Results 51 to 60 of about 345,392 (276)

Effective Assessment of Blast-Induced Ground Vibration Using an Optimized Random Forest Model Based on a Harris Hawks Optimization Algorithm

Applied Sciences, 2020
Most mines choose the drilling and blasting method which has the characteristics of being a cheap and efficient method to fragment rock mass, but blast-induced ground vibration damages the surrounding rock mass and structure and is a drawback. To predict,
Zhi Yu, Xiuzhi Shi, Jian Zhou, Xin Chen, Xianyang Qiu   +4 more
doaj   +1 more source

Fluctuations, Jamming, and Yielding for a Driven Probe Particle in Disordered Disk Assemblies

, 2009
Using numerical simulations we examine the velocity fluctuations of a probe particle driven with constant force through a two-dimensional disordered assembly of disks which has a well-defined jamming point J at a density of \phi_J=0.843.
Reichhardt, C., Reichhardt, C. J. Olson
core   +2 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

Prediction of Ground Vibration Velocity Induced by Long Hole Blasting Using a Particle Swarm Optimization Algorithm

Applied Sciences
Obtaining accurate basic parameters for long hole blasting is challenging, and the resulting vibration damage significantly impacts key surface facilities. Predicting ground vibration velocity accurately and mitigating the harmful effects of blasting are
Lianku Xie, Qinglei Yu, Jiandong Liu, Chunping Wu, Guang Zhang   +4 more
doaj   +1 more source

Equivalent continuous and discrete realizations of Levy flights: Model of one-dimensional motion of inertial particle

, 2012
The paper is devoted to the relationship between the continuous Markovian description of Levy flights developed previously and their equivalent representation in terms of discrete steps of a wandering particle, a certain generalization of continuous time
Bouchaud, Brockmann, Brockmann, Brockmann, Buldyrev, Chechkin, Chechkin, Chechkin, Chechkin, Deutsch, Dybiec, Dybiec, Dybiec, Escande, Fogedby, Fogedby, Gardiner, Honkonen, Ihor Lubashevsky, Imkeller, Imkeller, Jespersen, Konno, Koren, Koren, Lifshitz, Lubashevsky, Lubashevsky, Lubashevsky, Lubashevsky, Lubashevsky, Lubashevsky, Mahnke, Mategna, Metzler, Metzler, Montroll, Montroll, Schenzle, Schertzer, Sokolov, Solomon, Srokowski, Srokowski, Srokowski, Stickler, Stickler, Takayasu, Venkataramani, Weron, Yanovsky   +50 more
core   +1 more source

Kinetic-Ion Simulations Addressing Whether Ion Trapping Inflates Stimulated Brillouin Backscattering Reflectivities [PDF]

, 2007
An investigation of the possible inflation of stimulated Brillouin backscattering (SBS) due to ion kinetic effects is presented using electromagnetic particle simulations and integrations of three-wave coupled-mode equations with linear and nonlinear ...
B. I. Cohen, Birdsall C. K., Divol L., E. A. Williams, H. X. Vu, Kruer W. L.   +5 more
core   +2 more sources

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Giant negative mobility of inertial particles caused by the periodic potential in steady laminar flows

, 2018
Transport of an inertial particle advected by a two-dimensional steady laminar flow is numerically investigated in the presences of a constant force and a periodic potential.
Ai, Bao-quan, He, Ya-feng, Zhong, Wei-rong, Zhu, Wei-jing   +3 more
core   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source

Near-field vibrations in railway track on soft subgrades for semi high-speed trains

Transportation Engineering, 2023
For the development of a high-speed rail network in urbanised areas, ground vibration and associated damage to surrounding structures are major concerns.
K.S. Beena, M.N. Sandeep, Buddhima Indraratna, Rakesh Sai Malisetty   +3 more
doaj   +1 more source