• 제목, 요약, 키워드: level of contribution

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UML과 온톨로지를 이용한 고객 등급 QoS/SLA 관리 (Client level QoS/SLA Management using UML and Ontology)

  • 하얀
    • 한국컴퓨터정보학회논문지
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    • v.16 no.2
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    • pp.243-248
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    • 2011
  • 멀티미디어 스트림 콘텐츠의 접근이 늘어남에 따라 웹 서비스가 매우 많이 사용되고 있다. 그러나, 웹 서비스는 자주 방문하는 사용자에게 매번 동일한 품질의 서비스를 제공하고 있지 않다. 따라서, 이 논문은 고객 등급 QoS에 접근하는 온톨로지를 설계한다. 이를 위해 사용자의 기여도에 따른 웹 서비스의 2가지 등급을 제공한다. 그리고, 본 논문은 이러한 QoS 프로파일과 SLA의 관계에 대해 UML 언어를 통해 기술한다. 본 논문의 가장 큰 의의는 고객 등급 QoS와 SLA, 그들 간의 관계를 지원하고, 이를 위한 온톨로지를 사용하는 것이다. 이것은 QoS와 SLA를 구성하는 온톨로지 기반 접근으로 웹 서비스의 의미적 분류를 가능하게 할 것이다.

중소기업 정보화수준 평가를 위한 정보시스템 감리모델 설계 (Design of Information Systems Audit Model for the Small and Medium Enterprise's Informatization Level Evaluation)

  • 김정환;김희완
    • 한국IT서비스학회지
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    • v.14 no.4
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    • pp.105-120
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    • 2015
  • Enterprise should determine the adoption and utilization of information systems would be a great help to increase management performance. So, it maintains continually the budget and the investment for informatization. However, there is a limit to clarify whether the investment in informatization is contributed to create business opportunities through corporate competitiveness certainty or not. We tend to recognize the information system as a simple means to support common business rather than being used to achieve the company's business performance and to remain competitive. It is not an easy problem for the quantitative evaluation and analysis on the effect of intangible, such as management performance measurement by introducing computerization project. Informatization level evaluation model for the harsh business environment, specifically the Small and Medium Enterprise is lacking. In this paper, we proposed the audit evaluation model of an Small and Medium Enterprise informatization level based on system quality, information quality, user satisfaction, and IT business contribution. The proposed audit evaluation model was evaluated in the information system users, and verified the suitability throughout the survey of the audit professionals.

중년기의 경제적 복지에 대한 인적자본과 사회자본의 상대적 효과 (The Relative Effects of Human Capital and Social Capital on the Economic Well-being of the Late Middle-aged in Korea)

  • 서지원
    • 한국가정관리학회지
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    • v.26 no.5
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    • pp.315-332
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    • 2008
  • The purpose of this study was to investigate the relative effects of human capital and social capital on the economic well-being of late middle-aged Koreans. The data from the first wave of KLoSA (Korean Longitudinal Study of Aging) aged 50-64 were used (n=4,040). The major findings were as follows: First, human capital and social capital are both resources that can contribute to increasing the economic well-being of the middle-aged. Second, the relative contribution of human capital to the economic well-being of the middle-aged varied by the level of social capital, including formal network and informal network. Third, the relative contribution of social capital to the economic well-being of the middle-aged varied by the level of human capital, including employment type and educational attainment. Based on empirical results, the implications for social investment in human capital and social capital were provided.

POLARIZATION OBSERVATIONS OF BACKGROUND RADIO SOURCES SEEN THROUGH THE SUPERNOVA REMNANT S 147

  • Kim, Kwang-Tae
    • 천문학회지
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    • v.21 no.2
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    • pp.133-153
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    • 1988
  • Linear polarization has been measured for fifteen extragalactic radio sources in the field of supernova remnant S 147. These observations were made at 4885, 4835, 1665, 1515, 1465, and 1385 MHz using the Very Large Array, primarily to determine unambiguous Rotation Measures (RM) of the sources. This yields a total of 11 new RM sources. Comparisons of a sample of sources which are seen through S 147 were made with sources located farther away. The result tentatively indicates that the distribution of the rotation measure of the former population is broadened, with more than a 85% level of confidence. This constitutes evidence that there is a SNR contribution to rotation measure in sources seen through the SNR. Limits on this RM contribution are statistically at 30 < | RM | < 70 rad $m^{-2}$ with a 85% statistical level of confidence. These result imply the magnetic field in the rim of S 147 has strength 10 microguass if the electron density is $1\;cm^{-3}$.

