Materials Literature
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Cell adhesion sites, which play essential roles in activating cellular functions, such as signal communication, embryonic morphogenesis, and cell proliferation [1] have been intensively studied through microscopic observations. Although fluorescence microscopy is useful for these imaging, fluorescent labeling potentia…
Precipitates refinement of hypereutectic Al–Si alloy is effective for improvement of its mechanical properties. Our original severe plastic deformation process named Compressive Torsion Process is effective for not only grain refinement but also precipitates refinement. In the present work, Compressive Torsion Process…
In this study, we investigated an origin of low reproducibility of blue phosphor (CaMgSi2O6:Eu) by means of XRD, SEM, cathodoluminescence, photoluminescence, and thermoluminescence. There were no changes in the crystal structure, particle size, surface morphology, and cathodoluminscence property. On the other hand, it…
benzopyrano- [3,4-b][1]benzopyran has been synthesised according to eight-steps synthesis. The target compound was obtained using a synthetic route based on two key cyclisations steps including the platinum chlorides-catalysed of alkynones and intramolecular oxo-Michael addition.
Pure titanium (Ti) powder together with magnesium (Mg) powder was mechanically alloyed (MAed) by using a vibrational ball mill, and the MAed powders were consolidated into bulk materials by spark plasma sintering (SPS). Properties of the MAed powder and bulk materials were evaluated by hardness measurements, X-ray dif…
Two kinds of tetrapod-like zinc oxide nanostructures were fabricated using chemical vapor deposition method under argon and oxygen mixed ambient condition.The source materials were pure zinc powders.No catalyst was used during reaction.X-ray diffraction,scanning electron microscopy,transmission electron microscopy and…
In a protein environment, proton transfer events can be initiated by configurational changes of pigments (e.g., trans-cis isomerization) or changes in the redox states of cofactors upon photoactivation. These changes lead to alteration of pKa of hydrogen-bond (H-bond) donor and acceptor moieties. In particular, when t…
Four Cu(II) and two Ni(II) complexes of azo carboxylate ligands were synthesized and characterized by conductivity ,UV-visible and Infrared spectroscopy. The comparison of IR spectra of uncoordinated ligands and their metal complexes indicated that ligands were coordinated to the metal through carboxylic oxygen atom i…
An Anomalous Surface Scattering(ASS) phenomenon was researched during the measurement of surface roughnesses for a smooth surface by a grazing X-ray scattering method.Firstly,an experimental facility based on an X-ray diffractometer were introduced.Several kinds of samples with different surface roughnesses were measu…
The lithium nickel cobalt vanadate (LiNi0.2Co0.8VO4) was synthesized by using sol-gel method and the compound was characterized by X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM) and galvanostat charge/discharge studies. The XRD pattern of the material was assigned to cubic structure of…
Suppression of the reaction between molten Ti and the investment material could limit the formation of the alpha-case layer, which influences the mechanical properties of the casting. This study investigated the influence of the investment material on the composition of the alpha-case layer and the corrosion behavior…
Atomistic damage near the Si surface by nanoindentation is investigated using atomically flat Si surfaces and ultralow dissolved-oxygen water (LOW) treatment. No characteristic phenomena of plastic deformation such as pop-in or pop-out events are observed in the load-displacement curve during nanoindentation for a max…
This letter proposes a compact cascaded MMI-based polarization beam splitter on silicon-on-insulator, which demonstrates 20 nm bandwidth for transverse-electric polarization and 35 nm bandwidth for transverse-magnetic polarization with extinction ratio more than 20 dB experimentally.
Periodic Mesoporous Organosilicas (PMOs) offer the opportunity to modify the organic moieties in their framework to create different functionalities. In this report, we will incorporate new functional groups through a well-known organic reaction, the “Diels-Alder reaction”. Although it was firstly reported by Kondo et…
Cyclic polymer is a kind of new polymeric material,which exhibits unique properties compared with linear polymers and has broad application prospect.However,the synthesis method is intricate because of its inherent complex structures.Click reactions,which coined by Sharpless,with the characteristic of high efficient,r…
The electronic and optical properties of ZnO/GaN-core/shell heterostructures are studied by using the first-principles method based on density functional theory.The results show that the top of valence bands and the bottom of conduction bands for the and crystal plane of heterostructures are mainly contributed by the…
Исследована тройная эвтектика состава (мол. %): NaF(33) + LiF(53) + NdF3(14) в жидком и кристаллическом состояниях с использованием дифференциального термического, рентгенофазового и высокотемпературного рентгенографического методов. Показано, что вплоть до температуры плавления фазовые превращения в системе отсутству…
Липидные тельца (ЛТ) динамические клеточные органеллы, вовлеченные в различные процессы клеточного метаболизма и внутриклеточной сигнализации. Их ядро состоит, главным образом, из триацилглицеринов (ТАГ) и эфиров холестерина (ЭХ). Работа посвящена использованию проточной цитометрии для количественного анализа измене…
New derivatives of tetraphenylporphyrin containing in a -position of the macrocycle a styryl fragment attached by di-and pentamethylene spacers were obtained from the Cu II complex of 2-formyl-5,10,15,20-tetraphenylporphine using Wittig reaction with consequent reduction of the exo-cyclic double bonds by diimide.
The purpose of this study is to understand the fundamental cooling characteristics of room temperature magnetic refrigerator using an active magnetic regenerator (AMR). The AMR is one of the regeneration cycles and has four sequential processes: adiabatic magnetization, heat exchange fluid flow, adiabatic demagnetizat…