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채민기(Min-Gi Chae),정준영(Jun-Young Jung),박철제(Chul-Je Park),장인훈(In-Hun Jang),박현섭(Hyun Sub Park) 제어로봇시스템학회 2012 제어·로봇·시스템학회 논문지 Vol.18 No.7
This paper proposes the gait phase classifier using backpropagation neural networks method which uses the angle of lower body’s joints and ground reaction force as input signals. The classification of a gait phase is useful to understand the gait characteristics of pathologic gait and to control the gait rehabilitation systems. The classifier categorizes a gait cycle as 7 phases which are commonly used to classify the sub-phases of the gait in the literature. We verify the efficiency of the proposed method through experiments.
사관생도의 체육활동을 통한 사회성발달요인이 신체적 자기효능감에 미치는 영향
민창기(Min, Chang-Gi),이종민(Lee, Jong-Min),박상섭(Park, Sang-Sub),박순희(Park, Sun-Hee),김인기(Kim, In-Ki) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.2
The purpose of this study of cadets social development through physical activity factor out the impact of physical self-efficacy are seeing. To this end, on the basis of previous research and theory, cadets according to the individual characteristics of participants in physical activity factors, social development, and physical effects on self-efficacy was determined empirically. The subjects of this study are based in KAFA cadets to participate in physical activity among the 200 selected patients, 169 were used in the final part were used. By the way, more studies were summarized as follows. First, the social development of the sub-factors of the social factors, governance, stability, no statistically significant differences between men and women in the show, and overall social development factors in men than in women was higher. Physical self-efficacy subscale of physical competence and physical attractiveness in the sense of gender showed statistically significant differences, and about the physical self-efficacy was higher in women than men. Second, the social development of the factors involved in the stability of the sub-factors, depending on stocks showed a statistically significant difference, and the overall social development factors were the highest in the group event. Self-efficacy of physical competence subscale of the body involved in the events showed significant differences according to the tatistical and physical competence, the individual events and the most underestimated, interpersonal and organization in order. In other words, the overall physical self-efficacy and the lowest individual events, personal events, corporate events in order, respectively. Third, social development, physical factors impact on self-efficacy to evaluate the results with social dominance physical competence, physical self-expression, sense of physical attractiveness showed a positive correlation, and perceived physical ability and a negative correlation with has shown. Stability in the perceived physical ability, has shown a positive correlation.
김기원, 양명섭, 박승배 초당대학교 초고속정보화센터 2001 초고속정보화센터논문집 Vol.2 No.-
본 논문에서는 전화선을 통해 사랑이 발성한 음성을 저장, 학습하여 사용자가 다시 그 내용을 발성할 경우 자동적으로 이를 인식하는 시스템을 설계, 구현한다. 본 논문에서 구현한 시스템은 신경 회로망과 동적 시간 정합법을 이용하는 하이브리드 형태의 시스템으로, 특징 파라미터로는 필터 뱅크 계수를 사용하였으며 필터 뱅크 계수의 차원수를 줄여 처리 속도를 빠르게 하기 위한 방안으로 자기 조직화 지도를 사용하였다. 또한 자기 조직화 지도에 대응하여 동작하는 상부 인식기로는 소규모 고립단어 인식에 적합한 동적 시간 정합법을 채택하였다. In this study, we design and implement the system which learn a speech registered by people through telephone network and recognize it automatically when a user repeats it. What we have done in this study is to make hybrid type system which uses a neural network and a dynamic time warping. We performed a summary end point detection by using Rabiner & Sambur method which was a corrected form, using only log energy, as end point detection of a speech. We used filler bank coefficient as a feature parameter and self organization feature map to make its proceeding fast by decreasing filter bank coefficient. We took a dynamic time warping which was proper for recognizing small isolated words as an upper recognition system which is against self organization feature map.
가변 비트율을 통한 적응형 스트리밍 서비스 시스템의 설계
양명섭, 김기원, 박승배 초당대학교 초고속정보화센터 2001 초고속정보화센터논문집 Vol.2 No.-
최근 VOD(Video On Demand)나 AOD(Audio On Demand) 서비스가 급증하면서 멀티미디어 스트리밍 기술에 대한 관심이 커지고 있다. 기존의 스트리밍 서비스는 정적으로 멀티미디어를 전송하므로 네트워크 환경의 대역폭(bandwidth) 변화에 대처하는데 한계가 있다. 이러한 문제점을 해결하기 위하여 본 논문에서는 적응형 스트리밍 서비스(ASS; Adaptive Streaming Service) 시스템을 제안한다. ASS 시스템은 가변 비트율을 통한 미디어 스케일링방식을 이용하여 멀티미디어 데이터를 동적으로 전송한다. 기존의 스트리밍 서비스의 버퍼링 방식의 단점을 해결하기 위하여 본 논문에서는 프레임 조정방식과 화질 조정방식을 동시에 채택하여 적용함으로써 고화질이 보장되는 전송환경(비디오의 프레임 정보는 단위 시간당 프레임 수 3단계, 화질 5단계)과 느린 회선에서도 끊김없이 안정적인 스트리밍 서비스를 제공받을 수 있도록 한다. ASS시스템을 실제 네트워크 환경에서 사용하면 멀티미디어 전송시 대역폭 변화에 대처하는 한계를 극복할 수 있으며, 보다 안정된 스트리밍 서비스를 제공받을 수 있을 것이다. As the service of VOD(Video On Demand) and AOD(Audio On Demand) increases, the need for multimedia streaming technique is on the increase. Because of static transmission of existing multimedia streaming service, it is difficult to deal with variation of bandwidth. Thus we propose a ASS(Adaptive Streaming Service) system in order to provide more efficient multimedia streaming service. Because ASS system use the method of media streaming using variable bit rate, ASS system is possible to dynamic transmission. As the ASS system accept both control method of frame and control method of quality, ASS system is possible to provide stable streaming service without cutting at slow line and to provide high quality at transmission environment(video frame : step 3, quality : step 5 frame per hour). If we implement ASS system on network, then we'll solve the problems about variation of bandwidth and it'll be provide us stable streaming service.
