하악전돌증의 악교정수술후의 회귀성향에 관한 연구

서연호,서혜경,문선혜,박노부,이용오 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.2

저자등은 악교정수술후에 발생하는 희귀성향에 관한 연구를 위하여 계명대학교 의과대학 치과학교실에 내원하여 하악전돌증으로 진단되어 하악후퇴술을 받은 7명의 환자를 대상으로 하여 수술전, 후의 경조직의 변화를 계측, 분석하여 다음과 같은 결과를 얻었다. 수술직후 Gn(H)는 평균 8.2mm 후방이동되었고 SNB는 평균 4.4 감소하였다. SNB는 장기간 경과후 수술직후보다 평균 0.9 증가되었으며 21.1%의 희귀율을 나타내었다. Gn(H)는 장기간 경과후 수술직후보다 6례에서 평균 1.3mm 전방희귀되었으며 나머지 1례에서 4mm 후방이동되었다. SN-MP 및 gonial angle 은 장기간 경과후 수술 직후보다 각각 평균 2.2 ,5.8 증가되었다. Gn(V)는 장기간 경과후 수술직후와 비교하여 변화가 없는 경우가 4례, 증가 2례, 감소 1례로 나타났다. 상하악 중절치는 장기간 경과후 수술직후보다 각각 순측 혹은 설측으로 경사되었다. This study was undertaken to examine relapse tendency after mandibular setback. Seven cases were selected from patients who underwent orthodontic treatment and mandibular setback surgery in our department. The serial lateral cephalogram of each patient were obtained and analyzed: The result were as follows; 1. By operation, Gn(H) moved backward (average 8.2mm), SNB angle decreased(average 4.4˚). 2. When the long term follow-up measurements were compared with the immediate postop, mesurements. ·SNB angle increased on average by 0.9˚and relapse tate was 21.1%. ·GN(H) returned foward on average by 1.3mm in 6 cases, moved backward by 4mm in 1 case. ·SN-MP and gonial angle increased on average by 2.2˚, 5.8˚respectively. ·Gn(V) stayed unchanged in 4 cases, increased in 2 cases, decreased in 1 case. ·Upper and lower incisors slightly moved labially or lingually.

초등학교 자녀의 구강보건에 관한 학부모의 인식 및 행동

한수진,문혁수,정재연,김영경,이병진,김은경,정혜련 韓國學校保健學會 2001 韓國學校保健學會誌 Vol.14 No.1

The purpose of this study was to collect basic data for the development of oral health education program of parents and to encourage their actual interest and participation in school oral health program. The authors surveyed parents' awareness and behaviors about the oral health of their children. The subjects in this study were 193 parents of elementary school children in Seoul. The collected data were analyzed, the obtained results were as follows: 1. Thirty-five percent of the parents investigated paid a regular visit to a dental clinic. The must common tooth brushing time among them was after dinner, the second was after breakfast, and this was followed by before bedtime and before breakfast. 2. Ninety-four percent of the parents responded that prevention is necessary, 92.2% had a plan to visit a dental clinic to prevent dental caries, and 60.1% experienced receiving pit and fissure sealants. Ninety-seven percent responded that they did check their children's dental caries. 54.9% chocked their children's oral status after tooth brushing. The parents who visit a dental clinic on a regular basis were more likely to check their children's teeth after tooth brushing than those who don't(P<0.05). 3. Eighty eight percent of respondents wanted to keep the fluoride mouth rinse program. 4. It is recommended that an oral health education program be developed for parents to visit dental clinics on a regular basis, to educate as to the right tooth brushing time, and to check out their children's oral status after tooth blushing.

담배 callus와 fungal elicitor의 co-culture에 의한 Antifungal agent 생산

이인순,문혜연 大邱大學校 科學技術硏究所 1996 科學技術硏究 Vol.3 No.1

In order to antifungal agent production, effect by co-culture fungal elicitor and tobacco callus were investigated. Fungal elicitor prepared from F.oxysporum and F.solani. F.oxysporum elicitor was the best in enhancement of antifungal agent between the two fungal elicitor tested. Because it included 12% polysaccharide. The optimum time and pH of treated F.oxyspomm elicitor for antifungal agent production were 12hours to 84hours and pH6.0±2 in medium. In order known in vitro antifungal activity tested Fusarium oxysporum, Fusarium solani, Phytophthora capsici, Trichocherum viridet The inhibition rate of each was 30%, 6.7%, 24.5%, 67.3%. The specific of substrate condition do not saw.

