نتایج جستجو برای: microwave radiation
تعداد نتایج: 269070 فیلتر نتایج به سال:
We extend the formalism of the relativistic thermal and kinematic Sunyaev-Zel’dovich effects and include the polarization of the cosmic microwave background photons. We consider the situation that a cluster of galaxies is moving with a velocity ~ β ≡ ~v/c with respect to the cosmic microwave background radiation. In the present formalism, polarization of the scattered cosmic microwave backgroun...
We demonstrate the use of microwave radiation as a tool to accelerate the formation of perfluoroalkylsilane based self-assembled monolayers (SAMs) on silicon oxide surfaces. Surface coverage of these SAMs of monoreactive perfluoroalkylsilanes increased in proportion to the duration over which the solutions were heated by microwave radiation.
A problem of lighting objects and surfaces with artificial sources of noncoherent microwave radiation with the aim to observe them using radiometric equipment is considered. Transmitters based on dynamic chaos generators are used as sources of noncoherent wideband microwave radiation. An experimental sample of such a device, i.e., a radio lighting lamp based on a chaos microgenerator and its pe...
The objective of this paper is threefold: 1) To present a working methodology for the combined use of modeling technology and microwave remote sensing measurements in the assessment of attenuation of electromagnetic waves by the vegetation cover; 2) To illustrate this methodology with computer calculations of the attenuation for various soil-plant formations; 3) To give a perspective of the dev...
In this work, we have studied the observational constraints on the Cardassian Model for the dark energy. We have compared the model with existing Supernova data. The dependence of the location of the Cosmic Microwave Background Radiation (CMBR) peaks on the parameters of the model have also been studied. We find, in particular that observational data arising from Archeops for the location of th...
An epoch of accelerated expansion, or inflation, in the early universe solves several cosmological problems. While there are many models of inflation only recently has it become possible to discriminate between some of the models using observations of the cosmic microwave background radiation and large-scale structure. In this talk, we discuss inflation and its observational consequences, and t...
I review the discovery of the temperature fluctuations in the cosmic microwave background radiation. The underlying theory and the implications for cosmology are reviewed, and I describe the prospects for future progress.
Microwave radiation, an electromagnetic radiation, is widely use as a source of heating in organic synthesis. The basic mechanisms observed in microwave assisted synthesis are dipolar polarization and conduction. Microwave assisted organic synthesis (MAOS) has emerged as a new “lead” in organic synthesis. The technique offers simple, clean, fast, efficient, and economic for the synthesis of a l...
BEST UNBIASED ESTIMATORS FOR THE THREE-POINT CORRELATORS OF THE COSMIC MICROWAVE BACKGROUND RADIATION Alejandro Gangui and Jérôme Martin Instituto de Astronomı́a y F́ısica del Espacio, Ciudad Universitaria, 1428 Buenos Aires, Argentina Dept. de F́ısica, Universidad de Buenos Aires, Ciudad Universitaria – Pab. 1, 1428 Buenos Aires, Argentina DARC, Observatoire de Paris–Meudon, UMR 8629 CNRS, 92195 ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید