Results 111 to 120 of about 474,421 (340)

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Influencing Factors of Electrical Sectioning Arcs in Rail Transit and Their Correlation Analysis

Chengshi guidao jiaotong yanjiu
ObjectiveThe frequent occurrence of electric arcs in the electrical sections of rail transit directly affects the current collection quality of the pantograph-catenary system.
Zicheng WANG, Xiaokang WANG, Zhigang LIU, Biaohuan XIE, Fuchuan DUAN   +4 more
doaj   +1 more source

Testing the operation of protection devices against parallel arc breakdown and spark gaps in the event of a ground fault

Известия высших учебных заведений: Проблемы энергетики
Testing the operation of protection devices against parallel arc breakdown and spark gaps in the event of a ground faultTHE PURPOSE. Develop a laboratory rig for testing parallel arc fault and spark gap protection devices for tripping in the event of a ...
A. N. Tyurin, Yu. I. Soluyanov, A. R. Akhmetshin   +2 more
doaj   +1 more source

Arcing detection method of metro pantograph based on improved yolov4-tiny

机车电传动, 2023
Arcing on metro pantographs contribute to the accelerated wear of pantograph strips and the catenary, imposing a serious safety risk to rail transit. For the problem of strong light interference and variable background in pantograph arcing detection for ...
AI Shengyong, DING Jianming, ZHANG Qingsong   +2 more
doaj  

Significant reduction in arc frequency biased solar cells: Observations, diagnostics, and mitigation technique(s) [PDF]

A variety of experiments were performed which identify key factors contributing to the arcing of negatively biased high voltage solar cells. These efforts have led to reduction of greater than a factor of 100 in the arc frequency of a single cell ...
Aifer, E., Hastings, D., Marinelli, W. J., Snyder, D., Upschulte, B. L., Weyl, G. M.   +5 more
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

Advanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi, Mahyar Panahi‐Sarmad, Ahmadreza Ghaffarkhah, Vahid Rad, Masoud Soroush, Thomas P. Russell, Orlando J. Rojas, Mohammad Arjmand   +7 more
wiley   +1 more source

The influence of various grease compositions and silver nanoparticle additives on electrically induced rolling-element bearing damage

Friction
Leakage currents accelerate surface degradation of metal contacts via small scale arcing across lubricating films, but recent observations suggest that metallic nanoparticle additives in lubricants may be useful to improve contact performance.
Samuel Bond, Robert L. Jackson, German Mills   +2 more
doaj   +1 more source

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Electrohydrodynamic control valve Patent [PDF]

, 1971
Control valve for switching main stream of fluid from one stable position to another by means of electrohydrodynamic ...
Fiet, O. O., Salvinski, R. J.
core   +1 more source