Results 241 to 250 of about 15,513 (309)

An Improved Air Film Model for Studying the Tilt Characteristics of Aerostatic Thrust Bearings

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, an improved mass‐spring model that treats the lubricating air film as distributed springs is proposed to calculate the static and dynamic angular stiffness of aerostatic thrust bearings. The proposed model refines the traditional mass‐spring model by introducing the spatially varying mechanical properties of the air film and the
Hui Zhuang, Jianguo Ding, Yu Chang
wiley   +1 more source

Fault Detection of Electric Motors via Symmetrized Dot Pattern‐Based Features

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study proposes a novel symmetrized dot pattern (SDP) approach using designed SDP‐based features, extracted from transformed vibration signals, for fault detection. These features describe the compactness, inclination, and shape of the “snowflake” diagram distributions.
Mario Spirto   +6 more
wiley   +1 more source

Outpatient preoperative parenteral nutrition in malnourished surgical patients: A feasibility study (the OPPORTUNITY study)

open access: yesNutrition in Clinical Practice, EarlyView.
Abstract Preoperative parenteral nutrition (PN) improves outcomes in malnourished surgical patients. Traditionally, this requires hospital admission, increasing length of stay and costs—challenges worsened by limited hospital bed availability. Outpatient PN may offer a feasible alternative.
Narisorn Lakananurak, Leah Gramlich
wiley   +1 more source

Assessing and Quantifying Variability Across Vacuum‐Assisted Resin Infusion Variants for Aerospace‐Grade Composite Manufacturing

open access: yesPolymer Composites, EarlyView.
Radar‐plot comparison of consolidation quality and flexural performance of composite laminates manufactured by six vacuum‐infusion routes, evaluated at the resin‐inlet and vacuum‐port regions. ABSTRACT Conventional vacuum‐assisted resin transfer molding (C‐VARTM) is recognized as a cost‐effective resin infusion technique for manufacturing large‐scale ...
Ilhan Kahraman   +8 more
wiley   +1 more source

Quantum light drives electrons strongly at metal needle tips. [PDF]

open access: yesNat Phys
Heimerl J   +5 more
europepmc   +1 more source

Entanglement routing via passive optics in CV-networks. [PDF]

open access: yesEPJ Quantum Technol
Fainsin D   +4 more
europepmc   +1 more source

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