숯 날염에 의한 부직포의 특성 변화

신정숙,박순자,정명희,田村照子,小紫朋子 한국의류학회 2004 한국의류학회지 Vol.28 No.2

The purposes of this study were to investigate characteristic changes on nonwoven fabric by the charcoal printing. It separate grind charcoal as two different size of particles 45-52㎛ and 53-65㎛ for hand screen printing on three kind of nonwoven fabrics. To examine the effect of charcoal printing on nonwoven fabric were to obwerve surface changes by a scanning electron microscope, dyeability by using spectrophotometer, moisture regain by oven method, air permeability, anion property, deodorization and antibacterial activity. The results were as follows: When charcoal powder concentration increased from 3 to 9%, K/S value also increased from 3.06to 8.55. When charcoal concentration increased, moisture regain also increased. In same concentration, moisture regain occurred higher as particle of small size. Air permeability decreased when the charcoal printing concentration increased. Anion occurrence appeared 140-160ion/㏄ from three different kinds of nonwoven fabrics in 3% and 9% charcoal concentration. Therefore, occurred anion ineffectively. In concentration of 3%, rate of deodorization measured as 89%, 83% and 87%, and 9% concentration caused 96%, 86% and 93% of high deodorization. Antibacterial activity examination in nonfinished nonwoven fabric resulted range of 60% however, 3% and 9% concentration finished nonwoven fabric resulted 99.9% of excellent antibacterial activity.

XML 문서의 검색 성능 평가

신인혜,선경희,강순철,박경린 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.1

대부분의 사용자들은 자료를 저장하고 검색하기 위하여 관계형 데이터베이스를 사용하여 왔는데, 최근에 차세대 웹문서의 표준으로 주목받고 있는 XML은 데이터베이스와 같이 자료를 표현, 저장, 검색할 수 있는 기능을 가지고 있다. 본 논문에서는 임의로 생성한 검색대상 자료를 데이터베이스에 테이블로 저장하여 검색하는 방법과 XML 문서로 저장하여 검색하는 방법의 검색시간이 성능비교를 행하였다. 성능평가 결과, 검색 파일의 레코드 수가 약 1만개 이하인 경우에는 XML 문서를 이용한 검색이 빨랐고, 그 이상인 경우는 데이터베이스를 이용한 검색 시간이 월등히 빨랐다. XML 관련 검색 파일들을 세부적으로 XML 문서를 저장하는 방법(어트리뷰트로 혹은 엘리먼트)과 C#에서 XML 문서를 읽어드리는 방법(XPath을 혹은 DOM)에 따라 성능평가를 하였는데 XML 문서 작성시 어트리뷰트로 구성하고 마이크로소프트 닷넴 프레임워크에서 제공하는 XPath를 이용하여 XML 문서를 검색하는 방법이 가장 효율적이었다. While most of users have used relational databases to store and search data. XML documents also can represent, store, and search these data like database systems. This paper compares the search time of data in the XML documents with those in database systems. The performance comparison shows that the search time using the XML document is faster than that using database when the number of records is less than then thousand. However, the latter is much faster than the former when the number of records is more than ten thousand. The XML documents can be consist of either using Attributes of Elements. Also, the document can be read either using DOM or XPath. The performance comparison shows that the XML document made up of Attributes and being read using XPath in Microsoft Net Framework provides the fastest search time.

先加力 후 補修-補强한 鐵筋콘크리트 壓縮部材의 構造特性에 관한 實驗的 硏究

신용석,최진석,김판선,조철희,손순채,김정섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

This study examined the Stress and structural characteristics of reinforced concrete compressive member repair and strengthening by CFS and GFS after pre-loading. The following results were obtained. The results of compressive testing by the kind of fiber suggested that: In CFS, Specimen increased by about 26.9% and strengthening after pre-loading, by about 111.8%, compared with after strengthening, In GFS, Specimen increased by about 69.0% and repaired and models after pre-loading, by about 76.7%, compared with after strengthening. In the compressive testing, strengthen with CFS-Specimen showed a brittle fracture and strengthen with GFS-Specimen represented ductile fracture. More increasing in stress of Specimen, and repair and Strengthening specimen after pre-loading than loading specimen after strengthening suggested the strengthen effect of fiber.

