일부 성인의 치과 공포감 관련 요인

김수경 ( Soo Kyung Kim ),김미희 ( Mi Hee Kim ),최현지 ( Hyun Ji Choi ),황정근 ( Jung Geun Hwang ) 한국치위생학회 2014 한국치위생학회지 Vol.14 No.6

Objectives: The purpose of the study was to investigate the related factors to dental fear in some adults. Methods: A self-reported questionnaire was filled out by 320 adults in Seoul and Gyeonggi-do from April to June, 2013. Except 14 incomplete answers, data were analyzed by SPSS 18.0 program. The questionnaire consisted of general characteristics of the subjects(7 questions), dental fear related factor(18 questions), distrust for dentist(15 questions), and distrust for dental hygienist(11 questions). The instrument for dental treatment fear was Dental fear Survey(DFS) adapted from Kleinknecht and partly modified by Choi. Out of 20 questions, 18 questions were reconstructed and score by Likert 5 scale. Higher score means higher dental fear. Cronbach alpha was 0.959 in the study. The distrust for dentist and dental hygienist was adapted from Choi and reconstructed and score by Likert 5 scale. Higher score means higher distrust for dentist and dental hygienist. Cronbach alpha was 0.937 in distrust for dentist and 0.874 in distrust for dental hygienist in the study. Results: Those who experienced dental pain tended to have dental fear. The reasons for dental fear were as follows; bad breath(2.96 out of 5 points, hereafter represented as of 2.96/5), dental caries(2.88/5), missing teeth(2.87/5) and tooth pain(2.77/5). The distrust for the dentist was the main dental fear in the adults. Conclusions: The dental fear was closely related to gender, experience of dental pain, oral symptoms and distrust for the dentist. As the psychological pain in the patients was mainly influenced by the trustful atmosphere, it is necessary to make the patient easy before treatment.

자궁 적출술 방법 결정을 위한 복식과 질식 전 자궁 적출술의 비교 연구

최현수(Hyun Soo Choi),이선경(Seun Kyung Lee),김승보(Seung Bo Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.6

Objectives : The most often perfomed major operation in gynecology is hysterectomy.Our purpose was to compare the indications, charateristics and outcomes of patients undergoing total abdominal hysterectomy and total vaginal hysterectomy and to help to establish guidelines to determine the route of hysterectomy.Method : The hospital charts of 400 women who underwent elective inpatient hysterectomy at Kyung-Hee University hospital from January 1994 to January 1999, were abstracted retrospectively. Data were collected regarding patients, age, parity, preoperative indications, the route of hysterectomy, uterine weight, operative and postoperative complications and the length of stay. The operative indications were benign uterine disease except from uterine prolapse. Bisection or combined morcellation were used in most cases to obtain reduction in uterine size.Result : Patients in whom the vaginal route was successful included 18% of those with uterine weights exceeding 280gm. There was statistically significant difference for uterine weight, operative time, bleeding amount, the length of stay in two camparative group. 4% of vaginal hysterectomy and 7% of total abdominal hysterectomy has documented operative complications.Conclusion : Vaginal hysterectomy is safe operation with few intraoperative and postoperative complications without notable blood loss. Vaginal hysterectomy allow one to shorten the operating time and allows early postoperative discharge of some patients from hospital. Skilled performance of vaginal hysterectomy is worth greater attention and should be used more often in gynecological study.

선행 제왕절개 후의 질식 분만시 성공군과 실패군의 비교연구

최현수(Hyun Soo Choi),이상욱(Sang Wook Yi),오영승(Young Seung Oh),진규섭(Kyu seop Jin),이보연(Bo yon Lee),이선경(Seun Kyung Lee),허주엽(Chu Yeop Huh),김승보(Seung Bo Kim) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.10

Objectives: Vaginal birth or trial of labor after previous cesarean section has become one of the most remarkable changes in obstetric practice. The safety and efficacy of a trial of labor and vaginal birth after previous cesarean are well documented. The purpose of this report is to predict the likelihood of vaginal birth in patients undergoing a trial of labor after previous cesarean delivery using factors known at the time of hospital admission. Method: In this retrospective study, 120 women who attempted vaginal birth at Kyung-Hee University Hospital from March 1997 to March 1999. An attempt to identify possible prognostic factors for success of such a trial was made and we evaluated the variables of significant predictive value and the patients' characteristics in the success group and failure group of women who attempted VBAC. Result: 87 cases(72.5%) in 120 cases succeeded in VBAC and 33 cases(27.5%) failed. In this comparative groups in VBAC, there was significant difference in CPD index(cephalopelvic disproportion index) and Bishop score, but no significant difference in gestational age, the estimated fetal weight by sonography and newborn birth weight. Conclusion: In this study, Bishop score and CPD index and age may be useful and valid predictor of success in VBAC and this information could be particularly valuable. The CPD index may prove most important in determining if a vaginal birth should occur after a cesarean section because it can clearly identify some patients who need a repeat cesarean section.

