• Title/Summary/Keyword: Scientific and Technological Development

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Identification of Research Areas and Evolution of 2D Materials by the Keyword Mapping Methodology (키워드 매핑 기반 2차원 물질 연구 영역 탐지와 발전 과정 분석)

  • Ahn, Sejung;Lee, June Young
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.31 no.1
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    • pp.11-18
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    • 2018
  • Two-dimensional (2D) materials such as transition metal dichalcogenides have attracted tremendous scientific interests owing to their potential of solving the zero band-gap issue of graphene. In this work, the research areas and technology evolutionary dynamics of the 2D materials were identified using the scientometric method focusing on keyword mapping and clustering. The time-series analysis showed that the technological progress of 2D material is in the early growth period. The overlay mapping analysis were carried out to investigate the technology evolution of 2D materials with time. The strategic diagram of co-word analysis classifying the topological positions of keyword was derived to support the analysis results. It is conjectured that extensive research will be conducted widely on the application of 2D materials not only in electronic and optoelectronic devices, but also in various other fields such as biomedical applications, and that their development will be more rapid based on accumulated results of extant graphene research.

The Study of Semicomical Approaching Method in Advertising Expression Technique - Focus on Korea TV Advertisements - (광고표현기법에서의 기호학적 접근방식 연구 - 국내 TV 광고 중심으로 -)

  • Kim Hyun-Jo
    • The Journal of the Korea Contents Association
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    • v.6 no.6
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    • pp.125-135
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    • 2006
  • A study of advertising semiotics is very important area based on the whole area of Film Industry and the study of semiotics has been continuously studied in the TV advertising field. If we only insist on the existing research area and expression techniques without considering new expression techniques resulted in consuming class and technological development, the scientific approach and analysis of advertising semiotics should be confronted by the limitation. so the purpose of this thesis is to analyze semicomical approaching method and analysis in TV advertising field through the meaning of advertisement and the technique of TV advertisements and show the necessity of study and production for the effective approach in both sides of commerce and art.

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Preparation of Novel Magnesium Precursors and MgO Thin Films Growth by Atomic Layer Deposition (ALD)

  • Kim, Hyo-Suk;park, Bo Keun;Kim, Chang Gyoun;Son, Seung Uk;Chung, Taek-Mo
    • Proceedings of the Korean Vacuum Society Conference
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    • 2014.02a
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    • pp.364.2-364.2
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    • 2014
  • Magnesium oxide (MgO) thin films have attracted great scientific and technological interest in recent decades. Because of its distinguished properties such as a wide band gap (7.2 eV), a low dielectric constant (9.8), a low refractive index, an excellent chemical, and thermal stability (melting point=$2900^{\circ}C$), it is widely used as inorganic material in diverse areas such as fire resistant construction materials, optical materials, protective layers in plasma display panels, buffer layers of multilayer electronic/photonic devices, and perovskite ferroelectric thin films. Precursor used in the ALD requires volatility, stability, and low deposition temperature. Precursors using a heteroleptic ligands with different reactivity have advantage of selective reaction of the heteroleptic ligands on substrate during ALD process. In this study, we have synethesized new heteroleptic magnesium precursors ${\beta}$-diketonate and aminoalkoxide which have been widely used for the development of precursor because of the excellent volatility, chelating effects by increasing the coordination number of the metal, and advantages to synthesize a single precursor. A newly-synthesized Mg(II) precursor was adopted for growing MgO thin films using ALD.

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Implementation of Artificial Intelligence Systems for Agri-food Supply Chains: A Bibliometric Approach

  • Javier RAMIREZ;Henry HERRERA;Osman REDONDO;Sofia SULBARAN
    • Journal of Distribution Science
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    • v.22 no.6
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    • pp.83-93
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    • 2024
  • Purpose: The present study is developed with the aim of mapping the trends in scientific production related to the implementation of artificial intelligence systems for agro-food supply chains. Research design, data and methodology: The methodological approach of the research shows a descriptive documentary process based on bibliometric techniques for mapping the main indicators of the area of knowledge through the establishment of a search equation in Scopus. Results: The research results show a total of 633 documents published between 2019 and 2023, with a great annual growth rate of 61.68%; In addition to a notable participation of countries such as India, China, the United Kingdom and the United States in the generation of new knowledge related to artificial intelligence applied to food distribution systems. Conclusions: It is concluded that the rise of new artificial intelligence technologies has shown extremely important results in the development of industries worldwide, with increasingly accelerated steps; which certainly translates into the creation of spaces and incentives in the production of research aimed at understanding these dynamics and in turn to propose new alternatives and proposals for the reduction of the large technological gaps that are present within the agro-food sector.

