• Title/Summary/Keyword: Improvement Of System

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Study on Present Status and Improvement of Automatically Noise-measuring System in Construction Site (건설공사장 소음자동측정망 현황 및 개선에 관한 연구)

  • Sun, Hyo-Sung;Park, Young-Min
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2008.11a
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    • pp.616-618
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    • 2008
  • The objective of this study is to prepare the plan for managing construction noise effectively and solving the popular enmity from construction noise reasonably. In order to carry out this purpose, it covers the efficient improvement plan for installing and managing the automatically noise-measuring system which shows the advantage for construction noise management and popular enmity solution due to construction noise.

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A Study on the Status of Production Management & the New Model Build-up Approaching Control Technique System for Productivity Improvement in Korean Small-Medium Manufacturing Enterprises (생산성항상을 위한 중소제조기업의 생산관리 실시현황과 관리기법적응 체계모형설정)

  • 신용백
    • Journal of the Korean Professional Engineers Association
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    • v.33 no.2
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    • pp.62-67
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    • 2000
  • The trouble rank of business management of the small-medium manufacturing enterprises in Korea is constituted by that average 28.6% of production management in the worst trouble of business management from 1982 to 1999. The status of production management approaching problem is analyzed for Korean small-medium manufacturing enterprises and it us checked productivity improvement and requirement facts impede productivity improvement. It is expected to contribute much productivity improvement through a new established model of production management system and technique or tool for small-medium manufacturing enterprises in Korea.

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A Study on Effect Analysis of Integrated Demand Management According to Energy System Management Model (Energy System Management 모형을 통한 통합 수요관리 효과분석에 관한 연구)

  • Kim, Yong-Ha;Jo, Hyeon-Mi;Kim, Young-Gil;Park, Hwa-Yong;Kim, Hyeong-Jung;Woo, Sung-Min
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.7
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    • pp.1339-1346
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    • 2011
  • This paper is developed to demand management scenario of energy consumption efficiency improvement, electricity generation efficiency improvement, network efficiency improvement, change of distribution ratio, movement of energy source, change of heating system, put of CHP to quantitatively assess to impact on energy use of demand management at the national level. This scenario can be applied Energy System Management model was developed based on Energy Balance Flow. In addition, effect analysis through built demand management scenario was quantitatively evaluated integrated demand management effectiveness of energy cost saving, CO2 emission reduction and energy savings of national level by calculating to primary energy source usage change in terms of integration demand management effect more often than not a single energy source separated electricity, heat and gas.

Evaluation of Efficiency and Conformity of DMAIC-Based Battery Production System Challenge Solving Methodology: A Study on the Applicability for Improvement ("DMAIC 기반 배터리 생산시스템 과제해결방법론"의 효율성 및 적합성 평가: 개선을 위한 적용 가능성 연구)

  • Shin Chul Park;Joo Yeoun Lee;Myoung Sug Chung
    • Journal of the Korean Society of Systems Engineering
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    • v.20 no.spc1
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    • pp.30-44
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    • 2024
  • The DMAIC methodology, which is most familiar to battery production system developers, is partially inadequate in its conformity to utilize battery production system tasks, so it is necessary to improve the function and structure of the methodology, but many battery production system developers use the DMAIC method based on experience, causing side effects such as confusion, delay in tasks, and insufficient performance during tasks. Accordingly, we intend to conduct an empirical study to improve the "efficiency improvement and conformity evaluation method" so that the DMAIC methodology can be used more reasonably and easily. Using the three-stage research model, we derive components that affect conformity through literature and questionnaire surveys in the first stage, use relational characteristics between components in the second stage to confirm the effect on conformity, and use the relational characteristics in the third stage to confirm the possibility of improving efficiency by applying them to the DMAIC methodology in actual cases. Finally, the "Conformity Assessment Index (CAI) equation" based on relational characteristics is established to enable effective conformity evaluation and continuous improvement.

A Study on Indoor Air-quality Improvement System Using Actuator (선형엑츄에이터를 이용한 실내 공기질 개선 시스템에 대한 연구)

  • Seo, Do-Won;Yoon, Keun-Young
    • The Journal of the Korea institute of electronic communication sciences
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    • v.16 no.1
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    • pp.183-190
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    • 2021
  • This study is a study on the implementation and operation of smart air cleaning system to improve indoor air quality. Recently, the problem of indoor air quality is getting serious due to various environmental factors. In this study, to improve the problems of indoor air quality, we implement an air cleaning system using IoT sensor. In particular, we proposed a system that can measure air pollution in real time and change different air flow paths according to pollution level. Through this, we examined efficient air quality improvement, extension of filter life, and system energy reduction. In addition, the main functions of the indoor air quality improvement system were constructed and prototypes were manufactured to confirm the operability. Finally, the utility of fine dust resolution through the implementation of the indoor air quality improvement system was examined.

