• Title/Summary/Keyword: transferring

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The Relationship Between Stomatal Opening and Photosynthetic Activity of the Mesophyll in Commelina Communis L.

  • Lee, Joon-Sang
    • Journal of Environmental Science International
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    • v.15 no.12
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    • pp.1109-1117
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    • 2006
  • To investigate the influence of the mesophyll cells on stomatal opening in response to white light, the segments of isolated epidermis were transferred on partly exposed mesophyll cells of a leaf and stomatal apertures were measured. Transferring the isolated epidermis on partly exposed mesophyll cells of a leaf caused a marked increase on stomatal apertures while stomata in isolated epidermis incubated in MES buffer hardly opened. Mesophyll infiltration with photosynthetic inhibitors (DCMU, DCCD, $NaN_3$) was performed to elucidate the correlation between stomatal apertures and the degree of photosynthetic activity. It was found that transferring the isolated epidermis on partly exposed mesophyll cells of a leaf caused an increase of stomatal apertures depending on the degree of photosynthetic activities. In $NaN_3$ infiltrated leaf discs, transferring the fresh isolated epidermis on partly exposed mesophyll cells of a leaf showed no significant effect, but a slight increase on stomatal apertures. Isolated epidermis alone did not respond to the light properly, but if it was closely contacted with mesophyil cells, the stomata regained the ability of the light response. Therefore, it could be suggested that stomatai apertures were related with the degree of photosynthetic activity in the mesophyll cells.

Analysis on Torques of Shoulder and Elbow Joints of Humanoid Robot Arm for Lifting Tasks (리프팅 작업을 위한 인간형 로봇 팔의 어깨와 팔꿈치 관절 토오크 분석)

  • Kim, Byoung-Ho
    • Journal of the Korean Institute of Intelligent Systems
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    • v.25 no.3
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    • pp.223-228
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    • 2015
  • This paper analyses the torque characteristics of the shoulder and elbow joints of a humanoid robot arm that is useful for an object lifting and transferring task instead of human beings. For the purpose, some typical human lifting behaviors are considered, and various simulations for lifting and transferring an object have been performed by employing a humanoid robot arm having a simple configuration of shoulder and elbow joints. Through the simulation, it is shown that the torque patterns and ranges of the shoulder and elbow joints required for such a humanoid lifting and transferring task can be found earlier in the design of a humanoid robot arm. As a result, this effort is useful for us to design an effective robot arm.

실시간 멀티미디어 전송을 위한 RTP 기반 그룹 전송 지연 제어기법

  • 심영식;양종운;정규수;나인호
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.05a
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    • pp.189-194
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    • 2002
  • It is thesis that based on for Croup-Transferring a method of Transferring-Control during real-time. By the development of multimedia, spread of high-speed communication network and generalization of various multimedia services, various techniques an studied by requiring application services for multi-users (meeting-service, remote-service, broadcasting-service, education-service and so on). So we focused on the multimedia group transferring techniques except communication network techniques and multimedia processing techniques, and presented algorithms about a mettled of group-management, a method of delay-control-management that analyzed a effective method of Croup-Control and characters of each group network and used RTP(Real-Time Protocol) / RTCP(Real-Time Control Protocol).

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Development of the Linear Piston Pump Driven by the Hydraulic Power for the Solid Transferring (고형물 이송을 위한 유압구동 선형 피스톤 펌프의 개발)

  • Kim, Bong-Hwan;Ahn, Kook-Chan;Chung, Sung-Won;Kim, Young-Hoon
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.8 no.3
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    • pp.82-89
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    • 2009
  • The purpose of this study is to investigate the actual field application of the linear piston pump for the solid transferring driven by the hydraulic power unit. In this paper, the numerical analysis and performance evaluating experiments were performed. CFX program has been used to obtain the solutions for the problems of three-dimensional, turbulent water flow in the linear piston pump. The velocity and the pressure distributions are obtained using the turbulent $k-\varepsilon$ model. To evaluate the performance of the linear piston pump, the performance test stand and data acquisition system were manufactured. The numerical predictions agree favorably with experimental results within 7% error. Speed of the piston which is satisfied the flow rate 3,000l/min which considers from basic design became 0.33m/s. This paper could be applied to the design of the linear piston pump for the fish transferring.

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A Study on Development of Guidelines for Transferring Electronic Records (전자 기록물 이관 절차 개발에 관한 연구)

  • Oh, Sam-Gyun;Kim, Hee-Sop;Oh, Sang-Hoon;Kwon, Do-Yun;Won, Sun-Min
    • Journal of the Korean Society for Library and Information Science
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    • v.42 no.4
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    • pp.441-461
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    • 2008
  • The study aims at providing a practical, rather then conceptual, guideline for transferring electronic records for the purpose of applicable to the archives in Korea. To achieve this purpose the study analyzed ISO, AHDS, and CCSDS transfer guidelines, examined requirements for transferring records in one Korean government agency as a testbed, and finally developed a proposed guideline for e-records transfer that is suitable for Korea settings. The study is deemed significant in that the proposed guideline is derived from a case study and analysis of major transfer guidelines available.

