• Title/Summary/Keyword: Single media

Search Result 1,010, Processing Time 0.027 seconds

A Study on the Smart Home Life Style for Single households - Focusing on the 20s and 30s - (1인 가구를 위한 스마트 홈 라이프스타일 서비스 연구 -20·30세대를 중심으로-)

  • Lee, Ui-Jin;Kim, Seung-In
    • Journal of the Korea Convergence Society
    • /
    • v.8 no.8
    • /
    • pp.231-237
    • /
    • 2017
  • The purpose of this study is to investigate the need for smart home service based on the lifestyle of a rapidly growing single household. When we compare the need and the arbitrary service according to the pattern of the lifestyle of the consumer, we try to analyze whether there is an effect on the future use. In the questionnaire survey of 1 person, 8 questions were selected such as food, state, line, leisure, communication, consumption, mobile life, Single household characterization question should be added so that concrete measures can be presented to future services. Competitive smart home services will be presented by examining the lifestyle of the 20th and 30th generation of single households, It is intended to be used as basic data on the direction of development of smart home service of the rapidly increasing single person households, and it is aimed to be a direction of improvement and development direction of the existing plan.

Space Player for Playing Several Moving Pictures in Mobile Environments (모바일 환경에서 다수의 동영상을 재생하는 공간 재생기)

  • Cho, Jong-Keun
    • The Journal of the Korea Contents Association
    • /
    • v.8 no.10
    • /
    • pp.54-63
    • /
    • 2008
  • With the improvement of computer performance in Mobile Environments, the users demand for the multimedia player is getting higher, which will be the major force behind the wide distribution of the media player that allows several moving pictures to run simultaneously using multiple windows on the screen. Products that adopted the same method used for a single moving picture and yet support the several moving pictures simultaneously emerged; however, they are not immune from problems. In this paper, we propose method to solve the problems of blinking, play prioritization processor and semi-transparent processor that occur when appling several moving pictures to the method used for a single moving picture and suggested the possible solutions. Taking it one step further, it focused on design and implementation of the media player that allows several moving pictures using overlapping and overlay technique by recognizing the biggest problem, which is that the above media play is not supported when playing several moving pictures simultaneously.

Performance Analysis of Service Model between server and client on PMSS System (PMSS 시스템에서 서버/클라이언트 간 서비스 모델의 성능분석)

  • Lee, Min-Hong;Kim, Kyung-Hoon;Nam, Ji-Seung
    • The KIPS Transactions:PartA
    • /
    • v.11A no.3
    • /
    • pp.207-212
    • /
    • 2004
  • This paper provides the higher user QoS(Quality of Service) by analyzing media service model between server and client in single VoD(Video on Demand) environment and applying it to parallel VoD environment. Media service model is divided into the Client Pull, Server Push, and IPP(Interleaving Pull & Push) model. A server sends data based on client's request in the Client Pull Model. A server one-sidedly sends data without client's request in the Server Pull model. And the WP model unites above two models. For a parallel VoD environment, We built the PMSS system which provides the parallel media streaming services that one client is simultaneously served by several servers. In the single and parallel VoD environment, We compare and analyze the performance of service models with respect to network delay and data size in buffer. In this experiment, we found that IPP service model keeps the least network delay and stable client buffer in the parallel VoD environment. This result shows that PMSS can provide the more quality of service.

Design and Implementation of a Media Player That Playing Several Moving Pictures in Real Time (실시간에서 여러 개의 동영상을 재생하는 미디어 플레이어의 설계 및 구현)

  • 조종근;김상민;임영환
    • Journal of Korea Multimedia Society
    • /
    • v.6 no.6
    • /
    • pp.1015-1024
    • /
    • 2003
  • With the improvement of the computer performance, the users demand for the multimedia player is getting higher, which will be the major force behind the wide distribution of the media player that allows several moving pictures to run simultaneously using multiple windows on the screen. Products that adopted the same method used for a single moving picture and yet support the several moving pictures simultaneously emerged; however, they are not immune from problems. In this paper, we propose method to solve the problems of blinking, play prioritization processor and semi-transparent Processor that occur when appling several moving pictures to the method used for a single moving picture and suggested the possible solutions. Taking it one step further, it focused on design and implementation of the media player that allows several moving pictures using overlapping and overlay technique by recognizing the biggest problem, which is that the above media play is not supported when playing several moving pictures simultaneously.

  • PDF

The Optimal Composing the Filter-Bed for Coping with Daily Flow-Rate Fluctuation for the Performance of Sand Filtration Process (일유량 변동에 따른 여과수질 악화에 대처하기 위한 최적 여재구성에 관한 연구)

  • Park, Dong-Hak;Park, No-Suk;Kim, Seong-Su;Bae, Cheol-Ho;Jung, Nahm-Chung;Cjoi, Seung-II
    • Journal of Korean Society of Water and Wastewater
    • /
    • v.21 no.4
    • /
    • pp.485-491
    • /
    • 2007
  • The fluctuation of inlet flow to a water treatment plant makes a serious problem that it can change the filtration rate abruptly, and ultimately occur the breakthrough of the detained particles inside filter media. Also, since it takes very short time (about 10 minutes) for the surface wave occurred from the fluctuation of inlet flow to reach the filtration process, it is impossible to control the filtration rate stably. Therefore, this study was conducted to evaluate the effect of daily flow-rate fluctuation on the performance of sand filtration process, and to suggest the dual media composition for coping with that effect. Comparative column tests have been carried out for various dual media (sand and anthracite) compositions. From the results of column tests, dual media, especially in the case of sand 45cm/anthracite 30cm, is more effective to cope with the effect of flow-rate fluctuation on the performance of filtration than single media (only sand). In addition, irrespective of dual media composition, managing ability to cope with that fluctuation tends to be weak at the end of allowable filtration duration time,

