Results 181 to 190 of about 5,073,058 (275)

Study on Roof‐Control Technology for Gob‐Side Entry Retaining Under Composite Roofs

Energy Science &Engineering, EarlyView.
This study develops a roof‐control technology system for gob‐side entry retaining under composite roofs. By integrating field measurements, theoretical analysis, and numerical simulation, it reveals the spatiotemporal evolution of the plastic zone and proposes a targeted support method, providing theoretical and practical guidance for safe and ...
Dong Li, Yujiang Zhang, Yunlou Du, Haodong Zheng, Baoji Yang   +4 more
wiley   +1 more source

Bounds for the difference between median and mean of gamma and poisson distributions

We use elementary methods and the Poisson-Gamma relationship to obtain bounds for the difference between median and mean of Gamma and Poisson distributions.Poisson distribution Gamma distribution median mean Poisson-Gamma ...
Rubin, Herman, Chen, Jeesen
core  

Maximal Minimal Spacing for Random Points. [PDF]

J Stat Phys
Cunden FD, Cuppone N, Gramegna G, Vivo P.   +3 more
europepmc   +1 more source

First‐Principles Study of Novel A2CaTiH6 (A = Li, Na, K, Rb) Hydrides for Solid‐State Hydrogen Storage Applications

Energy Science &Engineering, EarlyView.
First‐principles investigation of A2CaTiH6 (A = Li, Na, K, Rb) hydrides reveals structural, electronic, mechanical, thermodynamic, and hydrogen storage properties. Negative formation energies confirm stability, while all compounds are metallic and mechanically stable. K2CaTiH6 and Rb2CaTiH6 are dynamically stable, with capacities of 2.28 wt.%–5.61 wt.%.
Nur Mohammad Riyad Kawsar, Sharmin Islam, Khalifa Raihan Afif, Istiak Ahmed Ovi, Mubasshirul Islam Shihab, Mohammad Sahedul Islam Sagor   +5 more
wiley   +1 more source

First-Order Statistic of Afterpulsing and Crosstalk Events in Silicon Photomultipliers. [PDF]

Sensors (Basel)
Vinogradov S.
europepmc   +1 more source

Optimization of Blasting‑Induced Roof Cutting Parameters in Key Stratum and Its Application in Gob‑Side Entry Retention Technology

Energy Science &Engineering, EarlyView.
This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley   +1 more source

An Agent-Based Modelling Approach to Investigate the Impact of Sex and Gender on Tuberculosis Transmission: A Case Study of Kampala, Uganda. [PDF]

Bull Math Biol
Doran JWG, Mujuni D, Gallagher K, Yates CA, Bowness R.   +4 more
europepmc   +1 more source

Exact Computation of the Color Function for Triangular Element Interfaces

International Journal for Numerical Methods in Fluids, EarlyView.
We propose a robust algorithm, the Front2VOF algorithm, to compute the color function for triangular element interfaces in Front‐Tracking methods on a Cartesian mesh. ABSTRACT The calculation of the volume enclosed by curved surfaces discretized into triangular elements and a cube is of great importance in different domains, such as computer graphics ...
Jieyun Pan, Désir‐André Koffi Bi, Ahmed Basil Kottilingal, Serena Costanzo, Jiacai Lu, Yue Ling, Ruben Scardovelli, Grétar Tryggvason, Stéphane Zaleski   +8 more
wiley   +1 more source

Exposure-Aware Training for Low-Light Object Detection Without Target-Domain Data. [PDF]

J Imaging
Su Y, Lu M.
europepmc   +1 more source

Immersed Boundary Projection Method for Boundaries With Slip Velocities

International Journal for Numerical Methods in Fluids, EarlyView.
A formulation of the immersed boundary method for incompressible flow over arbitrarily‐shaped bodies with surface slip described by the Navier boundary condition is presented. The wall slip velocity and the boundary force are determined implicitly through a projection to satisfy both the boundary condition and the divergence‐free condition of the ...
Takehiro Fujii, Takeshi Omori
wiley   +1 more source