نتایج جستجو برای: threshold limit values

تعداد نتایج: 781966  

Journal: :Journal of the London Mathematical Society 2023

We find a formula, in terms of n , d $n, d$ and p $p$ for the value F $F$ -pure threshold generic homogeneous polynomial degree $d$ $n$ variables over an algebraically closed field characteristic . also show that every all ⩾ 4 $d\geqslant 4$ not divisible by there always exist reduced polynomials k [ x y ] $k[x, y]$ whose is truncation base expansion 2 $\frac{2}{d}$ at some place; particular, f...

Introduction Blue light is a part of the spectrum with the highest energy content, which can reach the retina. The damage that it can cause to the retina is called photochemical or blue-light retinal injury. For the retinal injury assessment of the photochemical and aphakic retinal hazards in the wavelength range of 300-700 nm, use of effective spectral radiance limits (W.m-2.sr-1) seems to be ...

2013
Igor Burstyn

The aim of this paper is to review available data on chemistry of aerosols and liquids of electronic cigarettes and to make predictions about compliance with occupational exposure limits of personal exposures of vapers (e-cigarette users) to compounds found in the aerosol. Both peer-reviewed and “grey” literatures were accessed and more than 9000 observations of highly variable quality were ext...

Journal: :iranian journal of radiation research 0
m. atarod department of medical physics, isfahan university of medical sciences, isfahan, iran p. shokrani department of medical physics, isfahan university of medical sciences, isfahan, iran a. pourmoghadas carleton university, ottawa, canada

background: in most cancer cases, the treatment choice for a pregnant patient is radiotherapy. in these patients, the abdomen is usually not exposed therefore fetus exposure is due to peripheral dose (pd). the purpose of this study was to estimate the fetal dose (the maximum pd in each pregnancy stage) for modalities available and to fabricate and evaluate a generally applicable fetal shield. m...

2012
Mbuyu Sumbwanyambe

Developing countries have embarked on the promotion of “ICT access for all” through subsidized Information and Communication Technologies (ICTs), especially in underserviced areas of such countries. The main aim of the “ICT access for all” is to extend the communication services to the large areas of underserviced regions through subsidized communication services. In some instances, subsidies m...

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