Results 11 to 20 of about 37,696,825 (250)

A Fast and Accurate Calculation Method of Line Breaking Power Flow Based on Taylor Expansion

open access: yesFrontiers in Energy Research, 2022
In order to quickly obtain the voltage value of each node after the power system line is disconnected, a fast and accurate calculation method of breaking voltage based on Taylor series expansion is proposed in this study, which can calculate the value of
Shuaihu Li   +4 more
semanticscholar   +1 more source

Vertical Loading Rate Is Not Associated with Running Injury, Regardless of Calculation Method

open access: yesMedicine & Science in Sports & Exercise, 2022
Introduction Loading rate (LR), the slope of the vertical ground reaction force (vGRF), is commonly used to assess running-related injury risk. However, the relationship between LR and running-related injuries, including bone stress injuries (BSI), is ...
Elizabeth A. Schmida   +4 more
semanticscholar   +1 more source

Equivalent model of multi-type distributed generators under faults with fast-iterative calculation method based on improved PSO algorithm

open access: yesProtection and Control of Modern Power Systems, 2021
There are various types of distributed generators (DGs) with different grid integration strategies. The transient characteristics of the fault currents provided by the DGs are different to those of conventional synchronous generators.
Puyu Wang   +7 more
semanticscholar   +1 more source

An integrated multi-energy flow calculation method for electricity-gas-thermal integrated energy systems

open access: yes, 2021
The modeling and multi-energy flow calculation of an integrated energy system (IES) are the bases of its operation and planning. This paper establishes the models of various energy sub-systems and the coupling equipment for an electricity-gas-thermal IES,
Mengting Zhu   +4 more
semanticscholar   +1 more source

Research on power flow calculation method of true bipolar VSC-HVDC grids with different operation modes and control strategies

open access: yesInternational Journal of Electrical Power & Energy Systems, 2021
Compared with the pseudo bipolar Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) (VSC-HVDC) grid, the true bipolar VSC-HVDC grid with series voltage source converters is more flexible and reliable.
Botong Li   +4 more
semanticscholar   +1 more source

On Calculation of Amplitudes in Quantum Electrodynamics [PDF]

open access: yes, 2012
A new method of calculation of amplitudes of different processes in quantum electrodynamics is proposed. The method does not use the Feynman technique of trace of product of matrices calculation.
K. S. Karplyuk   +2 more
core   +3 more sources

A Generic Method for the Reliable Calculation of Large- Scale Fading in an Obstacle-Dense Propagation Environment [PDF]

open access: yes, 2013
The aim of this chapter is to summarize and present recent findings in the field of wireless channel mod- eling that provide a new method for the reliable calculation of the statistical parameters of large-scale variations of the average received ...
Babulak, E.   +2 more
core   +1 more source

Calculation of acoustic parameters by a filter-correlation method [PDF]

open access: yes, 1993
This paper presents the filter correlation method, a technique for extracting consistent and accurate estimates of attenuation parameters from acoustic waveform data.
Courtney, Robert C., Mayer, Larry A.
core   +2 more sources

Carbon Emission Calculation Method and Low-Carbon Technology for Use in Expressway Construction

open access: yesSustainability, 2020
There is a need for a quantitative calculation method for carbon emissions during asphalt pavement construction. In this study, the carbon sources were detected and carbon emission during pavement construction was divided into two parts—the emission ...
B. Peng   +4 more
semanticscholar   +1 more source

Ratios of $B$ and $D$ Meson Decay Constants in Improved Mock Meson Model [PDF]

open access: yes, 1995
We calculate the ratio $f_{B_s}/f_{B_d}$ by following the Oakes' method which is based on chiral symmetry breaking, but we improve his calculation by performing the calculation of the factor $$/$$ in the mock meson model.
Abada   +20 more
core   +3 more sources

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