• Title/Summary/Keyword: Sun:general

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A Comparative Study of Two-phase Heuristic Approaches to General Job Shop Scheduling Problem

  • Sun, Ji Ung
    • Industrial Engineering and Management Systems
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    • v.7 no.2
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    • pp.84-92
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    • 2008
  • Scheduling is one of the most important issues in the planning and operation of production systems. This paper investigates a general job shop scheduling problem with reentrant work flows and sequence dependent setup times. The disjunctive graph representation is used to capture the interactions between machines in job shop. Based on this representation, four two-phase heuristic procedures are proposed to obtain near optimal solutions for this problem. The obtained solutions in the first phase are substantially improved by reversing the direction of some critical disjunctive arcs of the graph in the second phase. A comparative study is conducted to examine the performance of these proposed algorithms.

A Clinical Report on Treatment of Two Soyangin Cases of Complications of Post-hysterectomy

  • Bae, Geung-Mee;Cho, Hye-Sook;Lee, Seung-Hwan;Lee, In-Sun
    • The Journal of Korean Medicine
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    • v.30 no.3
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    • pp.111-118
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    • 2009
  • Hysterectomy can lead to various symptoms threatening decent quality of life. As the frequency of hysterectomy increases, there are many patients who want to take oriental medicine treatments for complications. Several clinical studies have reported the effectiveness of oriental medicine treatment for post-hysterectomy complications. Out of these symptoms, postoperative nausea and vomiting (PONV, hereafter) are indicated at about 20-40% of frequency within patients with general anesthesia, and they may occur not only during recovery from operation, but also after discharge. Although the incidence of PONV has decreased now thanks to the usage of antiemetics, PONV still causes some difficulties for patients returning to daily life. This study reports two cases of post-hysterectomy complications such as nausea, dizziness, vomiting, general weakness, and coldness of the limbs, which had good responses to herbal medication and acupuncture.

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A Fundamental Study on the General Composition of Raw Milk of Holstein in Korea for Veterinary Public Health (수의공중보건학적면에서 국내산원유의 조성에 관한 연구)

  • Yi Chae-Sun;Lee Won-Chang;Lee Sang-Mog;Yoon Chong-Sam;Sakai Takeo
    • Journal of the korean veterinary medical association
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    • v.27 no.4
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    • pp.235-241
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    • 1991
  • In this fundamental study of autors observed on the general composition of raw milk of Holstein in Korea for Veterinary Public Health Science. It is hope that the information will be used for reference in the future endearvors of study in the field of vet

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An Algorithm for Optimal Inventory Level in Multi - Echelon Repairable - Item Inventory System with General Service Time distribution (일반 서비스 시간 분포를 갖는 다단계 수리가능 재고 시스템에 대한 최적재고수준 알고리듬)

  • Kim, Tai-Young;Kim, Jong-Soo;Hur, Sun
    • Journal of Korean Institute of Industrial Engineers
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    • v.27 no.3
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    • pp.226-232
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    • 2001
  • This paper presents an efficient method for the problem of determining the spare inventory level of a multi-echelon repairable-item inventory system. We consider the system with two levels of inventory, two levels of service and with a general service time distribution. We propose an algorithm that determines the spare inventory level to satisfy the minimum fill rate with the minimum cost. Experimental results show that the algorithm is accurate and efficient.

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A Study on improvements in manufatured technique of all Ceramic Crown (전부도재관 기법 개선에 관한 연구)

  • Shin, Moo-Hak;Kim, Yeon-Soo;Choi, Un-Jea;Chung, Hee-Sun
    • Journal of Technologic Dentistry
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    • v.23 no.2
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    • pp.9-15
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    • 2002
  • A new kind of 'All Ceramic Crown' could be manufactured by making improvements in the manufacturing technique for the current 'All Ceramic Crown' which does not use a special ceramic but rather a general one as a substitute. If we use the manufacturing technique for the 'All Ceramic Crown', metal coping and core are not produced. The effects of the new manufacturing technique for the 'All Ceramic Crown' are as follows: First. We do not need to use new material or special machinery or tools. Second. We can use general machinery and tools. Third. Using the basic 'All Ceramic Technique', we anticipate improvement in learning in our students. Forth. We can save effort, materials and time. Fifth. The technique also has advantages for esthetic 'temporary crown'.

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Role of Emergency Medical Technician(EMT) in Hospital (병원내 응급구조사의 역할 - 분당제생병원 응급구조사의 근무경험을 중심으로 -)

  • Kim, Sun Man;Jung, Mi Sung
    • The Korean Journal of Emergency Medical Services
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    • v.4 no.1
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    • pp.31-34
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    • 2000
  • The real Emergency Medical Service (EMS) was introduced into Korea in the 1990s, but the role of the EMT in hospital has not been establish. This report is based on our experience for the purpose of introducing the role of the EMT in hospital. 1) EMT assisted a doctor in emergency department. 2) EMT served as a member of CPCR team in hospital during last 3 years. The survival rate of CPCR in hospital was higher than other result in Korea. 3) EMT performed his duties as a keeper of hemodynamically unstable or severely injured patients very well. 4) EMT transferred patients with safety. 5) EMT ran with rapid triage. We think that EMT will play an important role in hospital from now on.

