Deepwater Christmas Tree Development

1989 ◽  
Author(s):  
P.P. Alfano ◽  
C.H.N. Barbosa ◽  
M.A. Lewis
Keyword(s):  
Christmas Tree ◽  
Tree Development

Radiated Electro-Magnetic Waves Caused by Electrical Tree Development in Epoxy Resin

2009 ◽  
Vol 129 (12) ◽  
pp. 915-921 ◽  
Author(s):  
Hideki Ueno ◽  
Takashi Nagamachi ◽  
Masaki Nakamura ◽  
Hiroshi Nakayama ◽  
Kunihiko Kakihana
Keyword(s):  
Epoxy Resin ◽  
Electrical Tree ◽  
Electro Magnetic ◽  
Tree Development ◽  
Magnetic Waves

Boy in front of Christmas tree with toys

2018 ◽  
Keyword(s):  
Christmas Tree

scholarly journals Study on the Relationship between Electrical Tree Development and Partial Discharge of XLPE Cables

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Chaofei Gao ◽  
Yanlong Yu ◽  
Zan Wang ◽  
Wei Wang ◽  
Liwei Zheng ◽  
...  
Keyword(s):  
Statistical Characteristics ◽  
Time Frequency ◽  
Experimental Platform ◽  
Equivalent Time ◽  
Electrical Tree ◽  
Electrical Trees ◽  
Insulation Breakdown ◽  
The Relationship ◽  
Frequency Diagram ◽  
Tree Development

Based on the slice materials of 35 kV and 110 kV XLPE cables, an experimental platform is built to study the relationship between electrical tree and PDs in XLPE with different voltage levels. There are three significant statistical characteristics of the PDs during the growth of electrical trees. The analysis of the results shows that each growth stage has certain characteristics. Different features existed between the growth of the electrical trees and the PD in the insulation of the 35 and 110 kV cables. Evident characteristics such as large spans of time and frequency were present as the electrical trees grew violently in the equivalent time-frequency diagram at every stage. These results could provide criteria for the identification of the deterioration using PD to monitor cables in service at rated voltages. The results are important for the identification of defects in cable insulation in order to provide an early warning of insulation breakdown in the cables.

scholarly journals Wnt5a Deficiency Leads to Anomalies in Ureteric Tree Development, Tubular Epithelial Cell Organization and Basement Membrane Integrity Pointing to a Role in Kidney Collecting Duct Patterning

PLoS ONE ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. e0147171 ◽  
Author(s):  
Ilkka Pietilä ◽  
Renata Prunskaite-Hyyryläinen ◽  
Susanna Kaisto ◽  
Elisavet Tika ◽  
Albertien M. van Eerde ◽  
...  
Keyword(s):  
Epithelial Cell ◽  
Basement Membrane ◽  
Collecting Duct ◽  
Membrane Integrity ◽  
Tubular Epithelial Cell ◽  
Kidney Collecting Duct ◽  
Cell Organization ◽  
Tree Development
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