Materials Literature
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Considering the skyrocketing prices of fabrics in Egypt, and in consequence the final product price, especially children clothes ( this paper subject ) , achieving the requirements especially in the fabric , and maintaining a suitable price for the wide range of people , became difficult. Based in the previous introdu…
Throughout this study, functional, aesthetic, and dimensional stability properties of knitted blended fabrics were experimentally presented. An experimental work was introduced to examine. In order to investigate the loop length of the knitted fabrics and the polyester blending ratio on bursting, air permeability, pil…
Турчанин М. А., Древаль Л. А., Агравал П. Г., Довбенко А. И., Ильенко С. М. Новые направления термодинамических исследований высокоэнтропийных сплавов // Вестник ДГМА. – 2019. – № 2 (46). – С. 47–50. Выполнено термодинамическое исследование высокоэнтропийных сплавов (ВЭС) системы Co–Cr–Cu–Fe–Ni. С этой целью была испо…
本稿では，ブナの圧密化前後の硬さや結晶化度等の物性を評価し，スギを用いて行った既報の研究のそれぞれと比較検討した。その結果，ブナの硬さは圧密化によって高くなり，スギの晩材と同様の物性変化を示すことが分かった。これは圧密化前の密度が関係していると考えられる。また，ブナの結晶化度は圧密化によって高くなり，圧密化前後の値は晩材よりも早材に近い値を示すことが分かった。
Epitaxial strain engineering of the metal-insulator transition temperature (TMIT) in RNiO3 thin film attracts nowadays extensive attention. Various concrete examples have been reported but the precise mechanism behind the monitoring of TMIT remains elusive.1-6 Here, combining first-principles calculations and Landau t…
The objective of this paper is producing an active carbon based on wasted biomass, including chemical activation with KOH. Activation with KOH of carbonaceous materials is considered to be an extremely promising method of producing "HighTech" activated carbon. The texture parameters of the obtained activated carbon ar…
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Plasma etching processing plays a key role in integrated circuits (IC) fabrication technology. For exploring the optimization scheme of etching process, a novel three-dimensional (3D) cellular model with improved parametric equation group is proposed to study the evolution effect in etching processing. The dimensional…
This work has explored the possibility of using x-ray photoelectron spectroscopy (XPS), for studying the chemical properties (i.e. atomic ratios and oxidation states) of several metal-insulator-metal (MIM) structures. This thesis aims to better understand the operation mechanism that imposes a reversible change in the…
Le but de cette thèse est d’étudier les structures obtenues à partir des groupes de réflexion finis. Ce travail consiste en quatre articles publiés, un article soumis et un article en préparation dont les résultats partiels constituent un chapitre de cette thèse. Dans le premier article, nous présentons une réduction…
Abstract This paper presents the most used processes for the synthesis of hydroxyapatite from aqueous solutions: chemical precipitation, the hydrothermal process and the sol-gel method. The experimental part includes the synthesis of hydroxyapatite by chemical precipitation. The obtained results confirm the obtaining…
Objective of the study was to measure effect of bamboo species and the types of particles to the physical properties of cement board. Type of wood particles used in cement board were sawdust, flake, and mixture of flake and sawdust. Factorial experiment in randomized complete design was applied in the study with two f…
Abstract 0.88Pb(Zr0.52Ti0.48)O3 – 0.12Pb(Mn1/3Sb2/3)O3 – 0,02 at%E piezoelectric ceramics, with E = Pr3+ were synthesized by using a conventional method, namely a solid state reaction technique. X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) were employed for the structural and microstructural investig…
Acute, chronic, refractory and iatrogenic wounds caused by various factors are very commonn in the clinic, often seriously affecting the quality of life of patients and increasing the burden of economy and social medical resources. With the progress of preparation technology and carrier materials related to cell suspe…
Insulation system is one of the most critical parts in electrical equipment, where it often becomes the factor to electrical failures. Therefore, in order to learn the condition of an electrical equipment, it can be simply monitored by its insulation system condition. Partial discharge (PD) detection is one of the mon…
Coal fired-power plant has waste heat from exhaust de-aerator. Changes in coal-fired steam power plant operation cause change in deaerator temperature. The operating of coal-fired steam power plant about 150-300MW. Exhaust de-aerator temperature about 145°-170°C. The thermal energy can be recovered as electricity by u…
유기물질, 전이금속 및 유기-금속 구조체(MOFs)를 기반으로 하는 촉매들이 유기인 계열 독성물질들을 분해하고 제거하는데 효과적임이 보고되어 왔다. 최근 20년간 독성물질 분해연구를 위해 다공성 MOFs들이 응용 목적에 맞게 디자인되고 합성되었다. Zr6 기반의 금속노드와 유기결합체를 가지는 MOFs들은 세공크기, 공극률, 표면적, Lewis acidic 자리 그리고 열적 안정성 등과 같은 기본구조내의 변형이 가능하기 때문에 화학작용제, 살충제 및 제초제를 제거하는 촉매로 널리 사용되어왔다. 본 리뷰에서는 구조, 안정성, 입자크기, 연결된 리간드 수, 유기 기능기…
Upon self-assembly, block copolymers (BCP) can form a variety of well-ordered nanofeatures, that makes them prime candidates for use in a wide range of applications, and for alternative approaches to traditional “top-down” processes in the microelectronic industry. Self-Assembly of block copolymer thin films is widely…
Neste trabalho, o objetivo é demonstrar um método de reconhecimento de padrões, formado pelo ângulo, da força (N) e deformação (mm), do ensaio mecânico das fibras de cana de açúcar e bambu mercerizadas com resina epóxi liquida bicomponente. A metodologia se baseia em um algoritmo, que utiliza um ângulo referencial e c…
Oxide coatings are formed on die-cast AZ91D Mg alloy through an environmentally friendly plasma electrolytic oxidation(PEO) process using an electrolytic solution of NaAlO2, KOH, and KF. The effects of PEO condition with different duty cycles (10 %, 20 %, and 40 %) and frequencies(500 Hz, 1,000 Hz, and 2,000 Hz) on th…