Results 11 to 20 of about 103,131 (263)

Effect of Different Tunnel Distribution on Dynamic Behavior and Damage Characteristics of Non-Adjacent Tunnel Triggered by Blasting Disturbance

open access: yesMathematics, 2022
When a blasting is executed near two tunnels, the blasting wave will trigger a dynamic response and damage to the tunnels. Depending on the tunnel distribution, the path of the blasting wave to the remote non-adjacent tunnels will change. The aim of this
Jiadong Qiu, Fan Feng
doaj   +1 more source

Deformation characteristics and novel strain criteria of strainbursts induced by low‐frequency cyclic disturbance

open access: yesDeep Underground Science and Engineering, 2023
Strainbursts induced by cyclic disturbance with low frequency (termed as cyclic‐induced strainbursts) are major dynamic disasters during deep excavation and mining.
Lihua Hu   +3 more
doaj   +1 more source

Conservation planning integrating natural disturbances: Estimating minimum reserve sizes for an insect disturbance in the boreal forest of eastern Canada.

open access: yesPLoS ONE, 2022
Large natural disturbances such as insect outbreaks and fire are important processes for biodiversity in forest landscapes. However, few methods exist for incorporating natural disturbances into conservation planning. Intact forest landscapes, such as in
Marc Edwards   +5 more
doaj   +2 more sources

Failure and instability mechanism of anchored surrounding rock for deep chamber group with super-large section under dynamic disturbances

open access: yesRock and Soil Mechanics, 2021
The interaction of super-large section chamber group in deep and close-distance condition will lead to stress concentration and wide failure range of surrounding rock, especially under dynamic disturbances.
LIU Xue-sheng   +4 more
doaj   +1 more source

Development and application of multifunctional shear test apparatus for rock discontinuity under dynamic disturbance loading

open access: yesRock and Soil Mechanics, 2022
Dynamic disturbance is an important influence factor that causes the sliding instability of rock discontinuity and then triggers strong dynamic geological disasters, such as earthquakes and rock bursts.
CUI Guo-jian   +6 more
doaj   +1 more source

Influence of dynamic disturbance on rock creep from time, space and energy aspects

open access: yesGeomatics, Natural Hazards & Risk, 2022
In order to explore the influence of dynamic disturbance on creep behavior of rock, the creep damage evolution in rock under the dynamic disturbance are reproduced with creep damage model.
Zhen Yang   +4 more
doaj   +1 more source

Time-dependent deformation characteristics of red sandstone under multiple dynamic disturbances

open access: yesYantu gongcheng xuebao, 2022
In order to explore the time-dependent deformation characteristics of deep engineering rock mass under disturbed action, the dynamic disturbance triaxial loading tests on red sandstone are carried out by using the disturbed servo triaxial loading system.
LIU Min-long 1, CHEN Shi-hai 1, SHI Wei-min 1, CUI Guang-qiang 1, SHEN Feng 1, LI Hai-bo 2
doaj   +1 more source

Extended dynamics observer for linear systems with disturbance

open access: yesEuropean Journal of Control, 2023
This is the last part of four series papers, aiming at stabilization for signal-input-signaloutput (SISO) linear finite-dimensional systems corrupted by general input disturbances. A new observer, referred to as Extended Dynamics Observer (EDO), is proposed to estimate both the state and disturbance simultaneously. The working mechanism of EDO consists
Hongyinping Feng, Bao-Zhu Guo
openaire   +2 more sources

A theory of pulse dynamics and disturbance in ecology [PDF]

open access: yesEcology, 2019
AbstractWe propose four postulates as the minimum set of logical propositions necessary for a theory of pulse dynamics and disturbance in ecosystems: (1) resource dynamics characterizes the magnitude, rate, and duration of resource change caused by pulse events, including the continuing changes in resources that are the result of abiotic and biotic ...
Jentsch, Anke, White, Peter
openaire   +2 more sources

Non-dynamism and temporal disturbances

open access: yesSynthese, 2023
AbstractPhilosophical accounts denying that temporal passage is an objective feature of reality face an explanatory challenge with respect to why it appears to us as though time passes. Recently, two solutions have surfaced. Cognitive illusionism claims that people experience the passage of time due to their belief that time passes.
Sam Baron   +2 more
openaire   +3 more sources

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