• 제목/요약/키워드: improvement of production

검색결과 3,095건 처리시간 0.036초

Surveillance and Improvement of Children′s Nutritional Status in China (1990-1995)

  • Fengying, Zhai;Yuna, He;Keyou, Ge
    • Journal of Community Nutrition
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    • 제3권1호
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    • pp.3-7
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    • 2001
  • The paper presented the effect of Surveillance and Improvement of Children's Nutritional Status in China The survery was conducted in 101 relatively poor counties in 27 provinces in 199-, 1993 and 1995 respectively. Physical measurement and blood biochemisty was take for 86, 397 children aged under five years. The intervention activities were carried out for 5 year in those 101 counties, e. g. nutrition education promotion of food production family poultry and livestock raising soybean production and utilization home gardening, nutrition food development for children Having the above mentioned measures the prevalence of stunting dropped by 21% wasting decreased by 25% and anemia lowered by 49% during 5 years It is suggested that it should be carried out continuously and promotion efforts should be intensified so as to reach the goal of improving children's nutritional status.

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Inhibition of methane formation and improvement of $H_2$ production by adding nitrate to anaerobic reactor

  • Kim, Jeong-Ok;Kim, Yong-Hwan;Ryu, Jeong-Yong;Song, Bong-Keun;Kim, In-Ho
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2003년도 생물공학의 동향(XIII)
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    • pp.129-134
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    • 2003
  • Anaerobic hydrogen production was executed using mixed anaerobic sludge. pH control (pH $5.5^{\sim}6.2)$ and heat treatment of anaerobic sluge at $92^{\circ}C$ was not effective for repressing the methane formation. The addition of $nitrate(500^{\sim}2,000\;mg/L\;KNO_3)$ made it possible to repress the methane formation, which resulted in the improvement of hydrogen production. By using SEM(Scanning Electron Microscope), less methane forming microbial with spagetti shape was observed when nitrate was supplied to anaerobic reactor.

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Animal Breeding: What Does the Future Hold?

  • Eisen, E.J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권3호
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    • pp.453-460
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    • 2007
  • An overview of developments important in the future of animal breeding is discussed. Examples from the application of quantitative genetic principles to selection in chickens and mice are given. Lessons to be learned from these species are that selection for production traits in livestock must also consider selection for reproduction and other fitness-related traits and inbreeding should be minimized. Short-term selection benefits of best linear unbiased predictor methodology must be weighed against long-term risks of increased rate of inbreeding. Different options have been developed to minimize inbreeding rates while maximizing selection response. Development of molecular genetic methods to search for quantitative trait loci provides the opportunity for incorporating marker-assisted selection and introgression as new tools for increasing efficiency of genetic improvement. Theoretical and computer simulation studies indicate that these methods hold great promise once genotyping costs are reduced to make the technology economically feasible. Cloning and transgenesis are not likely to contribute significantly to genetic improvement of livestock production in the near future.

공지통신무전기 성능개량을 위한 시험평가 방안 연구 (A Study of Test and Evaluation Method for Performance Improvement of Air to Ground Communication Radios)

  • 이병헌;안승범;최명석;허장욱
    • 한국군사과학기술학회지
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    • 제25권3호
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    • pp.267-274
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    • 2022
  • The Republic of Korea has a close cooperative relationship with NATO, of which the United States is a member. NATO is encouraged to follow UHF coalition waveforms for military air operations(SATURN) as defined in STANAG 4372. SATURN is a high-speed frequency hopping waveform with enhanced anti-jamming and security functions. Plans to improve the performance of existing military aircraft with air to ground radios to which SATURN function is applied. IFF case analysis and MRT evaluation plan were established to present an efficient test and evaluation plan for air to ground radios.

리니어 가이드 웨이의 접촉각에 관한 연구 (A Study on Contact angle of the Linear Guide Way)

  • 이선곤;박영기
    • 한국안전학회지
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    • 제24권4호
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    • pp.11-16
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    • 2009
  • This research investigates contact angle of Linear Guide Way through a experimental result and theoretical analysis. Since last ten years, most of researchers who concerned with the precision machinery and semiconductor device production etc. so the researches about Linear Guide Way have been unnoticed. The precision machinery and semiconductor device production system has the principle which transfers the mechanical moving to accuracy position control. The Linear Guide Way system has the principle which transfers mechanical moving to accuracy position control is very important to improve performance of the precision machinery and semiconductor device production system. So, In this research, in order to improvement for producing Linear Guide Way, bearing loading analysis and contact angle change through Linear Guide Way theoretical analysis and bearing modeling. Through this study, we may expect that there will be more improvement for producing Linear Guide Way.

