• Title/Summary/Keyword: Journal of Communication

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실내 가시광 통신 시스템에서 성능에 영향을 주는 요인에 관한 연구 (A Study About Fact Influence on Performance at Indoor Visible Light Communication)

  • 이창우;최덕재;김한필
    • 조명전기설비학회논문지
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    • 제27권10호
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    • pp.1-8
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    • 2013
  • Wireless Visible Light Communication is the technology that enables communication using LED illumination Infrastructure instead of existing illumination such as incandescent lamp or fluorescent light. Because VLC uses light for communication, it has no problem of frequency permission and is harmless to human body. It is also possible to check the communication through eye. So VLC can be used as a supplement to the Radio Frequency communication, Infrared in indoor environment. So far, researchers on the LED Visible light communication have focused on the increasing transmission speed, transmission distance, modulation method. However, there is few research of main factors that influence on system performance. System performance has been mainly predicted through simulation. In this paper, I recognized that these factors such as outside light noise, obstacle, LED panel position or emitted angle have a great impact on wireless communication system. So I experimented VLC system by changing distance and position to discover location suitable for BER regulation.

한국 대학생들의 세대 간 커뮤니케이션에 대한 인식 : 문화적 요인을 중심으로 (Korean University Students' Perception on Intergenerational Communication: Focusing on cultural factors)

  • 양정은
    • 한국콘텐츠학회논문지
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    • 제20권9호
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    • pp.86-98
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    • 2020
  • 이 연구의 목적은 한국인의 세대 간 커뮤니케이션에 영향을 미치는 문화적인 요인들을 살펴보는 것이다. 20대 대학생들을 대상으로 일반문화변수인 효 규범, 그리고 한국적 고유문화변수인 유교주의(장유유서)와 체면의식이 세대 간 커뮤니케이션 태도와 만족도에 미치는 영향을 검증하였다. 위계적 회귀분석 결과 일반문화변수 중 공경심은 세대 간 커뮤니케이션에 긍정적인 영향을, 경외심은 부정적인 영향을 미치는 것으로 나타났다. 고유문화변수 중 장유유서는 세대 간 커뮤니케이션에 긍정적 영향을, 체면은 부정적 영향을 미치고 있었다. 한국적 특징을 보여주는 고유문화변수는 전체 모델의 설명력을 유의미하게 변화시켜, 한국인들의 세대 간 커뮤니케이션을 설명할 수 있는 유용한 변수임이 입증되었다. 한편 여학생들보다 남학생들이 상대적으로 세대 간 커뮤니케이션에 대한 만족도가 큰 것으로 나타났다.

u-TSN에서 차량 통신시스템 구성 및 성능평가 (Vehicle Communication System Implementation for u-TSN and Its Performance Evaluations)

  • 전성희
    • 대한전자공학회논문지TC
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    • 제48권7호
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    • pp.35-40
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    • 2011
  • u-TSN 환경에서 차량 단말기와 도로변에 설치되는 노변장치와의 통신은 서비스의 신속한 지원과 도로 교통정보의 실시간 확보를 위하여 교통시스템 구성 시에 매우 중요하다. 본 연구에서는 차량 통신 시스템의 성능 평가를 위한 V2I 혹은 I2V 통신 서비스 시나리오와 신속성과 정확성이 요구되는 긴급정보 전송을 위한 V2V 차량 간 통신 서비스 시나리오를 제시하였다. 그리고 실제 차량간 통신시스템을 구현한 후 제안된 통신 서비스 시나리오에 맞춰 차량통신 실험을 실시하는 방법으로 성능을 평가하였다. 실험결과 최적의 전송 모드 설정 조건을 도출하였으며, 도출된 결과는 안정적이고 효율적인 u-TSN 차량 통신시스템 개발에 적용가능하다.

