Results 141 to 150 of about 121,749 (306)

Near-nozzle atomization characteristics of GTL-Jet A-1 fuel blends at combustor relevant conditions using shadowgraph measurements

open access: yesMeasurement: Energy
To achieve the goal of sustainable aviation, the aviation industry is considering blends of conventional and alternative jet fuels to achieve clean combustion.
Kumaran Kannaiyan
doaj   +1 more source

Tailoring Sieving Pores and Electrochemical Interface Intercalation for Mechanically Resilient Recycled Micro‐Silicon Anodes

open access: yesAdvanced Science, EarlyView.
Here, an innovative strategy is proposed, using micron‐sized Si recovered from photovoltaic waste as raw material, combined with electrochemical lithium alloying, reacting with CO2 to obtain sieve‐like porous structure design to overcome mechanical dynamic limitations.
Yunan Wei   +4 more
wiley   +1 more source

Gram‐Scale Synthesis of Hafnium‐Rich Carbon Dots for Preclinical Computed Tomography Imaging Across Various Systems

open access: yesAdvanced Science, EarlyView.
Hafnium (Hf)‐rich carbon dots (Hf‐rCDs) with high metal content (40.7%) and robust batch production capacity (>2 g per batch) are synthesized via a facile air‐assisted pyrolysis method. In vivo CT imaging demonstrates outstanding performance of Hf‐rCDs across multiple physiological systems and enables high‐resolution visualization of swine cervical ...
Shuo Li   +11 more
wiley   +1 more source

All-fluid amplifier development for liquid rocket secondary injection thrust vector control Final report [PDF]

open access: yes
Staged vortex amplifier with integral gas generators for liquid rocket secondary injection thrust vector ...
Delozier, T. R., Kasselmann, J. T.
core   +1 more source

Performance Comparison of Gas Turbine Layouts With Pressure Gain Combustion for Propulsion Applications

open access: yesVolume 5: Cycle Innovations
Abstract Different pressure gain combustion methods such as Constant Volume Combustion (CVC), Pulse Detonation Combustion (PDC), Rotating Detonation Combustion (RDC) and Oblique Detonation Wave Combustion (ODWC) are being explored for aerospace propulsion applications in recent years.
Purushothaman S.   +3 more
openaire   +1 more source

Modification Strategies of Carbon‐Based Electrodes From Structural Regulation to Multifunctional Integration

open access: yesAdvanced Science, EarlyView.
Tracing the evolution from structural regulation to multifunctional integration, this paper systematically analyzes modification strategies for carbon‐based electrodes. It evaluates how element doping, surface functionalization, and composite material design affect the electrode performance, and offers perspectives on future applications and challenges
Yunlei Wang   +4 more
wiley   +1 more source

Preliminary Computational Assessment of Disk Rotating Detonation Engine Configurations [PDF]

open access: yes
A rotating detonation engine (RDE) configuration whereby the working fluid enters and exits in a predominantly radial manner is examined using a quasi-two-dimensional computational fluid dynamic simulation. The simulation, based on a Cartesian coordinate
Paxson, Daniel E.
core   +1 more source

Pressure-gain combustion for gas turbines based on shock-flame interaction

open access: yes, 2014
Der Einsatz instationärer Verbrennung mit Druckaufbau stellt eine Methode zur maßgeblichen Steigerung der Leistungsfähigkeit von Gasturbinen dar. In der vorliegenden Arbeit wird der Vorschlag untersucht, die Verdichtungsstoß-Flammen-Interaktion dazu zu nutzen, einen mittleren, verbrennungsinduzierten Druckanstieg zu erzeugen.
openaire   +2 more sources

Microwave Ultrafast Heating on Iron‐based Nanogap Catalysts for CO2 Reduction Coupling with Coke Removal

open access: yesAdvanced Science, EarlyView.
This study employs a nanogap‐induced microwave discharge strategy to pretreat coke deposits on iron‐based catalysts with engineered nanogaps, causing ultrarapid heating to 1990 K within seconds, selectively eliminating >70% surface carbon deposits and converting waste plastics and greenhouse gases into syngas.
Xi Shen   +4 more
wiley   +1 more source

Comparison of theoretical and experimental thrust performance of a 1030:1 area ratio rocket nozzle at a chamber pressure of 2413 kN/m2 (350 psia) [PDF]

open access: yes
The joint Army. Navy, NASA. Air Force (JANNAF) rocket engine peformnace prediction procedure is based on the use of various reference computer programs. One of the reference programs for nozzle analysis is the Two-Dimensional Kinetics (TDK) Program.
Kacynski, Kenneth J.   +2 more
core   +1 more source

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