bluuebunny/crossref_metadata_2025 huggingface dataset:
THE CHOICE OF COATING MODES FOR THE GALVANOCONTACT METHOD
Authors:   Voronezh State Agrarian University named after Emperor Peter I, Voronezh, Russian Federation, ZHACHKIN S.YU. , ZAVRAZHNOV A.I. ,   Michurinsk State Agrarian University, Michurinsk, Russian Federation, TRIFONOV G.I. ,   Military Educational and Scientific Center of the Air Force "Air Force Academy named after Professor N. E. Zhukovsky and Yu. A. Gagarin", Voronezh, Russian Federation, PUSTOVETOV A.V. ,   Voronezh State Agrarian University named after Emperor Peter I, Voronezh, Russian Federation
Published: October 2024

The paper presents studies aimed at studying the movement of the tool when applying dispersion-hardened composite electroplating coatings and its effect on the change in the area of plastic contact. (Research purpose) The research purpose is obtaining analytical dependences that make it possible to perform calculations for frictional contact of friction surfaces when applying dispersion-hardened composite electroplating coatings. (Materials and methods) Conducted research based on the methods of system analysis and the theory of formation of the surface layer. We performed experimental studies using modern standardized techniques on certified equipment. The obtained data were processed using the analytical modeling method, which is aimed at obtaining dependencies linking the desired characteristics with the specified parameters. (Results and discussion) Based on the conducted studies of plastic contact during the application of copper and iron composite coatings, it was concluded that the contact area increases, which requires a shift by a distance equal to 30-40 or more diameters of the contact spots. Consequently, with static friction, the in-crease in the contact area does not exceed 10-15 percent, and it is accompanied by a significant change in the microgeometry of the surfaces. (Conclusions) Theoretically and experimentally proved that the microgeometry of rubbing surfaces is reproduced, the transition from static contact to motion will not cause a significant change in the contact area. These conclusions are confirmed by a change in the convergence of two rough surfaces during sliding. It is possible to perform calculations for friction contact with sufficient accuracy using the formulas obtained for static conditions.
FROM THE EXPERIENCE OF OPERATING LIAZ 529222 BUSES
Authors:   Penza state university of architecture and construction, Penza, Russian Federation, RODIONOV YU.V. , NUGAEVA V.O. ,   Penza state university of architecture and construction, Penza, Russian Federation
Published: October 2024

With a slight mileage of buses of the Likinsky Bus Plant, the engines alternately began to fail with the destruction of cylinder blocks and pistons, the occurrence of compression rings. (Research purpose) The research purpose is searching out for the causes of increased engine oil consumption and emergency failure of foreign-made internal combustion engines. (Materials and methods) The D0836LOH65 engine was chosen as the object of research. We studied the geometry and hardness of oil-removing piston rings. We used a Digital Micro microscope with magnification up to 400x and an electronic hardness tester in accordance with the recommendations of the regulatory and technical documentation. (Results and discussion) It was established by visual inspection that there is uneven wear on the working surfaces of the oil-removing piston rings, and defects in the form of porous formations on the end ones. Wear was recorded in the upper part of the cylinders with the formation of a ledge, black carbon deposits appeared on the bottoms and on the heat belt of the pistons, small longitudinal scratches appeared on the skirts of the pistons. Damage to the inserts has a form characteristic of working in the so-called oil starvation mode. It was determined that the cause of damages in engine parts is the non-compliance of the material of the oil-removing rings, both new and used, with the requirements of the standard for the difference in hardness in a single ring and the total hardness of the surface of the rings. (Conclusions) The detection of the defect is related to the manufacture of rings, the non-compliance of the material of the compression rings of foreign-made engines with the requirements of the domestic standard and the increased consumption of engine oil, which caused emergency damage to diesel engine parts. The transition to the use of domestic internal combustion engines is relevant and necessary in modern conditions. From a practical point of view, it is recommended to check the surface hardness of new compression rings before installation during engine repairs.
MODEL FOR PREDICTING FORECASTING THE RESOURCE OF HARDENED HAMMERS OF FEEDCRUSHING MACHINES
Authors:   Novosibirsk State Agrarian University, Novosibirsk, Russian Federation, AGAFONOVA E.V. , MAMONOV O.V. ,   Novosibirsk State Agrarian University, Novosibirsk, Russian Federation, KONOVODOV V.V. ,   Novosibirsk State Agrarian University, Novosibirsk, Russian Federation
Published: October 2024

