• Title/Summary/Keyword: flexible working

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Preparation of ITO Transparent Conductive thin film for Display at Room Temperature (디스플레이용 ITO 투명전도막의 저온 제작)

  • Kim Kyung-Hwan;Kim Hyun-Woong
    • Journal of the Semiconductor & Display Technology
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    • v.4 no.4 s.13
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    • pp.5-8
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    • 2005
  • In this study, we prepared the ITO thin film for TOLED(Top-emitting OLED) or flexible display at room temperature using the FTS(Facing Targets Sputtering Apparatus). We observed characteristics of deposited thin films as a function of sputtering conditions. XRD patterns were independence trom oxygen gas flow and input current. But electrical and optical properties were strongly dependence. In the results, we could prepare good properties of ITO thin films resistivity of $4.27X10^{-4}[\Omega-cm]$, transmittance of over 80% at working gas pressure 1[mTorr], input current 0.6[A], oxygen gas ratio 0.3[sccm], at room temperature.

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Strategies to Activate Primary Health Care for Low-income Population in Urban Area (도시 저소득층주민을 위한 일차보건의료 활성화 방안)

  • Han Myung Hwa
    • Journal of Korean Public Health Nursing
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    • v.13 no.1
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    • pp.77-87
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    • 1999
  • Poverty directly affects health and well-being, The poor population has a higher rate of chronics illness. higher infant morbidity and motality rates. shorter life expectancy. more complex health problems. and greater physical limitations resulting from chronic disease. In order to activate primary health care for the poverty in urban area the following measures should be taken : 1. Health center must be expended or establish subhealth center. 2. Health center must monitor neighbour's workplace's health management for their working population. 3. Health centers must do active home visiting nursing care for the urban-poor. 4. Health center must carry out flexible problem-centered practice according to the area. 5. For the urban-poor's health care must have organization of the health center & practice according to community's characteristics. 6. Public health care must be closely connected with welfare. 7. For the health care of the urban-poor must demand active community participation. 8. Health center is closely connected with Community hospital. 9. Active management of public health resource system is demanded.

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A Study of the Transition of the Family-Friendly Index (가족친화지수 추세분석에 관한 연구)

  • Jeong, Young-Keum;Yoon, So-Young;Cho, Seong-Eun
    • Journal of Family Resource Management and Policy Review
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    • v.18 no.2
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    • pp.17-35
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    • 2014
  • This study analyzes the transition of the Family-Friendly Index from 2007 to 2012. This index was developed using a questionnaire survey that is distributed to listed companies and public institutions every year by the Ministry of Gender Equality & Family(MOGEF) and the Family-Friendly Support Center. The Family-Friendly Index contains an introduction to and the practical use of family-friendly regulations and programs, such as flexible working systems, parental leave, family leave, EAP, and family-friendly culture. The number of companies involved in the Family-Friendly Index is increasing every year, and has increased from 41.7 in 2007 to 58.9 in 2012. In particular, family-friendly companies testimonialized by the MOGEF are using more family-friendly programs than other company.

Rolling Force Prediction in Cold rolling Mill using Neural Networks (신경망을 이용한 냉연 압하력 예측)

  • Cho, Yong-Jung;Cho, Sung-Zoon
    • IE interfaces
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    • v.9 no.3
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    • pp.298-305
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    • 1996
  • Cold rolling mill process in steel works uses stands of rolls to flatten a strip to a desired thickness. Most of rolling processes use mathematical models to predict rolling force which is very important to decide the resultant thickness of a coil. In general, these mathematical models are not flexible for variant coil types and cannot handle various elements which is practically important to decide accurate rolling force. A corrective neural network is proposed to improve the accuracy of rolling force prediction. Additional variables-composition of the coil, coiling temperature and working roll parameters-are fed to the network. The model uses an MLP with BP to predict a corrective coefficient. The test results using 1,586 process data collected at POSCO in early 1995 show that the proposed model reduced the prediction error by 30% on average.

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A Study on the Stress Control Technique of Tensegrity Structures (Tensegrity구조물의 장력제어 기법에 관한 연구)

  • 김승덕;정을석
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2003.10a
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    • pp.285-292
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    • 2003
  • The soft structure can make large space more effectively, and its construction is easy and simple as well. However, it is not easy to realize this in the actual space. Therefore, two works are needed to be done for effective and accurate construction of soft structures. First, making a working scenario to complete the final objective form; second revising construction errors occurred in the middle of the actual works. These works are called constructional analysis. At this time, geometric nonlinearity should be considered to reflect the sensitivity by the initial stress of flexible structures, constructional analysis comes down to a nonlinear problem after all. This study approaches nonlinear constructional analysis with the numerical method for adjusting stress of cable-dome structures which are a soft structure system, and then verifies it.

