Effect of Cr₂O₃ Content on Densification and Microstructural Evolution of the Al₂O₃-Polycrystalline and Its Correlation with Toughness

Seo, Mi-Young,Kim, Hee-Seung,Kim, Ik-Jin The Korean Ceramic Society 2006 한국세라믹학회지 Vol.43 No.8

The effects of $Cr_2O_3$ on the microstructural evolution and mechanical properties of $Al_2O_3$ polycrystalline were investigated. The microstructure of $Al_2O_3-Cr_2O_3$ composites (ruby) was carefully controlled in order to obtain dense and fine-grained ceramics, thereby improving their properties and reliability with respect to numerous applications related to semiconductor bonding technology. Ruby composites were produced by Ceramic Injection Molding (CIM) technology. Room temperature strength, hardness, Young's modulus and toughness were determined, as well as surface strengthening induced by thermal treatment and production of a fine-grained homogenous microstructure.

수술로 호전되지 않은 췌장 농양을 내시경 치료로 완치한 1 예

서희영;전태주;김선영;강미선;허란;박지영;서동대;오태훈 인제대학교 백병원 2011 仁濟醫學 Vol.32 No.-

Necrotizing pancreatitis develops in about 10-20% of patients with acute pancreatitis, and pancreatic abscesses develop in 3% of them. The mortality of pancreatic abscess has been reported up to 40% in one study. Recently, there are several reports that show good results with n on-surgical therapy, such as percutaneous drainage and endoscopic drainage, but if the non-surgical drainage fails, surgical therapy are recommended. However, there is no definite therapeutic method which is suggested yet so far after the failure of the surgical drainage. So we report the case in which we experienced successful treatment of pancreatic abscess by endoscopic removal of necrotic tissue through the gastrocystostomy, after the failure of the surgical debridement and internal drainage through gastrocystostomy.

Descriptive and Hedonic Perception of Consumers for Instant Drinking Porridges

Kim Young Seo1,You Su MI,Oh Ji Eun,Cho Mi Sook 한국식생활문화학회 2018 한국식생활문화학회학술대회논문집 Vol.2018 No.10

기본과정과 방과후과정에 따른 만3세 유아의 대인문제해결능력과 친사회적 행동의 차이

서영미(Young Mi Seo) 한국열린유아교육학회 2016 열린유아교육연구 Vol.21 No.1

본 연구는 유치원 기본과정과 방과후과정에 따른 만3세 유아의 대인문제해결능력과 친사회적 행동에 어떤 차이가 있는지를 알아보는데 연구의 목적을 두었다. 연구대상은 전북에 소재한 유치원에 재원 중인 만3세 유아 201명으로 유치원 운영시간에 따라 기본과정 유아 93명, 방과후과정 108명이다. 연구도구는 전정연(2002)이 수정보완하여 제작한 대인문제해결사고 검사도구와 김영옥(2003)의 친사회적행동 검사 도구를 간편형 척도로 재구성한 서소정(2006)의 검사도구를 사용하였다. 자료분석은 SPSS 21버전을 사용하여 연구대상의 일반적인 배경의 빈도와 백분율을 산출 후, t-test를 실시하였다. 본 연구결과는 다음과 같다. 첫째, 대인문제해결능력은 기본과정 유아들이 방과후과정 유아들보다 높은 것으로 나타났고, 하위영역의 결과예측 사고능력에서 기본과정 유아들이 방과후과정 유아들보다 높게 나타났다. 둘째, 친사회적 행동은 교육과정에 따라 유의미한 차이가 나타나지 않았으나, 기본과정 유아들이 방과후과정 유아들보다 친사회적 행동 중 감정이입과 조절하기를 많이 하는 것으로 나타났다. The purpose of this study is to indicate if there are any differences between interpersonal problem solving abilities and prosocial behavior of 3-year-old children based on basic education course and after-school course. The subjects of this study are 201 3-year-old kindergarten children from Jeonbuk, 93 children from basic education course and 108 after-school course based on operating hours. Interpersonal problem solving ability test method by Jeong-Yeon Jeon(2002) and the simplified reconstructed test method by So-Jeong Seo(2006) modified from prosocial behavior test method originally created by Young-Ok Kim(2003) were used. SPSS version 21 were used to analyze by calculating frequency on general background of the subjects and percentage, and then t-test was performed. The results are as follows. First, the basic education course infants have higher interpersonal problem-solving skills than the after-school course children, also the basic education course infants have indicated higher subregion predicted thinking level than the after-school course children. Second, prosocial behavior did not appear significant differences depending on the courses, however the basic education course children showed having a lot more inner-empathy and emotion control among prosocial behaviors than children of after-school course.

