نتایج جستجو برای: cng

تعداد نتایج: 1035  

 استفاده از گاز طبیعی فشرده به عنوان سوختی پاک در سراسر دنیا در حال افزایش است. با رشد روزافزون وسایل نقلیه در ایران و به دلیل بالابودن هزینه­های احداث جایگاه­های CNG، مکان­یابی مناسب و بهینه این جایگاه­ها از اهمیت ویژه‌ای برخوردار است. مدل مکان­یابی جریان سوخت­گیری یکی از مدل­هایی است که اخیراً به منظور مکان­یابی جایگاه­های سوخت مطرح­ شده است. در این تحقیق جایگاه­های سوخت CNG در دو مسیر برون­شه...

Journal: :E3S web of conferences 2021

Compressed biomethane gas (CBG) is an interesting alternative fuel that can be used to solve fossil crisis problems. Nevertheless, it concerned about engine performance and exhaust emission. In additions, CBG produced from agricultural harvesting residues the food industry a good opportunity for utilizing biogas as vehicle fuel. The aims of this research are comparative analysis emission on com...

Journal: :Neuron 1996
Lisa J Brunet Geoffrey H Gold John Ngai

Olfactory neurons transduce the binding of odorants into membrane depolarization. Two intracellular messengers, cyclic AMP (cAMP) and inositol trisphosphate (IP3), are thought to mediate this process, with cAMP generating responses to some odorants and IP3 mediating responses to others. cAMP causes membrane depolarization by activating a cation-selective cyclic nucleotide-gated (CNG) channel. W...

2004

This document describes a machine-learning solution to the spam-filtering problem. Spam-filtering is treated as a text-classification problem in very high dimension space. Two new text-classification algorithms, Latent Semantic Indexing (LSI) and Contextual Network Graphs (CNG) are compared to existing Bayesian techniques by monitoring their ability to process and correctly classify a series of...

2012
F. BARGHI A. A. SAFAVI

Abstract– This paper proposes an intelligent control technique for fuel injection control of Compressed Natural Gas (CNG) engines. Recurrent Neuro-Fuzzy Networks are used to estimate and control air to fuel ratio (AFR) of CNG engines. To reasonably handle such a complicated control problem, a precise experimental test has been done on a real CNG fuelled vehicle and the process input output data...

Journal: :The Journal of General Physiology 2000
Jennifer I. Crary Dylan M. Dean Wang Nguitragool Peri T. Kurshan Anita L. Zimmerman

Cyclic nucleotide-gated (CNG) channels are critical components in the visual and olfactory signal transduction pathways, and they primarily gate in response to changes in the cytoplasmic concentration of cyclic nucleotides. We previously found that the ability of the native rod CNG channel to be opened by cGMP was markedly inhibited by analogues of diacylglycerol (DAG) without a phosphorylation...

Journal: :Neuron 2008
Yijun Song Katherine D. Cygnar Botir Sagdullaev Matthew Valley Sarah Hirsh Aaron Stephan Johannes Reisert Haiqing Zhao

Ca2+/calmodulin-mediated negative feedback is a prototypical regulatory mechanism for Ca2+-permeable ion channels. In olfactory sensory neurons (OSNs), such regulation on the cyclic nucleotide-gated (CNG) channel is considered a major mechanism of OSN adaptation. To determine the role of Ca2+/calmodulin desensitization of the olfactory CNG channel, we introduced a mutation in the channel subuni...

Journal: :Neuron 2001
Galen E Flynn William N Zagotta

In cyclic nucleotide-gated channels (CNG), direct binding of cyclic nucleotides in the carboxy-terminal region is allosterically coupled to opening of the pore. A CNG1 channel pore was probed using site-directed cysteine substitution to elucidate conformational changes associated with channel opening. The effects of cysteine modification on permeation suggest a structural homology between CNG a...

2015
Yosef Shirazi Edward Carr Lauren Knapp

Motivated by climate, health and economic considerations, alternatively-fueled bus fleets have emerged worldwide. Two popular alternatives are compressed natural gas (CNG) and electric vehicles. The latter provides the opportunity to generate revenue through vehicle-to-grid (V2G) services if properly equipped. This analysis conducts a robust accounting of the costs of diesel, CNG and battery-el...

2012
Lars Rose Mohammed Hussain Syed Ahmed Kourosh Malek Robert Costanzo Erik Kjeang

Consumers and organizations worldwide are searching for low-carbon alternatives to conventional gasoline and diesel vehicles to reduce greenhouse gas (GHG) emissions and their impact on the environment. A comprehensive technique used to estimate overall cost and environmental impact of vehicles is known as life cycle assessment (LCA). In this article, a comparative LCA of diesel and compressed ...

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