• Journal of Korean Academy of Nursing
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• v.39 no.6
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• pp.781-787
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• 2009

Purpose: The purpose of this study was to evaluate a computerized touch-screen version of the asthma-specific quality-of-life (cA-QOL) questionnaire against the conventional paper-and-pencil version (pA-QOL) for equivalence, time for completion, user preference, and ease of use. Methods: A total of 261 patients were recruited. A randomized cross-over design was used. Patients in group A completed the cA-QOL first while waiting to see a physician, and completed the pAQOL version after seeing the physician. Patients allocated in group B completed these questionnaires in the reverse order. The patients were asked questions about user preference and ease of use of the cA-QOL. The time taken to complete both versions of the questionnaire was measured. Results: Weighted kappa coefficients of all items showed almost perfect agreement. The time required to complete the pA-QOL is faster than the time for cA-QOL. The patients who preferred the cA-QOL were 37.5%, while those who preferred the pA-QOL were 29.9%. Most patients reported that the cA-QOL was "easy" or "very easy" to complete. Conclusion: The cA-QOL is the computerized equivalent of the pA-QOL. The findings herein demonstrate that the cA-QOL can be helpful to nurses in busy practices for assessing, collecting, and evaluating their patients' health related quality of life.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.728-734
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• 2006

유비쿼터스 컴퓨팅 환경에서 상황정보 관리자는 특정인 주변의 상황정보의 변화를 관찰하여 그 사람의 현재 상태를 추론하는 역할을 한다. 지금까지의 상황정보 관리자는 사용자의 상태를 추론하는 과정에서, 관련된 상황정보 값들의 변화를 곧바로 사용자 상태의 변화로 간주하기 때문에, 사용자의 의도와는 상관없이 빈번하게 사용자 상태가 변화되는 결과가 초래되었다. 다시 말하여, 실제 사용자가 현재의 추론된 상태를 계속 유지하고 싶은 의도를 지닌 경우에도, 주변의 특정 상황정보의 값이 규칙에서 규정한 것과는 다르게 조금이라도 변하게 되면, 현재까지 유지되던 사용자의 상태 상황정보가 새로이 추론된 사용자상태 상황정보로 대체되게 되는 것이다. 따라서 해당 사용자는 전 상태를 기반으로 받고 있던 서비스를 더 이상 제공받지 못하게 되는 문제가 생기게 된다. 본 논문에서는 실제로 지속될 필요가 있는 것과 지속될 필요가 없는 상황정보를 구분하여 사용자의 상태 상황정보를 관리하고 범용적으로 적용될 수 있는 메커니즘을 제안한다. 본 메커니즘을 적용하게 되면, 사용자의 상태 상황정보의 존립에 영향을 미치는 주변 상황정보의 값이 달라지게 되어도, 활성화되어 있던 당시의 사용자의 상태정보는 '보류'된 상태로 남아있다가 활성화시키는 이벤트가 발생하였을 때에 '재개'되어 보류되기 전까지 서비스의 상태 그대로, 사용자의 생활패턴과 의도에 부합되는 서비스를 지속적으로 제공할 수 있게 된다.

• Journal of the Korean Society of Hazard Mitigation
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• v.10 no.6
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• pp.9-16
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• 2010

For improving social safety, It is important to build Web DB of criminal prevention and open to the public. It could be help to mitigate social damage of crimes and accidents. In this study, the main goal is to analyze and apply the applicable contents from user demands studies and case studies for a domestic life safety Web DB. For this study 31 cases of international life safety Web DB were collected and analyzed. Customer participation style of Web service was reviewed. And demand survey for crime weakness group like students, and young women was examined. As a results people needed to know the un-safety area in their usual life and their ways; school to home, work to home. While creating the Web DB for domestic life safety, user content according to different economic status and publicity for Web DB proved to be important factors.

• Computational Structural Engineering : An International Journal
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• v.1 no.1
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• pp.59-69
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• 2001

This study is intended to propose a systematic approach for reliability-based assessment of life cycle cost (LCC) effectiveness and economic efficiency for cost-effective seismic upgrading of existing bridges. The LCC function is expressed as the sum of the upgrading cost and all the discounted life cycle damage costs, which is formulated as a function of the Park-Ang damage index and structural damage probability. The damage costs are expressed in terms of direct damage costs such as repair/replacement costs, human losses and property damage costs, and indirect damage costs such as road user costs and indirect regional economic losses. For dealing with a variety of uncertainties associated with earthquake loads and capacities, a simulation-based reliability approach is used. The SMART-DRAIN-2DX, which is a modified version of the well-known DRAIN-2DX, is extended by incor-porating LCC analysis based on the LCC function developed in the study. Economic efficiencies for optimal seismic upgradings of the continuous PC segmental bridges are assessed using the proposed LCC functions and benefit-cost ratio.

• Genomics & Informatics
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• v.9 no.1
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• pp.39-43
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• 2011

MicroRNAs (miRNAs) are recently discovered small RNA molecules usually resulting in translational repression and gene silencing. Despite the fact that specific cloning of small RNA's is a method in practice, computational identification of miRNA's has been a major focus recent days, since is a rapid process following AB initio and sequence alignment methods. Here we developed new software called MiRPI that aims to identify the highly conserved miRNAs without any mismatches from given fasta formatted gene sequences by using non-repeated miRNA dataset of the user's interest. The new window embedded with the software is used to identify the targets for inputted mature miRNAs in the mRNA sequences. Also MiRPI is designed to measure the precursor miRNA statistics, majorly focusing the Adjusted Minimum Folding free Energy (AMFE) and Minimum Folding free Energy Index (MFEI), the most important parameters in miRNA confirmation. MiRPI is developed by PERL (Practical Extraction and Report Language) and Tk (Tool kit widgets) scripting languages. It is user friendly, portable offline software that works in all windows OS, sized to 3 MB.

