• Title/Summary/Keyword: Holland

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해외정보-유방형질에 대한 이해

  • Park, Sang-Chul
    • 종축개량
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    • v.9 no.12 s.58
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    • pp.114-120
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    • 2005
  • 이 내용은 Veepro Holland 8월호에 게재된 내용을 발췌하여 정리한 내용입니다. (네덜란드의 선형심사 점수범위는 1-9점이며, 등급형질에서는 점수로 표현함.)

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Artificial muscles: Non-Stoichiometry Nature, Sensing and Actuating Properties and Tactile Sensibility

  • Otero T.F.;Lopez-Cascales J.J.;Vazquez-Arenas G.
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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    • v.5B no.2
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    • pp.118-122
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    • 2005
  • Electro-chemo-mechanical devices or artificial muscles based on conducting polymers (CP) are presented as bilayers, CP/adhesive polymer, or as triple layers, CP/adhesive polymer/CP. Those soft and wet materials, working in aqueous solutions of a salt, mimic the composition of most organs from animals. Under electrochemical control, so working as new electrical machines, they produce continuous, reverse and elegant bending movements, mimicking those produce by animal muscles. By means of the current a perfect controls of the movement rate is attained giving soft and continuous movements. Muscles able to sense the chemical and mechanical conditions of work or muscle having tactile sense, as will be presented here, are being developed. All of them are founded on the non-stoichiometric nature of the soft and wet materials.

Impact of Phonon Dispersion on Thermal Conductivity Model (포논 분산이 열전달 모델에 미치는 영향)

  • Chung, Jae-Dong
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.27 no.8
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    • pp.1165-1173
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    • 2003
  • The effects of (1) phonon dispersion on thermal conductivity model and (2) differentiation of group velocity and phase velocity are examined for germanium. The results show drastic change of thermal conductivity regardless of the same relaxation time model. Also the contribution of transverse acoustic (TA) phonon and longitudinal acoustic (LA) phonon on the thermal conductivity at high temperatures is reassessed by considering more rigorous dispersion model. Holland model, which is commonly used for modeling thermal conductivity, underestimates the scattering rate for TA phonon at high frequency. This leads the conclusion that TA is dominant heat transfer mode at high temperatures. But according to the rigorous consideration of phonon dispersion, the reduction of thermal conductivity is much larger than the estimation of Holland model, thus the TA at high frequency is expected to be no more dominant heat transfer mode. Another heat transfer mechanism may exist at high temperatures. Two possible explanations we the roles of (1) Umklapp scattering of LA phonon at high frequency and (2) optical phonon.

Impact of Phonon Dispersion on Thermal Conductivity Model (Phonon Dispersion이 열전달 모델에 미치는 영향)

  • Chung, Jae-Dong
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.1627-1632
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    • 2003
  • The effect of (1) phonon dispersion in thermal conductivity model and (2) the differentiation of group velocity and phase velocity for Ge is examined. The results show drastic change of thermal conductivity regardless of using same relaxation time model. Also the contribution of transverse acoustic (TA) phonon and longitudinal acoustic (LA) phonon is changed by considering more rigorous dispersion model. Holland model underestimates the scattering rate for high frequency TA, so misleading conclusion, i.e. TA is dominant heat transfer mode at high temperature. But the actual reduction of thermal conductivity is much larger than the estimation by Holland model and high frequency TA is no more dominant heat transfer mode. Another heat transfer mechanism may exist for high temperature. Two possible explanations are (1) high frequency LA by Umklapp scattering and (2) optical phonon.

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사슴의 발정동기화 및 Ov-Sync. 방법에 따른 예정시각 인공수정 후 수태율 및 분만율

