水稻品種의 大氣汚染適應性에 關한 硏究

朴晥澈 건국대학교 1985 論文集 Vol.20 No.1

Experiment were conducted to select the rice varieties to be adapted to air pollution through the total sulfur, water soluble sulfur, fluorine, chlorophyll in leaves and ratio of destroyed leaf of 10 varieties, Nagdong, Seomjin, Dongjin, Samnam, Nampoong, Hangangchal, Seogwang, Poongsan, Taebaeg, Cheong-cheong, were investigated on the outskirts of Yeo-Chun Industrial Estate where sulfur dioxide and fluoride were emitted and on non-pollution site. The results obtained can be summarized as follows ; 1. Total sulfur, water soluble sulfur, fluorine content in leaves were higher on pollution site than on non-pollution site. 2. Five varieties, Nagdong, Dongjin, Nampoong, Seogwang, Cheong-cheong, can be selected to varieties to be adapted to air pollution, 3. Most of yield components were higher on non-pollution site than pollution site. 4. The ratio of destroyed leaf and pollutants ratio, in leaves pollution/non pollution site were not correlated with the ratio of yield, pollution site/non-pollution site. 5. Chlorophyll contents in loaves were higher on non-pollution site than on pollution site and it's ratio, pollution site/non-pollution site, was not correlated with the ratio of yield.

샌드위치 구조물의 형상최적설계

박철민,박경진,이완익 한양대학교 공학기술연구소 1992 공학기술논문집 Vol.1 No.1

General structural optimization is utilized to minimize the weight of structures while satisfying constraints imposed on stress, displacements and natural frequencies, etc.. Sandwich structures consist of inside core and outside face sheets. The selected sandwich structures are isotropic sandwich beams and isotropic sandwich plate. The face sheets are treated as membrane and assumed to carry only tensions, and the core is assumed to carry only the transverse shear. The characteristics of the varying area are considered by adding the projected component of the tension to the transverse shear. The bending theory and energy method are adopted for analyzing sandwich beams and plates, respectively. In the optimization process, the cost function is the weight of a structure, and a deflection and stress constraints are considered. Design variables are thickness and tapering coefficients which determine the shape of a structure. An existing optimization code is used for solving the formulated problems.

국내 혈액질환 환자에서 침습성 아스페르길루스증의 구제치료로서 Voriconazole의 효과와 안전성

권재철,김시현,최수미,최재기,이동건,박선희,최정현,유진홍,신완식 대한감염학회 2010 감염과 화학요법 Vol.42 No.1

Background: Invasive aspergillosis (IA) is associated with significant morbidity and mortality in patients with hematologic malignancies. We investigated the efficacy and safety of voriconazole (VCZ) when used as salvage therapy for IA in Korean adults with hematologic malignancies who had not responded to prior antifungal therapy. Materials and Methods: We retrospectively reviewed data, collected from January 2007 to October 2008, from patients with proven or probable cases of IA. All were probable IA cases, except for one proven case. All cases were refractory or intolerant to antifungal therapy prior to administration of VCZ. Efficacy and safety were assessed in patients treated with VCZ for more than 3 days and for more than one dose, respectively. A favorable response [complete (CR) or partial (PR)] was defined by significant improvement of all clinical symptoms, signs, and radiologic abnormalities. Results: Fifty patients who met the inclusion criteria were enrolled. There were 27 male and 23 female patients with mean age of 44.4 years (range, 15-65 years). Underlying diseases were acute leukemia (35 cases), chronic myelogenous leukemia (4 cases), myelodysplastic syndrome (3 cases), lymphoma (3 cases) and other hematologic diseases (5 cases). Twenty-two patients had received chemotherapy and 13 patients had undergone hematopoietic stem cell transplantation. The lung was the main infection site (94%) followed by the sinus (6%). Amphotericin B deoxycholate alone was the most frequent previous antifungal therapy. The mean duration of antifungal therapy prior to VCZ therapy was 13.9±8.8 days (2-44 days). The median duration of VCZ therapy was 19 days (interquartile range, 49 days). Sixteen patients (32.0%) showed favorable responses (CR:PR=8:8) at the end of VCZ therapy. The numbers of patients with stable disease, progression and death were, 6 (12%), 6 (12%) and 22 (44%) respectively. Most of those with unfavorable responses had relapsed underlying malignancies or refractory graft versus host diseases. Twelve patients developed drug-related adverse events but only one patient stopped VCZ treatment prematurely. Conclusions: VCZ demonstrated an acceptable level of toxicity in patients with hematologic malignancies but further studies are required to prove its efficacy as salvage therapy.

암환자에서 UFT^� 화학요법의 임상효과

임철,노승무,윤완희,장일성 충남대학교 의과대학 지역사회의학연구소 1989 충남의대잡지 Vol.16 No.2

UFT is a new anticancer compound consisting of Tegafur(FT) and uracil in molar ratio of 1:4. The concentration of 5-FU in human carcinomatous tissues after administration of this compound is maintained longer than that in non-carcinomatous tissues, while the blood level of 5-FU is comparatively low and the compound is retained for a shorter time. Administration of UFT had good effect in 5 stomach cancer patients and 1 breast cancer patient who could not use injective drugs of chemotherapy due to side effect of drugs, economic and individual state. We think that the study for the combination therapy of UFT with other anticancer drugs or radiation therapy, immunotherapy will have to be further evaluated.

