Results 31 to 40 of about 1,713,738 (281)

Analysis of Cyperus esculentus–Soil Dynamic Behavior during Rotary Tillage Based on Discrete Element Method

open access: yesAgriculture, 2023
Considering the problems of low soil fragmentation rates, high working resistance, and high energy consumption in the harvesting process of Cyperus esculentus in China, a method of Cyperus esculentus harvesting based on counter-rotation digging is ...
Zhuang Zhao   +9 more
doaj   +1 more source

Disturbance-free single-pixel imaging camera based on P=0.5 Bernoulli modulation and complementary detection

open access: yes, 2022
We present a technique called single-pixel imaging camera based on complementary detection and optimized Bernoulli modulation (CSPI camera), which can significantly reduce the influence of the disturbance light to single-pixel imaging (SPI).
Wenlin Gong (1634953)
core   +1 more source

Ecological Analysis of Disturbance and Disturbance Intensity Estimates for Rainwater Harvesting

open access: yesPolish Journal of Environmental Studies, 2015
From an ecological perspective, the nature of rainwater harvesting with the characteristics of artificial disturbance is a manual disturbance. So it is very important to confirm the degree of ecological disturbance that occurs due to rainwater harvesting.
LIU Yubang   +3 more
openaire   +1 more source

Physical Characteristics of Section Coal and Rock Pillars Under Roof Shock Disturbances From Goaf

open access: yesFrontiers in Physics, 2020
The stability of a rock strata structure is closely related to its response physical characteristics under external shock disturbance. The roof shock disturbance from goaf is usually one of the important factors that cause coal and rock pillar ...
Ronghua Su, Hongshuang Shen
doaj   +1 more source

The persistence of bacterial diversity and ecosystem multifunctionality along a disturbance intensity gradient in karst soil

open access: yes, 2020
Extensive, progressive rock emergence causes localized variations in soil biogeochemical and microbial properties that may influence the capacity for the regeneration of degraded karst ecosystems.
Kuzyakov, Yakov   +15 more
core   +1 more source

Numerical simulation of roadway deformation and failure under different degrees of dynamic disturbance

open access: yesScientific Reports, 2022
Deformation and failure of the roadway surrounding rock under dynamic disturbance were explored, which is essential for the control of the surrounding rock.
Ce Jia   +5 more
doaj   +1 more source

Disturbance intensity, disturbance extent and ocean climate modulate kelp forest understory communities [PDF]

open access: yesMarine Ecology Progress Series, 2020
Disturbances often control community structure by removing large dominant species, allowing new species to colonize. Disturbances vary in intensity and extent, and their effects on resident communities can depend on local environmental conditions. We tested the effects of disturbance intensity and extent on different functional groups of understory ...
Wernberg, Thomas   +3 more
openaire   +2 more sources

Changes in landscape disturbance intensity of sloping land in mountainous areas and their relationship with ecosystem services [PDF]

open access: yesNature Conservation
The stability of landscapes on sloping land forms the foundation for ecological protection and sustainable development in mountainous regions. However, with the intensification of human activities, particularly in the complex mountainous areas of ...
Huiqing Han, Xin Yu, Yuanju Jian
doaj   +3 more sources

Transient Dynamics Analysis of a Predator-Prey System with Square Root Functional Responses and Random Perturbation

open access: yesMathematics, 2022
In this paper, we study the asymptotic and transient dynamics of a predator–prey model with square root functional responses and random perturbation. Firstly, the mean square stability matrix is obtained from the stability theory of stochastic systems ...
Jianguo Tan, Wenjuan Wang, Jianfeng Feng
doaj   +1 more source

Crack propagation mechanisms and stress evolution of floor under dynamic disturbance in deep coal mining

open access: yesYantu gongcheng xuebao, 2018
Inrush accidents are easily and frequently caused under high geostress and rising of dynamic disasters which induce crack propagation of rock mass in deep coal mining. So it is important to study the crack propagation mechanisms under dynamic disturbance.
LI Chun-yuan 1,2, ZHANG Yong 2, ZHANG Guo-jun 2, GAO Shou-yang 2, WANG Hong-bo 2
doaj   +1 more source

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