• KIEAE Journal
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• 제11권2호
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• pp.45-57
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• 2011

As climate change and environmental degradation become more evident, the public's concern and knowledge on sustainable development requires planners to have regards to social impacts and long term economic viability, as well as environmental impacts. The main objective of this study is to analyze existing sustainability assessment tools for single detached houses. The most widely used oversea tools are selected. From analysis on the existing assessment tools, "Impact Estimator" by Athena Institute, "Bees 4.0" by NIST, "CASBEE for Home" by JSBC, "Envest for Housing" by Energy Saving Trust, "LISA" by Center for Sustainable Technology, "SBTool" by iiSBE (International Initiative for Sustainable Built Environment), it can be seen that the current sustainability assessment programs are in need of much improvement. The selected programs are analyzed on scope of program setting & running, data input & output, assessment categories, and strength & weakness. This study is to supplement the existing sustainability assessment tools for single detached houses, and provide information for the development of web-based program to assist architects or home owners to plan sustainable houses in Korea in the schematic design stage.

• International Journal of Human Ecology
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• 제10권2호
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• pp.71-78
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• 2009

Efforts were made to improve the efficiency of college education through the use of information technology. This paper investigates student perceptions of a lecture club provided on a social networking website. For the empirical study, the instructor ran a lecture club for two consecutive semesters on Cyworld (www.cyworld.co.kr), a popular website among Korean youth. The research subjects were students enrolled in a Popular Culture & Fashion class. A questionnaire was distributed on the last day of the lectures. After excluding students with perfunctory responses and those who did not sign up for the community website, a total number of 297 questionnaires were used for analysis. Descriptive statistics, Pearson correlation analysis, one-way ANOVA analysis, Duncan test, and t-test were carried out, with the SPSS for Windows 12.0 being used for statistical analysis. The findings show that most students subscribed to the website and responded with a favorable attitude that the lecture club was helpful.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2009년도 춘계학술발표대회
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• pp.1075-1078
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• 2009

Web 2.0 시대가 도래하면서부터 새로운 소프트웨어 배포 방식인 SaaS가 등장하였다. 보안 분야에서도 기존의 소프트웨어적인 보안 방식이 아닌 하드웨어적인 보안 방식을 위해 TPM이라는 보안 칩이 개발되었다. 본 논문에서는 TPM 칩을 사용하여 보다 신뢰적인 측면이 강조된 신뢰 컴퓨팅 기반 SaaS 모델을 설계하고, 설계된 모델의 가장 기본적인 기능인 로컬 PC 레벨의 PCR 값 인증 프로그램과 로컬 PC 레벨 어플리케이션 무결성 측정 프로그램을 구현하고 이를 평가한다.

• 디지털융복합연구
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• 제12권8호
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• pp.147-155
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• 2014

소셜커머스는 소셜미디어와 쇼핑의 결합이다. 웹 2.0 기술에 기반을 둔 소셜커머스는 다양한 잠재력을 가지고 있고, 이러한 잠재력을 통해 소비자를 유인하고 있다. 한국의 대학생들은 소셜미디어 사용에 매우 적극적인데, 소셜커머스 사용에 있어서도 매우 적극적 소비자로 추정된다. 이러한 관점에서 본 연구는 한국 대학생들이 소셜커머스를 이용하게 하는 것이 무엇인지를 밝히기 위해 구전효과(Word-of-Mouth)과 인지적 즐거움(Percieved Enjoyment)으로 확장한 기술수용모형을 검정했다. 연구결과, 구전효과는 인지적 즐거움을 매개하여 소셜커머스 이용의도에 영향을 미치고 있었다. 인지적 즐거움은 기술수용모형의 모든 구성개념들에 긍정적 영향을 미치고 있다. 따라서 구전효과와 인지적 즐거움으로 확장한 기술수용모형은 한국의 소셜커머스 맥락에서 유효함이 입증되었다. 마지막으로 향후 연구를 위한 함의와 제안을 제시했다.

