Improvement of the Sintered Surface and Bulk of the Product Via Differentiating Laser Sintering (Melting) Modes

Selective laser sintering (melting) enables using metal powdered materials to manufacture products of any geometrical complexity, requiring no preliminary costs to prepare processing equipment. However, quality of the sintered surface is often inadequate as against the product manufactured traditionally. Manufacturing a high quality product requires solution of such vital task as prediction of the sintered surface roughness. The authors address to the effect of laser sintering modes on roughness of the surface, sintered of copper powdered material PMS-l (IIMC-1). The dependence of roughness of the surface layer sintered of copper powder material PMS-l upon sintering process conditions is expressed mathematically. The authors suggest differentiating sintering modes to improve the sintered surface and the bulk of the product and dividing them into rough, semi-finishing, and finishing ones

Organizational-administrative Features of the Implementation of Educational Services in the Two-level System of Training of Highly Qualified Personnel

It is education - the system of formation of the nation's intellectual capital and as one of the main areas of production innovation - creating the basic conditions for intensive growth of the markets on the basis of rapid updating of technologies and products. Education acts as the first link "education - research - innovation development of mass" of the innovation cycle. This educational sphere acts not only as a necessary element of reproduction of intellectual capital, but also as a dominant element of economic growth, which determines the stability of the external and internal competitive advantages of national economic systems. From the power of the national economy play an individual and a public intellectual capital, which implements the level of economic thinking of the nation, it is largely determined by economic strength, well-being, and the choice of its strategy and the subsequent trajectory of development in a global world order. In this connection, the Russian education there are urgent tasks related to the need to comply with the transformation of the education sector changes. Keywords: economic growth, educational service, training, educational organization JEL Classifications: G20, L00, O4

The effect of cutting conditions on power inputs when machining

Any technological process involving modification of material properties or product form necessitates consumption of a certain power amount. When developing new technologies one should take into account the benefits of their implementation vs. arising power inputs. It is revealed that procedures of edge cutting machining are the most energy-efficient amongst the present day forming procedures such as physical and technical methods including electrochemical, electroerosion, ultrasound, and laser processing, rapid prototyping technologies etc, such as physical and technical methods including electrochemical, electroerosion, ultrasound, and laser processing, rapid prototyping technologies etc. An expanded formula for calculation of power inputs is deduced, which takes into consideration the mode of cutting together with the tip radius, the form of the replaceable multifaceted insert and its wear. Having taken as an example cutting of graphite iron by the assembled cutting tools with replaceable multifaceted inserts the authors point at better power efficiency of high feeding cutting in comparison with high-speed cutting

БИЗНЕС И ОБРАЗОВАНИЕ: ИННОВАЦИОННЫЕ СТРАТЕГИИ

The article is written by postgraduate students of the Sociological Department of the Lomonosov Moscow State University on the results of a general discussion of the possibilities of innovative development through the prism of related fields of knowledge. It reflects the urgency of studying the processes taking place in various institutions of society and causing innovative development. The publication discusses the features of the functioning and interaction between the social institutions of business and education in the context of innovative processes occurring in Russia (low conversion fundamental knowledge in innovation, the inability of young people to engage in science, the specialists outflow from the country, maintaining a balance between traditions and innovations in education, closure of complex industries, and others). The analysis of existing theories and examples of successful interaction between education and business organized to obtain innovative developments are presented (MSU Science Park and others).The data on innovative business models implemented in the countries of the world (Russia, China, Singapore, the United States) and the features of their implementation (the possibility of start-up visas, the problems of protecting the rights of entrepreneurs and investors, the time of launching the project and the idea before production), empirical data on the outflow of specialists From Russia, which is considered as one of the consequences of the lack of innovative production in Russia). The authors proposed the possible directions of the organization of education and innovative business, based on the successful experience of foreign countries. The article considers marketing mechanisms as a way of communication between education, business and government institutions in the creation and implementation of innovative developments in Russia, the peculiarities of marketing in the innovative context, in particular, the key role of marketing in acquiring the final innovative product by buyers.Статья написана аспирантами социологического факультета Московского Государственного Университета имени М.В. Ломоносова по результатам общего обсуждения возможностей инновационного развития сквозь призму смежных областей знаний. Она отображает актуальность изучения процессов, происходящих в различных институтах общества и обуславливающих инновационное развитие. В публикации рассмотрены особенности функционирования и взаимодействия между собой социальных институтов бизнеса и образования в контексте инновационных процессов, происходящих в России (низкая конвертация фундаментальных знаний в инновации, неготовность молодежи заниматься наукой, отток специалистов из страны, сохранение баланса между традициями и инновациями в образовании, закрытие сложных производств, и другие). Проведен анализ существующих теоретических исследований и приведены примеры успешного взаимодействия образования и бизнеса, организованного в целях получения инновационных разработок (Научный парк МГУ и др.).Приведены данные по инновационным моделям бизнеса, реализуемых в странах мира (Россия, Китай, Сингапур, США) и особенностям их реализации (возможности стартап-визы, проблемы защиты прав предпринимателей и инвесторов время запуска проекта и идеи до производства), эмпирические данные по оттоку специалистов из России, которые рассматривается как одно из следствий отсутствия инновационных производств в России). Авторами предложены возможные направления организации образования и инновационного бизнеса, основанные на успешном опыте зарубежных стран. Рассмотрены маркетинговые механизмы как способ коммуникации между институтами образования, бизнеса и государства при создании и реализации инновационных разработок в России, особенности маркетинга в инновационном контексте, в частности – ключевая роль маркетинга в приобретении покупателями итогового инновационного продукта

Механизмы повреждения эритроцитов при токсическом действии метгемоглобинобразователей

