Results 41 to 50 of about 16,773 (290)

Mechanical Analysis of Frost Heave of Trapezoidal Canal in Frozen Soils with Shallow Groundwater Table

open access: yesGuan'gai paishui xuebao, 2022
【Objective】 Frost heave is a hazard damaging canals constructed in frozen soils with shallow groundwater table. Taking trapezoidal canals with arc bottoms as an example, this paper investigated the mechanisms underlying the formation of frost heave and ...
XIAO Min   +5 more
doaj   +1 more source

Frost heave in compressible soils [PDF]

open access: yes, 2010
We develop a mathematical model of frost heave in compressible soils based on a morphological instability of the ice–soil interface. The theory accounts for heave and soil consolidation,while avoiding the frozen fringe assumption.
Sander, Graham   +3 more
core  

Experimental study on horizontal frost heave force on open-cut tunnels in seasonal frozen regions

open access: yesFrontiers in Earth Science, 2023
Model tests were performed with different temperatures and soil stabilizers to investigate the effect of horizontal frost heave force on open tunnels in seasonal frozen regions.
Zhang Meng-Ya   +5 more
doaj   +1 more source

Influência dos parâmetros geométricos de uma plataforma semissubmersível no movimento de heave [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina. Campus Joinville. Engenharia Naval.O presente trabalho tem como objetivo estudar as respostas em heave do movimento de uma plataforma semissubmersível.
Lopes, Pedro Paludetto Silva de
core  

Frost heave prediction of chilled pipelines buried in unfrozen soils

open access: yes, 1984
Frost heave is an important consideration in the design of buried chilled pipelines. A procedure for calculating the amount of heave under a chilled gas pipeline is presented based on a finite-difference formulation of the heat and mass transfer in ...
Konrad, J. M., Morgenstern, N. R.
core   +1 more source

High‐Pressure Modulation of Breathing Kagome Lattice: Cascade of Lifshitz Transitions and Evolution of the Electronic Structure

open access: yesAdvanced Science, EarlyView.
External pressure directly tunes the breathing distortion of the kagome lattice in Fe3Sn2, suppressing it near 15 GPa and reversing it at higher pressures. This structural modulation drives a cascade of Lifshitz transitions, reconstructs the Fermi surface, strengthens electronic correlations and carrier localization, and modifies ultrafast electron ...
Marcos Vinicius Gonçalves‐Faria   +14 more
wiley   +1 more source

Double-optimization design of trapezoidal canals considering frost-heave resistance and hydraulic section

open access: yesYantu gongcheng xuebao, 2022
The linings of trapezoidal concrete canals in cold regions are prone to frost-heave damage, and both the frost-heave resistance and the water transport efficiency should be taken into account in the design of section.
XU Hu-cheng 1, LIU Yu-xin 2, WANG Yi 3, HAN Xiao-feng 3, DINA Tursun Ali 1
doaj   +1 more source

Effects of volumetric allocation on heave response of semisubmersible in deep sea

open access: yes, 2009
The configuration of semisubmersibles consisting of pontoons and columns and their corresponding heave motion response in incident progressive waves are examined.
李家春, 张会琴
core   +1 more source

Emergent Magnetism, Heavy Electrons, and Pressure‐Induced Reentrant Superconductivity in the Iron Substituted 4d Transition‐Metal Sulfides

open access: yesAdvanced Science, EarlyView.
This work illustrates that magnetic Fe substitution enables systematic modulation of physical properties of the putative unconventional superconductor Rh17S15. Iron doping uncovers delicate competition between weak ferromagnetism, spin‐glass states, heavy‐fermion signatures, and superconductivity.
Yalei Huang   +18 more
wiley   +1 more source

Investigation of motion response suppression characteristics in floating platforms equipped with novel spiral side plates

open access: yesEnergy Science & Engineering
To enhance the stability of floating wind turbine platforms, this study combines the structural characteristics of helical side plates and proposes the installation of serrated helical side plates on Spar wind turbine platforms.
Yu Jing‐mei, Bai Chun‐long
doaj   +1 more source

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