내부에 피라미드 구조를 가지는 ISB 판넬의 정적 특성 분석

안동규,이상훈,김민수,한길영,김진석,정창균,양동열 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

The objective of this research work is to investigate into static characteristics of ISB panels with the pyramidal structure as a internally structured material. In order to investigate the behavior of material deformation and frracture characteristics, several tensile tests have been carried out for the ISB panel and skin sheet. Through the results of the experiments, the mechanical properties of ISB panel and skin sheet and fracture characteristics have been obtained. In addition, the mechaical properties of the ISB panel have been compared with that of the skin sheet by the view point of a specific modulus, a specific yield strength and a specific strength. From the results of the comparision, it has been shown that the ISB panel has an excellent static characteristics.

유성견의 소구치 압하시 초기 치아 및 치주 조직의 조직학적 변화와 재생에 관한 연구

안병교,차경석,이진우 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.2

치아에 압하력을 elastic chain을 이용하여 지속적으로 교정력을 평균 9개월된 유 성견의 소구치에 가한 직후 치아와 그 주위 조직에서 일어나는 조직학적인 변화와 압하력을 제거한 후 일정기간이 지난 후 변화되었던 조직의 회복양상을 고찰하고, 이를 토대로 교정치료를 위한 생물학적인 근간을 마련하기 위하여 본 연구를 시행하였으며, Hematoxylin & Eosin 및 Masson's Trichrome염색법을 이용하여 치아와 주위조직의 반응을 치경부, 치근 중앙부, 치근단부로 나누어 광학 현미경하에서 관찰하여 다음과 같은 결론을 얻었다. 1. 대조군의 HE 소견에서 치주인대는 치근단부에서 치근경부까지 비교적 균일한 두께를 나타냈고, 치주인대의 주행방향은 치근경부에 수평 또는 약간 경사져 있었으며, 치근 중앙부와 치근단부에서는 사선으로 주행하였다. 2. 대조군의 MT 소견에서 치경부에서는 조골세포 및 파골세포가 나타났으며 치경부, 치근 중앙부 그리고 치근단부에 약한 골흡수와 신생골 침착이 보였다. 3. 실험1군에서는 치근단부에서 뚜렷한 파골세포의 증가와 혈관 충혈이 보였으며, 신생골 형성과 불규칙한 반전선들이 나타나 골흡후하는 양상을 보였다. 치주인대는 치경부에서 치근단에 이르기까지 뚜렷한 증가를 보였으며 치근단부에서 더 심하였다. 4. 실험 2군에서는 대조군에 비해 조골세포가 치근단부에서 혈관 충혈과 함께 여전히 관찰되었다. 치주인대 폭경은 치근단부에서 대조근에 비해서는 증가되었고 1군에 비해서는 감소된 양상을 보였다. 치주인대 주행방향은 1군과 같았고 단지 치근단부에서 혼합된 양상으로 관찰되었다. 이상과 같은 소견으로 보아 유성견 하악 소구치 압하시 초기 조직변화에서 압박을 받는 치근단부에서 파골세포의 뚜렷한 증가, 출혈상 및 간격확장, 그리고 골흡수와 백악질 흡수가 현저히 나타났으며, 치주인대 주행방향도 다양하였다. 또한 압하력을 제가한 후에 변형되었던 치아와 치아 주위조직들이 완전한 회복 양상을 보이지는 않았다. The purpose of this study was to investigate the initial tissue change, to repair on the teeth & surrounding tissue under the intrusive orthodontic forces by use of elastic chain, through the microscopic findings. For this study, three young adult mongrel dogs were used, and were divied into three group; the control group was delivered only casting crown, and the experimental group 1 was equipped with energy chain during 1 week, and experimental 2 group was delivered using energy chain during 1 week, and 3 weeks observation. All experimental groups and control groups were sacrificed to make the samples for microscopic findings on premolar teeth. All samples were examed and compared the histologic changes through the microscopic with H-E stain. The obtained results were as follows. 1. In hematoxylin-eosin stain of the control group, the periodontal ligament was constant width from apical third to cervical third of the root, and the periodontal fiber arrangement was horizontal or oblique in cervical third, oblique in middle and apical third of the root. 2. In Masson Trichrome stain of the control group, osteoblast and osteoclast appeared in cervical third of root, and bone resorption and new bone formation was observed in middle and apical third of the root. 3. In experimental 1, osteoclasts were increased highly, and hyperemia of blood vessels and new bone formation and bone resorption by reversal line in apical third of the root were seen. PDL width was increased apprarently from crest to apex of the root and more in apical third. 4. In experimental 2, osteoclasts and hyperemia of blood vessels were more increased than control material in apical third of the root. PDL width was increased more than control group in root apex, and was seen less than experimental 1. PDL arrangement was similar to experimental 1 and was mixed only in root apex. Therefore, in premolar intrusion of the young adult dog, there were increased osteoclast, hyperemia and dilation of blood vessel, resorption of alveolar bone and cementum, and different arrangement of PDL in initial tissue change. There was not observed complete repair after remove intrusive force.

