bluuebunny/crossref_metadata_2025 huggingface dataset:
Short-term and long-term treatment outcomes in patients with lower and middle rectal cancer with complete clinical and pathomorphological response after comprehensive treatment
Authors: Dudaev Z. A. , Khudoerov Dzh.  Kh. , Mamedli Z. Z. , Aliev V. A. , Gordeev S. S. , Magarramova Z. N.
Published: April 2022

Objective: to compare short-term and long-term treatment outcomes between patients with lower and middle rectal cancer with complete clinical and pathomorphological response after comprehensive treatment.Materials and methods. we performed retrospective analysis of treatment outcomes in patients with lower and middle rectal cancer. The experimental group included 27 patients with complete clinical response, whereas the control group comprised 31 patients with complete pathomorphological response (ypT0n0m0) who had undergone total mesorectal excision following neoadjuvant therapy. The main evaluated parameters included postoperative complications, proportion of R0 resections, proportion of sphincter-preserving surgeries, 2-year overall survival, and progression-free survival.Results. At a median follow-up time of 41 months (range: 25–114 months), 2 patients from the experimental group had progressive disease registered 18 and 19 months after treatment initiation; both patients underwent abdominoperineal extirpation of the rectum. The remaining 25 patients had sphincter sparing surgeries. At a median follow-up time of 48 months (range: 24–101 months), one patient was found to have liver metastasis 5 months following treatment initiation. He underwent simultaneous surgery that included low anterior resection of the rectum and liver resection and had no postoperative complications. In the group of surgical treatment, all patients underwent radical surgeries (R0), including those with permanent stoma formation (n = 11; 35.5 %) or preventive stoma formation (n = 20; 64.5 %) with subsequent bowel repair. The 2-year overall survival rate was 100 % in both groups. The 2-year progression-free survival rate was 92.6 % in the experimental group and 96.8 % in the control group (p = 0.473).Conclusion. The watch and wait strategy with active dynamic follow-up is a safe alternative to surgery in patients with complete clinical response after neoadjuvant therapy, since it ensures the results equivalent to those in patients with complete pathomorphological response.
Paraaortic and pelvic lymph node dissection in the combined treatment of recurrent ovarian cancer with isolated lymph node lesion: a literature review
Authors: Egenov O. A. , Tjulandina A. S. , Suleymanov E. A. , Stilidi I. S.
Published: April 2022

The aim of the work is to analyze all available literature data on the role of secondary cytoreduction, its effectiveness and safety in the recurrence of ovarian cancer (ОС) with isolated lymph node (LN) lesion.The importance and place of secondary cytoreduction in the combined treatment of recurrent ОС is one of the most controversial topics. The lesion of the LN in recurrent Ос varies from 12 % to 37 %, but an isolated recurrence in the LN is a very rare occurrence, about 5 %. The most common localization in recurrent ОС with isolated LN lesion is the paraaortic LN.

The results of this literature review suggest that isolated Ln lesion should be clearly distinguished from recurrence at other sites (such as peritoneal and parenchymal), since patients with isolated recurrence in the LN have a relatively indolent course of the disease. The frequency of complete cytoreduction according to the available data of retrospective studies reaches 100 %. Paraaortic and pelvic lymph node dissection without a macroscopically detectable residual tumor in combination with postoperative systemic chemotherapy leads to improved survival rates compared only with systemic drug treatment of patients with isolated LN lesion in recurrent ОС. median survival from the moment of relapse detection and overall survival varies from about 2.5 to 4 years and >5 years, respectively. Systemic paraaortic and pelvic lymph node dissection is preferable compared to selective lymphadenectomy, as it is accompanied by an increase in progression-free survival, although it doesn’t significantly prolong overall survival.
Uncertainty of the image of consumer behavioral disorders in the representations of students
Authors: Aksyutina Zul’fiya A. , Il’in Aleksey N.
Published: April 2022

Our time is called the era of consumption. Consumerism as a phenomenon is rapidly developing in the space of Russia and is one of the psychological characteristics of modern youth, including students. That is why this work was devoted to the study of the uncertainties of the image of violations of consumer behavior in students perceptions. To achieve the goal of the study, an overview of studies on the characteristics of consumer behavior in modern Russian humanitarian publications over the past five years is presented. The most relevant aspects of cognition of the psychology of consumer behavior are revealed: phenomenology, definition of the concept, deviations in consumer behavior, etc. Consumerism was found to lead to a disease affluence. The aim of the study was to identify students perceptions of consumer behavior disorders. It was assumed that the students ideas about violations of consumer behavior are characterized by blurry and uncertainty due to the fact that this aspect is not the subject of their professional training. 72 students aged 20 to 24 years of the Pedagogical University were engaged in a diagnostic conversation. The data obtained during the survey were interpreted using the Wu Xing pentagram method. The analysis of students ideas about psychological disorders of consumer behavior is given. The anti-motives of consumption are revealed. They were modeled into a reflected pyramid of needs on the basis of A. Maslows theory of needs. In the conclusion, it is indicated that the hypothesis put forward has not been confirmed.
The network form as a tool for improving the quality of education in the context of digitalization
Authors: Shlyakhtina Natal’ya V.
Published: April 2022

