• 제목/요약/키워드: Rapid stabilization

검색결과 103건 처리시간 0.024초

부패성유기폐기물의 석회 안정화에 관한 연구 (The Study On Lime-Stabilization of Decayed Oganic Wastes)

  • 김홍래
    • 한국안전학회지
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    • 제4권1호
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    • pp.75-81
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    • 1989
  • The aim of this study is, by the Lime-Stabilization of decayed Organic Wastes, in preventing the reclaimed Waste from being another pollution due to reclaiming those things. 1. A perfect reaction is possible by the addition of poor Stabilization-Lime of 5 percent in a short time of 5 minute. 2. PH of the Stabilization-handled Wastes rise over 12. 3. Malodorant of Stabilized Wastes is slight because malodorant Volatilize in the course of the Stabilization or is captured in the handled subetance. 4. The second pollution scarcely brings about because a rapid decomposition is impossible on account of the coating of Alkali Substance.

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마커인식과 혼합 비주얼 서보잉 기법을 통한 이동로봇의 자세 안정화 제어 (Posture Stabilization Control for Mobile Robot using Marker Recognition and Hybrid Visual Servoing)

  • 이성구;권지욱;홍석교;좌동경
    • 전기학회논문지
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    • 제60권8호
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    • pp.1577-1585
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    • 2011
  • This paper proposes a posture stabilization control algorithm for a wheeled mobile robot using hybrid visual servo control method with a position based and an image based visual servoing (PBVS and IBVS). To overcome chattering phenomena which were shown in the previous researches using a simple switching function based on a threshold, the proposed hybrid visual servo control law introduces the fusion function based on a blending function. Then, the chattering problem and rapid motion of the mobile robot can be eliminated. Also, we consider the nonlinearity of the wheeled mobile robot unlike the previous visual servo control laws using linear control methods to improve the performances of the visual servo control law. The proposed posture stabilization control law using hybrid visual servoing is verified by a theoretical analysis and simulation and experimental results.

특수시멘트 고형화재를 이용한 지정폐기물의 고형화/안정화(III) (Solidification/stabilization of Hazardous Wastes Using Cementitious Materials(III))

  • 임채용;구기대;엄태선;이종열;최롱;오병환
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2001년도 봄 학술발표회 논문집
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    • pp.289-294
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    • 2001
  • This study concerns the cement-solidification/stabilization of the waste with high concentration heavy metals. Compressive strength and leaching test of heavy metals were evaluated for ing types of cements and the effect of the additives of Hauyne clinker and slag were also cussed. Using ordinary portland cement, rapid hardening portland cement and the cement with additives solidification materials, it shows that the strength and stability of concrete is satisfactory and superiority is in the order of rapid hardening portland cement > the cement with additives > nary portland cements.

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슬링(Sling) 시스템을 이용한 경부 안정화 운동 (Cervical stabilization exercise using the Sling system)

  • 권재확;조미주;박민철;김선엽
    • 대한정형도수물리치료학회지
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    • 제8권2호
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    • pp.57-71
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    • 2002
  • Cervical pain is a rapid increase that is owing to a flexion-extension whiplash injury, unappropriated posture, chronical repetition injury from abdominal position of head and neck, excessive repeating work, chronical deficiency of excercise. Because of that is bring about muscle unbalance, tightness of cervical extensor muscle, weakness of cervical deep flexor muscles, instability of cervical region and reduction of proprioceptive sensor. Recent the role of muscle is more emphasized for preservation of sine stabilization. And cognition of integrated muscular system, importance for the operation and relation is increased to maintain stability of the motor system and pertinent function. Therefore we are going to introduce the sling exercise and stabilization exercise method for advanced efficient of cervical and upper limb and for the muscle strengthening to importance cervical stabilization through neurological program as control the reaction of cervical stabilization. Sling exercise therapy(SET) concept consists of a system of diagnosis and treatment. The system of diagnosis involves testing the muscle's tolerance through progressive loading in open and close kinetic chains. The SET system contains elements such as relaxation, increasing the range of movement, traction, training the stabilizing musculature, sensory-motor exercises, training in open and close kinetic chains, dynamic training of the mobilizing musculature, cardiovascular exercise, group exercise, personal exercise at home Sensory-motor training is an essential element of the SET concept. The emphasis is on closed kinetic chain exercise on an unstable surface, there by achieving optimum stimulation of the sensory-motor apparatus.

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생산공정에서 TRM의 성공적 정착을 위한 Input 안정화의 역할에 관한 연구 : 디스플레이 산업 중심으로 (A Study on the Role of Input Stabilization for Successful Settle down of TRM in Production Process : A Case of Display Industry)

  • 조명호;조진형
    • 산업경영시스템학회지
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    • 제39권1호
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    • pp.140-152
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    • 2016
  • It is very important for the competitiveness and sustainable management of enterprises that the rapid changes in the managerial environments quickly and accurately are responded. For example, the large-scale investment accompanied by bad alternatives in accordance with misunderstanding of the managerial environments yields the huge cost and effort to modify and improve. In firm management, the quality of products and the productivity are influenced by changes of the endogenous factors yielded in manufacturing process and the exogenous factors as market, etc. These changes include not only changes in 4M (man, machine, material, method) but also those in the market, competitors, and technologies in the process of commodification, i.e., first, such disturbances make dispersion of the process big and odd. By Shewhart chart it can be checked that the process monitored is control-in or out. Business administration executes activities for input stabilization by monitoring changes in 4Ms, comparing with the standards, and taking measures for any abnormality. Second, TRM (technology road map) is to prospect product deployment and technological trend by predicting technologies in the competitive environment as the market, and to suggest the future directions of business. So, TRM must be modified and improved according to DR (design review) stages and changes in mass-production like input material change. Therefore, a role of TRM in input stabilization for reducing cost and man-hour is important. This study purposed to suggest that the environment changes are classified into endogenous factors and exogenous factors in production process, and then, quality and productivity should be stabilized efficiently through connection between TRM and input stabilization, and to prove that it is more effective for the display industry to connect TRM with input stabilization rather than to use TRM separately.

