Results 1 to 10 of about 2,499 (104)

Multi-layered cement-hydrogel composite with high toughness, low thermal conductivity, and self-healing capability [PDF]

open access: yesNature Communications, 2023
The inherent quasi-brittleness of cement-based materials, due to the disorder of their hydration products and pore structures, present significant challenges for directional matrix toughening.
Yuan Chen   +7 more
doaj   +2 more sources

Steady-State Motion of a Load on an Ice Cover with Linearly Variable Thickness in a Channel

open access: yesJournal of Marine Science and Engineering, 2023
The paper considers the visco-elastic response of the ice cover in a channel under an external load moving with constant speed along the center line. The channel has a rectangular cross-section with a finite depth and width.
Konstantin Shishmarev   +2 more
doaj   +1 more source

Motion of a submerged body in a near-surface water environment

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2022
This study considered the motion of a submerged body near the free surface of a liquid and a liquid covered with ice cover, both theoretically and experimentally. Mathematically, the body was modelled using the source–sink system.
Vitaly Zemlyak   +2 more
doaj   +1 more source

Interaction of a Flexural-Gravity Wave with a Vertical Rigid Plate Built in a Floating Elastic Plate

open access: yesJournal of Marine Science and Engineering, 2023
The linear two-dimensional problem of interaction between an hydroelastic wave propagating along an elastic floating ice plate with built-in vertical rigid plate is studied. The fluid under the ice is inviscid and incompressible.
Qiyuan Wu   +3 more
doaj   +1 more source

Improving the energy efficiency of wide crossings of overhead power lines [PDF]

open access: yesE3S Web of Conferences, 2020
The use of new generation wires in the design of wide spans of overhead power lines over water barriers and large gorges can increase their transmission capacity and increase reliability.
Shevchenko Natalya   +4 more
doaj   +1 more source

A Simplified Method of Flexible Conductors Mechanic Calculation in Switchgears without Restrictions on the Number of Taps

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023
The purpose of the mechanical calculation of flexible conductors of switchgears and power lines is to determine the sag, tensions, and loads on support structures, minimum distances to adjacent live parts and some other parameters. Calculations should be
Yu. V. Bladyko   +2 more
doaj   +1 more source

Search for correlations of high-energy neutrinos and ultrahigh- energy cosmic rays [PDF]

open access: yesEPJ Web of Conferences, 2019
The IceCube Neutrino Observatory has recently found compelling evidence for a particular blazar producing high-energy neutrinos and PeV cosmic rays, however the sources of cosmic rays above several EeV remain unidentified.
Schumacher Lisa
doaj   +1 more source

Quiet eye predicts goaltender success in deflected ice hockey shots [PDF]

open access: yesEuropean Journal of Sport Science, 2016
AbstractIn interceptive timing tasks, long quiet eye (QE) durations at the release point, along with early tracking on the object, allow performers to couple their actions to the kinematics of their opponent and regulate their movements based on emergent information from the object's trajectory.
Derek Panchuk   +2 more
openaire   +3 more sources

Deflection of ice cover caused by an underwater body moving in channel [PDF]

open access: yesJournal of Physics: Conference Series, 2017
Deflections and strains in an ice cover of a frozen channel caused by an underwater body moving under the ice with a constant speed along the channel are studied. The channel is of rectangular cross section, the fluid in the channel is inviscid and incompressible. The ice cover is clamped to the channel walls.
Shishmarev, K A   +2 more
openaire   +3 more sources

The effect of ice shelf rheology on shelf edge bending [PDF]

open access: yesThe Cryosphere
The distribution of pressure on the vertical seaward front of an ice shelf has been shown to cause downward bending of the shelf if the ice is assumed to have vertically uniform viscosity.
W. R. Buck
doaj   +1 more source

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