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      • SCOPUSKCI등재

        팔라듐 촉매를 이용한 Vinylmercuric-chlorides 의 CO 첨가 호모커플링반응

        김진일,이광혁,KimJin-Il 김진일,Kwang-Hyek Lee 대한화학회 1989 대한화학회지 Vol.33 No.6

        팔라듐 촉매를 이용한 vinylmercuric chlorides의 CO 첨가반응과 커플링반응을 동시에 진행시키는 CO 첨가 호모커플링반응을 실시하여 대칭 디비닐케톤 또는 디비닐 ${\alpha}$-디케톤을 비교적 좋은 수득율로 얻었다. 디비닐케톤과 디비닐 ${\alpha}$-디케톤의 최적 합성조건을 규명하기 위하여 여러가지 vinylmercuric chlorides의 대표적인 모델로서 (E)-styrylmercuric chloride를 선택하여 촉매의 종류 및 그의 양, 염기, 용매 및 반응온도 등의 조건에 따른 수득율의 변화를 조사하였다. 촉매로 10mol%의 dichlorobis(triphenylphosphine)palladium(II), 염기로 등몰의 Pyridine, 10mol%의 요오드 및 10기압의 일산화탄소 존재하에, acetonitrile 용매 중 50${\circ}$C에서 반응시켜 가장 좋은 수득율로 디비닐 ${\alpha}$-디케톤이 얻어졌으며, 상압의 일산화탄소와의 반응에서는 낮은 수득율로 디비닐 ${\alpha}$-디케톤을 얻었다. Symmetrical divinyl ketone or divinyl ${\alpha}$-diketone was synthesized in moderately good yields through palladium catalyzed carbonylative homocoupling reaction of vinylmercuric chlorides with carbon monoxide. In order to find out optimum synthetic reaction conditions, we examined the effect of catalysts, bases, solvents and reaction temperature when (E)-styrylmercuric chloride was used as a typical starting material. The best yield of divinyl ${\alpha}$-diketone was obtained in the reaction using 10 mol% of dichlorobis(triphenyl phosphine)palladium (II) as a catalyst, an equivalent of pyridine as a base, 10 mol% of iodine and acetonitrile at 50${\circ}$C under 10 atmospheric pressure of carbon monoxide. The yield of divinyl ${\alpha}$-diketone was decreased under atmospheric pressure of carbon monoxide.

      • KCI등재

        Research on the Influence of Korean-designed Masks and Country Image on Chinese Consumers' Purchase

        김진일,최유화 사단법인 한국조형디자인협회 2020 조형디자인연구 Vol.23 No.4

        This study investigates the relationship between Chinese consumers' perception of trusting beliefs, country image, product beliefs, and purchase intention regarding Korea and Korean-designed masks according to their inherent risk to COVID-19 exposure. An online survey was conducted to collect 400 responses from August 10–30, 2020. Data was used to statistically analyze the relationship between variables by implementing confirmatory factor analysis and the structural equation modeling test. All three dimensions of trusting beliefs (competence, benevolence, and integrity) have positive effects on the country image of Korea, with benevolence exhibiting the strongest effect among them. Country image with Korea has a positive effect on product beliefs and purchase intention of Korean-designed masks. Product beliefs also influenced purchase intention. Moreover, product beliefs has a partial mediation effect between country image and intention to purchase. In sum, the higher the trusting beliefs about Korea, the higher the intention to purchase Korean-designed masks. This research improves our theoretical understanding of foreign product purchasing behavior and provides a basis for mask product and brand managers to work with the government and organizations for enhanced mutual effectiveness.

