• 제목/요약/키워드: life-time use

검색결과 1,785건 처리시간 0.034초

경기지역의 학교 급식 식재료 사용 현황 및 관리 직무 수행도에 관한 연구 (Food Utilization Status and Perceived Performance of food Management of School Food Service in the Kyunggi Area)

  • 신미혜;강근옥
    • 동아시아식생활학회지
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    • 제18권4호
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    • pp.592-600
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    • 2008
  • The perceived performance of food management and the food utilization status of school food service managers in nine sectors of management in the Kyunggido area were evaluated[ED highlight - please ensure this is correct]. The results of this study revealed that 84.5% of the service managers used domestic food and $20{\sim}40%$ used organic food, with an average of 80% using one of these types of foods. In addition, the average use of pre-handling food varied widely when compared to other food items[ED highlight - very confusing, please ensure my changes do not alter your intended meaning] Additionally, most respondents used frozen food (72.0%), processed food (83.9%), and substitute food (53.4%), for the average of 20%,[ED highlight - I cannot infer your intended meaning here, what is an average of 20%? Please clarify]; however, 40.6% did not use any food substitutes. The most common reason given for using pre-handled[ED highlight - do you mean pre-packaged or pre-prepared? Please clarify] food was to save time (32.2%), whereas frozen foods were most often used to help with menu organization (37.5%). Additionally, the respondents most common reason for using processed food was its high acceptability (47.8%), while substitute foods were most often used due to non suitable foods beingreturned (75.3%). Among the varieties of food that were used, those that are easily obtained and cooked were used the most. Furthermore, the mean score for the perceived performance of food sanitary management was $4.51{\pm}0.425$ (based on the 5-point Likert scale). Finally, it was generally believed that the overall food management well executed, but that more active management of unsatisfactory food suppliers is required[ED highlight - please ensure my changes do not alter your intended meaning].

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정보사회에서 어린이들의 스마트기기 이용생활에 대한 탐색적 연구 -초등학교 고학년을 중심으로- (The Exploratory Study of Children's Use of Smart Devices in Information Society)

  • 한병래;구정모
    • 정보교육학회논문지
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    • 제18권3호
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    • pp.423-432
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    • 2014
  • 컴퓨터를 포함한 정보기기의 보급이 늘어가면서, 어린이들이 정보통신기기를 사용하는 기회가 많아졌다. 우리는 어린이들의 생활이라는 관점에서 어린이들의 정보통신기기 이용에 대해 탐색적 연구를 실시하였다. 우리 사회는 어린이들에게 학교교육 중심의 학습을 장려하고 있다. 본 연구에서는 정보사회를 살아갈 어린이의 관점에서 정보통신기기를 이용한 생활의 모습을 살펴보고자 하였다. 연구의 결과 대도시와 중소도시에서의 어린이들의 정보기기 사용에는 차이가 있었다. 집단 전체 결과에서 정보통신기기를 이용한 학습의 경험, 올바른 기기 사용에 대한 경험이 부족한 것으로 나타났다. 비전자매체를 이용한 놀이에서는 야외 놀이가 더 많았으며, 게임이용 시간과 TV 시청시간의 비교에서는 절반 정도가 "1시간 이내"라고 응답하였다. 실내놀이의 비중이 많아진 것을 알 수 있었다.

로우폴리곤 게임 캐릭터 모델링 및 Character Primitives 제작 (Low polygon game character modeling and Character Primitives manufacture)