  • 이장희;김인철;이동원;류일선;박성재;서국현;김상우;유충현;정경용
    • Proceedings of the KSAR Conference
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    • 2001.10a
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    • pp.66-67
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    • 2001
  • 사슴의 예정시각 인공수정기술을 개발하기 위해 엘크 93 두에 대해 CIDR(InterAG, New Zealand)의 질내 14 일간 삽입방법으로 발정동기화처리하고 배란을 유기하기 위하여 제거시 PMSG(Folligon, Intevet, Holland) 200 IU(T₁) 또는 250 IU(T₂) 를 근육주사 한 후 60시 간에 Conceral/sup R/ 2㎖를 주사하고 인공수정 하거나, CIDR제거 후 24시간 때에 hCG(Folligon, Intevet, Holland) 500IU를 근육주사하고 12시간 후 (CIDR제거 후 36h) Receptal/sup R/ 2㎖를 주사하고 CIDR 제거 후 60 시간 때에 인공수정 (T₃) 하였으며, 수정 후 40일경에 초음파진단 (Sonovet-600, 6.5㎒ probe)으로 수태율을 조사하였다. (중략)

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A Study of the Number of Distribution Channel Levels for the Road Transportation Systems

  • Kang, Kyung-Woo
    • Proceedings of the KOR-KST Conference
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    • 1998.09a
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    • pp.91-99
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    • 1998
  • Generally, the tons lifted and ton-kilometers are widely used to analyze the road freight transport. However, these two indicators are simply to show the road freight transport statistics rather than to explain the road freight transportation systems. In this study, the variables such as the number of distribution channel levels, the integral distance, tons in transport and the average transport distance are defined and estimated to investigate the road freight transport system of Korea. In order to compare the road transport system of Korea to other countries, the comparative study was conducted including USA, Japan, Holland and Taiwan. The major findings of this study are as follows; i) The number of distribution channel levels and integral distance of Korea and Taiwan have been increased, but the average transport distance decreased from 1971 to 1996 period. ii) On the contrary to Korea case, the number of distribution channel levels and integral distance of US, Japan and Holland have been decreased, but the average transport distance increased. iii) In the time-series model analysis shows that the number of distribution channel levels are statistically positively closely related to the logistics costs and the costs of transportation as a percentage of GDP.

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A Study on The Development Methodology for Intelligent College Road Map Advice System (지능형 전공지도시스템 개발 방법론 연구)

  • Choi, Doug-Won;Cho, Kyung-Pil;Shin, Jin-Gyu
    • Journal of Intelligence and Information Systems
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    • v.11 no.3
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    • pp.57-67
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    • 2005
  • Data mining techniques enable us to generate useful information for decision support from the data sources which are generated and accumulated in the process of routine organizational management activities. College administration system is a typical example that produces a warehouse of student records as each and every student enters a college and undertakes the curricular and extracurricular activities. So far, these data have been utilized to a very limited student service purposes, such as issuance of transcripts, graduation evaluation, GPA calculation, etc. In this paper, we utilized Holland career search test results, TOEIC score, course work list and GPA score as the input for data mining, and we were able to generate knowledge and rules with regard to the college road map advisory service. Factor analysis and AHP(Analytic Hierarchy Process) were the primary techniques deployed in the data mining process. Since these data mining techniques are very powerful in processing and discovering useful knowledge and information from large scale student databases, we can expect a highly sophisticated student advisory knowledge and services which may not be obtained from the human student advice experts.

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A Study on Searching Possibility of Career Counseling through Meungri-Saju Analysis, Wealthy Structures, Deawoon, Saewoon for Failed Self-employeed (폐업한 자영업자의 재성과 대운·세운분석을 통한 진로상담 가능성 탐색)

  • Ha, Eun-Hee;Kim, Sung-Bong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.10
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    • pp.64-73
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    • 2018
  • The main purpose of this study is to assess the effectiveness of Meungri-Saju analysis concerning career counseling. Initially, we searched for 'fortune quality' of self-employed people whose works went out of business., We investigated what was weak or strong of 'fortune qaulity' because it gives you interests and talents as Holland says, and then we checked their one-year and 10-year personal circumstances, so called Saewoon, Deawoon that implies your own private circumstances as Super says. In addition to this, we exmained Woulgi because it predicts condition of change of the jobs. Study results were as follows: There were failed businesses that had serious weaknesses in wealth structures. In addition, Saewoon, Deawoon were terrible conditions because of Yongshin' Hap, Hyung, Chung. This study concluded that they had to be gone out of business. It is clear that you should check your wealth structure and Saewoon, Deawoon when you open your business. This study concludes that Meungri-Saju analysis is effective as a new model of career counseling.