Vojnotehnicki Glasnik最新文献_第10页

Biometric standards and methods 生物识别标准和方法

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/vojtehg69-32296

Ivan Tot, J. Bajčetić, B. Jovanovic, Mladen Trikoš, Dušan Bogićević, T. Gajić

{"title":"Biometric standards and methods","authors":"Ivan Tot, J. Bajčetić, B. Jovanovic, Mladen Trikoš, Dušan Bogićević, T. Gajić","doi":"10.5937/vojtehg69-32296","DOIUrl":"https://doi.org/10.5937/vojtehg69-32296","url":null,"abstract":"Introduction/purpose: Nowadays, user identification systems play a very important role in modern society. Complex security requirements have led experts to explore ways in which biometric data can be used to identify user identities. This paper presents an overview of biometric standards and methods which can be used to identify users in biometric systems, and therefore to protect information and communication systems. Methods: This paper deals with the problem of standardization in the field of biometrics. The first part of the paper presents concrete examples of the most widely used biometric standards. The second part of the paper gives an overview of the most used biometric methods. Results: The obtained results show that the development of biometric systems and biometric sensors contributes to better protection of identity from misuse, because biometric technologies have great potential for improving the security and accuracy of system operation. Biometric systems improve the security of users and also provide much greater precision in establishing identity. Conclusion: The development of biometric standards should focus on their interconnectivity, as well as on increasing connectivity with other IT standards.","PeriodicalId":30576,"journal":{"name":"Vojnotehnicki Glasnik","volume":"s3-38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90827564","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: 2

Revisiting and revamping some novel results in F-metric spaces 对f -度量空间中一些新结果的重访与修正

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/VOJTEHG69-29615

Z. Mitrović, Mudasir Jounis, M. Rajović

引用次数: 1

Java GUI application for comparing the levels of biometric security: Fingerprint vs. Iris 用于比较生物识别安全级别的Java GUI应用程序:指纹与虹膜

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/vojtehg69-32007

Komlen Lalović, M. Bogdanoski

引用次数: 1

Pulverized river shellfish shells as a 904 cheap adsorbent for removing of malathion from water: Examination of the isotherms, kinetics, thermodynamics and optimization of the experimental conditions by the response surface method 河贝粉作为水中马拉硫磷的904廉价吸附剂:响应面法的等温线、动力学、热力学考察及实验条件优化

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/vojtehg69-32844

Z. Veličković, Bogdan Vujičić, Vladica S. Stojanović, Predrag Stojisavljević, Z. Bajić, V. Đokić, Negovan Ivanković, P. Otrísal

{"title":"Pulverized river shellfish shells as a 904 cheap adsorbent for removing of malathion from water: Examination of the isotherms, kinetics, thermodynamics and optimization of the experimental conditions by the response surface method","authors":"Z. Veličković, Bogdan Vujičić, Vladica S. Stojanović, Predrag Stojisavljević, Z. Bajić, V. Đokić, Negovan Ivanković, P. Otrísal","doi":"10.5937/vojtehg69-32844","DOIUrl":"https://doi.org/10.5937/vojtehg69-32844","url":null,"abstract":"Introduction/purpose: In this study, we investigated the possibility of removing the organophosphorus pesticide malathion from water using a new adsorbent based on the biowaste of river shell shards from the Anodonta Sinadonta woodiane family, a material that accumulates in large quantities as waste on the banks of large rivers. Two adsorbents were tested - mechanically comminuted river shells (MRM) and mechanosynthetic hydroxyapatite from comminuted river shells (RMHAp). Methods: The obtained adsorbents were characterized and tested for the removal of the organophosphorus pesticide malathion from water. In order to predict the optimal adsorption conditions using the Response Surface Method (RSM), the authors investigated the influence of variable factors (adsorption conditions), pH values, adsorbent doses, contact times, and temperatures on the adsorbent capacity. Results: The best adsorption of malathion was achieved at mean pH values between 6.0 and 7.0. The adsorption data for malathion at 25, 35, and 45 °C were compared using the Langmuir, Freundlich, DubininRadushkevich (DR), and Temkin isothermal models, as well as pseudofirst order, pseudo-second order and Elovic kinetic models for modeling adsorption kinetics. The maximum Langmuir adsorption capacity for MRM and RMHAp at 25 °C was 46,462 mg g-1 and 78,311 mg g-1 , respectively. Conclusion: The results have showed that malathion adsorption on both adsorbents follows the pseudo-second kinetic model and the Freundlich isothermal model. The thermodynamic parameters indicate the endothermic, feasible, and spontaneous nature of the adsorption process.","PeriodicalId":30576,"journal":{"name":"Vojnotehnicki Glasnik","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75409397","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

