• Title/Summary/Keyword: compliance control

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Effects of Reticuloendothelial Hyperfunction on Preservation of Lung (망내계기능 항진이 폐장보존에 미치는 영향)

  • 박동식
    • Journal of Chest Surgery
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    • v.7 no.2
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    • pp.145-152
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    • 1974
  • The effect of reticuloendothelial hyperfunction on hypothermic preservation of lung was studied in dogs. In order to evaluate the viability after hemodynamic_ load in preserved isolated lung, observations were made on the rate of increase in weight, degree of edema,compliance and surface activity of lung. The results obtained as follows: l. In the group of activating of the reticuloendothelial system by injection of sodium thiosulfate intravenously before pneumonectomy and infusion of naphthionine through the pulmonary artery before hypothermic preservation of isolated lung the limit of preservation was eight hours whereas four hours in non-treated control group. 2.Therefore the method of activating of the reticuloendothelial system before and after pulmonary resection seems effective in preserving for prolonging the period of preservation of lung by means of inhibition of pulmonary edema. 3. Pulmonary surface activity is expected to be valuable as a method in evaluation of the viability of preserved lung along with compliance and rate of increase in weight of lung.

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Digital Polymer Motor

  • Lee, Sang-Won;Jongwon Kwak;Kwangmok Jung;Sunghwi Cho;Kim, Hunmo;Jaewook Jeon;Jaedo Nam;Park, Hyoukryeol
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.105.5-105
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    • 2002
  • Digital Polymer Motor (DPM) based on dielectric elastomer is presented. It includes all the supplementary parts for actuation such as micro-controller, DC-DC converter etc. DPM can be operated by itself with the program embedded and controlled via serial interface with PC. The actuator accomplishes bidirectional actuation and compliance controllability, which are important characteristics for a biomimetic artificial muscle actuator. DPM accomplish these requirements without any mechanical substitute or complicated algorithms. Its basic concepts and working principles are addressed with modeling and simulation and the compliance controllability are verified by conducting several experiments. $\textbullet$ Polymer, Dielectric, Biomimetic

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A study on peg and hole assembly using RCC

  • Kuribayashi, Katsutoshi;Kishi, Shigenobu;Ono, Toshiro
    • 제어로봇시스템학회:학술대회논문집
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    • 1989.10a
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    • pp.731-736
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    • 1989
  • RCC(Remote Center Compliance)[1][2] is a useful device for peg and hole insertion works. Two methods for smooth insertion of round peg and round hole are proposed. The idea of method 1 is to design the optimum position of the compliance center of RCC which is different from that of usual RCC in order to minimize the insertion force with the assumption of the known insertion angle. The idea of method 2 is to insert peg with rotation in order to decrease the friction coefficient between peg and hole. The two ideas are analyzed theoretically and are shown valid experimentally.

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Mini-Teleoperation system with a Force-Feedback Haptic Interface within a Virtual Environment (가상환경에서 힘 반영 촉각장치를 이용한 소형 원격조정 시스템)

  • 김대현;김영동;이현의
    • Proceedings of the KIPE Conference
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    • 1998.07a
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    • pp.116-122
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    • 1998
  • This Paper presents some of challenges of creating feedback force, through manipulation of master manipulator, allowing the user to feel objects within a virtual environment. A sense of touch for the virtual environment. A sense of touch for the virtual environments was generated by a virtual compliance control method. In theis system data communication between the master and slave, we used TCP protocol. In the experiments. A position error between the master and slave arm was about $13.56^{\circ}$ in case that the master and slave arm had not compliance properties of the virtual object, while they have the its properties the position error reduced by $2.43^{\circ}$.

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Selection of toe geometry and bushing stiffness to improve the Vehicle Handing Characteristics (차량의 조종안정성 향상을 위한 토 궤적 및 부싱 강성 선정)

  • 손정현;김광석;유완석
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.5
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    • pp.186-193
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    • 1999
  • In this paper, a full vehicle model is developed to analyze toe and camber changes due to rack height variation and compliance. The AutoDyn7 program developed in G7 project is used for the computer simulation. Steady state cornering test was done to find the understeer gradient. Imposing a pulse steer input, Frequency Response Function(FRF) of yaw rate and lateral accelerations were evaluated. To verify the stability, the rhombus using four parameters is employed. Steer characteristics were evaluated by changing the rack height and the bushing lateral stiffiness. which installed between the low control arm and the chassis.