Review of Clinical Studies Using Oral Appliance in Korean Medicine (구강 내 장치를 이용한 한의 임상연구 고찰)

  • Ha, Won-Bae;Geum, Ji-Hye;Lee, Jung-Han
    • Journal of TMJ Balancing Medicine
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    • v.8 no.1
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    • pp.1-5
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    • 2018
  • Objectives: The purpose of this review is to analyse the trends of clinical studies using oral appliance in Korean Medicine. Methods: We reviewed Korean Medicine papers by searching Korean web databases 'Korea Traditional Knowledge Portal (KTKP)', 'Korea Medical Information Portal (OASIS)', 'Academic Research Information Service (RISS)', 'Scientific and Technological Information Integration Service (NDSL)'. We classified the papers by the year of publishment, the title of journals, the type of study and contents. Results: 1. Clinical studies using oral appliance have been increasingly published since 2011. 2. Most of the studies were published in the Journal of TMJ Balancing Medicine. 3. 33 research papers were divided in to 6 original articles, 27 case reports. But almost presented a low level of evidence. 4. In the content of the studies, oral appliance were used for various diseases such as nervous system, musculoskeletal system and visceral system. Conclusions: We expect that various studies and clinical application will be actively carried out with the development of technology related to oral appliance.

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A Study on Big Data Analysis of Related Patents in Smart Factories Using Topic Models and ChatGPT (토픽 모형과 ChatGPT를 활용한 스마트팩토리 연관 특허 빅데이터 분석에 관한 연구)

  • Sang-Gook Kim;Minyoung Yun;Taehoon Kwon;Jung Sun Lim
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.46 no.4
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    • pp.15-31
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    • 2023
  • In this study, we propose a novel approach to analyze big data related to patents in the field of smart factories, utilizing the Latent Dirichlet Allocation (LDA) topic modeling method and the generative artificial intelligence technology, ChatGPT. Our method includes extracting valuable insights from a large data-set of associated patents using LDA to identify latent topics and their corresponding patent documents. Additionally, we validate the suitability of the topics generated using generative AI technology and review the results with domain experts. We also employ the powerful big data analysis tool, KNIME, to preprocess and visualize the patent data, facilitating a better understanding of the global patent landscape and enabling a comparative analysis with the domestic patent environment. In order to explore quantitative and qualitative comparative advantages at this juncture, we have selected six indicators for conducting a quantitative analysis. Consequently, our approach allows us to explore the distinctive characteristics and investment directions of individual countries in the context of research and development and commercialization, based on a global-scale patent analysis in the field of smart factories. We anticipate that our findings, based on the analysis of global patent data in the field of smart factories, will serve as vital guidance for determining individual countries' directions in research and development investment. Furthermore, we propose a novel utilization of GhatGPT as a tool for validating the suitability of selected topics for policy makers who must choose topics across various scientific and technological domains.

Development of an Information System for Accounting for the Level of Training of Future Specialists in the Field of Information Technology

  • Alla Kapiton;Nataliia Kononets;Valeriy Zhamardiy;Lesya Petrenko;Nadiya Kravtsova;Tetiana Blahova
    • International Journal of Computer Science & Network Security
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    • v.24 no.1
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    • pp.95-106
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    • 2024
  • The article is devoted to the design and development of an information system for preserving the results of testing to verify the residual knowledge of students of the resource for training specialists in information and communication technologies. The purpose of the study is to provide a scientific justification for the problem of developing professional training of specialists in information and communication technologies in the process of using an information system to save test results to verify students' residual knowledge and to verify the effectiveness of its implementation in universities. According to the results of the experiment, it can be argued that the introduction of an information system to preserve the results of testing to test students' residual knowledge in the educational process contributes to the professional training of specialists in information and communication technologies at the universities of Ukraine. The practice of development and use of modern information technologies focused on the implementation of psychological and pedagogical goals of teaching and education is fundamentally new mediated by modern technical and technological innovations.

Innovative Approaches to Training Specialists in Higher Education Institutions in the Conditions of Distance Learning

