Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Roya Nikjoo"'
Publikováno v:
Journal of Caring Sciences, Vol 1, Iss 4, Pp 255-261 (2012)
Introduction: Intrauterine device (IUD) is the most common reliable, effective and reversible contraceptive method used worldwide and in areas with high growth rate is of particular importance. IUD insertion is associated with high anxiety in most pe
Externí odkaz:
https://doaj.org/article/a6e54f4324c14356b356af5d0a134529
Autor:
Lars Wågberg, Eva Malmström, Nathaniel Taylor, Hans Edin, Roya Nikjoo, Martin Wåhlander, Rebecca Hollertz
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 24:1726-1734
Surface discharge behavior of modified oil-impregnated paper (OIP) with nanoparticles (NPs), has been investigated under AC voltage with superimposed impulses. Surface Partial Discharges (PD) can develop at an oil-paper interface and lead to its degr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1bbec49bc4f531e27891c1db86e7852
https://doi.org/10.1109/tdei.2017.006053
https://doi.org/10.1109/tdei.2017.006053
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 24:511-518
Dielectric response (DR) measurement is commonly used for condition assessment of insulation systems of power components. A method for measurement of dielectric response using the stimulus of natural transients such as lightning and switching impulse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aab01b1f66ec8f311b2bcd73f3ad266f
https://doi.org/10.1109/tdei.2016.006084
https://doi.org/10.1109/tdei.2016.006084
Publikováno v:
2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe).
Growing perception of diverse generation resources and demand response operation of power system with high uncertainty has increased the attention to a more dynamic and accurate day-ahead load prediction. In this paper, we develop an stochastic model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6dfd0bea2e75f317c388e471ea7d32b
https://doi.org/10.1109/eeeic.2019.8783908
https://doi.org/10.1109/eeeic.2019.8783908
Autor:
Roya Nikjoo, Nami Mahmoudi
Publikováno v:
2019 IEEE Milan PowerTech.
Winding Resistance Measurement and Dissolved Gas Analysis are two common methods in diagnostics of oil filled power transformers. Since winding resistance measurements are simple to perform and are not aggressive for the transformer, this test is com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c0f1657e362d538daa2f0e9792a0623
https://doi.org/10.1109/ptc.2019.8810560
https://doi.org/10.1109/ptc.2019.8810560
Publikováno v:
2019 IEEE Milan PowerTech.
Dynamic Resistance Measurement (DRM) is introduced in the last decade and provides more information about the condition of the OLTC than static measurements. However, there is little information available on how to interpret the results from the DRM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af6204cef549476972c281f6841e34ff
https://doi.org/10.1109/ptc.2019.8810530
https://doi.org/10.1109/ptc.2019.8810530
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 23:3602-3611
The effect of HV impulses on surface and cavity partial discharges (PD) of oil-impregnated paper (OIP) is investigated in this work, by subjecting specimens to impulse voltages superimposed on a continuous AC voltage. The superposition of transient a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa933b32e13a1e39a19420ea266aa2cc
https://doi.org/10.1109/tdei.2016.006054
https://doi.org/10.1109/tdei.2016.006054
Publikováno v:
Proceedings of the Nordic Insulation Symposium.
This work investigates how HV impulses affect the behavior of partial discharge (PD) activity and the low voltage dielectric response of oil-impregnated paper insulation. It also investigates how the change in the PD activity is related to the degrad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27b00239906974eaaa89e2dbdfc263d3
https://doi.org/10.5324/nordis.v0i23.2467
https://doi.org/10.5324/nordis.v0i23.2467
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 22:2923-2930
This work investigates the effect of alternating current partial discharge (AC PD) byproducts on the dielectric frequency response (DFR) of oil-paper insulation comprising of a small cavity, in the frequency range of 1.0 mHz to 1.0 kHz. The investiga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d9e51d0df597dc70f3cfc5844eea025
https://doi.org/10.1109/tdei.2015.004424
https://doi.org/10.1109/tdei.2015.004424
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 21:1243-1250
High voltage (HV) transients in electrical power systems are mainly caused by lightning strikes and switching operations. The dielectric properties of a particular electrical insulation at the instant of interaction with a high voltage transient woul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71cc46fc8611f88fe82f8dea1ffec31f
https://doi.org/10.1109/tdei.2014.6832271
https://doi.org/10.1109/tdei.2014.6832271