نتایج جستجو برای: ferrous and nonferrous industries

تعداد نتایج: 16831407  

Journal: :Journal of Chemical Education 1959

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...

Journal: :international journal of environmental research 2010
m. vargas-vargas m. meseguer-santamarã­a j. mondã©jar - jimã©nez j.a. mondã©jar - jimã©nez

environmental protection has become one of the main concerns in developed economies, which is why an increasing degree of commitment in the field is required from all public and private bodies. environmental protection in firms must cease to be a secondary, barely profitable objective, involving the performance of sporadic remedial actions, and become just one more element of their organization...

Journal: :international journal of agricultural management and development 2014
ahmad reza ommani

the main purpose of this study was to identify and analyze factors affecting development of entrepreneurship in complementary and processing industries of citrus products at khouzestan province, iran. the statistical population of this study consisted of all managers in processing and complementary industries of citrus products in khouzestan province (n=89). by census method all managers were s...

Journal: :JOURNAL OF THE JAPAN WELDING SOCIETY 2010

Journal: :JOURNAL OF THE JAPAN WELDING SOCIETY 2009

Journal: :Journal of Industrial & Engineering Chemistry 1922

Journal: :international journal of preventive medicine 0
elaheh honarkar shafie seyed ali keshavarz mohammad esmaiel kefayati fatemeh taheri parvin sarbakhsh mohammad reza vafa

background: ferrous sulfate is the most used supplement for treating anemia, but it can result in unfavorable side effects. nowadays, nanotechnology is used as a way to increase bioavailability and decrease the side effects of drugs and nutrients. this study investigates the effects of nanoparticles containing iron on blood and inflammatory markers in comparison to ferrous sulfate in anemic rat...

Journal: :Journal of welding and joining (Online) 2021

Owing to global trends, automation with the fourth industrial revolution, and environmentally friendly policies owing certified emission reduction, wire arc additive manufacturing (WAAM) is attracting attention in various fields. In addition, demands of non-ferrous metals such as aluminum magnesium alloys are from industries that require lightweight, large, complex metallic parts can be fabrica...

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