Results 181 to 190 of about 722 (280)

Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition

Chemie Ingenieur Technik, EarlyView.
The ignition and combustion of particle clouds are strongly affected by particle interactions. This study uses spectroscopy to examine effects of particle size, water content, and cloud density. Results show ignition delay rises with larger size and density, whereas combustion duration depends mainly on water and density due to moisture‐driven ...
Matteo Giesen, Daniel Bernhardt, Michael Beckmann   +2 more
wiley   +1 more source

Mode-locked optomechanical frequency combs in a graphene-silica microresonator. [PDF]

Sci Adv
Zhang H, Liang YP, Tan T, Wen SD, Yu Y, An N, Liu YW, Guo YH, Gong QH, Huang YJ, Rao YJ, Xiao YF, Yang QF, Yao BC.   +13 more
europepmc   +1 more source

A comparative study of cesium and rubidium atomic clocks using computer simulations

Atomic clocks are used in high-precision navigation and timing systems, but choosing the optimal clock type requires a trade-off between accuracy and cost. In this study, we compared the performance of cesium and rubidium clocks using n seven-day numerical simulation based on four major sources of frequency drift, including environmental noise and ...
openaire   +2 more sources

Energy Landscapes in Chemical Reactions and Transport

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

Mathematical Modeling of Atmospheric Effects on Distance Determination Accuracy in the VDES R-Mode System. [PDF]

Sensors (Basel)
Bronk K, Koncicki P, Lipka A, Niski R, Wereszko B.   +4 more
europepmc   +1 more source

New‐Generation Integrated Devices: Multiple‐Energy Utilization and Integration Systems Based on Perovskite Photovoltaics

EcoEnergy, EarlyView.
This review highlights emerging integrated energy systems based on perovskite photovoltaics, including PSC–thermoelectric, photovoltaic–electrochemical, self‐charging, and building‐integrated architectures. By coupling multiple energy conversion and storage pathways, these multifunctional platforms enable enhanced solar utilization, improved stability,
Yihuai Huang, Wenguang Zhang, Yuchen Xiong, Zijun Yi, Changkai Huang, Qinghui Jiang, Abdul Basit, Guibin Shen, Yubo Luo, Xin Li, Junyou Yang   +10 more
wiley   +1 more source

High-Precision Time Synchronization and Autonomous Maintenance for LEO Satellite Constellations Based on High-Stability Crystal Oscillators. [PDF]

Sensors (Basel)
Mu L, Hu X, Wu M, Li J.
europepmc   +1 more source

Lithium Metal Anode Fabrication: Methods, Challenges, and Strategies

EcoEnergy, EarlyView.
Schematic illustration of four representative fabrication techniques for thin lithium metal anodes: extrusion, molten lithium infusion, electroplating, and physical vapor deposition (PVD). ABSTRACT The pursuit of ultra‐high energy‐dense lithium‐metal batteries (LMBs) has reignited the drive to fabricate ultrathin high‐quality lithium metal anodes. This
Ji Hyun Baek, Mi Ji Kang, Ho Won Jang
wiley   +1 more source

Research on a Miniaturized Digital Servo System for Passive Hydrogen Masers. [PDF]

Sensors (Basel)
Guo S, Cao M, Chen P, Shuai T, Hu W, Pei Y.   +5 more
europepmc   +1 more source

Competitive Cationic Adsorption‐Driven Dynamic Electrostatic Shielding Enables Ultra‐Stable Zn Metal Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates the dynamic electrostatic shielding effect driven by competitive cation adsorption and its role in stabilizing zinc anodes for aqueous zinc metal batteries. The preferential adsorption of R+ cations, particularly K+, effectively rearranges the inner Helmholtz layer, modulates the electric field distribution, and weakens zinc ...
Ziang Wu, Xiaofang Wang, Qian Zhang, Debing Long, Xiyan Bao, Jia Yao, Jingying Li, Xingtai Liu, Xiaolin Wu, Houzhao Wan   +9 more
wiley   +1 more source