A comparison study between the AESOPUS Low Temperature Opacity and that of Ferguson, on Standard Stellar Models and Isochrones

Yong –Cheol Kim,Minje Beom 한국천문학회 2018 天文學會報 Vol.43 No.1

회맹장 및 대장을 침범한 장 결핵에 있어서 바륨을 이용한 방사선 이중조영촬영 소견에 대한 연구

진용현,전혜정,이용근,강철호,조성범,김윤환,박철민,차상훈,김일영,이혜경 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-

To determine the characteristic double contrast barium enema findings of ileo-cecal and colonic tuberculosis and to make differential diagnosis from other bowel inflammatory disease. Sixty-seven patients confirmed as ileo-cecal and/or colonic-tuberculosis in six hospitals were evaluated retrospectively. The diagnosis was proven by endoscopic biopsy, surgery, and clinical follow up. Nine of 67 patients were excluded because radiologic findings were normal though endocopic biopsy examinations resulted in tuberculosis. Histopathological diagnosis were madein 58 cases as follows: endoscopic biopsy(n=29), operation(n=12), follow up examination(n=14), tissue culture(n=1), laparoscopic biopsy(n=2). There were 30 men and 28 females. The mean age were 36 yrs(range:16-67), 34 patients were in the second and third decade. The distribution of lesions, morphological characteristics, mucosal changes, ulcer shape and depth, associated with other tuberculous lesion, multiplicity were retrospectively analyzed in the findngs of double contrast barim enema. The commonest clinical symptoms were abdominal pain(n=35, 60%) and diarrhea(n=18, 31%). The chest radiography revealed association of pulmonary tuberculosis in 39 cases. Tuberculous lesions of other organs except chest were present in five cases. Double contrast barium enema findings showed a thickening and irregularity of intestinal mucosal fold(n=29, 50%), bowel contraction and/or shortening(n=26, 45%). There were small, nodular, superficial ulcers in the case of ulcer depth less than 2 mm in the depth. As many as 39 cases(67%) in this series had two or more lesions in the intestinal tuberculosis. The involved segment revealed symmetrical feature(n=21, 36%). Inflammatory pseudopolypoid lesions were noted in 30 cases(52%). The ileo-cecal region was involved in 38 cases(66%). The ascending colon(n=25, 43%) was the second commonest site with or without contiguous cecal involvement. Lesions in terminal ileum, ileo-cecal valve, transverse colon, descending colon and appendix were seen in 19, 18, 18, 12 and seven cases, respectively. Among 18 cases of ileo-cecal valve lesions, there were incompetency in nine cases(16%) and wide gapping in four cases(7%). In 14 cases, tuberculous enterocolitis was diagnosed by clinical follow-up and double contrast barium enema study. 12 out of 14 cases, the findings of double contrast barium enema of tuberculous enterocolitis were normalized after anti-tuberculous medication. However, two cases showed more aggravated state than before due to inappropriate treatment. Double contrast barium enema plays an important role in the diagnosis of tuberculous enterocolitis, determines the type, site and extent of the involvement and helps in treatment guide by using sequential studies.

S.D. Rats를 이용 1, 1-Dichloro-1-fluoroethane의 아민성 흡입독성 연구

김현영,이성배,임철홍,김철우,점용현,한정희,전윤석,최수영,강대봉,이용묵 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.1

There were no specific effects for test materials on Sprague-Dawley (S.D.) rats in clinical symptoms, amounts of food intakes, weight changes, laboratory findings, and pathology after whole body l, l-Dichloro-1 -fluoroethane (used as coolant, metal cleaner and solvents) exposure(0, 1,500, 3,000, and 6,000 ppm) for 13 weeks (6 hour/day, 5 days/week). However, the loss of capillary vessels in eyeball (pupil) was observed in a female rat among 6,000 ppm group. Though there was a tendency for MCHC (Mean Corpuscular Hemoglobin Concentration) in rat to be decreased (p<0.05), it was not regarded as abnormal because the values were within normal limits. In asthma-stimulation related evaluations, there was also a tendency for inflammatory cell counts in bronchoalveolar lavages to be increased. But it had no statistical significance, and also no dependency on sex and the exposed concentration. Based on this result, the non observed effect level (NOEL) induced by 1, 1-Dichloro-l -fluoroethene inhalation was evaluated in groups with 3,000 ppm below (S .D. Rats, 13 weeks). Finally, it was concluded that the short term exposal of 1, 1-Dichloro-l-fluoroethane is not considered as a asthma stimulant by inhalation despite of some study limitations such as test animals use and short-term exposure .

