Results 81 to 90 of about 1,138,201 (295)
Conservation Laws and Hamilton's Equations for Systems with Long-Range Interaction and Memory
, 2007 Using the fact that extremum of variation of generalized action can lead to the fractional dynamics in the case of systems with long-range interaction and long-term memory function, we consider two different applications of the action principle ...
Tarasov, Vasily E., Zaslavsky, George M.
core +3 more sources
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
New Power Sharing Control for Inverter-Dominated Microgrid Based on Impedance Match Concept
The Scientific World Journal, 2013 Power flow control is one of the most important issues for operating the inverter-dominated autonomous microgrid. A technical challenge is how to achieve the accurate active/reactive power sharing of inverters. P-F and Q-V droop control schemes have been
Herong Gu +4 more
doaj +1 more source
Risk and Simulation Evaluation of Large-Scale Centralized New Energy Sending System
发电技术, 2018 Large-scale centralized new energy sending system is a unique form of power grid in China. Due to the high proportion of new energy sources and low tolerance to high-voltage direct current(HVDC) fault disturbance, there are prominent problems in the ...
Shiying MA, Qing WANG
doaj +1 more source
Conserving a Place for Renewable Power [PDF]
SSRN Electronic Journal, 2013 28 pages ; Promoting renewable power and conserving land are often conflicting goals because renewable power requires a lot of land. The conflict is becoming an important issue on lands encumbered by conservation easements. I argue that the current legal rule allowing oil and gas development, but not wind and solar development, on conserved land does ...
openaire +1 more source
Advanced Engineering Materials, EarlyView.A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer +3 more
wiley +1 more source
A theoretical study of antennas in moving ionized media. Part I - The receiving area of a dipole antenna in a moving medium Final report, May 1966 - Jun. 1967 [PDF]
Minkowsky electrodynamic theory and power conservation law used to calculate receiving area of dipole antenna immersed in moving ionized ...
Lee, K. S. H.
core +1 more source
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Energies, 2018 Online assessment of transient stability of power systems is critical for avoiding blackout. The increasing installation of phasor measurement units in power systems and the advancement of the wide-area measurement systems make it possible to develop ...
Dan Huang +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source