Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The technical and economic growth of the twentieth century was marked by evolution of electronic devices and gadgets. The day-to-day lifestyle has been significantly affected by the advancement in communication systems, information systems and consumer electronics. The lifeline of progress has been the invention of th…
Mesenchymal stem cell (MSC) transplantation has attracted much attention in myocardial infarction therapy. One of the limitations is the poor survival of grafted cells in the ischemic microenvironment. Small interfering RNA-mediated prolyl hydroxylase domain protein 2 (PHD2) silencing in MSCs holds tremendous potentia…
This paper presents the characteristic analysis and experiment of surface-mounted type variable-flux permanent-magnet machines considering magnetization and demagnetization based on electromagnetic transfer relations. For this purpose, we derive the analytical solutions for the magnetic fields generated by the magneti…
In the permanent magnet (PM) machines, the Halbach PM (HPM) machine can offer higher performance than others, while they require more rare-earth PMs. Due to the high price of rare-earth PMs, such as NdFeB and SmCo magnets, the cost has become a serious drawback of the HPM machine. To overcome this disadvantage, a new…
Cast nickel aluminide-based eutectic alloys of the equimolar composition NiAl-Mo (Cr, V, Nb) alloyed with boron and hafnium are fabricated by centrifugal SHS metallurgy. It is established experimentally that the acceleration range of 150–200 g is the most manufacturable. It is shown that the convective motion of the m…
Changes in microstructure and technical properties of vitrified ceramic samples, prepared from kaolinitic-clay and feldspar-rich raw materials from Cameroon, against feldspar content, firing temperature and soaking time were investigated by X-ray diffraction and scanning electron microscope, and using full factorial d…
The fungicidal activity of some chitosan samples and their nanostructured systems with copper was studied. The samples of Bombyx mori chitosan and its nanostructured systems with copper were found to inhibit growth and development of phytopathogenic fungi Fusarium solani 169 and Verticillium dahlie 57. The growth inhi…
Taking the interacting potential as the sum of Coulomb and proximity potential, 34 Si accompanied cold ternary fission of 242 Cm has been studied with fragments in the equatorial and collinear configuration. The cold valley plots (plot of driving potential versus mass number of fragments) and the calculations on the y…
During a heart attack, the heart's oxygen supply is cut off, and cardiomyocytes perish. Unfortunately, once these tissues are lost, they cannot be replaced and results in cardiovascular disease-the leading cause of deaths worldwide. Advancements in medical research have been targeted to understand and combat the death…
We studied the relationship between the magnetic anisotropy properties and crystal structure of an artificial B2 state of Fe0.5Co0.5epitaxial films on a Rh(001) seed layer with a tetragonal distortion structure, which exhibited large perpendicular uniaxial magnetic anisotropy over a wide range of thicknesses and c/a r…
We have studied the field- and current-induced domain wall (DW) motion in perpendicularly magnetized Tb/Co multilayer wires with asymmetric interface structures. We found that both up/down and down/up walls of a domain move at the same velocity. In the current-induced case, the DWs were moved along the current flow, n…
This paper discusses how anodic pulses and periodic current reversion influence electrodeposition. Depending on the involved metal and electrolyte, very different effects can be observed and taken advantage of. The Wagner number, Wa, describing the current distribution is shown to be useful for predicting the throwing…
OBJECTIVES: This study highlights xylanase overproduction from Bacillus mojavensis via UV mutagenesis and optimization of the production process. MATERIALS AND METHODS: Bacillus mojavenis PTCC 1723 underwent UV radiation. Mutants' primary screening was based on the enhanced Hollow Zone Diameter/ Colony Diameter Ration…
We report the fabrication and characterization of magnetic polymer nanocomposites for a wide range of sensing applications. The composites are made of magnetic nanowires (NWs) incorporated into polymers such as polydimethylsiloxane (PDMS) or UV sensitive SU-8. The developed composites utilize the permanent magnetic be…
We study the spectral properties of the two-dimensional Dirac operator on bounded domains together with the appropriate boundary conditions which provide a (continuous) model for graphene nanoribbons. These are of two types, namely, the so-called armchair and zigzag boundary conditions, depending on the line along whi…
A thermal explosion and self-propagating high-temperature synthesis in low-calorific SiO 2 -Al mixtures subjected to preliminary mechanical activation are obtained. Results of x-ray and electron-microscopic investigations of the microstructure and phase composition of activated mixtures and reaction products are repor…
Environment and situation awareness are key factors to effectively work or even to survive in harsh environment. Over recent decades, the need to adequately protect the human in various dangerous situations has forced the development of clothing industry in the direction to provide high innovative products, and equip…
We present the elastic and dynamical properties of YB 4 from first-principles calculations. It is found that the optimized lattice constants and bulk modulus (182 GPa) agree well with the experimental data. The structural stability of tetragonal YB 4 is confirmed by the calculated elastic constants and phonon spectra.…
In this work, cluster tool (CT) Plasma Assisted Molecular Beam Epitaxy (PA-MBE) grown AlGaN/GaN heterostructure on c-plane (0 0 0 1) sapphire (Al2O3) were investigated by High Resolution X-ray Diffraction (HRXRD), Room Temperature Raman Spectroscopy (RTRS), and Room Temperature Photoluminescence (RTPL). The effects of…
The work reports results of investigations on the properties of pitches produced from the anthracene fraction of coal tar by means of the air-blowing and thermal cracking methods. For comparison, samples of coal tar pitch and air-blown pitches were used. The following parameters were determined: softening point, conte…