• 제목/요약/키워드: Directed Technical Change

검색결과 12건 처리시간 0.019초

International Trade and Directed Technical Change in Developing Countries

  • KIM, MINHO
    • KDI Journal of Economic Policy
    • /
    • 제41권3호
    • /
    • pp.77-96
    • /
    • 2019
  • This paper examines the relation between the skill premium and international trade given differences in the relative supply of skills across countries while allowing the South (developing countries) to develop its appropriate technology. Typical assumptions put forward in the literature state that either technology is exogenously given, or technical change is allowed only in the North (developed countries). I present a model of international trade with endogenous growth by allowing the South to direct its technology. The results show that more R&D is directed towards skill-augmenting technology in the North than in the South, in sectors with the same skill-intensity. Technical change induced by lowering trade costs can increase the skill premium in both the North and the South. This result can explain the empirical observation that the skill premium has increased within many developing countries after they experienced trade liberalization. Finally, the model predicts larger gains from trade compared with the model where technical change is either not allowed, or allowed only in the North.

The Role of Vibrational Coherency in Ultrafast Reaction Dynamics of PYP

  • Chosrowjan, Haik;Mataga, Noboru;Taniguchi, Seiji;Shibata, Yutaka;Hamada, Norio;Tokunaga, Fumio;Imamoto, Yasushi;Kataoka, Mikio
    • Journal of Photoscience
    • /
    • 제9권2호
    • /
    • pp.122-125
    • /
    • 2002
  • Coherent oscillations in is fluorescence dynamics of W.-t. PYP and its site-directed mutants have been observed. Two oscillatory modes coupled with the ultrafast fluorescence due to the twisting of the excited chromophore were identified, a high ftequency mode (∼135 cm$\^$-1/) with ∼550 is damping time and a low frequency overdamped mode (-45 cm$\^$-1/) with ∼250 is damping time, respectively. Both modes disappear in the fluorescence dynamics of denatured PYP emphasizing the important role of the protein nanospace as the environment for photoreaction. The qualitative picture of fluorescence dynamics in site-directed mutants was rather similar to that in W.-t. PYP, i.e., similar oscillatory modes (∼130-140 cm$\^$-1/ and ∼40-70 cm$\^$-1/) have been observed. This indicates that the vibrational modes and electron-vibration couplings do not change dramatically due to the mutation though the damping time of low frequency mode a little decreases as the protein nanospace structure becomes looser and more disordered by mutation. On the other hand, in the case of some PYP analogues, the qualitative picture of fluorescence dynamics changes, showing the familiar picture of solvation effect whereas the oscillations are almost damped. Comparative analyses of these observations are presented.

  • PDF

축직각 표면타원균열이 존재하는 매설배관의 축방향응력에대한 건전성 평가 (Reliability Assessment of Buried Pipelines with a Circumferential Surface Elliptical Crack under Axial Stress)

  • 이억섭;황인현
    • 한국정밀공학회지
    • /
    • 제18권4호
    • /
    • pp.160-166
    • /
    • 2001
  • The theoretical analyses for stresses induced in axial direction in the buried pipelines are reviewed. The influences of the axially directed stresses on the surface elliptical crack are studied in detail and thus some engineering technical informations are provided to use reliability assessment of buried pipelines. The change in temperature, the effect of inner pressure and soil friction in the buried pipeline constrained in axial direction are included to determine the axial stresses in the buried pipeline. Furthermore, the stress induced by the pipeline bending are also considered. The stress intensity factors calculated by two models such as a simple plane crack and an elliptical surface crack for a circumferential surface elliptical crack are compared.

