• Title/Summary/Keyword: readers

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Fractional-N Frequency Synthesizer for Mobile RFID (모바일 RFID 응용을 위한 Fractional-N 주파수합성기)

  • Kim, Kyung-Hwan;Ko, Seung-O;Park, Jong-Tae;Yu, Chong-Gun
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.441-442
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    • 2008
  • In this paper a Fractional-N frequency synthesizer is designed for UHF RFID readers. It satisfies the ISO/IEC frequency band $(860{\sim}960MHz)$ and is also applicable to mobile RFID readers. It is designed using a $0.18{\mu}$ RF CMOS process. The measured results show that the designed circuit has a phase noise of -103dBc/Hz at 100kHz offset and consumes 9mA from a 1.8V supply. The channel switching time of $10{\mu}s$ over 5MHz transition have been achieved, and the chip size including PADs is $1.8{\times}0.99mm^2$

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Paralinguistic Communication of the Image on Cartoon and Comics (만화에서 이미지가 주는 언어적 커뮤니케이션)

  • Lee, Won-Seok
    • The Journal of the Korea Contents Association
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    • v.11 no.1
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    • pp.83-91
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    • 2011
  • The attribute of cartoon and comics has been known the combination of image and text. It is improved the we find the shape of comics at the first comics on the newspaper. But we can read the comic without word. These works don't give the difficult to read and it may transfer to readers by the image of figure on comics. Therefore how can the image reach the readers by the communication. This study is the research of the visual image communication and the attribute of wordless comics.

Design of a Frequency Synthesizer for UHF RFID Reader Application (UHF 대역 RFID 리더 응용을 위한 주파수합성기 설계)

  • Kim, Kyung-Hwan;Oh, Kun-Chang;Park, Jong-Tae;Yu, Chong-Gun
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.5
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    • pp.889-895
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    • 2008
  • In this paper a Fractional-N frequency synthesizer is designed for UHF RFID readers. It satisfies the ISO/IEC frequency band($860{\sim}960MHz$) and is also applicable to mobile RFID readers. A VCO is designed to operate at 1.8GHz band such that the LO pulling effect is minimized. The 900MHz differential I/Q LO signals are obtained by dividing the differential signal from an integrated 1.8GHz VCO. It is designed using a $0.18{\mu}m$ RF CMOS process. The measured results show that the designed circuit has a phase noise of -103dBc/Hz at 100KHz offset and consumes 9mA from a 1.8V supply. The channel switching time of $10{\mu}s$ over 5MHz transition have been achieved, and the chip size including PADs is $1.8{\times}0.99mm^2$.

A Case Study on the Dual Readership Represented in the Use of Picture Books by Families of 5-year-olds (유아용 그림책의 이용에 나타난 이중독자구조의 탐색 : 만 5세 유아 가정에 대한 사례연구)

  • Choi, Na-Ya
    • Journal of Families and Better Life
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    • v.29 no.3
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    • pp.99-118
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    • 2011
  • The purpose of this study was to investigate the dual readership represented in the use of picture books. The study was conducted through in-depth interviews and observation of 9 families including 5-year-olds. The findings of this study were as follows. First, mothers exercised their exclusive right to choose books for their children. They usually used online bookstores, libraries, or book rental shops by consulting other mothers or merchandisers. On the other hand, fathers and children seldom involved themselves in the selection of picture books. Second, children preferred interesting books, while mothers favored complete series of books, which were usually for educational purposes. Third, dynamic interaction between mother and child was occurred during their daily routine of reading picture books together. Five-year-olds seemed to be transitioning into independent readers, and mothers showed that they were also readers of picture books when they appreciated and enjoyed them.

Enhanced Pulse Protocol RFID Reader Anti-collision Algorithm using Slot Occupied Probability in Dense Reader Environment

  • Song, In-Chan;Fan, Xiao;Chang, Kyung-Hi
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.2 no.6
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    • pp.299-311
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    • 2008
  • The Radio Frequency IDentification (RFID) system is a contactless automatic identification system, which comprises readers and tags. In RFID systems, a reader collision occurs when there is interference in communication between one reader and the tags, due to the signals from other readers. The reader collision problem is considered as the fundamental problem affecting high density RFID reader installations. In this paper, we analyze the existing reader anti-collision algorithms. We also propose a pulse protocol-based reader anti-collision algorithm using slot occupied probability (SOP). The implementation of this improvement is simple, yet it effectively mitigates most reader collisions in dense reader mode, as shown in our simulation. That is, the proposed algorithm reduces the identification time, and increasesthe system throughput and system efficiency compared with the conventional reader anti-collision algorithms.

