1. ABSTRACT The multi-layer dense media radiative transfer (DMRT) theory based on the quasicrystalline approximation (QCA) has been applied for studying both passive and active microwave remote sensing signatures [1], [2]. It is shown that the layered structure is essential to analyze the microwave emission from snow because high frequency is sensitive to the scattering from the medium top and ...

Part I and part II of the paper in the same series, Review Microwave Processing of Materials: Part I and Review Microwave Processing of Materials: Part II, described the fixed frequency microwave processing of materials and variable frequency processing of materials respectively. This paper, Review Microwave Processing of Materials: Part III, details the simulation of fixed and variable frequen...

In this study, snapshots of operating frequency profiles of domestic microwave ovens were collected to reveal the extent of microwave frequency variations under different operation conditions. A computer simulation model was developed based on the finite difference time domain method to analyze the influence of the shifting frequency on heating patterns of foods in a microwave oven. The results...

An EPR spectrometer is described working in the 94 GHz (W-band) frequency range. It comprises a Fabry-Perot type microwave resonator connected to a conventional microwave bridge, a phase lock loop for microwave frequency stabilization, and a superconducting magnet. The improved separation of W-band spectra from two sites with only slightly different ^-factors is demonstrated using an a-bromo ra...

Voltage to current converters or TRANSCONDUCTANCE amplifiers, find its applications in both traditional analog ICs e.g. amplifier and filters as well as current analog VLSI e.g. Field programmable analog arrays and various other neural networks. A complete review of different linear V-I converter has been done in this paper. Since the basic V-I convertor circuit uses common source differential ...

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The fundamentals of microwaves and fixed frequency microwave processing of materials, together with the successful applications of the technology in the United States of America (USA) and Australia, have been described in detail in the paper titled microwave processing of materials: part I. This paper, part II, describes and comments on the fundamentals of variable frequency microwave (VFM) fac...

Optical Q factor measurements are performed on a whispering gallery mode (WGM) disk resonator using a microwave frequency domain approach instead of using an optical domain approach. An absence of hysteretic behavior and a better linearity are obtained when performing linewidth measurements by using a microwave modulation for scanning the resonances instead of the piezoelectric-based frequency ...

We analyze performance of a resonance-type spin-torque microwave detector (STMD) in the presence of noise and reveal two distinct regimes of STMD operation. In the first (high-frequency) regime the minimum detectable microwave power Pmin is limited by the low-frequency JohnsonNyquist noise and the signal-to-noise ratio (SNR) of STMD is proportional to the input microwave power PRF. In the secon...

This paper presents an influence issue improved by victimisation buck-boost convertor for BLDC motor drive as a value effective answer for low power applications. AN approach of speed management of BLDC motor by dominant the DC link voltage of VSI (Voltage supply Inverter) is employed. This facilitates the operation of VSI at fundamental change by victimisation the electronic commutation of BLD...