• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2009년 추계학술발표대회
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• pp.103-103
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• 2009

As the size of containership increased over 14,000TEU, thick steel plate with high strength has been used. The plate thickness increased over 70mm and yield strength of the steel plate was around $47kg_f/mm^2$. Many researchers reported that the thick welded plate has low crack arrest toughness. They noticed the crack arrest ability is dependent on the plate thickness. In other words, brittle crack propagates straightly along the welded line and make abrupt fracture in the thick plate which causes low $K_{ca}$. In this study, the other factors, especially welding heat input, to cause low crack arrest toughness was investigated for thick steel plate welds. EH grade steel plates were used in this study and 50 to 80 thick plates were tested to confirm thickness sensitivity. Electro gas welding (EGW) and flux cored arc welding (FCAW) were adopted to prepare the welded joints. Temperature gradient ESSO test was performed to measure $K_{ca}$ values with the variation of welding variables. As a result of this study, regardless of plate thickness, welding heat input to cause welding residual stress around crack path is a key factor to control the brittle crack propagation in welded joints.

• Agribusiness and Information Management
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• 제6권2호
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• pp.40-48
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• 2014

As basic research to develop HEV and EV agricultural field machinery, the present study analyzes the technical trend of electric agricultural field machinery through product analysis, paper analysis, and patent analysis concerning HEV and EV in the automobile, construction machinery, and agricultural machinery sectors. For product analysis, the homepages of companies in these sectors were consulted to analyze the number of products of each company. For paper analysis, key words related to HEV and EV were selected, a search formula was drawn up, and articles search sites were consulted. And for patent analysis too, key words were selected and then a search formula was drawn up to examine published patent applications or registered patent applications, and trends were analyzed by structure, country, and year. The number of HEV and EV products were 17 in the automobile area, 8 in construction machinery, and 4 in agricultural machinery. Notably, in the agricultural machinery area, all HEV and EV products were from advanced companies overseas. In terms of papers, papers published in the past 5 years were searched and 33,195 papers were from the automobile area, 3,806 were from construction machinery, and 2,687, the fewest papers, were from the agricultural machinery area. A search of patents in the electric drive technology area in Korea, USA, and Japan, and Europe showed 1,927 valid patents, with 1,120 in Japan, 497 in USA, 193 in Korea, and 117 in Europe. Analysis of the trend of research on electric agricultural field machinery by product, paper, and patent shows the development of HEV and EV technology in Korea is insufficient compared to USA, Japan, and Europe, which means rapid technological development is needed.

• 한국한의학연구원논문집
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• 제11권1호
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• pp.43-60
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• 2005

Objective : ${\ulcorner}$Wai-Tai-Mi-Yao${\lrcorner}$ had been made by Wang-Dao(王燾) in Tang Dynasty(唐朝). It included not only in those days medical knowledge, but also before medical knowledge. So it is regarded as important classic in the oriental medicine. And there are various bathing therapy methods. Therefore we would like to bring out use sphere and detailed method of bathing therapy in Tang Dynasty and before period. Methodologies :We have researched bathing therapy of ${\ulcorner}$Wai-Tai-Mi-Yao${\lrcorner}$ according to below the procedure. (1) Making a related words list: We have used existing external treatments technical books to make a list. The list is consist of 23 words and includes not only technical terms, but also general terms. (2) Searching sentence: We have searched sentence that contain terms that related with bathing therapies. (3) Analysis of related sentence: We have searched and classified sentence by disease. Conclusions :(1) ${\ulcorner}$Wai-Tai-Mi-Yao${\lrcorner}$ has described 15,180 records. Bathing therapies of ${\ulcorner}$Wai-Tai-Mi-Yao${\lrcorner}$ had been used to cure 726 records from the whole volume. The contents account for 4.8% of the whole volume. (2) ${\ulcorner}$Wai-Tai-Mi-Yao${\lrcorner}$ has described 1,104 diseases. Bathing therapies of ${\ulcorner}$Wai-Tai-Mi-Yao${\lrcorner}$ had been used to cure 293 diseases from the whole diseases. The contents account for 26.5% of the whole volume. (3) These diseases belong to dermatologic, internal, ophthalmic, otolaryngologic, obstetrics, gynecologic, pediatric, surgical and veterinary diseases.

