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Comparative Analysis of the New and Old Secondary School Science Textbooks (중학교 과학교과서의 비교분석)

  • Kim, Seong-Jin;Pak, Sung-Jae
    • Journal of The Korean Association For Science Education
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    • v.5 no.1
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    • pp.49-61
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    • 1985
  • In this study, I compared and analyzed the new and old secondary school science textbooks to find the charateristics of them and the differences between them. The results of the study are the following. Major concepts in the new textbook are almost similar to those in the old one. The-new textbook reinforces the functions of the introudction and checking the result of learning, and presents more and diverse learning materials and reduces the degree of learning difficulty by omitting the several abstract knowledges and mathematical formulas which can be understood through formal operational thinking. The results show that the new textbook is more effective in arousing student's interest and curiosity there fore it increases the efficiency of learning. But the new textbook is less suitable for inquiry because it is mainly composed of explanation and fact rather than experiment and observation. I think that this is the result from the actual approach to the real conditions of school when the curriculum was reformed and the new textbook was written.

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A Study of Auto Questions and Scoring System in Mobile Application (모바일 시험 자동출제 및 채점 시스템 연구)

  • Park, Jong-Youel;Park, Dea-Woo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.10a
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    • pp.173-176
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    • 2013
  • This paper's questions, and an automatic scoring system written in HTML, and XML-based system that is at issue, the issue questions in a convenient offline automatically how to register, Easy to manage questions of issues, questions and problems of merging the PC and the mobile device in a place that can be obtained without taking the test system study. Server systems, and real-time registration questions merging problem, such as difficulty adjusting to the test required to build the system. Clients communicate with the server using the mobile device and the PC is required to take the exam in the View application, and responses are sent for treatment research.

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A Study on the Traction System and Cost Calculation of the Illegal Parking Car (Centering around Bucheon City) (불법 주.정차 차량의 견인실태 및 비용산출에 관한 연구 (부천시를 중심으로))

  • 김종민;남궁호봉
    • Journal of Korean Society of Transportation
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    • v.21 no.3
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    • pp.143-156
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    • 2003
  • 도시로의 집중현상에 따라 차량이 증가함으로 한정된 공간에서의 도시교통난이 계속 악화되고 있는 실정이다. 도로상의 불법 주ㆍ정차위반차량으로 인해 차량소통에 불편을 주고, 주거 및 교통환경을 저해하기 때문에 견인업무는 주차정책을 실현시키는 강력한 수단으로써 반드시 필요하지만, 우리나라에서 불법 주ㆍ정차 차량의 견인부분에 대한 연구 및 결과는 극히 미비한 실정이다. 이에 따라 본 연구에서는 우리나라 주요 도시를 대상으로 불법 주ㆍ정차 차량의 견인운행 실태 및 특징을 비교, 견인제도의 문제점을 분석하여 개선방안을 검토하고자 하였다. 이의 내용으로는 각 시에서 추진 및 계획중인 지능형 교통체계(ITS), 버스 정보시스템(BIS) 및 차량 위치 자동 표시기(AVM)를 연계시켜 공차거리를 줄이는 등의 첨단체계를 구축하여 견인차량에 대한 운영을 효율적으로 하여야 할 것이고, 요금의 구조도 서울을 제외한 기존의 3단계 톤급별 요금구조에서 장래 대형차의 견인을 감안한 4단계의 톤급별 요금구조로의 조정방안이 필요하다. 견인비용에 있어서도 대부분의 도시가 수년전의 여건을 근거로 산출한 결과를 기준으로 요금을 징수하고 있어 현실에 맞지 않는 요금체계를 적용시키고 있는 실정이다. 따라서, 견인비용부분에 대하여도 장래의 경제여건을 감안한 탄력적 요금체계를 설정하여 경영합리화를 유도함이 바람직하다. 부가하여, 견인원가에 대한 사례분석 결과는 부천시를 중심으로 하여 현실성 있는 견인비용을 제시코자 하였다.

