한우 성별에 따른 등심의 육질특성 비교

최정석, 정동순, 최석현, 이상화, 김종희, 최양일 忠北大學校 農業科學硏究所 2011 農業科學硏究 Vol.27 No.4

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피부색을 이용한 얼굴 특징 성분의 실시간 검출

최찬석,이정문 강원대학교 정보통신연구소 2004 정보통신논문지 Vol.8 No.-

Face region detection is a very important step in the face recognition process for real-time applications. This paper presents a method to detect a face region using skin color information in Y·Cb·Cr color space. We propose a simple and highly applicable method of extracting facial features in the selected region. capturing a still image by a PC camera, we search a skin-like region using skin color filtering. Then we decide the face region by cropping the skin-like region. Finally, we extract each facial feature(eye, nose, mouth, and eyebrows) from the cropped region using histogram projection methods.

조혈모세포이식 환자에서 발생한 Cytomegalovirus 질환의 특징 : 일개 대학변원에서 최근 10년간의 경험

최수미,이동건,박선희,김시현,김유진,민창기,김희제,이석,최정현,유진홍,김동욱,이종욱,민우성,신완식,김춘추 대한감염학회 2009 감염과 화학요법 Vol.41 No.1

Background : Studies on cytomegalovirus (CMV) diseases in Korean hematopoietic stem cell transplant (HSCT) recipients are lacking and do not reflect the recent trends of advances and changes. Therefore, we tried to analyze the clinical features of CMV diseases in HSCT recipients over the past 10 years at a tertiary university hospital in Korea. Methods : Retrospective review of medical records was done for all adult HSCT patients who received transplant at the Catholic HSCT Center from January 1998 to January 2008. Results : Forty-four cases (2.2%) of CMV diseases were identified. CMV pneumonia was diagnosed in 17 patients, retinitis in 16 patients, enterocolitis in 7 patients, esophagitis 1 patient, gastritis in 1 patient, duodenitis in 1 patient, and hepatitis in 1 patient. The median onset of symptom was 90 days after transplantation. Late CMV diseases accounted for 47.7%. CMV related death varied from 0 to 58.8% according to the involved organ. CMV retinitis was diagnosed relatively later in the course of transplantation mostly in patients who had chronic graft versus host disease (GVHD). On the contrary, CMV enterocolitis mainly occurred in patients who suffered from acute GVHD. The overall concurrent CMV reactivation was documented to be 63.6%: the concurrent CMV reactivation was observed only in 37.5% of patients with retinitis. Conclusions : We observed some differences in the pattern of CMV disease manifestation according to the involved organ and reconfirmed the fact that CMV pneumonia is the most common and fatal disease in HSCT recipients. Additionally, CMV retinitis was not uncommon in HSCT recipients. Since specific marker does not exist in predicting retinitis, regular ocular examination should be done thoroughly, especially in patients with chronic GVHD.

갈바닉 전류를 이용한 철근부식 탐사기술에 관한 연구 : Part 2: 콘크리트에서 행한 전기화학적 시험 Part 2: Laboratory Electrochemical Testing of Sensors in Concrete

최윤석,박진택,김정구 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.1

The correlation between sensor output and the corrosion rate of steel bar was confirmed in concrete environment. Monitoring of open-circuit potential, linear polarization resistance (LPR) measurement and electrochemical impedance spectroscopy (EIS) were used to evaluate the corrosion behavior of steel bar embedded in concrete. Also, galvanic current measurements of designed sensors were conducted to obtain the charge of sensor embedded in concrete. In this study, the results of corrosion behavior of reinforcing steel showed a consistence among the data obtained by open-circuit potential monitoring, LPR and EIS measurements. Steel/copper sensor showed a good correlation in concrete environment between sensor output and corrosion rate of steel bar. However, there was no relationship between steel/stainless steel sensor output and corrosion rate of steel bar due to the low galvanic current output. Through the relationship between the steel/copper sensor output and the corrosion rate of reinforcing steel, real corrosion damage of the reinforcing steel can reliably be detected. (Received October 29, 2004)

