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김용배,정대봉,조수형,조남수,박영봉,박상기,김춘호,양은석,문경래 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3
Drowning is the second most common cause of accidental death of children in Korea. But the study of near-drowning is very rare in Korea. The purpose of our study is to determine the factors that may influence survival on the basis of submersion time, consciousness state upon admission to hospital, the kinds of water, laboratory findings and neurological outcomes. The survey was performed by a retrospective cohort study on 28 near-drowning victims of less than 15 years of age who were admitted to the emergency room in the Chosun University Hospital between May 1988 & May 1997. The results were as follows :1)Sex distribution was 22 males and 6 females. 2) Submersion time was <5 minutes in 9 cases, 5-9 minutes in 6 cases, 10-14 minutes in 5cases, 15-19 minutes in 3 cases, ≥20 minutes in 5cases. 3) Comatose patients upon arrival were 6/7 cases in the death group(86%) and 2/21 cases in the improved group(10%). They had unfavorable outcomes(P<0.05). 4) The first PH value was mean 7.02±0.12 in the death group and mean 7.31±0.13 in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05) 5) The patients who gad increased blood glucose concentration were all 7 cases in the death group and 12/22 cases in the improved group(54%). The mean blood glucose concentration was mean 424.7235.6㎎/㎗ in the death group and mean 140.182.7㎎/㎗ in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05). 6) The patients who had pulmonary edema upon arrival were all 7 cases in the death group and 1/21 cases in the improved group(46%). They had unfavorable outcomes(P<0.05). 7) The patients who had been submerged more than 15 minutes were all 7 cases in the death group and 6/21 cases in the improved group(5%). They had unfavorable outcomes(P<0.05). We conclude that pediatric victims of near-drowning can be assigned to high or low likelihoods of unfavorable our outcomes with the use of five variables ; comatose mentation upon arrival decreased initial blood pH, increased initial blood glucose concentration, pulmonary edema, and maximum submersion time estimated longer than fiften minutes. This prediction rule may be useful if it can be validated in another cohort.
박수봉 김천대학교 2003 김천대학교 논문집 Vol.24 No.-
Fifteen subjects were fitted with progressive additional lens and they were divided into 3 groups. The first group had never worn add for reading before and their adds ranged between +1.00 - +1.50D. The second group made up of wearers who had been wearing a standard from of bifocal before switching to progressive additional lens and their adds fell in the +1.75 to +2.00D range. The third group comprised subjects who had been wearing a standard form of bifocal before choosing the progressive lens and their adds utilized a +2.25 to +2.50D. After wearing identical near power in blended bifocal, 13 subjects preferred to wear the progressive additional lenses. The second experiment subjects were 20 people and had never worn pro- gressive lens before. The first group whose add ranged between +1.00 and +1.50D. 4 of 6 had never worn adds for reading before. Eight subjects com- prised a group whose add powers fell in the +1.75 to +2.00D range. Only one of these had not worn some addition for near before. The final 6 required adds of +2.25 and +2.50 and had been wearing a near point addition for some time. Some tried the blended lenses first and then the progressive lenses while some wore the progressive lenses before the blended. 15 chose the progres- sive additions, with two selecting blended lenses and 3 returning to a stan- dard form. The experiment reveals that given any opportunity to compare the optical aspects of both blended bifocals and progressive addition lenses, the over-whelming propotion of subjects selected a progressive addition lens. A blended bifocal, despite the fact that it also caters to cosmetic favor through its invisibility is not an actual substitute for or replacement of a progressive addition lens insofar as apparent optical features and patient comfort and preference is concerned.
박석규,손봉수,문주석 순천대학교 기초과학연구소 1993 基礎科學硏究誌 Vol.4 No.-
For the screening of a highly viscous exopolysaccharide, a bacterium strain was isolated from soils and identified as Bacillus sp. SFN-83 accroding to the morphological, cultural and physiological properties. The optimum concentration of carbon and nitrogen sources were 1% sucrose and 0.3% ammonium vanadate. At the condition, exopolysaccharide production and product yield were 6.73g/l and 67.3%, respectively.
에지특징에 근거한 이미지영역 분리와 DCT를 이용한 얼굴 인식
박수봉,이인범 東新大學校 1998 論文集 Vol.10 No.-
In this paper, we propose a face recognition algorithm which extract characteristics of image using edge and DCT(Discrete Cosine Transform). In this algorithm, training vectors of neural networks is the extracted data. With the same luminesce and distance, the fixed CCD camera, human face was captured. Edge characteristics of face images is concentrated in eye bows and mouth. Therefore, using edge characteristics of face images, it was segmented with square region. we determined this area to the characteristics region of face images, and contains eye bows, eyes, nose and mouth. Also, after executing DCT for this square region, we extracted feature vector. This feature vector was normalized and set the input vector of neural networks. Simulation results show 100% recognition for 30 face images when face images were learned and 94% recognition rate when face images weren't learned. Also, in case of DCT processing, the proposed algorithm reduced 55% operation time than to process all face images.
박노석,정봉수 진주산업대학교 1972 論文集 Vol.10 No.-
This is the second step investigation of the usage and the Custom Work on the actual Conditon of Agricultural machinaries in Chinju area. Power tillers threshers and barely threshers were investigated for this examine and the results are as follows, 1. In percentage by age of agricultural machinaries, it was the highest between 31 and 40 with 30%. 2. Ones who had their own power tiller was 93.9% of the whole proprietor. 3. In the age of proprietor, farmers below the primary sehool level kept 46.4% and farmers above the high school had 31% in power case. 4. The average number of days for the farmers own use of their threshers and barley threshers is less than 5 days per year, but 35% of the farmers who custom work for 6-10 days occupys the highest percentage and 33.3% of them custom work for 11~15 days per year. 5. Income from power tiller are the highest as 47% with carring among the whole incomes of the cultivates, seeding and carryings.
