살모사 교상 후에 발생한 뇌간 경색

권석범,이병철,배재천,황성희,김대훈 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

비소세포 폐암종에서 Cyclin D1, p21 및 p53단백의 발현과 예후와의 관계

양석우,조상호,양우익,정우희,안철민,이두연 대한병리학회 1999 Journal of Pathology and Translational Medicine Vol.33 No.12

MONITOR의 전면에서 방출되는 전자파를 줄이기 위한 BLOCK 기술의 개발

박석웅,김상수,오재석,김병철 金烏工科大學校 1997 論文集 Vol.18 No.-

In this paper, blocking technique for reducing electromagnetic waves emitted from the front of the monitor is studied. Through amplification circuit constructed with OP AMP and Transistor, the input signal from the side of CRT was inverted and amplified. This signal is emitted to the front of CRT through an Antenna constructed with Wire to reduce electromagnetic waves coming out from the front of the CRT.

지반개량앵커(SI 앵커)의 개발과 현장에의 적용

홍석우,주인곤,임종철 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.50 No.-

그리운드 앵커의 시공이 나날이 증가되고 있는 현실에서, 연약한 지반에도 시공 가능한 지반개량앵커(SI 앵커)의 정확한 극한인발력의 산정과 인발저항기구를 연구하는 일은 매우 중요한 일이다. SI 앵커는 지반개량앵커를 의미한다. 앵커를 지지하는 지반을 J.S.P 로 개량한 짓이다. SI 앵커는 인발저항기구를 알기 위해 SI 앵커체의 표면과 앵커체 두부의 응력을 측정하는 것이 필요하다. 본 연구에서는 현장실험과 실내모형실험을 통해 SI 앵커체 표면에서의 응력을 측정했고, 산정식에 의한 계산 결과치와 비교했다. 본 연구의 결론은 다음과 같다. (1) SI 앵커의 거동은 일반 마찰방식 앵커의 거동과는 다르게 나타나는데, 이는 SI 앵커의 저항력은 지압저항력과 마찰 저항력의 합에 의해 결정되기 때문이다. (2) SI 앵커의 설계 시는 진행성 파괴의 영향을 고려하여야 한다. (3) SI 앵커의 지압저항에 의해 앵커두부의 변위는 감소되고, 앵커의 극한인발력은 일반마찰방식앵커에 비해 증가한다. (4) SI 앵커는 일반앵커가 시공되기 어려운 연약지반 내에 정착할 때 특히 효과적이다. Day after day, use of ground anchor is increasing in execution, It is significant to calculate the ultimate pullout force exactly and to research the mechanism of pullout resistance of SI anchor. SI anchor means the Soil Improvement anchor. Ground for anchoring is improved by J. S. P. In order to analyze the mechanism of pullout resistance of SI anchor, it is necessary to measure stresses on the SI anchor surface and SI anchor head. In this study, we measured stresses on the SI anchor surface by field tests and laboratory model tests and compared with calculated results. The conclusions of this study are as follows: (1) The behavior of SI anchor is different from that of friction anchor, because pullout resistance of SI anchor is made by bearing and frictional force. (2) In the design of SI anchor, progressive failure should be considered. (3) By the bearing resistance of SI anchor. the displacement of anchor head is decreased and the ultimate pullout force of anchor is increased comparing with general friction anchor. (4) SI anchor can be used in soft ground effectively.

Lactic Acid의 심근 수축성에 미치는 영향

김성철,장석종 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.2

In order to evaluate the effects of lactice acid on the cardiac muscle contractility, turtle Ringer solution contained various concentration of lactic acid or HCl were perfused into isolated turtle ventricle by Langendrof preparation and contractility parameters, such as tension, maximal contraction dT/dt, and maximal relaxation dT/dt were measured by Physiograph. Lactic acid depressed remarkably the contractility parameters of the heart and the magnitude of depression was about 23-28 percent with decrease in one unit of pH at the pH range between 6.80 and 8.20. Furthermore the degree of inhibition of contractility parameters between lactic acid and HCl were not significant differance statistically. Therefore it was suggested that inhibitory effect of cardiac muscle contractility by lactic acid may depend on hydrogen ion concentration, ie. pH.

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.

정신분열병 환자의 가족부담 척도 개발에 대한 예비연구

김철권,조진석,서지민,김용관,김호찬,김현수,김상수,제영묘 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.3

