987 research outputs found
On the Possibility of Using Renewable Energy Sources for Operation of Microwave Convective Drying of Grain
No full textCurrently, the power supply of agricultural enterprises should be designed considering not only the required installed capacity but also the peculiarities of production. Thus, the presence of livestock operations implies waste, the disposal of which entails costs. At the same time, feed preparation, including drying of fodder grain is associated with significant energy costs. Thus, the availability of biogas equipment will allow the synthesis of utilization technologies in the form of processing into biogas and the energy supply of equipment to carry out drying. At the same time, attention should be paid to technologies with reduced energy consumption for technological processes. For example, microwave convective or infrared convective drying of grain. These technologies have a reduced energy consumption for moisture removal, but the installed capacity of the equipment is higher than in traditional technologies. This work is aimed at investigating the ratio of heat and electric energy expended in the process of microwave convective drying and the choice of possible renewable energy sources for the implementation of technological operations. Considering that drying of grain is mainly carried out during the harvesting period before storing, it allows considering energy equipment as a source of thermal energy in the cold period, when drying is not required
Strengthening of the base of subsistence agriculture Ural industrial enterprises in the initial period of the Great Patriotic war
No full textБУДНИКО В Юрий Иванович, кандидат исторических наук, доцент, кафедра истории, Южно-Уральский государственный университет (Челябинск, Россия). Научные интересы: история Великой Отечественной
войны 1941—1945 гг., история повседневности, история науки и техники. E-mail: [email protected]. Y. I. Budnikov, South Ural State University, Chelyabinsk, Russian Federation, [email protected]Анализируются основные документы ЦК ВКП(б), ГКО, СНК СС Р, определившие в годы Великой Отечественной войны политику государства в области продовольственного снабжения тружеников тыла, организации условий для дополнительного децентрализованного обеспечения
продуктами питания рабочих и служащих оборонных предприятий. Рассматривается разносторонняя работа партийных, советских, профсоюзных и хозяйственных организаций Урала по созданию собственной продовольственной базы в условиях продовольственного кризиса начального периода войны. В центре внимания автора оперативная деятельность региональных
властей, руководителей предприятий по развитию сельских подсобных хозяйств в оборонной промышленности, укреплению их машинно-тракторной базы, оснащению сельскохозяйственным инвентарем, расширению посевных площадей. В статье используются материалы архивов, которые в основном впервые вводятся в научный оборот. Не скрывая больших трудностей,
нерешенных проблем, ошибок и неудач в деле создания собственной продовольственной базы уральских промышленных центров, автор в заключении приходит к выводу, что уральцам в тяжелейших условиях начала войны удалось в значительной мере дополнить централизованное
продовольственное снабжение трудящихся за счет местных ресурсов, немалую роль в этом сыграли подсобные хозяйства оборонных предприятий. Это благотворно повлияло на производственную активность тружеников тыла, ковавших оружие Великой Победы. Analyzes the basic documents of the Central Committee of the CPSU (b), T-bills, SNK is defined
in the Great Patriotic War, the state policy in the field of food supply workers in the rear, the organization
conditions for decentralized provision of additional food workers and employees of defense
enterprises. Considered diversified work of Party, government, trade unions and business organizations
of the Urals to establish their own food base in the food crisis of the initial period of the war. The author focuses on the operational activities of the regional authorities, heads of enterprises for the development of rural farms in the defense industry, strengthening their machine — tractor base
equipment farm implements, expanding acreage. We use the archival materials, which are mainly introduced for the first time in the scientific revolution. Not hiding much difficulty, unresolved
problems, errors and failures in the creation of their own food base of the Ural industrial centers, the author concludes the conclusion that the Urals in the hardest conditions of the early war was largely complement centralized food supply of workers at the expense of local resources, a considerable role was played by farms defense enterprises. This beneficial effect on production activity workers in the
rear, forged the weapons of the Great Victory
The problems of resolving the acute housing crisis in the industrial centers of the Urals in the initial period of the Great Patriotic war
No full textБУДНИКОВ Юрий Иванович, кандидат исторических наук, доцент, кафедра отечественной и зарубежной истории, Южно-Уральский государственный университет (Челябинск, Россия). E-mail: [email protected]
Y. I. Budnikov, South Ural State University, Chelyabinsk, Russian Federation,
[email protected]Анализируются основные документы ЦК ВК П(б), СНК ССС Р, определившие в годы Великой Отечественной войны политику государства при решении сложнейшей проблемы наделения жильем миллионов рабочих, членов их семей, эвакуированных из временно захваченных врагом областей. Рассматривается разносторонняя работа партийных, советских и хозяйственных организаций Урала по созданию собственной материально-технической базы стройиндустрии, развертыванию массового строительства и неудач в деле массового жилищного строительства,
автор в заключении приходит к выводу, что уральцам в тяжелейших условиях начала войны удалось в значительной мере разрешить кризисную жилищную ситуацию, обеспечить крышей над головой миллионы трудящихся. Это благотворно повлияло на производственную активность тружеников тыла, ковавших оружие Великой Победы. Analyzes the main documents of the Central Committee of the CPSU(b), SNK, which defined the years of the great Patriotic war the policy of the state in solving complex problems of provision of housing for millions of workers, their families, evacuated from the temporarily occupied enemy areas. Considered a versatile work of party, Soviet and economic organizations of the Urals to create its own material-technical
base of construction industry, the deployment of large-scale construction of a simplified housing for the evacuees in conditions of acute housing crisis initial period of the war. The author focuses on the operational activities of the regional authorities, managers of industrial enterprises and construction companies to expedite housing construction, development of new organization of construction works, the production technology of local materials, selection of optimum variants of development towns and urban neighborhoods.
