한국형 후각검사 KVSS Test의 개발

홍석찬,유영석,김은서,김석천,박수홍,김진국,강성호 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.7

의류 판매원의 서비스에 대한 소비자와 판매원의 인지차이에 대한 연구

김문영,박광희,하영석 한국의류산업학회 2004 한국의류산업학회지 Vol.6 No.2

The purposes of this study was to exploit the differences on recognition for the service provided between salespeople and customers who have purchased fashion apparels and garments at the department stores, and to suggest the educational direction of salespeople in order to enhance competitiveness and to increase customers' satisfaction. Data were obtained from 297 apparel salespeople working at 6 department stores and 285 customers of department stores in Daegu. Statistics used for data analysis were frequency, mean, t-test, ANOVA, and regression analyses. The important factors which affected the purchase of fashion products, in order of importance, were information ability, credibility and service quality of salespeople. But the service quality recognized by customers was lower than that by salespeople. It can be said the salespeople have to make every effort that customers feel comfortable and certain for the service provided. There were significant difference on the service provided by salespeople, as well as service quality recognized by customers in accordance with gender, marital status, age, level of education, and annual fashion apparel expenses.

산성강하물이 지표수의 산성화에 미치는 영향 Ⅰ: 현장 조사

김영관,이동석,김만구,우경식 江原大學校 附設 環境硏究所 1997 環境硏究 Vol.14 No.-

Effects of acid deposition on the acidification of surface water over a short period were studied during June~October, 1995. A reservoir located in Chunchon, Kangwondo was selected for this study because this reservoir had received little man-made pollutants. Geological survey within the study area was carried out and the pH of a small and shallow stream flowing from the mountain valley down to the reservoir was monitored. Rainfall was measured by using a rain gauge and the precipitation was collected by automatic precipitation sampler. During the study period, rain pH was in the range of 3.81~5.77 with an average of 4.8. The EC was in the range of 8~189㎲/cm with an average of 10.6㎲/cm. Ionic composition of the rainfall showed that, of the anions, deposition of SO₄^(2-) was highest with 3,119.7 kg/㎢, and is was NH^(4+)with 1,053.2kg/㎢ for cations. The surface water pHs were maintained neutral or weak basic, representing little evidence of acidification regardless of the acidic rainfall pH. Every time of sampling, however, the pHs exhibited increasing tendency as elevation of measuring site of the stream become lowered, which indicated the impacts of acid-base reactions by acidic or basic substances during travel of water downstream. This result suggested the necessity of further research to determine the respective buffering capacity of soil and underlying rocks. 산성강하물이 단기간에 걸쳐 지표수의 산성화에 미치는 영향을 조사하기 위하여 1995년 6월 부터 10월까지 외부오염원이 거의 없는 강원도 춘천시에 위치한 저수지를 선정하여 인구를 수행하였다. 연구지역 일대의 지질을 조사하고 산골짜기에서 저수지로 흐르는 작고 얕은 하천의 수질을 분석하였다. 강우량은 우량계를 이용하여 측정하였고 강하물은 자동포집기를 이용하여 포집하였다. 연구기간동안의 강우의 pH범위는 3.81~5-77로 평균 4.8을 나타내었으며 전기전도도(EC)sms 5~189㎲/cm로 평균 10.6㎲/cm를 나타냈다. 음이온 중에서는 SO₄^(2-)의 강하량이 3,119.7kg/㎢로 가장 많았고, 양이온 중에서는 NH^(4+)가 1,053.2kg/㎢로 가장 많았다. 지표수의 pH는 중성 또는 약염기성으로 강우의 pH가 산성이었음에도 지표수의 산성화 현상은 관찰되지 않았다. 그러나 골짜기에서 흐르는 하천수를 측정할때마다 측정지점의 고도가 낮아질수록 pH값은 증가하는 경향을 나타내어 물이 하류로 흘러가는 동안에 일어난 산성 또는 염기성물질로 인한 산염기반응의 영향을 보여주었다. 이 결과는 토양의 완충능력과 모암내에서의 중화능력을 각각 구별하여 조사할 필요성을 제시하였다.

