日帝植民地下의 韓國美術

이창규 국제문화학회 1990 역사와 사회 Vol.4 No.-

텔레스코픽 크라운 임플란트 지지 피개의치와 치아 지지 피개의치의 하악골내 응력분포에 관한 유한요소분석

이창규,백장현,김태훈,김민정,김형섭,권긍록,우이형 대한치과보철학회 2012 대한치과보철학회지 Vol.50 No.1

PURPOSE. The purpose of this study was to investigate the stress distribution in mandibular implant-supported overdentures and tooth-supported overdentures with telescopic crowns. MATERIALS AND METHODS. The assumption of this study was that there were 2, 3, 4 natural teeth and implants which are located in the second premolar and canine regions in various distributed conditions. The mandible, teeth (or implants and abutments), and connectors are modeled, and analyzed with the commercial software, ANSYS Version 10.1. Stress distribution was evaluated under 150 N vertical load bilaterally on 3 experimental conditions - between canine areas, canine and 2nd premolars, 10 mm posterior to 2nd premolars. RESULTS. Overall, the case of the implant group showed more stress than the case of the teeth group in stress distribution to bone. In stress distribution to superstructures of tooth and implants, there was no significant difference between TH group and IM group and the highest stress appeared in TH-IV and IM-IV. The stress caused from bar was much higher than those of implant and tooth. TH group showed less stress than IM group in stress distribution to abutment teeth and implant. CONCLUSION. The results shows that it is crucial to make sure that distance between impact loading point and abutment tooth does not get too far apart, and if it does, it is at best to set abutment tooth on premolar tooth region. It will be necessary to conduct more experiments on effects on implants, natural teeth and bone, in order to apply these results to a clinical treatment. 연구 목적: 이 연구의 목적은 텔레스코픽 크라운 하악 임플란트 지지 피개의치와 치아 지지 피개의치에서 지대치의 수와 위치에 따른 응력 분산을 비교하기 위함이다. 연구 재료 및 방법: 본 연구에서는 임플란트를 4개 식립하고 임플란트 지지 피개의치로 설계하였고, 식립 위치를 견치와 소구치 부위에 위치 별로 3개 또는 2개 존재시를 실험군으로 설정하였다. 자연치아를 갖는 경우도 견치와 제2소구치 4개를 가진 경우를 대조군으로 설정하고 부위별로 3개 또는 2개를 가지는 경우를 실험군으로 설정하였다. ANSYS Version 10.1 (Swanson, Inc., USA)로 분석하였다. 결과: 악골내 응력의 경우, 전반적으로 임플란트(IM)로만 구성된 경우가 치아(TH)로만 구성된 경우에 비해 응력이 크게 발생하였다. 상부구조의 경우, 치아군(TH)과 임플란트군(IM) 사이의 차이는 크게 없었으며 편측 견치와 제2소구치에 지대치 또는 임플란트가 위치하는 경우 가장 큰 응력이 나타났고 바(bar)에서 발생된 응력이 임플란트와 치아에서 발생되는 응력에 비해 상대적으로 훨씬 크게 발생하였다. 지대치와 임플란트의 경우, 치아군(TH)이 임플란트군(IM)보다 응력이 작게 발생하였다. 결론: 본 연구의 결과로부터 지대치(임플란트 또는 치아)를 설정할 때는 하중작용점과 지대치 사이의 거리가 너무 길어지지 않도록 지대치의 수와 위치를 확보해야 하며 소구치 자리에 지대치를 확보하는 것이 유리하다. 앞으로, 실제 임상에 적용하였을 경우, 임플란트 및 자연치아와 악골에 미치는 결과에 대한 연구가 더 필요할 것으로 생각된다.

ASO値 測定에 關한 實驗的 觀察

李昌珪 高麗大學校 醫學技術大學 1972 高麗醫技大雜誌 Vol.3 No.1

湖南의 美와 그 뿌리

이창규 원광대학교 미술대학 1988 圓光美術 Vol.- No.3

우리의 호남은 지난날 삼국시대 이후 너무도 불행한 역사적 발자취를 거쳐 왔기 때문에 호남의 전통의 발전적 연계성이 중단 되다시피 되었을 뿐 아니라 하마터면 호남 전통 그 자체를 상실할 염려가 없지 않았다.

全羅北道 西海岸을 素材로 한 風景畵硏究

李昌奎 圓光大學校 1985 論文集 Vol.19 No.2

I have endeavored to study on the landscape painting talent by using the materials of Byunsan peninsula, scene of Oui Island and that of Eochung lsland westwards of Chunbuk Province, where seem, I think, to be adequate for landscape painting researach through the same methods of drawing as the artists of Impressionism, and have used a traditional measure of western painting, that is, a method of making a work of oil painting in the aspect of stuff. In sense, this research on the landscape painting will, I am sure, serve for the rediscovery of beauty of our land, for a deep love towards our native pl. ace and for the excavation of rich sightseeing resources. With the repeated talent training, I will be able to find out a freshly and freely self-manifesting style of expression and believe that this study becomes a fertile fertilizer on my creative work and makes me work with more bravery.

