• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.22 no.4
• /
• pp.419-429
• /
• 2021

This study examined the differentiation and influence of socio-demographic factors that affect the daily living ability of the elderly living in urban and rural areas. The research data is 「Korean Social Life, Health and Aging Project」. The analysis target was 400 urban elderly people (K-gu, Seoul: surveyed Apr. ~ Jun. 2017) and 524 rural elderly people (B-myeon, Gyeonggi-do: surveyed Dec. 2015 ~ Feb. 2016). The research methods included descriptive statistical analysis, chi-square test through cross-analysis, correlation analysis, and logit analysis. The summary of the research results is as follows. First, the ratio of 'complete independence' in ADL/IADL was 'ADL(city)> ADL(rural)> IADL(city)> IADL(rural)". Second, the probability that the elderly living in rural areas will experience a lower ADL level and lower IADL level was 7.1 times and 3.25 times higher than that of the urban elderly. Lastly, the statistically significant variable affecting the ADL level of urban elderly was depression, and the IADL level was gender, age, economic activity, spouse presence, and depression. Age and economic activity were statistically significant variables for the ADL level of the rural elderly, and the IADL level was gender, age, and economic activity.

• Korean Journal of Forensic Psychology
• /
• v.11 no.1
• /
• pp.89-115
• /
• 2020

Traditional deception detection methods had examined the difference of one's autonomic physiological responses through asking crime-related and crime-unrelated questions. There has been a continuing controversy regarding the accuracy and validity of the test, and thus, many researchers were motivated to explore and develop alternative efficient methods of detection in which one of them is known as P300-based Complex Trial Protocol (CTP). The P300-based CTP detects deception through comparing the P300 amplitudes between probe and irrelevant stimuli and is known as a counterstrategy of countermeasures. However, many previous studies have used countermeasures created from Rosenfeld et al.'s work (2008). The present study initially conducted a survey asking open-ended questions about the countermeasure use to acquire participant-oriented countermeasures for the main experiment. Then, the study aimed to evaluate whether the CTP can accurately detect deception even in the use of survey-based countermeasures. We firstly selected a set of participant-oriented countermeasures through survey questions. Then, a total of 50 participants were divided into three groups (innocent, guilty, and countermeasures) and performed the CTP. Those assigned to the countermeasures group covertly performed mental countermeasures during the CTP. The results of P300 amplitude analysis revealed that the guilty group's P300 amplitude of probe stimuli was significantly larger than that of irrelevant stimuli. Countermeasures group also had a significantly larger P300 amplitude for probe stimuli compared to irrelevant stimuli, even in the use of countermeasures. The results of bootstrapped amplitude difference (BAD) showed a detection accuracy rate of 81.25%, 82.35%, 82.35% for the innocent, guilty, and countermeasures groups, respectively. These findings demonstrate that the CTP can obtain a high detection rate in participant-oriented countermeasures and suggest the potential use of the CTP in the field.

• Journal of Digital Convergence
• /
• v.15 no.1
• /
• pp.329-338
• /
• 2017

This study aims to identify factors to affect cancer screening utilization and differences in cancer screening by household income. This research selected 3,393 adults aged ${\geq}40years$ among surveyees from the 6th(2014) Korea National Health and Nutrition Examination Survey. We analyzed state of cancer screening utilization according to general characteristics, life style, health status, income level using descriptive statistics. Logistic regression analysis was used to examine the factors associated with cancer screening utilization. In result, cancer screening rate was significantly different according to household income. And the significant factors associated with cancer screening utilization were sex, age, marital status, education level, economic activity, private insurance, smoking, presence or absence of high physical activity, number of chronic diseases, and household income. This indicates that the effective cancer screening program on the low household income, chronic disease patients is needed, suitable for digital age. We believe that these results will be used positively for the equity of cancer screening utilization, providing the basic materials for the further research on the establishment of the health-related policy.

• Composites Research
• /
• v.32 no.5
• /
• pp.206-210
• /
• 2019

As the use of composite materials of woven structure has expanded to various fields such as automobile and aviation industry, there has been a need for reliability problems and prediction of mechanical properties of woven composites. In this study, finite element analysis for predicting the mechanical properties of composite materials with different weaving structures was conducted to verify similarity with experimental static properties and an effective modeling method was developed. To reflect the characteristics of the weave structure, the meso-scale representative volume element (RVE) was used in modeling. Three-dimensional modeling was carried out by separating the yarn and the pure matrix. Hashin's failure criterion was used to determine whether the element was failed, and the simulation model used a progressive failure model which was suitable for the composite material. Finally, the accordance of the modeling and simulation technique was verified by successfully predicting the mechanical properties of the composite material according to the weave structure.

