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김순경,강경화 순천향대학교 기초과학연구소 2000 순천향자연과학연구 논문집 Vol.6 No.2
This study was aimed to evaluate factors associated with feeding on infants' growth. 72 infants( 39 males and 33 females ) aged 11∼19months were measure length and were weighed. Their mothers were interviewed using questionnaires including general and maternal feeding attitude and infant's food behavior. Infants were classified breast-fed(n=26), formula-fed(n=26) and mixed fed group(n=20). The formula-fed infants weaned faster than breast-fed. The overweight and obesity of the formula-fed group were larger than breast-fed. And it was suggested that careful attention of polarized nutritonal problems of early infants was needed, especially in formula-fed group.
Paint sludge내 활성을 고려한 건조방법에 관한 연구
이순홍,백우진,윤강재,이재현,김화진 안양대학교 산업기술연구소 2004 自然科學硏究 Vol.11 No.1
각종 도장산업에서 발생하는 paint sludge는 대부분 소각후 매립 또는 건조과정을 거쳐 단순 무기재로서 재활용되어지고 있다. paint sludge의 양은 매년 증가하는 추세이고 이에따라 국내외에서는 paint sludge를 보다 가치가 높은 유기재로서 재활용하는 방안이 연구되어지고 있다. 따라서 재활용공정 중 필수공정인 건조방법을 이전과는 다른 방법등을 도입하여 paint sludge내 활성기를 보존하고 함유수분을 효율적으로 제거하기 위하여 효과적인 연구방법을 찾는데 연구의 목적이 있다. 본 연구에서는 문헌연구를 통하여 건조온도를 낮추는 효과를 기대할 수 있는 물리적 방법인 감압건조법과 paint sludge에 첨가제를 첨가하여 건조효율을 높일 수 있는 화학적 첨가제를 첨가한 방법을 건조방법에 적용하여 실험하였다. 또한 화학적 첨가제 첨가 후 전처리로서 수분산시킨후 감압여과하는 공정을 추가하여 실험하였다. 감압건조법을 이용하여 활성기 잔존을 위한 최적의 조건을 온도별, 압력별 건조효율 비교실험을 통하여 80℃, 60mmHg로 결정한 후 각 첨가제별 건조효율을 비교하였다. 4가지 첨가제 중 bentonite가 24시간 건조 후 함수율 2.38%로 가장 높은 효율을 나타냈었다. 또한 전처리를 행한 경우 magnesium chloride, sodium hydrogen carbonate 및 bentonite는 paint sludge 입자내 수분을 흡습하여 여과시 시간을 길게 진행하여도 기존의 함수율보다 낮은 함수율을 얻었다. Calcium oxide경우 감압여과 30분 처리 후 감압건조를 실시한 결과 첨가량이 증가할수록 높은 효율을 나타내었으며 첨가량 5%일때를 제외하고 10%, 20%, 30%일때 모두 4시간안에 5%이하의 함수율을 얻을 수 있어 감압건조만으로 이루어진 공정에 비해 절반정도의 시간을 단축할 수 있었다. 첨가제량에 따른 경제성과 재활용시 영향을 미칠 가능성을 고려하여 첨가제량은 10%정도가 적절한 것으로 판단된다. Paint sludge내 활성을 고려한 건조방법에 관한 연구 활성기의 손실여부는 FT-IR spectrum을 사용하여 -COOH, -OH 및 -NH_(2)기가 건조후 paint sludge powder내에 존재하고 있음을 확인하였다. 활성기의 존재로 인하여 paint sludge의 물성을 유지한 고기능성 재료로의 재활용이 가능할 것으로 예상되며 실제 공정에 적용할 경우 좀 더 많은 연구가 필요할 것이라 사료된다. Most of the paint sludge that is derived in the paint industry is buried after incineration. Only a few amount of them recycled as an inert inorganic filler in the fine powder form by the process of being dried or after incineration. The purpose of this study is to find out the effective method that can dehydrate and preserve active radical in efficiency. We made the experiment on the method of decompression drying which can lower the temperature of drying as a physical method, the method of a chemical addition which can rise the efficiency of drying. In the study, bentonite was the most excellent in the dehydrating efficiency to show the final water content of 4.5% in 10 hours, and sodium hydrogen carbonate, magnesium chloride, calcium oxide, raw paint sludge followed bentonite in order to of efficiency, when we decided 60mmHg, 80℃ as the best suited condition for the survival of active radical. We measured the loss of active radical by using FT-IR spectrum and confirmed the existence of -COOH, -OH and NH_(2) radicals in paint sludge.
