Results 41 to 50 of about 247,502 (280)

The stieltjes transform of distributions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1979
In the present work, two complex inversion formulas of Byrne and Love for generalized Stieltjes transformation are shown to be valid for a class of distributions. This is accomplished by transfering the complex inversion formulas on the testing function space of a class of distributions and then showing that the limiting process in the resulting ...
U. N. Tiwari, J. N. Pandey
openaire   +3 more sources

Experimental validation of using frequency response analysis method in measuring interwinding capacitance of power transformers

open access: yesEngineering Reports, 2019
The interwinding capacitance of transformers describes the diagnostic status of winding‐insulation and its geometry. Naturally, there is a constant drive in improvising the existing methods and to attain accurate information while measuring interwinding ...
Saravanakumar Arumugam
doaj   +1 more source

Introducing small storage capacity at residential PV installations to prevent overvoltages [PDF]

open access: yes, 2011
Low voltage distribution feeders are designed for unidirectional energy supply from transformer to consumer. However, the implementation of small-scale PV production units on local utilities may result in bidirectional energy flows.
Cappelle, Jan   +6 more
core   +1 more source

An Optimal Phase Arrangement of Distribution Transformers under Risk Assessment

open access: yesEnergies, 2020
This paper presents a phase arrangement procedure for distribution transformers to improve system unbalance and voltage profile of distribution systems, while considering the location and uncertainties of the wind turbine (WT) and photovoltaics (PV ...
Chia-Sheng Tu   +2 more
doaj   +1 more source

Study on Operation Parameter Characteristics of Induction Filter Distribution Transformer in Low-Voltage Distribution Network

open access: yesIEEE Access, 2021
There is a need for induction filter technology in the field of low-voltage distribution networks. This paper proposes an induction filter distribution transformer with a unique Dd0yn11 three-winding configuration. This approach allows for the control of
Xiao Zhang   +3 more
doaj   +1 more source

Transform-Based Distributed Data Gathering [PDF]

open access: yesIEEE Transactions on Signal Processing, 2010
A general class of unidirectional transforms is presented that can be computed in a distributed manner along an arbitrary routing tree. Additionally, we provide a set of conditions under which these transforms are invertible. These transforms can be computed as data is routed towards the collection (or sink) node in the tree and exploit data ...
Shen, Godwin, Ortega, Antonio
openaire   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Investigation of the usage of zigzag transformers to reduce harmonics distortion in distribution systems

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2023
The increasing use of power electronics in various sectors leads to harmonic distortion in electric power systems, affecting power quality and equipment longevity.
Langlang Gumilar   +4 more
doaj   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Distribution Transformer Outage Prediction Based on Logistic Fast Minimum Error Entropy Algorithm

open access: yes发电技术, 2022
In order to improve the speed and accuracy of distribution transformer outage prediction, a distribution transformer outage prediction method based on Logistic fast minimum error entropy algorithm was proposed.
XU Zhong   +7 more
doaj   +1 more source

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