      • SCOPUSKCI등재

        위절제술의 수술 방법에 따른 소장 ·(위)식도 역류 : 24 시간 보행성 식도내 빌리루빈 검사 24 Hour Esophageal Bilirubin Monitoring

        김진일,정인식,이윤복,최명규,선희식,박두호,한석원,방춘상,원용성,박우배 대한소화기학회 1999 대한소화기학회지 Vol.33 No.2

        Background/Aims: Acid and pepsin is well known to induce esophageal mucosal injury, but the role of small intestinal(gastro)esophageal reflux in causing esophageal mucosal injury is unclear. In the patients who had received gastrectomy, the removal of pylorus allows the reflux of duodenal contents into a smaller gastric remnant. Therefore, small intestinal(gastro)esophageal reflux has been implica ted as the cause of esophagitis in gastrectomized patients. The aim of this study was to assess th differences of the small intestinal(gastro)esophageal reflux in patients who received various types of gastrectomy. Methods: We examined the esophageal symptoms, endoscopy and 24 hour ambulatory esophageal bilirubin monitoring in 6 healthy subjects as control and 34 gastrectomized patients (10 Billroth I, 14 Billroth II, 10 total) due to stomach cancer. Results: The esophageal symptoms and pathologic bile reflux were observed more frequently in the patients who received Billroth II and total gastrectomy than in patients who received Billroth I gastrectomy. Endoscopic esophagitis was more frequent in patients of Billroth II group than the patients of Billroth I group. All patients who had esophagitis or positive symptom index during examination showed pathologic bile reflux. Conclusions: The $quot;alkaline reflux$quot; including pathologic bile reflux and endoscopic esophagitis was observed more frequently in patients who received Billroth II gastrectomy than in patients who received Billroth subtotal gastrectomy. (Kor J Gastroenterol 1999;33:153 - 161)

      • SCOPUSKCI등재

        결핵성 림프절염에 의한 담관 폐쇄 및 문맥압항진증 1 예

        김진일,김영수,양진모,이정민,김선명,송동섭,박두호,박진노,장은덕,방춘상,권낙기,오귀염 대한소화기학회 1999 대한소화기학회지 Vol.33 No.3

        Common causes of biliary tract obstruction are mostly choledocholithiasis and neoplastic diseases. Enlargement of adjacent lymph nodes due to malignant tumors or lymphoma can occasionally ob struct the biliary duct, but obstructive jaundice and portal hypertension produced by periportal tuber culous lymphadenitis are quite rare. Its diagnosis is difficult because symptoms and signs are non specific and clinical tests are not conclusive. Additionally, the lesion mimic a malignancy clinically and radiologically. However, it is important to differentiate it from malignancy. We describe a patien who presented with jaundice and portal hypertension caused by biliary obstruction due to tuberculous lymphadenitis involving distal portion of the common bile duct.

      • KCI등재후보

        정부지원 과제의 시스템엔지니어링 적용 교훈 : 사례 연구

        김진일,염충섭,신중욱 한국시스템엔지니어링학회 2019 시스템엔지니어링학술지 Vol.15 No.2

        The systems engineering standard process is intended to be customized for a given project environment and system characteristics. This study describes the experience gained by applying systems engineering to government-funded projects. The characteristics of government funded project are lack of common development process among the participating organizations and mechanism to determine system requirements. This study describes the contents of the systems engineering activities, including development of operational concept, system requirements, verification requirements (test cases), test verification plan, and implementation of system test and lessons learned from these activities.

      • KCI등재

        성인 상완골 과간골절의 치료결과에 대한 비교

        김진일,강경훈,이계성,오국환,윤형구 대한골절학회 1995 대한골절학회지 Vol.8 No.1

        The intercondylar fracture of distal humerus in adult is difficult to treat. Because it is difficult to obtain accurate anatamical reduction and rigid internal fixation due to commiution and intraarticular components. The authors review the 13 cases of intercondylar fracture of the distal humerus in adult that were treated at the orthopaedic department of Sung Ae Hospital, from JAN 1988 to JUN 1992, and the result are as follows: 1. It was frequently occured in 3rd and 4th decades active male and old female over 60 years old. 2. We think that cast hinge elbow brace is recommendable method for improvement of elbow ROM through early active motion. 3. For accurate anatomical reduction and rigid internal fixation, transolecranon appmach is recommended for the sufficient exposure of the articular surfece.

