T1 강조 영상에서 선조체 고신호강도를 보이는 당뇨 환자에서의 편측무도증

정승철,이병철,김상윤,배재천,황성희,도화범,박종호 대한신경과학회 1997 대한신경과학회지 Vol.15 No.1

20년전과 비교한 한국청년의 미소 변화에 관한 연구

범승균,정지혜,김태영,이경은,동진근 大韓齒科補綴學會 2012 대한치과보철학회지 Vol.50 No.3

Purpose: Teeth are generally exposed when people smiling. Moreover, the exposed teeth and soft tissue when smiling becomes an important guideline for esthetically prosthetic restoration. This research is to compare and find out differences of Korean young men's smile living in presence and twenty years ago. Materials and methods: Subjects, 100 young men (50 male and 50 female), were required about several aspects; normally developed physical condition, no psychological or genetic disorders, a fine face with no loss of teeth, no experience in orthodontic or prosthetic treatment, relatively normal occlusion, aged between 20 - 29. The photos of the subject at rest position and front face when fully smiled were taken three times. 100 photos (50 male and 50 female) were chosen at random from the 240 university students' smile photos taken by Yoon and his colleagues in 1991. By Hulsey's method of measuring smile, several factors; the change of upper lip curvature, the change of the relation between the upper lip and teeth, parallelism between Mx. incisor and lower lip, contact relation between Mx. incisor and lower lip and teeth displayed in a smile, were measured and analyzed. Meanwhile, ten dentists assessed aesthetic evaluation about men and women's smile for twice and recorded and compared smile score. The -test (P<.05) was used to compare the measured value. The difference of smile score was analyzed by t-test (P<.05). Results: The smile score calculated in 2011 (60.22) was higher than that of 1991 (52.80). Among five measurement categories, the noticeable difference was distinguished from two factors; the change of upper lip curvature and contact relation between Mx. incisor and lower lip. Conclusion: The Korean young men's smile has been considerably improved for twenty years. And it is found that the change of upper lip curvature plays an important role, that is, the smile formed with an ascended labial commissure has been increased significantly. 연구 목적: 일반적으로 치아는 미소 지을 때 가장 많이 노출되며, 미소 시에 나타나는 치아와 연조직과의 관계 등은 심미적인 보철 수복에 있어서 중요한 지침이 된다. 본 연구는 20년 전 한국 청년들의 미소와 현재 한국 청년들의 미소를 비교하여 그 차이를 알아보고자 하였다. 연구 재료 및 방법: 신체적인 발육 상태가 정상적이고 전신적 또는 유전적 질환이 없으며, 안모가 양호하고 치아의 결손이 없으며 교정 및 보철치료를 받은 경험이 없고, 교합상태가 비교적 정상적인 20 - 29세 사이의 청년 100명(남자 50명, 여자 50명)을 대상으로, Cephalometer에 사용되는 두부 고정 장치를 사용하여 피검자의 F-H plane이 지면에 평행하도록 한 후, 35 mm 카메라(400D. Cannon, Japan), 120 mm 렌즈 그리고 삼각대를 사용하여 피검자의 midsagittal plane에 카메라 렌즈의 중심을 맞추고 상악 중절치 절단과 렌즈와의 거리를 930 mm로 하여 안정위 및 full smile 시의 안모 정면 사진을 3회씩 촬영하였다. 1991년 윤 등이 촬영한 대학생 240명 중 무작위로 선택한 100명(남자 50명, 여 자 50명)의 미소사진과 함께 개인용 컴퓨터 및 V-ceph 6.0 프로그램을 이용하고 Hulsey의 미소 계측 방법을 참고로 하여, 상순의 형태, 상순과 치아와의 관계, 하순과 상악 전치 절단연과의 평행 관계, 하순과 상악 전치 절단연과의 접촉 관계, 미소시 나타나는 치아 등을 계측하고 분석하였다. 한편 치과의사 10인이 남,녀 각 2회씩 미소에 대한 미적 평가를 시행하여 미소평점을 기록하고 비교하였다. 결과: 지난 20년간 한국 청년의 미소가 크게 향상되었으며 이러한 변화는 주로 상순의 형태가 영향을 준 것을 알 수 있었다. 즉 입꼬리가 위로 올라가는 형태의 미소가 괄목할 만한 증가를 보인 반면 입 꼬리가 아래로 처지는 형태의 미소는 현저한 감소를 보였다. 결론: 지난 20년간 한국 청년의 미소가 크게 향상되었는데 이러한 변화는 주로 상순의 형태가 영향을 준 것으로 나타났다.