• Genomics & Informatics
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• 제14권1호
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• pp.20-28
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• 2016

Internet addiction (IA) has become a widespread and problematic phenomenon as smart devices pervade society. Moreover, internet gaming disorder leads to increases in social expenditures for both individuals and nations alike. Although the prevention and treatment of IA are getting more important, the diagnosis of IA remains problematic. Understanding the neurobiological mechanism of behavioral addictions is essential for the development of specific and effective treatments. Although there are many databases related to other addictions, a database for IA has not been developed yet. In addition, bioinformatics databases, especially genetic databases, require a high level of security and should be designed based on medical information standards. In this respect, our study proposes the OAuth standard protocol for database access authorization. The proposed IA Bioinformatics (IABio) database system is based on internet user authentication, which is a guideline for medical information standards, and uses OAuth 2.0 for access control technology. This study designed and developed the system requirements and configuration. The OAuth 2.0 protocol is expected to establish the security of personal medical information and be applied to genomic research on IA.

• 한국학교ㆍ지역보건교육학회지
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• 제15권2호
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• pp.23-38
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• 2014

Objectives: Since juveniles' unhealthy diets, and their problematic behavior resulting from drinking cause serious harm to those who are in a period of growth, we attempted to find out the relationship between juveniles' dietary habits and their drinking alcohol. Methods: The data was collected from 74,186 people in a 2012 web-based survey of Korean juveniles' health behavior, which was jointly conducted by the Ministry of Education, Science, and Technology, the Ministry of Health and Welfare, and the Korea Centers for Disease Control. This study conducted a logistic regression analysis using SPSS 18.0. Results: Juveniles who consume fast food at least once in a day have a significantly higher chance of binge drinking (OR=3.063, 95% CI=2.332~4.023), problematic drinking(OR=6.041, 95% CI=4.947~7.379) than those who don't. It also indicates that juveniles who don't eat breakfast have a significantly higher chance of binge drinking (OR=1.358, 95% CI=1.158~1.593), problematic drinking(OR=1.762 95% CI=1.548~2006) than those who eat breakfast every day. Conclusions: Irregular breakfast or a frequent intake of fast food causes problematic drinking, and binge drinking. Therefore, when planning programs for the prevention of juvenile drinking, it seems necessary to include education of healthy dietary habits.

• Spatial Information Research
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• 제23권4호
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• pp.57-66
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• 2015

현재 웹 서비스에서 활용되고 있는 이미지 지도의 기능적 한계와 비용 이슈로 인해 사용자들의 요구사항을 정확히 충족시켜줄 수 없는 문제점을 갖고 있다. 그래서 본 연구에서는 HTML5 기술을 이용하여 벡터 지도 제작 및 이를 활용한 기능과 서비스를 구현하여 사용자들의 목적에 적합한 개인화 지도를 제작하는데 목적이 있다. 연구결과 기존의 웹 환경에서 활용되는 이미지 기반의 지도에서 기울임 및 회전기능에서의 시인성이 떨어지는 문제를 HTML5 벡터지도에서 해결하였다. 그리고 지도정보를 접근하여 배경과 명칭 데이터를 선별적으로 표출하는 기능을 구현하여 지도 표출의 다양한 결과를 도출하였다. 또한, 성능 비교 결과로서 상용화 지도 서비스에서 최소 0.78sec에서 최대 7.56sec 의 최초로딩 소요시간 범위에 포함되는 0.88sec의 소요시간이 측정되어 상용화 가능성을 도출하였다. 전국 도엽을 제작하기 위한 이미지 지도의 총 용량 180GB에 비해 벡터 지도 제작 용량은 90% 이상 감소한 2.5GB로 제작되어 저장 공간에 대한 비용 이슈를 해결하였다. 결론적으로, 본 연구의 HTML5 벡터지도 설계 및 구현에 대한 연구는 다양한 정보의 활용 및 기능 확장을 통해 공간 정보를 활용하는 사용자의 요구사항에 적합한 정보를 제공하는 방안을 제시하였다.