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A study on Quality Management in Small and Medium Enterprises (강원도 중소기업 품질경영 운영 방안 사례)

  • Park Roh-Gook
    • Journal of the Korea Safety Management & Science
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    • v.8 no.1
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    • pp.131-144
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    • 2006
  • Quality system management adapted by small and medium enterprises in Kangwon province to enhance the competitiveness was studied. Variance analysis on several questionnaire answers was performed. Motives for acquiring the accreditation, such as product export, adjustment to international trend, enhancement of brand/product recognition, CEO's mind change, and management innovation, have been changed significantly among business types. Mind changes after the accreditations were setting company's first priority on quality, enhanced recognition on compliance of in-house standards and regulations, employee's performance with the recognition of quality. Amongst service problems to maintain the ace reditations were difficulties in maintaining the recognition of the company's finality management, labor increase to maintain the ISO 9000 enforcement team, and financial burden to keep the accreditation. Quality recognition after the accreditations was significantly improved in setting company's first priority on quality, enhanced recognition on compliance of in-house standards and regulations, employee's performance with the recognition of quality.

Global Trade Management Strategies for Export Companies from the Supply Chain Management Perspective (공급사슬관점에서 수출기업의 글로벌 무역관리 전략)

  • Yang, Jung-Ho
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.35
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    • pp.179-219
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    • 2007
  • Cross-border supply chains undergone complexity in the global trade process, unpredictability and continually evolving regulations and information requirements. Under these circumstances, longer lead time inhibiting quick response to market demands, unanticipated supply chain costs eroding product cost savings, compliance and documentation errors causing delays and fines are challenging global trade companies when they execute global business. These problems are mainly caused by unautomated, unintegrated process which lead to longer and more unpredictable lead times, slower cash flow, cost overruns, and ultimately lower profits and less satisfied customers. Complex and unpredictable global trade environment requires global trade companies of global trade management functions to automate and control this complex environment for driving out cost, time and risk from their business. Global trade management allows cost savings, supply chain efficiencies and improved compliance through improving global supply chain visibility, facilitating cash flow by supply chain financing, enhancing supply chain security and risk management.

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A Study on the Practical Means to Prevent Collision at Sea - Through risk management theory -

  • Lee, Ok-Yong;Grewal, Devinder;Cahoon, Stephen
    • Journal of Navigation and Port Research
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    • v.31 no.4
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    • pp.295-307
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    • 2007
  • The statistics of Korean Maritime Safety Tribunal and Japan Marine Accidents Inquiry Agency shows that the major muses of collision at sea are Improper lookout and Non-compliance with marine traffic rules. Those two muses are occupying more than 70% of collision, and it's clear that those muses are undoubtedly closely related to simple human error. In this paper we tried to find out the root muses of this kind of human error of OOWs(officers on watch) through risk identification method and studied how to tackle them via risk control theory. In conclusion, the measures studied in this paper could be applied to help OOWs avoid their own human error as well as be used in shipping company for their fleets' safety management.

Fabrication of 2.5 Gbps Burst-mode Receiver and its Full Compliance to GPON

  • Lee, Mun-Seob;Lee, Byung-Tak;Kim, Jong-Deog;Lee, Dong-Soo
    • Journal of the Optical Society of Korea
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    • v.12 no.4
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    • pp.355-358
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    • 2008
  • In the current GPON market and standard, the line bit rate requirement is changing from 1.25 Gbps to 2.5 Gbps. We fabricate a 2.5 Gbps burst-mode receiver with commercially available blocks and optimize it with an APD bias control. A burst-mode measurement setup is made for the full compliance test with the GPON standard. The device meets the partially defined 2.5 Gbps specs in the current ITU G.984.2 standard, also, supports 1.25 Gbps specs for the coexistence issue in an access network. The full-compliant measurement values can be used as a guideline for fixing "for further study" specs in the current GPON standard at 2.5 Gbps.

Design and Implementation of Paddle Type End of Arm Tool for Rescue Robot (인명 구조용 로봇의 패들형 말단 장치 설계 및 구현)

  • Kim, Hyeonjung;Lee, Ikho;An, Jinung
    • The Journal of Korea Robotics Society
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    • v.13 no.4
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    • pp.205-212
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    • 2018
  • This paper deals with the paddle type end of arm tool for rescue robot instead of rescue worker in dangerous environments such as fire, earthquake, national disaster and defense. It is equipped at the dual arm manipulator of the rescue robot to safely lift up an injured person. It consists of the paddle for lifting person, sensors for detecting insertion of person onto the paddle, sensor for measuring the tilting angle of the paddle, and mechanical compliance part for preventing incidental injuries. The electronics is comprised of the DAQ module to acquire the sensors data, the control module to treat the sensors data and to manage the errors, and the communication module to transmit the sensors data. After optimally designing the mechanical and electronical parts, we successfully made the paddle type end of arm tool and evaluated its performance by using specially designed jigs. The developed paddle type end of arm tool is going to be applied to the rescue robot for performance verification through field testing.