토끼에서 근육주사시 입자 크기에 따른 amoxicillin의 비교 약물동태학

박승춘,윤효인,오태광,장범수,배순이,조준형,정상희,이내경,김민규 충남대학교 수의과대학 동물의과학연구소 1998 動物醫科學硏究誌 Vol.6 No.-

To investigate the pharmacokinetic difference between the two amoxicillin (AMX) particles in rabbits after intramuscular injection (i.m.), both of AMX-S (particle size: 10 ㎍) and AMX-L (particle size: 100 ㎍) were injected into New Zealand White rabbits (1.2±0.3 ㎏) at a dose rate of 10 ㎎/㎏ of body weight. In this study, serum AMX concentrations were detected by microbiological assay with E. coli BE 1186 which shows high antibiotic sensitivity. After i.m. administration, AMX-S and AMX-L were best fitted as 1-compartment model with the absorption and elimination phase. The biological half-life (T_1/2, _k10) of AMX-S is 4.06±1.09 h and that of AMX-L 4.76±0.69 h. The serum maximal concentration time (T_max) of AMX-S and AMX-L were 0.88±0.17 h and 0.77±0.11 h, respectively. Maximal AMX concentration (C_max) (AMX-S: 5.71±0.62 ㎍/㎖, AMX-L: 5.04±0.25 ㎍/㎖) in serum showed a significant difference (p<0.05). In terms of bioequivalance, however, there was no difference between the two AMX's after i.m. injection in the basis of C_max and AUC.

유방의 비종양성 및 종양성 병변에서 actin과 broad-spectrum keratin 양성세포에 대한 면역조직화학적 검사

이규범,김인선,백승룡 고려대학교 의과대학 1989 고려대 의대 잡지 Vol.26 No.2

An immunohistochemical study was done in nonneoplastic and neoplastic breast diseases to detect the distribution and pattern of action-positive myoepithelial cells, and keratin-positive epithelial cells by using strept ABC method if formalin-fixed and paraffin-embedded tissues. The results obtained are as follows: 1. In 7 cases of fibrocystic diseases including sclerosing adenosis, a continuous layer of actin-positive myoepithelial cells and less prominent keratin-positive inner epithelial cells were noted. Actin reactivity was weaker in the smaller ducts. 2. The staining pattern with antibodies to actin and keratin in 11 cases of fibroadenoma was similar to that found in the fibrocystic disease, except more actin-positive myoepithelial cells in the intracanalicular type of fibroadenoma than those in the pencanalicular type. 3. In 13 cases of invasive ductal carcinomas, all showed actin-positive and keratin-positive tumor cells, and among them 4 cases revealed the heterogenity of tumor cells with both actin and keratin positivity. In 4 cases of invasive lobular carcinomas, actin-positive cells were found in all, whereas keratin -positive tumor cells were in only one.

간접 분광광도 검출법을 이용한 비발색 음이온들의 액체 크로마토그래피

吳海範,郭皇來,李承錫 又石大學校 1991 論文集 Vol.13 No.-

The separation of non-chromophoric anions were studied on the ion-cxchange chromatography method by HPLC.a-Naphthalenesulfonic acid(α-NS) was used as a visualization agent as well as ion-exchange agent in this experiments by indirect photometric detection method. Also, several factors affecting to the retention time and the separations of samples were investigated. And, the following results were obtained in this study. 1. These non-chromophoric anions were detected by the indirect photometric detection method at the 285nm for α-NS 2. The capacity factor of samples was influenced by the concentration of α-NS and the strength of organic solvent. 3. Some mixtures of samples were able to separated with good resolution and relatively high sensitivity providing detection limit of 0.1㎍ under optimum condition.

