망막전위도의 전력 산출

원철호,조진호,김상하,임정훈 경북대학교 의학연구소 1999 경북대학교병원의학연구소논문집 Vol.3 No.1

주파수영역에서 망막전위도의 총전력을 계산하고, 시간영역에서 망막전위도의 면적을계산할수 있는 프로그램을 개발함으로써 전기생리학적 진단의 효능을 향상시키는데 목적을 두었다. 총전력은 망막전위도 신호를 Fourier 변환을 이용하여 주파수 영역의 신호로 바꾼 다음 스펙트럼의 제곱을 적분함으로써 구하였다. 우세전력은 우세주파수의 전력으로 이부분의 전압을 제곱후 적분하여 얻은 값이다. 원하는 부분은 수동입력하여 구간주파수의 제곱적분을 할 수 있게 하였다. 이 소프트웨어는 시간 영역에서 진동양소파의 진폭의 합 및 면적도 구할 수 있는 기능을 가졌으며, 사용자에게 편리하도록 그래픽 환경 하에서 마우스와 팝업 메뉴에 의하여 각 기능들이 작동되며, UTAS-E2000 시스템과도 상호 호환성을 갖고 있다(한안지 38:817∼823, 1997). The Calculation of the Electroretinographic Power Chul Ho Won*, Jin Ho Cho, Ph.D.**, Sang Ha Kim, M. D., Jung Hoon Lim, M. D. To promote the electrophysiologic diagnostic efficiency, the program for calculation of the total power in the frequency domain and of the area in the time domain of the electroretinogram was designed. The total power is calculated by integration of the squared power spectrum obtained by Fourier transform (Parseval theorem) in the time domain. The dominant power is the power of the dominant frequency in power spectrum and is calculated by integration of the squared peak area spectrum. The sectional integration of the square power spectrum can be established by manual input. The implemented software also has the functions that calculate the summed amplitude and area of the oscillatory potentials in the time domain. And it performs each functions by selection of pop-up menu with mouse to use conveniently under graphic interface, compatible with UTAS-E2000 system (J Korean Ophthalmol Soc 38:817∼823, 1997).

한우에 있어 황토 첨가급여가 면역기능에 미치는 영향

조원모,기광석,정하연,강수원,김준식,오성종,김용국 한국국제농업개발학회 2003 韓國國際農業開發學會誌 Vol.15 No.2

본 연구는 한우 육성우에 대한 황토 첨가급여가 항병성에 미치는 효과를 구명하고자 혈액성상변화를 규명한바 아래와 같은 결과를 얻었다. 대조구 및 처리구에서 전체적인 혈액성상의 변화는 없었으나 백혈구수치가 대조구 및 처리구에서 각각 15.35K/㎕ 및 13.37K/㎕이였으며, 적혈구에 있어서도 정상수치인 5~10M/㎕보다 대조구 10.03M/㎕, 처리구 11.35M/㎕로 모두 높은 수치를 보였다. 황토첨가에 따른 혈액성상의 변화는 처리간에 유의한 차이는 보이지 않았다. The study was conducted to investigate the effect of dietary supplements of reddish clay on the immunity of growing Hanwoo steers. A total of 8 calves were divided into 2 feeding groups, control(basal diet) and treatment(basal diet plus ad libitu reddish clay) for Hanwoo steers. This study was carried out for 5 months using 8 calves. The results obtained by the present study are summarized as follows : The proportion of WBC, NE as well as LY(15.35, 6.85, 6.86K/??) was higher in the control group than in the Reddish clay-supplemented group. But no statistical differences were found in blood substances among treatment calves.