QFD를 적용한 전자동 온도조절장치 개발사례 연구 (An Application of QFD to the Development of Full Automatic Temperature Controller)

  • 이기룡;박병춘
    • 품질경영학회지
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    • 제30권1호
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    • pp.61-73
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    • 2002
  • The Quality Function Deployment(QFD) is a Quality Management technique to maximize customers' satisfaction by reflecting customer requirements into all business processes, including concept definition, product planning, parts planning, process planning, production planning, and sales planning. The basic concept of the QFD is to translate customers' requirements appropriately into engineering characteristics, into parts characteristics, into process characteristics, and into specific requirements and activities in production. In this study, we reviewed and analyzed the application process of the QFD to the development of A2 FATC (Full Automatic Temperature Controller), an automotive component developed and produced by company A. It has been reported that by applying the QFD to the development of A2 FATC, company A. achieved 34% improvement in control robustness quality characteristic, 27% improvement in deviation quality characteristic, and 30% improvement in overall quality characteristics.

건설 근로자의 직업의식 실태분석 및 향상방안 (An Analysis on the Professional Perception of the Construction Worker and Its Improvement Measures)

  • 신원상;김민재;이강협;손창백
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2014년도 추계 학술논문 발표대회
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    • pp.210-211
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    • 2014
  • This study was conducted to present the improvement in professional perception among construction workers engaged in domestic construction sites by analyzing the reality of their professional perception. The results are as follows: First, with regard to professional perception of the construction industry, managerial workers made their positive reply to items regarding construction and construction workers but had their negative attitude towards construction as a job and as a recommendable job for others; whereas production workers showed their negative reply to all the items. Second, with respect to factors for construction being firmly regarded as an 3D industry, managerial workers selected 'long working hours' and production workers replied with 'low wages and income insecurity.' Third, as for improvement activities for professional perception of construction, most of construction workers simply knew about activities being performed but expressed their intention to participate in the activities.

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6 시그마 환경에서의 TOC/DBR 구현 (Implementation of TOC/DBR under Six Sigma environment)

  • 고시근;구평회;하재원;권혁무;김동준
    • 품질경영학회지
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    • 제32권2호
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    • pp.154-167
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    • 2004
  • The TOC/DBR and Six Sigma are the most attention-getting concepts for managing manufacturing companies in Korea. Using the ideas and methods of the TOC/DBR, companies can achieve a large reduction of work-in-process and finished-good inventories, significant improvement in scheduling performance, and substantial earnings increase. The Six Sigma approach derives the overall process of selecting the right projects based on their potential to improve performance metrics and selecting/training the right people to get the business results. These two concepts have different backgrounds and different viewpoints for production systems. So, if the two concepts collaborate each other, the synergy effects to innovate production systems can be expected. This paper proposes a new approach to implement the TOC/DBR concepts in production systems. This approach uses some concepts of Six Sigma which stresses educations, project approaches (step by step procedure using a Roadmap), and improvement philosophy.

3D애니메이션에서 제작관리프로그램의 필요성에 관한 연구 - 라이팅 제작파이프라인 중심으로 - (The Study about Necessity of Production Managing Program in 3D Animation - Focus on Lighting Production Pipeline -)

  • 이중호;김현조
    • 한국콘텐츠학회논문지
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    • 제6권5호
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    • pp.66-75
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    • 2006
  • 세계적인 애니메이션산업의 호황에도 불구하고 현재 국내에서는 여러 가지 많은 어려움에 봉착해있다. 2003년 개봉된 원더플데이즈 (Wonderful Days)의 흥행실패 이후 외부투자는 거의 끊어지다시피 했으며 각종 정부지원마저도 줄어들고 있다. 이러한 현실에서 애니메이션 제작자들에게는 기존의 제작시스템을 면밀히 점검하고 개선사항들에 대해서는 과감하게 칼을 들이대는 구조조정이 요구되고 있다. 기획력의 부재 등 과거부터 이어져온 고질적인 문제들과 더불어 제작시스템의 개선을 통한 일정단축과 비용절감도 중요한 문제이기 때문에 본 논문은 현재 업계에서 적용되고 있는 전체 3D 애니메이션 제작과정을 살펴보고, 문제점을 분석하여 애니메이션의 효율적인 제작시스템 여건을 위한 제작관리프로그램의 필요성을 제시하는데 그 목적이 있다.

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블로워 모터 소음의 내구성 고찰 (Durability Study of Blower Motor Noise)

  • 이명한;이강덕;황동우;이현희
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2007년도 추계학술대회논문집
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    • pp.1115-1119
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    • 2007
  • As in many of the vehicle NVH issues, blower motor noise has been improved over the years through intensive R&D and production process improvement. Durability of motors, however, still has room for improvement according to customer surveys such as VDS. To investigate the noise issues of blower motors in view of durability, current production motors along with major competitor motors are tested. The noise after accelerated durability test shows that production motors are competitive in noise level with similar noise performance compared to initial measurement. The test result also provided guidelines to the durability development process.

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