نتایج جستجو برای: eaf slag

تعداد نتایج: 7382  

2013
Shafiqul Islam Samima Nasrin Muhammad Ali Khan ASM Sakhawat Hossain Farhadul Islam Proma Khandokhar M Nurul Haque Mollah Mamunur Rashid Golam Sadik Md Aziz Abdur Rahman AHM Khurshid Alam

BACKGROUND The use of plants and their derived substances increases day by day for the discovery of therapeutic agents owing to their versatile applications. Current research is directed towards finding naturally-occurring antioxidants having anticancer properties from plant origin since oxidants play a crucial role in developing various human diseases. The present study was designed to investi...

Journal: :Journal of clinical microbiology 1989
D Senerwa O Olsvik L N Mutanda J M Gathuma K Wachsmuth

Stool samples were examined from 30 preterm neonates admitted to a nursery ward; 16 neonates had diarrhea, 12 constituted an age-matched control group without diarrhea, and 2 had an unknown history regarding diarrhea. Variable numbers of enteropathogenic Escherichia coli serotype O111:HNT strains possessing the gene coding for the enteroadherence factor (EAF) were found in stool samples from 13...

Journal: :Metals 2022

The CO2 emissions of electric arc furnaces (EAFs) can be reduced by decreasing the electrical energy consumed in melting iron scraps utilizing chemical energy. In general, efficiency EAF process improved using oxidation reaction heat and carbon combustion. When is added to molten steel, it not completely dissolved because its high point, floats slag layer, owing low density. Al dross a byproduc...

2014
Jyh-Cherng Gu

This investigation develops a revisable method for estimating the estimate value of equivalent 10 Hz voltage flicker (DV10) of a DC Electric Arc Furnace (EAF). This study also discusses three 161kV DC EAFs by field measurement, with those results indicating that the estimated DV10 value is significantly smaller than the survey value. The key point is that the conventional means of estimating DV...

2017

Submit Manuscript | http://medcraveonline.com rate of about 125 kg/t of the steel produced which leads to piling of the slag in the plant. This slag is generally recycled in a waste recycling plant (WRP) so as to separate the magnetic and the nonmagnetic portions by means of mechanical crushing and magnetic separation. The magnetic portion is then recycled and used in the primary steel making p...

2003
Benoit Boulet Gino Lalli Mark Ajersch

Electric arc furnaces (EAFs) are widely used in steelmaking and in smelting of nonferrous metals. The EAF is the central process of the so-called mini-mills, which produce steel mainly from scrap. Typical EAFs operate at power levels from 10MW to 100MW. The power level is directly related to production throughput, so it is important to control the EAF at the highest possible average power with ...

2012
Paul Alozie Nwafor Lucky Lebgosi Nwidu Wagner Vilegas

Carpolobia lutea leaves (CLL) (Polygalaceae) were earlier screened and the antiulcer ethnomedicinal claim established. This article seeks to quantitatively isolate, elucidate the active compounds from most active CLL fraction. Fractionation was by semi-preparative HPLC; the active fraction was subjected to radical scavenging assays (RSA) and quantification of the total phenolic content (TPC) we...

2011
Xiaoping Liang Yang Jin Yu Wang

To get suitable ladle slag which can avoid slag sticking onto the RH immersion tube during RH refining process of IF steel, the effect of composition on melting point and viscosity of RH refining ladle slag was studied by different additives which is based on CaO. The results of melting point and viscosity testing experiments indicates that, the melting point and viscosity of RH refining ladle ...

Journal: :Cutis 2011
Ana Nogueira Carmen Lisboa Ana F Duarte Paulo Santos Raquel Portugal Aurea Canelhas Eduardo Cardoso Filomena Azevedo

Granuloma faciale (GF) is an uncommon inflammatory dermatosis that usually presents on the face as reddish brown or violaceous papules and nodules that may coalesce into plaques. Eosinophilic angiocentric fibrosis (EAF) is a rare fibrosing condition that shares many histologic characteristics with GF and is regarded by some authors as a mucosal counterpart of GF. We present a case of GF with co...

2006
Ya MENG

In continuous casting of steel, the interfacial gap between the mold and the solidifying shell controls heat transfer in the process and is responsible for lubrication and the prevention of cracks and other defects. Mold slag forms when mold powder added to the top surface of the steel melts, and is the best current practice to perform these important functions. The properties and behavior of t...

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