신규간호사를 위한 병원 의사소통 프로그램(병원적응 프로그램) 개발과 효과 검증 (A Study on the Development and Evaluation of Hospital Communication (Hospital Adaptation) Program for New Graduate Nurses)

  • 구미지;김경남
    • 보건의료산업학회지
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    • 제8권4호
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    • pp.1-12
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    • 2014
  • This study is designed to develop a hospital communication program and to verify its effectiveness in graduate nurses self-esteem, communication conflicts, turnover intention and early resignation rate. The study method is a randomized control group with a pre-post test design. In order to help new graduate nurses adapt to the hospital, eight week hospital communication program is developed. The study participants are 104 nurses(47 experiment, 57 control) who have been working for less than six months. The data on self-esteem, communication conflict, and turnover intention was collected one week before the program and four weeks after the program. Then, the early resignation rate of the participating nurses was surveyed one year after the start of employment. The nurses who participated in the hospital communication program exhibit higher self-esteem, fewer communication conflicts, and lower early resignation rates than those who did not. However, effect in the turnover intention is not observed. Overall, the hospital communication program will help new graduate nurses adapt to hospitals.

디지털시대의 농업기술센터의 커뮤니케이션 전략 (Communication Strategies for Agricultural Technology Center in the Digital Age)

  • 이채식;서규선
    • 농촌지도와개발
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    • 제7권2호
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    • pp.295-306
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    • 2000
  • The objectives of this paper were to review the difference between the analog and digital age, and to suggest new communication strategies for Agricultural Extension Service Centers in the digital age. Literature review and discussion on the information age and its supporting technologies, such as the Internet and other digital tools, has enabled communication to occur during time periods and in locations based upon individual needs. With increasing number of internet subscribers using email and the world wide web, the internet is now considered a new mass media for communication, and may soon consider such electronic connectivity as essential in agricultural extension services. Communication strategies in the future should recognize and adapt to the changing needs farmers and extension educators in the information age. Utilization of internet technology and digital tools in communication may attract and retain farmers and extension educators in the future, thus. some of new strategies for communication in agricultural extension services should include the following; 1) traditional linear model should be change into interactive model in communication. 2) Agricultural extension service should include creative role with diffusion process. 3) Agricultural extension service should establish new receiver paradigm and form new partnership with farmer.

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전력선 통신 기반 전관 방송시스템의 펌웨어와 UI (Firmware and UI for Power Line Communication Based Public Address System)

  • 김석;김대익
    • 한국전자통신학회논문지
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    • 제14권1호
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    • pp.127-136
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    • 2019
  • 전관방송 시스템은 위급상황 및 비상상황에서도 누구나 손쉬운 조작과 운영, 그리고 장비의 안정적 동작이 우선시되어야 한다. 본 논문에서는 전력선 통신 기반 전관방송 시스템 사용자에게 편리성과 효율성을 제공하기 위해, 전관방송 시스템의 PLC(Power Line Communication) 제어기와 UI(User Interface) 그리고 PLC 제어기와 PLC 스피커 간의 통신을 제어하기 위한 펌웨어를 구현하였고, 사용자가 컴퓨터 화면에서 손쉽게 사용할 수 있도록 UI 소프트웨어를 개발하였다.

국내 도서관에서의 자유이용(Open Access) 학술 커뮤니케이션 활성화 방안 (A Suggestion for the activation of Open Access Scholarly Communication in Domestic Libraries)

  • 황옥경
    • 정보관리학회지
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    • 제22권2호
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    • pp.253-273
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    • 2005
  • 기존의 저널 출판 기반 학술 커뮤니케이션과 관련하여 7가지 문제점을 제시하였고 새로운 학술 커뮤니케이션 동향으로 등장한 자유이용(open access) 학술 커뮤니케이션이 이에 대한 해결책이 될 수 있음을 제시하였다. 국내에서의 자유이용 현황 파악을 위해 자유이용 관련 저널과 아카이브를 조사하였고 자유이용을 위한 라이선스와 소프트웨어 개발 현황을 조사하였다. 그리고 국내에서의 자유이용 활성화를 위한 도서관의 기대 역할을 제안하였다.

