نتایج جستجو برای: optimal exposure density oed
تعداد نتایج: 1058895 فیلتر نتایج به سال:
Abstract We consider the problem of dynamic optimal transport with a density constraint. derive variational limits in terms $$\Gamma $$ Γ -convergence for two singular phenomena. First, densities constrained near hyperplane we recover flow through an infinitesimal permeable membrane. Second, rapidly oscillati...
Background and Aims Bone density is frequently used in medical diagnosis and research. The current methods for determining bone density are expensive and not easily available in dental clinics. The aim of this study was to design and evaluate the accuracy of a digital method for hard tissue densitometry which could be applied on personal computers. Materials and Methods: An aluminum step we...
We present an efficient method for computing A-optimal experimental designs for infinite-dimensional Bayesian linear inverse problems governed by partial differential equations (PDEs). Specifically, we address the problem of optimizing the location of sensors (at which observational data are collected) to minimize the uncertainty in the parameters estimated by solving the inverse problem, where...
Background and purpose: Considerable increase on the use of electronic devices increased the rate of public occupational exposure to extremely low frequency electromagnetic fields. Assessment of exposure to these fields is highly important due to potential health hazards. This study aimed at investigating the magnetic flux emission from extremely low frequency electromagnetic fields around powe...
Background and objectives: In recent decades, progress of telecommunication industry resulted in public availability to cost-effective cellular mobile hence, boom of base stations of cellular mobile in response to vast public demands. Base stations of cellular mobile are specific source of microwave production in a certain frequency in environment. Antennas are installed on high towers to creat...
Background and aims: Extremely low frequency magnetic field (ELF) is part of Spectrum of electromagnetic waves with range 30 to 300 Hz. The average magnetic field exposures in the workplace have been found to be higher in “electrical occupations” than in other occupations such as office work. The interaction between magnetic fields produced by power lines and substations with living organisms a...
background: flow cytometry (fcm) has been extensively used to study mammalian sperm in the areas of clinical andrology and reproductive toxicology. fcm provides a powerful advantage over microscopy technique in terms of rapid accurate and reproducible technology for the quantification of various cell characteristics including chromatin status. during spermiogenesis histones are replaced by prot...
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