The modern educational environment in the conditions of the digital world considers the network form of implementation of educational programs as a tool for improving the quality of education. The network form of implementation of educational programs as an innovative reality in schools participating in the regional project Modern School is based both on the use of resources of several educational organizations and other institutions to solve the deficits of the basic organization itself. The network form provides an opportunity to maximize the use of material, technical and infrastructural resources updated through the supply of digital equipment and qualitatively new training of teaching staff. The paper substantiates the relevance of the network form implementation of the implementation of educational programs. The paper presents the results of quarterly monitoring of educational organizations that have established Education Centers and implement digital programs, including the network form and distance learning technologies. The subject of the study is educational activities of schools for the implementation of digital profile programs, including the online form. As a result of the study, the models of implementing educational programs in a network form using the equipment of the Education Centers are identified, and management solutions are proposed to improve the quality of implementing programs in a network form. The issues considered in the paper are very relevant at the present stage of the search for new grounds to improve the quality of education and new forms of quality management and the process of implementing programs in a network form. They are the subject of active discussion in the pedagogical community and can serve as material for use in pedagogical and managerial practice.
Assessment of the teaching methods impact on the level of financial literacy
Authors: Bitkina Irina K.
Published: April 2022

This paper contains the results of the study to assess the impact of teaching methods on the level of students functional literacy. The relevance of the research is determined by the importance of developing a scientific basis for the preparation of modern higher education training programs aimed at developing the rigid and flexible skills of future specialists. Based on the analysis of domestic and foreign scientific sources and accumulated pedagogical experience, the features and components of the concept of functional literacy are identified, on the basis of which a conclusion is made about the complex nature of this concept. This character allows us to apply various forms to assess the achievement of the functional literacy concept components. This approach was realized during our experiment, the results of which are reflected in this paper. Currently, in pedagogical science, the influence of various forms of education on the functional literacy level of students has been studied to an incomplete degree. The aim of the study was to assess the impact of teaching methods on the functional literacy level of students. The basic research method is a scientific experiment. Classical and innovative (interactive) forms and technologies of practical classes were used as the experimental material. Two groups of students of Economics specialty were chosen as the object of research during their final year. To achieve the purpose of the study, a sequential multi-stage study was conducted. Based on the results of the study, recommendations were made about the possibility of using various forms of education in order to improve the functional literacy of students. The possibilities of using interactive forms of education to improve the functional literacy of students of socio-humanitarian areas of training are revealed.
Approaches to the formation of the communicative personality of the future teacher in the classroom of the course «Academic eloquence»
Authors: Filippova Olga V.
Published: April 2022

The paper attempts to develop a set of approaches to the formation of the communicative personality of the future teacher in the classroom of the course Academic eloquence in the magistracy, to systematize and summarize the experience of using rhetorization technology in order to teach strategies and tactics of professional speech in the academic field. To teach undergraduate students academic eloquence, it is necessary to take into account the structure and characteristics of the teachers communicative personality, the leading strategies and tactics of academic discourse, genre features of academic speech and productive technologies used in the field of professional education of future teachers. In this regard, the author tried to formulate approaches to the formation of the communicative personality of the future teacher, reflecting the traditions of academic eloquence and modern trends in the field of professional rhetorical education, to identify and substantiate the didactic potential of the textbook of Doctor of Pedagogical Sciences T.A. Ladyzhenskaya. The author reveals the concept of the communicative personality of a teacher and describes a set of basic pedagogical approaches to organizing the effective work of students in the classroom of the course Academic eloquence. The conditions are discussed that determine the effectiveness of organizing classes, enriching students with communicative experience in the field of professional communication and rhetorical practice, forming value attitudes and the ability to select the optimal language means when creating academic speech as a means of solving professional problems. Within the framework of considering the value-axiological, genre-oriented, personal-professional and problem-praxeological approaches to the formation of the communicative personality of the future teacher, the methods of rhetorization technology at the level of teaching the subject are described: rhetorical analysis, rhetorical task and rhetorical game. The introduction of the considered approaches and techniques into the educational process made it possible to bring training closer to the needs of modern academic practice and showed its effectiveness in the formation of general cultural and general professional competencies necessary for a future teacher.
Gamification elements and online resources for teaching english lexics to future engineers at technical university
Authors: Shvaikina Nina S. , Oparina Kseniya S. , Kolosova Elena I.
Published: April 2022

