• 한국콘텐츠학회논문지
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• 제11권3호
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• pp.137-146
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• 2011

스마트폰과 태블릿 PC 같은 모바일 기기의 보급과 콘텐츠 사용 증가로 모바일 환경에서의 컴퓨터 그래픽스 연구가 활발하게 진행되고 있다. 그러나 아직까지 수묵화 및 담채 렌더링 기법과 같은 비실사적 기법을 모바일 기기 상에서 효과적으로 구현하기 위한 연구는 부족한 편이다. 모바일 기기는 데스크 탑 환경에 비해 하드웨어적 한계를 가지고 있기 때문에 비실사적 렌더링 기법이 적용된 콘텐츠를 렌더링 하기 위해서는 단말기의 제약성을 고려한 특화된 렌더링 파이프 라인이 필요하다. 본 논문에서는 비실사적 기법중에서도 수묵화 기법과 담채화 기법을 모바일 환경에서 구현하기 위한 3차원 그래픽스 렌더링 파이프라인과 쉐이딩 파일 전처리 기법을 제안한다. 제안하는 기법을 이용하면 비사실적 렌더링이 적용된 다양한 3D 모바일 콘텐츠를 생성할 수 있고 사용자는 모바일 디스플레이 환경에서 실시간으로 수묵 담채 렌더링 된 콘텐츠를 볼 수 있을 것으로 기대한다.

• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2000년도 춘계학술발표논문집
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• pp.55-55
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• 2000

환망초지기는 장망초지기와 달리 섬유배향성이 심할 뿐만 아니라, 초지속도를 높일 경우 실린더 회전에 따라 생긴 원심력으로 인하여 지필 파괴(wash-off)가 발생하기 때문에 속도에 제한을 받게 된다. 본 연구는 이런 점을 개선하기 위하여 forming zone과 탈수시간이 중요한 인자임을 인식하고 vat 인입부에 apron을 설치하고 mould head의 변화를 통하여 종이의 품질향상과 생산성 향상을 도모하고자 하였다. 그 결과 wash-off 의 감소로 인하여 퍼짐새(formation)의 향상은 물론 생산속도을 증가시킬 수 있어 생산성 향상을 도모할 수 있었다. 섬유 배향성 개선으로 인한 CD의 치수안정성 도모, 종이의 양면성 감소로 인한 컬 발생을 방지 할 수 있으며, 내부수위의 적절한 변경은 종이의 퍼짐새는 물론 종이구조 개선의 중요한 인자로 확인되었다.

• 한국농공학회지
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• 제12권4호
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• pp.2078-2083
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• 1970

The purpose of this study is to give the data neccesary for improving the planning of drainage structures, specially inverted siphons, in irrigation channels. With the samples of 15 drainage inlets, one drainage flume, 16 drainage inverted siphons and 6 drainage culverts in the 3 lines of irrigation channel under Chong-Won Irrigation Association, author abtained the following results. 1. It is presumed that design drainage discharge should be determined with some additional reserves, on the basis of the maximum rainfall intensity in local area and the size of drainage area on the topographical map, avoiding the way of eye measure. 2. Location of drainage inlet should be kept away from the place where topography can make lots of wash load, but when unavoidably allowing the inflow into irrigation channel, wash load outlet with even the purpose of drainage, or drainage flume in stead of drainage inlet should be taken account of. 3. It is presumed that drainage flume may be the structure which can perform its function from a structural point of view as far as topography permits. 4. Drainage inverted siphon should be avoided at any place as much as possible; a) In case that location of the siphon would be permitted only at paddy field, drainage area hauing the amount of discharge which requires more than 90cm in diameter could only be allowed. b) In this case, crest elevation of the tank of both inlet and outlet, at least, should not be lower than the surface level of paddy field. c) As far as topography and stratum permit, ratio of depth of outlet tank to head drop should be decreased as much as possible so that discharging efficiency of wash load could increase. d) In case of avoiding the setting of the siphon, irrigation aqueduct, irrigation inverted siphon, or drainage flume should be recommended in accordance with topography. 5. Discharging capability of wash load by drainage culvert appeared to depend hardly upon the diameter of the culvert, but greatly upon the location, specially near village, for there stones and dirts dumped may considerably be piled up. So, a counter plan for that is required.

