광중합(光重合) 레진의 경도측정(硬度測定)에 관(關)한 연구(硏究)

이명종,Lee, Myung-Jong 대한치과보존학회 1989 Restorative Dentistry & Endodontics Vol.14 No.1

The purpose of this study was to measure Micro vicker's hardness of 4 kinds of anterior Composite resins (Pyrofil light bond anterior, Lite-fil anterior, Photo clear fil anterior, Silux) and 6 kinds of posterior Composite resin (Pyrofil light bond posterior. Lite-fil posterior, Photo clear fil posterior, Occlusin posterior, Palfique light posterior, P-30, posterior) according to deference of depth and distance of light tip from surface of composite resin. Each composite resin was filled into Teflon tube of 5mm in diameter and 5mm in depth, celluloid matrix was covered and the light in accordance with each composite resin was irradiated in distance of zero millimeter and 1 cm from light tip to surface of composite resin for 30 seconds. Specimens were sectioned longitudinally with cutting device. Microvicker's hardness measurements ware made at the depth of surface, 1mm, 2mm, 3mm, 4mm and 5mm from the surface to deep portion. Vicker's hardness numbers were taken on each depth under 200gm load for 30 seconds with MVK-E. The following results were: 1. The highest hardness value was measured at 1 mm depth. Then the deeper the depth, the lesser the hardness was observed. 2. The hardness value of anterior composite resins is lower than one of posterior composite resins. 3. Hardness number of composite resin irradiated in distance of zero millimeter from surface of composite resin was higher than one of 1 cm from surface of composite resin. 4. The pattern of hardness change at varying depth was similar to all the experimental material with no relation to distance of light from specimen.

EDTA의 근관세척효과(根管洗滌效果)에 관(關)한 주사전자현미경적(走査電子顯微鏡的) 연구(硏究)

이명종,김영해,Lee, Myung-Jong,Kim, Yung-Hai 대한치과보존학회 1983 Restorative Dentistry & Endodontics Vol.9 No.1

The purpose of this study was to observe the effect of cleansing action of irrigation solutions which was 3% $H_2O_2$ and 5% NaOCl, and 15% EDTA solution on the root canal wall. After treatment with the irrigant, each sample was dehydrated, and coated with 200~250${\circ}$A of gold, and observations were made with the use of scanning electron microscope. The results were as follows: 1. In the root canal walls irrigated with 3% $H_2O_2$ and 5% NaOCl solution without instrumentation after extirpation through barbed broach, the predentin of root canal wall was found scarely affected, and the wall was shown retaining network structure and fibrous organic matters. 2. When 15% EDTA was applied as irrigants for 60, 90 and 120 seconds after instrumentation, there was no signigicant difference of the cleansing effect of the elapsed times which were 90 and 120 seconds on the root canal wall, but in the applied time which was 120 seconds, the canal wall was the cleanest. Therefore it was thought that the most suitable application time of 15% EDTA as the irigants was 120 seconds.

