Materials Literature
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Equation of state (EOS) and other thermodynamic properties of Fe2B are studied using first- principles calculations based on the plane wave full potential density functional theory method within the generalized gradient approximation (GGA) for exchange and correlation. It is demonstrated that the ratio c/a of about 1.…
Preparation of oligosaccharides from chitosan and Na-alginate were done using ?-rays and H 2 O 2 as oxidizing agent. Structural and molecular weight changes of such oligosaccharides were determined by GPC, FT-IR and UV-Vis. spectroscopy. FT-IR and UV-Vis. studies revealed that during radiation degradation process, the…
Sm3+ doped bismuth borate glasses of the composition (50 - x)B2O3:50Bi2O3:xSm2O3 (where x = 0.00, 0.50, 1.00, 1.50, 2.00 and 2.50 mol%) have been synthesized by conventional melt quenching technique. In order to understand the role of Sm2O3 inbismuth borate glasses, the density, the molar volume, the refractive index…
Dielectric permittivity and electrical conductivity of LiNaGe4O9 single crystals were measured in AC field along main crystallographic directions. It has been shown that above 400 K conductivity becomes strongly anisotropic, being highest along [001] axis. Taking into account the structural features, temperature growt…
The powder sample of CoFe2O4 have been successfully prepared by a sol gel method with different Co2+ contents to study the effect of addition of percentage molar composition of Co2+ to its crystal structure and magnetic characteristics of CoFe2O4. The crystal structure of CoFe2O4 was measured by X-ray diffraction. Mag…
Gold-Silica nanocomposite thin films were prepared by RF-magnetron sputtering technique on glass substrate at room temperature. Subsequent thermal treatment was used to promote nanocluster formation. The prepared samples were characterized by X-ray diffraction and optical absorption spectroscopy. After annealing, an i…
In the paper the eigenfrequencies of pristine and defective single-walled carbon nanotubes are investigated. The defects are in the form of point vacancies. The axial vibrations of structures are studied only. A special attention is focused on the effects of material and geometrical properties of nanostructures on the…
Environmental awareness and depletion of the wood resources are among vital factors that motivate various researchers to explore the potential of agro-based crops as an alternative source of fiber material in paper industries such as writing, printing, wrapping, and packaging. Fibers from agro-based crops are availabl…
H 4 SiW 6 Mo 6 O 40 /SiO 2 was sensitized by H 2 O 2 solution that significantly improved its catalytic activity under simulated natural light. Degradation of basic fuchsin was used as a probe reaction to explore the influencing factors on the photodegradation reaction. The results showed that the optimal conditions w…
The hydrogen permeation behaviors of L360NCS carbon steel in different H2S corrosive media were studied by a high-temperature, high-pressure hydrogen permeation system. The corrosive media contained 5% NaCl solution, 5.0% NaCl and 0.5% CH3COOH solution (NACE-A solution), and the service working condition solution. The…
T he present work relates with developing long acting sustain release microspheres of ropinirole hydrochloride (RPN) for treatment of Parkinson's disease, that will sustain drug release up to 1 month.Biodegradable microspheres of RPN were prepared by using two different polymers (poly lactic co glycolic acid [PLGA] 50…
Current practices for modeling the ocean floor in underwater explosion simulations call for application of an inviscid fluid with soil properties. A method for modeling the ocean floor as a Lagrangian solid, vice an Eulerian fluid, was developed in order to determine its effects on underwater explosions in shallow wat…
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The ZnO-CdO nanocomposite was prepared by sol-gel method by using their respective nitrates. It is a simple and low cost method to prepare nanocomposites. The drying temperature and drying period of prepared gel was varied during the synthesis process. The prepared samples were characterized by using scanning electron…
Describes reactive silicones that can be formulated into coatings, membranes, cured rubbers and adhesives for mechanical, optical, electronic and ceramic applications. Information on reactions and cures of silicones as well as physical properties shortens product development time for chemists and engineers. The detail…
The field effect model for potential-induced degradation of p-type crystalline silicon solar cells postulates an inversion of the emitter surface. The electrical properties of the inversion layer was evaluated based on theoretical considerations and the effect of the inversion layer on the solar cell device was modele…
For the location of Partial Discharges(PDs) in transformers using Ultra-High-Frequency(UHF) method,the errors of time-differences at different sensors are unavoidable,which possibly lead to no solution to the time-difference-equations in real number field,further leading to failure to locate the PDs.In order to work o…
Article history: Received 2 April 2013 Received in revised form 5 May 2013 Accepted 30 May 2013 Available online 6 June 2013
Biogas 泥浆不由于它具有复杂作文和古怪味觉的不稳定的材料的高数量对液体化肥合适。以便高效地把 volatiles 从 biogas 泥浆移开，动态 headspace 和煤气的层析团 spectrometry 被用来清除 volatiles 的作文。氮脱衣和过剩臭氧也被用来把 volatiles 从 biogas 泥浆移开。结果证明在 biogas 泥浆有 21 种不稳定的混合物，包括硫混合物，器官的胺，苯，烃和链烷的卤素产生，其中一些有强壮的古怪味觉。在 biogas 泥浆的不稳定的混合物能被氧化被氮脱衣并且与 81.7% 的率与 53.0% 的率移开并且过剩臭氧脱衣。在这个基础上，不稳定的混合物的移动率由氯仿到达了 99…
The La-Mg-Ni-based A2B7-type La0.8-xNdxMg0.2Ni3.35 Al0.1Si0.05(x=0,0.1,0.2,0.3,and0.4) electrode alloys were prepared by casting and annealing. The influence of the partial substitution of Nd for La on the structure and electrochemical performances of the alloys was investigated. The structural analysis of X-ray diffr…