연구목적 : 정신분열병 환자의 가족이 느끼는 부담을 측정하기 위한 가족부담 척도를 개발하기 위함이다. 방 법 : 200명의 정신분열병 환자 가족과의 비구조적 면담과 외국 부담척도 고찰을 통하여 94문항을 수집하였고 그 다음에 전문가들과 가족들이 문항 및 영역을 분류하고 통합하여 최종적으로 36문항을 선정하였다. 그리고 정신분열병 환자의 가족 135명, 불안장애 환자의 가족 22명, 기분부전장애 및 신체화 장애 환자의 가족 26명, 치매 환자의 가족 49명을 대상으로 신뢰도와 타당도를 검증하였다. 결 과 : 자료분석 결과 검사-재검사 신뢰도, 내적 일치도, 감별타당도 모두 높게 나타났으며, 요인분석을 통해 다섯 가지 구성요인이 추출되었다. 결 론 : 본 가족부담 척도는 정신분열병을 포함한 만성 정신질환을 앓고 있는 환자의 호전과 가족의 부담을 덜어주기 위한 다양한 프로그램의 효과를 검증하는데 유용하게 사용되어질 수 있을 것이다. Objectives : This preliminary study was carried out to develop the Family Burden Scale(FBS) of the schizophrenics. Methods : Ninety-four items were collected by interviewing in a free unstructured format with one relative of each 200 schizophrenic patients and reviewing foreign FBS's. Several professionals and relatives were asked to group and integrate them into several categories. Finally 36 burden items were chosen to constitute a FBS. The FBS was administered to the relatives of 135 schizophrenic, 22 anxiety disorder, 26 dysthymic disorder and somatization disorder, and 49 dementia patients for examining the reliability and validity. Results : The FBS showed high test-retest reliability, internal consistency, and discriminant validity. The results of the factor analysis revealed five-factor solution. Conclusion : The FBS can be used to evaluate the effectiveness of various programs intended not only to reduce decompensation among schizophrenics, but also to alleviate family burden.

柔道 밧다리 후리기의 kinematic 分析

趙衍澈,魯奭奎 啓明大學校 生活科學硏究所 1987 科學論集 Vol.13 No.-

The purpose of the study was to analyze the Kinematics component of O-soto-gari in Judo. The subjects were 4 male college judo caliber players. They were filmed at 100f/sec. The analyzed Variables were angular velocity and angular accee ation of leg and angular change during O-soto-gari. The results were summarized as follow; 1. During Kuzushi-Tsukuri phase the stride and volocities were 1.093m and 1.497m/sec in each. 2. And during in the Tsukuri-Kake phase the maximum angular velocities in 0.2 seconds were 400 degree/sec in low leg and 350 degree/sec in upper leg. The maximum angular acceleration was -4000 degree/sec²in low leg and 4000 degree/sec²in upper leg. 3. During Kake phase maximum angular velocities were 680 degree/sec in low leg and 400 degree/sec in upper leg. And maximum angular acceleration was 9500 degree/sec² in low leg and 3000 degree/sec²in upper leg. 4. In order to analyze the Kinematic and Kinetic components of O-soto-gari accuretely, the study should be performed with 3-D and force plat-form system.

가막만 패류양식장의 수질 및 저질특성

최철웅,문성용,윤호섭,라성주,한종석,최상덕,이우범 國立 麗水大學校 環境問題硏究所 2002 環境硏究論文集 Vol.5 No.-

This study was performed to characterize the seasonal fluctuation of water quality and sediment environment from April, 2001 to November, 2001 in Gamak bay. Which was a productive area, but recently its fisheries conditional have been deteriorated because of increasing waste-water from municipal area, industry and autochthonous pollution by farm industry. In the survey of seawater quality, DO and COD concentrations were lowest in bottom layer at summer, but DIN and DIP contents were higher than those in surface layer. Eutrophication indices mean that eutrophication area move from south to north entrance via northern-west inner area with seasonal change from summer to autumn. In the survey of sediment environment, ignition loss(IL), chemical oxygen demand(COD), DIN and Dip were in the range of 3.8~15.7%, 10.3~60.6mg/g-dry, 5.053~1.810mg/ℓ and 0.065~0.324mg/ℓ , respectively. COD in sediment were highest at winter and spring. And, they were higher than sediment standard in the south inner area, which mean heavily polluted conditions with organic constituents.

연약점토지반상 성토사면의 안정해석에 관한 연구

임종철,홍석우,강연익 釜山大學校生産技術硏究所 1998 生産技術硏究所論文集 Vol.55 No.-

최근 산업발달에 의한 교통량의 증가로 도로건설이 활발하게 진행되고 있는 실정이며, 도로건설은 지반조건이 불리한 연약지반상에서의 건설도 필수적이 되었다. 그러나, 연약지반에서의 성토공사시 시공상황을 적절히 고려하여 성토사면의 안정문제를 판단할 수 있는 전반적인 유지관리체계가 확립되어 있지않기 때문에 역약지반의 거동을 해석하기 위한 모델 및 시공시의 안정관리를 위한 연구가 활발히 진행되고 있다. 본 연구에서는, 설계 및 시공시 공정계획에 따른 성토사면의 안정성을 판단할 수 있도록 하기 위하여 정규압밀상태인 연약점토지반상의 점증성토와 방치기간을 고려할 수 있고, 압밀경과시간과 점토지반의 깊이에 따른 강도증가율을 고려할 수 있는 안정해석 프로그램(RSI-SLOPE)을 개발하였다. 이 프로그램을 이용하여 임의의 해석단면에 대하여 성토설계를 실시하였고 성토설계시 압밀계수(c)와 배수거리(H)의 영향을 비교·분석하였다. Recently, roads are being constructed actively due to traffic increase by industrial development. So, it is essential for the road to be constructed on the soft ground. But, it is not established to calculate stability of embankment with respect to the construction condition on soft ground. In this study, stability analysis program(RSI-SLOPE) is developed. By using this program, it is possible to consider the rate of strength increase according to consolidation period and the depth of clay ground as well as resting duration and gradually increasing embankment on the soft clay in normally consolidated state in order to be able to judge stability of embankment with time schedule in design or construction. In addition, this study contains analysis and comparison about influence of coefficient of consolidation(c) and drainage distance(H) in embankment design.