• Title/Summary/Keyword: integrated order

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Development of Integrated System for DfD (Design for Disassembly) of Automobile in Design Phase (설계단계 적용을 위한 차량의 해체용이설계(DfD: Design for Disassembly) 통합시스템 개발)

  • Cho, Jong-Rae;Kwon, Jae-Soo;Hong, Byeong-Kwon;Hong, John-Hee;Kwon, Moon-Sik
    • Journal of the Korean Society for Precision Engineering
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    • v.24 no.8 s.197
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    • pp.58-66
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    • 2007
  • In order to improve the recyclability and to reduce the recycling cost and time, the disassembly technology should be systemized because the worn out products can be reused or recycled after disassembly processes. This paper attempts to propose the integrated CATIA-based DfD (Design for Disassembly) support system to promote the disassemblability of products. The system is composed of two modules; evaluation of disassemblability, generation of DfD alternatives. The disassemblability of current vehicle is evaluated to identify the weak point in terms of disassembly using the DELMIA and developed evaluation system. Furthermore a new expert system is developed to propose the optimal redesign rule and principle for generating the DfD alternatives. In order to generate the DfD alternatives, a CATIA-based design support system is implemented. The system can provide quick results and ensure consistency and completeness of the redesign alternatives.

An Implementation of an Intelligent Digital Ship (지능형 디지털 선박의 구현방안)

  • Lim, Yong-Kon;Park, Jong-Won
    • Journal of the Society of Naval Architects of Korea
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    • v.45 no.5
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    • pp.554-561
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    • 2008
  • This paper deals with an intelligent digital ship which aims at development to support economic and safe services through an integration into the hierarchically layered digital signals such as ship's navigation, maneuvering and control signal and establishing a one-man bridge system in order to provide a support systems between ship and land station. This paper introduces the results of the mid-term project sponsored from Ministry of Commerce, Industry and Energy which consists of three sub-project such as INS(Intelligent Navigation System), AIS(Automatic Identification System), and IMIT (Integrated Maritime Information Technology). The INS system that can allow ships to navigate economically and safely through the integration and analysis of national data within the ship. AIS is a system that reports automatically on the location of the ship in order to prevent the collision between ships and between the ship and the land. IMIT is a integrated system for providing an efficient and economic support system between ships and the land and a ship-land platform and technologies.

Development of User Friendly Integrated Program and Teaching System for Automatic Polishing Robot System (자동 연마 시스템의 사용자 지향형 통합 프로그램 및 자동 교시 시스템 개발)

  • 고석조;이민철;이만형;안중환;김성한;이돈진
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.123-123
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    • 2000
  • Polishing a die that has free-form surfaces is a time-consuming and tedious job, and requires a considerable amount of high-precision skill. In order to reduce the polishing time and cope with the shortage of skilled workers, a user-friendly automatic polishing system was developed in this research. The polishing system with five degrees of freedom is able to keep the polishing tool normal to the die surface. The polishing system is controlled by a PC-NC controller. And, to easily onerate the developed polishing system, this stud)r developed a integrated program in the Windows environment. This program consists of 4 modules: polishing module, a graphic simulator, a polishing data generation module, and a teaching. Also, the automatic teaching system was developed to easily obtain a teaching data. The developed teaching system consists of a three dimensional joystick and a proximity sensor. In order to evaluate stability of the driving program and the leaching system, polishing experiments of the die of saddle shape were carried out.

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Achievable Rate of Beamforming Dual-hop Multi-antenna Relay Network in the Presence of a Jammer

  • Feng, Guiguo;Guo, Wangmei;Gao, Jingliang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.11 no.8
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    • pp.3789-3808
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    • 2017
  • This paper studies a multi-antenna wireless relay network in the presence of a jammer. In this network, the source node transmits signals to the destination node through a multi-antenna relay node which adopts the amplify-and-forward scheme, and the jammer attempts to inject additive signals on all antennas of the relay node. With the linear beamforming scheme at the relay node, this network can be modeled as an equivalent Gaussian arbitrarily varying channel (GAVC). Based on this observation, we deduce the mathematical closed-forms of the capacities for two special cases and the suboptimal achievable rate for the general case, respectively. To reduce complexity, we further propose an optimal structure of the beamforming matrix. In addition, we present a second order cone programming (SOCP)-based algorithm to efficiently compute the optimal beamforming matrix so as to maximize the transmission rate between the source and the destination when the perfect channel state information (CSI) is available. Our numerical simulations show significant improvements of our propose scheme over other baseline ones.

