• 제목/요약/키워드: hanging up

검색결과 42건 처리시간 0.025초

버어리종 건조시 급건엽발생방지에 관한 연구 III. 환기조건이 급건엽발생에 미치는 영향 (Studies on the Prevention of Excessive Drying Leaves during Burley Tobacco Curing III. Effect of the Ventilating Conditions on the Occurrence of Excessive Curing Leaves)

  • 배성국
    • 한국작물학회지
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    • 제32권2호
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    • pp.130-136
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    • 1987
  • 공시품종인 Burley 21을 수확한 후 건조하고 무더운 시기에 처리하여 건조하우스의 환기시기, 환기량 및 달줄간격 등의 건조실관리에 따른 급건조방지 방법을 밝히고자 시험한 결과 요약하면 다음과 같다. 1. 건기에는 건조시 시종환기구에서 온도가 낮았고 급건엽발생도 제일 적었다. 2. 급건엽발생시기는 황변말부터 갈변말까지로 이 시기에 탈수를 지연시키는 것이 가장 중요하다. 3. 급건엽발생이 적을수록 품질 및 물리성이 양호하였다. 4. 측면을 1.5m로 충분히 환기시킨 구에서 급건엽발생이 가장 적었다. 5. 달줄간격을 좁힐수록 온도에는 크게 영향을 미치지 않았으나 온도는 높게 유지하여 급건엽발생을 크게 감소시켰다. 6. 급건엽의 내용성분은 충분히 분해가 일어나지 않았다.

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BELBIC을 이용한 Rotary Inverted Pendulum 제어 (Control of a Rotary Inverted Pendulum System Using Brain Emotional Learning Based Intelligent Controller)

  • 김재원;오재윤
    • 한국생산제조학회지
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    • 제22권5호
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    • pp.837-844
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    • 2013
  • This study performs erection of a pendulum hanging at a free end of an arm by rotating the arm to the upright position. A mathematical model of a rotary inverted pendulum system (RIPS) is derived. A brain emotional learning based intelligent controller (BELBIC) is designed and used as a controller for swinging up and balancing the pendulum of the RIPS. In simulations performed in the study, a pendulum is initially inclined at $45^{\circ}$ with respect to the upright position. A simulation is also performed for evaluating the adaptiveness of the designed BELBIC in the case of system variation. In addition, a simulation is performed for evaluating the robustness of the designed BELBIC against a disturbance in the control input.

진자슬래브에 의한 진동제어시스템의 적용성 평가 (Study on the Application of Tuned Pendulum Slab Damper system (TPSD) to Building structure)

  • 김양중;서근배
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2012년도 추계 학술논문 발표대회
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    • pp.181-184
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    • 2012
  • The Tuned Pendulum Slab Damper(TPSD)system is mainly composed of suspended pendulum slab which was hanging with cable wire from the top floor of building without any extra loads structurally, and can be helpful to reduce vibration with effect of tuned mass damper function by the principle of pendulum movement. The experiment was performed with miniatures of the 30stories of steel structure building by the forced vibration test using shaking table, and the result was reduced about 42% of vibration. The purpose of this study was to make analysis of application of the TPSD system to new building and exist building against strong wind or seismic wave. The result of this study was that the TPSD system shall be satisfactory in field of execution, process control, safety and economical efficiency with saving up to 70% of construction cost.

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고속충돌시험기 개발 및 부재의 충돌특성 실험에 관한 연구 (I) (A Study on the Development of Test Rig for High Speed Frontal Crash and Test of Members ($\textrm{I}$))

  • 강신유;장인배;김헌영;정규진;박경환
    • 한국정밀공학회지
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    • 제17권6호
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    • pp.119-126
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    • 2000
  • In this paper. a simple high-speed crash test rig for members of vehicle was developed for the improvement of crashworthiness of vehicle's side rail. The cart hanging the specimen is accelerated up to 35 mph by the force of freely dropping weight and 1:3 accelerating pulleys. The cart with shock absorbers travels on the rail roads, so it does not transfer any additional vibration to the specimen. To measure the test results, two types of accelerator are considered. the one is a strain gage type and the other is a piezo type. The test rig is rated good to test the specimen like a side rail of vehicle as developing the vehicle's structures in the early design stage.

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A Study on the Development of Test Rig for High Speed Frontal Crash and Test of Members

  • Shin-You. Kang;In-Bae. Chang;Jang, Hye-Jeong
    • International Journal of Precision Engineering and Manufacturing
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    • 제3권3호
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    • pp.21-27
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    • 2002
  • In this paper, a simple test rig of high-speed crash for the front members of vehicles was developed for the improvement of crashworthiness of vehicle's side rail. The cart hanging the specimen is accelerated up to 35 mph by the traction wire and by the force of freely dropping weight and 1:3 accelerating pulleys. The cart with shock absorbers travels on the rail roads, so it does not transfer any additional vibration to the specimen. In order to measure the energy absorbed by the specimen when it collapse to the wall and during it deform, the two strain gage type load cells are used at the wall place. The test rig rated good to test the specimen like a side rail of vehicle as developing the vehicle's structures in the early design stage.

