نتایج جستجو برای: Basic Metal Industry

تعداد نتایج: 647827  

2014
C. Baratto R. Kumar E. Comini G. Faglia G. Sberveglieri

The use of metal oxide single crystalline nanowires for chemical sensing of pollutant gases has been proposed as a reliable solution to ensure high sensor performance due to small size of the crystallites and good stability over long term operation at high temperature. To obtain enhanced sensing capabilities of ZnO nws, we prepared composite nanostructures based on p-type NiO and n-type ZnO NWs...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2009
A. Asenov Dave Reid Campbell Millar Scott Roy Gareth Roy Richard O. Sinnott Gordon Stewart Graeme Robert Stewart

The progressive scaling of complementary metal oxide semiconductor (CMOS) transistors drives the success of the global semiconductor industry. Detailed knowledge of transistor behaviour is necessary to overcome the many fundamental challenges faced by chip and systems designers. Grid technology has enabled the unavoidable statistical variations introduced by scaling to be examined in unpreceden...

Coal mining and related industry can increase heavy metals (HMs) concentrations in soil, atmosphere and wheat, thereby posing metal-associated human health risk via food ingestion.  In this study, 58 samples of soil, wheat, and dust were collected from Xuzhou coal mine eastern China, six kinds of HMs Pb, Cd, Cu, Zn, As and Cr were studied for their spatial distribution in wheat, enrichment in d...

2010
Hyunhee Park Haedong Park Inseop Lee

OBJECTIVES The objective of this study is to investigate the distribution patterns and exposure concentrations of bioaerosols in industries suspected to have high levels of bioaerosol exposure. METHODS We selected 11 plants including 3 livestock feed plants (LF industry), 3 metal working fluids handling plants (MWFs industry), and 5 sawmills and measured total airborne bacteria, fungi, endoto...

2003
Sheng-Tun Li Huang-Chih Hsieh I-Wei Sun

Determining definite and consistent measurement and computation of materials and operations is of great importance for the operation procedures in metal industry. The effectiveness and efficiency of such decisions are greatly dependent on the domain understanding and empirical experience of engineers. The complexity and diversity of domain knowledge and terminology is the major hurdle for a suc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده شیمی 1386

در این پژوهش، ترکیب 1و3- پروپان دی آمونیوم پیکولینات، ترکیب(1)، از واکنش بین 1و3- پروپان دی آمین و پیکولینیک اسید در تتراهیدروفوران تهیه شد. همچنین ترکیب 2و3-پیریدین دی امونیوم دی پیکولینات، ترکیب (2)، از واکنش 2و3- پیریدین در آمین و 2و6-پیریدین دری کربوکسیلیک اسید به دو روش رفلاکس در حلال هیدروفوران و روش مکانوشیمیایی تهیه شد. محصول روش دوم ترکیبی با ساختاری متفاوت، ترکیب (3)، به دست آمد. این ...

Journal: :international journal of advanced design and manufacturing technology 0
sadegh rahmati hamidreza khalili

automobile body plays crucial role in preventing the collision energy transfer in severe accidents to the passengers. if the collision energy is dissipated or saved in bumper or chassis, the amount of damage to the occupants would be minimized. using novel laminated panel (fiber metal laminate) in auto body, and considering the characteristics such as high energy absorption, strength, high dent...

Journal: :Nanoscale 2013
Zhen-Xing Li Wei Xue Bing-Tao Guan Fu-Bo Shi Zhang-Jie Shi Hong Jiang Chun-Hua Yan

Translation of homogeneous catalysis into heterogeneous catalysis is a promising solution to green and sustainable development in chemical industry. For this purpose, noble metal nanoparticles represent a new frontier in catalytic transformations. Many challenges remain for researchers to transform noble metal nanoparticles of heterogeneous catalytic active sites into ionic species of homogeneo...

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