• Journal of the Korean Society for Library and Information Science
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• v.53 no.4
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• pp.171-187
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• 2019

The study aims to analyze the posts of depression-related Facebook groups to understand major topics discussed by group users. Specifically, the purpose of the study is to identify the topics and keywords of the posts to understand what users discuss about depression. Depression is a mental disorder that is somewhat sensitive in the online community, which is characterized by accessibility, openness and anonymity. The researchers have implemented a natural language-based data analysis framework that includes components ranging from Facebook data collection to the automated extraction of topics. Using the framework, we collected and analyzed 885 posts created in the past one year from the largest Facebook depression group. To derive more complete and accurate topics, we combined both automated and manual (e.g., stop words removal, topic size determination) methods. Results indicate that users discuss a variety of topics including depression in general, human relations, mood and feeling, depression symptoms, suicide, medical references, family and etc.

• Journal of Digital Convergence
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• v.17 no.1
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• pp.91-98
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• 2019

The present study was performed to investigate the general research trends of dyslexia and learning disability to explore the centrality of related variables though analysis of keyword networks. Data were collected from ten years articles research information sharing service(RISS) which is provided by korea education and research information service(KERIS). The research subjects selected for the analysis were keyword cleansing work, extraction major keyword using KrKwic program and using NodeXL program to Visualize the center of connection between keyword. The results of this were as follows. First, totally 72 of keyword were extracted from keyword cleansing process and among those keyword. major keywords included learning disability, dyslexia, RTI. Second, analysis of the betweenness centrality of dyslexia and learing disabilities shows that learning disabilities are a key word that has been addressed in the study of dyslexia and learning disabilities in korea. The results of these studies suggest a method of analyzing trends in qualitative and qualitative analysis in relation to dyslexia and learning disorder.

• Tribology and Lubricants
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• v.28 no.1
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• pp.33-37
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• 2012

Automotive wheel bearing grease helps to reduce stresses and prevent wear of wheel bearings. But it is easily contaminated by water and other contaminants. Previously, our research group reported the change of grease physical properties such as dropping point, work penetration and oxidation work stability, water washout characteristics, leakage tendency, oil separation, evaporation loss and rust protection by water contamination. In this paper, we analyzed the physical characteristics of grease such as lubricity, viscosity and total acid number to investigate the mechanism of thickener decomposition. In water contaminated grease, the total acid number and wear scar were increased, the viscosity was decreased due to the decomposition of lithium complex thickener.

• Journal of the Korean Society for information Management
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• v.36 no.4
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• pp.207-226
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• 2019

Depression is a serious psychological disease that is expected to afflict an increasing number of people. And studies on depression have been conducted in the context of social media because social media is a platform through which users often frankly express their emotions and often reveal their mental states. In this study, large amounts of Korean text were collected and analyzed to determine whether such data could be used to detect depression in users. This study analyzed data collected from Twitter users who had and did not have depressive tendencies between January 2016 and February 2019. The data for each user was separately analyzed before and after the appearance of depressive tendencies to see how their expression changed. In this study the data were analyzed through co-occurrence word analysis, topic modeling, and sentiment analysis. This study's automated data collection method enabled analyses of data collected over a relatively long period of time. Also it compared the textual characteristics of users with depressive tendencies to those without depressive tendencies.

• Proceedings of the Korean Society for Information Management Conference
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• 2012.08a
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• pp.143-146
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• 2012

본 연구에서는 MEDLINE에 수록된 논문의 암 관련 우울증 문헌을 대상으로 MeSH(Medical Subject Headings) 키워드를 이용하여 1992년부터 2011년까지 20년간의 연구 동향을 분석하였다. 암과 우울증에 해당하는 MeSH 키워드를 주제로 다룬 논문 3,389편과 50,778개의 키워드를 대상으로 주요 학술지 및 암 발병 위치와 우울증 치료요법을 분석하였다. 암 관련 우울증 논문의 암 발병 위치별 빈도는 유방암이 799편으로 가장 높았으며, 폐암, 전립선암, 뇌종양, 두경부암이 뒤를 이었다. 또한 우울증 치료 요법별 빈도는 비약물치료가 552편으로 약물치료 400편보다 높게 나타났으며 비약물치료는 크게 상담치료와 상담 외 치료에 대한 키워드로 구분되었고, 약물치료는 치료 요법명과 약명으로 다시 구분되었다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.01a
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• pp.119-120
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• 2021

