• Journal of Korean Society of Rural Planning
• /
• v.12 no.2 s.31
• /
• pp.11-16
• /
• 2006

Value of rural amenity resources scattered in rural area is difficult to be assessed isolatedly. Rural Amenity Resources Map (RARM) is developed for assessing rural resources based on specific territory. In the developing process, knowledge based system is oriented because rural amenity is differed from personal feeling. Possible decision trees in RARM are developed in reviewing process of previous GIS based decision support systems, and information strategy planning is constructed for achieving goals such as rural tourism, down shifting, and rural investment.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2010.07a
• /
• pp.425-428
• /
• 2010

웹을 통해서 수천 또는 심지어는 수백만 명의 정보 수집이 가능해짐에 따라 이러한 사용자들로부터 생성된 데이터를 결합하는 알고리즘을 사용하여 새로운 비즈니스를 창출하는 집단지성이 크게 대두되고 있다. 최근 건강정보에 있어서도 웹을 통하여 사용자들이 정보의 획득이 일반화되면서 웹을 이용하는 사용자의 패턴을 이용하여 식중독이나 독감 같은 공공보건 관련 예후를 예측하는데 사용될 수 있다. 본 논문에서는 인터넷 사용자들의 검색 동향을 통해 독감의 유행을 예측하기 위해 국내외의 인플루엔자 표본감시 데이터 및 검색 동향을 비교하였다. 이러한 사용자들이 독감 관련 검색어의 증가는 실제 독감의 유행과 높은 상관관계(p=0.5, p=0.76)를 보였으며, 이는 인터넷 검색 동향만으로도 초기 단계에서 감시하고자 하는 질병의 발생 양상과 유행 양상의 전개를 예측하는데 중요한 역할을 수행할 수 있음을 의미하는 것으로 인터넷 검색 동향을 통해 공공보건을 예측하는 시스템을 제시한다.

• Journal of information and communication convergence engineering
• /
• v.9 no.1
• /
• pp.74-77
• /
• 2011

PSPICE modeling of a commercial LED driver IC (TOP245P) and PC817A optocoupler is proposed for the switch-mode power supply (SMPS) (applicable to LED driver) design and simulation. An analog behavioral model of the TOP245P IC including the shunt regulator, under-voltage(UV) detection, over-voltage(OV) shut-down and SR flip-flop is developed by using PSPICE. The empirical equation of PC817A current transfer ratio (CTR) is fitted from the datasheet of PC817A. Two types of SMPSs are simulated with the averaged-model and switching-model. The simulation results by the proposed PSPICE models are in good agreement with those in the data sheet and an experimental data.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.01a
• /
• pp.333-334
• /
• 2014

유니티3D는 게임 회사에서 가장 많이 사용하고 있는 게임 엔진 중의 하나이다. 다양한 장르의 게임을 쉽고 간편하게 개발 할 수 있고, 또한 개발비를 절약 할 수 있는 장점을 가지고 있다. 다양한 플랫폼 지원으로 인해 iOS(iPhone Operating System) 환경, 안드로이드(Android) 환경에 맞도록 최적화 하여 플랫폼 전환도 가능하다. 본 논문은 유니티3D에서 강점인 NGUI(Next-Gen UI)의 사용방법과 설계에 대한 방법을 통해서, 사용자 인터페이스 개발에 쉽게 접근 할 수 있는 방법에 대해 소개한다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.01a
• /
• pp.335-336
• /
• 2014

중국의 게임 시장은 매우 높은 성장률을 기록하며, 성장하고 있다. 우리나라의 게임 업체들은 중국 수출을 통해 높은 수익을 얻고, 높은 경쟁력을 유지하고 있다. 특히 중국 온라인 게임 시장의 2011년 성장률은 클라이언트용 19.5%, 브라우저 게임 76.6%, 모바일 게임 성장 41.8%을 기록하고 있다. 본 논문은 중국에서 급성장하고 있는 모바일 게임 및 PC게임 시장 동향에 대해 분석한 것에 대해 설명한다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2012.07a
• /
• pp.329-330
• /
• 2012

