Zobrazeno 1 - 10
of 100
pro vyhledávání: '"N. Gopalsami"'
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 44:1610-1613
A precise, broadband, Fabry-Perot wavemeter has been designed and built to measure wavelengths in the millimeter and submillimeter range. The design of the wavemeter is novel in that it enhances the fundamental mode over a wide band and permits deter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70d7de5194f8d84e2552b61982cbc3a7
https://doi.org/10.1109/22.536616
https://doi.org/10.1109/22.536616
Publikováno v:
Powder Metallurgy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b32d46f61660ccf10547229c6bf1f0b
https://doi.org/10.1179/1743290111y.0000000001
https://doi.org/10.1179/1743290111y.0000000001
This report summarizes the first year research and development effort leading to development of high-temperature sensors for enhanced geothermal systems. It covers evaluation of ultrasonic and electromagnetic (EM) techniques applied to temperature me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d287ae4d0498870f75c29f7bf94f10f7
https://doi.org/10.2172/993701
https://doi.org/10.2172/993701
Publikováno v:
AIP Conference Proceedings.
The ability to control and concentrate electromagnetic (EM) energy in length scales much smaller than the excitation wavelength opens up new opportunities for sensing and NDE. Ordinarily EM wave transmission through such structures becomes infinitesi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2549124f281fa36ef7ab32ab6e20644
https://doi.org/10.1063/1.3362443
https://doi.org/10.1063/1.3362443
Autor:
N. Gopalsami, H.-T. Chien, T. Elmer, S. Bakhtiari, A. C. Raptis, Donald O. Thompson, Dale E. Chimenti
Publikováno v:
AIP Conference Proceedings.
This paper investigates the use of surface plasmonic effect in slit resonators for sensing and imaging in the terahertz regime. The transmittance of electromagnetic (EM) waves through a narrow aperture becomes negligible when the aperture size become
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f75e60193428754581e1d6296f8af77
https://doi.org/10.1063/1.3114276
https://doi.org/10.1063/1.3114276
Publikováno v:
AIP Conference Proceedings.
A millimeter wavelength (MMW) measurement system for remote detection of object characteristics and methods for detecting such characteristics. The MMW measurement system comprises a front-end and an optional signal conditioning component. The MMW fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97b0c9435fd8c06d04b39c5fbc861c2b
https://doi.org/10.1063/1.3114155
https://doi.org/10.1063/1.3114155
Autor:
N. Gopalsami, I. Osorio, V. Baranov, Tatiana Lyubynskaya, Gennady G. Kochemasov, V. Eroshenko
Publikováno v:
11th Mediterranean Conference on Medical and Biomedical Engineering and Computing 2007 ISBN: 9783540730439
A method of thermal suppression of abnormal brain activity observed in epileptic patients during preictal stage was considered for seizure blockage. The development of an implantable brain microcooler as a part of a closed-loop epileptic seizure prev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85785c4a3b67ab1c039cafba71024883
https://doi.org/10.1007/978-3-540-73044-6_236
https://doi.org/10.1007/978-3-540-73044-6_236
Publikováno v:
AIP Conference Proceedings.
We are developing a microwave radar sensing and imaging system to detect and locate gas leaks in natural gas pipelines. The underlying detection principle is radar backscattering from the index‐of‐refraction inhomogeneities introduced by the disp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d340a30ec1c80a8b4a2725cf7429e73
https://doi.org/10.1063/1.1570174
https://doi.org/10.1063/1.1570174
Autor:
K. Gopalan, N. Gopalsami
Publikováno v:
Proceedings of 36th Midwest Symposium on Circuits and Systems.
Infrared images resulting from back-scattered thermal waves in composite materials are corrupted by instrument noise and sample heat-spread function. This paper demonstrates that homomorphic deconvolution and "demultiplication" result in enhanced ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfd8b972bdc4318c2e52d83ffdfe1d3c
https://doi.org/10.1109/mwscas.1993.343380
https://doi.org/10.1109/mwscas.1993.343380
Autor:
N. Gopalsami, K. Gopalan
Publikováno v:
Quality Measurement: The Indispensable Bridge between Theory and Reality (No Measurements? No Science! Joint Conference - 1996: IEEE Instrumentation and Measurement Technology Conference and IMEKO Technical Committee 7. Conference Proceedings.
The sharp and distinct absorption spectra of chemicals at low pressures in the millimeter wave range of frequencies become broadened at high pressures. As a result, detecting and quantifying different chemicals at high pressures from the broadened an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5265a276da9b091bc90cd853b6cbcfe6
https://doi.org/10.1109/imtc.1996.507557
https://doi.org/10.1109/imtc.1996.507557