울금(Curcuma aromatica S.) 추출물의 항균효과

이신호,최우정,임용숙,김순희 대구효성가톨릭대학교 식품과학연구소 1997 식품과학지 Vol.9 No.-

천연물에서의 항균성 물질의 검색과 김치제조에 응용할 목적으로 울금 ethanol 추출물의 김치 발효관련 유산균과 병원성 미생물이 대한 항균력과 울금추출물을 김치제조시 1% 첨가하여 10℃에서 숙성시키면서 숙성중 변화를 관찰한 결과 울금 ethanol 추출물은 유산균 4 균주와 병원성 균주에 대해 높은 항균효과를 나타내었고 유산균은 배양 12시간 후 울금 첨가구에서 생균수가 감소하였고 병원성 미생물은 성장은 2~3 log_(10) cycle의 억제효과를 나타내었다. 김치 숙성 중 pH, 산도는 숙성 10일 이후부터 숙성 지연효과가 있는 것으로 관찰되었으나 미생물의 변화는 대조구와 첨가구가 숙성 5일 이후로 차이를 보였으나 뚜렷한 억제경향은 보이지 않았다. 울금 추출물을 첨가한 김치에 대한 관능검사는 숙성 전기간에 걸쳐 대조구에 비해 첨가구의 기호도가 떨어지는 것으로 관찰되었다. Antimicrobial effect of ethanol extract from Curcuma aromatica S.(CA) and its effect on kimchi fermentation were investigated. Antimicrobial activities of the extract against 4 kinds of lactic acid bacteria isolated from kimchi and 6 kinds of pathogenic bacteria showed apparently. The growth of the tested bacteria did not occur in modified MRS broth containing 1% of CA except three strains of Listeria monocytogenes. The pH of kimchi containing 1% of Curcuma aromatica S. extracts was higher than that of control but titratable acidity, total bacteria count and Lactobacilli count were lower than control during fermentation for 25 days at 10℃. The sour taste of CA added kimchi was weaker than that of control. Sensory score of flavor did not show significant difference between CA containing kimchi ant control but overall acceptability of CA added kimchi was lower than control during fermentation.

Listeria monocytogenes Scott A 의 성장과 열저항성에 미치는 유기산의 영향

이신호,조현순,김순희 대구효성가톨릭대학교 식품과학연구소 1994 식품과학지 Vol.6 No.-

유기산(acetic, tartaric, propionic, citric 그리고 lactic acid)에 의한 L. monocytogenes Scott A의 성장과 열저항성에 미치는 영향을 겸토한 결과 각 유기산 0.1%를 첨가한 경우 배양 48시간 동안 대조구에 비해 뚜렷한 성장억제현상이 관찰되었으며, 배양중 pH는 대수적 증식 말기인 12시간째 대조구 5.17, propionic acid첨가구 5.57인 반면 그외 유기산 첨가구의 pH는 4.60~4.88였다. 0.2%의 유기산을 첨가한 경우 acetic acid 또는 propionic acid 첨가구에서는 배양 48시간 동안 성장이 거의 일어나지 않았다. 각 유기산으로 pH 5.0과 6.0으로 조절한 TSB를 기질로 사용하여 65℃에서 1분간 처리하여 열저항성을 비교한 결과 pH 5.0에서는 유기산의 종류에 따라 열처리 효과는 상이하였으며, citric acid 또는 propionic acid 처리구의 log reduction이 각각 1.56, 1.79로 열처리 효과가 가장 높았으며 pH 6.0에서 열처리효과는 유사한 경향을 나타내었다. 각 유기산을 사용하여 pH 5.0과 6.0으로 조절한 0.1M sodium phosphate를 열처리 기질로 사용한 경우 pH 5.0에서 propionic acid처리구와 lactic acid의 처리구의 열처리효과가 가장 높았다. TSB에 유기산을 첨가하여 pH 5.0으로 조절한 후 65℃에서 adherent microlony의 열저항성을 검토한 결과 propionic acid처리구의 log reduction은 1.21을 나타내어 열처리효과가 가장 높은 것으로 관찰되었으며, adherent microcolony는 planktonic cell에 비해 강한 열저항성을 나타내었다. The effects of organic acids on growth and heat resistance of Listeria monocytogenes Scott A were investigated. The growth of L. monocytogenes was inhibited in Tryptic Soy Broth(TSB) with 0.1 or 0.2% of acetic, tartic, propionic, citric and lactic acid at 35℃, respectively. The growth of L. monocytogenes did not occur in TSB with 0.2% of acetic acid or propionic acid during 48h of incubation. The heat resistance of L. monocytogenes was affected by kind of organic acid, pH and heating substrate. L. monocytogenes showed more heat resistant in TSB with various organic acids than in 0.1M sodium phosphate with the same organic acids. Heat resistance decreased as pH of heating substrate decreased. Surface-adherent microcolony was more heat resistant than planktonic cell of L. monocytogenes. Propionic and lactic acids more affected on heat resistance of L. monocytogenes than acetic, tartaric and citric acids.

