• Title/Summary/Keyword: Trends of research

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Analysis of Secondary Battery Trends Using Topic Modeling: Focusing on Solid-State Batteries

  • Chunghyun Do;Yong Jin Kim
    • Asian Journal of Innovation and Policy
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    • v.12 no.3
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    • pp.345-362
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    • 2023
  • As the widespread adoption and proliferation of electric vehicles continue, the secondary battery market is experiencing rapid growth. However, lithium-ion batteries, which constitute a majority of secondary batteries, present high risks of fire and explosion. Solid-state batteries are thus garnering attention as the next-generation batteries since they eliminate fire hazards and significantly reduce the risk of explosions. Against this background, the study aimed to analyze research trends and provide insights by examining 2,927 domestic papers related to solid-state batteries over the past decade (2013-2022). Specifically, we used topic modeling to extract major keywords associated with solid-state batteries research and to explore the network characteristics across major topics. The changes in research on solid-state batteries were analyzed in-depth by calculating topic dominance by year. The findings provide an overview of the emerging trends in domestic solid-state battery research, and might serve as a valuable reference in shaping long-term research directions.

An analysis of domestic research trends on elderly environment planing (국내 노인주거환경계획 분야 연구의 흐름 분석 연구)

  • Lee, Yeun Sook;Lee, So Young;Kim, Mi Sun;Lee, Jung Hwa;Kwak, Yoon Jung
    • KIEAE Journal
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    • v.7 no.2
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    • pp.77-85
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    • 2007
  • Korean society expects to be changing into aged society more rapidly than any other countries due to low birthrate and increase in life expectancy. Increasing number of elderly and social problems of aging society have provoked increase in research on elderly environment. Elderly housing facilities and living conditions are significantly related to the quality of life for older persons. The purpose of this study is to systematically analyze empirical studies on elderly physical environments in Korea, find out research streaming and understand social backgrounds and to suggest future research problems. For this study, contents analysis was conducted. Articles of four academic peer reviewed journals published from 1986 to 2005 were units of analysis. Using a keyword through library database systems, the articles were systematically selected. As results, trends of research according to 4 periods were defined. Among them as major trends, expansion of the quantity, expansion to interior design features for older persons, more facility types for dependent elderly(assisted living facilities, facilities for elderly with dementia, long term care facilities) have appeared. This result showed some directions and implications on elderly facility planning and development.

AI Processor Technology Trends (인공지능 프로세서 기술 동향)

  • Kwon, Youngsu
    • Electronics and Telecommunications Trends
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    • v.33 no.5
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    • pp.121-134
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    • 2018
  • The Von Neumann based architecture of the modern computer has dominated the computing industry for the past 50 years, sparking the digital revolution and propelling us into today's information age. Recent research focus and market trends have shown significant effort toward the advancement and application of artificial intelligence technologies. Although artificial intelligence has been studied for decades since the Turing machine was first introduced, the field has recently emerged into the spotlight thanks to remarkable milestones such as AlexNet-CNN and Alpha-Go, whose neural-network based deep learning methods have achieved a ground-breaking performance superior to existing recognition, classification, and decision algorithms. Unprecedented results in a wide variety of applications (drones, autonomous driving, robots, stock markets, computer vision, voice, and so on) have signaled the beginning of a golden age for artificial intelligence after 40 years of relative dormancy. Algorithmic research continues to progress at a breath-taking pace as evidenced by the rate of new neural networks being announced. However, traditional Von Neumann based architectures have proven to be inadequate in terms of computation power, and inherently inefficient in their processing of vastly parallel computations, which is a characteristic of deep neural networks. Consequently, global conglomerates such as Intel, Huawei, and Google, as well as large domestic corporations and fabless companies are developing dedicated semiconductor chips customized for artificial intelligence computations. The AI Processor Research Laboratory at ETRI is focusing on the research and development of super low-power AI processor chips. In this article, we present the current trends in computation platform, parallel processing, AI processor, and super-threaded AI processor research being conducted at ETRI.

Digital Holographic Display Technology Trends (디지털 홀로그래픽 디스플레이 기술 동향)

  • Lim, Y.;Hong, K.;Park, M.;Kim, J.
    • Electronics and Telecommunications Trends
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    • v.32 no.5
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    • pp.30-38
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    • 2017
  • Digital holography is generally regarded as one of the most possible candidates for achieving a real 3D display system in that it can fully record and reconstruct the wave characteristics of light. In addition, 3D display systems based on digital holographic technology do not cause a vergence-accommodation mismatch problem. In this report, the recent trends in digital holographic display technology are described, and recent research results related to the fields of augmented reality and virtual reality are also briefly reported.

