• 제목/요약/키워드: New technology

검색결과 30,067건 처리시간 0.053초

비슬산 진달래군락지의 생육활성화 방안 (Management Methods on the Growth Activation of Rhododendron mucronulatum Habitat in Mt. Biseul)

  • 박인환;조광진
    • 한국환경복원기술학회지
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    • 제16권2호
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    • pp.105-114
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    • 2013
  • This study was carried out to find growth increasing methods of Rhododendron mucronulatum in Mt. Biseul. 4 treatments(heavy pruning, light pruning, non-pruning+fertilization, non-pruning(control)) were used in the study area with different pruning methods. Growth characteristics of new shoot, number of creation of flower buds and leaf buds in new shoot were analysed. Significant differences were observed among the treatments and stem diameter degree. Diameter, length of new shoots and the number of flower buds, leaf buds per new shoots increased in the pruning treatments. But heavy pruning showed more effective growth increasing way than light pruning. Non-pruning and fertilization treatments were not effective to increase growth of Rhododendron mucronulatum. And pruning at the end of May was the most effective way for growth of new shoot.

Effectiveness of an Exponentially Smoothed Ordering Policy as Compared with Kanban System

  • Tamura, Takayoshi;Dhakar, Tej S.;Ohno, Katsuhisa
    • 대한산업공학회지
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    • 제34권1호
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    • pp.1-12
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    • 2008
  • The Kanban system in Just-In-Time (JIT) production is very effective in reducing the inventories when consumption rate of the final product is relatively stable. When large fluctuations exist in the consumption rate, a new production ordering policy in which the production order quantity is determined by smoothing the demands exponentially is more suitable. This new ordering policy has not been investigated sufficiently. In this research, a multi-stage production and inventory system with stock points for materials and finished items located at each stage is considered. Approximations of average inventories at each stage in the system are derived theoretically. Numerical simulations are carried out to assess the accuracy of approximations and to evaluate the effectiveness of the new ordering policy as compared with the Kanban system. As a result, it is shown that the new ordering policy can achieve significantly lower inventory costs than the original Kanban system. The new ordering policy thus emerges as a key concept for an effective supply chain management.

(포항)냉연 New AGC 적용기술 (Application of New AGC to the Cold Rolling Mills of Pohand Works)

  • 김철종;이동섭;박남수
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
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    • pp.150-157
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    • 1999
  • As the customer demands thickness quality stricter, new techniques of automatic thickness control(AGC), is adopted to continuous cold rolling mills. The cold rolling mills of Pohang Works have revamped the existing conventional AGC system that control the thickness at all-stands automatically by the mass flow AGC based on the measurement of strip-speed and thickness between mill stands. The No. 2 Cold Rolling Mill be has adopted the New AGC system since Oct. 1995, and The No.1 Cold Rolling Mill since June. 1999. Thanks to the New AGC system, precise control of thickness is possible not only at constant rolling speed region, but also during line speed up and down. This report describes application techniques of the New AGC system and performance of the system.

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새로운 과학기술정책 패러다임 모색과 정책방향: 양에서 질적 발전으로

  • 채영복;조현대
    • 기술혁신연구
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    • 제10권1호
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    • pp.1-21
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    • 2002
  • This paper suggests a new paradigm of science and technology (S&T) policy for the purpose of the new national development that pursues not the scale expansion of a industrial production but the qualitative enhancement of industrial and S&T comparativeness. The new S&T policy paradigm includes new policy directions such as the density increasement of high quality- brain power and the energy supply for crossing the threshold from imitative R&D to creative R&D. Also, this paper argues that it is necessary not only to acquire the support of the local S&T community and policy-makers on the new S&T policy paradigm, but also to develop and implement policy measures in details on the basis of the new paradigm suggested by the paper.

