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Preliminary Study of Cesium Immobilization in a Geopolymer Matrix 地聚合物基质中铯固定化的初步研究
Hungarian Journal of Industrial Chemistry Pub Date : 2023-05-26 DOI: 10.33927/hjic-2023-02
Erika Kocsis, Máté Fehérvári, Máté Novák, Edit Tóth-Bodrogi, Tibor Kovács
{"title":"Preliminary Study of Cesium Immobilization in a Geopolymer Matrix","authors":"Erika Kocsis, Máté Fehérvári, Máté Novák, Edit Tóth-Bodrogi, Tibor Kovács","doi":"10.33927/hjic-2023-02","DOIUrl":"https://doi.org/10.33927/hjic-2023-02","url":null,"abstract":"Geopolymers are modern synthetic materials that have many beneficial characteristics, e.g. excellent mechanical properties, fire- and heat-resistance, minimal shrinkage and can be molded into shape. Given their aforementioned characteristics, geopolymers could be applicable as conditioning materials, e.g. to handle hazardous waste and radioactive materials. However, their long-term applicability needs to be investigated.The aim of this study is to investigate the mobility of Cs-137 radionuclides in embedding materials. Different geopolymeric matrices - namely kaolinite, bentonite, zeolites and red mud - were tested. The leach test was performed according to the ASTM C1308-08(2017) standard and the activity concentration of Cs-137 isotopes was measured by gamma spectrometry using a high-purity germanium (HPGe) semiconductor detector. According to our preliminary results, the matrices that resulted in the most significant immobilization effect were those in which bentonite, cement, fly ash and 8M NaOH were used, releasing approximately 10% of the cesium.","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134922093","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
Torque Transmission Time-Constant Examination of a Disk-Type Magnetorheological Clutch 盘式磁流变离合器转矩传递时间常数的研究
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-12
S. Mester, I. Szalai
{"title":"Torque Transmission Time-Constant Examination of a Disk-Type Magnetorheological Clutch","authors":"S. Mester, I. Szalai","doi":"10.33927/hjic-2020-12","DOIUrl":"https://doi.org/10.33927/hjic-2020-12","url":null,"abstract":"","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85696640","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 the planning and manufacturing processes of electromagnetic energy harvesting equipment 优化电磁能量采集设备的规划和制造工艺
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-13
L. Móricz, I. Szalai
{"title":"Optimizing the planning and manufacturing processes of electromagnetic energy harvesting equipment","authors":"L. Móricz, I. Szalai","doi":"10.33927/hjic-2020-13","DOIUrl":"https://doi.org/10.33927/hjic-2020-13","url":null,"abstract":"","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77355944","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
LIDAR-based Collision-Free Space Estimation Approach 基于激光雷达的无碰撞空间估计方法
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-05
Miklós Unger, Ernő Horváth, Csaba Hajdu
{"title":"LIDAR-based Collision-Free Space Estimation Approach","authors":"Miklós Unger, Ernő Horváth, Csaba Hajdu","doi":"10.33927/hjic-2020-05","DOIUrl":"https://doi.org/10.33927/hjic-2020-05","url":null,"abstract":"As autonomous technologies flourish within the vehicle industry, an increasing number of academic autonomous competitions are appearing. One of them is the Shell Eco-marathon Autonomous Urban Concept competition (SEM AUC) which seeks to provide hands-on experience for the academic community to design, build and test their own driverless vehicles within a realistic infrastructure. The team at our university participates in this competition and our concept is to rely on simple and robust algorithms. This paper presents a simple collision-free space estimation algorithm for the LiDAR sensor.","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88810710","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
Geospatial Data Manipulation Supporting the Implementation of Driving Simulation Environments 支持驾驶模拟环境实现的地理空间数据处理
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-17
F. Speiser, K. Enisz, D. Fodor
{"title":"Geospatial Data Manipulation Supporting the Implementation of Driving Simulation Environments","authors":"F. Speiser, K. Enisz, D. Fodor","doi":"10.33927/hjic-2020-17","DOIUrl":"https://doi.org/10.33927/hjic-2020-17","url":null,"abstract":"","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88323499","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
Localization accuracy improvement of autonomous vehicles using sensor fusion and extended Kalman filter 基于传感器融合和扩展卡尔曼滤波的自动驾驶汽车定位精度提高
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-16
I. Szalay, K. Enisz, H. Medve, D. Fodor