Towards a Student-centred Approach to Translation Teaching

  • Almanna, Ali;Lazim, Hashim
    • Cross-Cultural Studies
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    • v.36
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    • pp.241-270
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    • 2014
  • The aim of this article is to review the traditional methodologies of teaching translation that concentrate on text-typologies and, as an alternative, to propose an eclectic multi-componential approach that involves a set of interdisciplinary skills with a view to improving the trainee translators' competences and skills. To this end, three approaches, namely a minimalist approach, a pre-transferring adjustment approach and a revision vs. editing approach are proposed to shift the focus of attention from teacher-centred approaches towards student-centred approaches. It has been shown that translator training programmes need to focus on improving the trainee translators' competences and skills, such as training them how to produce and select among the different versions they produce by themselves with justified confidence as quickly as they can (minimalist approach), adjust the original text semantically, syntactically and/or textually in a way that the source text supplely accommodates itself in the linguistic system of the target language (pre-transferring adjustment), and revise and edit others' translations. As the validity of the approach proposed relies partially on instructors' competences and skills in teaching translation, universities, particularly in the Arab world, need to invest in recruiting expert practitioners instead of depending mainly on bilingual teachers to teach translation.

A Study on the Method of Transferring Metal Specimens for Real-time Transmission Electron Microscopy using Ultrasonic Treatment (초음파 처리 활용 실시간 투과전자현미경 관찰용 금속 시편 전사 방법에 관한 연구)

  • H. Kim
    • Transactions of Materials Processing
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    • v.33 no.2
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    • pp.118-122
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    • 2024
  • Micro-electromechanical systems (MEMS) based in-situ heating holders have been developed to enable high resolution imaging of heat treatment analysis. However, unlike the standard 3 mm metal disk specimens used in the furnace-based heating holder and general transmission electron microscopy holder, the MEMS-based in-situ heating holder requires thin specimens that can be penetrated by electrons to be transferred onto the MEMS chip. Previously, focused ion beam milling was used to transfer metal specimens, but it has the disadvantage of being expensive and the risk of specimen damage due to gallium ions. Therefore, in this study, we devised a method of transferring metallic materials by ultrasonic treatment using a transmission electron microscopy specimen made by electro jet polishing. A 3mm electropolished metal disk was placed in an appropriate solution, ultrasonicated, and then drop casted. The transfer of the specimen was successful, but it was confirmed that dislocations were formed inside the specimen due to ultrasonic treatment. This study provides a novel method for transferring metallic materials onto MEMS chips, which is cost-effective and less gallium ion damaging to the specimen. The results of this study can be used to improve the efficiency of heat treatment analysis using MEMS-based in-situ heating holders.

Policy Evaluation with System Thinking on Deconcentration Policy of the Participatory Government (시스템사고를 통한 참여정부의 지방분산정책에 대한 평가)

  • Choi, Nam-Hee
    • Korean System Dynamics Review
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    • v.8 no.2
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    • pp.275-294
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    • 2007
  • The Roh administration, participatory government, has pursued deconcentration policies for promoting the balanced national development since 2002. The main policy instrument of the deconcentration policy is that the transferring of public institutions from capital region to local areas. However, it has been argued that these policies have resulted in another problems of policy side-effects, for instance, decreasing the national competitiveness. This paper aims to explore the problems of side-effects of deconcentration policies based on the Systems Thinking approach. On the Systems Thinking approach basis, this paper analysed the policy side-effects placed the focus on intended feedback loops and unintended feedback loops of the deconcentration policies.

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An Experimental and Numerical Analysis of Flow of Electromagnetic Pump for Molted Metal Transport (용융금속 이송용 전자기 펌프의 유동해석 및 실험)

  • Choi, Jae-Ho;Lim, Hyo-Jae;Kim, Chang-Eob;Kwon, Jung-Tae
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.2621-2625
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    • 2007
  • This study aims at analyzing the flow characteristics of the electromagnetic pump using a linear induction motor (LIM) for transferring molten metals. The flow characteristics of the pump are simulated by magnetohydrodynamic(MHD) program. In this system, the LIM is used for transferring molten metal by electromagnetic force. The molten metal is treated as the secondary part of the LIM. Since the LIM produces an electromagnetic force in the duct, the molten metal can flow from the furnace to the reservoir. The flow characteristics of the pump are analyzed using MHD program for magnetic field of 0.1[T] in duct. In order to prove the analysis, we made a prototype electromagnetic pump using LIM.

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