Results 81 to 90 of about 33,140 (265)

Spindle Rotational Speed Effect on Milling Process at Low Cutting Speed

open access: yes, 2014
The spindle rotational speed fluctuates during milling due to intermittent cutting forces applied to the spindle, but the speed effect when machining with a relatively large cutter at low cutting speeds is still not clear.
Ishii, Shinji   +2 more
core   +1 more source

Multi‐Axis Stretchable Zippers for Personalized Wound Healing

open access: yesAdvanced Science, EarlyView.
Multi‐axis stretchable zippers can adapt to complex wound morphologies and enable personalized wound treatment through programmable contraction. This morphological matching strategy helps accelerate wound closure, improve blood perfusion, promote epithelial regeneration, and enhance collagen remodeling, pioneering new directions for personalized and ...
Siyuan Cai   +16 more
wiley   +1 more source

Development of methods to improve spindle rotation accuracy while maintaining the precision of spindle unit components [PDF]

open access: yesE3S Web of Conferences
Spindle rotation accuracy is a critical factor in ensuring the precision and reliability of CNC machining systems. Even minor deviations in spindle rotation can lead to significant dimensional inaccuracies, surface defects, and increased tool wear ...
Juraev Musurmon   +4 more
doaj   +1 more source

Development of a chatter detection methodology for variable spindle speed milling

open access: yes, 2018
Regenerative chatter is one of the most detrimental phenomena affecting machining operations both in terms of tool integrity and quality of the machined surface.
Monno m   +3 more
core  

Xenogeneic Mitochondrial Transplantation Improves Selected Age‐Associated Phenotypes in Mice

open access: yesAdvanced Science, EarlyView.
Yak‐derived xenogeneic mitochondrial transplantation improves selected age‐associated phenotypes in mice, enhances mitochondrial functional readouts, and engages host mitochondrial quality‐control pathways. Broad tissue biodistribution, increased ATP production and mtDNA copy number, reduced ROS levels and dysfunctional mitochondria, improved motility ...
Wenpeng Li   +5 more
wiley   +1 more source

Melatonin Alleviates Graft Biliary Fibrosis by Inhibiting VIM+ Cholangiocyte Subcluster via Hypoxia/TGF‐β‐CREM‐VIM Axis

open access: yesAdvanced Science, EarlyView.
Single‐cell RNA sequencing verified the presence of the VIM+ biliary epithelial cell (BEC) in the bile ducts of NAS patients. The hypoxia/TGF‐β‐CREM‐VIM axis mediated phenotypic switch toward VIM+ BEC is validated using a hypoxia/TGF‐β‐stimulated cellular model, a rat liver transplantation model, BEC‐specific Crem conditional knockout rats, and BEC ...
Zhaoyi Wu   +14 more
wiley   +1 more source

A hybrid approach for the machinability analysis of Incoloy 825 using the entropy-MOORA method

open access: yesHigh Temperature Materials and Processes
With its exceptional qualities, Incoloy 825 is highly valued in a range of industries, including nuclear power plants, petrochemical plants, and chemical industries. Nevertheless, the unique combination of these properties presents a formidable challenge
Sahu Saurabh Kumar   +5 more
doaj   +1 more source

Dynamic behavior of the horizontal milling and drilling machine spindle assembly with Dynrot software

open access: yesMATEC Web of Conferences, 2017
This article presents research conducted to study the dynamic behavior of the assembly of a horizontal milling CNC machine spindle at the speed of 10 000 rpm and 50 000 rpm.
Căruţaşu Nicoleta Luminiţa   +2 more
doaj   +1 more source

Characteristics of Additional Load Losses of Spindle System of Machine Tools

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
Energy consumption of machine tool has drawn wide attention in recent years. The additional load losses of machine tools are of great importance for investigating the energy consumption of machine tools because those account for 15-20% of the cutting ...
Shaohua HU, Fei LIU, Yan HE, Bin PENG
doaj   +1 more source

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