Results 71 to 80 of about 281,341 (190)

A Real-Time Inverted Velocity Model for Fault Detection in Deep-Buried Hard Rock Tunnels Based on a Microseismic Monitoring System

Buildings
Microseismic monitoring is an effective and widely used technology for dynamic fault disaster early warning and prevention in deep-buried hard rock tunnels.
Houlin Xie, Bingrui Chen, Qian Liu, Yaxun Xiao, Liu Liu, Xinhao Zhu, Pengxiang Li   +6 more
doaj   +1 more source

Numerical Inversion for the Multiple Fractional Orders in the Multiterm TFDE

Advances in Mathematical Physics, 2017
The fractional order in a fractional diffusion model is a key parameter which characterizes the anomalous diffusion behaviors. This paper deals with an inverse problem of determining the multiple fractional orders in the multiterm time-fractional ...
Chunlong Sun, Gongsheng Li, Xianzheng Jia   +2 more
doaj   +1 more source

Efficient pricing options under regime switching [PDF]

In the paper, we propose two new efficient methods for pricing barrier option in wide classes of Lévy processes with/without regime switching. Both methods are based on the numerical Laplace transform inversion formulae and the Fast Wiener-Hopf ...
Oleg Kudryavtsev
core  

Numerical inversion and sensitivity analysis of deformation modulus for deep rock mass

Meitan xuebao
Rock deformation modulus is one of the key parameters for the design and construction of underground rock engineering. Obtaining accurate rock deformation modulus is crucial for a comprehensive analysis of the deformation behavior of the surrounding rock
Liyuan LIU, Yifan LUO, Tao WANG, Xianteng SUN, Jiong WANG   +4 more
doaj   +1 more source

Numerical inversion of the Laplace transform

Electronics Letters, 1966
In the numerical evaluation of the inverse Laplace transform, the result is marred by Gibbs oscillations in the same way as the inverse complex Fourier transform. Attention is drawn to means by which the representation can be improved and the numerical work eased.
N. Mullineux, J.R. Reed
openaire   +1 more source

Tsunami waveform inversion by numerical finite-elements Green’s functions [PDF]

Natural Hazards and Earth System Sciences, 2001
During the last few years, the steady increase in the quantity and quality of the data concerning tsunamis has led to an increasing interest in the inversion problem for tsunami data.
A. Piatanesi, S. Tinti, G. Pagnoni
doaj  

On an origin of numerical diffusion: Violation of invariance under space-time inversion [PDF]

The invariant properties of the convection equation du/dt + adu/dx = 0 (where d is the partial differential operator) with respect to spatial reflection, time reversal, and space-time inversion are studied.
Chang, Sin-Chung
core   +1 more source

Regular and Estimable Inverse Demand Systems: A Distance Function Approach [PDF]

To be useful for realistic policy simulation in an environment of rapid structural change, inverse demand systems must remain regular over substantial variations in quantities.
Gary K.K. Wong, Keith R. McLaren
core  

A New Configuration of Circular Stepped Tubes Reinforced with External Stiffeners to Improve Energy Absorption Characteristics Under Axial Impact

Latin American Journal of Solids and Structures
State-of-the art studies of impact crushing circular stepped tube (inversion tube) introduce various approaches to improve the energy absorption capacities. Adding external longitudinal stiffeners on the circular stepped tubes is a new approach that have
M.S. Zahran, P. Xue, M.S. Esa, M.M. Abdelwahab, Guoxing Lu   +4 more
doaj   +1 more source

Computing the exact distribution of the Bartlett's test statistic by numerical inversion of its characteristic function. [PDF]

J Appl Stat, 2020
Witkovský V.
europepmc   +1 more source