• 한국통신학회논문지
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• 제8권1호
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• pp.1-11
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• 1983

PCM方式에 의한 Telemetry system을 各部別로 設計 및 構成하여 搭載型航空遠隔測定裝置의 開發을 처음으로 追究하였다. 여기에 사용된 時分割多重化方式의 主裝置인 PCM Encoder의 機能은 最大許容人力이 64words/frame이며 bit rate는 140kbit/sec, sampling rate는 200 frames/sec, 그리고 resolution은 10bits/word이다. 그리고 送信裝置의 周波數帶域은 telemetry band인 2.2-2.3GHz(S-band)를 사용하였으며 變調方式은 PCM/FM으로 設計하였다. 이와 같은 telemetry system에 대한 硏究는 처음 試裝開發되는 모든 飛行　에 대하여 飛行試驗中에 일어나는 各種飛行資料를 獲得하기 위한 遠隔測定裝置에 대한 硏究로서 완벽한 性能과 機能을 確認하였다.

• 대한수학교육학회지:수학교육학연구
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• 제8권2호
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• pp.495-507
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• 1998

This article intends to review what problems the terms in calculus have and how those problems are caused. For this purpose We make examinations on the considerations in the analysis of mathematical terminology, which includes the problems of general and technical terms, the meaning and the boundary of words, their consistency, the name and meaning, concept and their concept images, translations and qwerty effects. And in chapter 3, We analyse the textbook which are currently used, through which I was able to find out that the terms in calculus have some problems, In other words, the key terms such as "differentiable", "differential coefficient", "differential" have their roots in the term "differential" but the term "derived function" is very distinct from other terms and thus obstructs the consistency of terms. And the central term "differential" is being used without clear definition. In particular, the fact that "differential", when used in its arbitrary definition, has the image of "splitting minutely" can be an obstacle to understanding the exact concepts of calculus. In chapter 4, We make a review on the history of calculus and the term "differential" currently used in modern mathematics so that I can identify the origin of the problem connected with the usage of the term "differential". We should recognize the specified problems and its causes and keep their instructional implications in mind. Furthermore, following researches and discussions should be made on whether the terminology system of calculus should be reestablished and how the reestablishment should be made.e terminology system of calculus should be reestablished and how the reestablishment should be made.

• 한국콘텐츠학회논문지
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• 제17권1호
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• pp.475-484
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• 2017

본 연구는 EAP 전문 코퍼스 구축과 분석을 통해 유아교육 전문 어휘 목록을 개발하는 것을 목적으로 하고 있다. 이를 위해 유아교육 전문가 2인과의 협의를 통해 선정된 7권의 유아교육 관련 영어 전공 서적을 기초로 50만 단어 수준의 전문 코퍼스를 구축하였다. 유아교육 전문 코퍼스의 어휘적 분포를 분석한 결과 기본 어휘에 해당하는 GSL[1]은 81.86%, 학술어휘에 해당하는 AWL[2]은 9.78%로 타 분야의 학술적 텍스트와 유사한 분포를 나타냈다. 한편 어휘의 다양성을 살펴보기 위해 TTR을 산출한 결과 3.18로 타 코퍼스의 결과와 비교할 때 낮은 수치, 즉 동일한 어휘의 반복이 비교적 많다는 특징을 보여 주었다. 다음으로 빈도와 출현 범위 등을 기준으로 유아교육 분야의 전문 어휘를 추출한 결과 총 224개의 어휘가 선정되었다. 이 어휘 목록은 영어로 유아교육을 가르치기 위한 목적으로 활용될 수 있을 것이며, 특히 영어로 쓰인 유아 교육 분야의 전공서적을 읽기 위한 기초 자료서로 유용성을 지닐 것으로 기대된다.

• 한국실내디자인학회논문집
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• 제19권6호
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• pp.83-90
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• 2010

Emotional interest in the 1970s, Japan started from the technical and engineering beyond the scope, period late structuralist entering the world has been the subject of interest, as well as in academic research is becoming the main theory. In addition, communication between various disciplines such as humanities through the study of consilience and fusion, the human life to continue as a subject, its importance has risen. So this study are to design for the study of emotion through the human heart in space and how the expression of emotions and can be validated in a study. GSD to evaluate the action (verb) and emotional words (adjective) related to two variables to measure the degree of correlation coefficient was an experiment to find out. Picasso painting, it is 'difficult to understand', 'special', 'interesting', 'not interested', 'confused', 'fun', 'anxious', 'dark', 'cool', 'hard' to have relevance, such as the distribution of emotional words, and as a result of the move was a lot of work. This result can be obtained through the arcane resistance of the cubist paintings that make a lot of body movements. In Renoir painting 'stable', 'warm', 'soft', 'easy to understand', 'bright', 'boring', 'curious', such as emotional words ranged to have a relationship with this behavior is less motion in space. This result can be obtained through the understanding of the Impressionist paintings that are less body movements. As a result, space design, emotional design in the evaluation (GSD) for the empirical analysis that evaluated the feasibility and future of the emotional space of the design could be based in the area is considered.

