oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 106 )

2018 ( 174 )

2017 ( 169 )

2016 ( 281 )

Custom range...

Search Results: 1 - 10 of 130419 matches for " Sizov V.V. "
All listed articles are free for downloading (OA Articles)
Page 1 /130419
Display every page Item
Nanosize Carbides Formation and Fatigue Life Increase of Stainless Steel by Electron Beam Treatment
Gromov V.E.,Sizov V.V.,Vorobyov S.V.,Ivanov Yu.F.
Proceedings of the International Conference Nanomaterials : Applications and Properties , 2012,
Abstract: Electron – beam treatment with 20 J/cm2 energy density of Fe-0.20C-23Cr-18Ni stainless steel increases fatigue life up to 2.1 times. Fracture surface investigations have been carried out by the methods of scanning and transmission diffraction electron microscopy and layer-by-layer analysis of structural phase states and defect substructure of steel subjected to the multicyclic fatigue tests, has been made as well. Nanosize (Cr,Fe)23C6 carbides formation and physical reasons of steel fatigue life increase by electron – beam treatment have been found out.
Thermoelectrical Investigation of Rare Earth Sulfide Materials  [PDF]
V.V. Sokolov, V.V. Bakovetz, S.M. Luguev, N.V. Lugueva
Advances in Materials Physics and Chemistry (AMPC) , 2012, DOI: 10.4236/ampc.2012.24B007
Abstract: Results  are presented on synthesis   and crystal growth of  Gd2S3-Dy2S3 solid solution sulfides and study of their thermoelectric properties in the range of temperatures 80-400 K. Gd0.2Dy0.8S1.48 composition has the best values of thermoelectric efficiency 0.39 x 10-3/K at 400 K.
Reflectors for VCN and applications of VCN
Nesvizhevsky, V.V.;
Revista mexicana de física , 2011,
Abstract: present contribution is based on the talk given at the vi international symposium on radiation physics in zacatecas (méxico). it summarizes recent developments on nanoparticle reflectors for very cold neutrons (vcn). particular attention is devoted to powders of detonation nano-diamonds, possessing exceptional properties for such reflectors. examples of vcn applications in particle and nuclear physics are given.
The Use of Cryodestruction in Ingrown Nail Treatment in Polyclinic
V.V. Slonimsky
Sovremennye Tehnologii v Medicine , 2012,
Abstract: The aim of the investigation is to study the possibilities of using modern combined cryodestruction technique to treat ingrown nail in polyclinic surgeries. Materials and methods. There have been analyzed the results of complex cryosurgical treatment of ingrown nail in 17 patients with various degree of pathological process. 17 patients of the control group underwent traditional surgical treatment.Conclusion. Cryosurgical method of treating patients with ingrown nail is least traumatic, cost-effective. It contributes to rapid rehabilitation, improvement of patient’s life quality, vocational rehabilitation, and has a good cosmetic effect.
Prognosis of Prolonged Clinical Course Variants of Neonatal Conjugated Hyperbilirubinemia
V.V. Solntsev
Sovremennye Tehnologii v Medicine , 2011,
Abstract: The purpose of the study is to reveal risk factors that have a reliable effect on prolonged clinical course variants of prolonged conjugated hyperbilirubinemia.Materials and Methods. There has been carried out a prospective study of clinical biological indexes in 100 children aged from 4 weeks to 3 months with manifestations of a prolonged variant of conjugated hyperbilirubinemia and 40 children without these manifestations.Results. Based on the analysis of dynamics of total bilirubin level decrease and the characteristics of prolonged course of hyperbilirubinemia, there have been distinguished three variants of pathological condition: benign, undulating and resistant. And prognostic criteria of forming prolonged variants of neonatal conjugated hyperbilirubinemia have been determined.
Peculiarities of a Penial Hemodynamics in Patients with a Cerebrovascular Pathology (New Aspects)
V.V. Klochai
Sovremennye Tehnologii v Medicine , 2010,
Abstract: Aim of investigation is assessment of the hemodynamic disturbance influence in patients with a cerebrovascular pathology on the erectile functions.Materials and methods. 171 patients with a dyscirculatory encephalopathy, 96 — with initial manifestations of a cerebral circulation insufficiency, 92 — with consequences of ischemic insult were examined with a method of ultrasonic doplerography with a spectral analysis.Results. The arterial inflow disturbances in patients with a dyscirculatory encephalopathy were revealed in a half of cases, however they were faintly expressed, and a functional possibility of cavernous bodies is conserved in majority of cases. A venous hemodynamics disturbance in a penis in patients with the cerebrovascular diseases is revealed in more than a quarter of humans with ischemic insult and in 8.7% of humans with a dyscirculatory encephalopathy. The critical disturbances of a venous hemodynamics in a penis are not revealed in patients with initial manifestations of a cerebral circulation disturbance.A participation of erectile dysfunction in a pathogenesis at the vascular factor cerebrovascular diseases is confirmed, and moreover both arterial and venous systems of a penis circulation are affected, frequently in combination with each other.