하악 우악부 골절의 구내접근법에 대한 임상적 평가

진국범,박경옥,이동근,장동호,민승기,방만혁 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.1

Recently, we have used internal fixation with titanium miniplate which introduced by Champy in 1976 in facial bone fractures. In cases of mandibular fractures, particulary mandibular angle fractures, we usually underwent the open reduction extraorally. But extraoral approaches may leave scars and put the facial nerve at greater risk. So, we had undergone the intraoral approaches in 31 patients of mandibular angle fractures (male : 29, female : 2)> These patients visited in Wonkwang university hospital from October 1991 to June 1993. We got easy operation time as average 20 minutes than extraoral approach. And reduced the postoperative nerve injury(14.2%), but postoperative infection is 6.1% nearly as same as extraoral approach. TMJ problems after intraoral open reduction was similar to extraoral approaches.

전기 철도 계통의 사고모의 및 고장점 표정

서재범,강상희,이승재 明知大學校 産業技術硏究所 2002 産業技術硏究所論文集 Vol.21 No.-

In this paper, an algorithm for fault location in Auto Transformer (AT) Feeding Railway system is presented. If a fault occurs at the AT feeding circuits of electrical railway system, it is very important to find fault location and to remove it immediately for the purpose of ensuring safety for transportation. Because the characteristics of reactance - distance are not linear, only using one terminal signals to give fault distance is difficult. In this paper, first, using the KVL, 4 voltage equation are obtained. Secondly, eliminatillg voltage a distance equation which consists of currents at rail and line parameters including mutual effects.

CMOS 집적회로의 테스팅을 위한 새로운 내장형 전류감지 회로의 설계

홍승호,김정범 강원대학교 정보통신연구소 2004 정보통신논문지 Vol.8 No.-

This paper presents a Built-In Current Sensor that detects defects in CMOS integrated circuits using the current testing technique This scheme employs a cross-coupled connected PMOS transistors, it is used as a current comparator. Our proposed scheme has a negligible impact on the performance of the circuit under test (CUT). In addition, in the operation of the normal mode, the Built-In Current Sensor(B1CS) does not have dssipation of extra power, high speed detection tune and it can be appliel deep submcron process. The validty and effectiveness are verified through the HSPICE simulation on circuits with defects The area overhead of a BICS versus the entire chip is about 9.2%. The chip was fabricated with Hynix 0.35,m 2-poly 4-metal N-well CMOS technology.

Surface Plasmon Resonance 기술을 이용한 인체분비물 혈액형 분석에 대한 연구

홍승범,최동호,안희중,이동석,김응수,최상규,이영보 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

한국 행정 모델 및 지식접근체계에 대한 연구

김승윤,전찬흔,이재범 서강대학교 경영학연구원 2003 서강경영논총 Vol.14 No.1

본 연구에서는 분류된 5가지 행정모델을 이용하여 현재 국내 행정모델의 특성을 추출하고, 아울러 행정모델의 전환에 대하여 논의하게 되며, 이를 통하여 한국 행정은 기계적 행정모델에서 네트워크 행정모델로의 이행 시점에 있음을 밝히고자 한다. 네트워크 행정모델 하에서는 지식, 정보, 자료, 멀티미디어 등을 통합한 개념인 컨텐츠가 다양하게 공유되는데, 이 중에서 공유 및 활용의 효과가 가장 큰 것이 지식이다. 네트워크 정부모델 하에서는 지식의 의존도가 그만큼 높아지게 된다. 따라서 지식을 효율적으로 이용하기 위한 방안으로 지식접근체계 개념을 도입하여 행정지식을 사용자 관점에서 분류하고, 이를 통하여 대면공유 전략과 지식재사용 전략의 상호 보완적인 활용이 가능함을 제시한다.