992 research outputs found

    Renewable energy markets: Ukrainian perspective

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    Energy from renewable energy sources is the most dynamic and one of the most promising sectors of European and global energy, while renewable energy is seen not only as an emergency replacement of fossil organic fuels, especially oil and gas as well as economically and environmentally sound replacement of traditional fossil fuels, where even now there are all conditions for their use. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3166

    Implementation of environmental management on the crimean enterprises (example of pjsc "Cannery by S.M. Kirov")

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    Creating an effective management system for the enterprise ensures attainment of the current level of economic development and stability. The EMS standards are based on ISO 9000 and ISO 14000. Environmental Management System is the- part of the organization's management system used to develop and implement the environmental policy. Gap-analysis used to identify major successes and focus on the priority issues of leadership in order to adjust future plans to implement an environmental management system. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3620

    Measurements in the near-wall region of a relaxing three-dimensional low speed turbulent air boundary layer

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    An experimental investigation was conducted at selected locations of the near-wall region of a three dimensional turbulent air boundary layer relaxing in a nominally zero external pressure gradient behind a transverse hump (in the form of a 30 deg swept, 5-foot chord wing-type model) faired into the side wall of a low speed wind tunnel. Wall shear stresses measured with a flush-mounted hot-film gage and a sublayer fence were in very good agreement with experimental data obtained with two Preston probes. With the upstream unit Reynolds number held constant at 325,000/ft. approximately one-fourth of the boundary layer thickness adjacent to the wall was surveyed with a single rotated hot-wire probe mounted on a specially designed minimum interference traverse mechanism. The boundary layer (approximately 3.5 in thick near the first survey station where the length Reynolds number was 5.5 million) had a maximum crossflow velocity ratio of 0.145 and a maximum crossflow angle of 21.875 deg close to the wall

    Implementation of environmental management on the crimean enterprises (example of pjsc "Cannery by S.M. Kirov")

    Get PDF
    Creating an effective management system for the enterprise ensures attainment of the current level of economic development and stability. The EMS standards are based on ISO 9000 and ISO 14000. Environmental Management System is the- part of the organization's management system used to develop and implement the environmental policy. Gap-analysis used to identify major successes and focus on the priority issues of leadership in order to adjust future plans to implement an environmental management system. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3620

    Coupled thermomechanical dynamics of phase transitions in shape memory alloys and related hysteresis phenomena

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    In this paper the nonlinear dynamics of shape memory alloy phase transformations is studied with thermomechanical models based on coupled systems of partial differential equations by using computer algebra tools. The reduction procedures of the original model to a system of differential-algebraic equations and its solution are based on the general methodology developed by the authors for the analysis of phase transformations in shape memory materials with low dimensional approximations derived from center manifold theory. Results of computational experiments revealing the martensitic-austenitic phase transition mechanism in a shape-memory-alloy rod are presented. Several groups of computational experiments are reported. They include results on stress- and temperature-induced phase transformations as well as the analysis of the hysteresis phenomenon. All computational experiments are presented for Cu-based structures
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