jiaotong University (in Chinese), Sept. 1987.

Submitted Papers

X. M. He, C. Liu and X.M. Chen, "Continuous-wave conductivity and dielectric constant image reconstruction" submitted to Research in non-destructive evaluation, January 1999.

M. He, C. Liu, X.M. Chen, S.Y. Wang, and S.T. Mau, "Locating missing manholes and service lines using an induction sensor," submitted to Journal of infrastructure systems, Feb. 1999.

J. Li and C. Liu, "Perfectly-matched-layer (PML) absorbing boundary conditions for 3-D transmission line matrix (TLM) method in cylindrical coordinates," submitted to IEEE Transactions on Microwave Theory and Technology, July 1999.

Y. Yu and C. Liu, "Image reconstruction using direct current with alpha centers method," submitted to Geophysical Prospecting, Nov. 1999.

J. Li and C. Liu, "Transmission line matrix and current equivalency method (TLM-CE) for line antenna analysis," submitted to IEEE Transactions on Electromagnetic Compatibility, April 2000.

C. Liu, J. H. Zhang, Q. Zhou, and Michael Wilt, "Monitoring steam injection using crosswell two-dimensional conductivity imaging," submitted to IEEE Transactions on Geoscience and Remote Sensing, April, 2000.

2. In Conference Proceedings

Published and Accepted Papers

R. He, C. Liu, X. Chen, W. Ma, and D. Chen, "Establishment of reliable methodologies to determine in-situ moisture content of base-layer and subgrade soils," 14th. Engineering Mechanics Conference (EMD2000), Austin, May 21 through 24th, 2000

J. Li, and C. Liu, "A three-dimensional transmission line matrix method in cylindrical coordinates," Progress in Electromagnetic Research Symposium (PIERS 2000), Cambridge, Massachusetts, July, 2000.

J. Li, and C. Liu, "Perfectly-Matched-Layer (PML) Absorbing Boundary Conditions for 3-D Transmission Line Matrix (TLM) Method in Cylindrical coordinates," Progress in Electromagnetic Research Symposium (PIERS 2000), Cambridge, Massachusetts, July, 2000.

Q. Zhang, C.Liu, and X. Chen, "A Multi Frequency EM Image System," Subsurface Sensing Technologies and Applications II, San Diego, CA, July 2000.

J. Li and C. Liu, "Analysis of Vivaldi Antenna over a Heterogeneous Ground using a 3-D TLM Method," IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2000), Honolulu, Hawaii, July 2000.

C. Liu, "Application of low cost spread spectrum radio for earthquake monitoring," US-Japan Center to Center Cooperative Research on Advanced Technologies for Urban Earthquake Disaster Mitigation, Kyoto, Japan, July 2000.

C. Liu and S.T. Mau, "Wireless sensors for structural monitoring," NATO Advanced Research Workshop on Strong Motion Instrumentation for Civil Engineering Structures, Istanbul, Turkey, June 1999.

C. Liu, "Design of a RF Power Oscillator Circuit for Plasma Lamps," Ninth International Conference on Applications of Microwave Power, Kunming, China, August 1999.

J. Li and C. Liu, "A Three-Dimensional Transmission Line Matrix Method in Cylindrical Coordinates," Ninth International Conference on Applications of Microwave Power, Kunming, China, August 1999.

C. Liu, "Application of low cost spread spectrum radio for earthquake monitoring," US-Japan Center to Center Cooperative Research on Advanced Technologies for Urban Earthquake Disaster Mitigation, Kyoto, Japan, July 1998.

R. Deng, and C. Liu, "Analysis of the FM-CW radar in layered lossy medium", 6th International Conference on Ground Penetrating Radar, Sendai, Japan, Sept. 30, 1996.

Z. Wu, and C. Liu, "An image reconstruction method using GPR data," 6th International Conference on Ground Penetrating Radar, Sendai, Japan, Sept. 30, 1996.

C. Liu and Q. Zou, "A simplified Fourier series expansion method for computing the effective dielectric constant of a two-component, three-dimensional composite material with geometric symmetry," Progress in Electromagnetic Research Symposium, Seattle, Washington, June 1995.

C. Liu, Y. C. Zhang, and L. C. Shen, "Monitoring salt water injection using conductivity images obtained by electromagnetic cross-hole measurements," Progress in Electromagnetic Research Symposium, Seattle, Washington, June 1995.

Y. M. Zhang and C. Liu, "A space marching inversion algorithm for pulsed borehole radar in the tim-domain," Fifth International Conference on Ground Penetrating Radar, Kitchener, Ontario, Canada, June 1994. S.Q.

Xie, D. Lan, J. Wang, Y.M. Zhang, R. Liu and D. Shattuck, "The development of an advanced GPR at the University of Houston," Fifth International Conference on Ground Penetrating Radar, Kitchener, Ontario, Canada, June 1994.

