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Thermal and thermomechanical properties of boron nitride-filled acrylonitrile butadiene styrene (ABS) composites 氮化硼填充丙烯腈-丁二烯-苯乙烯(ABS)复合材料的热力学性能
Acta Technica Jaurinensis Pub Date : 2023-07-25 DOI: 10.14513/actatechjaur.00706
L. Lendvai, D. Rigotti
{"title":"Thermal and thermomechanical properties of boron nitride-filled acrylonitrile butadiene styrene (ABS) composites","authors":"L. Lendvai, D. Rigotti","doi":"10.14513/actatechjaur.00706","DOIUrl":"https://doi.org/10.14513/actatechjaur.00706","url":null,"abstract":"The present study aims at investigating the effect of hexagonal boron nitride (hBN) nanoplatelets on the properties of acrylonitrile butadiene styrene (ABS) polymer. Composites containing 0-30 vol% hBN were prepared through batchwise melt compounding, which was followed by compression molding. Subsequently, the thermal and thermomechanical properties of the fabricated samples were investigated. The dynamic mechanical analysis (DMA) revealed that the storage modulus of the samples was markedly improved in the entire examined temperature range, while the glass transition temperature also gradually increased as a function of hBN content. According to the thermogravimetric analysis (TGA), the incorporated boron nitride particles enhanced the thermal stability of ABS composites, exhibiting a notably higher decomposition onset temperature. Additionally, the thermal conductivity of the ABS/hBN composites significantly increased by 570% when the hBN content was 30 vol%.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124638097","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
Alternative Routes for Deliveries of Kazakh Crude Oil Shipments to the European Union 哈萨克斯坦向欧盟运送原油的替代路线
Acta Technica Jaurinensis Pub Date : 2023-07-07 DOI: 10.14513/actatechjaur.00705
E. Akhmedov
{"title":"Alternative Routes for Deliveries of Kazakh Crude Oil Shipments to the European Union","authors":"E. Akhmedov","doi":"10.14513/actatechjaur.00705","DOIUrl":"https://doi.org/10.14513/actatechjaur.00705","url":null,"abstract":"The situation with crude oil shipments from Kazakhstan to the European Union has seriously deteriorated since 24 February 2022 when Russia started its invasion of Ukraine. A series of different incidents, which complicated these deliveries, started soon after the beginning of the invasion and this has again brought to light the need to diversify the export routes for the Kazakh crude oil. In spite of numerous previous appeals, the dependence on the transit via the Russian territory only increased over the last years. This paper analyses the reasons for this increased dependence, considers the alternative routes and their attending circumstances and attempts to suggest potential ways out of this situation. Considering this topic, it is essential to mention that Kazakhstan is among the five top suppliers of crude oil to the European Union, and, at the same time, the European Union is the biggest importer of Kazakh crude oil.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129090173","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
Analysis of Truck Crashes with W-beam Guardrail 装有w梁护栏的货车碰撞分析
Acta Technica Jaurinensis Pub Date : 2023-07-07 DOI: 10.14513/actatechjaur.00690
Tung Tran Thanh, Teng Tso-Liang
{"title":"Analysis of Truck Crashes with W-beam Guardrail","authors":"Tung Tran Thanh, Teng Tso-Liang","doi":"10.14513/actatechjaur.00690","DOIUrl":"https://doi.org/10.14513/actatechjaur.00690","url":null,"abstract":"W-beam guardrail is an excellent method for enhancing traffic safety. The W-beam guardrail comprises of a W-shaped segment and specialized constructions known as support posts. Identifying the effect of the W-beam heights, post spacing, shaped supporting posts, and post-soil interaction may be crucial to improving the crashworthiness of W-beam guardrail. This study evaluated the W-beam guardrail using a finite element model in the event of a 10,000 kg truck collision. Simulations of crash tests were conducted to evaluate the crashworthiness of the W-beam guardrail in accordance with European standard EN1317. The results of this analysis can assist evaluate the design of W-guardrails and guide the future development of guardrail technologies.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123892621","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
Optimizing cutting fluid usage in cutting processes on CNC machines: A conceptual digital twin model for ecological sustainability 优化数控机床切削过程中切削液的使用:生态可持续性的概念数字孪生模型
Acta Technica Jaurinensis Pub Date : 2023-06-14 DOI: 10.14513/actatechjaur.00697
Milica Barać, N. Vitković, D. Marinković, P. Janković, Dragan Mišić
