Scientific Works of Vinnytsia National Technical University最新文献

{"title":"DYNAMICS OF SCAP VOLUMEFORMATION INCREASE IN UKRAINE (Eng)","authors":"О. Bereziuk, І. V. Vishtak, М. S. Lemeshev","doi":"10.31649/2307-5392-2021-4-1-6","DOIUrl":"https://doi.org/10.31649/2307-5392-2021-4-1-6","url":null,"abstract":"","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129695354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMPROVEMENT OF THE TRANSPORT-TRANSFER HUBS OPERATION DURING MULTIMODAL PASSENGER TRANSPORTATION WITH THE PARTICIPATION OF THE RAILWAYS AND MOTOR TRANSPORT (Eng)","authors":"D. Lomotko, О. V. Filipskyi, D. Kravchenko","doi":"10.31649/2307-5392-2019-4-51-62","DOIUrl":"https://doi.org/10.31649/2307-5392-2019-4-51-62","url":null,"abstract":"The article proposes to improve the technology of multimodal railway passenger transportation with the participation of the motor transport by coordinating the schedule of traffic of all types of transport. Harmonization of the schedule is carried out under conditions of transport-transfer hub applying modeling of passenger traffic in the process of interaction of various kinds of transport. This allowed to rationalize the capacity of vehicles, reduce the waiting time for passengers by 30% at the points of transfer, and reduce the requirements for the throughput and processing capacity of the transport-transfer hubs. It is established that to systematize and optimize the routes of complex passenger traffic it is necessary to establish a systematic collection of information about passenger traffic using modern means of computer equipment, communication and satellite navigation. This will allow the creation of a multimodal technology for the operation of the passenger transportation network in suburban and interurban routes with the participation of railways and motor transport. In its turn, this technology should be based on the ideology of a \"single ticket\" and a comprehensive liability for compliance with the conditions of passenger transportation. The calculations made for conditions of the transport and transfer center of the city Dnipro gave an assessment of the economic effect at the level of 3.2 million UAH in a year when the load on transport infrastructure is reduced by 9.2%. This will facilitate the creation of multimodal passenger transport operators and the attractiveness of the transport industry for investors.","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125961059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"BASIC MODERN METHODS OF THE PERINATAL DIAGNOSTICS OF THE HIP JOINT DYSPLASIA: WORLD TRENDS (Ukr)","authors":"Dc. Sc. Y. Y. Bilynskiy, О. G. Urvan, А. B. Guralnik","doi":"10.31649/2307-5376-2019-4-1-10","DOIUrl":"https://doi.org/10.31649/2307-5376-2019-4-1-10","url":null,"abstract":"The paper describes in details the modern methods of the comprehensive study of the congenital dysplasia of the hip joint in the antenatal and postnatal periods of infant development. Due to the application of modern technologies there appeared the possibility to visualize the initial changes not only in the osseous tissue but also in the soft tissues, which participate in the formation of the hip joint – cartilaginous tissue, muscles, ligaments, tendons, nervous tissue and vascular structures of the joint. Nowadays the state and density of the osseous tissue of the joint can already be determined in the antenatal period of the fetus development. Modern methods of the investigations enable to study in details and visualize tissues, forming the joint, to the finest details. Main task of the preventive diagnostics of the dysplasia is the decrease of the percentage of children, suffering from hip joint dysplasia (HJD), increase of the level of children health safety. Up to the present there existed two traditional methods of HJ study: clinical and roentgenologic. If clinical diagnostics of the hip dislocation is not very clear, then the detection of the subluxation and HJD in the infants of the first months of life causes certain difficulties. Leading role in the diagnostics of the disorders in the development of HJ is devoted to the roentgenologic method of investigation. However, the radiation dose, absorbed during such treatment does not allow to apply this method of study for the infants of less than three months of age. Besides, the nonostereogenic structures – parts of the femoral head, acetabular roof, which, in the infants of the first year life present greater part of these anatomic formations, are not represented in the X-ray image. As a result, it is impossible to detect the disorders of the enchondral formation, sometimes it is a leading manifestation of the hip joint dysplasia. Application of the method of the artificial contrast study of the joint is rather complicated and dangerous for the child. On the base of studying of various methods of HJD diagnostics ,which are scientifically substantiated and widely used in medical practice further development of basically new and improvement of the available diagnostic techniques, aimed at the solution of the problem of the hip joint dysplasia is possible.","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127479084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PROGRAM APPLICATION FOR STRESS LEVEL MONITORING, BASED ON CLASSIFICATION MODELS (Ukr)","authors":"D. Shevaga, О. K. Gorodetska, L. Dobrovska","doi":"10.31649/2307-5376-2022-4-8-14","DOIUrl":"https://doi.org/10.31649/2307-5376-2022-4-8-14","url":null,"abstract":"The paper considers studies, regarding the stress level. After COVID-19 pandemia and constant stay in the forced isolation, the level of stress became higher due to the increase of anxiety. That is why, the study of the basic mechanisms of the stress and monitoring of different biophysiological and bio-chemical reactions of the organism on the stress is of great interest for the