The feasibility study for the building integrated geothermal system using the horizontal heat exchanger (수평형 지중열교환기를 이용한 건물일체형 지열시스템의 도입타당성 분석)

  • Chae, Ho-Byung;Nam, Yujin;Yoon, Sung-Hoon
    • Journal of the Korean Solar Energy Society
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    • v.35 no.1
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    • pp.81-87
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    • 2015
  • Recently, in order to prevent increasing energy usages in the international community, many countries have attempted to develop the innovative renewable energy systems. Among the renewable energy systems, Ground source heat pump(GSHP) system which supply the heating, cooling and hot water in the building has been attracted by its stability of heat production and high efficiency. However, the initial drilling costs become very expensive and the construction period takes longer the other systems, because GSHP system needs more than 100 m depth drilling. In this study, in order to reduce initial costs of the GSHP, the building integrated geothermal system using the horizontal heat exchanger was developed. The heating and cooling load in the standard housing model was calculated by a simulation and the system design capacity in the high-rise apartment was decided by the total load. Based on the system design capacity, the high-rise apartments were applied to a BIGS and vertical GSHP system and there are analyzed about initial costs. In the result, the initial cost of BIGS could reduce 24% of the initial cost of the vertical GSHP system.

LC Alignment Behaviors at Rubbed Films of Brush Polyimides;Perpendicular LC Alignment versus Parallel LC Alignment

  • Lee, Taek-Joon;Hahm, Seok-Gyu;Lee, Seung-Woo;Chae, Bok-Nam;Lee, Seong-June;Kim, Seung-Bin;Jung, Jin-Chul;Ree, Moon-Hor
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.766-768
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    • 2004
  • Rubbed films of a series of poly(p-phenylene 3,6-bis(4-(n-alkyloxy)phenyloxy)pyromellitimide)s (Cn-PMDA-PDA PIs), which are well-defined brush PIs composed of two aromatic-aliphatic bristles per repeat unit of a fully rodlike backbone, were investigated in detail using atomic force microscopy (AFM), optical retardation analysis and linearly polarized infrared (IR) spectroscopy in order to elucidate their surface morphology and molecular orientation. The liquid crystal (LC) alignment behavior and the anchoring energy of LC molecules on the rubbed films were also determined.

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Evolution of Vertical Integration in the Korea Broiler Industry (한국육계산업의 수직통합(계열화) 전개상황)

  • 박영인
    • Korean Journal of Poultry Science
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    • v.18 no.1
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    • pp.57-66
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    • 1991
  • The broiler industry in Korea has been gradually changing its structure of independent operation into integrated and coordinated production and marketing system. It was in 1960s when the broiler industry first tried the integrated effort, but never succeeded as it was expected since due mainly to growers' attitudes favorable for traditional operation and agribusiness' passive response on structure change. Until mid 1980s, however, a bit of partially integrated system had been evolved by several factor suppliers. Recent years have furthered its progress toward completely integrated pattern, the ultimate goal of broiler integration. It is true that the external factors including the GATT Negotiations through the Uruguay Round stimulated the people involved in the industry to find the way of making it competitive to survive in the open, liberalized world economic system rapidly emerging through the process of globalization. Once the industry realized the necessity of reducing the cost of production and improving the quality of it, the conclusion tended to come to the point of an entire structural alteration by means of integration rather than an improvement of a certain segment such as marketing. It is very obvious. therefore. that the movement toward the complete integration will speed up in a coming few years under the leadership of not only entrepreneurs but also producers group. According to a report. there were three almost complete integrators and thirteen partial integrators as of December, 1990, all of which eagerly directed toward the completely integrated system in due course . Among others as an advantage of integrated structure. the cost saving must be pointed out as the greatest one In a survey, it was estimated that the cost of dressed and ready-to-eat chicken could be lowered by 31.8 percent and 41.5 percent, respectively, over that to be under the independent, non-integrated system. As long as everybody concerned about the future of the industry in the open market mechanism realizes the importance of the structure change through an integration, the broiler sector of Korean agriculture shall be moving toward the direction of vertically and completely integrated structure in order to make it competitive, even to export, hopefully before 1995 or by the end of this century in any case.