사전 정보제공 및 지지적 간호가 방사선치료 환자의 불안감소에 미치는 효과에 관한 연구

박진희,신순복 中央醫學社 1991 中央醫學 Vol.56 No.12

This study was conducted to identify the effect of supportive care in reducing anxiety of cancer patients receiving radiotherapy. The data were obtained from 55 cancer patients (30 control group and 25 study group) who were receiving radiotherapy at the Kosin Medical Center in Busan. Data for control group were collected from July 1, to August 10, 1989. Anxiety level of the controls was measured with Spielberger's self-reproting STAT (StateTrait Anxiety Inventory) just before the radiotherapy. Data for study group were collected from August 16, to October 10, 1989. Study group was provided with the information for radiotherapy and supportive care one day before the therapy. Anxiety level of the study group was measured in the same way as the controls. The reliability of the STAT was 7J 0.80769 in this study. The mean score of trait anxiety for control group was 47.53 ± 10.18 and that for the study group was 45.56 ± 10.40. The difference in mean scores was pot statistically significant (p= 0.483). The mean scores of state anxiety for control and study groups were 48.50 ± 12.16, 41.60 ± 9.61, respectively, and the difference was statistically significant (p < 0.001). There was positive correlation between trait anxiety and state anxiety (r= 0.6774, p < 0.001). There was positive correlation between trait anxiety and state anxiety (r= 0.6774, p < 0.001). There was significant difference in state anxiety by employment status (p < 0.05). The difference in state anxiety between two groups remained significant (p < 0.01) after controlling the effect of employ status. Therefore, it is recommended to provide the cancer patients receiving radiotherapy with information for the therapy and supportive care.

사범대학 영어 강의에 대한 학생들의 인식 및 만족도 조사

강순희,서혁,신상근,이종원,이현주,최진영 이화여자대학교 교과교육연구소 2007 교과교육학연구 Vol.11 No.2

이 연구는 교사교육의 국제화를 지향하는 사범대학 특성화 프로그램 개발을 위한 기초 조사 차원에서 2007학년도 1학기에 146명의 사범대학 학생들을 대상으로 전공 영어 강의에 대한 인식과 만족도 등에 대해 설문조사의 방법으로 이루어졌다. 학생들의 영어 능력에 대한 자기 평가 결과, 대부분의 학생들이 자신의 영어 능력이 영어 강의 수강에 부족하고, 영어 강의에 대한 심리적 부담이 크다는 반응을 나타냈다. 또 영어 강의가 한국어 강의에 비해 전공 지식을 쌓는 데 도움이 되었다는 반응은 이공계를 중심으로 한 기존의 연구 결과보다 상대적으로 낮게 나타나는데, 이는 사범대학 영어 강의의 운영과 관련하여 좀 더 다양하고도 효과적인 방안이 고려되어야 함을 시사한다. 영어 강의 수강 시 어려움을 묻는 질문에서 과제 발표하기, 질문하기, 보고서 작성하기의 순으로 어려움을 호소하고 있는데, 이 역시 영어 강의를 위해서는 전반적인 영어 표현 및 이해 능력 향상 이 전제되어야 하며 무엇보다도 말하기, 듣기의 구어 능력 신장이 우선되어야 함을 재확인해 준다. 영어 강의 개선안에 대한 의견으로는 평가 방법의 다양성 및 융통성 확대, 영어 강의 수강을 돕는 전공 교재의 개발, 영어 강의 내에서의 교수-학생 상호 작용 증대, 국제교류의 기회 확대 등의 순으로 높은 반응을 보였다. 이는 향후 사범대학 영어 강의와 관련한 프로그램 개발에 시사하는 바가 크다. 즉, 영어 강의 평가를 결과 중심의 평가뿐만 아니라 과정평가와 수행평가에 초점을 두고, 영어 표현이 어려운 복잡한 사고 과정이 요구되는 경우 제한적으로 국문 반응을 허용하는 방안도 고려할 만하다. 또한 학습자들에게 좀 더 상세화된 강의 교재를 제공하고, 온·오프라인을 모두 활용하여 교수와 학생의 상호작용을 활성화할 수 있는 방안을 적극적으로 탐색할 필요가 있다. 아울러 학생들이 실질적인 국제교류가 가능하도록 다양한 교류 방안 함께 구체적인 강좌 개설도 요구된다.

생활폐기물 소각장 작업복 샘플의 다이옥신 분석

박순자,신정화,신정숙,정명희,안윤경 한국의류학회 2004 한국의류학회지 Vol.28 No.2

PCDD/F(Polychlirinated dibenzo-p-dioxins and dibenzofurans) in both of treated fabric and untreated fabric for working clothes of a municipal waste incineration were determinated. The treated fabric for working clothes was developed for less exposure of PCDD/F in municipal waste incinerations. The total concentrations of PCDD/F in some parts such as surface, middle layer, inside for treated and untreated fabric were investigated. The I-TEQ value of surface was 0.23370ng ·TEQ/g for treated fabric, 0.15355ng ·TEQ/g for non-treated fabric. On the other hand, the value of middle layer was 0.00077ng ·TEQ/g, 0.00177ng ·TEQ/g, respectively. The surface of the treated fabric containing high levels PCDD/F was caused by absorption of them. Therefore, PCDD/F of the treated fabric in middle layer was less I-TEQ value than that of the untreated fabric. The treated fabric makes effect on preventing PCDD/F from permeating into human body.

