어린이에서 수술 중 엎드린 자세와 누운 자세에서의 심박수변이도의 비교

김혜경,김종성,김성덕,김희수,염명걸,백진우 대한마취과학회 2001 Korean Journal of Anesthesiology Vol.41 No.4

Comparison of Heart Rate Variability between the Supine and Prone Plsition during General Anesthesia in Children Hee-Soo Kim, M.D., Jin-Woo Baik, M.D., Chong Sung Kim, M.D., Seong Deok Kim, M.D. Myung0Kul Yum, M.D.^*, and Hae Kyung Kim, M.D.^?? Department of Anesthesiology, College of Medicine, Seoul National University ^*Department of Pediatrics, College of Medicine, Hanyang University ^??Department of Anesthesiology, College of Medicine, Inha University, Incheon, Korea Background: It is well known that the prone position affects hemodynamics. In this study, we investigate whether the prone position will affect the heart rate variability compard with the supine position. Methods: Sixty five pediatric patients were assigned to supine group (n = 36) and prone group (n = 29) according to position during surgery. The patients were indeced with thiopental and vecuronium and maintained with O_2-enflurane-N_2O. ECG data was collected for 15 minutes after saturation at the end tidal concentration of the inhalent agent. From the ECG data, power spectral analysis was performed and approximate entropy was calculated. Results: IN the prone group, low frequency power and ratio of low to high frequency power were lower and approximate entropy was higher than those in the supine group. Mean heart rate and blood pressure were no different between the two groups. Conclusions: IN the prone position, sympathetic autonomic activity and balance of the autonomic nervous system decreased. However the complexity of regulation of heart rate variability was maintained in the prone position. (Korean J Anesthesiol 2001; 41: 455~460)

Destructive Encephalopathy를 보인 Incontinentia Pigmenti 1예

한진규,최재철,박민규,박건우,은백린,정지태,이대희 대한신경과학회 1998 대한신경과학회지 Vol.16 No.5

土龍粉給食이 흰쥐의 消化吸收에 미치는 영향

白貞姬,宋東淑,高鎭福 新羅大學校 1984 論文集 Vol.17 No.-

This study aims to find effect of the diet mixed with earthworm flour on digestion and absorption of the albino rats, The growing albino rats (average weight of male albino rats is 72.3±1.7g and that of female albino rats is 71.8±1.4g) are blocked into three group. The diet groups are control group(GroupⅠ), the diet group fed with 2% mixed earthworm flour every three days (GroupⅡ), and the diet group fed with 2% mixed earthworm flour every day (GroupⅢ). These three group are fed for six weeks and their digestion and absorption rates of nutrients were measured in detail. The obtained results are as folows: 1. In case of male albino rats, the amount of protein intake of Group I was lower than that of Group Ⅱ and Ⅲ, but its protein absorption rate was almost the same as Group Ⅱ and Ⅲ In the case of female albino rats, the amount of protein intake and protein absorption rate of Group I were almost the same as Group Ⅱ and Ⅲ. 2. The amount of nitrogen retention of Group I was lower than that of Group Ⅱ and Ⅲ. 3. The fat absorption rate of Group I was almost the same as Group Ⅱ and Ⅲ. 4. Carbohydrate absorption rate and calory using rate of Group I were almost the same as Group Ⅱ and Ⅲ.

내측 안와벽 골절의 처치

백진아,오향락,양명락,고승오 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.4

Orbital blowout fractures most often occur following blunt trauma to the periobital region. Medial orbital wall fracture first occur at the weakest point of the orbital wall, lamina papyracea of the ethmoid. Medial orbital wall fractures are isolated or combined type with nasal bone, orbital floor, zygoma, ethmoid and frontal bones. Clinical features of the medial orbital wall fractures include periobital edema and ecchymosis, subcutaneous emphysema, epistaxis, limitation of ocular motion, diplopia, and enophthalmos. Goals of treatment in medial orbital wall fracture are reduction of herniated orbital soft tissues and complete reconstruction of orbital wall. We have experienced patients with isolated medial orbital wall fracture and reconstructed medial orbital walls with Medpor and obtained good results.

