Electronic Information Science Research Articles

Electromagnetic wave absorption performance and rheological behavior of rubber composites with low mass filling rate carbon nanofiber aerogel

With the development of electronic information science and technology, electromagnetic information security and electromagnetic pollution become more and more serious. Electromagnetic wave absorption (EMWA) rubber based on the absorbent of carbon with low density and good corrosion resistance is a kind of good EMWA materials for solving electromagnetic information security and electromagnetic pollution. In this article, three-dimensional network structure carbon nanofiber aerogels (3DNSCAs) are prepared by vacuum annealing of three-dimensional network structure agarose/zinc acetate obtained by freeze-drying of agarose/zinc acetate gel. The EMWA rubber composites with 2.2% (in mass) 3DNSCAs have almost the same density as silicone rubber (PDMS), and the dispersity of 3DNSCAs in PDMS is studied by rheological analysis. The effective absorption bandwidth (EAB, frequency for reflection loss <–10 dB) of the 2 mm thick PDMS/C-800 is 4 GHz, and the minimum value of reflection loss (RLmin) is −52 dB with the thickness of 3.5 mm. The PDMS/C-1000 with the thickness of 3.5 mm has an EAB up to 4.8 GHz. Radar cross section (RCS) reduction of PDMS/C-800 can achieve 20 dB⋅m2 at the frequency of 6 GHz.

Collection Development Strategies for Electronic Resources in Two Selected University Libraries in KwaZulu-Natal, South Africa

Purpose: Electronic resources have become critical and instrumental for academic work in the technological era and, as such, useful for students and researchers. This study reports on collection development as a strategy for electronic resources. Design/methodology/approach: An interpretivist research paradigm was adopted, followed by a qualitative research approach. A case study research design was deemed appropriate for the study. The target population comprised librarians from two academic libraries in KwaZulu-Natal. The study employed purposive sampling and used semi-structured interviews to collect data from the participants. Due to Covid-19 regulations, these interviews were conducted online using Google Teams. Thematic analysis was used to analyse the data collected. Findings: The findings revealed that both universities provide different types of electronic resources to support teaching, learning, and research activities. The electronic resources provided in the two selected academic libraries included online databases, e-books, e-journals, e-references, e-magazines, and videos from the JoVE databases and packages. The findings showed that these academic libraries encounter major challenges with limited library budgets and high subscription costs of e-resources. The study recommends that adequate funding to acquire more e-resources should be allocated, and that the consortium must become more involved in the process of purchasing electronic resources so that cost could be shared. Research limitations/implications: This study focused on librarians in two institutions, excluding the management and executive management of these institutions, which are planners and decision-makers influencing finance and some processes. Practical implications: Electronic resources subscribed to by academic libraries play an important part in addressing different user information needs. With the emergence of information and communication technology (ICT), academic libraries strive to remain relevant in their collection development through the provision of electronic resources. The research offered librarians additional collection development strategies through electronic resources that they can adopt in order to provide sound collections to their users, regardless of financial constraints. Originality/value: The study investigated enhancing collection development through electronic resources as a strategy in the selected academic libraries in KwaZulu-Natal, South Africa. It may serve as a valuable resource for academic librarians in carrying out the effective collection development of electronic resources, as currently, world development is driven by technology. It also adds to the body of knowledge in the field of electronic resources, academic librarianship, and information science.

Design of Spectrum Processing Chiplet Based on FFT Algorithm

With the rapid development of electronic information and computer science, the fast Fourier transform (FFT) has played an increasingly important role in digital signal processing (DSP). This paper presented a spectrum processing chiplet design method to solve slow speed, low precision, and low resource utilization in spectrum processing of general-purpose spectrum chips and field programmable gate array (FPGA). To realize signal processing, the Radix-2 4096-point FFT algorithm with pipeline structure is used to process spectral signals extracted from the time domain. To reduce the harm caused by spectrum leakage, a windowing module is added to optimize the input data, and the clock gating unit (CGU) is used to perform low-power management on the entire clock reset. The result shows the chiplet takes 0.368 ms to complete a 4096-point frequency sweep under a clock frequency of 61.44 MHz. The chiplet significantly improves speed and accuracy in spectrum processing, which has great application potential in wireless communication.

