Materials Literature
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In article the combined method of vibrating isolation and vibrating clearing on an example of the stand of vibrratsionno-shock hardening of longerons of helicopters is considered. The developed dynamic model allows to minimise factor of transfer of forces on the equipment base that leads to reduction of levels of vibr…
One of the combine harvester's working organs technological adjustment task solving on the base of fuzzy logic is considered.
In article the author tries to trace first of all the connection of XIX - XX centuries Russian religious philosophy and hesyhasm as an orthodox mystic and ascetic tradition (experience of deep prayer) based on materials of the research of history of philosophy and Religion Studies by professor S.S. Khoruzhy and works…
The design procedure of control bands of parameters of customizations of the serial combine harvesters, based on statistical results of their trials is offered
The article deals with the generation of surface layer by dimensional electrochemical and combined machining. It shows that it is possible to achieve the required performance criteria of surfaces with predetermined properties with the help of the optimum combination of processing characteristics of different processes…
A two-dimensional singular integral equation in a rather arbitrary symmetrical area is considered, to which some problems of mechanics with mixed boundary conditions are reduced. Particularly, these include, the problem of the plate's plane struck on the flat surface of an incompressible fluid, as well as the problem…
In the article is looked the questions of the approximation of characteristics of nonlinear element in parametrical devices of different kinds, working superior zones of instability of oscillations. In this work there were calculated coefficients of different approximating function (of hyperbolic sinus and other funct…
In this paper, acoustic emission (AE) monitoring with a wavelet-based signal processing technique is developed to detect the damage types during mode I delamination on glass/polyester composite materials. Two types of specimen at different midplane layups, woven/woven (T3) and unidirectional/unidirectional (T5), leadi…
Superhydrophobic surfaces are widely adopted for reducing the flow resistance in microfluidic channels. The structures on the superhydrophobic surfaces may consist of longitudinal grooves, transverse grooves, posts, holes, etc. In this paper their effective slip performances are systematically studied and compared in…
Recrystallized polycrystalline tungsten was exposed to a deuterium plasma beam with high flux (10 22 D m −2 s −1 ) and low energy (38 eV D −1 ) to fluences up to 10 27 D m −2 . The sample temperature was varied between 320 and 800 K. The three-dimensional morphology of blister-like structures and the grain orientation…
Chitosan nanoparticles (CNP) have demonstrated anticancer activity in vitro and in vivo by a few recent researches. However, the mechanisms involved in their potential anticancer activity remain to be elucidated. In this study, the effects of CNP on tumor growth were investigated using a model of nude mice xenografted…
The nature of a puzzling high-temperature ferromagnetism of doped mixed-valent vanadium oxide nanotubes reported earlier by Krusin-Elbaum et al. , Nature , 431 (2004) 672 , has been addressed by static magnetization, muon spin relaxation, nuclear magnetic and electron spin resonance spectroscopy techniques. A precise…
The effect of a normal H2 impurity upon the radial thermal expansion αr of single-walled carbon nanotube (SWNT) bundles is investigated in the interval T=2.2–27K using the dilatometric method. It is found that H2 saturation of SWNT bundles causes a shift of the temperature interval of the negative thermal expansion to…
The process of fracture in ductile metals involves the nucleation, growth, and linking of voids. This process takes place both at the low rates involved in typical engineering applications and at the high rates associated with dynamic fracture processes such as spallation. Here we study the growth of a void in a singl…
We point out the existence of finite charge and spin Hall conductivities of graphene in the presence of a spin orbit interaction (SOI) and localized magnetic impurities. The SOI in graphene results in different transverse forces on the two spin channels yielding the spin Hall current. The magnetic scatterers act as sp…
We investigate the influence of laser illumination on the magnetization in multiferroic YbFe 2 O 4 single crystals. A photoinduced magnetization change is confirmed in both ab plane and the c -axis directions. The temperature dependence of the photoinduced magnetization reduction excludes laser heating as the cause. I…
The fast and reversible phase transition mechanism between crystalline and amorphous phases of Ge2Sb2Te5 has been in debate for several years. Through employing first-principles density functional theory calculations, we identify a direct structural link between the metastable crystalline and amorphous phases. The pha…
Using an innovative first-principles band theory enabling the exploration of Mott-insulating magnetic cuprates, we study the Fermi surface of underdoped Y 1- x Ca x Ba 2 Cu 3 O 6 in a selection of magnetically ordered and polaronic states. Inclusion of doping on the antiferromagnetically ordered CuO 2 planes causes th…
We have studied the adsorption of Li atoms at the hollow sites of graphene nanoribbons (zigzag and armchair), graphene, and fullerenes by means of density functional theory calculations including local and semilocal functionals. The binding energy of a Li atom on armchair nanoribbons [of about 1.70 eV for local spin d…
The porphyrin-cyclodextrin conjugates were prepared and tested for selective and effective multifunctional drug delivery and therapy. The porphyrin receptor system combines efficient binding of the selected drug to the cyclodextrin cavity and photosensitizing properties of the porphyrin moiety with high accumulation o…