Materials Literature
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In order to improve the hydrophilic property of polymer films, coating solutions which showed a good hydrophilic property, were prepared by the sol-gel method. The coating solutions were prepared by adding different types of silane coupling agents (aminosilane, epoxysilane and acrylsilane) to a colloidal silica (15 nm…
Aluminum is widely used in the industry for its light weight, corrosion resistance and good heat conductivity and high electrical. Violence is not so high and a less attractive appearance needs to be fixed, one of which with a coat of aluminum with a Nickel electroplating process. This research aims to know the influe…
Tujuan penelitian adalah untuk mengetahui karakteristik beton dengan penambahan limbah serat polimer (nylon) dan polimer concrete terhadap pengujian tekan dan tarik belah. Perencanaan campuran beton menggunakan metode DoE (Develoment of Environment). Rancangan benda uji menggunakan kuat tekan K-175, faktor air semen (…
The properties of a single heterojunction between gapless graphenes with identical work functions but different Fermi velocities have been investigated. Reflection and transmission coefficients are obtained for charge carriers passing through this junction. It is shown that total internal reflection (with a critical a…
https://doi.org/10.5604/17348412.1228374
Scaling of integrated circuits leads to increase in design complexity of the transistors. Interconnect delay, Power dissipation and electromagnetic interferences arises due to increase in resistance and capacitance at the nanometer level. Sub threshold operation of devices for ultra-low power requirement necessitates…
A new methodology for the detection of insulator arc faults for the smart grid environment based on phasor angle measurements is presented in this study and the real time phase angle data are collected using Phasor Measurement Units (PMU). Detection of insulator arcing faults is based on feature extraction and frequen…
This paper proposes positive sequence extraction based state feedback theory for neutral clamped voltage source inverter (VSI) based Distribution Static Compensator (D-STATCOM) for three phase, four wire, non-stiff system. Generally, in stiff system, the instantaneous symmetrical component theory is used to generate t…
This paper explains the leakage current and pollution flash over of 11kv pin insulator subjected to unknown cause due to the Bird excretion. The bird excretion formed contamination on insulator surface. It find the wet contaminated insulator flash over voltage is more than the dry contaminated flash over voltage the w…
Dye-sensitized solar cells (DSSCs) are promising third generation photovoltaic devices given their potential low cost and high efficiency. Some factors still affect DSSCs performance, such structure of electrodes, electrolyte compositions, nature of the sensitizers, power conversion efficiency, long-term stability, et…
The structure and phase state and internal stress fields of plasma powder Ni–Cr–B–Si–Fe/WC surface coatings are compared in the presence and absence of a modifier: Al 2 O 3 nanoparticles. PS-12NVK-01 powder alloy applied to a steel 20 substrate is studied by transmission diffraction electron microscopy of thin films,…
The structure and the mechanical properties of aluminum V95 and AMts alloys with various grain sizes (from micron to submicron) are studied in a wide range of strain rates (from 10 –3 to 10 5 s –1 ). Submicrocrystalline (200–600 nm) materials are formed by dynamic channel-angular pressing at a strain rate of 10 5 s –1…
As the California High-Speed Rail (HSR) project becomes reality, many communities involved in, or affected by, the California HSR project have considered how to connect the new HSR passenger services to local urban transportation systems - such as bus and light rail systems - and how they can take advantage of HSR acc…
A new heterogeneous catalyst, Mn(salicylaldimine) complex covalently bonded to α-titanium phosphate has been synthesized by in situ method and characterized by BET surface area, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, Fourier transform infrared spectra, X-ray photoelectron sp…
Semiconductor Nanoparticles (NPs) displays interesting electronic and optical properties that are attributed to the quantum confinement effect and their large surface to volume ratio of atoms, both of which are fundamental and of technological interest. Currently, cadmium sulfide (CdS) nanoparticles have attracted con…
The effective application of a biocatalyst based on recombinant enzyme preparations obtained using Penicillium verruculosum is studied for the modification of marketable bleached sulfate hardwood cellulose. The effect of treatment with cellulase complex on the structure, morphology, and surface state of cellulose fibe…
The structural, transport, and magnetic characteristics of polycrystalline Mn x Si1–x (x ≈ 0.51–0.52) films grown by pulsed laser deposition onto Al2O3(0001) substrates when the low-energy components are deposited owing to collisions with the atoms of the buffer gas have been studied in the “shadow” geometry. The magn…
We present the experimental demonstration of the first terahertz isolator (working frequency > 1 THz), obtained using the non-reciprocal electromagnetic properties of graphene under magnetostatic bias. The presentation will cover in detail the design, fabrication and measurement of the device. The isolator operated in…
The influence of Spark Plasma Sintering / Field Assisted Sintering Technology applying pulsed direct current up to the root-mean-square current densities of 129 A/cm2 on the interfacial reactions in Al - Fe - Al stacks was investigated at temperatures between 500°C and 600°C. Independently of the current density and c…
Warpage has become a very critical reliability problem for the advanced electronic packaging technique. One or more chips are stacked on the substrates for a device. The device thus contains materials that have different physical properties. The most prominent problem would be the differences in the thermal expansion…