고도정수처리 공정에서의 천연유기물질 특성변화 및 소독부산물 전구물질의 제거특성 평가

노재순,손희종,박은주,황영도,최동훈,배석문,신판세 慶星大學校 環境問題硏究所 2002 環境硏報 Vol.12 No.1

In this research the movement and apparent molecular weight distribution of hydrophilic/hydrophobic organic matters in advanced water treatment process were investigated using the raw water of Maeri area, located in downstream of Nakdong river, and the variation of the disinfection by-product formation potential was also investigated. In the raw water used in experiments, the content of BDOC (biodegradable dissolved organic carbon) in dissolved organic carbon (DOC) was about 39%, and this value is far above a normal, Pre-ozone treatment showed an increase of 40% in the BDOC content, and this means that biodegradability was remarkably increased by ozone treatment BDOC concentration in BAC treated water was 0.09 mg/L, which means 84% of BDOC removal rate compared with that in post-ozone treated water. The variation of chlorine disinfection by-product formation potential in each process unit of water treatment process was analyzed. TOXFP concentration in raw water was 449 ㎍/L, and the contents of THMFP and HAAFP among TOXFP were 24% and 23%, respectively. The removabilities of these materials BAC process had an order of TOXFP > HAAFP > THMFP. BAC process was less effective for THMFP than others. The distribution of hydrophilic organic matters were evaluated in each treatment process. Hydrophilic and hydrophobic matters in the raw water had a ratio of 50 : 50, and the ozone treatment decreased the content of hydrophobic matters. The BAC treatment made the ratio 85:15. These mean that the removal of hydrophilic matters is more difficult than that of hydrophobic materials in water treatment process. In addition the portions of humic and fulvic acid in hydrophobic matters were analyzed. Fulvic acid a large portion among hydrophobic matters in the raw water, and the portion was 78%. Ozone treatment was more effective on the removal of fulvic acid than humic acid. After BAC treatment, the concentration of residual fulvic acid was high than humic acid. Chlorine disinfection by-product formation for hydrophilic and hydrophobic mattrts was compared in each process unit. in the raw water TOXFP and THMFP formation for hydrophobic matter was higher, and HAAFP was highly formated for hydrophobic matter. After post-ozone or BAC treatment, chlorine disinfection by-product formation has high potential for hydrophobic matters. Comparing humic and fulvic acids, chlorine disinfection by-product formation potential was higher for humic acid than for fulvic acid in all processes. In the comparison of the reactivity with chlorine disinfection by-product per unit DOC, THMFP and DOXFP showed higher reactivity with hydrophobic matter than with hydrophilic matter in all processes, and HAAFP was highly reacitive with hydrophilic matter. Apparent molecular weight distributions of organic matters were investigated in each process step.The content of low molecular weight organic matters less than 1000 Da in DOC was high in all processes except raw water, but molecular weight organic matters more than 1000 da was higher than molecular weight organic matters less than 1000 Da in the formation potential of chlorine disinfection by-product.

증발과 응결에 대한 국민 학생들의 개념 조사

최병순,김효남,강순희,신인철 한국교원대학교 과학교육연구소 1993 청람과학교육연구논총 Vol.3 No.1

The purpose of this study was to investigate and analyze the conception of elementary school students on evaporation and condensation, and then to verify the types of the conception. Forty-eight children from six elementary schools were sampled by stratified random sampling in Seoul and other provinces. They responded to the questionaire and the interview. This study was carried out according to the process of the basic study, the preliminary study, and the main study. The materials collected were classified and analyzed according to the types of children's ideas. The findings of this study were as follows: 1. The vocabulary used to describe the evaporation phenomena varied according to the situations, and the scientific term "evaporation" was more frequently used by the older groups. 2. Most children answered that the last location of water were air/sky/cloud. Air/cloud which represents the scientific conception of the location of water were mentioned by children of all ages. The higher the grade of the children were, the more scientific conception the children mentioned, however. 3. Most children referred to the heat as the factor of evaporation. Wind, on the other hand was mentioned by less than 10% of lower graders, and by about 30% of higher graders. 4. The result of asking children whether they thought it was possible to get the evaporated water back showed that about 70% of lower graders denied the possibility of the water being reversible. About 60% of higher graders, however, recognized that the water will be returned as rain or condensation. This increase may be associated with formal teaching of water cycle. 5. In the ideas of evaporation and condensation, some of the children have supernatural ideas and animism, which are most younger chilren's characteristics.