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포집량에 따른 p-DPF의 정화효율 및 BPT 특성에 관한 실험적 연구
김영조(Young Jo Kim),김태권(Tae Kwon Kim),이춘범(Chun Beom Lee),오광철(Kwang Chul Oh),이경복(Kyung Bok Lee) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
The number of vehicles applied diesel engine are rapidly rising for fuel economy. Accompanying this trend, application of an after-treatment system is strictly required as a result of reinforced emission regulation. The Diesel Particulate Filter (DPF) system is considered as the most efficiency method to reduce particulate matter (PM) by car makers but also in retrofit market. In this paper we defined Cell-Open-Type partial DPF and experimented this for providing its one characteristics. The soot loading mass in DPF can be predicted from increase of differential pressure of DPF so that we can measure filtration efficiency and Balance Point Temperature (BPT) of this DPF by soot loading mass.
김영조(Young Jo Kim) 대한피부과학회 2001 대한피부과학회지 Vol.39 No.12
N/A Background:Postherpetic neuralgia(PHN) is a distressing complication of herpes zoster that can persist for months or even years. Information on this condition is important because antiviral therapy may change the clinical course of the disease. Objective:The aim of this study is to estimate prevalence of PHN according to several risk factors. Methods:We observed prevalence of PHN in 96 patients who had herpes zoster with severe pain and treated with antiviral therapy during the admission. Also, we compared them by age group, dermatomal distribution, and starting day of antiviral therapy, respectively. Results:The prevalence of PHN according to the age was 5.9% in patients younger than 49 years, 40.0% in 50∼59 years, 46.9% in 60∼69 years, and 58.8% in 70 years and older. Sex and dermatomal distribution were not predictors of PHN. The odds ratio per one day difference in antiviral therapy was 1.62(95% confidence interval, 1.56 to 2.23). Conclusion:In herpes zoster with severe pain, age and starting day of antiviral therapy may be significant predictors of PHN. (Korean J Dermatol 2001;39(12):1364~1369)
김영조(Young Jo Kim),신봉석(Bong Seok Shin),정병수(Byoung Soo Chung),나경수(Kyoung Soo Na) 대한피부과학회 2002 대한피부과학회지 Vol.40 No.6
N/A Background : Vitiligo is concerns disorder caused by a loss of epidermal pigment cells. The pigment cells in the skin and uveal tract are similar in their physiology and morphology and share a common embryologic origin. Object : The purpose of our study was to determine the nature of the relationship between vitiligo and ocular disease. Methods : Fifty-two patients with vitiligo were examined for ocular abnormalities. Results : There were 17ocular abnormalities our study; 5 fundal focal hypopigmented spots (9.6%), 6 iris pigment clumps(11.5%), and 6 lens opacity(11.5%). Conclusion : We believe that vitiligo may affect pigment cells in the eye. Therefore, all patients with vitiligo should have ocular examination.
60 cm flexible sigmoidofiberscope 로 관찰된 대장 폴립 및 종양의 임상적 관찰
김영조(Young Jo Kim),이헌주(Heon Ju Lee),정문관(Moon Kwan Chung),최재성(Heon Ju Lee),이영현(Moon Kwan Chung),김종설(Chong Suhl Kim) 대한소화기학회 1985 대한소화기학회지 Vol.17 No.1
N/A The author had an opportunity to study 480 cases with chief complaints of various gastrointestinal symptoms who subsequently underwent to 60cm flexible sigmoidofiberscope examination during the period June 1983 to July 1984 at Department of Internal Medicine, School of Medicine, Yeung-Nam University and the following results were obtained. 1) The incidence of lesions through endoscopy were following that, 48 patients (10%) had colonic polyps, 13 patients (2.7%) had ulcerating cancers among 480, the ratio of male and female was 59:41, the most common range of age was sixth decade, 27.9% of 61 cases (17 cases) and above fifth decade was 86.9% (43 cases). 2) Analysis of histopathological finding revealed that the most common polyps were adenoma, 40% of 42 cases (17 cases), the most common size was less than 1cm of 48 cases(38 cases) and synchronous polyps were 21% of 48 cases (10 cases). 3) The size of malignant changed polyps was l. 5cm and 2cm respectively in 2 cases 4) The seven cases among present series were found at above 25cm from conventional 25cm rigid sigmoidoscopy is not being reached.
