• Title/Summary/Keyword: performance improvement

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A Study on Operational Performance Evaluation of Marine Forest Creation project by BSC, AHP and IPA (BSC-AHP-IPA를 활용한 바다숲 조성사업의 운영성과 평가에 관한 연구)

  • Cho, Sun-Je;Hong, Jae-Bum
    • The Journal of Fisheries Business Administration
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    • v.48 no.1
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    • pp.31-49
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    • 2017
  • This study focuses on developing a theoretical framework for evaluating Operational Performance of the Marine Forest Creation project on a balanced and comprehensive perspective by using BSC, AHP, and IPA. Also, the purpose of this study is empirically to analyze operational performance of the project and to suggest the future improvement plan. For this purpose, We will first determine the critical success factors(CSF) and key performance indicators(KPI) required for evaluating the performance of the Marine Forest Creation project from the four perspectives of BSC. And, After determining the weight for each of CSF, KPI, and four perspectives of BSC by using AHP, we will measure the project performance. We will also conduct IPA analysis to propose the direction of improvement of the Marine Forest Creation project. The results of this study are as follows. First, this study has drawn 8 critical success factors and 16 key performance indicators for four BSC perspectives based on the theoretical considerations and expert interview survey. Second, as a result of deriving relative importance of BSC perspectives using AHP, customer perspective was the highest, followed by financial perspective, learning and growth perspective, and internal process perspective. Third, as the results of analyzing the importance and performance of BSC perspectives using IPA, customer perspective was the maintenance reinforcement category, financial perspective was the key improvement category, internal process perspective and learning and growth perspective were gradual improvement category. This study has a great academic significance in terms of BSC first tried to evaluate the performance of the Marine Forest Creation project. The results of this study are expected to lead to various discussions for a balanced and comprehensive verification of Marine Forest Creation project performance.

A Performance Improvement of Linux TCP Networking by Data Structure Reuse (자료 구조 재사용을 이용한 리눅스 TCP 네트워킹 성능 개선)

  • Kim, Seokkoo;Chung, Kyusik
    • KIPS Transactions on Computer and Communication Systems
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    • v.3 no.8
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    • pp.261-270
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    • 2014
  • As Internet traffic increases recently, much effort has been put on improving the performance of a web server. In addition to hardware side solutions such as replacement by high-end hardware or expansion of the number of servers, there are software side solutions to improve performance. Recent studies on these software side solutions have been actively performed. In this paper, we identify performance degradation problems occurring in a conventional TCP networking reception process and propose a way to solve them. We improve performance by combining three kinds of existing methods for Linux Networking Performance Improvement and two kinds of newly proposed methods in this paper. The three existing methods include 1) an allocation method of a packet flow to a core in a multi-core environment, 2) ITR(Interrupt Throttle Rate) method to control excessive interrupt requests, and 3) sk_buff data structure recycling. The two newly proposed methods are fd data structure recycling and epoll_event data structure recycling. Through experiments in a web server environment, we verify the effect of our two proposed methods and its combination with the three existing methods for performance improvement, respectively. We use three kinds of web servers: a simple web server, Lighttpd generally used in Linux, and Apache. In a simple web server environment, fd data structure recycling and epoll_event data structure recycling bring out performance improvement by about 7 % and 6%, respectively. If they are combined with the three existing methods, performance is improved by up to 40% in total. In a Lighttpd and an Apache web server environment, the combination of five methods brings out performance improvement by up to 36% and 20% in total, respectively.