Pipe 및 Hose Ass'y 생산시스템 공정최적화 설계 연구

윤철호,이수완 선문대학교·중소기업기술지원연구소 1998 선문공대 연구/기술 논문집 Vol.3 No.1

자동차 에어콘 부품인 Pipe 및 Hose 조립 공정의 생산성을 향상시키기 위하여 공정분석을 실시하였다 시간 연구법에 의해 대상 공정인 5개의 Pipe 및 Hose Ass’y공정에 대한 관측을 하였고. 그 결과 공정별 요소작업및 요소작업별 표준시간을 설정하였다 표준시간을 기초자료로 활용하여 line balancing을 실시한 결과 공정을 재배치 하게되면 공정의 균형 손실이 현저하게 줄어든다는 것을 알 수 있었다. Process analysis was conducted to improve productivity of the automobile airconditioner parts assembly lines. First, five pipe and hose assembly lines were observed by time study methodology. Using the results, element works of target assembly lines and standard time of element works were fixed. Next, line balancing methodology was utilized to evaluate current productivity of target process and layout status The results suggested remarkable line balancing effects when target process relocated

컴퓨터 비젼 방법을 이용한 3차원 물체 위치 결정에 관한 연구

장완식,김경석,이성민,주철,김재확,김대현 한국공작기계학회 1999 한국생산제조학회지 Vol.8 No.6

This study shows an alternative method for the determination of object's position, based on a computer vision method. This approach develops the vision system model to define the reciprocal relationship between the 3-D real space and 2-D image plane. The developed model involves the bilinear six-view parameters, which is estimated using the relationship between the camera space location and real coordinates of known position. Based on the estimated parameters in independent cameras, the position of unknown object is accomplished using as sequential estimation scheme that permits data of unknown points in each of the 2-D image plane of cameras. This vision control method is the robust and reliable, which overcomes the difficulties of the conventional research such as precise calibration of the vision sensor, exact kinematic modeling of the robot, and correct knowledge of the relative positions and orientation of the robot and CCD camera. Finally, the developed vision control method is tested experimentally by performing determination of object position is the space using computer vision system. These results show the presented method is precise and compatible.

사지의 급성동맥 색전증에 대한 응급동맥 색전제거술

박철완,원형섭,박정배,이근,조상훈,표창해,김상일 대한응급의학회 1996 대한응급의학회지 Vol.7 No.2

Acute arterial occlusion of the extremities is often a surgical emergency and is due mostly to arterial embolus. It has infrequently been reported in the emergency department. Cardiac embolism is most commonly the result of atrial fibrillation secondary to valvular heart disease followed by ischemic heart disease. The emergency arterial embolectomy by Fogarty balloon catheter works well when the cause of occlusion is cardiac embolus obstructing normal vessels in a patient with valvular heart disease. Recently we met some patients with acute critical ischemia of the extremities due to arterial emboli in our emergency department. On physical examination, they all had symptoms of 5"P"s(pain, pallor, pulselessness, paresthesia, paralysis). After emergency arterial embolect omy, immediate improvement was observed in all patients. They were discharged within 1 week. We report our experiences with the review of literatures.

두개강내 출혈을 동반한 불응성 특발성 혈소판감소성 자반증의 CYCLOPHOSPHAMIDE 치험 1예

서정철,양태영,최연수,박유환,김완중,허경,정원영,정춘해 朝鮮大學校 附設 醫學硏究所 1993 The Medical Journal of Chosun University Vol.18 No.1

Idiopathic thrombocytopenic purpura(ITP) is an autoimmune bleeding disorder characterized by the development of antibodies to one's own platelets, which are then destroyed by phagocytosis in the spleen and liver. Its clinical manifestations are characterized by bleeding and the most serious complication is hemorrhage into the central nervous system, but which is rarely seen below 1%. In treating IPT, the therapy of first chice is administration of adrenocorticosteroid and r-globuline. If satisfactory results are not obtained, then splenectomy is recommended. If this also proves inadequate, then administration of immunosuppressants is carried out. 16-year-old male was admitted with complaints of left hemiplegia and nasal bleeding. This case may be developed spontaneous intracerebral hemorrhage causing thrombocytopenia and was treated by steroid, r-globuline and splenectomy, but satisfactory results are not obtained. After all, the paient was successfully treated with cyclophosphamide.

중국 중학교 어문 교과서에 대하여

박철완 한국교원대학교 한국어문교육연구소 2000 한국어문교육 Vol.9 No.-

大麥에서의 Source and Sink Relationship에 關한 硏究

朴晥澈 건국대학교 1981 論文集 Vol.13 No.1

The studies were carried out to investigate source and sink relationship of barley by means of change the equilibration between source and sink by cutting the leaf, removing the panicle. The results obtained are summarized as follows; 1.The more the leaf cut, the more the panicle length, grain numbers and grain weight diminished. 2.In the case of cutting the leaf and removing the panicle the photosynthetic products transmit from the stem which removed the panicle to other stem which did not removed the panicle.