Materials Literature
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Abstract Currently many methods are available to obtain a junction profile of semiconductor devices, but the conventional methods have drawbacks, and they could be obstacles for junction profile analysis. This paper introduces an anodic wet etching-based two-dimensional junction profiling method, which is practical, e…
Within density functional theory, establishing the equations of states of YNi in two different controversial structures in the literature, leads to determine the orthorhombic FeB-type as the ground state one with small energy difference. For YNiH3 and YNiH4 hydrides crystallizing in the orthorhombic CrB-type structure…
Abstract This article discusses the three different modeling approaches for grain structures formed during solidification of metallic alloys: direct modeling of dendritic structure, direct modeling of grain structure, and indirect modeling of grain structure. The main construction bases, the scale at which it applies,…
Abstract Electronic structure calculations have been performed for the Co-phthalocyanine molecule using density functional theory (DFT) within the framework of Generalized Gradient Approximation (GGA). The electronic correlation in Co 3d orbitals is treated in terms of the GGA+U method in the framework of the Hubbard…
The purpose of this study is to investigate the effect of adding different amounts(2, 4, 6% of Cu) on properties and microstructure of low carbon steel .Also studythe effect of the same amounts of Cu with half amount of Ni(1,2,3%Ni) are addedon properties of low carbon steels. All these alloys(Fe-Cu,Fe-Cu-Ni) appear a…
Abstract For a wide range of new or better products, solidification processing of metallic materials from the melt is a step of uppermost importance in the industrial production chain. This article discusses the casting and solidification of molten metallic alloy along with the application of low-gravity platforms and…
(1) The niobia doped PWR fuel (test specimen) did not fail below 260 cal/g defined as the failure threshold for RIA. (2) The fuel failure occurred by the cladding melt-brittle mechanism irrespective to the doping. (3) The test specimen caused a significant axial PCMI to the magnitude of 18%. (4)Above 276 cal/g, the te…
Makalah ini menguraikan hubungan antara laju dosis serap air dengan lapangan radiasi untuk berkas elektron dengan energi nominal 10, 12 dan 15 MeV dari pesawat pemercepat linier medik Elekta nomor seri 151614 milik Rumah Sakit Adam Malik, Medan. Pengukuran persentase dosis di kedalaman dilakukan di dalam fantom air me…
Nano-particle production potential of different microorganism under varying chemical environment. In: The second IASTED International conference on Nanotechnology and Applications, November 1-3, Cambridge, Massachusetts, USA.
We consider the evolution of sessile droplets of a nonvolatile perfectly wetting liquid on differentially radially heated solid substrates. The heating induces thermocapillary Marangoni forces that affect the contact line dynamics. Our experiments involving a particular heating pattern reveal that the Marangoni effect…
A well-known problem encountered while using method for the detection of DC-bus current in order to reconstruct three-phase-currents is the short DC pulse duration. In order to increase the pulse duration, several PWM modifying methods have been proposed. “Half Pulse Shift method (HPS)“ is one of the promising methods…
Objective To explore the impact of Gd-DTPA, a contrast agent, on proton magnetic resonance spectroscopy analysis of glioma. Methods MRI scans were performed in 28 patients with glioma ( 13 Ⅲ grade anaplastic astrocytoma and15 Ⅳ grade glioblastoma), includingT1WI axial and sagittal scans,T2WI axial, T2WI axial FLAIR sc…
The suppression of spider mite, Tetranychus urticae Koch populations by three different life styles phytoseiid predatory mite species, Phytoseiulus macropilis (Banks), Amblyseius californicus (McGregor) and A. cucumeris (Oudemans) was examinedto investigate their efficiency of each species either single, combined with…
Abstract First-principles calculations have been used to investigate hydrogen adsorption on alkali atom doped B 36 N 36 clusters. The alkali atom adsorption takes place near the six tetragonal bridge sites available on the cage, thereby avoiding the notorious clustering problem. Adsorption of alkali atoms involves a c…
Abstract The aim of this paper is to study the mechanism by which clumps of some powdered materials break up and disperse on a liquid surface to form a monolayer of particles. We show that a clump breaks up because when particles on its outer periphery come in contact with the liquid surface they are pulled into the i…
Bu çalışmada, çift çekirdekli siyano köprülü, [Cu(1-meim)2Ni(m-CN)4] (1), [Zn(1-meim)2Ni(m-CN)4] (2) ve [Cd(1-meim)2Ni(m-CN)4] (3) polimerik kompleksleri sentezlendi. Sentezlenen komplekslerin yapı ve özellikleri, sırasıyla elementel analiz, titreşim (kırmızı altı ve Raman) spektroskopisi, X-ışınları kırınım ve termal…
This study develops tight-fitting torso patterns for performance garments by taking into account the skin deformation generated directly from a 3D scan during arm movements. The skin deformation caused during the arm movements was scanned after scanning the skin surface stamped with a circle. To create a torso pattern…
Ionomers--polymers containing a small fraction of covalently bound ionic groups--have potential application as solid electrolytes in batteries. Understanding ion transport in ionomers is essential for such applications. Due to strong electrostatic interactions in these materials, the ions form aggregates, tending to s…
We experimentally demonstrate over 2 orders of magnitude increase in the room-temperature coherence time of nitrogen-vacancy centers in diamond by implementing decoupling techniques. We show that equal pulse spacing decoupling performs just as well as nonperiodic Uhrig decoupling and also allows us to take advantage o…
Kinetic equation (k. e.) of CaCO3 precipitation from calcium-hydrocarbonate systems (CHCS) has been formulated. The form of k.e. and the processes in CHCS depends upon pH within 6<pH<9.5 k. e. is expressed by bicarbonate index. It has been shown that the process of total crystallization from beginning to the end is co…