Research and Publication : N. M. Alam Chowdhury

Dhaka University of Engineering & Technology (DUET), Gazipur

Department of Electrical & Electronic Engineering

Research Conducted by :

Dr. N. M. Alam Chowdhury

Professor

Department of Electrical and Electronic Engineering

Dhaka University of Engineering & Technology (DUET),

Gazipur 1700, BANGLADESH

Phone : +880 2 9204734

Email : [email protected]

Research Experience

2005 to 2006

Designed and constructed a low cost anechoic chamber for antenna characterization. To keep the investment within the affordable limit, use locally available polyurethane foam as absorbent and other materials

2000 to 2002

· Developed a new algorithm for the efficient implementation of Integral Equation of Measured Equation of Invariance (IE-MEI) method to solve the full three-dimensional (3D) scattering problem

· Explore the insensitive properties of MEI coefficient for modified scattering objects

· Introduce a new technique of reduction of MEI coefficient computational time

1996 to 1997

· Developed a new EMC antenna, which can simulate highly directive standard EM waves to measure shielding effectiveness of a planner sheet. The proposed antenna has been formed by placing a one-sixth of conducting loop-wire in front of a 60 degree corner reflector

· Developed the mathematical model of such a quasi-shield probe called H-loop and the characteristics of this antenna have been compared with those of existing similar type of antenna

· The designed H-loop antenna has been constructed and check the results with the theoretical one

Professional Publication

In Refereed Journals

Shaheen Hasan Chowdhury, N.M.Alam Chowdhury and Md. Shjahid Ullah. “An Analysis on Oscillating Processes of Electro-magnetic Vibro-exciter Fed by Controlled Rectangular Pulse Generator”, Journal of IEB, vol. EE 32, no. I & II, pp. 38-41, Dec. 2005.

N.M.Alam Chowdhury, and Md. Shahid Ullah, “Removal of Resonant Solution of Electromagnetic Scattering Problem”, Journal of IEB, vol.EE 32, no. I & II, pp. 67-71, Dec. 2005.

Md. Shahid Ullah, N.M.Alam Chowdhury, Shaheen Hasan Chowdhury and Md. Sekendar Ali, “Cartesian Coordinate Transient Stability Assesment of Large Power System: Simultaneous Approach”, Journal of IEB, vol.EE 32, no. I & II, pp. 117-120, Dec. 2005.

N.M.Alam Chowdhury, Mohammad Shahed Akond, and Shahid Ullah, “The FMM-MoM Method for Solving Electromagnetic Scattering Problem”, Journal of IEB, vol.EE 31, no. I & II, pp. 32-37, Dec. 2004.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "Applicability of Insensitive Properties of MEI Coefficient for Modified Scattering Objects", Japanese Journal of Applied Physics, vol. 43, no. 6A, pp. 3620-3623, 2004.

N. M. Alam Chowdhury, J.Takada, M. Hirose, "A New Technique of Reduction of MEI Coefficient Computational Time for Scattering Problem", IEICE Transaction on Fundamentals, vol. E86-A, no. 4, pp. 950-953, April 2003.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "Novel Formulation for the Scalar-field approach of IE-MEI method to Solve the Three-dimensional Scattering Problem", IEICE Trans. Fund. vol. E85-A, no. 8, pp.1905-1912, Aug. 2002.

Md.Shahid Ullah, N.M.Alam Chowdhury & L.Roy, "Cartesian Coordinate Transient Stability Studies of Large Power Systems : Sequential Approach", Journal of the Institute of Engineers, Singapore (IES), vol. 39, no. 3, pp. 47-52, 1999.

Md.Shahid Ullah, N.M.Alam Chowdhury & L.Roy, "Transient Stability Studies Using Second Order Transient Load Flow (SOTLF) Technique", Journal-Institution of Engineers, Malaysia, vol. 60, no. 4, pp. 73-77, 1999.

N.N.Mollah, E.Kabir, N.M.Alam Chowdhury & Shahidullah, "Formation of Slow Wave Structure (SWS) Using a Partially Filled Smooth Walled Cylindrical Waveguide (SCW) With a Dielectric Linear and Prediction of Cerenkov Resonance", Journal of IEB, vol. EE 27, no. 1, pp. 1-3, June 1999.

Md.Shahid Ullah, N.M.Alam Chowdhury & L.Roy, "Cartesian Coordinate Transient Stability - Including Exciter and Governor", Journal of IEB, vol. EE 26, no. I & II, pp. 21-26, Dec. 1998.

Md.Shahid Ullah, N.M.Alam Chowdhury Md.Shaheen Hasann Chowdhury & Mohammad Abdul Mannan, "Transient Stability Studies Using New Generator Model", Journal of IEB, vol.EE 26, no. I & II, pp. 33-37, Dec. 1998.

Md.Shahid Ullah, N.M.Alam Chowdhury, N.N.Mollah & Sekendar Ali, "Fast Transient Stability Assessment Retaining Non-Linearity", Journal of IEB, Vol.EE 26, No. I & II, pp. 43-47, Dec. 1998.

N.M.Alam Chowdhury, P.K.Saha, "A New Type of Loop Antenna for EMC Measurement", Journal of IEB, vol.EE 25, no. I & II, pp. 81-85, Dec. 1997.

Md.Shahid Ullah, N.M.Alam Chowdhury & L.Roy, "Cartesian Coordinate Transient Stability Solution", Journal of IEB, vol.EE 25, no. I & II, pp. 87-92, Dec. 1997.

