Results 41 to 50 of about 6,051,770 (231)

FDEM simulation for granular materials based on exact scaling and coarse granulation

open access: yesYantu gongcheng xuebao
The particle materials are characterized by discontinuity and dispersion, so they face great computational pressure in numerical simulation. The exact scaling criterion and coarse-grained method are introduced into the combined finite-discrete element ...
WANG Jingzhou 1, MA Gang 1, 2, 3, ZHAO Tingting 4, ZHANG Wenyu 1, HU Jinfang 2, ZHOU Wei 1, 2, 3
doaj   +1 more source

Probing noncommutative theories with quantum optical experiments

open access: yes, 2017
One of the major difficulties of modern science underlies at the unification of general relativity and quantum mechanics. Different approaches towards such theory have been proposed. Noncommutative theories serve as the root of almost all such approaches.
Ali, Ahmed Farag   +6 more
core   +2 more sources

A Micromechanical Theory of Flow in Pulmonary Alveolar Sheet

open access: yesComputer Modeling in Engineering & Sciences, 2002
In this paper we reexamine the sheet-flow model proposed by Fung and Sobin (1969) for blood flow in capillaries in the pulmonary alveoli from micromechanical point of view. The pulmonary alveolar capillary is assumed to be two parallel membranes connected by periodic tissue posts.
Zhong, Z., Dai, Y., Mei, CC, Tong, P.
openaire   +2 more sources

Correlative Electron Paramagnetic Resonance Imaging and Atomic Force Microscopy of Lithium Deposited on Copper

open access: yesChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The correlation of a spectroscopic (EPRI) and microscopic (AFM) technique is demonstrated for a sample of Li deposited on Cu. Areas of different morphology were analysed. The techniques complement each other's length scales as well as the information obtained from the sample.
Beatrice Wolff   +5 more
wiley   +1 more source

Position and Mode Dependent Optical Detection Back-Action in Cantilever Beam Resonators [PDF]

open access: yes, 2017
Optical detection back-action in cantilever resonant or static detection presents a challenge when striving for state-of-the-art performance. The origin and possible routes for minimizing optical back-action have received little attention in literature ...
Boisen, Anja   +5 more
core   +3 more sources

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

open access: yesDeep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Decoherence and definite outcomes [PDF]

open access: yes, 2012
This thesis has three aims: (1) to clarify in detail the relation between the decoherence mechanism and the problem of definite outcomes, (2) to dispel common misconceptions about the measurement problem in quantum mechanics, and (3) to present some ...
Colanero, Klaus
core   +1 more source

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

Modeling of Spall Fracture in Brittle Solids

open access: yesEngineering Transactions, 1997
This is a synthetic and critical review of the selected theories of brittle spall fracture. Since the main body of research clone on spalling can actually be credited to a few research institutions, the papers selected for this overview are classified ...
M. Basista
doaj  

Adhesional Friction Theory of Micromechanical Surface Contact

open access: yesIOSR Journal of Engineering, 2013
When two rough surfaces come in contact, tip of asperities would adhere and produces resistance as friction during sliding. First Bowden and Tabor has developed adhesional friction theory based on concept of cold welding of asperity tip through plastic deformation and flow.
openaire   +1 more source

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