The paper is devoted to gamification as one of the leading trends in all branches of human activity, including education. A modern young professional should have a formed foreign language communicative competence to perform professional duties in the most effective way. In addition, knowledge of a foreign language contributes to the harmonious development of the individual and provides a basis for further achievements. The aim of this paper is to define the concept of gamification in educational discourse, to identify its key characteristics, as well as the differences from the concept of game. In the practical part of the paper, the authors made an attempt to determine the effectiveness of gamification and online sources for teaching English vocabulary to engineering students. In addition, a list of specific online resources that can be used in the classroom is given. This research was carried out using theoretical and practical methods. The theoretical methods are the analysis of the Federal State Educational Standard of Higher Education and other regulatory documents, regulating the learning process at the university, as well as reviewing and systematizing the theoretical and practical works of researchers in this area. The results of the practical part of the research were obtained through pedagogical observation, questionnaires, testing and experiment, as well as through a frontal conversation and an individual interview. The research results can be applied in teaching English to bachelor students of all technical areas of training, as part of a refreshment course for undergraduates of non-linguistic specialties. In addition, it should be noted that the use of gamification is possible both in classroom lessons and in the independent work of students.
The methods of forming soft skills of university students: theoretical and practical aspects
Authors: Uskova Bella A. , Fominykh Maria V.
Published: April 2022

This paper describes the theoretical and practical aspects of the methodology for the formation of students soft skills. Innovation processes are implemented today in almost all spheres of human activity. In particular, this applies to the field of education. As for professional education, the university should maintain interest in modern technologies, socio-economic changes in society, and the development of new trends and directions. Such processes include the formation of supra-professional skills, in other words, soft skills. They are not related to a particular profession, but are important for a career and advancement in it. The process of forming such skills can be implemented in English classes. In this regard, to create conditions conducive to the formation of soft skills, as well as to make the learning process more informative and memorable, the authors of the paper developed a set of tasks for the formation of soft skills competencies. Since the development of these skills is important for preparing for a future profession, the target audience is junior students. The purpose of this paper is a theoretical justification of the methodology for the formation of soft skills competencies. The practical significance of the research lies in the fact that the results can be used in the course of foreign languages teaching methodology.
The influence of facial stigma and physical attractiveness on the impressions formation about person
Authors: Zorina Svetlana V.
Published: April 2022

When a person is perceived, the impression of a person is formed as a result of processing a multitude of signs (features of the face). A significant part of these signals has been studied in sufficient detail, but information on how they interact with each other is not enough. The study is aimed at studying the mechanism of impression formation as a result of the perception of two signals having the opposite effect: physical attractiveness and stigma of disembryogenesis (orbital hypertelorism, manifested in increasing the distance between the inner corners of the eyes). Physical attractiveness enhances a positive impression, while facial stigma contributes to a negative opinion of the person. We expected that the impression will depend on the interaction of the signals with each other. In the experiment, participants (200 people) made judgments about three groups of variables: personality traits, the degree of desired interpersonal proximity, the reliability of a person (danger and potential criminality). To identify the interaction of signals, the division of the photoimage into two parts was used. This technique makes it difficult for the holistic perception of the face, weakening the influence of facial signals. Meaning, changes in the eye area have less impact on the overall impression because the upper and lower halves of the face are perceived separately. The hypothesis was confirmed for social judgments about the reliability of a person. For physically attractive individuals, the violation of continuty contributed to an increase in the attributed likelihood of committing murder and fraud, for physically unattractive a decrease in the perceived danger and the possibility degree of committing fraudulent activities. While perceiving the face of another person, the subject of perception forms a holistic impression in which the initial pieces of information are integrated depending on their weight, for example, a strong signal eliminates a weak one. Obtained results shows that physical attractiveness weakens the influence of dysembryogenesis stigma on the evaluation of potential criminality, forming a positive bias.
Properties of sound wave propagation in the solar faculae
Authors:   Main astronomical observatory of the National Academy of Sciences of Ukraine, Kostik R. , Shchukina N. ,   Main astronomical observatory of the National Academy of Sciences of Ukraine
Published: April 2022

The results of observations of the faculae region near the center of the solar disk, which were obtained on the German Vacuum Tower Telescope VTT (Tenerife, Spain) are discussed. It is shown that the contrast (brightness) of the facula increases non-monotonouslywith an increase of the magnetic field strength, and, starting from the strength 140 mTl, it decreases.This is contrary to the currently accepted explanation of the increased brightness of facular regions as a result of the Wilson effect. The facular brightness in the upper chromosphere strongly depends on the propagation direction of sound waves. The regions of the facula, where the upward propagating waves are observed, look brighter than the regions in which the waves propagate in the opposite direction from the photosphere to the chromosphere. Dependence of the facular brightness on the wave propagation direction is caused by the fact that upward sound waves, for some reason, prefer to propagate in those regions of the solar facula where the magnetic field strength is above the average value. On the contrary, downward waves are observed in areas where the magnetic field is below average.
Magnetographic and spectral investigations of solar magnetic fields in Astronomical observatory of Taras Shevchenko National University of Kyiv in 1975–1980
Authors:   Taras Shevchenko National University of Kyiv, Lozitsky V.
Published: April 2022

