Results 21 to 30 of about 642,295 (221)

Erosion and rolling contact wear mechanisms in silicon nitride hybrid bearings. [PDF]

open access: yes
One remarkable advantage of hybrid bearings over all steel bearings is the elimination of separate oil lubricant system in applications, such as compressors and pumps in refrigeration and air conditioning units.
Karunamurthy, Balamurugan
core   +9 more sources

Dispersion Optimization of Silicon Nitride Waveguides for Efficient Four-Wave Mixing

open access: yesPhotonics, 2021
Silicon nitride waveguides have emerged as an excellent platform for photonic applications, including nonlinear optical signal processing, owing to their relatively high Kerr nonlinearity, negligible two photon absorption, and wide transparent bandwidth.
Yaping Hong   +3 more
doaj   +1 more source

High Thermal Conductivity of Silicon Nitride Ceramics: A Review

open access: yesKONA Powder and Particle Journal
Silicon-nitride ceramic substrates exhibit high thermal conductivity, high electrical insulation, high mechanical strength, low expansion. The Cu-clad ceramic substrate is the key material for the encapsulation of insulated gate bipolar transistor ...
Yusen Duan   +5 more
doaj   +1 more source

Photonic Integrated Reconfigurable Linear Processors as Neural Network Accelerators

open access: yesApplied Sciences, 2021
Reconfigurable linear optical processors can be used to perform linear transformations and are instrumental in effectively computing matrix–vector multiplications required in each neural network layer.
Lorenzo De Marinis   +5 more
doaj   +1 more source

Research on Crack Propagation Mechanism of Silicon Nitride Ceramic Ball Bearing Channel Surface Based on Rolling Friction Experiment

open access: yesApplied Sciences
The application feedback on existing silicon nitride ceramic bearings and RCF experimental research all indicate that the primary failure mode of silicon nitride ceramic bearings is material spalling on the contact surface. Spalling failure occurs due to
Pengfei Wang   +5 more
doaj   +1 more source

Silicon Nitride Bearings for Total Joint Arthroplasty

open access: yesLubricants, 2016
The articulation performance of silicon nitride against conventional and highly cross-linked polyethylene, as well as for self-mated silicon nitride bearings, was examined in a series of standard hip simulation studies. Wear rates for polyethylene liners
Bryan J. McEntire   +5 more
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

open access: yesAdvanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee   +16 more
wiley   +1 more source

A feature extraction method for silicon nitride bearing microcracks based on adaptive gamma and multi-width dynamic thresholds [PDF]

open access: yesAIP Advances
This study aims to address the problems of localized indistinctness, low contrast, and unclear feature recognition in images of silicon nitride bearing surfaces by proposing adaptive gamma variation and multi-breadth dynamic threshold segmentation ...
Zhijuan Deng   +5 more
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

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