The Learning Motivation Improvement Program in Children with Attention-Deficit Hyperactivity Disorder(ADHD) (주의력결핍 과잉행동장애 아동에서 학습동기증진프로그램)

  • NamKoong, Sun;Ahn, Dong-Hyun;Lee, Yang-Hee
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.18 no.1
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    • pp.58-65
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    • 2007
  • Objectives : Motivational factor is a unique contributor to the typically poor academic performance of children with ADHD. However, few study has directly intervened learning motivation in children with ADHD. We conducted this study to explore the direct effects of the learning motivation improvement program applied to children with ADHD. Method The program was designed in order to increase an interest-inducing educational intervention, an academic skills integration, a basic learning activity (reading, writing, and math), and children's self-esteem. We conducted the program twice a week (total 10 sessions) and assessed learning motivation, teaming attitude, self-esteem, academic performance, and problem behaviors of participating children. Results : After the program, teachers reported improvement in teaming motivation. In addition, parents notified sisnificant reduction of problem behaviors. Children reported improvement in a few domains of teaming motivation and learning attitude. Conclusion : While loaming motivation is regarded as an important factor in education, there have been few studies considering this issue in both educational and psychiatric fields. The teaming motivation improvement would be needed in both field in order to reduce the deficits in academic performance in children with ADHD.

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The Performance of Innovation Consulting for Local Governments by the Ministry of Government Administration and Home Affairs (행정자치부의 지방행정 혁신컨설팅 사업의 성과 연구)

  • Choe, Seung-Beom
    • 한국디지털정책학회:학술대회논문집
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    • 2007.06a
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    • pp.41-47
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    • 2007
  • The purpose of this paper is to analyze the performance of innovation consulting program by the Ministry of Government Administration and Home Affairs(MOGAHA) for local governments. The performance of the consulting program was measured by the difference of innovation grade improvement local governments which were included in the program achieved more grade improvement than others which were not. Especial Iy municipalities at lower grades in 2005 have reached higher stage after receiving Innovation consulting.

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Effects of CEO Leadership and Employee's QM Participation on Innovation and Business Performances in Automotive' s Vendor (경영혁신성과에 리더십과 구성원 참여가 미치는 영향 - 자동차 협력기업을 중심으로 -)

  • Koo, Il-Seob;Kim, Tae-Sung
    • Journal of the Korea Safety Management & Science
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    • v.18 no.1
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    • pp.167-177
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    • 2016
  • The CEO leadership and employee's concerning and participation to quality management innovation activity is critical factor for improving the business performance. This empirical study is aims to find that whether the quality management activity is significant or not in the automotive parts suppliers. To perform this research, we distributed 250 sheets totally, and withdraw 194 sheets. We analysed 169 sheets that we could use for this research using SPSS 18.0 and AMOS 18.0. We had the results that CEO leadership is significantly positive effects on the employees's participation to quality management. And the result of process improvement have positively effective and significant effects on the product improvement result and business performance of firms.

A Study on the Construction and Improvement of Software Process Infrastructure for Software Firms In Korea (국내 소프트웨어 사업자의 프로세스 기반구조 구축 및 개선 방안 연구)

  • Ahn, Yeon-Shick;Moon, Song-Chul;Kim, Dong-Soo
    • Asia pacific journal of information systems
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    • v.14 no.4
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    • pp.23-47
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    • 2004
  • This study was tried for the improvement of software process ability of the software firms, and analyzed empirically the impact that a software process infrastructure level influences on the software process level and process performance. The questionnaire were developed and data were collected from the process improvement correspondences or project quality managers of the 78 software firms. The result was shown that management-organization infrastructure was composed of software process improvement organization's role and activity, process standard and education, management system and supporting, management guides and procedures. And organization's standard development procedure or criteria, process asset, process support tools were included in technical infrastructure. This study provides that some components of software process infrastructure had an significant influence on the process level, process infrastructure management level, and software process performance.

