두개골의 두께: 일차연구

김수관,김운규,김봉균,장현선 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.6

The purpose of this study was to investigate the mean cranial bone thickness at various points of the bone and to serve as a clinical guide for choosing a bone graft. Twelve bones were obtained from 6 Korean adult skulls for this study. The mean bone thickness at each point of the 17 points of the bone and at the corresponding points of the opposite bone was obtained in all skulls studied. The thinnest part of the parietal bone was 5.92mm. The thickest part of the parietal bone was 7.58mm. The mean bone thickness at each point of measurements on two opposite bones was compared using the paired Student's t-test. The mean thickness did not differ significantly. The thickness in the same bone varied widely depending on the points of measurement.

대학 공문서 표준화를 위한 SGML DTD 개발

이봉주,강성수,강재관 경남대학교 신소재연구소 1999 論文集 Vol.11 No.-

정보화 시대를 맞이하여 방대한 양의 문서를 어떻게 표준화 전자화할 것인가가 중요한 문제로 대두되고 있다. 본 논문에서는 대학에서 사용되는 여러 가지 공문서에 대한 STMLDTD를 개발하였다. 먼저 대학 공문서의 유형을 분류하고 유형별 공문서에서 논리적 엘리먼트를 추출 정의한 뒤 이용자의 문서 이용 형태를 분석하여 DTD 생성에 반영하였다. 분석된 공문서의 구조는 DTD 저작도구를 이용하여 DTD 문서로 변환하였다. In this paper. prototype SGML DTDs for university official documents are developed. The official documents are first classified according to their attributes. and the most frequently used documents are selected among them for analysis. The structures of the documents are analyzed by document analysis methodology, and their SGML DTDs conformant to IS0 standard are developed. A DTD authoring tool is engaged in parsing the developed DTDs.

계면활성제 혼합 천연지방산유지 고형 비누의 세척성 및 생분해성 연구 : 생분해성을 중심으로 On Based Biodegradation

이봉연,류덕환,이태관 한국의류산업학회 2003 한국의류산업학회지 Vol.5 No.3

The purpose of the study was to get the valuable data for developing the new natural fat soaps which have an excellent biodegradation performance. Thus, natural fat soaps mixed with the two types of detergents (AOS and LAS) on the various concentrations were made and the biodegradation of the samples were analysed by Dissolved Oxygen method using active sludge. Also, the results were compared with the commercial synthetic detergents and market soaps. The results from the study were the followings: I. The plant fat soap and the wasted oil soap with the concentration of 5 mg/i and 15 mg/1 had an excellent biodegradation rather than animal fat soap. 2, There was little difference among samples with the concentration of 5 mgtl, but there was much difference among them with the concentration of 15 mg/l. 3. The periods for consuming oxygen of wasted oil soap mixed AOS and LAS was the fastest.

貯藏中인 쌀(벼, 玄米, 自米 Parboil米)의 脂肪成分의 化學的 變化

金關修,盧永姬,李熙鳳 충북대학교 농업과학기술연구소 1994 農業科學硏究 Vol.11 No.2

Rough rice(Chucheong) which had been harvested at the experiment station, Chung Buk National University on October 26, 1992, was used in this experiment. The rough rice was divided into two parts. A part of the rough rice was parbolied(B series) and another part was untreated(A series). Brown and polished rice was obtained from untreated and parboiled rice. Six different types of the rice stored at room temperature for about 10 months. During the storge time, moisture and crude lipid contents, free fatty acid values, peroxide values, TBA values and fatty acid compositions were investigated. The result was as follows. 1. The moisture contents of all the samples decreased remarkably during the storage periods. Polished rice showed the greatest decrease. The decreasing rate was pronounced between 3-7 mouth. 2. The crude lipid contents of the polished and brown rice increased during the storage periods. As the moisture contents decrease, the crude lipid contents was increased proportionally. The crude lipid contents of rough rice were rarely changed. 3. The free fatty acid values of all the samples increased during the storage periods. The increasing rate was pronounced between 5-9month. The free fatty acid values of polished rice was greater than those of brown and rough rice. 4. Peroxide values of all the samples increased during the storage periods. Especially, the increase in the peroxide values remarked between 5-9month. The peroxide values of untreated rice were greater than those of parboiled rice. 5. TBA values of all the samples increased during the storage periods. Its increase pattern were similar to the peroxide values. 6. Major fatty acids of the samples were oleic acid, and linoleic acrid, palmitic acid. A little of stearic acid, myristic acid, linolenic acid, and arachidic acid was found. The changes in fatty acid composition of the each samples were rarely noted during the storage periods.