During operation, the working parts (hammers) of hammertype feed-crushing machines are subjected to intense wear. The maximum wear of the working edge of the hammer is considered to be wear up to the main axis of symmetry. To reduce wear and increase the service life of the hammer, a technology of combined hardening of the working edge of the hammer with a hard alloy plate using iron-carbon solder is proposed. This work is based on theoretical substantiations and experimental processing of production tests of hardened hammers. (Research purpose) The research purpose is searching for the regularities of the wear process of hardened hammers from operating time during the operation of the feed crushing machine. (Materials and methods) The design and technological parameters and mechanical properties of the materials of the hardened hammer were substantiated. Methods of processing the results of production tests based on mathematical statistics and reliability theory, comparative methods of analysis of hardened and serial hammers were presented. (Results and discussion) The results of studies of experimental hardened hammers were presented, in which the mechanical strength and the magnitude of the diffusion zone of the soldered connection of a hard alloy with the material of the hammer and the iron-carbon solder used in this case were determined. We carried out a theoretical analysis of the dependence of hammer wear on operating time and constructed a mathematical model for predicting the life of a hardened hammer. It was determined as a result of theoretical studies that with the combined hardening of the working edge of the hammer of the feed-crushing machine with a hard alloy VK8 using iron-carbon solder, the maximum operating time increases by 2.76 times. (Conclusions) The results of theoretical studies and production tests prove that the resource of hardened hammers has increased 3.5 times compared to serial ones. The constructed mathematical model for predicting the life of hardened hammers accurately reflects the results of experimental values of the dependence of hammer wear on operating time.
RISK IN THE TASKS OF ASSESSING THE RELIABILITY OF POWER SUPPLY SYSTEMS
Authors:   Nizhny Novgorod State Engineering and Economic University, Knyaginino, Nizhny Novgorod region, Russian Federation, PAPKOV B.V.
Published: October 2024

The problem of assessing and accounting for all types of risks is one of the stages of designing and operating modern power supply systems in normal, emergency and post-emergency modes. The presence of uncertainty due to the heterogeneous emergency situations and their consequences, the vagueness and incompleteness of the initial data, the indistinguishability of the risk of small probabilities significantly complicates the task. (Research Purpose) The research purpose is assessing and accounting for the main types of risks of modern power supply for various categories of consumers. (Materials and methods) Theoretically, the risk C=C(s,y) of the action of the elements of the power supply system is a function of the state of the medium s (m-dimensional random variable s≡(s1,s2, …,sm) and the solution y (r-dimensional random variable y≡(y1,y2, …,yr). The quantitative risk criterion is determined by a collective expert assessment of its average value and the mean square deviation, the acceptability of which is assessed by the variation coefficient γ. It was found that at γ ≤ 0.1 the fluctuation of the results is weak, at 0.1 ≤ γ ≤ 0.25 it is moderate, and if γ ≥ 0.25 it is high. Then it is necessary to clarify the information. (Results and discussion) When performing the study, it was found that with the exponential law of time distribution before the transition of the power supply system consisting of m elements to an unfavorable E-state, the risk is determined by the frequency ωc of such a transition. An approach based on the principles of the theory of potential efficiency and the concept of an extremely possible event, the probability of which cannot be neglected, is proposed. In accordance with operating practice, the interval 10-5...10-8 is reasonable for annual individual risk. (Conclusions) The improved methodology for assessing risk situations affecting the functioning of the consumer and its power supply system allows us to calculate and take measures in the management and operating modes of the enterprise. The examples show the possibilities: 1) assessment of the probabilities of a fine for exceeding the contractual values of the maximum possible load, which constitutes the consumer’s risk; 2) selection of the load to be switched off when there is a power shortage in the power system; 3) assessment of the required level of consumer reliability, taking into account the risk of obtaining the calculated consequences of sudden power supply disruptions.
DETERMINATION OF THE PREDICTED VALUES OF NON-SINUSOIDAL VOLTAGE BASED ON STATISTICAL ANALYSIS
Authors:   Irkutsk State Agricultural University named after A.A. Ezhevskiy, Molodezhnyy, settlement, Irkutsk district, Irkutsk region, Russian Federation, TRETYAKOV A.N. , KUDRYASHEV G.S.
Published: October 2024

A significant problem of ensuring the quality of electricity, including the sinusoidal voltage in the distribution grids of energy systems and power supply grids, arose with the growth and use of equipment with a nonlinear load characteristic. Modernization of production and an increase in its energy efficiency are associated with the use of such electrical equipment. In this regard, in the last decade, the problem of the higher harmonics has become one of the important consequences of global innovative development throughout the world and in Russia in particular. However, the creation of conditions for the operation of all electric receivers in a power system with poor quality of electrical energy causes certain difficulties. (Research Purpose) The research purpose is determining the predicted values of non-sinusoidal voltage based on statistical analysis in distribution grids. (Materials and methods) Methods for analyzing non-sinusoidal voltage and finding deviations from established norms are considered. Studies of non-sinusoidal voltage in distribution grids have been carried out, and critical values of indicators and a constant component have been determined. (Results and discussion) Additional losses from the influence of higher harmonics in distribution electrical grids account for about 4 percent of losses at sinusoidal voltage. In the grids of agro-industrial enterprises, as well as in the grids of traction substations, similar losses reach 17 percent. The maximum value for the entire measurement period is taken as the basis for the measurement result of the harmonic component voltage coefficient, since this approach does not take into account one-time emissions, which in the general structure do not affect the operation mode of electrical equipment. Measurements were carried out in all electric grids on the low and medium voltage side in the Irkutsk region, and the paper presents the results of measurements in the southern electric grids of Irkutsk and its suburbs. (Conclusions) Studies have revealed the presence of a constant component of the coefficient of harmonic components and single emissions exceeding the average operating values. The main regularities of the non-sinusoidal voltage coefficient for the measurement period and the effect on the operating modes of electrical equipment connected to distribution grids are determined.
JUSTIFICATION OF GENERATOR POWER FOR REDUNDANCY IN PARTITONED POWER GRIDS
Authors:   Federal Scientific Agroengineering Center VIM, Moscow, Russian Federation, VINOGRADOV A.V. , KRAMSKOY S.V. ,   Orеl State Agrarian University, Orеl, Russian Federation, LANSBERG A.A. ,   Federal Scientific Agroengineering Center VIM, Moscow, Russian Federation, VINOGRADOVA A.V. ,   Federal Scientific Agroengineering Center VIM, Moscow, Russian Federation
Published: October 2024