데이터 레지스트리 기반 XML 데이터 타입 지원 방안

백두권,나홍석,채진석 高麗大學校附設 컴퓨터科學技術硏究所 1999 JOURNAL OF COMPUTER SCIENCE & ENGINEERING TECHNOLO Vol.2 No.-

차세대 인터넷 문서 작성 표준인 XML(eXtensible Markup Language)은 차세대 인터넷 문서 표준으로서 구조적 문서와 사용자 정의 태그를 사용할 수 있는 장점이 있다. 그러나, XML 스팩 1.0에서는 기초적인 데이터 타입만을 정의하였으며, 데이터 타입을 위해 발표한 XML 스키마에서도 데이터 타입 부류 정의와 타입 정의 규칙만 정의하였을 뿐, 타입의 관리와 운용에서 한계를 갖는다. 이러한 문제점은 타입 시스템의 이용으로 얻을 수 있는 이점인, 요소에 대해 질의, 연산자의 이용, 데이터 교환의 자동화 등의 장점을 이용할 수 없다. 본 논문에서는 XML 데이터 타입의 정의, 표현, 이용을 위한 환경을 제시하고 데이터 레지스트리 기반의 타입 정보 시스템을 설계 구현하였다. 논문에서 제안한 환경에서 표준화되고 공유할 수 있는 데이터 요소를 제공할 수 있는 데이터 레지스트리를 이용한다. XML 스키마로 전환이 가능한 데이터 타입 데이터 요소를 정의하기 위하여 타입 정보를 담당하는 요소들을 추출한다. 추출된 요소들을 형식 언어로 전환할 수 있는 전환규칙을 갖는다. 데이터 레지스트리에 저장된 데이터 요소는 XML에서 사용할 수 있는 형식인 XML 스키마로 변환하여 XML 데이터 타입 namespaces에 저장된다. 본 논문에서 구현한 타입 레지스트리는 개발자에게 XML 데이터 타입 정의와 이용을 할 수 있는 환경을 제공함으로써 XML에서 데이터 타입을 편리하게 사용할 수 있는 데이터 타입 정보기반을 제공한다. XML (eXtensible Markup Language)'ll become a next internet standard document format, and enables IT(Information Technology) developers to define their own tags and to write a structural document. But there aren't enough datatypes defined in XML Specification version 1.0. But if there is a type system in XML, then it's possible to use operators or queries about elements or other facilities by using type system. In this paper, we propose a method to define, represent and use datatype by DR(Data Registry). Also we design a Data Registry system served as XML datatype Namespaces and a type information server which stores data elements and schemas to describe the definition and the formal description of datatypes. In this work, some methods are presented to map attributes of datatype into data elements in DR. Our work gives developers an environment to define and use datatypes, so under the environment of XML type information based on the data registry, they easily do their job related with the development of applications in the area of EDI or CALS/EC using XML documents as a protocol.

韓日羈旅信仰比較硏究

白珍豪 서강전문대학 1993 論文集 Vol.12 No.-

古代には交通の不便さと病など族行の危險は數えられないほど多かった故に 家を離れて他鄕に族行する人びとは不安で怖しいものであった. このような不安は旅に行く途中 周圍の自然物に對して 畏敬心と恐怖心に發展されたのであり 特に 村と村 または一置域と區域を境界にしている所では そこを守る神が鎭座していたと信しられ 族行者の不安意識はもっと大きかったのである. したがって族に行く人人は このような不安感から避けるために また 行路の安全を祈請するために 恐しい神が鎭座してあると信じられに場所で 必ず 儀禮的な祭りを行わなければならなかったのである. これが彈旅信仰であったのである. このような 彈族信仰は韓國の「ソナン堂」と「장생」または 日本の「道祖神」で考察することがてきるのである. 本橋では韓國の「ソナン堂」と「장생」そして日本の「道祖神」との比較考察を通じて 兩國の民間信仰で表現されている彈族信仰の構造と形態そして機能面の共通性または相異性に對して 究明しようとする. また 韓國の「獻花歌」と日本の有間皇子の歌の中に內在されている彈族信での樣相がどう投影されているかについて比較考察を通して古代韓日兩國の彈族信仰の桐互連關性について考察しようとする.

