Results 61 to 70 of about 7,562 (263)

Synergistic Effects of Surface Texture and Cryogenic Treatment on the Tribological Performance of Aluminum Alloy Surfaces

Lubricants
In order to improve the tribological properties of the 7075-T6 aluminum alloy used on the rotor surface, a combined method of cryogenic treatment and laser surface texture treatment was applied.
Rui Liu, Xiwen Deng, Xuejian Sun, Jilin Lei, Dewen Jia, Wengang Chen, Qiang Ji   +6 more
doaj   +1 more source

TiO6 as a Compensatory Structural Unit in Co‐Free, High‐Ni Layered Oxide for Durable Lithium‐Ion Batteries

Advanced Science, EarlyView.
Ti substitution stabilizes Co‐free high‐Ni layered oxides through both structural and electronic effects. TiO6 octahedra act as compensatory structural units that help interrupt cooperative Jahn–Teller distortion and suppress detrimental phase transitions, while the electron‐withdrawing inductive effect of Ti stabilizes the oxygen lattice. As a result,
Bixian Ying, Zhenjie Teng, Jun Wang, Honghong Tian, Charlotte von Petersdorff‐Campen, Rommel T. Tolla, Iuliia Mikulska, Linus Voigt, Sascha Nowak, Verena Naber, Alexander Schökel, Yuanming Liu, Michael Merz, Peter Nagel, Stefan Schuppler, Katja Frenzel, Adrian Jonas, Lena Mathies, Martin Winter, Karin Kleiner   +19 more
wiley   +1 more source

China's Low‐Carbon Energy Transition Over the Past Two Decades: Experiences and Implications

Advanced Science, EarlyView.
China's low‐carbon energy transition features a brief decline and subsequent rebound in coal consumption, alongside the rapid expansion of renewable energy. This study develops a stage‐based analytical framework to explain this evolution from the perspectives of economic development, energy security, and environmental sustainability, revealing how ...
Yu Liu, Zhiyu Tian, Zhengxian Zhang, Xinbei Li   +3 more
wiley   +1 more source

From Fluoride Removal to Interfacial Reactivity Enhancement: Functionalized La3+‐Crosslinked B/CuO Energetic Microspheres

Advanced Science, EarlyView.
A fluoride adsorption‐functionalization strategy directly couples fluoride wastewater remediation with combustion performance enhancement of B/CuO energetic microspheres. Fluoride captured from wastewater is retained within the microspheres without adsorbent regeneration or disposal, simultaneously achieving pollutant removal and enhanced energetic ...
Hongbiao Huo, Minghao Bao, Zhongbo Han, Wei Shi, Jianyong Xu, Pengfei Cui, Wenchao Zhang   +6 more
wiley   +1 more source

Time–Frequency Domain Signal Analysis for Knock Detection in Hydrogen-Fueled Engines

Energies
Hydrogen is a promising carbon-neutral fuel for future internal combustion engines due to its wide flammability range, high flame speed, and absence of carbon-based emissions.
Brijesh Kinkhabwala, Uwe Wagner, Thomas Koch   +2 more
doaj   +1 more source

Supercapacitor Safety: Overcharge‐Induced Failure Mechanisms in Electrochemical Double‐Layer Capacitors

Advanced Science, EarlyView.
Time‐resolved synchrotron radiography reveals the internal evolution of electrochemical double‐layer capacitors under abusive overcharge. EDLCs are shown to follow a thermally driven failure pathway involving electrolyte decomposition, gas generation, and structural collapse, distinct from chemically driven thermal runaway effects of Lithium‐ion ...
Thomas Dore, Inez Kesuma, Abdus S. Ali, Jonas Pfaff, Yuxiao Jin, Rosalie Hamill, Mark Buckwell, Hamish Reid, Thomas Finco, Zeyu Sun, Yuanze Li, Sebastian Schopferer, Siegfried Nau, Nils Böttcher, Henning Markötter, Alexander J. E. Rettie, James Robinson, Paul R. Shearing, Alexander Rack, Thomas S. Miller   +19 more
wiley   +1 more source

Research on Control Strategy of Semi-Active Suspension System Based on Fuzzy Adaptive PID-MPC

Applied Sciences
To address the dynamic characteristics of vehicle semi-active suspension systems under special operating conditions and multi-source excitations, this paper proposes a fuzzy adaptive proportional–integral–derivative model predictive control (PID-MPC ...
Cheng Cai, Guiyong Wang, Zhigang Wang, Raoqiang Li, Zhiwei Li   +4 more
doaj   +1 more source

Visualisation Research into Fuel Spray Propagation

Communications, 2005
The results of research into a new construction of a diesel engine multi-hole injector are presented. The injector needle (RSN injector) performs a rotary/swinging movement.
Hubert Kuszewski, Kazimierz Lejda, Zygmunt Szlachta   +2 more
doaj   +1 more source

In Situ Generation of Gel Foam via Heat‐Accelerated Calcium Ion Release From Nano‐CaCO3 for Lithium‐Ion Battery Fire Suppression and Prevention

Advanced Science, EarlyView.
We present a heat‐accelerated in situ crosslinking strategy to create an alginate gel foam for lithium‐ion battery fire suppression. At ambient temperature, the formulation maintains low viscosity for easy foam generation. After exposure to fire, δ‐gluconolactone hydrolysis accelerates, enabling rapid Ca2+ release from CaCO3 and rapid ionic ...
Xiaoyang Yu, Cuiping Li, Mingjun Xu, Man Pun Wan   +3 more
wiley   +1 more source

Review of Energy Management Systems for Islanded Microgrids

发电技术
ObjectivesAgainst the backdrop of energy resource scarcity and increasing environmental demands, distributed energy supply technologies, particularly renewable energy technologies, have attracted significant attention due to their high energy efficiency,
LEI Jilin, YU Linxing, BIE Yu, XU Zhibo, XIAO Yuhan   +4 more
doaj   +1 more source