Направления деятельности по обеспечению энергоэффективности энергетики

При оценке путей развития мировой энергетики необходимо учитывать сложный комплекс факторов – направления и приоритеты мировой экономики и промышленности, технологические, ресурсные и экологические возможности, энергетические, политические, демографические проблемы, а также вести учет взаимного влияния всех указанных факторов друг на друга. Важно учесть зависимость развития энергетики и уровня экономики. Энергетика требует объединения усилий всего человечества для решения возникших проблем и определения стратегии развития. Главная задача — предотвращение экологического кризиса, стимулирование процесса перехода к энергетике нового типа.It is necessary to take account the difficult complex of factors: directions and priorities of world economy and industry, technological, resources and ecological possibilities power, political, demographic problems, and also to register mutual influencing of all indicated factors on each other at estimation ways of the development world energy. It is important to take account dependence the energy development and economic level. The energy requires associations of efforts all humanity for the decision problems and determination strategy of development. A main task is prevention of ecological crisis, the stimulation process of transition to energy new type

Управління прибутком підприємств в контексті забезпечення ефективності функціонування та розвитку економіки України

Досліджено теоретико-методичні засади управління прибутком підприємства

Numerical Modeling of Physic-Chemical Processes of Multicore Cable in the Polymerization

There are developed mathematical model of physical and chemical processes of polymerization adhesive coating stranded cable. There are found time of full polymerization in the shell of the multicore cable product. There are compared with the single-core cable. Also the necessity of changing the speed of the cable pulling the multilayer product compared with single-core

The Problem of Shortage of Foreign Language Training for Students During Professional Skills Development in the Field of Mechatronics

The article notes the shortage of foreign language training for Russian students studying in the Electric Drive and Automation program that hinders a successful mastering of professional engineering skills in the field of mechatronics. The absence of a holistic approach to language training is described on the example of the federal educational standards for Power and Electrical Engineering and similar educational programs. The article gives examples of an approach to solving this problem, which is used in some universities of the Siberian Federal District and it proposes the concept of using a foreign language in the professional training, aimed at overcoming the problem

Charring Rates for Different Cross Sections of Laminated Veneer Lumber (LVL)

Current research at the University of Canterbury is investigating the performance of a new type of timber floor system made of a timber-concrete composite. This newly proposed timber floor system uses double LVL members connected together with screwed connections to form one larger LVL member. Recent large scale fire tests showed that the joint between these two screwed LVL members opened up during fire exposure. This opening phenomenon causes concerns as the overall charring rate of the joint LVL members is subsequently increased. The main focus of this research, therefore, was to examine the charring rate for different cross sections of single and double LVL members, with different connection types for the double members. The single LVL member examined was 63mm width whereas the double LVL members examined were 90mm and 126mm width. Three connection types were investigated which were nails, screws and glue. Their corresponding charring rates and burning characteristics were examined both in the small furnace provided by the University of Canterbury and in the pilot furnace at the Building Research Association of New Zealand (BRANZ) in Wellington. The overall finding from the small furnace testing shows that the overall average side charring rate for a 30 minute fire exposure was 0.76mm/min; whereas the overall average side charring rate for a 60 minute fire exposure was 0.66mm/min. Moreover for a 30 minute fire exposure, the average bottom charring rates for nail, screw and glue connected double LVL members were 1.00mm/min, 0.83mm/min and 0.83mm/min, respectively. For a 60 minute fire exposure, the average bottom charring rates for screw and glue connected double LVL members were 0.97mm/min and 0.57mm/min, respectively. The nail connected double LVL members experienced the highest bottom charring rate as it suffered the largest bottom separation which allowed the heat to travel into the mid-span resulting in a higher bottom charring rate. Out of these three connection types, the glued connection was the best connection type. Experimental findings were compared with the simulated results generated by the SAFIR finite element program. Experimental findings were also used to modify the spreadsheet design tool which predicts the fire resistance rating of a timber-concrete composite floor under user defined load conditions and floor geometries

К вопросу использования электродинамической сепарации для переработки труднообогатимых золотосодержащих песков россыпных месторождений

Розглядаються можливі напрями подальшого вдосконалення вживання електродинамічних сепараторів. Вживання імпульсної техніки для генерації магнітного поля в робочій зоні сепараторів дозволило поліпшити їх робочі характеристики і розширити область вживань. Запропонована методологія побудови ресурсозберігаючих екологічно безпечних технологічних ліній збагачення для переробки металоносних пісків на основі електродинамічних сепараторів.Рассматриваются возможные направления дальнейшего совершенствования применения электродинамических сепараторов. Применение импульсной техники для генерации магнитного поля в рабочей зоне сепараторов позволило улучшить их рабочие характеристики и расширить область применений. Предложена методология построения ресурсосберегающих экологически безопасных технологических линий обогащения для переработки металлоносных песков на основе электродинамических сепараторов