시상면 병행에 근거한 신개념의 하악상행지 시상분할 골절단술

백진아,이국엽,오향락,고승오,진우정 大韓顎顔面成形再建外科學會 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.6

Sagittal split osteotomy (SSRO) is an indispensable and most popular operation for correction of mandibular deformity. The procedure was considered of bony contact surface and nerve injury in the early stage. The procedure has undergone continuous surgical modifications for condylar displacement, relapse, psychologic analysis, functional & esthetic improvement, fixation method and postoperative evaluation of soft tissue change over time. In this article, we compared the contemporary operation method with new method which was designed through ramal computed tomography. Now we are going to introduce novel conceptual SSRO namely CNU-SSRO designed by Chonbuk National University and suggest the standardization of pre-existed SSRO.

하악 전돌증 환자에서 악교정 수술전후의 하악 과두각의 변화에 관한 연구

백진아,오향락,신효근 全北大學校 齒醫學硏究所 1993 전북치대논문집 Vol.11 No.1

The main purpose of the surgical correction of dentofacial deformity is to improve esthetic appearance and masticatory functions. In this study, changes in intercondylar width (ICW) and condylar angulation that occurred following bilateral sagittal split osteotomy and mandibular setback were documented and examined using submentovertex radiography. Also, ICW and condylar angulation of patients group were compared with normal control group. Twenty normal adults and sixteen patients were involved in this study. The results were obtained as follows ; 1. Mean condylar angulation of normal control group (n=20) with normal TMJ function and normal occlusion were 15.96° on Left TMJ and 18.30° on Right TMJ. 2. Mean preoperative condylar angulation of patient group were 17.28° on Lt. TMJ and 18.97° on Rt. TMJ. There was no significant difference between the preoperative condylar angulation (n=16) and normal control group (n=20). 3. Mean postoperative condylar angulation of patient group were 17.88° on Lt. TMJ and 18.97° on Rt. TMJ. There was no significant difference between the pre-and postoperative condylar angulation(P>0.05). 4. Mean ICW of normal control group(n=20) was 107.35㎜ and mean ICW of patient group was 104.28㎜. There was no significant difference between preperative ICW and normal control group. 5. Mean postoperative ICW of patient group was 108.13㎜. There was no significant difference between the pre-and postoperative ICW.(P>0.05) 6. There were no significant differences between pre-and postoperative ICW and condylar angulation of male patients (n=6) and female patients (n=10) groups.

하악지 시상분할 골절단술, 하악지 수직 골절단술, 하악지 기역자 골절단술 악교정술의 비교연구

백진아,이국엽,양명철,고승오,진우정 大韓顎顔面成形再建外科學會 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.6

The orthognathic surgery for esthetic and functional improvement has developed for 150 years. Today, we can expect the better prognosis which is based on the early trial & error and advanced analysis technique. However, conservatism which advocates upholding of traditions and passive changes has been obstacle to scientific modernization as a contemporary co-worker. IVRI, ILRO, IVSRO, IVRO-SSRO, SSRO have been used to orthognathic surgery variously. In this article, we are going to compare IVRO, ILO with SSRO and advocate superiority of SSRO.

역삼투 나권형 모듈의 접착제 개발에 관한 연구

김백진,권오운 연세대학교 산업기술연구소 1991 논문집 Vol.23 No.2

In this study, the experiments of glue formulation and property test were conducted to find an optimum formulation which could be applied to the development of RO spiral-wound membrane module. Epoxy resins (E-100, E-200 and E-300 Dong-nam chemical co.), and four kinds of curing agent were used, and among them, the properties of E-200, 300 and 7-22 hardener were best. As an amount of plasticizer incrased, tensile strength decreased and water sorption increased. Tensile strength decreased and water sorption increased as an amount of curing agent increase. In this experiment, various antifoamers which were used for removing bubbles arised in mixing didn't affect joint strength between membrane and permeate spacer. Considering the properties according to the kinds of hardeners, an amount of plasticizer and hardener, optimum formulation of glue mixture was obtained.