Results 91 to 100 of about 15,963,312 (351)

The effect of quenching and defects size on the HCF behaviour of Boron steel [PDF]

open access: yes, 2014
This work investigates the effect of natural and artificial surface defects and quenching on the fatigue strength of a Boron steel (22MnB5). A vast experimental campaign has been undertaken to study the high cycle fatigue behaviour and more specifically ...
ABRIVARD, Benjamin   +4 more
core   +6 more sources

Complementarity of Long‐Reads and Optical Mapping in Parkinson's Disease for Structural Variants

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Long‐read sequencing and optical genome mapping technologies have the ability to detect large and complex structural variants. This has led to the discovery of novel pathogenic variants in neurodegenerative movement disorders. Thus, we aimed to systematically compare the SV detection capabilities of OGM and ONT in Parkinson's disease.
André Fienemann   +17 more
wiley   +1 more source

Comparisons of modified Vasco X-2 and AISI 9310 gear steels [PDF]

open access: yes
Endurance tests were conducted with four groups of spur gears manufactured from three heats of consumable electrode vacuum melted (CVM) modified Vasco X-2. Endurance tests were also conducted with gears manufactured from CVM AISI 9310. Bench type rolling
Townsend, D. P., Zaretsky, E. V.
core   +1 more source

Some remarks on particle size effects on the abrasion of a range of Fe based alloys [PDF]

open access: yes, 2010
The low-stress three body abrasion behaviour of a range of steels was investigated. The tests were carried out in a rubber wheel tester (according to ASTM G65-94, reapproved in 2000) at room temperature.
Almeraya-Calderon, F.   +4 more
core   +1 more source

Validity of a Wearable Digital Insole for Assessing Gait ON and OFF in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Gait impairment is a distinctive symptom of Parkinson's disease that negatively impact mobility. We assessed the validity of wearable digital insoles against a validated reference gait analysis system for measuring select gait characteristics in patients with Parkinson's disease. Methods A comparative analysis between digital insoles
Deborah A. Hall   +16 more
wiley   +1 more source

Hardness behavior of binary and ternary niobium alloys at 77 and 300 K [PDF]

open access: yes
The effects of alloy additions of zirconium, hafnium, molybdenum, tungsten, rhenium, ruthenium, osmium, rhodium, and iridium on the hardness of niobium was determined.
Stephens, J. R., Witzke, W. R.
core   +1 more source

'Fire hardening' spear wood does slightly harden it, but makes it much weaker and more brittle [PDF]

open access: yes, 2016
It is usually assumed that 'fire hardening' the tips of spears, as practised by hunter-gatherers and early Homo spp., makes them harder and better suited for hunting.
Chan, Tak Lok, Ennos, Antony Roland
core   +2 more sources

Dementia Incidence in Individuals With Parkinson's Disease in the Framingham Heart Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Limited information exists on incident dementia in individuals with Parkinson's disease (PD) in US community‐based samples. We examined cognitive statuses and PD diagnoses of 183 individuals in the Framingham Heart Study (FHS) to establish incident dementia, mortality rates, associations with sex, age at PD onset, and education level.
Joshi Dookhy   +11 more
wiley   +1 more source

Effect of aging treatment on microstructure and properties of Al-Zr-Sc(-Er) alloys

open access: yesCailiao gongcheng, 2020
The effects of aging treatment on microstructure and properties of Al-Zr-Sc(-Er) alloys were investigated by TEM, STEM, hardness tests and electric conductivity tests systematically.
ZHAO Hui   +5 more
doaj   +1 more source

Wear of human teeth: a tribological perspective [PDF]

open access: yes, 2005
The four main types of wear in teeth are attrition (enamel-on-enamel contact), abrasion (wear due to abrasive particles in food or toothpaste), abfraction (cracking in enamel and subsequent material loss), and erosion (chemical decomposition of the tooth)
Amaechi B. T.   +18 more
core   +2 more sources

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