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NUMERICAL ANALYSIS OF PHASE CHANGE AND SPRAY, MHD FLOW USING A NUFLEX (NUFLEX의 상변화, 분무유동 및 MHD 해석)

  • Ro, Kyoung-Chul;Ryou, Hong-Sun;Kang, Kwan-Gu;Hur, Nahm-Keon
    • Journal of computational fluids engineering
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    • v.12 no.2
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    • pp.32-36
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    • 2007
  • NUFLEX is a general purpose program for the analysis 3D thermo/fluid flow and pre/post processor in a complex geometry. NUFLEX is composed of various physical models, such as phase change(solidification/melting) and spray, MHD(Magneto Hydraulic Dynamics) models. It is possible to simulate continuous cast iron process and spray droplet breakup/collision phenomenon. For the verification of these models, compared with the experimental data and commercial CFD code's results. The results show good agreements with experimental and comercial CFD codes's results.

A Study on the Recognition and Preference of Korean Traditional Rice Cake According to Age in Capital area (수도권 지역의 연령에 따른 전통 떡류에 대한 인지도 및 기호도)

  • Kim, Ok-sun;Shin, Min-ja
    • Korean journal of food and cookery science
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    • v.20 no.5
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    • pp.444-452
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    • 2004
  • The purpose of this study was to investigate the perception and preference of the general public about Korean traditional rice cakes. Self-administered questionnaires were collected from 511 residents in Seoul and its vicinities. Data was analysed by t-test and one-way ANOVA. The recognition of Korean traditional rice cake was generally low except for the items that could be easily seen as either seasonable or festive foods. There was a significant difference in the average score of recognition and preference for each kind of Korean traditional rice cake according to gender and age. Injulmi, Yaksik, Songpyun, Baiksulgi and Garaeduk are highly preferred Korean traditional rice cakes, whereas Suktanbyung, Dootupduk, Soemuriduk and Daechoodanja are poorly considered among the general public.

Anesthesia for Cesarean Section in a Parturient with Dilated Cardiomyopathy -A Case Report- (확장성 심근병증 산모의 제왕절개술을 위한 마취 경험)

  • Kim, Sae-Yeon;Heo, Su-Jeong;Song, Sun-Ok
    • Journal of Yeungnam Medical Science
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    • v.27 no.1
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    • pp.52-56
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    • 2010
  • Idiopathic peripartum cardiomyopathy is an uncommon malady disease. Making the diagnosis is often difficult and it is always necessary to exclude other prior heart disease and other causes of left ventricular dysfunction in pregnant women. Heart failure in these women ensues when the cardiovascular demands of normal pregnancy are further amplified when the common complications of pregnancy complications superimposed upon these underlying conditions that cause compensated ventricular hypertrophy. This may be aggravated by making a late diagnosis and providing inappropriate treatment. We experienced a 38-year-primigravida who has diagnosed with idiopathic peripartum cardiomyopathy and underwent elective cesarean section with general anesthesia.

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거가잡복고(居家雜服攷)를 통해 본 조선시대의 복식풍속

  • Jo, Hyo-Sun
    • Journal of the Korean Society of Costume
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    • v.15
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    • pp.47-54
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    • 1990
  • Kyu-Soo Park wrote the book "Gur Ga Jap Bok Ko" (Proposition for Household Casuals) around A.D. 1865. He was a widely-learned man and a proponent of Korean self-consciou-seness like his fellow Pragmafist against then prevailing Chinese influence, which had already penetrated deeply into ordinary life style. According to this fact we can see not only the general dress-cystoms but the new customs of some high-birth People with evident self-consciouseness like him at that time. For example, they wore "Sim Eui" and "Bok Gun" as the dress of their ordinary life in spite of the general dress custom wearing the "Do Po" (Traditional Korean full-dress attire) and "Gat" (Traditional cylindrical Korean hat) as an ordinary or a ceremonial dress irrespective of rank at that time. Women wore an overcoat with "Chima" and "Jur. Go Ri" instead of the shortened "Jur, Go Ri" and buttock exagerating "Chima" largely popular at that time too. And also wore "So Eui" instead of "won Sam" or "Dang Eui" prevailing for the psychological resemblance of higher ranking group. Male yougnsters wore "Sa Gyu Sam" as an ordinary life dress and Girls wore "Chima and Jur Go Ri".

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