• 제목/요약/키워드: Science & Technology Researchers

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Detection and Recognition of Vehicle License Plates using Deep Learning in Video Surveillance

  • Farooq, Muhammad Umer;Ahmed, Saad;Latif, Mustafa;Jawaid, Danish;Khan, Muhammad Zofeen;Khan, Yahya
    • International Journal of Computer Science & Network Security
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    • 제22권11호
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    • pp.121-126
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    • 2022
  • The number of vehicles has increased exponentially over the past 20 years due to technological advancements. It is becoming almost impossible to manually control and manage the traffic in a city like Karachi. Without license plate recognition, traffic management is impossible. The Framework for License Plate Detection & Recognition to overcome these issues is proposed. License Plate Detection & Recognition is primarily performed in two steps. The first step is to accurately detect the license plate in the given image, and the second step is to successfully read and recognize each character of that license plate. Some of the most common algorithms used in the past are based on colour, texture, edge-detection and template matching. Nowadays, many researchers are proposing methods based on deep learning. This research proposes a framework for License Plate Detection & Recognition using a custom YOLOv5 Object Detector, image segmentation techniques, and Tesseract's optical character recognition OCR. The accuracy of this framework is 0.89.

Route Selection in a Dynamic Multi-Agent Multilayer Electronic Supply Network

  • Mahdavi, Iraj;Fazlollahtabar, Hamed;Shafieian, S. Hosna;Mahdavi-Amiri, Nezam
    • Journal of Information Technology Applications and Management
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    • 제17권1호
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    • pp.141-155
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    • 2010
  • We develop an intelligent information system in a multilayer electronic supply chain network. Using the internet for supply chain management (SCM) is a key interest for contemporary managers and researchers. It has been realized that the internet can facilitate SCM by making real time information available and enabling collaboration between trading partners. Here, we propose a multi-agent system to analyze the performance of the elements of a supply network based on the attributes of the information flow. Each layer consists of elements which are differentiated by their performance throughout the supply network. The proposed agents measure and record the performance flow of elements considering their web interactions for a dynamic route selection. A dynamic programming approach is applied to determine the optimal route for a customer in the end-user layer.

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초등 예비교사의 VR/AR 활용 과학 수업 계획 과정에서 나타나는 TPACK 특징 -인식적 네트워크 분석을 중심으로- (Characteristics of Pre-service Elementary Teachers' TPACK in Science Lesson Planning Using VR/AR Contents: Focusing on Epistemic Network Analysis)

  • 차현정;가석현;윤혜경
    • 한국과학교육학회지
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    • 제43권3호
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    • pp.225-236
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    • 2023
  • 이 연구에서는 인식적 네트워크 분석(ENA)을 통해 초등 예비교사의 VR/AR 콘텐츠 활용 과학 수업 계획 과정에서 나타나는 TPACK의 특징을 알아보고자 했다. 연구자들은 기존의 TPACK 프레임워크에 기초하여 7개의 TPACK 코딩 요소를 귀납적으로 추출하였다. 그리고 초등 예비교사들이 과학 수업을 계획하며 나누는 담화를 TPACK 요소에 따라 코딩하고 이를 ENA Web Tool로 분석하였다. 두 모둠의 담화를 분석하고 비교하였는데 연구자들이 질적으로 분석한 두 모둠의 담화의 차이는 ENA 그래프를 통해 명확하게 드러났다. 이러한 연구 결과를 바탕으로 연구자들은 ENA 방법이 기존 TPACK 연구와 달리 테크놀로지 지식(TK), 내용 지식(CK), 교수 지식(PK)의 복합적 상호작용을 분석할 수 있는 유용한 연구 방법임을 주장하였다. 그리고 두 모둠의 담화에서 나타나는 특징을 통해 예비교사의 TPACK 역량 함양을 위한 시사점을 논의하였다.