IFCC인정 혈장단백표준품(CRM470)에 의한 면역단백 측정에 관한 연구

이창규,이승관,류정록,남현철,김상섭,박은병,김재영 高麗大學校 倂設 保健大學 保健科學硏究所 1996 保建科學硏究論集 Vol.5 No.1

Measuring proteins is unlike measuring ions and small molecules for which the chemical and physical properties are well understood. Assaying large proteins requires comparing the test sample with a reference materials. Quality Control surveys in recent years, in various parts of the world, have shown poor between laboratory agreement for measurments of immunoglobulins. Values for the commonly measured proteins may have varied a considerable amount among method depending on the protein measured and the standard materials by the manufacturer. The College of American Pathotogists and the Bureau Economic Communitaire de Reference of the European Economic Community have recently released Reference Preparation for Proteins in Human Serum(RPPHS). The assay for IgG and IgM using CRM470 standard were compared with conventional method. There was a good correlation among two methods. However, the mean value in IgG obtained by the CRM470 method was a slightly lower than that by the conventional method, but higher than that by the conventional method in IgM.

전해질 검사의 표준화(Ⅲ)

이창규,이승관,류정록,남현철,강영태,장철수 高麗大學校 倂設 保健大學 保健科學硏究所 1995 保健科學論集 Vol.21 No.1

Results of clinical laboratory tests are used in many medical situations. Ideally, the standards of test performance required to fulfill medical needs should be well defined, particularly standards for the important reliability performance characteristics, namely, imprecision and bias. Given that the objective of standardization is to ensure that the same result is obtained regardless of how, where, or by whom the test is done. The most stringency of the precision goals set by the other studies are those for calcium, sodium, chloride and potassium (CVs of≤5%), analytes under tight homeostatic control. From the results of this study, we conclude that matrix-induced biases may occur when commercial lyophilized control materials are used with some analytic systems, and that the amount and nature (positive or negative) of the observed biases are instrument, reagent, and method specific.

Emergency Coronary Angiography and Effects on Survival in Resuscitated Patients after Out-of-Hospital Cardiac Arrest

이창규,이경미,김인병 대한응급의학회 2014 大韓應急醫學會誌 Vol.25 No.5

Purpose: The aim of this study is to evaluate the clinicalcharacteristics and outcomes of patients with cardiac arrestwithout obvious extracardiac cause who underwent emergencyangiography to determine the factors related to significantcoronary artery disease in patients in whom coronaryangiography was performed. We also addressed theissues around the survival benefit of coronary angiographyand subsequent coronary intervention. Methods: In total 91 patients during the period between2004 and 2012 were included in the study. Clinical characteristicsand coronary angiographic data were collected retrospectively. The success measurement of the study wasset as survival at the time of hospital discharge. Results: In comparison of the demographic and clinical variablesof patients with and without emergency coronaryangiography, only the electrocardiogram differed significantlybetween the two groups. Fifty four patients underwent anemergency coronary angiography, which was performedlater for the remaining seven patients. Acute coronarylesions were observed in 38 patients (62%). Findings ofelectrocardiograms before and after return of spontaneouscirculation (ROSC) were not statistically significant in relationto the prevalence of a culprit lesion. Neither an emergencycoronary angiography nor successful coronary interventionshowed correlation with survival at the time of hospital discharge. A shorter duration to return of spontaneous circulation,an initial shockable rhythm, and the absence of shockwere found to be independent factors affecting discharge ofpatients alive in the overall study population (n=91). Conclusion: Considering the angiographic findings, neitherthe presence of a shockable rhythm nor ST-segment elevationmyocardial infarction (STEMI) before and after ROSC werefactors favouring acute coronary artery disease. The emergencycoronary angiography did not show correlation withsurvival at hospital discharge in patients with a resuscitatedcardiac arrest without non-cardiac cause. Factors positivelyrelated to survival should be considered when deciding oncoronary angiography in order to identify patients in whomroutine angiography is futile (e.g., the delay for return ofspontaneous circulation and presence of shock).

正常値의 平均値法에 依한 精度管理 狀態의 分析 考察

이창규,황선철 高麗大學校 倂設 保健大學 保健科學硏究所 1976 保健科學論集 Vol.7 No.1

Some biochemical constituents of blood from the specimens, submitted to the chemistry laboratory of a teaching hospital in the month of June, were analysed for the study of normal values and the status of the quality control program. The "Normal Value" analytical method was employed and summarized as follows: 1. Values of BUN, total proteins, electrolytes (Na, K, Cl, and Ca), transaminases (GOT & GPT), alkaline phosphate and thymol turbidity fell within the normal ranges. 2. The quality control of BUN, Cl and T. T. T were satisfactorily established, though other items showed tendency of trends, shifts, unrest, outlier or out of controls. 3. Such a poor tendency might be caused by some factors like inconsistency of the quality control program processing, reagents or equipments defect and technical errors including glassware washings.

臨床化學에 있어서 標準液의 吸光度에 의한 精度管理方法

李昌珪,黃善哲,金庄泳 高麗大學校 倂設 保健大學 保健科學硏究所 1977 保健科學論集 Vol.8 No.1

The absorbance of the standard: A valuable tool in quality control of spectrophotometric methods. A quality control system for spectrophotometric methods is presented. It is based on a coordinate graph showing the relationship of the absorbance of the standard to the observed value of a quality control serum sample. A prerequisite for the system is the use of a standard in the high range, while the quality serum has a value in the normal range. Every technologists should be able to evaluate the graph. It is concluded that the absorbance of the standard can provide a unique contribution to quality control in the clinical chemistry laboratory.