휴대폰 컬러가 브랜드 개성, 브랜드 충성도 및 구매의도에 미치는 영향

최정민;김준석 경희대학교 산업관계연구소 2008 産硏論叢 Vol.33 No.-

본 연구는 브랜드를 효과적으로 차별화하고 지속적인 경쟁우위를 창출 할 수 있도록 휴대폰 컬러가 브랜드 개성, 브랜드 충성도가 구매의도에 어떠한 영향을 미치는가에 대해 검증하였다. 본 연구의 목적을 달성하기 위하여 현재 휴대폰을 사용하고 있는 서울시 20대-30대의 남성과 여성을 대상으로 조사를 실시하였다. 작성된 설문지는 총 350부 중에서 303부가 회수되어 분석에 부적합한 14부를 제외한 289부를 분석대상으로 하여 실증 분석을 실시하였다. 본 연구의 주요결과는 첫째, 휴대폰 컬러가 브랜드 개성에 영향을 미친다. 둘째, 휴대폰 컬러가 구매의도에 영향을 미친다. 셋째, 기업이 제품카테고리 속성으로서의 개성을 명확하게 전달하는 것이 충성도를 높일 수 있다는 것으로 나타났다. 넷째, 브랜드 개성요인에 따라 소비자의 구매의도에 영향력을 가지는 것으로 나타나 브랜드 충성도와 구매의도에 미치는 브랜드 개성요인이 일치 할 수 있음을 보여준다. 마지막으로 브랜드 충성도가 제품을 구매하고 주위사람들에게 브랜드의 제품을 추천하는 구전활동을 하면서 소비자의 구매행동과 밀접한 관련이 있게 된다. 본 연구는 향후 기업의 경영전략과 브랜드 구조에 적합한 컬러 프로그램의 체계적 수립과 전략적 관리는 뚜렷한 브랜드 개성을 가지게 해주며 기업 자산 가치의 성장에 막대한 영향을 끼치는 중요한 요소가 된다는 점, 이러한 브랜드 개성이 소비자들에게 브랜드 충성도를 가지게 하며, 구매의도에도 많은 영향을 미친다는 것에서 의의를 찾을 수 있다. This study aims to testify the effect of the color of a mobile phone on brand personality and of brand loyalty on a customer’s purchase intention were verified in this study so that mobile-phone brands could be effectively differentiated, the sales of mobile-phone companies would increase, and competitiveness would be fostered. The results of this study are: First, the color of a mobile phone influences brand personality. Second, the color of a mobile phone affects the customer’s purchase intention. Third, a company’s enhancement of its brand personality can boost the consumers’ brand loyalty. Forth, brand personality, which is the offshoot of the implementation of an effective product personality presentation and communication strategy, strongly influences purchase intention. Finally, brand loyalty influences purchase intention. Based on the results of this study, it can be concluded that companies should endeavor to strengthen their customers’ brand loyalty by utilizing brand communities, and should improve their performance. Moreover, the study results show that brand loyalty influences people to purchase a product and to relay information about it to others by word of mouth. In other words, brand loyalty was found to have a close correlation with the consumers’ purchase behavior. As this pertains to the actual purchase of a product, a company that endeavors to strengthen its customers’ brand loyalty can expect its sales to increase and can expect to become more competitive.

한국 연안 퇴적물에서 ^137Cs, ^90Sr 및 Pu 동위원소의 분포

최석원,진현국,김철수,노정환,김창규,노병환 대한방사선 방어학회 2002 방사선방어학회지 Vol.27 No.2

한국 주변 연안 15개 정점의 퇴적물(0∼20 cm)에서 ^137Cs, ^90Sr, ^239+240Pu 의 농도와 농도비를 조사했다. ^137Cs, ^90Sr, ^238Pu 및^239+240Pu의 평균 방사능 농도는 각각 2.24±0.79 Bq·kg^-1-dry, 0.20±0.04 Bq·kg^-1-dry, 0.009±0.005 Bq·kg^-1-dry 및 0.27±0.17 Bq·kg^-1-dry이다. ^137Cs/^90Sr, ^239+240Pu/^137Cs 및 ^238Pu/229+240Pu의 평균 농도 비와 ^239Pu/240의 평균 원자 비는 각각 11.2±2.9, 0.123±0.053, 0.033±0.01 및 0.218±0.036이다. 퇴적물에서 핵종의 농도 범위와 핵종간의 농도 비는 그 동안 주변국가의 퇴적물에서 조사한 값과 비슷하였다. 퇴적물에서 ^137Cs과 ^239+240Pu의 상관계수는 0.80이다. ^137Cs과 SOM, ^239+240Pu과 점토 함량과의 상관계수는 각각 0.69, 0.67 이다. The concentrations and activity ratios of ^137Cs, ^90Sr, ^238Pu and ^239+240Pu in sediment(0∼20 cm) at 15 coastal stations of Korea were determined. The mean concentrations of ^137Cs, ^90Sr, ^238Pu and ^239+240Pu are 2.24±0.79 Bq·kg^-1-dry, 0.20±0.04 Bq·kg^-1-dry, 0.009±0.005 Bq·kg^-1-dry and 0.27±0.17 Bq·kg^-1-dry, respectively. The mean activity ratios of ^137Cs/^90Sr, ^239+240Pu/^137Cs and ^238Pu/^229+240Pu and atomic ratio of ^240Pu/^239Pu are 11.2±2.9, 0.123±0.053 and 0.033±0.017 and 0.218±0.036, respectively. The concentrations and activity ratios in sediment samples are similar to those reported from neighbouring country in the northern hemisphere. The correlation coefficient of ^137Cs and ^239+240Pu is 0.80. The correlation coefficient of ^137Cs and soil organic matter(SOM), and ^239+240Pu and clay content are 0.69 and 0.67, respectively.

