Results 71 to 80 of about 30,152 (256)

WS2 Optoelectronic Memristive Reservoir Enabling Ultra‐Low‐Power, Multi‐Task, and Environmentally Stable Neuromorphic Computing

Advanced Science, EarlyView.
WS2‐based in‐memory sensing reservoir computing integrates sensing, memory, and computation in one compact device. It achieves ∼94% N‐MNIST, ∼93% eye motion perception, and ∼89% speech recognition with ultra‐low energy (∼25.5 fJ/spike). The system shows stability at 95% humidity, endurance over 1.5M cycles, and supports synaptic plasticity, enabling ...
Dayanand Kumar, Hanrui Li, Divyanshu Divyanshu, Dhananjay D. Kumbhar, Manoj Kumar Rajbhar, Amit Singh, Abdul Momin Syed, Selma Amara, Gianluca Setti, Nazek El‐Atab   +9 more
wiley   +1 more source

Ball and Roller Bearings [PDF]

Scientific American, 1906
n ...
openaire   +2 more sources

Beyond Percolation: Graphene‐Enabled Network Reinforcement Enhances Thermal Transport in Paraffin Phase‐Change Composites

Advanced Science, EarlyView.
Expanded‐graphite/graphene‐nanoplatelet hybrids deliver a near‐order‐of‐magnitude thermal‐conductivity enhancement in paraffin phase‐change materials. A microCT‐informed 3D modeling framework resolves the percolating EG backbone and captures sub‐voxel GNP enrichment, quantitatively linking microstructure to heat flow and revealing a graphene‐enabled ...
Thomas Hoke, Jackson Hoke, Shucheng Guo, Brittany Chan, Xi Chen   +4 more
wiley   +1 more source

A Calculation Method of Bearing Balls Rotational Vectors Based on Binocular Vision Three-Dimensional Coordinates Measurement

Sensors
The rotational speed vectors of the bearing balls affect their service life and running performance. Observing the actual rotational speed of the ball is a prerequisite for revealing its true motion law and conducting sliding behavior simulation analysis.
Wenbo Lu, Junpeng Xue, Wei Pu, Hongyang Chen, Kelei Wang, Ran Jia   +5 more
doaj   +1 more source

Xenogeneic Mitochondrial Transplantation Improves Selected Age‐Associated Phenotypes in Mice

Advanced Science, EarlyView.
Yak‐derived xenogeneic mitochondrial transplantation improves selected age‐associated phenotypes in mice, enhances mitochondrial functional readouts, and engages host mitochondrial quality‐control pathways. Broad tissue biodistribution, increased ATP production and mtDNA copy number, reduced ROS levels and dysfunctional mitochondria, improved motility ...
Wenpeng Li, Xijia Wang, Yaning Hu, Zhen Yang, Tian Niu, Xingbo Zhao   +5 more
wiley   +1 more source

Reliability-Based Robust Design Optimization with Fourth-Moment Method for Ball Bearing Wear

Lubricants
Ball bearings operating at low speeds and under heavy loads are susceptible to wear failure, leading to significant economic losses. The existing reliability-based robust design optimization method of the fourth-moment method has high accuracy and does ...
Yanzhong Wang, Shiyuan E, Kai Yang, Bin Xie, Fengxia Lu   +4 more
doaj   +1 more source

Characterization of abnormal lubricant film pressure distribution mechanisms in pure sliding AISI52100 ball bearing contacts using sliding contact fatigue distribution and wear behaviour [PDF]

MATEC Web of Conferences
Ball bearings are a critical component of transmission systems whose operation depends on efficient lubrication. Moving surfaces in ball bearings are typically manufactured from AISI52100 martensitic steel material.
Masilela Sipho, Siyasiya Charles, Mostert Roelf   +2 more
doaj   +1 more source

The effect of material defect orientation on rolling contact fatigue of a ball bearing. [PDF]

Sci Rep, 2023
Ghazanfari Holagh A, Alizadeh Kaklar J.
europepmc   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng, Zhicheng Wang, Xin Zhou, Shuya Wang, Xiaojing Shi, Tingli Xiong, Ruishi Li, Yuting Lin, Zhen Chen, Jiawen Wei, Fei Li, Jinwen Ge, Kelong Ai, Chong Liu, Guiming Deng   +14 more
wiley   +1 more source

ANALISIS PERBANDINGAN SIFAT FISIS DAN MEKANIS BANTALAN PELURU BARU, TELAH DIPAKAI DAN RUSAK UNTUK KENDARAAN BERMOTOR RODA DUA

Jurnal Ilmiah SINERGI, 2014
Bearing atau bantalan peluru adalah merupakan suatu alat/benda yang pada awalnya digunakan untuk mempermudah perpindahan suatu benda yang berat dari suatu tempat ke tempat lainnya.
Arfanky Purnama, Ariosuko D. H.
doaj