A Study on Evaluation and Improvement of Sealing Performance of Duct Cap Assembly for Ice Dispenser By Nonlinear Contact Problem Analysis (비선형 접촉문제 해석을 통한 얼음 디스펜서 덕트 캡 조립체의 밀봉성능 평가 및 개선방안 연구)

  • Lee, Boo-Youn
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.17 no.2
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    • pp.37-46
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    • 2018
  • Present research is to evaluate and improve the sealing performance of the duct cap assembly for the ice dispensers through structural analysis. The nonlinear contact problems to check the sealing performance were analyzed using ANSYS software. The results of the analyses related to the sealing performance: the displacement distribution, the contact condition between the cap-silicon and the case, and the pressure distribution on the contact surface, were examined and discussed. Based on the results of the existing design of the duct cap assembly, two cases of the design modifications to improve the sealing performance were introduced. By examining the results of the two cases, a final design improvement plan was proposed and analyzed. It is shown that the sealing performance of the proposed final design is much more favorable than the existing design. The method of structural analysis and design improvement of the duct cap assembly presented in this paper will help improve the sealing performance of the ice dispenser duct caps.

Assessing the Safety Management Performance of Korean Domestic Construction Companies and Improvement Plans (국내 건설회사의 안전관리 수준분석 및 향상방안)

  • Son, Chang-Baek;Lee, Dong-Eun;Choi, Seung-Mo
    • Journal of the Korean Society of Safety
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    • v.22 no.3 s.81
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    • pp.65-73
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    • 2007
  • This paper presents the safety performance of Korean domestic construction companies including the characteristic and current status of safety management actions of the firms. Safety performance both at the head office and job sites of each construction companies, which are divided four groups by construction capacity ranking, are investigated. General recognition that there is a wide difference of safety performance among domestic construction companies by construction capacity ranking was confirmed by comparing the safety performance at the head office and the job sites of the companies under the study. Data analysis shows that the safety performance of the group I and II has the largest difference, and this difference of the group II and III and group III and IV are gradually decreased, respectively. This paper presents the safety performance improvement measures, which is applicable to safety management components consisting of both the head office and job sites safety management systems of each group (e.g., I, II, III and IV) suffering the lack of safety performance.

Performance verification and improvement of the frequency analysis unit for GIS Preventive & Diagnostic Monitoring System (GIS 예방진단시스템 주파수 분석장치 성능개선 및 검증)

  • Kim, Won-Gyu;Kim, Min-Soo;Baek, Young-Sik
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.64 no.3
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    • pp.485-491
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    • 2015
  • This paper shows the design improvement and test model of FAU (Frequency Analysis Unit) in PDD (Partial Discharge Diagnosis system) for 800kV GIS (Gas Insulated Switchgear). We found some problems during operation of previous FAU, such as the aging of fiber-optic converter that can cause communication error, the malfunction of signal analysis circuit etc. And then we solved those problems by design improvement and verified the performance through type test. To monitor partial discharge, the performance of UHF sensor is important but the performance of frequency analysis unit is also very important. So we solved communication error, the malfunction of signal analysis circuit and then increased the operation reliability of FAU by improving fiber-optic converter and signal analysis circuit. Accredited testing laboratory carried out the performance verification test according to performance test criteria and procedure of reliability test standards, IEC-60225, 61000 and 60068 etc. We confirmed the test results which correspond with the performance test criteria.

Air Layer Effect on the Performance Improvement of a Cross-Flow Hydro Turbine

  • Choi, Young-Do;Shin, Byeong-Rog;Lee, Young-Ho
    • The KSFM Journal of Fluid Machinery
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    • v.13 no.4
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    • pp.37-43
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    • 2010
  • The purpose of this study is not only to investigate the effects of air layer in the turbine chamber on the performance and internal flow of the cross-flow turbine, but also to suggest a newly developed air supply method. Field test is performed in order to measure the output power of the turbine by a new air supply method. CFD analysis on the performance and internal flow of the turbine is conducted by an unsteady state calculation using a two-phase flow model in order to embody the air layer effect on the turbine performance effectively. The result shows that air layer effect on the performance of the turbine is considerable. The air layer located in the turbine runner passage plays the role of preventing a shock loss at the runner axis and suppressing a recirculation flow in the runner. The location of air suction hole on the chamber wall is very important factor for the performance improvement. Moreover, the ratio between air from suction pipe and water from turbine inlet is also significant factor of the turbine performance.