영역별 수직 투영 히스토그램 매칭 및 선형 회귀모델 기반의 차량 운행 영상의 안정화 기술 개발 (Regional Projection Histogram Matching and Linear Regression based Video Stabilization for a Moving Vehicle)

  • 허유정;최민국;이현규;이상철
    • 방송공학회논문지
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    • 제19권6호
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    • pp.798-809
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    • 2014
  • 본 논문에서는 블랙박스 혹은 운전석에 장착된 카메라로부터 얻어진 차량 영상에 대한 영역별 수직 투영 히스토그램 매칭 및 선형 회귀분석 모델을 활용한 강건한 차량 운행 동영상의 안정화 기법을 제안한다. 동영상 안정화 기법은 영상의 흔들림 보정 뿐 아니라 동영상 내 강건한 특징점 추적 및 매칭을 위한 이전의 전처리 과정으로 활용된다. 일반적으로 촬영 과정에서 많은 떨림이 포함될 수 있는 야외 CCTV 영상이나 손으로 들고 촬영된 동영상에 대한 흔들림 보정 등에 적용되고 있으나 영상 내 특징점이 지속적으로 변하고 영상의 변화 정도가 매우 심한 차량 운행 동영상에서는 적용된 사례가 드물다. 본 연구에서는 일반적인 비디오 안정화 기술이 적용되기 어려운 차량 운행 동영상에 대하여 흔들림 보정을 위한 동영상 안정화 기법을 제안한다. 제안된 기법은 입력 영상에 대한 영역별 수직 투영 히스토그램 매칭을 수행하고 선형 회귀모델을 통해 영상에 나타나는 수직 및 회전 이동 변환을 선형 근사하여 시간 영역상에서의 입력 영상에 대한 안정화를 수행한다. 제안 방법의 검증을 위해 블랙박스로 촬영된 동영상에 동영상 안정화 기술을 적용하였으며, 운행 중 불규칙한 노면으로 인한 영상의 흔들림이 효과적으로 제거되는 것을 확인할 수 있었다.

공기주입방식에 의한 매립지가스 안정화에 관한 현장연구 (Field Study on Stabilization of Landfill Gas by Air Injection Mode)

  • 김경;박준석
    • 한국지반환경공학회 논문집
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    • 제7권4호
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    • pp.63-71
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    • 2006
  • 본 연구에서는 공기주입 방식과 공기주입 시간이 매립지가스 안정화에 미치는 영향을 평가하고 매립지굴착사업 진행시 굴착작업 시간을 판단하고자 실시하였다. 간헐주입의 경우 혐기성에서 호기성으로의 전환되는데 연속주입보다 8배 정도 긴 시간이 소요되어 매립지굴착사업과 같이 혐기성 가스를 빠른 시간 내에 호기성 가스로 치환하여 굴착작업을 수행해야 하는 경우에는 연속주입이 더 적합할 것으로 판단되었다. $0.2m^3/min$ 유량으로 공기를 연속주입한 후 중단하였을 때 공기주입 시간과 호기성 조건($CH_4$ < 5%)이 유지되는 시간과는 비교적 높은 상관도($r^2$ = 0.95)를 나타내고 있었다. 공기주입 시간을 1이라고 볼 때 공기주입 중단 후 호기성은 약 1.5배 정도의 긴 기간 동안 유지되고 있었다.

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리니어 수소동력시스템의 연소연구용 급속흡입압축기의 특성 해석 (Analysis on the Characteristics of RICEM for Researching Combustion Characteristics of Linear Hydrogen Power System)

  • 이제홍;김강문;정대용;이종태
    • 한국수소및신에너지학회논문집
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    • 제16권1호
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    • pp.66-73
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    • 2005
  • Hydrogen linear power system is estimated as the next generation power system which can obtain a performance as same as fuel cell. In order to develop Hydrogen combustion power system with high thermal efficiency, it is very important to understand the basic characteristics of hydrogen combustion and establish combustion stabilization technique of its system. In this study, RICEM(Rapid Intake Compression Expansion Machine) for researching of hydrogen combustion linear power system was manufactured and evaluated, and the basic characteristics of linear RICEM were analyzed.

등가감속 프로파일을 이용한 EOTS 위치제어 (EOTS Position Control Using Constant Acceleration and Deceleration Profile)

  • 임정빈;유준
    • 한국군사과학기술학회지
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    • 제16권1호
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    • pp.89-94
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    • 2013
  • Electro Otical Tracking System(EOTS) is required for a rapid movement as well as the stabilization of Line-Of-Sight(LOS). In order to achieve these two goals, this paper presents a position and velocity driving profile generation method from the constant acceleration and deceleration profile according to the current state, enabling a fast and smooth trajectory even if the target position changes during the movement of LOS. Simulation and experimental results reveal that the settling time could be reduced significantly by adopting the present position control scheme.