  • Oksana, Vytrykhovska;Alina, Dmytrenko;Olena, Terenko;Iryna, Zabiiaka;Mykhailo, Stepanov;Tetyana, Koycheva;Oleksandr, Priadko
    • International Journal of Computer Science & Network Security
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    • v.22 no.12
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    • pp.116-124
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    • 2022
  • Information and communication technologies used in the social sphere are born due to the development of computer technologies. The main task of the distance learning process in higher education institutions is not to provide information, but to teach how to obtain and use it. The purpose of the article: to identify innovative approaches in the training of specialists in higher education institutions in the context of distance learning. Various innovative approaches to organizing the work of students of higher educational institutions in the context of distance learning are considered. Based on the conducted research, it is concluded that each of the approaches described by us outlines the study of the phenomenon of professional training of a specialist in the condition of distance learning. All the described approaches significantly contribute to the improvement of professional training of specialists, encourage students to self-improvement, professional development and enrich their professional competence in modern conditions. The emergence and spread of innovative technologies means not only a change in the activity itself and its inherent means and mechanisms of its implementation, but also a significant restructuring of goals, value orientations, specific knowledge, skills and abilities. Therefore, the current stage of the development of civilization, scientific and technological progress requires the emergence of such specialists who would have broad humanitarian thinking, would have good psychological training, would be able to build professional activities according to laws that take into account the relationship between economic productivity and creativity, as well as the desire of the individual for constant renewal, self-realization. Only such qualities will help you master the specifics of innovative technologies well. We see the prospects in the study of innovative approaches to training specialists in higher education institutions in the condition of distance learning in foreign countries.

Trends in the development of human stem cell-based non-animal drug testing models

  • Lee, Su-Jin;Lee, Hyang-Ae
    • The Korean Journal of Physiology and Pharmacology
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    • v.24 no.6
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    • pp.441-452
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    • 2020
  • In vivo animal models are limited in their ability to mimic the extremely complex systems of the human body, and there is increasing disquiet about the ethics of animal research. Many authorities in different geographical areas are considering implementing a ban on animal testing, including testing for cosmetics and pharmaceuticals. Therefore, there is a need for research into systems that can replicate the responses of laboratory animals and simulate environments similar to the human body in a laboratory. An in vitro two-dimensional cell culture model is widely used, because such a system is relatively inexpensive, easy to implement, and can gather considerable amounts of reference data. However, these models lack a real physiological extracellular environment. Recent advances in stem cell biology, tissue engineering, and microfabrication techniques have facilitated the development of various 3D cell culture models. These include multicellular spheroids, organoids, and organs-on-chips, each of which has its own advantages and limitations. Organoids are organ-specific cell clusters created by aggregating cells derived from pluripotent, adult, and cancer stem cells. Patient-derived organoids can be used as models of human disease in a culture dish. Biomimetic organ chips are models that replicate the physiological and mechanical functions of human organs. Many organoids and organ-on-a-chips have been developed for drug screening and testing, so competition for patents between countries is also intensifying. We analyzed the scientific and technological trends underlying these cutting-edge models, which are developed for use as non-animal models for testing safety and efficacy at the nonclinical stages of drug development.

A Study on the factors of Change in the Korean Dress and Personal Adornments (우리나라 여성복식의 변화에 미친 요인 연구 - 1945~1960년을 중심으로 -)

  • 박길순
    • The Research Journal of the Costume Culture
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    • v.1 no.1
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    • pp.33-68
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    • 1993
  • The purpose of this paper is to survey the influence of the culture change on the dress and personal adornments, and to survey the change of factors from the August 15. 1945 to 1960, in connection with the social and cultural background, applying B. Malinowski′s "Theory of Culture Change" which means an acculturation is the change′s elements of the dress and its ornaments. It is remarkable that the dress and personal adornments of Korean women after August 15, 1945 has great change from the traditional dress of the thousands years. Through the Liveration on August 15, 1945, American military government and the establishment of the Korean government, American democracy has brought many changes on Korean society. Advancement of education, an society with developed economic life, and introduction of scientific skill have influenced on the women′s way of thinking and a style of behavior and the view of value. The acculturation, the supply of mass communication, introduction of new institution and the reorganization of the old institution, the change of the economic situation, the change of the educational system, the change of the point of value, the development of scientific skill have greatly influenced on the dress and personal adornments. Modern dress and personal adornments of Korean women has the following developing procedure. The Liberation from Japan on the 15th, of August, 1945, the stationing of American Soldiers during hte Koran War, returning of the oversea′s brethern, and the mass communication have the direct and indirect contact with western civilization, and bring the occasion of development of the modern dress of Korean women. The increase of mass communication, such as radio, TV, newspaper, magazines and the frequent fashion shows showed fine design and practical western style dress to the women. This was the real beginning of the western style dress in Korea. By the increase of employment and the improvement of the economic situation, the consumption of clothing and the adornments was increased, so that a wide variety of fashions was set, and numerous kind and form of dress came in. As the increase of the number of women students, their practical and free dress life demanded western style dress. After the Liberation from Japan, the open-door policy of sex, public morals and traditional ethics became lax, and in this disordered society, indecent expose of the body was common. By the different kind of technological development, the form, fabrics, colors and patterns in clothes were much influenced and the hair style, make up, shoes and adornments were much influenced too. As shown above, the change of the dress has the same connection with that of society and culture. This shows that the dress and personal adornments represent clearly the cultural phenomenon of the society and cultural change of the society.

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