• Title/Summary/Keyword: Experiments

Search Result 41,846, Processing Time 0.07 seconds

Block Confounding Effect for Mixture Experiments with Process Variables (혼합물실험(混合物實驗)의 공정변수(工程變數)에 관한 교락(交絡) block 효과(效果))

  • Jeong, Jung-Hui;Kim, Jeong-Man
    • Journal of Korean Society for Quality Management
    • /
    • v.13 no.2
    • /
    • pp.66-72
    • /
    • 1985
  • The objective of mixture experiments with process variables is to find experimental blends and conditions that produce the product of highest quality. In this paper, designs for mixture experiments with process variables are presented, where the emphasis is on using only a fraction of the total number of possible design points and the fitting of reduced models for measuring the effects of the mixture components and process variables.

  • PDF

STATUS OF FACILITIES AND EXPERIENCE FOR IRRADIATION OF LWR AND V/HTR FUEL IN THE HFR PETTEN

  • Bakker Klaas;Klaassen Frodo;Schram Ronald;Futterer Michael
    • Nuclear Engineering and Technology
    • /
    • v.38 no.5
    • /
    • pp.417-422
    • /
    • 2006
  • The present paper describes the 45 MW High Flux Reactor (HFR) which is located in Petten, The Netherlands. This paper focuses on selected technical aspects of this reactor and on nuclear fuel irradiation experiments. These fuel experiments are mainly experiments on Light Water Reactor (LWR) and Very/High Temperature Reactor (V/HTR) fuels, but also on Fast Reactor (FR) fuels, transmutation fuels and Material Test Reactor (MTR) fuels.

Finite Element Analysis of Cracted Structural Steel Member (균열을 가진 강구조부재의 한계하중에 대한 유한요소해석)

  • 박용걸
    • Computational Structural Engineering
    • /
    • v.8 no.1
    • /
    • pp.123-126
    • /
    • 1995
  • The purpose of the analysis is the numerical simulation of structures strained to the limit loads. The finite element calculations and experiments with cracked structures have been carried out yielding over limit strains between 10% and 15% by single peak load. Load versus displacement-diagrams and J-diagrams up to the limit load are calculated. By this way the influence of geometric parameters may be assessed in the post yield region. It is proposed to use such calculations to correlate experiments carried out with small specimens to experiments simulating the true dimensions of the design structure.

  • PDF

A Study On The Design Of Control Algorithm For Vibration Isolator And its Experiments (제진장치의 제어기 설계와 실험에 관한 연구)

  • Le, Dang Khanh;Nam, Taek-Kun;Roh, Young-Oh
    • Proceedings of the Korean Society of Marine Engineers Conference
    • /
    • 2011.06a
    • /
    • pp.219-220
    • /
    • 2011
  • In this paper the construction of vibration isolator using induction motor and its experiments are introduced. The vibration isolator is composed by plate, crank, electric motor and laser sensor to measure the displacement of plate. A control scheme to isolate the vibration signals due to the load variance and disturbance is designed with pole-placement and Routh-Huritz method. Experiments are also applied to confirm the effectiveness of the proposed control scheme.

  • PDF

Burnthrough point control for a sintering process (소결공정에서의 완전소결점 위치제어)

  • 권욱현;고명삼;백기남
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1986.10a
    • /
    • pp.216-224
    • /
    • 1986
  • This paper treats the modelling and the control of the burnthrough point control system for an industrial sintering process. First, a state-space model is derived by defining new unconventional variables. A simple control law is proposed, which consists of the modified receding horizon control law and the least-squares prediction algorithm. The stability and the tracking properties of this control law are proved. The real-time experiments are carried out in a POSCO sintering plant and satisfactory results are presented in this paper. Before the real-time experiments, computer simulations are done and their results are also given for the comparison with the real-time experiments.

  • PDF

Field Experiments on Performance Evaluation of Pressure Differential System for Smoke Management (급기가압 제연시스템의 현장 성능평가 연구)

  • Kim, Jung-Yup;Rie, Dong-Ho;Kim, Ha-Young
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
    • /
    • 2008.04a
    • /
    • pp.251-254
    • /
    • 2008
  • The fact that the major cases of life casualties are from smoke in the fire accidents and the expected steep increase of skyscrapers, huge spaces, multiplexes and huge scaled underground spaces demand establishment of efficient smoke countermeasure. The field experiments on two high buildings of 20 stories and 21 stories are carried out to evaluate the field performance of pressure differential systems for smoke management and the results of experiments are presented.

  • PDF

Optimization of V-groove Arc Welding Process Using Genetic Algorithm (유전 알고리즘을 이용한 V그루브 아크 용접 공정변수 최적화)

  • 안홍락;이세헌;안승호;강문진
    • Proceedings of the KWS Conference
    • /
    • 2003.05a
    • /
    • pp.172-175
    • /
    • 2003
  • A genetic algorithm was applied to an arc welding process to determine near optimal settings of welding process parameters which produce good weld quality. It has an advantage of being able to find optimal conditions with a fewer number of experiments than conventional full factorial design. According to the conventional full factorial design, in order to find the optimal welding conditions, 16,384 experiments must be performed. The genetic algorithm however, found the near optimal welding conditions from less than 60 experiments.

  • PDF

The Basic Experiments for Analysis of Solar Radiation Environemnts in Greenhouse (온실의 광환경 분석을 위한 기초실험)

  • 이현우;이석건;김길동;이종원
    • Proceedings of the Korean Society of Agricultural Engineers Conference
    • /
    • 1999.10c
    • /
    • pp.434-438
    • /
    • 1999
  • It was neede to know the amount of PAR to predict the growth of crops, and the quantity of total radiation to control the temperature by shading screen in the greenhouse. Experiments have been conducted to determine the correlation between the hourly PAR and total solar radiation the transmisson of PAR and total solar radiaiton oat canopy location, and the relationship between the illuminaance and total solar radiation. Additional experiments are needed to confirm thses experimental results.

  • PDF

컴퓨터 모니터 디자인 개발에서 인간공학 응용

  • 신명철
    • Proceedings of the ESK Conference
    • /
    • 1997.10a
    • /
    • pp.320-325
    • /
    • 1997
  • It is very diffcult to applied ergonomics data & experiments in industrial design. At the industrial design process attempted toadoption a egonomics. But sometimes easyto use ergonomics data and at other times very hard to adopted a element into a design process. Industrial design of the essence is a sensual act. As ergonomics data is to the hardware, sois the design sense to the software. The harmony are important to hardware & software of design process. New products demand to new form. Therefore, designer neglect to ergonomics experiments for user. Anyway, ergonomics experiments & data endlessly applied to more things year after year. This paper show improved computer front design with graphic, knobs size & control panel tilt angle.

  • PDF

Experiments on Non-Surgical Embryo Recovery and Transfer in Diry Cow. (젖소의 비수술적 수정란회수 및 이식시험)

  • Gu Ja-Hong;Cheong Chang-Kook
    • Journal of the korean veterinary medical association
    • /
    • v.18 no.10
    • /
    • pp.45-52
    • /
    • 1982
  • Four experiments were conducted to improve non-surgical embryo recovery and transfer techniques in achieving acceptable success rate. In this experiments, 6 Holstein cows were submitted as embryo donors and of these, 5 donors were superovulated with pregn

  • PDF