앵커볼트 인발거동의 파괴역학적 해석

조영혁,김인순,변근주,송하원 연세대학교 산업기술연구소 1996 논문집 Vol.28 No.2

Anchor bolts embedded in concrete, used to transfer local loads into structures, are important structural details. The accurate predictions of the ultimate tensile capacity of the anchor bolts governed by the concrete cone failure are very important. The objectives of this study are to predict the fracture behavior of the concrete and to obtain the tensile capacity numerically for the pull-out of anchor bolts embedded in concrete. For this purpose, the methods to evaluate the ultimate tensile capacity of the anchor bolts embedded in concrete are summarized and the fracture behavior and cracking model of concrete are studied. From the concrete fracture analysis based on finite element modeling of the pull-out test, the fracture behavior of concrete including the ultimate tensile capacity of the anchor bolt is obtained. From the comparison between the numerical results and the experimental data, it is shown that the smeared modeling for the numerical predictions of the progressive fracture of concrete due to the pull-out of anchor bolts can be improved by using the line of interface elements along the crack path.

황토 급여가 거세한우의 발육에 미치는 영향

조원모,기광석,정하연,강수원,김준식,백봉현,김용국 한국국제농업개발학회 2003 韓國國際農業開發學會誌 Vol.15 No.1

본 연구는 거세한우 육성우에 대한 황토 첨가급여가 발육에 미치는 효과를 구명하고자 발육능력, 사료섭취량을 규명한 바 아래와 같은 결과를 얻었다. 전 시험기간 동안의 평균 일당증체량은 대조구와 황토급여구가 각각 0.91㎏과 0.87㎏/day로 대조구가 높은 것으로 나타났지만 유의성은 인정되지 않았다. 사료섭취량은 대조구와 황토급여구 모두 평균 일일 두당 농후사료 섭취량이 2.42㎏이었으나, 건초섭취량에 있어서는 각각 3.02와 3.14㎏으로 황토급여구가 다소 높은 경향으로 나타났다. The study was conducted to investigate the effect of dietary supplements of reddish clay on the growth performance in growing Hanwoo steers. A total of 8 calves was allocated into 2 feeding groups, control(basal diet) and treatment(basal diet plus ad libitim Reddish clay) for Hanwoo steers. This study was carried out for 5 months with a total of 8 calves. The results obtained in the present studies are summarized as follows : Average daily gains throughout the experimental period of 4 months to 9 months of age were 0.91 and 0.87㎏ for control group and reddish clay-supplemented group, respectively, however, no statistical significances were found. Average daily intake of concentrates was 2.42㎏ for each group, while that of hay tended to be higher in reddish clay-supplemented group(3.14㎏) than in control group(3.02㎏).

관동맥 우회로 이식술후 우회 혈관의 개존 여부 평가에 있어 전자선 단층 촬영을 이용한 3차원 혈관조영술의 유용성

하종원,조승연,심원흠,정남식,이향미,최규옥,장양수,유경종,강면식 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.5

변이형 협심증 환자의 진단에 있어 Iodine-123Metaiodobenzylguanidine 심근 스캔의 유용성

하종원,이종두,장양수,정남식,권준,임세중,이영준,심원흠,조승연,김성순 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.2

비점막(鼻粘膜) 섬유세포에서의 RANTES와 MCP의 발현 조절

하용찬,조정재,유영처,양원용 Official Journal of the Korean society for immunol 2003 Immune Network Vol.3 No.1

