셀형 유연조립시스템에서의 통합 배치설계

최형호,노인규 한국경영과학회 1997 韓國經營科學會誌 Vol.22 No.4

The major two steps required to design a cellular layout are cell formation and cell layout. Because of the differences between manufacturing and assembly operations, the logic of cell formation and cell layout between at FMS and an FAS is not the same. Since the time for the assembly operations is usually relatively short, the transfer time is thus very crucial for the performance of assembly systems. Therefore in a cellular FAS it is more important to eliminate backtracking operations in assembly planning, not to allow intercellular movements in cell formation, and to arrange machines according to assembly sequence in cell layout. This study presents a method for the integrated layout design in cellular FASs considering the characteristics of FAS, layout, and production factors.

군복무중인 성인 남자의 치주상태에 관한 연구

최형호,정진형,이재현,Choi, H.H.,Jeong, Jin-Hyeong,Lee, Jae-Hyeon 대한치주과학회 1992 Journal of Periodontal & Implant Science Vol.22 No.1

농흉의 임상적 고찰110

최형호 대한흉부심장혈관외과학회 1983 Journal of Chest Surgery (J Chest Surg) Vol.16 No.4

The author made a clinical study of IIO cases of empyema thoracis who were diagnosed and treated at department of chest surgery, chosun university hospital, during the period of December 1979 through June 1983. 1. In age and sex distribution, 45 cases [41%] was under the age of 15 years, 65 cases [59%] was above the age of 15 years. The ratio of male to female was 2.6:1. 2. The predisposing factors were pneumonia 45 cases [41%] and pulmonary tuberculosis 40 cases [36.5%]. 3. The cardinal symptoms were dyspnea, chest pain, fever, cough in order. 4. Etiologic organisms were confirmed in 69% which requested in 87 cases. Staphylococcal infection were 19 cases, Streptococcal infection were 13 cases, pneumococcal infection were 11 cases. 5. In treatment of empyema, thoracentesis 4 cases, closed thoracotomy 50 cases, open drainage 29 cases, decortication 14 cases and thoracoplasty 13 cases. In children, only thoracentesis and closed thoracotomy was favorable result in treatment. 6. 103 cases were discharged with recovery and improvement but 7 cases were early discharged by their economic or personal condition without improved.

주차 중 발생한 캠핑카화재 사례의 분석

최형호,이의평 한국방재학회 2019 한국방재학회논문집 Vol.19 No.1

Because of the increase in the popularity of camping and leisure culture, camping car fires have increased consistently with an increase in the number of camping car registrations. In this study, we analyzed the causes of a fire that broke out at midnight in a parked camping car. The camping car was parked with the engine stopped. The results of fire investigation suggest that the fire broke out because the finish of the battery cable outlet of an iron case installed at the bottom of the car was of bad quality. The bad finish resulted in damage to the battery cable coating. Thus, the battery cable conductor made contact with the iron case, resulting in a short-circuit. 레저 및 캠핑 문화의 활성화로 캠핑카 등록대수가 증가함에 따라 캠핑카화재도 증가하고 있다. 이 논문에서는 시동이 꺼진 상태로 주차 중 심야에 캠핑카에서 발생한 화재의 원인을 분석하고 있다. 화재조사 결과 이 캠핑카 화재는 캠핑하우스 하부에 설치된 배터리 철제 케이스의 배터리 케이블 인입구 마감처리 불량으로 배터리 케이블의 피복이 손상되며 배터리 케이블 도체가 철제 케이스와 접촉되어서 합선이 일어나 발생되었다.

300V용 Mo-MPS 정류기의 제조 및 그 특성

최형호,박근용,김준식,최시영 대한전자공학회 2003 電子工學會論文誌-SD (Semiconductor and devices) Vol.40 No.6

The current paper presents a new Mo-MPS rectifier using molybdenum as barrier metal to improve on the low forward voltage drop and power dissipation of the coventional Al-MPS and Pt-MPS rectifier. Electrical characteristics of the fabricated Mo-MPS rectifier are imvestigated compared with Al-MPS and Pt-MPS rectifier. At the same current level, the forward voltage drop of the Mo-MPS was reduced by 0.11V~0.24V compared to that of the conventional MPS rectifier. Accordingly, since the Power dissipation of a rectifier mostly depends on the forward current density and forward voltage drop, the Mo-MPS rectifier achieved improved power dissipation when compared to the conventional MPS rectifier. The reverse breakdown voltage of a Mo-MPS rectifier with 68% Schottky junction area was about 304y. Despite having a lower forward voltage drop than a conventional MPS rectifier, the Mo-MPS rectifier still exhibited a higher reverse breakdown voltage. 일반적인 MPS 정류기의 순방향 전압강하 및 전력손실을 향상시키기 위해 몰리브덴을 장벽금속으로 사용하여 새로운 Mo-MPS 정류기를 제조하였다. 제조 된 Mo-MPS 정류기의 전기적 특성을 Al-MPS 및 Pt-MPS 정류기와 비교함으로써 특성을 평가하였다. 실험 결과 동일한 0.1A의 전류에서 Mo-MPs 정류기의 순방향 전압강하가 Al-MPS 및 Pt-MPS 정류기와 비교하여 각각 0.11V, 0.24V 낮게 나타났다. 따라서 순방향 전류밀도와 순방향 전압강하에 지배적으로 의존하는 전력손실에 있어서도 일반적인 MPS 정류기와 비교하여 향상되었다. 68% 쇼트키 접합 면적비를 가지는 Mo-MPS 정류기의 역방향 항복전압은 대략 304V로 나타났다. 이는 Al-MPS 및 Pt-MPS 보다 낮은 순방향 전압강하를 가지면서도 높은 역방향 항복전압 특성을 보여준다.

