Results 181 to 190 of about 295,204 (387)

Advancing Nitrate‐to‐Ammonia Electrocatalysis: Strategies in Catalyst Design, Electrolyte Engineering, and Performance Evaluation

open access: yesAdvanced Science, EarlyView.
This review highlights the latest advances in electrocatalytic nitrate reduction to ammonia, with a focus on catalyst design strategies, electrolyte engineering, and performance evaluation. Abstract The electrochemical reduction of nitrate for ammonia production not only offers a promising alternative to the traditional Haber–Bosch process, which ...
Juan Bai   +8 more
wiley   +1 more source

High Electrical Conductivity Induced by Surface Confinement Effect in Heterostructured Multifunctional Nanofiber Composite Films for Low‐Reflection Electromagnetic Interference Shielding

open access: yesAdvanced Science, EarlyView.
Spray‐coated PVA‐co‐PE/AgNW/MXene films achieve 60.2 dB EMI shielding (8–20 GHz) with low reflection (R = 0.13) at 5.4 wt.% loading. The 3D conductive network enhances absorption, while the film offers high strength (18.33 MPa), Joule heating, photothermal conversion, flexibility, and flame resistance.
Dechang Tao   +8 more
wiley   +1 more source

Automotive Stirling engine development program [PDF]

open access: yes
The major accomplishments were the completion of the Basic Stirling Engine (BSE) and the Stirling Engine System (SES) designs on schedule, the approval and acceptance of those designs by NASA, and the initiation of manufacture of BSE components.
Cronin, M.   +8 more
core   +1 more source

Why Will Polymers Win the Race for Solid‐State Batteries?

open access: yesAdvanced Science, EarlyView.
Polymer‐based electrolytes are leading solid‐state battery contenders by balancing processability, mechanical compliance, and interfacial compatibility. Their tunable chemistry enables scalable, cost‐effective manufacturing, overcoming oxide/sulfide limitations.
Zhiyong Li, Sisi Peng, Lu Wei, Xin Guo
wiley   +1 more source

基于ADAMS的多缸内燃机曲柄连杆机构动力学仿真分析

open access: yesJixie chuandong, 2012
The inertial force and moment produced by the crank-rod mechanism is an important factor of the vibration of multi-cylinder internal combustion engine.
张小明, 魏德超, 郭晓杰
doaj  

The Nutating Engine-Prototype Engine Progress Report and Test Results [PDF]

open access: yes
A prototype of a new, internal combustion (IC) engine concept has been completed. The Nutating Engine features an internal disk nutating (wobbling) on a Z-shaped power shaft.
Boruta, Mike, Meitner, Peter L.
core   +1 more source

Advances in High‐Entropy Catalysts for Lithium–Sulfur Batteries: Design Principles, Recent Progress, and Prospects

open access: yesAdvanced Science, EarlyView.
This review highlights recent progress in high‐entropy catalysts for Lithium–sulfur (Li–S) batteries, covering their structural features, catalytic functions, synthesis strategies, and representative material systems, including high‐entropy alloys, oxides, nitrides, sulfides, phosphides, and MXene. Challenges and future directions are also discussed to
Ruohan Hou   +7 more
wiley   +1 more source

Internal combustion engine acoustic diagnostics

open access: yesВестник СибАДИ
Introduction. To ensure stable performance of transport and technological machines, constant monitoring of their technical condition is necessary. Timely diagnosis is difficult to carry out when working in remote regions, as well as when transporting ...
V. D. Gabidulin
doaj   +1 more source

Home - About - Disclaimer - Privacy