• 제목/요약/키워드: IT major

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DEA 모형을 이용한 주요정보통신기반시설 취약점 분석·평가의 효율성 분석 (Analysis of Efficiency of Major Information and Communication Infrastructure Analysis and Evaluation Methods Using DEA Model)

  • 선종욱;이경호
    • 정보보호학회논문지
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    • 제31권4호
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    • pp.853-862
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    • 2021
  • 오늘날 국가 기반시설의 전자적 침해 행위에 의한 정보통신 인프라의 교란 및 마비가 위협 요소로 대두되고 있다. 이에 정부는 주요 기반시설의 정보시스템 및 제어시스템을 보호하기 위해 주요정보통신기반시설 취약점 분석·평가제도를 정기적으로 시행하고 있으며 이를 효율적으로 운영하기 위해 매년 늘어난 인적·물적 자원을 투자하고 있다. 그러나 이러한 정부의 노력에도 불구하고 국가 기반시설을 대상으로 한 침해사고가 지속해서 발생함에 따라 정보보호 기반마련을 위한 정부의 자원 투입이 정보보호 활동 결과 산출에 미치는 영향도가 떨어져 평가체계가 효율적이지 못하다는 의문이 제기되고 있다. 따라서 본 연구에서는 주요정보통신기반시설 취약점 분석·평가 제도의 효율적 운용여부를 DEA 모형을 이용해 검토하고, 분석된 결과를 바탕으로 정보보호 수준 제고를 위한 개선방안을 제안하도록 한다.

비전공자를 위한 파이썬 기초 프로그래밍 커리큘럼과 평가문제 개발분석 (Python Basic Programming Curriculum for Non-majors and Development Analysis of Evaluation Problems)

  • 허경
    • 실천공학교육논문지
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    • 제14권1호
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    • pp.75-83
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    • 2022
  • 파이썬 프로그래밍 언어를 강의하는 과목은, 일반 대학에서 모든 재학생이 필수로 이수하는 교양 과목으로 대부분 운영되고 있다. 이를 통해, 컴퓨팅 사고에 의한 기초 프로그래밍 과정을 학습한 비전공자 학생들이 다양한 전공 분야에서 SW를 적용할 수 있는 융합 역량을 강화하고 있다. 기존 연구결과에서는 컴퓨팅 사고 개념 이해와 코드 작성 역량에 대한 다양한 평가 방법들이 제시되었다. 그러나, 평가 문제 사례는 제시되지 않아, 실제 과목 운영 시 적용하는 데 어려움이 있다. 이에 본 논문에서는 비전공자들을 위한 교양과목으로 적용할 수 있는 파이썬 기초 프로그래밍 커리큘럼을 ADDIE 모형에 따라 제안하였다. 그리고 제안된 상세 커리큘럼에 따른 파이썬 요소별 평가 문제 사례를 1차와 2차로 나누어 제안하였다. 마지막으로 본 평가 문제 사례를 적용한 강좌에서 산출된 비전공자 학생들의 평가 점수 결과를 바탕으로 제안한 평가 문제의 유효성을 분석하였다. 제안된 평가 문제 사례는 실시간 온라인 비대면 평가 방식으로 적용하여, 효과적으로 비전공자 학생들의 프로그래밍 역량을 평가할 수 있음을 확인하였다.

영농형 태양광 발전 시설 하부의 일사량 분포 모의 (Simulation of Solar Irradiance Distribution Under Agrivoltaic Facilities)

  • 정영준;이상익;이종혁;서병훈;김동수;이지민;최원
    • 한국농공학회논문집
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    • 제64권2호
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    • pp.1-13
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    • 2022
  • Agrivoltaic facility is the composite system that the solar panel is installed above the farmland, and it enables crop and electricity production simultaneously. Solar panels of the agrivoltaic facilities can block and reduce the amount of solar irradiance arriving at the farmland, but it can help the crop growth by preventing excessive solar irradiance. Therefore, to clarify how the agrivoltaic facilities affect the crop growth, precise solar irradiance distribution under the solar panel should be modeled. In this study, PAR (photosynthetically active radiation), radiation from 400 to 700 nm, which crops usually use to grow, was extracted from the total irradiance and its distribution model under various conditions was developed. Monthly irradiance distributions varied because the elevation of the sun was changed over time, which made the position changed that the local maximum and minimum irradiance appear. The higher panel height did not cause any significant difference in the amount of irradiance reaching below the solar panel, but its distribution became more uniform. Furthermore, the panel angles with the most irradiance arriving below the solar panel were different by month, but its difference was up to 2%p between the irradiance with 30° angle which is usually recommended in Korea. Finally, the interval between panels was adjusted; when the ratio of the length of the panel to the empty space was 1:2, the irradiance of 0.719 times was reached compared to when there was no panel, 0.579 times for 1:1 and 0.442 times for 2:1.