본 연구의 목적은 Big Data를 활용하여 우리나라 빈곤, 실업, 질병의 우울증과의 인과관계를 규명하고자 한다. 이를 위해 Google 트랜드의 지난 5년간(2015.12. 27~2020.12.20.)의 빈곤-실업-질병-우울증 등의 주제어 중심의 분석을 시도하였다. 분석결과, 빈곤(B=.295, p<.001)과 실업(B=.404, p<.001)은 질병에 유의미한 영향을 미치며, 빈곤(B=.150, p<.01)과 질병(B=.186, p<.01) 및 실업(B=.466, p<.001)은 우울증에 유의미한 영향을 미치는 것으로 나타났다.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 1998.10a
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• pp.306-312
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• 1998

This paper describes syntheses of thickener for di-urea grease using constant velocity joint. The thickeners of di-urea grease were synthesized by reaction of diisocyanate with various alkylamines, hexylamine, octylamine, stearylamine and cyclohexylamine at high temperatxire. The synthesized thickener were analyzed by FT-IR spectroscopy and two kinds of Mass spectroscopy (EI & FAB). Dropping point and Consistency of synthesized di-urea grease were determined.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.25 no.4
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• pp.147-169
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• 2014

This study was conducted to contribute to the improvement of bibliotherapy programs in the LIS field by analyzing 76 bibliotherapy program researches of 6 different major fields published in journals during 2001 to 2014. The programs were analyzed in terms of research trends, major areas, subjects and detail subjects. According to the study, the proportion of graduate students was higher than that of professors and instructors in terms of researchers' status in LIS and psychology. Also, programs for elementary students were found to be frequently carried out in schools and libraries by all fields. As for the topics of the programs, self-esteem was the most frequent topic and others such as depression, broken families, sociality, academic achievement and interpersonal relationships were also being dealt with. Detail subjects, measurement tools and application data have been proposed according to different research subjects.

• Journal of the korean veterinary medical association
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• v.28 no.6
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• pp.321-329
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• 1992

'주' 필자는 최근(1992년 3월 5일$\~$30일)에, 한일공동 연구사업 수행을 위하여 일본정부 과학기술청의 <개별 전문가 초청계획>에 의한 초청을 받아 일본 농림수산성 가축위생시험장을 다녀왔다. 본래, 일본에 가게된 주 목적은 '소 타일레리아병에 관한 병원학적 비교연구'이었으며, 진드기 체내 및 우체내에 있어서의 타일레리아 원충의 발육단계별 정밀진단과 정제백신 개발을 위한 생물공학적 기술응용 연구가 주요 과제내용이었다. 마침, 제 113회 일본 수의학회 학술대회(1992년 4월 2일$\~$4일)의 개최가 예정되어 있었고, 이 학회의 <기생충학 분과회 심포지움>의 주제가 '톱밥 축사에 있어서의 새로운 선충성 질병'이었으며, 그 심포지움의 대장으로 예정되어 있는 평 조형 박사(일본 농림수산성 가축위생시험장 기생충연구실 실장)및 공동연구자 중촌의남 박사 등과 접촉하여 연구실 견학 및 토의를 할 수 있는 기회를 가진 바 있으며(사진 참조), 관련된 최신문헌을 입수한 바 있다. 본 편에서는, 최근에 일본에서 새로운 기생충성 질병으로 문제시 되고 있는 '송아지 돌연사'와 관련하여, 그 병원체인 유두분선충(Strongyloides papilosus)의 감염피해 실태와 인공감염시험 결과 등에 대하여 금년도 일본수의학회 기생충학 분과회 심포지움 주제발표 내용을 중심으로 하여 해설을 드리고 한편, 유두분선충증의 병원체 및 생활환모형, 감염역학과 감염성립조건, 진단 및 치료대책, 향후 연구문제와 전망 등에 대하여 함께 고찰해 보고자 한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.1
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• pp.66-74
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• 2017

This study was aimed to construct a theoretical model for managing persons with early psychosis. We systematically searched SCOPUS, PubMed, RISS, Web of Knowledge, and KoreaMed for related factors to manage persons with early psychosis. Significant terms or phrases for a preliminary structural model were obtained from 19 studies since 2000 regarding the management of persons with early psychosis. Moreover, the content validity for the model was evaluated by 22 professionals. The study results revealed 51 factors for managing persons with early psychosis extracted by meta-analysis, and all factors were divided into 21 medium classification and 8 categories. A theoretical model was constructed with 8 categories, by using the middle range theory of Peplau's Interpersonal Relationships in Nursing. The results suggest that the theoretical model for the management of persons with early psychosis provides a sound theoretical basis for future study.