세로토닌성 항우울제가 백서의 Schedule-Induced Polydipsia에 미치는 영향
이기철,이정호,박중섭,최영민,전성일,정홍경,하준명,정재현 대한생물치료정신의학회 1999 생물치료정신의학 Vol.5 No.2
Object : Schedule-induced polydipsia is considered as an animal model of obsessive-compulsive disorder inrats. The authors evaluated the chronic effects of fluoxetine and clomipramine as serotonergic antidepressants and haloperidol as dopaminergic antagonist on the schedule-induced polydipsia in rat.Methods : Spraque-Dawley rats weighing 200-250gm were individually housed, maintained and allowed free access to water for 1 week. And then the rats were placed on a restricted diet. To induce polydipsia, rats were placed in automatic cage where a pellet dispenser automatically dispensed 90mg pellets on a fixed-time 60 seconds(FT 60s) feeding schedule over 150-minute test session for a day. Water was available at all times during the feeding schedule in automatic cage. After 4 weeks of daily exposure to the FT 60s feeding schedule, experimental rats met a predetermined criterion for polydipsic behavior(greater than 3 times of water per session on average). 4 groups of rats were administered fluoxetine(5mg/kg/i.p.), clomipramine(5mg/kg/i.p.), haloperidol(0.1mg/kg/i.p.), vehicle(1cc/kg/i.p.) for 3 weeks. Rats were tested once a week to access schedule induced polydipsic behavior. The chronic effects of experimental drugs on schedule induced polydipsic behavior were analyzed with repeated analysis of variance and Scheffe test as a post-hoc comparison.In order to measure water consumption in non-polydipsic food-deprived rats, a separate group of rats(N=8) were individually housed and given a single bolus(14.5 gm) of food per day which maintained them at their average body weight.Results and Conclusion : The results were as follows ;1) After 4 weeks of daily feeding procedure with fixed time schedule for 60 seconds per day, the experimental group showed significant differences than the control in the amount of water consumption as compared with their baseline water intakes. At the same periods, there were no differences between the experimental group and the control in body weight. 2) The clomipramine treated group and the fluoxetine treated group showed significant decrease in the amount of water intake as compared with their baseline of polydipsic water intakes for 3 weeks of treatment. However, the haloperidol treated group and the vehicle control group showed no changes of amounts of water intake for 3 weeks of treatment as compared with their baseline of polydipsic water intakes. 3) At 2 weeks of drug treatment, clmipramine treated group(16.88±6.51ml) and the fluoxetine treated group(22.50±10.35ml) showed significantly lower amounts of water intake than the haloperidol treated group (41.25±7.06ml) or vehicle control group(37.50±12.54ml). And also the clomipramine treated group(13.75±5.18ml) and the fluoxetine treated group(18.75±3.54ml) showed significantly lower amounts of water intake than the haloperidol group(35.00±11.65ml) and the vehicle control(34.38±6.78ml) at 3 weeks of drug treatment. Above findings suggest that the fixed time feeding procedure for schedule-induced polydipsia as an animal model of obsessive compulsive disorder was effective to the evaluation of pharmacological challenge study. The author confirmed that schedule-induced polydipsia was successfully decreased for 3 weeks of administration of clomipramine and fluoxetine but there was no response to haloperidol.
