냉장고 냉매소음 저감을 위한 단열 발포재의 진동 전달특성 분석

한형석(Han, Hyung-Suk),김민성(Kim, Min-Sung),정의봉(Jeong, Weui-Bong),서민영(Seo, Min-Young),이수영(Lee, Soo-Young) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.1

In the refrigerator, the two-phase refrigerant-induced noise of the capillary tube in an evaporator-inlet pipe has been a great concern. The capillary tube is usually covered with insulation-foam packed in the space between inner and outer cabinets without any vibration isolation. Therefore, the refrigerant-induced vibration of the capillary tube can be easily transferred to the outer cabinet, which may increase the radiated noise. In this paper, the characteristics of transferred vibration through the insulation-foam are investigated experimentally by using the refrigerantsupplying equipment. The frequency characteristics, such as dynamic Young's modulus and loss factor, of the insulation-foam are also discussed.

경미로 접근법을 통한 전정신경초종 수술에서 술 후 안면신경 기능의 분석 : 난외표제 : 전정초종에 대한 경미로 접근법의 안면신경 기능결과

서민영(Min Young Seo),조양선(Yang-Sun Cho),박가영(Ga Young Park),홍성화(Sung Hwa Hong),정원호(Won-Ho Chung),박관(Kwan Park),공두식(Doo-Sik Kong),설호준(Ho Jun Seol) 대한두개저학회 2010 대한두개저학회지 Vol.5 No.1

Introduction : One of the therapeutic goals for vestibular schwannoma (VS) is to preserve the function of cranial nerves, especially the facial nerve (FN). The purpose of this study was to determine the relationship between tumor origin, size and outcomes of FN function in VS surgery via translabyrinthine approach. Methods : To determine the characteristics of tumor and FN outcomes, medical records and MRI were reviewed retrospectively in a series of 39 patients who underwent gross total removal of VS via translabyrinthine approach. FN function was graded according to the House-Brackmann (H-B) grading immediately after surgery and at 1 year postoperatively. Results : The tumor originated from inferior vestibular nerve (IVN) was 38.5 % (n=15) and that of superior vestibular nerve (SVN) was 30.8% (n=12). Twelve out of 15 (80%) patients with IVN tumors and 10 (83.3%) out of 12 patients with SVN tumors achieved HB grade I-II facial nerve function at immediate and 1-year after the surgery. (p=0.825, p=0.396) In comparison between tumor size and FN function, immediate postoperative satisfactory FN outcome of HB I-III were achieved in 4 (80%), 8 (80%), 12 (70.6%) and 3 (42.9%) patients with intracanalicular tumor, tumor less than 1cm, 1.1-2.5cm and 2.6-4cm, respectively. One-year postoperatively, HB grade I-II could be observed in 4 (80%), 9 (90%), 13 (76.5%) and 4 (57.1%) patients. In overall, FN function of HB grade I-III was achieved in 71.8% immediately and 76.9% 1-year after surgery. Conclusions : The result of the facial nerve preservation did not differ significantly according to tumor location. The preservation of facial nerve function seems to be correlated with size of the tumor. More than 3/4 of VS patients could maintain their FN function of HB grade I-II after translabyrinthine approach at 1 year follow-up.