• 분석과학
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• 제8권4호
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• pp.799-806
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• 1995

In industrial field, a large volume of regenerants (acid and caustic soda) and their washing effluents are regularly disposed off from the water demineralization plant during regeneration of the ion-exchanger units. Of these waste effluents, a part of the wash water discharged from the single bed Anion and Mixed Bed units can be utilized at a certain stage of their washing cycles when its conductivity is fallen down and becomes considerably less than that of the input raw water. The main aim of this specific waste effluent utilization is to dilute the TDS concentration of the input raw water (fed into the single bed ion-exchanger units) by blending. The achievement is the increase of the longevity of the production cycles of the I.E. units along with the improvement of the production quality and decrease of the regeneration frequencies. As a result, regenerant consumption would be saved because of the reduction of ionic load in feed water which will ultimately reduce the water purification cost. At the same time, the environment pollution will also be protected to a considerable extent. This operational measure is quite effective and useful specially where high TDS water is demineralized only by single bed ion-exchangers. In such case, the water treatment plant is very often found to suffer from both production quality and quantity in addition to carrying out of random and restless regenerations. Proper reuses of the aforesaid wash water effluents of the Anion and MB units excellently minimizes the difficulties experienced in practice. This paper contains the utilities and techniques of reuses of the different kinds of waste effluents of the industrial water treatment plant in addition to the specific reuses of the post-regeneration wash waters of the Anion and MB ion-exchanger units.

• 대한치과보철학회지
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• 제43권5호
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• pp.622-632
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• 2005

Statement of problem: Silicone Index Tooth Tray impression system which does not use gingicord has a shortcoming. It takes time to remove internal wall of Silicone Index Tooth Tray for space of wash impression material. Purpose: This study was to evaluate whether providing certain space to impression body can prevent from doing complicated laboratory work. Material and methods: After mounting metal dies with shoulder and chamfer margins arbiturarily, SITT was produced using $Blu-mousse^(R)$. In one experimental group, wash impression was taken using $Fit-tester^(R)$ without removing interior surface of SITT and in the other group, wash impression was taken using $Fit-tester^(R)$ providing 0.5mm space in the SITT and then compared the differences in two groups. Results: 1. There was no significant difference between a group which did not allow space and a group which granted equal 0.5mm space. 2. There was no significant difference between gingival diameter, occlusal diameter of metal die that has shoulder margin and gingival diameter, occlusal diameter of metal die that has chamfer margin. 3. There was no significant difference between a group which did not take pick-up impression and a group which took pick-up impression through relining method using SITT 4. There was no significant difference between a group that poured immediately after taking primary impression and a group that poured after removing poured stone die. Conclusions: When taking an impression of an abutment using SITT impression system, it is considered to obtain clinically identical results between a group that did not grant a 0.5mm space within SITT for wash impression and a group which invest a space. Furthermore, it is considered possible to produce an individual die through secondary pouring.

• Asian Journal of Atmospheric Environment
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• 제7권1호
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• pp.1-7
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• 2013

To establish the method for investigating the behavior of aerosol particles deposited on the leaf surface against fog water under natural conditions, scanning electron microscopy with energy-dispersive X-ray (SEM-EDX) analysis and wash water analysis by ion chromatography after the washing treatment were performed using leaves of white birch collected from low part of the tree crown and the top of the tree in Sapporo City, Hokkaido, northern Japan. Each of collected leaves was divided into two parts according to the treatment performed: leaf surface (adaxial side) was 1) untreated, and 2) washed with deionized water with a pipette. In untreated samples, many particles of various shapes, including soil particles and organic debris, were deposited on the surface. Particles containing S were found on the surface of samples collected from only low part of the tree crown. After the washing treatment, SEM-EDX analysis revealed that soil particles and particles containing S had been washed off with water, although some particles such as soil particles and organic debris still remained on the leaf surface. The major anion such as $SO{_4}^{2-}$ was detected in wash water of all samples, although the peak of S in X-ray spectra was not detected from samples collected at top of the tree. The combination of SEM-EDX analysis with wash water analysis indicated that $SO{_4}^{2-}$ was deposited on the leaf surface in dissolved state and/or in state of submicron particles. These results suggested that fog water could remove soil particles and particles containing S and $SO{_4}^{2-}$ from the leaf surfaces, but not all particles. There was no difference in sampling position in the tree crown. Our study suggested that combination with SEM-EDX analysis and wash water analysis would be effective for investigation of the behavior of particles on the leaf surface against fog water.