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A Study on Integrated Operation of School Bus in Suburbs (교외지역 통학버스 통합 운영 방안 연구)

  • Ko, Young Dae;Oh, Yonghui
    • Journal of Korean Society for Quality Management
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    • v.46 no.4
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    • pp.899-910
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    • 2018
  • Purpose: Generally, since the population density is lower in suburban areas, the distance to school is inevitably long. Therefore, schools in suburban areas often operate school buses to improve student welfare. However, since school buses are usually used only during going to and from school, the utilization rates are relatively low. Therefore, this study aims to establish integrated operation plan of public school bus covering all schools. Methods: It is necessary to decide which school buses will serve the specific demand node which want to go to certain school in order to design an integrated operation plan for school buses. Therefore, a mathematical model is developed for minimizing the total number of vehicles and the distance of transportation by reflecting the characteristics of school buses and students as constraints. To solve the proposed mathematical model, CPLEX, a commercial solver, is applied. Results: To validate and to confirm the proposed process, numerical example is designed with the comparison between before and after integrated operations of school buses in terms of total operation cost. The result shows that the integrated operation can lead the reduction of the number of school buses as well as the decreasing of the fuel cost. Conclusion: This study provides the quantitative method to perform the integrated operation of school buses in suburban areas. The optimal operation strategy is required because there are more complex decision-making elements considering the integrated operation. It is expected to apply this research result at real situation to expand this services based on an optimal operation.

Korean Medicine Meanings of Integrated Arts Therapy Case on School Age Children's Emotional Support (학령기아동 정서지원을 위한 통합예술치료 사례의 한의학적 의의)

  • Jung Min Lee;Su Jin Lee;Young-Kyu Kwon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.38 no.3
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    • pp.67-73
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    • 2024
  • In order to investigate the effects on school age children's emotional intelligence and happiness from the perspective of Korean medicine, integrated arts therapy was conducted for children participating in the Education Welfare Priority Support Project. This study randomly assigned 20 children with educational welfare priority to 10 students in the experimental group and 10 students in the control group. The experimental group conducted an integrated arts therapy program once a week for a total of 12 sessions at S Elementary School in Busan, and the control group maintained their daily lives. For statistical analysis, the Mann-Whitney U test was used to test the homogeneity of the two groups, and the Wilcoxon signed-rank test was used to analyze the pre- and post-program figures. The integrated arts therapy program had a significant effects on the emotional intelligence and well-being of children receiving Education Welfare Priority Support. Integrated arts therapy, which is part of Korean medicine's mind-body medicine intervention, is an organic relationship in which the body and mind are interdependent, and maintains a state of balance between yin and yang opposition, which has a positive effects on children's emotional intelligence and well-being.

Improved Integrated Monitoring System Design and Construction (개선된 통합모니터링 시스템 설계 및 구축)

  • Jeon, Byung-Jin;Yoon, Deok-Byeong;Shin, Seung-Soo
    • Journal of Convergence for Information Technology
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    • v.7 no.1
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    • pp.25-33
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    • 2017
  • In order to prevent information leakage, companies are monitoring the information leakage by internal staff by building individual security system and integrated monitoring system of firewall and DLP function. Especially, many log data of the integrated monitoring system cause time and money, and it is difficult to detect information leak of fast malicious personnel due to system slowdown. It is necessary to speed up the system by digitizing large log data for each day and person for fast information leakage detection and there is a need to develop and manage a continuous monitoring program for the information leakage indications personnel. Therefore, we propose an improved integrated monitoring system using log data by date and individual data.