DYNAMICS OF ALGAE NUMBER AND BIOMASS OF STEPPE BIOGEOCOENOSES AND AGROCOENOSES IN KHERSON REGION
Shcherbina V.V.
Bìologì?nij Vìsnik Melìtopol?s?kogo Der?avnogo Pedagogì?nogo Universitetu ìmenì Bogdana Hmel?nic?kogo , 2011,
Abstract: Characteristics of daily dynamics of seaweeds abundance and biomass were determined for steppe biogeocoenosis and agrocoenosis of Biosphere reserve “Askaniya-Nova” in spring of 2011. Fluctuation ranges in seaweeds abundance and biomass have been registered.Analyzing the indices of total number and algae biomass in studied biogeocoenoses it should be noted that the maximal values of alga number in virgin soil steppe exceeded minimal in 3,3 times; biomasses - in 2,1. For virgin soil steppe of post-fire-induced development the relation between maximum and minimal value of total number of algae was up to 2,1; biomass - 2,4. For agrocoenosis we noted the largest ranges in variation of number and biomass. In conditions of dry-land arable land the maximum values of total number of alga exceeded minimal in 21,9 times; biomasses - in 8,7; for irrigated arable land - in 12,5 and 5,6 respectively.In soil samples, selected within the limits of virgin soil biogeocoenoses of biosphere reserve “Askania-Nova” and agrocoenosis of dry-land and irrigated arable land in biosphere reserve by direct count, the algae species of Bacillariophyta, Cyanophyta, Chlorophyta, Xanthophyta and Eustigmatophyta have been found. The largest contribution to number and biomass of algae belonged to Bacillariophyta. The number and biomass of agrocoenosis algae is more dynamic feature, than for algae of virgin soil biogeocoenoses.
MACROMYCETES OF DUMPING SITES AS BIOINDICATORS OF ANTHROPOGENIC EDAPHOTOP STATUS
Popovych V.V.
Bìologì?nij Vìsnik Melìtopol?s?kogo Der?avnogo Pedagogì?nogo Universitetu ìmenì Bogdana Hmel?nic?kogo , 2012,
Abstract: We studied the development of the macromycetes on anthropogenic edaphotop of dumping sites in western wooden-steppes of Ukraine. We considered principal ecological factors, namely acidity, temperature, and connectivity of edaphotop; humidity, temperature, and air humidity, atmospheric pressure, wind speed, equivalent dose of ionizing radiation in the surface ground of macromycetes habitats. The species diversity of macromycetes in dumping sites of western wooden-steppes of Ukraine was considerably low (Simpson index: 0,91; Shannon index: -1,9). Species evenness was calculated by indices of Simpson and Shannon was rather low: 0,43 and -2,71 correspondingly; this indicated limited development of fungi. The main factors were violation of natural environment of macromycetes biotopes and anthropogenic pressure on their development as a result of aerobic and anaerobic processes that occur within the dumping sites. We founded that macromycetes could be bioindicators of the anthropogenic edaphotop of the dumping sites.
Designing of steel frameworks from thin-walled cold-formed profiles in SCAD Office
V.V. Yurchenko
Magazine of Civil Engineering , 2010,
Abstract: This paper is devoted to computer-aided designing of steel frameworks from thin-walled cold-formed profiles. It has been shown that the wide utilization of building structures from thin-walled cold-formed profiles produced domestically is restricted, first of all, by shortcoming of national building standards and requirements, as well as insufficient domestic experience in economic and reliable designing of such kind of steel structures. The main attention has been paid to the structural analysis and determination of the internal forces in structural members from thin-walled cold-formed profiles taken into account restricted torsion deformations. Some scientific issues under the buckling behavior of the structural members from thin-walled cold-formed profiles, as well as post-buckling behavior of these elements after the local buckling of the compressed cross-sectional parts has been presented.As example, computer-aided design for the steel framework of typical warehouse building of company Llentabhallen Sp.z.o.o. using SCAD Office has been presented. In this example the particularities of the 3D finite element modeling of the steel frameworks from cold-formed thin-walled profiles has been also presented.
Marketing analysis of the competitiveness of state-owned banks
V.V. Onishchenko
Marketing ì Mened?ment Innovacìj , 2011,
Abstract: The article investigated the competitive position of the Ukrainian state-owned banks in comparison with the largest commercial banks, representatives of the private sector. The main characteristics on which the state banks concede private has been defined. The main advantages and disadvantages of state-owned banks that have an impact on their competitiveness has been defined.
Page 1 /130419
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.