• Information and Communications Magazine
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• v.25 no.11
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• pp.48-52
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• 2008

기술혁신은 끝없이 지속적, 반복적으로 발생하지만, 최근의 기술혁신은 자체적인 혁신의 한계에 직면하고 있는 것처럼 보여진다. 국가경제의 발전은 개별적으로 진행되어 온 기술혁신에 크게 의존하지만, 이제 개별적인 혁신의 한계를 극복하기 위하여 이종간 기술 및 산업융합이 활발하게 모색되고 있다. 융합이라는 새로운 환경은 개별적인 기술이나 산업에 다양한 기회와 위험을 제공하게 될 것이다. 융합이라는 것이 단지 하나의 영역에 머무르는 개념이 아니라 여러 분야에 걸쳐서 대단히 광범위한 영역에서 발생하게 될 것이라는 점에서 그렇다. 이미 초기적인 융합의 현상들은 도처에서 발견되고 있으며, 이제 이를 더욱 확대 발전시키고 심화시켜 나가기 위한 노력들이 진행중이다. 융합을 가속화시키고 심화시켜 나가는데 필요한 요인은 무엇일까? 다양한 방법과 수단들이 거론될 수 있겠지만, 융합 발생의 광역성이라는 측면에서 개인의 창의력이 대단히 중요하다. 제한적인 인간의 역량으로 모든 분야에서 창의력을 발현한다는 것은 쉽지 않기 때문이다. 이러한 관점에서 우리나라 전체 기업의 대다수를 차지하는 중소기업의 역할은 대단히 중요하다. 국민소득 3만불 이상을 달성하기 위해서는 대기업과 중소기업의 육성을 위하여 다양한 정책을 입안하고 집행하여 왔지만, 중소기업의 경쟁력은 아직도 취약한 것이 회피할 수 없는 현실이다. 개인의 역량과 창의력 발현이 중시되는 융합환경에서 중소기업 육성을 위한 정책은 기존의 물적자원 중심의 지원방식과는 달리 다양한 협력네트워크의 구축과 네트워크 기반의 정보 공유 및 활용을 위한 방향으로 전환될 필요가 있다. 정보의 공유와 활용을 통하여 창의적인 아이디어의 발현이 더욱 확대되고 심화될 수 있기 때문이다.

• Journal of Information Technology Applications and Management
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• v.22 no.2
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• pp.149-169
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• 2015

This study tried to find out how to overcome multicollinearity problems in the structural equation model by creating a hierarchical construct model about the repurchase intention of social commerce. This study selected, as independent variables, price, quality, service, and social influence, based on literature review about social commerce, and then, as detailed variables of independent variables, selected system quality, information quality, transaction safety, order fulfillment and after-sales service, communication, subjective norms, and reputation. As results of empirical analysis about hierarchical construct model, all the independent variables were accepted having a significant impact on repurchase intention of social commerce. Next, this study analyzed the competition model that eight independent variables of price, system quality, information quality, transaction safety, order fulfillment and after-sales service, communication, subjective norm, and reputation directly influence the repurchase intention of social commerce. As results of empirical analysis, system quality, information quality, transaction safety, communication appeared to be insignificant. This study showed that hierarchical construct model is useful to overcome the multicollinearity problem in structural equational model and to increase explanatory power.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.790-791
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• 2015

This study analysis the global market trends of information security industry expanding its area through the convergence with other technologies. domestic market of information security industry is expected to show a high growth rate, given that the share of the domestic market in the world market is very low, heightened awareness caused by several information accidents, and the expansion of physical information industry's exports. The crucial point to note is the prospect that the domestic market will be led by its product market, but global market will be spearheaded by its service market. Consequently, to overcome current slump, it is need to establish market promotion strategies focused on fostering the information security service market which is higher value added than information security product market.

• Proceedings of the KIEE Conference
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• 2004.07d
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• pp.2652-2654
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• 2004

홈 네트워크나 가로등 제어에 가장 적합한 솔루션 중 하나가 전력선 통신기술이다. 전력선 통신의 사용 주파수 대역은 $50kHz{\sim}450kHz$으로, 이 주파수 대역은 잡음이 매우 많이 존재한다. 또한 시공간에 따른 변화의 요인이 많이 존재하기 때문에 채널 모델링이 매우 어려운 실정이며, 이를 극복할 수 있는 방안으로 영교차점을 이용한 전력선 모뎀을 설계하고자 한다. 변조 방식은 Chirp 심볼을 사용하고, 주파수 대역은 $100kHz{\sim}400kHz$를 사용하였다. 전력선 채널로부터 정보를 획득하기 위해서 효율적인 수신기 구조를 채택하였다. 즉 채널 상황에 적응이 가능하고, 상관에 필요한 필터의 계수를 들어오는 심볼로부터 구하는 방법으로, 다음에 들어오는 심볼과의 상관값을 구하여 정보 신호를 판별하는 형태로 구성하였다. 영교차점을 기준으로 신호를 송수신하는 형태를 취했으며, 영교차점 기준에 들어오는 잡음은 chirp의 대역 확산 특성에 의해서 억제될 수 있다. 이런 기술에 의해서 견실한 전력선 통신 모뎀구현이 가능하였다.

