Materials Literature
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The present study aims to determine the effect of heat treatment on the bulk etch rate of un-irradiated and gamma irradiated CR-39 detector. Track density and the damage in samples surface due to the heat treatment have also studied for the un-irradiated and gamma irradiated CR-39 detector. The samples of CR-39 polyme…
The possibility of controlling the magnetic anisotropy of multilayer [Fe/Pt] n structures grown by magnetron sputtering of Fe and Pt plates by varying number n of layers is studied. Mössbauer spectroscopy data and measured magnetic hysteresis loops demonstrate that the multilayer [Fe/Pt] n structures at n = 16 have a…
The present work describes results of investigation of structural characteristics of TiO2 ceramics, depending on temperature and thermal treatment conditions by using a variety of characterization techniques. TiO2 ceramics was prepared by extrusion method and developed as a material for electrodes for innovative water…
Empirical relationships were obtained at temperatures 10--80 °C between density p and mass concentration C (wt%) of pullulan, which was used as a standard polymer in aqueous solutions containing two representative ionic liquids, l-butyl-3-methylimidamlium chloride and 1-ethyl-3-m.ethylimidaolimn acetate. Water content…
A software-based method is proposed to eliminate the flooding interference strips in B-mode images, and to evaluate the cavitation bubbles generated during high intensity focused ultrasound (HIFU) exposures. In vitro tissue phantoms are exposed to 1.12 MHz HIFU pulses with a fixed 100 Hz pulse repetition frequency. HI…
Pada penelitian ini, purwoceng diberikan pada tikus betina bunting umur 1-13 hari dengan tujuan mengetahui bobot badan, ovarium, dan uterus serta mempertahankan titik implantasi yang terbentuk sebelum masa implantasi. Penelitian ini menggunakan 2 kelompok yaitu kelompok tikus bunting kontrol dan tikus bunting yang men…
Polysulfide resins,with trade name of G4 and G112, with short and long chain lengths respectively, were used as reactive modifiers to toughen epoxy resin. The effects of molecular weights of G4 and G112 on impact resistance, dielectric constant, thermal conductivity as well as decomposition heat and adhesion propertie…
The objective of this study was to develop a theoretical model and associated wear mode map to identify the regimes in which two body abrasion (grooving abrasion) and three body abrasion (rolling abrasion) dominate in the micro-abrasive wear test (also known as the ball cratering wear test). This test is generally con…
The dielectric spectrum of liquid water, $10^{4} - 10^{11}$ Hz, is interpreted in terms of diffusion of charges, formed as a result of self-ionization of H$_{2}$O molecules. This approach explains the Debye relaxation and the dc conductivity as two manifestations of this diffusion. The Debye relaxation is due to the c…
Abstract Mg1−xCuxAl2O4 (x = 0–1.0) and Mg0.7M0.3Al2O4 (M = Mn, Co, and Ni) spinel-type catalysts with high surface areas were prepared. While a Cu-free MgAl2O4 spinel-type oxide showed no catalytic activity for the CO–O2 reaction, the activity was significantly increased by the substitution of Mg (A-site) with Cu, and…
One of the creators of the IDMS (Information Display Measurements Standard) takes the measure of the latest large, curved OLED TVs. In this second article in a series, he looks at reflection performance and makes a discovery that may necessitate a revision to the reflection measurement procedure in the IDMS standard.
The morphology of the microcellular ethylene-octene copolymer (EOC) of both unfilled and conducting carbon black (Ensaco 250G) filled compounds with different blowing agent and carbon black loading was studied using SEM photomicrographs. The systematic variation in the average, minimum and maximum cell size and cell d…
The original ring method and some of its modified versions were examined with a view to developing a straightforward, universal alternative for use by the textile industry. For this purpose, a total of 42 specimens of commercial woven fabrics differing in composition, weave type and aerial weight were studied by using…
The goal of this paper is to determine the best set of parameters such as, glacial acetic acid to ethylenic unsaturation mole ratio (acid/ethylene), hydrogen peroxide to ethylenic unsaturation mole ratio (H2O2/ethylene) and temperature on epoxidation conversion based on experimental results, with respect to time. The…
We have measured the absorption and luminescence spectra of trivalent lanthanide ions (Pr 3+ , Sm 3+ , Tb 3+ , Dy 3+ , Ho 3+ , Er 3+ , Tm 3+ , and Yb 3+ ) in the visible and near-IR wavelength ranges in a POCl 3 -SnCl 4 inorganic solvent. In terms of the Judd-Ofelt model, the oscillator strengths of absorption bands,…
In recent years research in active filter is increased .this paper gives a literature review on active filter. Types of active power and reference current generation technique are classified in time domain and frequency domain method. Then gating pulse generation techniques are described as a linear control technique…
Tanned leather dyeing with Batik Method has been observed with the use of chrome tanned goat leather material. \nTanned dyeing generally produces less variable homogenous color without motives. The dyeing with Batik \nMethod has produced various and patterned tanned leathers. Changes in the use of media from textiles…
The authors performed FACET (Investigation on Mechanism of Faceted Cellular Array Growth) experiments under long duration microgravity on the International Space Station (ISS) in 2010. The temperature and concentration distributions in the melt during the growth were precisely measured with high spatial resolution. Ne…
continuous carbon fiber reinforced silicon carbide (Cf/SiC) ceramic matrix composites were prepared by precursor infiltration pyrolysis and chemical vapor infiltration (PIP-CVI process), in which the honeycomb sandwich structure preforms were fabricated by the three dimensional braid method. In this paper, the microst…
The use of titania (TiO2) nanotubes is becoming one of the most attractive techniques as surface treatment for implants due its combination of morphology (that accelerates osteoblast adhesion and proliferation), bioactivity and possibility of being use as a drug vehicle. Anodic oxidation is one of the cheapest and sim…