Results 61 to 70 of about 1,761 (214)
Sustainable, Renewable and Environmental-Friendly Insulation Systems for High Voltages Applications
Molecules, 2020 With the inception of high voltage (HV), requisites on the insulating permanence of HV equipment is becoming increasingly crucial. Mineral/synthetic oil liquid insulation—together with solid insulation materials (paper, pressboard)—is the fundamental ...
Muhammad Rafiq +5 more
doaj +1 more source
Fiscal Policy Regimes in Resource‐Rich Economies
Journal of Applied Econometrics, EarlyView.ABSTRACT We analyse fiscal policy in resource‐rich economies using a novel Bayesian regime‐switching panel model. The identified regimes capture pro‐ or countercyclical fiscal behaviour by allowing regime‐specific shifts in the average fiscal stance, while the switches between the regimes have the interpretation of changes in fiscal policy.
Hilde C. Bjørnland +3 more
wiley +1 more source
Journal of Sustainable Energy, 2017 The influence on the quality of the electrical insulating fluids on the safety in operation of the transformers has been evaluated. After processing the comparative experimental data obtained by gas chromatography technique on 5 different sorts of ...
VOINA A. +7 more
doaj
Fire resistance test of transformers filled with natural ester insulating liquid
The Journal of Engineering, 2018 Natural ester fluids, as a renewable, biodegradable liquid dielectric, its flash point is above 300°C, and the burning point exceeds 330°C, high flash point liquids known as ‘less flammable’ liquids.
Shengwei Cai +5 more
doaj +1 more source
Image Encoding With Blipped Gradients in an Echo Train
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose An MRI scanner was designed and built to encode k$$ k $$‐space points in the spin echoes occurring between 180∘$$ 18{0}^{\circ } $$ pulses in an echo train by using blipped B0$$ {B}_0 $$ gradient pulses applied just prior to those spin echoes.
Logi Vidarsson, Gordon E. Sarty
wiley +1 more source
电力工程技术Gas to liquid (GTL) synthetic oil, produced from natural gas, exhibits excellent environmental and electrical properties, making it suitable for use as a new type of transformer insulating oil.
Beibei CHEN +3 more
doaj +1 more source
Polymer International, EarlyView.An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley +1 more source
Soybean oil mixed with methyl soyate to form a fluidity enhanced natural ester insulating oil
Industrial Crops and ProductsAs a potential alternative to mineral oils because of their outstanding environmental performance, natural ester insulating oils have poor oxidizing and flow properties. This defect has drawn widespread attention from scholars.
Zhuoyue Sun +4 more
doaj +1 more source
Journal of Thermal Science and Technology, 2019 The thermal, physical and morphological characteristics of dielectric insulating oil - based nanofluids were investigated. The nanofluids were produced by the two-step method, homogeneously dispersing AlN and TiO2 nanoparticles within insulating mineral ...
Jaime TAHA-TIJERINA +3 more
doaj +1 more source
Actuation Strategies for Underwater Jet‐Propelled Soft Robots
Journal of Field Robotics, EarlyView.ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone +3 more
wiley +1 more source