• 제목/요약/키워드: Technological Quality

검색결과 631건 처리시간 0.032초

A Study on the Distribution Structure of Italian Fashion Product

  • Kim, Mun-Young;Bonin, Laura Maria;Cho, Woo-Hyun
    • International Journal of Costume and Fashion
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    • 제7권1호
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    • pp.1-10
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    • 2007
  • The Italian fashion industry has achieved a remarkable success in the global market with the distinctive features of its industry structure and product quality, and such a system has been subject to many researches. Especially, the retail structure centered on small speciality retail stores rather than the industry structure of medium and small sized companies and department stores is thought to be the most noticeable distinctive feature that differentiates the Italian fashion industry from other countries. This system is thought to be a driving force behind the continuous development and innovation closely associated with the market. In result, As medium and small size companies are the center of the Italian fashion industry, advantages of small companies based on region, that is, flexibility and innovation of medium and small size companies, close cooperation between companies are utilized and it has been progressing closely with the Italian traditional culture and being modernized based on traditional technological skills.

CBN 숫돌을 이용한 연삭에서 공작물의 표면성상 분석 (Analysis on Surface Characteristics of the Workpiece in the Grinding by CBN Wheel)

  • 이영석;곽재섭;하만경;구양;윤문철
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2001년도 춘계학술대회 논문집
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    • pp.1105-1108
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    • 2001
  • In these days, according s the increase of technological development the part demension goes up for ultra-precision. It is grinding behavior that is important processing which directly influences by machining accuracy at product quality with the net shape manufacturing. In this study, by using CBN wheel an analysis carried out for workpiece's profiles and its characteristics by measuring grinding force and surface roughness. Workpiece materials were used STD11, SUS304 and STB2 varing condition of feedrate and depth of cut.

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스마트 그리드(스마트 에너지)의 스마트 시티에의 통합에 대한 문헌 연구 (Review on Integration of Smart Grid into Smart City)

  • 심민규
    • 한국전자거래학회지
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    • 제25권1호
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    • pp.35-43
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    • 2020
  • 효율적인 에너지 운영을 목표로 하는 스마트 그리드는 인간의 삶의 질의 향상을 목표로 하는 스마트 시티의 일부로 자리 잡을 것이다. 이 논문에서는 성숙된 스마트 그리드의 모습이 스마트 시티에 자연스럽게 통합되는 모습임을 논증한다. 또한, 스마트 시티의 핵심 구성요소로서 스마트 그리드의 모습을 그리고, 이에 필요한 제도, 인프라, 기술 요소에 대한 문헌을 조사한다.

안전관리와 예비대책 변화 방향 (The Change of Safety Management and the Safety Counter-plan)

  • 서지한;서광규;고용해
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2002년도 춘계학술대회
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    • pp.15-21
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    • 2002
  • In the future, all kinds condition of industrial safety is a primary need in all advanced countries in which workplace safety is an issue. Furthermore, the increasing complexity of production systems and the rapidity of technological innovation have consolidated the recognition of the strategic value of safety, alongside the traditional competitive factors such as quality, costs, delivery time and flexibility, In this paper, the some critical issues of changes and counter-plan in an adequate safety management were identified by above considerations as follows: needs of systematic identification and analysis of safety factors; requirements to define priorities and budgeting to support the decision-making process; and needs of audit activities and indicators which measure company performance in terms of safety improvements, and so on.

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Improved Contrast for Threshold Random-grid-based Visual Cryptography

  • Hu, Hao;Shen, Gang;Fu, Zhengxin;Yu, Bin
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제12권7호
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    • pp.3401-3420
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    • 2018
  • Pixel expansion and contrast are two major performance parameters for visual cryptography scheme (VCS), which is a type of secret image sharing. Random Grid (RG) is an alternative approach to solve the pixel expansion problem. Chen and Tsao proposed the first (k, n) RG-based VCS, and then Guo et al., Wu et al., Shyu, and Yan et al. significantly improved the contrast in recent years. However, the investigations on improving the contrast of threshold RG-based VCS are not sufficient. In this paper, we develop a contrast-improved algorithm for (k, n) RG-based VCS. Theoretical analysis and experimental results demonstrate that the proposed algorithm outperformers the previous threshold algorithms with better visual quality and a higher accuracy of contrast.

