A Design of the Fuzzy Neural Network Image Recognizer

Kim, Dae-Su Korean Institute of Intelligent Systems 1992 한국지능시스템학회논문지 Vol.2 No.3

Neural networks have become more popular recently and are now being applied to numerous fiedls. One of the major applications of neural networks is image recognition. Various image recognition system have been proposed so far, but there is no definite solution yet. In this paper, we propose a design of Fuzzy Neural Network Image Recognizer(FNNIR). Our model uses a fuzzy neural network model, named SONN[KIM90]. This model returns the information of the number of clusters and cluster and cluster center values for a given image data ste. Unlike the well-kinwn backpropagation technique, we do not need retraining for new data. Our newly designed image recongitionsystem FNNIR that uses fuzzy merger is proposed and experimented for a sample color image.

Photoreflectance 및 Photocurrent 측정에 의한 반절연성 GaAs의 광학적 특성

김기홍,김동렬,배인호,김대년,김인수 嶺南大學校 基礎科學 硏究所 1998 基礎科學硏究 Vol.18 No.-

We report on the room temperature optical characterization of semi-insulating GaAs. The energy gap of semi-insulating GaAs was determined to be 1.41eV by photoreflectance(PR)and possible orgin of the photoreflectance signal is discussed. From photoreflectance(PC)measurement, the peak of PC is observed at 1.40 eV, corresponding to GaAs band to band transition. The influence of temperature and dependent upon the chopper frequency on the PC of semi-insulating GaAs is studied.

텍스트 종류와 Cattell-Horn-Carroll(CHC) 인지요인과의 관계

김수연 ( Su Yhen Kim ),하대현 ( Dae Hyun Ha ) 한국독서학회 2006 독서연구 Vol.0 No.16

초등학교 아동을 대상으로 연구한 보고들을 살펴보면 이야기 텍스트 이해를 설명적 텍스트 이해보다 더 쉬워한다. 이런 차이는 주로 배경지식에 의한 것으로 해석되나 텍스트 이해는 개인의 인지 능력의 영향을 받으며, 인지적 능력의 부족이 이해 능력에 어려움을 가져온다. 본 연구에서는 텍스트의 종류에 따라 어떤 인지적 요인들이 관여하는지를 새로운 지능이론의 관점으로 알아보고자 한다. 본 연구에서 사용된 지능 검사는 현대의 지능이론으로 새로이 제안되는CHC(Cattell-Horn-Carroll) 지능 이론에 따르며 본 연구에서 사용된CHC 지능검사의 신뢰도는 .60-.79이며, 타당도 검증을 위한 탐색적 요인분석과 확인적 요인분석을 실시하여 타당도를 확인하였다. 개인내의 이야기 텍스트를 설명적 텍스트보다 더 이해하기 쉬워한다는 것을 통계적으로 확인하였다. 개인 간 차이로 이야기 텍스트를 더 잘 이해하는 집단과 설명적 텍스트를 더 잘 이해하는 집단 간의 인지적 차이를 살펴보았다. 이야기 텍스트 이해를 잘하는 집단이 Gc(결정지능)와 Ga(청각처리)는 p<.05에서 의미 있는 차이가 있었으며 Gsm(단기기억)은p<.01에서 의미 있게 높은 점수를 보여주었다. 이런 결과는 어려서의 읽기 경험은인지적 요인에 영향을 미치며, 이야기 텍스트를 어려서부터 접하고 경험한 아동의 Gc, Ga, Gsm이 높아질 수 있다는 것을 시사하여 준다. The present study was to explore the relationship between the narrative/expository texts and CHC cognitive ability in 4,5,6 grade elementary school. They were easier to understand the narrative texts than the expository, because of they had not only prior knowledge but also cognitive ability related text comprehension. On the view of recent CHC cognitive ability, this study investigated two types(narrative/ expository) of texts related cognition. The measures of CHC had high reliability and good validity - exploratory, confirmatory factor analysis. The subjects of this study were divided to two groups. The first group was more comprehensible to understand narrative text than expository text. The second group was more comprehensible to understand expository text than narrative text. Between two groups was verified from t-test. The results of this study clearly indicated that the first group was more significant to effect on Gc(comprehension knowledge), Ga(auditory processing) and Gsm (short-term memory) play an important role than the second group.

