• 한국콘텐츠학회논문지
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• 제19권9호
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• pp.135-143
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• 2019

본 연구의 목적은 웹드라마가 사용하고 있는 온라인 동영상 플랫폼들을 대상으로 접근단계 분석과 광고 노출빈도 측정을 통해, 동영상 플랫폼의 사용성을 개선하는 것이다. 본 연구에서는 현재 웹드라마 시장의 점유율을 확인하고 접근단계와 광고회피를 바탕으로 채널간의 비교를 실시하였다. 그 결과 최신 콘텐츠에 대한 접근단계는 2~3단계이며 접근단계로 인하여 사용성이 낮아지지 않았다. 하지만 메인페이지나 검색결과에 노출되지 않아 디렉토리 검색이 필요한 경우 5~6단계의 접근단계가 필요하였다. 광고는 모든 플랫폼에서 2개 이상의 이미지광고가 표시되며, 유튜브와 네이버tv는 동영상 플레이어 내부에서 영상시작 전 프리롤(Pre-roll) 광고를 표시하는 것을 확인했다. 위와 같은 동영상 플랫폼 정보구조 상에서 디렉토리 검색을 하는 경우 높은 접근단계와 많은 광고노출로 사용자의 이탈률이 증가하고, 재방문 빈도가 낮아질 것으로 예상된다. 이를 개선하기 위해 드롭다운(Drop-Down) 메뉴를 활용하여 접근단계를 줄이는 정보구조 개선 프로토타입을 제안한다.

• 한국치위생학회지
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• 제9권3호
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• pp.380-391
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• 2009

Objectives : The purpose of this study was to compare results of dental satisfaction at different type of character and provide basic materials for making the valuable strategies of dental service. Methods : Data was obtained from 256 patients using questionnaire from September 5 to October 13, 2007. Self-administered questionnaires was utilized to assess their types of personal psychological variable and find out its influential factors upon dental consumers and their intent of revisit. The data was analyzed with t-test, one-way ANOVA and logistic regression using the SPSS 14.0 Windows. Results : There is no meaningful difference in dental satisfaction as for character types and factors. Considering the difference of dental satisfaction according to general characteristics, there was a meaningful difference between groups of gender. Also interpersonal relationship as well as level of skill is significantly high in periodical dental visit. Conclusion : The results of this study indicated that environment and facility, cost is the most important influencing factor in determining whether or not the patient will visit a dental clinic repeatedly. In the future, more precise and in-depth questionnaires should be developed to analyze dental consumers.

• 종양간호연구
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• 제4권1호
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• pp.26-37
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• 2004

The purpose of this study was to determine and test treatment-seeking behavior type and decisional factors of the cancer patients after first detecting symptoms. This study used the methodological triangulation. In the first, treatment-seeking behavior type and decisional factor were described based on qualitative data collected from in-depth interviews with 29 cancer patients. Next, they were tested using quantitative data collected from a structured questionnaire involving 165 cancer patients with statistical method. As a result, treatment-seeking behavior from detecting symptoms to visiting a doctor categorized into immediate visit and delayed visit. The decisional factors on time interval between detecting symptoms and visiting a doctor was influenced by the perceived seriousness of symptoms, the experiences of visiting a doctor previously with similar symptoms, social-group influences on visiting a doctor, barriers to visiting a doctor, and health concerns. There were significant relationship between treatment-seeking time and these factors, however, there was no statistically significant relationship between treatment-seeking time and the demographic characteristics. It is expected that results of this study can be used for nursing education data of cancer patients for early diagnosis after detecting symptoms

• KIEAE Journal
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• 제16권2호
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• pp.43-52
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• 2016

In the 21st century, Korea had radical economic development with accelerating urban sprawl, and following declination with social polarization. City declination makes socially vulnerable people unstable and increase homelessness. The projects revitalizing decayed area utilize local idle spaces to build new facility with creative supportive programs. The purpose of this study is to analyze inclusive characteristics of a supportive housing 'The Brook'. A field visit walk through observation and in-depth interview were utilized as research methods. The information of a representative supportive housing field will promote understanding the concept, and create base for further research. As results, state and knowhow of information concerning housing first policy, active government investment, space planning, management, social integration, service providing, architecture and so on offered to facilitate inclusive insights. In conclusion, the characteristics of supportive housing were realistically analyzed through a field research. This research is significant to introduce initially the effective supportive housing which has been practiced for 30 years in USA to that needs alternatives for the socially vulnerable in Korea.

• Korean Journal of Ophthalmology
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• 제32권6호
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• pp.470-477
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• 2018

Purpose: To investigate the relationship between the progression of visual field (VF) loss and changes in lamina cribrosa depth (LCD) as determined by spectral-domain optical coherence tomography (SD-OCT) enhanced depth imaging in patients with primary open angle glaucoma (POAG). Methods: Data from 60 POAG patients (mean follow-up, $3.5{\pm}0.7$ years) were included in this retrospective study. The LCD was measured in the optic disc image using SD-OCT enhanced depth imaging scanning at each visit. Change in the LCD was considered to either 'increase' or 'decrease' when the differences between baseline and the latest two consecutive follow-up visits were greater than the corresponding reproducibility coefficient value ($23.08{\mu}m$, as determined in a preliminary reproducibility study). All participants were divided into three groups: increased LCD (ILCD), decreased LCD (DLCD), and no LCD change (NLCD). The Early Manifest Glaucoma Trial criteria were used to define VF deterioration. Kaplan-Meier survival analysis and Cox's proportional hazard models were performed to explore the relationship between VF progression and LCD change. Results: Of the 60 eyes examined, 35.0% (21 eyes), 28.3% (17 eyes), and 36.7% (22 eyes) were classified as the ILCD, DLCD, and NLCD groups, respectively. Kaplan-Meier survival analysis showed a greater cumulative probability of VF progression in the ILCD group than in the NLCD (p < 0.001) or DLCD groups (p = 0.018). Increased LCD was identified as the only risk factor for VF progression in the Cox proportional hazard models (hazard ratio, 1.008; 95% confidence interval, 1.000 to 1.015; p = 0.047). Conclusions: Increased LCD was associated with a greater possibility of VF progression. The quantitative measurement of LCD changes, determined by SD-OCT, is a potential biomarker for the prediction of VF deterioration in patients with POAG.