• 대한토목학회논문집
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• 제43권1호
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• pp.63-69
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• 2023

'탄소중립 기술적용 시나리오 모형 (CATAS; Carbon-neutrality Assessment based on Technology Application Scenario)'은 공간 단위에서 에너지전환, 수송, 건물 등 분야에 탄소중립 기술을 적용했을 경우 온실가스 감축 효과성 분석을 제공한다. 모형의 개발범위는 온실가스 배출원은 온실가스 직접배출량 대상으로 분석하며, 공간적 범위는 직접·간접배출의 경계를 공간적 범위로 설정하였다. 그리고 기술적 범위는 2050 탄소중립 시나리오에서 온실가스 배출량이 가장 큰 전환부문의 9개 기술과 산림 흡수원을 포함하였다. 탄소중립률 평가 방법론은 ①온실가스 배출현황 분석, ②기술도입에 따른 에너지생산량 예측, ③온실가스 감축량 산정, ④탄소중립률 산정까지 4단계로 이루어져있다. 웹기반 CATAS-BASIC을 개발 한 후 서울시의 ｢2050 온실가스 감축추진계획｣상 제시된 신재생에너지 보급목표를 적용하여 분석을 실시하였다. 태양광·수소연료전지·수열을 적용한 결과, 서울시의 전환부문 배출량인 1.49백만 tCO₂eq 중 기술도입으로 0.43백만 tCO₂eq 감축하여 전환부문 탄소중립률은 28.94 %로 분석되었다.

• Smart Structures and Systems
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• 제2권2호
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• pp.115-126
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• 2006

The Terra-Scope system is an affordable 4-D down-hole seismic monitoring system based on independent, microprocessor-controlled sensor Pods. The Pods are nominally 50 mm in diameter, and about 120 mm long. They are expected to cost approximately $6000 each. An internal 16-bit, extremely low power MCU controls all aspects of instrumentation, eight programmable gain amplifiers, and local signal storage. Each Pod measures 3-D acceleration, tilt, azimuth, temperature, and other parametric variables such as pore water pressure and pH. Each Pod communicates over a standard digital bus (RS-485) through a completely web-based GUI interface, and has a power consumption of less than 400 mW. Three-dimensional acceleration is measured by pure digital force-balance MEMS-based accelerometers. These accelerometers have a dynamic range of more than 115 dB and a frequency response from DC to 1000 Hz with a noise floor of less than $30ng_{rms}/{\surd}Hz$. Accelerations above 0.2 g are measured by a second set of MEMS-based accelerometers, giving a full 160 dB dynamic range. This paper describes the system design and the cooperative shared-time scheduler implemented for this project. Restraints accounted for include multiple data streams, integration of multiple free agents, interaction with the asynchronous world, and hardened time stamping of accelerometer data. The prototype of the device is currently undergoing evaluation. The first array will be installed in the spring of 2006.

• Journal of Information Technology Applications and Management
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• 제17권1호
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• pp.55-81
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• 2010

ASP service users' needs for flexible and customized services to deal with changes in business environments and user contexts seems to be appealing due to the progress of technology and IT paradigm such as ubiquitous computing and web 2.0. Through the lens of expectancy confirmation and flexibility, we explored factors that influence users' repurchase intent and organizational benefit in ASP services. With an empirical study, we examined information quality, service quality, flexibility, customization, user satisfaction, trust in ASP services can contribute to the repurchase intent and organizational benefit. In addition to, business type and company size are added to the research model as control variables for user satisfaction, trust, and repurchase intent. Our findings suggested that the service quality and flexibility significantly were cruicial determinant of user satisfaction in ASP services. Furthermore, user satisfaction significantly influenceS repurchase intent, and organization benefits were affected by repurchase intent. This study has important implications for academic researchers and practitioners who seek to understand factors that affect ASP service users' repurchase intent and organization benefits.