Sectioning of 0.4 kilovolt power lines allows you to isolate undamaged areas and isolate them from damaged ones. The use of mobile energy platforms to provide power to consumers connected to undamaged sections of lines allows them to reduce the under-supply of electricity and increase the reliability of power supply. The issue of substantiating the required power of generators of mobile power platforms for the provision of power backup to consumers connected to partitioned lines remains relevant. (Research purpose) The research purpose is justificating the required capacity of the mobile energy platform when implementing the redundancy of power supply to rural consumers connected to sectioned power grids of 0.4 kilovolts. (Materials and methods) Carried out a review of literary sources. We have developed a methodology for determining the required power of a mobile power platform generator, it includes a search for statistical data on 0.4 kilovolt power grids. The average lengths of 0.4 kilovolt power transmission lines, capacities and load factors of transformer substations, the number of outgoing lines from one transformer substation, depending on its capacity, were calculated. The range of specific capacities connected to power transmission lines has been calculated. The average number of sections of the partitioned line and their estimated length were determined. (Results and discussion) We searched for statistical data on the example of one of the power grids companies. The specific power consumed from the 0.4 kilovolt transmission line was calculated, which ranged from 9.6 to 32.2 kilowatts per kilometer of the line. The maximum length of the 0.4 kilovolt section of the line allocated by sectioning was found to be 0.5 kilometers; taking this into account, as well as the ratio characterizing the load growth, own consumption of the mobile power platform, and others, the range of design capacities of generators for reserving partitioned transmission lines was determined. (Conclusions) It was shown that the minimum design power values of generators for 0.4 kilovolt partitioned power lines are in the range from 9.4 to 15.6 kilovolt-amperes, the maximum - from 21.4 to 36 kilovolt-amperes.
TECHNICAL AND TECHNOLOGICAL ASPECTS OF LASER WEEDING OF PLANTS
Authors:   Federal Scientific Agroengineering Center VIM, Moscow, Russian Federation, MARCHENKO L.A. , KUTYREV A.I. ,   Federal Scientific Agroengineering Center VIM, Moscow, Russian Federation
Published: October 2024

The creation of technologies and autonomous robots for laser weeding of agricultural crops is a promising and relevant direction in the fight against weeds, which will allow for high-precision and targeted processing of crops without the use of herbicides. (Research Purpose) The research purpose is analyzing technologies and technical means for laser weeding of plants. (Materials and methods) Using the aspect approach, the analysis of domestic and foreign scientific publications on the use of laser technologies in agricultural practice was carried out. (Results and discussion) It has been established that laser weeding technology includes several key components: mobile robotic devices, computer vision systems for plant recognition, navigation systems for precise positioning of robotic platforms in field conditions and laser systems for high-precision weed eradication. Artificial intelligence and deep learning methods are preferred for plant recognition. CO2 lasers, fiber and diode lasers are mainly used as laser energy sources. The most effective solution for laser weeding is a ground-based mobile robotic platform with a block-modular design, which is equipped with integrated laser systems for processing plants, weed recognition systems, as well as various navigation systems. (Conclusions) It is determined that carbon dioxide lasers with wavelengths of 9.3, 10.2 and 10.6 micrometers and power up to 100 watts are used for laser weeding. Diode lasers operate in the wavelength range of 450-900 nanometers with pulses lasting up to tenths of a second and a power of 5-25 watts, forming a contact spot measuring 0.5-2.5 millimeters. It has been established that fiber lasers with high peak power of short pulses and compact dimensions with a wavelength in the visible and near infrared ranges of 0.75-1.4 micrometers are promising for laser weeding. To treat weeds, carbon dioxide lasers require the least amount of energy - up to 125 Joules per weed at a wavelength of 10,600 nanometers. When using wavelengths of 1908, 940 and 532 nanometers (fiber, diode and solid-state lasers), 230, 237 and 1400 Joules are spent per weed. It is also determined that the height of treatment of weeds with a laser beam is 0.3-0.6 meters.
ANALYSIS OF THE CONFIGURATION OF RURAL ELECTRICAL GRIDS10 KV
Authors:   Federal Scientific Agroengineering Center VIM, Moscow, Russian Federation, LANSBERG A.A. , VINOGRADOV A.V. ,   Federal Scientific Agroengineering Center VIM, Moscow, Russian Federation
Published: October 2024

