نتایج جستجو برای: microwave power

تعداد نتایج: 530924  

2005
Arthur Kosowsky Milos Milosavljevic Raul Jimenez

We revisit the issue of cosmological parameter estimation in light of current and upcoming highprecision measurements of the cosmic microwave background power spectrum. Physical quantities which determine the power spectrum are reviewed, and their connection to familiar cosmological parameters is explicated. We present a set of physical parameters, analytic functions of the usual cosmological p...

2011
Oleksandr Prokopenko Gennadiy Melkov Elena Bankowski Thomas Meitzler Vasil Tiberkevich Andrei Slavin Taras Shevchenko

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...

2005
CARTER D. CLARY SHAOJIN WANG

Microwave vacuum drying has been investigated as promising potential for high-quality dried fruits. In this study, a batch microwave vacuum dryer was used to understand the effect of levels of microwave power on the drying characteristics and moisture content of grapes. Thompson seedless grapes were treated 1st for 30, 60, and 90 min at fixed levels of 500, 750, 1000, 1250, and 1500 W at a redu...

2011
Lakshmappa Ragha Seema Mishra V. Ramachandran Manmohan Singh Bhatia

Experiments were conducted to investigate the effects of low power microwave radiation on germination and growth rate in seeds. In the present paper, the bioeffects of low power (non-thermal intensity) microwave modulated with 1 KHz square wave have been studied. Experiments were performed in X-band frequencies using klystron based microwave test bench. Microwave parameters like frequency, powe...

2011

In the study of thin film preparation using a low cost microwave induced plasma method, we have carried out calorimetric power analysis in a microwave oven with different loads. The calorimetric calibration was done with various heating loads like coconut oil, engine oil, fruit juice and water. The power consumption of water was higher when compared to other loads. The results show the comparis...

2011
K. Oh A. H. Sklavounos D. J. Marchiarullo N. S. Barker

Utilizing ~1 W of microwave power, we achieved heating of PCR buffer with unprecedented temperature ramp rates that allowed for rapid thermocycling. Polymeric microdevices, chosen for their low cost and ease of fabrication, were constructed from polycarbonate (PC), poly(methyl-methacrylate) (PMMA), and polyester-toner (PeT) using fast, simple microfabrication via computer-aided milling for PC a...

2017
Gabrielle L. McLemore Salih Toker Zainab Boone-Kukoyi Hillary Ajifa Carisse Lansiquot Chinenye Nwawulu Stanley Onyedum Bridgit M. Kioko Kadir Aslan

Gout is a disease with elusive treatment options. Reduction of the size of l-alanine crystals as a model crystal for gouty tophi with the use of a monomode solid-state microwave was examined as a possible therapeutic aid. The effect of microwave heating on l-alanine crystals in the presence of gold nanoparticles (Au NPs) in solution and synovial fluid (SF) in a plastic pouch through a synthetic...

2017
Mamdouh Omran Timo Fabritius Eetu-Pekka Heikkinen Guo Chen

This paper aims to study the dielectric properties and carbothermic reduction of zinc oxide (zincite, ZnO) and zinc ferrite (franklinite, ZnFe2O4) by microwave heating. To achieve this aim, the dielectric properties were measured with an open-ended coaxial method to understand the behaviour of the samples under microwave irradiation. The effects of microwave power, duration time and sample mass...

2016
Zhenxiang Yi Xiaoping Liao

In this paper, a novel 3D model is proposed to describe the temperature distribution of the thermoelectric microwave power sensor. In this 3D model, the heat flux density decreases from the upper surface to the lower surface of the GaAs substrate while it was supposed to be a constant in the 2D model. The power sensor is fabricated by a GaAs monolithic microwave integrated circuit (MMIC) proces...

2013
Wenbin Zhou Mengdi Liang Hong Pan Xiaoan Liu Yanni Jiang Yufeng Wang Lijun Ling Qiang Ding Shui Wang

BACKGROUND For complete tumor ablation in different tissues, it is necessary to investigate the exact coagulation zone of microwave ablation in different tissues. The aim of this study was to compare the extent of microwave ablation zone in muscle, liver and adipose tissue in ex vivo porcine models and assess the shape of microwave coagulation zone among these tissues. MATERIALS AND METHODS M...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید