Results 61 to 70 of about 643,576 (312)

Erosion of metals by multiple impacts with water [PDF]

, 1971
Investigation determines - relation between impact velocity and minimum number of impacts producing visible erosion, relation between high frequency fatigue stresses and number of cycles to failure, water-hammer stresses relation to high frequency ...
Rudy, S. L., Thiruvengadam, A.
core   +1 more source

Baseline Regional Cholinergic Denervation Predicts Cognitive Trajectories in Moderate Parkinson Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown, Giulia Carli, Prabesh Kanel, Stiven Roytman, Jaimie Barr, Nicolaas I. Bohnen, Roger L. Albin   +6 more
wiley   +1 more source

Predictive Modelling of Erosion Behaviour in Polymeric and Composite Materials Using Machine Learning

Modelling
Accurate prediction of erosion rates in polymeric and composite materials is essential for their effective design and maintenance in diverse industrial environments. This study presents a predictive modelling framework developed using the JMP Pro machine
Ali Al-Darraji, Christopher Lagat, Ibukun Oluwoye   +2 more
doaj   +1 more source

Assessing the Effects of DEM Uncertainty on Erosion Rate Estimation in an Agricultural Field [PDF]

, 2012
The slope length and steepness (LS) factor is one of the factors in the Revised Universal Soil Loss Equation (RUSLE) needed to estimate average annual erosion rate. The LS factor is often derived from digital elevation models (DEM).
Aziz, Samsuzana, Kaleita, Amy, Kaleita, Amy, Karkee, Manoj, Steward, Brian, Steward, Brian   +5 more
core   +3 more sources

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp, Ludwig Karrasch, Helena Breitenstein, Andreas Straube, Katharina Kamm   +4 more
wiley   +1 more source

ON EROSION PROCESS OF COHESIVE SEDIMENT AND EROSION RATE FORMULA

PROCEEDINGS OF HYDRAULIC ENGINEERING, 2003
Erosion process of soft cohesive material which deposited naturally on a river bed is the objective of the present paper. Extensive series of experiments, the condition of which were set systematically, were conducted to evaluate the erosion rate by running water in a closed conduit. The test sample was the mixture of silica sand. clay and water.
Masato SEKINE, Ken-ichiro NISIMORI, Kenta FUJIO, Yasuhiro KATAGIRI   +3 more
openaire   +2 more sources

Centennial- to millennial-scale hard rock erosion rates deduced from luminescence-depth profiles [PDF]

, 2018
The measurement of erosion and weathering rates in different geomorphic settings and over diverse temporal and spatial scales is fundamental to the quantification of rates and patterns of earth surface processes. A knowledge of the rates of these surface
Egholm, David, Guralnik, Benny, Jain, Mayank, Liu, Jinfeng, Murray, Andrew, Paris, Richard B., Sohbati, Reza   +6 more
core   +2 more sources

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children With Juvenile Idiopathic Arthritis

Arthritis Care &Research, EarlyView.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez, Pinar Ozge Avar‐Aydin, Kelly Rogers, Daniel J. Lovell, Jennifer Huggins, Alexei Grom, Hermine I. Brunner, Grant S. Schulert, Sheila T. Angeles‐Han, Mekibib Altaye, Amy Cassedy, Arthur B. Meyers, Tracy V. Ting   +12 more
wiley   +1 more source

Some reflections on a model to predict the erosion rate of the passive film on pure metals [PDF]

, 2009
A model to predict the erosion rate of the passive films on metals is proposed. The model investigates the effect of eroded particles on a metal on which a passive (oxide) film has formed. To date, many of the existing erosion models have concentrated on
Abdelrahman, Shehab, Stack, Margaret
core  

Erosion dynamics of a wet granular medium

, 2012
Liquid may give strong cohesion properties to a granular medium, and confer a solid-like behavior. We study the erosion of a fixed circular aggregate of wet granular matter subjected to a flow of dry grains inside a half-filled rotating drum.
Jop, Pierre, Lefebvre, Gautier
core   +2 more sources