scholarly journals A study of crack generation at loading/unloading process in wheel cleaving (Circular/half-penny crack generation mechanisms)

2021 ◽  
Author(s):  
Kentaro IMAI ◽  
Tomoki ASARI ◽  
Yuichiro MATSUMOTO ◽  
Souta MATSUSAKA ◽  
Hirofumi HIDAI ◽  
...  
Keyword(s):  
Crack Generation ◽  
Generation Mechanisms

Dynamics and generation mechanisms of mesoscale structures in tokamak edge plasmas

2008 ◽  
Vol 15 (5) ◽  
pp. 055909 ◽  
Author(s):  
S. I. Krasheninnikov ◽  
A. I. Smolyakov
Keyword(s):  
Mesoscale Structures ◽  
Tokamak Edge ◽  
Edge Plasmas ◽  
Generation Mechanisms

scholarly journals Dislocation generation mechanisms in heavily boron-doped diamond epilayers

2021 ◽  
Vol 118 (5) ◽  
pp. 052108
Author(s):  
D. Araujo ◽  
F. Lloret ◽  
G. Alba ◽  
M. P. Alegre ◽  
M. P. Villar
Keyword(s):  
Boron Doped Diamond ◽  
Dislocation Generation ◽  
Boron Doped ◽  
Generation Mechanisms

scholarly journals On the generation of internal waves by river plumes in subcritical initial conditions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
R. Mendes ◽  
J. C. B. da Silva ◽  
J. M. Magalhaes ◽  
B. St-Denis ◽  
D. Bourgault ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Internal Waves ◽  
Coastal Waters ◽  
Initial Conditions ◽  
Spatial Scales ◽  
River Plumes ◽  
Wide Range ◽  
Near Shore ◽  
Generation Mechanisms ◽  
Douro River

AbstractInternal waves (IWs) in the ocean span across a wide range of time and spatial scales and are now acknowledged as important sources of turbulence and mixing, with the largest observations having 200 m in amplitude and vertical velocities close to 0.5 m s−1. Their origin is mostly tidal, but an increasing number of non-tidal generation mechanisms have also been observed. For instance, river plumes provide horizontally propagating density fronts, which were observed to generate IWs when transitioning from supercritical to subcritical flow. In this study, satellite imagery and autonomous underwater measurements are combined with numerical modeling to investigate IW generation from an initial subcritical density front originating at the Douro River plume (western Iberian coast). These unprecedented results may have important implications in near-shore dynamics since that suggest that rivers of moderate flow may play an important role in IW generation between fresh riverine and coastal waters.

scholarly journals Weighted mixed-effects dose–response models for tables of correlated contrasts

2021 ◽  
Vol 21 (2) ◽  
pp. 320-347
Author(s):  
Nicola Orsini
Keyword(s):  
Dose Response ◽  
Response Pattern ◽  
Mixed Effects ◽  
Data Generation ◽  
Measures Of Association ◽  
Response Models ◽  
Response Data ◽  
Hazard Ratios ◽  
Health Related ◽  
Generation Mechanisms

Recognizing a dose–response pattern based on heterogeneous tables of contrasts is hard. Specification of a statistical model that can consider the possible dose–response data-generating mechanism, including its variation across studies, is crucial for statistical inference. The aim of this article is to increase the understanding of mixed-effects dose–response models suitable for tables of correlated estimates. One can use the command drmeta with additive (mean difference) and multiplicative (odds ratios, hazard ratios) measures of association. The postestimation command drmeta_graph greatly facilitates the visualization of predicted average and study-specific dose–response relationships. I illustrate applications of the drmeta command with regression splines in experimental and observational data based on nonlinear and random-effects data-generation mechanisms that can be encountered in health-related sciences.

Correction to "A comparative analysis of substrate current generation mechanisms in tunneling mos capacitors"

2002 ◽  
Vol 49 (10) ◽  
pp. 1844-1844
Author(s):  
P. Palestri ◽  
A.D. Serra ◽  
L. Selmi ◽  
M. Pavesi ◽  
P.L. Rigolli ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Current Generation ◽  
Mos Capacitors ◽  
Substrate Current ◽  
Generation Mechanisms

scholarly journals Influence of Anvil Shape of Surface Crack Generation in Large Hot Forging Process

2014 ◽  
Vol 81 ◽  
pp. 480-485 ◽  
Author(s):  
Takefumi Arikawa ◽  
Daisuke Yamabe ◽  
Hideki Kakimoto
Keyword(s):  
Surface Crack ◽  
Hot Forging ◽  
Forging Process ◽  
Crack Generation ◽  
Hot Forging Process

scholarly journals Distinct EEG seizure patterns reflect different seizure generation mechanisms

2015 ◽  
Vol 113 (7) ◽  
pp. 2840-2844 ◽  
Author(s):  
Pariya Salami ◽  
Maxime Lévesque ◽  
Jean Gotman ◽  
Massimo Avoli
Keyword(s):  
High Frequency ◽  
Channel Blocker ◽  
Seizure Activity ◽  
Low Voltage ◽  
High Frequency Oscillation ◽  
Seizure Onset ◽  
Frequency Oscillation ◽  
Oscillation Analysis ◽  
Pilocarpine Model ◽  
Generation Mechanisms

Low-voltage fast (LVF)- and hypersynchronous (HYP)-seizure onset patterns can be recognized in the EEG of epileptic animals and patients with temporal lobe epilepsy. Ripples (80–200 Hz) and fast ripples (250–500 Hz) have been linked to each pattern, with ripples predominating during LVF seizures and fast ripples predominating during HYP seizures in the rat pilocarpine model. This evidence led us to hypothesize that these two seizure-onset patterns reflect the contribution of neural networks with distinct transmitter signaling characteristics. Here, we tested this hypothesis by analyzing the seizure activity induced with the K+ channel blocker 4-aminopyridine (4AP, 4–5 mg/kg ip), which enhances both glutamatergic and GABAergic transmission, or the GABAA receptor antagonist picrotoxin (3–5 mg/kg ip); rats were implanted with electrodes in the hippocampus, the entorhinal cortex, and the subiculum. We found that LVF onset occurred in 82% of 4AP-induced seizures whereas seizures after picrotoxin were always HYP. In addition, high-frequency oscillation analysis revealed that 4AP-induced LVF seizures were associated with higher ripple rates compared with fast ripples ( P < 0.05), whereas picrotoxin-induced seizures contained higher rates of fast ripples compared with ripples ( P < 0.05). These results support the hypothesis that two distinct patterns of seizure onset result from different pathophysiological mechanisms.

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