국방연구개발 연구원들의 정보이용 행태에 관한 연구 (A Study on the User Behavior of Korean Defense R&D Researchers)

  • 송종호;오동근
    • 정보관리연구
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    • 제39권2호
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    • pp.1-25
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    • 2008
  • 본 연구는 A연구소에서 국방연구개발 및 시험평가 업무에 종사하는 연구원들의 수행업무나 직급 등의 개인적 배경에 따른 정보이용 행태에 대한 차이분석을 통해 정보서비스를 개선하고자 실시되었다. 본 연구를 위해 문헌연구와 더불어 설문조사를 실시하였으며, 수집된 자료는 SPSS 12.0을 이용하여 빈도 분석과 분산분석을 실시하였다. 분석결과 연구원들의 정보수집 빈도는 연구/업무 수행 중 발생한 현안 문제해결을 위한 정보수집이 가장 많고, 정보수집시 정보의 정확성을 가장 중요하게 생각하는 것으로 나타났다. 또한 정보수집시 큰 어려움은 느끼지 않았지만 일부 연구원의 경우 정보검색 및 정보자료 소재파악의 어려움을 호소하였다. 이용중인 정보자료의 형태별 비율은 전자자료(67%), 인쇄자료(26%), 비 도서자료(6%) 순이었다. 정보원별 이용빈도 및 의존도는 인터넷, 연구소내 전자도서관, 연구소내 Web자료의 순으로 높았고, 만족도는 인터넷, 연구소내 전자도서관, 도서관의 순으로 높게 나타났다.

더 나은 사회를 위한 과학을 향하여: 사회에 책임지는 연구혁신(RRI)의 현황과 함의 (Toward Science for Better Society: The Present and Implications of Responsible Research and Innovation (RRI))

  • 박희제;성지은
    • 과학기술학연구
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    • 제15권2호
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    • pp.99-133
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    • 2015
  • 사회에 책임지는 연구와 혁신(RRI)은 과학기술을 단지 경제성장의 도구를 넘어 더 나은 사회(better society)를 위한 도구로 자리매김하기 위한 이론적 방법론적 프레임워크로 한창 논의중인 개념이다. RRI는 연구와 혁신에 수반되는 책임의 범위를 연구과정뿐 아니라 연구의 목적과 동기 나아가 연구결과에 대한 책임으로까지 확장한다. 또 이러한 책임을 구체적으로 실현하기 위한 방법론적 프레임워크로 예견, 성찰, 숙의/포괄성, 책임이라는 네 가지의 상호 연관된 개념을 제시하고 있다. RRI는 단지 이론적 논의에 머무는 것이 아니라 이미 다양한 수준에서 실천되고 있다. 이에 이 연구는 STIR와 SPICE라는 두 연구프로젝트와 영국의 EPSRC, 네덜란드 MVI, 한국의 사회문제 해결형 연구개발사업과 같은 사례를 통해 RRI가 어떻게 기존의 혁신정책 및 연구개발사업을 성찰적으로 반성하고 새로운 대안을 제시하는 방향타 역할을 하고 있는지를 논의한다.

Effect of Noble Metals on Hydrogen Sensing Properties of Metal Oxide-based Gas Sensors

  • Mirzaei, Ali;Bang, Jae Hoon;Kim, Sang Sub;Kim, Hyoun Woo
    • 센서학회지
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    • 제29권6호
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    • pp.365-368
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    • 2020
  • As a green and abundant source of energy, H2 has attracted the attention of researchers for use in different applications. Nevertheless, it is highly flammable, and because of its significantly small size, extreme attention is needed to detect its leakage. In this review, we discuss different effects of noble metals on the H2 gas response and performance of metal oxide-based gas sensors. In this regard, we discuss the effects of noble metals, in combination with metal oxides, on H2 gas detection. The catalytic activity towards H2 gas and the formation of heterojunctions with metal oxides are the main contributions of noble metals to the sensing improvement of H2 gas sensors. Furthermore, in the special case of Pd and somewhat Pt, the formation of PdHx and PtHx also affects the H2 sensing performance. This review paper provides useful information for researchers working in the field of H2 gas detection.

Incorporation of Media in the Activities of Scientific Library of Higher Education Institution