위발성 위장관 악성림프종 환자에서 항암치료의 효과

김찬규,신영록,김현정,배상병,이남수,이규택,박성규,원종호,홍대식,박희숙 순천향대학교 2006 Journal of Soonchunhyang Medical Science Vol.12 No.1

Purpose: The gastrointestinal (GI) tract is the most common site of extranodal non-Hodgkin's lymphoma (NHL), which is increasing in incidence, but there is no established optimal treatment modality. Thus, this study was investigated the clinicohistologic feature, the therapeutic modalities, and the prognosis for GI-NHL, as well as the factors affecting it. Methods: We retrospectively analyzed 45 patients who had been diagnosed as having GI-NHL and had been followed up from July 1994 to February 2005 at Soonchunhyang University Hospital. The patients were divided into groups according to the site of origin and to various other features, and the survivals of the various groups were compared. The modified Ann Arbor system and WHO classification were adopted for staging and histopathologic classification, respectively. Results: GI-NHL of the stomach, small bowel, ileocecal region, and colon occurred in 28 patients (62.2%), 5 patients (11.1%), 3 patients (6.7%), and 8 patients (17.8%), respectively, In one patient, the entire gastrointestinal tract was diffusely involved. The median age of patients was b5 years (25~78 years), and male-to-female ratio was 1:1.1. Fourteen patients were in stage Ⅰ, 24 in stage Ⅱ, 4 in stage Ⅲ, and 3 in stage Ⅳ. Surgical resection was performed in 19 patients, and combination chemotherapy was performed in 43 patients. Surgical resection only was performed in 4 patients, Chemotherapy only was performed in 26 patients. The expected overall 5 year survival of 45 patients was 39.6%, and there was a significant survival difference between the stages, but between sites of origin (p=0.842). The most important factors influencing the survival was the stage and other factors were not significant. Conclusion: The stomach was the most common site of GI-NHL. Most GI-NHL were localized Stage was the most important prognostic factor. However, Prospective randomized studies are needed to approve the therapeutic modality.

들깨(Perilla) 品種改良 및 育成에 관한 硏究(Ⅰ) : 施肥水準 및 栽植密度 試驗 Effect of Fertilizer application and Planting density on Perilla

金正基,孫賢秀,安始榮,鄭大守 東亞大學校 1978 東亞論叢 Vol.15 No.2

1977年 本大學校 農科大學에서 들깨栽培에 대한 施肥適量 및 栽培密植密度에 관한 試驗을 實施한 결과는 다음과 같았다. 1. ?酸質 肥料는 10a當 7kg을 施用하는 것이 效果的이었다. 2. 可里 肥料는 10a當 3kg을 施用하는 것이 들깨의 收量을 높여 주었다. 3. 本試驗에서 石?의 施用效果는 별로 없었다. 4. 들깨의 栽植密度는 60cm X 20cm가 가장 收量이 높았다. Factorial experiment was carried out in to determine the adequated amount of fertilizer and planting density for perilla breeding, and the results obtained were as follows; 1) 7kg per 10a of P²O fertilization was found reasonable. 2) 3kg per 10a of potash fertilization was effective for increasing the yields of perilla seed. 3) No effect was recognized in clcim application. 4) Adequate planting density was 60cmX20cm in order to increase the yields.

개선된 교통 신호 제어시스템 설계에 관한 연구

김대성,허광선,권민수,곽동호,원충상 忠州大學校 2010 한국교통대학교 논문집 Vol.45 No.-

There are various ways to operate traffic light system by varying the operational speed of the system. One of the solutions is to vary the length of the clock cycle of the system. It is difficult to vary the length of the signal in systems by varying the period of the clock cycle and nor it is a generalized technology in the current traffic systems. The traffic signal systems of the past used is simply a repetitive traffic signal system which traffic period is consistent, not considering the conditions of traffics. The system that will be introduced in this thesis could substantially improve efficiency of traffic flows by varying the length of traffic signal period with sensors which detect the presence of vehicles on both directions and allows the signal continuously on the direction where there are more waiting vehicles, and even skips the signal where there is no vehicle waiting. In this thesis, it introduces the methodology of detecting the spots that is detected by the sensors of the system and outputs green light in due order in accordance with the priority given to the system. In the meanwhile, the ratio of yellow light and green light is designed to be 1 to 8 in the way that maximizes the efficiency of traffic flows.

