Results 31 to 40 of about 33,140 (265)

Experimental Study on the Dynamic Performance of a New High-Speed Spindle Supported by Water-Lubricated Hybrid Bearings

open access: yesShock and Vibration, 2016
The dynamic performance of a new high-speed spindle supported by water-lubricated hybrid bearings is experimentally studied on a test rig. The present design allows the speed of the spindle up to 30,000 rpm, with a bearing internal diameter of 40 mm ...
Lin Wang, Hua Xu
doaj   +1 more source

Research on dynamic characteristics of motorized spindle based on comprehensive stiffness of angular contact ball bearing [PDF]

open access: yesMechanical Sciences
In order to study the dynamic performance of a motorized spindle system more accurately and to consider the centrifugal effect, thermal effect of the angular contact ball bearing (ACBB) caused by high speed and influence of temperature rise on the ...
B. Dong, C. Lei, K. Liu, R. Song, P. Cui
doaj   +1 more source

Theoretical investigation on nonlinear dynamic characteristic of spindle system

open access: yesAdvanced Composites Letters, 2020
Radial gap will occur at the spindle–tool holder interface when the spindle rotates at high speed. Therefore, the radial gap will lead to the nonlinear stiffness at the spindle–tool holder connection, and it will have effects on dynamic characteristic of
Xiangsheng Gao   +4 more
doaj   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

open access: yesFEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner   +7 more
wiley   +1 more source

Measurement Research of Motorized Spindle Dynamic Stiffness under High Speed Rotating

open access: yesShock and Vibration, 2015
High speed motorized spindle has become a key functional unit of high speed machine tools and effectively promotes the development of machine tool technology.
Xiaopeng Wang, Yuzhu Guo, Tianning Chen
doaj   +1 more source

Spindle speed of drills.

open access: yes, 2019
Spindle speed of drills.
Kirsten Schmieder (6612179)   +4 more
core   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

MODELLING AND ANALYSIS OF CHATTER MITIGATION STRATEGIES IN MILLING [PDF]

open access: yes, 2013
Machining stability plays a major role in improving machine tool performance and product quality. Uncontrolled chatter phenomenon causes too many defects and problems in manufacturing industry such as increased surface roughness, tool wear and even ...
Saleh, Khaled
core  

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

The Effects of Cutting Parameters Used in Milling X153CrMoV12 Cold Work Tool Steel by End Mills on Surface Roughness and Hardness of The Workpiece

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2022
The aim of this work is to investigate the effect of the spindle speed and feed rate used in milling X153CrMoV12 cold work steel by X5070 blue coated solid carbide end mill on surface roughness and hardness of the workpiece.
Ferhat CERİTBİNMEZ, Erdoğan KANCA
doaj   +1 more source

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