نتایج جستجو برای: air channels

تعداد نتایج: 343206  

Journal: :physical chemistry and electrochemistry 0

propene dissociation channels were characterized by ab initio ccsd(t)/6-311++g(d,p) calculations. inthis work the detailed mechanism of propene dissociation to c2h4+ch2, c2h2+h+ch3, c2h2+ch4 andc3h3+h2+h have been investigated. according to our calculations, ten fragments can be classified intofive dissociated channels. our results point out that two mechanisms come into play in the h2 eliminat...

Journal: :IEEE Transactions on Wireless Communications 2022

Federated learning (FL) is an attractive paradigm for making use of rich distributed data while protecting privacy. Nonetheless, nonideal communication links and limited transmission resources may hinder the implementation fast accurate FL. In this paper, we study joint optimization communications FL based on analog aggregation in realistic wireless networks. We first derive closed-form express...

2004
Carlo Gualtieri Hubert Chanson

Dropshafts are commonly used in sewers and stormwater channels as energy dissipator systems. Since recent effort has been devoted to characterize dropshaft hydraulics and air-water flow properties, and the present paper develops an analysis of the bubble clustering process using new experimental data collected in a large-size facility. The results highlight some significant patterns in clusters...

Journal: :Optics letters 2003
E Altewischer M P van Exter J P Woerdman

We present measurements of the wavelength-dependent reflectivity of a subwavelength metal hole array on a glass substrate. We compare the observed resonant structures with those found in transmission and note a nonreciprocity under illumination from the air versus the glass side. This can be used to verify on which interface the surface plasmons are resonantly excited and to estimate the losses...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

Journal: :Reactions 2021

The paper compares conceptual designs of a microstructured reactor/heat-exchanger for the small-scale production C8+ range hydrocarbons from methanol over H-ZSM-5 catalytic coatings. In these designs, air was used as cooling fluid in adjacent channels. heat transfer characteristics single-zone reactor (with channels 500 μm diameter) and two-zone an additional coolant inlet) have been compared. ...

2018
Kenta Yamamoto Miyuki Hirose Taiichi Saito

Air-gapped Network is a network isolated from public networks. Several techniques of data exfiltration from airgapped networks have been recently proposed. Air-gap malware is a malware that breaks the isolation of an air-gapped computer using air-gap covert channels, which extract information from air-gapped computers running on air-gap networks. Guri et al. presented an air-gap malware “GSMem”...

Journal: :Applied sciences 2021

This paper aims to numerically investigate the thermal enhancement of a latent energy storage component with mini-channels as air passages. The investigated channels in two sizes internal passages (channel-1 dh = 1.6 mm and channel-2 2.3 mm) are oriented vertically cuboid 0.15 × 0.1 m3 RT22 PCM located shell. phase change is simulated fixed inlet temperature air, using ANSYS Fluent 19.5, varyin...

2007
I. M. Lensky

A methodology for representing much of the physical information content of the METEOSAT Second Generation (MSG) geostationary satellite using red-greenblue (RGB) composites of the computed physical values of the picture elements is presented. The physical values are the solar reflectance in the solar channels and brightness temperature in the thermal channels. The main RGB compositions are (1) ...

Journal: :Comput. J. 1997
Hong Va Leong Antonio Si

Previous research on broadcast databases in a mobile computing environment utilizing wireless channels has been focused on mechanisms for a mobile client to selectively pick database items in which the client is interested from a broadcast channel. The fundamental issue of identifying the appropriate database items for broadcast or refrained from being broadcast have largely been ignored. In th...

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