Materials Literature
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The mechanisms of structural transitions in a nanocrystal on the basis of intermetallic Ni3Al was studied by means of simulation of the process of the severe plastic deformation. For the structure analysis we used the simplexes of Voronoi-Delaunay, which allow tracing the dynamics of the formation of ordered areas in…
The relief of Sm(Co, Cu)5 single crystal surfaces is investigated by AFM methods. The analysis of surface images of all samples is carried out by using the scanning probe microscope SOLVER P47 software.
Neste estudo foi investigado o uso da adição da escória de forno em argamassa colante tipo ACI, em substituição ao cimento de Portland. Os aspectos físicos e químicos (difração de raios X, fluorescência de raios X, microscopia eletrônica de varredura e análise por dispersão de elétrons) de três composições de escória…
The paper reveals the mechanism of cracking in the "aerated concrete masonry - plaster coating" system, which causes the reduction of cladding’s durability. The temperature deformations in the structure are analyzed. On this basis the theoretical background to optimize the composition and technological parameters of t…
Datele obţinute în urma studierii algoflorei r.Cogâlnic demonstrează diversitatea înaltă a speciilor – 385, cu predominarea diatomeelor, urmate de numeroase şi variate clorofite şi euglenofite. Analiza saprobiologică a algoflorei a demonstrat ponderea înaltă a speciilor beta-mezosaprobe, care determină poluarea modera…
A barbotine design which viscoelastic behavior is optimal for “tape casting” of ceramic tapes based on BaTiO3 of 3 μm thickness is presented. It was proven that the elastic modulus of viscoelaticty is relevant over the final thickness of the tape. These tapes are commonly employed in the manufacture of multilayer cera…
The analytical method for nonlinear problem of steady-state creep solving for pure shear of stochastically inhomogeneous plane on the basis of the second approximation method of small parameter was developed. It is supposed that elastic deformations are insignificant and they can be neglected. Stochasticity was introd…
Clinical studies indicate that amisulpride – the second generation antipsychotic – does not cause any increase in plasma lipid peroxidation. We do not know in what way this medicinal drug affects the activity of the key enzymes of antioxidative protection and low-molecular antioxidants, including the plasma thiol grou…
Experimental studies of the influence of the different forms of the insertions are organized in work in holder boring cutter on quality (the roughness) processed to surfaces. Findings are made about influence concrete design on quality processed to surfaces.
Using the methods of electronic and IR absorption, we have studied the photochemical formation processes of the complexes between tri-, tetra-, and pentavalent uranium and organic ligands when the solutions of UO2(NO3)3*6H2O in dimethyl formamide, UO2(NO3)3*6H2O in dimethyl formamide with the addition of CCl4, and UO2…
The article presents a method of creating heterojunc¬tions based on semiconductors with different lattice types. Substrates manufactured from GaSe and InSe layered crystals were annealed in Zn vapor. This way, n-ZnSe–p-GaSe and n-ZnSe–p-InSe heterojunctions were obtained. The obtained heterojunctions are photo¬sensiti…
In this research the structural steel type (A36) samples were prepared by traditional preparation operations , chemical composition of samples was analyzed , hardness tested, then testing corrosion was achieved for two major cases, a general corrosion case when the corrosive medium (sea water) is static for five days…
The influence of the hot stamping temperature on the structural state of brass 59Cu−3,5Mn−2,5Al−0,5Fe−0,4Ni and the character of blocking rings destruction of the synchronizer of the car transfer change box have been investigated. It is shown that the lack of ductile $\alpha$-phase in the investigated alloy in combinat…
Abstract : This project at Johns Hopkins University serves as the In Vivo Delivery System Development Core of the Phase I Vesicant Therapeutics Collaborative Core Research Program (VT-CCRP). The Mission of this Core is focused on achieving Aim 3 of the Parent Grant at the USAMRICD. This Core aims to develop, evaluate,…
Este artículo estudia la influencia de la transferencia de arco pulsado en el proceso de soldadura por arco eléctrico con gas de protección (GMAW, Gas Metal Arc Welding), sobre la microestructura, utilizando dos composiciones de gas de protección y los modos de transferencia de arco pulsado y corto circuito. Se caract…
In this paper,we present an investigation on the elastic properties of CdSe nanowires by using molecular dynamics simulation.The results show that the Young's modulus and Poisson's ratio of CdSe nanowires will decrease with increasing radius and the Young's modulus of all nanowires studied here are remarkably higher t…
The leading health risk factors for global burden of disease in 2010 were high blood pressure, tobacco smoking and alcohol use, respectively. Globally, 9.5 million lives were lost in 2010 owing to ...
Methods of cresols obtaining and the main directions of their applications were analysed. It was concluded that the synthesis of cresols on the basis of cymenes is most perspective nowadays.
Tension (TW) and opposite wood (OW) of Eucalyptus globulus trees were analyzed for its chemical characteristics and Kraft pulp production. Lignin content was 16% lower and contained 32% more syringyl units in TW than in OW. The increase in syringyl units favoured the formation of β-O-4 bonds that was also higher in TW…
In order to collect Indonesian Nostoc, isolation of soil microflora from several paddy fields in West Java, Bali, andSouth Celebes was carried out. Fast-growing isolates of Nostoc were selected to describe and perform molecular identification using partial sequences of 16S rRNA. The results showed that partial sequenc…