부모-자녀 의사소통이 청소년의 자아개념, 문제행동에 미치는 영향 (The Effects of Parent-Adolescent Communication on Self-Concept and Problem Behavior)

  • 문영숙
    • Child Health Nursing Research
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    • 제14권4호
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    • pp.405-414
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    • 2008
  • Purpose: The purpose of this study was to examine the effect of parent- adolescent communication on self-concept and problem behavior of adolescents. Method: The participants in this study were 480 students from middle schools in Daejeon City. Data were collected from May 19 to 30, 2008 and analyzed using SPSS WIN 14.0 version. Result: The mean scores for communication with fathers and mothers were 2.98 and 3.35 respectively and for self-concept, 2.80. The highest reported percentage for problem behavior over the past year were going to the noraebang (Karoki) or videobang (PC Cafe) (78.6%). Significant differences were found for the influence of parent-adolescent communication on self-concept and problem behavior. Communication with fathers and with mothers was positive correlated (r=.365, p<.001). The difference in self-concept for communication with fathers was F=60.40, p<.001, and with mothers, F=51.74, p<.001 and for problem behavior, for communication with fathers, F=3.33, p<.05, and with mothers, F=10.05, p<.001. For self-concept and communication with fathers the correlation was r=.512, p<.001, with mothers, r=.453, p<.001 There was a negative correlation between self-concept and problem behavior(r=-.248, p<.001). Conclusion: This results suggest that practical parent-adolescent communication programs should be developed and applied to bolster communication of adolescents with their parents.

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원거리 무선 전력 하베스팅 테스트 시스템 개발 (Development of Far Field RF Power Harvesting Testbed)

  • 김민재;임원섭;배종석;박주현;박영준;이종민;트린반손;김동인;이강윤;황금철;양영구
    • 한국통신학회논문지
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    • 제40권10호
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    • pp.1922-1930
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    • 2015
  • 본고에서는 초고주파 대역에서의 무선 전력 포집 성능을 검증할 수 있는 테스트 시스템의 구성과 특성을 나타내었다. 개발된 무선 전력 포집 테스트 시스템은 900 MHz와 2.4 GHz 대역을 이용한 전력 전송과 데이터 통신 시스템뿐만이 아니라 2.4 GHz 대역에서의 전력 전송 및 데이터 통신 성능 평가가 가능하며, 효율적인 전력 포집 알고리즘 개발에 적합하도록 개발 되었다.

간호사의 조직 의사소통 만족과 환자안전에 대한 태도와의 관계 (Relationship Between Intra-Organizational Communication Satisfaction and Safety Attitude of Nurses)

  • 김경자;한정숙;서미숙;장봉희;박미미;함형미;유문숙
    • 간호행정학회지
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    • 제18권2호
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    • pp.213-221
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    • 2012
  • Purpose: Communication in hospitals is one of the major factors in patient safety. So, the purpose of this study was to identify the relationship between intra-organizational communication satisfaction and the safety attitude of nurses in hospitals. Method: A descriptive survey design with convenience sampling was used. Data collection was done using a self-report questionnaire answered by 278 nurses from one university hospital located in Kyeoung-gi Province, Korea. Result: Intra-organizational communication satisfaction positively correlated with safety attitude (r=.747, p<.01). Among the 6 sub dimensions of safety attitude, perceptions of management (r=.675, p<.01), job satisfaction (r=.640, p<.01) and teamwork climate (r=.600. p<.01) were strongly related to intra-organizational communication satisfaction. Multiple regression analysis was done to identify explanation power of intra-organizational communication satisfaction against safety attitude. The model was significant (F=48.540, p<.01). Intra-organizational communication satisfaction accounted for 60.9% of variance in safety attitude (Adj $R^2$=.609). Conclusions: The results of this study indicate that higher levels of intra-organizational communication satisfaction promote positive safety attitude in hospital nurses and that communication media quality is an important factor in patient safety attitude. Therefore, developing interventions to revitalize intra-organizational communication level based on communication media quality will help in the construction of positive safety attitude in nurses.