Hungarian Journal of Industry and Chemistry最新文献_第8页

Adsorption of Nickel Ions from Petroleum Wastewater onto Calcined Kaolin Clay: Isotherm, Kinetic and Thermodynamic Studies 煅烧高岭土吸附石油废水中镍离子的等温、动力学和热力学研究

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Hungarian Journal of Industry and Chemistry Pub Date : 2020-12-12 DOI: 10.33927/hjic-2020-26

A. Jock, Anietie Ndarake Okon, U. H. Offor, Festus Thomas, Edmond Okwudilichukwu Agbanaje

引用次数: 2

Vibration Generator Device Based on Industrial Vibrators 基于工业振动器的振动发生装置

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Hungarian Journal of Industry and Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-10

Péter Decsi, I. Szalai

引用次数: 0

Identification of the material properties of an 18650 Li-ion battery for improving the electrochemical model used in cell testing 18650锂离子电池材料性能的鉴定，用于改进电池测试中使用的电化学模型

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Hungarian Journal of Industry and Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-06

Bence Csomós, D. Fodor

{"title":"Identification of the material properties of an 18650 Li-ion battery for improving the electrochemical model used in cell testing","authors":"Bence Csomós, D. Fodor","doi":"10.33927/hjic-2020-06","DOIUrl":"https://doi.org/10.33927/hjic-2020-06","url":null,"abstract":"The aim of this paper is to present an application of the generalized Warburg element and Constant Phase Element (CPE) for non-Fickian diffusion modeling. These distributed elements are intended to provide a better fit of low-frequency impedance data than the standard finite-length Warburg element in the case of most batteries. In addition, the current study demonstrates the ambiguity of the finite-length Warburg element if impedance data is insufficient within the verylow-frequency impedance spectrum. In order to select the appropriate Randles circuit for non-Fickian diffusion modeling, several configurations have been investigated. Based on the best fit of impedance data, the State-of-Charge (SoC) dependency of the Randles circuit parameters has also been analyzed. This study concerns a Samsung ICR18650-26F 2600 mAh battery cell which was subjected to Electrochemical Impedance Spectroscopy (EIS) measurements between 10 mHz and 100 kHz as a function of SoC. The results were plotted and compared in the form of Nyquist plots. The Randles circuit parameters such as the resistances Rs and Rct, double-layer Cdl, leaky capacitance CPE and Warburg coefficients were estimated using ZView software. The present paper shows that CPE – and its QPE form – is a recommended choice to yield the best fit in terms of non-Fickian diffusion impedance. In addition, using CPE is a better alternative to avoid problems with initial values and multiple local solutions, which may exist in the case of the Warburg element. The resultant Randles circuit parameters and their SoC characteristics can be effectively used in further electrochemical modeling.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43858289","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

Challenges of Localization Algorithms for Autonomous Driving 自动驾驶定位算法面临的挑战

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Hungarian Journal of Industry and Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-07

H. Medve, D. Fodor

引用次数: 1

Nonlinear Magnetic Properties of Magnetic Fluids for Automotive Applications 汽车用磁流体的非线性磁性

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Hungarian Journal of Industry and Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-09

B. Horváth, I. Szalai

{"title":"Nonlinear Magnetic Properties of Magnetic Fluids for Automotive Applications","authors":"B. Horváth, I. Szalai","doi":"10.33927/hjic-2020-09","DOIUrl":"https://doi.org/10.33927/hjic-2020-09","url":null,"abstract":"The external magnetic ﬁeld required to activate a magnetic ﬂuid in an industrial application is sufﬁciently large that magnetization is no longer a linear function of the external ﬁeld strength, i.e. magnetic ﬂuids exhibit nonlinear characteristics. The aim of our research was to develop a measuring system which is capable of determining the nonlinear AC susceptibility of magnetic ﬂuids at discrete frequencies and in the presence of a high-intensity driving magnetic ﬁeld. The measurement of susceptibility is based on the determination of the change in frequency of a low-intensity ﬁeld, which is generated by an LC oscillator. The application of sinusoidal excitation to the material results in a variation in the susceptibility that modulates the frequency of the measured low-intensity ﬁeld and in the appearance of higher-order harmonics of the driving ﬁeld. The higher-order components of the nonlinear AC susceptibility are extracted from the measured response by Fourier analysis. By applying the measuring system, the nonlinear susceptibility of water-based ferroﬂuids (Ferrotec’s EMG 700) and its dependence on the magnetic ﬁeld strength were investigated.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47868726","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