TMS320C30 을 이용한 직접 구동형 로봇 매니퓰레이터 제어기 설계

崔京三,李鐘洙 弘益大學校 科學技術硏究所 1996 科學技術硏究論文集 Vol.7 No.2

A controller for the dynamic control of robot manopulators was designed using a TMS320C30 DSP CPU, which has the highest performance among the third DSP chips in the TI company. The design objective of the system is the real-time implementation of various dynamic control algorithms including neural and fuzzy control, which requires a lot of computation and large memory and has been tested only by simulations so far. The designed controller consists of a TMS320C30 CPU, high speed D/A Converters, 32-bit Counters, 2K Dual port RAM, and 4MB DRAM for the advanced robot control algorithms. We implemented a torque control algorithm on the HongIK-DDA with the developed controller. The Simulation data show that the developed controller functions perfectly and has sufficient computational performance for the dynamic control of robots, which means that various dynamic control algorothms of robot can be implemented realtime with this controller.

그람양성구균에 대한 Teicoplanin과 Vancomycin의 시험관내 항균력

최태열,김경숙,전용관,서일혜,김정욱,이웅수,안정열,김홍석,정재용,최효선,김덕언,유진우 대한감염학회 1994 감염 Vol.26 No.1

An increasing frequency of methicillin resistant S. aureus(MRSA), methicillin resistant coagulase negative staphylococci(MRCNS) and Enterococcal infection have been observed in recent years. Teicoplanin is a new glycopeptide antibiotic obstained from the Actinoplanes teicomycetius. The molecular structure and spectrum of antimicrobial activity of teicoplanin is simillar to those of vancomycin, and has been reported to have an excellent in vitro and in vivo effect against various gram-positive infections. Therefore, we evaluated the in vitor susceptibility of gram positive cocci, such as, S. aureus, coagulase negative Staphylococci(CNS), and Enterococci to teicoplanin and vancomycin. The total 253 strains consisted of MSSA(40), MRSA(53), MSCNS(47), MRCNS(48), and Enterococci(65). They were assayed by disc diffusion and agar dilution. During the study, 57% of S. aureus and 49% of CNS showed resistance to methicillin. The inhibitory diameter of teicoplanin was 15-20mm in MSSA, 12-19mm in MRSA, 13-24mm in MSCNS, 11-23mm in MRCNS, and 15-22mm in Enterococci respectively, and showed sensitivity in all but 8 strains(3.2%). The range of the minimum inhibitory concentration (MIC) of teicoplanin to MSSA, MRSA, MSCNS, MRCNS and Enterococci were 9.12-2.0㎍/ml, 0.25-2.0㎍/ml, & 0.25-32㎍/ml, 0.12-1.0㎍/ml respectively. One case of S. haemolyticus was resistant to teicoplanin (32㎍/ml) by the agar dilution method. Eight minor (3.2%) and one major(0.4%) error was observed when the MIC and disk diffusion data were correlated with teicoplanin. As for vancomycin the inhibitory diameter was 17-21mm in MSSA, 15-21mm in MRSA, 18-26mm in MSCNS, 18-25mm in MRCNS, and 16-22mm in Enterococci respectively. The range of the MIC of vancomycin to MSSA, MRSA, MSCNS, MRCNS, and Enterococci were 0.25-1.0㎍/ml, 0.25-4.0㎍/ml, 0.5-2.0㎍/ml and 0.5-2.0㎍/ml respectively. One minor error (0.4%) was seen with the vancomycin disk. The MIC90 of MSSA and MRSA exhibited the same results in teicoplanin (1.0㎍/ml, 1.0㎍/ml), and vancomycin(2.0㎍/ml, 2.0㎍/ml). MSCNS and MRCNS exhibited greater MIC90 with teicoplanin(4.0㎍/ml, 8.0㎍/ml) than vancomycin(2.0㎍/ml, 2.0㎍/ml). Incontrase Enterococci were more susceptible to teicoplanin(0.5㎍/ml) than to vancomucin (2.0㎍/ml). Results from this analysis indicated that both teicoplanin and vancomycin were very excellent for gram positive infections, especially those resistant to methicillin.