공공부조 수급자의 생활실태와 소득활동에 관한 연구 : 광주광역시 서구 영구임대주택 거주 국민기초 생활보장 수급자를 중심으로

조원탁,이형하,윤종성 한국사회복지정책학회 2004 사회복지정책 Vol.19 No.-

본 연구에서는 소득활동에 참여하는 국민기초생활보장제도 수급자의 일과 생활에서 나타나는 급여수 행태와 욕구를 확인하고 소득획득금액이라는 변수를 활용하여 욕구별 차이를 살펴보았다. 먼저 일하는 수급자의 일반적 특성을 사회복지전담공무원이 활용하는 보건복지종합행정시스템의 자료를 활용하여 기초통계 분석을 실시하였으며 다음으로 가족특성과 근로형태를 고려하여 선정된 44사례에 대해 귀납적 방법으로 욕구 분석을 하였다. 또한 욕구별 소득획득금액의 차이를 복지급여액과 기타 지원내용을 현금화한 자료와 빈곤을 구성하는 지수를 통해 분석하였다. 분석결과를 요약하면 첫째, 일하는 수급자의 특성에서 여성가구주는 자녀교육과 양육에 대한 부담이 크고 남성가구주는 질병과 장애가 있는 가구원 보호에 대한 부담이 큰 것으로 나타났다. 20대에서는 양육과 보호에 대한 욕구, 30~40대에서는 교육비지원에 대한 욕구, 50대에서는 일자리 유지와 질병에 대한 욕구가 강한 것으로 나타났다. 둘째, 일하는 수급자의 생활에서 파악된 급여 수급형태는 일반 장기관에 신고되지 않는 소득활동에 참여하는 형식으로 나타났다. 주된 욕구문제는 질병문제 교육비 부담, 가사부담, 아동보육, 불안정한 소득기반, 빈곤생활의 지속, 부채 등으로 나타났다. 셋째, 복지급여액과 기타 지원내용을 현금화한 소득획득금액을 산출을 통한 분석 결과 일하는 수급자들은 국가가 정한 최저생계비 대비 130%의 수입효과를 얻는 것으로 나타났다. 따라서 향후 차상위계층의 소득획득금액의 분석을 통해 비교연구를 하는 것이 필요하다. This study intends to examine the behaviours within daily lives of recipients of national basic livelihood protection, who participate in economic activities, and get the bottom of the efficiency of their needs. First, I conducted fundamental statistics analysis on general data of working recipients by using materials from health and welfare general administration system, which is used by governmental employees in social welfare department. Then I selected 44 cases considering their family career and type of business they are engaged in, and conducted analysis on their needs inductively. In addition, I conducted this analysis by converting welfare allowance and other support into money to determine the result of behaviours for their needs. The result can be summarized as follows. First, it is found out that female householders worry about the educational expenditure of their children and the cost of bringing up their children the most and that male householders family members who suffer from illnesses or disorders the most. It is shown that the recipients in their 20s are interested in the bringing up and protection of their children, in their 30s to 40s meeting the educational expenditure of their children, and in their 50s keeping being employed and maintaining their health. Second, they avoid getting usual jobs, prefer self-support jobs provided by the government to usual ones and work close to their home, and mostly participate in economic activities, which are not registered in social security institutes, as I examined their strategies by conducting intensive interview on their life and job. They mostly worry about their health, educational expenditure, household duties, bringing up their children, unstable income, continuation of poverty and debt. Third, they earn 130% of minimum cost of living, which is determined by the government, according to the analysis on their needs and efficiency. Especially, the efficiency was found high in cases where recipients seem to worry about education, protection of their children and debt. This study has significance as it intends to examine the recipients who live in permanent rental apartments and evaluate their needs and efficiency of the allowance in a situation where their residential space and health care are insured. Second, this study proved the adequacy of implementing separate allowance system in areas such as residence, health care and education, by clarifying strategies by needs and conducting analysis on efficiency.

정신재활 치료가 정신분열병 환자의 재발율, 입원횟수, 입원일수 그리고 치료 경비에 미치는 효과 : 2년 추적조사 연구

조진석,공지현,김진원,심경순,하준선,김철권,강동호,장정희,변원탄 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5

