Metal Organic Chemical Vapor Deposition법을 이용한 Germanium 전구체의 증착 특성 연구

김선희,김봉준,김도형,이준기,Kim, Sun-Hee,Kim, Bong-June,Kim, Do-Heyoung,Lee, June-Key 한국재료학회 2008 한국재료학회지 Vol.18 No.6

Polycrystalline germanium (Ge) thin films were grown by metal organic chemical vapor deposition (MOCVD) using tetra-allyl germanium [$Ge(allyl)_4$], and germane ($GeH_4$) as precursors. Ge thin films were grown on a $TiN(50nm)/SiO_2/Si$ substrate by varying the growth conditions of the reactive gas ($H_2$), temperature ($300-700^{\circ}C$) and pressure (1-760Torr). $H_2$ gas helps to remove carbon from Ge film for a $Ge(allyl)_4$ precursor but not for a $GeH_4$ precursor. $Ge(allyl)_4$ exhibits island growth (VW mode) characteristics under conditions of 760Torr at $400-700^{\circ}C$, whereas $GeH_4$ shows a layer growth pattern (FM mode) under conditions of 5Torr at $400-700^{\circ}C$. The activation energies of the two precursors under optimized deposition conditions were 13.4 KJ/mol and 31.0 KJ/mol, respectively.

발효 , 세포배양 , 생물공정 Red Beet 의 모상근 배양을 이용한 천연색소인 Betacyanin 생산의 최적화

김선희,김성훈,이주노,안상욱,김광수,황백,이현용 ( Sun Hee Kim,Sung Hoon Kim,Ju No Lee,Sang Wook An,Kwang Soo Kim,Baik Hwang,Hyeon Yong Lee ) 한국미생물생명공학회 1998 한국미생물·생명공학회지 Vol.26 No.5

건축구조용강재(SN490) 조립 H형강 기둥-보 접합부의 이력거동에 관한 실험적 연구

김선희,이성희,김진호,김대중,최성모,Kim, Sun Hee,Lee, Seong Hui,Kim, Jin Ho,Kim, Dae Jung,Choi, Sung Mo 한국강구조학회 2008 韓國鋼構造學會 論文集 Vol.20 No.6

1994년 노스리지 지진 이전 우수한 연성능력을 보유한 내진상세로 생각되던 WUF-B 접합부의 기둥-보플랜지 용접위치에서 발생 한 취성파괴는 WUF-B 접합부에 대한 새로운 고찰을 요구하였다. FEMA(Federal Emergency Management Agency)의 후원으로 SAC Steel Project에서는 WUF-B 접합부의 스캘럽(Weld access holes) 형상, 용접과정, 용접재료 등을 개정한 내진상세를 FEMA-350에 제안하 였다. AISC Seismic Provisions(2005)에서는 WUF-B 접합부를 OMF(Ordinary Moment Frames)로만 사용하도록 규정하고 있다. 본 연 구에서는 SM490 및 SN490 조립형강을 이용하여 FEMA-350에 제시된 WUF-B 상세 규정을 따라 강종(SM, SN), 보플랜지두께, 보의 춤을 변수로 기둥-보 접합부 실대 실험체 2개를 제작하여 실험을 수행하였으며, 내진성능 평가를 위한 가력 방법 및 내진성능을 평가하였다. JB-1, JB-2 실험체는 AISC Seismic Provisions(2005)에서 제시하고 있는 OMF와 SMF 내진성능을 만족하는 결과를 나타났으며, 보플랜지 두께와 보의 춤에 따른 WUF-B 접합부의 내진성능이 재정의 될 필요가 있는 것으로 사료된다. The brittle failure where is occurred the welding position of column-beam flange of WUF-B connection that consider about a seismic detail possess a superior ductility capacity before Northridge earthquake 1994, require newly study about WUF-B connection. SAC Steel Project suggests a seismic detail to FEMA-350 by supporting of FEMA. It revise shape of weld access holes of WUF-B connection, welding processand welding material etc, In spite of these revision, AISC Seismic Provisions (2005) prescribe WUF-B connection using an only OMF. Recently in Korea, as the earthquake of about seismic intensity 5 occur, the necessity of revision for connection seismic detail comes to the front in Korea and FEMA-350 connection seismic details are going to include in KBC-2008 as it is. In this study, two column-beam connection specimens were marked by using SM490, SN490 built-up H-section, and based on WUF-B detail prescription of FEMA350. The parameters of the specimens are types of steel (SM, SN), and evaluate the capacities of structure and seismic by experiment. Finally we confirm a superior ductility capacity aboutspecimens JB-1 and JB-2, using SM490 and SN490,and these specimens had sufficient OMF and SMF seismic capacity, as indicated in AISC Seismic Provisions (2005).

