نتایج جستجو برای: discrete ordinance radiation model
تعداد نتایج: 2423480 فیلتر نتایج به سال:
The goal of this study is to introduce a statistical method regarding the analysis of specific latent data for regression analysis of the discrete data and to build a relation between a probit regression model (related to the discrete response) and normal linear regression model (related to the latent data of continuous response). This method provides precise inferences on binary and multinomia...
In 2005, Germany introduced a new Amateur Radio Ordinance prohibiting encrypted radio traffic at home. Crypto-bans can be circumvented using steganography. However, present steganographic methods are not eligible because the embedded message will not survive the usual distortions in a radio transmission. Robust as current watermarking methods are, they leave clearly detectable traces and have a...
Simulative Comparison of Radiation Model Parameterizations for Direct Current Arcs in a Busbar Setup
The influence of different methods for calculating mean absorption coefficients on the arc voltage and velocity an moving in air along parallel busbars is investigated a numerical simulation. radiation model used discrete ordinate method. Planck, hybrid Rosseland calculations three- six-band selection are discussed. Compared with experimental results from published paper, Planck six bands shows...
We introduce a many-body theory for thermal far-field emission of dipolar dielectric and metallic nanoparticles in the vicinity substrate within framework fluctuational electrodynamics. Our theoretical model includes possibility to define temperatures each nanoparticle, temperature, temperature background radiation, separately. To demonstrate versatility our method, we apply it an exemplary way...
The effects of natural convection with and without the interaction of surface radiation in square and rectangular enclosures have been studied, numerically and theoretically. The analyses were carried out over a wide range of enclosure aspect ratios ranging from 0.0625 to 16, including square enclosures in sizes from 40cm to 240cm, with cold wall temperatures ranging from 283 to 373 K, and hot ...
Vacant and abandoned buildings pose significant challenges to the health and safety of communities. In 2011 the City of Philadelphia began enforcing a Doors and Windows Ordinance that required property owners of abandoned buildings to install working doors and windows in all structural openings or face significant fines. We tested the effects of the new ordinance on the occurrence of crime surr...
The Scaling Law for the Discrete Kinetic Growth Percolation Model The critical exponent of the total number of finite clusters α is calculated directly without using scaling hypothesis both below and above the percolation threshold pc based on a kinetic growth percolation model in two and three dimensions. Simultaneously, we can calculate other critical exponents β and γ, and show that the scal...
The effect of radiation on laminar and turbulent mixed convection heat transfer of a semitransparent medium in a square enclosure was studied numerically using the Finite Volume Method. A structured mesh and the SIMPLE algorithm were utilized to model the governing equations. Turbulence and radiation were modeled with the RNG k-ε model and Discrete Ordinates (DO) model, respectively. For Richar...
While poverty and violence are not limited to one geographic region of the United States, unique demographic and geographic factors pose distinct problems in specific areas. In Escondido, CA, the city council linked poverty and crime to illegal immigration and proposed an ordinance forbidding landlords to rent to illegal immigrants. This article explores that case and examines implications for ...
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