نتایج جستجو برای: wall microwave imaging

تعداد نتایج: 661781  

2004
J. G. P. Binner D. M. Price B. Vaidhyanathan

A hybrid calorimeter is described whereby the test specimen may be heated using either hot air and/or microwave radiation. Thus it is possible to study phase transitions of materials under conditions ranging from purely conventional heating to pure microwave heating or mixtures thereof. Measurements using silver iodide showed that its phase change from the low temperature β-phase to the high te...

Journal: :Electronics and Electrical Engineering 2012

Journal: :New Journal of Physics 2022

Abstract Recently, we introduced a resonant microwave cavity as diagnostic tool for the study of ultracold plasmas (UCPs). This allows us to electron dynamics UCPs non-destructively, very fast, and with high sensitivity by measuring shift in resonance frequency cavity, induced plasma. However, an attempt theoretically predict using Gaussian self-similar expansion model, three times faster plasm...

2013
N. Seladji - Hassaine L. Merad S. M. Meriah F. T. Bendimerad

UWB is a very attractive technology for many applications. It provides many advantages such as fine resolution and high power efficiency. Our interest in the current study is the use of UWB radar technique in microwave medical imaging systems, especially for early breast cancer detection. The Federal Communications Commission FCC allowed frequency bandwidth of 3.1 to 10.6 GHz for this purpose. ...

2010
Albin J. Gasiewski

The focus of this research is to develop algorithms and aircraft and satellite remote sensing systems for imaging of ocean surface winds using passive microwave radiometers. The application of passive radiometry to ocean surface imaging, specifically using polarimetric microwave measurements of the third and fourth Stokes' parameters, has been identified as a potentially useful and low-cost mea...

2012
Ji Wu Hao Liu Jingye Yan Cheng Zhang Weiying Sun

Since 1957, when the first man made satellite opened the space age of human history, satellite earth observation has been taking advantage of high altitude to look at the globe and have applications in the areas of weather forecasting, oceanography, land survey and resource discovery, environmental and disaster monitoring, as well as applications in the area of defence. The observational freque...

2011
S. Bonafoni F. Alimenti G. Angelucci G. Tasselli G. Duranti

This paper deals with passive microwave imaging for fire detection by means of a single-channel ground-based radiometer. The simulation of images sensed in the presence of fire spots under different environmental and operative conditions will be presented. We will refer to a low-cost ground-based radiometer operating at 12.65GHz. Scenarios where fires are un-visible and IR sensors are not usefu...

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