Results 101 to 110 of about 1,629,572 (316)

Which Design and Biomaterial Factors Affect Clinical Wear Performance of Total Disc Replacements? A Systematic Review [PDF]

open access: yes, 2014
Background Total disc replacement was clinically introduced to reduce pain and preserve segmental motion of the lumbar and cervical spine. Previous case studies have reported on the wear and adverse local tissue reactions around artificial prostheses ...
Alexander, Dominik D.   +4 more
core   +2 more sources

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

Linguistic analysis of the valence, arousal and dominance of auditory hallucinations and internal thoughts in schizophrenia: Implications for psychoeducation and CBT

open access: yesCogent Psychology, 2019
70% of patients with schizophrenia suffer from auditory verbal hallucinations (AVH) which are frequently described as distressing and disabling.
Gordon D Turkington   +2 more
doaj   +1 more source

A Peroxiredoxin Promotes H2O2 Signaling and Oxidative Stress Resistance by Oxidizing a Thioredoxin Family Protein

open access: yesCell Reports, 2013
H2O2 can cause oxidative damage associated with age-related diseases such as diabetes and cancer but is also used to initiate diverse responses, including increased antioxidant gene expression.
Jonathon D. Brown   +5 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Current-carrying friction of Ag coatings by additive manufacturing: uncovering the role of electric current

open access: yesMaterials Research Letters
Ag coatings by additive manufacturing are a representative high-performance electrical contact materials. Here, an appropriate current of 2 A is introduced during the friction process to optimize the current-carrying friction behavior and anti-wear ...
Jiebin Du   +4 more
doaj   +1 more source

Rocket engine Patent [PDF]

open access: yes, 1964
Metal ion rocket engine ...
Dangle, E. E.   +2 more
core   +1 more source

Influence of pre-existing martensite on the wear resistance of metastable austenitic stainless steels [PDF]

open access: yes, 2016
The effect of pre-existing martensite on the sliding wear behavior of a commercial metastable austenitic stainless steel was investigated. Two different steel conditions were considered: annealed (with a fully austenitic microstructure) and cold rolled ...
Fargas Ribas, Gemma   +2 more
core   +2 more sources

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

open access: yesAdvanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi   +2 more
wiley   +1 more source

Think Drink: Feasibility trial of a multicomponent hydration care intervention for people living with dementia in care homes

open access: yesClinical Nutrition Open Science
Summary: Background and aim: People with dementia, and particularly those living in care homes are at risk of suboptimal hydration and dehydration.
Glenda Anne Cook   +2 more
doaj   +1 more source

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