Results 21 to 30 of about 246,864 (291)
Rockburst Intensity Level Prediction Method Based on FA-SSA-PNN Model
Energies, 2022 To accurately and reliably predict the occurrence of rockburst disasters, a rockburst intensity level prediction model based on FA-SSA-PNN is proposed. Crding to the internal and external factors of rockburst occurrence, six rockburst influencing factors
Gang Xu +4 more
doaj +1 more source
Attractors of semigroups associated with nonlinear systems for diffusive phase separation
Abstract and Applied Analysis, 1996 We consider a model for diffusive phase transitions, for instance, the component separation in a binary mixture. Our model is described by two functions, the absolutete temperature θ:=θ(t,x) and the order parameter w:=w(t,x), which are governed by a ...
Nobuyuki Kenmochi
doaj +1 more source
, 2023 Same as Fig 4 in the main text, but the firing rate of each input neuron was calculated using Eq 5 and substituting θ by θ + σ, where σ is randomly drawn for each input neuron from a normal distribution with mean 0 and standard deviation .
Júlia V. Gallinaro (11682139) +2 more
core +1 more source
Sensors, 2023 Owing to the increasing popularity of smart agriculture in recent years, it is necessary to develop a single sensor that can measure several soil properties, particularly the soil water content and matric potential. Therefore, in this study, we developed
Yuki Kojima +3 more
doaj +1 more source
On the observed hysteresis in field-scale soil moisture variability and its physical controls
Environmental Research Letters, 2016 The spatiotemporal variability of soil moisture ( θ ) has rarely been studied at the field scale across different seasons and sites. Here, we utilized 9 months of θ data in two semiarid ecosystems of North America to investigate the key relationship ...
G Mascaro, E R Vivoni
doaj +1 more source
International Journal of Mathematics and Mathematical Sciences, 1993 Existence of a weak solution is established for the initial-boundary value problem for the system ∂∂tu−div (θ(u)∇u)+σ(u)α(u)∇u∇v=σ(u)|∇v|2, div (σ(u)∇v)=0. The question of uniqueness is also considered in some special cases.
Xiangsheng Xu
doaj +1 more source
Energies, 2022 When a hydrokinetic turbine operates in a confined flow, blockage effects are introduced, altering the flow at and downstream of the rotor. Blockage effects have a significant effect on the loading and performance of turbines.
Abdulaziz Abutunis +1 more
doaj +1 more source
An in-situ methodology to separate the contribution of soil water content and salinity to EMI-based soil electrical conductivity [PDF]
SOILSalt accumulation in the root zone limits agricultural productivity and can eventually lead to land abandonment. Therefore, monitoring the spatial distribution of soil water content and solution salinity is crucial for effective land and irrigation ...
D. Autovino +5 more
doaj +1 more source
Water Resources Research, 2023 Soil unsaturated hydraulic conductivity (K), which depends on water content (θ) and matric potential (ψ), exhibits a high degree of variability at the field scale.
Yongwei Fu +3 more
doaj +1 more source
, 2016 Maximum-likelihood estimates of θ and m, with J=2000, θ=100, σ=0.001 or 0.002, and various dispersal rates from the ...
Shu-Rong Zhou (2915717) +1 more
core +1 more source