Structural properties of lipid component of erythrocyte membrane of Wistar rats with methemoglobinemia were investigated after one injection of sodium nitrite and phenylhydrazin chloride in DL50 dose. It was shown that in methemoglobinemia cholesterol, lysophosphatidylcholine, sphingomyelin, phosphatidylserine levels are increased and phosphatidylcholine and phosphatidyletanolamine levels are decreased, and an increase of microviscousity of erythrocyte membrane lipid matrix was elevat-ed. The degree of the elucidated changes depends on a xenobiotic and a time of methemoglobinemia period.Исследованы структурные свойства липидного компонента эритроцитарной мембраны у крыс линии Wistar при метгемоглобинемиях, индуцированных однократным введением нитрита натрия и солянокислого фенилгидразина в дозах DL50. Показано, что при метгемоглобинемиях увеличивается содержание холестерина, лизофосфатидилхолина, сфингомиелина, фосфатидилсерина, снижается уровень фосфатидилхолина и фосфатидилэтаноламина, в мембране эритроцитов возрастает микровязкость липидного матрикса. Степень выявленных изменений зависит от вида ксенобиотика и продолжительности периода метгемоглобинемии

Механизмы регуляции объема эритроцитов у кардиохирургических больных с умеренным и выраженным гемолизом после операций на остановленном сердце

A study of mechanisms of regulation of volume of erythrocytes in cardiosurgical patients with moderate (24 patients) and expressed (13 patients) hemolysis after coronary artery bypass grafting in conditions of cardiopulmonary bypass was carried out. It was established that development expressed hemolysis is associated with higher (than under moderate hemolysis) volume of erythrocytes after operation, reduction Са2+-dependent К+-permeability and activity of Nа+/K+-ATPazy in their against deficiency of ATP in cells. At patients with moderated hemolysis independently of an investigation phase Са2+-dependent К+-permeability of a membrane of erythrocytes doesn't differ from healthy donors, but activity of Nа+/K+-ATPazy is reduced at the sufficient content of ATP.Проведено исследование механизмов регуляции объема эритроцитов у кардиохирургических больных с умеренным (24 человека) и выраженным (13 человек) гемолизом после коронарного шунтирования в условиях искусственного кровообращения. Установлено, что развитие выраженного гемолиза ассоциировано с бóльшим, чем при умеренном гемолизе, объемом эритроцитов после операции, уменьшением их Са2+-зависимой К+-проницаемости и активности Nа+/K+-ATФазы на фоне дефицита АТФ в клетках. У больных с умеренным гемолизом вне зависимости от этапа исследования Са2+-зависимая К+-проницаемость мембраны эритроцитов не отличается от таковой у здоровых доноров, но активность Nа+/K+-ATФазы снижена при достаточном содержании АТФ

Examination of trends in education with the Google Books Ngram Viewer

The paper is based on a comparative analysis of a joint set of Russian federal, national research and global universities (43 universities) in terms of their "Scopus" publication activity along with the Webometrics Openness and Excellence indicators (January 2018

BUSINESS AND EDUCATION: INNOVATION STRATEGIES

The article is written by postgraduate students of the Sociological Department of the Lomonosov Moscow State University on the results of a general discussion of the possibilities of innovative development through the prism of related fields of knowledge. It reflects the urgency of studying the processes taking place in various institutions of society and causing innovative development. The publication discusses the features of the functioning and interaction between the social institutions of business and education in the context of innovative processes occurring in Russia (low conversion fundamental knowledge in innovation, the inability of young people to engage in science, the specialists outflow from the country, maintaining a balance between traditions and innovations in education, closure of complex industries, and others). The analysis of existing theories and examples of successful interaction between education and business organized to obtain innovative developments are presented (MSU Science Park and others).The data on innovative business models implemented in the countries of the world (Russia, China, Singapore, the United States) and the features of their implementation (the possibility of start-up visas, the problems of protecting the rights of entrepreneurs and investors, the time of launching the project and the idea before production), empirical data on the outflow of specialists From Russia, which is considered as one of the consequences of the lack of innovative production in Russia). The authors proposed the possible directions of the organization of education and innovative business, based on the successful experience of foreign countries. The article considers marketing mechanisms as a way of communication between education, business and government institutions in the creation and implementation of innovative developments in Russia, the peculiarities of marketing in the innovative context, in particular, the key role of marketing in acquiring the final innovative product by buyers

Mathematical Modeling of the “Bone-Fixator” System during the Treatment of Intertrochanteric Fractures

Relevance — the need for an objective justification in choosing the type of fixation in the treatment patients with pertrochanteric hip fractures.Objective — to study the changes in the properties of a consolidating trochanteric fracture fixed by a dynamic cephalomedullary nail when subjected to cyclic dynamic loads.Materials and methods. A mathematical model was developed for trochanteric fracture of the femur (A1 according to AO classification) when fixed with a dynamic cephalomedullary nail. Then, the properties of the system were studied (pressure between fragments, mechanical stress in the bone and fixation device, displacement amplitude, neck-diaphysis angle) under a virtual load of a 80 kg body at various amount of insertion of the dynamic screw (from 10 mm to 0 mm).Results. In the process of shortening the femoral neck axis by 1 cm, the stability of the ‘bone-metal fixation device’ system increases, as indicated by a decrease in the maximum amplitude of displacements in the system under load by 16.8%, a decrease in the maximum stress in the fixation elements by 20.2%, a decrease in pressure at the site of contact of fragments by 19.8%. In addition, there was a decrease in the neck-diaphysis angle by 2.8%.Conclusion. The mathematical modeling of the ‘bone-metal fixation device’ system simulating conditions of dynamic osteosynthesis showed that there is a potential increase in the stability of the cephalomedullary system and that favorable conditions are created for the consolidation of the fracture when subjected to cyclic load of body mass