发布求助
文献互助 智能选刊 最新文献

Journal of KONBiN最新文献

筛选
英文 中文
Architectural transformations in distributed telecommunications service systems and problems of ensuring information security 分布式电信服务系统的结构转型和确保信息安全的问题
Journal of KONBiN Pub Date : 2023-12-28 DOI: 10.5604/01.3001.0054.1756
Bohdan Strykhalyuk, Natalija Hots, A. Szelmanowski, G. Kowalczyk, A. Pazur, Maciej Deliś
{"title":"Architectural transformations in distributed telecommunications service systems and problems of ensuring information security","authors":"Bohdan Strykhalyuk, Natalija Hots, A. Szelmanowski, G. Kowalczyk, A. Pazur, Maciej Deliś","doi":"10.5604/01.3001.0054.1756","DOIUrl":"https://doi.org/10.5604/01.3001.0054.1756","url":null,"abstract":"The article discusses the architectural transformations of distributed tele-communications service systems and methods of optimizing their reliability and efficiency. Modern distributed service-oriented networks are presented as complex heterogeneous systems, most of which are currently based on so-called cloud technologies. Cloud service systems were analyzed as an alternative to business customers purchasing their own powerful computing systems, software, and storage technologies. The principle of sharing these resources based on their virtualization was proposed. The main problems and ways of ensuring safety of information in these systems are provided.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"138 9‐10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139149386","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}
引用次数: 0
Influence of surfactant addition to emulsion fuels on the hot section of turbine engines 在乳化燃料中添加表面活性剂对涡轮发动机热段的影响
Journal of KONBiN Pub Date : 2023-12-28 DOI: 10.5604/01.3001.0054.1752
Paweł Niszczota, Marian Gieras
{"title":"Influence of surfactant addition to emulsion fuels on the hot section of turbine engines","authors":"Paweł Niszczota, Marian Gieras","doi":"10.5604/01.3001.0054.1752","DOIUrl":"https://doi.org/10.5604/01.3001.0054.1752","url":null,"abstract":"Due to the growing awareness of ecological threats, more and more attention is paid to the emission problem of undesirable substances into the atmosphere, the source of which is transport and energy. The impact of these factors on the environment can be reduced by using alternative fuels, which are non-fossil fuels, or by modifying these fuels to ensure lower emissions. One of the methods for reducing emissions from engines is the use of water fuel emulsion as fuel, which has a particularly positive effect on the emission of nitrogen oxides at high loads of drive and power units. An important issue affecting the possibility of using this fuel type is the impact of their use on the elements of the units in contact with fuel containing water and, optionally, an emulsifier. This paper presents inspection results of the hot section of a miniature gas turbine powered by Jet-A1 aviation fuel with the emulsifier addition. On the basis of these observations, the components of emulsion fuels were determined, which are the cause of the characteristic deposits occurring on the hot sections of the units after using emulsion fuels.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139148758","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}
引用次数: 0
Examination of fuel flow through a leaky fuel unit using the experimental method and CFD computer modelling 使用实验方法和CFD计算机模型对泄漏燃料单元的燃料流动进行了检查
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3242
L. Ułanowicz, G. Jastrzębski, Łukasz Tomaszek, P. Szczepaniak
{"title":"Examination of fuel flow through a leaky fuel unit using the experimental method and CFD computer modelling","authors":"L. Ułanowicz, G. Jastrzębski, Łukasz Tomaszek, P. Szczepaniak","doi":"10.5604/01.3001.0016.3242","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3242","url":null,"abstract":"The occurrence of an external leak in the aviation fuel unit leads to a catastrophic aviation event. The aim of the research was to estimate the flow of the fuel stream through the fuel filter chamber with its external unsealing. The research was carried out using experimental methods and computer CFD modelling. Experimental studies were carried out on a specially designed test stand. During the tests, the flow rate of the fuel stream flowing out to the environment was changed. Numerical calculations allowed to obtain the values of the stream and pressure inside the leaky filter chamber. The results of numerical calculations were compared with the results of experimental measurements. The CFD method significantly supplemented the information on the fuel flow inside the considered filter chamber at its external unsealing. The use of software based on the CFD method allows to obtain reliable values characterizing the fuel flow in the aviation fuel unit.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126814701","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}
引用次数: 0
Predictive data mining models in the tests of propelling charges 推进装药试验中的预测数据挖掘模型
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3235
Dariusz Ampuła
