Results 151 to 160 of about 5,073,058 (275)
Deep Underground Science and Engineering, EarlyView.Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang +4 more
wiley +1 more source
"Patterns of Non-exponential Growth of Macroeconomic Models: Two-parameter Poisson-Dirichlet Models" [PDF]
This paper discusses non-exponential growth patterns of macroeconomic models. More specifically, the paper discusses asymptotic growth patterns of the numbers of clusters and of components of partition vectors, that is, the number of clusters of specific
Masanao Aoki
core
A Two Parameter Discrete Lindley Distribution
Revista Colombiana de EstadísticaIn this article we have proposed and discussed a two parameter discrete Lindley distribution. The derivation of this new model is based on a two step methodology i.e.
TASSADDAQ HUSSAIN +2 more
doaj
Deep Underground Science and Engineering, EarlyView.A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen +5 more
wiley +1 more source
Bivariate Poisson and Diagonal Inflated Bivariate Poisson Regression Models in R [PDF]
In this paper we present an R package called bivpois for maximum likelihood estimation of the parameters of bivariate and diagonal inflated bivariate Poisson regression models. An Expectation-Maximization (EM) algorithm is implemented.
Dimitris Karlis, Ioannis Ntzoufras
core
Zero-Inflated Promotion Cure-Rate Models With Frailty and Flexible Activation Schemes. [PDF]
Biom JAssunção D +5 more
europepmc +1 more source
The impact of forced closure on proppant distribution of hydraulic fracturing in shale formations
Deep Underground Science and Engineering, EarlyView.Research findings demonstrate that implementing forced closure within shale formations can remarkably mitigate proppant settlement, concurrently increasing the effective propped surface area from 29.74% to 38.68%. Abstract Forced closure is widely used in conventional oil and gas reservoirs to promote uniform proppant placement.
Tongxuan Gu +3 more
wiley +1 more source
Rethinking viral evolution: How BIAS mechanisms and Gamma-Poisson overdispersion redefine lethal mutagenesis. [PDF]
Front MicrobiolWang D, Zhang X, Chang Q.
europepmc +1 more source
Deep Underground Science and Engineering, EarlyView.An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun +3 more
wiley +1 more source
Spatiotemporal Modeling Approach to Mapping Geographic and Temporal Variation in Cancer Incidence Rates for US Counties. [PDF]
Cancer Epidemiol Biomarkers PrevLiu B +7 more
europepmc +1 more source