남성화를 보이는 여성에서 발견된 난소의 Steroid Cell Tumor 1예

조인호,정대훈,박영미,서영진,손영실,정철회,강영미,정수전,김영남,이경복,성문수,김기태 인제대학교 2006 仁濟醫學 Vol.27 No.-

Steroid cell tumor is a rare ovarian sex cord-stromal tumor which accounts for 0.1% of all ovarian tumors. Until now, only 4 cases have been reported in domestic literatures. Steroid cell tumor often secrets testosterone and presents virilization in adult women or precocious puberty in children. Treatment is often performed by surgical removal, adjuvant chemotherapy and radiation, but completely accepted treatment was not existed. We experienced a case of steroid cell tumor, which was manifested by typical virilization in a 43-year old patient, who was previously performed hysterectomy and unilateral oophorectomy. So, we present with a brief review of the literatures.

편도체 기저외측핵의 AP5 투여가 상승된 경악반응의 습득에 미치는 영향

서미숙,조소현,김기석,이만영 한국심리학회 한국심리학회지 생물 및 생리 Vol.5 No.1

본 연구는 고전적 공포조건화에 관여하는 장소로 알려진 편도체의 기저 외측핵에 장기상승작용(Long-Term Potentiation: LTP)의 생성을 차단하는 약물인 MNDA (N-methyl-D-aspartate)길항제 AP5를 미세주입함으로써 시각적 조건자극(CS)을 사용한 경우에, 상승된 경악 반응의 습득이 차단되는지를 보고자 하였다. 동물은 AP5-AP5, AP5-식염수, 식염수-AP5, 식염수-식염수 집단으로 나누어서 CS-US 배쌍직전에 AP5나 식염수를 주입한 후 훈련시켰다고 다시 검사직전에 AP5 혹은 식염수를 주입하였다. AP5-AP5집단과 AP5-식염수집단은 상승된 경악반응을 보이지 않았고, 식염수-AP5, 식염수-식염수 집단은 상승된 경악반응을 보였다. CS-US배쌍 직전에 주입한 AP5는 상승된 경악반응을 차단하였고, 검사직전에 주입한 AP5는 상승된 경악반응을 차단하지 않은 결과는 AP5가 습득을 차단했으되 그 표현에는 영향을 미치지 않았다고 해석된다. 그리고 AP5-AP5, AP5-식염수 집단이 상승률에서 유의미한 차이를 보이지 않았으므로, 상승된 경악반응의 차단이 상태의존적 인출 실패에 기인한 것이 아니고, AP5 자체의 약효때문임을 알 수 있다. It has been known that the amygadala is the neural substrate for conditioned fear as well as unconditioned fear. Among the substructures of amygdala, the basolateral nucleus where CS and US inputs converge and LTP occurs, contains high densities of NMDA receptors and so seems to have a critical role in synaptiplasticity. NMDA antagonist, AP5 prevent induction of Long-term potentiation, but not expression of LTP. LTP is an activity dependent enhancement of synaptic efficacy and is regarded the psysiological mechanisms that might underlie learning and memory. So this experiment was done to investigate what effect AP5 injection to the basolateral amygdala on the acquisition and expression of the fear conditioning, using the fear potentiated Startle paradigm. Animals were allocated to AP5-AP5, AP5-saline, saline-AP5, saline-saline groups. AP5 or saline was injected just before conditioning and testing. The re sult is that AP5-AP5, AP5-saline group didn't show the potentiated startle, comparative to the saline-AP5, saline-saline group, and AP5-AP5 group is not significantly different from AP5-saline. So we conclude that AP5 blocked the acquisition but not expression of conditio-ned fear-potentiated startle and convince that the blocking is not due to state-dependent retrieval failure.