{"title":"Predictive data mining models in the tests of propelling charges","authors":"Dariusz Ampuła","doi":"10.5604/01.3001.0016.3235","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3235","url":null,"abstract":"In the article, in the introduction, the concept of predictive data mining models and was defined and the purpose of the article was specified. Then, the method of building predic-tive models was characterized and the elements of ammunition were indicated, the test results of which were prepared for the building of models, and the types of ammunition in which the propellant charge is present were indicated. The results of building four data mining models are presented. Predictive models for C&RT, CHAID and exhaustive CHAID decision trees were designed and built. The fourth model analyzed was the SANN model, i.e. the model of neural networks. For each of the tree models, a schema of the designed tree, the rate of false predictions and the parameters of goodness of fit of the built models are shown. For the SANN model, the parameters of the selected neural network were addi-tionally characterized. An analysis of the built models was made and, based on the ob-tained results, the best designed predictive data mining model was indicated. At the end, the graphical form of the workspace predefined by the GC Advanced Comprehensive Classifiers project is shown.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114811138","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}
引用次数: 0
The new concept for the heavy vehicles crossing in the large lowland riverbeds in the North East Strategic Direction 东北战略方向大型低地河床重型车辆穿越新概念
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3239
Piotr Ostrowski, Marta Utratna-Żukowska
{"title":"The new concept for the heavy vehicles crossing in the large lowland riverbeds in the North East Strategic Direction","authors":"Piotr Ostrowski, Marta Utratna-Żukowska","doi":"10.5604/01.3001.0016.3239","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3239","url":null,"abstract":"The current method of crossing river channels by heavy vehicles involves engineering equipment such as the Motorized Floating Bridge. It has high efficiency when crossing regulated channels of large European Lowland rivers with stable hydrological conditions. In the case of unregulated rivers of the Polish Lowlands, this concept needs to be modified due to the high variability of water levels and the shape of the river bottom. This paper presents a new approach to crossing the channels of large lowland rivers by heavy vehicles. It is based on hydrological analyses and experience gained during many years of hydrographic, geological, and geomorphological studies conducted at the Department of Hydraulic Engineering and Applied Geology of the Warsaw University of Life Sciences (SGGW).","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"28 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121014327","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}
引用次数: 0
Possible application of low-cost laser scanners and photogrammetric measurements for inspections in shaft sinking process 低成本激光扫描仪和摄影测量技术在井筒掘进过程检测中的应用前景
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3245
Wojciech Rutkowski
{"title":"Possible application of low-cost laser scanners and photogrammetric measurements for inspections in shaft sinking process","authors":"Wojciech Rutkowski","doi":"10.5604/01.3001.0016.3245","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3245","url":null,"abstract":"Article aims to present possibility of application low-cost LiDAR scanner of iPhone 13Pro for workings inspections in mining shaft sinking process. Main goal of research was to verify accuracy and usefulness of generated 3D models. Measurements were conducted inside model of mining shaft on the surface. Based on validation, conducted with use of professional TLS, iPhone 13 Pro LiDAR scanner usefulness was proved for inspections that dont need high accuracy. Tested iPhone 13 Pro LiDAR scanner measures up to 5m with accuracy class 2,5. With simultaneous camera recording provides quick triaxial reflection of object with color and texture of material.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"53 35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133476936","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}
引用次数: 1
Analysis of an accelerating model of motor vehicle with the uncontrolled steering wheel 具有无控方向盘的机动车加速模型分析
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3243
J. Zalewski
{"title":"Analysis of an accelerating model of motor vehicle with the uncontrolled steering wheel","authors":"J. Zalewski","doi":"10.5604/01.3001.0016.3243","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3243","url":null,"abstract":"In this paper a continuation of the previous research has been presented. A simulation of a vehicles acceleration in various road conditions but without a drivers control has been taken into account. The main aim of this paper was to answer the question whether the random road conditions could affect the vehicle while accelerating while a driver cannot control the direction of its motion. The three various maximum amplitudes of the irregularities for both the dry and the icy road surface were used. Almost different road profiles were also adopted for the analyzed maneuver, which defines a specific coefficient. Apart from no control of the vehicle the initial speed was set to 5 km/h and after 1 s the vehicle started to accelerate. The time of reaching the full throttle (100%) was only 0.25 s which provided a rapid acceleration. The simulation time was 10 s.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127106096","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}