Prospects for using remote sensing data in the armed forces, other troops and military formations of the Republic of Kazakhstan 在哈萨克斯坦共和国武装部队、其他部队和军事编制中使用遥感数据的前景

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/VOJTEHG69-28698

E. Zakiev, S. Kozhakhmetov

{"title":"Prospects for using remote sensing data in the armed forces, other troops and military formations of the Republic of Kazakhstan","authors":"E. Zakiev, S. Kozhakhmetov","doi":"10.5937/VOJTEHG69-28698","DOIUrl":"https://doi.org/10.5937/VOJTEHG69-28698","url":null,"abstract":"Introduction/aim: This article is written to acquaint readers with the development of a space system of Earth remote sensing in the Republic of Kazakhstan using remote sensing data to support the Armed Forces, other troops and military formations of the Republic of Kazakhstan. Methods: An analytical approach to the study of the development of space and information technologies has led to qualitative changes in the field of remote sensing of the Earth. Conclusions were also made based on the analysis of the historical aspects of the formation and development of space systems for remote sensing of the Earth. This article deals with significant improvements in the field of geoinformation support to the Armed Forces, other troops and military formations in the interests of the security of the Republic of Kazakhstan using high-resolution satellite images from domestic spacecraft to create digital state topographic maps of the entire scale series with simultaneous updating. Results: The article provides a brief overview of remote sensing systems using geoinformation technologies in foreign countries and in the Republic of Kazakhstan. Conclusions: A special unit \"Photogrammetric center for remote sensing and UAV data processing\" is capable of processing data of remote sensing and UAVS for the armed forces, other troops and military units of the Republic of Kazakhstan. Data processing technologies have little in common with traditional processing and representation of geographical data, and finally, geographical data serves only as a basis for solving a large number of applied problems.","PeriodicalId":30576,"journal":{"name":"Vojnotehnicki Glasnik","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71188421","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

Improvement of safety measures by applying a technical solution on the M-80A Infantry combat vehicle 通过在M-80A步兵战车上应用技术解决方案改进安全措施

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/vojtehg69-31837

Milan Končar, Anarbaev Odil, Dobrivoje Mutavdžić, G. Lazic, Željko Jokić

{"title":"Improvement of safety measures by applying a technical solution on the M-80A Infantry combat vehicle","authors":"Milan Končar, Anarbaev Odil, Dobrivoje Mutavdžić, G. Lazic, Željko Jokić","doi":"10.5937/vojtehg69-31837","DOIUrl":"https://doi.org/10.5937/vojtehg69-31837","url":null,"abstract":"Introduction/purpose: The paper presents a solution for overcoming a possible problem - breach of safety measures when operating the BVP M80A Infantry Combat Vehicle on a training ground during tactical exercises and shooting at night. The crux of the problem is that the officer in charge of a tactical exercise and shooting is not in a position to observe in which direction the gunner-operator aims because no device has been installed on the BVP M-80A to signal this. Methods: After deploying the vehicle in practice and and on the basis of experience during shooting, it was concluded that there is a problem of controlling shooting at night and in reduced visibility conditions. Results: The paper provides a practical solution to prevent situations such as disorientation, impossibility of observing targets, and turning weapons towards the outside the shooting range boundaries, thus violating the security measures of all participants in the exercise including the BVP M80A unit itself. A technical improvement was implemented on the vehicle by installing a signaling device that gives visual information to the officer in charge of shooting in which direction the weapon is turned. Conclusion: The installed signaling device enables the officer who commands the exercise and shooting to be in control in a timely manner, eliminate possible causes of violation of security measures, and successfully implement the planned activity.","PeriodicalId":30576,"journal":{"name":"Vojnotehnicki Glasnik","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79144034","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

Modelling and performance analysis of the BVP M-80A hybrid drive BVP M-80A混合动力传动的建模与性能分析

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/VOJTEHG69-28232

S. Milićević, S. Muždeka

{"title":"Modelling and performance analysis of the BVP M-80A hybrid drive","authors":"S. Milićević, S. Muždeka","doi":"10.5937/VOJTEHG69-28232","DOIUrl":"https://doi.org/10.5937/VOJTEHG69-28232","url":null,"abstract":"Introduction: Hybrid technology has been successfully incorporated into the industry of passenger and commercial vehicles. Driven by the success and benefits that hybrid technology brings, many defense organizations around the world invest in the development of hybrid technology for combat vehicles and develop prototypes of tracked combat vehicles which have lower fuel consumption, better performance, better exhaust emission, and additional onboard electric power. However, various technical challenges must be resolved before it comes to the introduction of hybrid tracked combat vehicles in operational use. Several successful tests of prototypes have been conducted so far, but there are still restrictions on key technologies such as electric motors, electronics, and storage of electricity. In such conditions, where finance is limited, mistakes cannot be allowed nor spending a lot of resources on planning, building prototypes, and testing. Method: Therefore, it is clever to run the simulation software with which it is possible to examine various parameters in simulated conditions which more or less mimic real operating conditions. This paper aims to show one of possible solutions concerning the selection of appropriate technologies of hybrid drive, to propose a system solution for a hybrid BVP M80A, and to display a simulation hybrid drive model and the results obtained from the model devised in Simulink. Results: The results obtained by the simulation show that the proposed hybrid drive solution provides better performance while retaining key drivetrain elements of the vehicle. Conclusion: Only turning parameters are considered during the simulation but it is clear that the hybrid drivertrain has advantages related to straightline motion as well. Also, sound projections about the drivetrain performance and control can be made with the use of the proposed model.","PeriodicalId":30576,"journal":{"name":"Vojnotehnicki Glasnik","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71188233","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: 3