신경인지재활치료가 뇌졸중 환자의 편측무시에 미치는 효과

김선희0(Sun Hee Kim),존은미(Eun Mi Jeon),문영주(Young Ju Moon),임연주(Yean Ju Lim) 한국인지운동치료협회 2013 한국신경인지재활치료학회지 Vol.5 No.1

본 연구의 목적은 신경인지재활치료가 뇌졸중 환자의 편측무시에 미치는 효과에 대해 알아보고 기초 자료를 제공하고자 한다. 방법: 연구대상은 뇌졸중으로 인한 좌측 편마비 진단을 받은 1인으로 개별실험 연구 설계를 적용하였다. 대상자 선별을 위해 한국판 간이정신상태검사(MMSE-K)와 시지각검사(MVPT)를 사용하였고, 편측무시 정도 변화 측정을 위해 선나누기검사(line-bisection test)와 시계그리기 검사(clock drawing test)를 사용하였다. 연구는 신경인지재활치료를 적용하기 전, 적용한 후, 추적 조사의 결과를 측정하였다. 결과: 연구결과 대상자는 선나누기 검사에서 치료 전에는 평균 43.3mrn의 오차였던 것이 신경인지재활치료를 적용한 후 평균 37mrn으로 줄어들었다. 추적 조사 결과에서는 평균 39.6mrn의 오차가 있었는데, 치료 후에 비해 오차가 늘었지만, 치료 전보다 오차가 줄어들었다. 시계그리기 검사는 치료 전에서는 1점이었는데 신경인지재활치료를 적용한후2점으로 향상되었고, 추적 조사결과 2점으로 유지되었다. 결론: 뇌졸중 환자의 편측무시를 감소시킬 수 있는 치료 중 재프로그램으로 신경인지재활치료가 적용될 수 있을 것으로 사료된다. Objective: The aim of this research is to provide basic data about the effects of Neurocognitive Rehabilitation Treatment on the hemineglect of stroke patients. Methods: The subject of the present study was one person diagnosed as left hemiplegia due to stroke and a single subject experimental research design was applied. Korea Mini Mental State Examination (MMSE-K) and a visual perception test (MVPT) were used to select the subject, and the line-bisection test and clock drawing test were used to measure an alteration of the unilateral neglect degree. The study measured results before and after the application of neurocognitive rehabilitation therapy, and results of the follow-up study. Results: According to the results of the present study, in the line-bisection test, an error of 43.3mm in average before the neurocognitive rehabilitation therapy decreased to 37mm in average after the application of the therapy. In the follow-up study results, there was an error of 39.6mm in average, which decreased after the therapy. In the clock drawing test, the score was I point before the therapy, but it increased to two after the neurocognitive rehabilitation therapy, and the result of the follow-up study remained at two points. Conclusion: We believe Neurocognitive Rehabilitation Treatment may be applied as a treatment mediation program that may be used to reduce the hemineglect of stroke patients. (J Korean Society of Neurocognitive Rehabilitation 2013;5;47-53)