{"title":"Optimizing cutting fluid usage in cutting processes on CNC machines: A conceptual digital twin model for ecological sustainability","authors":"Milica Barać, N. Vitković, D. Marinković, P. Janković, Dragan Mišić","doi":"10.14513/actatechjaur.00697","DOIUrl":"https://doi.org/10.14513/actatechjaur.00697","url":null,"abstract":"The increasing demand for environmentally friendly manufacturing processes has led to the need for optimizing the use of cutting fluids in turning and milling processes. Cutting fluids are commonly used in cutting processes to reduce tool wear and improve cutting performance. However, cutting fluids have a negative impact on environment and human health. This paper proposes a conceptual model of аn information system based on digital twin of the production process. This system will enable monitoring of the manufacturing process and provide a decision support system for helping industrial engineers manage its parameters. The model is represented by using SADT (Structured Analysis and Design Technique), and it is presented by using one of the most common problems of optimizing cutting fluid usage in cutting processes on CNC machines from an ecological perspective. The proposed model considers various cutting process parameters (cutting speed, feed rate, depth of cut) and cutting environment factors (cutting process temperature) to determine the optimal cutting fluid flow rate. To optimize the usage of cutting fluid, the smart information system acquires, processes, and stores data from cutting process temperature and cutting fluid flow sensors to establish the correlation between process parameters and sensor data, which is then used to develop a model. The proposed model can be integrated with existing CNC machines to reduce environmental impact while maintaining high productivity. This paper provides a promising approach for optimizing cutting fluid usage in CNC machining processes while promoting ecological sustainability.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"367 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115472560","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
Data-driven analysis of transport and weather impact on urban air quality 交通和天气对城市空气质量影响的数据驱动分析
Acta Technica Jaurinensis Pub Date : 2023-06-14 DOI: 10.14513/actatechjaur.00698
B. Csonka
{"title":"Data-driven analysis of transport and weather impact on urban air quality","authors":"B. Csonka","doi":"10.14513/actatechjaur.00698","DOIUrl":"https://doi.org/10.14513/actatechjaur.00698","url":null,"abstract":"Many cities face low air quality. To better predict the exceedance of air quality limits, the traffic’s contribution to air pollution was analysed in this paper. Several studies used a twin site approach to determine the impact of urban traffic; however, it requires the deployment of stations at various locations. A time variant analysis to determine traffic’s contribution and regression analysis were applied to determine the weather’s impact. The results were validated using actual traffic data. It was found that the traffic’s contributions to CO and NO2 were 22 and 30%. It was noted that the seasonal fluctuation of NO2 is significantly influenced by precipitation. Long-term trends of pollutants require further research.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117290059","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
Rheological characterisation of bituminous binder blends for the design of asphalt mixes containing high recycled asphalt content 用于设计高再生沥青含量沥青混合料的沥青粘结剂共混物的流变特性
Acta Technica Jaurinensis Pub Date : 2023-05-31 DOI: 10.14513/actatechjaur.00694
C. Tóth, L. Petho, S. Rosta
{"title":"Rheological characterisation of bituminous binder blends for the design of asphalt mixes containing high recycled asphalt content","authors":"C. Tóth, L. Petho, S. Rosta","doi":"10.14513/actatechjaur.00694","DOIUrl":"https://doi.org/10.14513/actatechjaur.00694","url":null,"abstract":"Reclaimed asphalt pavement (RAP) is gained from road reconstructions; however, its usage is less optimised in Hungary and neighbouring regions, since on the project level the proportion of RAP in the asphalt mixes is only 10-15%. This is less than the recommended level in other EU countries. The higher usage of RAP provides economic and environmental advantages, decreasing the need for new materials, the transport cost, and the carbon footprint. The composition of the resultant bituminous binder blend is a critical element in the asphalt mix design with high RA content. This paper discusses the design of the resultant bituminous binder blend to provide performance and compliance characterisation. This paper also presents the complex rheological analysis of the base bitumen, the bitumen extracted from the RA and the bituminous binder blend, applying the dynamic shear rheometer (DSR) device. It was shown that for paving grade bitumen (B), polymer modified bitumen (PmB) and rubber modified bitumen (GmB), the addition of higher proportions of RA content is possible without compromising on the performance of the binder blend. With a carefully chosen paving grade bitumen it is possible to utilise up to 40% RA content. For the polymer modified bitumen, the limit of the RA content is 20%. For the rubber modified bitumen, the various proportions of RA contents showed no or negligible changes in the characteristics of the bitumen and the RA content can reach 30% in this case.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125260119","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
Data Integration Framework to Collect Data from OT/IT Systems 从OT/IT系统收集数据的数据集成框架
Acta Technica Jaurinensis Pub Date : 2023-05-31 DOI: 10.14513/actatechjaur.00689
B. Szucs