A Study on the Effect of the Mega trend on the Modern Fashion Design (현대 패션디자인에 나타난 메가 트렌드의 영향에 관한 연구)

  • Jun, Hye-Jung;Ha, Ji-Soo
    • Journal of the Korean Society of Costume
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    • v.57 no.4 s.113
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    • pp.110-125
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    • 2007
  • The purpose of this study is to analyze efforts of the mesa trends on the modern fashion design. For the study documentary research and qualitative content analysis have been carried out. Articles in magazines, seminar reports, and news related to trends were collected and analyzed to develop mega trends nowadays. As results, $2002{\sim}2006$ mega trends were extracted to Co-divergence, Emotional tech, Bi-dentity, Private+One and $2002{\sim}2006$ design trends extracted to Camouflage, Transformation, Modular system, Blur, Ease. The influences of mega trends and design trends on the modern fashion design have been proved. Those were expressed as eclectic style, deconstructionist style, reductive style and functionalist style in fashion design. The present era could be defined as cultural pluralism blended with various cultures and styles. Fashion as the essential display of contemporary culture and society has been successfully confirmed in this study.

Deep Learning Research Trend Analysis using Text Mining

  • Lee, Jee Young
    • International Journal of Advanced Culture Technology
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    • v.7 no.4
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    • pp.295-301
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    • 2019
  • Since the third artificial intelligence boom was triggered by deep learning, it has been 10 years. It is time to analyze and discuss the research trends of deep learning for the stable development of AI. In this regard, this study systematically analyzes the trends of research on deep learning over the past 10 years. We collected research literature on deep learning and performed LDA based topic modeling analysis. We analyzed trends by topic over 10 years. We have also identified differences among the major research countries, China, the United States, South Korea, and United Kingdom. The results of this study will provide insights into research direction on deep learning in the future, and provide implications for the stable development strategy of deep learning.

A Study on the Research Trends of Records and Archive Management in North America through the Review of Archivaria (Archivaria 리뷰를 통한 국외 기록관리학 연구의 동향 분석)

  • Park, Heejin
    • Journal of Korean Society of Archives and Records Management
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    • v.14 no.4
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    • pp.99-125
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    • 2014
  • The study aims to analyze the articles published in Archivaria to identify various trends and to explore the future research agenda in the area of records and archive management. The data used in this study include 75 articles published in Archivaria during the recent five years. In quantitative measurement, the study presents the current status of subject areas by year and author. In content analysis, the articles are categorized into the subject areas related to records and archive management, research topics, as well as the foci and research methodologies used. The results showed the differences between North American and Korean research trends in the area of records and archive management.

Study on the Research Trends and Prospects about Construction Safety & Disaster (건설안전·재해의 연구동향 분석 및 향후 전망)

  • Kim, Kyong-Hoon;Jang, Ho-Myun
    • Journal of the Korea Safety Management & Science
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    • v.16 no.4
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    • pp.21-29
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    • 2014
  • In this study, we recognize that the interest about construction safety and disaster increases, and check the status of current research about construction safety. And we obtain the direction of future researches and implications for development. For this study, we analyzed the published researches in the last 11 years about construction safety, and addressed annual trends and research topics for a lot of construction safety research. And the future prospects of construction safety research were analyzed with the latest news articles.

Identifying research trends in the emergency medical technician field using topic modeling (토픽모델링을 활용한 응급구조사 관련 연구동향)

  • Lee, Jung Eun;Kim, Moo-Hyun
    • The Korean Journal of Emergency Medical Services
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    • v.26 no.2
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    • pp.19-35
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    • 2022
  • Purpose: This study aimed to identify research topics in the emergency medical technician (EMT) field and examine research trends. Methods: In this study, 261 research papers published between January 2000 and May 2022 were collected, and EMT research topics and trends were analyzed using topic modeling techniques. This study used a text mining technique and was conducted using data collection flow, keyword preprocessing, and analysis. Keyword preprocessing and data analysis were done with the RStudio Version 4.0.0 program. Results: Keywords were derived through topic modeling analysis, and eight topics were ultimately identified: patient treatment, various roles, the performance of duties, cardiopulmonary resuscitation, triage systems, job stress, disaster management, and education programs. Conclusion: Based on the research results, it is believed that a study on the development and application of education programs that can successfully increase the emergency care capabilities of EMTs is needed.

Analysis of sustainable fashion research trends using topic modeling (토픽 모델링을 이용한 지속가능패션 연구 동향 분석)

  • Lee, Hana
    • The Research Journal of the Costume Culture
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    • v.29 no.4
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    • pp.538-553
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    • 2021
  • As interest in the sustainable fashion industry continues to increase along with climate issues, it is necessary to identify research trends in sustainable fashion and seek new development directions. Therefore, this study aims to analyze research trends on sustainable fashion. For this purpose, related papers were collected from the KCI (Korean Citation Index) and Scopus, and 340 articles were used for the study. The collected data went through data transformation, data preprocessing, topic modeling analysis, core topic derivation, and visualization through a Python algorithm. A total of eight topics were obtained from the comprehensive analysis: consumer clothing consumption behavior and environment, upcycle product development, product types by environmental approach, ESG business activities, materials and material development, process-based approach, lifestyle and consumer experience, and brand strategy. Topics were related to consumption, production, and education of sustainable fashion, respectively. KCI analysis results and Scopus analysis results derived eight topics but showed differences from the comprehensive analysis results. This study provides primary data for exploring various themes of sustainable fashion. It is significant in that the data were analyzed based on probability using a research method that excluded the subjective value of the researcher. It is recommended that follow-up studies be conducted to examine social trends.