• Title/Summary/Keyword: Sensible Technology

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SATELLITE-DERIVED SENSIBLE HEAT FLUX OVER THE OCEAN

  • .Kubota Masahisa;Ohnishi Keisuke;Iwasaki Shinsuke;Tomita Hiroyuki
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.30-33
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    • 2005
  • Though sensible heat flux is one of heat flux components, it is generally considered that the importance is low compared with other components because of the small value. Actually sensible heat flux over the tropical ocean is extremely small, less than $100\;W/m^2$ .. However, it should be noted that sensible heat flux in boreal winter over the western boundary current regions is considerably large, about $100\;W/m^2$, and not neglected. In this study we carry out intercomparison of various global sensible heat flux data including not only satellite-derived data but also reanalysis data in order to clarify the characteristics of those data.

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A Study on the Potential of Utilizing Sensible Media for Dance in 5G Network

  • Chang, So-jung
    • International Journal of Advanced Culture Technology
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    • v.7 no.3
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    • pp.111-115
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    • 2019
  • A 5G is 20 times faster than 4G. It also has hyper-connectivity, low latency merit and boundless potentials for medical education, transportation, entertainment and so on. In accordance with this, it is time to quickly look over on the utilization plan for 5G and sensible media in dance field, deal with the issue and its utilization. First of all, this study will review potential of 5G and sensible media in dance and its development plan. It seems like dance is able to communicate in a three-dimensional way. Utilizing sensible media can contribute to inform people of dance, and increase fun and interest which will make three-dimensional mutual communication. Also, in 5G environment, one can select whatever one wants in his or her viewpoint when utilizing sensible media such as VR, AR, hologram and so on. Supposing in a case of dancers and judges, it is possible for them to hire their own style of dancers in their countries. So, both the dancer and the judges have the positive merits. Third, streaming is possible without any installation, buffering is reduced. At the same time high-definition of media is allowed. This allowed collaborated performance of celebrities in dance and it also increased concentration and engagement. Dance field should acknowledge 5G sensible media, look for systemic and detailed method and disseminate and spread professional training and performance. In dance, testing fast developing sensible media due to 5G network, produce systemic dance training environment with various try is required and an effort for the performance situations in which advanced 5G sensible media is used.

Characteristics of Sensible Heat and Latent Heat Fluxes over the East Sea Related with Yeongdong Heavy Snowfall Events (영동대설 사례와 관련된 동해상의 현열속과 잠열속 분포 특성)

  • Kim, Ji-Eon;Kwon, Tae-Yong;Lee, Bang-Yong
    • Ocean and Polar Research
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    • v.27 no.3
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    • pp.237-250
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    • 2005
  • To investigate the air mass modification related with Yeongdong Heavy snowfall events, we examined sensible and latent heat fluxes on the East Sea, the energy exchange between atmosphere and ocean in this study. Sensible and latent heats were calculated by a bulk aerodynamic method, in which NCEP/NCAR reanalysis data and NOAA/AVHRR weekly SST data with high resolution were used. Among winter precipitation events in the Yeongdong region, 19 heavy precipitation events $(1995{\sim}2001)$ were selected and classified into three types (mountain, cold-coastal, and warm types). Mountain-type precipitation shows highly positive anomalies of sensible and latent heats over the southwestern part of the East Set When separating them into the two components due to variability of wind and temperature/ specific Humidity, it is shown that the wind components are dominant. Cold-coastal-type precipitation also shows strong positive anomalies of sensible and latent heats over the northern part and over the central-northern part of the East Sea, respectively. It is shown that the sensible heat anomalies are caused mostly by the decrease of surface air temperature. So it can be explained that cold-coastal-type precipitation is closely related with the air mass modification due to cold air advection over warm ocean surface. But in warm-type precipitation, negative anomalies are found in the sensible and latent heat distributions. From this result, it may be postulated that warm-type precipitation is affected by the internal process of the atmosphere rather than the atmosphere-ocean interaction.

Development of High Sensible Fabrics Using Worsted Yarn Drawing Technology (소모사 연신기술 이용 고감성 직물소재 개발)

  • Kim, Seung-Jin
    • Science of Emotion and Sensibility
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    • v.10 no.4
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    • pp.623-629
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    • 2007
  • Recently, the $"Optim"^{(R)}$ which is the wool fibre with high lustre developed by CSIRO in Australia is imported and commercialized as a high sensible fabrics for garment. But the price of this $"Optim"^{(R)}$ fibre is very high so material demand and supply is not smooth. This study is aiming to develop the drawing technology of the worsted yarn with washable function, lustre and low production cost. For this purpose, drawing yarns are made using developed drawing machine and high sensible fabrics are woven using this yarns, and various physical properties of the fabric specimen are measured and analysed with garment characteristics such as sewability and formability. The final objective of this study is seemed to be achieved by making the high sensible fabrics using drawing worsted yarns with high lustre such as $"Optim"^{(R)}$ fibre.