Mobile Auto questions and scoring system (모바일 시험 자동출제 및 채점 시스템 연구)

  • Park, Jong-Youel;Park, Dea-Woo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2014.10a
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    • pp.370-372
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    • 2014
  • This study questions, and an automatic scoring system written in HTML, and XML-based system that is at issue, the issue questions in a convenient offline automatically how to register, Easy to manage questions of issues, questions and problems of merging the PC and the mobile device in a place that can be obtained without taking the test system study. Server systems, and real-time registration questions merging problem, such as difficulty adjusting to the test required to build the system. Clients communicate with the server using the mobile device and the PC is required to take the exam in the View application, and responses are sent for treatment research.

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Computerized Multiple 15-hue tests for Quantifying Color Vision Acuity (색각 능력의 정량적 평가를 위한 전산화된 다중 15-색상 배열 검사법)

  • Ko S.T.;Hong S.C.;Choi M.J.
    • Journal of Biomedical Engineering Research
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    • v.21 no.3 s.61
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    • pp.321-331
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    • 2000
  • Multiple 15-hue tests were designed and implemented on a PC in the study so as to quickly and quantitatively evaluate color vision acuity. Difficulty of the test was control)ed by the value of CDBACC (color difference between adjacent color chips) calculated using a CIELAB formula. The multiple 15-hue tests consist of eight of the hue tests (test 3-10) and three of the basic color (red, green, blue) tests (test 11-13). The 15 colors used for the hue tests were specified by the 15 color coordinates that were located at a constant distance (d = 2. 3. 5. 7, 10, 20, 30. 40) from white reference in the CIE chromaticity coordinate system and were separated by a constant color difference (CDBACC = 0.75, 1.1, 1.8. 2.5. 3.5. 7.5. 11, 14) from the adjacent chips. The color coordinates for the 15 chips for the basic color tests were the same as those of the 15 points spaced equally by a constant color difference (6.87 for the green color test. 7.27 for the red color test, 7.86 for the blue color test) from the white reference along the axis of red, green and blue. Thirty normal subjects who were not color blind were taken to undergo the multiple 15-hue tests. It was observed that most of the subjects correctly arranged color chips for the tests with CDBACC greater than 5, whereas no one correctly answered for those with CDBACC less than 2. Rapid changes in the number of the subjects correctly arranged took place when CDBACC of the tests was between 2 and 4.5. In the basic color tests, unlike the hue tests having similar values of CDBACC, it was seen that the subjects arranged color chips even less correctly. It was found that JNCD (just noticeable color difference) - a measure of color vision acuity was about 3 in average for the subjects. The JNCD was chosen as the value of the CDBACC of the test for which about $50\%$ of the subjects failed to successfully arrange color chips. ERCCA (error rate of color chips arrangement) for the test with CDBACC the same as the JNCD was shown to be about $20\%$. It is expected that the multi 15-hue tests implemented on a PC in the study will be an economical tool to quickly and quantitatively evaluate color vision acuity and, accordingly, the tests can be used for early diagnosis to massive potential patients suffering from diseases (ex. diabetes, glaucoma) which may induce changes in color vision acuity.

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A Study on the Hardware Cost Estimation Equation of Professional Service Robot (전문서비스 로봇 하드웨어 비용추정 관계식 개발에 관한 연구)

  • Lee, Jungsoo;Min, Jeongtack;Choi, Yeon-Seo;Park, Myeongjun;Sohn, Dongseop
    • Journal of Digital Convergence
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    • v.16 no.7
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    • pp.89-96
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    • 2018
  • In this paper, we proposed a parametric estimation method for estimating H/W cost by using the development data of professional service robot in Korea. In addition, we derived the factors and weights that we can estimate the costs depending on the application environmental conditions of the robot. For the analysis, we developed the equation of professional service robot cost estimation using parametric method. We also derived the adjustment factors and following weights through FGI and Delphi for environmental conditions. We have developed a cost estimation equation that reflects the weight, volume, and manufacturing difficulty, and can derive a relational equation that reflects the environmental factors(dust/water, heat/cold, safety, test, technology innovation). This provides an objective basis for estimating the cost of professional service robots and will lead to ongoing research for estimating the H/W development cost of professional service robots. In the future, we will increase reliability by collecting abundant data, and will strengthen models through finding functional factors.

