Materials Literature
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Tujuan dari penelitian adalah untuk mendeskripsikan kekuatan tarik komposit serat batang pisang akibat perubahan temperatur saat pengujian yang dicuci menggunakan cairan kimia K (OH) 5% selama 1 jam bertujuan untuk meningkatkan kekuatan komposit yang bermatrik vinylester repoxy serta mendeskripsikan jenis patahan yang…
本研究利用鎢極惰性氣體遮護電弧銲接法(Gas Tungsten Arc Weld, GTAW)的方式將鎳基填料(Inconel 52 & Inconel 82)添加至鎳基超合金(Incoloy 800H & Incoloy825)，期望在高溫下增強鎳超基合金之抗熱龜裂性之特性。爾後使用點銲式可調應變試驗(Spot Varestraint Test)評估銲接性，觀察鎳基超合金在高溫之下外加應變產生裂紋之狀態，並探討組成元素對熱龜裂敏感性的高低。 結果顯示銲接完畢之後皆為沃斯田鐵組織且並無裂紋產生，鎳基填料合金之固液溫差值為 800H-82>800H-52>825-52>825-82。點銲式可調應變試驗之後，鎳基填料合金銲接熱龜裂敏感…
Stress relaxation can strongly influence the shape-memory capability of polymers. Recently a modified Maxwell-Wiechert model comprising two Maxwell units and a single spring unit in parallel has been introduced to successfully describe the shape recovery characteristics of amorphous polyether urethanes. In this work w…
[Excerpt] Introduction: Spinal Cord Injury (SCI) remains one of the most devastating diseases of the Central Nervous System, for which there is still no effective treatment. Multidisciplinary approaches such those presented by tissue engineering concepts hold great promise for SCI treatment. In this sense we previousl…
The wear behavior of alumina particulate reinforced A332 aluminium alloy composites produced by a stir casting process technique were investigated. A pin-on-disc type apparatus was employed for determining the sliding wear rate in composite samples at different grain size (1 µm, 12µm, 50 nm) and different weight perce…
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This study was conducted to analyze the influence of bagasse ash utilization as filler with a variation of the collision of the value characteristics of asphalt concrete mixtures. Filler used is ash bagasse from PT. PG Rajawali 1 unit. New Krebet, District Lawang, Malang. Characteristics mix includes grades Stability,…
When the diameter of a microscopic bubble is less than 50 μm, it is referred to as microbubble (MB). The properties of MB are different from those of bubbles whose diameter is more than 50 μm. For instance, MB has the negatively charged surface and the self-pressurization effect. Because of these properties of MB, it…
The mystery of Goss selective abnormal grain growth (AGG) in Fe-3%Si steel has long remained unsolved since its discovery by Goss in 1933. Similarly, the mechanism of secondary recrystallization, which is commonly observed in many metallic systems, has long been a puzzle. Here, attempts to solve this puzzle are review…
The results of mathematical modeling configuration shrink looseness in the head part of the ingot quiet steel. A distinctive feature of the developed model is that selection of the resulting coefficients were calculated using the experimental methods used to study the microstructure of the axial templates warhead indu…
Gingival recession is defined as the apical migration of the gingival margin in relation to the cementum enamel junction, exposing the root surface. the root coverage is concerned primarily with the repositioning of the gingival margin level of cementum enamel junction and retrieval of clinical attachment level of gin…
Most processes in biology and medicine occur over different but inter-connected spatial and temporal scales – from genes to cells to tissues to organs to populations. Known as one of the “hallmarks of cancer”, cancer invasion is a complex “multi-scale” phenomenon involving many inter-related genetic, biochemical and c…
Las cubiertas orgánicas, son la opción más empleada para la protección de estructuras metálicas. Los fosfatos han sido los principales sustituyentes de los inhibidores tradicionales empleados en la elaboración de pinturas anticorrosivas, aunque también causan un negativo impacto al medio ambiente. Actualmente, los ion…
Composite materials are kind of materials that are formed by mixing together at least two or more single type of materials. This type of materials can be separated into two branches as matrix and support elements. Matrix type acts as connective material while support elements provide resistance on the material. It is…
We characterize the current-carrying capacity (CCC), or ampacity, of highly-conductive, light, and strong carbon nanotube (CNT) fibers by measuring their failure current density (FCD) and continuous current rating (CCR) values. We show, both experimentally and theoretically, that the CCC of these fibers is determined…
O mastoparano (INLKALAALAKKIL) e um tetradecapeptideo α-helice e anfipatico obtido do veneno da Vespula lewissi. O casoparano e um peptideo cationico (INKKI) isolado a partir da hidrolise da β-caseina bovina e apresenta motivo homologo ao matoparano. O objetivo deste trabalho foi avaliar o efeito antitumoral “in vitro…
Study of structural changes occurring in the surface layer modified by ion-beam irradiation was carried out by means of optical, scanning and transmission electron microscopy. It was shown that irradiation induces the structure modification not only in the surface layer, but along the entire cross section of 1 mm thic…
A non-enzymatic glucose sensor was fabricated from Cu-doped carbon nanofibers (CNFs), which were prepared from polymer solution of polyacrylonitrile (PAN), dimethylformamide (DMF), and copper sulfate (CuSO4) by electrospinning. The prepared samples were analyzed by X-ray diffraction (XRD) to confirm their crystal stru…
The mechanisms and the pathways whereby exercise training increases heart vascularization will be reviewed; neo-angiogenesis involves the formation of new capillaries, which typically occurs with the mechanism of intussusception. In addition, physical exercise favors neo-vasculogenesis, by inducing the mobilization of…
The structure and composition of carbide phases in the GS6U alloy are studied. The carbides in the metal extent are shown to arrange in the form of plates causing a low mechanical properties of the alloy. An explanation of the reasons for the formation of such morphology carbide phases is proposed. The technique of im…