  • 강성중;김상진;이승현
    • 한국컴퓨터산업학회논문지
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    • 제7권5호
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    • pp.573-582
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    • 2006
  • 게임은 텍스트, 그래픽, 애니메이션, 동화상, 음악 등 모든 미디어가 서로 연결되어 게임의 스토리에 맞게 진행된다. 또한 게이머의 판단에 의한 전략 전술은 그 게임의 결과를 다르게 만들어 낼 수 있다. 본 논문에서는 이와 같은 게임을 개발하는데 있어서 핵심 구성원들 즉 게임 기획자, 게임 프로그래머, 게임 그래픽 디자이너들의 역할을 언급하였다. <중략>또한 게임 캐릭터를 처음 개발하는 초보자나 중급자를 대상으로 보다 빠른 모델링을 할 수 있도록 150개 이내의 폴리곤을 사용하여 $5\sim8$등신의 RT캐릭터 포맷을 만들어 그것을 기반으로 다양한 모델링을 개발을 할 수 있는 방법을 제시하였다. 그리고 그 SourceModel을 사용함에 있어서 3D Modeling 툴중 하나인 3D MAX 환경 안에 SourceModel이 포함된 Character Primitives 인터페이스를 제공함으로써 사용자가 게임 캐릭터 개발을 쉽고 빠르게 할 수 있도록 하였다.

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CBD 기반의 웹 시스템 개발 적응을 위한 컴포넌트 기술 비교 평가 (Comparison and an evaluation of a component technology for a Web system development and application based on CBD)

  • 나윤지
    • 한국콘텐츠학회논문지
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    • 제2권4호
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    • pp.59-66
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    • 2002
  • 정보화 사회가 고도화될수록 소프트웨어의 개발은 복잡해지고 대규모화되고 있다. 또한 소프트웨어의 라이프사이클 단축으로 개발기간의 단축이 절실하게 요구되고 있는 실정이며 개발된 소프트웨어의 생명주기도 짧아지고 있어 개발 및 유지보수가 더욱 어려워지고 있다. 이에 따라 소프트웨어의 개발에서 미리 구현된 컴포넌트를 사용하여 개발비용과 시간을 단축하려는 노력이 증가하고 있다. 컴포넌트 기술은 현재 매우 빠른 속도로 발전하고 있으며, 기존의 소프트웨어 개발 방법 뿐 아니라 웹 기반 시스템의 개발에도 큰 변화를 가져오고 있다. 본 논문에서는 CBD 기반의 웹 시스템의 개발을 위한 관련 기술을 살펴보고, 특히 중소규모의 웹 시스템 개발에 대한 적용을 위해 기존 컴포넌트 기술들을 비교 분석하여, 문제점을 도출하고 이를 바탕으로 컴포넌트를 기반으로 한 웹 시스템의 개발ㆍ활용의 효율성을 높이기 위한 방안을 제안하였다. 본 연구결과의 활용을 통해 CBD기반의 중소 규모 웹 시스템 구축에서 개발비용을 감소시키고 유지 관리의 부담을 경감시킬 수 있을 것으로 기대된다.

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스마트 센서를 이용한 선박용 승강기 실시간 모니터링 시스템의 구현 (Implementation of Real-time Monitoring System for Marine Elevator using Smart Sensors)

  • 이우진;임재홍
    • 한국멀티미디어학회논문지
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    • 제19권2호
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    • pp.405-410
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    • 2016
  • Elevator industry is a field that is mechanical, electrical and electronic technology and constantly requires inspection and maintenance considering various applications and various types. Recently, various elevator control and monitoring technologies with IT are developing for elevators on land. But technologies with IT have been hardly done in marine elevator that is consistently assured safety and reliability of life cycle for its parts in poor environment. In this paper, we implemented embedded main controller, floor controller and car controller that meet the requirements and use NMEA network protocol by analyzing home and abroad integrated elevator operation and management systems. Especially, we secured reliability of maintenance by real-time fault diagnosis and control that was implemented with limit switch, gyro sensor, temperature/humidity/barometric pressure sensor and fire detection sensor thinking over the environmental conditions of terrestrial and marine elevator.

coaxing 효과가 피로한도에 미치는 영향에 관한 연구

  • 이종형;유덕상;송득중
    • 한국산업융합학회 논문집
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    • 제5권1호
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    • pp.3-9
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    • 2002
  • In the field of design of mechanical structure and expectation of life time, characteristic of fatigue limit comes out to he the most important problem. In this paper, in order to get fatigue limit, (I) investigate the aspects of economy, time and confidence comparing two methods: the method by fracture probability introducing statistical conception and the staircase method. And (II) examine the experience approaching fatigue limit and coaxing effect. The value of fatigue limit by staircase method in very effective in view of practical use, and coaxing comes out by the same material effect as restraining crack progress, not as strengthening the tip of crack alone.

