• 제목/요약/키워드: Cleansing

검색결과 277건 처리시간 0.028초

Candida albicans에 대한 의치 세정제의 항진균능 검사 (DETERMINATION OF ANTIFUNGAL ABILITY OF DENTURE CLEANSING AGENTS TO CANDIDA ALBICANS)

  • 전상섭;정재헌;이장희
    • 대한치과보철학회지
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    • 제31권1호
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    • pp.28-38
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    • 1993
  • For the purpose of evaluating the cleansing efficiency against Candida albicans detected frequently in patients with denture stomatitis, two denture cleansers with or without enzymes were studied under the same conditions. The results were as fellows: 1. Enzyme-contain denture cleanser was showed more Candida albicans lytic ability than non-enzyme-contained denture cleanser. 2. It was observed that Candida albicans lytic activity in further diluted manufacturerers' recommended concentration was decreased. 3. In fungicidal test, the enzyme-contained denture cleanser sterilized Candida albicans, and the non-enzyme-contained denture cleanser did not sterilize Candida albicans. 4. Sterilizing time of Candid albicans was needed for at least 60 minutes in enzyme-contained denture cleanser solution which was diluted with manufacturerers' recommended concentrations., and was needed for more times with further diluted manufacturerers' recommended concentrations. 5. In vitro growth test of Candida albicans on acrylic resin surface, the only enzyme-contained denture cleanser inhibited growth of Candida albicans, and it was observed that inhibiton ability of growth of Candida albicans on arrylic resin surface was decreased in further diluted manufacturerers' recommended concentrations.

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EDTA의 근관세척효과(根管洗滌效果)에 관(關)한 주사전자현미경적(走査電子顯微鏡的) 연구(硏究) (A SCANNING ELECTRON MICROSCOPIC STUDY ON THE EFFECT OF EDTA AS A CANAL IRRIGANT)

  • 이명종;김영해
    • Restorative Dentistry and Endodontics
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    • 제9권1호
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    • pp.107-114
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    • 1983
  • The purpose of this study was to observe the effect of cleansing action of irrigation solutions which was 3% $H_2O_2$ and 5% NaOCl, and 15% EDTA solution on the root canal wall. After treatment with the irrigant, each sample was dehydrated, and coated with 200~250${\circ}$A of gold, and observations were made with the use of scanning electron microscope. The results were as follows: 1. In the root canal walls irrigated with 3% $H_2O_2$ and 5% NaOCl solution without instrumentation after extirpation through barbed broach, the predentin of root canal wall was found scarely affected, and the wall was shown retaining network structure and fibrous organic matters. 2. When 15% EDTA was applied as irrigants for 60, 90 and 120 seconds after instrumentation, there was no signigicant difference of the cleansing effect of the elapsed times which were 90 and 120 seconds on the root canal wall, but in the applied time which was 120 seconds, the canal wall was the cleanest. Therefore it was thought that the most suitable application time of 15% EDTA as the irigants was 120 seconds.

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성인 여성들의 모발관리행동과 모발화장품 만족도 (Hair Management Behavior and Hair Care Products Satisfaction of Women)

  • 김용숙;이지영
    • 복식
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    • 제52권8호
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    • pp.99-107
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    • 2002
  • The purpose of this study was to identify the hair management behavior and satisfaction of hair care products of women. A self-administered questionnaire developed by researchers was used. The subjects were 500 women who were residing in Chonbuk province from Aug. to Sep. 2002. Frequencies, percentages, means, and standard deviations were calculated. And One-way ANOVA and t-test were done. The results were as follows : 1. Most women were satisfied with the condition, gloss, and thickness of their hair, but unsatisfied with their hair color. As they were getting older, their satisfaction were lowered about their hair condition and gloss. 2. Most women went to beauty shops once or twice a month to have their hair permanent waved or cut. and some for dyeing or dry Few women went to beauty shop for make-up and peticures. 3. Women did frequent hair management behaviors such as cleansing, style, and providing nutrition, but caring dandruff and preventing alopecia were relatively less. Older or married women did more frequent hair management behaviors such as caring dandruff, preventing alopecia, dyeing, styling, and providing nutrition. Women used cleansing products to manage their hair, and styling products and nutrients to provide their hair with nutrition. 4. Specially price and efficiency satisfaction of dandruff care products, alopecia preventing products, dyeing products were very low.