N.M.Alam Chowdhury, P.K.Saha and N.N.Mollah, "Necessity of EMC Practice in Bangladesh", Journal of IEB, vol.EE 24, no. I & II, pp. 81-86, Dec. 1996.

Conference Proceedings

N. M. Alam Chowdhury, M.A.Mannan and Md.Shahid Ullah, "Internal Resonance Solution of Spurious Problem of Resonant Cavity", Proc. 4^th International Conference on Electrical Engineering (ICEE) and 2^nd Annual Paper Meet, pp. 112-114, Organized by Electrical Engineering Division, Institution of Engineers, Bangladesh, January 26-28, 2006.

Shazzat Hossain, N.M.Alam Chowdhury and Pronab Kumar Saha, "Cost Effective Approach of Anechoic Chamber for Antenna Measurement", Proc. 4^th International Conference on Electrical Engineering (ICEE) and 2^nd Annual Paper Meet, pp. 115-118, Organized by Electrical Engineering Division, Institution of Engineers, Bangladesh, January 26-28, 2006.

M.A. Mannan, N.M.Alam Chowdhury and Shazzat Hossain, "A Fast Algorithm for Solving Boundary Value Electromagnetic Scattering Problem", Proc. 4^th International Conference on Electrical Engineering (ICEE) and 2^nd Annual Paper Meet, pp. 119, Organized by Electrical Engineering Division, Institution of Engineers, Bangladesh, January 26-28, 2006.

Shazzat Hossain, N.M.Alam Chowdhury and M.A. Mannan, "Characterisation of RF Antenna by Using Low Cost Anechoic Chamber", Proc. 4^th International Conference on Electrical Engineering (ICEE) and 2^nd Annual Paper Meet, pp. 120-123, Organized by Electrical Engineering Division, Institution of Engineers, Bangladesh, January 26-28, 2006.

Sk. Abu Reza and N.M.Alam Chowdhury, “Interactive Learning Method”, Proc. 4^th International Conference on Electrical Engineering (ICEE) and 2^nd Annual Paper Meet, pp. 162-165, Organized by Electrical Engineering Division, Institution of Engineers, Bangladesh, January 26-28, 2006.

Mohammed Shahed Akond, N. M. Alam Chowdhury, "Fast Solution of Combined Field Integral Equastion by Sparse Matrix Technique", Proc. 15th Conference on the Computation of Electromagnetic Fields (Compumag '2005), pp. 418-419, Shenyang, Liaoning, China, June 2005.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "Implementation of Matrix Localization Technique for the Efficient Computation of MEI Coefficient ", ICECE 2002 Conf. Digest, pp. 368-371, BUET, Bangladesh, Dec. 2002.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "Applicability of Insensitive Properties of MEI Coefficients : Scalar-field Approach", ISAP-i02, pp. 189-192, YRP, Japan, Nov. 2002.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "Applicability of Insensitivity Properties of MEI Coefficients for the Computation of Scattering from Modified Structured Bodies", IEICE National Conference, vol. A-11-6, pp. 156, Miyazaki, Japan, Sept. 2002.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "IE-MEI Method Implemented to the 3D Arbitrary Shaped Scattering Problem : Scalar-field Approach", Dig. IEEE AP-S Int. Symp., vol. 1, pp. 152-155, Texas, USA, June 2002.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "SIE-MEI Method Implemented to the 3D Acoustic Problem, Part II : Scattering from Cube", 2002 IEICE General Conference, vol. A-11-2, pp. 252, Tokyo, March 2002.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "SIE-MEI Method to Solve the Arbitrary Shaped 3D Scattering Problem", ISCIT 2001, FAD1-02, pp. 646-649, Chiang Mai, Thailand, Nov. 2001.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "Implementation of IE-MEI Method to the Scalar-field Problem", AP-RASC ’01, vol. B9-2-03, pp. 93, Tokyo, Aug. 2001.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "Scalar-field Approach of IE-MEI Method to the Three-dimensional Acoustic Problem", 2001 IEICE Engineering Sciences Society Conference, vol. A-11-1, pp. 169, Choufu, Japan, Sept. 2001.

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "An Extension of IE-MEI Method for 3D Acoustic Scattering", Tech. on Instrumentation and Measurements, IEE Japan, vol. IM-01-21, pp. 21-26, June 2001.

P.K.Saha, N.M.Alam Chowdhury, "Development of Fractional Loop Antenna for EMC Measurement", Proc. 14th International WROCLAW Symposium on Electromagnetic Compatibility (EMC ’98), pp. 233-237, Wroclaw, Poland, June 1998.

P.K.Saha, N.M.Alam Chowdhury and Z.Alam, "Hexad Loop (H-Loop) Antenna in front of a 60 degree Corner Reflector for EMC Measurement", Proc. Fifth International Conference on Electromagnetic Interference and Compatibility (INCEMIC’97), pp. 65-70, Hyderabad, India, Dec. 1997.

N.M.Alam Chowdhury, "Necessity of EMC Practice in Bangladesh", Tech. Papers, 41st Convention, Institute of Engineers, Bangladesh (IEB), EE 41-2-03, pp. 46, Dec. 1996.

Invited Paper : Tribute to K.K. Mei, Joint AP-S/URSI Session, IEEE AP-S

N. M. Alam Chowdhury, J.Takada, and M. Hirose, "3D Scalar-formulation of IE-MEI Method for Acoustic Scattering ", to be presented as an invited paper in the Joint AP-S/URSI Special Session : Tribute to K. K. Mei, at IEEE AP-S Int. Symp., Monterey, CA, USA, June 2004.

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