Results 31 to 40 of about 4,168,877 (128)

Gas dynamics at the micro-scale: A review of progress in hydrodynamic modelling [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009), Reese, JM, Emerson, DR, Lockerby, DA   +3 more
core   +5 more sources

Electrospun Porous Materials for the Next‐Generation Proton Exchange Membrane Fuel Cells: Progress, Challenges, and AI‐Optimized Perspectives

Carbon Energy, EarlyView.
Incorporating AI to optimize solution, process, and environment enables efficient prediction of structural properties and performance, allowing tailoring of GDL, CL, and PEM fabrication to guide PEMFC toward 9.0 kW L‒1 by 2040. ABSTRACT The performance and commercial viability of proton exchange membrane fuel cells (PEMFCs) are constrained by key ...
Shangfeng Jiang, Panfeng Wang, You Gong, Zeyu Sun, Huatan Chen, Geng Wang, Ting Tao, Chuang Zhai, Xi Wang, Ruixin Chen, Jiaxin Jiang, Bingrong Zhang   +11 more
wiley   +1 more source

Technology Investigation for High Area Ratio Nozzle Concepts [PDF]

, 2003
Bell-type nozzle concepts are state -of-the-art technology for expanding gases towards high exhaust velocities. Alternative nozzle concepts have been investigated, although none of them has achieved full-scale flight hardware status.
Frey, Manuel, Preuss, Axel, Zerjeski, David, Hagemann, Gerald, Rydén, Roland, Stark, Ralf, Grauer, Frank, Kretschmer, Joachim   +7 more
core  

Experimental methods in chemical engineering: The scientific method versus engineering design methodology

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Engineering graduate students confuse the scientific method and problem solving when presenting their pre‐doctoral exams and theses: Science discourse adopts question and hypotheses to assert and establish a study's rationale, while it is problem and objectives in engineering design.
Gregory S. Patience, Alexander R. P. Harrison, Nicolas A. Patience, Paul A. Patience, Robert S. Weber   +4 more
wiley   +1 more source

Temperature‐Dependent Kinetics of Plasma‐Based CO2 Conversion: Interplay of Electron‐Driven and Thermal‐Driven Chemistry

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The transformation of CO2 into chemical building blocks is essential for a net‐zero energy future. Plasma‐chemical processing offers promising potential to achieve this. Here, we explore a temperature‐dependent plasma‐chemical reaction mechanism, revealing a shift from electron‐driven to thermal‐driven CO2 conversion regimes.
Aswath Mohanan, Ramses Snoeckx, Min Suk Cha   +2 more
wiley   +1 more source

A micro diffuser/nozzle pump with fins on the sidewall

, 2007
As the diffuser/nozzles are the key parts for micro diffuser/nozzle pumps, this paper reports a novel method for improving the flow efficiency by adding fins on its sidewall. The shape of the fin is imitative of the fish fins.
Yu XM, Zhang DC, Xu WH, Li XH, Li ZH, X. H. Li, D. C. Zhang, X. M. Yu, W. H. Xu, Z. H. Li   +9 more
core   +1 more source

Experimental Flow Investigation of a Truncated Ideal Contour Nozzle [PDF]

, 2006
Various tests showed a significant side load peak for low nozzle pressure ratios during engine start-up and shut down phase. DLR Lampoldshausen carried out tests to examine the flow field in a truncated ideal contour nozzle for low NPR.
Ralf Stark, Bernd Wagner, Stark, Ralf, Wagner, Bernd   +3 more
core   +1 more source

Harnessing Thin‐Film Solid‐State Electrolytes: Enabling Breakthroughs in All‐Solid‐State Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration highlighting the advantages of transitioning from traditional thick solid‐state electrolytes (SSEs) to thin‐film SSEs. Thinning the electrolyte enables higher ionic conductivity, reduced interfacial polarization, improved flexibility, compact electrode contact, and enhanced energy density, offering a promising pathway toward high‐
Yitao He, Haoyang Cheng, Li Wang, Xiangming He   +3 more
wiley   +1 more source

Aerogel Fiber: A One‐Dimensional Programmable Porous Matter for Next Thermal Management Materials

Interdisciplinary Materials, EarlyView.
Aerogel fibers are redefined as one‐dimensional programmable porous matter, where thermal transport is governed by multiscale pathway engineering. By reconstructing and decoupling transport pathways from molecular to textile scales, these systems integrate insulation, radiative cooling, and adaptive thermal regulation.
Lizhi Ren, Zihui Liang, Xiangzhe Li, Huimin Wu, Sixing Xiong, Jin Qian, Kai Wang   +6 more
wiley   +1 more source

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source