Prediction of lightweight concrete strength by categorized regression, MLR and ANN

  • Tavakkol, S.;Alapour, F.;Kazemian, A.;Hasaninejad, A.;Ghanbari, A.;Ramezanianpour, A.A.
    • Computers and Concrete
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    • 제12권2호
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    • pp.151-167
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    • 2013
  • Prediction of concrete properties is an important issue for structural engineers and different methods are developed for this purpose. Most of these methods are based on experimental data and use measured data for parameter estimation. Three typical methods of output estimation are Categorized Linear Regression (CLR), Multiple Linear Regression (MLR) and Artificial Neural Networks (ANN). In this paper a statistical cleansing method based on CLR is introduced. Afterwards, MLR and ANN approaches are also employed to predict the compressive strength of structural lightweight aggregate concrete. The valid input domain is briefly discussed. Finally the results of three prediction methods are compared to determine the most efficient method. The results indicate that despite higher accuracy of ANN, there are some limitations for the method. These limitations include high sensitivity of method to its valid input domain and selection criteria for determining the most efficient network.

소외와 회복의 시학 -김현승 시 연구- (Poetics of alienation and restoration -An Study on Kim Hyun-Seung's Poetry-)

  • 이영섭
    • 인문언어
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    • 제8집
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    • pp.95-127
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    • 2006
  • This paper is a study of "poetry therapy", a subject now in lively in literary discussion circles. Modern literary text attaches great importance to the readers' response. As such, there is growing interest in the effects of communication brought on by the interaction of participants in a discourse. Poetry, in essence, has therapeutic attributes of treating, through an aesthetic psychology, destruction resulting from the alienation from life and psychological pain of distortion. The rise of the concept of eco-poetry and the capacity for psychological cleansing and adjustment (which restores balance through communication and psychological circulation) is a reflection of new trend in research - approaching the alienation felt by modern people through restoration of sense of life. Although Kim Hyun-seung's life and the road his poetry took was not smooth, he nevertheless was firm in his sustained effort to unify socio-ethical conscience and conscience of faith through the process of spiritual inquiry. The most outstanding aspects of Kim Hyun-seung's aesthetic achievement lie in his contribution toward the therapeutic capacity of modern poetry. Kim Hyun-seung's poetryhas the following effects: 1)The therapeutic capacity of modern poetry, through catharsis at large, does not remain only at the level of cleansing and adjustment. 2)The therapeutic capacity of modern poetry has the function of emptying out the self through more fundamental spiritual awakening and insight. 3)Only then can one truly realize the transcendence of being a true self as well as the balanced inquiry of spirituality which can be described as "emptying out".

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임상가를 위한 특집1 - 근관치료에서의 레이저의 활용 (Lasers in Endodontics)

  • 허성윤;임은미;김선영;박상혁
    • 대한치과의사협회지
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    • 제49권11호
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    • pp.660-669
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    • 2011
  • Er: YAG laser irradiation utilizing the newly developed RCLase side-firing spiral tip was used for the cleansing of root canals following their bio-mechanical preparation with ProTaper Ni-Ti files. The distal and palatal roots of 20 freshly extracted molar teeth were instrumented to size F3 with ProTaper files. In the experimental group (10 teeth) the pulp chamber and the root canals were filled with EDTA 17% and the root canals were lased for 30 s using the Er: YAG laser irradiation at 600 mJ per pulse and a frequency of 12 Hz. In the control group (10 teeth) the root canals were not lased. Scanning electron microscope analysis showed clean wall surfaces of the lased root canals with open dentinal tubules, free of smear layer and debris. In the scanning electron microscope photographs of the walls of the non-lased root canals a considerable amount of debris could be detected. It appears that an efficient cleansing of the root canal system can be achieved by using the Er: YAG laser irradiation with the RCLase Side-firing Spiral Tip following bio-mechanical preparation of the root canal with Ni-Ti Taper files.

국소도포한 각질분해효소가 흰쥐피부의 두께에 미치는 효과 (Effect of Locally Applied Keratinase on Thickness of Rat Skin)