In 1975, at the Astronomical Observatory of the Taras Shevchenko National University of Kyiv, a magnetograph of the full vector of the SIBIZMIR design was installed and began to operate, and this initiated the creation of a new promising scientific direction at the observatory – the measurement of solar magnetic fields by both magnetographic and spectral-polarization methods. This article provides a brief chronology of the events in the first 5 years of the existence of the new direction, as well as the most important scientific results during this period. Вased on the experience of observations obtained at the Kyiv observatory, it was concluded that this magnetograph in the Kyiv’s astroclimate can not provide such scientifically valuable data as those magnetographs used in other observatories far outside large cities. In particular, although in Kyiv the sensitivity of measurements in the longitudinal magnetic field channel was quite high – about 5 G in the longitudinal field channel and 75 G in the transverse field channel, “noise” in the radial velocity channel reached 0.3 km/sec, which is about an order of magnitude higher than in the Crimea magnetograph. Another reason for the limited use of the magnetograph in the Kyiv observatory was that in the late 1970s significant problems with the calibration of magnetographic measurements became apparent, as a result of which such measurements in the areas of sunspots could have errors of 200–300%. However, in parallel with magnetographic research, spectral-polarization studies were also developed, and they allowed to obtain the most important results. In particular, the new data were obtained on the existence of magnetic fields with a strength of » 10 kG in active regions on the Sun, on the discreteness of the strengths in subtelescopic structures with very strong fields, as well as data on the significant suppression of turbulent motions in them. The corresponding conclusions were confirmed and detailed by new research in the following years.
Cosmogenic beryllium-7 in the near-ground air of Ukraine
Authors:   Taras Shevchenko National University of Kyiv, Lozitska N.
Published: April 2022

The 7Be isotope is of exclusively natural origin. This radionuclide attaches to the submicron aerosols, so 7Be can be used as a marker in the search for patterns of air mass movements. Studies of natural cyclic variations and sporadic increases in volume activity of 7Be are needed to identify of various sources of total radioactivity of near-ground air. Using the measurement data of radionuclide stations located in four regions of Ukraine within 48–51°N and 25–30°E, seasonal and annual variations in the volume activity of beryllium-7 in surface air were studied. We used both published data for 2005-2019 and new measurement results of the Main Center for Special Control in Ukraine (https://gcsk.gov.ua/), carried out in 2017–2020. This material confirms the seasonal changes in the volume activity of beryllium-7, found earlier for latitudes 45–55°N, with a maximum in April-August and a minimum in November- February. Comparison of measurements in Ukraine with the data of radionuclide monitoring of neighboring countries made it possible to choose the most reliable row of average annual values from 2005 to 2011, which was obtained from measurements in the Chernobyl zone. This data correlates with the flux of the neutron component of cosmic rays and with the height of the equipotential surface of 200 mbar.
Biological determinants of maternal behavior
Authors: Avdeeva N.N.
Published: April 2022

The article deals with the problem of the biological foundations of maternal behavior in foreign psychology. Two sources that activate parental behavior are considered: hormonal processes occurring in the mother's body and stimulation from the child. Both classical and contemporary studies of maternal behavior in response to the infant's innate activity repertoire are presented; risks for establishing interaction in a dyad; basic neurobiological mechanisms of “bonding” in the postpartum period. Modern trends in the study of the role of early contact not only of the mother, but also of the father with the fetus before birth are shown, in order to establish the interaction and attachment of parents to the child after birth. The programs of early intervention aimed at supporting the biological determinants of parental behavior are considered: the formation of a positive attitude towards the child, the prevention of risks of violation of the psychological health of parents in connection with the birth of a child.
The Use of Information and Communication Technologies and Social Capital: the Nature of the Correlation
Authors: Mironova A.A.
Published: April 2022

Objective. Critical analysis of existing research about the correlation between involvement in the use of information and communication technologies (ICT) and social capital; formulation of the author’s point of view on limitations of existing research about the correlation between ICT and social capital.Background. The development of ICT creates a new social reality and appearance of new social practices. Spreading of ICT and, in particular, the Internet, defines global changes in the technological context of communications. Social capital as one of the most important products of social interaction can be determined by the development of ICT, and at the same time social capital can influence the development of ICT. What is the nature of this relationship, how social capital will change in the context of ICT’s development, and how social capital affects the inclusion people in ICT’s using — these are the main questions that this study focuses on.Conclusions. Existing studies prove the correlation between social capital and developing of ICT. In doing so, both social capital influences the nature and intensity of ICT’s using, and ICT influence the creation and maintenance of social capital. This link can be analyzed not only on the individual, but also on the collective level. At the same time, the existing studies on the relationship between ICT and social capital have some limitations. Among the main limitations: imbalance in the levels of analysis (individual and collective levels) in studies on the relationship between ICT and social capital; lack of theoretical explanations of link mechanism between ICT and social capital; lack of studies that summarize the current knowledge about the relationship between ICT and social capital.
Online Social Media Communication: the Effect of Having Privacy Violation Experience on Online Behavior
Authors: Sinyavskaya Y.E.
Published: April 2022

