• Title/Summary/Keyword: Connected home

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Power Aware Routing Protocol in Multimedia Ad-hoc Network Considering Hop Lifetime of Node

  • Huh, Jun-Ho;Kim, Yoondo;Seo, Kyungryong
    • Journal of Multimedia Information System
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    • v.1 no.2
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    • pp.101-110
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    • 2014
  • The purpose of this research is to extend Ad-hoc network system lifetime with the proposed routing protocol which has considered hop lifetimes of the nodes while guaranteeing QoS in the establishment process of Ad-hoc network communication paths. Based on another power aware routing system that proposed in the advanced research [1], we are proposing an alternative power aware routing system in which nodes' hop lifetimes are compared in order to extend the lifetime of an Ad-hoc network system and delay factors have been considered for the assurance of QoS. The research of the routing protocol in this paper, which aims to maximize the system survival time considering power consumption status during the path searching in MANET and pursues the mechanism that controls hop delays for the same reason, can be applied to the study of WSN. The study concerning such phenomena is essential so that the proposed protocol has been simulated and verified with NS-2 in Linux system focusing on the lifetimes of the hops of the nodes. Commercialization of smart devices and arrival of the ubiquitous age has brought about the world where all the people and things are connected with networks. Since the proposed power aware method and the hop delay control mechanism used to find the adequate communication paths in MANET which mainly uses batteries or in WSN, they can largely contribute to the lifetime extension of the network system by reducing power consumptions when utilized for the communications attempts among soldiers during military operation, disaster areas, temporary events or exhibitions, mobile phone shadow areas, home networks, in-between vehicle communications and sense networks, etc. This paper presents the definitions and some advantages regarding the proposed outing protocol that sustain and extend the lifetime of the networks.

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Implementation of Leakage Monitoring System Using ZigBee (ZigBee를 적용한 누전상태 모니터링시스템 구현)

  • Ju, Jae-han;Na, Seung-kwon
    • Journal of Advanced Navigation Technology
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    • v.21 no.1
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    • pp.107-112
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    • 2017
  • In recent years, electric shock accidents due to electric leakage currents of household appliances such as computers, TVs, refrigerators, and LED lights are continuously occurring in homes and industrial buildings. And it is not easy to check the leakage current of each household appliances connected in parallel at the rear end of the module. In addition, the leakage current flowing through the path of the normal current other than the existing current leakage circuit breakers are installed in the distribution box, only the function to cut off the power when the leakage. Therefore, there are various disasters such as electric shock and fire caused by short circuit of household appliances, and the risk of such leakage current is seriously presented. In this paper, we propose a method to implement a leakage monitoring system that can be monitored at all times using Zigbee communication based on IEEE 80215.4, which has advantages in low power and low cost among short range wireless communication systems.

A Study on the Internet Domain's Name Dispute Sdution Methods at EC times (EC시대(時代) 인터넷 도메인명(名) 분쟁(紛爭) 해결(解決) 방안(方案)에 관한 연구(硏究))

  • Park, Jong Sam;Park, Young Tae
    • Journal of Arbitration Studies
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    • v.9 no.1
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    • pp.291-322
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    • 1999
  • The world of today faces a radical change, a new revolution, by the spread of the Internet. It is used not only for advertising but also for the exclusive rights in the field of information and communication, in add to the way of developing everyday our lives with world news, home-shopping, on-line education and so on. Actually, since the Internet Domain's Name(IDN) is unique over the world, the individual and the companies which provide information through the Internet have a keen competition to make a good IDN to memorize and organize all available information provided them. As a result, there are an increasing number of the cases where one company files suit against another for the validity of it's IDN so the policy to arbitrate and solute the cases is required. This paper is going to introduce the structure and the system of management for IDN. It will also discuss the efficient management of IDN, various case analysis of the dispute restraint and solutions, and the movement of improving the management procedure of IDN in WIPO. So we suggest to examine common disputes among IDN uses and solution methods for future problem at EC times. Therefore we have to establish the dispute solution system. Here are the two methods : one is that to establish a dispute solution organization. This organization which can conduct the new dispute solution procedure differs from the existing legislation system. The other is that to establish a dispute solution procedure i.e. the various dispute solution procedure for efficient dispute solution : council, inspection, mediation and arbitration. This procedure is conducted on-line due to features of the IDN disputes, also along with the current legislation system and the International dispute solution procedure. Because there is possibility the IDN disputes usually are connected with other countries. As there is no specific disputes solution procedure so far, we have to wait while development occurs that also striving to be coherent with and between the domestic and International solution procedure by helping to establish the International dispute solution procedure.

