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權五憲,李尙和 忠南大學校 産業技術硏究所 1986 산업기술연구논문집 Vol.1 No.2
The main purpose of the study is to develop a computer program in the personal computer which calculates numerically the inflow from the rainfall and displays the inflow hydrograph on a CRT. The computer programs, which were developed for the inflow forecasting of the short-range, employed the storage function method. The program which computes the inflow from the rainfall would be applicable effectively both to planning the daily/weekly power generation and to operating the dam for the flood control. The inflow calculated by the computer program gave a good agreement with the actual inflow for the Choon Chun and the Cheong Pyung dam.
Fibrin Scalant 를 사용한 골자가이식에서 혈관신생에 관한 실험적 연구
권성택,김병건,김진환 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.3
The effect of fibrin to wound healing has been studied and well documented : homostatic and adhesive effect and stimulatory effect on proliferation of fibroblast, formation of granulation tissue and neovascularization has been well known. In the process of bone healing, action of fibrin has been reported to stimulate the formation of granulation tissue, new vessels and new bone, but there have been many reports contrary to the effects of fibrin. Authors used New Zealand white rabbit as an experimental animal. Bone grafts were harvested from right and left parietal bone and onlay grafts were performed to both sides of frontal bone. Fibrin sealant was applied to experimental group and was not applied on the control group. Both groups were sacrificed after 1, 2, 3, 4, and 8 weeks respectively and results were examined and compared after H&E stain and Masson's trichrome stain by light microscope. The group using fibrin sealant showed new bone formation on 1st week and new vessel formation on 2nd week, and vessels were numerous and had thick walls. And there were dense bony connections between donor bone and recipient bone. In calvarial bone graft which is most commonly used in plastic and reconstructive surgery, especially in infected and extensively injured wound which might compromise blood supply, we believe that bone graft using fibrin sealant can stimulate vascularization and new bone formation and therefore enhance the survival of bone graft.
Polyphenol류의 항산화성 및 항돌연변이성에 관한 연구
권태영,김상엽 전주대학교 자연과학종합연구소 1997 전주대학교 자연과학연구소 학술논문집 Vol.10 No.3
Total and free phenolics contents, nitrite scavenging activity of fruits and vegetables(30 kinds) were investgated, Total content were 100-400mg% level, but the nitrite scavenging acitivity was not correlated with phenolics content. Also, 26 synthetic phenolics were investigated to relationship of chemical structure between antioxidantal activity by nitrite scavenging method, and antimutagenic capacity. Increasing of hydroxyl group number was enhanced activity, and meta substitution had highest activity than ortho- or para substituents.
權尙俊,金暻浩 淸州大學校 1982 論文集 Vol.15 No.2
Korea has made a remarkable growth of economy with the social and cultural change in the last twenty odd years, developing overally human settlements. But negative factors lay behind the disappearance of the growth, regarded in relation to regional development. Those have occurred the disparities of regional growth and income between one region and others, the negligence of regional marginal resources, the development disregarded environmental pollution and the development policies for efficiency rather than creation for comfortable settlements. That is not excepting Cheong-ju region. The object of this study shall be to improve the inhabitant living environment not only laying stress on the traditional culture, but also inducing the external and internal development for Cheongju region and to promote the development for the periphery spreaded the extending effects into integrating human settlements. This study sets limits to theoretical approach and planning for the regional development in contents, the affective region centering around the urban planning area for Cheong ju city in space and the year's 2000 in time. If the regional development planning are continuously established in the existing same way as the first program for land development (1972~1981), there must be occurred the disparities among the regions, the inefficiency and accountability of allocation of resources, the negligence of traditions and the passive participation in the regional development planning. Therefore, the planning must require further examination for human settlements, environmental pollution and economical activities and give serious consideration of regional planning to settlement planning and conservation for environment. The background of Cheongju region shows briefly that the region has a population of about one million and Cheong-ju city has about 253 thousands in 1980. The population of the region in 2000 is expected to be about one and half million and Cheongju city is expected to have 550 thousands within and beyond the limits of 10% or so. The regional growth potentialities about the social and cultural, industrial lecational and centralizational sides are greater than the other region. The traditions worth conserving are the system of