Results 21 to 30 of about 4,092 (98)

Feasibility and safety of reprocessing of intracardiac echocardiography catheters for electrophysiology procedures – a large single center experience

open access: yes, 2023
Purpose: Intra-cardiac echocardiography (ICE) has become an important tool for catheter ablation. Adoption of ICE imaging is still limited because of its prohibitively high cost.
Nekić, Andrija   +11 more
core   +1 more source

Intracavity generated visible self-reconstructing Bessel-like laser beams by thermal effect [PDF]

open access: yes, 2019
(#br)In this paper we report the intracavity realization of visible reconstructing Bessel-like beams when a thin Nd:YVO 4 crystal is inserted in a diode-pumped Pr:YLF laser at 639.5 nm. The position of the thin crystal and the intracavity power determine
Sabino Chávez-Cerda   +6 more
core   +1 more source

Efficient Continuous Wave-Laser Emission Of Pr-3+-Doped Fluorides At Room-Temperature

open access: yes, 1994
We report, to our knowledge for the first time, Continuous Wave (CW) laser emission at room temperature of Pr:LiYF4 (Pr:YLF) at six wavelengths: 522, 545, 607, 639.5, 720 and 907.4 nm.
Danger, T., Sandrock, T., Heumann, E.
core   +2 more sources

Effect of self-stratification on sediment diffusivity in channel flows and boundary layers: a study using direct numerical simulations [PDF]

open access: yesEarth Surface Dynamics, 2014
Sediment transport in nature comprises of bedload and suspended load, and precise modelling of these processes is essential for accurate sediment flux estimation.
S. Dutta, M. I. Cantero, M. H. Garcia
doaj   +1 more source

Estimating the disequilibrium in denudation rates due to divide migration at the scale of river basins [PDF]

open access: yesEarth Surface Dynamics, 2019
Basin-averaged denudation rates may locally exhibit a wide dispersion, even in areas where the topographic steady state is supposedly achieved regionally.
T. Sassolas-Serrayet   +4 more
doaj   +1 more source

A comparison of structure from motion photogrammetry and the traversing micro-erosion meter for measuring erosion on shore platforms [PDF]

open access: yesEarth Surface Dynamics, 2018
For decades researchers have used the micro-erosion meter and its successor the traversing micro-erosion meter to measure micro-scale rates of vertical erosion (downwearing) on shore platforms.
N. D. Cullen, A. K. Verma, M. C. Bourke
doaj   +1 more source

Evaluating Sand Particle Surface Smoothness Using a New Computer-Based Approach to Improve the Characterization of Macroscale Parameters

open access: yesGeotechnics, 2023
The analysis of sands, and the foundation systems with which they interact, are largely dependent on macroscale behavioral parameters that represent the aggregated response of several microscale characteristics. This research paper examines the influence
Anthony Tessari, Mark Muszynski
doaj   +1 more source

High sensitivity of palladium on porous silicon MSM photodetector [PDF]

open access: yes, 2011
In this work, the nanocrystalline porous silicon (PS) is prepared through the simple electrochemical etching of n-type Si (1 0 0) under the illumination of a 100 W incandescent white light.
A.F. Abd Rahim   +5 more
core   +1 more source

A probabilistic framework for the cover effect in bedrock erosion [PDF]

open access: yesEarth Surface Dynamics, 2017
The cover effect in fluvial bedrock erosion is a major control on bedrock channel morphology and long-term channel dynamics. Here, we suggest a probabilistic framework for the description of the cover effect that can be applied to field, laboratory ...
J. M. Turowski, R. Hodge
doaj   +1 more source

Mechanical Behavior of Fiber-Reinforced Soils under Undrained Triaxial Loading Conditions

open access: yesGeotechnics, 2023
The design of fiber-reinforced soil structures, such as embankments and pavements, can be carried out using the results of unconsolidated, undrained triaxial compression tests conducted on specimens at their “as-compacted” water content and analyzed in ...
Evangelos D. Evangelou   +3 more
doaj   +1 more source

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