Availability Evaluation System for Remodeling of Existing Apartment Houses (기존 공동주택의 리모델링 용이성 평가 체계)

  • Cha, Woo-Cul;Lim, Byung-Wook;Shin, Chang-Hyun;Shin, Byung-Hyun;Lee, Jea-Sauk;Chun, Jae-Youl
    • Korean Journal of Construction Engineering and Management
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    • v.9 no.5
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    • pp.204-213
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    • 2008
  • Apartments production without a previous example is existed by suddenly rapid growth of population and city. So this mass producted aged Apartments have many problems that is aged and staleness. Confrontation of obsolete and staleness is Build&Scrap and Remodeling. But Remodeling is much better than Build&Scrap Because Remodeling has Social, Economical, Environmental merits. This Research is Feasibility Evaluation System on an object of Remodeling. Feasibility Evaluation means Possibility on Objective action on aiming action in other words. It means degree of difficulty about purpose to act. Remodeling is based on existing apartment, to improve ability and performance of existed aged Apartment and by engineering technique and method. A point of view, development of Remodeling technique and popularization is necessary as well as Remodeling Plan and Construction technique of applied Existing building logical Approach is that. The purpose of this paper is handling allowance range of Remodeling Plan and Achievement accomplishment Feasibility Evaluation of purpose and objective and Understanding. Remodeling Feasibility is evaluated by two aspects. The first is Macro Level Approach of Remodeling Feasibility Evaluation on a Apartment Complex, and The second is Micro Level Approach of Remodeling Feasibility on each housing part is evaluated about removal and dismantlement.

Developing Upcycled DIY Kit Made from Subway Billboard Material (지하철 광고판을 활용한 업사이클링 DIY의생활소품 키트 개발)

  • Kang, Bo Kyung;Lee, Yhe-Young
    • Journal of Korean Home Economics Education Association
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    • v.32 no.1
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    • pp.1-14
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    • 2020
  • The main purpose of this research was to develop upcycled DIY kits made from subway billboard material to make living products. This study was conducted based on the following four stages of design process: research and analyses, DIY kits' design direction establishment, completion of DIY kits, and implementation and evaluation. Through this study, we developed DIY kits for pouches, tissue cases and pencil cases. In the implementation and evaluating stage, we chose to make pouches because it includes zipper attachment process. Implementation was conducted by recruiting four high school students and four female adults. As a result, we found the following: First, the participants were able to make pouches in less than an hour. Second, pouch making has a moderate degree of difficulty. Third, video instructions should be slowed down. Forth, materials need to be improved. Fifth, environmental awareness was improved by using unfamiliar subway billboard materials. The upcycled DIY kits, developed as a result of this study, can be used as eco-friendly education sources for secondary school students as well as for adults' healing hobby.