박순화,고경태,정진수,권용주 한국과학교육학회 2005 한국과학교육학회지 Vol.25 No.2
이 연구의 목적은 학생들의 생물학 가설검증방법의 유형을 분류 데 있다. 이를 위해 고등학생 35명과 대학생 40명을 표집 하여 수국, 제비 나비, 감자즙, 펭귄 등 4개의 가설검증 과제를 투입하였다. 각 과제에서 연구대상 학생들은 현상을 관찰하여 인과적 의문을 생성하고, 집단토의를 통해서 하나의 가설을 생성하였다. 그런 후 스스로 생성한 가설을 검증할 수 있는 방법을 고안하였다. 연구자들은 이렇게 고안된 학생들의 가설검증방법을 분석하여 몇 가지로 유형화하였다 그 결과에 의하면 먼저, 하나의 원인으로 된 가설의 검증유형은 직접 관찰법, 유사현상 비교법, 긍정 비교법, 긍정-부정 비교법, 비례 비교법 등으로 분류되었다 그리고 여러 개의 원인으로 된 가설은 크게 부분 검증법과 전체 검증법으로 구분되었고, 부분 검증법은 다시 단일 유형과 다수 유형의 하위 유형으로 구분되었으며, 전체 검증법은 유기적 유형, 기계적 유형, 혼합 유형 등의 하위 유형으로 구분되었다. The purpose of this study was to analyze the college students' and high school students' testing methods for biological hypotheses. Subjects were 35 11th grade students and 40 college students. Four hypothesis-testing tasks were developed and administered to the subjects: hydrangea, swallow butterfly, juiced potato, and penguin tasks. After being presented with the phenomena of the tasks, students were asked to generate questions and hypotheses and then to write a hypothesis-testing method on a questionnaire. Students' hypothesis-testing methods were classified into 5 types for mono-cause hypotheses; direct observation, similar phenomenon comparison, positive comparison, positive-negative comparison, and proportion comparison. In addition, students' hypothesis-testing methods were classified into 5 types for multi-cause hypotheses; mono type, poly type, organic type, mechanic type, and mixed type. This study also discussed the implications of these findings for teaching and learning in science education.
강순덕,전예화 인제대학교 1999 仁濟論叢 Vol.14 No.3
The purpose of the study was to investigate the actual conditions to develope the quality of family day care centers in the city of Kimhae. The subjects of the study were 52 full-time care givers of family day care centers registered in Kimhae. The major findings were as follows: 1. The programs of ,the centers consisted of activities with social, psychological characteristics, and the purpose was the psychological stability and love. 2. The age range of the care givers was between 31 and 35, and most of them had three years experience or more. They had a sense of mission and responsibility for education but showed the negative attitude to work in the center continuously. 3. The paricular problem related to administer the center was parents not keeping time. Care givers used the methods of sending message to parents for the mutual relationships but more frequent and open mutual interactions we necessary for the quality programs which would reflect parents' opinions.
保養觀光地の利用ㆍ開發による空間構造の形成 および變化に關する硏究
任和淳,池鎭浩 문화관광연구학회 2000 문화관광연구 Vol.2 No.3
The paper aims to clarify the development process of Dong-rae spa in Korea since 1876, which is well known since Lee dynasty and to be the only spa which had been urbanized in 1920's. the results are as follow : ① The spa had been changed its character in three stages ; i) Infiltration of Japanese use into traditional Korea spa, ii) Establishment of health and retreat resorts for Japanese, iii) transfiguration and establishment to large scale pleasure resorts. ② Spatial enlargement of the spa had progressed in accordance with three stage mentioned above. ③ In the final stage, the spatial structure was formed by four concentric belts ; commercial and public baths zone in the center, small hotel belt, large hotel belt, and villas belt. ④ The stocks accumulated before liberation had worked a little for the after Liberation development of spa.
