• Title/Summary/Keyword: Model-based development process

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A Study on development of privacy indicators in the context of cloud service level agreement (클라우드 개인정보보호를 위한 SLA 지표 개발)

  • Kim, Jungduk;Park, Dae-Ha;Youm, Heung-Youl
    • Journal of Digital Convergence
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    • v.13 no.2
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    • pp.115-120
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    • 2015
  • As the cloud services, the underlying technology of the digital convergence environment, have been widely adopted in the business, personal information protection has been recognized as one of the major issues to resolve. When cloud services are used to process the personal information, the personal information protection law speculates the establishment of a contract or service level agreement(SLA). This research presents 7 privacy indicators and 13 metrics which can be included in cloud SLA, based on the analysis of related regulation and standards and the SMART(Specific, Measurable, Action-oriented, Relevant and Timely) model. The proposed indicators are examined using the Focus Group Interview method in terms of materiality and feasibility. The results show that all the proposed indicators are meaningful and useful.

Development of An Integrated Optimal Design Program for Design of A High-Efficiency Low-Noise Regenerative Fan (재생형 송풍기의 고효율 저소음 설계를 위한 통합형 최적설계 프로그램 개발)

  • Heo, Man-Woong;Kim, Jin-Hyuk;Seo, Tae-Wan;Koo, Gyoung-Wan;Lee, Chung-Suk;Kim, Kwang-Young
    • The KSFM Journal of Fluid Machinery
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    • v.17 no.1
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    • pp.35-40
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    • 2014
  • A multi-objective optimization of a regenerative fan for enhancing the aerodynamic and aeroacoustic performance was carried out using an integrated fan design system, namely, Total FAN-Regen$^{(R)}$. The Total FAN-Regen$^{(R)}$ was developed for non-specialists to carry out a series of design process, viz., computational preliminary design, three-dimensional aerodynamic and aeroacoustic analyses, and design optimization, for a regenerative fan. An aerodynamic analysis of the regenerative fan was conducted by solving three-dimensional Reynolds-averaged Navier-Stokes equations using the shear stress transport turbulence model. And, an aeroacoustic analysis of the regenerative fan was implemented in a finite/infinite element method by solving the variational formulation of Lighthill's analogy based on the results of the unsteady flow analysis. An optimum shape obtained by Total FAN-Regen$^{(R)}$ shows the enhanced efficiency and decreased sound pressure level as much as 1.5 % and 20.0 dB, respectively, compared to those of the reference design. The performance test was carried out for an optimized regenerative fan to validate the performance of the numerically predicted optimal design.

Design and Implementation of an Item Pool System for Remote Education (원격교육 평가를 위한 문제 은행 시스템의 설계 및 구현)

  • Lee, Young-Hyun;Kang, Seong-Guk;Kim, Myeong-Ryeol
    • The Journal of Korean Association of Computer Education
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    • v.3 no.1
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    • pp.117-126
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    • 2000
  • The development of information system and communication gave us new education model, called remote education. And the remote education, being free from constraint of time and space and using various multimedia resources, has helped and substituted public educations, and has enlarged the area because of a lot of advantages and educational possibility compared to public educations. But it is very insufficient to study on analysis system which can analyze the learner and improve the educational process compared to various contents and education methods. In this study, we realized web-based item pool system which can remove the inefficiency of making duplicated and one-time used questions and which can manage and evaluate learners' achievements more efficiently. This program can give us quality improvement of remote education by raising efficiency of production with various pattern of paper making and item pool type management of items made and by executing high quality analysis with various pattern to the learner.

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A Study of Pace Strategy & Correlation of Product Liability Management Activity, Enterprise Value (제조물책임(製造物責任) 관리활동(管理活動)과 기업(企業) 가치(價値)간의 상관관계 및 대응전략(對應戰略) 연구)

  • Min, Dong-Seong;Chang, Seog-Ju;Park, Roh-Gook
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.3 no.3
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    • pp.17-65
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    • 2008
  • The manager of manufacturing industry just not to have known to do related to the law of Product Liability that was put into operation in July 2002. The law of PL is a public law about defective product, which was established in order to compensate consumer's damages of property and body caused by product, to make sound society by the safety products and to take international competitiveness. The economic effects by the law of Product Liability are the increase of consumers relief production cost by the lawsuits. Product liability as a process has developed significantly in the United Kingdom and the United States of America. The rapid introduction of product liability has recently been a prevalent phenomenon, as global changes arising from rapid development in science and the economy have resulted in a highly interconnected world economy. This thesis was established, based on current literature and business consulting cases in the position of companies, and is one of the operating subjects in a system for legal responsibility in manufactured products. However, there are limitations in the fact that research theories are only able to present a theoretical model and directions. In this context, managers and personnel of multiple companies cannot adequately respond to the recently enforced Product Liability Act. The major findings are summarized as Product Liability Management Activity are positively Correlation of Enterprise Value.

