Materials Literature
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The physiological characteristics of the skin are greatly affected not only by their races, gender, and habit but also by the climate and surrounding environments. This study aims to examine on geographical and racial differences in the characteristics of facial skin type, make-up styles, color preferences, and skin c…
Поиск альтернативных видов топлива для улучшения экологической ситуации, вызванной использованием дизельного топлива, является актуальной научной проблемой. Исследована возможность получения моноалкильных эфиров жирных кислот c использованием липазы из масляных экстрактов водорослей Cladophora sp., Spirogira sp. и Oed…
The necessity of the products manufacture made of titanium and its alloys inUkraineis shown. An integrated barshaped semi-finished welding technology of sintered titanium alloys is developed. Мicrostructural and fractographic investigations and mechanical tests of semi-finished products were conducted. On the basis of…
In the article method of the directed descriptions spherical array calculation is driven. The basis of method is possibility of electromagnetic radiation focusing at forming of multifrequency spatio-temporal signal. For that basic method of calculation correlations are got main expressions for the calculation of the f…
Using the method of equivalent electromechanical circuits the problem of sound radiation cylindrical piezoceramic transducer using unloaded design solved. Analytical expressions describing the sound field in the exterior of the radiator and in the inner cavity defined. Numerical calculations and analysis performed. Pa…
Розглянуто енергетичну ефективність сучасних систем електростартерного пуску автомобільних двигунів у аспектах коефіцієнта корисної дії системи щодо використання хімічної енергії пального та експлуатаційних витрат пального. The energetic efficiency of modern systems of electric starter start-up vehicle engines in the…
By the method of X-Ray diffractometry it was established, that insertion of low concentrations of copper ions into iron-plating electrolyte causes change of the preferred crystal orientation in the coatings – pronounced axial orientation of replaces the orientation of typical for electrodeposited iron without alloying.
We present the first simple analytical description of the interdiffusion process where the competition between the Kirkendall shift and the backstress is considered. It is shown that two diffusion subzones are formed; these sections are linked to the fast and slow diffusing component. During the interdiffusion process…
Встановлено вплив дисперсного поверхнево модифікованого оксиду титану (IV) на умови тверднення ненасичених поліестерних смол та властивості композитів. Встановлено режими тверднення поліестерних смол і виявлено активаційну роль наповнювача на формування композитів з покращеними експлуатаційними характеристиками. The i…
Исследован механизм коррозии аустенитных сталей 12Х18Н10Т, 10Х17Н13М2Т, 03Х17Н14М3 и металлов Cr, Fe, Ni, Mo в расплаве NaCl-KCl-NbCl n (n = 3.5, содержание Nb (5 ± 0.1) мас. %) при 750°С. Определены скорости коррозии металлов и сталей в данных условиях. Установлен характер разрушения материалов и их механизмы коррози…
Influence of modification was investigational on diminishing of maintenance of harmful admixtures grey phosphorus. Basic thermodynamics parameters which the most favorable connections were set as a result of are certain. It was well-proven that modification is instrumental in the increase of stability of chemical comp…
介绍了湘钢5000mm宽厚板轧线粗、精轧机HGC的Turn Ready位置的意义,经过研究,实现了HGC Turn Ready位置根据轧辊数据自动计算功能,有效保护了粗、精轧机工作辊平衡缸/弯辊缸、轧机主轴托架等机械设备.
STRENGTH PROPERTIES OF FP9120 PHOTORESIST-SILICON STRUCTURES / S. VABISHCHEVICH, N. VABISHCHEVICH, D. BRINKEVICH, V. PROSOLOVICH, V. ODZHAEV, YU. YANKOVSKI
Considered theoretically grounded approach to the design of improved booster friction- vortex turbines, based on the analysis of the dynamics of the working fluid in the friction- vortex turbine drive units methods of mathematical physics. Based on the theoretical developments presented variant of the solution of engi…
Skuibida O.L. Secondary aluminium alloys production as an ecologically safe method of increasing the efficiency of materials and energy use / O.L/ Skuibida //Захист навколишнього середовища. Енергоощадність. Збалансоване природокористування: зб. матеріалів 3-го Міжнародного конгресу (Львів, 17-19 вересня 2014 р.). – Л…
Problem formulation. Last years new buildings are increasingly remarkable for new architectural forms. It’s because there is a need for new and interesting projects. People want to be whole their life in houses with improved conditions, with greater size and non–standard space–planning decisions. Scientific and techno…
Målet med prosjektet var å skape et grunnlag for at utvalgte byggvaerer i plast skal kunne brukes på en brannsikker måte. For å oppnå dette vurderer vi det som hensiktsmessigt å øke kunnskapsnivået om brannsikker håndtering av byggevarer i plast blant ulike aktører (brannvesen, prosjeterende, arkiteter og utførende).…
Hoodia gordonii passou a ser consumida ha seculos, com o intuito de promover uma reducao do apetite e da ingestao de agua e comida, e ate os dias atuais e utilizada para este fim, em diversos paises. O presente estudo buscou investigar possiveis alteracoes comportamentais e metabolicas em roedores tratados com Hoodia…
Corannulene, coronene and circulene are polycyclic aromatic hydrocarbons (PAHs) compounds were chosen to study the preparation of carbon tubes with diameters smaller fraction of nano-meter theoretically may achievable using the density function theory (DFT). The results showed that the stability of the molecules are;…
Обоснованная математическая модель (ММ) течения жидкости в проточной части (ПЧ) лопастной гидравлической машины (ГМ) (турбины или насоса) способствует развитию методов их проектирования и определения гидродинамических параметров для целенаправленного совершенствования энергетических, кавитационных и силовых характерис…