染色技法에 따른 絹纖維의 染色堅牢度 硏究 : 工藝染을 中心으로 Dyeing of Fabric Art
吳和子,金月順 경남대학교 환경문제연구소 1995 환경연구 Vol.17 No.-
In this study, this researcher tested the colour fastness of the samples dyed with direct, resist and paste dyeing by using dyestuff of Bayer Acid of German Bayer Co. such as Red A 04, Red AO3, Blue AO9. Blue A11, Blue A12 and Green A13 on the 100% silk fabrics This researcher obtained the following results by test colour-fastness to light, laundering and perspiration of the dyed samples . 1. The colourfastness to light of all samples showed low one. In added, the case of pasted dyeing showed lower one under the same conditions. It means that the paste dyeing is unsutable for dyeing of silk fabrics that exposed to sunlight. 2. The test of washing the dyed silk fabrics showed remarkably low colourfastness. But test of dry-cleaning the dyed ones showed excellent colour-fastuess in all the dyeing method. Thus, in the laundering of silk fabrics, dry-cleaning is desirable. 3. The colourfastness to the acid and alkaline perspiration showed low ones. The colourfastness of the samples dyed with wax resist and pasted dyeing were lower than direct dyeing remarkably. So for more aesthetic clothing habits and the practical tendancy of technol ogical dyeing, it is necessary that the further study on the fine structure the dyeing method of fabrics, the use of medicines attendant upon it, the component of resist and after processing method.
강화정,문병순 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1
The literatual study on the therapy for cleaning away heat with apoplexy therapy, the result were obstained as follows. 1. In apoplexy therapy, therapy for clearing away heat is used excessive heart - fire by overacting of the five emotions, liver fire, deficiency of kidney - fluid, wind - heat. 2. The fire of aetiology of apoplexy is used therapy for clearing away heat, in aspect of viscera and bowels, divided into heat-fire, liver-fire, deficiency fire of kidney yin, wetness-phlegm of spleen heat. The treatment is clear away heart-fire, clear away liver-fire, clear away spleen-heat and sthenic water. 3. Symptom of excessiveness symptom-complex is used therapy for clearing away heat that are fever, flushed face, halitosis, heart burn, easy anger, apoplestic stroke, unconsciousness, trismus, paratysis, constipation, red tongue with yellow coat, taut-smooth pulse or full rapid pulse and symptom of insufficiency symptom - complex that are dizziness, tinitus, blurring of vision, deficiency sleeping, dreaminess, lassitude of the loins and legs, hemiplegia, red tongue with white coat or thin - yellow coat, taut- therapy-rapid pulse. 4. Therapy for norish vital essence - clearing away heat is availed in excessive fire caused by deficiency of yin of the liver and kidney, therapy for break through phlegm - clearing away heat in stagnant, heat, therapy for waking up a patient from unconsciousness - clearing away heat in stagnant heat, therapy for waking up a patient from unconsciousness - clearing away heat yang type sthenia - syndrom of coma of apoplexy involving viscera and bowels. 5. Commonly used recipes of therapy for clearing away heat are Yang gyoksan(凉膈散), Bang pungtongseongsan(防風通聖散), Sotongseongsan(小桶聖散), Jibodan(至寶丹), Supungsungisan(授風腥氣散), Woowhangchengshimwhan(牛黃淸心丸), Chengungsekgotang(川芎石膏湯), Samwhatang(三化湯) etc in excessiveness symptom - complex, and are Yukmihiwhangweon(六味地黃元), Jiwhangtang(地黃湯), Palmiji whangtang(八味地黃湯) etc in insufficiency sumptom - complex.
백순화 천안대학교 2001 천안외국어대학논문집 Vol.- No.1
Contour extraction is a technique for extracting the lines that characterize an image. In computer vision, contour extraction is an important factor that deter-mines the performance of image processing and can reduce the amount of image data. Therefore it has been used widely in connection with the various image processing algorithms. In this paper, an algorithm with contrast stretching and contrast partitions is proposed. The result of the proposed algorithm is then compared with the contour extraction method using an edge extraction operator, which has been commonly used in the past. The similarity measure when testing the Blobs images of the proposed method is higher by about 22% than the result of the conventional method. The PSNR of the proposed method is higher about 8.6[dB] than the conventional method. The results of this experi-ment demonstrate that an algorithm for detailed and robust contour extraction has been developed.