상수도 배관의 부식감지시스템 개발 (Ⅰ)

최윤석,김정구 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.10

In order to develop a new corrosion sensor for detecting and monitoring the corrosion of buried pipeline, sensor element design and the correlation of its output to corrosion rate of steel pipe itself were evaluated by laboratory test methods in synthetic groundwater. It uses well-known principles of galvanic corrosion and consists of two dissimilar metals (anode and cathode) installed on the buried pipeline. In this paper, two types of electrochemical probes were used: galvanic cells containing pipeline steel (CS)-copper (Cu) and pipeline steel (CS)-type 304 stainless steel (SS) couples. The corrosion behavior in synthetic groundwater for the different electrodes was investigated by potentiodynamic test. The galvanic corrosion test was accomplished by a zero resistance ammeter technique. Weight loss measurements were conducted to obtain the corrosion rates of pipeline steel in synthetic groundwater. The correlation between galvanic current and corrosion rate was obtained by galvanic current measurement and corrosion rate measurements. The results of the potentiodynamic test indicated that copper exhibited an active corrosion behavior, while stainless steel demonstrated spontaneous passivation. In galvanic corrosion tests, the galvanic current of copper-steel couple was higher than that of other couple. The comparison of the sensor output and corrosion rate revealed that a linear relationship was found between the probe current and the corrosion rate. Especially, a better linear quantitative relationship was found between the Cu-CS probe current and the weight loss data of the pipeline steel coupons. In addition, the Cu-CS probe is more suitable for high resistance soil than SS-CS probe, due to the high current output.

한 · 일 중재법상 중재판정의 비교법적 고찰

최석범,정재우,김태환 韓國仲裁學會 2006 중재연구 Vol.16 No.1

The parties in the trade can have full autonomy and can resolve disputes independently, impartially and without delay by selecting arbitration by agreement. Korea and Japan had revised their Arbitration Laws to incorporate as many provisions of the 1985 UNCITRAL Model Law as possible. Japan had amended its century-cld arbitration law, becoming the 45th country to adopt the UNCITRAL Model Law on International commercial arbitration. New Arbitration Law was enacted as Law No.138 of 2003 and effective on March 1, 2004, is applicable to both national international arbitration. Korea had amended its arbitration law on December 31, 1999 and its New Arbitration Law incorporates the most of the 1985 UNCITRAL Model Law as Japan. Arbitration must be popular in resolving international commercial disputes in Northeast Asian bloc in order to increase the volume of intra-trade in the Northeast Asian bloc. But in order for the parties to make use of arbitration in the bloc, the arbitration laws of nations in the bloc must have similarity and unification. As Korea and Japan playes important roles in the bloc, both nations's arbitration laws must be studied in view of similarity and difference to unify both nations' arbitration laws by way of showing an example. Therefore, this paper deals with both nations' arbitration laws in view of comparative law to unify their arbitration laws and Northeast Asian Nations' arbitration laws.

상수도 배관의 부식감지시스템 개발 (Ⅱ)

최윤석,신동호,김상현,김정구 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.4

In order to develop a new corrosion sensor for detecting and monitoring the corrosion of buried pipeline, the electrochemical property of sensors and the correlation of its output to corrosion rate of steel pipe, were evaluated by electrochemical methods in synthetic groundwater, two soils of varying resistivity (5,000 ohm-cm, 10,000 ohm-cm), and synthetic tap water. In this paper, two types of electrochemical probes were used: galvanic cells containing of pipeline steel-copper and pipeline steel-stainless steel (Type 304). The results of EIS measurement indicated that the sensor current was inversely related to sensor resistance, which was governed by the corrosion behavior of cathode. In galvanic corrosion tests, the galvanic current of Cu-CS probe was higher than that of SS-CS probe. The comparison of the sensor output and corrosion rates revealed that a linear relationship was found between the probe current and the corrosion rates. A good linear quantitative relationship was found between the Cu-CS probe current and the corrosion rate of pipeline steel coupons in the soil resistivity of 5,000 ohm-cm, and synthetic tap water. In the case of the soil resistivity of 10,000 ohm-cm, although the SS-CS probe showed a better linear correlation than that of Cu-CS probe, the Cu-CS probe is more suitable than SS-CS probe, due to the high current output. (Received February 1, 2005)

신상아에서 후족부 모세 혈액 검사 이후에 발생한 종골 골수염

최장석,김정원 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.3

In neonate, osteomyelitis of the calcaneus is extremely rare and various reports have indicated that it accounts for 3~8% of all bone infections among neonates, infection can result from hematogenous seeding or direct inoculation, as seen in puncture wounds (accidental or for blood sampling), open fracture, degloving injuries. and extension of pressure ulceration. Although direct inoculation has been reported to be the more frequent cause, other reports suggest a hematogenous etiology in the majority. We compared our experience that neonate calcaneal osteomyelitis after hind foot capillary blood sampling for cogenital metabolic deficiencies test and follow up of bilirubin level at Paik Hospital, Inje University, Pusan, Korea to that reported in the literature to determine if the experience at this institution was similar to that previously reported. Additionally, characteristics of the clinical presentation, laboratory investigation, treatment, and outcome were studied to determine if any factors might be helpful in making an earlier diagnosis, improving outcome, or both.