نتایج جستجو برای: effective protection coefficient
تعداد نتایج: 1001272 فیلتر نتایج به سال:
In a recent paper entitled “High temperature expansion applied to fermions near Feshbach resonance”, (Phys. Rev. Lett. 92 160404 (2004)), Ho and Mueller have demonstrated a remarkable similarity between its high and low temerature properties at resonance. The quantum second virial coefficient plays a crucial role in their analysis, and has a universal value at resonance. In this paper, we explo...
1 Introduction In this paper we discuss the range of the applicability of our recent approach [1] for the effective diffusion coefficient (mobility) in two-phase systems, e.g. composite materials, porous media, polymer blends, matrices with inclusions. We derived the equation for D eff as a function of the partial diffusion coefficients of a defect (or probe particle) in inclusions, D 1 , with ...
This paper puts forward a framework for probabilistic and holistic cost-effectiveness analysis to provide support in selecting the least-cost set of measures to reach a multidimensional environmental objective. Following the principles of ecosystem-based management, the framework includes a flexible methodology for deriving and populating criteria for effectiveness and costs and analyzing compl...
Commercial and government organizations are deploying database management system (DBMS) technology as the backbone for their electronic commerce and Internet-based computing applications. As one would expect, these organizations require high performance, scaleable, fault-tolerant systems that can efficiently and securely process transactions from thousands of concurrent, distributed clients. As...
This paper presents the systematic synthesis of multiplier-less FIR filters with a novel complexity-aware quantization algorithm. Both signed-digit representations and common subexpression elimination (CSE) are investigated to reduce the computational complexity at the bit level. For comparable filter responses, the simulation shows that our approach requires only half (49.06%~ 50.94%) addition...
It has been recognized that matrix diffusion is an important process for retarding solute transport in fractured rock. Based on analyses of tracer transport data from a number of field tests, we demonstrate that the effective matrix-diffusion coefficient may be scaledependent and generally increases with test scale. A preliminary theoretical explanation of this scale dependency is also presente...
Introduction: Family planning programs in Islamic Republic of Iran are faced with limited resources. So evaluation of family planning programs, in order to determine how much we have reached our targets, is extremely important. The easiest way to evaluate the results of these activities is using the couple-year of protection method. Methods: This descriptive study was conducted to determine th...
in this paper for calculating policy analysis matrix parameters, with regard to real or shadow prices, we pay attention to variation of endogenous variables, using results of cge model. the results of the study indicated that,in output market, because of government policies, there are implicit tax on products of iran;s auto industry. but inputs of auto industry, benefits from government subsid...
background: personal protection equipments (ppes) should be easily accessible to decrease contact with infecting factors and also should be used purposefully to effectively keep the health care personnel in a safe distance from the patient blood and body fluid which can easily infect the operating rooms personnel. this study aimed to find the operating rooms' personnel compliance with standards...
Introduction Due to the increasing use of angiography procedures and the higher risk of deterministic and stochastic effects for radiation workers of these sections than other radiological procedures, radiation safety is very important in angiography staff. So, this study aimed to obtain the effective dose of angiography staff and compare them with the standard dose limit and finally outline th...
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