Currently, the works of domestic and foreign scientists explore options for improving medium-voltage electrical grids by introducing distributed automation tools. However, statistical data on the configuration of existing rural power grids of 10 kilovolts are not sufficiently presented in the literature. (Research Purpose) The research purpose is analyzing the configuration of rural electrical grids of 10 kilovolts, taking into account the transformer substations connected to them and the types of wires used. (Materials and methods) The analysis of 165 supporting schemes of 10 kilovolt overhead power transmission lines of one of the electric grid companies was carried out. (Results and discussion) It is found out that the arithmetic mean of the length of the overhead line of 10 kilovolts to the most remote point of the grid is 9.2 kilometers, and the total length is 13.2 kilometers. It is found that that the specific power per kilometer of the rural grid of 10 kilovolts is 82 kilovolt amperes per kilometer. At the same time, an average of 5 taps are from one 10-kilovolt line, and the average length of the them is 0.68 kilometers. It was also revealed that 72 percent of the total length of the analyzed power transmission lines of 10 kilovolts does not meet the requirements for mechanical strength under icy and wind loads. (Conclusions) The analysis reflects the current configuration of rural 10 kV power grids in the Orel region, while 10 kV overhead lines in other regions may have their own characteristics.
DEVELOPMENT OF THE DESIGN AND JUSTIFICATION OF THE OPERATION PARAMETERS OF THE PASTEURIZER WITH THE RECEIVED HEAT
Authors:   Kemerovo State University, Kemerovo, Russian Federation, POROKHOV A.N.
Published: October 2024

The use of induction heating for pasteurization of food raw materials is proposed. (Purpose of the study) Creation of an energy-efficient method of heat treatment of food raw materials using a pasteurization tank heated by induction currents. (Materials and methods) The pasteurization container is made of AISI 304 stainless steel. Plates made of AISI 430 ferritic stainless steel are welded on the tank to localize the induction heating site. The frame for the inductor was developed using the Fusion 360 automated programming system and printed on a 3D printer made of a polymer material, the choice of which is determined by the maximum operating temperature. A litecenter is selected as the winding of the inductor. Attention is paid to the constructive solution of the location of inductors. The design of the basic electrical circuit of the power part of the prototype device was carried out in the multifunctional program for computer-aided design of electronic circuits Proteus 7.10. (Results and discussion) A prototype induction type installation for pasteurization of food raw materials has been developed. The proposed solution for the arrangement of inductors leads to uniform and rapid heating of the container material and, accordingly, the raw materials in contact with it. The choice of a litzendrate in the manufacture of an inductor made it possible to increase the quality factor at the operating (resonant) frequency of the power unit. Using a thermal imager, thermographic images show a change in the thermal field when the container is heated by different devices. At the same time, the time to reach the required heating temperature with the help of the developed inductor system increases. To control the operation of the prototype pasteurization device, a hardware and software complex has been developed that allows you to set pasteurization parameters, control the process and create a report on the pasteurization session. Thanks to the developed control system, the electromagnetic field can be precisely controlled, which makes it possible to easily heat a small area of the material to a high temperature without affecting the surrounding space. (Conclusions) The proposed pasteurization method is more energy efficient than other methods such as resistive heating, since less energy is required for the same amount of material. The use of induction heating for pasteurization plants of raw materials allows them to be made energy efficient, less bulky, and more environmentally friendly.
ANALYSIS OF THE MARKET FOR HIGH-POWER AGRICULTURAL TRACTORS IN THE RUSSIAN FEDERATION
Authors:   Kaluga Branch of Bauman Moscow State Technical University, Kaluga, Russian Federation, SYSENKO N.G. , PONOMAREV A.I. ,   Kaluga Branch of Bauman Moscow State Technical University, Kaluga, Russian Federation, BULYCHEV V.V. ,   Kaluga Branch of Bauman Moscow State Technical University, Kaluga, Russian Federation, SIDOROV V.N. ,   Kaluga Branch of Bauman Moscow State Technical University, Kaluga, Russian Federation
Published: October 2024

The modern level of technical development makes it possible to produce high-power agricultural tractors and at the same time reduce the specific weight of the unit. Most of the US and European markets are represented by tractors up to the 2nd traction class, while in Russia there is a steady increase in the use of tractors of traction class over 2. It is known that an increase in the power of machine-tractor units leads to an increase in nominal operating speeds, as well as fuel and lubricants costs. There is also a decrease in the total mass of machine-tractor units, which, while increasing power, reduces the efficiency of using the unit when performing agrotechnological operations. Underloading of a high-power and low-weight unit leads to incomplete and irrational use of the life of machine-tractor units laid down by the manufacturer. (Research purpose) The research purpose is determining the share of high-power equipment in the markets of the Russian Federation. (Materials and methods) Studied the market of machine-tractor units in the Russian Federation on the basis of well-known works and information on technical data provided in open sources by manufacturers. (Results and discussion) We obtained diagrams describing the percentage of world and domestic agricultural tractor manufacturers in the Russian markets, their price range, the share of countries producing tractors of different traction classes, the number of high-power equipment for various traction classes. Based on the analysis of technical characteristics, we have compiled a summary table of the energy saturation of machine-tractor units in the Russian market. The specific power of each tractor model under study was calculated. The specific power of tractors within each traction class was brought. (Conclusions) It was shown that the results obtained indicate a high specific power of the tractor market in the Russian Federation.
TECHNOLOGY OF NON-THRESHED EARS OF WHEAT OF EARLY STAGES OF RIPENESS INTO FISH FOOD PROCESSING: PROBLEMS AND SOLUTIONS
Authors:   Аграрный научный центр «Донской», BACHEVNIKOV O.N. , BRAGINETS S.V. ,   Аграрный научный центр «Донской», DEEV K.A. ,   Аграрный научный центр «Донской», TATARNIKOV G.M. ,   Донской государственный технический университет
Published: October 2024