Johan Nystrom and Ce Liu, "Direct wave cancelation technique applied to the signal processing of ground penetrating radar," 1992 International Geoscience and Remote Sensing Symposium, Houston, Texas, May 29, 1992

Ming Huang, Ce Liu and Liang C. Shen, "Laboratory conductivity measurement using a contactless coil-type probe," SPWLA/CWLS annual meeting, Calgary, Canada, June 1993.

C. Liu and Liang C. Shen, "Response of electromagnetic-pulse logging sonde in an axially-symmetrical formation," 1990 AP-S Symposium, Dallas, May 1990.

C. Liu and Liang C. Shen, "Numerical simulation of subsurface radar for detecting buried pipes," Third International Conference on Ground Penetrating Radar, Denver, June 1990.

3. Published Books

J. M. Fu and Ce Liu, Microwave Network Analysis and Synthesis (in Chinese), Xian Jiaotong University Press, February 1989.

C. Liu, Microwave Nondestructive Testing, printed by Xian Jiaotong University (in Chinese), May 1988.
Back to top

Patent Applications

Liu, C., Method and arrangements for transmitting high-speed data over reduced bandwidth communication resources, US patent application, 1998.

Liu, C., Methods and arrangement for transmitting data over twisted pair wire using RF modulation techniques, US patent application, 1998.

Liu, C., Transmit/receive switch for 10Base-T home network, US patent application, 1998.

He, M., and Liu, C., Method and apparatus for providing a 10Base-T compatible home network over a single twisted-pair phone line, US patent application, 1998.

Liu, C. and He, M., Method and apparatus for recovering data from a differential phase shift keyed signal, US patent application, 1998.

Donald A. Maclennan, Doug Kirkpatrick, and, Liu, C. Richard, Self-matched lamp circuit with reduced pre-ignition feedback load, US patent application, 1999
Back to top

Funded Research

1998 - 2001 National Science Foundation, "Assessment of bounding conditions between RC structures and advanced composite jackets", $80,000, Principal Investigator

1999 - 2001 Texas Higher Education Coordinate Board, "Development of a wireless integrated moisture sensor for pavement moisture content monitoring," $114,900, Principal Investigator.

2000-2002 Texas Department of Transportation, "Development of Laser and Radar Texture Measurement Devices," $300,000, Principal Investigator.

2000-2001 Texas Department of Transportation, "Crack Identification Systems," $80,000, Principal Investigator.

2000-2001 Texas Department of Transportation, "Concrete Thickness Measurement Devices," $100,000, Principal Investigator.

1999 - 2000 Texas Department of Transportation, "Feasibility study on nondestructive testing techniques to measure PCC pavement thickness," $40,000, Principal investigator

1999-2001 Texas Department of Transportation, "Moisture sensor and laser profiler", $98,000

1997-2000 Texas Department of Transportation, "Development of short range sensors for pavement property evaluations," $220,000, Principal investigator

1998-2000 Texas Higher Education Board, ATP Program, "Development of a remote highway pavement inspection system," $120,000, Principal Investigator.

1999 - 2000 Consortium of 13 oil and service companies, $150,000, Well logging research projects, L. C. Shen, C. Liu (20%), and D. Shattuck.

1998-1999 National Science Foundation, "Research experience for undergraduate students (REU) program," $7,500, Principle investigator.

1998-1999 Texas Department of Transportation, "Automatic crack monitoring system", $120,000, Principal Investigator

1998-1999 Texas Department of Transportation, "Development of an automatic triggering system for TxMLS", $60,000

1998- 1999 National Center for Earthquake Engineering, "Rehabilitation strategies for lifelines: LADWP power system," $70,000, Principal Investigator.

1995 - 1999 National Science Foundation, $183,000, "Intelligent urban waste water system renewal- condition assessment," Principal investigator.

1996-1998 Texas Department of Transportation, "Measurement of pavement moisture content," $85,000, Principal Investigator.

1997-1999 Texas Department of Transportation, "Development of short range sensors for pavement property evaluations," $150,000, C. Liu and S.T. Mau.

1997 - 1998 Consortium of 14 oil and service companies, $160,000, Well logging research projects, L. C. Shen, C. Liu and D. Shattuck.

1996 - 1997 Consortium of 14 oil and service companies, $160,000, Well logging research projects, L. C. Shen, C. Liu and D. Shattuck.

1996 - 1998 Texas Higher Education Board, $116,000, "Development of a sewage pipe image system" Principal investigator.

1995 - 1997 Montgomery-Watson, Inc., $42,000, Pipe condition assessment, Principal investigator.

1995 - 1996 Consortium of 14 oil and service companies, $160,000, Well logging research projects, L. C. Shen, C. Liu and D. Shattuck.