• Journal of Families and Better Life
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• v.23 no.3 s.75
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• pp.17-24
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• 2005

This research examined the residents' behavior in using space, focusing on the kitchen area where there was the most change, in order to understand the transition of living culture through the ages. The following findings were obtained: 1) Today's apartment residents prefer 'Island' style which is located a separate counter and work space. Thus the kitchen m is now being recognized as a place spacious, and where the whole family can participate. 2) The usage of the kitchen is not only limited to cooking or keeping household goods but also broadened to washing, private life, happy home circle, inviting guests etc. Especially, family union or inviting guests in the kitchen is more frequent as the houses become larger, private refreshment or reading in the kitchen is proportional to income and to people living in homes where the kitchen and dining room is divided independent 3) Looking at the dietary life styles of today's apartment residents, there are more well-being type and tradition type than prosessed type. This trend is portional to the resident's standard of education and the size of the apartment, thus making a significant influence.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.5 no.7
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• pp.1346-1367
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• 2011

As the size of camera modules is decreasing and as the computing performance of portable devices is improving, taking photos has become a part of daily life. However, existing photo management programs and products that manage such photos still require extensive user effort to facilitate the sharing and browsing of images. It is especially difficult for novice users to manage and share photos. In this paper, we develop a round-robin concept-driven user preference feedback mechanism for achieving direct photo sharing, instant display, and easy management using optimized user controls and user preference-driven classification. Compared with commercial photo management systems, our proposed solution provides new features: optimized user controls, direct sharing and instant display, and user preference feedback driven classification. These new features boost the round-robin concept-driven user preference feedback. This paper proposes a photo finder that automatically searches for photos in storage spaces or cameras. The proposed photo finder relies on user preference feedback to share photos by leveraging user preferences, and the round-robin connection transmits photos to the family's digital photo frame or web album by arbiter. The proposed method saves time and spares users the effort required for photo management. Moreover, this method does not merely direct photo sharing and simple photo management, but it also increases the satisfaction level of users viewing the photos.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.3
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• pp.123-129
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• 2009

Ubiquitous home is emerging as the future digital home environments that provide various ubiquitous home services like u-Life, u-Health, etc. It is composed of some home appliances and sensors which are connected through wired/wireless network. Ubiquitous home services become aware of user's context with the information gathered from sensors and make home appliances adapt to the current home situation for maximizing user convenience. In these context-aware home environments, it is the one of significant research topics to predict user behaviors in order to proactively control the home environment. In this paper, we propose Multi-Level prediction algorithm for context-aware services in ubiquitous home environment. The algorithm has two phases, prediction and execution. In the first prediction phase, the next location of user is predicted using tree algorithm with information on users, time, location, devices. In the second execution phase, our table matching method decides home appliances to run according to the prediction, device's location, and user requirement. Since usually home appliances operate together rather than separately, our approach introduces the concept of mode service, so that it is possible to control multiple devices as well as a single one. We also devised some scenarios for the conceptual verification and validated our algorithm through simulations.

• Journal of the Korea Safety Management & Science
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• v.15 no.1
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• pp.109-120
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• 2013

As information-oriented industry has been developed and electronic devices has come to be smaller, lighter, multifunctional, and high speed, the components used to the devices need to be much high density and should have find pattern due to high integration. Also, diverse reliability problems happen as user environment is getting harsher. For this reasons, establishing and securing products and components reliability comes to key factor in company's competitiveness. It makes accelerated test important to check product reliability in fast way. Out of fine pattern failure modes, failure of Electrochemical Migration(ECM) is kind of degradation of insulation resistance by electro-chemical reaction, which it comes to be accelerated by biased voltage in high temperature and high humidity environment. In this thesis, the accelerated life test for failure caused by ECM on fine pattern substrate, $20/20{\mu}m$ pattern width/space applied by Semi Additive Process, was performed, and through this test, the investigation of failure mechanism and the life-time prediction evaluation under actual user environment was implemented. The result of accelerated test has been compared and estimated with life distribution and life stress relatively by using Minitab software and its acceleration rate was also tested. Through estimated weibull distribution, B10 life has been estimated under 95% confidence level of failure data happened in each test conditions. And the life in actual usage environment has been predicted by using generalized Eyring model considering temperature and humidity by developing Arrhenius reaction rate theory, and acceleration factors by test conditions have been calculated.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.6
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• pp.21-31
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• 2018

In Hyper-Connected Society, IoT-based Lifelog data is used throughout the Internet and is an important component of customized services that reflect user requirements. Also, Users are using social network services to easily express their interests and feelings, and various life log data are being accumulated. In this paper, Intelligent characters using IoT based lifelog data have been developed and qualitative/quantitative data are collected and analyzed in order to systematically grasp emotions of users. For this, qualitative data through the social network service used by the user and quantitative data through the wearable device are collected. The collected data is verified for reliability by comparison with the persona through esnography. In the future, more intelligent characters will be developed to collect more user life log data to ensure data reliability and reduce errors in the analysis process to provide personalized services.