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      • 차지법-드라이 클리닝에 의한 견직물의 세척성

        윤인주,이정숙 慶尙大學校 기초과학연구소 1991 基礎科學硏究所報 Vol.7 No.-

        The effects of charge system on the removal of water soluble and oily soils from silk fabrics were studied. The charge systems used in this experiments were Light mate DX in petroleum solvent and Light Park MK in perchloroethylene. The detergency was examind with water/detergent ratio and concentration of dry soaps and solvent, respectively. 1. In the case of condition charged with detergents without water, as the concentration of Light Mate DX in petroleum solvent was increased, the detergency of water soluble soils was improved. 2. In the case of condition charged with detergents with water, as water/detergent ratio was increased, the detergency of water soluble soils was improved. Petroleum solvent was superior to perchloroethylene in the detergency as water/detergent ratio was low. 3. In the case of condition charged with detergents without water, the detergency of oily soils of Light Park MK in perchloroethylene was higher than that Light Mate DX in petroleum solvent. The detergency was influenced by characteristics of solvents. The order of the detergency in dry soap concentration was 1.5>1.0>2.0>0.5(%) 4. In the case of condition charged with detergents with water, as water/detergent ratio was increased, the detergency of oily soils in petroleum solvent was decreased. In perchloroethylene, the detergency was not so much affected by water/detergent ratio.

      • 서울 및 경기지역 유아의 이유보충식에 관한 실태조사

        윤은숙,이정윤 서울保健大學 1994 論文集 Vol.14 No.1

        This research was conducted to survey the weaning practice to Koreanwomen, The survey was executed for 417 mothers bringing up a child below 24 months in Seoul and Kyongi province from September to October, 1993. The results are as follows : The average score of knowledge on weaning of respondents was 9.48. Most of the respondents knew the significance or the necessity of supplementary food in terms of weaning. There was significant difference in score of knowledge on weaning according to a level of mother's education. The source of mothers' informations on weaning method showed the newspapers and journals for women, docter and pharmaceutical chemist, TV and radio, friend and relatives were many by the order. The average period when those surveyed began weaning of their infants was 5.03±2.46 months. The tendency of earlier weaning in 3 months was founded among 27.9% of them. About half of the respondents, 54.1% started weaning of their infants in 4∼6 months. In overall, 82.0% of them set on weaning in less than 6 months after babies were born. Fruits was firstly given to 65.2% of the infants as introducing weaning foods and commercial supplementary foods, boiled rice, milk and milk products were many by order. 50.1% of mothers prepared supplementary foods at home or used commercial baby foods, while 33.1% prepared supplementary foods for infants at home and 4.6% gave infants adult`s meals as supplementary foods.

      • Faraday's Law에 의한 전기응집공정의 분석

        김혜숙,윤영임,조은정,최윤희,오미영,김영관 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.A

        This research was carried out to find out the possibility of using Faraday's law in analyzing the electrocoagulation system. Bench-scale reactor equipped with aluminum electrode plates was operated using synthetic wastewater which received sodium chloride for conductivity adjustment. Phosphate was added to the wastewater to induce the precipitation with Al. The amount of aluminum dissolved from the electrodes could be predicted by Faraday's law with a difference less than 5%. This difference was greater at a higher electric current, probably due to the increased solution temperature. However, effect of pH on the dissolution of the aluminum was negligible. The result of this study suggested that the operating condition of electrocoagulation system could be developed using the Faraday's law when the pollutant concentration is given.