대만과 우리나라의 수학 교육체계 및 대수 교육과정과 교과서 비교 -TIMSS 2007 결과를 중심으로-

김선희,김경희,Kim, Sun-Hee,Kim, Kyeong-Hee 한국수학사학회 2010 Journal for history of mathematics Vol.23 No.4

Chinese Taipei won the first place at the mathematics achievement of TIMSS 2007. Especially, there was a significant difference in the percentage of correct answers between Chinese Taipei and Korea, and Chinese Taipei' percentage of correct answers was higher than Korea. This study compared the education system, mathematics instruction environment, and instructional activities of two countries. And for algebra, curriculum and textbooks were compared between two countries based on TIMSS 2007 framework. It was found that Chinese Taipei emphasized homework and test, and MCFL of that was low. Their textbook was formal, and induced the hasty abstraction, Also, some themes were introduced earlier than Korea and repeated across different grades. TIMSS 2007 결과에서 국저l 성취 순위 1위를 차지한 대만에 비해 우리나라는 대수 영역에서 통계적으로 유의하게 낮은 정답률을 보였다. 이에 본 연구에서는 대만의 목표, 수학 수업 환경, 수학 수업 활동을 우리나라와 비교하고, 대수 영역의 교육과정을 구체적으로 살펴보았다. 특히, 우리나라의 정답률이 대만의 정답률에 비해 낮은 대수 영역의 '패턴'과 '대수식'의 주제의 개념 도입 순서, 교과서 내용 전개에 대하여 TIMSS의 평가목표별로 분석하였다. 일반적으로 대만의 수학교육은 학생 특성으로 연해 교사들이 수업에 제약을 많이 받고 있었고 우리나라보다 숙제와 시험을 강조하는 경향이 있었다. 대만의 교과서는 정의, 성질 위주로 제시되는 다소 형식적인 모습이었으며 다소 성급한 유도하고 있었다. 그리고 수의 연산 법칙 문자, 방정식, 부등식, 곱셈공식, 이차 방정식, 피타고라스의 정리 등의 내용이 우리나라보다 이른 시기에 도입되고 여러 학년에 걸쳐 중복하여 다루어지는 경향을 보였다.

홍국발효 대두의 항산화 및 항당뇨 활성

김선희,강순아,Kim, Sun Hee,Kang, Soon Ah 한국식품영양학회 2021 韓國食品營養學會誌 Vol.34 No.2

This study was performed to investigate the antioxidant and antidiabetic activities of soybean fermented with Monascus. Also, the changes in the content of isoflavones and Monacolin K were analyzed. It was observed that the glycoside forms of daidzin and genistin were converted to aglycones of daidzein and genistein within 6 days of fermentation. The product can be used as a health functional material that can increase bioavailability. Monacolin K production was found to increase significantly with the progression of fermentation with an increase to 0.04 mg/g and 0.44 mg/g on 6 and 12 days of fermentation, respectively. The DPPH radical scavenging activity of soybean fermented with Monascus was significantly increased compared to that of soybean. The protein expression of inflammation-related genes (TNF-α, IL-6, and COX-2) in the MIN cell was significantly increased in the presence of alloxan compared to the normal group, but a decrease was observed in the presence of soybean fermented with Monascus. In conclusion, soybean fermented with Monascus showed the highest antidiabetic and antioxidant effects. These results suggest that soybean fermented with Monascus has the potential to be used as a beneficial ingredient with antidiabetic and antioxidant effects.