  • PDF

축직각 표면타원균열이 존재하는 매석배관의 축방향응력에 대한 건전성 평가 (Reliability Assessment of Buried Pipelines with a Circumferential Surface Elliptical Crack under Axial Stress)

  • 이억섭;황인현
    • 한국정밀공학회:학술대회논문집
    • /
    • 한국정밀공학회 2000년도 추계학술대회 논문집
    • /
    • pp.417-420
    • /
    • 2000
  • The theoretical analyses for stresses induced in axial direction in the buried pipelines are reviewed. The influences of the axially directed stresses on the surface elliptical crack are studied in detail and thus some engineering technical informations are provided to use reliability assessment of buried pipelines. The change in temperature, the effect of inner pressure and soil friction in the buried pipeline constrained in axial direction are included to determine the axial stresses in the buried pipeline. Furthermore, the stress induced by the pipeline bending are also considered. The stress intensity factors calculated by two models such as a simple plane crack and an elliptical surface crack for a circumferential surface elliptical crack are compared.

  • PDF

임상실기의 재인식과 실기모델 제안 (Recognition of Clinical Practice and Suggestion of Practical Framework)

  • 김태윤;김상수
    • 대한물리치료과학회지
    • /
    • 제17권3_4호
    • /
    • pp.11-21
    • /
    • 2010
  • Purpose: To Provide 3 main principles that needs to be changed for clinical practice and suggest the frame of clinical practice in accordance with the change of generation. Methods: We reviewed literatures related with Clinical Practice. Results: The purpose of physical therapy is to maintain the client's motor and functional ability and enhance the quality of lifestyle. To carry out the principles of clinical practice effectively all the physical therapist must be able to comprehend as follows. First, physical therapy can be different generation by generation. Second, technical terminology must be used when communicate. Third, There are certain ways of process in physical therapy. Conclusion: Physical therapist that is heath care professional occupation in health related, is in need of constant endeavor. Also physical therapist must train oneself self-directed learning.

  • PDF

Fun 요소의 디자인 사례와 가구 적용에 관한 연구 (A Study on the Cases of Fun Elements Designing and the Application to Furniture)

  • 유도현;윤여항
    • 한국가구학회지
    • /
    • 제20권2호
    • /
    • pp.105-114
    • /
    • 2009
  • Recently, as living of people becomes economically liberal, people's interests are being directed to enjoying leisure and finding fun. The design area is not exceptional from this change and thus fun elements are working as important purchase factors when people are purchasing goods in addition to intrinsic uses of the goods. Along with the development of cutting-edge technologies, other manufacturing industries like electronics, automobiles etc are swiftly responding to this trend, but the furniture industry that has been perceived as a relatively low technical industry is not at all prepared for this trend. Here, this thesis is to suggest a direction for our furniture industry to go by proposing many potentials to apply fun elements to furniture through surveys of design cases addressing fun in other areas. The surveys made in this study are largely divided into the fun in the aspect of perception and the fun in the aspect of awareness. First, the fun in the aspect of perception of furniture can be experienced through the assembling of D. I. Y. furniture and this requires studies and efforts of developers in order to enable people to enjoy the processes of assembling as a sort of 'play' without feeling a burden in the processes of assembling. Second, the fun in the aspect of awareness of furniture can be created by boldly introducing new technologies and materials from other industrials and this includes adding other functions than the intrinsic use of furniture such as containing things.

  • PDF

STEAM 프로그램이 초등영재학생의 과학적 의사소통능력과 학습몰입에 미치는 영향 (The Effects of STEAM Program on the Scientific Communication Skills and the Learning Flow of Elementary Gifted Students)

  • 박애리나;김용권
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제33권3호
    • /
    • pp.439-452
    • /
    • 2014
  • The purpose of this study is to find out the effect of STEAM program on the scientific communication skills and the learning flow of elementary gifted students. The main findings of this study are as follows: First, STEAM program that mathematical, technical, engineering and art factors were combined based on basic concepts of science were developed. Seconds, the change in the scientific communication skills of experimental group applying STEAM program had statistically meaningful difference (p<.05). Third, the flow of experimental class improved, but it had no meaningful difference statistically (p>.05). But it is expected that continuing level adjusted STEAM program might have positive effect on improving the flow with the following three reasons: 1) The gifted students' flow level on learning before experiment was rather too high to expect short term effect. 2) It was hard for them to achieve flow experience because topic difficulties and students' capacities were not balanced. 3) topic commitments and autotelic behaviors of gifted students were observed during classes. Fourth, by the result of the student satisfaction questionnaire survey on this program, students actively participated in the STEAM program with interest and curiosity. As achieved self-directed problem solving, versatile communication activities and success experiences, their class satisfaction was high. Based on such results, it was expected that the gifted class applied of STEAM program could enhance scientific communication capacity of the elementary gifted students and would further positively influence flow of learning as well. In addition, it was considered to have integrated approach value to elementary gifted and talented education in the aspect that it could satisfy various educational demands of gifted students.