{"title":"Localization accuracy improvement of autonomous vehicles using sensor fusion and extended Kalman filter","authors":"I. Szalay, K. Enisz, H. Medve, D. Fodor","doi":"10.33927/hjic-2020-16","DOIUrl":"https://doi.org/10.33927/hjic-2020-16","url":null,"abstract":"","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75674556","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
Modeling of Autonomous EV Vector-Controlled Power Conversion System for Battery Management System Design 面向电池管理系统设计的自主电动汽车矢量控制功率转换系统建模
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-08
G. Kohlrusz, D. Fodor
{"title":"Modeling of Autonomous EV Vector-Controlled Power Conversion System for Battery Management System Design","authors":"G. Kohlrusz, D. Fodor","doi":"10.33927/hjic-2020-08","DOIUrl":"https://doi.org/10.33927/hjic-2020-08","url":null,"abstract":"","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80921314","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 consumption factors, basics of precision and on-board diagnostic measurements 燃料消耗因素的检查，精度和船上诊断测量的基础
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-14
Tibor Busznyák, I. Lakatos
{"title":"Examination of fuel consumption factors, basics of precision and on-board diagnostic measurements","authors":"Tibor Busznyák, I. Lakatos","doi":"10.33927/hjic-2020-14","DOIUrl":"https://doi.org/10.33927/hjic-2020-14","url":null,"abstract":"","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75200914","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
Improving the efficiency of neural networks with virtual training data 利用虚拟训练数据提高神经网络的效率
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-02
János Hollósi, Rudolf Krecht, Norbert Markó, Á. Ballagi
{"title":"Improving the efficiency of neural networks with virtual training data","authors":"János Hollósi, Rudolf Krecht, Norbert Markó, Á. Ballagi","doi":"10.33927/hjic-2020-02","DOIUrl":"https://doi.org/10.33927/hjic-2020-02","url":null,"abstract":"At Szechenyi Istvan University, an autonomous racing car for the Shell Eco-marathon is being developed. One of the main tasks is to create a neural network which segments the road surface, protective barriers and other components of the racing track. The difficulty with this task is that no suitable dataset for special objects, e.g. protective barriers, exists. Only a dataset limited in terms of its size is available, therefore, computer-generated virtual images from a virtual city environment are used to expand this dataset. In this work, the effect of computer-generated virtual images on the efficiency of different neural network architectures is examined. In the training process, real images and computer-generated virtual images are mixed in several ways. Subsequently, three different neural network architectures for road surfaces and the detection of protective barriers are trained. Past experiences determine how to mix datasets and how they can improve efficiency.","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76455074","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
Brownian dynamics simulation of chain formation in electrorheological fluids 电流变流体中链形成的布朗动力学模拟
Hungarian Journal of Industrial Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-15
Dávid Fertig, D. Boda, I. Szalai
{"title":"Brownian dynamics simulation of chain formation in electrorheological fluids","authors":"Dávid Fertig, D. Boda, I. Szalai","doi":"10.33927/hjic-2020-15","DOIUrl":"https://doi.org/10.33927/hjic-2020-15","url":null,"abstract":"Brownian dynamics (BD) simulations based on a novel Langevin integrator algorithm are used to simulate the dynamics of chain formation in electrorheological (ER) fluids that are non-conducting solid particles suspended in a liquid that has a dielectric constant different from that of the ER particles. An external electric field induces polarization charge distributions on the spheres' surfaces that can be modeled as point dipoles in the centers of the spheres. The interaction of these aligned dipoles leads to formation of chains and other aggregates in the ER fluid. In this work, we introduce our methodology and report results for various quantities characterizing the structure of the ER system as obtained with BD simulations. These quantities include the potential energy, diffusion constant, average chain length, chain length distributions, and pair correlation functions. Their behavior as a function of time is presented as the electric field is switched on. The properties of the ER fluid change considerably making this system a potential basic material of many applications.","PeriodicalId":13010,"journal":{"name":"Hungarian Journal of Industrial Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81744320","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
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