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。
Benzene-1,3,5-tricarboxamides (BTAs) comprising alkyl side chains form supramolecular polymers in dilute solution and in the solid state as a result of the 3-fold helical arrangement of the intermolecular hydrogen bonds. We investigated systematically the role of polarity on the self-assembling behavior of BTAs in dil…
Crystalline nanoneedles of Eu3+-doped GdPO4 and Eu3+-doped GdPO4 covered with GdPO4 shell (core shell) have been prepared at relatively low temperature of 150 °C in ethylene glycol medium. From luminescence study, asymmetric ratio of Eu3+ emission at 612 nm (electric dipole transition) to 592 nm (magnetic dipole trans…
Graphene has many advantageous properties, but its lack of an electronic band gap makes this two-dimensional material impractical for many nanoelectronic applications, for example, field-effect transistors. This problem can be circumvented by opening up a confinement-induced gap, through the patterning of graphene int…
Floating-gate Flash memories have been able so far to satisfy the market requirements, especially for the portable equipments, and to be the mainstream non-volatile memory (NVM) technology [1]. Projecting into the next decade, though, there are several limitations that must be faced to further scale the floating-gate…
We demonstrated a simple and low-cost fabrication of ZnO p-n homojunction. The junction consists of n-type ZnO nanowires array by a hydrothermal method covered with p-type Al, N co-doped ZnO film by a sol-gel method. The junction exhibits good rectification characteristics, with reverse leakage current and rectificati…
A new method for estimation of long-term strength of constructional polymers is proposed. The method is based on the analysis of generalized kinetic and mechanical characteristics obtained by the synthesis of the kinetic strength theory and the creep theory.
The analysis of the mechanisms of deterioration of abrasive actuating medium in-process made at vibrational abrasive machining and its agencies on its cutability is done. As primal problems on stabilisation of figures of merit of the workpieces caused by the condition of actuating medium have been inprocess determined…
The methods of operative checking the process of steam generation at the termal water purification plants on the heat electric stations in order to prevent emergency mode vaporizers are designed. The analysis of the test results of the quick-response device of checking steam quality is done.
Main principles of formation of modern economic administrative system are described. Some problems of management on the regional level in the post-transformational period are revealed. The calculation of economic efficiency of administrative activity of the Ministry of Agriculture and the Foodstuff of Rostov Region fo…
Mathematical aspects of the solution of spatial contact dynamic problem of contacting the cylindrical details of cars are considered. Updating of the method of the superposition is presented, that allows to conduct analytical research of the intense-deformed condition and to make practical recommendations according to…
Editorial corner - a personal view
Considering the elements of the financial sustainability of agricultural enterprises, the author has concluded that the proposed method of calculation of planned volumes of agricultural support can improve the validity of its budget planning.
Substantiation of graphical method of plotting the tooth root fillet curves of involute wheel teeth with large asymmetry of profiles suitable for construction of self-braking tooth gear drives of load-lifting machines is described. Inversion method is applied to obtain relative locations of the second mating gear teet…
The work continues to research the insufficiently explored problem of bisingular operators with shift index. It considers new cases of index computation of the bisingular operators with indisintegrative involutive shift by the homotopy method.
The results of the theoretical and experimental researches of final smoothing of details’ surface with the medium of organic origin are presented. The models for the estimation of quality of the surfaces and productivity of the process for expansion of technological possibilities of the vibrating processing of details…
The results of the theoretical and experimental research of the original synchronized dualchambered hydromechanical system with indirect regulated valve systems of different structural configuration are shown.
In the work influence of constructive and functional parameters of the unloading automatic machine with the differential valve on work quality of hydromechanical system of constant pressure is investigated.
The approach to modeling and numerical solution of the problem on distribution of the phase transfor-mation front in the frozen breeds which is quite actual for drilling and operation of chinks under the permafrost conditions is considered. The exact solution of the problem in case of semi-infinite physical space is p…
In this article the author presents information on the classification of efficient combined processing methods. The article shows their structure and kinds of forming influence upon a blank. The author also shows the area of effective combined methods usage in machine-building. In addition, the information on the expe…
Fast parallel interface for metal-cutting lathes drives control is described.