안기완,홍승만,전의섭 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.2
Iron deficiency is a common one of nutritional deficiency, which denotes a deficit in total body iron. resulting from iron requirements that exceed iron supply. It remains the most common cause of anemia, both in the Korea and world wide. The development of iron deficiency progresses in stage. storage iron depletion occurs first. at this stage, a bone marrow aspirate staine with Prussan blue shows marked reduced or absent deposits of iron in macrophages and accompained by a decreased in the level of serum ferritin. in the next stage, the iron binding capacity of the serum rises, followed by a drop in serum iron. the final stage is the development of microcytic and hypochromic in circulating red cells. Bone marrow examinations is not essential diagnostic modality of iron deficiency anemia (IDA), but is necessary for early definitive diagnosis of IDA. So, We studied 65 cases of IDA patients who were performed bone marrow aspiration and biopsy. and 60 cases of normal healthy control from January 1990 to necember 1993 in Cho-sun University. The results of the analysis were as follows : 1) The total number of 65 patients were 26 males and 39 females. The peak incidence was at ages of 21-30 years and mean ages was 34.8 years. 2) Gastrointestinal bleeding was the most common cause of IDA (gastric ulcer 23.1%, duodenal ulcer 9.2%, gastric cancer 9.2% and hemorrhagic gastritis 4.2 %). 3) Most patients showed medical attention because of general (61.5%), gastrointestinal (58.5%) or cardio-pulmonary (36.9%)symptoms. 4) The mean hemoglobin level was 7.71± 0.83 g/dl, Mean corpuscular volume(MCV) 71.63± 4.56 fL, Red cell volume distribution width(RDW) 17.23±0.72 %, corrected reticulocyte 1.49±0.45%, serum iron 35.07±25.45 ug/dl, TIBC 352.44±43.99 ug/dl and serum ferritin 8.93±8.42 ng/ml. The peripheral red cell morphology was mainly microcyhz and hypochromic ficture(89.2% and 87.7%). Bone marrow iron stians showed that the suitable iron was absent, grade 0 in 92.3% and grade 1 in 7.7% 5) All cases were treated with iron preparation and 26.2% with blood transfusion(from 1 unit to 15 units). 69.2% showed complete recovery with therapeutic maneuvers and 30.1% relapse or no reponse which was probably stemmed from uncorretability(9.2%), uncooperability (9.2%), side effect(3.1%) and replapse of underlying diseases(6.2%). IDA is not definitive diagnosis, but one of the clinical sign of etiologic diseases. So, for the definintive treatment. it is important that the etiologic diseases were corrected.
임신중독증 환자에서의 혈장 Fibronectin 농도(Ⅱ)
홍기연,이희섭 圓光大學校 醫科學硏究所 1995 圓光醫科學 Vol.11 No.1
In order to evaluate diagnostic and predictive significance of plasma fibronectin in pregnancy induced hypertension(PIH), concentration of plasma fibronectin were measured by Turbidometric End Point method. It is based on 140 cases with PIH, 8 cases with hypertension only group, 30 cases with proteinuria only group and 112 cases with normal control group, who were admitted to our department from November, 1990 to December, 1993. Mean concentration of plasma fibronectin were statistically significant between normal and PIH group, 309.09μg/ml versus 413.3μg/ml repectively(P<0.001). The result suggest that plasma fibronectin is significant in PIH evaluation. But this study does not confirm the usefulness of prediction of PIH.
정규성,조기섭,정재용,조영호,민영돈,박찬국,김만우 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.1
Double pyrolus, one of the relatively rare anomalies of the gastrointestinal tract, is a fistulous communication between the gastric antrum and the duodenal bulb. The first case of a double Pylorus was reported in 1969 by Smith, since then several cases have been reported. Recently, as the frequency of examining upper gastrointestinal series and endoscopy increases, it occurs more frequently and a few cases have been described in our country. According to the reports previously published, it resulted only from cysts, diverticla, atresia, band, membrane malformation of the pylorus, however, it might be also caused by penetration, complication of peptic ulcer. We report a case of double pylorus in a 67-year old man with prolonged administration of corticostetoids due to lumbago who has complained epigastric pain which was confirmed by endoscopy and biopsy.
김태원,조은택,조기섭,정재용,허재봉,장영,박유환,정춘해 조선대학교 1995 The Medical Journal of Chosun University Vol.20 No.1
A retrospective clinical and histologic study of 30 non-Hodgkin's lymphomas diagnosed at the Department of Hemato-oncology of the Chosun University from January 1989 to December 1993 is presented. Among total 30 cases whose sexes were mentioned, male were 18 and female were 12 and the ratio is 1.5:1. The peak incidence of non-Hodgkin's lymphoma was found in the third decade. The case distributions by Working formulation were summarized in table 3. The most common histopathologic type of non-Hodgkin's lymphoma was the diffuse large cell type of intermediate grade. The presenting symptoms at the time of first visit to the hospital were summarized in table 4. The most common symptoms were palpable mass. Lymph node enlargements were found in 87 %, and most frequently on cervical area(35%). The incidence of primary nodal lymphoma is more frequent than extranodal lymphoma, 1.2:1. The most common primary site of extranodal lymphoma is the gastrointestinal tract. In the laboratory findings, the data of hemoglobin and hematocrit were summarized in table 8, 9, Values of hemoglobin and hematocrit of female patients greater than those of male patients. The results of the immunophenotypings of nodal and extranodal lymphoma indicates that the B-cell lymphoma are predominant(B:T=1.4:1). The clinical stage was Ⅱ in 9 cases(30%) Ⅲ in 9 cases(30%), Ⅳ in 8 cases(26.7%), Ⅰin 4 cases(13.3%), 28 cases were treated with CHOP regimen. Among them, 17 cases(60.8%) achieved a complete remission. 5 cases had a partial response. The most frequent toxicities were toxic hepatitis.