디지털 광 조명 방식으로 제작한 임시 크라운의 세척 시간에 따른 3차원 적합도 평가

이범일,유승규,유승민,김지환 대한치과기공학회 2020 대한치과기공학회지 Vol.42 No.4

Purpose: This study aimed to compare three-dimensional adaptation with the rinsing time of the temporary crown produced using the digital light processing method. Methods: The maxillary right first molar abutment was scanned with a dental scanner. A temporary crown was designed with the scanned abutment. The designed crown was made of 10 temporary crowns using a digital light processing printer. The crowns were divided into the 5-minute and 10-minute rinsing groups; 5 temporary crown washes were performed for each group. In order to obtain the internal data, each group was scanned for a temporary crown. The three-dimensional fit was measured by superimposing the scanned internal surface data and the abutment data. The average comparison of three-dimensional adaptation was analyzed using the Mann–Whitney U test. Results: The 5-minute rinsing group showed a significantly higher adaptation of 71.42±3.08 μm as compared to the 10-minute rinsing group (67.52±0.92 μm) (p<0.05). Conclusion: When making a temporary crown with a digital light processing method, a rinsing time of 10 minutes is appropriate.

A Parallel Algorithm and Duality for a Fuzzy Multi-Objective Linear Fractional Programming Problem

이범일,정남기,차동완 한국경영과학회 1991 한국경영과학회 학술대회논문집 Vol.- No.1

식생활 라이프스타일에 따른 가정간편식(HMR) 상품의 편의성과 음식품질이 구매의도에 미치는 영향

이범일,김선희 한국외식경영학회 2019 외식경영연구 Vol.22 No.2

본 연구는 외식 소비자의 식생활라이프스타일에 의한 HMR 이용 시, HMR 상품의 편의성과 음식품질이 구매의도에 어떠한 영향을 미치는지 분석하고자 한다. 본 연구의 주요결과로는 첫째, 식생활 라이프스타일에 따른 유형으로 건강지향, 안전지향, 가치지향, 미식지향, 호기심지향으로 추출되었으며 HMR 상품의 편의성에 건강지향, 안전지향, 가치지향, 미식지향, 호기심지향은 모두 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 식생활 라이프스타일이 HMR 상품의 음식품질에 미치는 영향을 검증한 결과 건강지향, 안전지향, 가치지향, 미식지향, 호기심지향은 모두 정(+)의 영향을 미치는 것으로 나타났다. 셋째, HMR 상품의 편의성 및 음식품질이 구매의도의 미치는 영향을 검증한 결과 편의성과 음식품질이 모두 정(+)의 영향을 미치는 것으로 나타났다. 또한 식생활 라이프스타일의 건강지향, 안전지향, 가치지향, 미식지향, 호기심지향이 구매의도에 무두 정(+)의 영향을 미치는 것으로 나타났다. 이러한 HMR 상품에 대한 긍정적인 결과는 향후 고객의 신뢰 및 충성도로 이어질 수 있으며 HMR 관련 연구에서 소비자 행동을 파악하는 마케팅의 수단으로서 활용될 수 있다고 사료되어진다. This study aims to analyze how convenience and quality of food products of HMR affect the purchasing intention when using HMR with the dietary life style of dining out consumers. The main results of this study are health, safety, value, gastronomic, curiosity-oriented, and health-oriented, safety-oriented, value-oriented HMR products. Second, it was found that health, safety, value, gastronomic, curiosity-oriented, etc. all affect the quality of food of HMR products. Third, HMR products' convenience and food quality's impact on purchase intent were verified and both convenience and quality of food had positive effects. It was also found that the health, safety, value, taste, and curiosity of the lifestyle affected the buying intention. The positive results for these HMR products may lead to future customer confidence and loyalty and may be used as a marketing tool for understanding consumer behavior in HMR-related studies.

열 가압 방식을 사용하여 제작된 인레이 세라믹 수복물의 적합도 평가

이범일,유승규,유승민,박동인,김지환 대한치과기공학회 2020 대한치과기공학회지 Vol.42 No.1

Purpose: The purpose of this study was to compare the marginal and internal fit of lithium disilicate ceramic inlay produced by heat pressing that inlay pattern made by subtractive manufacturing and additive manufacturing method. Methods: A mandibular lower first molar that mesial occlusal cavity (MO cavity) die was prepared. After fabricating an epoxy resin model using a silicone impression material, epoxy resin die was scanned with a dental model scanner to design an MO cavity inlay. The designed STL pile was used to fabricate wax patterns and resin patterns, and then lithium disilicate ceramic inlays were fabricated using hot-press method. For the measurement of the marginal and internal gap of the lithium disilicate, silicone replica method was applied, and gap was measured through an optical microscope (x 80). Data were tested for significant differences using the Mann-Whitney Utest. Results: The marginal fit was 103.56±9.92μm in the MIL-IN group and 81.57±9.33μm in the SLA-IN group, with a significant difference found between the two groups (p<0.05). The internal fit was 120.99±17.52μm in the MIL-IN group and 99.18±6.65μm in the SLA-IN group, with a significant difference found between the two groups (p<0.05). Conclusion: It is clinically more appropriate to apply the additive manufacturing than subtractive manufacturing method in producing lithium disilicate inlay using CAD/CAM system.