Recognition, Processing, and Detection of Sensor Fault Signal Based on Genetic Algorithm

With the development of electronic information science and network transmission technology, signal processing technology is widely used in various fields. The processing of sensor coarse signal is the key of signal processing technology, in order to study the signal detection and transmission function of the sensor. A genetic algorithm-based sensor fault signal identification, processing, and detection are proposed, and three common signal analysis and processing methods are summarized. The methods of optimal arrangement of sensors are as follows: effective independent algorithm, genetic algorithm, simulated annealing algorithm, and ant colony algorithm principle are studied in detail; signal analysis methods are as follows: fast Fourier transform, wavelet transform, and HHT transform are studied in detail. In the experimental system of the sensor’s coarse signal processing mode, the optimal arrangement of the measurement points of the acceleration sensor in this experiment is directly related to the information collection effect of the monitoring system. Combined with numerical simulation and engineering cases, the soft computing (genetic algorithm, simulated annealing algorithm, and ant colony algorithm) is analyzed in detail, out of the MATLAB program for soft computing. Taking four typical functions as the numerical experimental platform, the three algorithms are used for comparative experimental analysis, and their optimized performance and application range are analyzed. Finally, the practical application performance of soft computing is tested by the practical application problem of optimal path optimization of measuring points. When there are only 10 measuring points, all three algorithms can quickly converge to the global optimal solution, but when there are 100 measuring points, only approximate solutions can be obtained.

"OBE" Concept for New Training Mode of Electronic Information Science and Technology Professionals under Big Data Analysis.

As an educational concept based on learning output, OBE (Outcome-Based Education) is student-centered and emphasizes students' personal progress and learning achievement. Based on BD (big data) analysis, this paper proposes a new talent training mode for the electronic information science and technology specialty. This model employs BD analysis technology to examine the correlation index between social demand and talent cultivation, based on the employment situation of students in the country in previous years. The teaching reform was carried out under the OBE concept, and a new training scheme was formed. Training objectives, graduation requirements, curriculum system, and continuous improvement mechanism were all determined. This paper proposes an algorithm for determining the degree of similarity between the knowledge required by the organization and the knowledge held by its employees. The person with the highest similarity is identified as the training candidate by the algorithm, and the training candidate is then trained according to the knowledge that the organization requires. Talent training in the field of electronic information science and technology has yielded positive results.

Research on Teaching Reform of C Programming Language Course for Deep Integration of Professional Fields

Advanced Language Program (C language) is a required basic course of computer technology for science and engineering majors at Sichuan University of Science and Engineering. In order to improve students’ abilities of computational thinking, mathematical modeling, algorithm design, problem analysis and solution, this paper puts forward a C language curriculum reform oriented to the deep integration of the professional fields of the lecturers in view of the current C language teaching and experiment without considering the professional characteristics of the lecturers. Taking electronic information science as an example, the C language course plan related to the subsequent courses is designed according to the major characteristics of the students in class 2020. Compared with the final scores of 2018 and 2019, it can be found that the program is conducive to improving students’ interest in learning, deepening their understanding of the theoretical knowledge of the course, improving their ability of programming practice and deep integration with the professional field.

Preface

The 2021 6th International Conference on Electronic Technology and Information Science (ICETIS 2021) was held on January 22-24, 2021 as a virtual conference due to the growing concerns over the coronavirus outbreak (COVID-19), and in order to protect the well-being of our attendees, partners, and staff as our number one priority. ICETIS 2021 is to bring together innovative academics and industrial experts in the field of electronic technology and information science to a common forum. The primary goal of the conference is to promote research and developmental activities in electronic technology and information science and another goal is to promote scientific information interchange between researchers, developers, engineers, students, and practitioners working all around the world.This scientific event brings together more than 160 national and international researchers in electronic technology and information science. On top of the local participants coming from different national universities, international participants are also registered from different countries, namely UK, USA, Malaysia. During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and online Q&A discussion. In the first part, some scholars, whose submissions were selected as the excellent papers, were given about 5-10 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-45 minutes to hold their speeches.In the second part, we invited three professors as our keynote speakers. Assoc. Prof. Mahmoud AlShawabkeh, from Guangxi Normal University for Nationalities, China. His research area focuses on Computer Network Security and Information Systems. And then we had Assoc. Prof. Lei Zhang from Henan University, China. He devoted in Machine learning, Big data, Information security and other related research area. Assoc. Prof. Zhihan Lv, from Qingdao University, China. His research mainly focuses on Augmented Reality, Virtual Reality, Geographic Information Systems, Computer Vision, Multimedia, 3D Visualization, 3D Graphics, Serious Game, HCI, Bigdata, Internet of Things. Their insightful speeches had triggered heated discussion in the third session of the conference. Every participant praised this conference for disseminating useful and insightful knowledge.The proceedings are a compilation of the accepted papers and represent an interesting outcome of the conference. Topics include but are not limited to the following areas: Electronics Engineering, Mechanical Engineering, Computer Engineering and more related topics. All the papers have been through rigorous review and process to meet the requirements of International publication standard.We would like to acknowledge all of those who supported ICETIS 2021. The help and contribution of each individual and institution was instrumental in the success of the conference. In particular, we would like to thank the organizing committee for its valuable inputs in shaping the conference program and reviewing the submitted papers.The Committee of ICETIS 2021List of Committee members are available in this pdf.

