Results 11 to 20 of about 242,080 (232)

Association of Accelerometry-Measured Physical Activity and Cardiovascular Events in Mobility-Limited Older Adults: The LIFE (Lifestyle Interventions and Independence for Elders) Study. [PDF]

open access: yes, 2017
BACKGROUND:Data are sparse regarding the value of physical activity (PA) surveillance among older adults-particularly among those with mobility limitations. The objective of this study was to examine longitudinal associations between objectively measured
Abbie Wrights   +124 more
core   +2 more sources

An Experimental Investigation of Hot Machining with Induction to Improve Ti-5553 Machinability [PDF]

open access: yes, 2011
The manufacturing of aeronautic parts with high mechanical properties requires the use of high performance materials. That’s why; new materials are used for landing gears such as the titanium alloy Ti-5553.
Baili, Maher   +4 more
core   +3 more sources

A practical methodology to select fretting palliatives: Application to shot peening, hard chromium and WC-Co coatings [PDF]

open access: yes, 2005
Considered as a plague for numerous industrial assemblies, fretting, associated to slight oscillatory displacement, is encountered in all quasi-static contacts subjected to vibration.
Fouvry, S., Kubiak, K., Marechal, A.M.
core   +1 more source

Five-Axis Machine Tool Condition Monitoring Using dSPACE Real-Time System [PDF]

open access: yes, 2012
This paper presents the design, development and SIMULINK implementation of the lumped parameter model of C-axis drive from GEISS five-axis CNC machine tool.
Fletcher, Simon   +4 more
core   +1 more source

The effect of an organic pentasulfide EP additive in turning and milling operations [PDF]

open access: yes, 2014
Coopération avec Ecole Centrale LyonBecause a cutting fluid could be equally used for different cutting operations, this study proposed to investigate the behavior of a well-known extreme-pressure additive (pentasulfide) in both turning and milling ...
BIERLA, Aleksandra   +4 more
core   +4 more sources

How to humiliate and shame: A reporter's guide to the power of the mugshot [PDF]

open access: yes, 2013
This is an Author's Accepted Manuscript of an article published in Social Semiotics, 24(1), 56-87, 2014, copyright Taylor & Francis, available online at: http://www.tandfonline.com/The judicial photograph – the “mugshot” – is a ubiquitous and instantly ...
Arendt H.   +30 more
core   +1 more source

Fog computing and convolutional neural network enabled prognosis for machining process optimization [PDF]

open access: yes, 2019
Cloud enabled prognosis systems have been increasingly adopted by manufacturing industries. The effectiveness of the cloud systems is, however, crippled by the high latency of data transfer between shop floors and the cloud.To overcome the limitation ...
Li, Weidong   +3 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Tool Wear State Identification Based on the IWOA-VMD Feature Selection Method

open access: yesMachines
Complex, thin-walled components are the most important load-bearing structures in aircraft equipment. Monitoring the wear status of milling cutters is critical for enhancing the precision and efficiency of thin-walled item machining. The cutting force signals of milling cutters are non-stationary and non-linear, making it difficult to detect wear ...
Xing Shui   +4 more
openaire   +2 more sources

Monitoring of circulating tumor DNA allows early detection of disease relapse in patients with operable breast cancer

open access: yesMolecular Oncology, EarlyView.
Monitoring circulating tumor DNA (ctDNA) in patients with operable breast cancer can reveal disease relapse earlier than radiology in a subset of patients. The failure to detect ctDNA in some patients with recurrent disease suggests that ctDNA could serve as a supplement to other monitoring approaches.
Kristin Løge Aanestad   +35 more
wiley   +1 more source

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