Results 61 to 70 of about 368 (189)
Multi-physics coupling effect on morphology evolution and lubrication characteristics of oil film in hydrostatic thrust bearing [PDF]
To address the issues of oil film morphology deviation from theoretical design models and lubrication failure in hydrostatic thrust bearings under high-speed and heavy-load conditions caused by temperature rise and structural deformation, this study ...
Xiaodong Yang +5 more
doaj +1 more source
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Cuttlebone‐inspired architected metamaterials introduce controlled structural disorder to simultaneously enhance strength, energy absorption, and compressive stability. Tunable disorder suppresses shear anisotropy, outperforms periodic lattices, and establishes discrete randomness as a robust route to high‐performance lightweight mechanical ...
Zengqin Shi +7 more
wiley +1 more source
Under extreme working conditions, the lubricating oil film in the clearance of hydrostatic bearing is subjected to the combined action of strong extrusion pressure and strong shear force.
Xiaodong YU +6 more
doaj
Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley +1 more source
Heat Transfer Characteristics of High Speed and Heavy Load Hydrostatic Bearing
This paper investigates the heat transfer characteristics of hydrostatic bearing in a 5m vertical lathe based on fluid-solid-heat coupling analysis.
Xiaodong Yu +5 more
doaj +1 more source
One‐Shot Multimaterial 3D Printing of a Flexible Spine for a Robotic Fish Prototype
A one‐shot multimaterial 3D printing approach enables a monolithic soft robotic fish integrating a compliant spine and rigid vertebrae. Electromagnetic linear actuators drive tendon‐based transmission, producing controlled tail oscillations. Finite element modeling and experiments show strong agreement, while optimized material selection improves ...
Marco Colletta +3 more
wiley +1 more source
ABSTRACT We performed first‐principles density functional theory calculations to methodically analyse the structural, mechanical, electronic, thermal, and optical properties of trigonal ZrSnO3 under external pressure up to 60 GPa with GGA‐PBE and HSE06 functionals.
Jahid Hasan +6 more
wiley +1 more source
ABSTRACT Background and Aims Knee osteoarthritis (KOA) is a progressive degenerative disease causing pain, muscle weakness, and functional decline, particularly in postmenopausal women. While closed kinetic chain (CKC) exercises are effective for rehabilitation, the comparative efficacy of aquatic‐ versus land‐based environments for these exercises ...
Mahshid Mohammadi +3 more
wiley +1 more source
Progress in Biodegradable Nonwoven Materials for Personal Protective Applications
ABSTRACT Personal protective equipment generates large waste streams, underscoring the need for materials that deliver protection without persistent environmental costs. This study reviews biodegradable nonwoven options and relates material choice and disposal routes to barrier performance, comfort, and footprint.
Tarikul Islam +3 more
wiley +1 more source