• 대한화학회지
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• 제50권1호
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• pp.65-78
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• 2006

연구에서는 언 빨래가 마르는 현상을 승화라고 생각하는지, 그리고 이를 상평형 그림으로 표현할 수 있는지에 대한 중등학교 화학 교사들의 인식을 알아보았다. 53명의 교사들을 선정하여 이 연구에서 개발한 설문 및 면담을 실시하였다. 또한 사범대학 물리화학 전공 교수 2인과 분석화학 전공 교수 1인에게도 면담을 실시하여 교사 교육을 담당하는 교수의 승화에 대한 생각을 알아보았다. 연구 결과, 설문 응답한 53명의 교사 중 41명이 승화 현상이라고 답하였다. 승화라고 생각하는 교사들은 대부분 고체에서 기체로 상태변화가 일어나기 때문이라고 응답하였으며, 승화가 아니라고 생각한 교사들은 상평형 그림에서 외부압이 1기압일 때 승화가 일어날 수 없는 조건이라고 응답하였다. 17명의 교사는 언 빨래가 마르는 현상을 상평형 그림에 표현할 수 있다고 생각하였으며, 34명이 나타낼 수 없다고 응답하였다. 그러나 대부분 상평형 그림에 언 빨래가 마르는 현상을 과학적으로 설명하는 것에 대해 혼란스러워하였으며, 학생들을 가르치면서도 어려움을 겪는다고 응답하였다.

• 융합정보논문지
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• 제11권5호
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• pp.206-214
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• 2021

본 연구는 인삼저온숙성비누의 세안효과를 연구하기 위하여 진행하였다. 피부상태에 영향을 줄 수 있는 외부적 환경인자를 배제하기 위하여 동일한 환경에서 동일한 물과 타월을 사용하였으며, 세안 전과 세안 직후 10분의 피부변화를 조사하였다. 대조군으로는 세안제를 사용하지 않고 물세안만 한 경우와 시중에서 일반적으로 사용되고 있는 폼클렌저 타입의 세안제를 사용한 경우를 설정하였다. 물세안, F/C세안, 인삼cp비누 세안의 세 가지 케이스를 비교 분석하였으며 물세안의 경우 모공과 색소침착을 유의성있게 감소시켰으나 F/C세안과 인삼cp비누에 비하여는 유의성이 크지는 않았다. F/C세안의 경우 모공과 색소침착을 유의성이 크게 감소시켰으나 세안 후 급격한 수분감소가 나타났다. 인삼cp비누를 이용한 세안의 경우 모공과 색소침착을 유의성 크게 감소시키면서도 수분의 손실은 크게 나타나지 않았다. 그러므로 인삼cp비누는 피부관리를 함에 있어서 가장 적합한 세안제의 형태라고 사료된다.

• 한방안이비인후피부과학회지
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• 제21권3호
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• pp.124-131
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• 2008

Objectives : The aim of this study was conducted to test dry infant skin by external application with herbs in cosmetics. Methods : A total of 25 infants who visited Daegu Hanny Oriental Medical Center from March 5th, 2008 to May 18th, 2008 were included in this study. In this study, they were treated with the cosmetic products(body wash, rotion, cream) containing herbs. For 4 weaks skin moisture content was measured by corneometer ClVI825. And satisfaction after using body wash, rotion, cream was checked. Results : There were no significant differences on sex and age. Change of skin moisture content between before treatment and after treatment (2, 4 weeks) showed significant changes(p<0.05). Satisfaction after using body wash, rotion, cream was near good. Conclusions : Considering the above results, we have concluded that cosmetics containing herbs have the remarkable effect on infant skin mosturizing.

• 한국컴퓨터그래픽스학회논문지
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• 제17권4호
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• pp.1-10
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• 2011

수묵화 드로잉 기술는 일반적으로 붓, 먹 그리고 종이에 대한 모델링과 사용자의 2차원 붓의 움직임, 먹 번짐과 종이 재질에 대한 시뮬레이션으로 구성된다. 본 논문에서는 먹의 양과 종이의 흡수력에 대한 계산을 효율적으로 줄이고 자연스러운 수묵화의 표현이 가능하도록 탱크(tank)모델을 단순화 시키고 수묵화의 특징을 농담효과, 번짐효과, 선, 종이의 4가지 분류로 개념화 시켜서 반영하였다. 또한, 위모트의 모션센서와 IR센서를 이용하여 사용자의 움직임에 대한 데이터 값을 붓의 움직임으로 전달하도록 하였다.