The grain crops’ nonthreshed ears of the early stages of ripeness as raw materials for feed preparation can be used. The purpose of this study was: nonthreshed ears of early ripeness phases into food for omnivorous fish processing technology developing and substantiating. This study object - was the technological process of granulated feed from nonthreshed ears of early ripeness phases preparing. A preliminary technological scheme for granular feed preparation from ears had been developed. An experimental test had revealed shortcomings in technological process of feed from nonthreshed ears producing implementation, reducing its energy and economic efficiency and the processing line’s productivity and feed quality’s negative affecting. Possible solutions had been developed. For granular feed production from early ripening phases ears technology effective implementation, it is necessary the raw materials’ drying and grinding as technological operations, as well as its grinding and mixing to combine, for which new technological solutions were proposed. An improved technological scheme for granular fish feed from nonthreshed ears of early ripening producing has been developed, including combined technological operations. New technical means to be developed and already developed into the new scheme are integrated. The results of the study had shown that the technology of granulated feed from nonthreshed ears producing - is an effective means of livestock production’s profitability increasing, since feed produced by this technology using contains more protein than traditional one based on threshed forage grains, as a result fewer expensive protein additives in its composition can be included. The introduction of a new technology for the granular fish feed from nonthreshed ears preparation will make it possible early grain crops harvesting by the ochesmethod using for the feed nutritional value increasing.
ROBOT-ASSISTANT FOR MANURE REMOVAL ON FARMS
Authors:   Российский государственный аграрный университет - МСХА им. К.А. Тимирязева, KRAVCHENKO V.N. , KORSHIKOV S.A. ,   Российский государственный аграрный университет - МСХА им. К.А. Тимирязева, BURANOV R.V. ,   Российский государственный аграрный университет - МСХА им. К.А. Тимирязева
Published: October 2024

The robots’ use for manure cleaning on dairy cattle farms has several advantages. First of all, it allows to reduce physical stress on employees and work conditions improving. Robots can monotonous heavy tasks, such as manure collection, without the constant human involvement need performing. In addition, manure cleaning robots can be designed for optimal farm available space use making, as well as the environment negative impact minimizing. The cleaning robots’ technical equipment for dairy farms manure removal includes various sensors, cameras, navigation systems and other innovative solutions that allow them tasks with high accuracy and autonomy effectively to perform. However, it must be borne in mind that the robots introduction of on farms requires significant investments in development, acquisition and maintenance of such systems. Therefore, for this project successful implementation, it is necessary the economic feasibility and practical benefits’ assess of manure cleaning robots’ introduction to analyzing. Such robots will be similar to each other, that will their cost reduce, and their price directly affect the product’s profitability. Based on the analyzed information, the manure cleaning robots’ main technical characteristics with their advantages and disadvantages are revealed: the speed of robots is in the range between 6,2 and 10 m/min, productivity - is from 300 till 350 m2/h. The greatest interest for domestic production by manure cleaning robots using a scraper paired with a rotary-stator vacuum mechanism is represented. The data obtained as a study result can be used in manure cleaning robots new samples design, as well as by farmers when choosing a particular model on their farm purchasing.
APPLICATION OF THE BIOGAS COGENERATION INSTALLATION FOR GREENHOUSE COMPLEX BY HEAT SUPPLY PROVIDING
Authors:   Иркутский государственный аграрный университет им. А.А. Ежевского, FALCHEVSKAYA YU.A. , EVTEEV V.K. ,   Иркутский государственный аграрный университет им. А.А. Ежевского, VASILIEV F.A. ,   Иркутский государственный аграрный университет им. А.А. Ежевского
Published: October 2024

For the yearround population by vegetables supplying, it is necessary enclosed area’s crops growing. At the same time, vegetable production’s cost prevailing in the Irkutsk region is thermal energy to the greenhouse’s complex supplying. One of the ways of this problem solving is thermal energy by a biogas cogeneration’s installation producing. To provide heat supply due to such biogas cogeneration installation, biogas that consists of 55-75% methane is used, the rest are the impurities. Biogas in methane tanks due to the livestock farms’ organic waste anaerobic digestion is produced. Thus, at the same time, the problem of livestock by products in agricultural enterprises recycling is being solved. It is known that there are no greenhouses’ operating all year round in the Irkutsk region. The task is to find out if cattle farm will be able a greenhouse complex with an area of 500 m2 with by products’ processing the thermal energy’s necessary amount providing. An analytical dependence is presented for the thermal energy’s required amount calculate that by a biogas cogeneration installation for a greenhouse complex producing. The Irkutsk region greenhouse complex thermal processes calculation conditions’ was carried out. The temperature of the coldest five day period with a security of 0,92 was -33°C. Heat losses through structures enclosing, transoms and due to infiltration are calculated. A heat month losses’ graph is constructed. It was revealed that heat’s most losses through structures enclosing are lost. The calculations provide for soil heating as well. The heating devices required surface which will be 207 m2 was also calculated. Based on previous studies, it was revealed that the cattle farm’s theoretical energy potential a greenhouse complex with its own thermal energy can providing.
THE LIVESTOCK CONSUMED ENERGY RESOURCES PAY’S PRICES IMPROVING
Authors:   Российский государственный аграрный университет - МСХА им. К.А. Тимирязева, VODYANNIKOV V.T.
Published: October 2024

