• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.613-616
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• 2007

Characteristics of dark image retention and address discharge time lag were investigated simultaneously. It was found that reset waveforms with low black luminance did not guarantee lower image retention. Improved address discharge time lag due to modified reset waveforms similarly did not show improved image retention. The address discharge time lag and the image retention are in a trade-off relation.

• 임상간호연구
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• 제28권1호
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• pp.54-65
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• 2022

Purpose: This study was conducted to explore the relationships among new nurses' meaning of work, organizational commitment, professional self-image, and retention intention through path analysis. Methods: The participants were 872 nurses with less than a year of clinical experience working at general or tertiary hospitals over 500 beds in Korea. The data were collected using structured questionnaires from May 15, 2021 to June 28, 2021, and analysis was conducted using SPSS/WIN 22.0 and AMOS 21.0 programs. Results: Retention intention was explained by meaning of work, organizational commitment, and professional self-image, its explanatory power was 46.5%. The mediating effect of professional self-image was found on the relationship between meaning of work and retention intention. Conclusion: To encourage the retention intention among new nurses, an environment where new nurses can set a high value on the meaning of work and sense of accomplishment should be created, and a strategy to improve organizational commitment and professional self-image should be established.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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• pp.259-262
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• 2005

Image retention is a kind of fatal shortcoming of the AC PDPs for realizing high-quality picture. In this work, the measurement method of image retention was proposed using temporal measurement of luminance, CIEXYZ tristimulus values, IR emission of reset pulse, and temperaturel. On the base of temporal measurement of luminance, CIEXYZ tristimulus value, and IR emission of reset pulse, the retention time of Ne+5%Xe gas-mixture discharge was about 2 hours after white window image. However, it was about 20 minute on the base of temporal measurement of temperature.

• 치과방사선
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• 제3권1호
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• pp.47-49
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• 1973

The author have observed mucoid retention cyst in the right maxillary sinus of the patient, 41 years old woman, complained discharging of purulent exudate on the right maxillary molar teeth area, and obtained the following conclusions; 1. The mucoid retention cyst in maxillary sinus casts a faint dome shaped shadow into the radiolucent image of maxillary sinus. 2. The mucoid retention cyst in maxillary sinus may be occured without a history of trauma. 3. Intraoral standard films are also valuable for the interpretation of the lesions in maxillary sinus but only extraoral roentgenograms.

• 여성건강간호학회지
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• 제9권3호
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• pp.287-298
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• 2003

Purpose: To explain the concept of postpartum weight retention and to analyze factor effect on it. Method: A total of 20 studies related postpartum weight retention were selected in the year of 1988-2001 and analysis was done. Result: A demographic factor like parity, age, social and economic level and life style such as exercise, diet, breast feeding are influential factor on postpartum retention weight. But parts of them don't agree the same results. Meanwhile, in some studies, psychological factor like women's self esteem related to postpartum retention weight, body image change, depressing is found to be very related. As a result, postpartum overweight gain could be a bad factor of physical and mental health. In Korea, we have few studies related to them. Conclusion: It is required to do many-sided and deep studies about aspects of postpartum retention weight and the factor that effect on it. Postpartum retention weight should be approached by controling weight from the period of pregnancy. And it would rather be researched through individual approach considered women's various demographic, social-cultural and physical level than be required standardized level of weight gain.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권7호
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• pp.1671-1689
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• 2013

The key issue of block-based multi-focus image fusion is to determine the size of the sub-block because different sizes of the sub-block will lead to different fusion effects. To solve this problem, this paper presents a novel genetic algorithm (GA) based multi-focus image fusion method, in which the block size can be automatically found. In our method, the Sum-modified-Laplacian (SML) is selected as an evaluation criterion to measure the clarity of the image sub-block, and the edge information retention is employed to calculate the fitness of each individual. Then, through the selection, crossover and mutation procedures of the GA, we can obtain the optimal solution for the sub-block, which is finally used to fuse the images. Experimental results show that the proposed method outperforms the traditional methods, including the average, gradient pyramid, discrete wavelet transform (DWT), shift invariant DWT (SIDWT) and two existing GA-based methods in terms of both the visual subjective evaluation and the objective evaluation.

• 원예과학기술지
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• 제28권4호
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• pp.656-663
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• 2010