半期利益情報의 有用性에 관한 硏究

李範一 혜전대학 1988 論文集 Vol.7 No.-

This study covers the usefullness of profit and loss information for the enterprise and/or the general investor with emphasis on the public notice date of semiannual profit and loss in order to verify the usefulness of the profit and loss information which accompanies the public notice of the semianual examination report of the stock-listed corporation. In the financial policy of the enterprise involved in financial tech, it has been proved that viewed from capital market trend, the enterprise, in its fund raising aspect, seeks to promote improvement of its financial structure by means of direct money raising, such as corporation's public offering of stocks, credit stock watering and convertible debenture, and on the other hand, in its asset operating aspect, the enterprise takes it as a means of maximizing its profit to concentrate on non-business profit by refunding highinterest loan for the less cost and stable fund raising by considering synthetic aspects of domestic issue markets or differences of money interest rates home and abroad, Won currency appreciation and adjustment of the foreign exchange rates. As a result of application of the Beaver's model to this case, the balance difference rates of the earning rates proved the usefulness of the semiannual profit and loss information in comparison of weekly balance differences of circulating rates of transaction amount during the report period non-report period. However, the following limitation can be pointed out:Firstly, in sampling, the 20 random samples taken in 1986 each are considered as the base value to evaluate the population. Secondarily, the result of application of the Beaver's modelonly to the usefulness of semiannual profit and information showed its limitation. Thirdly, there might be a case where some factors other the effectiveness of public notice made after grasping the semiannual profit and loss information only in the capital market may be brought up efficiently, or timely problem may be raised whether the semiannual profit and loss information is conveyed to all the interested parties immediately.

配當所得에 對한 課稅 硏究

李範一 혜전대학 1984 論文集 Vol.2 No.-

[수정기사] 디지털 광 조명 방식으로 제작한 임시 크라운의 세척 시간에 따른 3차원 적합도 평가

이범일,유승규,유승민,김지환,Lee, Beom-Il,You, Seung-Gyu,You, Seung-Min,Kim, Ji-Hwan 대한치과기공학회 2021 대한치과기공학회지 Vol.43 No.2

企業合倂과 관련된 會計處理硏究 : 合倂會計準則을 中心으로

李範一 혜전대학 1996 論文集 Vol.14 No.-

The business combination is executed in accordance with the related laws and regulations, and the accounting theory has to be restricted by the positive law, but the conbination is the economic matter which affects largely the economic policy, and the influence which affects the economic structure ic immence. This study sought for the method of accounting treatment on the basis of the theory of purchase and the common share in the essence of accounting, and examined the cases of various countries, and studied the combination procedure and the method of accounting treatment through the examination of literatures, and presented the theory of combination and the measures of settlement arising from the aspect of practical business, and analized the effect in detail, and the result is because of the detect of legal procedure on the business combination without any mediation could bring the change of stock price due to the reason for annulment of combination, and the interpretation of provisions is difficult and unprovided, and the principles of combination accounting is contrary to the correct financial contents and reasonable calculation, and the writer could confirm that it showed the estrangement trom accounting situation through the analysis of true condition. Relating to the effect of the positive law of combination, the betterment measure of the related regulations and the principle of business accout are seeked for as below. 1. The assets and debts succeeded should be evaluated with the official price, and the combined assets and debts should be, In case of certain scope of combination, elevated the usability of financial information which reserves the business which is the object of Law Regulating Reduction of Tax. 2. The net assets delivered should be evaluated with the official price in principle, and all the accouts except for the tangible fixed assets and deferred accounts are based on the principle of acguisition cost price, and it is contradictory, and the succession of dividend of retirement payment is contradictory to the tax law, the basic principle, and the standing rule. 3. The business right is not calculsted the excessive earning power, but in case of paying excessively the net assets price, and it is acknowledged as the business right, and it commits an error not to classify whether it is the combination balance or business right. Therefore, the rule regulating it is the combination balance or business right should be firmly established.

의약품 연구원의 법제화 방안

이범진 한국에프디시규제과학회(구 한국에프디시법제학회) 2010 한국에프디시법제학회 학술대회 Vol.2010 No.1

이온종에 따른 알지네이트 비드로부터 멜리토닌 방출

이범진 강원대학교 종합약학연구소 1995 약학연구 Vol.8 No.-