목 적 : 사회기술훈련, 환자교육, 가족교육, 집단치료, 예술치료, 작업치료와 같은 포괄적인 정신재활 치료를 약물치료와 병행할 경우 약물치료만 시행할 때에 비해 정신분열병 환자의 재발율, 입원횟수, 입원일수, 직접 치료경비 등에 어떤 효과가 있는 지를 알아보기 위함이다. 연구방법 : 1993년 9월부터 1995년 2월까지 양산 신경정신병원의 폐쇄병동에서 퇴원한 20∼35세 사이의 정신분열병 환자 173명을 대상으로 46명에게는 6개월동안 정신재활 치료를 시행하였고 127명에게는 통상적인 외래치료만 시행한 후 연구시작 시점을 포함하여 2년동안 양군에 속한 환자들을 대상으로 재발율, 입원횟수, 입원일수, 직접 치료경비 등을 1년 단위로 추적 조사하였으며, 연구시작 시점을 기준으로 전과 후의 매년 평균 입원횟수, 입원일수, 직접 치료경비도 서로 비교하였다. 결 과 : 정신재활 치료를 약물치료와 병행할 경우 약물치료만 시행할 때에 비해 재발율, 입원횟수, 입원일수, 직접 치료비용이 현저히 감소되었다. 그리고 정신재활 치료를 받은 군에서는 치료 전에 비해 치료 후에 재발율, 입원횟수, 입원일수, 직접 치료비용이 유의하게 감소하였지만 통상적인 외래치료만 받은 군에서는 치료 전과 후간에 유의한 변화를 보이지 않았다. 결 론 : 정신분열병 환자들에게 정신재활 치료를 약물치료와 병행할 경우 약물치료만 시행할 때에 비해 환자의 임상적 경과를 호전시킬 뿐 아니라 가족의 경제적 부담도 줄일 수 있다. Objective : We evaluated the clinical efficacy of a comprehensive psychiatric rehabilitation of schizophrenia, including family psychoeducation, patient education, social skills training, group psychotherapy, art therapy, and occupational therapy. Method : From September 1993 to February 1995, 173 chronic schizophrenics who met DSM-IV criteria and were discharged from a locked ward were assigned into the psychiatric rehabilitation service group(psychiatric rehabilitation group, n=46) or the customary out-patient service group(out-patient group, n=127) prospectively, but not randomly. Assignment was based on preferences of patients and their relatives, Each subject included in the psychiatric rehabilitation group received twice weekly patient education, social skills training, family psychoeducation, group psychotherapy, art therapy, occupational therapy and maintenance chemotherapy during a 6-month period. Those in the out-patient group received individual supportive psychotherapy and maintenance chemotherapy according to their clinical needs for 10-20 minutes once per week. After entry into the study, all subjects were assessed for the number of readmission, days of hospitalization, and the direct treatment costs through the first and second year of follow-ups. These outcome variables were also compared pre-and post-2 years at the time point of entry into the study. Aftercare chemotherapy on a weekly to monthly basis continued for the remainder of the two year follow-up period. Results : With regard to the mean number of hospital admissions per year, the mean days of hospitalization per year, and the direct treatment costs per year, the psychiatric rehabilitation group had significantly decreased all clinical outcomes 2 years after compared with before receiving psychiatric rehabilitation. But there were no significant differences in the all clinical outcomes between before and after study intake in the out-patient group. For the number of relapse regardless of drug compliance, 4 patients(9%) during first year and 14 patients(30%) during second year were relapsed in the 46 subjects of the psychiatric rehabilitation group. In contrast, 75 patients(59%) during first year and 90 patients (71%) during second year relapsed in the out-patient group. When considering the effect of drug noncompliance to relapse, 4(9%) and 14 patients(30%) were relapsed while on medication respectively during the first and second year in the 46 of the psychiatric rehabilitation group, vs. 27(34%) of 79 patients on medication during the first year and 31(46%) of 68 patients on medication during the second year were relapsed in the out-patient group. Conclusions : These results indicate that the comprehensive psychiatric rehabilitation can be useful therapeutic intervention both to improve the clinical outcomes of schizophrenic patients and to reduce the economical burden of their relatives.

고속전철 추진 시스템의 미끄럼 방지 제어기법에 관한 연구

황돈하,김동희,노채균,심광열,조규판,정원영 영남대학교 공업기술연구소 1999 工業技術硏究所論文集 Vol.27 No.2

Induction motor drive with PWM inverter control has been developed for Korean High Speed Railways. To improve traction performance, the anti-slip control(ASC) to recover adhesion must be considered. This paper describes a novel hybrid anti-slip control method for the induction motor drive. By introducing the vector control for drive system, quick response of the motor torque can be achieved when wheels are going to slip. A hybrid control scheme by mixing two conventional control methods (slip velocity feedback control and slip detection pattern control) for wheel slip and re-adhesion is proposed. This control method is simulated by motor drive, train load, and friction-creep models. The train running simulation results based on induction motor vector control with PWM inverter show that good re-adhesion characteristics are obtained.