청년 한국인의 초역치 미각강도에 대한 성, 미각기호 및 흡연의 영향

김선희,허윤경,최재갑,Kim, Sun-Hee,Hur, Yun-Kyung,Choi, Jae-Kap 대한안면통증구강내과학회 2005 Journal of Oral Medicine and Pain Vol.30 No.2

The aim of this study was to measure the suprathreshold taste intensity for sucrose, NaCl, citric acid, and quinine HCl in Korean young people using a whole-mouth, sip-and-spit procedure, employing the method of magnitude matching. The results were analysed in terms of sex, taste preference, and smoker or nonsmoker. One hundred twenty three subjects (61 male and 62 female, mean age of 25.2$\pm$2.1 years) were included for the study. Subjects were instructed to give nonmodulus magnitude estimates to the intensities of five concentrations each of sucrose, NaCl, citric acid, and quinine HCl; distilled water; 6 loudness levels of a 1,000-Hz tone, using the same 9-point intensity scale. Each of the 21 taste stimuli and 6 auditory stimuli are presented in random order twice. The auditory function is used to assess the absolute intensity function of the subject's taste system. The results were as follows; 1. The perceived taste intensity for sucrose, NaCl, citric acid, and quinine HCl increased progressively as the concentrations of taste solutions were increased. Most of the subjects are standing within the zone of mean value $\pm$1standard deviation in their total perceived intensity score, and nobody is outside the limit of mean value - 2standard deviation. 2. There were not significant difference in total perceived intensities for sucrose, NaCl, citric acid, and quinine HCl between males and females. 3. There were not significant difference in total perceived intensities for sucrose, NaCl, citric acid, and quinine HCl according to the difference in taste preference. 4. There were not significant difference in total perceived intensities for sucrose, NaCl, citric acid, and quinine HCl between smokers and non-smokers in males.

TIMSS 결과에 나타난 우리나라 교실내 수학 교육의 변화 추이 분석

김선희,김수진,Kim, Sun Hee,Kim, Soojin 한국수학사학회 2012 Journal for history of mathematics Vol.25 No.4

본 연구는 1995년부터 2007년에 이르기까지 4회에 걸친 TIMSS의 학교장과 수학 교사 설문 결과를 분석하여 우리나라 수학 교실 내에서의 수학교육의 변화를 수학 교수 학습 방법, 평가, 교사의 전문성 측면에서 살펴보았다. 교수 학습 방법에서는 수준별 수업이 최근 많이 실시되고 있으며, 교사보다 학생 중심의 활동 비중이 수업에서 늘어났고, 숙제 빈도는 늘었으나 소요 시간은 많지 않으며 숙제는 여러 가지 방법으로 수학 수업과 연계되도록 활용되고 있음이 나타났다. 수학 평가 문항은 객관식이 많이 활용되고 있고 다양한 방법의 평가가 점차 많이 활용되고 있었다. 수학 교사의 전문성 측면에서, 교사들은 고령화되고 있으며 수학과 수학교육 전공자가 늘었고 수학을 가르칠 준비에 자신감이 많지 않았다. 그러나 수학 교사들은 동료와 다양하게 상호작용을 하는 경향이 있었고 연수 참가 비율은 연수 내용에 따라 증감이 있었다. This study researched the trends of mathematics education in Korean mathematics class in the aspects of teaching and learning method, assessment and teachers' competency based on TIMSS 1995, 1999, 2003 and 2007. For the mathematics teaching and learning method, the differentiated instruction rate is higher. The activities focused on students not teacher are more, and frequencies of homework are higher but time spent for homework is less than the past. Especially, mathematics teachers link homeworks to instructions. And mathematics teachers uses more multiple choice items and more various assessment methods than the past. The average age of mathematics teachers tends to become older since 1995. The major of mathematics teacher are primarily mathematics and mathematics education. Korean mathematics teachers have less self-esteem for teaching mathematics contents and have more various interactions with peers. The rate of participating in-service training is more or less according to training contents.

