971 resultados para Energy budget (Geophysics)


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Shipping list number: 2011-0290-P (pt. 1), 2011-0295-P (pt. 2), 2011-0289-P (pt. 3), 2011-0325-P (pt. 4), 2012-0066-P (pt. 5), 2012-0308-P (pt. 6), 2012-0320-P (pt. 7), 2012-0014-P (pt. 8), 2011-0356-P (pt. 9).

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Item 1005-C

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Mode of access: Internet.

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Extensive numerical investigations are undertaken to analyze and compare, for the first time, the performance, techno-economy, and power consumption of three-level electrical Duobinary, optical Duobinary, and PAM-4 modulation formats as candidates for high-speed next-generation PONs supporting downstream 40 Gb/s per wavelength signal transmission over standard SMFs in C-band. Optimization of transceiver bandwidths are undertaken to show the feasibility of utilizing low-cost and band-limited components to support next-generation PON transmissions. The effect of electro-absorption modulator chirp is examined for electrical Duobinary and PAM-4. Electrical Duobinary and optical Duobinary are powerefficient schemes for smaller transmission distances of 10 km SMFs and optical Duobinary offers the best receiver sensitivity albeit with a relatively high transceiver cost. PAM-4 shows the best power budget and costefficiency for larger distances of around 20 km, although it consumes more power. Electrical Duobinary shows the best trade-off between performance, cost and power dissipation.

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Projects of Energy Community Interest” (PECIs) is a label attached to those projects which have the highest positive impact in the largest possible number of Contracting Parties. The assessment of one hundred projects submitted as candidates, and final selection of 35 PECIs was achieved in a collaborative process undertaken by the same Task Force that contributed to the preparation of the Energy Strategy. Chaired by the European Commission, the Task Force was facilitated by the Energy Community Secretariat and benefited from technical assistance of a Consultant sponsored from the Energy Community budget.

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The Revised Iowa Energy Conservation Plan: 1979-1980 is a blue print for the state's continued participation. The original Plan contained descriptions of more than 70 programs underway or conceived for state implementation with federal dollars. The Revised Plan contains only those programs to be funded in Federal dollars. The projects include five mandatory programs identified by DOE and several projects selected for funding by the Iowa Energy Policy Council (EPC), the policy making board which governs the state energy agency. The 18-member Council selected the conservation programs at its March 20-21, 1979 meeting. The Council retains the right to amend both the Plan and the budget at any time for the duration of the three-year program.

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Your energy connection is a South Carolina Energy Office publication on topics related to energy conservation and renewable energy in the state.

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Your energy connection is a South Carolina Energy Office publication on topics related to energy conservation and renewable energy in the state.

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Your energy connection is a South Carolina Energy Office publication on topics related to energy conservation and renewable energy in the state.

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18 months embargo on the thesis and check appendix for copy right materials

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OBJECTIVE: To compare, in patients with cancer and in healthy subjects, measured resting energy expenditure (REE) from traditional indirect calorimetry to a new portable device (MedGem) and predicted REE. DESIGN: Cross-sectional clinical validation study. SETTING: Private radiation oncology centre, Brisbane, Australia. SUBJECTS: Cancer patients (n = 18) and healthy subjects (n = 17) aged 37-86 y, with body mass indices ranging from 18 to 42 kg/m(2). INTERVENTIONS: Oxygen consumption (VO(2)) and REE were measured by VMax229 (VM) and MedGem (MG) indirect calorimeters in random order after a 12-h fast and 30-min rest. REE was also calculated from the MG without adjustment for nitrogen excretion (MGN) and estimated from Harris-Benedict prediction equations. Data were analysed using the Bland and Altman approach, based on a clinically acceptable difference between methods of 5%. RESULTS: The mean bias (MGN-VM) was 10% and limits of agreement were -42 to 21% for cancer patients; mean bias -5% with limits of -45 to 35% for healthy subjects. Less than half of the cancer patients (n = 7, 46.7%) and only a third (n = 5, 33.3%) of healthy subjects had measured REE by MGN within clinically acceptable limits of VM. Predicted REE showed a mean bias (HB-VM) of -5% for cancer patients and 4% for healthy subjects, with limits of agreement of -30 to 20% and -27 to 34%, respectively. CONCLUSIONS: Limits of agreement for the MG and Harris Benedict equations compared to traditional indirect calorimetry were similar but wide, indicating poor clinical accuracy for determining the REE of individual cancer patients and healthy subjects.