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손유리 ( Yu-ri Son ),신윤정 ( Yun-jeong Shin ),이하연 ( Ha-yeon Lee ),임상진 ( Sang-jin Im ),김인수 ( In-soo Kim ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2
용접작업은 다양한 산업에서 이루어지는 중요한 작업인데 반해, 여러 가지 위험요소들로 인해 작업자의 건강에 위협을 가할 수 있다. 또한, 용접 작업자들을 효율적으로 관리할 수 있는 안전점검인력이 부족한 실정이다. 이에 본 논문은 항만 용접 작업자의 안전을 위한 스마트헬멧 제작과 연동 APP을 개발하여, 체계적으로 작업자의 건강을 관리하고 안전사고를 미연에 방지하는 데에 그 목적이 있다.
도토리에서 분리한 Dotorioside I, II의 구조
임광식,손미정,이시강,Im, Kwang-Sik,Son, Mee-Jeong,Lee, See-Kang 대한약학회 1994 약학회지 Vol.38 No.3
From the methanolic extractive of the fruits of Quercus acutissima $C_{ARRUTHERS}$(Fagaceae) a mixture(QC-A saponin) of two ester glycosides, which were named as dotorioside I(3) and ll(4), was separated by silica gel column chromatography and HPLC. The structures of these two glycosides including their genuine aglycones(1,2) were elucidated as 1: $2{\alpha}$, $3{\beta}$, $19{\alpha}$, 23-tetrahydroxyolean-12-en-28-oic acid, 2: $2{\alpha}$, $3{\beta}$, $19{\alpha}$, 23-tetrahydroxyurs-12-en-28-oci acid, 3: 28-O-${\beta}$-D-glucopyranosyl ester of 1, 4: 28-O-${\beta}$-D-glucopyranosyl ester of 2, respectively, on the basis of chemical and spectral evidence.
임광섭,손태양,정하늘,권동준,남상용,Im, Kwang Seop,Son, Tae Yang,Jeong, Ha Neul,Kwon, Dong Jun,Nam, Sang Yong 한국막학회 2021 멤브레인 Vol.31 No.2
알칼리 수전해 시스템은 다양한 수소 생산 공정 중에서 가장 온실가스 발생량이 적은 그린 수소를 생산하는 방식 중 가장 오래된 기술이다. 알칼리 수전해 시스템은 알칼리 조건에서 사용되며, 고분자 전해질막 수전해와는 다르게 니켈, 코발트, 은 등의 안정한 전이금속을 전극촉매로 사용할 수 있다. 이 시스템은 가격이 저렴하고 대용량화가 용이하다는 장점을 가지고 있다. 이러한 장점으로 알칼리 수전해 시스템은 20세기 초부터 MW급 수소발생장치에 적용되어 왔으며 현재 20여 개의 제조업체에서 상용제품을 판매하고 있는 안정화된 기술이다. 본 논문에서는 알칼라인 수전해의 기본원리 및 사용되는 촉매, 전극, 격막 등에 대해 알아보고 그 중 핵심소재인 격막의 연구개발 동향에 대해 살펴보고자 한다. Alkaline water electrolysis system is the oldest technology among various hydrogen production processes to produce green hydrogen with the least amount of greenhouse gas generated. Alkaline water electrolysis (AWE) system is used in alkaline atmosphere condition. In comparison to polymer electrolyte membrane water electrolysis (PEMWE), this system can utilize stable transition metals such as nickel, cobalt, and silver, as electrode catalysts. AWE is relatively inexpensive, and can easily be scaled up to large scale. The system is a mature technology, as it has been in operation since the beginning of the 20th century in MW-scale for hydrogen generation, and there are currently more than 20 commercial manufacturers. In this review, the basic principles of AWE, along with catalysts, electrodes, and diaphragm membranes, are summarized. Particularly, the research and development trends of the diaphragm membrane unit, which is the core component of an AWE, are discussed in detail.