국제전립선증상점수와 요류속도 및 전립선용적과의 상관성에 대한 고찰

이상철,이형래,김용태,김원 大韓泌尿器科學會 1998 Korean Journal of Urology Vol.39 No.4

《霜葉紅似二月花》의 몇 가지 문제

金榮哲 中國語文硏究會 1999 中國語文論叢 Vol.16 No.-

총체적 학습법을 통한 취업 대비 기사 자격증 취득을 위한 특별 학습 지도

육 철,노용택,김대유,이상희 永同工科大學校 1996 硏究論叢 Vol.2 No.1

본 연구는 생명공학부 유전공학전공 2, 3학년을 대상으로 진행된 특별 학습 program으로 취업 대비 목적의 국가 기술 자격증 취득을 위한 특별 학습 지도와 산업 현장 이해를 돕기 위한 현장 교육을 목적으로 추진되었다. 본 연구의 주요 추진 상황으로는 정규 강의와 별도로 소규모 grouping을 통한 특별 학습 실시, 산업체 현장 견학 및 실습, 기사 시험을 대비한 집중 학습 program실시, 하계 방학 특강, 취업에 필요한 제반 교육 등을 실시하였다. 주요 실적으로는 식품 제조 기사 1차시험에서 60%의 합격률을 보였으며 6회에 걸친 산업체 현장 견학과 1회의 산업체 실습을 통하여 현장에 대한 이해도를 높임과 동시에 관련 산업체에 영동공대의 인지도를 높여 주었다. 그리고 본 연구의 가장 중요한 성과로는 목표 설정과 동기 부여를 통하여 학생들 스스로가 학습 성취감을 느낄 수 있었던 점이라 생각된다. This research is of a special topics course(STC) prepared for the sophomore and junior students of the Faculty of Life Science and Engineering(majoring in genetic engineering). It consists of two major programs to improve opportunities for employment of students after graduation: one is a special study program for national technical qualification certification and the other is a field trip and practical experience to learn about industry firsthand. This course included special programs such as special group study in small-sized groups of 2-5 persons, tours and practice at industrial plants and laboratories, intensive study programs prepared for the national technical qualification examination, special lectures during the summer vacation and general education designed to increase opportunities for employment of the students after graduation, in addition to the normal lectures. With the fulfillment of this special topics course, 60% of students who participated in the program succeeded in the national technical qualification examination for food processing, and the students 'understanding about processing and facilities at plants was increased through a total of 7 plant tours and practice which also helped the acknowledgement of YIT to the relevant industries.

消費者 購買意思決定에 관한 考察 : 習慣型·學習型·商標忠誠型 購買決定을 중심으로

黃用哲 제주대학교 1993 논문집 Vol.37 No.1

This study decribes the opposite of complex decision maring-habit. Prior satisfaction with a brand may lead to repeat purchases and eventually to purchases based on habit. The consumer may find little need for information search and for evaluating brand alternatives. Recognizing a need will lead directly to a purchase. Therefore, habit is a way of ensuring satisfaction based on past experience search and brand eveluation. In this study, the process of habitual purchasing has been decribed. Understanding the process requires understanding the principles of consuner learning since learning theory focuses on the conditions that produce consistent behavior over time. Habit and learning lead to brand loyalty, that is, commitment to a certain brand because of prior reinforcement (satisfaction as a result of product usage). brand loyalty is the result of the consmer's involvement. Decision making was required at one time to select a brand. However, satisfaction with the brand's performance leads to the establishment of favorable attitudes and to repurchase over time. In this study, we would describe habitual purchase behavior, its characteristics and importance to the consumer. Learning theories would then be described and brand loyalty considered as an outcome of consuner learning The major contents of this study are summarized as follows. Habit, consumer learning, and brand loyalty are closely linked concepts. Habitual purchasing behavior is the result of consumer learning from reinforcement. Consumers will repeatedly buy what satisfies them best. This leads to brand loyalty. In a model representing habitual purchasing behavior, need arousal leads directly to an intention to buy, a subsequent purchase, and post purchase evaluation. Information search and brand evaluation are minimal Habit serves two important functions. It reduces risk for high involvement purchases and saves time and energy for low involvement products Concepts of learning are necessary to understand habit. The distinction is made between behavioral and cognitive approaches to learning. Behavioral learning forcuses on the stimuli that affect behavior and on behavior itself. Cognitive learning focuses on problem solving and emphasizes the consumer thought variables that influence learning within the behavioral school, the distinction is also made between classical and instrumental conditioning. Classical conditioning explains behavior based on the establishiment of a closs association between a primary and secondary stimulus. Instrumental conditioning views behavior as a function of the consumer's actions. Satisfaction leads to reinforcement and go an increase in the probability of repurchasing. The differant learning theories are also reflected in differing views of what constitutes brand loyalty. An instrumental conditioning approach suggests that consistent purchase of a brand is a reflection of brand loyalty. The cognitive school belives that behavior is on insufficient measure of loyalty. Attitudinal commitment to the brand is also required. The next study will focuse on the low involvement conditions that encourage spurious loyalty and inertia.

産業財의 마케팅 커뮤니케이션에 관한 記述的 考察

黃用哲 濟州大學校 地域社會發展硏究所 1995 社會發展硏究 Vol.11 No.-

국내 주요 상수원수와 처리수에서 HAAs 생성 특성

염철민,최유식,변석종,조순행,윤제용 대한상하수도학회 2002 상하수도학회지 Vol.16 No.2

This study was conducted to investigate the haloacetic acid (HAAs) formation characteristics in raw and treated water in Korea. The raw and treated water from the five major rivers were examined to measure the HAAs concentrations and compared those with literature values. Major findings are as follows. First, average HAAs concentration of treated water (collected from three water treatment plants) in Korea appeared to be 62.5±66.7㎍/L (n=7) and this level is higher than the average trihalomethanes (THMs) concentration (13.2±12.9㎍/L, n=6933) reported recently. Second, the average formation potential of TCAA and DCAA after three days was found as 103±74㎍/L (n=14) and 76±36㎍/L (n=14), respectively. As this result was applied to US-EPA developed model equation for TCAA and DCAA formation, dissolved organic matter (DOM) in Korea has a tendency to produce more TCAA and DCAA as compared to US. This phenomenon was especially notable in DCAA. The sum of weight percentage of TCAA and DCAA which are individual component of HAAS was composed of 80% of HAAs.

住宅賃貸借保護法에 관한 硏究

高龍喆 충남대학교 법률행정연구소 1988 논문집 Vol.16 No.-