open spaces at the city, cultural assets, inheritant temper and the educational and cultural function of the city. Firstly, the regional development planning must establish the policies that make Cheongju city a growth pole of the region; inducing the basic industries concerned with the educational and cultural city function, expanding the utilities, especially roads, between the city and the peripheries, improving on the level of services from the city and creating comfortable cityscape by way of urban design. Secondly, the regional development planning must be based on the human settlement planning; diversifing the allocation of inhabitant population with diverse density, allocating the basic civil facilities, especially schools and cultural ones, allocating resources on a spatial as well as sectoral basis, with a view to improving efficiency and accountability and completing the self-sufficiency within the region and inducing positive investment for the development with the citizen participation. Thirdly, the planning must have harmonization between conservation of tradition and innovative development. In order to maximize the efficiency of the planning, the region area can be divided into three zones; the core of the city, inner ring area and periphery. The conservation is prior to all other strategies in the core of the city, the city central function allocated and the accessibility rasied up. There are the policies to harmonize the conservation and innovation, to offer the public services to the inhabitants and maintain open spaces by way of a sectoral system in the inner ring area. The development policies in the periphery are to maintain developing space as well as reserving area. This study can have brought to the conclusion that Cheongju region hays to develop by way of making Cheongju city a growth pole of the region endowed with educational and cultural functions as well as one cored system of land use.
權尙俊 淸州大學校 1984 論文集 Vol.17 No.2
This study aims at looking into a method having converted urban development in Korea from the concentration policies for the central area into the decentralization for the local for the past 20 years. According to the study the conclusion can be come to the follows. A. The concept of the local urban development can be understood that is a process of the accomplishment of the local urban development policies for regionalism and a means of the ones for regionalization. B. The problems from the local urban development policies are pro-centralized sociality from the citizen consciousness, defects in our legal system for the serious consideration of locality, a top down approached system for the public opinion, negative engagement of local officers, quantitative and qualitative basic needs for the development and insignificant feed back system for the assessment and analysis. C. The directions for the conversion of the development policies are the harmonization of the preceeding conditions for the modification of the national structure for human settlements, the excavation of the practical means for the intensification of the urban function, the reform for the urban structure and function according to the external factors and the achievement of entire linkage for the objective space, time and people. D. The methods converted the urban development into the decentralization policies for the local area are divided into three sides of urban scale, function and location on the local urban development. There are the several factors that the urban development policies have decided from In brief, those are the introducing the funds for the urban development from urban scale, the strengthening the locality and urban structure from urban function and the considering the policies of the management and administration for a broad megalopolis.
디지탈방사선촬영술을 이용한 인접면 치아우식증 진단에 관한 실험적 연구
권기성,황의환,이상래 慶熙大學校 齒科大學 1994 慶熙齒大論文集 Vol.16 No.1
The purposes of this study were clinical comparison and evaluation between digital radiography and conventional radiography for the detection of artificial interproximal caries. Four freshly extracted, unrestored posterior teeth were obtained and canes was simulated by drilling semicircled defect with variable size at the interproximal surface of each tooth. The experiments were performed with IBM-PC/32 bit-DX compatible, video camera(VM-S8200, Hitachi Co., Japan), color monitor(Multisync 3D, NEC, Japan). Sylvia Image Capture Board for the ADC(analog to digital converter) was used, and spatial resolution was 512 x 480 with 256 gray levels. The obtained results were as follows: 1. At the condition of under exposure, the radiographs were superior to the digital images in readability. Also, as the size of the artificial lesion was increased, readability of the radiographs was elevated. 2. The digital images were superior to the radiographs in readability especially under over exsposure. 3. As the exposure time and size of lesion was increased, the gray level of region of interest of the digital image was decreased proportionally. 4. As the F-value of average gray level of region of interest at individual exposure time and size of lesion, gray level of the all lesion sizes was decreased in comparison with that of the normal enamel.