1994 -1995 Energy Laboratories, $4,500, EM tomography projects, Principal investigator

1994-1995 Environmental Institute of Houston, $7,500, Environmental detection project.

1993 - 1994 Consortium of 15 oil and service companies, $170,000, well logging research Projects, L. C. Shen, C. Liu and D. Shattuck.

1993 - 1994 Texaco, $15,000, Subsurface sensing research Projects, C. Liu, L. C. Shen and D. Shattuck.

1992 - 1993 Coastal Center of Houston, $4,500, GPR research projects, PI.

1991 - 1992 OYO Geospace, BP and TEXACO, $45,000, Subsurface sensing research projects, C. Liu, L.C. Shen, and D. Shattuck.

1991 - 1993 Texas Higher Education Board, $150,000, Subsurface sensing projects, L. C. Shen, C. Liu and D. Shattuck. .

1992 - 1993 ARCO, BP and TEXACO, $45,000, Subsurface-sensing research projects, C. Liu, L.C. Shen, and D. Shattuck.

1992 - 1993 Energy Laboratory, $5,000, EM tomography research projects, C. Liu.

1992 - 1993 Consortium of 16 oil and service companies, $170,000, Well logging research projects, L. C. Shen, C. Liu and D. Shattuck.

1991 - 1992 Consortium of 15 oil and service companies, $150,000, Well logging research projects, L. C. Shen, C. Liu and D. Shattuck.
Back to top

Teaching Experiences

Courses Taught:

Microwave Theory and Technology

Microwave Experiments

Networks I (ECE2300)

Introduction to Electric Circuits and Systems (ECE2336)

Electrical Engineering Analysis I (ECE3337)

Engineering Analysis II (EE3338)

Automatic Control and System Theory (ECE4375)

Static Electromagnetics (ECE4337)

Dynamic Electromagnetics (ECE4338)

Signals and Communications (ECE6330/5376)

Electronics Lab (ECE2100)

Engineering Mathematics (ECE6382)

Wireless Telecommunications Systems (ECE6332)

Circuits and Devices in Telecommunication System (ECE 7397)

Course Development (Graduate level):

Wireless Telecommunication Systems (1996)

Circuits and Devices in Telecommunication Systems (1999)

Subsurface Sensing Technologies (2000)

Course Development (Undergraduate level):

RF and Microwave Circuit Design (1999)
Back to top

Honor and Award

Invited speaker, Workshop on the US-Japan Center to Center Cooperative Research on Advanced Technologies for Urban Earthquake Disaster Mitigation, Kyoto, Japan, July 11-14, 2000.

Session organizer and chair, Progress in Electromagnetic Research Symposium, (PIERS2000), Cambridge, MS, July 2000 (in progress)

Keynote speaker, 9th Microwave Application Conference, Kunming China, August 1999

Invited speaker, NATO Advanced Research Workshop on Strong Motion Instrumentation for Civil Engineering Structures, Istanbul, Turkey, June 1999.

Best Reviewer, IEEE Transactions on Geoscience and Remote Sensing, 1999.

Invited speaker, US-Japan Disaster Management Workshop, Kyoto, Japan, June 1998.

Proposal Review Panel, National Science Foundation, NDT Programs, 1999.

Proposal Review Panel, National Science Foundation, NDT Programs, 1997.

Proposal Review Panel, National Science Foundation, SBIR Programs, 1998.

Session Chair, "Numerical Methods in GPR", 6th International Conference on Ground Penetrating Radar, Sendai, Japan, Sept. 30, 1996.

Member, Technical Advisory Committee, Texas Department of Transportation

Guest Professor, Xian Petroleum Institute, Xian, China, 1995.

Honorary Professor, Jianghan Petroleum Institute, Jianghan, China, 1999.
Back to top

Service to the Professional Organizations

Reviewer, IEEE Transactions on Geoscience and Remote Sensing

Reviewer, Geophysics

Reviewer, Applied Geophysics

Reviewer, Electronic Letters, IEE publications

Reviewer, SPE Journal

Reviewer, IEEE Transactions on Circuit and Systems

Reviewer, Geophysical Prospecting

Reviewer, Microwave and Lightwave Letters

Service to the University of Houston

Representative for the College of Engineering to Academic Computing Advisory Committee (ACAC), 1996 - 1998

Representative for the Electrical and Computer Engineering, College Computing Committee, 1999 - Open Lab Coordinator, Undergraduate Electronic Labs, Since 1999.
Back to top

Membership in Professional Organizations

Professional Engineer, State of Texas

Senior Member, Institute of Electrical and Electronic Engineers (IEEE)

Member, Environmental and Engineering Geophysical Society (EEGS).

Member, Society of Professional Well Logging Analysts (SPWLA).

Member, Society of Core Analyst (SCA)

Member, Home RF Working Group
Back to top