Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: June 2011
Authors: S. Hossein Seyedein, M.T. Salehi, Hekmat Razavizadeh, Nafiseh Dakhili
The effect of ammonium chloride, used as flux, on the pyrometallurgical recovery of zinc from corroded canes of spent DBCs (dry battery cells) was determined by M.A.Rabah. et al [6].
Cinar Sahin et al [7] had subjected 3 different type of ash containing varying levels of chloride to 3 types of treatments.
The results of the study by N.Guresin et.al [8] indicated that pyrometallurgycal roasting followed by alkali wash treatment with sodium carbonate of the ash will be useful in the removal of chloride from zinc ash.
Table1 XRF Analysis of the Chemical Composition of Coarse Fraction of Zinc Slag Wt% Element 51.68 Zn 12.88 Cl 1.97 Pb 1.71 Fe 1.37 Ca 3.91 Si 2.81 Al Figure1 X-ray diffraction patterns of the Coarse Fraction of Zinc Slag 2-3.
El-Sayed, “Recovery of Zinc and Some of Its Valuable Salts from Secondary Resources and Wastes,” Hydrometallurgy, 37 (1) (1995), pp. 23–32
Online since: July 2020
Authors: Nabaa S. Radhi, Nawal Mohammed Dawood, Zainab S. Al-Khafaji
Al-Khafaji3 1&2University of Babylon/Department of Metallurgy Engineering/Babylon, Iraq 3Al-Furrat Al-Awsat Distribution Foundation\Ministry of Oil\Babylon, Iraq 3Al-Mustaqbal University College/Department of Engineering/Babylon, Iraq Mat.newal.mohammed@uobabylon.edu.iq Keywords: composite coating, electroplated, corrosion, nanoscale and microhardness Abstract.
In view of intensifying the substratum's protection, multilayer coating is utilized [3] Torabinejad et al.[4 ] conducted an experimental on Ni-Fe with nano-alumina particles and without it, using the method of electrodeposition by pulse current and assessed the wear and corrosion resistance conduct of the layer.
Table 1: Preventive Chemical Constituent of Austenitic Stainless Steel 316L in Weight Percentage Rendering to [19] EL Fe C Mn Si Cr Ni P S Mo V Cu Wt.% bal. <0.02-<0.03 2.0 1.0 16-18 10-14 _ _ 2-3 _ _ Table 2: Spectrochemical Constituents of Austenitic Stainless Steel 316L in Weight Percentage EL Fe C Mn Si Cr Ni P S Mo V Cu Wt.% bal. 0.041 1.42 0.27 19.38 10.24 0.025 0.003 0.283 0.080 0.218 The specimens used in all the tests were prepared by using cylindrical moulds and the final specimens were disc-shaped with the following dimension: thickness = 3mm and diameter = 20 mm).
Similar conclusions are drawn by Srivastava et al. [27] regarding the sliding range; the wear rate is discovered to increase linearly at a greater sliding distance.
Online since: July 2012
Authors: Chang Hua Zhang
A similar effect was reported by Bourenane et al. [18].
This may be due to the reaction of the acid with Span-80 which results in a partial loss of its surfactant properties as illustrated by Bourenane et al. [18], which leads breakage ratio of emulsion liquid membrane increasing.
These similar phenomena are supported by Reis et al. [20], who found that the increase of acid concentration from 2.0 to 2.5 M caused a significant effect on water transport.
El-Hassanin, Desalination 212 (2007) 165–175
El-Hefny, J.A.
Online since: May 2016
Authors: Y.P. Cui, L.Y. Zhang, Z.N. Luo, L. Zhou
Rossi et al. [5] gave detailed explanation about the effect of Mg on the aging of LED and they concluded that the unstable compound of Mg, mainly Mg-H: get broken down into shallow acceptors.
EManyakhin et al. [6] analyzed the distribution of ionized acceptor in the space charge layer as well as the change of optoelectronic parameters of GaN based LED in the current acceleration lifetime test and gave the reason for the change of the luminescence intensity in the aging process.
Fig.2 Electroluminescence (EL) spectra of blue light LED lamps for 340mA lighting Fig.3 Electroluminescence (EL) spectra of white light LED lamps for 344mA lighting The difference in color chromaticity of a single LED light source at different time reminds people to take into consideration of color drift with time when design LED, especially in occasions with relatively high requirements.