• 한국정보시스템학회지:정보시스템연구
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• 제30권4호
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• pp.277-301
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• 2021

Purpose The purpose of this study is to analyze the sentiment responses of the general public to non-face-to-face work using text mining methodology. As the number of non-face-to-face complaints is increasing over time, it is difficult to review and analyze in traditional methods such as surveys, and there is a limit to reflect real-time issues. Approach This study has proposed a method of the research model, first by collecting and cleansing the data related to non-face-to-face work among tweets posted on Twitter. Second, topics and keywords are extracted from tweets using LDA(Latent Dirichlet Allocation), a topic modeling technique, and changes for each section are analyzed through DTM(Dynamic Topic Modeling). Third, the complaints of non-face-to-face work are analyzed through the classification of positive and negative polarity in the COVID-19 section. Findings As a result of analyzing 1.54 million tweets related to non-face-to-face work, the number of IDs using non-face-to-face work-related words increased 7.2 times and the number of tweets increased 4.8 times after COVID-19. The top frequently used words related to non-face-to-face work appeared in the order of remote jobs, cybersecurity, technical jobs, productivity, and software. The words that have increased after the COVID-19 were concerned about lockdown and dismissal, and business transformation and also mentioned as to secure business continuity and virtual workplace. New Normal was newly mentioned as a new standard. Negative opinions found to be increased in the early stages of COVID-19 from 34% to 43%, and then stabilized again to 36% through non-face-to-face work sentiment analysis. The complaints were, policies such as strengthening cybersecurity, activating communication to improve work productivity, and diversifying work spaces.

• 한국엔터테인먼트산업학회논문지
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• 제13권4호
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• pp.119-129
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• 2019

연기교육에서 기존의 화술교육은 장단음 찾기, 자음과 모음의 조음연습, 딕션연습 등 대사를 표현하는 기술적인 측면에 치중되어 있었으며, 이러한 교육으로 대사가 말처럼 살아나기에는 한계가 있었다. 대사가 살아나는 순간은 배우가 대사를 말하는 사이 단어 이면의 멘탈 이미지를 구체적으로 보는 순간이다. 필자는 뇌과학 분야에서 인지뇌과학과 NLP (Neural Linguistic Programing)의 지식을 빌려와 멘탈 이미지가 무엇인지, 왜 멘탈 이미지가 생각과 감정의 기본 요소인지를 추적한다. 또한, 멘탈 이미지를 섬세하게 떠올리는 과정(하위양식)에서 신체의 근육들이 어떻게 반응하게 되고, 그 반응하는 근육들을 이용해 어떻게 강세, 사이, 피치, 억양 등의 말하기 재료들(강세, 사이, 피치, 억양 등)이 살아나는지를 살펴본다. 이러한 연구를 바탕으로 화술교육에서 왜 멘탈 이미지 교육이 선행되어야 하는지를 증명한다. 결론에서는 멘탈 이미지를 공부하는 과정에서 배우가 만나게 되는 장애물에 대해 열거하고, 장애물을 제거하는 방법 중 하나로 '호흡의 활성화'를 후속논문으로 계획한다.

• 기술혁신연구
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• 제23권3호
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• pp.373-396
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• 2015

본 연구는 기술보증기금의 기술평가자료를 활용하여 고성장기업의 결정요인에 대하여 분석하였다. 본 연구가 기존 연구와 다른 점은 3가지이다. 첫째, 현재 고성장 기업이 아닌, 향후 고성장기업으로 성장할 기업의 결정요인을 분석하였다. 둘째, 고성장기업을 매출과 고용 2가지 측면에서 각각 구분하여 분석하였다 즉, 매출증가와 고용창출에서 모두 고성장을 달성한 경우, 고용창출 측면에서는 고성장을 기록했지만 매출증가 측면에서는 저성장인 경우, 그리고 매출증가만 고성장을 달성하고 고용창출은 저성장을 기록한 경우의 세 가지 유형으로 구분하여 분석하였다. 셋째, 기술보증기금 기술평가모형(KTRS)의 기술평가지표를 설명변수로 적용하였다. 분석결과, 기술의 수명주기상 위치가 적절하고 기술의 완성도가 높을 경우에는 향후 매출과 고용이 모두 고성장하고 있다. 기술인력관리가 잘 되는 기업은 고용측면에서는 고성장을 하지만 매출측면에서는 오히려 저성장하고 있다. 이러한 결과는 고용고성장기업이 주로 기술인력관리가 중요한 하이테크산업에서 발생될지도 모른다는 추론을 가능케 한다. 이에 하이테크산업 여부를 나타내는 더미변수를 추가하여 분석한 결과, 하이테크산업에 속한 기업은 고용고성장의 가능성이 높은 것으로 나타나 이러한 추론을 뒷받침하는 결과를 보였다.