Design and Implementation of Sleep Disorders Improvement System Based on Multi-Sensor (멀티센서 기반 수면장애 개선 시스템 설계 및 구현)

  • Le, Young-Woo;Park, Seok-Cheon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.11
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    • pp.2653-2660
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    • 2013
  • Representative sleep disorders represent sleep apnea and snoring. Although researches to diagnose sleep disorders as solutions for these problems are going on, the original researches only diagnose and measure sleep disorders but ones to find out the reasons are not activated much. Therefore, to reinforce this, this paper suggests sleep disorder improvement system based on multi-sensor. To design the system proposed in this paper, the entire system's structure was found and data's flow was planned. To ensure that the system works, mobile application and user interface was built based on Android. To test the results on accuracy of sleep disorders improvement system based on ontology using multi sensor built and planned in this paper, a scenario was written. As a result of testing inference results' accuracy changing factor values of sleep disorders following test scenario, proposed sleep disorders improvement system's accuracy was checked.

A Case Study of Continuous Improvement Methodology by Calculated Quality-Cost (품질비용 산정에 의한 지속적 개선 방법 사례 연구)

  • Lee, Kang-In;Han, Seok-Man
    • Journal of Korean Society for Quality Management
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    • v.33 no.3
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    • pp.19-30
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    • 2005
  • Recently many organization to become survival in changing marketplace, they must commit to implementing tools, systems, and quality management techniques. In this paper we develop process method of Team's problem-solving to reduce in failure costs. This paper suggest the step process how to measure quality cost reasonably that works in all types organizations. Or what is continuous improvement? Continuous improvement can be described as the continuous reduction of variation. Variation has many sources(machines, methods, materials, measurements, people, and environments) and cause(special & common in organization). As quality cost are not the answer to every organization financial, or quality-related problem, it's real results are designing & implementing quality cost system might be the answer.

The changes of Facial nerve palsy by Miso Facial Acupuncture on Orbicularis Oculi muscle : A case study (안면신경마비에 대한 안륜근 미소안면침 증례보고)

  • Cho, Ah-Reum;Kim, Ji-Hyun;Chou, Ching-Yu;Won, Jae-Sun;Kim, Chang-Hwan
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.23 no.2
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    • pp.196-205
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    • 2010
  • Objective : This study was designed to evaluate the effect of Miso Facial Acupuncture on Orbicularis Oculi muscle. Methods : Two men and four women with Facial nerve palsy were recruited. Miso Facial Acupuncture on Orbicularis Oculi muscle was performed two times a week for three weeks. The effects of the treatment were evaluated by H-B scale, Y-system and clinical symptom. Results : Before treatment with Miso Facial Acupuncture, three patients showed H-B scale improvement and the other three patients had no change. and four patients showed Y-system improvement and the other two patients had no change. In six cases, the patients had improvement in clinical symptom related with Orbicularis Oculi muscle function. Conclusion : Miso Facial Acupuncture on Orbicularis Oculi muscle showed significant improvement in facial nerve palsy.

A Study on the improvement through the present state analysis of the industry field training (산업체 현장실습 운영 현황 분석을 통한 개선 방안에 관한 연구)

  • Park, Kyung-Woo;Park, Ik-su
    • Journal of Engineering Education Research
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    • v.19 no.2
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    • pp.97-101
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    • 2016
  • This paper examines the industry field training education model, analyze the operational status proposed improvement measures. Data were analyzed using a field training participating students participating industry last three years. On the other hand analysis field training participating students increased, industry participation has decreased. And most of the students took part in the seasonal short-term job training. In addition, it was difficult to analyze the employment status field training operations follow-up member. In this paper, a field training operations support system management models and practical training courses organized field trips how to improve. Field training operations support will be strengthened through the work associated with the company expanding participation model introduced and is expected to increase in the long-term practical training, students participate in field training system improvement. Run the job training Improvement in future research presented in this paper attempts to analyze the students' employment status and results of operations involved.

Voltage Stability Enhancement by Optimal Placement of UPFC

  • Kowsalya, M.;Ray, K.K.;Shipurkar, Udai;Saranathan
    • Journal of Electrical Engineering and Technology
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    • v.4 no.3
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    • pp.310-314
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    • 2009
  • This paper presents the improvement of the voltage profiles of power system networks by the inclusion of Unified Power Flow Controller (UPFC). The mathematical model of the UPFC is incorporated in the load flow algorithm and the L-index is calculated for the different values of the control parameter r $and{\gamma}$. The positioning of the UPFC device is changed to minimize the sum of the squares of the L-indices at all load buses. The test cases considered for the improvement of voltage profile with the WSCC 9-bus and IEEE 30 bus system. With the best position of UPFC along with the control parameters the improvement in voltage profile of the power system networks are obtained. The results obtained are quite encouraging compared with other techniques used to identify the best location of UPFC.