Results 11 to 20 of about 740,856 (310)
Symmetry reduction in group 4mm photonic crystals [PDF]
, 1997 The size of absolute band gaps in two-dimensional photonic crystals is often limited by band degeneracies at the lattice symmetry points. By reducing the lattice symmetry, these degeneracies can be lifted to increase the size of existing photonic band ...
Anderson, Cheryl M. +1 more
core +1 more source
The Journal of Engineering, 2019 Bird activities including the defecation, nesting, and flight are easy to cause electrical faults of overhead transmission lines, study on the prevention measures of bird damage to transmission lines is of great significance to ensure the stable and ...
Yanjun Kuang +4 more
doaj +1 more source
An extended winding function model for induction machine modelling considering saturation effect
IET Electric Power Applications, 2021 Winding function (WF) method is one of the electric machines modelling methods, which is used to simulate electric machines under different conditions.
Mehrdad Gholami +2 more
doaj +1 more source
Clinical and Dosimetric Implications of Air Gaps between Bolus and Skin Surface during Radiation Therapy [PDF]
, 2013 Purpose: The main objective of the study was to evaluate the effect of air gaps of 0 - 5.0 cm between bolus and skin for 1.0 cm Superflab bolus on surface dose (DSurf) and depth of maximum dose (dmax) in solid water and Rando® phantoms.
Abbasi, Ahmed N +6 more
core +2 more sources
Influence of the boundary conditions on the natural frequencies of a Francis turbine [PDF]
, 2016 Natural frequencies estimation of Francis turbines is of paramount importance in the stage of design in order to avoid vibration and resonance problems especially during transient events.
Bossio, Matias +5 more
core +1 more source
Tower Air-gaps discharge characteristics and insulation coordination for UHV AC double-circuit line
The Journal of Engineering, 2019 In order to give out inverse V-type insulator tower air-gaps configuration of double-circuit UHV AC power transmission line, different distance air-gaps from high-voltage electrode to tower frame discharge tests of inverse V-string are carried out ...
Huo Feng, Nan Jing, Ye Qiming, Ma Yeming
doaj +1 more source
High Voltage, 2018 Slot discharge studies are very important from the insulation diagnosis perspective. Further in practice, testing of rotating machines with power frequency requires sources which are quite bulky and costly.
Ramesh P. Nair +3 more
doaj +1 more source
Design route towards a PM machine for rotorcraft environments
The Journal of Engineering, 2019 This paper discusses the design route followed in the development of a permanent magnet (PM) machine for electrical power generation on board a rotorcraft (helicopter).
Dominic North +4 more
doaj +1 more source
IET Electric Power Applications, 2021 Aiming at the complexity of end structures in the end region of large synchronous machines, it is difficult to obtain an analytical method for the end leakage magnetic field.
Erhang Zhu +4 more
doaj +1 more source
Investigation of triple quadrature pad for wireless power transfer system of electric vehicles
IET Electrical Systems in Transportation, 2021 Inductive Power Transfer (IPT) system is an appealing approach among researchers as well as industrial manufacturers of electric vehicle (EV) charging systems.
Bita Esmaeili Jamakani +3 more
doaj +1 more source