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심재현,정성목,신상태,조종기 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-
A 1-year 2-months old Shih-tzu dog was presented with history of abdominal distention and tenderness, vomiting, anorexia and constipation. On physical and laboratory examination, WBC count was severely elevated (48.38×10^(6)/μl). On radiographs and ultrasonographs, dilation of right renal pelvis and right proximal ureter and renal calculi of both kidney were shown. It was diagnosed as a infectious renal and ureteral urolithiasis. Pyelolithotomy of right kidney was undertaken. After operation, normal urination was observed and appetite was recovered. By ultrasonographic examination, hyperechoic mass was not observed in the right kidney.
Caerulein과 총담췌장관 결찰에 의한 급성췌장염 모델의 특징
심상수,김현준,이윤혜,박진형,이승준,김창종 중앙대학교 약학연구소 2000 약학 논총 Vol.14 No.-
To investigate the difference in acute pancreatitis experimentally induced by common bile-pancreatic duct (CBPD) ligation and caerulein iv infusion, we measured amylase activity, pancreatic edema and phospholipase A_2 activity in pancreatic tissue and serum. In acute pancreatitis induced by CBPD ligation and caerulein infusion, tissue edema and tissue phospholipase A_2 activity significantly increased as compared with normal group. Also experimental acute pancreatitis significantly increased the levels of serum protein, serum amylase activity and serum phospholipase A_2 activity. In the comparison of two experimental models, the symptom of acute pancreatitis induced by CBPD ligation was more severe than that induced by caerulein infusion. These results indicate that the increase of phospholipase A_2 activity in pancreatic tissue and serum may be one of the parameters for the diagnosis of acute pancreatitis.
Flow 센서응용을 위한 SOI bridge resistor의 제조
심준환,조찬섭,이종현 경북대학교 센서기술연구소 1991 센서技術學術大會論文集 Vol.2 No.1
Porous silicon layer (PSL) was fabricated by anodic reaction of n^(+) layer of n^(+)/n silicon structures, The dependence of HF concentration, applied bias and reaction time on the porosity of PSL were investigated. FIPOS-SOI bridge resistors were achieved for the application to flow sensors using n/n^(+)/n silicon structures, Those resistors are thermally isolated by oxidized porous silicon. The SOI bridge was 50μm wide, 900 μm long, and 5μm thick, Measured TCR(temperature coefficient of resistance) was 1.1x10^(-3)/℃.
정국현,심일섭,김종욱 한국체육대학교 교양교육연구소 2002 韓國體育大學校 敎養敎育論文集 Vol.- No.7
The purpose of this study was to investigate the influence of Taekwon-do training on high school student’s emotional development. For this purpose, 651(male=334, female=317) high school student’s were select as subjects. The questionnaire that was used Kang(1996) was also used in this study. The statistics selected in this study were descriptive statistics, one-way ANOVA, and Schefe post hoc test. As a result of the analyses of collected data, the following conclusions were obtained: firstly, there was a significant difference in high school student's emotional development by socio-demographic variables. Secondly, high school student's fear response is different according to their level of Taekwon-do training.
單純回歸模型에서 相關係數에 관한 考察과 假說檢定에 대하여
韓年鍾,沈賢輔 群山大學校 1985 論文集 Vol.11 No.-
In order to estimate and test the population correlation coefficient p, the distribution of the sample correlation coefficient r derived from the sample should be understood. This thesis discusses the p. d. f. f(r) of the sample correlation coefficient r obtained from the bivariate normal distribution under two different cases. One is that the population correlation coefficient p is zero and the other is that nonzero. Finally, the tests of statistical hypothesis have been done saparately.
전자상거래를 통한 충남지역 중소기업의 경쟁력제고에 관한 연구
박종수,심영수,현인규 순천향대학교 사회과학연구소 2000 순천향 사회과학연구 Vol.6 No.2
The small and medium enterprises are the bases of nation's industry and economy as well as local. Therefore it is very important to cultivate the competitive small and medium firms. Recently, the electronic commerce has enlarged its sphere of utilization and scale of a market rapidly, and many countries and enterprises pay attention to its influences on business. The electronic commerce will give good chances to the small and medium firms. But they have many difficulties in introducing it. In this empirical study we tried to find out the need and strategies for utilizing the electronic commerce in small-medium business in Choongnam Provincial Area to strengthen their competitiveness. And we suggest the government must establish the effective supporting policies to speed up the adoption and spread of the electronic commerce.
Silicone rubber 멤브레인을 이용한 압저항형 저차압센서의 개발
서창택,공성수,심준환,고광락,서현미,김영진,설철규,신장규,이종현 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
A 4-beam piezoresistive differential pressure sensor using a silicone rubber membrane has been fabricated on the selectively diffused (100)-oriented n/n^(+)/n silicon substrates by an unique silicon micromachining technique using porous silicon etching. The width, length, and thickness of the beam is 120 μn, 600 μm, and 6 μm, respectively, and the thickness of the silicone rubber membrane was 36 gm. By the use of four-beam structure, the mechanical strength of the differential pressure sensor can be highly improved due to smaller shear stress. And the lower sensitivity of the sensor can be simply solved by combining two output signals of half-bridge. The effectiveness of the sensor is confirmed through an experiment and FEM simulation in which the differential pressure sensor is characterized.
박기열,심준환,류인식,조찬섭,이종현 경북대학교 센서기술연구소 1994 센서技術學術大會論文集 Vol.5 No.1
Silicon diaphragm arrays were fabricated by silicon micromachining using porous silicon. Fabricated diaphragms consist of 3x3 array. The thickness of diaphragm is 5μm and theire size are 200x200, 300X300 and 400X400μm^(2), respectively. Several % of resistance change is observed, when stress was applied at diffused resistor on the diaphragm. Microdiaphragm arrays were easily fabricated by silicon micromachining using porous silicon, and we confirmed feasibilty of application at tactile sensor.