researches. Reliable biomarker or stress indicator could provide accurate monitoring of stress, potentially enabling to avoid pathological states at the early stages. Long lasting stress may have negative health outcomes. Thus, the ability to determine when a person is in the state of stress, may be very useful to avoid health problems, especially for patients with suicidal thoughts. The given study contains the results of the stress level monitoring by means of using the classification models as the forecasting and as a bio signal – heart rate variability (HRV) from the sensors of electrocardiography. Correlation of all variables was carried out , so that only those variables which have high correlation with stress could participate in the models learning. For achieving the set task the following methods have been used: artificial neural network, k-nearest neighbors (KNN), random forest, decision tree. Classification model random forest obtained the highest index of the forecasting accuracy of the presence or absence of the stress – 98 %. On the base of this model program application in programming language R with users interface was developed, it allows to load the data of the electrocardiogram and obtain the conclusion, regarding the level of the stress level. By means of the application the user can control the level of personal stress and lead a healthy life.","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121434239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STUDY OF THE MOTION DYNAMICS OF THE CUTTING TOOL OF THE AUTOMATED DEVICE FOR BRICK BLANKS FORMATION (Ukr)","authors":"V. Perepelytsia","doi":"10.31649/2307-5376-2020-4-42-48","DOIUrl":"https://doi.org/10.31649/2307-5376-2020-4-42-48","url":null,"abstract":"","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"236 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116388817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SPECIAL CONSIDERATIONS FOR THE MATHEMATICAL MODELING AND CONTROL OF THE MULTISECTIONAL ASYNCHROOUS MOTOR (Eng)","authors":"V. Teriaiev, А. Y. Dovbyk","doi":"10.31649/2307-5392-2020-4-25-31","DOIUrl":"https://doi.org/10.31649/2307-5392-2020-4-25-31","url":null,"abstract":"","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123533101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RATE OF THE QUANTITY OF MATERIAL RECOVERY FACILITIES INCREASE IN UKRAINE (Ukr)","authors":"О. Bereziuk, V. O. Kraevskyi","doi":"10.31649/2307-5376-2021-2-7-12","DOIUrl":"https://doi.org/10.31649/2307-5376-2021-2-7-12","url":null,"abstract":"","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124752671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMPROVEMENT OF THE POWER SUPPLY SYSTEM RELIABILITY BY MEANS OF UNMANNED AERIAL VEHICLES (Eng)","authors":"О. G. Grib, І. T. Karpaliuk, S. V. Shvets, N. Zaharenko","doi":"10.31649/2307-5392-2020-2-10-15","DOIUrl":"https://doi.org/10.31649/2307-5392-2020-2-10-15","url":null,"abstract":"","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124770706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GLOBAL BRANDS IN SCIENTIFIC RESEARCH: TRENDS OF THE LAST DECADE (Eng)","authors":"О. V. Shtovba, S. Shtovba","doi":"10.31649/2307-5392-2019-4-26-34","DOIUrl":"https://doi.org/10.31649/2307-5392-2019-4-26-34","url":null,"abstract":"","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127145793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ASSESSMENT OF THE IMPACT OF THE CONDITIONS OF THE DISK MICROSAMPLE FIXATION ON THE PUNCH TEST DIAGRAM, TAKING INTO ACCOUNT THE FRACTURE PROCESS (Eng)","authors":"R. Kravchuk","doi":"10.31649/2307-5392-2020-1-14-19","DOIUrl":"https://doi.org/10.31649/2307-5392-2020-1-14-19","url":null,"abstract":"One of the key parameters, used for the current control of the equipment state to provide its reliable operation is mechanical characteristics of the construction materials, in particular, strength characteristics. The most correct method of their determination is distractive test for uni-axial tension of the samples, manufactured from the investigated materials. The cutting of a certain volume of the material, needed for the fabrication of the sample can be critical for the carrying capacity of the construction. That is why, the indirect methods of the mechanical characteristics determination are developed to minimize the volume of the material, used for samples manufacture. Small punch test can be refereed to these methods. As this method is not standardized, the conditions of the tests are chosen by the researchers at their discretion. The given research considers the impact of the selection of one of the parameters, namely, the clamping force, on the results of the study. Steel 45 was chosen as the model material. Numerical modeling was carried out without taking into account and taking into account sample clamping force, equaled 5, 7.5 and 10 kN. The value of the von Mises equivalent stress in the clamped zone of the sample did not exceed 264 MPa. To take into account the fracture process Gurson – Tvergaard – Needleman (GTN) model was used. The problems was simulated in the dynamic formulation, using the explicit integration scheme. Diagrams of disk microsample punching in the coordinates «load» – «deflection» at the given conditions of fixing is given. By the results of the study it was determined that the force of sample clamping does not influence greatly the punching diagram, that is why, to decrease the time, needed for the numerical calculations it can be neglected. In the course of the experimental tests it was recommended to select the clamping force of the sample so that to avoid plastic deformation of the sample in the area of the clamping.","PeriodicalId":404659,"journal":{"name":"Scientific Works of Vinnytsia National Technical University","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125322924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}