At large scale dairy producing enterprises, having an innovative technical-and-technological resource in livestock there is an expanded type of reproducing. At the same time, scientific-and-technological progress in the technical-and-technological production’s improvement in animal breeding, feeding and other areas of dairy cattle management, ensuring a products’ unit in labor intensity and cost reducing is being achieved. Despite the Russian Federation Government’s measures by the agriculture development, dairy cattle breeding have continued a tendency to the number of cows is facilitated by a long industry production cycle reducing, as well as weak material-and-technical base and dairy farms and complexes’ an inadequate energy system supplying. As a result, the milk production sustainability in the regions is low. The methodology of the industry’s power supply systems technical-and-economic assessment in the context of accelerating technical-and-technological reequipment and livestock’s reliable and high quality energy supply to importance is presented. The effectiveness of electrification of technological processes’ technical means for the industry products’ producing using largely depends on the quality of power supplying. In addition the electricity supply reliability, it is necessary the energy supply system efficiency by the electricity’s supply quality parameters influence taking into account the level of economic losses from insufficient reliability of rural power grids increasing. A calculating method for economic feasibility of local energy supply systems using in livestock has been proposed, that has been tested in the divisions of a large, closed cycle meat and dairy products "from field to counter", agroholding "Agropromkomplektatsiya" producing. The results confirming the economic feasibility of local energy supply systems for large scale production using study and of livestock products processing. The energy production by the energy complex cost turned out to be almost in 40% lower than the electricity tariff and more than in 20% lesser than the thermal energy tariff establishing.
Risk Factor Analysis and Algorithmic Approach for Managing Deep Brain Stimulation Device-Related Wound Complications
Authors: Yoo Hyokyung , Seo Junggyo , Paek Sun Ha , Chang Hak
Published: October 2024

Background: Although implanting deep brain stimulation (DBS) devices carries up to a 15% risk of complications, optimal management strategies remain poorly understood. This study aimed to review the risk factors for wound complications of DBS device implantation and develop an algorithm for proper management.Methods: Patients with Parkinson disease who underwent bilateral subthalamic nucleus DBS device implantation between 2005 and 2022 were retrospectively reviewed. All DBS-related wound complications such as infection, dehiscence, erosion, and displacement were recorded, and factors associated with device explantation were also assessed.Results: A total of 398 patients underwent DBS device implantation using 796 electrodes and implantable pulse generators. During the mean follow-up of 9.8 ± 5.5 years, 28 patients (7.0%) experienced wound complications that required reoperation, including 14 infection (50.0%), 22 dehiscence (78.6%), five skin erosion (17.9%), and two device displacement (7.1%). Complications were resolved with a single reoperation in 13 patients (46.4%), while nine patients underwent 2–3 surgical procedures (32.2%), and six patients in 6–8 operations (21.4%). The device was salvaged in 16 patients (57.1%) and removed in 12 (42.9%). Infection (P = 0.010), shorter time interval from device implantation to complications (P = 0.022), higher C-reactive protein levels (P = 0.026), methicillin-resistant Staphylococcus aureus growth (P = 0.044), and history of multiple previous revisions (P < 0.001) were associated with device removal.Conclusion: To maximize the therapeutic benefit of DBS and minimize the time, effort, and cost required for revision, temporary explantation in early stages followed by reimplantation of the device after the wound subsides should be considered in high-risk cases.
FROM ART TO ECONOMY AND BACK: Initial steps towards the understanding of resonance, affect and love in nomadic systems through the case study of Lisbon Drawing Club
Authors: Lígia Fernandes
Published: October 2024

This research builds on 20 years of combined experience in economics and art, exploring how economic and relational systems shape emotional landscapes. The study investigates the intersection of art and economy through the lens of love, using resonance and affect to understand their relational dynamics. With a focus on nomadic practices exemplified by the Lisbon Drawing Club, the research examines how community-oriented art fosters relational bonds and emotional responses, particularly through drawing sessions. Employing autoethnographic and desire-based approaches, the project integrates mapping, community engagement, and artistic experimentation to deepen insights into art-economy relationships.
La construcción del conocimiento a partir de los proyectos de investigación de cátedra
Authors: Neme Eliana
Published: October 2024

Research has always been a challenge and, in the social imaginary, it is a task carried out by expert professionals, with extensive mastery of theoretical and methodological issues. This means that research practice is presented as a utopia that is, sometimes, unachievable by those who do not have the aforementioned expertise, distancing it as an alternative for intervention and articulation between theory and the contributions provided by the context. In this work, it will be presented how, from the Career of Bachelor in Psychopedagogy of the Catholic University of Santiago del Estero and thanks to the proposal generated from the Prosecretariat of Research of the Faculty of Health Sciences, the research processes, tied to the chairs of the curriculum, made it possible for both teachers and advanced students to carry out processes of inquiry into reality, from a psychopedagogical position, and, at the same time, to develop complex competencies linked to the research.
Cloud Computing Performance Evaluation Model for Open and Distance Learners in Nigeria
Authors:   Department of Computer Science Faculty of Computing National Open University of Nigeria, Osang F.B. , Atuluku R.A. , Garki F. S.
Published: October 2024