Objective. To analyze the effect of privacy violation experience on privacy-protective behaviorsBackground. In the era of rapid development of Internet technologies, privacy issues call for scientific reflection. Understanding the factors that regulate online user behavior might assist in elaborating the adequate privacy policy.Study design. Regression analysis provides a parametric evaluation of the effect of privacy experience on usage of privacy settings. Various matching technics were applied for preliminary balancing of the control (N=215) and treatment groups (N=160) by a set of key covariates.Participants. Users of the largest Russian online social network VKontakte from the Russian city Vologda. The sample size is 375 respondents (55% female) from 16 to 83 age (Mean=32,5; Med.=31; SD=12,9).Measurements. Both survey data on privacy experience and observed behavioral data on privacy settings from users’ online accounts were used. Additionally, the scale of P. Totterdell & D. Holman on propensity to make social connection and M. Rosenberg’s self-esteem scale were adopted in the studyResults. The experience of privacy violation does not lead to the cautious behavior online: the users tend to regulate only the access to the public posts on profile due to past bad experience. The privacy settings literacy turns significantly affect the usage of privacy settings.Conclusions. The findings support the “privacy paradox” hypothesis. As having specific online privacy management skills encourages more cautious behavior online, digital literacy interventions can improve the safety of social networking sites.
Improvement of environmental performance of tractor diesel by the use of compressed natural gas and exhaust gas recirculation, methanol and ethanol fuel emulsions
Authors: Likhanov V. A , Lopatin O. P
Published: April 2022

Possibility of improving environmental performance of diesel engine by the use of compressed natural gas and exhaust gas recirculation, methanol and ethanol fuel emulsions is determined. It allows to reduce nitrogen oxides level in exhaust gases, to save diesel fuel and to improve effective performance.
Innovative microwave installation SIGMA-1
Authors: Pakhomov A. I , Maksimenko V. A
Published: April 2022

A new microwave installation for flow disinfection of grain and seed of agricultural crops is presented. Due to original technical solutions, the installation provides intensive and uniform sterilization and drying of grain material with energy saving.
Results of research of moving stability of wheeled tractor under high traction load
Authors: Schetinin Yu. S , Yesenovskiy-Lashkov M. Yu , Klimova Ye. V
Published: April 2022

The article presents the results of researches conducted with the use of computer that allow to estimate the influence of tractor unit parameters on possibility of self-excited oscillations of wheeled tractor frame in the case of its moving under load that causes significant slipping of driving wheels.
Reliability of tractor hydraulic systems in the context of purity of power fluid
Authors: Aliboyev B. A
Published: April 2022

The article is dedicated to review and analysis of control and estimation methods of power fluid purity in order to provide reliability of tractor hydraulic systems. It highlights the results of experimental studies concerning contamination of hydraulic system fluids. Comparative analysis of foreign standards of hydraulic system fluids control is performed.
Evaluation of statistical characteristics of flow of grain pile entering in dryer
Authors: Andrianov N. M , Nikolayenok A. V , Manasyan S. K , Manasyan G. S , Mei Shunqi , Li Zhen
Published: April 2022

Dynamics of changes in characteristics of the flow of grain pile entering in dryer have been analyzed on basis of experimental data. Stochastic mathematical model determining the initial operating conditions of dryers is constructed. The model allows to simulate the operating conditions of dryers regardless of their throughput capacity.
Tractor gear shift modeling
Authors: Gorodetskiy K. I , Melnikov A. Yu , Muratova S. K , Alendeyev Ye. M
Published: April 2022

The article deals with issues of gear shifting modeling and a method of piecewise stepless regulation of tractors speed, based on rational choice of sufficiently small range of engine corrector characteristic, in which the power doesn’t decrease below nominal one and fuel efficiency is saved.
New method of headed cabbage harvesting
Authors: Alatyrev S. S , Kruchinkina I. S , Yurkin A. P , Alatyrev A. S
Published: April 2022

The article proposes a new method of headed cabbage harvesting into rigid containers, allowing to avoid the damage of cabbage heads during harvesting and dispatching for storage.
Evaluation of remaining operating life of oil depots equipment in agroindustrial complex by results of technical condition diagnostics
Authors: Yerofeyev V. V , Ignatyev A. G , Yerofeyev S. V , Sharafiyev R. G
Published: April 2022

A new method for evaluation of remaining life of oil depots equipment in agroindustrial complex is proposed. This method is based on the analysis of expected damage in the most loaded and weakened area of metal structure.
Results of field researches of a seed drill equipped with sowing devices with asymmetrical profile of seed cells
Authors: Machnev A. V , Machnev V. A , Khorev P. N , Khorev A. N
Published: April 2022

