Results 1 - 10 of 1965
Results 1 - 10 of 1965. Search took: 0.031 seconds
|Sort by: date | relevance|
[en] This report provides an assessment of the current status of the modelling and simulation capability for the Nuclear-Renewable Hybrid Energy System (N-R HES). The current capabilities are separated in: • Creation of the system boundary condition. More in detail this refer to the capability to create either demand, renewable supply, price profiles etc.. • Creation of a numerical representation of the physical model of a N-R HES system • Derivation, from the actual performance of the physical system, the cash flow to perform the economical assessment • Optimization of N-R HES configuration and dispatch Those capabilities are the ones which enable the workflow summarize in Figure 1below.
[en] Completion of the 45-T Hybrid Magnet System for the National High Magnetic Field Laboratory (NHMFL) at Tallahassee, Florida will mark significant advancements in the technologies for both resistive and superconducting magnets. The project, now in the manufacturing phase, is a collaboration with Francis Bitter National Magnet Laboratory (FBNML), who have responsibility for the Resistive Insert Magnet and the NbTi portion of the Superconducting Outsert Magnet. US industry has also contributed heavily in all phases. The components of several critical subsystems have already been delivered and work has begun on their assembly and test. This paper reviews unique features of the magnet system, the progress to date, and the schedule to the end of the project
[en] Current Focus of EMWG: 1. Study of issues/challenges of integration of new nuclear with renewable resources; 2. Position paper based on literature review; 3. Scope of study: - Flexibility requirement for advanced reactors; - Impact of grid management (interconnections, storage, demand-side management), co-generation, hybrid systems etc.; - Impact of policies (value of reliability/resiliency).
[en] In the recent years, significant progress on diagnostics, equilibrium reconstruction and current-drive systems have allowed to achieve some degree of current-profile control in tokamak experiments. This led to promising prospects for attractive reactor concepts based on the so-called advanced scenarios. Nevertheless, stability analyses for such scenarios have been presently restricted to ballooning, kink and interchange modes. Given the experience of conventional scenarios, where the long-pulse limit is set by finite-β tearing modes significantly below the Troyon limit, it appears interesting to consider this point. This problem is briefly discussed in the present paper, in the context of the lower-hybrid-enhanced discharges of Tore Supra. (orig.)
[en] A novel approach is reported for imaging and quantifying both the depth and the strength of the optical near-field, of a single colloidal metal nanoparticle, associated with localized surface plasmons. It will be emphasized that this technique relies on a nanoscale molecular molding of the confined electromagnetic field of metal colloids, irradiated at their resonance, by a photo-activated polymer, which enabled us to directly image the dipolar profile of the near-field distribution with an unprecedented resolution, better than 10 nm. Moreover, the approach used enabled one to quantify the near-field enhancement factor. This approach has overcome all the difficulties faced by scanning probe methodologies to reproduce the form of the near-field of the localized surface plasmons and provides a new way to quantify its magnitude. Furthermore, this approach leads to the production of polymer/metal hybrid nano-systems of new optical properties. (author)
[en] We calculate the magnitude of cross phase modulation (XPM) induced by classical channels, and analyze its impact on quantum secure key rate. The results show that the XPM induced by classical signals is small and its impact on the quantum key distribution can be neglected
[en] The focus of this paper is on examination of hybrid systems and hybrid technology in order to take full advantage of both thermal and electrical energy as well as membrane processes. This article is based and updated from Awerbuch hybrid chapter contribution to book by M. Wilf 'The Guidebook to Membrane Desalination Technology'. Two comprehensive studies were carried out on hybrid desalination systems by Daniel Hoffman and Amnon Zfati and by Sherman May, and full review by Awerbuch
[en] The PV/TEG hybrid system, consisting of the photovoltaic cells and thermoelectric element, is presented in the paper. The dependence of the PV/TEG hybrid system parameters on the illumination levels and the temperature is analysed. The maxim power values of the photovoltaic cell, of the thermoelectric element and of the PV/TEG system are calculated and a comparison between them is presented and analysed. An economic analysis is also presented. (paper)