미용전공 학생들의 네일미용 관련 특성과 네일제품 구매 고려요소에 대한 연구 (A study on considerations when purchasing nail products and the nail beauty-related characteristics of beauty major students)

  • 설현진
    • 복식문화연구
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    • 제30권5호
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    • pp.703-716
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    • 2022
  • This study was conducted with students who had experience in purchasing nail products asa result of by taking the nail design course of the department of beauty at a junior college. The purpose of this study was to provide useful information to nail companies, including the importance of product elements and effective media promotion, to support the planning and promoting of nail products for beauty major students. Means analysis, one-way ANOVA, and multiple regression analysis were conducted on detailed characteristics related to nail beauty (degree of nail management, degree of contact with nail beauty media) and considerations for the purchase of nail products. The results were as follows: For beauty major students, it was concluded that the greater the interest in nail beauty, such as degree of nail management and degree of contact with nail beauty media, the greater the interest in product quality, purpose, and safety, which are practical product elements considered when purchasing nail products. It was also confirmed that Instagram and YouTube advertising media have a significant effect on promoting nail product brands for beauty major students. As the subjects of this study comprise beauty major students in their early 20s, there is a limit to expanding and applying the conclusions of this study to general nail product consumers. Therefore, in subsequent studies, analysise of a wider range of nail product consumers should be conducted through an expanded sampling method.

갱폼 공사 중대재해 사고 예방을 위한 체크리스트 개발 (Checklist Development for Preventing of Major Accidents of Formwork Using Gang-form)

  • 정경태;김시유;오정은;이동훈
    • 한국건설안전학회 논문집
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    • 제5권1호
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    • pp.9-16
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    • 2023
  • 본 연구에서는 갱폼 건설현장의 안전사고에 대한 유해 위험방지와 안전대책을 위해 갱폼 공사 중대재해 사고 예방을 위한 체크리스트를 개발하였다. 연구 방법은 갱폼 공사 건설현장의 체크리스트 항목을 도출하기 위하여 국내 건설현장에서 발생했던 1명 이상의 사망사고가 발생한 중대재해 사례를 분석하였다. 국내 건설현장에서의 중대재해 사례 36건을 분석하여 총 20개의 위험요인을 도출하였으며, 위험요인을 사전에 점검하기 위한 안전관리 항목 총 43가지 항목을 도출하였다. 도출된 안전관리 항목의 중요도와 체크리스트 형식에 대한 적합성을 평가하기 위해 안전관리전문가 37명을 대상으로 설문조사를 진행하였다. 본 연구의 결과로 체크리스트를 도출하였으며, 갱폼 공정순서인 조립, 설치, 해체/인양, 기타를 기준으로 체크항목을 중요도 순서로 배치하여 작업자 스스로가 갱폼의 작업순서와 안전수칙을 준수할 수 있도록 체크리스트를 구성하였다. 본 연구의 결과가 갱폼 건설현장에서의 사망자와 재해자가 줄어들 수 있기를 기대한다.

간호대학생의 대학생활적응, 스트레스, 전공만족도가 진로결정자기효능감에 미치는 영향 (The Influence of Adjustment to College Life, Stress and Major Satisfaction on Career Decision-Making Self-Efficacy in Nursing Students)

  • 신은선
    • 문화기술의 융합
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    • 제9권5호
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    • pp.885-896
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    • 2023
  • 본 연구는 간호대학생의 대학생활적응, 스트레스 및 전공만족도의 관계를 파악하고 진로결정자기효능감에 영향을 미치는 요인을 규명하고자 시도되었다. 연구의 대상자는 일 지역에 소재하는 두개 종합대학교의 간호학과에 재학중인 학생으로 298명이었으며, 자료수집은 2023년 4월 24일부터 5월 9일까지 실시되었다. 연구결과, 대학생활적응과 스트레스 간에 유의한 음의 상관관계를 보였고, 전공만족도와 진로결정자기효능감 간에 유의한 양의 상관관계가 있는 것으로 나타났다. 진로결정자기효능감에 전공만족도가 가장 큰 영향을 미치는 예측변인이었고, 설명력은 44.8%로 나타났다. 이는 진로결정자기효능감이 높은 간호대학생이 간호학과를 선택한 경우 전공에 만족하고 대학생활적응을 잘하는 것으로 보여진다. 그래서 진로결정자기효능감을 높이기 위한 다양한 진로탐색 및 진로교육프로그램 개발이 요구된다.

