نتایج جستجو برای: metallic iron

تعداد نتایج: 179752  

Journal: :Environmental pollution 2004
T Dombek D Davis J Stine D Klarup

To help elucidate the mechanism of dechlorination of chlorinated triazines via metallic iron, terbutylazine (TBA: 2-chloro-4-ethylamino-6-terbutylamino-1,3,5-triazine), deisopropyl atrazine (DIA: 2-amino-4-chloro-6-ethylamino-1,3,5-triazine), and chlorinated dimethoxy triazine (CDMT: 2-chloro-4,6-dimethoxy-1,3,5-triazine) were degraded via zero valent iron under controlled pH conditions. The lo...

2015
Xuhang Tong Hao Zhang D. Y. Li

Claims are often found in the literature that metallic materials can be nanocrystallized by severe plastic deformation (SPD). However, SPD does not generate a well-defined nanocrystalline (NC) material, which can be achieved by subsequent annealing/recovery treatment. In this study, molecular dynamics (MD) simulation is employed to study the effect of annealing on structure and mechanical prope...

2013
D. A. Papanastassiou G. J. Wasserburg

implications for the crystallization method of the metallic cores. In order to match observed P values in iron meteorites, the core must crystallize in the presence of the P-rich liquid. The composition of the S-rich liquid, dictated by the liquid immiscibility field, hasP contents much too low to reproduce P trends of iron meteorites. This suggests that inward core crystallization from the cor...

2014
Yon Joo Kwon John C. Hemminger

Iron pyrite, one of the phases in the FeS2 system, is a promising semiconductor for use in solar cell applications due to its earth-abundance, high absorption coefficient, and suitable bandgap. However, currently the efficiency of iron pyrite solar cell device does not exceed 3% [1]. Many studies attempted to understand the cause of the low open-circuit voltage in pyrite devices. Some studies s...

2012
G. A. S. Schulz S. Tamborim G. Cardoso T. Santos

The soot oxidation activity of metallic iron nanoparticles was studied under real diesel engine conditions. Particulate matter (PM) was sampled at distinct temperatures, using fuels containing ferrocene. The results indicated an 80% reduction of accumulated PM using fuels doped with 50 ppm ferrocene at a temperature of 460 ◦C. Temperature-programmed catalytic oxidation tests indicated that PM o...

Journal: :Journal of animal science 2006
J L Meisinger J M James C R Calkins

This research compared off-flavor notes and the relationship of pH and heme-iron content to off-flavor for different beef muscles. After grading, knuckles and shoulder clods were removed from 16 USDA Choice and 14 USDA Select beef carcasses, vacuum-packaged, and aged for 7 d. The rectus femoris (REC), vastus medalis (VAM), vastus lateralis (VAL), teres major (TER), infraspinatus (INF), and tric...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده دامپزشکی 1391

چکیده فارسی کلی باسیلوز پرندگان توسط اشریشیاکلی بیماریزای پرندگان (apec) ایجاد می گردد. علی رغم اینکه بیش از یک قرن است که apec شناخته شده است، کلی باسیلوز پرندگان به عنوان یک بیماری مهم آندمیک که صنعت طیور دنیا را با مشکل مواجه کرده مطرح است. اشریشیا کلی بیماریزای پرندگان موجب التهاب کیسه های هوایی، سپتی سمی و عموماً دیگر بیماری های خارج روده ای در ماکیان، بوقلمون و دیگر گونه های پرندگان می ش...

Journal: :Physical chemistry chemical physics : PCCP 2014
Xinxin Tian Tao Wang Yong Yang Yong-Wang Li Jianguo Wang Haijun Jiao

Spin-polarized density functional theory computations have been carried out to study the stable adsorption configurations of Cun (n = 1-7, 13) on Fe and Fe3C surfaces for understanding the initial stages of copper promotion in catalysis. At low coverage, two-dimensional aggregation is more preferred over dispersion and three-dimensional aggregation on the Fe(110) and Fe(100) surfaces as well as...

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