둔부 통증을 주소로 내원한 괴사성 근막염 1례

안승찬,류석용,이상래,조석진,오성찬,김홍용 인제대학교 2008 仁濟醫學 Vol.29 No.-

Necrotizing fasciitis (NF) is a rare, life-threatening infection resulting in necrosis of the skin, subcutaneous tissue, and fascia. A very severe and usually fatal fasciitis is caused by a virulent species of streptococcus that is often referred to as the "flesh-eating bacteria". Mortality rates have been noted high. Certain conditions can predispose patients to NF, such as diabetes mellitus, immunosuppressive medications, and AIDS. Patients usually complain of excessive pain as well as constitutional symptoms. Because of this rapid progression, it is important to diagnose and treat NF quickly to decrease mortality. Treatment includes broad-spectrum antibiotic coverage, nutritional supplements, hemodynamic support, wound care, and prompt surgical debridement. We report a case of a 51-year-old man who had presented with right hip pain. Previously, he had been diagnosed with diabetes mellitus and alcoholic liver cirrhosis.

Nuss 방법에 의한 소아 오목가슴 수술 후 정맥 통증자가조절법을 사용한 Fentanyl 과 Fentanyl-Ketorolac의 진통효과 비교

안기량,서은정,김천숙,강규식,유시현,정진헌,정지원 순천향의학연구소 2006 Journal of Soonchunhyang Medical Science Vol.12 No.2

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정신보건법의 주요 쟁점 조항에 대한 선진국과의 사례 비교

홍진표,황순찬,박수빈,서동우,정은기,김진학,박종익,안주연,김수정,장홍석 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.2

Objectives The Mental Health Act is an initiative aimed at changing and shaping mental health services and protecting human rights of persons with mental disorders. Since the Mental Health Act was legislated in 1995, four amendments have been made according to the issues that arose from public concerns. However, there are still many debates about the human rights protection of the mentally iII. This study aimed to provide information regarding major aspects of the Mental Health Act by comparing them among several developed countries. Methods Current Mental Health Acts of the state of Michigan in the United States, Scotland in England, the state of Victoria in Australia, and Japan were reviewed. Issues regarding the Korean Mental Health Act were collected from seminar materials, news media contents, and mental health professionals Results The definition of subjects in Korean Mental Health Act was more inclusive than other countries and was derived from a medical classification of mental illness. Family members or guardians were granted important responsibilities for deciding the involuntary admission of mentally ill patients in Korea and Japan. In Western countries, Mental Health Review Tribunals or courts have the primary responsibility for important decisions about mentally ill patients. The regulation of immediate dis- charge after request by voluntarily admitted patients was not enacted in all countries except Korea. The mandatory procedure for involuntary admission in Western countries includes an individual case review with personal interview by a Mental Health Review Tribunal or court. Conclusion The Korean Mental Health Act appears to meet the basic standards of Guidelines from international organizations. Our traditional culture and inherent health systems seem to influence the legal regulation of mental health service and might be related to the problems of human rights protection of mentally ill patients in Korea.