노란색 유향성 호접란을 육성하기 위해 황화계 육종모본들을 이용하여 5종류의 교배조합이 작성되었으나 $Phal.$ Brother lawrence를 종자친으로 $Phal.$ Brother saragold를 화분친으로 한 교잡에서만 정상적인 교배와 꼬투리 형성 및 종자발아가 이루어졌다. 잡종후대로 약 500개체가 실생 조직배양을 통해 육성되어 온실에 심어졌으며 개화기에 화색과 화형 위주로 60여 우수개체가 1차 선발 되었고 다시 생육속도, 병충해저항성 등을 검정한 2차 선발에서 15계통이 육성되었다. 이들을 대상으로 향기가 비교적 강하고 꽃 수명이 길어 시장에서 기호도가 높을 것으로 예상되는 6계통을 최종 선발하였다. 최종 선발된 이들 유향종들과 이들 교잡종들의 양친을 대상으로 전자코를 이용한 향기패턴분석이 이루어졌다. 전자코로 꽃 향기를 분석한 후 GC chromatogram peak와 이 피크를 이용한 Polar derivative diagram을 작성 비교한 결과 양친에서는 retention time 7s와 9s 사이, retention time 20s와 25s 사이에서 강한 peak가 나타났다. 양친과 비교하여 잡종후대의 선발계통에서는 retention time 7s와 9s 사이 즉 8s 근처에서 하나의 강한 피크가 공통적으로 나타났으며 양친에서 나타났던 retention time 20s와 25s 사이에서 강한 2개의 피크는 교잡후대 중 4개의 계통에서 이 피크가 강하게 발현되었으나 2개의 계통에서는 오히려 거의 나타나지 않았다. 그리고 $VaporPrint^{TM}$ 이미지 분석소프트웨어를 이용하여 향기패턴을 시각적으로 이미지화 한 결과 더욱 명확하게 향기패턴을 비교 분석할 수 있었는데 마찬가지로 교잡양친과 교잡후대계통 모두에서 retention time 8s 근처에서 강한 peak가 공통적으로 나타났으며 이 피크의 성분은 노란색 유향종에서 주로 강하게 발현되는 향기성분인 것으로 판단되었다. 이 피크는 향후 노란색 유향성 개체의 교잡선발 육종에 유용한 마커로서 활용할 수 있을 것으로 판단되었다.

• 대한한의진단학회지
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• 제12권2호
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• pp.49-60
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• 2008

Objectives: The aim of this study was to investigate correlation of the phlegm-retained fluid, namely Damum(痰飮) and dark circles under eyes. Methods: 2 males and 11 females aged 26-60 years were participated in this study. They were asked the intensity of 29 symptoms related with Damum(痰飮) including dark circle with the questionnaire published by the Journal of the Korea Institute of Oriental Medical Diagnostics. Three skin researchers including OMD graded the dark circles by inspection. We took the pictures around eyes by Facial Stage (Moritex, Japan) and analyzed the skin color by Image-Pro Plus (Media Cybernetics, USA). Results: There was statistically significant correlation between Damum(痰飮) and dark circles measured by self, inspectors and image analysis. Conclusions: In the Oriental Medicine, It is reported that the shadows under eyes are the sign of the retention of fluid, Damum(痰飮). In our study, that shadows, namely dark circles, has correlation with the symptoms of Damum(痰飮). Especially, the correlation between inspected grade and image analysis was very high. According to the above results, it is proved that dark circles under eyes are important diagnostic sign of Damum(痰飮).

• 펄프종이기술
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• 제42권3호
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• pp.1-6
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• 2010

A new testing method named pitch deposit tester (PDT) was developed by KRICT in order to evaluate the deposit potential of micro-stickies. The new method involves depositing the potential pitch particles on the air bubble covered plastic film set in the pitch deposit tester (PDT) and analysing the deposited area by an image analyzer. In this study, the effect of fixing agents on potential pitch deposition was elucidated. The effects of some fixing agents (polyamine and polyethyleneimine) on pitch control were investigated by the PDT test of 100% recycled newsprint stock. The study suggested that proper use of the PEI can lead to better pitch control than that of polyamine. The efficiency of novel screening method using the PDT and retention and drainage analyser (RDA) for fixing agents in terms of retention and deposit contamination could be confirmed by above mentioned results.

• 한국토양비료학회지
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• 제43권4호
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• pp.415-423
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• 2010

포어 네트웍 모델들 (Pore network model)은 토양 공극의 구조를 조사할 때 유용한 도구들이다. 이런 모델들은 삼차원 이미지들에서 공극의 구조와 관련된 양적 정보를 제공한다. 이 연구는 포어 네트웍 모델을 이용하여 공극의 구조와 수리학적 특성들을 양적으로 측정하였다. 연구목표는 큰 크기의 이미지에서 공극의 구조에 관한 양적 정보를얻기 위해 포어 네트웍 모델을 적용하고, 토양수분특성과 수리 전도도를 삼차원 이미지로부터 계산하고 이 값들은 실험을 통해 얻어진 실험값들과 결합하여 토양의 수리적 특성을 분석하는 것이었다. 토양 시료들은 발티모아 도시 중심에 있는발티모어 과학센터에 위치한 실험부지에서 채취되었다. 불교란 원주형 시료들이 채취되었고, 22 ${\mu}m$ 의 해상도로 x선 단층 촬영되었다. 포어 네트웍은 중심축 변형에 의해 공극에서 축출되었고 이를 바탕으로 공극 구조가 계산되었다. 토양수분특성과 불포화 수리 전도도 값들은 토양 이미지에서 계산 되었다. 토양 밀도, 토양수분특성과 불포화 수리 전도도들은 3 토양 시료들로부터 실험을 통해 구하였다. 삼차원 이미지 분석은 토양 공극의 특성들을, 예를 들어 공극 부피, 길이, 굴곡도, 가장 정확히 분석하였다. 이런 정확한 분석은 토양 내 수문학적 정보를 정확히 산출할 수 있게 하였다. 계산된 값과 실험을 통한 실험치의 결합은 공극에 대한 더 광범한 범위를 분석할 수 있게 하였다. 이 연구를 통해 이미지에서 계산되고 측정된 수문학적 자료들은 토양 내대기공과 소기공을 모두 다 설명해 줄 수 있는 방법이라는 것이 밝혀졌다.