Results 31 to 40 of about 2,181 (263)

Strength criterion and verification of transversely isotropic unsaturated loess based on spatial sliding surface variation

Yantu gongcheng xuebao
In order to scientifically predict the strength and deformation characteristics of large-area fill foundations, a comprehensive and systematic study is conducted on mechanical properties of transversely isotropic unsaturated remolded loess through ...
GUO Nan1 , YANG Xiaohui1, JIA Shining1, CHEN Zhenghan1, 2
doaj   +1 more source

Evaluation on the anisotropic brittleness index of shale rock using geophysical logging

Petroleum, 2023
The brittleness index plays a significant role in the hydraulic fracturing design and wellbore stability analysis of shale reservoirs. Various brittleness indices have been proposed to characterize the brittleness of shale rocks, but almost all of them ...
Junchuan Gui, Jianchun Guo, Yu Sang, Yaxi Chen, Tianshou Ma, P.G. Ranjith   +5 more
doaj   +1 more source

Modeling of fiber circumplacement around a hole using a streamline approach

Universal Journal of Mathematics and Applications, 2018
The insertion of holes into laminates can be done by producing a fiber reinforced composite plate and, subsequently, drilling the borehole. Alternatively, we can bypass the fibers around the final hole before injecting the matrix material.
Ali Kheiri Marghzar, Stefan Hartmann
doaj   +1 more source

Approximate solution for deformation problems of transversely isotropic multi-layered soils

Yantu gongcheng xuebao, 2020
This study starts with the fundamental elastic equations for transversely isotropic plane problems by dividing the soil strata into a multi-layered finite region and an infinite region using the extended Rayleigh-Ritz method.
ZHU Gui-chun 1, 2, SHI Pei-xin 1, WANG Zhan-sheng 3
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

A local homogenization approach for simulating the reinforcement effect of the fully grouted bolt in deep underground openings

International Journal of Mining Science and Technology, 2022
Fully grouted bolts are a key component of the support system for underground openings. Although considerable effort has been made in the simulation of the reinforcement effect of the fully grouted bolts on the rock masses surrounding underground ...
Dingping Xu, Xiuyang Liu, Quan Jiang, Shaojun Li, Yangyi Zhou, Shili Qiu, Fei Yan, Hong Zheng, Xiang Huang   +8 more
doaj   +1 more source

Multidimensional Profiling of MRI‐Negative Temporal Lobe Epilepsy Uncovers Distinct Phenotypes

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Although hippocampal sclerosis (TLE‐HS) represents the most frequent cause of temporal lobe epilepsy (TLE), up to 30% of patients show no lesion on visual MRI inspection (TLE‐MRIneg). These cases pose diagnostic and therapeutic challenges and are underrepresented in surgical series.
Alice Ballerini, Alessia Casarini, Niccolò Biagioli, Laura Mirandola, Daniela Ballotta, Paul Summers, Simona Scolastico, Laura Madrassi, Maurilio Genovese, Marcella Malagoli, Gaetano Cantalupo, Giada Giovannini, Matteo Pugnaghi, Niccolò Orlandi, Laura Tassi, Valeria Cuccarini, Domenico Aquino, Elena Tartara, Fulvia Palesi, Giuseppe Didato, Paolo Vitali, the 3TLE Study Group, Roberta Di Giacomo, Fabio Doniselli, Federica Mazzi, Carlo Andrea Galimberti, Claudia A. M. Gandini Wheeler‐Kingshott, Stefano Meletti, Anna Elisabetta Vaudano   +28 more
wiley   +1 more source

Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan, Marco Pitteri, Michael Foster, Sara Collorone, Sara Salama, Elisa Colato, Ferran Prados, Baris Kanber, Marios Yiannakas, Claudia A. M. Gandini Wheeler‐Kingshott, Indran Davagnanam, Frederik Barkhof, Declan Chard, Olga Ciccarelli, Ahmed Toosy   +14 more
wiley   +1 more source

Modelling Propagating Bloch Waves in Magnetoelectroelastic Phononic Structures with Kagomé Lattice Using the Improved Plane Wave Expansion

Crystals, 2020
We studied the dispersion diagram of a 2D magnetoelectroelastic phononic crystal (MPnC) with Kagomé lattice. The MPnC is composed of BaTiO3–CoFe2O4 circular scatterers embedded in a polymeric matrix.
Edson Jansen Pedrosa de Miranda, Samuel Filgueiras Rodrigues, Clodualdo Aranas, Hélio Vitor Cantanhêde da Silva, Eden Santos Silva, Gedeon Silva Reis, Antônio Ernandes Macedo Paiva, José Maria Campos Dos Santos   +7 more
doaj   +1 more source

White Matter Microstructural Abnormalities in Neonatal Onset Genetic Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Recent evidence indicates that epilepsy is associated with abnormal white matter. If seizures alter white matter, then the impact upon network function, epileptogenesis, and cognition could be pronounced in neonates undergoing rapid developmental myelination. Neonates with epilepsy due to nonstructural genetic causes provide a unique
Amanda G. Sandoval Karamian, Tianjia Zhu, Hao Huang, Shavonne L. Massey, Mark P. Fitzgerald, Darshana Parikh, Arastoo Vossough, Ingo Helbig, Nicholas S. Abend   +8 more
wiley   +1 more source