Results 31 to 40 of about 38,050 (269)

Characterization of Complex Rock Mass Discontinuities from LiDAR Point Clouds

open access: yesRemote Sensing
The distribution and development of rock mass discontinuities in 3D space control the deformation and failure characteristics of the rock mass, which in turn affect the strength, permeability, and stability of rock masses.
Yanan Liu   +3 more
doaj   +1 more source

Influence of discontinuities on the rock mass stress-strain state around excavation [PDF]

open access: yesИнженерно-строительный журнал, 2013
Adequate mathematical modeling of selvage zone and natural fracturing as well as assessment of its impact on stress-strain state – urgent problems in calculation of hydraulic tunnels.
V.N. Bukhartsev, E.N. Volkov
doaj   +1 more source

High‐Resolution MRI Revealed Different Etiology‐Specific Associations With Cerebral Infarction in Adult Moyamoya Vasculopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐resolution MRI enables detailed assessment of intracranial vessel wall pathology in moyamoya vasculopathy. We aimed to classify adult moyamoya vasculopathy etiologies using high‐resolution MRI and to examine subtype‐specific associations between high‐resolution MRI features and ischemic infarction.
Guangsong Han   +8 more
wiley   +1 more source

利用地震光照成像法研究青藏高原东南缘岩石圈间断面结构及其动力学意义

open access: yesDizhen xuebao, 2019
为了进一步认识青藏高原东南缘的构造演化等动力学问题以及该区域的深部孕震机理,本文使用位于该区域内的中国地震科学台阵探测项目的台站所记录到的远震P波波形数据,采用地震光照成像法获取了岩石圈间断面的结构,并讨论了该方法的准确性和稳定性。研究结果显示,青藏高原东南缘的岩石圈西薄东厚,其中:滇缅泰地块腾冲火山附近最薄,约为60 km,其较薄的岩石圈可能是软流圈地幔物质上涌造成的;扬子地块岩石圈厚度从四川盆地向南逐渐减薄,特别是四川盆地下方最厚,可达190 km左右;滇缅泰地块腾冲火山下方150 ...
Wei Li, Zhifeng Ding, Weijia Sun
doaj   +1 more source

Treatment of discontinuities inside Earth models: Effects on computed coseismic deformations

open access: yesEarth and Planetary Physics, 2021
In this paper, we study how coseismic deformations calculated in 1066 Earth models are affected by how the models treat Earth discontinuities. From the results of applying models 1066A (continuous) and 1066B (discontinuous), we find that the difference ...
Jie Dong   +4 more
doaj   +1 more source

Added Prognostic Value of EEG Reactivity in Comatose Patients Following Cardiac Arrest

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives To evaluate the added prognostic value of EEG reactivity for favorable outcome compared with background analysis during and after targeted temperature management (TTM). Methods Prospective observational cohort study of comatose post–cardiac arrest patients admitted to a single academic center between 2017 and 2022, all undergoing ...
Sarah Caroyer   +11 more
wiley   +1 more source

Evaluating Discontinuities in Complex Systems: Toward Quantitative Measures of Resilience

open access: yesEcology and Society, 2007
The textural discontinuity hypothesis (TDH) is based on the observation that animal body mass distributions exhibit discontinuities that may reflect the texture of the landscape available for exploitation.
Craig Stow   +2 more
doaj   +1 more source

Discontinuation of benzodiazepines [PDF]

open access: yesBritish Journal of General Practice, 2016
Following the recent clinical research article on the discontinuation of benzodiazepines, I would like to encourage my colleagues.1 I have been working in a deprived area of Derby with relatively high levels …
openaire   +2 more sources

Ofatumumab in Myelin Oligodendrocyte Glycoprotein Antibody–Associated Disease: A Comparison With Rituximab

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the efficacy and safety of ofatumumab in patients with myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD), and compare it with rituximab. Methods We conducted a single–center, observational study including 22 MOGAD patients treated with ofatumumab and 21 treated with rituximab.
Yuxin Fan   +5 more
wiley   +1 more source

The frequency spectrum of the solar-wind magnetic-field fluctuations that reside outside the strong current sheets: fast and slow solar wind

open access: yesFrontiers in Astronomy and Space Sciences
Motivated by knowledge that directional discontinuities (strong current sheets) in the solar-wind magnetic time series have dominating effects on the magnetic power spectral density of the solar wind, the question is raised as to what are the effects of ...
Joseph E. Borovsky, Charles W. Smith
doaj   +1 more source

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