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Design Development of Shirts in Outdoor-Wear for New Senior Women's Using 3D Simulation Software - CLO 3D - (뉴 시니어 여성을 위한 아웃도어 웨어 디자인 개발 - CLO 3D를 활용한 여름용 상의 디자인 -)

  • Ji, Kyoungha;Choi, Yoonmi
    • Journal of the Korean Society of Costume
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    • v.65 no.5
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    • pp.62-73
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    • 2015
  • The aim of this research is to propose the final shirt design modified for new senior women that fulfills their emotional and physical needs. The modifications were based on the results of in-depth interviews and literature search, and the study was conducted in order to understand the desires and preferences of senior women, as consumption of outdoor-wear by the group continues to increase. To develop the design of outdoor-wear that satisfies the physical and emotional qualities and preference of the new senior women, six different designs with lines, combined materials, as well as materials that were layered, pleated and draped were proposed using virtual-dressing simulation software. Then, the modified designs were derived from the six original designs by reflecting the opinions collected in the in-depth interviews with eleven women in their 50s. The responses in the interviewed showed a preference for lines, pleats and layers, as these features made the clothes look trendy, gave it a slender-look, and improved the body shape of the women. As the color is the critical factor for outdoor-wear, there was an overwhelming preference for primary colors by the women, which was in contrast to their color preference in general clothes. A sleeve design modification was proposed to convert the half-sleeves to 3/4-long sleeves in order to account for changes in body temperature at menopause, and to satisfy the aesthetic needs for covering wrinkles. Research of new senior outdoor-wear designs will help segment and differentiate strategies for the increasingly fierce competing outdoor market, as well as l provide directions in the design creation process using the simulation of 3D virtual model.

Analysis on Logistics Efficiency of China's Agricultural Products Cold Chain from the Green Perspective

  • Qi, Lu;Chung, Gi-Young;Kim, Hyung-Ho
    • International Journal of Advanced Culture Technology
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    • v.8 no.2
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    • pp.192-203
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    • 2020
  • Although the market demand for cold-chain logistics of agricultural products in China is growing rapidly, the technology and scale of cold-chain logistics in China still lag behind the developed countries, resulting in large energy consumption. In our country, many authors have studied the efficiency of cold-chain logistics by using analytic hierarchy process and data envelopment method, but they haven't eliminated the influence of environmental factors and random error factors on the efficiency of cold-chain logistics, and most of them are limited to regional research. Therefore, in this paper, the three-stage DEA method is used. Based on the green logistics idea, firstly, the efficiency of 29 listed logistics enterprises in China is analyzed. Secondly, this paper uses SFA model to exclude the influence of environment and error factors on the analysis results, taking the enterprise's operating years, local GDP and the proportion of cold chain assets as environmental variables. Finally, this paper estimates the efficiency value again by adjusting the input value. The results are as follows: the main reason of high efficiency enterprises is to achieve scale efficiency. So the scale of assets should be maintained or appropriately expanded. At the same time, the economic development and the number of years of enterprise establishment will significantly affect the efficiency of cold-chain logistics. The influence of these environmental variables on the accuracy of the analysis conclusion should be fully considered.

Design and Development Research of a Parametric Array Transducer for High Directional Underwater Communication (고지향 수중 통신을 위한 파라메트릭 어레이 트랜스듀서의 설계 및 개발 연구)

  • Hwang, Yonghwan;Je, Yub;Moon, Wonkyu
    • The Journal of the Acoustical Society of Korea
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    • v.34 no.2
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    • pp.117-129
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    • 2015
  • A parametric array is a nonlinear phenomenon that generates a narrow beam of low-frequency sound using the nonlinearity of the medium. The low-frequency sound so generated has a low sound pressure compared with that of sound generated directly. Consequently, a transducer that can generate a primary wave with high directivity and level is required. This study designed, fabricated, and evaluated a multi-resonance transducer as a parametric array source. The designs of the unit transducers and array transducer were based on an analysis model. The design process was repeated to fabricate the optimum transducer. The fabricated transducer array can generate a 189 dB, 190 dB primary wave level at 6.3 m and a 134 dB difference frequency wave using the parametric array phenomenon. The difference frequency wave has a frequency of 15 kHz and high directivity with an $8^{\circ}$ half power beam width in a $12{\times}18{\times}10m$ water tank.

