Materials Literature
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A realistic interaction potential model approach by including temperature effects is developed to study phase transition, elastic properties and thermo-physical properties at very high pressures and temperatures. This approach is effectively able to explain the inter-atomic interaction involved at high temperature and…
The Ca(NO 3 ) 2 –Mg(NO 3 ) 2 –H 2 O ternary system is a prospective system for heat storage, and its polythermal phase diagram is the basis for phase change materials design. However, the existing experimental data are dispersed and inconsistent with each other. In this work, we elaborately determined solubility isoth…
A bienzyme system aiming at removal of glucose from isomaltooligosaccharide (IMO) was developed in this study. In this bienzymatic system, the first enzyme (glucose oxidase, GOD) catalyzed glucose to generate H 2 O 2 and gluconic acid, while the second one (catalase, CAT) broke down the undesired H 2 O 2 to water and…
Nanobiotechnology combines biological principles with physical and chemical procedure to generate nanosized particles with specific functions. Recently, a variety of nanoparticles with well-defined size, chemical composition and morphology have been synthesized by using different microorganisms. This work focuses on m…
A case study is presented using eutectic CO2 clathrate crystallization (ECC) as an alternative for eutectic freeze crystallization (EFC): a 3 kg/s MgSO4·11H2O salt production from 17 w% aqueous magnesium sulphate stream. Both processes were simulated using Aspen Plus 7.1® to calculate the major energy requirements. In…
A new method for calculating thermally induced phase distortions in laser ceramics is proposed. The depolarization degree as well as mean and dispersion of the phase incursion of a laser beam after passing through one ceramic element and at the output of the scheme with compensation of birefringence have been calculat…
Three-dimensional (3D) imaging techniques, such as x-ray computed tomography (XCT), serial sectioning method, transmission electron microtomography (TEMT) and 3D atom probe (3DAP), provides 3D internal structures and external form of objects. In order to obtain the 3D images of one object from the synchrotron-XCT (SR-…
The β phase of the ternary alloy Cu-Al-Mn, with bcc structure, displays an interesting variety of long-range atomic ordering and magnetic transitions. In this work, we present a model that allows an accurate reproduction of the measured critical temperatures for alloys with compositions along the pseudobinary line Cu3…
We report the effect of basal-plane stacking faults (BSFs) on X-ray diffraction (XRD) of non-polar (1120) a-plane GaN films with different SiNx interlayers. Complete SiNx coverage and increased three-dimensional (3D) to two-dimensional (2D) transition stages substantially reduce BSF density. It was revealed that the S…
Cubic GaN was grown on GaAs(0 0 1). The GaN layers were found to exhibit residual strain with a measured a-lattice parameter of 4.4990 Å. The GaN layers were grown on GaAs(1 1 0) forming cubic crystal structure with an a-lattice parameter of 4.4947 Å for the LT-GaN buffer layers and a hexagonal structure with an a-lat…
Biomineralization in crustaceans is a remarkably efficient process of ion transport and phase transformation in a spatial template. Here we show the use of this preorganized pathway with waste shrimp shell as both a phosphate source and template for the mineralization of UO 2 2+ to uramphite. By using the physical str…
Assessment of the performance of single-junction hydrogenated amorphous silicon (a-Si:H) p-i-n configuration solar cells has been developed with a combination of real-time spectroscopic ellipsometry (RTSE) and current-voltage (I-V) measurements. For each layer, RTSE measurements enabled the determination of thickness…
The increasing prosperity of the photonics field has hastened the development of several sub-disciplines, with the aim to create advanced photonic devices, produce photonic circuits and eventually enable all-optical communication. This development has resulted in the demand for micro-nano-sized functional units with s…
The aim of the current study was to explore the application of microcarrier technology in the rapid amplification and chondrogenic differentiation of human adipose‑derived stem cells (ADSCs) in a rotating bioreactor. Human ADSCs were cultivated with Cytodex 3 microcarriers in a rotary cell culture system (RCCS), and u…
Homogeneity regions of ZnTe, CdTe, CdSe, and CdS were determined by the direct physic‐chemical “extraction” technique combined with the high temperature equilibrium freezing technique. The general scheme of homogeneity range for all studied compounds has been constructed according to which “wurtzite‐zincblende” transi…
Mycobacterium tuberculosis and Human Immuno-Deficiency Virus (HIV) have a high prevalence in Africa. The development and spread of drug resistant tuberculosis is a serious problem which is exacerbated by tuberculosis (TB) co-infection in HIV patients. Traditional medicinal plants like Annona muricata and Artemisia afr…
Direct conversion of CH4 to syngas (H2 and CO) via CH4 partial oxidation was investigated using a narrow-gap co-axial dielectric barrier discharge reactor. Partial oxidation is initiated by electron impact dissociation of CH4, while complete oxidation is suppressed due to low temperature condition (200–400 °C): CH4 co…
The linear and nonlinear optical properties of TbCa4O(BO3)3 (abbreviated as TbCOB) single crystals were investigated for the first time. The refractive indices of TbCOB at several wavelengths were measured by using the minimum deviation method and the parameters of Sellmeier's dispersion equation were determined from…
Electrical breakdown of the treatment chambers under repetitive high-intensity pulses impedes the industrial application of pulsed electric field (PEF) technology. In this paper, phenomenon and laws of electric discharges in the PEF treatment chambers were studied. The experimental results indicate that temperature in…
BACKGROUND: Because of the difficulties involved in learning and using 3D modeling and rendering software, many scientists hire programmers or animators to create models and animations. This both slows the discovery process and provides opportunities for miscommunication. Working with multiple collaborators, a tool wa…