Results 21 to 30 of about 979,356 (312)

Experimental investigations on process parameters for manufacturing of antenna reflectors using vacuum infusion process

open access: yesSPE Polymers, 2021
Carbon fiber reinforcement polymers (CFRPs) are commonly used in aerospace, automobile, and sports industries due to its superior properties compared to conventional metal and alloys.
Tushar Gajjar   +3 more
doaj   +1 more source

Fatigue behavior of unidirectional fiber‐reinforced pultruded composites with high volume fiber fraction [PDF]

open access: yes, 2023
Pultrusion is a high-volume manufacturing process for fiber-reinforced polymer (FRP) composites ensuring high strength and quality products. However, research studies are very limited on the fatigue behavior of these products, especially with ...
Omar Alajarmeh   +17 more
core   +1 more source

Large probe arrays for measuring mean and time dependent local oil volume fraction and local oil velocity component distributions in inclined oil-in-water flows [PDF]

open access: yes, 2013
Arrays of dual-sensor and four-sensor needle conductance probes have been used to measure the mean and time dependent local properties of upward inclined, bubbly oil-in-water flows (also known as dispersed oil-in-water flows) in a 153mm diameter pipe ...
Lucas, Gary, Zhao, X.
core   +1 more source

Synthetic Myocardial Extracellular Volume Fraction

open access: yesJACC: Cardiovascular Imaging, 2017
Myocardial extracellular volume fraction (ECV) assessed by cardiac magnetic resonance (CMR) estimates the proportion of myocardial extracellular space relative to its cellular component. Conventionally, ECV calculation requires knowledge of the patient’s hematocrit (Hct). Treibel et al. [(1)][1]
Fent, G.J.   +9 more
openaire   +5 more sources

On measuring colloidal volume fractions [PDF]

open access: yesSoft Matter, 2012
11 ...
Poon, Wilson C. K.   +2 more
openaire   +2 more sources

Effect of shallow straight-joint braided fabric geometrical parameters on fiber volume fraction

open access: yesScience and Engineering of Composite Materials, 2012
This research paper establishes the relationship between fabric parameters and fiber volume fraction through analyzing the representative unit cell of the 2.5D shallow straight-joint preform.
Guan Tianru   +3 more
doaj   +1 more source

Application of X-ray Microtomography to Quantify the Liquid Fraction of M2 Steel for Semi-solid Forming process [PDF]

open access: yes, 2013
Thixoforging, one variant of semi-solid metal processing in which the metallic alloys are processed at low liquid fraction (0.1< Fl < 0.3), is used to produce complex parts with high mechanical properties.
GU, Guochao   +4 more
core   +1 more source

Experimental study on effect of oxygen volume fraction on spontaneous combustion characteristics of coal

open access: yesMeikuang Anquan, 2023
In order to study the effect of oxygen volume fraction on the spontaneous combustion of coal oxidation at low temperature, the non-adhering coal from a mine in Inner Mongolia was taken as the research object.
DING Xuqin, ZHANG Leilin
doaj   +1 more source

Prevalence and significance of alterations in cardiac structure and function in patients with heart failure and a preserved ejection fraction [PDF]

open access: yes, 2011
<p><b>Background:</b> The purpose of this study was to examine the prevalence of abnormalities in cardiac structure and function present in patients with heart failure and a preserved ejection fraction (HFPEF) and to determine whether ...
Michel Komajda   +18 more
core   +1 more source

Influence of Particle Sizes and Volume Fractions on Fatigue Crack Growth Rates of Aerospace Al-Alloys Composites [PDF]

open access: yesArchives of Metallurgy and Materials
Recently, the need to develop fuel efficient transport systems has led to the development of a range of materials of low density, high stiffness and high strength each can be made at a reasonable cost.
I. Uygur
doaj   +1 more source

Home - About - Disclaimer - Privacy