번식후보 종빈돈의 종부 및 영양관리 요령

조용찬 충남대학교 농과대학 2000 논문집 Vol.- No.6

Q&A : 지반공학적 문제에 대한 답을 드립니다

조용찬 한국지반공학회 2008 지반 : 한국지반공학회지 Vol.24 No.4

수도권 통합요금제 시행에 따른 철도부문 수입금 변화에 대한 연구

조용찬,김석홍,Jo, Yong-Chan,Kim, Seok-Hong 대한교통학회 2009 교통 기술과 정책 Vol.6 No.1

자연사면 거동 관측을 위한 계측사례

조용찬,김경수,채병곤,이대하,김원영 대한지질공학회 2002 대한지질공학회 학술발표회논문집 Vol.2002 No.-

폭락한 중국증시, 2013년에 상승한다 제5세대 지도부 탄생은 주식시장에 호재

조용찬 포스코경영연구원 2012 CHINDIA Plus Vol.75 No.-

태풍 "루사" 에 의해 발생한 장덕리-삼교리 일대 산사태의 특징

조용찬,이춘오,김경수,채병곤,김원영,송영석 대한지질공학회 2005 대한지질공학회 학술발표회논문집 Vol.2005 No.-

요골동맥을 이용한 관상동맥 조영술시 Tiger Catheter의 임상적 유용성

조용찬,반재성,김종태,노명주,정안덕,조상철,강원유,황선호,김완,김원 대한심장학회 2009 Korean Circulation Journal Vol.39 No.1

The most important complications of the transradial coronary approach during coronary artery angiography are occlusion of the radial artery and arterial spasm which are known to be influenced by catheter size, procedure time, and repeat procedures. The purpose of this study was to evaluate the usefulness of a Tiger catheter (TC) which was designed for the selection of right and left coronary artery ostia simultaneously, compared with the Judgkins catheter (JC) during transradial coronary angiography (CAG). Subjects and Methods: One hundred forty-four patients were randomized between groups who underwent CAG with a standard 5F JC or a TC. The procedure time and vasospasm of the radial artery, which were expressed as stenosis of the vessel diameter, were examined using a transradial approach. Four parts of the blood vessel diameter were measured at baseline, during injection of the vasodilator, and at the end of the procedure. Results: There were no significant differences in gender, age, weight, or other cardiovascular risk factors between the two groups of patients. CAG was successfully performed using a TC in 89% of the patients. A TC was associated with a significantly shorter total procedure time than the JC for diagnostic CAG (451±120.4 vs. 542.3±180.5 sec, p=0.001), respectively. There was no significant difference in stenosis between the two groups (36% vs. 41% in TC and JC, respectively, p= 0.358). There were no angiographic or clinical complications in each group. Conclusion: This study showed that the TC is associated with decreased total CAG procedure time compared with the JC. 배경 및 목적 시술 후 중요한 합병증으로 요골동맥의 폐쇄가 보고되고 있으며, 이는 카테터의 크기, 시술시간, 요골동맥의 반복시 술이 영향을 미치는 것으로 알려져 있다. TC는 좌우 관상 동맥을 하나의 카테터로 조영할 수 있게 도안되었다. 본 연 구는 진단적 관상동맥 조영술시 기존의 2개의 JC와 TC의 단 독 사용시 시술시간 및 요골동맥의 혈관확장과 연축의 유무 에 미치는 영향을 비교, 분석하고자 하였다. 방 법 요골동맥을 이용하여 관상동맥 조영술을 시행한 환자 144 명을 JC와 TC를 사용한 두 군으로 나누었다. 도관의 크기는 5 Fr로 일정하게 하였으며, 요골동맥의 연축여부는 요골동맥 의 근위부와 중간분절에서 총 4곳의 혈관 직경을 혈관확장 제 투여후와 검사 종료시 각각 측정하여 비교하였다. 시술시 간은 요골동맥을 통하여 Judgkins 카테터 또는 Tiger 카테 터 삽입 시점부터 관상동맥 조영술 후 도관 제거 바로 전까지 의 시간으로 정의하였다. 일차종결점은 시술시간으로 하였다. 결 과 양 군 간의 성별, 나이, 신장, 체중, 체질량지수, 관상동맥질 환의 위험인자의 차이는 없었다. Tiger 도자 사용시 약 89% 의 환자에서 좌우 관상동맥 조영술이 가능하였다. 각 군간 의 시술시간은 TC군이 451.0±120.4초, JC군이 542.3± 180.5초로서 TC군에서 JC군과 비교하여 유의하게 짧은 시 술시간을 보였다 (p=0.01). 또한 TC군이 시술종료 때까지 혈관확장 및 연축발생 비율도 양호한 경향을 보였지만, 유 Yong Chan Cho, et al.·15 의한 차이는 없었다. 결 론 TC를 사용한 요골동맥 관상동맥 조영술시 시술시간을 감 소시킬 수 있었으며, 양호한 성공률을 보였다.