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The Effect of Communication between Parents and Adolescents, Goal Orientation on Academic Self-Efficacy among High School Students (고등학생의 부모-자녀간 의사소통, 목표지향성이 학업적 자기효능감에 미치는 영향)

  • Choi, Jung-Won;Choi, Youn-Shil;Suh, Shin-Hwha
    • Journal of Families and Better Life
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    • v.28 no.3
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    • pp.97-112
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    • 2010
  • This study is designed to find out the effect of communication between parents and adolescents, and their goal orientation on academic self-efficacy, especially among second-year high school students based on all their family and social environments. For such purposes, a variety of data regarding background variables, communication between parents and adolescents, goal orientation, and academic self-efficacy were collected in Seoul and Goyang-si, Gyunggi-do. The major results of this study are as follows: First, the female high-school students showed a higher efficiency than the male ones when it comes to the communication between parents and adolescents. For the goal orientation, the girl students marked higher levels than the male counterparts; speaking of self-regulated efficiency, the former illustrated a much higher level than the latter as well. Second, academic self-efficacy is greatly influenced by goal orientation. The higher mastery and performance-approach goals are, the higher academic self-efficacy is. It has turned out that mastery goals have significant relationship with task difficulty performance, one of the sub-scales of academic self-efficacy. In addition, performance-approach goals proved to be deeply connected with self-regulated efficiency, but performance-avoidance goals were negative predictors of task difficulty performance and self-regulated efficiency. In turn, academic confidence, one of the sub-scales of academic self-efficacy, is believed to be under the influence of mastery goals and communication between fathers and adolescents.

A Philological Study on Hushoujing(狐首經) ("호수경(狐首經)"의 문헌적 연구)

  • Chang, Sung-Kyu;Kim, Hye-Jung
    • Journal of architectural history
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    • v.19 no.1
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    • pp.51-70
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    • 2010
  • Hushoujing(狐首經) is Fengshui documents traditionally known to be written by Baihe(白鶴) of Han(漢) dynasty, which is hardly known in Korea. Baihe, the author, like Qingwuzi(靑烏子) has no evident personal background in history. There is a copy known to be written by Baihe of Han dynasty included in Dilitongyiquanshu(地理統一全書), which was published in 1628. The editor is known as Yuxiangtou(余象斗) from Fujiansheng(福建省) Jianyangxian(建陽縣) the same home town as Zhuxi(朱熹)'s. In contents and system, Hushoujing has the deep(profound) relationships between Qingwujing(靑烏經) and Zangshu(葬書), which attracts attention nowadays. Studying the relationships between Qingwujing, Zangshu and Hushoujing is the realm which requires systematic approach. Another reason for Hushoujing's attraction in Fengshui research lies in the contents related with Liqilun(理氣論). Mentioning Xingqilun(形氣論), Hushoujing also includes the explanation of Chinese compass needle, Deshui(得水) and Pokou(破口), and it is directly connected with the main theme of Liqilun. Hushoujing reveals a view point that both Xingqi(形氣) and Liqi(理氣) are important. Accordingly this means that we can understand Liqilun more clearly through studying Hushoujing. It is clearly recorded in the documents of Song(宋) dynasty that there was odd notes documents of Hushoujing as well as mentioning it. Therefore it is very likely that Hushoujing had been written before Song dynasty. Being contained in Huxianshengyinyangbeiyong(胡先生陰陽備用), Dilicanzanxuanjixianp oji(地理參贊玄機仙婆集), Dilitongyiquanshu, Lidaidilizhengyimishuershisizhong(歷代地理正義秘書二十四種), Xingjiaershizhong(形家二十種), 5 kinds of Hushoujing's copies are descended. The contents of Hushoujing are also introduced in documents of sejong period in The Annals of the Choson Dynasty. This means that Hushoujing is the geographical books prevailed representatively in early years of Choson Dynasty and studying Hushoujing is indispensible to studying Fengshui history or Chinese compass(羅盤) as well as deep understanding of Fengshui theory.

Design and Implementation of Mobile Survey System (모바일 서베이 시스템의 설계 및 구현)

  • Choi, Won-San;Koo, Yong-Wan
    • The KIPS Transactions:PartD
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    • v.10D no.2
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    • pp.317-326
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    • 2003
  • The possession rate of residential telephones tend to decrease as mobile phones are widely spread. There is also a decrease in the access rate of the qualified respondents due to the low rate of phone book registration and that of house owner's presence at home. Such a change in telephone survey environment calls for another survey-channel which makes good use of new telecommunication services. In this paper, a mobile survey system was designed and performed by the use of SMS (Short Message Service) which is a kind of mobile data communication service. The system draws the sample by using random digit sampling based on 'quota allocation', and sends the SMS to the sample according to the arranged scheduler. Then, the survey-panel which received the SMS connects to the responding server by pressing the 'send' button (which is connected by the callback number), responding to the question. As a result, the responding value is stored in the database and is analyzed in real-time. This system is distinguished from other research methodologies for its simplicity in data collection, its inexpensive research price, and the innovatively low research time.