  • Horban, Yurii;Berezhna, Oksana;Bohush, Iryna;Doroshenko, Yevhenii;Kovbel, Viktoriia
    • International Journal of Computer Science & Network Security
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    • 제22권4호
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    • pp.59-66
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    • 2022
  • Students can successfully connect with one another thanks to the introduction of Web 2.0 and the tools and technology linked with it. The fact that rising digital tools are systematically influencing the education system is not a secret. The purpose of the research article efficiently evaluates the influence of incorporation of media in the activities of the scientific library of the higher education institution. The research Methodology is the Concepts, techniques, and procedures to effectively inculcate primary and secondary data to conduct the research effortlessly. It's worth noting that in this case, quantitative primary research was provided in the form of a survey. The researchers have proposed a survey in order to successfully instil a comprehensive view on the "incorporation of media in the operations of the scientific library of higher education institutions." As a result, fifty-one higher education institution principals were asked to attend this session. This is necessary to understand that they are both well-educated and cognizant of the impact of technology innovation on schooling. As a result, the researchers were able to gain a comprehensive view of this situation thanks to this survey. The results effectively showed that most of the participants believe that social media plays a vital role in shaping up higher education and at the same time they believe that the libraries of famous educational institutions must adapt as per the new educational trend so that teachers and students both can tap into its benefit.The practical significance of the result is manoeuvred by the efficient survey analysis and at the same time, peer-reviewed journals have been employed to put forward authentic information. Therefore, efficient insight regarding this topic has been gathered by the researchers.

Mapping Publication Pattern in African Journal of Library, Archives and Information Science, 2009-2018: An Informetric Study

  • Amusan, Blessing Babawale;Adeyoyin, Samuel Olu
    • International Journal of Knowledge Content Development & Technology
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    • 제12권1호
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    • pp.17-34
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    • 2022
  • This informetrics study was conducted to find out the distribution of articles and authors that published in African Journal of Library, Archives and Information Studies [AJLAIS]) from 2009 to 2018; considering the year-wise growth of research articles; authorship pattern and collaboration ratio; subject and geographical distributions of authors; and authors' productivity level. A descriptive informetrics research design was adopted. Quota sampling technique was used to select all the articles published within the ten-year period. Data collected through a self-designed checklist was analyzed using frequency count and percentage. The findings revealed that 141 articles, contributed by 266 authors were published by AJLAIS during the period. An annual average growth of 1.20% was recorded. Overall year-wise authorship pattern revealed that majority of articles (62.41%) published in AJLAIS were multiple authored. Also, articles on Informetrics and ICT dominated the journal. Some subject areas not covered were identified such as: indexing and serial collections management. Average collaborative index across the 10-year period for the journal was 0.62. South Africa and Nigeria were the two major prolific contributors to AJLAIS, just as evidence-based research papers of survey type (65.25%) were the most common to the journal. There should be increased numbers of articles in each edition over the coming years, and awareness should be created by the publishers to familiarize the researchers with the publishing requirements of the journal. Also, LIS researchers should concentrate more on areas usually left untouched by previous studies. The study is original as no other similar study was found on publication pattern of articles in AJLAIS covering a ten year period of 2009-2018. The findings of the study will also serve as a feedback mechanism for the Publisher of the Journal and LIS researchers on how to improve the journal and LIS research in general.

학회 학술정보시스템 구축에 관한 연구 (A Study on Building Society Research Information System)

  • 조현양;최선희
    • 한국도서관정보학회지
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    • 제30권3호
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    • pp.405-426
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    • 1999
  • Academic societies in the field of science and technology are major producers of domestic research information. These information are very important sources to researchers, students and so on. KORDIC built an integrated information system which facilitates the progress of building databases and promotes users easy access to databases. In order to build efficient society research information system, we investigated former cases and analyzed requirement of each society. We identified principal information sources and built an integrated information service system using internet homepage and information retrieval system(KRISTAL-II). In the future we will expand participating societies and focus on text-based information.

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Composition, Structure, and Bioactive Components in Milk Fat Globule Membrane

  • Ahn, Yu-Jin;Ganesan, Palanivel;Kwak, Hae-Soo
    • 한국축산식품학회지
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    • 제31권1호
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    • pp.1-8
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    • 2011
  • A unique biophysical membrane which surrounds the milk fat globules is called the milk fat globule membrane (MFGM). Various researches were studied about origin, composition, structure and bioactive components of MFGM. Bioactive protein components of MFGM play an important beneficiary function such as defense mechanism in new born. Among the bioactive lipid components from MFGM phospholipids showed health enhancing functions. The phospholipids also help in the production of certain dairy product from deterioration. MFGM phospholipids also showed antioxidant activity in some dairy products such as butter and ghee produced from milk of buffalo. Based on the beneficial effects, researchers developed MFGM as functional ingredients in various food products. This current review focuses on health enhancing function of MFGM and its components in various dairy products.