引用次数: 0
A proposal of a hydrogen injection system in to a miniature turbojet engine 微型涡轮喷气发动机氢喷射系统的设计
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3240
Wojciech Prokopowicz, A. Frąckowiak
{"title":"A proposal of a hydrogen injection system in to a miniature turbojet engine","authors":"Wojciech Prokopowicz, A. Frąckowiak","doi":"10.5604/01.3001.0016.3240","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3240","url":null,"abstract":"The solution proposed in this article, based on direct injection of hydrogen into the combustion chamber, offers many benefits, including a better volumetric efficiency, complete combustion (avoidance of premature ignition and backfire) and significant benefits in terms of power density when compared to engines, in which hydrogen is injected into the air inlet duct. The article discusses advantages and disadvantages of systems responsible for injecting hydrogen into the combustion chamber based on the operational phases of the GTM 400 engine developed by the JET-POL Company. The use of an electronic controller combined with an injector placed in an appropriate place inside the combustion chamber allow for the mentioned engine to be modified this way to optimize its power, performance and emissions. The article discusses matters related to challenges faced by materials used to make components of hydrogen injectors as well as research on the topic in question with the use of diesel engines. The article considers the impact of a low mass density and hydrogen energy, high speed of sound and low thickness on the injection system and components of a miniature turbojet engine. Physical attributes shaped by hydrogen fuel directly affect the size of components, selection of materials and tribology of turbojet engines. The authors suggest that the solutions used in the research on the GTM 400 engine can be used in the future to build hydrogen systems (hydrogen injection, storage and distribution) for fullscale passenger aircraft jet engines.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127516454","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}
引用次数: 0
The impact of operating fluids used to service aircraft on the durability of airfield concrete pavements 用于飞机维修的操作流体对机场混凝土路面耐久性的影响
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3241
P. Nita, M. Linek
{"title":"The impact of operating fluids used to service aircraft on the durability of airfield concrete pavements","authors":"P. Nita, M. Linek","doi":"10.5604/01.3001.0016.3241","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3241","url":null,"abstract":"The manuscript intends to demonstrate the impact of aircraft operating fluids on the parameters of airfield hardened concrete. In the studies conducted over the longer term than provided for in the applicable standards, the impact of these operating fluids on the durability of C 30/37 concrete composed with the use of basalt and granite aggregate was determined. The tests showed that the discussed operating fluids have a destructive effect on airfield runway concrete to a varying degree. The currently applied agents that protect runway pavement against its deterioration fulfil their function only in a limited scope.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120903559","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}
引用次数: 0
Application of liquid hydrogen as a fuel for future passenger aircraft 液氢作为未来客机燃料的应用
Journal of KONBiN Pub Date : 2023-03-31 DOI: 10.5604/01.3001.0016.3246
Paweł Stężycki
{"title":"Application of liquid hydrogen as a fuel for future passenger aircraft","authors":"Paweł Stężycki","doi":"10.5604/01.3001.0016.3246","DOIUrl":"https://doi.org/10.5604/01.3001.0016.3246","url":null,"abstract":"The paper briefly reviews a recent initiative on the application of hydrogen as a fuel for future commercial aircraft. Special attention is paid to the benefits of using liquid hydrogen (LH2) to power aircraft engines. A comparison of LH2 to other fuels is presented, as well as a comparison of LH2 hazard to hazard imposed by typical jet fuel. Major attention is focused on the combustion of hydrogen benefits in turbine engines with classic deflagrative combustion chamber and engines utilizing detonative combustion of the hydrogen-air mixture. Benefits and problems with the utilization of LH2 are discussed in this paper.","PeriodicalId":342247,"journal":{"name":"Journal of KONBiN","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132585214","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}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信