새로운 유지전극 구조에 의한 ac-PDP 에서의 효율 개선에 관한 연구 (A study on the Improvement of the luminous efficiency with new sustaining electrode structurs in ac-PDPs)

  • 이재영;신중흥;박정후;조정수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 C
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    • pp.1818-1820
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    • 2000
  • Due to recent technology advances, needs for flat panel displays, plasma display panels(PDPs) whose advantages are simple structure, high resolution, wide viewing angle is increasingly expected to be the first flat panel of large screen, walt hanging TVs. But the luminance and luminous efficiency of color PDP is net up to the level of a CRT. So, New electrode shape which is different from the conventional electrode has to propose to improve the luminance and luminous efficiency. In this paper, we suggested new shaped electrodes. In new shaped electrode, the discharge current was reduced compared with conventional type by reducing the unnecessary diffusion loss near the barrier rib. However, the luminance was nearly the same as conventional type. So, the luminous efficiency improved about 35%.

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ISDG를 이용한 다결정실리콘 기계적 물성값 측정법 (Techniques for Measuring Mechanical Properties of Polysilicon using an ISDG)

  • 오충석
    • 한국정밀공학회지
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    • 제21권7호
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    • pp.171-178
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    • 2004
  • Techniques and procedures are presented for measuring mechanical properties on thin-film Polysilicon. Narrow platinum lines are deposited 250 ${\mu}{\textrm}{m}$ apart on tensile specimens that are 3.5 ${\mu}{\textrm}{m}$ thick and 600 ${\mu}{\textrm}{m}$ wide. Load is applied by a piezo-actuator and by hanging weights. Strain is measured by an ISDC at temperatures up to 500 $^{\circ}C$. Measurements of the elastic modulus with jig modifications, loading speed and temperature change are presented first. And then, the preliminary data for the coefficient of thermal expansion and creep behavior are presented as a reference.

유비쿼터스를 이용한 지하수 오염과 고갈방지를 위한 펌핑시스템의 원격제어 (Remote Control of Pumping System for Underground Water Pollution and Running Dry Prevention Using Ubiquitous)

  • 탁한호
    • 한국산업정보학회논문지
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    • 제18권3호
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    • pp.9-15
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    • 2013
  • 본 논문은 온실하우스 시설내의 지하수 오염방지를 위한 유비쿼터스를 이용한 펌핑 시스템의 원격제어기 개발에 있다. 본 연구에서는 수막재배에서 펌프 살수에 대한 온도와 습도를 자동으로 제어한다. 이는 지하수의 무분별한 개발을 방지하고, 또한, 물 부족인 폐공의 경우 보완조치를 못하여 환경오염의 피해가 발생하는 것을 방지할 수 있다. 연구 결과, 최적의 농작물 관리와 펌프 제어를 통해 무분별한 지하수 사용과 고갈을 막고 전기료 절감 등의 장점을 확인하였다.

모듈형 식물장식을 활용한 실내공간 장식방법에 대한 연구 (A Study on the Methods of the Decorations Using Module Plants in Interior Spaces)

  • 이종란
    • 한국실내디자인학회논문집
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    • 제24권5호
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    • pp.62-69
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    • 2015
  • The purpose of this research is to analyze the methods of the decorations using module plants in interior spaces. This research produced 18 types of the module plant decoration: considering the classifications of module plants(soil, hydroculture, moss), directions of module plants (up, side, down), assembling ways of module plants (horizontal, vertical). Applying these 18 types to the interior space decoration (floor stand, wall attach, ceiling hanging), 54 types were classified. After that, 150 cases of the decoration using module plants in interior spaces were collected and analyzed. In result, the cases were belong to 25 types of 54 types. The important types were the types to be able to decorate wide area of walls or ceilings without occupying floor area: SOIL-UP-VERTICAL, HYDROCULTURE-UP-VERTICAL, MOSS-SIDE-VERTICAL. These types were the decorations with function of bio-filter for air cleaning. Special types were SOIL-SIDE-HORIZONTAL, SOIL-SIDE-VERTICAL with soil developed not to pour and SOIL-DOWN-HORIZONTAL, SOIL-DOWN-VERTICAL with lucks not to pour soil. Plants will be used widely in interior design because of the awareness of eco-friendly design. The strength that module plants are portable, changable, able to exchange parts helps users to maintain plants in interior spaces. For designers, module plants are flexible materials in order to make variety of forms to adjust to interior spaces. The results of this research about methods of the decorations using module plants in interior spaces are useful to designers who want to design interior spaces eco-friendly and user-friendly.

당대와 송대의 여자장식에 관한 고찰 (A Study on woman's hair fashions of Tang and Song Dynasty)

  • 이순자
    • 복식
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    • 제35권
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    • pp.67-89
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    • 1997
  • During thousands of years the people of china have not only created the brilliant cul-ture with a world reputation but also brought about an abundant treasury of paramountly beautiful hairdo fashions beyond comparison. Hair styles are an important symbol of the ma-terial and cultural civilization of a certain his-torical period. In Dang Dynasty the country was unified the economy was properous and the political situation was relatively stable. These spelt the solid foundation on which the rich and colourful varieties in the hair styles of women emerged. The numerous hair fashions in Tang Dynasty woman folk could be summed up into three catagories-high bun hanging bun and flat bun. Of course like the garments hair fashions are also the marks for the social status of the women in the feudal society. The hairstyle of the women of the Song Dynasty still followed the fashion of the later period of the Tang Dynasty the high bun be-ing the favoured style. To dress this type of high bun switches were generally used sometimes fashioned in to switch buns of various shapes coiled directly on top of the head. Women from rich families however usually had hairpins and combs made into the shape of flowers birds phoenixes of butterflies to be pinned on top of the buns.

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