Pre-Stress 狀態에서 一定한 反復變位에 依한 砂岩의 疲勞破壤擧動에 關한 硏究<第2報> : 力學的係數들과 彈性度 및 塑性度의 變化 Variations Mechanical Moduli, Elastic and Plastic Degree

金溢中,金昇坤,金永錫 全北大學校 1989 論文集 Vol.31 No.-

The uniaxial cyclic displacement tests were performed to investigate and examine the fatigue failure behavior of sandstone at the staged pre-stress levels and under constant-displacement boundary conditions. The experimental results reported here have been limited to variations of elastic moduli, elastic degree and plastic degree with the staged pre-stress levels and the number of cycles. Some of the conclusions which may be derived from the results of the studies are as follows : 1. When the rocks failed, the elastic moduli and the elastic degree rapidly decreased, but the plastic degree rapidly increased. The higher the rocks were loaded in comparison with previous ones, the higher the plastic degree, and the shorter fatigue life. 2. In a second run after recess the displacement, chord modulus was also rapidly increased at the second cycle, because a large quantity of plastic strain was produced at the first cycle. 3. The fatigue life must be relatively determined not only with respect to the decreasing rate of compression modulus and dynamic compression modulus, but also the plastic degree and plastic strains. 4. The elastic degree was not proportional to the elastic strains, while the plastic degree was proportional to the plastic strains 5. As an increasing rate of strain decreases, recovery modulus and chord modulus curves approach each other, and their separation means that fatigue limits have been reached.

개원의의 진료의뢰시 기대요인 및 만족도에 관한 연구 : 협력병원체제 여부를 중심으로

김동일,김해준,윤석준,문영배 한국의료QA학회 2002 한국의료질향상학회지 Vol.9 No.2

Background : This research, as a part of improving management process of college hospital in this rapidly changing circumstances, is searching for the actual state of private clinics referring patients to referral center including college hospitals. Methods : This research examined the sense of satisfaction and requesting degree in using referral center and by analyzing the correlation and differences among factors such as primary factors regarded as selecting ones in referring patients to a referral center in college hospital and expecting factors expected to be supported to patients and cooperative hospitals. Results : The main researched results are as follows. First, as for the primary factors, the differences between cooperative and uncooperative hospitals revealed the fact that choosing target hospital in accordance with cooperative relation and convenient process in referring patients are important. Second, satisfaction rates, analyzed from the paired t-test revealed kindness and convenience as the top priorities, while sending patients back again and benefit of supporting such as the use of facilities were revealed as the least satisfactory aspects, despite the fact that they should be fulfilled through actual service. Conclusion : The recognition of the practitioner is examined and analyzed in this research by examining primary factors in selecting college hospitals, expecting factors expected to be supported to patients and satisfaction degree, which are expected to be used as basic materials for the development of referral center of college hospitals.

Competitive PCR법을 이용한 Marine birnavirus(MABV)의 정량적 검출

김영진,김석렬,정성주,오명주 한국어병학회 2001 한국어병학회지 Vol.14 No.3

기존의 어류 병원성 바이러스 연구에 있어 주화세포를 이용한 TCID_50과 plaque assay는 미량의 바이러스에 대해, 그리고 현재 많이 사용되고 있는 polymerase chain reaction(PCR)은 정확한 정량이 힘들다는 것이 각각 단점으로 지적된 바 있다. 이에 어류 병원 바이러스를 효율적으로 조사하기 위한 방법을 개발하고자 연안 양식장에 만연해 있는 marine birnavirus(MABV)를 대상으로 competitive PCR을 이용하여 그 감도 및 정량성 여부를 시험하였다. 본 연구에서 1.44×10^7 PFU/㎖의 바이러스 액에 대해 10^4배 희석한 바이러스 시료까지 검출이 가능하였고, 이 바이러스 액 200㎕에는 약 100 copy의 MABV cDNA가 존재함을 확인할 수 있어 이와 같은 바이러스 유전자의 양을 토대로 간접적인 추정이 가능할 것으로 판단되었다. 감염된 개체에 있는 viral genome의 수는 질병의 진행을 monitor하는 데 중요한 parameter의 하나로서 이 방법을 이용하여 얻어진 정보는 infection stage의 구분에 대한 기초자료로 이용할 수 있을 것으로 판단된다. It has been shown that TCID_50 and plaque assay might be hard to apply for the analysis of small amount of virus. Additionally polymerase chain reaction(PCR) does reply the quantity of virus correctly. Thus we developed the competitve PCR, and effective mean to investigate fish pathogenic virus, and analyzed the sensitivity against marine birnavirus (MABV). In this study, the virus sample of 1.44×10^7PFU/㎖ was detected after up to 10^4 dilution. And the existence of 100 copies MABV cDNA was identified with the competitive PCR in this virus sample. These results indicated that the indirect presumption was available on the basis of the amounts the viral genome. Viral genome's number in the infected individual can be used as the fundamental data to divide the infection stage and to monitor the progress of disease.