유아 및 초등 저학년 아동의 인터넷게임중독경향과 인성특성의 관계

서민영 ( Min Young Seo ),임은미 ( Eun Mi Lim ) 한국아동교육학회 2010 아동교육 Vol.19 No.4

본 연구에서는 유·아동의 인터넷게임중독 경향을 분석하고 인터넷 게임중독경향과과 인성특성의 관계를 분석하였다. 또한 유·아동의 인터넷게임중독 경향과 인성특성은 어떤 관계가 있으며, 인터넷게임의 환경문제와 행동특성이 10가지 인성특성 중 어떤 특성과 관계가 있는지를 밝히고자 하였다. 연구대상은 전라북도 내 유치원과 초등학교 1, 2학년 남녀학생 317명이었고, 연구도구는 유아 및 초등학교 저학년 부모용 인터넷 게임중독 경향성 검사와 한국아동인성평정척도(KPRC)였다. 연구결과 유·아동의 인터넷 게임 중독 경향은 정상 사용자인 게임중독 경향 일반군이 대다수였으나 게임중독경향 위험군과 게임중독경향 잠재군도 11.6%나 있었다. 남자 유·아동의 인터넷게임 중독 경향이 여자 유·아동의 인터넷 게임중독 경향보다 강한 것으로 나타났으며, 유·아동의 인터넷게임 중독 경향은 학년이 올라감에 따라 강해졌다. 인터넷게임중독경향과 부정적 인성특성은 유의한 관계를 가지고 있었으며, 이러한 경향은 인터넷게임중독 경향의 하위요인인 게임환경문제와 게임행동특성 모두에게서 드러났다. 성별로 볼 때, 인터넷게임 중독 경향과 부정적 인성특성의 관련성은 여자 유·아동에게서 더욱 깊은 것으로 나타났고, 초등학교 1학년 아동보다 유아와 초등학교 2학년 아동에게서 더 깊은 것으로 나타났다. 인터넷 중독 경향이 유아기부터 발생하며 학년이 높아질수록 급속하게 강해진다는 점을 밝힌 본 연구의 결과는 정보문화에 대한 올바른 윤리교육과 인터넷중독 예방교육 및 상담이 인터넷을 처음 접하는 유·아동기에도 활발하게 이루어져야 함을 시사한다. This study is to understand infants` and low-grade elementary school studensts` internet-game addiction tendency and examine the relationship between internet game addiction tendency and personality characteristics of infants and low-grade elementary students. The subjects consisted of 317 children from a kinder-garden and an elementary school in J city. The survey tools were Korean Personality Rating Scale for Children(KPRC) and Internet Game Addiction Scale(IGAS). The respondents were the parents of the subjects. The results were as follows: About 11.6% of subjents were at the risky state of internet game addiction tendency. Male infants and children`s internet game addiction tendency was higher than females`. As age grew older, internet game addiction tendency became stronger. Internet game addiction tendencies were significantly related to personality characteristics. Among female infants and children, the relationship between internet game addiction tendency and personality characteristics was higher than among male infants and children. Also, among infants and 2nd grade children, the relationship between internet game addiction tendency and personality characteristics was higher than among 1st grade children. These results suggests that education and conseling programs protecting internet game addiction and computer misuse from infants and Children should be prepared.

대구지역 어린이급식관리지원센터 지원 일부 어린이집 급식의 미생물적 품질 평가

서민영 ( Min-young Seo ),류경 ( Kyung Ryu ) 대한영양사협회 2019 대한영양사협회 학술지 Vol.25 No.1

This study examined the microbiological quality of daycare center meals. Six menu items from five daycare centers in Daegu included uncooked processed foods (seasoned cucumber and lettuce salad), post-preparation after cooking processed foods (rolled omelet and seasoned soybean sprout), and cooking processed foods (panbroiled beef with oyster sauce and seasoned pork roast). Microbiological analyses were performed for the aerobic plate counts (APC), coliforms, and Escherichia coli. The analyses were conducted in July and November 2017. The mean APC and coliform count of seasoned cucumber decreased significantly from 4.71 log colony forming units (CFU)/g and 2.50 log CFU/g in July to 4.07 log CFU/g and 1.78 log CFU/g in November, respectively (P<0.01 and P<0.001). The APC of panbroiled beef with oyster sauce and seasoned pork roast were significantly lower in July (1.84 and 1.79 log CFU/g) than in November (2.41 and 2.28 log CFU/g) (P<0.001). The coliform counts of panbroiled beef with oyster sauce and seasoned pork roast were significantly greater in November (2.11 and 1.62 log CFU/g) (P<0.001). E. coli was not detected. Among the foods prepared using the three preparation processes, the post-preparation after cooking processed foods had the lowest microbial quality. The APC and coliform counts of cooking processed foods were satisfactory in July, with an acceptable rating for pan-broiled beef with oyster sauce in November. Time-temperature control and the prevention of cross-contamination are essential during meal production for food safety, regardless of the season.