A Study on the Current Status and Librarian Perception of Readers' Advisory in Korean University Libraries: A focus on Leisure Reading

  • Jeong, Dae-Keun
    • International Journal of Knowledge Content Development & Technology
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    • v.10 no.4
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    • pp.83-101
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    • 2020
  • This study attempted to establish the role of university libraries for leisure reading by identifying the current status of university libraries about leisure reading, which is a part of the reading support service and by investigating and analyzing the university library librarian's percep tion of the necessity of leisure reading. To this end, a survey was conducte d on university libraries. As a result of the survey, 78% of university libraries were conducting leisure reading, and 72% of them provided separate space. Separate manpower was provided only in 30% of libraries, and book lists were provided mainly by best sellers. Regarding the need for leisure reading (4.28) and the role of university libraries (4.32), librarians responded that it was a necessary service for university libraries, and university library librarians that currently provide spaces and program s were more aware of the need.

The Facts That We Have Been Mistaken About Our Minds, Language, and Octopuses; "Other Minds: The Octopus, The Sea, and The Deep Origins of Consciousness"

  • Son, Jung-Woo
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.32 no.4
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    • pp.170-172
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    • 2021
  • To date, we have made inferences on the behavior and mind of humans and animals from the perspective of humans, or for the sake of familiarity, vertebrates. The book, "Other Minds; The Octopus, The Sea, and The Deep Origins of Consciousness" by Peter Godfrey-Smith makes us realize how erroneous preconceived notions could be, and presents a novel perspective on the results of evolution. Throughout this book, readers will learn about the characteristics of the nervous system, behavior, and habits of cephalopods, which include octopuses. Through this book, readers will gain a new perspective on the embodiment, minds, nervous systems, consciousness, and sociality of humans and animals. Furthermore, the book will provide the imaginary experience of swimming in "Octopolis" inside the ocean with the author.

A MONITORING METHOD OF PROJECT PROGRESS WITH RFID TECHNOLOGY

  • Soungho Chae ; Naruo Kano
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.491-496
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    • 2005
  • In this paper, the authors explained the overview of a method for detecting location of worker for development of a monitoring system for project progress management using RFID technology. Data is the RSSI (Receive Signal Strength Indication) from RFID tag attached to the worker installing a rolling shutter, and was obtained from antennas and RFID readers set around the construction site. Neural network was done using RSSI collected and the area where worker is performing a task, and an estimation model of the working area was prepared. The network had a range of the percentage of correctly classified from 62% to 92%. The authors suggested the method to make estimate by using integrated networks prepared in respect of RFID readers, and showed the percentage of correctly classified of 84.3%. According to the result, the authors confirmed the possibility of the monitoring system with RFID technology, and mentioned the factors necessary to develop for further practical use.

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Análisis Pragmático y Lingüístico de los Comentarios en la Prensa Digital

  • Choi, Hong-Joo
    • Iberoamérica
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    • v.16 no.2
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    • pp.151-188
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    • 2014
  • This work aims to describe pragmatic strategies and linguistic features of replies that occur in the comment section of online newspapers. The dominant media in this digital age is the Internet and its rapid development and expansion of use have contributed not only to the change of the form of production of journalistic texts, but also to the consumption of those texts. In the past, the news was transmitted in a unidirectional way but now readers of online newspapers do not remain passively reading the articles. They actively participate in the exchange of opinions with other readers. The individual consumption of journalistic texts has become a collective and social act. The purpose of the study is to investigate the communication intention of the users of comment sections and analyze the linguistic formulation of replies. We attempt to discover specific aspects of replies and responses for online newspaper articles, considering them as an independent type of Computer Mediated Communication (Internet Mediated Communication). Observing language attitudes appearing in the electronic environment and discovering the characteristics of the Spanish language on the Internet will allow us to contribute to understand the theoretical aspects related to the CMO better.

Mind and Attitude for Self-Development and Growth: Exploring the Protagonist's Unconscious and Unethical Attitude in Oscar Wilde's "The Picture of Dorian Gray"

  • Wooyoung Kim
    • International Journal of Advanced Culture Technology
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    • v.12 no.1
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    • pp.85-93
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    • 2024
  • In this paper, focusing on Oscar Wilde's novel "The Picture of Dorian Gray," we explore the protagonist's lack of conscience and unethical attitude, emphasizing its relevance to our self-development and growth. The primary goal is to interpret the impact of Dorian Gray's actions and choices on personal development and growth, highlighting the importance of a specific mindset and attitude to the reader. It dissects how Wilde navigates the intricate layers of Dorian's character, exposing the ethical dilemmas and transformative moments that contribute to the profound changes within him. The examination sheds light on the depth and complexity of Dorian Gray's character, offering readers a nuanced understanding of the forces at play in his moral and psychological journey. Interpretation of Wilde's intent to impart lessons on the reader's personal growth and development through Dorian's story is undertaken. The discussion also explores the impact of Dorian's unethical attitude on contemporary readers and its influence on our daily lives and values.