Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The paper contains description about obtaining two-phase boride coatings on preliminary carbonitrated steel 20. The influence of a preliminary carbonitration on phase – and structure formation and properties of the boride coatings has been investigated in the paper.
Nitinol alloys have received considerable attention in biomedical and aerospace applications. Surface integrity of Nitinol devices by various manufacturing processes is crucial for their functionality. Low plasticity burnishing (LPB) is very promising to modify surface integrity due to its unique capability to adjust…
Carbon nanotubes (CNTs) are of great interest for load-bearing applications because of their excellent mechanical properties. While much effort has been made in the last decade in order to address problems that obscure the applications of CNTs with their remarkable properties fully exploited from both experimental and…
Adhesion phenomena in the secondary shear zone in turning of austenitic stainless steel and carbon steel
In the present work, monometallic Co/CeO2 (Co 7.5 wt.%) and Ni/CeO2 (Ni 7.5 wt.%) catalysts, were compared with the bimetallic Co-Ni/CeO2 (Co 3.75 wt.%, Ni 3.75 wt.%) catalyst. CeO2 has been selected for its redox properties that may mitigate the carbon deposition. The synthesis by surfactant assisted co-precipitation…
The article represents a new outlook at the boundary-value problem of natural vibrations of a homogeneous pre-stressed orthotropic plate-stripe. In the paper, the motion equation represents a new approximate hyperbolic equation (rather than a parabolic equation used in the majority of papers covering the same problem)…
Developed calculation methods and created software for the analysis of the temperature-structural and stress-strain state in monolithic and bimetallic rolling rolls with the heat treatment. By means of computer numerical simulation proved that the production of bimetallic rolling rolls with cladding of steel with carb…
Polietilen teraftalat (PET), teraftalik asit ile etilen glikolun doymus polimer esteridir. Son yirmi yilda kullaniminin yayginlasmasi goz onune alindiginda PET'ler onemli muhendislik polimerlerinden birisi olarak dusunulebilir. PET siseler yuksek dayanimli, hafif olmalari ve dusuk gaz gecirgenliklerinin yani sira este…
The effect of strain rate on the process of flat forming at room temperature has not been clearly defined yet. So far, the effect of strain rate has only been assessed for hot forming technology. The current industry specialising in flat forming technology place great emphasis on the reduction of material consumption…
The methods of NMR, thermogravimetric analysis, and impedance spectroscopy were used to study ion mobility, phase transitions, and ion conductivity in crystal phases in the KF-CsF-SbF3-H2O sys� tem. Analysis of 19 F NMR spectra allowed tracing the dynamics of ion movement in the fluoride sublattice under temperature v…
Historic events associated with the location of Volgograd State University of Architecture and Civil Engineering, peculiarities of its architectural and planning solutions, urban planning solutions implemented in the initial plan of the town of Tsaritsyn, approved by the Russian Emperor in 1820, are considered in the…
A method for construction of piecewise-harmonic interpolations is proposed for spherical surfaces. Isometric coordinate transformations and piecewise-polynomial bases are used. The error of approximation by constructed interpolants is studied. The results of interpolation from the ARGO buoy system are presented.
First and foremost, I would like to express my deep and
血流解析において,流体構造連成は極めて重要である.本研究では血管の変形を正しく計算するため残留応力の影響について検討する.血管をFungモデルで近似するが,同じモデルを用いたとしても残留応力によって著しく異なる.またFungモデルは線形でないため,逆解析によりゼロ圧力形状を推定することは原理的に難しく,血管の成長という観点から見ても妥当ではない.そこで,本研究では,円柱形状の血管モデルを用い,血管に対する知見をもとに,もっともらしい残留応力を推定するための計算を行う.
This article gives an overview of adhesive contact for soft bodies and focuses on a general computational framework that is suitable for treat- ing a large class of adhesion problems. The contact formulation is based on a non-linear continuum approach that is capable of describing bodies down to length scales of sever…
Hydrophobization of polar substrates is an important prerequisite for many applications. Hydrophobic coatings are needed in order to protect materials such as metals, wood, plastics, leather and fabric against the destructive action of water. Chemical modification of polymer surfaces by flame treatment, corona dischar…
Advances toward the development of light-weight fully electric aerospace structures leads to the need of replacing on-board batteries with lighter and more efficient energy storage devices and systems. Here a novel self-rechargeable multifunctional carbon fiber composite is presented. The composite has the capability…
As a potential low-cost alternative to traditional amorphous-silicon based devices, organic field-effect transistors (OFETs) are expected to be incorporated into all-plastic integrated circuits and flexible display backplanes. More recently, breakthroughs have been made in the performance of OFETs based on pi- conjuga…
According to the definition from the National Nanotechnology Initiative, nanotechnology refers to research conducted at a nano-scale level which is about 1 to 100 nanometers (nm). Recent years have seen widespread application of nanotechnology in the field of drug delivery. Using nanotechnology, it is possible to pack…
Piperonyl butoxide (PBO) 1 was prepared via the successive chlo- romethylation and etherification of dihydrosafrole 3. In this work, during the chloromethylation of 3, several by-products such as 5 (the isomer of chloromethyldihydrosafrole 4), 6-propylpiperonyl alcohol 6, bis(chloromethyl)- dihydrosafrole 7 and 8, bis…