Search results for "FLEX"
showing 10 items of 1677 documents
Robust Energy Scheduling in Vehicle-to-Grid Networks
2017
The uncertainties brought by intermittent renewable generation and uncoordinated charging behaviors of EVs pose great challenges to the reliable operation of power systems, which motivates us to explore the integration of robust optimization with energy scheduling in V2G networks. In this article, we first introduce V2G robust energy scheduling problems and review the stateof- the art contributions from the perspectives of renewable energy integration, ancillary service provision, and proactive demand-side participation in the electricity market. Second, for each category of V2G applications, the corresponding problem formulations, robust solution concepts, and design approaches are describ…
Elevation Cable Modeling for Interactive Simulation of Cranes
2008
In this paper, the way to simulate hoisting cables in real time is addressed. We overcome instability in such simulation by considering a two-layered model: a model for the dynamics of a cable passing through a set of pulleys and an oscillation model based on the classical one-dimensional wave equation. The first layer considers the interaction between the cable and pulleys with the elevation equipment, while the second layer simulates cable oscillation. Numerical instability is avoided by suspending the oscillation layer when required. Due to the system properties, this can be carried out in such a way that does not cause significant loss in the system quality. It considers the oscillation…
Convivere con le emergenze. Design e nuovi scenari domestici
2023
The contribution leads a reflection around the physical-relational processes that have always characterized the domestic interior and that the recent state of health emergency Covid-19 (and the even more recent Russian-Ukrainian war conflict) has catalysed and accentuated, if not exasperated, offering new complex and sometimes contradictory visions. The contribution points to focus on new meanings and new projections, in terms of interactions and relationships, assumed by the consolidated physical-cultural criteria of proximity/remoteness, familiarity/foreignness, inside/outside. Within these profound transformations, an opportunity and a new role are looming for the disciplines of design. …
Deformation of flexible ferromagnetic filaments under a rotating magnetic field
2020
This repository contains experimental data and images related to the publication: A. Zaben, G. Kitenbergs, A. Cēbers (2020) Deformation of flexible ferromagnetic filaments under a rotating magnetic field. Journal of Magnetism and Magnetic Materials, 499, 166233 https://doi.org/10.1016/j.jmmm.2019.166233 / https://arxiv.org/abs/1908.02604. Excel files are results named corresponding to figure number in the publication. Root file '1' is for experimental images used for Fig.3, 4 and 5; where either the length is constant having file names as the value of the field strength or named with length values with fixed field strength for different frequencies. The images are named as …
3D motion of flexible ferromagnetic filaments under rotating magnetic field
2020
This repository contains experimental data and numerical results related to the publication: A. Zaben, G. Kitenbergs, A. Cēbers (2020), 3D motion of flexible ferromagnetic filaments under rotating magnetic field. Soft Matter, https://doi.org/10.1039/D0SM00403K / https://arxiv.org/abs/2003.03737. Figs_data.xlsx contains the data presented in the figures. Experimental_Data.rar contains experimental images used to obtain the results for Fig. 3 and 9. The files are named with the operating frequency, field strength and filament length. Numerical.rar contains numerical results used in Fig.6, 8 and 9. The files are named with Cm values. The results are in .dat files named with Cm values follo…
Wave Energy Assessment around the Aegadian Islands (Sicily)
2019
This paper presents the estimation of the wave energy potential around the Aegadian islands (Italy), carried out on the basis of high resolution wave hindcast. This reanalysis was developed employing Weather Research and Forecast (WRF) and WAVEWATCH III ® models for the modelling of the atmosphere and the waves, respectively. Wave climate has been determined using the above-mentioned 32-year dataset covering the years from 1979 to 2010. To improve the information about wave characteristics regarding spatial details, i.e., increasing wave model resolution, especially in the nearshore region around the islands, a SWAN (Simulating WAves Nearshore) wave propagation model was used. Results obtai…
Incentives in Corporate Governance: The Role of Self-Regulation
2004
Corporate governance stems from the interplay of legal norms, security regulation, self-regulation and best practices. Recent scandals and frauds have forced governments to update laws on corporate governance: the legislation process has been very fast in some countries, others have lagged. Law and regulation intervene and become effective only ex-post, when damages have been done and malpractice is self-evident. On the contrary, self-regulation is a quicker and more flexible response to changing market conditions and of great impact on the relationship between firms and their environment. A self-regulatory organization (SRO) such as the stock exchange could administer the screening device,…
A stochastic approach for self-healing capability evaluation in active islanded AC/DC hybrid microgrids
2023
This paper aims to implement a resilience assessment in AC/DC hybrid microgrids using a stochastic simulation approach. Self-healing measures including load shedding, control of distributed generation and flexible devices, like Energy Storage Systems (ESS) and Electrical Vehicles (EVs), are simulated to enable AC/DC hybrid microgrids to supply critical loads in islanded mode, assuming a disconnection of these microgrids from the main AC grid due to a fault. To perform this analysis, a two-stage process is proposed: first, a Monte-Carlo simulation-based stochastic approach is adopted to generate samples to simulate intermittent loads, power generation from Renewable Energy Sources (RESs), an…
Dupuytren contracture in diabetic hand
2011
Dupuytren's disease (DD) is a fibroproliferative disorder of unknown origin causing palmar nodules and flexion contracture of the digits. About 5% of individuals with DD are diabetic, with an increased prevalence that is proportional to the duration of the diabetes. The association with diabetes mellitus is well recorded, with a reported prevalence of between 3% and 32%. This review considers the evidence behind the association between DD and diabetes mellitus, considering the pathogenesis, clinical manifestations and therapies that can be found in the literature.
A dissipated energy comparison to evaluate fatigue resistance using 2PB
2012
Flexural fatigue due to repeated traffic loading is a process of cumulative damage and one of the main failure modes of flexible pavement structures. Typically, micro-cracks originate at the bottom of an asphalt concrete layer due to horizontal tensile strains. Micro-cracking starts to propagate towards the upper layers under repeated loading which can lead to pavement failure. Different approaches are usually used to characterise fatigue resistance in asphalt mixtures including the phenomenological approach, the fracture mechanics approach and the dissipated energy approach. This paper presents a comparison of fatigue resistance calculated for different dissipated energy models using 2 Poi…