نتایج جستجو برای: effective parameters
تعداد نتایج: 1219590 فیلتر نتایج به سال:
using low-cost feedstocks such as rendered animal fats in biodiesel production willreducebiodieselexpenditures. one of the low-cost feedstocksfor biodiesel production could be the fatextracted from poultry feathers producedin slaughterhouses abundantly. this paper describes a new andenvironmentally friendly process for developing biodiesel production technology from feather waste producedin pou...
using low-cost feedstocks such as rendered animal fats in biodiesel production willreducebiodieselexpenditures. one of the low-cost feedstocksfor biodiesel production could be the fatextracted from poultry feathers producedin slaughterhouses abundantly. this paper describes a new andenvironmentally friendly process for developing biodiesel production technology from feather waste producedin pou...
The environmental pollution crisis caused by the excessive use of fossil fuels and the risk of the destruction of natural resources and reserves, as well as the excessive production of greenhouse gases and, consequently, global warming, led many energy researchers to use renewable energy As a fossil fuel alternative. Solar chimneys are one of the types of renewable energies that have been taken...
A method for assessing and optimizing the feedback level in a transistor-grid oscillator is presented. Based on the approximate large-signal S-parameters of the transistor, an equivalent circuit model for the grid is synthesized for maximum oscillator power. The resulting circuit serves as a convenient benchmark for determining the level of feedback for a given grid. Experimental results are pr...
Abstract Background and objectives: Access to real information and data on the impact of watershed management projects and their technical and economic evaluation is possible through representative and paired catchments. Since management operations and topographic characteristics have a great impact on carbon retention in ecosystems, this study aimed to determine the amount of soil organic ca...
The authors contributed equally to this paper and are listed in increasing order of seniority. We are grateful to Hillary Higgins, Jason Moschella, and Melissa Toffanin for their research assistance, and to Kai Lamertz, Mike Lounsbury, Noam Wasserman and three anonymous reviewers for their valuable feedback on earlier versions of this work. We recognize the funding provided by the Entrepreneuri...
Focal vibration therapy can provide neurophysiological benefits. Unfortunately, standardized protocols are non-existent. Previous research presents a wide range of with effectiveness. This paper is part broader effort to identify effective, for focal therapy. In this study, the authors evaluated characteristics (frequency and peak-to-peak intensity) four commercially available devices: (1) Vibr...
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