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Effects of Molecular Attraction and Orientations in the Vibration-Vibration Energy Exchange

  • Ree, Jong-Baik;Chung, Keun-Ho
    • Bulletin of the Korean Chemical Society
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    • v.7 no.2
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    • pp.124-129
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    • 1986
  • The effects of molecular attraction and orientations for the energy mismatch variance, vibrational energy level and double-quantum transition, in the vibration-vibration energy exchange, have been considered. The contribution of molecular attraction increases the exchange rate of the purely repulsive interaction, in general, significantly, but which becomes smaller as the temperature is increased. As the energy mismatch is increased, its contribution is also increased, but which is small. However, its contribution for the double-quantum transition is very paramount. At each orientation, the exchange rate constants have been calculated and compared with the results for rotational average, and it is found that the exchange rate is a strong function of the orientation angles of colliding molecules. We have also discussed about the system having the strong interaction such as the hydrogen bond, and it is found that for this system the preferred orientation should be considered in order to calculate the exchange rates.

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소음원 기여도 해석 및 벽면 투과손실에 대한 민감도 해석에 의한 한국형 고속철도의 실내소음 예측 (Interior noise prediction of the Korean high speed train using sound source contribution analysis and sensitivity analysis of wall′s transmission loss)

  • 김관주;박진규
    • 한국소음진동공학회:학술대회논문집
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    • pp.1093-1098
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    • 2001
  • The interior sound pressure level of the Korean high speed train is predicted using ray acoustic method. The motor car, motorized car and passenger cabin are investigated under the environment of passing open countryside and inside tunnel Calculated sound levels of KHST are compared with the those of KTX prototype which vehicle shows similar acoustic behavior with KHST for the purpose of assuring the calculated data. In order to reduce the calculated SPL in systematic way, contribution analysis of sound sources and sensitivity analysis of concerning wall's transmission loss on the SPL of the designated receiving points are carried out. Finally, practical design suggestions are proposed.

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다구찌 실험 계획법을 이용한 나선형 인덕터의 패턴드 그라운드 쉴드 최적 설계 연구 (Optimization of 'Patterned Ground Shield' of Spiral Inductor using Taguchi's Method)

  • 고재형;오상배;김동훈;김형석
    • 한국정보통신설비학회:학술대회논문집
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    • pp.436-439
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    • 2007
  • This paper describes the optimization of PGS(Patterned Ground Shield) of 5.5 turns rectangular spiral inductor using Taguchi's method. PGS is decrease method of parasite component by silicon substrate among dielectric loss reduction method. By using the taguchi's method, each parameter is fixed upon that PGS high poison(A), slot spacing(B), strip width(C) and overlap turn number(D) of PGS design parameter. Then we verified that percentage contribution and design sensitivity analysis of each parameter and level by signal to noise ratio of larger-the-better type. We consider percentage contribution and design sensitivity of each parameter and level, and then verify that model of optimization for PGS is lower inductance decreasing ratio and higher Q-factor increasing ratio by EM simulation.

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지식서비스산업의 구조변화 분석 (An Analysis on The Structural Change of The Knowledge Service Industry)

  • 김방룡
    • 한국통신학회논문지
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    • v.38B no.10
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    • pp.808-816
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    • 2013
  • 최근 들어 우리나라는 제조업 부문의 투자와 고용이 부진하여 잠재성장률이 둔화되는 가운데 신성장동력 및 일자리 창출부문으로서 지식서비스의 역할에 대한 관심이 고조되고 있다. 본 연구에서는 산출 및 고용측면에서 1995년에서 2010년까지의 기간 동안 우리나라의 지식서비스산업의 구조변화 양상을 분석함으로써 지식서비스산업이 경제성장 및 고용창출에 어느 정도의 기여를 하고 있는지를 살펴보고 지식서비스산업 육성을 위한 정책방향을 제시하였다. 지식서비스산업은 여타 산업에 비하여 총산출과 고용의 규모면에 있어서 국가전체에서 차지하는 비중은 그다지 크지 않지만, 타 산업에 비하여 가장 빠른 성장 속도를 보이고 있어서 우리나라의 총산출 증가와 고용 창출에 큰 기여를 한 것으로 나타났다. 하지만 산출증가율과 성장기여도는 점차 하락하고 있어서 지식서비스가 앞으로도 지속적으로 성장동력 및 고용창출에 기여하기 위해서는 생산성 증대를 위한 특별 대책이 요구된다.