스토리텔링을 적용한 수학 수업이 지적장애 고등학생의 수학 학업성취도 및 수업 참여 행동에 미치는 영향

서민영(Seo, Min-Young),정은희(Jeong, Eun-Hee) 한국청각·언어장애교육학회 2021 한국청각·언어장애교육연구 Vol.12 No.2

본 연구는 스토리텔링을 적용한 수학 수업이 수학 학업성취도와 수업 참여 행동에 어떠한 영향을 미치는지 알아보고자 하였다. 이를 위하여 지적장애학교 고등학생 5명을 단일집단으로 하여 수학 학업성취도에 대해 사전·사후 비교를 하였고, 수업 참여 행동을 관찰하였다. 연구 결과 첫째, 스토리텔링을 적용한 수학 수업이 지적장애 고등학생의 수학 학업성취도에 긍정적인 영향을 미쳤다. 둘째, 스토리텔링을 적용한 수학 수업이 지적장애 학생의 수업 참여 행동에 긍정적인 영향을 미쳤다. 이와 같은 결과를 바탕으로 수학 수업에 학생의 발달 특성을 고려한 다양한 생활 속 이야기 활용의 필요성과 스토리텔링 수업기법에 대한 교사 연수가 필요하다는 점 등에 대해 논의하였다. The purpose of this study was to investigate the effects of storytelling-applied math classes on math academic achievement and class participation behavior. Pre- and post-comparison of academic achievement was conducted for 5 high school students with intellectual disabilities, and class participation behavior was observed. As a result of the study, first, the mathematics class applied with storytelling had a positive effect on the mathematics academic achievement and class participation behavior of high school students with intellectual disabilities. Lastly, the necessity of teacher training for storytelling and storytelling teaching techniques was discussed in consideration of the developmental characteristics of students.

비정규직 고용환경에서 학습상담사들의 경험에 대한 합의적 질적 연구(CQR)

서민영(Seo Min-Young),이충효(Lee Chung-hyo),황근순(Hwang Geun-Soon) 한국교육심리학회 2018 학교심리와 학습컨설팅 Vol.5 No.1

타당성평가를 위한 네트워크 연결성 지표에 관한 연구

서민영(SEO, Min Young),김형진(KIM, Hyung Jin),정진혁(CHUNG, Jin Hyuk) 대한교통학회 2014 대한교통학회 학술대회지 Vol.70 No.-

혈당 개선 기능성 소재로써 상엽가미생맥산의 사용가능성에 대한 연구

서민영 ( Min-young Seo ),김동희 ( Dong-hee Kim ) 대전대학교 한의학연구소 2021 한의학연구소 논문집 Vol.30 No.2

This study aims to investigate the effects of Mulberry Leaves Gami Saengmaek-san (MLGS) on blood glucose and lipid metabolism in type 2 diabetic mellitus mice, and to evaluate its use as a functional material for glycemic control. MLGS consists of Saengmeak-san composed of Liriope platyphylla Wang et Tang, Schisandra chinensis Baillon and Panax ginseng C.A. Meyer with Morus alba Linné added, which have been proven to have antidiabetic properties. We researched the effects of MLGS in type 2 diabetic mellitus mice. C57BL/6 mouse groups had no treatment, db/db mouse randomly assigned to 4 groups, 2 groups of the control group treated with distilled water, 1 mg/kg of glimepiride and 2 groups of the experimental group treated with MLGS (200 and 400 mg/kg/day). After 4 weeks of treatment, blood glucose levels and body weight were checked. Liver function indicators (AST, ALT, ALP and LDH) and lipid metabolites (total cholesterol, HDL cholesterol, LDL cholesterol, and triglycerides) were measured with a biochemistry analyzer. Diabetic factors (insulin, resistin, leptin, and adiponectin) were measured with ELISA. MLGS significantly decreased body weight, fasting blood glucose, liver function indicators (AST, ALT, ALP, and LDH), lipid metabolites (total cholesterol, LDL cholesterol, and triglycerides), and diabetic factors (insulin and resistin). Also, leptin and adiponectin were significantly increased in the MLGS group, and HDL-cholesterol was increased, but there was no significant difference with the control group. MLGS may have the potential to improve diabetes mellitus by regulating blood glucose levels and diabetic factors. Also protecting from diabetic complications by adjusting liver function indicators and lipid metabolites. These results suggest that MLGS can be used as a functional food for diabetes.

국가 지하수 관측망 시료에 대한 주요 양이온 및 동위원소 특성 분석

서민영(Min Young Seo),신우진(Woo-Jin Shin),박상희(Sanghee Park),송형석(Hyeongseok Song),최혜빈(Hye-Bin Choi),김지윤(Jiyun Kim),류종식(Jong-Sik Ryu) 대한지질학회 2017 대한지질학회 학술대회 Vol.2017 No.10

기체층이 외부에 부착된 다중판에 의한 차음

서민영(Min-Young Seo),이정권(Jeong-Guon Ih) 한국소음진동공학회 2016 한국소음진동공학회 학술대회논문집 Vol.2016 No.4