The increasing need for fast, secure and dynamic processing of information has necessitated the wide scale adoption of cloud computing. The educational sector especially the open and distance learning institutions are not left out of the need for distributed technology. This study presented a model that provided insight into the pre and post usage adoption variables associated with cloud computing adoption and performance in open and distance learning (ODL) setting. Partial Least Square (PLS) was adapted to test seven hypotheses on the causal relationship between the variables. Five out of the seven hypotheses were supported. The pre-usage and satisfaction oriented constructs showed more significant contributions in determining performance impact than the task technology fit oriented constructs. The study also provided insights on user preferences for decision making by educational institutions, service providers, business owners and government. Keywords: Cloud Computing, TUSPEM, Performance, Utilization, Cost, Ease Of Use
Investigation on The Effect of Home Visits Made by Teachers on Students Undesired Behaviors in the Classroom
Authors: Kabaklı-Çimen Latife , Macit Selman
Published: October 2024

This research aims to examine the effect of home visits made by teachers on undesirable student behaviors. This research was conducted using the general survey model and experimental design. The study group was determined according to the convenience and purposeful sampling method. The research was conducted in the 2022-2023 academic year with a total of 6 teachers and 120 students from a private primary school in Istanbul, including three teachers who made home visits, 60 students who were visited, and three teachers who did not make home visits and 60 students who were not made a home visit. Research data was obtained using the Undesired In-Class Student Behaviors Questionnaire. In the analysis of data, independent samples t Test, Paired Samples t Test and for Repeated Measures (Repeated Measures ANOVA) were used. As a result of the research, a statistically significant difference was found between the post-test total scores of the experimental group and the control group. As a result, it has been determined that home visits cause a decrease in undesirable student behaviors. Therefore, it is recommended that home visits be increased to reduce undesirable student behavior.
TPACK and its Contribution to Develop Differentiated Learning in Elementary School
Authors: Mardati Asih , Maryani Ika , Suyatno Suyatno
Published: October 2024

This research aims to find out how teachers' TPACK can contribute to their skills in developing differentiated learning. This research uses a type of correlational research. The population in this research is elementary schools that have used the independent curriculum in the city of Yogyakarta. The sample in this study consisted of 20 subjects, and the sampling technique used was stratified random sampling. The data collection technique used was a questionnaire. The instruments in this research were questionnaire grids and questionnaire sheets. The data analysis techniques used are descriptive and inferential statistics. The research results show that the value Sungai Pearson TPACK 0.894 has a positive value, CK 0.783 has a positive value, TK 0.782 has a positive value, and PK 0.869 has a positive value. PCK 0.835 has a positive value, TCK 0.866 has a positive value, and TPK 0.861 has a positive value. It can be concluded that the teacher's TPACK has an influence and is closely related to the teacher's skills in developing differentiated learning
Edênio, um artesão do diálogo na trama dos fios da ciência e da Fé
Authors: Figueira Eulálio Avelino
Published: October 2024

Objetivo apresentar facetas de João Edênio dos Reis Valle. A referência mais emblemática que será efetivamente o fio condutor de toda a apresentação sobre pe. Edênio, fica expresso no título do texto: Edênio um artesão do diálogo na trama dos fios da ciência e da Fé. A metodologia adotada foi de entrevistas com pessoas que, ou por convivo muito próximo (membros da mesma ordem religiosa) ou por convivência nos diversos campos de atuação onde Edênio se notabilizou. Nos debruçamos com maior intensidade na vida do pe. Edênio na congregação dos Missionários do Verbo Divino, esteio de sua formação intelectual, sua formação como presbítero e como cidadão do mundo. Fixou alicerces para seus ideais. Firmou sua personalidade, exerceu e aprimorou a habilidade no diálogo. Como verbita bebeu nos ensinamentos dos fundadores da congregação os santos Arnold Janssen e Jose Freinadmetz. Edênio cativou através da arte do diálogo e da solidariedade. Hábil nas respostas e orientações nos momentos de mais turbulência quando muitas vezes era necessário decidir rumos nas indecisões e nebulosidade. Dados colhidos sobre Edênio estão nas entrevistas, outros são resultado de minha convivência com Edênio, como aluno e, também como colega de ordem. As entrevistas permitem indicar a importância do que recebeu de suas raízes familiares, uma família de tradições de Minas Gerais. De Edenio sua originalidade: dialogar entre a fé e a ciência. Absorveu o ideal de fé tecida no diálogo com a sociedade secularizada, tendo sua vida plantada na raiz da ciência dialogou com a fé.
Utilização da Comunicação Não Verbal Gestual nos Currículos de Licenciatura em Ciências e Matemática
Authors: Donadello Savana dos Anjos Freitas , Andrade Neto Agostinho Serrano de , Groenwald Cláudia Lisete Oliveira
Published: October 2024