A Study on Make-up Design with Application of Genre Deconstruction in Hybrid(Ver. 2) (하이브리드의 탈 장르화를 응용한 메이크업 디자인에 관한 연구(제 2보))

  • Barng, Kee-Jung;Kim, Kyung-Hee
    • Journal of Fashion Business
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    • v.16 no.2
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    • pp.88-107
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    • 2012
  • Hybrid implies that elements in more than two are combined, and is what is merged and used complexly the technologies and materials in several fields according to the development in scientific technology and the progress in technology. In the formative and artistic aspect, the hybrid can be said to be phenomenon that two of mutually different genres are combined. The function and form in each genre, which were combined at this time, are remained wholly or partially, thereby revealing as well without hiding a fact of having been combined. In the digital communication era, the same time level was integrated into one culture, with destroying the temporal·spatial boundary. As for the objectives of this study, first, the aim is to suggest a model for researching into make-up by grasping the developmental process and the characteristics of hybrid art through considering an art theory of hybrid, which was shown in make-up. Second, the aim is to design make-up by analyzing trend by make-up style after applying the genre deconstruction in hybrid. The modern make-up design through genre-deconstruction characteristics beyond diverse plurality and genre could be known to be highlighted as aesthetic characteristic by a slight attempt as communication of open space, which connects culture and genre, which had failed to be recognized and was neglected. Through the results of this study, it could be known that there is infinite possibility in developing make-up design in line with modern sensation through aesthetic element and symbolic significance through genre deconstruction. Based on these findings, its significance can be said to be in substantially contributing to offering new sight to the design & formative characteristic and the expression mode in future make-up, to providing basic data, and to strengthening competitive edge of culture and art.

A Concept Analysis of Slow Nursing (느린 간호의 개념 분석)

  • Woo, Hyeon-Mi;Park, Jeong-Sook
    • Journal of the Korea Convergence Society
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    • v.11 no.5
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    • pp.381-389
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    • 2020
  • Patients, particularly elderly patients, need nursing appropriate to their characteristics and pace, whereas 'fast nursing' is actually emphasized in Korea. Hence, this study attempts to identify the characteristics of 'slow nursing' in Korea. Walker & Avant's approach to concept analysis was performed through a literature review on the concept of 'slow nursing.' A literature search and concept analysis, using the keywords of 'slow,' 'slow nursing' and 'slow prescription' in Pubmed, Riss, NDSL, DBPIA, and Google Scholar from 2000 to 2019, yielded the following attributes of 'slow nursing': 'respect for the speed of the subject,' 'carefulness,' 'comfort in the process,' 'participation' and 'consideration of the meaning of life.' Model cases were derived based on these attributes. Predisposing factors involved in 'slow nursing' include patient malfunction, psychological deflection, indifference, fear of treatment, and lack of willingness to live. The outcomes were a discovery of patients' potential capacities, recovery of confidence, health promotion, improved communication with medical staff, confidence, and self-integrity. It is expected that the development of measurement tools using the attributes of 'slow nursing' would contribute to patient nursing and research in the future.

A Study on the Air Flow Characteristics in an Apartment Complex and Ventilation Performance of an Individual Unit for Improving IAQ (주동형태 변화에 따른 아파트 단지내 기류분석 및 단위주호의 환기성능에 관한 연구)

  • Lee, Jung-Hyun;Lee, Seung-Hee;Kim, Taeyeon
    • KIEAE Journal
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    • v.5 no.3
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    • pp.11-16
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    • 2005
  • The recent trends of high-density and high-rise in apartment housing have caused the problems of decrease in ventilation rates and increase of indoor pollutant contaminants. SHS(Sick House Syndrome) has now become a major issue and threats the health of residents. To solve these indoor air problems, increase in ventilation rate is considered as one of the most efficient approach. Thus, the recent housing development is pursuing improvement in the site design and the layout of apartment building blocks to promote natural ventilation is now investigated as one of the fundamental solutions. This study was focused on the air flow characteristics of outdoor environment in an apartment complex to keep the pollutants out of the site. Age of air and pressure difference have been used as indices of the outdoor air quality. Four different types of apartment building layouts have been analyzed by CFD simulation. This study again selected a real apartment housing complex as a case study model. By analyzing the pressure differences between the front and rear of an apartment building block, the ventilation performance in each individual unit was evaluated, and its impact on ventilation performance is investigated by analyzing the stagnant air around the apartment building blocks. During this process, existing patterns of apartment housing layout have been evaluated, and the most appropriate site layout has been chosen to analyze the outdoor airflow patterns. Based on the analysis of airflow patterns of site layout, the possibilities of improving ventilation performance of an individual apartment housing is proposed.