• Proceedings of the Korea Database Society Conference
• /
• 1994.09a
• /
• pp.183-198
• /
• 1994

$\circledcirc$ 초고속정보통신망이란\ulcorner $\square$ 음성, 기호 및 영상 등의 멀티미디어 서비스를 실어보내는 정보고속도로 $\square$ 기존 통신망으로는 한계에 직면하고 있는 정보전달속도와 영상전송서비스를 강화시키는 새로운 고속화, 대용랑화된 통신망 $\square$ 초고속, 대용량, 쌍방항의 음성, 문자ㆍ도형, 영상을 포함한 복합서비스를 전송하는 모든 유무선망의 집합체 $\square$ 전화, 컴퓨터, TV가 통합된 "완전한 멀티미디어서비스" 개발 및 공급을 촉진하는 새로운 기반구조(중략)

• TTA Journal
• /
• s.71
• /
• pp.37-39
• /
• 2000

최근 글로벌 표준화의 커다란 흐름을 한마디로 말한다면 표준화협력으로 대변될 수 있다. 왜냐하면 대부분의 표준화 대상들이 유무선 복합 시스템이며 하드웨어, 소프트웨어가 결합된 초고속 멀티기능, 멀티서비스형 표준화들이며 때로는 주파수 스펙트럼 할당 등 규제부문까지 연계 되어 있어 표준화내용 및 세부 대상들이 매우 다양하고 복잡한 실정이고, 이러한 대상들은 특정 표준화기구에서 전부 다루기는 매우 어려운 실정이다. 따라서 ITU 등 주요 국제표준화기구를 중심으로 해당 분야별로 표준화협력 및 연계활동이 활발히 전개되고 있고 그 중 가장 좋은 예는 IMT-2000 표준화를 꼽을 수 있다.

• Proceedings of the Membrane Society of Korea Conference
• /
• 2004.11a
• /
• pp.186-188
• /
• 2004

• 한국정보통신설비학회:학술대회논문집
• /
• 2003.08a
• /
• pp.332-335
• /
• 2003

WOS는 신속한 의사결정 정보의 공유 및 협업 지원이 점점 더 중요시되는 오늘날의 기업업무 환경에서 요구되는 통신수요를 충족시킬 수 있는 구내 유무선 복합 서비스 시스템이다. 본 논문에서는 현재의 분산형 WOS의 구조에 있어서의 주요 문제점들을 고찰하고 이를 해결하기 위한 집중형 WOS 구조를 제시한다.

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2003.05a
• /
• pp.266-267
• /
• 2003

최근, 기계의 분석 정밀도가 높아짐에 따라 어류 이석 내 미량원소를 이용한 연구가 활발히 진행되고 있다. 이석은 균형감각기관으로서 칼슘과 단백질의 복합구조로 이루어져 있으며, 어류의 전 생활사에 걸쳐서 성장한다. 이렇게 형성된 어류의 이석내 화학조성은 형성 후엔 변화하지 않는다는 특징을 가지고 있다(Campana,1999). 위와 같은 특징을 바탕으로 이석 내 미량원소 또는 동위원소의 함량비율을 분석하여 어류에 대한 계군분리, 어류의 서식환경 추적, 오염 정도, 그리고 어류의 회유 유무와 경로, 연령사정 등의 연구를 하고 있다(Campana, 1999). (중략)

• The Science & Technology
• /
• no.3 s.454
• /
• pp.20-21
• /
• 2007

"세계 최고의 IT R&D기관으로 자리매김할 수 있도록 글로벌 R&D체계를 구축하는데 주력하겠습니다. 디지털 컨버전스 시대를 맞아 융합기술의 창출의 핵심기지로 거듭나는데도 조직의 역량을 집중해 나가겠습니다." 국내 최대 IT 국책연구기관의 수상으로 취임 100일을 맞은 최문기 한국전자통신연구원(ETRI)원장은 최근 들어 IT분야의 최고 화두인 유무선 통합과 통방 융합 등을 대비해 ETRI가 IT 융복합화 연구를 선도하는 기관으로, 향후 30년의 ETRI 르네상스를 실현하는 초석을 놓는 가장 중요한 시기가 올해라는 점에서 이에 대한 핵심원천기술과 미래전략기술개발에 최선의 노력을 다하겠다고 피력했다.