  • 황건;장정순;김대중;김성;주한승;이승진
    • Archives of Plastic Surgery
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    • 제32권3호
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    • pp.357-362
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    • 2005
  • The aim of this study is to elucidate the effect of keratinase on epidermis of rat skin. Twenty-five male Sprague-Dolly rats were used. The hair on the back were removed and $2{\times}2cm$ area was marked. The rats were divided five groups; 1) Control group(Co), 2) Cleansing gel group(Cl), 3) Cleansing gel+keratinase group, 4) Exfoliant gel group(Ex), and 5) Exfoliant gel+ keratinase group(Ex+K). The solutions were applied to the back area twice a day for five days. On fifth day, the skins were harvested, fixed and prepared for histologic sections. The thickness of keratin layer, living epidermis, dermis, and cell layer number of living epidermis were measured. In the group containing keratinase(Cl+K, Ex+K), the thickness of keratin layer and living layer were thinner than other groups. However, there were no significant differences of the cell layer number of living epidermis and thickness of the dermis among the five groups. We think the keratinase may have the effect thinning the keratin layer as well as the thickness of living epidermis, without effecting the living cell and dermal component. The keratinase containing soap may be of benefit to remove the excess keratin layers in human.

자동변속기 솔레노이드 밸브 세척기의 성능 향상에 관한 연구 (Study on Performance Improvement for Solenoid Valve Cleaner for Automatic Transmission)

  • 양형열
    • 조명전기설비학회논문지
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    • 제23권5호
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    • pp.1-8
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    • 2009
  • 자동차의 자동변속기에는 변속을 하기 위한 솔레노이드 밸브가 장착되어 있으며, 이 솔레노이드 밸브는 자동변속기의 고장 원인 중 상당부분을 차지하므로 이 밸브를 세척하기 위하여 솔레노이드 밸브 세척기를 사용한다. 그러나 현재 사용되고 있는 세척기는 슬러지를 제거하는 효과가 적고 세척 속도가 느린 단점을 가지고 있다. 본 논문에서는 솔레노이드 오프시에 잔류전류를 신속하게 제거하여 플런저의 동작속도를 증가시킴으로써 세척력을 증가시키고 세척 속도를 빠르게 하는 방법을 제안하였으며, 그 성능을 실험을 통해 증명하였다.

Glyoxide의 근관정화효과에 관한 연구 (A STUDY ON THE CLEANSING EFFECT OF GLYOXIDE ON THE DENTINAL WALLS OF ROOT CANAL)

  • 임성삼
    • Restorative Dentistry and Endodontics
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    • 제14권2호
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    • pp.103-110
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    • 1989
  • The purpose of this study was to evaluate the cleansing effect of Glyoxide on the dentinal walls of the root canal. Fourty teeth were divided into four groups and the canals in each group were individually enlarged with K-file by step-back technic and irrigated with one of four irrigants. The four used irrigants were Glyoxide (Marion lab. U.S.A.) in combination with 3.5% sodium hypochlorite, 3.5% sodium hypochlorite, 3.5% sodium hypochlorite in combination with 3% hydrogen peroxide and normal saline solution. All the irrigants were used in conjunction with instrumentation as they would be during clinical conditions. After final irrigation, the canals were dried with paper points and the teeth were split longitudinally. The cleaness of canal walls according to the size and the level of canals were evaluated under steroscope by t analysed statistically The results were as follows. 1. The use of 3.5% sodium hyphochlorite in combination with 3.0% hydrogen peroxide revealed the most clean canal surface regardless of the size of canal at apical third of root canal (p < 0.05). 2. Glyoxide in combination with 3.5% sodium hyphchlorite showed no significant difference in cleaning effect of canal surface compared with 3.5% sodium hypochlorite and normal saline solution at the apical third of narrow canal. 3. Glyoxide in combination with 3.5% sodium hypochlorite revealed no significant difference in debridement of canal walls compared with 3.5% sodium hypochlorite in combination with 3% hydrogen peroxide and saline solution at the middle third of narrow and large canals.

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데이터 오·결측 저감 정제 알고리즘 (Data Cleansing Algorithm for reducing Outlier)

  • 이종원;김호성;황철현;강인식;정회경
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2018년도 추계학술대회
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    • pp.342-344
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    • 2018
  • 본 논문에서는 기존 오 결측 데이터 분석 기법인 평균 대체법, 상관계수 수치분석, 그래프 상관성 분석 및 통계 전문가 분석 등 통계적 방법으로 대체 가능성을 조사하여 정수처리 공정에서 계측되는 각종 이상 데이터를 정제하기 위한 방법을 다양한 분석연구로 진행하였다. 또한 물 정보 데이터 오 결측 저감 정제 알고리즘의 신뢰성 및 검증에 있어 분위수 패턴과 딥러닝 기반의 LSTM 알고리즘으로 동작하는 시스템을 모델링하고, Keras, Theano, Tensorflow 등의 오픈 소스 라이브러리로 구현할 수 있는 체계를 연구하였다.

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