• Title/Summary/Keyword: Extensibility

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A Geographical Study on the Behavior Changes of Telemedicine Participants in Terms of Time and Space (시공간 관점에서 본 원격진료 이용자 행태 변화에 관한 연구)

  • Park, Sookyung;Hanashima, Yuki
    • Journal of the Economic Geographical Society of Korea
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    • v.16 no.2
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    • pp.198-217
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    • 2013
  • This research aims to examine the behavior changes of telemedicine participants with regard to time-space reconfiguration and to address the implications of telemedicine in terms of extensibility and restrictions (ambilaterality). According to the results of this research, telemedicine can lead to behavior changes in telemedicine participants, particularly patients. However, it is difficult to anticipate the time-space reconfiguration of telemedicine participants drastically. In other words, although telemedicine minimizes patients' burden of accessibility to and utilization of medical institutions, it requires the patients to visit medical institutions at least once due to the restricted application of telemedicine related to technological problems, the characteristics of medical practice and mutual stakes among the medical institutions involved in telemedicine. And physicians (telemedicine providers as mediators between medical specialists and patients) and medical specialists (as the ultimate telemedicine providers) do not evidence considerable changes in their behaviors, except for offline meetings for information sharing and medical training. Because the present telemedicine system does not require simultaneity between physicians, patients and medical specialists. Furthermore, present telemedicine operation is absorbed into existing medical activities as a health care delivery method. These phenomena are due to 1) the interests among medical institutions and the limitation or generalization of telemedicine technologies to stimulate regional-based telemedicine operation and 2) the goal of face-to-face interactions between patients and doctors, which is to avoid misdiagnosis and side effects. Finally, medical activities related to telemedicine do not differ from general medical activities. The ambilaterality of telemedicine in terms of extensibility and the restriction of time-space reconfiguration is an unsettled problem in the ICT technologies of medical services.

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Postmortem Biochemical and Physical Changes in the Red Musculature of Korean Native Beef Cattle Stored at $15^{\circ}C$ (사후 저장온도 $15^{\circ}C$에서 한우적색근육의 생화학, 물리적 변화에 관한 연구)

  • Kim, Cheon-Jei;Choi, Do-Young;Shin, Heuyn-Kil;Lee, Moo-Ha;Lee, Jae-Jun;Chung, Kyu-Song;Ko, Won-Sik
    • Korean Journal of Food Science and Technology
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    • v.25 no.1
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    • pp.57-62
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    • 1993
  • The influence of the storage temperature at $15^{\circ}C$ on the biochemical and structural changes in the red muscles (M. sternomandibularis) of korean native cattle postmortem were studied. The results obtained were summarized as follows; 1.5 to 2 hours postmortem the pH-value had dropped to $6.7{\sim}6.8$, after 18 or 20 hours at $15^{\circ}C$ it had reached its final pH-value (5.5). The irreversible loss of extensibility, i.e. the onset of rigor mortis, arose at $15^{\circ}C$ between 9 and 10 hours postmortem at pH 6.1 to 6.0 and R-value between 1.05/1.10. The complete loss of extensibility postmortem was reached after 18 to 20 hours at pH 5.5/5.6. Muscle and sarcomere length of korean native cattle were contracted about 20% and 15%, respectively at $15^{\circ}C$. Meat of korean native cattle had the highest shear force (4.7 kg) on 1 day after slaughter. The tenderness was increased with the ripening period prolonged and was highest at the end of the 9 day ripening period.