재발 또는 불응성 비호즈킨 림프종 환자에서 CDME 구제항암화학요법 후 고용량 항암화학요법 및 자가말초혈액 조혈모세포이식의 효과

김세형,한강원,배상병,김찬규,이남수,이규택,박성규,원종호,홍대식,박희숙 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1

Background and objectives : The long-term survival in patients with non-Hodgkin's lymphoma (NHL) after conventional dose chemotherapy is about 35% and the rest of the patients tend to have relapse. So, in relapsed or refractory NHL, we compared the outcome of patients undergoing high-dose chemotherapy with autologous peripheral blood stem cell transplantation(APBSCT) with only salvage chemotherapy of cisplatin, dexamethasone, mitoxantrone, and etoposide(CDME). Materials and methods : From June 1993 to December 1999, 25 patients with relapsed or resistant NHL were treated with CDME regimen as salvage chemotherapy. Twelve patients were received four cycles of CDME chemotherapy, and 13 patients were received high-dose chemotherapy with APBSCT following two cycles of CDME chemotherapy. Results : The median follow-up duration was 12.8 months(range:4-68). The overall response rate was 41.7% (complete response rate 25%, partial response rate 16.7%) in 12 patients with CDME only. Thirteen patients who were treated with high-dose chemotherapy with APBSCT achieved 61.5% complete response rate and 15.4% partial response rate, with an overall response rate of 76.9%. The estimated 3-year progression-free survival rate was significantly higher among patients who received high-dose therapy than patients who received CDME only(41.5% vs 20.0%, p<0.05). And, 3-year overall survival rate was significantly higher among patients who received high-dose therapy(51.3% vs 25.0%, p <0.05). Conclusions : In relapsed or refractory NHL, CDME chemotherapy is an effective salvage chemotherapy and allow peripheral blood stem cell collection. Also, high-dose chemotherapy with APBSCT following CDME is superior to CDME salvage chemotherapy only.

거대첨규 콘딜로마로부터 속발된 음경암 1치험예 : A Case Report

김수현,정충식,노준,박도영,장대수 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.2

The giant condyloma or carcinoma-like condylima is relatively rare. Although the disease is considered clinically mailgant. the possiblity of maligant changes from them are controversial even among the investigators but cannot be entirely overlooked. Most authorists consider that they get the possibility of malignant change. A case of malignancy of the penis which have apparently been transformed from giant condyloma acuminatum of the penis is herein presented with review of literature.

예압과 냉각방식에 따른 고속주축의 온도분포 및 열변형 해석

김수태,김재실,최대봉,김진한,정동수 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

The use of high speed motor spindle is increasing for high speed machine tools recently. The important problem in the high speed spindles is to reduce and minimize the thermal effect by the motor and ball bearings. Thermal characteristics according to the bearing preload, hollow shaft and oil jacket cooling are studied for the spindle with the oil mist lubrication and high frequency motor. In this study, temperature distribution and thermal deformation are analyzed by using the numerical method This results show that temperature distribution and thermal deformation of the high speed spindle system can be estimated reasonably by using the three dimensional model through the finite element method and support thermal optimization and more effective cooling method.

딸기 비가림 포트 육묘 시 자묘의 유인 위치가 생육에 미치는 영향

김대영,김승유,이희수,이선이 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

This research was conducted to examine the effects on the growth in response to position of daughter plant of strawberry (Fragaria×ananassa)‘Seolhyang’ during the pot nursery in rain shelter. Mixture of soil mother material medium and rice hull(1:1, volume/volume) and commercial medium were used for nursery medium. Uniform daughter plants of about 2.5 expanded leaves were placed on the center and the side of pot and were investigated the growth characteristics of daughter plants after 60 days. As a result, daughter plants on the side of pot showed a tendency to increase total fresh weight, number of primary root, root weight, and crown diameter which is important characteristics of plantlet quality. Number of primary root, root weight, and crown diameter of daughter plants on the side of pot compared to those on the center of pot were increased to 3% and 11%, 7% and 41%, and 5%, respectively. As a result of analysis of root zone using the root analysis system, the total root length, root surface area and root volume of daughter plants on the side of pot compared to those on the center of pot were increased significantly. Those differences were greater in the commercial medium compared to the mixture of soil mother material medium and rice hull(1:1, volume/volume). Thus, it is expected to be improved the plantlet quality of daughter plants and increase the production ratio of high-quality plantlet when daughter plants were placed on the side of pot during the pot nursery in rain shelter.