김영조(Young Jo Kim),정영기(Young Ki Chung),이병욱(Byung Wook Lee),이상룡(Sang Ryong Lee),최동준(dong Joon choi) 대한소화기학회 1986 대한소화기학회지 Vol.18 No.2
A clinical analysis ivas carried out on 46 cases of pyloric channel ulcers collected from 4,565 persons who had taken gastrofiberscopic examinations from Maich, 1981 to Fchruary, 1986 at the 1)Department of Internal Medicine in the Maryknoll hospital. The results obtained were as follows: 1) Pyloric channel ulcer devloped in 3.8% of incidence from all cases of peptic ulcer. 2) The male to female ratio was 2.5:1. Those in the 4th decades were the most frequently observed age group and the average was 46.2 years of age. 3) The most frequent complaint was upper ahdominal pain with a rate of 69.6% and the next came indigestion, nausea and vomiting, belching, bloating in order. weight loss was in minority (10.9). 4) The most common site of channel ulcer vas anterior wall with a rate of 59.5% and the frequency of the other sites were lesser curvature, greater curvature, posterior wall in order. 5) Considering the healing process of ulcer, the most frequent stage was active stage, the next came healing and scarring stage in order. 6) The longitudinal diameter of active channel ulcer was below 5mm with 68.8% of incidence and almost ones were l0mm or less. The majority of those were round shape. 7) In 45.7% of all cases the channel ulcer did not cambine ulcers on the other sites and 37.0% of the channel ulcers combined gastric ulcer.
선형 보간법에서 사인 함수를 이용한 새로운 가중치 결정
김영조(Young-Jo Kim),이정현(Junghyun Lee),정제창(Jechang Jeong) 대한전자공학회 2017 대한전자공학회 학술대회 Vol.2017 No.6
Nearest neighbor interpolation, bilinear interpolation, bicubic interpolation and b-spline interpolation are used in various fields. There are many method of weighted distance, and a cubic function, one of the weighted distance method, is typically used for bilinear interpolation. In this paper, we propose a sine function for weighted distance instead of the cubic function. By using sine function as a new weighted distance, we gain more curvature than using cubic function as a weighted distance. In this paper, we discuss the differences on PSNR values of bilinear interpolation, cubic function and sine function for weighted distance.
축산물가공품에서 대장균군수 측정 표준검사법과 TEMPO(R) CC 자동화장비와의 비교 분석
김영조 ( Young Jo Kim ),위성환 ( Sung Hwan Wee ),윤하정 ( Ha Jung Yoon ),허은정 ( Eun Jeong Heo ),박현정 ( Hyun Jung Park ),김지호 ( Ji Ho Kim ),문진산 ( Jin San Moon ) 한국예방수의학회(구 한국수의공중보건학회) 2011 예방수의학회지 Vol.35 No.2
To evaluate the performance of a new automated coliform enumeration system (TEMPO(R) CC) for the quantitative test of coliform bacteria contaminated in domestic livestock processed foods, a total of 507 samples of livestock foods were tested by the TEMPO(R) CC method, the most probable number (MPN) method, and Petrifilm method, respectively. The results of those three methods were compared to each other. Of 507 samples of livestock processed foods used in this study, 217 samples were contaminated artificially with coliform bacteria and the rest (n=290) were contaminated naturally. The results of the TEMPO(R) CC method for all samples were equivalent to those obtained from the MPN method, except 8 samples. In addition, 496 (97.8%) out of 507 samples made agreement between the TEMPO(R) CC method and the Petrifilm method. The correlation coefficients between TEMPO(R) CC and MPN methods as well as between TEMPO(R) CC method and Petrifilm method were above 0.9, and the slope and intercept of the linear regression model was different in less than 1 value. In conclusion, there were statistically equivalent levels of performance between the TEMPO(R) CC and the reference and alternative methods for the enumeration of coliform bacteria in livestock processed foods in this study.