Precision microwave radiometry requires accurate internal calibration sources. A microwave terminator is one such internal source, and, under the assumption of a high quality match, produces a noise power directly proportional to the physical temperature of the terminator. Precise measurement of this temperature is required in order to provide a quality calibration standard. It is desirable for...

Extremely dry conditions commonly occur in high-latitude regions during the winter months. Accurate measurements of the precipitable water vapor (PWV) during such dry conditions are needed to improve our understanding of the regional radiation energy budgets. The strength associated with the 183 GHz water vapor absorption line makes radiometry in this frequency regime promising for measuring lo...

We present a novel multi-step technique for imperceptible geometry and radiometry calibration of projectorcamera systems. Our approach can be used to display geometry and color corrected images on non-optimized surfaces at interactive rates while simultaneously performing a series of invisible structured light projections during runtime. It supports disjoint projector-camera configurations, fas...

Ground-based water vapour soundings by microwave radiometry and Raman lidar on Jungfraujoch (Swiss Alps) D. Gerber, I. Balin, D. Feist, N. Kämpfer, V. Simeonov, B. Calpini , and H. van den Bergh Institute of Applied Physics, University of Bern, Switzerland Laboratory of Air Pollution, Swiss Federal Institute of Technology – Lausanne (EPFL), Lausanne, Switzerland Now at: MétéoSuisse, Payerne Sta...

The binding of concanavalin A (Con A) to the cell surface of zoospores and cysts of Phytophthora palmivora was studied by radiometry (125I-Con A), ultraviolet microscopy (fluorescein-Con A) and electron microscopy peroxidase-diaminobenzidine technique). Zoospores were found to secrete during the early stages of encystment a Con A-binding material susceptible to trypsin digestion. This glycoprot...

The thermo physical parameters thermal effusivity (e) and thermal diffusivity (α) have been measured using Fourier transform infrared (FTIR) Photoacoustic spectroscopy (PAS) for two different purities of C60 fullerenes (99.5 % , 98.5%) samples in the powder form. The experimental results shows that the values of thermal diffusivity is less then that obtained for crystalline C60 fullerenes. The ...

An algorithm based on the Monte Carlo method is described that permits the precise calculation of radiant emission characteristics of nonisothermal blackbody cavities for use as standard sources in radiometry, photometry, and radiation thermometry. The algorithm is realized for convex axisymmetric specular-diffuse cavities formed by three conical surfaces. The numerical experiments provide esti...

Temperature variations in tissues inside the body have been measured using microwave radiometry for more than three decades in a variety of passive body monitoring applications. In this paper, we study a prototype system for passive intracranial monitoring using microwave radiometry. It comprises L-notch microstrip patch antennas in conjunction with a sensitive multiband microwave receiver for ...

FUNDAMENTALS Part I of our book lays the physical and conceptual foundations of hydrologic optics, the quantitative study of the interactions of light with the earth's oceans, estuaries, lakes, rivers and other water bodies. Radiative transfer theory is the physical and mathematical framework for hydrologic optics. Chapter 1 begins with a few comments upon the nature of light itself and upon th...