Propagation dynamics of vortex electromagnetic waves in dispersive left-handed materials

The interactions between electromagnetic (EM) waves and Metamaterials have always been considered as research focus of electronic information science and technology. In this work, we focus on the dynamical properties of EM waves with vortex structure propagating in left-handed materials (LHMs) exhibiting dispersive characteristics. The analytical expressions for the electric and magnetic field components of vortex EM waves without the limitation of the paraxial condition are derived using the spectral domain method. A canonical approach is utilized to explore the dynamical properties, including the energy, momentum, spin and orbital angular momentum, of vortex EM waves in dispersive LHMs. Numerical results show that the orientation of transverse energy flow in the LHM is reversed compared to that in the free space. The waves with higher angular frequency are beneficial to improve the dynamical characteristics. Furthermore, the topological charge and polarization state have a significant effect on the dynamical quantities. This study is expected to provide useful insights into the interactions of vortex EM waves with metamaterials, and their further applications.

Research on the New Mode of Training Talents of Electronic Information Science and Technology Based on Information Technology

In response to the new round of industrial and technological revolution, the state has put forward the educational concept of "new engineering" in the field of higher education. Most of the applied undergraduate engineering talents training are applied to the training mode of the ordinary universities before, which leads to the unclear training objectives, obvious characteristics and the low quality of graduates. This paper mainly introduces the reform method of the training mode of Engineering Specialty in Applied Undergraduate Colleges under the background of new engineering, taking the reform of the training mode of electronic information science and technology as an example.

Application and prospects of hyperspectral imaging and deep learning in traditional Chinese medicine in context of AI and industry 4.0

In the 21 st century, the rise of artificial intelligence(AI) marks the arrival of the intelligence era or the era of Industry 4.0. In addition to the rapid development of computer and electronic information science, machine learning, as the core intelligence of AI, provides a new methodology for the modernization of traditional Chinese medicine. The algorithms of machine learning include support vector machine(SVM), extreme learning machine(ELM), convolutional neural network(CNN), and recurrent neural network(RNN). The combination of machine learning algorithms and hyperspectral imaging analysis could be used for the identification of fake and inferior herbs, the origin of herbs and the content determination of bioactive ingredients in herbs, which has largely solved the difficulty in strictly controlling the quality of traditional Chinese medicine. The integration of high spectral imaging(HSI) and deep lear-ning will make the predicted results more reliable and suitable for analysis of great amounts of samples. This paper summarizes the application of hyperspectral imaging technology(HSI) and machine learning algorithms in the field of traditional Chinese medicine in recent years, focuses on the principles of hyperspectral imaging technology, preprocessing methods and deep learning algorithms, and gives the prospects of evolution of hyperspectral imaging technology in the field.

电子信息科学与技术(医学信息方向)专业的跨学科协同教学改革与实践

电子信息科学与技术(医学信息方向)专业的跨学科协同教学改革与实践

The historical and epistemological relations between Librarianship and Information Science in the Brazilian scientific production

Abstract This is an exploratory qualitative and bibliographic research without a chronological framework that addresses the historical and epistemological relations of Library Science and Information Science from the Brazilian scientific production in Information Science. This study addresses how and which aspects in the historical and epistemological relation occur between Information Science and Librarianship in Brazilian scientific production. The general objective is to identify to what extent the content of publications brings the two fields together. Specifically, the objectives were as follows: list works within the Brazilian scientific production in Information Science that deal with the history and epistemology of Librarianship and Information Science; verify which works correlate historical and epistemological aspects of librarianship with Information Science; elicit some reflections on the historical and epistemological relations from the analysis of this research. The data collection was carried out in the Journal Portal of Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Coordination for the Improvement of Higher Education Personnel) database of the Scientific Electronic Library Online, Library and Information Science Abstracts, Web of Science and Scopus. Based on the analysis of the corpus of 21 articles, the most predominant themes were the history of Librarianship, the development of Information Science, the documentation of Paul Otlet and Henri La Fontaine, and interdisciplinarity. It is important to deepen the historical and epistemological relations of Librarianship and Information Science in national scientific production since research shows a lack of theoretical depth in the studies retrieved from the corpus.