Antocyanin유도와 유묘성장에 미치는 염의 효과

이인순,문혜연 大邱大學校 科學技術硏究所 1996 科學技術硏究 Vol.3 No.1

Salt tolerance at germination and seedling emergence was examined in cabbage (Brassica oleracea) and red-pepper (2520). Germination and seedling growth varied depending on salt type and concentration. This different responses for salts seemed to be as a result of the presence of Cl- ion concentration. The anthocyanin production of seedling growth was enhanced 0.35M NaCl in case of cabbage and 0.05M NaCl, KCl in case of red-pepper.

Salt stress에 의한 고추와 양배추의 유묘성장 억제와 Proline의 축적

이인순,문혜연 대구대학교 과학기술연구소 1997 科學技術硏究 Vol.4 No.1

The seed of Brassica spp, and Capsicum spp, differing in salt stress were subjected to various levels of salinity conditions (Na-gluconate, K-gluconate, NaCl, KCl). Salt stress was measured by seedling growth and proline content of the stressed plants. Each seedling studied responded differently to salt stress. Seedling growth of Capsicum spp. was inhibited up to 200mM salt tolerance and growth Brassica spp, was inhibited up to 400mM salt tolerance. The effects of salinity condition on changes in the proline levels in seedling and root growth of each seedling were investigated. High salt concentration was effective in inhibiting root growth and in increasing proline accumulation in roots. The inhibition of root growth and accumulation of proline in seedling was caused osmotic hypersensitivity by salinity stress. Result suggest that proline accumulation was relation to tissue development by salt. The relationship between growth inhibition of seedling caused by salt and change in the proline level on roots is discussion.

당근조직으로부터 salt hypersensitivity에 의해 유도되는 Anthocyani 대량 생산

이인순,문혜연 大邱大學校 科學技術硏究所 1999 科學技術硏究 Vol.5 No.5

The carrot callus in salinity stress was subjected to various levels of salinity conditions(NaCl, Na-gluconate, KCI, K-gluconate). Salinity stress was measured by anthocyanin and proline products. The carrot callus was induced by MS(Murashig & Skoog, 1962, pH 5.8)medium containing 0.5mg/I IAA, 2.Omg/I kinetin, and 3% sucrose. Callus was cultured during 20 days at dark condition, 25℃. The carrot callus was treated at various concentration of salinity during 10 days. The product of anthocyanin was separated high value at 200mM K-gluconate. A large amount of anthocyanin was produced from 2 days to 8 days of culture time in the case of Na^(+) ion and it was was observed from 2 days to 5 days of culture time in the case of K^(+) ion. These results were due to Cl- ion. The movement from cytosol to vacuole of Cl^(-) ion was occurred homeostasis because the ions of sodium and potassium were different to function in affinity of ion transporter. The product of proline was separated high value at 2OOmM KCl. Proline metabolism in callus has attracted in the response to hyperosmotic stress. This amino acid is the most common organic osmoprotectant. The concentration of osmolytes such as proline increases, the K^(+) ion concentration decreases because the KCl and K-gluconate has high value.

