• 전기의세계
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• v.19 no.2
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• pp.6-11
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• 1970

For the variable speed in automatic control, this paper describes, at first, performance equations of an induction motor which has the free rotating stator. This motor with rotating stator has a speed control factor itself by equivalent variable frequency in stator side. Secondly, an additional invertor source on the rotor slip ring serves the purpose of improving the speed control factor. The advantages decribed above permit to control the speed continuosly from zero to maximum allowable speed with low energy of thyristor a feed-back device may be used for speed stabilization under variable load.

• 제어로봇시스템학회:학술대회논문집
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• 1989.10a
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• pp.282-285
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• 1989

This paper presents a new algorithm for position control of the BALL-HOOP system driven by th D.C. servo motor-through the micro computer simulation. The Stale Feed back + PID control algorithm is proposed. This algorithm performs that the settling time is faster and overshoot is decreased more remarkably than the PID and the State Feedback algorithm alone. In this simulation the difference equations are used to calculate the output of the control system.

• Journal of applied mathematics & informatics
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• v.5 no.3
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• pp.827-837
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• 1998

We consider the M/G/1 queue with instantaneous feed-back. The probabilities of feedback are determined by the state of the underlaying Markov chain. by using the supplementary variable method we derive the generating function of the number of customers in the system. In the analysis it is required to calculate the matrix equations. To solve the matrix equations we use the notion of Ex-tended Laplace Transform.

• Education of Primary School Mathematics
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• v.1 no.2
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• pp.125-136
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• 1997

교육의 장에서 많은 교사들은 다양한 방법으로 교육 현실의 상태를 올바로 파악하여 현장에 응용하고, 새로운 교육 기법을 개발하여 교육의 질을 개선시키고자 하는 노력을 하고 있다. 이러한 과정에서 교사들은 연구 목적을 정하고, 그에 합당한 측도(measure)를 개발하고, 실험을 설계하고, 가설에 맞는 통계적 방법을 적용하여 결론을 도출하여 재투입(feed-back)하고 있는 것이 현실이다. 이러한 연구 결과에 기초해서 새로운 교육 개선 안이 나오고, 이를 토대로 올바르고 바람직한 방향의 교육이 실현되게 된다.(중략)

• 제어로봇시스템학회:학술대회논문집
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• 1990.10a
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• pp.831-836
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• 1990

Real-time implementations of active noise controller are proposed and tested. For compensation of time delay of feed-back path, the n-step ahead prediction is applied. And predicting source noise and reflection noise respectively, reflection noise can be cancelled. For real-time processing, the DSP56001(Digital Signal Processor) is used. Experimental results show that the proposed controller is stable and of good performance.

• Proceedings of the Korean Geotechical Society Conference
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• 2000.03c
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• pp.70-77
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• 2000

Field instrumentation has been important part of construction management in embankment on soft ground. Most of all, well organized plan, instrumentation, maintenance, analysis and feed-back to the construction procedure are the key to the successful construction. In this paper, We review problems of field instrumentation has been performed at road construction on soft ground. And then, several proposals to improve field instrumentation and management are suggested

• Proceedings of the Korean Society for Applied Microbiology Conference
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• 1979.10a
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• pp.245.1-245
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• 1979

PDP 전자 계산기를 발효소에 연결하여 자동 제어하의 효모 유가 배양을 수행하였다. 필요한 부대 장치들을 만들어 성공적으로 사용하고 feed-back자동 제어를 수행할 수 있게 발효도중 임의의 시간에 발효 조건을 모니터하도록 하였다. 연속 세포 농도 측정을 위한 플로우ㆍ셀을 자체 제작하여 사용함과 동시에 기포 제거를 따로 할 필요가 없도록 하였다. 측정 시그날을 위한 증푹기도 자체 제작하였던 바 우수한 성능을 보여 주었다. 이 경험으로 다른 모든 측정 장치의 개발과 전자 계산기에의 연결에 값진 경험을 주었다.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.597-614
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• 2001

Level 0: The Marekting Buzzword : □Confusion between DMU and Visualization □Having a Mobile Data Viewer/Analyser is Anyway a Prerequisite Level 1: Digital Pre-Assembly (DPA): □Building Digital Prototype before Physical Build □Usually a job for Packaging or Prototype Teams □Usually no time Left to take Feed-back into account before Actual Build Level 2: Design in Context: □All Designers within Car Maker do Local DMU before DPA Level 3: Design in Extended Context □Design in Context Expanded to Suppliers(omitted)

• Proceedings of the Membrane Society of Korea Conference
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• 1994.04a
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• pp.29-32
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• 1994

The increasing environmental risks exert strong demands for the knowledge of environmentally significant compounds and the reduction of such compounds on the earth. The risk reduction can, in principle, be most effectively achieved by minimizing the formation of environmental pollutants, by-products in many cases, during processes in factories, power plants and other sources. This can be done by on-line, real time monitoring the formation of pollutants at the moment when they are formed, and thereby through the feed-back control of the process.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.462-462
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• 2000

In this paper, genetic algorithm (GA) is the technique to search for the optimal structures (i,e., the kind of neural network, the number of hidden neuron, ..) of the neural networks which are used approximating a given nonlinear function, In this paper, we used multi layer feed-forward neural network. The decision method of synapse weights of each neuron in each generation used back-propagation method. In this study, we simulated nonlinear function approximation in the temperature control system.