Maximizing Secrecy Rate and Performance Analysis of Relay Selection for Cooperative Diversity Networks in Presence of an Eavesdropper (도청자가 존재하는 무선 협력 네트워크의 전달 단말 선택을 통한 보안 전송률 최대 전송기술 및 성능분석)

  • Ju, MinChul;Kwon, Tai-Gil;Cho, Jin-Woong
    • Journal of Korea Multimedia Society
    • /
    • v.18 no.4
    • /
    • pp.533-540
    • /
    • 2015
  • We study relay selection in decode-and-forward (DF)-based relay networks consisting of a source, a destination, an eavesdropper, and multiple relays, where each terminal has a single antenna and operates in a half-duplex mode. In these networks, it is desirable to protect the confidential message from the source to the destination against the eavesdropper with the help of a single selected relay. Specifically, we begin by investigating DF-based networks for the scenario instantaneous signal-to-noise ratios (SNRs) related to the eavesdropper are available. For the scenario, we propose relay selection to maximize the secrecy rate of DF-based networks with and without direct-paths, and we derive the exact secrecy outage probabilities in closed-form.

10-Gbit/s Wireless Communication System at 300 GHz

  • Chung, Tae Jin;Lee, Won-Hui
    • ETRI Journal
    • /
    • v.35 no.3
    • /
    • pp.386-396
    • /
    • 2013
  • A 10-Gbit/s wireless communication system operating at a carrier frequency of 300 GHz is presented. The modulation scheme is amplitude shift keying in incoherent mode with a high intermediate frequency (IF) of 30 GHz and a bandwidth of 20 GHz for transmitting a 10-Gbit/s baseband (BB) data signal. A single sideband transmission is implemented using a waveguide-tapered 270-GHz high-pass filter with a lower sideband rejection of around 60 dB. This paper presents an all-electronic design of a terahertz communication system, including the major modules of the BB and IF band as well as the RF modules. The wireless link shows that, aided by a clock and data recovery circuit, it can receive $2^7$-1 pseudorandom binary sequence data without error at up to 10 Gbit/s for over 1.2 m using collimating lenses, where the transmitted power is 10 ${\mu}W$.

The Thickness of a Sensitive Emulsion on the Double Layer Screen Plate (이중층 스크린 인쇄판에 도포된 감광유제의 두께)

  • Jung, Gi-Young;Kang, Young-Reep
    • Journal of the Korean Graphic Arts Communication Society
    • /
    • v.29 no.3
    • /
    • pp.125-132
    • /
    • 2011
  • Is very simple in tension work of screen mesh for effective printing if worker uses screen mesh of player who desire at screen print process. General method is methods that use mesh of player who want on screen frame as screen plate because tensioned. The single layer screen plate was made from one sheet screen mesh and the double layer screen plate was made from two sheets screen mesh overlapped. The thickness of sensitive emulsion applied to double layer screen plate is more thicker than two time s of thickness of emulsion applied to single layer screen plate. It seems that the sensitive emulsion inserted between an upper layer and a lower layer of double layer screen mesh.

The Screen Printing using Double Layer Screen Plate (이중층 스크린 인쇄판을 사용한 스크린 인쇄)

  • Kang, Young-Reep;Jung, Gi-Young
    • Journal of the Korean Graphic Arts Communication Society
    • /
    • v.28 no.2
    • /
    • pp.57-67
    • /
    • 2010
  • The double layer screen plate tensioned with two sheets screen mesh is more thicker than that of one screen sheet. The double layer screen plate piled up with two sheets screen 200# or overlapped with a sheet screen 110# and a sheet screen 305# is more thicker than single layer screen plate with one sheet screen 420#. As the screen plate composed of two sheets screen has more accumulated ink capacity than one sheet of screen, printing printed with it has a good plasticity. And the single layer screen plate that accumulate a small quantity of ink has an excellent representation than the double layer screen plate but lower plasticity.

Non-classical plate model for single-layered graphene sheet for axial buckling

  • Safaei, Babak;Khoda, Farzad Hamed;Fattahi, A.M.
    • Advances in nano research
    • /
    • v.7 no.4
    • /
    • pp.265-275
    • /
    • 2019
  • In this work, the effect of size on the axial buckling behavior of single-layered graphene sheets embedded in elastic media is studied. We incorporate Eringen's nonlocal elasticity equations into three plate theories of first order shear deformation theory, higher order shear deformation theory, and classical plate theory. The surrounding elastic media are simulated using Pasternak and Winkler foundation models and their differences are evaluated. The results obtained from different nonlocal plate theories include the values of Winkler and Pasternak modulus parameters, mode numbers, nonlocal parameter, and side lengths of square SLGSs. We show here that axial buckling behavior strongly depends on modulus and nonlocal parameters, which have different values for different mode numbers and side lengths. In addition, we show that in different nonlocal plate theories, nonlocality is more influential in first order shear deformation theory, especially in certain range of nonlocal parameters.