초등학교 고학년 학생의 구강보건에 관한 인식 및 행동

김영경,문혁수,정재연,한수진,이병진,김은경,정혜련 韓國學校保健學會 2001 韓國學校保健學會誌 Vol.14 No.1

The purpose of this study was to collect basic data for the development of effective oral health education program in elementary school. The subjects in this study were 604 fourth-year, fifth-year and sixth-year students of an elementary school in Seoul. Oral health awareness and behaviors were surveyed and analyzed. The findings of this study were as follows: 1. The most common time for toothbrushing was after dinner(62.0%) and before bedtime(62.3%). By school year, the largest number who brushed their teeth after dinner were fourth and fifth graders while the greatest number who did so after breakfast were sixth graders Seventy-four percent of respondents brushed the teeth twice or more a day. By school year, the fifth-year students brushed their teeth the least while girls outperformed the boys in daily toothbrushing frequency(p<0.05). Regarding the intake of cariogenic food, 62.1% took that kind of food once or more a day. By school year, the fifth graders took the most (p<0.05), and girls took more cariogenic food than the boys(p<0.05). 2. Ninety percent of the respondents had visited a dental clinic. By grade, the sixth-year students had visited a dental clinic more frequently and girls more frequently than boys. Eighty percent of the respondents visited a dental clinic to receive treatment but just 12.3% visited a dental clinic to prevent oral diseases. Concerning the fetor of dental treatment only 14.4% expressed fear. School year made no difference, yet the percentage of girls who experienced fear was higher than that of boys(P<0.05). Regarding preventive treatment, 39.7% experienced pit and fissure sealing and 24.2% experienced the application of fluorides. All the students hadn't much experience in preventive treatment regardless of school year -- gender didn't make a difference. 3. Fourty-six percent of respondents had a preference for the fluoride mouth rinsing program; 38.4% wanted that grogram to continue. As to the reason for preference, 38.2% preferred it because of the prevention of dental caries, 43.0%, the largest percentage, didn't favor it because they found it too much trouble to do(some of the respondents gave two different answers). 4. Despite an increase in the frequency of toothbrushing at the right time, they still took cariogenic food frequently Their visit to a dental clinics also aimed at treatment more than at prevention, and they had very narrow experience of preventive treatment. Furthermore, the fluoride mouth rinsing program failed to draw their interest. Therefore, it is recommended that a successful real health education program should be developed.

옥수수種子로부터 抗진균성 chitinase의 분리와 특성에 관한 연구

이인순,문혜연 대구대학교 과학기술연구소 1997 科學技術硏究 Vol.4 No.1

Plant exhibit an altered pattern of protein synthesis in response to pathgen invasion and abiotic stress. One of these pathogenesis-related protein has been identified as chitinase, which is capable of hydrolysis fungal cell wall of inhibiting growth. This observation has led to the suggestion that the in vivo role of chitinase is to protect plants against fungal invasion. We purified chitinase from Zea mays L. Golden cross Bantam T-51 by CM-cellulose chromatography. The purified chitinase has a molecular weight of approximately 24kD as detected by SDS-PAGE. In order to known in vitro antifungal activity tested F.oxysporium, F.solani and T.viride. The inhibition rate of each was 35.3%, 18.2%, 52.4%. The specific of substrate condition saw high activity to swllen chitin. The essence of enzyme activity conditions were 30℃±2, pH5.0±0.05, and Zn^(++) ion.

대학생들의 자기이미지가 의복 혁신성과 동조성에 미치는 영향

서민정;김연희;윤송이;서문숙;이규혜 한양대학교 2008 韓國 生活 科學 硏究 Vol.28 No.1

The purpose of this study was to examine self images as antecedents of clothing innovativeness and conformity. A survey questionnaire was made for the empirical research. 206 university students living in Seoul metropolitan area participated in the study. The data were analyzed using factor analysis, Chi-square, t-test, ANOVA, and stepwise regression. The self image measures were classified six factors (free, affirmative, self-centered, traditional, sensual, and feminine image). According to regression analysis, fashion innovativeness was affected by free, traditional, sensual image, and conformity was only influenced by traditional image. Respondents were classified into four groups by innovativeness and conformity scores; Low innovativeness/Low conformity group(LI/LC), Low innovativeness/High conformity group(LI/HC), High innovativeness/Low conformity group(HI/LC), and High innovativeness/High conformity group(HI/HC). For LI/LC consumers, innovativeness was affacted by the sensual self image. For LI/HC consumers, and innovativenss was affected by the feminine self image. The conformity of HI/LC were influenced by traditional self image.

연산 증폭기 (TL494) 를 이용한 DC/DC 승압 컨버터 제어 시스템 설계

정구종,이혜연,문경주,정유석,이준영,손영익 明知大學校 産業技術硏究所 2009 産業技術硏究所論文集 Vol.28 No.-

A simple control system using an op Amp (TL494) is presented for a DC/DC boost converter. The DC/DC boost converters have many industrial applications including renewable energy sources and hybrid automobiles. The problem of regulating the output voltage in the presence of load variation has been a research subject of interest for many years. After computer simulations with SimPower system of Matlab Simulink, we have developed the converter system in university laboratory according to the design specifications. Since the chip TL494 has both op Amp and PWM comparator even beginners can easily develop the control system. Experimental results show that the proposed system has some robustness with respect to the load variation.