XBRL utilization as an automated industry analysis 将XBRL用作自动化行业分析

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Hungarian Journal of Industry and Chemistry Pub Date : 2020-07-06 DOI: 10.33927/hjic-2020-19

A. Suta, Á. Tóth

{"title":"XBRL utilization as an automated industry analysis","authors":"A. Suta, Á. Tóth","doi":"10.33927/hjic-2020-19","DOIUrl":"https://doi.org/10.33927/hjic-2020-19","url":null,"abstract":"In the last two decades, electronic ﬁnancial reporting went through a signiﬁcant evolution, where to date, eXtensible Business Reporting Language (XBRL) has become the leading platform that is already obligatory for listed entities in the United States and was also legislated in the European Union from January 1, 2020. The primary objective of this research was to review the US-listed companies’ 2018 quarterly reports. The study generated an automated industry analysis for the automotive industry from the aspect of four main ﬁnancial item categories as an alternative to statistics-based, man-ually prepared industry analyses. Statistical tests were carried out between two industrial classiﬁcation methodologies, the securities’ industry identiﬁcation marks and the reported Standard Industrial Classiﬁcation (SIC) codes. The results showed a signiﬁcant difference between the industry classiﬁcation methodologies. Automated reporting was more pre-cise with regard to the identiﬁcation of the listed and reporting entities, however, the data ﬁelds of SIC codes within the XBRL data set provided an inaccurate classiﬁcation, which is a potential area of improvement along with additional recommendations outlined in the Conclusion.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43562061","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

Comparison of the approximation methods for time-delay systems: application to multi-agent systems 时滞系统近似方法的比较:在多智能体系统中的应用

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Hungarian Journal of Industry and Chemistry Pub Date : 2019-06-27 DOI: 10.33927/HJIC-2019-11

Áron Fehér, L. Márton

引用次数: 0

Aggregation of Heterogeneous Flexibility Resources Providing Services for System Operators and the Market Participants 异构柔性资源聚合为系统运营商和市场参与者提供服务

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Hungarian Journal of Industry and Chemistry Pub Date : 2019-06-27 DOI: 10.33927/HJIC-2019-10

I. Balázs, A. Fodor, A. Magyar

引用次数: 1

Modeling and Calculation of the Global Solar Irradiance on Slopes 斜坡上全球太阳辐照度的模拟与计算

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Hungarian Journal of Industry and Chemistry Pub Date : 2019-06-27 DOI: 10.33927/HJIC-2019-09

Roland Balint, A. Fodor, István Szalkai, Zsófia Szalkai, A. Magyar

引用次数: 4

Automated Labeling Process for Unknown Images in an open-world Scenario 开放世界场景中未知图像的自动标记过程

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Hungarian Journal of Industry and Chemistry Pub Date : 2019-06-27 DOI: 10.33927/HJIC-2019-06

Dávid Papp, G. Szűcs

{"title":"Automated Labeling Process for Unknown Images in an open-world Scenario","authors":"Dávid Papp, G. Szűcs","doi":"10.33927/HJIC-2019-06","DOIUrl":"https://doi.org/10.33927/HJIC-2019-06","url":null,"abstract":"Most of the recognition systems presume a controlled, well-defined research setting, where all possible classes that can appear during a test are known a priori. This environment is referred to as the ``closed-world'' model, while the ``open-world'' model implies that unknown classes can be incorporated into a recognition algorithm whilst being predicted. Therefore, recognition systems that operate in the real world have to deal with these unknown categories. Our objective was not only to detect data that originate from categories unseen during training, but to identify similarities between pieces of unknown data and then form new classes by automatically labeling them. Our Double Probability Model was extended by an image clustering algorithm, in which Kernel K-means was used. A new procedure, namely the Cluster Classification algorithm for the detection of unknowns and automated labeling, is proposed. These approaches facilitate the transition from open-set recognition to an open-world problem. The Fisher Vector (FV) was used for the mathematical representation of the images and then a Support Vector Machine introduced as a classifier. The measurement of similarity was based on the FV representations. Experiments were conducted on the Caltech101 and Caltech256 datasets of images and the Rand Index was evaluated over the unknown data. The results showed that our proposed Cluster Classification algorithm was able to yield almost the same Rand Index, even though the number of unknown categories increased.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43448024","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