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A Study of Trans-media in Fantasy Genre - Focusing on the Game of Thrones - (판타지 장르의 트랜스미디어 연구 -왕좌의 게임(Game of Thrones)을 중심으로-)

  • Jang, Dong-Gon;Kang, Ji-Young
    • Cartoon and Animation Studies
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    • s.48
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    • pp.173-197
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    • 2017
  • The purpose of this study is to investigate the extensibility of transmedia contents of fantasy genre, and then to examine the characteristics of trans-media contents and analyze how the contents of fantasy genre have become trans-media. The definition and characteristics of the trans-media are distinguished from the existing theories such as One Source Multi Use (OSMU) and Crossmedia. At the same time, this study analyzes the extensibility of the trans-media contents applied to the fantasy genre and it compares with other medias such as novels, videos, games, etc. This shows that the game of the throne was more like to the second order adaptation through video adaptations that succeeded in success compared to the original novels that in expanding into trans-media compared with existing fantasy genre contents represented by the Lord of the Ring. The difference is that although the game of the throne is a fantasy genre content, it does not inherit the existing database genre elements, and it has been found that it has a different aspect from the existing customary form from the role of the character to the whole narrative. The analyzes presented in this study are equally valid for single content, not just for transmedia specific elements.

Direct numerical simulations of viscoelastic turbulent channel flows at high drag reduction

  • Housiadas Kostas D.;Beris Antony N.
    • Korea-Australia Rheology Journal
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    • v.17 no.3
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    • pp.131-140
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    • 2005
  • In this work we show the results of our most recent Direct Numerical Simulations (DNS) of turbulent viscoelastic channel flow using spectral spatial approximations and a stabilizing artificial diffusion in the viscoelastic constitutive model. The Finite-Elasticity Non-Linear Elastic Dumbbell model with the Peterlin approximation (FENE-P) is used to represent the effect of polymer molecules in solution, The corresponding rheological parameters are chosen so that to get closer to the conditions corresponding to maximum drag reduction: A high extensibility parameter (60) and a moderate solvent viscosity ratio (0.8) are used with two different friction Weissenberg numbers (50 and 100). We then first find that the corresponding achieved drag reduction, in the range of friction Reynolds numbers used in this work (180-590), is insensitive to the Reynolds number (in accordance to previous work). The obtained drag reduction is at the level of $49\%\;and\;63\%$, for the friction Weissenberg numbers 50 and 100, respectively. The largest value is substantially higher than any of our previous simulations, performed at more moderate levels of viscoelasticity (i.e. higher viscosity ratio and smaller extensibility parameter values). Therefore, the maximum extensional viscosity exhibited by the modeled system and the friction Weissenberg number can still be considered as the dominant factors determining the levels of drag reduction. These can reach high values, even for of dilute polymer solution (the system modeled by the FENE-P model), provided the flow viscoelasticity is high, corresponding to a high polymer molecular weight (which translates to a high extensibility parameter) and a high friction Weissenberg number. Based on that and the changes observed in the turbulent structure and in the most prevalent statistics, as presented in this work, we can still rationalize for an increasing extensional resistance-based drag reduction mechanism as the most prevalent mechanism for drag reduction, the same one evidenced in our previous work: As the polymer elasticity increases, so does the resistance offered to extensional deformation. That, in turn, changes the structure of the most energy-containing turbulent eddies (they become wider, more well correlated, and weaker in intensity) so that they become less efficient in transferring momentum, thus leading to drag reduction. Such a continuum, rheology-based, mechanism has first been proposed in the early 70s independently by Metzner and Lamley and is to be contrasted against any molecularly based explanations.

Mechanical Properties of Steel Fiber Reinforced Polymer Concrete (강섬유 보강 폴리머 콘크리트의 역학적 특성)

  • 김기락;연규석;이윤수
    • Proceedings of the Korea Concrete Institute Conference
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    • 1998.10a
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    • pp.336-341
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    • 1998
  • Steel fiber reinforced concrete(SFRC) is a composite material possessing many physical and mechanical properties which are distinct from unreinforced concrete. The use of steel fiber reinforcement to improve the flexural and tensile strengths, extensibility and toughness of ordinary cement concrete is well known at present, but reinforcement of polymer concrete with steel fibers has been hardly reported untill now. The objective of this study was to improve the properties of the polymer concrete by addition of steel fibers. In this paper steel fiber reinforced polymer concrete is prepared with various steel fiber contents and aspect ratio($\ell$ /d), and their mechanical properties were investigated experimentally.