The Study of Construction of Undergraduate Workstation Based on School-enterprise Cooperation

In order to meet the high demands of today's information age, social quality of talent, improve the employment rate and the quality of university students, training students' innovative ability is imminently based on practice teaching. In this paper, the general characteristics of electronic information science and technology are presented. Besides that, the production practice, the important role of graduation practice and graduation design (thesis) and other practical teaching reform in the teaching of electronic information are discussed. Combine production technology needs of enterprises to complete production practice, graduation practice and graduation design(Thesis) and other practical teaching tasks, Establish an undergraduate workstation based on the enterprise production technology platform, training professional theoretical foundation of knowledge vision, scientific and flexible way of thinking, a good team spirit, strong engineering practice and innovation capacity in the direction of a professional with expertise in the application of research skills, engineering and technical personnel, making the professional personnel training closer to the needs of society, from radically improve graduate employability and competitiveness, quality of employment and sustainable development capacity.

Research and Practice in Training Model of Innovative Talents in Electronic Information Specialty

In this paper, concerning the current situation of electronic and information–oriented specialty, and combining the construction experiences of electronic information science and technology specialty construction in Northeast Petroleum University, we have summarized the curriculum system of innovative talents cultivation. And aiming at cultivating innovation ability of the students, we have proposed implementation scheme of practical teaching and a series of measures to guarantee the training quality of the students. Putting-forward of the problems

Research on the Sensor Coarse Signal Processing Model Based on Adaptive Genetic Algorithm

With the rapid development of electronic information science and network transmission technology, the signal processing technology has been widely applied to various fields, which is the most important component of signal detection and transmission, and the key signal processing technology for processing sensor crude signals. Based on this, the experimental system of sensor coarse signal processing model is established, and in the experimental system, the transformer can carry out signal recognition for voltage and current, the use of PC microcontroller and embedded AD converter carries out analog / digital conversion for sensor crude signal. For the amplification process of sensor coarse signal, the use of adaptive genetic algorithm carries out mathematical modeling, the realization of the signal identification, acquisition and processing functions through software programming control. Finally, the intelligent processing of sensor coarse signal is successfully completed by the experiment system, and the signal processing effect is given as well.

Interview

Dr Li Yang from the Lightwave Laboratory in the Department of Electronic Engineering and Information Science, University of Science and Technology of China talks about the research behind her Letter ‘Birefringence in fibres with multi-lobe stress region’ on page 1294.

Reformations and teaching practices of the circuit principle course in an undergraduate curriculum

This paper presents reformations and teaching practices of circuit principle courses for Physics, Computer Science and Technology, Electronic Information Science and Technology, Communication Engineering, and Electrical Engineering and Automation undergraduate programs at Ningbo University to meet the current development of the information science and technology. The circuit principle courses are divided into two parts, named as Circuit Principle (A) and Circuit Principle (B). The Circuit Principle (A) is used for all undergraduate students of Physics, Computer Science and Technology, Electronic Information Science and Technology, Communication Engineering, and Electrical Engineering and Automation specialties, while the Circuit Principle (B) is only used for Electronic Information Science and Technology, Communication Engineering, and Electrical Engineering and Automation specialties because of their demands for further circuit theory and skills. The teaching content, teaching methods, and experiment contents of the Circuit Principle (A) and Circuit Principle (B) courses are explored and developed at Ningbo University according to demands of these undergraduate programs. The reformations and teaching practice results have some value for other similar universities and colleges.

The Burlington Agenda: Research Issues in Intellectual Access to Electronically Published Historical Documents

As increasing numbers of primary historical documents appear on the World Wide Web, publishers of those documents will need ways to provide intellectual access to the contents. At a three-day meeting in Burlington, Vermont experts in experimental electronic publishing, library and information science research, documentary editing, and computer science research identified (1) the need for user studies to determine the needs and reactions of the audience(s), (2) the need to assess implications for change in publication management, and (3) the need to compare empirically various technological approaches to access to information as three areas of research that can contribute to our understanding of how to construct and improve intellectual access to historical documents on the Web.

Large scale pixel detectors for DELPHI at LEP200 and ATLAS at LHC

Pixel detectors are proposed for the upgrade of the silicon tracker of the DELPHI experiment (CERN) to be installed for the beginning of LEP200 in 1995. Four layers of 400 000 pixels equipped with on chip sparse readout electronics are proposed to cover the very forward region. The ATLAS experiment proposed for the LHC (CERN) includes a silicon detector for tracking and vertexing (SITV) with the two first layers in pixels. The challenge is to build 1.3 m 2 of pixel detectors equipped with time stamping (at 25 ns) and sparse readout, with the capability to be still operational after an irradiation of 25 Mrad.