Os gestos estão presentes em nosso cotidiano e são uma expressão de linguagem considerada universal e espontânea. Professores e alunos utilizam gestos para se comunicarem naturalmente, incluindo-os em aulas de Ciências e Matemática. À vista disso, o presente artigo tem como objetivo investigar como a comunicação não verbal gestual pode dialogar com os currículos de licenciaturas em Ciências (Física, Química e Ciências Biológicas) e matemática, considerando-a uma das competências importantes que o licenciando deve desenvolver na formação inicial. De natureza teórico-bibliográfica, esta pesquisa buscou em base de dados digitais saber quais o real impacto e a relevância dos gestos nas salas de aula e de que maneira eles podem nelas ser incluídos. Portanto, apresentam-se neste artigo reflexões acerca do currículo das licenciaturas no Brasil e uma proposta de incluir a comunicação não verbal gestual nos currículos das licenciaturas de Ciências e Matemática.
Concepções sobre tecnologias digitais nos currículos dos cursos de formação inicial de professores
Authors: Riedner Daiani Damm Tonetto , Pischetola Magda
Published: October 2024

Este artigo focaliza o uso de tecnologias digitais nos cursos de formação inicial de professores com o objetivo de analisar as concepções sobre tecnologias digitais presentes nos projetos pedagógicos de cursos de licenciatura de uma Instituição Pública Federal de Ensino Superior. A metodologia adotada se pautou na análise temática de conteúdo. As percepções construídas a partir do referencial teórico e dos documentos oficiais permitem enxergar alguns pontos de atenção. Dentre eles, a necessidade da construção de práticas pedagógicas nos cursos de formação inicial de professores, que permitam aos professores em formação terem experiências de aprendizagem com uso de tecnologias digitais pautadas na criação, na autoria, no exercício da criatividade, na colaboração e no protagonismo docente.
.
pedagogias de gênero no cotidiano escolar como crítica às tentativas de silenciamento da agenda conservadora
Authors: Bido Eloísa , Furlin Neiva , Graupe Mareli Eliane
Published: October 2024

O objetivo deste artigo é identificar os conceitos de pedagogias de gênero e evidenciar como as questões de gênero continuaram sendo mobilizadas no ambiente escolar apesar das tentativas de silenciamento da agenda conservadora para a educação. Trata-se de um estudo bibliográfico e de campo, cujos dados foram levantados por meio de entrevistas semiestruturadas com professoras que atuam nos anos iniciais do ensino fundamental, em escolas públicas de um município do Oeste catarinense. Os resultados apontam que as pedagogias de gênero são constantemente mobilizadas no cotidiano escolar, ora reproduzindo relações desiguais, ora produzindo relações igualitárias e justas. Assim, a disputa conservadora pelo silenciamento de gênero nas políticas educacionais não elimina sua recorrente enunciação, que ocorre por meio de normas e práticas escolares.
Pemanfaatan Buku Ajar Elektronik Interaktif Untuk Pembagunan Berkelanjutan Sebagai Solusi Dalam Meningkatkan Kesadaran Berkelanjutan Siswa SMP
Authors: Sihombing Rizky Agassy , Muslim Muslim , Rahman Taufik , Agustin Mubiar
Published: October 2024

Studi ini menyoroti pentingnya penggunaan buku ajar elektronik berbasis Education for Sustainable Development (ESD) bagi siswa SMP, dengan fokus pada pembelajaran yang interaktif dan multidireksional untuk meningkatkan kesadaran akan keberlanjutan. Metode penelitian ini adalah deksriptif kuantitatif dengan melibatkan metode wawancara dengan guru IPA, kuesioner dengan 30 sampel siswa, dan tinjauan literatur. Hasilnya menunjukkan bahwa penggunaan E-book interaktif berbasis ESD masih terbatas, meskipun disadari kepentingannya. Mayoritas guru menggunakan buku cetak sebagai bahan ajar utama, namun kebutuhan akan E-book interaktif diakui penting oleh siswa. Namun, implementasinya masih sedikit, walaupun mayoritas setuju E-book interaktif berbasis ESD menarik dan penting dalam pembelajaran IPA. Permintaan akan alat pembelajaran yang menarik meningkat karena pandemi COVID-19, mendorong usulan penggunaan E-book. E-book menawarkan fitur-fitur menarik seperti video interaktif, materi bacaan relevan, dan kuis interaktif, menciptakan lingkungan belajar yang dinamis. Integrasi ESD dalam E-book memberikan kesempatan untuk merevolusi pendidikan dengan memberdayakan siswa dengan pengetahuan dan pemahaman tentang tantangan lingkungan global. Kesadaran akan keberlanjutan membantu siswa memahami pentingnya perlindungan lingkungan, keseimbangan ekosistem, dan dampak tindakan individu terhadap lingkungan. Hal ini sangat penting karena siswa adalah generasi mendatang yang akan mewarisi dunia ini, sehingga pemahaman mereka tentang prinsip-prinsip keberlanjutan sangatlah vital untuk pembangunan yang berkelanjutan. Studi ini merekomendasikan pengujian menyeluruh dan analisis perbandingan antara E-book berbasis ESD dengan sumber daya tradisional lainnya untuk mengevaluasi efektivitasnya dalam meningkatkan kesadaran akan keberlanjutan di kalangan siswa SMP. Tujuan utamanya adalah untuk meningkatkan pembelajaran mandiri dan kesadaran siswa akan keberlanjutan.