      • KCI등재후보

        플랜트 EPC 사업을 위한 구매 엔지니어링 관리 지원 시스템 개발

        김진일,염충섭,신중욱 대한기계학회 2020 기술과 교육 Vol.8 No.1

        Purchasing engineering is the activity of preparing a material requisition document for equipment and checking whether the contents of the material requisition document are satisfied by vendor data. In the plant's EPC business, the purchase of equipment is a very important task that affects the plant's performance and the schedule and cost of the project. In the meantime, the creation of purchase specifications has generally relied on the experience of personnel without the help of formal processes or software. In addition, there is no software to support whether the contract is well reflected in the material requisition document and whether the contents of the material requisition document are well reflected in the vendor data. In this paper, we introduce the core functions of the PeMSS (Procurement Engineering Management Support System). 구매 엔지니어링이란 기자재의 구매 사양서를 작성하고, 구매 사양서의 내용이 공급자 데이터에 의해 만족되었는지 확인하는 활동이다. 플랜트의 EPC 사업에서 기자재의 구매는 플랜트의 성능과 사업의 일정 및 비용에 매우 중요한 영향을 미치는 업무이다. 그 동안 구매 사양서의 작성은 일반적으로 정형화된 프로세스나 소프트웨어의 도움 없이 담당자의 경험에 의존해왔다. 또한 계약 사항이 구매 사양에 잘 반영되었는지, 구매 사양의 내용이 공급자 데이터에 잘 반영되었는지 지원하는 소프트웨어가 부재한 상황이다. 본 논문에서는 이러한 상황에 대처하기 위해 개발 중인 구매 엔지니어링 관리 지원 시스템(PeMSS: Procurement Engineering Management Support System)의 핵심 기능을 소개하고자 한다.

      • KCI등재

        소아 요골 골두 및 경부 골절에 대한 치료

        김진일,강경훈,오국환,윤형구,이종화 대한골절학회 1996 대한골절학회지 Vol.9 No.3

        Fracture of radial head and neck in children is a relatively rare injury and comprises 5 to 10 percent of fractures of the elbow in children. Its prognosis has been considered relatively good, but prognosis is poor in severely displaced fractures of the rsdial head and neck, especially types II and III by O'Briens classification and have a high risk of complication. We retrospectively reviewed 8 cases of radial head and neck fractures in 7 patients, who were treated from Jan. 1992 to June l994 at Kwang Myung Sung Ae Hospital. They were followed up for more than I year. The results were as follows; 1. There were 4 male and 3 female patients. One patient had bilateral involvement. 2.The most common cause was fall down injury (6 cases). 3.According to O'Brien's classification, 3 cases were type I and 5 cases were type II Treatments included simple immobilization (3 cases), closed reduction and plaster cast (4 cases), percutaneous K-wire leverage method (1 case). 4.According to the criters of Tibone, the clinical result was excellent in 7 cases and good in l case. Primary angulation was the most important factor affecting the result and early closed reduction was important to obtain the satisfactory clinical result.

      • KCI등재
      • SCOPUSKCI등재

        위선종과 조기위암에서 투명캡을 이용한 흡인점막절제술의 임상적 유용성 평가

        김진일,이강문,정인식,방춘상,박두호,이동수,김성수,김상우,송호진,성용직,한석원,양영상,최규용,왕준호 대한소화기내시경학회 2000 Clinical Endoscopy Vol.21 No.3

        Background/Aims: Endoscopic aspiration mucosectomy (EAM) can always lift up the lesion by suction regardless of its location and does not injure the mucosal surface. The clinical usefulness of this method was evaluated as follows. Methods: Thirty two patients with gastric adenoma (35 lesions) and 6 patients with early gastric carcinoma were treated by EAM from March 1997 to February 1999. Their characteristics (diameter, macroscopic appearance, and histologic diagnosis) were verified at endoscopy with a biopsy specimen. The complete resection was defined as the presence of normal mucosa at the resected margin. Results: The average size of the resected specimens was 17.8 mm in antrum and 16.5 mm in body. The ratio of complete resection by location was 67% in anterior wall, 88% in posterior wall, 86% in lesser curvature and 92% in greater curvature. The complete resection rate for smaller lesions (≤15 mm) was highly distinguished from that cf larger lesions (>15 mm). No serious complication was encountered. Coclusions: EAM is suitable for the treatment of gastric tumors. Lesions 15 mm or less in diameter can be resected easily by single procedure regardless of its location.

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