In article used materials from the archives, which are mostly for the first time introduced into scientific circulation. Do not conceal the great difficulties, unresolved problems, errors and failures in the mass housing construction, in the conclusion author comes to the conclusion that the Urals in the hardest conditions of the war was largely to resolve the crisis of housing, to provide shelter to millions of workers. It had a positive impact on the production activity of workers, forge a weapon of great Victory
Highly qualified scientific personnel in renewable energy in 2000-2021: postgraduate studies, dissertation councils, scientific supervisors
No full textThe basic information about the postgraduate studies of 7 technical universities and one scientific institution, in which in 2021 the training of scientists in the direction of 14.06.01 - Nuclear, thermal, renewable energy and related technologies with specialization 05.14.08 – Energy installations based on renewable energy types was conducted. A total of 83 people were enrolled in them in 2021. The results of the analysis of the defenses of 117 Candi-Danish dissertations prepared by technical universities on VE from 2000 to 2021 are presented. with an indication of the leading organizations in terms of the number of protections, distribution by types of RE in general for all organizations and for the three leading ones. The data of 13 doctoral dissertations defended in 1998-2021 in the technical sciences of VE with their distribution by subject are presented. It is noted that the scientific level of dissertations is determined by the personality of the head of dissertations. The list of 12 scientific supervisors who have prepared three or more graduate students in VE for the defense is given
Automated system for analysing the process of plant micropropagation
No full textSee the retraction notice E3S Web of Conferences 420, 00001 (2023), https://doi.org/10.1051/e3sconf/20234200000
RETRACTED: Automated system for analysing the process of plant micropropagation
No full textSee the retraction notice E3S Web of Conferences 420, 00001 (2023), https://doi.org/10.1051/e3sconf/20234200000
The Use of Microwave Energy at Thermal Treatment of Grain Crops
No full textThermal treatment is used for different grain crops during the processes of drying, disinfection, and preparation to feeding, etc. The high cost of the processes is caused by the cost of energy and the energy-output ratio of the processes. The development of the processing regimes with the use of electric technologies in general and electromagnetic fields in particular can reduce the cost of the mentioned processes. When IR and MW fields are used, there occurs the direct heating of the grain material without the coolant, due to the effect of the field on water molecules in the kernels. As the grain is a colloid capillary-porous substance, moisture can be in a bound or free state that affects the properties of the material and the thermal processes in it. The use of the special programs gives vast possibilities for the design of such equipment. Using of MW fields allows reducing the cost of the thermal treatment 15-20% depending on the process and type of the processing material. </jats:p
Studying of the dielectric loss factor of grain by indirect method
No full textSignificant losses of grain crops at various stages of cultivation, harvesting, post-harvest processing and storage dictate the need to technologies and equipment for these processes. Currently, one of the most promising directions in the field of heat treatment of grain is the use of combined influence methods with the use of electrophysical effects. The purpose of this work is to develop and test a method for measuring the dielectric loss factor by an indirect method, which makes it possible to control the humidity of grain material exposed to microwave. The paper presents the equipment and the design of the experimental installation. The results of the experiment were subjected to regression analysis. The results of experimental studies and dependencies can be used for modelling microwave effects on agricultural bulk materials in electromagnetic modelling software, such as CST Studio
The Mechanism of Intensification of Heat and Moisture Transfer During Microwave-Convective Processing Grain
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