건설계열 측량교과에서 활용할 모듈 기반의 TAI 모형 적용 교수-학습 과정안 개발 - 전문교과 성취평가제를 적용하여 (Development of teaching-learning lesson plan untilizing TAI model based on module, used in survey subject of construction department - By applying standard-based assessment system for technical subject)

  • 이주민;장영일;박완신
    • 대한공업교육학회지
    • /
    • 제38권2호
    • /
    • pp.89-113
    • /
    • 2013
  • 본 연구에서는 미래 인력 수요 변화에 대하여 효율적 효과적으로 신속 대응하기 위해 가장 기본적으로 갖추어야할 학습자의 태도로 자발적으로 학습에 임할 수 있는 자세를 길러야 한다는 점에 주안점을 갖고 시작하였다. 이를 위해 어떤 외부적인 요인보다 자기학습능력 신장과 지속적인 학습동기 및 의지를 가질 수 있는 적절한 교수-학습 방법의 고안의 필요성과 특성화 고등학교에서 발생되는 여러 가지 수업관련 문제점들을 해결할 수 있는 수업 전략으로 모듈기반의 팀 보조 개별학습(이하, TAI) 모형을 적용하였다. 이를 통해 학습자의 흥미를 이끌어 내고, 학습 지속력을 높여보고자 하였다. 본 연구를 통하여 얻을 수 있는 결론은 다음과 같다. 첫째, 학습 단원을 모듈식으로 구조화하여 학습단계를 진행함으로써 학습적응 능력이 향상되었다. 성취기준(학습목표)은 교과 특성상 실무 현장과 교과 간 연계를 고려하여 교재를 분석하고 재구성하여 모듈식으로 구조화함으로써 모듈식 학습단계의 과정을 통해 단원의 특성 파악과 학습 적응 능력이 향상되었다. 둘째, 모듈 기반의 TAI 모형 적용을 통하여 자기주도적 학습능력과 현장 적응능력의 향상을 가져왔다. 모듈식 학습 방법을 적용하여 종래의 수동적인 학습 환경에서 벗어나 보다 능동적으로 학습하는 자기주도학습을 할 수 있었으며, TAI 모형과 협동학습의 접목으로 함께하는 수업에서의 흥미와 성취감, 자신감과 공동체 의식, 그리고 사고의 폭을 넓히는 계기를 갖게 되었다. 특히 자신감의 향상은 단순 기능 및 지식의 습득에서 벗어나 산업사회에서 요구되는 능력과 새로운 환경에 적응할 수 있는 능력을 길러주는데 효과적이다. 셋째, 산업현장과 관련된 보다 현장 중심적인 과제를 해결함으로써, 측량실기능력 향상뿐만 아니라 다양한 경험을 통하여 과제를 발견하고 해결하는 등 부가적인 능력 또한 신장되었다. 나아가 학생 스스로 자신의 생애와 학습에 대한 관심과 동기를 일으키고 새로운 지식과 기술이 급격하게 변화하는 직업세계에 적응할 수 있는 자질과 능력을 길러내는데 도움이 되었다. 넷째, 2012년부터 도입된 전문교과 성취평가제를 학습지도안 모형 구안에 적용하여, 보다 명료하고 객관화된 평가기준을 마련하였으며, 성취수준별 지도를 통해 개별적인 학습이 가능하도록 구상하였다. 이는 모둠별 협동학습의 단점을 보완하여 학습자 개인의 성취수준을 높이고, 일정 수준의 성취목표에 도달하는데 도움이 되었다.

