Results 71 to 80 of about 336,762 (252)

Study on the Influence of Notched Empty Hole Parameters on Directional Fracture Blasting Effect

open access: yesBuildings
Placing empty holes between charging holes is widely used in blasting engineering to achieve directional fracture blasting. Studies have shown that the presence of a notch along the empty hole wall enhances stress concentration and supports improved ...
Xiantang Zhang   +8 more
doaj   +1 more source

Developmental and functional effects of steroid hormones on the neuroendocrine axis and spinal cord [PDF]

open access: yes, 2016
This review highlights the principal effects of steroid hormones at central and peripheral levels in the neuroendocrine axis. The data discussed highlight the principal role of oestrogens and testosterone in hormonal programming in relation to sexual ...
Gonzalez Deniselle, Maria Claudia   +4 more
core   +2 more sources

Luteolin Inhibits Breast Cancer Development and Progression In Vitro and In Vivo by Suppressing Notch Signaling and Regulating MiRNAs

open access: yesCellular Physiology and Biochemistry, 2015
Background/Aims: This study aims to investigate the effect of Luteolin on breast cancer in vitro and in vivo and the interaction between miRNAs and Notch signaling after Luteolin intervention, and illustrates the possible underlying mechanism and ...
Da-Wei Sun   +11 more
doaj   +1 more source

Experimental Study on the Effect of Offset Notch on Fracture Properties of Rock under Three-Point Bending Beam

open access: yesAdvances in Materials Science and Engineering, 2020
To investigate the effects of offset notch on the fracture properties of rock beam under bending load, granite beam specimens with “one single offset notch” and “central and offset double notches” are made.
Qifeng Guo   +3 more
doaj   +1 more source

Implementation and Investigation of a Compact Circular Wide Slot UWB Antenna with Dual Notched Band Characteristics using Stepped Impedance Resonators [PDF]

open access: yes, 2012
A coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with dual notched band characteristics is presented in this paper. The circular wide slot and circular radiation patch are utilized to broaden the impedance bandwidth of the UWB antenna.
Tao Jiang, Wenxing Li, Yingsong Li
core   +1 more source

High-accuracy Geant4 simulation and semi-analytical modeling of nuclear resonance fluorescence

open access: yes, 2018
Nuclear resonance fluorescence (NRF) is a photonuclear interaction that enables highly isotope-specific measurements in both pure and applied physics scenarios. High-accuracy design and analysis of NRF measurements in complex geometries is aided by Monte
Danagoulian, Areg   +2 more
core   +2 more sources

Transient damage spreading and anomalous scaling in mortar crack surfaces [PDF]

open access: yes, 2008
The scaling properties of a post-mortem mortar crack surface are investigated. The root mean square of the height fluctuations is found to obey anomalous scaling properties, but with three exponents, two of them characterizing the local roughness (zeta ...
Bouchaud, Elisabeth   +3 more
core   +1 more source

Local lung hypoxia determines epithelial fate decisions during alveolar regeneration. [PDF]

open access: yes, 2017
After influenza infection, lineage-negative epithelial progenitors (LNEPs) exhibit a binary response to reconstitute epithelial barriers: activating a Notch-dependent ΔNp63/cytokeratin 5 (Krt5) remodelling program or differentiating into alveolar type II
Brumwell, Alexis N   +13 more
core   +1 more source

Compression strength failure mechanisms in unidirectional composite laminates containing a hole [PDF]

open access: yes
Experiments on graphite-epoxy laminated plates containing unloaded small holes show that these laminates are notch insensitive. That is, the uniaxial strength of these laminates with small holes exceeds the strength predicted by a point stress criterion ...
Johnson, Eric R.
core   +1 more source

Notch effects in uniaxial tension specimens [PDF]

open access: yes, 1979
Results of a literature survey on the effect of notches on the time-dependent failure of uniaxial tension specimens at elevated temperatures are presented. Particular attention is paid to the failure of notched specimens containing weldments.
openaire   +2 more sources

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