A seed drill equipped with sowing devices with asymmetrical profile of seed cells and with a ledge in the form of hypocycloid has been developed and made. Optimum values of design parameters of seed roller in actual practice are determined. Original methods for determination of seeds distribution in a row and crushing of seeds in laboratory and field conditions are given.
Exploitation effects of using minerals as active agents of lubricants
Authors: Dolgopolov K. N , Lyubimov D. N , Pustovoy I. F , Shabanov A. Yu , Kolesnikov I. V
Published: April 2022

On the results of bench tests of serpentine additives to lubricants for internal combustion engines of various types the main exploitation effects of that kind of substances as a new class of raw materials for chemmotology are generalized. It is concluded that minerals belong to the classification group of friction modifiers. Calculation models and ways to increase the affinity of components of mineral additives to metals providing longevity of formed protective coatings are considered.
Static stability of articulated front loader
Authors: Pozin B. M , Troyanovskaya I. P , Taborskikh Ye. V
Published: April 2022

Influence of tangential reaction from ground, appearing in process of turning, on static stability of front loader is evaluated. Numerical experiment is carried out by the example of ПК-15 loader.
Determination of shavings area during the operation of tillers
Authors: Makhmutov M. M , Bykovskiy V. S
Published: April 2022

Influence of parameters and operation modes of tiller on shavings area is determined.
Electric traction and electric power take-off of agricultural tractor
Authors: Amelchenko P. A , Zhukovskiy I. N , Stasilevich A. G , Klyuchnikov A. V , Zhukovskiy A. I
Published: April 2022

Application and efficiency of electric traction and electric power take-off of agricultural tractors are considered.
Grain thrower based on a rotary working organ
Authors: Butenko A. F
Published: April 2022

Belt-type grain throwers are briefly analyzed, their strengths and weaknesses are pointed out. Results of preliminary experimental research of operation of rotary grain thrower equipped with accelerating impeller are given.
Trends of development of agricultural tractors’ designs
Authors: Parfenov A. P
Published: April 2022

On materials of the Agrosalon 2014 exhibition, which has assembled leading domestic and foreign machine building companies, trends of development of agricultural tractors’ designs are considered.
Fuel efficiency increase of ЯМЗ-238 diesel engine under light load modes by adjusting its engine capacity
Authors: Patrakhaltsev N. N , Skripnik D. S , Kamyshnikov R. O
Published: April 2022

Possibility of decrease in fuel consumption when ЯМЗ-238 diesel engine operates in light load modes, by means of changing of its engine capacity by partial cylinder cutout is shown.
Cultivator for preplanting cultivation equipped with rope working organ
Authors: Telichkina N. A
Published: April 2022

Functionality, design parameters and operating procedure of cultivator equipped with a rope working organ for preplanting cultivation are considered. Diagram and formula for determination of optimal corner angle of rope working organ are given.
Modeling of thermal stress condition of combustion head of tractor diesel engine
Authors: Gots A. N , Prygunov M. P
Published: April 2022

The calculation method for thermal stress condition of combustion head of tractor diesel engine is suggested. Methods of determination of heat-transfer coefficient taking into account construction of combustion head are suggested.
Dependence of wheeled mover slipping on traction force
Authors: Zhulay V. A , Yenin V. I , Kozhakin Ye. V
Published: April 2022

Approximation function is proposed, it allows to describe different types of interrelationships between slipping and relative traction force of wheeled mover of tractive technological machines.
Influence of tractor fleet on technical equipment indices and resource availability of mechanized agricultural production
Authors: Shevtsov V. G , Lavrov A. V
Published: April 2022

Results of mathematical treatment of statistic data on work of agricultural organizations in Russia are given. Linear relationship between number of statistic tractors and agricultural machines is shown. Equivalent ratio between tractor fleet reduction and reduction of arable land area and number of jobs is revealed.
Substantiation of parameters of separator for small leaf part of grass plant
Authors: Abilzhanov D. T , Abilzhanuly T. , Uteshev V. L
Published: April 2022

Optimal separator parameters have been obtained, as a result of experimental investigation of separation of leaf part from pre-shredded alfalfa.
Classification of tribo-compositions and demands to them
Authors: Dunayev A. V
Published: April 2022

Materials concerning the most frequently used tribo-compositions are discussed.
Influence of hydraulic fluid viscosity on the efficiency coefficient of hydrodynamic transmission
Authors: Dyachkov Ye. A , Fedyanov Ye. A
Published: April 2022

Results of laboratory investigation of influence of hydraulic fluid viscosity on efficiency coefficient of tractor hydrodynamic transmission are considered. It is shown, that efficiency coefficient is increased when hydraulic fluid viscosity decreases. Formula allowing to estimate quantitatively viscosity influence on efficiency coefficient of hydraulic converter is given.
Improvement of normative and technical documentation for the maintenance support of machine and tractor fleet
Authors: Dunayev A. V , Gafurov I. D , Vakhitov N. U
Published: April 2022