결합조직형성 법랑모세포종의 방사선학적 소견 : 증례보고 3례

최다혜,허경회,문제운,이원진,허민석,이삼선,최순철,박관수 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.37 No.1

Desmoplastic ameloblastoma is a rare histologic variant of ameloblastoma. It shows important differences in anatomic distribution, histologic appearance, and radiographic findings compared with the general type of ameloblastoma. It is histologically characterized by an abundance of densely collagenous stroma and radiographically a mixed radiolucent-radiopaque lesion. We present three cases of desmoplastic ameloblastoma. All the patients complained on buccal swelling with or without pain and the sites of occurrence were the anterior and the premolar region. Plain radiographs showed mixed radiopaque-radiolucent lesion with ill-defined or diffuse sclerotic margin and no external root resorption. Additionally, CT scans revealed buccal expansion and relatively well-defined margin of the lesions. The clinical and radiographic features of the presented cases were compared with those of the desmoplastic ameloblastoma in the previous literatures. (Korean J Oral Maxillofac Radiol 2006; 36 : 63-8)

멀티 에이전트 기반 샾 플로워 제어 시스템

최경현,조수정 朝鮮大學校 機械技術硏究所 2006 機械技術硏究 Vol.9 No.1

This paper addresses an intelligent agent-based shop floor control system for Flexible Manufacturing System(FMS). With an intelligent agent approach, the FMS will be achieve a adaptability to change of manufacturing environment. As the development methodology of shop floor control system, an object-oriented modeling technique is employed for building models associated with FMS operation. The active agent is contributed to control components of FMS in real-time, whereas the coordinator agent has great role. It communicates with other active agents to get information about status on system and generates the next optimal task through the making-decision logic and dispatch it to other active agent.

네트워크를 이용한 매니퓨레이터의 동적 원격 제어

崔京三,李鍾洙 弘益大學校 科學基術硏究所 1998 科學技術硏究論文集 Vol.9 No.2

In this paper, we propose a remote controller for robot manipulators using local area network(LAN) and internet. To do this, we develop a sever-client system as used in the network field. The client system is an any computer in a remote place for the user to log-in the server and manage the remote factory. The sever system is a computer which controls the manipultor and waits for an access from a client. The server system consists of several control algorithms which is needed to drive the manipulator and networking system to transfer images that show the states of work place, and to receive a job data to run the manipulator. The client system consists of a 3D(dimension) graphic user interface for the teaching and off-line tasks like simulations, and external hardware interface which makes iy easier for the user to teach it. Using this server-client system, the user who is in remote place can edit the work schedule of the manipulator, then run the machine after it is transferred and monitor the results of the task.

플라즈마 용사법을 이용한 세라믹 코팅된 ICBT SPINDLE DISK 개발

최순돈,민봉기,최경수 영남대학교 공업기술연구소 2001 工業技術硏究所論文集 Vol.29 No.1

The plasma spray technics has known as one of the surface modification methods to improve the mechanical properties or the functional charactristics of materials. This paper has been aimed to investigate the effects of plasma sprayed conditions, such as spray distance and arc power level, of plasma sprayed Al2O3-40%TiO2 costing layer. The optimum processing for ICBT spindle disk coated plasma spray are showed at spray distance 80mm, APL 40kw.

융모막 세포를 이용한 자연 유산아의 세포유전학적 연구

최수경,김혜영 동국대학교 자연과학연구소 1993 자연과학연구 논문집 Vol.13 No.-

1987년부터 1992년까지 융모막 세포를 이용하여 자연유산아의 핵형분석을 실시하였다. 임신 3개월 이전에 유산된 273예를 대상으로 직접법과 배양법을 이용하여 이상핵형의 빈도와 유형을 관찰하였다. 분석결과 59.7%(163예)의 염색체 이상을 발견하였다. 그 중 삼체성이 60.7%로 가장 높았고, 다배체형이 19%였으며, 단체성 X가 11.7%, 구조적 이상이 5.5%, 기타 3.1%였다. 삼체성중에서 16번 염색체가 가장 많았고, 산모의 평균연령이 높아짐에 따라 빈도가 증가하였다. 산모의 연령은 18번 염색체의 삼체성인 경우에서 가장 높았다. 임신주수는 염색체이상과 큰 관련이 없었으며, 남아와 여아의 성별비는 정상 핵형 유산아일 경우는 0.8 비정상 핵형 유산아의 경우는 0.83이었다. 본 실험은 염색체 이상 빈도와 유형을 관찰하여 반복 태아 손실의 원인을 규명하고 임상적 정보를 제공하는데 그 목적이 있다. Spontaneous abortions were studied by analysing chromosomes from chorionic villi from 1987-1992. The recurrent losses occurred mostly in the first trimester of pregnancy. The frequency and the type of anomalies detected among 273 abortuses were observed by direct and cultured method. Most cases were derived from early abortions before the 13th week of gestation. 163(59.7%) of the 273 abortuses analysed had a chromosome anomaly. Trisomy was predominant (60.7%), followed by polyploidy(19.0%), monosomy X(11.7%), structural anomaly(5.5%), and others (3.1%). Trisomy for the chromosome 16 was most prevalent among trisomies. Mean maternal age was gradually increased for trisomies 16,.21, and 22 and it was the highest for trisomies 18. However, a gestational age was not significant in the present study. Male to female sex ratio was 0.80 for the chromosomally normal and abnormal abortuses respectively. Frequency and type of the chromosome abnormalities may serve as a prerequiste for the investigation of non-chromosomal genetic cause of pregnancy wastage.