승용 디젤엔진용 가변과급기 성능에 관한 연구

진영욱,정진은,조훈기,강우,정재우 한국기술교육대학교 2006 論文集 Vol.13 No.1

A test bench which is consisted of roots blower, air flow meter, driving unit for VGT actuator, transmitters for temperature and pressure, and the rotational speed sensor was developed to evaluate the characteristics of the VGT system. Measurements using VGT of the 2.0 L diesel engine were carried out. The corrected mass flow rate and the pressure ratio for the compressor of the VGT are related directly with the rotational speed, but they are independent of the rack position of the VGT. The pressure ratio and the corrected mass flow rate of the turbine of the VGT are related directly with the rack position of the VGT, but they don't have any relation with the rotational speed. The mechanical efficiency of the VGT is higher than the conventional turbocharger in the wide range. The efficiency at the 0.03 kg/s of the mass flow rate is 4.36 times as high as that of the conventional turbocharger. These data will be used to develop the new engine equipped with the VGT system.

쇼핑센터의 전력부문 온실가스 저감에 관한 연구

정진도(Jin-Do Chung),김장우(Jang Woo Kim),임헌천(Heon Cheon Lim),임수영(Soo Young Lim) 한국열환경공학회 2009 한국열환경공학회 학술대회지 Vol.2009 No.추계

한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

의료정책의 정치경제학 : 건강보험 약가 정책을 중심으로 Korea's Drug Pricing Policy Reform

정우진 한국정책학회 2002 韓國政策學會報 Vol.11 No.4

본 연구는 의료정책이 정치·행정·경제의 상호작용에 의해서 변동된다는 것을 보이기 위해 최근 전임 보건복지부장관의 이임 연설로 부각된 건강보험 약가 정책의 정책변동과정을 정치경제학적 시각에서 규명하였다. 이 사례연구를 통하여 과거 '정부 고시가 상환제도'에서는 경제적 요인과 행정적 요인이 상호 작용하면서 정치적 균형을 이루고 있었으나, 신 정부 출범 이후 정치적 요인과 경제적(외교적)요인으로 인해 균형이 파괴되었고 관료의 포획 등 행정적 요인이 주도적 역할을 하면서 '개별 실거래가 상환제도' 및 'A-7 가격 결정제도'의 보험약가 정책변동이 초래되었다는 사실을 확인할 수 있었다. 따라서 인구 고령화, 국민소득 증가, 소비자 주권의식 강화, 삶의 질 향사 욕구 증대로 계속 확대일로에 있는 의료정책 부문은 정치, 경제, 외교, 행정이 복잡하게 상호 작용하는 영역이고 주무부처인 보건복지부 조직과 관련 직능이익단체의 성격 및 상호관련성이 독특하므로 이 부문의 정책학 연구는 보다 정교한 접근이 필요하다는 정책학적 시사점을 도출할 수 있었다. The article examines Korea drug pricing policy reform. The reform was motivated by a desire to enhance the efficiency and transparency of the dung against the backdrop of lack of public support, resistance of various interest print reform agenda-Korea ended up with a drug pricing policy in favor of interest groups, at the cost of heavier general public and fiscal burden. Our study suggests that health policy involves complex decision making, heavily affected by political, economic, and even diplomatic relationships. Without, controlling these, it is difficult to achieve the policy goal of bettering the publics welfare.

국민학교 「자연」 교과서 개발체제 분석 및 평가 연구

우종옥,정완호,권재술,최병순,정진우,허명 한국교원대학교 과학교육연구소 1992 청람과학교육연구논총 Vol.2 No.1

Elementary science textbooks are the major instructional materials which contain sceientific objectives to be acquired by students. The purpose of this study is to analyze the development system, to evaluate the inquiry activity in current elementary science testbooks, and to make suggestions for the improvement of them. The questionnaires were administered to 116 subjects that participated in development of the 5th elementary science textbooks, and 86 of the subjects responded. Based on the data gathered and analyzed in this study, the major findings are as follows. First, regarding the analysis and evaluation of elementary science textbooks. 1. The instructional objectives in elementary science textbooks are analyzed. The proportions of comprehension objectives is 38%, scientific inquiry process objectives 21%, experimental skills objectives 7%, scientific attitudes and interests objectives 4%. 2. The science concepts in elementary science textbooks of the 3rd grade required the preconcrete operational level(82%) and of the 6rd grade required the postconcrete operational level (73%) by J. Piaget. 3. The inquiry activities in elementary science textbooks are emphasizing gathering and organizing results and evaluation, and hypothesizing and designing an experiment. Inquiry index of the elementary science textbooks is 76. This is significantly higher than 35∼50 of America and U.K. 4. The number of questions per class hour is mostly three, and most of them require the students to explain phenomena in nature or in experiment Second, regarding the development system of elementary science textbooks. 1. The budget for and the period of the development of elementary science textbook should be expanded. 2. For the improvement of elementary science textbooks, more abundant resources and time should be used for the basic study and the field trial of textbooks. 3. The elementary science textbook must include the affective objectives as well as the scientific knowledges and scientific inquiry skills. 4. It is not desirable to assign equal number of pages to the content of physics, chemistry, biology, and earth science. 5. Closer cooperation system is needed among the ministry of education, development research center and the field trial schools.

