نتایج جستجو برای: harmonic contribution

تعداد نتایج: 264990  

Journal: :فیزیک زمین و فضا 0
a safari department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran m.a sharifi department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran h amin department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran i foroughi department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran

gravity acceleration data have grand pursuit for marine applications. due to environmental effects, marine gravity observations always hold a high noise level. in this paper, we propose an approach to produce marine gravity data using satellite altimetry, high-resolution geopotential models and harmonic splines. on the one hand, harmonic spline functions have great capability for local gravity ...

2016
Pär Bjälkebring Daniel Västfjäll Stephan Dickert Paul Slovic

Older adults have been shown to avoid negative and prefer positive information to a higher extent than younger adults. This positivity bias influences their information processing as well as decision-making. We investigate age-related positivity bias in charitable giving in two studies. In Study 1 we examine motivational factors in monetary donations, while Study 2 focuses on the emotional effe...

2018
A. S. Hussin M. H. Jopri

Received Jun 9, 2016 Revised Nov 20, 2016 Accepted Dec 11, 2016 This paper will review on the existing techniques and methodologies of harmonic load diagnostic system. The increasingly amount of harmonic producing load used in power system are the main contribution in quantifying each harmonic disturbance effects of the multiple harmonic producing loads and it became very important. Literature ...

2005
S Perera V J Gosbell B. Sneddon

Power system transmission and distribution utilities strive to ensure that the voltage harmonic distortion planning levels are maintained by limiting the harmonic currents injected by the loads. With large customers assessment of the harmonics contributed is carried out at the point of common coupling (PCC). Determination of the contribution to the overall harmonic distortion at the PCC by the ...

Journal: :The Journal of the Acoustical Society of America 1992
C J Darwin V Ciocca

Three experiments investigated how the onset asynchrony and ear of presentation of a single mistuned frequency component influence its contribution to the pitch of an otherwise harmonic complex tone. Subjects matched the pitch of the target complex by adjusting the pitch of a second similar but strictly periodic complex tone. When the mistuned component (the 4th harmonic of a 155 Hz fundamental...

Journal: :International Transactions on Electrical Energy Systems 2021

One of the greatest challenges found in power quality has been, and still is, establishing a reliable noninvasive method for quantifying harmonic contributions an electric utility consumer at point common coupling (PCC). This difficulty arises from fact that distortions measured on PCC are unidentifiable mixtures both parties. Currently, some work focused exploring use blind source separation (...

2008
Angelo Baggini Zbigniew Hanzelka

When the harmonic spectrum is known, or at least can be measured with a certain reliability or predicted, the additional losses can be easily calculated. The process of calculation should be made through the following steps: 1. Determination of all the components of additional losses due to the presence of harmonics. 2. Determination of the harmonic spectrum, either by measurement or by estimat...

1997
G. Varelogiannis

We make a harmonic analysis of the pairing and damping contribution of a finite k range isotropic electron-phonon (or other boson) scattering in an anisotropic two-dimensional electronic system. We show that the pairing contribution of the anisotropic part of the electronic system can be much larger than its damping contribution enhancing significantly Tc. The higher is the order of the harmoni...

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