• Water Engineering Research
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• 제3권1호
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• pp.31-44
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• 2002

The effect of diurnal cycle, intermittent visit of observation satellite, sensor installation, partial coverage of remote sensing, heterogeneity of soil properties and precipitation to the soil moisture estimation error were analyzed to present the global sampling strategy of soil moisture. Three models, the theoretical soil moisture model, WGR model proposed Waymire of at. (1984) to generate rainfall, and Turning Band Method to generate two dimensional soil porosity, active soil depth and loss coefficient field were used to construct sufficient two-dimensional soil moisture data based on different scenarios. The sampling error is dominated by sampling interval and design scheme. The effect of heterogeneity of soil properties and rainfall to sampling error is smaller than that of temporal gap and spatial gap. Selecting a small sampling interval can dramatically reduce the sampling error generated by other factors such as heterogeneity of rainfall, soil properties, topography, and climatic conditions. If the annual mean of coverage portion is about 90%, the effect of partial coverage to sampling error can be disregarded. The water retention capacity of fields is very important in the sampling error. The smaller the water retention capacity of the field (small soil porosity and thin active soil depth), the greater the sampling error. These results indicate that the sampling error is very sensitive to water retention capacity. Block random installation gets more accurate data than random installation of soil moisture gages. The Walnut Gulch soil moisture data show that the diurnal variation of soil moisture causes sampling error between 1 and 4 % in daily estimation.

• 한국컴퓨터정보학회논문지
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• 제28권9호
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• pp.121-128
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• 2023

무선 센서 네트워크에서 네트워크의 수명을 증가시키기 위해 주변 환경으로부터 에너지를 수집하거나, 무선 전력 전송으로 직접 에너지를 전달하는 방법이 사용되고 있다. 또한 에너지의 불균형을 줄이고 데이터의 수집량을 증가시키기 위해 직접 센서 노드를 방문해서 자료를 수집하는 모바일 싱크 노드를 활용한 방법이 사용되고 있다. 본 논문에서는 이러한 환경에서 각 센서 노드가 네트워크 환경과 에너지를 고려하여 Minimum Depth Tree (MDT)를 구성하고 자식 노드에 자료수집량을 할당해줌으로써 중계 노드의 부하를 줄이고 전체적으로 많은 데이터를 고르게 수집하는 기법을 제안한다. 시뮬레이션 결과, 본 기법은 기존의 다른 기법에 비해 에너지 고갈을 효과적으로 억제하고 더 많은 자료를 수집하는 것을 보여준다.

• 대한간호학회지
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• 제36권4호
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• pp.662-670
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• 2006

Purpose. This study was performed to develop and test a decision-tree model of treatment-seeking behaviors about when Korean patients visit a doctor after experiencing stroke symptoms. Methods. The study used methodological triangulation. The model was developed based on qualitative data collected from in-depth interviews with 18 stroke patients. The model was tested using quantitative data collected from interviews and a structured questionnaire involving 150 stroke patients. The predictability of the decision-tree model was quantified as the proportion of participants who followed the pathway predicted by the model. Results. Decision outcomes of the model were categorized into immediate and delayed treatment-seeking behavior. The model was influenced by lowered consciousness, social-group influences, perceived seriousness of symptoms, past history of hypertension or stroke, and barriers to hospital visits. The predictability of the model was found to be 90.7%. Conclusions. The results from this study can help healthcare personnel understand the education needs of stroke patients regarding treatment-seeking behaviors, and hence aid in the development of educational strategies for stroke patients.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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• pp.143-146
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• 2004

With the rapid growth of e-commerce, marketers are able to observe not only purchasing behavior on what and when customers purchased, but also the individual Web usage behavior that affect purchasing. The richness of this information has the potential to provide marketers with an in-depth understanding of customer. Using commonly available Web log data, this paper examines Web usage behaviors at the individual level. By decomposing the buying process into a pattern of visits and purchase conversion at each visit, we can better understand the relationship between Web usage behavior and purchase decision. This allows us to more accurately forecast a shopper's future purchase decision at the site and hence determine the value of individual customers to the siteAccording to our research, not only information seeking behavior but also visiting duration of a customer and participative behavior such as participation in event should be considered as important predicators of purchase decision of customer in a cosmetic internet shopping mall.

• 한국주거학회논문집
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• 제26권1호
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• pp.19-30
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• 2015

As the number of homeless is increasing, there have been worries for social burden and social insecurity, along with crisis in human dignity. The purpose of this research is to identify characteristics of a Supportive Housing (SH) project which is considered best practice in dealing with homeless problem. A field visit walk through observation and in-depth interview was utilized as the main research method. As results, overall management, spatial and service characteristics were delineated, and its meaning and uniqueness were discussed, as well as, comparison with Korean conditions. In conclusion, the characteristics of the Supportive Housing were more realistically revealed through a current field case to inspire to explore housing for Korea. Besides current concerns were linked and implication to Korean adaptation was suggested. This study is unique in that SH of USA is firstly introduced in such details.