부비동에 발생한 콜레스테롤 육아종의 치험 5예

김재호,김민관,유근식,이봉재 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.2

케쥬얼웨어 소비자의 라이프스타일 유형별 구매행동 특성에 관한 연구

김성환,김봉관,윤보석 東亞大學校 經營問題硏究所 1992 經營論叢 Vol.13 No.-

한우, 칡소 및 제주 흑우 Calpain-Calpastatin 유전자 다양성

이승환,김승창,조수현,최봉환,Aditi Sharma,임다정,당창권,장선식,김재환,고문석,양보석,강희설 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

The aim of study was to investigate genetic diversity for the calpain/calpastatin gene in three Hanwoo breeds [(Brown (n=62), Brindle (n=81) and Jeju Black (n=30)]. Random samples from three breeds of Hanwoo were selected and genotyped for the 7 SNPs of calpain/calpastatin using TaqMan method. Allele frequencies were investigated for CAPN1/CAST gene. Allele frequency of CAST2 SNP was 0.75, 0.59 and 0.22 for Brown, Brindle and Jeju black, respectively. The CAST3 revealed allele frequency of 0.59 and 0.57 in Brown and Jeju Black, while it showed very low allele frequency (0.07) in Brindle. In particular, favorable allele (G allele) for the CAPN1-2 SNP which was shown a strong association with tenderness in Taurine and Indicine cattle revealed 16% and 17% higher allele frequency in Brown Hanwoo (0.82) comparing Brindle (0.66) and Jeju Black Hanwoo (0.65). AMOVA demonstrated that among population variance occupied only 10% of total variance and among individual variance was 0%, while within individual variance was 90% of total variance. This result showed that population effect contributed very small portion of genetic to these three Hanwoo breeds, while within individual variance contributed large portion of genetic diversity within these Hanwoo breeds. In conclusion, three Hanwoo breeds (Brown, Brindle and Jeju black) showed a genetically homogeneous based on the 7 SNPs of CAPN1/CAST gene and it came from same ancestor to form modern Hanwoo breed.

조사연구에서 표본설계에 대한 고찰

양철호,양선화,신봉관,조지현 동신대학교 2005 論文集 Vol.15 No.-

Most of the survey research are conducted with samples. Thus, representativeness of the samples is crucial for the sound research. Reports of the various survey research were analized. The results of the analysis showed that different ways of sampling methods were utilized in various studies in order to ensure the selection of unbiased samples under the circumstances of purpose and population of the survey.

유지 투석중인 만성 신부전환자에서 허혈성 심질환의진단 지표로서의 심장트로닌-I의 유용성

신병철,강대웅,정지용,류봉관,서영욱,김정인,김범윤,김현리,정종훈 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.1

Background : Coronary disease is highly prevalent in patient with end stage renal disease (ESRD) and account for much of their observed morbidity and mortality. Troponin-I consistently maintains a high sensitivity and specificity and is most sensitive marker for ischemic heart disease (IHD). Method : We examed 49 hernodialyzed patients (22 male, 27 female) without evidence of acute coronary syndrome (ACS) for 6 months. Biochemical markers were measured in serial predialysis blood samples. For analysis, we used two cardio-specific assays for troponin-T (cTnT) as well as for troponin-I (cTnI) and compared the results with CK-MB (reference value ≤ 4.0 ng/mL) concentration. Results : Myocardial ischemia was observed in 47% (23/49) of patients. cTnT level above 0.1 ng/mL. and cTnI level above 0.5 ng/mL, were observed in 22% (11/49) and 20% (10/49) of patients respectively. cTnI revealed significantly higher positive rate in patients with myocardial ischemia than the patients without myocardial ischemia (43 % vs 30%) (p<0.05). cTnT and CK-MB revealed no difference in positive rate between the patients with and without myocardial ischemia (cTnT : 30% vs 15% and CK-MB : 30% vs 19%). The sensitivity and specificity of cTnI to myocardial ischemia were higher than those of cTnT and CK-MB (sensitivity 43% vs 30% and 30%. specificity 100% vs 85% and 81%). Conclusion: Both cTnT and cTnI are useful in ruling out myocardial injury in chronic renal failure patients. But. cTnI is a more sensitivity and excellent specificity of ischemic heart disease than cTnT and CK-MB in hemodialyzed patients. In patients with ischemic heart disease, the presences of DM and advanced age were higher than those in patients without ischemic heart disease (p<0.05). Among the baseline characteristics old age, elevated LDH and diabeties were significant more frequent in the patients with elevation of cardiac troponin-I (p>0.5 ng/mL) than those with cardiac troponin-I (p<0.5 ng/mL), p=0.038, p=0.049, and p=0.045, respectively. Our results suggest that these cTnI is the potential diagnostic marker for the prediction of IHD in ESRD patients.

Enzymatic Synthesis and Characterization of Galactosyl Trehalose Trisaccharides

Bong-Gwan Kim,Kyung-Ju Lee,Nam-Soo Han,Kwan-Hwa Park,Soo-Bok Lee 한국식품과학회 2007 Food Science and Biotechnology Vol.16 No.1