Materials Literature
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Cotton fibres contain naturally occurring non-cellulosic materials such as sugars, wax, metals and other organic species that may influence fibre characteristics, i.e. physical and chemical properties, yarn processing efficiency as well as product quality. Chemical and physical tests were conducted on raw cottons from…
Z-Scan technique has been used to study the nonlinear characteristics of nano CuO. The results of the experiment show that there is an excellent agreement between experimental and theoretical analysis of the three photon absorption (3PA) spectrum of CuO.
In this study, the effect of ceramic coating on the performance and gases emission on diesel engine was investigated. A four-stroke, direct injected, single cylinder, diesel engine was tested at constant speed and at different load conditions without coating. Then, the inlet and exhaust valves faces were coated by abo…
Plastics have become an important part of modern life and are used in different sectors of applications like packaging, building materials, consumer products and much more. Each year about 100 million tons of plastics are produced worldwide. Demand for plastics in India reached about 4.3 million tons in the year 2001-…
Abstract- Cadmium Sulphide (CdS) thin films were grown on glass substrates by chemical bath deposition technique. The effect of cadmium ion concentration on the structural and optical properties of the CdS films has been considered in this work. Structure of these films was characterized by X-ray diffraction,where sho…
The polymerization of aniline with oxidant (K S O ) catalyzed by Maghnite-H in chloroform (CDCl ) 22 8 3 + as solvant at 0°C was investigated. The effects of the amounts of Mag-H , agent oxidant, water and temperature + on the polymerization of aniline were studied. The polymerization yield increased as the proportion…
Corrosion behaviour of copper in phosphoric acid containing sodium chloride at different concentrations was studied in the first part of this paper to illustrate the aggressively of chloride toward copper corrosion in this medium. The second part treated copper corrosion inhibition effect of Artemisia oil (AO) extract…
Summary Evaluating our experiments performed so far the industrial grass proved to be a hopeful yearly renewable raw material for energetic as well as for industrial application. It can be concluded from results of pilot and industrial scale production that the industrial grass cellulose was equivalent or even better…
In this research we explored the calorific or heat value of alcohol fuels as well as blends with kerosene by using both glass and bomb calorimeters comparatively. The calorific values obtained from the combustion of alcohol fuels from glass calorimeter were very much lower than those obtained from bomb calorimeter, as…
The purpose of this research was to obtain directly compressible agglomerates of aceclofenac-paracetamol containing desired ratio of drugs using a crystallo-coagglomeration technique. Crystallo-co-agglomeration is an extension of the spherical crystallization technique, which enables simultaneous crystallization and a…
We have prepared supermalloy (Ni-Fe-Mo) thin films by using electrodeposition method. Electrodeposition is a simple, flexible, and inexpensive technique for fabricating the metallic thin films, which does not require complex and expensive vacuum apparatus and the deposition usually takes place in the ambient temperatu…
Bacteria can precipitate mineral through biomineralisation which can be exploited to increase the strength of concrete. In this study, two types of bacteria, namely Bacillus subtilis and Thermus thermophilus, were used to produce bioconcrete. These bacteria are able to precipitate silica minerals when incubated in sil…
Composite micro-emitters consisting of a tungsten core coated with different dielectric materials were prepared. Various properties of these emitters were measured, including the current-voltage (IV) characteristics and spatial current distributions. We compared coated and uncoated tips and determined differences betw…
3 Abstract: In this paper modification Chemical Stabilization of dispersive clay by white natural alum is evaluated. The studied clay taken from residuals of a constructing dam, called Mirzakhanloo, located in Zanjan province, northwest of Iran. Dispersion potential of this soil and its modifiability were evaluated us…
The behavior and toxicological properties of nanoparticles (NP) in biological medium depends heavily on their interactions with proteins. In return, the structure, stability and biological properties of the proteins that interact with the nanoparticles are strongly affected by this interaction. Unfortunately, the mech…
The removal of citric acid, an organic ligand, from aqueous solution by adsorption onto activated Pistacia Lentiscus leaves’ powder was investigated. Batch adsorption studies were performed to evaluate the effect of various operating parameters affecting the adsorption process such as pH, contact time, initial citric…
Using traditional luminescence methods to develop latent prints becomes problematic when dealing with backgrounds that dem- onstrate strong luminescence. In such instances, the application of time-resolved luminescence is considered a good solution. However, this technique requires the use of complicated devices that…
In this work, the effects of cryogenic treatment on the wear behavior of D6 tool steel were studied. For this purpose, two temperatures were used: -63 o C as shallow cryogenic temperature and -185 o C as deep cryogenic temperature. The effects of cryogenic temperature (Shallow and deep), cryogenic time (kept at cryoge…
Expressions of the 22 genes involved in rubber biosynthesis, from the acetyl CoA genesis and the mevalonate (MVA) pathway to IPP polymerization, were analyzed by real-time polymerase chain reaction (PCR). The results revealed that the expressions of most genes were not related to the latex yield trait when compared am…
Human bone marrow derived mesenchymal stem cells (BMMSCs), a source of important autologous stem cells without ethical debate, have been used in both experimental and clinical treatment. Therefore, this research aims to isolate, culture and cryopreserve BMMSCs. Mesenchymal stem cells (MSCs) were preserved in each cryo…