식민지 대만과 조선의 「호구조사규정」 제도 비교연구

이명종(LEE Myung-jong) 한국근현대사학회 2021 한국 근현대사 연구 Vol.96 No.-

일제는 식민지 대만인과 조선인을 지배하기 위해 경찰취체상의 필요한 인적 정보를 담은 호구조사부(대만은 경우는 호구조사부부)를 제작하여 관리하는 제도인 ｢호구조사규정｣을 실시했다. 식민지 대만에서는 1903년, 1905년부터 본격적으로 시행했고, 식민지 조선에서는 1916년부터 시행하여, 각각 1920년대와 1930년대에 여러번 개정을 거쳐서 일제 말기까지 이어갔다. 이 기간에 1개월, 3개월, 또는 6개월간격으로 모든 대만인과 조선인들에 대하여 가족관계, 재산정도, 직업여부, 사상경향, 성품과 행실, 병역관계 등에 관해 조사하고, 이에 기초해 주민을 2~3등급으로 분류하여 호구조사부(호구조사부부)에 기재하고 경찰상 필요한 자료로 삼았던 것이다. 특히 전과자, 형사시찰자, 성행이 불량한 자, 경찰상 특별한 주의를 요하는 자등의 요시찰인에 대해서는 사찰을 집중하여 매달 1회 이상을 감시했다. 식민지대만과 조선의 ｢호구조사규정｣은 차이점도 적지 않았다. 대만의 제도는 주민을 구분하는 방식이나 조사의 기한과 횟수, 호구조사부 기재방식에서 조선보다 더 세밀하고강력했다. 이런 가운데 ‘병역관계’의 조사가 이루어진 시기는 조선이 대만보다 빨랐는데, 조선에서는 1927년부터 시작되었지만, 대만에서는 1935년부터 시작되었다. 대만의 호구조사부부와 조선의 호구조사부는 양식에서도 큰 차이가 있었다. 대만의호구조사부부는 결과적으로 신분 공증과 경찰취체라는 두 기능을 가진 양식이었고, 조선의 호구조사부는 처음부터 경찰취체를 주목적으로 한 양식이었기 때문이었다. 종합해 보면, 식민지 대만과 조선의 ｢호구조사규정｣은 지배 권력이 주민을 재산, 직업, 사상, 성품, 행실 등을 기준으로 분류하고 통제하는 역할을 수행한 제도였다. Imperialist Japan had enforced the Resident Survey Regulations to create ‘Resident Survey Registers’ containing residents’ personal informations for dominating the colonial Taiwanese and Koreans. The Resident Survey Registers contained information on family relations, wealth, job status, ideological trends, personality and behavior, military service relations, etc. of all Taiwanese and Koreans. Based on this, the residents were classified into 2-3 grades and used as necessary data for the police supervision. In particular, the inspection was concentrated and monitored more than once a month for those who required special attention, such as ex-convicts, knave, and those requiring special attention from the police. The differences of the ‘Resident Survey Registers’ between colonial Taiwan and Korea were several. In Taiwan, the two purposes of identification and police supervision were mixed, but in Korea, the main purpose was to consistently set up police supervision. The reason for this was that although the identification system was not separately implemented in Taiwan, it was implemented in Korea. Nevertheless, Taiwan’s system was more detailed and more powerful than Korea in the way it classified residents, the number of surveys, and the method of registration. Among these, when the ‘military service relations’ were investigated, Korea was faster than Taiwan. There was also a big difference in the style of the Resident Survey Registers in Taiwan and Korea. Because the Resident Survey Registers in Taiwan had two functions: notarization of identity and police supervision. In summary, the Resident Survey Regulations of colonial Taiwan and Korea were systems in which the government power played a very important role in capturing them into their own governance system by classifying and controlling the inhabitants based on property, occupation, ideology, and behavior.

Signature Analyzer를 개선한 고장진단기 구현의 한 방법

이명종(Myung Jong Lee) 한국정보과학회 1983 정보과학회논문지 Vol.10 No.4

최근 설계방식의 경향은 LSI 등의 복잡한 구조의 프로그램이 가능한 소자 사용이 주목되고 있는바 그 대표적인 것이 마이크로프로세서로써 이를 사용한 시스템은 여러 가지 이유로 고장진단상의 난점이 많다. 본 논문에서는 마이크로프로세서를 사용하여 부품레벨의 고장진단을 위해 종래의 Signature Analyzer를 개선, 간단하며 우수한 기능의 고장진단기를 실현하였다. Current design trends emphasize the use of programmable complex component and the key component is microprocessor. Such microprocessor based systems are difficult to test for several reasons. Improving the general signature analyzers, a fault location system for component level is proposed and realized. And the proposed system is proved to be simple and powerful compared to foregoing signature analyzers.

비만인의 정서적 문제에 관한 문헌적 고찰

지명철 ( Myung Chul Jee ),이명종 ( Myeong Jong Lee ) 한방비만학회 2003 한방비만학회지 Vol.3 No.1

Objective: The purpose of this study is to investigate the emotional troubles of the obese and their`s relationship with obesity so as to be useful for treating the obesity and estimating it`s prognosis. Method: This study investigates the fifteen statistical treatises for the emotinal troubles of the obese, and distributes their`s results into depression, perception of obesity, satisfaction of body shape, eating behavior, and other emotional troubles. Conclusions: 1. In the obese dissatisfaction and inferiority complex for body shape are one of the causes bring about depression. 2. Masked depression is often, so exact examination is needed and the treatment of depression is useful for treating the obesity and estimating it`s prognosis. 3. In the obese correcting wrong body shape image and making them gain confidence in treatment of obesity is needed because they have low self-efficacy in overeating, high perception of obesity, and dissatisfaction of body shape. 4. The obese has a abnormal eating behavior and it is related with the emotional troubles such as depression, low seif-esteem, and so forth.

상아질(象牙質)의 산부식(酸腐蝕)이 치수조직(齒髓組織)에 미치는 영향(影響)에 관(關)한 실험적(實驗的) 연구(硏究)

정세준,이명종,Chung, Se-Joon,Lee, Myung-Jong 대한치과보존학회 1988 Restorative Dentistry & Endodontics Vol.13 No.1

