Materials Literature
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Slime water is a highly concentrated micro-solid-liquid suspension-dispersion system which is mainly consisted of kaolinite and other clay minerals. The existence of these fine clay particles is one of the reasons why slimes water is difficult to clarify. In this work, the adsorption thermodynamics, kinetics and mecha…
Local thermal equilibrium (LTE) is a common assumption used in thermal modeling of solid oxide fuel cells (SOFCs). However, its validity has not been fully verified. To examine the validity of the LTE assumption, a thermal model has been developed to evaluate the local thermal non-equilibrium effect of SOFC electrodes…
Plasma electrolytic oxidation(PEO) coatings on AZ31 magnesium(Mg) alloy were developed using the aqueous solution with alkaline silicate and sodium hydroxide as a base electrolyte system.The effects of cerium(Ce) nitrate and lanthanum(La) nitrate additives on the voltage response,microstructure,compositions and corros…
Ba- ，做 La 、做 Ag 的多晶的 Ca2.9M0.1Co4O9 (M=Ca， Ba， La， Ag ) 热电的体积样品经由合成方法由火花血浆 sintering 跟随了的柠檬酸盐酸大音阶的第五音胶化被准备技术。体积样品关于他们的阶段作文，谷物取向以及微观结构被描绘并且分析。高温度体积样品的热电的运输性质详细被学习。所有体积样品被发现是有修改身体质地的 single-phased。电的抵抗力由于搬运人集中修正被调制，然而，搬运人运输过程没被影响；Seebeck 系数同时被败坏。全部的热传导性显著地被减少，由于声子减少热电导率。Ba- ， La- ，和做 Ag 的体积样品的热电的性质被优化，并且做 Ba 的 Ca2.9Ba0.…
Based on the density functional theory (DFT), and using the first-principles plane-wave ultrasoft pseudopotential method, we set up models for a pure ZnO and four different concentrations of Ga-doped ZnO, and the geomertry optimization for the four modes was carried out. The total density of states (TDOS), the band st…
In this paper, gem diamond synthesis is systematically studied using the multiseed method in China-type cubic high-pressure apparatus. High-quality Ib diamond crystals are synthesized in a growth cell with 3-5 diamond seeds, by adjusting the growth cell assembly and investigating the pressure and temperature regions o…
基于周期性密度泛函理论研究了N/Fe共掺杂对锐钛矿TiO2(101)面的修饰作用. 计算了铁替位单掺杂TiO2(101)面及晶体内部后, 晶体结构变化及形成能. 通过形成能的比较发现, Fe从晶体表面向体内迁移时受到势垒阻碍作用. 同时, 对不同位置表面N/Fe近邻共掺杂晶体形成能的比较, 得出了表面共掺杂的最稳定结构. 通过对电子结构及态密度的分析发现: 表面共掺杂态中, N/Fe共掺杂可改变TiO2(101)面的电子结构, 并使TiO2由半导体性向半金属性转变.
Effects of the width of direct correlation function peak and the peak at k=0 on the phase diagram for the two-mode phase field crystal model are examined carefully. The results indicate that increasing the width of direct correlation function peak will expand the stability region of the ordered phases; however, increa…
In this paper, we design and fabricat a polarization-independent dual-directional metamaterial absorber. The simulation results indicate that the absorber keeps good absorbing performance in a wide incidence angles for both transverse electric and transverse magnetic polarization, and that the high absorption is due t…
New Hofmann-Td-type complexes in the form of M(creat)2M'(CN)4 (M = Mn and Cd; M' = Zn, Cd and Hg; creat = creatinine = 2-amino-1-methyl-5H-imidazol-4-one) were prepared in powder form and their FT-IR (4000-400 cm -1 ), far-IR (400-50 cm -1 ), FT-Raman (4000-50 cm -1 ) spectra and elemental analyses are reported. Creat…
We present an analytical approach that adequately describes the nonlocal optical response for plasmonic nanowire metamaterials. The technique provides an insight into the origin of the additional wave and allows implementation additional boundary conditions.
Models of the dislocation interaction with discrete breathers (DB) are considered. Large amplitude oscillations of atoms about their equilibrium positions in the lattice cause time-periodic modulations of the potential barriers for the dislocation unpinning from obstacles, which can facilitate plastic deformation seve…
Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was used to examine the reaction rate of bis(triethoxysilylpropyl)tetrasulphide in silica-filled rubber. The major pyrolysis product of bis(triethoxysilylpropyl)tetrasulphide, which is used as a silane coupling agent, was found to be an allyltriethoxysilane. Al…
If various types of dissolved heavy metals flow into the water system, they cause serious environmental problems such as critical hazard to the life of creatures. Even a very small amount of heavy metals exists in the water system, can enter and accumulate in the human body through various channels such as food chains…
Bumbuna Falls. Altogether 65 taxa, belonging to 31 genera are described. About 32 dubious Holarctic taxa, suspected to be new to science, are noted as “cf. ”, expecting a differential diagnosis later on after further SEM observations.This is the case of very interesting taxa belonging to the genera Eunotia, Luticola,…
I dispositivi DTR (Dynamic Thermal Rating) permettono un miglior utilizzo degli elettrodotti esistenti, in un’ottica di ottimizzazione dell’infrastruttura elettrica.
The effect of Pre-treatment condition has been studied for extracting gelatin from Beluga Sturgeon fish skin with acetic Acid (0.2 N and 2.0 N) and NaOH (0.2 N and 2.0 N) on gelatin extraction yield, melting point, viscosity and SDS-PAGE electrophoresis pattern of the solution. The results showed that extraction yield…
Activated carbon (AC) supported Fe3O4 nanoparticle-based composites (CFFs) have been prepared by mixing AC with a Fe3O4 ferrofluid followed by drying. These composites display a unique combination of electrical and magnetic properties along with nanoporosity. The structural, morphological and magnetic properties of th…
The performance of the plasma facing components (PFC) and materials in fusion reactor DEMO are fundamental issues affecting the ultimate technological and economic feasibility of fusion power. Many factors influence the choice of a functional and structural material in a fusion reactor. Component lifetime is mainly li…
Deformation can lead both to increase, and to decrease the values of the magnetic susceptibility of alloys based on Ni<sub>3</sub>Al. The difference in the behavior of alloys takes place due to the different structure of the alloy as a result of the deformation. The formation of a nanocrystalline structure in intermet…