نتایج جستجو برای: dispersion

تعداد نتایج: 61941  

Journal: :Social Science Research Network 2021

We describe new experimental productivity statistics, Dispersion Statistics on Productivity (DiSP), jointly developed and published by the Bureau of Labor (BLS) Census Bureau. measures are critical for understanding economic performance. Official BLS which available major sectors detailed industries, provide information sources aggregate growth. A large body research shows that within-industry ...

Journal: :The British journal of ophthalmology 1981
J S Speakman

A long-term study of primary pigmentary dispersion has shown that the condition is commoner in males than females and appears most frequently in the third decade. After 10 years there may be a significant reduction in the amount of pigment deposited on the cornea, and the condition of several patients receiving treatment for glaucoma has remained under control when treatment has been stopped.

Journal: :iranian journal of basic medical sciences 0
alireza homayouni department of pharmaceutics, school of pharmacy, mashhad university of medical sciences, mashhad, iran fatemeh sadeghi 1 department of pharmaceutics, school of pharmacy, mashhad university of medical sciences, mashhad, iran 2 targeted drug delivery research center, school of pharmacy, mashhad university of medical sciences, mashhad, iran ali nokhodchi chemistry and drug delivery group, medway school of pharmacy, university of kent, me4 4tb, kent, united kingdom jaleh varshosaz department of pharmaceutics, faculty of pharmacy and novel drug delivery system research center, isfahan university of medical sciences, isfahan, iran hadi afrasiabi garekani department of pharmaceutics, school of pharmacy, mashhad university of medical sciences, mashhad, iran,pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iran

objective(s):solid dispersion formulation is the most promising strategy to improve oral bioavailability of poorly water soluble drugs. the aim of this study was to compare the effect of polyvinylpyrrolidone k30 (pvp) and poloxamer-188 (plx) as carrier in solid dispersion formulations of celecoxib (clx). materials and methods: solid dispersions of clx:pvp or clx:plx were prepared at different r...

2014
Gurpreet Kaur Gurmeet Kaur

Fiber-optic communication systems are light wave systems that employ optical fibers for information transmission to increase several orders of magnitude the bit rate distance product. However the performance of optical fiber communication system is limited by fiber dispersion. Dispersion compensation is the most important and challenging aspect of the optical fiber communication to maintain a h...

Journal: :NeuroImage 2016
Maira Tariq Torben Schneider Daniel C. Alexander Claudia A. M. Wheeler-Kingshott Hui Zhang

This paper presents Bingham-NODDI, a clinically-feasible technique for estimating the anisotropic orientation dispersion of neurites. Direct quantification of neurite morphology on clinical scanners was recently realised by a diffusion MRI technique known as neurite orientation dispersion and density imaging (NODDI). However in its current form NODDI cannot estimate anisotropic orientation disp...

Journal: :تحقیقات جغرافیایی 0
اصغر ضرابی دانشگاه اصفهان اصغر ضرابی دانشگاه اصفهان میرنجف موسوی دانشگاه ارومیه میرنجف موسوی دانشگاه ارومیه

â  the purpose of this study is investigation of relationship between population dispersion and distribution of services in urban area of yazd city. descriptive-analytic methodology was used in this study according to physical devising housing and urbanization organization. yazd city is comprised of 11urban areas, with areas of 13415 (ha) and 447259 population spatial distribution of population...

Journal: :سلامت و محیط زیست 0
اصغر علیزاده داخل a. alizadehdakhel department of chemistry, islamic azad university, rasht branch guilan, iranکارشناس ارشد مهندسی شیمی-عضو هیئت علمی دانشگاه آزاد اسلامی-واحد رشت- گروه شیمی. آریامن قویدل a. ghavidel member of scientific board of environmental research institute of jahad daneshgahi, rasht, gilan, irکارشناس ارشد بهداشت محیط- عضو هیئت علمی پژوهشکده محیط زیست جهاد دانشگاهی محمد پناهنده m. panahandeh member of scientific board of environmental research institute of jahad daneshgahi, rasht, gilan, irکارشناس ارشد بهداشت محیط- عضو هیئت علمی پژوهشکده محیط زیست جهاد دانشگاهی.

backgrounds and objectives: the dispersion of particulate matter has been known as the most serious environmental pollution of cement plants. in the present work, dispersion of the particulate matter from stack of kerman cement plant was investigated using computational fluid dynamics (cfd) modeling.materials and methods: in order to study the dispersion of particulate matter from the stack, a ...

Journal: :روش های عددی در مهندسی (استقلال) 0
سعید فیض و سعید همتی s. feiz and s. hemati

one of the factors which limits the transmission capacity of the fiber optics communication channel is the material dispersion. exact analytical study of the material dispersion is often complex and involves calculating the derivatives of the refractive index of the core. these calculations are too cumbersome to do, especially for high-order derivatives. so material dispersion has only been stu...

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