      • KCI등재

        예비수학교사의 신념에 따른 교수학적 내용지식(PCK)과의 관련성에 관한 연구

        고상숙,김은호,문정윤,배지은,정대진 이화여자대학교 교과교육연구소 2011 교과교육학연구 Vol.15 No.4

        This study investigated the relationship between PCK (Pedagogical Content Knowledge) and pre-service mathematics teachers' mathematical beliefs, and the effects of PCK on their teaching. The data were collected through pre & post interviews, a questionnaire, and classroom observations of six pre-service mathematics teachers who were taking their field practica in their senior year. The results indicate that the pre-service mathematics teachers' differing beliefs about the nature of mathematics affected their PCK. This study showed the relationship between their beliefs about teaching and the learning of mathematics and PCK. It is recommended that more opportunities for PCK development, as well as for modifications in of their beliefs have to be offered in education programs for pre-service mathematics teachers. 본 연구의 목적은 예비수학교사들의 수학적 신념과 수업에서 발현된 교수학적 내용지식(PCK)의 특징을 알아보고, 이를 통해 수학적 신념에 따른 PCK의 관련성에 대해 분석하는 것이다. 이 연구는 교육실습 중인 예비수학교사 6명을 대상으로 실시한 PCK 설문지, 인터뷰 자료, 수업관찰 자료를 분석하는 질적 연구 방법을 토대로 하였다. 연구결과, 예비수학교사들의 다양한 수학 본질에 대한 신념은 PCK에 서로 다른 영향을 주었으며, 수학 교수-학습에 대한 신념과 PCK사이에는 밀접한 관련성이 있음을 볼 수 있었다. 따라서 신념과 교수학적 내용지식(PCK)을 함께 발달시킬 수 있는 예비교사 연수 및 지원 프로그램의 확충이 필요하다.

      • 부산 백세인 특성

        김윤진,이정규,박형숙,김동희,손용진 부산대학교 병원 암연구소 2008 부산대병원학술지 Vol.- No.23

        Purpose: The proportion of centenarians has been increasing in many parts of the world, and the issues of longevity has been the subject of the research concern in recent years. We has conducted the first study with centenarians in Busan, 2006 and this is a follow-up study for prospective research of centenarians in Busan. Methods: The demographic database of Busan Centenarian Study existing in 2006 wasutilized for our studies. Twenty-five centenarians or a proxy were contacted and eight individuals agreed to have a direct interview using a questionnaire. Data were collected from May to June 2007. Results: Of the 2Scentenarians, 2(8%)were men and 23(92 %) were women. The average age was 101.3 years and the highest one was 106 years of age. The majority of the centenarians were living with family, most of those were living with their sons. Among 8 visited centenarians, there were 2 drinkers(2S%) but no one was smoking. Among them, 7 centenarians (87.5%) had regular eating pattern and, 3 centenarians(37.5%) participated social activities. Conclusions: The centenarian in Busan is likely to be healthy and they are living with their family. The centenarians study in Busan has important meaning to understand the health of centenarians.

      • KCI등재후보

        서울지역 일부 과체중 및 적절체중 학령기 아동의 신체계측, 체지방률, 혈액지표 및 영양소 섭취 상태의 비교 분석 연구

        이정숙,이정윤,임현정,조미란,차성호,조여원 대한영양사협회 2003 대한영양사협회 학술지 Vol.9 No.4

        This study was carried out to compare the characteristics of the over weight elementary school students with those of desirable-weight children. Anthropometric parameters such as height, weight, BMI body fat percentile, triceps skin fold thickness were measured. Dietary assessment and blood analysis were performed. The average ages of over weight children and desirable-weight children were 10.9f2.5 and 10.2±2.8 years, respectively. The means body fat percentile of over weight children and desirable-weight children were 27.5±3.7% and 20.2± 3.8%. respectively. Plasma levels of TG. total cholesterol, LDL cholesterol, and HDL cholesterol of over weight children and desirable-weight children were 179.3±30.0. 104.9f26.6, 52.3f6.7 and 178.3±84.l㎎/dl and those of desirable-weight children were 86.1±43.5, 183.7f16.5, 101.0f2.1 and 67.7±20.0㎎/dl respectively. Plasma TG levels of over weight children were significantly higher than those of desirable weight chddren. On the other hand plasma HDL-cholesterol levels of over weight children were significantly lower than those of desirable-weight children Plasma levels of GOT ,and GPT were in normal range in both group. However, GPT level of over weight children was &her than that of desirable weight children. Plasma levels of albumin, globulin and BUN were all in normal range and no differences were found in both groups. Hematologic data did not show any difference between two group except WBC, KBC and Hgb levels which were significantly higher in over weight group than those of desirable-weight children. DAY nutrients intake of over weight children and desirable-weight children were very similar and they were around the Korean KDA levels for each nutrients. However, the intake of calcium of both groups were little over 50% of KDA. The consumption of d e b fiber was very low and the cholesterol intake was very high shorn that the habitual meals of Korean school children were not well balanced.

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