과학영재 선발과정의 분석 및 개선안 제안 - 과학영재교육원 학생 선발과정 중심으로 -

  • Gang, Hyeon-A;Jo, Gyu-Seong;Kim, Ja-Hong
    • 한국지구과학회:학술대회논문집
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    • 2005.02a
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    • pp.239-248
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    • 2005
  • 이 논문은 과학영재교육원의 학생 선발과정을 중심으로 과학영재아 판별과정을 분석해보고, 과학영재교육원의 학생 선발과정에서 발생할 수 있는 오류를 점검하여, 이를 보완할 수 있는 개선안을 마련하고자 하는데 목적을 두고 있다. 분석결과 과학, 수학과 관련된 창의적 문제의 지필평가 성적이 선발의 가장 중요한 기준이었다. 지필평가 단계에서 지망분야에 관계없이 과학, 수학 및 창의력검사를 모두 치러야 하는 교육원에 초점을 맞추어 그 점수 활용에 있어서 발생할 수 있는 오류를 점검하였다. A 교육원의 경우 학생 선발은 다단계 평가를 원칙으로 하고 있었으며, 1단계 지필평가에서 과학, 수학, 창의력검사라는 세 과목 시험의 합산점수로서 선발하고 있었다. 이 교육원의 ○○년도 중등과정 응시자 276명을 대상으로 합격자와 불합격자의 지필평가 점수를 분석하여 과학, 수학, 창의력검사의 시행에 오류가 없었는지 점검하였다. 또 이들의 합산에 의한 선발이 의미 있는 결과를 보이는지 분석하였다. 그 결과 과학, 수학, 창의력검사의 상관도분석에서 과학은 수학 및 창의력검사와 유의미한 상관이 있었으나, 수학과 창의력검사는 독립적으로 분석되었다. 또 이들의 합산에 지원분야별 배점으로 계산한 선발은 본래의 취지, 즉 과학, 수학, 창의력에서 모두 우수한 학생을 선발하고자 하는 의도대로 진행되었으나, 판별분석 결과 합격과 불합격자 판별에서 88.1%의 정확도를 보여 다소 오류가 있었음을 발견하였다. 이는 해당년도에 출제된 문제의 난이도 및 시험 과목별 평균점수 차를 고려하지 않아 발생하는 문제로 파악되어져 원점수 대신 표준점수로 변환하여 오류를 보완할 것을 제안한다. 자체와 직접 관련되는 영역으로는 좌반구의 측두엽과 전두엽 부분이 관찰되었다. 특히 한국어 어말어미 산출시 나타나는 형태점화 양상과 관련된 대뇌영역으로 발견된 브로카 영역에서의 활성화는 어미 변환과 관련된 영역이라기보다는 산출시 관련되는 articulation, motor coordinate관련 영역으로 추정되고, 측두엽의 활성화는 형태소, 의미 관련 지식의 data base로 추정된다. 또한 우반구 전두엽 부분에서 관찰된 활성화는 억제관련 영역으로 짐작된다.러한 동물실험이 그 기초를 제공해 줄 수 있을 것이다. 또한 행동성향 및 기억의 종류에 따른 약물효과의 차이는 기억과 관련된 질병인 알츠하이머 환자에 있어 개개인에게 맞는 적절한 특징적인 치료약물이 존재할 것이라는 가능성을 제공해줄 뿐만 아니라 학습과 기억력 증진 효과를 기대해 볼 수 있을 것이라고 생각된다. 및 지역산업발전의 기획${\sim}$조정기구로서, 선진국의 지역발전기구(Regional Development Agency : RDA)인 지역전략산업기획단이 2002년도부터 산업자원부와 9개 시도에 의해 설립되어 지역네트워크의 활성화와 클러스터의 형성 촉진을 하게 되었고 2004년도에는 13개시도로 확대${\sim}$운영되고 있고, 지역특화사업(H/W)과 지역산업기술개발과제(S/W)와 함께 패케지 형태로 지원되며, 주요역할은 크게 지역산업의 정책기획 분야와 평가관리, 지역혁신역량 조사 및 DB구축 등으로 구분된다. 그중에서도 권역별, 지역별, 지역산업진흥사업 육성과 중장기 산업발전계획을 수립하기 위하여 지역혁신역량을 바탕으로 한 지역 Technol

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Contents Analysis of Basic Software Education of Non-majors Students for Problem Solving Ability Improvement - Focus on SW-oriented University in Korea - (문제해결력 향상을 위한 비전공자 소프트웨어 기초교육 내용 분석 - 국내 SW중심대학 중심으로 -)

  • Jang, Eunsill;Kim, Jaehyoun
    • Journal of Internet Computing and Services
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    • v.20 no.4
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    • pp.81-90
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    • 2019
  • Since 2015, the government has been striving to strengthen the software capabilities required for future talent through software-oriented university in Korea. In the university selected as a software-oriented university, basic software education is given to all departments such as humanities, social science, engineering, natural science, arts and the sports within the university in order to foster convergent human resources with different knowledge and software literacy. In this paper, we analyze the contents of basic software education for twenty universities selected as software-oriented universities. As a result of analysis, most of the basic software education which is carried out to the students of the non-majors students was aimed at improvement of problem solving ability centered on computational thinking for future society and improvement of convergence ability based on computer science. It uses block-based educational programming language and text-based advanced programming language to adjust the difficulty of programming contents and contents reflecting characteristics of each major. Problem-based learning, project-based learning, and discussion method were used as the teaching and learning methods for problem solving. In the future, this paper will help to establish the systematic direction for basic software education of non-majors students.