요추부 질환에 적용하는 추나 치료에 대한 국내 연구 동향
최희승,최영일,손슬기,최철우,임한빛,김동환,정연재,Choi, Hee-Seung,Choi, Young-Il,Son, Seol-Ki,Choi, Chul-Woo,Im, Han-Bit,Kim, Dong-Hwan,Jeong, Yeon-Jae 척추신경추나의학회 2012 척추신경추나의학회지 Vol.7 No.2
Objectives : The present study examines the domestic trend of Chuna treatments on lumbar spinal disorder in Korea. Methods : We investigated the studies on Chuna treatments for lumbar spinal disorder via searching 10 Korean web databases. As a result, 63 research papers were found to be analyzed according to their published year, the titles of journals, the types of study, the techniques of Chuna, the instruments for assessment, the Chuna technique and the number of the treatment trials by the cases of lumbar spinal disorder and ethical approvals. Results : The number of the research papers published tends to increase every year. The studies on Chuna treatments were mainly published in The Journal of Korea CHUNA Manual Medicine for Spine & Nerves. The most frequently adopted technique of Chuna in the examined studies was Cox flexion & distraction technique. Visual analogue scale(VAS), oswestry disability questionnaire(ODI) were used as primary means of assessments. The ethical problems of the examined studies needed to be improved. Conclusion : Reviewing the domestic trend of studies on Chuna treatments for lumbar spinal disorder and examining the strong and weak points of those treatments are essential for the future studies. It is anticipated that this review benefits the future in-depth study on the treatments for Chuna in Korean medicine.
자기주도학습과 자기조절학습 프로그램이 수학의 인지적 영역과 정의적 영역에 주는 효과에 대한 메타분석
고호경 ( Ko Ho Kyoung ),김형식 ( Kim Hyoungsik ),손복은 ( Son Bokeun ),손정임 ( Son Jeong-im ),이지혜 ( Ee Jihye ),이형주 ( Lee Hyoungju ) 한국수학교육학회 2016 수학교육 Vol.55 No.3
The purpose of this study was to report the effects of self-directed and self-regulated learning programs on elementary, middle, and high school students through meta-analysis of previous studies. For this research, 22 of previous studies were selected which were all conducted in the country, and calculated the effect size of ‘standardized change of the mean difference’ for many factors included in each research. The findings were as follows: first, the overall effect sizes of self-directed and self regulated learning programs on elementary, middle, and high school students were .665 and .702 in the affective and cognitive domain, respectively, meaning that the self-directed and self-regulated learning programs had average or greater effects on elementary, middle, and high school students and exerted somewhat greater effects in the cognitive domain. Second, when the areas of moderating effects were divided into self directed and self-regulated learning, the former and latter had more influences on the cognitive and affective domains, respectively. Third, the elementary school level recorded a larger effect size both in the affective and cognitive domains than the secondary school level. Fourth, the findings show that the characteristics of affective domain, "reflective thinking" and "self-confidence," recorded a very large effect size both at the elementary and secondary school levels. Finally, the programs were more effective when the application period was one to four weeks in the affective domain and more than four weeks in the cognitive domain. And, Significance and implications of this research were discussed.
사물인터넷 기반 빅데이터 분석을 활용한 스마트 건설안전관리 프레임워크 개발에 관한 연구
홍민영(Hong, Min-Young),박주연(Park, Ju-Yun),이희림(Lee, Hee-Rim),임채은(Im, Chae-Eun),장혜진(Jang, Hye-JinSon),손정욱(Son, Jeong-Wook) 대한건축학회 2017 대한건축학회 학술발표대회 논문집 Vol.37 No.2
The purpose of this study was utilize the Internet of Things and big data analysis, which have become very important recently, in the construction industry. Construction industry showed higher industrial accidents than other industries. Also, a lot of data was collected at the construction site, but it disappeared without being utilized. So, we collected and analyzed various data that was related to construction safety and derived meaningful information. And we have developed smart construction safety management framework using big data analysis based on Internet of Things technology.