982 resultados para DocuTek e-res system
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Signatur des Originals: S 36/F10705
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Signatur des Originals: S 36/F10773
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Signatur des Originals: S 36/F11539
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Signatur des Originals: S 36/F11540
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Signatur des Originals: S 36/F11973
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Signatur des Originals: S 36/G03021
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By incorporating recently available remote sensing data, we investigated the mass balance for all individual tributary glacial basins of the Lambert Glacier-Amery Ice Shelf system, East Antarctica. On the basis of the ice flow information derived from SAR interferometry and ICESat laser altimetry, we have determined the spatial configuration of eight tributary drainage basins of the Lambert-Amery glacial system. By combining the coherence information from SAR interferometry and the texture information from SAR and MODIS images, we have interpreted and refined the grounding line position. We calculated ice volume flux of each tributary glacial basin based on the ice velocity field derived from Radarsat three-pass interferometry together with ice thickness data interpolated from Australian and Russian airborne radio echo sounding (RES) surveys and inferred from ICESat laser altimetry data. Our analysis reveals that three tributary basins have a significant net positive imbalance, while five other subbasins are slightly positive or close to zero balance. Overall, in contrast to previous studies, we find that the grounded ice in Lambert Glacier-Amery Ice Shelf system has a positive mass imbalance of 22.9 ± 4.4 Gt/a. The net basal melting for the entire Amery Ice Shelf is estimated to be 27.0 ± 7.0 Gt/a. The melting rate decreases rapidly from the grounding zone to the ice shelf front. Significant basal refreezing is detected in the downstream section of the ice shelf. The mass balance estimates for both the grounded ice sheet and the ice shelf mass differ substantially from other recent estimates.
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An implementation of a real-time 3D videoconferencing system using the currently available technology is presented. This appr oach is based on the side by side spatial compression of the stereoscopic images . The encoder and the decoder have b een implemented in a standard personal computer and a conventional 3D comp atible TV has been used to present the frames. Moreover, the users without 3D technology can use the system because 2D compatibility mode has been implemented in the decoder. The performance res ults show that a conventional computer can be used for encod ing/decoding audio and video streams and the delay in the transmission is lower than 200 ms.
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Introduction. This Policy Brief follows-up on the DIA-CORE Policy Brief on “Assessing costs and benefits of deploying renewables”, dated 26 September 2014, which highlighted the complexities in making a comprehensive and appropriate assessment of costs and benefits resulting from an increased use of renewable energy sources (RES). It distinguished the different types of effects into system-related effects, distributional effects and macro-economic effects, and looked at the related data requirements, which need to be comprehensive and standardised. This DIA-CORE Policy Brief uses the tools proposed in the previous Policy Brief to estimate the effects on Member States of reaching the EU-wide RES target of 27% of the EU’s energy consumption by 2030. This allows to draw some conclusions on the differentiated impacts across Member States, and the potential implications for an effort sharing approach. It also assesses whether a higher ambition level could be beneficial. The paper also takes into account the implications of national policy frameworks and highlights the importance of reforms to reduce the costs of RES adoption.
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Described in Graesse, Tre̲sor de livres rares et pre̲cieux, t.2, p. 474-477, as being complete in "102 livraisons ou 337 parties, formant 166 vol. et demi de texte et 51 parties renfermant 6439 pl. in 4o."
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Submitted by Mr. George.
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Shipping list no.: 86-432-P (pt. 2).
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Future power systems are expected to integrate large-scale stochastic and intermittent generation and load due to reduced use of fossil fuel resources, including renewable energy sources (RES) and electric vehicles (EV). Inclusion of such resources poses challenges for the dynamic stability of synchronous transmission and distribution networks, not least in terms of generation where system inertia may not be wholly governed by large-scale generation but displaced by small-scale and localised generation. Energy storage systems (ESS) can limit the impact of dispersed and distributed generation by offering supporting reserve while accommodating large-scale EV connection; the latter (load) also participating in storage provision. In this paper, a local energy storage system (LESS) is proposed. The structure, requirement and optimal sizing of the LESS are discussed. Three operating modes are detailed, including: 1) storage pack management; 2) normal operation; and 3) contingency operation. The proposed LESS scheme is evaluated using simulation studies based on data obtained from the Northern Ireland regional and residential network.
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One of the main features of the Greek currency are the big differences between emissions of the polis, which did not match either in their iconographic message types, not even in the met-rical pattern of their values. These differences were reflected in exchange systems ruled by the main sanctuaries that shrines stipu-lated thus giving official status to change.