Answers to the comments on the article "Monitoring COVID-19 is like instrument flying" submitted by David D. Pokrajac 针对David D. Pokrajac发表的文章《COVID-19监测就像仪器飞行》的评论

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/vojtehg69-32740

Petar Kočović

引用次数: 0

On new military technologies and concepts explored from the Syrian conflict experience 从叙利亚冲突经验中探索新的军事技术和概念

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/vojtehg69-31659

N. Nikolić

{"title":"On new military technologies and concepts explored from the Syrian conflict experience","authors":"N. Nikolić","doi":"10.5937/vojtehg69-31659","DOIUrl":"https://doi.org/10.5937/vojtehg69-31659","url":null,"abstract":"Introduction/purpose: The purpose of this paper is to presents some tendencies stemming from the experiences from the ongoing Syrian conflict towards the development of new military concepts and technologies. The manner, scope and dynamics of exploitation of the combat experience from the Syrian conflict is a good example how great powers improve the capabilities of their defense systems. Methods: An extensive content analysis of selected reference sources has been applied. The system approach was used for a structural and balanced presentation of the available information. The comparative analysis has confirmed some similarities in the behavior of the great powers in terms of deploying and testing complex combat systems of strategic importance in local wars. Inductive thinking has contributed to the synthesis of appropriate conclusions. Results: Among the presence of several great and regional powers heavily involved in this conflict, Russia's is considered to be the most dominant and as such is the main subject of investigation in this paper. Field testing of new military equipment is known to be important but of extreme importance is its testing under real combat conditions. In parallel with intensive testing of a wide range of military technologies, there are indicators of developing new concepts, doctrines, and organizational upgrades on the basis of the Syrian combat experiences. Conclusion: From the standpoint of military technology and concept development, the Russian endeavor in Syria has become an example of a comprehensive and systematic aproach to learning, training, innovations, and implementations of the most relevant factors in the development of a modern military organization as a response to challenges of contemporary armed conflicts.","PeriodicalId":30576,"journal":{"name":"Vojnotehnicki Glasnik","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87032669","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

Teaching in conditions of difficult knowledge transfer due to the state of emergency caused by the pandemic 由于大流行造成的紧急状态，在知识转移困难的情况下进行教学

Vojnotehnicki Glasnik Pub Date : 2021-01-01 DOI: 10.5937/vojtehg69-33522

Miloš Mravik, Marko Šarac, M. Veinovic, Nuno Pombo

{"title":"Teaching in conditions of difficult knowledge transfer due to the state of emergency caused by the pandemic","authors":"Miloš Mravik, Marko Šarac, M. Veinovic, Nuno Pombo","doi":"10.5937/vojtehg69-33522","DOIUrl":"https://doi.org/10.5937/vojtehg69-33522","url":null,"abstract":"Introduction/purpose: This paper presents the transformation of the current, classical approach to teaching. Online platforms enable students with and without disabilities to follow classes without hindrance during the lecture period. After the lecture, they are allowed to view video and presentation materials. The main advantage of this way of teaching is the possibility of attending classes from any location and from any device; it is only important to be connected to the Internet. Methods: Full integration with the already existing Faculty Information System has been performed. The paper describes a new approach to teaching and illustrates the expected benefits of online teaching. The platforms used in this integration are Microsoft Azure, Microsoft Office 365 Admin, Microsoft Teams, Microsoft Stream and Microsoft SharePoint. Results: The result of the test of work with students showed that by introducing a system for online teaching, we directly affect the improvement and quality of teaching. Conclusion: Considering all the results, it can be concluded that the transition to the online way of teaching allows end listeners a comprehensive transfer of knowledge as well as re-listening to the same. This model can be used for an unlimited number of users in all Institutions, regardless of whether the field of activity of these Institutions is of educational origin.","PeriodicalId":30576,"journal":{"name":"Vojnotehnicki Glasnik","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75485067","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