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 this research, the post weld heat treatment (PWHT) of duplex stainless steel (DSS) was study. The PWHT process can be affected by differing parameters. The specimen was duplex stainless steel UNS31803 grade sheet of 10 mm thickness. The PWHT parameters were analyzed by application of full factorial design. The fact…
A single-switch equalization charger, which is a SEPIC integrated with a series-resonant voltage multiplier, is proposed in this paper. The operation of the SEPIC in the proposed equalization charger is identical to a traditional one, while the series-resonant voltage multiplier is driven by an asymmetrical square vol…
The results of experimental investigation of a flow of a weakly conductive liquid in a coaxial channel with insulating walls are presented. The possibility of forming all the necessary conditions to generate X-ray radiation when liquid moves in the channel is shown. The questions of the electrization, the charge accum…
In this work, the instantaneous velocity and momentum fluctuations in suspended monolayer graphene are investigated by means of an ensemble Monte Carlo simulator. Due to the particular properties of graphene band structure (conical dispersion relationship near the Dirac points), instantaneous velocity fluctuations sho…
The transformation of the consumption of refractories for the production, out-of-furnace treatment, and casting of steel is considered. The main trends in developing the refractory market are shown to be a significant decrease in the specific consumption of refractories per 1 t liquid steel and the predominant applica…
This work involves experimental study for corrosion of amalgam as filling material after different period time (0, 7, 14, 21, 35, 42 days) in artificial sa liva by electrochemical method to estimate corrosion parameters such as corrosion potential Ecorr, corrosion current density icorr, and Tafel slopes bc & ba. The r…
In this study, we describe the growth of carbon nanotubes on commercial iron nanoparticles without carbon shell (Fe (nm), size <60 nm) andiron nanoparticles with carbon shell (Fe* (nm), size <60 nm) as catalysts by chemical vapour deposition method. In order to investigation of supports effects, preparation of catalys…
This paper presents a novel methodology for measuring the heat power of a permanent-magnet synchronous motor based on the thermal equivalence principle. Firstly, a set of experimental apparatus has been designed and implemented. Then a series of experiments has been conducted for obtaining a set of heat power values o…
The tendency of semiconductor market to increase component density in small chip leads to reliability issues such as Electromigration (EM). This phenomenon becomes critical in deep submicron design technology. In this paper we assess chip power grid lifetimes by taking into account redundant paths contribution in case…
Abstract Colloidal quantum‐dot based hybrid light‐emitting diodes (QD‐LEDs) that exhibit high efficiency, long lifetime, solution processability, color tunability and narrow emission bandwidth are reported. The devices possess maximum current and power efficiency of 3.2 cd/A and 2.1 lm/W for blue, 60 cd/A and 54 lm/W…
In this paper, moisture transfer properties were studied on different weave structure and different weft of polyester-cotton fabric. Under the same conditions, the moisture absorption rates and permeability rates were measured on the different weft of plain weave, satin weave, twill fabrics. The influence law of the f…
A flip chip device based on carbon nanotubes (CNTs) interconnections characterized up to 40 GHz is presented. An analytical model using an RLC transmission line is fitted from measurements of the fabricated structure. CNTs have the potential to make smaller interconnections than metal-based ones with the same degree o…
Polymeric insulator exposed to pollution leads to tracking and erosion affects their performance. There are no specific method to determine their service life. Most studies shows surface condition and their pollution severity of an insulator can be monitor by using leakage current frequency components. This paper pres…
Graphene is a thinnest conducting material in the world. Its ability to conduct electricity is higher than of other materials at room temperature.In addition with its high transparency graphene may find a variety of industrial applications if high quality large area monolayers can be produced. The chemical vapour depo…
In epitaxial silicon solar cells grown on low-cost substrates, an embedded porous silicon layer is used to block metal diffusion from the substrate into the epitaxial active layer. The gettering efficiency of porous silicon can be enhanced by reducing the pore radius. In the size range (27.2 nm–39.8 nm) investigated,…
La regeneracin sea con diferentes materiales ha sido el objetivo de mltiples investigaciones. La disminucin de la morbilidad quirrgica, la disminucin del tiempo quirrgico y los costos de hospitalizacin han fundamentado gran parte de esta investigacin Aunque el injerto seo autgeno
Polymeric nanofibrous mats are currently used for biomedical applications as tissue engineering scaffolds. Electrospinning is an innovative and efficient technology to produce scaffolds starting from a polymeric solution. However, toxic organic solvents must be frequently used to produce fibers with good morphology. I…
Self-healing, using applied ac or dc stresses, is a technique effectively used in metalized polymer film capacitors to eliminate defects in the polymer film and achieve increased breakdown stresses and higher commercial operating stresses and energy densities. Novel approaches for achieving self-healing in nano dielec…
In this paper an improved version of zeroth order resonator (ZOR) using Left Handed Metamaterial (LHM) is reported, and its performance is compared with the earlier published ZOR. The resonator is designed based on microstrip technology using composite right left handed transmission line (CRLH TL) approach. The conven…
Introduction Exposure to titanium dioxide nanoparticles (TiO2 NPs) results from its wide use in the fields of medicine, industry, engineering, and environmental technology. Objectives To investigate the effect of administration of TiO2 NPs on the ultrastructure of the rat liver and renal cortex. Materials and methods…