• Journal of muscle and joint health
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• v.27 no.2
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• pp.103-111
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• 2020

Purpose: This study aimed to investigate the relationship between general hospital nurses' work environment, resilience, and intention to remain, as well as to identify the factors associated with nurses' intention to remain. Methods: Study participants were nurses at a general hospital in Jeollabuk-do, South Korea. Data collection was undertaken from July 6th to 20th, 2017, through questionnaire responses from 257 nurses. Descriptive statistics were employed for data analysis, including: independent t-test, one way ANOVA, Pearson's correlation coefficient, and multiple regression analysis using SPSS/WIN 22.0. Results: Nurses' work environment, resilience, and intention to remain were found to have a statistically significant correlation. Intention to remain showed statistically significant positive correlations with the nurse's work environment (r=.72, p<.001), resilience (r=.50, p<.001). Factors found to influence intention to remain were work environment, resilience, job satisfaction, and health status. Conclusion: The study findings support the development of a specialized program to strengthen nurses' intention to remain. During the program's formulation, it is necessary to improve nurses' work environment and find ways to bolster the resilience of individual nurses.

• Women's Health Nursing
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• v.23 no.2
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• pp.117-125
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• 2017

Purpose: The purpose of this study was to investigate factors affecting on infertility-related quality of life in women undergoing assisted reproductive techniques focusing on depression and resilience. Methods: With correlational survey design, 125 infertile women who were receiving inpatient and outpatient treatment in K university hospital in D city completed a structured questionnaire. Results: There was a significant negative correlation between depression and resilience and between the depression and the quality of life. There was a significant positive correlation between resilience and the quality of life. The factors affecting on infertility-related quality of life were depression, burden of expenses, and relationship with husband which explained 48% in the quality of life. Conclusion: It is necessary to develop and apply nursing programs that include individual counseling and education for infertile couple. Social support including financial support and better environment for these women will be also essential.

• Proceedings of the Acoustical Society of Korea Conference
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• spring
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• pp.214-217
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• 1999

본 논문은 비균일, 비선형 분포를 가지는 비정형 하이드로폰 어레이를 견인하여 목표물로부터 발생된 협대역 신호에 대한 DOAs(Direction-Of-Arrivals) 및 도플러 주파수 정보를 동시에 추정하는 기법을 제안한다. 균일분포 선형 어레이를 견인하는 전통적인 처리기법은 DOA 추정에 국한되어 활용될 수 있다는 한계점을 가지고 있을 뿐 아니라 목표물의 특징을 파악할 수 있는 중요한 정보 중의 하나인 발생신호의 주파수 성분을 추정하기 위해서는 주파수 스펙트럼을 별도로 구성하여야하는 등의 난점을 지니고 있어 조기 경보 능력의 치명적인 제한점을 가질 수 있으며, 하이드로폰 어레이의 구조가 외부적인 환경요인에 의하여 선형을 유지하지 못함으로써 추정능력을 저하시킬 수 있다. 본 논문에서는 이러한 한계성을 극복하기 위하여 불규칙한 곡면을 가지고 있는 모함의 측면에 하이드로폰 어레이를 설치하여 목표물의 DOA 뿐만 아니라 모함의 이동에 의해 목표물과 사이에서 발생하는 도플러 주파수까지 동시에 추정하는 기법을 제안한다 특별히, 도플러 주파수 추정은 취득신호에 대한 퓨리에 변환과정을 거치지 않고 추정함으로써 계산량을 감소시킬 수 있다.

• Journal of Digital Contents Society
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• v.5 no.2
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• pp.133-142
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• 2004

The purpose of this study is to analyze characteristic of mobile commerce based on mobile internet and diagnose obstacles and suggest promotional plans in terms of for mobile commerce. First of all, this study defines the concept of mobile internet and mobile commerce as on, and then analyzes the characteristic and the status quo of mobile commerce in the aspect of technology and business and customer. In conclusion this study there are many problems to overcome to expand mobile commerce environment. However, the environment of internet is moving from online to wireless and the volume of e-commerce through internet is growing rapidly. Thus, mobile commerce will be a matter of course in information society.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.24 no.1
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• pp.72-83
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• 2017

Purpose: The purpose of the study was to identify the level of resilience, autonomous motivation, depression and self-care and their correlates in elders with hypertension. Methods: The participants were 200 elders with hypertension living in J, I, and K city. Data were collected through face-to-face interviews using the Resilience Scale, Treatment Self Regulation Questionnaire, Short Form Geriatric Depression Scale, and Hypertension Self-care Scale. Results: Total scores for resilience, autonomous motivation, depression, and self-care were $109.65{\pm}20.78$, $38.18{\pm}5.99$, $8.33{\pm}2.61$, and $52.06{\pm}6.94$, respectively. Autonomous motivation, income, acceptance of self and life, resilience, experience of hypertension education, and gender were verified as factors influencing self-care. These factors accounted for 51.6% of self-care. Conclusion: Understanding these factors is essential for developing effective interventions to improve self-care in elders with hypertension.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.2
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• pp.457-463
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• 2012

Changing the environment around detecting areas may lower the performance of a video-based accident detection system. Region of interest(ROI) and background information changing constantly on account of the car headlights at night and a sudden changes in the weather are the biggest factors to increase the ratio of wrong results. Thus, we proposed and implemented the integrated accident detection system combined the video-based system and the laser-based imaging system. In this paper, we were able to overcome the majority problem of video-based system and it was a meaningful results that it can improve the reliability for the system.