Necessity of revision of the State Standard № 20793-2009 concerning maintenance support of machine and tractor fleet is substantiated, because of its wrong demands, excessive regulation of periodicity and procedure of maintenance support, absence of quality control of fuel-containing materials, disregard of triboengineering achievements and more.
Mechanical seeder for encapsulated seeds
Authors: Tyrnov Yu. A , Balashov A. V , Belogorskiy V. P , Strygin S. P , Sukhov A. A
Published: April 2022

Design of the seed distributor of a seeder for encapsulated seeds is described. Parameters of special parts are substantiated graphically.
Robot manipulators in agriculture
Authors: Belov M. I , Pylayev B. V , Sorokin S. V
Published: April 2022

Agricultural robot manipulators intended for harvesting of strawberry, fruits, vegetables, bush trimming, plant and seedlings planting, weeding, disk ripper knife grinding, pallet laying are reviewed. Their operational principle are outlined, mobility and manoeuvrability assessment of manipulators is carried out based on block schemes supposed by authors.
Parameterization of extra-low pressure tires for chemicalization mobile vehicles
Authors: Godzhayev Z. A , Izmaylov A. Yu , Pryadkin V. I
Published: April 2022

Results of theoretical researches concerning parameter optimization of extra-low pressure tires for mobile power units are given. Optimal value of diameter and width of tire for chemicalization vehicles operating on grounds of low bearing value, were determined.
Operation analysis of soil spiker needles during their rolling on soil
Authors: Khaylis G. A , Kovalev M. M , Tolstushko N. N , Shevchuk V. V
Published: April 2022

Soil needling by soil spiker has been analyzed. Forces acting on needles while rolling on soil, as well needles moving features are considered. The dependence for determination of moving force of a soil spiker is obtained.
Wear of all-metal and compound ploughshares
Authors: Mikhalchenkov A. M , Kozarez I. V , Mikhalchenkova M. A
Published: April 2022

It is found that service life of Russian-manufactured ploughshares is determined by ray-shaped wear and abrasion of a deepening part of plough-point, but service life of imported components is determined by wear of cutting-blade parts of the frame. Some kinds of one-sided chisels wear can be repaired and do not cause their rejection.
Low pressure tire as an optimal mover for vehicles on weak soils
Authors: Kotlyarenko V. I , Goncharenko S. V , Godzhayev Z. A , Shapiro V. Ya
Published: April 2022

Results of comparative evaluation of movers performance indicators of vehicles exploited on weak soils are given, as well as production of low pressure tires as of from 1991 to 2013 are reviewed.
Improvement of suspension system of mobile power units
Authors: Kushnir V. G , Benyukh O. A , Shilo I. N , Romanyuk N. N , Ageychik V. A
Published: April 2022

Original designs of pneumatic-tyre movers and vehicle suspension are proposed. Their use will permit to increase reliability, operation durability, ride comfort, and cross-country capability of machine and tractor unit; to improve operator work conditions; to decrease vertical vibration and dynamic loads on supporting surface as well as soil compaction.
Automation of performance calculation of horizontal load stabilizers for machine and tractor units
Authors: Kuznetsov N. G , Gapich D. S
Published: April 2022

Mathematical model determining parameters of tractor longitudinal and angular oscillations based on known design parameters of tractor and driving tires is considered. It permits to determine parameters of horizontal load stabilizers of machine and tractor unit without field tests.
Performance improvement of diesel fuel
Authors: Ostrikov V. V , Kornev A. Yu , Shikhalev I. N
Published: April 2022

Problems of diesel fuel lubricity and low-temperature properties improvement are considered. Fuel decontamination increasing antiwear properties has been under study, findings are presented. Efficiency assessment of some depressant and dispersant additives improving low-temperature properties of diesel fuel is given.
The 50th anniversary of ДТ-75 tractor made in Volgograd
Authors: Kosenko V. V
Published: April 2022

The article is dedicated to 50th anniversary of mass production start-up of the famous ДТ-75 tractor in the Volgograd tractor plant. Principal stages of its improvement and modernization are given.
Commemorating the 110th anniversary of academician V.N. Boltinskiy
Authors: Kutkov G. M
Published: April 2022

The conceptual issues of V.N. Boltinskiy scientific heritage are stated, his contribution to progress of tractor industry and agricultural mechanization as well as his advances in training of engineering skills for agriculture are highlighted.
Instrumentality of Theory of Mechanisms and Machines as the scientific base of agricultural machinery performance increase
Authors: Naumkin N. I , Kupryashkin V. F
Published: April 2022

Significance of basic technical training for students learning Agricultural engineering is substantiated as exemplified by Theory of Mechanisms and Machines learning.
Parameters of a sowing device for germinated pumpkin seeds
Authors: Abezin V. G , Motorin V. A
Published: April 2022

Results of experimental testing of a conveyer sowing device are stated.
Mathematical model of operation fluid leakages in static sealing joins
Authors: Vodyakov V. N , Berezin M. A , Kuznetsov V. V
Published: April 2022