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COMPUTATIONAL DURABILITY PREDICTION OF BODY STRUCTURES IN PROTOTYPE VEHICLES

  • Kim, H.-S.;Yim, H.-J.;Kim, C.-B.
    • International Journal of Automotive Technology
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    • 제3권4호
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    • pp.129-135
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    • 2002
  • Durability estimation of a prototype vehicle has traditionally relied heavily on accelerated durability tests using predefined proving grounds or rig tests using a road simulator. By use of those tests, it is very difficult to predict durability failures in actual service environments. This motivated the development of an integrated CAE (Computer Aided Engineering) methodology for the durability estimation of a prototype vehicle in actual service environments. Since expensive computational costs such as computation time and hardware resources are required for a full vehicle simulation in those environments with a very long span of event time, the conventional CAE methodologies have little feasibility. An efficient computational methodology for durability estimations is applied with theoretical developments. The effectiveness of the proposed methodology is shown by the comparison of results of the typical actual service environment such as the city mode with those of the typical accelerated durability test over the Belgian road.

초등학교 저학년 자녀에 대한 어머니의 교육투자행동 (Education Investment Behavior of Mothers about Children of the Lower Greades in Primary School)

  • 민순선;이기영
    • 가정과삶의질연구
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    • 제18권3호통권47호
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    • pp.115-128
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    • 2000
  • The purpose of this study was to investigate investment behavior of mothers who have children of the lower grades in primary school and the effects of the variables. The subjects of this study were 454 mothers who have children of lower grades in primary school in Seoul. Statistics used for data analysis were frequency, mean, percentage, multiple regression. The households which paid their money for private education investment cost was 182.543 won a month and the mean of time use of mother for child education was 125 minutes a day. The most influencing variable on money investment to private education investment behavior was family income and on time investment to it was influence of reference group.

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WSN 환경에서 전송률 향상을 고려한 화재감지 모니터링 시스템 구축에 관한 연구 (A Study on the Implementation of A Fire Detection Monitoring System to Improve Data-Rate in WSN Environment)

  • 이재수;윤찬영
    • 조명전기설비학회논문지
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    • 제25권2호
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    • pp.96-102
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    • 2011
  • There are many problems with the fire detection devices being used in currently, because it is difficult to find location of the source of fire and determine where devices are working or not. In this paper, we proposed fire detection and rescue system using wireless sensor network that can be real-time monitoring and determine safe exit. Fire detection and rescue system based on ubiquitous sensor network can know exactly source of fire and help determine rescue tactics using sensing data from wireless sensor nodes. Transmitted wirelessly in real-time thermal sensor and gas sensor information to analyze the GUI to monitor the status information output to the screen by use of a system implemented in everyday life, looked at the possibility.

USN 기반의 실시간 컴팩트 타워 감시 시스템 구축 (Development of Compact Tower Monitoring System based on USN)

  • 김지영;우덕제;이정현;최종필;장준용;김용광
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2011년도 제42회 하계학술대회
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    • pp.570-571
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    • 2011
  • CTMS(Compact Tower Online Monitoring System), which deals with the polymer insulation arms of new material, is the on-line monitoring system for verifying stability and reliability of a new Compact Tower. CTMS measures real time data from the installed sensors in a Compact Tower and transmission line, air craft warning lights for detecting and determining the life time and the replace cycle of these facilities. This paper introduces how develop the CTMS and proposes how it will be use.

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