{"title":"Data Integration Framework to Collect Data from OT/IT Systems","authors":"B. Szucs","doi":"10.14513/actatechjaur.00689","DOIUrl":"https://doi.org/10.14513/actatechjaur.00689","url":null,"abstract":"Industry 4.0 and industrial data processing, due to its inherent possibilities, is gaining more and more emphasis in production companies these days. In a corporate environment, the age of equipment is extremely heterogeneous, in addition to state-of-the-art equipment, legacy systems can also be found in the machine park, which do not have appropriate communication protocols. Also, with the increase in the number of data sources, the management of data is becoming more and more challenging. Not only the operational technology, but also the connection of different IT systems and the extraction of data pose challenges. The different data processing use-cases using partly or entirely the same data sources, so it is necessary to extract and transmit the data to the target systems in a standard way, and avoiding an increase in the number of point-to-point interfaces. In this work we present a possible framework, to solve the above mentioned problems in industrial environment, with the introduction of standardized naming conventions, OT/IT gateways, data integration and distribution layers.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129425858","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 survey on efforts to apply IPv6 in V2X communication networks IPv6在V2X通信网络中的应用综述
Acta Technica Jaurinensis Pub Date : 2023-05-31 DOI: 10.14513/actatechjaur.00693
Hassan Farran, L. Bokor
{"title":"A survey on efforts to apply IPv6 in V2X communication networks","authors":"Hassan Farran, L. Bokor","doi":"10.14513/actatechjaur.00693","DOIUrl":"https://doi.org/10.14513/actatechjaur.00693","url":null,"abstract":"This survey focuses on the application possibilities of using Internet Protocol (version 6) in Vehicle-to-Everything (V2X) networking architectures by analyzing existing standards and related papers in this field. The article explains the terminology used in IP-based V2X networks, introduces the considered use cases, and gives an overview of the three standardized options applying IPv6 in vehicular environments: IEEE WAVE provides networking services to applications in vehicular networks through IPv6, IPv6 over 802.11-OCB can be implemented in Wi-Fi-based ad hoc vehicular networks for both V2V and V2I, and the Geo Networking IPv6 adaption sub-layer (GN6ASL) for IPv6 support in the ETSI ITS protocol family. The paper also highlights non-standardized solutions and available techniques designed for IPv6-based V2X infrastructures, summarizes wireless connection requirements, and mobility management needs, together with the newest research efforts aiming at the applications of IPv6 in V2X communications.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130430713","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
Pandemic COVID-19: challenge strategic decisions on building in Egypt COVID-19大流行:挑战埃及建设战略决策
Acta Technica Jaurinensis Pub Date : 2023-05-31 DOI: 10.14513/actatechjaur.00696
S. Elhadad, Z. Orbán, A. Fülöp
{"title":"Pandemic COVID-19: challenge strategic decisions on building in Egypt","authors":"S. Elhadad, Z. Orbán, A. Fülöp","doi":"10.14513/actatechjaur.00696","DOIUrl":"https://doi.org/10.14513/actatechjaur.00696","url":null,"abstract":"COVID-19 threatens the livelihood and lives of people all over the world. Presently, the disease presents a major health concern in Egypt and all over the world. Evaluating the built and physical environment is one of the solutions to reduce epidemic impact before developing its medications (as “prevention”). Epidemics have altered the usage of our built environment because of the infection fear. As a result, urbanism and architecture will never be the same after the COVID-19 epidemic. However, the current global epidemic poses significant challenges in the built environment at all levels, developing an antivirus-enabled paradigm to stop the spreading of virus or decrease the potential risks will take time. Many unanswered questions require further multidisciplinary studies. This investigation provides an overview for impact of the current COVID-19 Pandemic on the field of residential architecture and how it might change the architecture of built environment.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121450883","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 relationship between compressive strength and sonic velocity depending on moisture content in case of historical masonry 历史砌体抗压强度与声速随含水率的关系
Acta Technica Jaurinensis Pub Date : 2023-05-31 DOI: 10.14513/actatechjaur.00695
A. Dormany, Z. Orbán
{"title":"The relationship between compressive strength and sonic velocity depending on moisture content in case of historical masonry","authors":"A. Dormany, Z. Orbán","doi":"10.14513/actatechjaur.00695","DOIUrl":"https://doi.org/10.14513/actatechjaur.00695","url":null,"abstract":"Historical masonry structures made from locally available materials such as stone, brick, and mud are an integral part of our cultural identity. Moisture content is a critical environmental factor that can significantly impact the durability and strength of these structures. Moisture ingress in masonry can cause detrimental effects such as decreased strength, increased porosity, and reduced bond strength between the mortar and masonry units. Understanding this relationship is crucial for developing effective conservation strategies and maintenance decisions that can help protect these structures from moisture-related damage. This paper explores the impact of moisture content on the compressive strength of historical masonry structures and highlights the factors that can affect this relationship.","PeriodicalId":323980,"journal":{"name":"Acta Technica Jaurinensis","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133354821","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
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