토픽모델링과 사회연결망 분석을 통한 우리나라 유엔 평화유지활동 동향 탐색 (Exploring trends in U.N. Peacekeeping Activities in Korea through Topic Modeling and Social Network Analysis)

  • 정동현;김찬송;이강민;배소은;서연;설현주
    • 산업경영시스템학회지
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    • 제46권4호
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    • pp.246-262
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    • 2023
  • The purpose of this study is to identify the major peacekeeping activities that the Korean armed forces has performed from the past to the present. To do this, we collected 692 press releases from the National Defense Daily over the past 20 years and performed topic modeling and social network analysis. As a result of topic modeling analysis, 112 major keywords and 8 topics were derived, and as a result of examining the Korean armed forces's peacekeeping activities based on the topics, 6 major activities and 2 related matters were identified. The six major activities were 'Northeast Asian defense cooperation', 'multinational force activities', 'civil operations', 'defense diplomacy', 'ceasefire monitoring group', and 'pro-Korean activities', and 'general troop deployment' related to troop deployment in general. Next, social network analysis was performed to examine the relationship between keywords and major keywords related to topic decision, and the keywords 'overseas', 'dispatch', and 'high level' were derived as key words in the network. This study is meaningful in that it first examined the topic of the Korean armed forces's peacekeeping activities over the past 20 years by applying big data techniques based on the National Defense Daily, an unstructured document. In addition, it is expected that the derived topics can be used as a basis for exploring the direction of development of Korea's peacekeeping activities in the future.

꽃게 통발용 미끼 및 미끼통의 형광 특성 (Fluorescent characteristics of baits and bait cages for swimming crab Portunus trituberculatus pots)

  • 장호영;구재근;이근우;조봉곤;정병곤
    • 수산해양기술연구
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    • 제44권3호
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    • pp.174-183
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    • 2008
  • In order to develop the substitutive materials for natural baits of swimming crab pots, the fluorescent characteristics of the baits were analyzed, and the preference of fluorescent dyes were investigated by the mean entrapped catch number to the pots through the water tank experiments and fishing experiments. On the investigation of fluorescent characteristics by the 5 kinds of baits, mackerel, krill, manila clam, pig's fat and chicken's head which were used in substitutive baits for test in the UV long wave(365nm) area, it showed clear blue fluorescence in the skin of mackerel, shell of krill, manila clam and bill of chicken's head, and green fluorescence in the mackerel s muscle and internals, and yellow fluorescence in the pig's fat and chicken's head. On the investigation of fluorescent characteristics by the bait cages in the UV short wave(254nm) and long wave(365nm) area, it showed each green, red and blue fluorescence in the cylinderical or hexahedral red plastic bait cages which were painted each green, red and blue fluorescence dyes, but it showed yellowish green flourescence in the cylinderical or hexahedral red plastic bait cage which was painted yellow fluorescent dye. On the preference investigation of the fluorescent dyes of swimming crabs by the 5 kinds of the bait cages which were put the mackerel in the non-fluorescent red plastic cage($RF_N$), red, yellow, green and blue fluorescent plastic cages(RF, YF, GF, BF) each, nonfluorescent red plastic cage($RF_N$) was entrapped mean 2.0(6.7%), but blue fluorescent plastic cage(BF) was mean 5.0(16.7%) and it was more 2.5 times comparing to $RF_N$, and red fluorescent cage(RF) was same level and green fluorescent cage(GF) was 50% of catch number comparing to $RF_N$, and yellow fluorescent cage(YF) was entrapped nothing(F 46.324, P < 0.05). On the investigation of the entrapped catch number to the pots which were put the mackerel in the blue fluorescent hexahedral plastic cage(HP) and blue fluorescent silicon mackerel model cage(SM), HP was mean 3.4(11.3%) and it was a little more comparing to SM which was entrapped mean 3.2(10.7%)(t 0.775, P > 0.05). Fishing experiments on the preference investigation of swimming crabs by the pots which were put in the non-fluorescent red plastic cage($RF_N$) and blue fluorescent plastic cage(BF) were conducted 3 times. Mean catching number and weight of $RF_N$ were 71.7 ind.(18.3%) and 16.9kg(64.3%), and those of BF were 93.0 ind.(23.1%) and 19.8kg(64.5%), respectively.

Technological Convergence of IT and BT: Evidence from Patent Analysis

  • Geum, Young-Jung;Kim, Chul-Hyun;Lee, Sung-Joo;Kim, Moon-Soo
    • ETRI Journal
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    • 제34권3호
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    • pp.439-449
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    • 2012
  • In recent innovation trends, one notable feature is the merging and overlapping of technologies: in other words, technological convergence. A key technological convergence is the fusion of biotechnology (BT) and information technology (IT). Major IT advances have led to innovative devices that allow us to advance BT. However, the lack of data on IT-BT convergence is a major impediment: relatively little research has analyzed the inter-disciplinary relationship of different industries. We propose a systematic approach to analyzing the technological convergence of BT and IT. Patent analysis, including citation and co-classification analyses, was adopted as a main method to measure the convergence intensity and coverage, and two portfolio matrices were developed to manage the technological convergence. The contribution of this paper is that it provides practical evidences for IT-BT convergence, based on quantitative data and systematic processes. This has managerial implications for each sector of IT and BT.