한국어 원거리 음성의 운율적 특성

김선희,김종진,이숙향,Kim Sun-Hee,Kim Jong-Jin,Lee Sook-Hyang 한국음향학회 2006 韓國音響學會誌 Vol.25 No.3

본 논문의 목적은 한국어 원거리 음성의 운율적 특성을 규명하는 것으로, 36개의 2음절어를 4명의 화자 (여성 화자 2명, 남성 화자 2명)가 원거리 환경과 일반환경에서 발화한 총 288개의 2음절어를 분석대상으로 하였다. 실험 결과 지속시간과 에너지의 경우는 일반 음성에 비하여 원거리 음성의 첫음절에 대한 둘째음절의 비율이 유의미하게 큰 것으로 나타났다. F0 대역폭의 경우에도 원거리 음성에서의 대역폭이 평이 음성에 비해 큰 값을 보였다. 억양 패턴에 있어서는 원거리 음성의 경우에 둘째음절에 'HL%'의 복합 경계성조가 실현되거나 첫음절에 'L+H' 성조가 실현되기도 하였으며 이 두 가지가 한 단어에 모두 실현되는 경우도 있었다. The aim of this paper is to investigate the prosodic characteristics of Korean distant speech. Four speakers (2 males and 2 females) produced 36 2-syllable words in both distant-talking and normal environments. totaling 288 spoken 2-syllable words. The results showed that ratios of second syllable to first syllable in vowel duration and vowel energy were significantly larger in the distant-talking environment compared to the normal environment and f0 range also bigger in the distant-talking environment. In addition, 'HL%' contour boundary tone in the second syllable and/or 'L+H' contour tone in the first syllable were used in the distant-talking environment.

종양(腫瘍)의 치법(治法)에 관(關)한 실험적(實驗的) 연구(硏究) -부정법(扶正法), 부정거사법(扶正祛邪法), 공사법(攻邪法)의 비교연구(比較硏究)-

김선희,최종백,김상찬,Kim, Sun-Hee,Choi, Jong-Baek,Kim, Sang-Chan 대한한의학방제학회 1997 大韓韓醫學方劑學會誌 Vol.5 No.1

This study was aimed to investigate the anti-tumor and immune response effect of Samyongtang(S1; this medicine represents for 'ENERGIZER'), Yangjeongjejeoktang(S2; this is the 'INTERMEDIATE METHOD' of S1 and S3) and Onbeakwon(S3; this is 'ATTACK' the disease of mass) on the experimental rats induced by Sarcoma-180 and Methotrexate. And to observed the differences S1, S2, and S3 treatment groups. Tumor weight(TW) in vivo, interleukin-2(IL-2), hemagglutinin titer(H.A), hemolysin titer(HL), rossete forming cell(RFC), delayed type hypersensitivity(DTH), and natural killer cell activity(NKCA) in vivo were measured in rats. The obtained results were summarized as follows. 1. Tumor weight was decreased in all treatment groups (S2>S3>S1) as compared with control group, but the difference was not statistically significant each treatment groups. 2. Interleukin-2 was increased in all treatment groups (S1>S2>Ss) as compared with control group, but the difference was not statistically significant each treatment groups. 3. Hemagglutinin titer was increased in all treatment groups (S1>S2>S3) as compared with control group, but the difference was not statistically significant each treatment groups. 4. Hemolysin titer was increased in all treatment groups (S1>S2>S3) as compared with control group, but the difference was not statistically significant each treatment groups. 5. Rossete forming cell(RFC) was increased in all treatment groups (S1>S2>S3) as compared with control group, but the difference was not statistically significant each treatment groups. 6. Delayed type hyperseneitivity(DTH) was increased in S1, S2 treatment groups (S1>S2) as compared with control group, but it was decreased in S3 treatment group. Therefore, S1 group was statistically significant compared with S3 groups. 7. Natural killer cell activity(NKCA) was increased in all treatment groups (S2>S3>S1) as compared with control group, but the difference was not statistically significant each treatment groups. Based on the above mentioned results, it is suggested that S1, S2 and S3 will have anti-tumor substances and enhance effect of immune response. But the differences were not statistically significant in each treatment groups, except for delayed type hypersensitivity.