The purpose of this study was to investigate the pulpal responses to acid etching of dentine. Total 72 class V cavaties' were prepared on the healthy permanent teeth from 6 dogs, and were divided into 4 groups. These were filled with filling materials after acid etching with each etchant for 1 min. Control group ; ZOE filling without acid etching. Group 1: Zinc Oxide-Eugenol cement filling. Group 2: Drying with hot air and Zinc oxide-Eugenol cement filling. Group 3: Scotchbond application and silux filling. Group 4: Silux filling. The dogs were sacrificed after 1 week, 2 weeks, 3 weeks, 4 weeks, 5 weeks and 6 weeks following operation. The specimens were routinely prepared and stained with Hematoxylin and Eosin. Followings were the results obtained through microscopic examination. 1. There was mostly severe pulpal responses in case of Silux filling after acid etching of dentine. 2. The pulpal responses of Silux filling after acid etching and application of Scotch bond group were more severe compared to Zinc Oxide-Eugenol cement filling group, but less severe compared to Silux filling group after acid etching of dentine. 3. The pulpal responses of Zinc Oxide-Eugenol cement filling group were similar to those of Zinc Oxide-Eugenol cement filling after drying with hot air group. 4. There was slight pulpal responses in early stage in case of Zinc Oxide-Eugenol cement filling group, but recovered to normal state soon after.

HPLC를 이용한 산조인(酸棗仁)의 수치(修治)에 따른 성분비교연구(成分比較硏究)

지명철 ( Myung Chul Jee ),금동호 ( Dong Ho Kum ),이명종 ( Myeong Jong Lee ) 대한한의학회 한방재활의학과학회 2000 한방재활의학과학회지 Vol.10 No.2

혁신성으로 구분된 두 소비자 집단에서 디지털컨버전스 제품의 구매요인 영향력 비교

주영진(Young Jin Joo),이명종(Myung Jong Lee) 한국경영과학회 2008 經營 科學 Vol.25 No.1

In this paper, we examined the difference of the effects of buying factors in two consumer segments divided by the innovative behavior for digital convergence products, and developed relevant managerial implications. As the digital convergence product could be understood as a innovative bundling product, the buying factors of the digital convergence products were clustered in 3 groups:common innovation-bundling factors, innovation factors and bundling factors. Tests for the difference of regression coefficients of the purchasing factors in the two markets show that ① the early market is affected by both of the common innovation-bundling factors and the innovation factors, while the mainstream market is affected by all of the common innovation-bundling factors, the innovation factors and the bundling factors, ② the early market is more affected by the technical benefit, while the mainstream market is more affected by the pragmatic benefit, and ③ both of the two markets are affected by the compatibility and the message communicability. The relevant managerial implications for the successive diffusion of the digital convergence products can include ① in the entire period of the diffusion, enhancing the compatibility between consumer and product concept, performing constant and differentiated marketing communication activities, ② in the early market of the diffusion, introducing unique innovative product which provides obvious and differential synergy through the convergence, appealing to the technical benefit, and ③ in the mainstream market of the diffusion, improving the qualities and features of individual products for the digital convergence product, appealing to the pragmatic benefit, reducing the complexity of product.

스포츠 活動時 發生한 足關節 捻挫의 診斷 및 治療

吳在根(Jae Keun Oh),李鳴鍾(Myung Jong Lee),金性洙(Sung Soo Kim) 대한한의학회 1992 대한한의학회지 Vol.13 No.2

문헌 : 체중조절 식이에서 탄수화물의 비중: 그 질과 양

김호준 ( Ho Jun Kim ),이명종 ( Myung Jong Lee ) 한방비만학회 2005 한방비만학회지 Vol.5 No.1

During last few decades dietary guidelines for the weight management mainly have focused on a low-fat, high carbohydrate diet. Carbohydrate was supposed to be low-dense, highly satiating as well as it affects little on the lipogenesis. Although low-fat diet has significant weight-reducing effect, the loss was modest and usually regained after cessation of the diet. Furthermore, low-fat, modest-carbohydrate diet did not impact on the ever increasing rates of overweight and obesity. Alternative approaches include low-carbohydrate diet, high-carbohydrate diet and low-glycemic index diet. Although none of above mentioned diet have sufficient evidence for standard weight management diet, short-term efficacy and safety are being approved continuously. Low-carbohydrate diet contains less than 45% of carbohydrate in daily energy consumption, it is claimed to have more satiating effect and to improve metabolism. However, low compliance due to the limitation of food choice should be considered on prescribing the diet. High-carbohydrate which contains 90% of carbohydrate in total daily energy consumption, is effective in providing satiety and lowering total calorie intake and cholesterol. On the other hand, nutritional unbalance should be took into account. Low-glycemic index diet is based on the theory that contemporary diet contains significantly less fiber and unrefined carbohydrate, therefore insulin secretion is disturbed. Because low glycemic index food slowly increase blood glucose and insulin level, it induces much satiating effect and may decrease calorie ultimate intake. However, poor standardization of glycemic index is one of the main obstacle for the diet to be applied in the clinic. Meanwhile, high fructose food and beverage should be discouraged because it has little satiating effect and may cause insulin resistance. High fiber food is another recommendation for healthy, lean diet.