Materials Literature
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The molecular structure of (2,6- i Pr2C6H3)N (quin)2 (1) and both the methanol and toluene solvates of its copper complex (Cu{(2,6- i Pr2C6H3)N(quin)2}2)BF4, 2� MeOH and 2.2(C6H5Me), respectively, have been deter- mined. The quinolyl rings in 1 adopt anti-syn (CAr-N-C- Nquin) conformation as a result of p-p stacking.…
Many plant species found in different regions, collected randomly or by following leads supplied by local healers in geographical area are found, to be altered in their phytochemical constituents. In the present study certain plant species were collected from different localities (geographical areas) of Agra city and…
HCCI combustion is expected to enable the internal combustion engines to operate with higher thermal efficiency and cleaner exhaust emissions compared to conventional combustion systems. However, a difficulty in ignition timing control is a major problem preventing it from practical applications to automobiles. Adjust…
Tribological properties of a nano-eutecticFe1.87C0.13 alloy were investigated under distilled-waterlubrication against AISI52100 steel ball for various appliedloads and sliding speeds. For comparison, the tribologicalbehavior of annealed coarse-grained Fe1.87C0.13 alloy wasalso examined under the same testing conditio…
Analysis of activation of solution and diffusion processes under the interaction between melt and solid is used. Dependence of the original material concentration on temperature, time, melt and solid area of contact, viscosity and melt volume is derived.
Eight kinds of Sm thin-films with different thickness have been prepared by deposited on clean Fesurfaces with accuracy of 0.1 nm(Sm(d nm)/Fe(10.0 nm)(d＝0.3,0.5,0.7,1.0,1.5,2.0,5.0,10.0)), and the Sm3d 5/2 3/2 XPS spectra of the films have been,in situ,measured at 16K and room temperature. Two lines derived from the S…
Today a lot of new modern construction materials appear which thermal characteristics should be measured. New automatic instrument ДК–сλ–400 to measure thermal capacity and thermal conductivity of homogeneous solid nonmetallic materials at monotonous heating mode have been considered at this research.
Fully natural circulation system is adopted in a decay heat removal system (DHRS) of the designs of Japan Sodium Cooled Fast Reactor (JSFR). Several investigations of experiments and simulation methods on this DHRS were performed. Water experiments were carried out for the primary heat transportation system including…
There is continuing interest in the vinyl derivatives of azoles due to the fact that vinylazoles show high polymerization reactivity under radical initiation con� ditions, while polymers thereof exhibit a wide spec� trum of valuable properties (high energy properties, complexing ability toward metal ions, low toxicity…
Conventional and nanostructured WC–12Co coatings were deposited on 1Cr18Ni9Ti substrateusing high velocity oxy-fuel spraying. The surface roughness and microhardness of as sprayedcoatings were measured, while the phase compositions and microstructures of WC–12Cofeedstock powders and corresponding coatings were respect…
Questions of controlling the aircraft structural elements corrosive damageability don't lose their relevance. Possibility of detecting intercrystalline corrosion using non-destructive control method is worth special interest.
This paper presents in detail the operational principle, theory, control and experimental results of a shunt current source active filter with series capacitor. With the proposed topology the voltage stresses and power losses of the conventional current source active power filter (CSAF) can be reduced. The proposed to…
The problem solution of the definition of the beams inhomogeneous rheological properties on the basis of the acoustic method and the analysis of amplitude-frequency dependences is presented. The operator equations linking required and prescribed functions are presented. The iterative process is constructed, computatio…
Application of culmiferous waste as fractionated strawy litter in the poultry plant under floor housing is considered. Optimal parameters of the initial culmiferous material processing by microwave radiation treatment are specified. Qualitative changes of structural straw surface are investigated.
and 35 Cl), and initiating new projects on amino acids ( 14 N), low-valent indium complexes ( 115 In), and other assorted materials. Metallocenes. We have amassed a large amount of 35 Cl, 47/49 Ti and 91 Zr NMR data for a series of titanocenes, zirconocenes and hafnocenes. These metallocenes are important in homogeneo…
Sodium polycrystalline polyaluminates Na2OnAl2O3 (5,5 n 9,5) were synthesized using solidand liquid-phase methods. It was shown that their conductivity decreases with the increase in n at 313-625 K. The decrease in the conductivity of the final ceramics with the increase in the formation pressure was demonstrated for…
The infl uence of the different types and amounts of strain induced martensite in AISI 304 austenitc steel with copper in internal friction behavior was studied. Specimens were deformed by tension from 0.03 to 0.12 of true strain at temperatures in the range -50 to 20oC, in order to obtain different volumetric fractio…
A simplified finite element model was established to simulate deformation of carbon nanotubes (CNTs) reinforcing magnesium matrix composites during the tensile test. The stress and strain of matrix and reinforcement agent and the effect of interface on mechanical behaviour of composites were specially studied. The sim…
The possibility of using the induction heating device is substantiated for creation of normalized tensions in the circular saw blade. The advantages of the given method are demonstrated over the ones applied in woodworking industry.
The possible deformation of plane structural elements. Get your own variations of the homogeneous prestressed orthotropic plate of constant length clamped on two opposite sides firmly and articulately.