인터넷과 웹의 발전으로 수많은 정보가 발생하고 있으며, 공공기간도 많은 정보를 축적하고 있다. 이에 각 국에서는 공공기간이 보유하는 데이터를 공개하고 있으며 우리나라도 통계청을 중심으로 다양한 데이터를 공개하고 있다. 그러나 공개된 자료의 활용도가 낮은 편이다. 본 논문에서는 공개된 공공데이터 중 에너지 소비 데이터를 활용하고자 한다. 에너지 소비 데이터를 미래 예측 연구에 많이 이용되고 있는 마코프 프로세스를 적용하여, 에너지 소비를 예측할 수 있는 모델링을 제안하고, 그 기대 효과에 대해 논의 한다.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.19 no.11
• /
• pp.1204-1212
• /
• 2008

The paper proposes a new signal model which is revised from the commonly used signal model. Recently, many research institutions had a research about CW bio-radar for detecting he heartbeat and respiration. However, when the bio-radar detects the heartbeat using the previous signal model, the bio-radar has a disadvantage of weakness about he residual phase and AWGN. Also, the model is inappropriate in ergonomics because this signal model supposes hat the heart and lung are located at a same place. In this paper, the modified signal model, which is appropriate n ergonomics, is proposed. This paper analyzes and compares with the performance for detecting the heartbeat and respiration using the previous model and revised model in AWGN and multi-path environment.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.37B no.11
• /
• pp.1022-1032
• /
• 2012

In OFDMA-based wireless mesh networks, synchronization of carrier frequencies among adjacent nodes is known to be difficult. In this paper, a distributed synchronization technique is proposed to solve the synchronization problem in OFDMA-based wireless mesh networks by using the bio-inspired algorithm. In the proposed approach, carrier frequencies of all nodes in a mesh network are converged into one frequency by locally synchronizing the frequencies of adjacent nodes. It may take a long time to be converged in some topologies since the convergence characteristic of carrier frequencies in a mesh network may vary depending on the size of the network and deployment of nodes. It is shown that fast frequency synchronization, not heavily depending on the topology, can be achieved through the proposed algorithm with an adjustable weight.

• Convergence Security Journal
• /
• v.16 no.5
• /
• pp.57-63
• /
• 2016

In recent years, there is growing interest in 'Fin-tech' in the domestic and international financial sector. And a variety of services in such a situation has emerged. To ensure the safety of from hacking attacks, many new technologies have been developed. These leading technology is the Bio-authentication method that you consider applying to the financial sector. Bio authentication is using biometric information. Also it is known that can cope the threat of fabrication and modifying attacks with shared and stored. However, Recently, When you look at hacking incidents of biometric data(560 million cases) in the United States Office of Personnel Management and advent of the fingerprints counterfeit technology, We can be known that should be reconsidered about the safety of bio-certification. Especially, it should be provided with a response measures for the problem of embezzlement that biometric information already been leaked. Thereby In this paper, by investigating biometric technologies and practices applied and of the vulnerability factor in many industries, it expected to be utilized in the prepared threats countermeasures in accordance with the application of the biometric authentication technology in a future.

• Journal of the Institute of Electronics and Information Engineers
• /
• v.51 no.6
• /
• pp.50-59
• /
• 2014

In mobile healthcare service, the accurate detection and the notification of the emergency situation are important to chronic patients' life. In the existing healthcare service, the medical staff or medical service provider always judges patients' health status by monitoring from the measured from bio-data. However, it is difficult to monitor many patients in real-time simultaneously, because the medical staff should monitor the health status continuously. Furthermore, an emergency condition diagnosis based solely on the statistical level of the bio-data may be difficult, since the emergency judgment of the bio-data might differ depending on the health characteristics of each person such as age, history of disease, gender, etc. In order to solve this problem, this article presents an mobile healthcare system for emergency bio-data management using a personalized emergency policy. The salient feature of the proposed mobile healthcare system is that the characteristics of the health status of an unique patient is defined to the policy, which is used to judge the emergency condition of the bio-data measured from the patient. The prototype of proposed mobile healthcare system has been built to demonstrate the design concept.