Volume 22, Issue 3
مرور بر اساس
ارسال های اخیر
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Preparation and Characterization of SiO2-CaCl2 Nanocomposite by the Sol-Gel Method
(Materials and Energy Research Center, 2009-10-01)The SiO2-CaCl2 hybrid porous materials were prepared by the sol-gel method. This process was conducted by the hydrolysis and condensation of Tetraethyl orthosilicate (TEOS) by replacement of ethanol from alcogel and drying ...
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Microstructure and Corrosion Performance of Silica Coatings on Aluminum Surface Prepared by Plasma Electrolysis Technique
(Materials and Energy Research Center, 2009-10-01)Silica phases were precipitated on aluminum surface by potentiostatic plasma electrolysis technique. Aqueous sodium silicate solutions with different concentrations were used for this purpose. SEM, EDS, XRD, surface profiles ...
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Controllable Synthesis of Flower-Like ZnO Nanostructure with Hydrothermal Method (RESEARCH NOTE)
(Materials and Energy Research Center, 2009-10-01)Flower-like ZnO nanostructures were synthesized by decomposing Zn(OH)2 in 1,4- butanediol at 105 °C for 36 h. Size of flower-like ZnO nanostructure can be controlled by pH of the aqueous solution. In the preparation of ...
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Mathematical Analysis of MHD Flow of Blood in Very Narrow Capillaries (RESEARCH NOTE)
(Materials and Energy Research Center, 2009-10-01)A mathematical model for blood flow in narrow capillaries under the effect of transverse magnetic field has been investigated. It is assumed that there is a lubricating layer between red blood cells and tube wall. The ...
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Production of Extracellular Protease and Determination of Optimal Condition by Bacillus Licheniformis BBRC 100053 (RESEARCH NOTE)
(Materials and Energy Research Center, 2009-10-01)The production of protease by Bacillus licheniformis BBRC 100053 was studied. The most appropriate medium for the growth and protease production is composed of: lactose 1%, yeast extract 0.5%, peptone 0.5%, KH2PO4 0.1%, ...
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Application of Nanotechnology in Self-Compacting Concrete Design
(Materials and Energy Research Center, 2009-10-01)In this study, first, different mix design of four types of Self-Compacting Concrete (SCC), 1. SCC consisted of only nanosilica, 2. SCC included only microsilica, 3. SCC consisted of both microsilica and nanosilica and 4. ...
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Adaptive Segmentation with Optimal Window Length Scheme using Fractal Dimension and Wavelet Transform
(Materials and Energy Research Center, 2009-10-01)In many signal processing applications, such as EEG analysis, the non-stationary signal is often required to be segmented into small epochs. This is accomplished by drawing the boundaries of signal at time instances where ...
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Some Geometrical Bases for Incremental-Iterative Methods (RESEARCH NOTE)
(Materials and Energy Research Center, 2009-10-01)Finding the equilibrium path by non-linear structural analysis is one of the most important subjects in structural engineering. In this way, Incremental-Iterative methods are extremely used. This paper introduces several ...
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A Tabu Search Method for a New Bi-Objective Open Shop Scheduling Problem by a Fuzzy Multi-Objective Decision Making Approach (RESEARCH NOTE)
(Materials and Energy Research Center, 2009-10-01)This paper proposes a novel, bi-objective mixed-integer mathematical programming for an open shop scheduling problem (OSSP) that minimizes the mean tardiness and the mean completion time. To obtain the efficient (Pareto-optimal) ...
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Modeling of Riyadh Sewage Treatment Plant: 1-Model Development, Verification and Simulation
(Materials and Energy Research Center, 2009-10-01)In Saudi Arabia, the Riyadh Sewage Treatment Plant (RSTP) uses the activated sludge technology as the secondary treatment process for sewage. Due to the complex nature of the process, a rather simplified, yet practical, ...