백금박막 RTD를 이용한 유속센서의 제조와 그 동작특성

서현미,장경훈,김영진,설철규 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

A flow sensor for detecting the flow rate of a air, composing a substrate, a heating element, and one or two fluid temperature sensing elements disposed symmetrically around the heating element. Wherein resistence changes by a fluid temperature change and heating element is maintained at fixed level by the control of voltage that is applied to the heating element. The function of the heating element(microheater) is based on the self-heating effect of the resistor when current is applied to it. A airflow sensor is capable of accuritely measuring a air flow irrespective of changes in ambient temperature. Pt thin films were deposited by a DC magnetron sputtering with Ar/O_(2) gas mixtures. Due to the oxygen incorporation into the Pt films, deposition rate and resistivity of as-deposited Pt thin films increased with oxygen fraction in the sputtering gas.

무용교사의 인식도 조사 연구

서영,이지은,김미숙 圓光大學校 附設 體力科學硏究所 2003 體力科學硏究 Vol.26 No.2

The purpose of this study was to analyze the present situation of the perceived purpose of dance teacher. Therefore, this study investigate to survey the present and problems of professional dance education in art high-school to suggest the developing direction of professional dance education of art high-school days in the future. In the followi0ngs, this researcher is to make some kinds of suggestions about the points at issues of professional dance education and the perceived purposes of dance teacher and about its desirable development direction. 1) Because do not act underpart of dancing education properly early stage for positivity that is full text art in education of audience putting first connected with dancing of present art high school, is going to need correct R&D in full text course of study. 2) When get into the college in art high school according to the importance of early education, dancing competent person upbringing that refer in target of full text dancing education, must accomplish link so that can prosper more own major field of study. 3) Independence of dancing subject may have to consist quick on research and development about dancing teacher and student's interaction and development urea of dancing education. Most of human progress through ceaseless change of life as develop education to develop repeatedly brilliant development through ceaseless research analysis accomplish. As propel research that student affairs section teacher is intention enemy the future for phase of new dancing education escaping in existent idea as well as full text dancing and propose must try, take the place of conclusion.

개에서 발생한 양파 섭취에 의한 하인즈 소체 용혈성 빈혈 증례

이미선,윤기영,서경원,최호정,정성목,송근호,조종기,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2012 動物醫科學硏究誌 Vol.19 No.1

A 10 month-old Yorkshire Terrier was referred to the Veterinary Medical Teaching Hospital of Chungnam National University with the history of lethargy, bile pigment in urine and anorexia. Blood smear showed Heinz body, polychromatocytosis, schistocytosis, anisocytosis, which were the results from the oxidative injury. Hematology demonstrated a moderate anemia(PCV 22.4%, reference rage 35-55%), which was regeneration based on the degree of RPI (4.03, reference rage > 1). Serum biochemistry demonstrated mild elevation in total bilrubin, and mild decrease in total protein and albumin concentration. A diagnosis of Heinz body hemolytic anemia secondary to onion ingestion was made and treated with fluid therapy, oxygen and antioxidant drugs. The dog recovered without any complication.

간접부착술식시 치면과 레진 베이스의 간격 및 접착제에 따른 결합강도

서미영,박병주,경희문,황현식 전남대학교 치의학연구소 2001 구강과학 Vol.13 No.3

The purpose of this study was to evaluate the feasibility of the combined use of paste resin with sealant as an adhesive of the indirect bonding. The resin bases made of lighcured resin were bonded to the bovine incisors at a distance of 0.0, 0.2 or 0.4mm using the sealant only or the mixture of sealant and paste resin. Bond strength of each group was measured using universal testing machine. The results were as follows: 1. The bond strength was reduced in both groups as the distance between enamel surface and resin base increased. 2. The bond strength showed no statistical difference between two groups in case the distance between enamel surface and resin base was 0.0mm. 3. In case the distance between enamel surface and resin base was 0.2 or 0.4mm, the sealant with paste resin group showed significantly higher bond strength than the sealant only group. The results of the present study indicate that the use of paste resin with sealant may be desirable as an adhesive in indirect bonding, particularly in case a gap is suspected between enamel surface and resin base.