Results 31 to 40 of about 140,545 (203)

Parent Hamiltonians of Jastrow wavefunctions

SciPost Physics Core, 2021
We find the complete family of many-body quantum Hamiltonians with ground-state of Jastrow form involving the pairwise product of a pair function in an arbitrary spatial dimension.
Mathieu Beau, Adolfo del Campo
doaj   +1 more source

Potential for use of activated clays in concrete in Sweden – Roadmap

, 2021
The Swedish construction industry is generating a save and affordable built environment for transport, work and living but it is faced with a huge challenge: drastic reduction of greenhouse gases and an increase of circularity in their production cycles.
Mueller, Urs, Plusquellec, Gilles, Malaga, Katarina   +2 more
core  

Electric Shock Simulation and Risk Assessment in Low-Voltage Distribution Networks Under Unknown Topology: A Two-Stage Approach Based on Smart Meter Data

Energies
Low-voltage distribution networks are critical for supplying power to end-users, and electric shock safety is a key concern; however, the frequent incompleteness of topology information in practical operations makes it challenging to accurately assess ...
Zhe Li, Shoukang Luo, Xiaojia Sun, Yang Li, Yubo Zhang, Chakhung Yeung, Yuxuan Ding   +6 more
doaj   +1 more source

Mitigation of transient ground potential rise in gas insulated substations during very fast transient overvoltage

, 2022
This paper is focused on the assessment and mitigation of the transient response of a Gas Insulated Substation's (GIS) grounding grid to the fault due to voltage breakdown using the Partial Element Equivalent Circuit (PEEC) numerical approach.
Micu, Dan D, Czumbil, Levente, Andolfato, Roberto, Alexandru, Muresan, Nouri, Hassan, Polycarpou, Alexis   +5 more
core   +2 more sources

Biomass ash as supplementary cementitious materials: Characterization, application, and re-conditioning

, 2022
Biomass ash as supplementary cementitious materials: Characterization, application, and re-conditioning New types of supplementary cementitious materials (SCM) are in demand, due to the foreseen decrease in the availability of traditional SCM (i.e.
L'Hopital, Emilie, Mueller, Urs, Babaahmadi, Arezou, Plusquellec, Gilles   +3 more
core  

Effects of Temperature Gradient on Electrical Tree Initiation and Breakdown Phenomenon in XLPE Under Harmonic Superimposed DC Voltage

IEEE Access, 2021
In this article, the temperature of the needle tip and the ground electrode were changed to obtain different temperature gradients. The harmonic superimposed DC voltage was also simultaneously applied to study the electrical tree initiation, growth and ...
Lewei Zhu, Boxue Du, Kai Hou
doaj   +1 more source

Ground Surface Temperature History Since the Last Glacial Maximum in Northeast Asia: Reconstructions From the Borehole Geotherms of the International Continental Scientific Drilling Program

Geophysical Research Letters, 2023
Past ground surface temperature (GST), one of the important aspects of paleoclimate reconstructions, can be inverted from borehole temperature measurements.
Guangzheng Jiang, Yuntao Tian, Qingtian Lv, Mike Sandiford, Yizuo Shi, Changchun Zou, Feng Ma, Chenglong Deng, Lijuan He, Shengbiao Hu   +9 more
doaj   +1 more source

A Collaborative System of Flying and Ground Robots with Universal Physical Coupling Interface (PCI), and the Potential Interactive Applications [PDF]

, 2022
Flying and ground robots complement each other in terms of their advantages and disadvantages. We propose a collaborative system combining flying and ground robots, using a universal physical coupling interface (PCI) that allows for momentary connections
Hu, Ziyi, Wang, Ziming, Fjeld, Morten,, Hu, Ziyi,, Man, Yemao, Man, Yemao,, Wang, Ziming,, Fjeld, Morten   +7 more
core   +1 more source

The impact of substation secondary equipotential grounding grid connection methods on grounding grid characteristics

电力工程技术
The impact of electromagnetic interference on secondary systems in substations can be reduced by the installation of secondary equipotential grounding grid.
Zhiwei CAO, Wenda JIA, Jihao WANG, Qing YAN, Jinjun HUANG, Jun GUO   +5 more
doaj   +1 more source

Analysis of a back flashover across insulator strings on a 115 kV transmission line tower by PSCAD

KKU Engineering Journal, 2015
Lightning striking on a transmission tower induces high ground potential rise and high voltage at tower arms in which potential is normally at ground level, and subsequently causes overvoltage across an insulator string.
Worakit Anekthanasuwan, Pongsit Jumrain, Tanoot Junpradit, Nit Petcharaks   +3 more
doaj   +1 more source