철강 압연제품의 제조기술 및 응용 (Manufacturing Technologies and Applications of Steel Strip Products)

  • 권오준
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
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    • pp.10-21
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    • 1999
  • Recent progress in manufacture of hot and cold rolled steel strip products and their applications were reviewed. The main trend in the technological development has been to meet the customers' requests for quality improvement and cost reduction. The weight reduction to reduce the fuel consumption is the main issue in the automotive industry and, therefore, various steels have been developed to improve formability as well as strength. The steels include super-EDDQ steels, bainitic steels, TRIP steels, etc. In the oil industry, efforts have been focused to improve strength together with either low temperature toughness or HIC/SSCC resistance. The packaging industry is also a highly competitive market, and steel and canmaking companies have worked cooperatively to develop cost-effective canmaking processes as well as high performance steels. This type of cooperation has also been found important in other industries such as the appliance and electronic industries for the benefits of both steelmakers and customers.

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정전용량센서를 이용한 레이저 간섭계 오차보정 (Error Correction of Laser Interferometer Using Capacitive Sensor)

  • 김재천;서석현;전재욱;박기헌;유관호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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    • pp.342-344
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    • 2006
  • During last years, large investments have been directed to development and research of nano-technological products like semiconductor, display panel, optic-fiber communication components, life technology, and ultra-precision components. All quantitative measurements at nanometre scale should guarantees accurate results and high quality. Laser interferometer is one of most famous nanometre scale devices to be able to measure metre-scale distance with nanometre scale resolution, but it is easily affected by various error causes like geometrical, instrumental and environmental factor. On the other side, capacitive sensor is robust to above error factors, but it is able to measure relatively shorter distance, under $100{\mu}m$, than laser interferometer. New error correction method for laser interferometry using capacitive sensor will be introduced in this paper.

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Recent Development in Embryo Technology in Pigs - Review -

  • Niwa, K.;Funahashi, H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제12권6호
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    • pp.966-975
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    • 1999
  • Technologies on preimplantation porcine embryos have been developed quickly and significantly. Successful development of systems for culture of porcine zygotes to the blastocyst stage has made it possible to utilize follicular oocytes for in vitro production of embryos and thus stimulated research on various embryo technologies. Recent technological development of embryo cryopreservation, separation of X- and Y-bearing spermatozoa and non-surgical embryo transfer has also made it easy to utilize in vivo- and in vitro-produced embryos for artificial manipulation to produce clones and transgenic pigs. Further progress in overcoming various problems associated with each embryo technology will result in acceptable efficiency to utilize porcine embryos with a high or increased quality. Combining these technologies will accelerate further expansion of the swine industry not only for meat production but also for the production of therapeutic recombinant proteins and xonografts.

디지탈 제어용 CT의 국제규격(IEC 60044-8)에 대한 검토 (A Study about International Standard of Digital Controlled CT)

  • 정영환;김정배;송원표;김덕수;고희석
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 C
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    • pp.1794-1796
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    • 2002
  • Conventional current transformers possess many qualities due their simplicity. However, the technological innovations now underway in the field of switchgear and substation control systems tends to underline their drawbacks. New technologies must be developed to provide users with better service quality in terms of precision, operating safety and interoperability. The current transformer presented combines simplicity and the high degree of precision offered by Rogowski coils with the processing possibilities of digital electronics.

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HWCVD 계면 보호층을 적용한 실리콘 이종접합 태양전지 연구 (Silicon Heterojunction Solar Cell with HWCVD Passivation Layer)

  • 박상현;정대영;김찬석;송준용;조준식;이정철;최덕균;윤경훈;송진수
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2009년도 추계학술대회 논문집
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    • pp.346-346
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    • 2009
  • For high efficiency hetero junction solar cell over 20%, good silicon wafer passivation is one of the most important technological factor. Compared to the conventional PECVD technique, HWCVD has appeared as an promising alternative for high quality passivation layer formation. In this work, HWCVD passivation layer characteristics have been intensively investigated on wafer surface treatment, Hydrogen density in deposited thin layer and thermal effects in deposition process. Comprehensive results of the individual process factors on interface passivation has been discussed and resultant silicon hetero junction solar cell characteristics has been investigated.

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