말초혈액에서 Tg mRNA에 대한 역전사 중합효소 연쇄 반응법의 갑상선 재발암의 분자생물학적 진단
권성일,박기룡,김현영,신채희,임영찬,최영식,박요한,이강대,장희경,이재화,염하용 대한내분비학회 2002 Endocrinology and metabolism Vol.17 No.4
연구배경: 갑상선암은 다른 조직에 발생한 암에 비해 비교적 천천히 자라므로 대부분 예후가 양호하지만, 일부에서는 주위 조직으로 침윤하거나 혹은 원격 전이로 인하여 치명적인 결과를 초래할 수 있다. 갑상선전절제술 및 131^I 제거술 후 경과 관찰시 갑상선암의 재발과 전이의 진단에 있어 131^I 스캔과 혈청 Tg의 측정이 현재 임상에서 가장 많이 이용되고 있으나 이 방법에는 여러 가지의 결점이 있다. 최근 Tg mRNA에 대한 RT-PCR법을 이용한 여러 연구결과는 131^I 스캔과 혈청 Tg 측정의 결점을 보완할 수 있는 좋은 보조적인 진단법으로 이용할 수 있을 가능성을 제시하였다. 이에 말초혈액에서 측정한 Tg mRNA에 대한 RT-PCR법이 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무의 진단에 유용한가를 알아보고자 이 연구 시행하였다. 방법: 분화된 갑상선암으로 진단된 후 갑상선전절제술을 시행받고 방사성요드 치료를 받은 환자 중 현재까지 한차례에 이상 추적 방사성요드 전신 스캔을 시행하고 추적관찰이 가능했던 유두선암 35예, 여포선암 5예를 대상으로 연구를 시행하였다. 대상군은 131^I 스캔 소견상 음성인 군(Group Ⅰ), 잔여조직이 있는 군(Group Ⅱ), 국소전이가 있는 군(Group Ⅲ), 및 원격전이 군(Group Ⅳ)으로 구분하였다. 정상 대조군은 갑상선질환이 없는 10예의 건강인으로 하였다. 대상환자의 말초혈액을 이용한 Tg mRNA에 대해 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행하였다. 결과: 본 연구 결과는 다음과 같다. 1) 131^I 스캔 소견상 음성인 군 21예 중 1예에서 Tg가 양성소견을 보였다. Anti Tg Ab가 양성인 4예 모두 Tg가 음성을 보였다. 잔여조직이 있거나 국소전이 및 원격전이를 보인 군 19예 중 Tg가 양성인 경우는 4예였으나, Tg mRNA는 전예에서 양성이었다. 2) 131^I 스캔에서 국소 및 원격전이 소견을 보인 8예 중 4예에서 Tg가 음성으로 131^I 스캔과 혈청 Tg 사이에 불일치 소견을 보였다. 3) 말초혈액에서 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행한 결과 대상군 40예 및 정상 대조군 10예 모두에서 Tg mRNA가 양성을 보였다. 결론: 본 연구에서 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무를 평가함에 있어 역전사 중합효소 연쇄 반응법을 이용한 Tg mRNA 측정의 의의는 재평가되어야 한다고 생각된다. Background: Differentiated thyroid cancer is the most common endocrine malignancy. Despite advances in the treatment of thyroid cancer, disease recurrence and metastasis may occur in as many as 20% of patients, and so continues to pose major problems in its clinical management. Serum thyroglobulin (Tg) measurements, by immunoassay, are used to detect residual or recurrent thyroid cancer following thyriod ablation. However, the usefulness of immunoassay is limited by both the requirement for thyroid hormone withdrawal, to attain optimal test sensitivity, and interference by the antithyroglobulin antibody (Anti-Tg Ab). Recent studies have reported the clinical usefulness of reverse transcription-polymerase chain reaction (RT-PCR) detection of Tg mRNA in the peripheral blood of patients with differentiated thyroid carcinomas. We performed this study to evaluated the usefulness RT-PCR of Tg mRNA in peripheral blood of patients with thyroid carcinoma following a total thyroidectomy and radioiodine ablation therapy. Methods: Forty cases that underwent a total thyroidectomy and radioiodine ablation therapy were included in this study. Of the 40 patients, 35 were papillary carcinomas and 5 were follicular carcinomas. Ten normal control subjects were also studied. Tg mRNA was extracted. Then RT-PCR and nested RT-PCR, were run with specific Tg primers. Concurrently, DNA sequencing of the isolates was carried out to prove the isolates were identical to the nucleotide sequence of the Tg. Results: The Tg was detected in 4 of 19 patients, with either a residual thyroid bed, or