전문대학 졸업생 역량 분석을 통한 전문대학 교육과정 방향성 제고 (A Suggestion on College Curriculum through the Competencies analysis of College Graduates)

  • 이병화;김수현
    • 한국산학기술학회논문지
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    • v.14 no.11
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    • pp.5448-5454
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    • 2013
  • 본 연구의 목적은 전문대학 졸업생의 전공지식과 직업기초능력에 대한 역량을 분석해 보고 전문대학 교육과정 개선에 기초적인 자료를 제공하고자 한다. 연구대상은 전문대학 졸업생 236명을 대상으로 연구를 진행하였으며, 전공지식과 직업기초능력에 대한 졸업생의 역량중요도-역량실행도를 분석하고, 역량중요도와 대학기여도 차이를 분석하였다. 분석 방법으로 대응표본 t-test와 IPA를 활용하였다. 전공지식과 직업기초능력에 대한 역량중요도와 역량실행도 간에 유의미한 차이가 있는지 분석한 결과, 12개 영역에서 유의수준 .001에서 유의미한 차이가 있는 것으로 나타났다. IPA 분석 결과 1사분면에 4개 영역, 2사분면에 1개 영역, 3사분면에 4개 영역, 4사분면에 3개 영역으로 나타났다. 역량중요도와 대학기여도 차이를 분석한 결과 12개 영역 모두 유의수준 .001 수준에서 차이가 있는 것으로 나타나 역량중요도에 비해 대학기여도가 낮게 나타났다. 본 연구결과는 전문대학에서 교육과정을 운영하는 데 있어 실질적인 데이터로 활용될 수 있을 것이다.

포도 '캠벨얼리' 품질에 미치는 토양이화학성의 상대적 기여도 (Contribution of Soil Pysico-chemical Properties to Fruit Quality of 'Campbell Early' Grapes in the Vineyards)

  • 김승희;최인명;윤석규;조정건;임태준;윤해근
    • 한국토양비료학회지
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    • v.42 no.3
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    • pp.187-191
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    • 2009
  • 'Campbell Early', a major grape cultivar, occupies more than 70% of cultivated vineyard areas, however, recommendable standard management system of soil environmental conditions has not been developed yet in Korea. The consideration for the correlation between fruit quality and soil condition in the vineyard is required in the efficient management system of soil. This study was carried out to investigate the optimum soil environmental conditions for 'Campbell Early' grape production with high quality. The results from analyses of correlation between them were used to develop soil management guideline for promoting efficiency in grape production. Soil properties were analyzed from 120 vineyards in Hawsung, Sangju, Yeongdong, Gimcheon, Yeongju, and Yeongwol, major grape production regions. Because there is neither coloring disorder nor delayed coloration in grape production of 'Campbell Early', relative contribution of soil hardness and solid phase to fruit quality and fruit weight was analyzed. Among the soil properties, while cation and soil hardness affected sugar content at the level of 39.3% and 36.8%, respectively, saturated hydraulic conductivity, solid phase, and cation exchange capacity (CEC) showed relatively low contribution to sugar content in the vineyard. The sugar content in grapes was influenced more critically by the chemical properties than the physical ones in the soil of vineyards. While soil hardness and solid phase affected grape weight at the level of 27.8% and 26.0%, respectively, phosphate content, organic matter content, and cation showed low contribution to grape weight. Grape guality such as sugar content and grape weight was affected highly by cation and organic matters. Therefore, cation and organic matter content of soil contributed to fruit quality at the level of 33.8% and 15.5%, respectively, in the vineyard.