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Surface Flux Measurements at King Sejong Station in West Antarctica: I. Turbulent Characteristics and Sensible Beat Flux (남극 세종기지에서의 지표 플럭스 관측: I. 난류 특성과 현열 플럭스)

  • Choi, Tae-Jin;Lee, Bang-Yong;Lee, Hee-Choon;Shim, Jae-Seol
    • Ocean and Polar Research
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    • v.26 no.3
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    • pp.453-463
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    • 2004
  • The Antarctic Peninsula is important in terms of global warming research due to pronounced increase of air temperature over the last century. The first eddy covariance system was established at King Sejong Station located in the northern region of the Antarctic Peninsula in December of 2002 and has been operated over one year. Here, we analyze turbulent characteristics to determine quality control criteria for turbulent sensible heat flux data as well as to diagnose the possibility of long term eddy covariance measurement under extreme weather conditions of the Antarctic Peninsula. We also report the preliminary result on sensible heat flux. Based on the analyses on turbulent characteristics such as integral turbulence characteristics of vertical velocity (w) and heat (T), stationarity test and investigation of correlation coefficient, they fallow the Monin-Obukhov similarity and eddy covariance flux data were reliable. ${\sim}47%$ of total retrieved sensible heat flux data could be used for further analysis. Daytime averaged sensible heat flux showed a pronounced seasonal variation, with a maximum of up to $300Wm^{-2}$ in summer. In conclusion, continuous and long-term eddy covariance measurement may be possible at the study site and the land surface may influence the atmosphere significantly through heat transport in summer.

A Study on the Performance for the Cylindrical Packed Bed Sensible Heat Storage Unit (충진층 현열 축열조의 성태해소에 관한 연구)

  • Kwon, Sun-Seok;Kim, Si-Beom;Gu, Bon-Yeong
    • Journal of Ocean Engineering and Technology
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    • v.4 no.2
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    • pp.85-93
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    • 1990
  • A numerical study on the cylindrical packed bed sensible heat storage unit was accomplished by finite difference method. Relation between the heat storage rate and the mechanical pumping energy and the characteristics of the heat storage were investigated for various in let velocities and porosities. In this study, the numerical results are as follows: 1) The temperature distributions of solid and fluid rapidly reached the steady state as the heat capacity ratio was increased. 2) The efficiency of the heat storage was increased as the heat capacity ratio was decreased. For constant heat capacity ratio, however, the efficiency of the heat storage was increased at lower porosity. 3) It is very profitable to design the heat storage system such that the porosity is larger for the large flow rate and samller for small flow rate.

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A Study on the Performance for the Cylindrical Packed Bed Sensible Heat Storage Unit (충진층 현열 축열조의 성태해소에 관한 연구)

  • Kwon, Sun-Seok;Kim, Si-Beom;Gu, Bon-Yeong
    • Journal of Ocean Engineering and Technology
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    • v.4 no.2
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    • pp.235-235
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    • 1990
  • A numerical study on the cylindrical packed bed sensible heat storage unit was accomplished by finite difference method. Relation between the heat storage rate and the mechanical pumping energy and the characteristics of the heat storage were investigated for various in let velocities and porosities. In this study, the numerical results are as follows: 1) The temperature distributions of solid and fluid rapidly reached the steady state as the heat capacity ratio was increased. 2) The efficiency of the heat storage was increased as the heat capacity ratio was decreased. For constant heat capacity ratio, however, the efficiency of the heat storage was increased at lower porosity. 3) It is very profitable to design the heat storage system such that the porosity is larger for the large flow rate and samller for small flow rate.

Restoration of Tactility of Architectural Glass: Perceptual & Sensible Tactility - Focused on the Analysis of Laminata Glass House -

  • Kim, Sung-Wook;Kim, Do-Sik
    • Architectural research
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    • v.12 no.2
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    • pp.23-30
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    • 2010
  • The study of the expression of architectural glass has recently expanded due to various factors such as the development of architectural technology, the reinforcement of environmental standards, an increased interest in energy saving, and the commercialism of the exterior of buildings. The background for restoring the tactile capability of the sense of sight has been prepared by agitating oculocentricism pertaining to the Renaissance era. The restoration of tactility can be considered in two ways. One is the tactility 'perceived' through complex experiences and the other is the tactility 'sensed' from the challenges on the materiality of the glass itself. Perceptual tactility is achieved from compound visual experiences and connecting these complex experiences in the brain. Sensible tactility, in contrast to perceptual tactility, is a more direct tactility which works within the nervous system, bypassing the brain. This is attained by reversion of the materiality, tectonics and connection method of the glass. Among rare examples, Laminata House built in Leerdam, Netherlands is a fine example of direct and sensible tactility. In this paper, the process of restoring tactility in architecture is studied at each stage based on the restoration of tactility in painterly aesthetics.

Effects of Individual Components on the System Performance in a Desiccant Cooling System (제습냉방시스템에서 요소성능이 시스템성능에 미치는 영향)

  • Chang, Young-Soo;Lee, Dae-Young
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.19 no.10
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    • pp.687-694
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    • 2007
  • Cycle simulation is peformed for two types of the desiccant cooling system incorporating a regenerative evaporative cooler. The cooling capacity and COP are evaluated at various effectiveness values of the regenerative evaporative cooler, the desiccant rotor and the sensible heat exchanger. As either of the effectiveness of the regenerative evaporative cooler or the humidity effectiveness of the desiccant rotor increases, both the cooling capacity and COP increase, but the enthalpy leak ratio gives the opposite effect on the system performance. It is found that COP of cycle A mainly depends on the humidity effectiveness of the desiccant rotor, while for cycle B enthalpy leak ratio of desiccant rotor has the major impact on COP. The effect of the sensible heat exchanger on the cooling capacity is small about 1/10 compared with those of other components.