할로겐화 탄화수소의 흡착제거기술 Ⅱ. Pressure Swing Adsorption 공정에 의한 할로겐화 탄화수소/공기 혼합물의 분리

이태진,안희관,김윤갑,강석호 嶺南大學校 環境問題硏究所 1990 環境硏究 Vol.10 No.1

An experimental study was performed for the bulk separation of halogenated hydrocarbons and air mixture(CF₂Cl₂/air, CH₂Cl₂/air=0.1/99.9 Vol.%) in a pressure swing adsorption (PSA) process packed with various adsorbents, The PSA process cycle comprised four stes : I pressurizaton, II adsorption, III countercurrent depressurrzation, IV purge. The order of appearance of break-through curve is MS-5A > MS-13X > W-AC > S-AC for CF₂Cl₂/Air and W-AC > S-AC > MS-13X for CH₂Cl₂/Air respectively. The separation effects for the variation of adsorption pressure were investigated. In a steady state PSA cycles, high purity air from step II and CFCs-rich gas from step IV were obtained.

산화에 따른 옥수수 전분의 분자량 분포 양상

한진숙,안승요 한국조리과학회 2002 한국식품조리과학회지 Vol.18 No.2

Corn starch was modified by the oxidation with sodium hypochlorite(NaOCl) and the changes in the distribution of molecular weight were examined. Corn starch was oxidized with 0.25, 0.5, 0.75, 1.0, and 1.5% active Cl/g of starch at pH 7.0 and 25℃ for 10 min. Oxidation of corn starch caused a change in the molecular weight distribution of amylopectin. The fraction of highest molecular weight in native starch decreased gradually and the fraction of lower molecular weight increased with increasing oxidation. Also, λ_max and iodine binding capacities of oxidized starches decreased and the soluble carbohydrate content increased by oxidation The differential scanning calorimetric results of oxidized starches showed that the temperature and enthalpies of gelatinization were not changed by oxidation; however, the more the starch was oxidized, the greater the extent of retrogradation.

十二變에 대한 考察 : 六元正紀大論을 중심으로

채영진,남호현,이석모,여성원,한성규,이재원,안민식,정헌영,금경수 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1

The six kinds of natural factors(It refers to wind, cold, summer-heat, dampness, dryness and fire.) is constantly moving to maintain the balance of whole climate of one year. Four seasons are the largest mediation of whole climate of one year. The cold and the heat have the relationship of mutual intervention. The dampness and the dryness have it also. In this process they raise various climate appearance. And that various climate appearance influence the whole lives on the earth. This paper is concerned with the classification of them.

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1994)

김재홍,안진균,정성재,김영태,김중환,김시영,이석종,이홍렬,서호석,김경훈,권혁진,정우권,고우석,이용석,안필수,오준규,오용섭 대한화학요법학회 1996 대한화학요법학회지 Vol.14 No.1

Background : In recent years gonorrhoea has been panendemic and remains one of the most common Sexually Transmitted Diseases in the world, especially in developing countries. Objective & Method : For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria Gonorrhoeae(PPNG), Ive have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1994, 168 strains of N. gonorrhoeae were isolated, among which 109 (64,9% ) were PPNG. Conclustion : Our results suggests that the prevalence of PPNG in Seoul is still increasing.

인천 인현동 호프집 화재 피해자 분석

최정태,안무업,안희철,최영미,정재봉,서정열,유기철,이삼우,박석현,조준휘,김성환,김아진,송근정 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Purpose : This study was conducted to develop field triage, transportation, distribution, and prehospital care at a fire disaster by analyzing the victims of the fore that broke out at a bar in Incheon. Method : We analyzed the cases of the victims of a fire in Incheon in Oct. 1999. We determined the primary care hospital, the arrival time, the burn size, the outcome, and the injury type from the medical records, the concerned organ records, and interviews with concerned persons. Result : The total number of victims was 137: 56 prehospital deaths, 1 hospital death, and 80 survivals. The Pearson correlation coefficient between the burn size and the severity was -0.175. There were 121(89.6%) cases of inhalation injury, 59 (43.7%) cases of flame burns, 66 (48.9%) cases of hypoxic brain damage, and 16 (11.9%) cases involving other types of injury. Conclusion : The causes of death of the fire victims were inhalation injury and hypoxic brain damage due to CO poisoning and other toxic inhalants. We propose the use of a simple triage and rapid treatment(START) system and a reassessment the delayed category in fire disasters.