Implementation of ELB Leakage Current Control System based on ZigBee Communication (ZigBee통신 기반 ELB 누전전류 제어시스템 구현)

  • Ju, Jae-Han
    • 전자공학회논문지 IE
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    • v.49 no.2
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    • pp.52-57
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    • 2012
  • Social development as well as the development of consumer electronic devices due to leakage, electric shock or fire, and many are exposed to the risk of leakage currents. Premises in the control cabinet, but the circuit breaker is installed, the existing circuit breaker shuts off when a short circuit in the control cabinet, installed only have the capability. Also connected to the outlet is installed byeokmada family of devices is not easy thing to check individually. In this paper, circuit breakers and circuit analysis and circuit performance, ZigBee-based premises of consumer electronics devices using sensors to monitor the health of the leakage can be presented on how. Performance analysis, the proposed ELB leakage current control system is built into the appliance leakage circuit breaker for each household appliances because the application can check the status of a short circuit, short circuit, over the existing system can be monitored easily.

The Impact of the Bunko Movement on School Library in Japan (일본의 학교도서관 발전에 미치는 문고운동의 영향)

  • Kwon Eun-Kyung
    • Journal of the Korean Society for Library and Information Science
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    • v.39 no.1
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    • pp.105-126
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    • 2005
  • This paper investigates the Bunko, the center of Japanese children's reading movement, and its impact on the development of Japanese school library. Paper is consisted by two parts , one subject is the programs and the law made by government which is related to either the school library or children's reading, the other is Bunko movements initiated by citizen mostly mothers who wish to improve their children's reading environment. The Bunko movements started in 1960's and motivate the establishment of public libraries in 1970's, and it has triggered activating the school library after early 1990's. By analyzing the relationships of the two subjects it can be concluded that they are tightly connected each other by emphasizing the function of school library not as a teaching-learning center but as a reading facility. It makes difficult for the Japanese school library to establish the most important function of supporting curriculum.

A Research on Personalized Mobile Advertising Service using the Linkage between Digital Signage and Smartphones (디지털 사이니지와 스마트폰의 연동을 통한 개인 맞춤형 모바일 광고 서비스 연구)

  • Ro, Kwanghyun;Hwang, Hoyoung;Kim, Seungcheon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.14 no.1
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    • pp.139-146
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    • 2014
  • This paper proposes a new personalized mobile advertising service using a smartphone connected with a digital signage which is increasingly common for out-of-home advertising. The advertising contents can be transferred with their metadata to a digital signage. Then, the signage delivers only metadata to smartphones in close proximity of it. Based on the user's preference, an application on a smartphone stores advertising metadata and publishes a personalized advertising e-catalog automatically. A smartphone user can browse, edit and share it with friends. In the view of extension of the reach of the advertising contents of various N-Screen devices including a digital signage and a smart TV to a smartphone and supplying personalized advertising data, this advertising model will be very beneficial and commercialized in the near future.

A Case Study on the Local-based Welfare Facilities of Urban Renaissance Agency in Japan by Business Entry System for Stable Living (일본 UR도시기구의 안심주공간사업자참여제도를 통한 지역복지거점시설 정비사례 연구)

  • Yoo, Soon-Seon
    • Journal of the Korean housing association
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    • v.24 no.5
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    • pp.9-16
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    • 2013
  • The purpose of this study is to analyze local-based social welfare facilities to respond to secular change of the UR rental housing estates in Japan. The selected case studies for the analysis are Hibarigaoka, Hamakousien, Turumai UR rental housing estates constructed around 1960's. The analysis was done through UR website, MLIT (Ministry of Land, Infrastructure, Transport and Tourism) and MHLW (Ministry of Health, Labour and Welfare) policy report, and related literature. These case studies are connected with housing policy as well as welfare policy and performed to Stable Living Creation Project by Business Entry System for Stable Living. The types of local-based social welfare facilities are classified by welfare corporation and medical corporation. The results are as follows: 1) The implementation of cooperative and participative system not only the private sector (welfare and medical Corporation, etc.) but also the public (MLIT, MHLW, UR Renaissance Agency, Local government, etc.). 2) Repurposed of land through rent and transfer of land for local-based social welfare facilities in the process of housing stock renewal utilization. 3) The pursue of regional revitalization through attached to multi-generation facility or local community space for elderly in local-based social welfare facilities.