스포츠용품 브랜드 선호도에 따른 효과적인 매출증대 방안

조용찬 한국체육과학회 2006 한국체육과학회지 Vol.15 No.2

There were four methods in selling sports shoes. Wholesales channel which is lately surging up belongs to these methods. The purpose of this study was that we looked into which brand the consumers prefered according to gender and age in the field of sports equipment which belongs to sports industry. We also had to think about why they bought the sports shoes with special brand. And we'd like to suggested the plan effective sales growth in related to brand preference of sports equipment by the advertisement. According to the survey(in the base of Chi-Square) of 1,036 male and female consumers in their 10s and 30s who were using ABC-Mart located in M-Dong in Seoul we had got following results. 1. In the case of the brand company which producted and sells sports shoes, the company should try to let consumers choose its brand using effective target-marketing which met the character of gender and age. 2. Most consumers tended to choose the brand taking design and quality of sports shoes into consideration when they bought sports shoes. The brand company should develop unique design which most consumers could be satisfied with and improve the quality of sports shoes for its sales growth.3. The twenty-first century is technetronic. The brand company should know how consumers feel about its brand. It should also investigate why they pursued the special brand. And then it should find out how to advertise its brand to increase sales.

요골동맥을 이용한 관상동맥 조영술시 고용량 Nicorandil의 요골동맥 확장 및 임상적 효과

조용찬,김원,김종태,정안덕,조상철,강원유,황선호,김완 대한심장학회 2008 Korean Circulation Journal Vol.38 No.4

Background and Objectives: A spasm of the radial artery is one of the most common complications of coronary angiography (CAG) via the transradial approach (TR), and this spasm sometimes disturbs the procedure. Nicorandil has recently shown dose-dependent dilatation of the blood vessels and ischemic preconditioning. This study was designed to evaluate the clinical effects and radial artery vasodilation of high dose nicorandil solution during CAG via the radial artery. Subjects and Methods: This study was a prospective, randomized study to compare the effects of 12 mg of nicorandil (the Nicorandil group) and 10 mL of a cocktail solution (nitroglycerine 200 μg mixed with verapamil 100 μg) (the Cocktail group) in 146 patients. Vasospasms, which were expressed as the stenosis of the radial artery were examined at 2 parts of the radial artery. Results: There were no significant difference of gender, age and risk factors for the 2 groups of patients. The reductions in the systolic and diastolic blood pressure (BP) 1 minute after drug administration were 33.6±11.4/10.4±7.7 mmHg in the Nicorandil group and 12.8±9.8/3.8±5.3 mmHg in the Cocktail group (p<0.001). Both vasodilating agents showed significant radial artery vasodilation after administration of the drugs (p<0.005 for all). The minimal luminal diameter (MLD) after drug administration was more dilated in the Nicorandil group than that in the Cocktail group (0.63±0.25 mm vs. 0.48±0.19 mm, respectively, p=0.013). Conclusion: Nicorandil solution was more effective for inducing vasodilation of the radial artery, but it was not clinical superior to the cocktail solution. Background and Objectives: A spasm of the radial artery is one of the most common complications of coronary angiography (CAG) via the transradial approach (TR), and this spasm sometimes disturbs the procedure. Nicorandil has recently shown dose-dependent dilatation of the blood vessels and ischemic preconditioning. This study was designed to evaluate the clinical effects and radial artery vasodilation of high dose nicorandil solution during CAG via the radial artery. Subjects and Methods: This study was a prospective, randomized study to compare the effects of 12 mg of nicorandil (the Nicorandil group) and 10 mL of a cocktail solution (nitroglycerine 200 μg mixed with verapamil 100 μg) (the Cocktail group) in 146 patients. Vasospasms, which were expressed as the stenosis of the radial artery were examined at 2 parts of the radial artery. Results: There were no significant difference of gender, age and risk factors for the 2 groups of patients. The reductions in the systolic and diastolic blood pressure (BP) 1 minute after drug administration were 33.6±11.4/10.4±7.7 mmHg in the Nicorandil group and 12.8±9.8/3.8±5.3 mmHg in the Cocktail group (p<0.001). Both vasodilating agents showed significant radial artery vasodilation after administration of the drugs (p<0.005 for all). The minimal luminal diameter (MLD) after drug administration was more dilated in the Nicorandil group than that in the Cocktail group (0.63±0.25 mm vs. 0.48±0.19 mm, respectively, p=0.013). Conclusion: Nicorandil solution was more effective for inducing vasodilation of the radial artery, but it was not clinical superior to the cocktail solution.

강릉시 주문진읍 장덕리-삼교리 일대의 산사태 예측도 작성

조용찬,김경수 대한지질학회 2006 대한지질학회 학술대회 Vol.2006 No.