실온에서 Al-SiO_2-Si(100)_p형 계의 경계면 반응
박동수,손기수,이원식,박봉두 慶北大學校 物理化學硏究所 1985 硏究論文集 Vol.6 No.-
실온에서 알루미늄 산화층(SiO_2)-반도체〔Si(100)_p형〕 소자의 경계면 반응을 Ar^+이온 sputter총을 부착한 AES로 수행했다. SiO_2-Si 경계면은 Si-Si 결합, Si-O 결합의 두 가지 상태를 갖고 있으며, 경계면 넓이는 약 30Å였다. Al-SiO_2-Si 반도체 소자의 경계면 반응은 SiO_2 속의 자유 실리콘이 알루미늄 표면으로 확산되고, 알루미늄과 SiO_2 경계면에 대량의 자유 실리콘이 존재한다. Al-interfacial layer(SiO_2)-semiconductor Si(100)_p-type structures were investigated by the Auger Electron Spectroscopy. The results of depth profiling Ar^+ -ion sputtering are presented for the SiO_2-Si(100)_p-type cell. In the interface, Silicon exists in only two distinct bonding states: Si-Si or Si-O bonding. The exact width of the interface is known as indefinite, but here we estimate it approximately 30Å. The results of depth profiling Ar^+ -ion sputtering are also presented for the Al-SiO_2-Si(100)_p-type cell. Metal(Si) atoms from deposited interfacial oxide layer were observed on the Al surface. The interfacial reaction takes place between Al and the interfacial layer at the room temperature. The diffusion of metal(Si) atoms from the interfacial layer towards the Al surface is suspected to play a role in degradation effect in the MIS solar cells.
朴秀峰 東新大學校 1996 論文集 Vol.8 No.-
In this paper, we developed an optical distribution device for the application of an optical switching and an optical subscriber loop. To approach this objective, we fabricated thin film by LPCVD, simulated dispersion property to be a single-mode after rib-type optical waveguide of three-dimension had approximated to two-dimension by an effective refractive index method. By BPM simulation, we found that an optimal condition of rib-type waveguide is core width of 4㎛ when etched by 4㎛ under 3㎛ of cladding layer, 3㎛ of core layer, 10㎛ of buffer layer. As a result for designing the Y-branch with optical distribution function using this condition, we found that the loss in branching area equivalent for 3000㎛-6000㎛ to z-axis direction is 0.1581dB. Also, it is clear that the waveguide mode of fabricated Y-branch is single mode. In the cases of connecting Y-branch after fixing optical fiber by fabricated V-groove and firming by inserting of index matching oil after fixing, the coupling loss was 0.34dB and 0.14dB respectively.
박석규,박필숙,손봉수,문주석 순천대학교 기초과학연구소 1993 基礎科學硏究誌 Vol.4 No.-
Changes in taste components of Backilju, an old Korean cleraed rice wine, were investigated. During brewing, pH and titratable acidity of mash were decreased or increased in the range of 3.41→3.81 and 8.62→6.74, respectively. The final product of Backilju filtrate, fermented for 100 days, contained 0.36% reducing sugar, 2.68% total sugar, 606.6 ㎎% total acid, 2.5 ㎎% volatile acid and 22.9㎎ solid/ml extract. Major volatile components analized by GC/MS methods were 3-methyl-1-butanol acetate, 4-decanol and dimethyl disulfide. Calcium(20.26ppm) was the most abundant, followed by magnesium(3.19ppm) and zinc(1.87ppm). Nucleotides and their related compounds were inosine(0.12→0.44 mM/ml), ADP(0.16→0.33 mM/ml) and hypoxanthine(0.33→0.04 mM/ml). Compared with other Korean traditional Yakju, Backilju contained more total acid and mineral but less sugar and volatile acid.
특수콘크리트를 이용한 가로 경관시설물 개발에 관한 기초연구
박봉우,한갑수 강원대학교 석재복합신소재제품연구센터 1997 석재연 논문집 Vol.2 No.-
본 연구는 특수 콘크리트를 사용하여 가로경관 시설물 관련 제품을 생산하기 위한 기초 자료를 얻을 목적으로 수행하였다. 조사는 기존의 도시 가로를 구시가지, 신시가지, 문화거리로 구분하여 가로 경관 시설물을 현황을 조사하였다. 장소에 따른 가로 경관 시설물을 종류는 크게 다르지 않았으며, 시설물의 소재(사용재료)는 철제품이 주종을 이루고 있었다. 또 이들 가로 경관 시설물은 도로에 관련된 정보 전달을 위한 기능성에 치중하고 있고, 경관 기여도는 낮은 것으로 평가되었다. 이렇게 조사된 결과를 토대로 하여 경관 기여도를 높일 수 있는 수목용 플랜터(planter for trees and shrub)와 자연성의 도입을 유도할 수 있는 생태블럭(eco-block)의 모형을 제시하였다. This study is conducted to collect basic data for special concrete material to be applied for making street furniture and related products. For this purpose, this study first classified existing city streets into old town area, newly developed area and cultural street, then surveyed the number and the kind of street furniture located in them. In result, the survey showed that the street furniture was not different among the streets in terms of kind, and steel including nonferrous metal was used as the main material for it, and the contribution to the landscape was limitied. Based upon the results, we suggest the pilot models of a planter for trees and shrubs which can make a greater contribution to the surrounding landscape, and of an eco-block to give naturalness to the urban settings.