Backgrounds, substantiation and results of the construction of mathematical model of operation fluid leakages through a static sealing joint with round ring are presented.
Vibration roller as an automatic system for soil density equalization
Authors: Shapar M. S , Shishlov A. N
Published: April 2022

A soil cultivating roller equipped with a number of additional functional elements is developed, allowing to transform a passive roller into the monitoring system of soil density automatic regulation.
Dynamic loading of load-bearing parts of crawled tractor transmission during the operation in «acceleration – stopping» mode
Authors: Tesker Ye. I , Shekhovtsov V. V , Taranenko V. Yu , Podshivalin K. P
Published: April 2022

Procedure and equipment for the testing of crawled machines’ load-bearing gears in «acceleration – stopping» mode are developed. Characteristics of bench dynamic model are maximal close to the characteristics of tractor dynamic system.
Stability of a wheeled vehicle on turn and on impact with immobile block
Authors: Gorshkov Yu. G , Starunova I. N , Kalugin A. A
Published: April 2022

Wheeled vehicle transverse stability of turns and at immobile block impact was analyzed. Main factors influencing on critical roll-over speed were examined. Ways of transverse stability of wheeled vehicle improving are outlined.
Water and fuel combustion in internal combustion engine
Authors: Dunayev A. V , Zheleznitskiy A. I
Published: April 2022

Some well-known information about internal combustion engines impact on fuel and air as well as operation results of a new developed steam generator mounted on МТЗ-82 tractor are given.
Bench tests of a diesel completed with fuel energy-saturating device
Authors: Simdyankin A. A , Kaykatsishvili G. Z
Published: April 2022

The bench tests of the Д-243 diesel equipped with fuel energy-saturating device are described. Its loading and regulatory parameters have been analyzed.
Comparative analysis of identification methods of working liquids and oils purity grade
Authors: Baryshev V. I , Goglacheva K. N , Kovaliov I. N
Published: April 2022

Advantage of liquids purity identification by minor fractions of dirt particles, by their ratio and classifications taking into account the effect of basic cleaning means (but not stages of technical equipment life) on dirt is substantiated.
Estimating the effect of rotary table feeder working organs’ parameters on its performance
Authors: Yermolin A. Yu
Published: April 2022

A table feeder for friable components of mixed fodder is examined. Degree of its working organs parameters’ effect on the performance is estimated by means of screening experiment.
Irregularity of fertilizers application in conditions of coordinate farming system
Authors: Sedashkin A. N , Daskin I. N , Kostrigin A. A
Published: April 2022

Influence of factors on irregularity of fertilizers application with machines equipped with centrifugal working organs was analyzed. Trajectory and distance of fertilizer’s particles flight when they have been applied on the slope were determined.
Complexity class determination of technical support in animal husbandry
Authors: Kovaliov L. I , Kovaliov I. L
Published: April 2022

The technique of complexity class determination of technical support and machinery and equipment maintenance in animal husbandry is stated.
Technology of ruptures neutralization on crankshaft journals
Authors: Mashrabov N. , Ignatyev G. S
Published: April 2022

The choice method of technology of ruptures neutralization on ЯМЗ-240 engine crankshaft journals by means of ruptures cutting and welding is proposed.
Improving the dynamic characteristics of tractor-trailer trains moving
Authors: Perchatkin Yu. V
Published: April 2022

Problems of trailing tractor transport development are considered. Measures ensuring the rise of ride comfort and passability are suggested.
Improving the ecological characteristics of diesel by means of ethanol and fuel emulsion use
Authors: Likhanov V. A , Lopatin O. P
Published: April 2022

Potential of diesel ecological characteristics improvement by means of ethanol and fuel emulsion using is established. Particularly reducing nitric oxide content in exhaust gases, diesel fuel economy, increase of effective characteristics can be reached.
Forecasting the dynamics of controlled performance characteristics of machine and tractor aggregate
Authors: Kalachin S. V
Published: April 2022

Results of development of a new trend in operational control methods based on prognostic information about the dynamics of controlled operational parameters of machine and tractor aggregate are presented.
Calculation method of resistance and moment of resistance to soil cutting
Authors: Akimov A. P , Konstantinov Yu. V , Fedorov D. I
Published: April 2022

Calculation method of resistance and moment of resistance to soil cutting in dependence on rotation angle of working organ is developed. This method can be transferred mainly to other rotation working organs.
Formation of towed load depending on the moment of resistance
Authors: Zhutov A. G , Karsakov A. A , Avramov V. I
Published: April 2022

Mathematical model of movement of a machine-tractor unit with elastic components in the drive of leading wheels is obtained. Elastic drive decreases the wheels driving moment dispersion in 1.5-4 times, that contributes to performance promotion of 10-15% and power inputs reduction of 10-15%.
Mathematical model of combine harvesters optimal use during the gathering
Authors: Ismailov I. I , Suleymanova N. M
Published: April 2022

A mathematical model of combine harvesters seasonal use is presented. The model employs the elements of operations research theory.