급성 심근경색증에 동반된 승모판 폐쇄부전증의 임상적 특징

정상만,조영일,조화상,유광하,송기호,인행환 건국대학교 의과학연구소 1997 건국의과학학술지 Vol.- No.7

정신과 입원환자의 공격행동에 대한 연구

이귀행,김상원 大韓神經精神醫學會 1992 신경정신의학 Vol.31 No.2

This study was performed to evaluate the episodic aggressive behaviors of psychiatric patients who had admitted at Wonkwang University hospital from March 20. 1990 to March 19. 1991. The staffs assessed these episodic aggressive behaviors by Yudofsky's Overt Aggression Scale treanslated into korean. The results were estimated acceding to demographic aspects and diagnostic criterias. During the period of this research, for about 1 year. episodic aggressive behaviors occured in 211(22.5%) patients of the 938 admitted patients and in 745(1.2%) cases of the 64021 inpatients. 49.8% of total aggressive behaviors appeared within one month after admission. 37% from 12 to 18 o'clock during a day, 76.8% in patients with enduring illness more than 25 months. Means of postadmission day of aggressive behaviors for manic episodes. paranoid schizophrenics, personality disorder, and nonparanoid schizophrenics were 18.64, 58, 38, 87.61 and 109.51 days, respectively. Patients of coerced admission, in close ward. readmission. or history of violence before admission made more frequent aggressive behaviors than patients of voluntary admission. in open ward. first admission or no history of violence before admission. In order of frequency, aggressive behaviors occured in corridor, own room, nursing room and were discovered by other patients, nurse, attendant and doctor. Although most aggressive behaviors appeared in schizophrenia, the patients with schizoalfective disorder, manic episode and organic mental disorder were more aggressive than the patients with schizophrenia, alcohol abuse and dependency according to ratio of frequency of aggressive behavior to the number of patients. In major diagnostic categories, the patients with manic episodes was more aggressive than the patient with nonparanoid schizophrenia or personality disorder, and the patients with schizophrenics paranoid type was more aggressive than the patient with nonparanoid type according to total aggression score.

오프라인 프로그래밍을 이용한 스카라 로봇의 비쥬얼 피드백 제어

신행봉,이우송,이현철,한성현 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-

The equipment of industrial robot in manufacturing and assembly lines has rapidly increased. In order to achieve high productivity and flexibility, it becomes very important to develop the visual feedback control system with Off-Line Programming System(OLPS). We can save much efforts and time in adjusting robots to newly defined workcells by using OLPS. A proposed visual calibration scheme is based on position-based visual feedback. The calibration program firstly generates predicted images of objects in an assumed end-effector position. The process to generate predicted images consists of projection to screen-coordinates, visible range test, and construction of simple silhouette figures. Then, camera images acquired are compared with predicted ones for updating position and orientation data. Computation of error is very simple because the scheme is based on perspective projection, which can be also expanded to experimental results. Computation time can be extremely reduced because the proposed method does not require the precise calculation of tree-dimensional object data and image Jacobian.

제주도 황새목 분포에 관한 연구

고상범,박행신 濟州大學校 師範大學 科學敎育硏究所 1990 科學敎育 Vol.7 No.-

The results of the present study on the distrbution of ciconiiformes were as fol-low : 1. The ciconiiformes observed for one year at Changhongdong fish farm and Ydongsu were 11 species(387 individuals) and 7 species( 138 individuals) respecti-vely. And common species of the two survey ateas were 7 species. 2. Monthly ciconiformes species number was extremely increeased in May and June and was decreased in winter. 3. The dominant species at Changhongdong fish farm was Egretta gamtta and was the followed by Ardea cinerea and Egretta intermedia in other. The dominant species at Yongsu reservoir was Egretfa guneftu. And the indivi-dual numbers of Bubulcus ibis. Egretta intermedia and Ardea cima were same.

급성 심근경색증에 동반된 승모판 폐쇄부전증의 임상적 특징

정상만,조영일,조화상,유광하,송기호,인행환 건국대학교 의과학연구소 1997 건국의과학학술지 Vol.7 No.-

The early detection and proper management of mitral regurgitation(MR) associated with acute myocardial infarction(MI) is very important to improve the clinical course and outcome of disease. The change of left ventricular shape and regional function, papillary muscle rupture are major determinant of the existence and severity of MR. We performed 2D and M mode echocardiography of 28 patients at the early stage of acute MI to evaluate the existance and degree of MR and its pathogenetic factor. Significant MR occured in 12 (42.9%) patients. In the group of MI with MR, the inferior MI was frequent (7 case) than anterior MI (5 case) comparing to the patient group of MI without MR (inferior MI : 6 case, anterior MI : 10 case) (p<0.01).The left ventricular end diastolic dimension(LVEDD), end systolic dimension (LVESD) and left atrial dimension (LAD) were significantly increased in MI with MR than MI without MR (LVEDD : 57.3 ±8.6 vs 46.4 ±9.2, p<0.05 ; LVESD : 52.9 ±9.2 vs 38.3 ±7.4, p<0.01 ; LAD : 45.4 ±3.8 vs 37.7 ±3.7, p<0.05).However, the ejection fraction was not different between two group two groups. These datas showed that MR was more frequent in inferior MI and the hemodynamic derangement was more serious in acute MI with MR.

스카라 로봇의 속도제어를 위한 지능제어 알고리즘 개발

한성현,신행봉,Le Xuan Thu,안종국 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-

We propose a new technique to the development of Intelligent control algorithm based-on digital signal processors in order to improve the precision and robustness for system of industrial robot. Intelligent control has emerged as one of the most active and fruitful areas for research in the applications of fuzzy set theory, especially in the real of industrial processes. In this thesis, a self-organizing fuzzy controller for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy logic composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult, SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules. The proposed scheme is simple in structure, fast in computation, and suitable for implementation of real-time control. Performance is illustrated by simulation and experimental results for SCARA robot.

