The Journal of Zhytomyr State Technological University. Series: Engineering最新文献

{"title":"Renewable diesel fuel and FT-fuel as alternative to diesel fuel","authors":"Руслана Віталіївна Колодницька, Олександр Кравченко","doi":"10.26642/tn-2019-1(83)-3-11","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-3-11","url":null,"abstract":"","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129344121","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":"Determination of soil summary pressure on basket walls","authors":"V. Vapnichna, N. Shevchuk","doi":"10.26642/tn-2019-1(83)-262-269","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-262-269","url":null,"abstract":"The analysis of modern design methods for mounting the pits side indicates the difficulty in predicting the magnitude and distribution of the load on supporting flexible walls. Existing normative methods for calculating supporting structures of foundation pits are generally aimed at ensuring their durability and stability. Using these methods, load on the fence, depending on the strength parameters of the soil, determine shifts, bending moments, transverse and longitudinal forces, and calculate the parameters of the fence it is necessary to ensure the strength of the structure. The necessary depth of its foundation determines the condition of the stability of the fence. The generalization of knowledge in this area, as well as the development of a mathematical model for numerical implementation of the considered problem, will increase the level of rational consolidation of deep pits. In the course of the study, a mathematical model was developed from the following types of mounting: drill piles, tangent drill piles, \"Larsen\" tufts, monolithic \"wall in the ground\" in the GeoWall software complex, which is widely used to calculate the strength and stability of supporting walls of foundation pits of different type. According to the results of computer simulation, the largest horizontal deformations are inherent to a type-L4-type tongue mount, which is about 8 cm. The maximum deformation patterns of the drill piles and tangent drill piles are quite similar, respectively; they are 4.1 and 3.9 cm. Therefore, for further the study was adopted as a monolithic \"wall in the soil\", as the depth of the development of the pit horizontal deformations increase in the range from 0.3 cm to the maximum displacement of 2.6 cm. Maximum vertical displacement of compression is about 0.5 cm.","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130642088","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":"Establishing patterns of destruction of naturally disturbed rock massifs by an explosion","authors":"Олександр Олександрович Фролов, Микита Ігорович Бельтек","doi":"10.26642/tn-2019-1(83)-283-288","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-283-288","url":null,"abstract":"","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127048323","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":"Research and application of blockchain technology in transport logistics","authors":"Юрій Ярославович Тільняк, Ярослав Ігорович Корнага","doi":"10.26642/tn-2019-1(83)-12-17","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-12-17","url":null,"abstract":"","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"706 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123835387","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":"Human factor in question of improving the efficiency of city public transport service","authors":"Олександр Петрович Кухарчук, Володимир Петрович Шумляківський, Володимир Євгенович Титаренко","doi":"10.26642/tn-2019-1(83)-18-24","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-18-24","url":null,"abstract":"","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125356348","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":"A study of indicators of expected operational losses in the extraction of block raw materials with disk stone cutting machine","authors":"Василь Васильович Мамрай, Валентин Вацлавович Коробійчук, Олександр Миколайович Толкач, Володимир Олександрович Шлапак","doi":"10.26642/tn-2019-1(83)-270-275","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-270-275","url":null,"abstract":"","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123367126","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 state of forest resources of zhytomyr region","authors":"D. V. Shomko, V. V. Shomko, I. Davydova, Дарина Василівна Шомко, Віта Вікторівна Шомко, І. В. Давидова","doi":"10.26642/tn-2019-1(83)-299-303","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-299-303","url":null,"abstract":"The state of forest fund is studied; the volume of forest use and reforestation in the region was analyzed, resources of Zhytomyr region is investigated in this work; the structure of the forest, the main reasons for unsatisfactory state of forests were revealed. It has been established that the forests of Zhytomyr region as a whole, and especially pine trees, are characterized by disproportion of the distribution of plantings by age. \u0000During the writing of the work, legal acts and legislative documents of Ukraine, textbooks, manuals, monographs, scientific publications devoted to the subject of research were used. The analysis of statistical data on the structure and condition of the forest fund of Zhytomyr region was carried out, the dynamics of its structure was determined, existing information on the representation of natural forest crops in the region of research was supplemented, the main problems of protection and rational use of forest ecosystems were outlined. \u0000The main reason for the unsatisfactory state and death of forests in the territory of Zhytomyr region is the lack of timely forestry care, which is natural for the given region, since a significant part of the forest resources of the region suffered radioactive contamination after the Chernobyl accident.","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127617757","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":"Innovative solutions of the underground exploitation of coal deposits","authors":"Андрій Олександрович Хорольський, Володимир Герасимович Гріньов, Олександр Рюрикович Мамайкін","doi":"10.26642/tn-2019-1(83)-289-298","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-289-298","url":null,"abstract":"The article offers the development of a tool to estimate the state of operation schedules of coal mines relying upon the analysis of actual state of an operation schedule taking into consideration hierarchic connections between the system components. Comprehensive research method has been applied. The method involves statistical analysis to determine the dependence between performance of potential index and a number of independent indices concerning production and commercial operations of a mine, and Solow-Swan model method to estimate level of potential and coal mine reception of innovations. Methods of discrete mathematics have been used in the context of network models to optimize operational parameters and to normalize a structure of manufacturing relations. Regularities, concerning formation of production and commercial operations of mines, have been determined. The regularities involve concentration level of mining, labour productivity, stope advance, and prime cost of end product. Mathematical models, describing “performance potential” index, have been developed. The index is based upon the analysis of dependences between it and mining and geological as well as technological parameters of a mine. It has been proved that simulation of optimum parameter values of operation schedule means complete implementation of economic potential of the mine, i.e. ultimately achievable (reference) level since the level correspondence makes operation schedule of a mine receptive to innovations. A model has been proposed to analyze the efficiency of operation schedules of coal mines as for the estimation of a level of potential and coal mine reception of innovations. Further representation of a structure of manufacturing relations in the form of a network model helps reduce prime cost of mining and to increase labour productivity. The approach can be applied in the process of operative and long-term planning activities by coal industry enterprises as well as enterprises belonging to the related industries, and to determined ultimately achievable rate of economic surplus value. Corresponding software has been developed to implement the methods.","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116611905","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":"Modeling and research of the biological water treatment process considering the temperature regime","authors":"Andrii Safonyk, Іван Миколайович Таргоній, Петро Олександрович Лакус","doi":"10.26642/tn-2019-1(83)-115-125","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-115-125","url":null,"abstract":"","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133040745","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":"The influence of the parameters of a vibration separator with a horizontal sieves layering on the intensity of separation","authors":"З. А. Стоцько, В. Г. Топільницький, Ярослав Маркіянович Кусий, Д. П. Ребот","doi":"10.26642/tn-2019-1(83)-46-52","DOIUrl":"https://doi.org/10.26642/tn-2019-1(83)-46-52","url":null,"abstract":"","PeriodicalId":193229,"journal":{"name":"The Journal of Zhytomyr State Technological University. Series: Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123541238","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}