metastasis, on a 131^I whole body scan and in 1 of 21 patients with a negative radioiodine scan. Surprisingly, the Tg mRNA was detected in all the patients and normal controls. Conclusion: From our results we can not recommend Tg mRNA, detected by RT-PCR in peripheral blood, as a tumor marker superior to that of the Tg serum level. We consider an intensive re-evaluation of the method is required before considering its clinical applications (J Kor Soc Endocrinol 17:501∼513, 2002).
권영준,한상우,한선호 순천향대학교 1990 논문집 Vol.13 No.1
The psychosocial stressors experienced in the 6 months prior to the admission were studied in 62(27 male and 35 female) inpatients who mets DSM-Ⅲ criteria for bipolar disorder and were hospitalized in the Neuropsychiatric department of Soonchunhyang University Hospital from January 1987 to August 1989. The results were as follows; 1. Among the 249 cases, 36(58.1%) cases had the psychosocial stressors prior to admission. 2. 40.7% of male cases and 71.4% of female cases had the psychosocial stressors prior to admission. Female cases had significantly higher relation to the psychosocial stressors. 3. By the age variable, there was not significant difference in relation to the psychosocial stressors prior to admission. 4. By the different educational level, there was not significant difference in relation to psychosocial stressors prior to admission. 5. By the occupation variable, there was not significant difference in relation to the psychosocial stressors prior to admission. 6. The frequency of the psychosocial stressors was in the order of occupational problems(36.1%), other interpersonal problems(22.1%), financial problems(11.1%) conjugal problems(11.1%).
권상근,서동신 金烏工科大學校 1992 論文集 Vol.13 No.-
본 논문에서는 2-channel PR FIR QMF banks와 웨이브렛 기저 사이의 관계에 대하여 설명하였다. 웨이브렛 기저는 PR FIR QMF 뱅크의 모든 성질을 가지고 있을 뿐 아니라 regularity 조건도 가지고 있다. 그러므로 웨이브렛의 조건과 기존의 PR FIR QMF뱅크를 설계하기 위하여 사용되는 2-component polyphase decomposition 방법을 이용하면 기존의 방법과 다른 방법으로 여파기를 설계하는 것이 가능하다. 이렇게 설계된 여파기들은 PR 조건을 만족할 뿐아니라 compactly supported한 직교 여파기 뱅크가 된다. In this paper, we compared the conditions exciting between PR FIR QMF banks and wavelet bases. The wavelet bases include the all the conditions of PR FIR QMF banks and regularity condition is added. The PR FIR QMF banks could be designed by using the wavelet conditions and 2-component polyphase decomposition which is employed in classical PR FIR QMF banks.
권승구 한국식품유통학회 2004 食品流通硏究 Vol.21 No.4
Joint marketing program by agricultural cooperative has various results and significance, especially in case of it is a starting point of organization program in place of production in spite of short term. However, expansive aim to joint marketing system in place of production is necessary in order to pursue systematic scale in place of production using joint sorting, joint shipping, and joint exact calculation in place of production. Currently the joint marketing program is a relaxed joint form. The most important thing is to induce farmers in place of production to joint marketing program.