CIM / FMS Ⅰ : 셀형 유연조립시스템에서의 셀배치설계

최형호,노인규 대한산업공학회 1996 대한산업공학회 추계학술대회논문집 Vol.1996 No.-

셀형 유연조립시스템에서의 셀배치설계

최형호,노인규 대한산업공학회 1996 대한산업공학회 추계학술대회논문집 Vol.1996 No.10

Platelet-derived growth factor가 조골세포의 활성에 미치는 영향

최형호,김정근,임성빈,정진형,Choi, Hyoung-Ho,Kim, Jung-Keun,Lim, Sung-Bin,Chung, Chin-Hyung 대한치주과학회 1999 Journal of Periodontal & Implant Science Vol.29 No.4

The cell activities of bone metabolism is affected by growth factor rather than by hormone. The affects of growth factors on the bone activity were observed using various culture methods. Platelet-derived growth factor(PDGF) is produced from the well differentiated bone cell. It stimulates cell mitosis, synthesizes collagen in bone tissue and plays a role in healing response. The purpose of this study is to evaluate the effects that PDGF has on the activity and the proliferation of osteoblast by measuring the activity of alkaline phosphatase, the growth formation of calcified nodules, and osteocalcin production. In this study, HOS and ROS 17/2.8 osteoblastic cell line was used, along with variable concentrations of PDGF the were measured with osteoblastic proliferation. The cell proliferation of HOS and ROS 17/2.8 cells was stimulated dose- depentdently. Alakline phosphatase activity was significantly decreased by PDGF in osteoblastic cells. A number of small calcified nodules were observed in HOS cell treated with low concentrations(0.1, 0.4 ng/ml) of PDGF-BB and no significant difference from control group was found. High concentrations(10, 50 ng/ml) of PDGF suppressed calcified nodule formation. And osteocalcin production was inhibited with PDGF. These results suggest that PDGF stimulates the osteoblastic proliferation, whereas suppresses the individual cellular functions.

폐암절제 후 발생한 기엥-바레 증후군

최형호,김보영,오봉석,서홍주,임영혁,김정중 대한흉부외과학회 2002 Journal of Chest Surgery (J Chest Surg) Vol.35 No.11

Guillain-Barre Syndrome After Resection of Lung Cancer 하행 괴사성 종격동염은 치원성 및 구강인두 감염증의 합병증으로 발병되며 높은 사망률을 보이는 질환이다. 자연성 인두천공이 원인이 되어 발생한 급성 하행 괴사성 종격동염은 국내에서 보고된 바 없으며 영어로 발표된 문헌들을 조사해서도 한 증례만 검색할 수 있었다. 본 증례의 치료과정 중 종격동내의 배농관이 정확하게 위치되어서 효과적인 배농술이 이루어져야 환자의 생존률을 높이는데 도움이 되리라고 생각되었다.가톨릭 대학교 의과대학 흉부외과학 교실에서는 자연성 하인두 천공에 의해 발생한 급성 하행 괴사성 종격동염의 증례를 치험하였기에 보고하는 바이다.

한국의 광역소방응원체계 발전방안에 대한 연구

최형호,이의평 한국방재학회 2020 한국방재학회논문집 Vol.20 No.4

In the event of a large-scale disaster, Korea's wide-area fire support system (WFSS) mobilizes the same personnel and equipment regardless of the type and characteristics of the disaster. Support resources are inefficient for operation with equal mobilization without considering disaster-caused areas and the scope of support. Therefore, the status of the operation of the Emergency Fire Response Team for Disaster Response in Japan, which has developed a rational disaster response system due to frequent earthquakes, was compared and analyzed to demonstrate the direction of the development of the WFSS in Korea. The WFSS should be organized in such a way that the units suitable for the type and characteristics of disasters are mobilized and resources should be regularly provided with a registration and management system. The command of the support unit should form a command system linked to the operation of the existing emergency rescue control group; however, it should strengthen mutual training in close cooperation with related organizations in preparation for complex disasters. In principle, budgets used in response to disasters should be the responsibility of the state. The above-mentioned improvements should be made effective by legislating the “Mobilization Ordinance,” which is the nature of the current National Fire Agency's guidelines, into the Framework Act on Firefighting and Framework Act on Disaster and Safety Management. 대규모 재난발생시 우리나라의 광역소방응원체계는 재난의 유형과 특성에 관계없이 같은 인원과 장비가 동원되고 있으며, 동원자원도 출동거리를 고려하지 않는 일시, 균등한 동원으로 운영에 비효율적이다. 이에 잦은 지진발생으로 비교적 재난대응체계가 발전한 일본의 긴급소방원조대 운영 실태를 비교 분석하여 우리나라의 광역소방응원체계 발전방향을 제시하였다. 광역소방응원은 재난의 유형과 특성에 적합한 부대가 동원되도록 편성하고 자원은 평상시 등록 관리제를 실시해야 한다. 응원부대의현장지휘는 현행 긴급구조통제단 운영과 연계한 지휘체계를 구성하되 복합재난을 대비하여 유관기관과 긴밀한 협조로 합동훈련을 강화해야 한다. 재난대응에 소요된 비용은 국가 부담을 원칙으로 하며 이상과 같은 개선사항은 현행 소방청의 지침 성격인 ‘동원령’을 소방기본법 및 재난 및 안전관리 기본법에 법제화하여 실효를 거두도록 해야 한다.