천안백석매립장을 중심으로 한 메탄가스 발생량에 관한 연구

정진도,김장우,정인권,배찬열 한국환경과학회 2004 한국환경과학회지 Vol.13 No.7

Most of methane gas result from waste matter in landfill, therefore the persons concerned take an increasing interest in management of gases in landfill. Infrared Gas Analyzer was used to measure components of gases, CH₄,CO₂, O₂, through gas exhausted pipe. To measure amount of the gas flow meter(Portable Hot-Line Current Meter) was used and it was set at right angles with direction of the flow. In this research the total amount of methane gas produced in Beck-Suk Landfill was calculated through FOD method suggested by IPCC. This research found that in Chon-An Beck-Suk Landfill anaerobic resolution was made actively and the amount of methane gas produced there was 54.14%, which is higher than common figure, 50%, in other researches. The components of reclaimed waste matter, especially, organic waste matter can have a great effect of the amount of the greenhouse gases produced in landfill. We can expect that the amount of greenhouse gas will decrease from 2005, when it will be prohibited from carrying kitchen refuse and sludge into landfill.

항진균제 알릴아민류의 합성과 생물학적 평가

정병호,조원제,천승훈,박면지,유진철,천문우 朝鮮大學校 1998 藥學硏究誌 Vol.19 No.2

For the development of antifungal agents. modification of naftifine which exhibits significant antimycotic activity was performed by replacing the naphthalene ring of it to hetero cyclic rings such as morpholine. benzothiazole. piperidine and pyridine derivatives. The synthesized compounds were tested in vitro antifungal activity against five different fungi with naftifine as a comparative antimycotic molecule. From the biological evaluation two compounds. (E)-N-(3-phenyl-2-propenyl)-N-(4-piperidinylmethyl)amine(3d) and (E)-N-(3-phenyl-2-propenyl)-N-(3-pyndylmethyl)amine(3D) showed relatively noticeable activity(MIC=50㎍/㎖). On the other hand. the other compounds had no activity.

구속된 비행 청소년들의 특성 및 석방 후 6개월간 재범여부와 관련된 변인

정선주,김원식,고승희,구영진,김홍창,서동혁 대한소아ㆍ청소년정신의학회 1999 소아청소년정신의학 Vol.10 No.2

體格과 體質이 瞬發力과 敏捷性에 끼치는 영향 硏究

鄭眞宇 대구효성가톨릭대학교 1982 연구논문집 Vol.24 No.3

The purpose of the study: The developmental curve of power and agility of boy and girl. -students from 12 years old to 15 is first made out and the correlation betweenheight and power, height and agility, weight and Power, weight and agility,agility and power is produced. And then the devision of teaching period for the advancement of their physicalstrangth is the purpose of this study. Methology : The power and Agility of 250 students from 12 years old to 15 measured. The power is measured by sargent jump test and the Agility by shuttle Runtest. The correlation is produced by Pearson's fo-rmalar (rxy=εxy/Nδxδy) according to these to test. The results of the study: 1. Reached the following facts as a result of study. 1) The power of the boy-students 12 years old to 15 was developed in almoststraight curve. The power of students between 14 years old and t5 was remarkably developed. The Power of girl students from 12 years old to 14 was developed in almoststraight curve aud was backward at 15 years old. 2) The Agility of toy-students from 12 years old 15 was developed almostStraight. That of girl-students between 12 years old and 13 was developed higher thanusual. The curve was falling from I5 years old. 3) The correlation of height and power of boy-students is high. But the correlation of girl studenss from 12 years old one's to 14 year old isusual. There is no correlation ofter the age of 15 yeari old girls by increlation theirage. 4) The correlation of weight and power of boy-students is high, when thegirl-students is 12 years old and 14 years, the correlation is usual. 5) There is the correlation between height and Agility of boy-students wenthe girl students is 13 years old is low. 6) The correlation between weight and agility of boy-students is usual but thecorrelation of girl students from 13 years old to 14 years old is low. There is the correlation between Agility and power of boy and girl students.