가정학교육과 취업방안연구 (A Study on Home Economist Education with Refrence to the Business Activities in Korea)

  • 한상순
    • 대한가정학회지
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    • 제27권2호
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    • pp.163-185
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    • 1989
  • Korean home economics education has around 100 years history. The main aims of home economics education up 1950 had not been changed, they were mainly for the improvement of household-skill to raise both standard of living and life quality as well as womanhood. After 1960's the standard of living drastically improved and the industrialization of Korean society was quite rapidly proceeded from simple to complex one. Because of these changes, I considered that the aims and the contents of home economics education should be reexamined and reshaped. This study motivated me that especially home economics major should be trained to be competent enough to work in industrialized society as much as the input to her college education. As industialization was made progress, family member's diverse role differentiation also occurred from past simple role such as house wife or girl's high school teacher among by home economics major. In this current societal change, most of the home economics major have wish to have opportunities obtaining new kinds of employment rather than obtaining merely teaching work. With this in mind I made a study on college level home economics education of the new adjustment to current and future industrialized Korean society. (1) The full number of officially admissible home economics major in 169 Korean colleges, 70 junior colleges, and one open university were as follows, 7139, 6080, and 230 respectively. The percentages of employed of employed numbers of them for the college and junior college graduates were 26.5 and 39.0 respectively. (2) The certificate qualifications issued to college home economics major are nutritionist (1st grade and 2nd grade), clothes and textilist, home economics teacher (2nd grade for high school) and kindergartener (2nd grade), The qualifications are certified after majoring each field from major departments of college of home economics by Ministrys of Labour and Education of the Korean government. The percentages of their employment are low as mentioned earlier. (3) To find out new employment opportunity for home economics graduates in home economist in business (henceforce/HEIB) status quo of consumer division for mational enterprise was surveyed. According to govermment decree of general law of consumer protection (1980), enterprise should organize bureau (offics, subdivision) on liability to consumer's complaint. Of 89.6% of the enterprise established th subdivision in which 96.2% of employee was male (3.8% was female). Of the employee college graduate and high school graduate were 93.2% and 6.8% respectively. On the employee's major acadmic backgroud (%), economics and business administration, engineering and low-political science were 39.5, 26.2 and 11.2 respectively. (4) To study on the relation between home economics and home economist in business, the aspect of historical development of HEIB, group of HEIB employing enterprise and their nature of business were tried to find out as well as perception and evaluation by enterprise on HEIB. (a) In the united States of America employed home economics major to enterprise was organized autonomously HEIB subdivision within American Home Economics Association since 1920's and the membership of HEIB was 3,000 of the AHEA membership 50,000. (b) In Japan the Japanese founder HEIB had three times the bilateral congress with the U.S.HEIB and had 10th anniversary celebration in 1988. Japanese HEIB member are not necessary to be home economics graduates but should have certificate as consumer adviser effected by the Minister of Trade and Industry. Japanese subdivision of consumer affaire within Japanese enterprise employ the consumer adviser with the certificate. Because of this different system from the United Sates, Japanese HEIB call their title "HEEB" instead of HEIB. The Japanese consumer adviser certificate system had initiated since 1980 and it belongs to 2nd level national qualification certificate. Currently active membership of Japanese "HEEB" association had increased from 115 (in 1979) to 319 in 1988. (5) For the opening of the future new employment of home economics graduates to enterprise and qualification required for the HEIB by national enterprise in Korea, I studied on the courses which seem to be important and required by employee in the field of HEEB in the United States of America and preliminary curriculum for home economics related major student aimning to be the future "HEEB" by Japanese HEEB study group of Japanese Association of Home Economics. It is suggested that it is very important and urgent to realize as home economics educator to have common deep concern and endeavors on opening new employment for our home economics major student1), we should try to publicize strongly and let enterprise and consumer protection board realize that employee in the subdivision of consumer protection should be the one who well experienced home economics major graduates2), we, home economics educator, should try to develop actively new curriculum in line of the suggestion made earlier for our future home economics major student of open broadly their future employment opportunities3), we, home economics educators, should try to have consensus on whether we should have support from government in terms of receiving national qualification certificate on consumer pretection or not4), and I would appreciate if the Korean Home Economics Association and Korean Home Management Society paydeep and positive concern on this matter.

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