한국과 중국 간호교육체제의 비교 연구 (Comparative Study of the Nursing Education Systems In China and South Korea)

  • 이춘옥
    • 대한간호학회지
    • /
    • 제30권1호
    • /
    • pp.39-46
    • /
    • 2000
  • This study, was done to compare the nursing education systems of China and South Korea (Korea), then, on the basis of this comparison, to examine the direction of nursing education in China. The results the study are as follows : 1. Nursing education in Korea was influenced by social change, political policy, but as it was established, nurses in Korea, were able actively involved in presenting nursing education development proposals to the government, and in developing nursing education through their own efforts. Nursing education in China developed through the political policy of a socialist Country. During the period of modernization after 1977, a nursing education developed very quickly, In 1983, the first baccalaureate nursing education program was established and, in 1992, the first masters program was opened. 2. In Korea, there are two nursing education systems; diploma and baccalaureate, and there is only one entry level, high school graduation. In China today, on the other hand, there are three types of nursing education systems; technical, diploma, and baccalaureate, and they have middle school and high school graduation as the two levels of entry. 3. There are similarities between China and Korea in curriculums for nursing education which include the major nursing concepts. But in descriptions of the education objectives, China the emphasis is on training the 'expert' in clinical nursing which is not consistent with their educational philosophy. Korea differs from China in that the focus is on training for 'multiple ability' to be used in both clinical and community environments. 4. In Korea, the curriculum is organized with the theoretical and clinical experience combined. The curriculum is oriented to the life cycle and human developmental process. In China, however, the curriculum is organized so that after finishing the theoretical part of the curriculum, the students begin a one year intensive field experience in which the major clinical field is the hospital, and the focus is on disease oriented care and research ability. 5. In order for nurses to be proposed to address nursing education system needs follows : to change as The new nursing education system should be baccalaureate education in order to improve the education level in all nursing education programs, to develop doctoral programs, to open nurse specialist programs, and to develop a new curriculum based nursing philosophy and health delivery system change. New nursing curriculum for health care in China in the 21st century should be directed by a framework based on nursing philosophy, objectives and nursing content. In conclusion, the study will contribute China nursing education system revolution for policy develop and curriculum research. According to these results, in the future, nurses in China should be more actively involved in research and in a nursing education revolution, Also they should be involved in building information networks and in developing long term projects in nursing education.

  • PDF

Fourth industrial revolution of Women's University Students and change of intelligent information technology

  • Hwang, Eui-Chul
    • 한국컴퓨터정보학회논문지
    • /
    • 제24권11호
    • /
    • pp.235-243
    • /
    • 2019
  • 대학들이 기업체가 요구하는 문제해결 능력을 갖춘 인재를 양성하기 위하여 관련 전공 및 교과목을 개설하고 있다. 빠른 기술발전이 융복합인 인재를 요구되는 시대가 도래 한 것이다. 본 연구에서는 여자대학생들의 4차 산업혁명과 지능정보화 기술 인식 변화를 파악하고 대처하기 위해 3년간(2017년~2019년) 설문조사 결과를 분석하였다. 첫째, 4차 산업혁명에 대한 관심도는 2017년 59%에서 2019년에는 80%로 증가. 둘째, 기술 전략의 우선순위로 사물인터넷(IoT)과 정보통신, 인공지능, 교육연구 시스템 혁신. 셋째, 핵심 키워드는 인공지능(A.I), ROBOT, JOB, 넷째, 과학기술분야의 기회와 일자리 증가에 대한 예측으로는 50%. 다섯째, 대학 역할의 중요성은 50%, 기업의 역할은 80%로 기업의 역할이 더 높다. 여섯째, 과학기술에 필요한 정보로는 교육훈련정보, 미래사회변화, 유망미래정보, 일곱째, 가장 필요한 교육으로는 창의력교육, 코딩교육, 융합교육, 공학 순이었다. 4차 산업혁명 시대는 다방면에 걸쳐 SW 인력 기반을 확충하는 것이 필수적이다. 초융합을 위한 연결성을 제공해야 하는 대학교육은 융합과 연계교육, 창의적인 사고, 자기 주도적 문제해결 등 산업 수요에 최적화된 커리큘럼을 제공해야 한다.