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A Design of Vertical Handoff Mechanism based USHA to Support Extensibility and Reliability (USHA 기반의 확장성과 신뢰성을 제공하는 수직 핸드오프 기법 설계)

  • 강정호;윤미연;전진영;신용태
    • Proceedings of the Korean Information Science Society Conference
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    • 2004.10c
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    • pp.58-60
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    • 2004
  • 차세대 네트워크의 출현으로 다양한 형태의 통신망 들 간의 융합이 중요해졌다. 무선 망의 경우 이질적인 망들 간의 통합 및 융합이 이루어지기 위해서는 끊김 없는 이동성 지원이 매우 중요하다. 끊김 없는 이동성 지원은 이질적인 무선망 간의 이동시에도 지속적으로 세션을 유지하는 기능을 말한다. 이러한 기능을 핸드오프 기법이라 하며 현재 다양한 연구가 진행 중이다. 본 논문에서는 현재 제안되어 있는 핸드오프 기법 중 USHA(Universal Seamless Handoff Architecture)를 기반으로 하여 적용하기 쉬우며 확장성과 신뢰성을 보장하는 핸드오프 모델을 제안한다.

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POSFORM-A CAE System for Analysis and Design of Forging Processes (POSFORM - 단조공정 해석 및 설계용 CAE 시스템)

  • 황상무;전만수;류성룡;문호근
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1994.10a
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    • pp.95-104
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    • 1994
  • A finite-element based forging simulator, POSFORM, for automatic computer simulation of two-dimensional and axisymmetric forging processes was introduced in this paper. POSFORM is characterized by solution accuracy, user-friendliness, applicability and extensibility. Basic principles and capabilities of the program were introduced. Several application examples found in cold or hot forging companies of automotive or mechanical parts were given.

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Development of the Patient Monitor Using Microprocessor (마이크로 프로세서에 의한 환자감시장치의 개발)

  • 김남현;유선국
    • Journal of Biomedical Engineering Research
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    • v.10 no.3
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    • pp.309-316
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    • 1989
  • In this paper, the patient monitor consisting of amplifier, scan converter, A/D converter, CRT amplifier, and micro-controller part was developed. This patient monitor measures the patient's 4 states in the hospital such as electro-cardiography, respiration, blood pressure, and temperature. The control and processing methods based on micro-processor employ the flexibility, extensibility and economy over other conventional system. The followings are incorporated in this system. First, record the heart rate trends for 1 and 4 hours respectively. Second, measures the respiration by impedance pneumography. Third, measures the blood pressure with auto-zero balance. Fourth, linesrize the temperatures by bridge method.

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Implementation of Middleware for Real-Time Distributed Control System of a Humanoid Robot Using CAN and TCP/IP (휴머노이드 로봇 ISHURO-II의 실시간 분산 제어를 위한 미들웨어 구현)

  • Choi, Woo-Chang;Kim, Jin-Geol
    • Proceedings of the KIEE Conference
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    • 2006.10c
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    • pp.175-177
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    • 2006
  • This paper deals with implementation of middleware using CAN(Controller Area Network) network and TCP/IP for real-time distributed control system of a humanoid robot. Existent system using CAN network is available. But, there is problems in extensibility and flexibility. In this raper, the new system using TCP/IP for solution and improvement of problems is proposed. The new system is applied to ISHURO-II, real-humanoid robot. The performance is verified through experiment.

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Application of Hybrid-type High-T_{c}$ Superconductor Journal Bearings to Flywheel Energy Storage Device (복합형 고온초전도 저어넬베어링의 플라이휠 에너지 저장장치 응용)

  • 이준성;성태현;한상철;한영희;정상진
    • Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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    • 1999.02a
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    • pp.121-124
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    • 1999
  • A horizontal axle-type superconductor flywheel energy storage system has many great features such as extensibility and stability compared to the traditional vertical axle-type flywheel systems. In this paper, a prototype flywheel device with a horizontal axle is presented briefly, and the hybrid construction as an essential supplement in superconductor journal bearing design against the levitation drift is proposed.

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