Results 71 to 80 of about 93,060 (311)

A thermally stable aerostatic spindle system equipped with self-cooling function

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
High efficiency and high precision machining technologies have been recently required in a variety of industries. In general, aerostatic spindle systems can realize such machining, while at high speed rotation it generates a large amount of heat that ...
Yuuki TAMURA   +3 more
doaj   +1 more source

Injectable Dual‐Network Hydrogel System for Osteochondral Repair Combining Immunomodulation, Mechanical Adaptability, and Enhanced Tissue Integration

open access: yesAdvanced Functional Materials, EarlyView.
A UV‐triggered injectable dual‐network hydrogel is reported as the first application of bletilla striata polysaccharide (BSP) in osteochondral repair. By integrating methacrylamide‐modified BSP and nitrobenzaldehyde‐functionalized hyaluronic acid, the system achieves immunomodulation, mechanical reinforcement, and dynamic tissue adhesion, thereby ...
Jiaming Cui   +10 more
wiley   +1 more source

Influence of M-phase chromatin on the anisotropy of microtubule asters [PDF]

open access: yes, 1996
In many eukaryotic cells going through M-phase, a bipolar spindle is formed by microtubules nucleated from centrosomes. These microtubules, in addition to being "captured" by kinetochores, may be stabilized by chromatin in two different ways: short-range
Dogterom, M.   +3 more
core   +2 more sources

Nanodiamond‐Based Quantum Sensing Reveals Changes in Endo‐Lysosomal Activity of Stimulated Cardiac Fibroblasts in a Cellular Fibrosis Model

open access: yesAdvanced Functional Materials, EarlyView.
Quantum sensing reveals intricate patterns linking endo‐lysosomal maturation to cardiac fibrosis progression, highlighting complexity in cellular remodeling. This study investigates fibroblast‐to‐myofibroblast transition under cell aging, stiffness, and TGF‐β stimulation, comparing nanodiamond uptake, endo‐lysosomal dynamics, and free radical ...
Aldona Mzyk   +3 more
wiley   +1 more source

The Nonlinear Stability Prediction and FEM Modeling of High-Speed Spindle System with Joints Dynamic Characteristics

open access: yesShock and Vibration, 2014
When predicting the nonlinear stability of high-speed spindle system, it is necessary to create an accurate model that reflects the dynamic characteristics of the whole system, including the spindle-bearing joint and spindle-holder-tool joints.
Bo Wang   +4 more
doaj   +1 more source

Optimization Of Process Parameters On Tensile Shear Load Of Friction Stir Spot Welded Aluminum Alloy (Aa5052-h112) [PDF]

open access: yes, 2018
Optimization of the process was still the issue in manufacturing. Investigation on the process parameters that effects to the property of welded structure were necessary.
Armansyah, A. (Armansyah)   +1 more
core  

The effects of machining process variables and tooling characterisation on the surface generation: modelling, simulation and application promise [PDF]

open access: yes, 2004
The paper presents a novel approach for modelling and simulation of the surface generation in the machining process. The approach, by integrating dynamic cutting force model, regenerative vibration model, machining system response model and tool profile ...
Altintas   +8 more
core   +1 more source

Novel 3D‐Printed Biophotonic Scaffold Displaying Luminescence under Near‐Infrared Light for Photopharmacological Activation and Biological Signaling Compound Release

open access: yesAdvanced Healthcare Materials, EarlyView.
Despite significant efforts in developing novel biomaterials to regenerate tissue, only a few of them have successfully reached clinical use. It has become clear that the next generation of biomaterials must be multifunctional. Smart biomaterials can respond to environmental or external stimuli, interact in a spatial‐temporal manner, and trigger ...
Sonya Ghanavati   +12 more
wiley   +1 more source

Thermo-mechanical modeling of high speed spindles

open access: yesScientia Iranica, 2012
AbstractPrediction of the thermo-mechanical behavior of machine-tool spindles is essential in the reliable operation of high speed machine tools. In particular, the performance of these high speed spindles is dependent on their thermal behavior. The main source of heat generation in the spindle is the friction torque in angular contact ball bearings ...
Zahedi, A., Movahhedy, M.R.
openaire   +1 more source

Triazine‐Trione Thermosets with High Processability for Scaffold Applications in Bone Tissue Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen   +7 more
wiley   +1 more source

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