岩石의 剪斷强度와 破壞特性에 關한 硏究

金永錫 全北大學校 1981 論文集 Vol.23 No.-

An uniaxial compression, a Brazilian test and a direct shear test were performed to determine the shear strengths of the specimen of Gom-chi Hill sandstone and Cheon-ho Mt. limestone and to compare them with each other. The stress-axial, stress-lateral strain and stress-volumetric strain diagrams are displayed on a graph to determine the failure property of limestone. The result shows that all of the shear strengths determined by the different testing methods are not in accordance with each other, but the shear strength determined by the equation (1) is almost equal to that on the common tangent line of Mohr's circle. The failure properties of Cheon-ho limestone represent that in the beginning, porosity is compacted because of low uniaxial compressive strength, microcracks occur at the next stage, and the stress-lateral strain greater than the stress-axial strain occurs at the failure stage.

水平不連續面을 含有하는 岩石의 破壞特性에 관하여

金溢中,金永錫 全北大學校 1990 論文集 Vol.32 No.-

The following conclusions were reached from the uniaxial compression tests for the stratiform specimens composed of two different specimens with the artificial joint in order to study the failure properties of the specimens including a joint. 1. Compressive strength of the stratiform specimens approached to that of the specimen with the lower compressive strength while the effects of the horizontal joint on the uniaxial compressive strength, Young's modulus and the poisson's ratio were small. 2. In the stratiform specimens, the larger the difference between the two specimens strength, the more the decrease of the strength of the specimen with the high compressive strength, but the increase of the strength of the specimen with low compressive strength was not kept regular. 3. Since the axial stress-axial strain curves of stratiform specimens approaches to those of the specimens with the lower compressive strength, Young's modulus was effected much by that of the specimen with the lower compressive strength. 4. The fracture cracks of the stratiform specimens were parallel to the load direction and the fracture cracks occured in the specimen with lower compressive strength become more than the one with the higher compressive strength. If the difference between uniaxial compressive strength of intact specimens wereover about 1550kg/㎠, the fracture cracks stop in the joint. 5. The specimen with the smaller ν/E, in the joint of the stratiform specimens, received tensile stress by the specimen with the larger ν/E to approach the compressive strength of the one with the larger ν/E.

연장된 연변절개를 이용한 코성형술

윤영석,장태영,김규성 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.9

대장암 주변에서 관찰되는 백색반점의 병리조직학적 특성과 임상적 의의

김효종,조진만,장린,동석호,김윤화,장영운,박일랑,김병호,이정일 대한소화기내시경학회 1999 Clinical Endoscopy Vol.19 No.4

Background/Aims: To investigate the difference between colorectal adenocarcinomas with white spots (foamy cells) and those without white spots, clinically and histopathologically, were examined 37 cases of colorectal adenocarcinomas were classified in this study. Methods: Two groups: those with white spots and those without. In each case, evidence of lymph node and liver metastasis was sought. Immunoreactive staining for macrophage was performed. Results: Increased incidence of exophytic tumors was found (73%, p=0.028) in the group with white spots. The incidences of lymph node metastasis were 33% vs. 45% between the group with white spots and the group of without, but the difference was not statistically significant. Conclusions: These results suggested that foamy cells might have a beneficial role in colorectal cancer, although they were not statistically significant. Therefore, further prospective study be warranted.