[9] Lee Sung-Nam, Cho S Y, Ryu H Y, et al.
Online since: November 2005
Authors: Tetsuo Shoji, Yo-ichi Takeda, Hiroyuki Yamauchi, Qunjia Peng
Daret et al: Proc. 9th International Symposium on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors, TMS, Warrendale, PA (1999), pp. 217-224 [2] R.A.
Sudo et al: Proc. 7th International Symposium on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors, NACE, Houston, TX (1995), pp. 541-551 [5] C.L.
O'Toole and E.L.
Kudo et al: Nucl.
O'Toole and E.L.
Online since: February 2021
Authors: Kamrun Nahar
Al-Kahlout, S.A.
El-Agez, H.S.
El-Ghamri, Dye-Sensitized Solar Cells Using Fifteen Natural Dyes as Sensitizers of Nanocrystalline TiO2, Science, Technology and Development 34 (3): 135-139 (2015)
El-Agez, S.A.
El-Agez, K.S.
Online since: October 2007
Authors: E. Evangelista, Mohamad El Mehtedi, B.H. Lee, S.H. Park, Chong Soo Lee
El Mehtedi 2,c , E.
Recently, Barnett et al. have proposed that there are boundary conditions of processing parameters such as temperatures, grain sizes, stress modes and so on for 'twining dominated flow' and 'slip dominated flow'[5].
Online since: April 2010
Authors: S. Dost, Mohammed El Ganaoui, Farid Mechighel, Mahfoud Kadja, Bernard Pateyron
El Ganaoui1,d and S.
A recent numerical study of macrosegregation defects formation, during solidification of an Al- 4.1%wtCu binary alloy has been carried out in [11], for which, the mixture continuum model was used.
Macrosegregation defects patterns for multicomponent superalloys were also studied by Felicelli et al. [12] using the volume averaged model.
For the discretization of the advection term, in order to prevent numerical diffusion errors of the Central Difference Scheme (CDS), largely known in the advection dominated problems, which has large source-driven liquid concentration gradients, Prescott et al. [23], rather than CDS, an alternative high order scheme, called QUICK, Hayase et al. [24], was used in the discretization of the advection terms in energy and species equations.
El Ganaoui, B.
Online since: August 2012
Authors: Meng Chen, Zhe An Lu, Zhi Li
Ross et al. explained the strain rates of failure strength of concrete [3]; Three types of SRFC specimens with 0.0%, 3.0% and 6.0% (percentage by volume) of ultrashort steel fibers were fabricated and subjected to impact compression tests conducted on 74-mm-diameter SHPB by Wang Zhiliang et al.A dynamic damage constitutive model of SFRC composite under compression was proposed[4];Hu Shisheng ,Wu Xutao et al. made impact compressive test on concrete using modified Ф74mm SHPB equipment with pyramidal- tapered cross-section and got the stress-stain curves at six groups of strain rates between 15s-1and 85 s-1[5][6]; Yan Shaohua et al. conducted static and dynamic compression tests on high strength SFRC with different percentage by volume (0%, 3% and 6%), and summarized the relationship between compressive strength and strain rate[7].
University of Science and Technology of China,May, 2006,81-85 [7]Yan Shaohua,Li Zhicheng,Wang Mingyang, et al.
Impact compressive experiment of spur-short steel fiber reinforced concrete by SHPB [J].Concrete,2007 ,(8): 55-57 [11]Dong joo Kim, Kittinun Sirijaroonchai, Sherif El-Tawil, etal.
Online since: November 2014
Authors: Jamarosliza Jamaluddin, Nadia Adrus, Siti Khairunisah Ghazali
., et al., A review on pineapple leaf fibers, sisal fibers and their biocomposites.
[3] Maheswari, C.U., et al., Tensile and Thermal Properties of Polycarbonate-Coated Tamarind Fruit Fibers.
[6] Leao AL, S.S., Cherian BM, Frollini E, Thomas S, Pothan LA, Kottaisamy M Mol Cryst Liq Cryst 2010. 522: p. 318
El-Naggar, Synthesis and characterization of novel gels based on carboxymethyl cellulose/acrylic acid prepared by electron beam irradiation.
[10] Zhai, M.L., et al., Syntheses of PVA/starch grafted hydrogels by irradiation.
Showing 3571 to 3580 of 9914 items