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Determinants of the adoption of new equipment at the individual level within an organization

  • Kim, Hye-Kyoung;Lee, Seung-Hee
    • 디지털융복합연구
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    • 제9권1호
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    • pp.37-49
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    • 2011
  • The purpose of this study is to develop a new equipment acceptance model in the industrial market and test it empirically using a field survey. To define new equipment acceptance factors of employees in the organization, we used the TAM as a useful model to analyze the acceptance process of new equipment. All of the data for the TAM were collected from the employees. Prior research studied the usage of general information technology using a computer and particular software, while we apply the TAM to the new equipment adoption. In this study, both theoretical review and empirical study were conducted and the model was set through the theoretical study which was tested through the empirical analysis. Management support and training/education were shown to have a positive effect on PU and PEOU. Personal innovativeness, management support, perceived usefulness and perceived ease of use were shown to have a positive effect on behavioral intention.

A Comparative Study on the Characteristics of Interactivity between Virtual Reality (VR) and Interactive Cinema

  • Jeong, Da-Hee
    • Journal of Multimedia Information System
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    • 제8권3호
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    • pp.167-174
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    • 2021
  • This paper compares VR cinema with interactive cinema from an interactive perspective to examine cinemas as a new medium. Rather than revealing the difference through this, the focus is on presenting a methodology that understands the cinema in a new environment that is now standing at the starting point. The development of video technology is changing not only the external elements of content but also the internal storytelling method, but the lack of killer content has always been pointed out as a problem compared to the remarkable development of technology. Therefore, it is necessary to specify the characteristics and types of interactions represented by VR (virtual reality) and new media represented by interactive media and to present directions. Therefore, the types and characteristics of interactions were compared with VR film produced in line with the new phenomenon and interactive film . Through this, we would like to present the meaning and value of the new film format from a media perspective.

Overview of the Current Status of Technical Development for a Highly Scalable, High-Speed, Non-Volatile Phase-Change Memory

  • Lee, Su-Youn;Jeong, Jeung-Hyun;Cheong, Byung-Ki
    • JSTS:Journal of Semiconductor Technology and Science
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    • 제8권1호
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    • pp.1-10
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    • 2008
  • The present status of technical development of a highly scalable, high-speed non-volatile PCM is overviewed. Major technical challenges are described along with solutions that are being pursued in terms of innovative device structures and fabrication technologies, new phase change materials, and new memory schemes.

Quantitative structure-activity relationships (QSAR) on use of multi-valued AND/OR networks

  • Aoyama, Tomoo;Nagashima, Umpei
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2002년도 ICCAS
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    • pp.89.5-89
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    • 2002
  • The technology to predict new chemical compounds by using properties of already known compounds is a kind of data mining and an important technology in chemical industrial fields. Many knowledge have been accumulated in the fields, and especially nowadays in the field of medicine development industry, the technology is connected with the post genome technology, and generates a new conception, physiome. The word is defined as followings. It is the quantitative and integrated description of the functional behavior of the physiological state of an individual or species. The physiome describes the physiological of the normal intact organism and is built on information and structure, that is geno...

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A Study on Production Technology of PET Spun Yarn and Fabric Development by Using Spinning and Texturing Technologies

  • Sim, Seung-Bum
    • 한국염색가공학회:학술대회논문집
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    • 한국염색가공학회 2009년도 학술발표대회
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    • pp.227-228
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    • 2009
  • This study was performed to develop a new PET yarn having the new appearance and touch effect of polyester (PET) yarn, using spinning and texturing technologies. The spinning technology is the manufacturing technology resulting in the denier difference in yarn filaments, and the texturing technology is the texturing conditions leading to spun yarn effects, using the filaments from the spinning processing.

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A new era for the Journal of Animal Science and Technology

  • Choi, Inho
    • Journal of Animal Science and Technology
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    • 제56권1호
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    • pp.1.1-1.2
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    • 2014
  • We anticipate that this new alliance between The Korean Society of Animal Science and Technology and BioMed Central will elevate our journal one step higher, and facilitate easier access for those overseas as well as domestic researchers, who in turn will support us to contribute updated research outcomes in this field. We cordially invite all of you to participate and submit the results of your research so that everyone can learn and strive towards the goals that we all share.