Results 21 to 30 of about 325,875 (165)

Improving the wall thinning of the transition shoulder with anti-wedge upset rolling in cross wedge rolling hollow parts

open access: yes工程科学学报, 2016
Wall thinning occurs at transition shoulders in cross wedge rolling (CWR) hollow parts without a mandrel, which will reduce the mechanical strength of the parts, so improving the wall thickness of the shoulder must be resolved.
YANG Cui-ping   +2 more
doaj   +1 more source

Effect of Anodization Parameters on the Surface Morphology and Photoelectrochemical Properties of TiO2 Nanotubes

open access: yesInternational Journal of Electrochemical Science, 2017
Titanium sheets are anodized to prepare titanium dioxide nanotubes (TiO2 NTs) with varying chemical polishing times, anodizing voltages, anodizing times and NH4F electrolyte concentrations. The surface morphology of the TiO2 NTs is observed by a Scanning
Shenghan Zhang   +3 more
doaj   +1 more source

Optimal Force–Time Integral for Pulmonary Vein Isolation According to Anatomical Wall Thickness Under the Ablation Line

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundLow contact force and force–time integral (FTI) during catheter ablation are associated with ineffective lesion formation, whereas excessively high contact force and FTI may increase the risk of complications.
Akio Chikata   +11 more
doaj   +1 more source

Wall thickness variation effect on tank’s shape behaviour under critical harmonic settlement

open access: yesAlexandria Engineering Journal, 2016
The purpose of this study was to investigate the effect of wall thickness variation on tank’s wall buckling mode under the effect of critical harmonic settlement for open top tanks.
Ahmed Shamel Fahmy, Amr Mohamed Khalil
doaj   +1 more source

Design Optimization of Key Structural Parameters for Tension Measuring Rollers in Temper Mill Units

open access: yesMetals
During the temper rolling process, scratch defects on the lower surface of the steel strip caused by the tension measuring roller are a critical issue that affects the resulting product quality.
Ji Zhang   +4 more
doaj   +1 more source

Spacer Thickness and Temperature Dependences of the Interlayer Exchange Coupling in a Co/Pt/Co Three-Layer Structure

open access: yesMagnetochemistry, 2023
Domain wall mobility as a function of nonmagnetic interlayer thickness and temperature was studied in ultrathin exchange-coupled ferromagnetic layers using magneto-optic Kerr microscopy.
V. S. Gornakov   +3 more
doaj   +1 more source

Gallbladder wall thickness distortion by ascites [PDF]

open access: yesAmerican Journal of Roentgenology, 1981
Eight patients with sonographically demonstrated ascites adjacent to or surrounding a gallbladder wall of normal thickness are described. In two patients, improper transducer placement or angulation caused apparent gallbladder wall thickening. Two in vitro experiments, one with a balloon phantom and the other with a resected gallbladder, confirmed that
B J, Lewandowski, F, Winsberg
openaire   +2 more sources

Quality Performance Evaluation of Thin Walled PLA 3D Printed Parts Using the Taguchi Method and Grey Relational Analysis

open access: yesJournal of Manufacturing and Materials Processing, 2020
This paper investigates the quality performance of FDM 3D printed models with thin walls. The design of experiments method (DOE) was used and nine models of the same size were fabricated in a low-cost 3D printer using polylactic acid (PLA) material.
Kyriaki-Evangelia Aslani   +4 more
doaj   +1 more source

Increased Bladder Wall Thickness in Diabetic and Nondiabetic Women With Overactive Bladder [PDF]

open access: yesInternational Neurourology Journal, 2013
Purpose: Bladder wall thickness has been reported to be associated with overactive bladder (OAB) in women. Diabetic women have an increased risk for OAB syndrome and may have an increased risk for bladder wall thickness.
Hakkı Uzun   +7 more
doaj   +1 more source

A study of the maxillary sinus lateral wall thickness using cone-beam CT

open access: yes口腔疾病防治, 2021
Objective To investigate the relationship between the thickness of the lateral wall of the maxillary sinus and patient age and sex at different tooth sites to provide a reference for sinus floor elevations.
WANG Yanlin, SUN Xiaojun
doaj   +1 more source

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