Results 61 to 70 of about 3,066,308 (139)

Variation of Tower Footing Resistance on the Lightning Surge Propagation through Overhead Power Distribution Lines

open access: yesAdvances in Electrical and Computer Engineering, 2016
This paper deals with the analysis of the effects of electromagnetic transients generated by lightning on power distribution lines, considering the influence of tower footing resistance variation. Both types of lightning stroke, direct and induced, are
MARIUT, E. L., HELEREA, E.
doaj   +1 more source

Seakeeping analysis of two ships advancing parallel for underway replenishment

open access: yesZhongguo Jianchuan Yanjiu, 2017
Due to the wave and hydrodynamic interaction between two ships advancing parallel on the ocean, their six-degrees-of-freedom motions are much more complex during replenishment. The seakeeping performance of two vessels is analyzed with AQWA. On the basis
ZHENG Pingyu   +3 more
doaj   +1 more source

Vibration Control of an Unbalanced Single-Side Cantilevered Rotor System with a Novel Integral Squeeze Film Bearing Damper

open access: yesApplied Sciences, 2019
In this paper, vibration control of an unbalanced single-side cantilevered rotor system using a novel integral squeeze film bearing damper in terms of stability, energy distribution, and vibration control is analyzed.
Yipeng Zhang   +4 more
doaj   +1 more source

Time-Domain Analysis of Resonator Array Buffers [PDF]

open access: yesIEEE Photonics Technology Letters, 2009
We present design and time-domain simulations of microresonator array optical delay lines. The proposed buffer consists of an n times m microresonator array unidirectionally coupled via a straight bus waveguide. We show that the use of a two-dimensional arrangement of resonators can compensate for the high order of dispersion and more specifically the ...
openaire   +1 more source

Control of Virtual Synchronous Generator for Frequency Regulation Using a Coordinated Self-adaptive Method

open access: yesCSEE Journal of Power and Energy Systems
Power inverter adopting virtual synchronous generator (VSG) control can provide inertia support for distributed generation systems. However, it cannot take into account the dynamic regulation characteristics of frequency. Thus, when the system encounters
Hongwei Fang, Zhiwei Yu
doaj   +1 more source

Reduced order feedback control equations for linear time and frequency domain analysis [PDF]

open access: yes
An algorithm was developed which can be used to obtain the equations. In a more general context, the algorithm computes a real nonsingular similarity transformation matrix which reduces a real nonsymmetric matrix to block diagonal form, each block of ...
Frisch, H. P.
core   +1 more source

On the Choice of the Lightning Channel Current Decay Constant in the Modified Transmission Line Model with Exponential Decay

open access: yesJournal of Communications Software and Systems, 2009
For different values of the decay constant in the Modified Transmission Line Model with Exponential Decay (MTLE) and for dierent channel heights the results for lightningelectromagnetic field (LEMF) at dierent distances fromthe channel-base are presented
V. Javor, P. D. Rančić
doaj  

Direct use of linear time-domain aerodynamics in aeroservoelastic analysis: Aerodynamic model [PDF]

open access: yes
The work presented here is the first part of a continuing effort to expand existing capabilities in aeroelasticity by developing the methodology which is necessary to utilize unsteady time-domain aerodynamics directly in aeroservoelastic design and ...
Gilbert, Michael G., Woods, J. A.
core   +1 more source

Analysis of a space--time hybridizable discontinuous Galerkin method for the advection--diffusion problem on time-dependent domains

open access: yes, 2018
This paper presents the first analysis of a space--time hybridizable discontinuous Galerkin method for the advection--diffusion problem on time-dependent domains.
Cesmelioglu, Aycil   +3 more
core  

Rational Bubbles in Stock Prices? [PDF]

open access: yes
This paper reports empirical tests for the existence of rational bubbles in stock prices. The analysis focuses on a familiar model that defines market fundamentals to be the expected present value of dividends, discounted at a constantrate, and defines a
Behzad T. Diba, Herschel I. Grossman
core  

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