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New Aggregation Algorithm for Tandem queue with Finite Buffers
김종환,Hur, Sung Kwan,徐承祿 大邱大學校附設 基礎科學硏究所 1991 基礎科學硏究 Vol.8 No.-
We consider a two-stage fmite tandem queueing system with Poisson arrivals and negative exponential service times. The customer who has completed his service at the first station has to go directlty to the second station. If the queue of the second station is full at the moment of the service completion of the customer at the first station, then the customer receives, another service at the first station. This is repeated until the customer completes a service at the first station at the moment that the second station is not fulL The problem of calculating the steady-state probabilities of this queueing system by the ordinary balance equations is time consuming. We develop an efficient algorithm to obtain the steady-state probabilities that utilize the two-way state aggregation techniques.
김종환,홍재승 한국스포츠산업경영학회 2003 한국스포츠산업경영학회지 Vol.8 No.2
프로축구리그관중의 만족도와 재구매의도의 상관요인분석에 관한 연구김종환 (중앙대학교), 홍재승 (서울대학교)
Explicit M.R.A.C. 알고리즘에 의한 공정제어의 개선
朴俊烈,金種煥 弘益大學校 1984 弘大論叢 Vol.16 No.2
Pade-Type Approximation을 이용하여 새로운 기준모델 적응 제어계를 디자인하였다. 공정의 파라미터를 모르는 상태에서 제어계를 디자인하여 이로부터 제어목적을 만족시키는 Identity방정식을 유도하여 이조건을 만족시키는 파라미터를 반복적으로 추정하였다. 이 결과 추정할 공정의 파라미터 갯수를 줄이는 효과를 얻을 수 있다. 기존의 방법과 새로운 방법을 컴퓨터 시뮬레이션으로 나타내었다. New design of MRAC for achieving independent tracking and regulation objectives by applying Pade-Type Approximation in the controller parameter estimation is presented. The design of the controller is done with the unknown plant parameters from the first. The result of the design is a simple control scheme with the reduction of estimation parameters. The performance of new control structure in tracking and regulation is compared with the other method by computer simulation.
金鍾煥 대구교육대학교 1972 論文集 Vol.8 No.-
This thesis is to constitute the test battery for the musical aptitude measurement and to reach to its standardization. For this purpose, the following studies were made with the third, fourth, fifth and sixth grades in the primary school: (1) to define the concept of musical aptitude, (2) to analize the facts of musical aptitude and set up the contents of the test battery with such four items as sense of pitch, sense of time, harmony analysis and tonal memory, (3) Twelve items of question for each test were prepared and recorded for answering, (4) The standardization of this test battery underwent the following procedures: (a) Two rounds of preparatory test, (b) Stratified random sampling was made throughout the nation and its results were reviewed for main test, (c) The sampling members amount to a total of 4,861 persons, (d) The reliability and validity of the test were of satisfactory level, (e) In the test, norms for both middle grades and higher graders were prepared, which are two kinds of percentile score and T score, (5) Musical aptitude was measured into five ranks and the standard tables of rank were made to know to which rank each individual raw score got in the test belongs.
金鍾桓 대한한의학회 부인과학회 2000 大韓韓方婦人科學會誌 Vol.13 No.2
The number of patients with ovarian cyst is 1/3 of gynaecologic masses and the rates of morbidity in women is 9%. These are commonly an increased frequency of micturition and a dull pain in the lower abdomen. Because of the lack of any specific symptoms, ovarina tumours are often large by the time doctor is consulted. Ovarian cyst is a disease characterized by ovarian cystic mass, mostly benign. Physicians and patients are concerned with the optimum approach to the treatment of ovarian cyst. Until a recent date, many oriental medicine studies were performed to find the curative efficacy on the ovarian cyst, which is differ from therapeutics of Western-medicine. The proper use and role of Herb-med are issues that have generated major research efforts. This study was carried out to investigate evaluation of clinical study on the ovarian cyst. So, these are to be mentioned in this paper.
김종환 전주대학교 기독교연구원 1996 복음과 학문 Vol.- No.3
현대 사회는 상담을 통한 치유-사역이 요청되는 2A-현상이 만연되고 있다. 이를 위한 목회 상담을 위하여 가정 상담과 가족 치료가 요청되고 있다. 이는 성서적인 가정의 기능에서 치료 접근을 모색하여야 한다. 즉 세 가지 일용할 양식이 있는 전인적으로 건강한 가정을 위한 상담 접근이 그 근간인 것이다. 특별히 그리스도인 가정인 전인성을 위하여 애정의 구체적인 치료접근이 중요하다. 그 요점은 다음과 같다. 1)Key person으로서의 가족관계 2)Means Of Affection 3)I-Massenge 와 No-Loser's Model