자기구성 퍼지제어에 의한 8축 로봇의 강인제어

신행봉,김종수,김홍래,한성현 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

In this paper, it is presented a new technique to the design and real-time implementation of fuzzy control system based-on digital signal processors in order to improve the precision and robustness for system of industrial robot. Fuzzy control has emerged as one of the most active and fruitful areas for research in the applications of fuzzy set theory, especially in the real of industrial processes. In this thesis, a self-organizing fuzzy controller for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy logic composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis of a FLC, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult, SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules. The proposed SOFC scheme is simple in structure, fast in computation, and suitable for implementation of real-time control. Performance of the SOFC is illustrated by simulation and experimental results for robot with eight joints.

색채단어 간섭검사로 본 정신분열증 환자의 주의력 장애

이상렬,이귀행,오상우 大韓神經精神醫學會 1991 신경정신의학 Vol.30 No.1

This study was conducted to investigate the attention span of positive and negative schizophrenic patients. The subjects of consisted of 3 groups : 32 positive schizophrenics, 32 negative shiczophrenics and 32 normal controls. Stroop Color Word Test were adminstered to each group after they were evaluated according to age, educational level, duration of current admission, information scores of KWIS, daily dose of antipsychotics, and state-trait anxiety scores of Spielberger. The results were as follows ; 1) For the word card, the reaction time was significantly different between the schizophrenic group and normal group(P〈.01), and number of errors were significant between the schizophrenic group and normal(P〈0.05). But, there was no significant difference between the two schizophrenic groups in reaction time and number of errors, and between the negative schizophrenic group and control group in number of errors. 2) Fro the color card, the reaction time was significantly different between the schizophrenic group and normal group(P〈0.01), and among the three groups(P〈0.05). The number of errors were significantly different among the three groups(P〈0.01). 3) For the attention to word on incongruent color-word, the reaction time and number of errors were significantly different between the two schizophrenic groups and normal group(P〈.01), but there was no significant difference between the positive and negative schizophrenic group in reaction time, and the negative schizophrenic group have significantly more number of errors than the positive schizophrenic group and control group. 4) For the attention to color on incongruent color-word card, the reaction time was significantly different among the three groups(P〈0.01), and the number of errors were significantly different between the positive and negative schizophrenic group, and between control group and the negative group(P〈0.01) 5) In relative comparision, there were significantly longer reaction time and more errors in the negative than in the positive schizophrenic group to attention to color on incongruent color-word card than to the attention to word on same card(P〈.01). 6) In relative comparision, there were significantly longer reaction time and more errors in the negative than in the positibe schizophrenic group at to the attention to color on incongruent color-word card than to the color card(P〈.01).

Cadmium Chloride가 흰쥐 폐포간 중격에 미치는 영향에 관한 전자현미경적 연구

오상준,지행옥 한양대학교 의과대학 1993 한양의대 학술지 Vol.13 No.1

It is known that cadmium, heavy metal, is very harmful and toxic to human bodies. Therefore, the chronic effects of cadmium chloride on the ultrastructures of rat alveolar septum were studied in 40 adult male rats (Wistar strain) by electron microscopy. Rats were intraperitoneally injected, once a week for 10 weeks, with cadmium cholride (3.75 mg/kg body weight) or saline as control. Animals were sacrificed 1 day, 1 week, and 2 weeks after the last injection. 1. in 1-day grou., large expanded air sacs were developed between the basal lamina and endothlial cells of capillaries. In the cytoplasm of great alveolar cell, lamellation of lamellated bodies was reduced and the smooth surfaced endoplsmic reticulum was in creased. 2. In 1-week group, alveolar wall capillaries were dilated and numerous areas of edema were seen in the alveolar septum. Great alveolar cells and fibroblasts were increased in number. 3. In 2-week group, the find structures of alveolar septum were intact such that they were similar to those of controls In conclusion, these findings suggest that cadmium chloride causes morphological changes of the lung alveolar septum in rats. Those changes, however, seem to normalize within 2 weeks following the last dose of cadmium chloride.

자살 재기도자에 관한 정신의학적 연구

한상엽,김행숙,박태수 大韓神經精神醫學會 1971 신경정신의학 Vol.10 No.2

This study was primarily designed to examine the probable difference, if any, of c causing factor to suicide among those who had previously attempted to commit suicide and initially attempted to commit suicide. The subjects were those who attempted to commit suicide and brought to the Suicide Prevention Center, Catholic Medical Center during the period from November 1, 1969 to December 31, 1971. Number of the subjects studied was 55 cases of re-attempted suicide and 159 case of once-attempted suicide in the period. The subjects represent the number which were thought to have met sufficiently the designed criteria for this particular study in terms fo cooperation, length of stay in the hospital and degree of reliability. The subjects were interviewed by the authors by the means of general psychiatric interview technique along with questionnaire card that had already been prepared for the purpose. Followings were the main results of the study: (1) Age distribution relatively that it was heavily concentrated to the ages of adolescent & old age group. (2) Sex distribution revealed no significant difference on the re-attempted suicide and once-attempted suicide. (3) The majority of the re-attempted suicides were tentatively diagnosed as schiazophrenia (23.63%) & personality disorder (20.0%). (4) The direct motives for the re-attempted cases were that of psychological problems such as mentai diseases, frustrated love relationship, inferiority, family discord & financial crisis et al. (5) Of the total number of 55 cases of re-attempted suicides, 10.9% of the interviewees accepted the need for further psychiatric treatment despite the fact that the physicians explained them the need of further care by every possible means. 76.36% had frankly denied the needs.