Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
In order to give a suitable heat treatment technique for as-extruded Mg-5Sn-2Si-2Sr alloy, the microstructure and mechanical properties of the as-extruded alloy after T4, T5, T6 heat treatment were investigated by means of hardness tester, the X-ray diffraction, the tensile tester and the optical microscopy. The resul…
Les maladies vasculaires, particulierement celles associees aux vaisseaux sanguins de petit diametre, sont la premiere cause de deces aux Etats-Unis. Les couts lies aux maladies cardiovasculaires ont augmente constamment avec le temps. Dans les dernieres annees, de nombreuses recherches en bio-ingenierie ont ete reali…
The world has faced with various environmental problems such as climatic change, global pollution, and depletion of natural resources. Conventional economic development continues not only to intensify the magnitude of the problems but also to damage growth potential of future generations. Therefore, recent manufacture…
A study on microstructure control of multi-phase steel have been implemented to higher strength with improved formability. However, it is well known that the high strength of steel are susceptible to hydrogen embrittlement. The mechanisms of hydrogen embrittlement is caused by complex interactions. In this paper, the…
Designing and fabricating a welding machine cart for the welders is a product that fulfills the welder’s needs. This project uses many materials such as mild steel, galvanized iron, stainless steel and others. Overall, this project involves many processes, starting from the design concept, fabrication and assembling p…
In variable electric fields (2,45 GHz frequency microwaves) we are faced with energy loss, especially because of the fact that electrical polarization does not vary in phase with electric field intensity - these losses are called losses by electrical polarization. These losses, thus due to the post electrical effect t…
Skin is the largest organ of the human body. It is a protective organ and of all its known functions, the most significant is the capacity to adapt itself to the contours of the body. The current study aims to determine the extent to which hydration influences or is influenced by elasticity, by comparing the parameter…
A new kind of polarimeter scheme is suggested using solid state semiconductors. The new approach is based on the modulation over the intensities of the diffracted beams through a two-dimensional chiral grating, reported recently. It will be demonstrated that at least four intensity measurements of no equivalent diffra…
Delayed timing is a complex adjustment of large-diameter circular knitting machine (LCKM). It corresponds to the delay between cylinder and dial needles knock-over. It is generally not well-known by machines users and its impact on fabric properties has not been enough studied in literature. Knitters generally use exp…
Para el análisis de los fenómenos transitorios que se originan durante la operación de los transformadores eléctricos, se pueden emplear los modelos implantados en las herramientas de simulación tipo EMTP. Algunos de estos modelos requieren la especificación de parámetros que son difíciles de obtener a partir de ensay…
ÖZETBitim işlemleri, tekstil terbiye proseslerinin son basamağını oluşturan ve mamulün kullanım, tutum ve görünüm özelliklerini etkileyen ve yeni özellikler kazandıran işlemlerdir.Bitim işlemleri prosesi, materyal için kullanılan bitim işlemleri maddeleri ve kimyasal yapıları, bitim işlemleri reçetelerinde kullanılan…
Nano sized pigments with the general formula CoxZn1-xAl2O4 (x = 0, 0.2, 0.4, 0.6, 0.8, 1) were synthesized using chlorides by gel combustion method at 700, 800, 900, 1000, 1100°C. DTA/TG, XRD, UV-Vis. and SEM were used to characterize the samples. The DTA results revealed that the formation of the spinel phase occurre…
Structural, microstructural, infrared analysis and magnetic properties of Ni1-x ZnxFe2O4 (NZ) [x = 0.30 (NZ30), 0.35 (NZ35) and 0.40 (NZ40)] nanoferrites have been thoroughly studied. These NZ nanoferrites were synthesized by chemical combustion route and annealed at 500 o C for 5h. Fourier transform infrared (FTIR) s…
Author's final manuscript November 19, 2002
Powder diffraction is a basic method in applied crystallography. One of the key parts of the experimental data processing is the process of indexation - determination of lattice parameters. The lattice parameters are essential information required for phase identification as well as for eventual phase structure soluti…
Different structures of the silver nanoparticles embedded in the silica layer atop the silicon substrate are simulated by the finite-difference time-domain method. The effects of nanoparticle size, period, and the silica layer thickness are studied and the comparisons of the structures with and without the silica laye…
In this work, a magnetostatic inverse problem is solved, in order to reconstruct the electric current distribution inside high voltage, vacuum circuit breakers from measurements of the outside magnetic field. The (rectangular) final algebraic linear system is solved in the least square sense, by involving a regularize…
We report a normal incidence Ge/Si avalanche photodiode with separate-absorption-charge-multiplication (SACM) structure by selective epitaxial growth. By proper design of charge and multiplication layers and by optimizing the electric field distribution in the depletion region to eliminate germanium impact-ionization…
The films were deposited on glass slide substrates by DC magnetron sputtering method by using a ZnO target doped with Ga2O3 of 3wt%, then annealing processing were implemented respectively under the temperature of 250 °C with the time of 0,30,60,90 and 120 minutes.Effects of sputtering on the structural and optical an…
Linear–dendrite copolymers containing hyper branched poly(citric acid) and linear poly(ethylene glycol) blocks PCA–PEG–PCA are promising nonmaterial to use in nanomedicine. To investigate their potential application in biological systems (especially for drug carries) ONIOM2 calculations were applied to study the natur…