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Study of High Precision Mechanism For Loading/Unloading of Material (소재의 정밀 Loading/unloading 기술 개발)

  • Choi Hyeun-Seok;Tak Tae-Yul;Han Chang-Soo;Lee Nak-Kyu;Choi Tae-Hoon;Lee Hye-Jin
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2005.05a
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    • pp.419-423
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    • 2005
  • In microfactory, loading/unloading mechanism supply the row material to processing machines for manufacturing process such as pressing, cutting, plastic deformation. This mechanism for rnicrofactory is designed as modularity robot. Microfactory system have to be flexible structure for variety product item. For system flexibility, applied mechanisms are developed as moduality. Robot moduality needs the specific characteristics which are different from one of macro, typical robot system. In this paper, we discussed about the modularity robot. and proposed the loading/unloading mechanism for working in microfactory system.

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The Study on the Deadlock Detection and Avoidance Algorithm Using Matrix in FMS (행렬을 이용한 FMS에서의 교착상태 탐지 및 회피 알고리즘에 대한 연구)

  • Lee Jong-Kun;Song Yu-Jin
    • Journal of Institute of Control, Robotics and Systems
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    • v.11 no.4
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    • pp.344-352
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    • 2005
  • The modem production systems are required to produce many items. This is due to the fact that society has become more complex and the customers' demands have become more varied. The demand for complex production systems of various purposes, which can flexibly change the content of work, has increased. One of such production systems is FMS (Flexible Manufacturing System). Limited resources must be used in FMS when a number of working procedures are simultaneously being undertaken because the conditions of stand-by job processes cannot be changed. Researchers are currently being conducted to determine ways of preventing deadlocks. In this study, we proposes the algorithm for detection and recovery of a deadlock status using the DDAPN(Deadlock Detection Avoidance Petri Net). Also, we apply the proposed algorithm has a feature to the FMS.

PRINCIPLES OF AN ACTIVE NOISE AND VIBRATION CONTROL SYSTEM CONSTRUCTION FOR SHIP

  • Maslov, Viatcheslav L.;Soloveitchik, Leonid I.
    • Proceedings of the Acoustical Society of Korea Conference
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    • 1994.06a
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    • pp.860-863
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    • 1994
  • Main sources of increased vibrations and air noise on ship are main and auxiliary engines and ship ducts. The various ways of transfer of vibration energy and air noise in passenger cabin of a vessel require, in general case, of various methods of attenuation. The transfer of vibration energy from engines through a support requires, alongside with shock-absorbers, availability active shock-absorbers. The transfer of vibration energy and hydrodynamic noise on ship ducts requires availability, alongside with flexible muffler, active mufflers. The availability of air noise from working equipment can require, along with absorbent covers, of space systems of active noise control. In the given article it is spoken about the unified approach to formation of the block-diagram of active noise and vibration control. The complex approach permits to receive additional efficiency in reduction of noise in passenger cabin of vessels.

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A Study on the Realization of Protocol Stack for I/O Elements Control for Multi-devices and Field Level

  • Kwak, Chang-Yong;Kim, Tae-Hwa;Kwon, Soon-Jae;Son, Jeong-Ki
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.52.1-52
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    • 2001
  • System establishment using a network may be a decisive factor both for creating a flexible production system and increasing reliability and serve as a basis for setting up of a management system that will make the designing, maintenance, and repair easier. It is therefore imperative to develop a protocol which is simple to use for communications and connections among different devices. The objectives of this study is to establish communications protocol stack that will enable to conduct an effective monitoring of production facilities and to secure flexibility of reduction control system, and to improve the working ratio of the production facilities by centralization of communications system through effective collecting and storing of the diversified data of multi-type and multi-device production facilities.

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Al doped ZnO film on PET deposited by roll to roll vacuum coater for the flexible electronics

  • Yang, Jeong-Do;Park, Dong-Hee;Yoo, Kyung-Hwa;Choi, Won-Kook
    • Proceedings of the Korean Vacuum Society Conference
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    • 2010.08a
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    • pp.213-213
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    • 2010
  • We investigated the RF sputtering conditions for the deposition of AZO (Al doped ZnO) transparent conducting film on PET using the roll to roll vacuum coater. AZO thin films, sputtered at the various RF powers and working pressures, were studied for their structural, electrical and optical properties.. From the X-Ray diffraction patterns, we calculated the lattice stress using the Bragg equation. The compressive stress tends to decrease with the increase in film thickness. AZO thin film with the thickness of 152nm (1400W, 0.4Pa) exhibit the resistivity of $3.92*10-3{\Omega}/cm$ and the transmittance of 96.9% at 550nm.

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