Results 41 to 50 of about 69,089 (320)

Effects of radiation, curvature, and preferential diffusion on the extinction of laminar non-premixed flames

AIP Advances, 2022
The combined effects of radiative heat loss, curvature, and preferential diffusion on laminar non-premixed flames (or flamelets) are investigated in this work by using asymptotic analysis.
Yushan Gao, Wang Han, Zheng Chen, Qingfei Fu, Lijun Yang   +4 more
doaj   +1 more source

Iron‐Based Catalysts for the Removal of Microplastics

Advanced Energy and Sustainability Research, EarlyView.
Microplastics (MPs) are some of the newer environmental dangers and are still in need of optimal treatment. Iron‐based compounds can be used as catalysts for the removal of MPs due to the iron abundance, sustainability, and catalytic versatility. This review presents the current status of iron‐based materials for the photocatalytic, Fenton process, and
Rossella Greco, Javier Fernandez‐Catalá, Jennyffer Quimbayo, Romain Botella   +3 more
wiley   +1 more source

Physics-Embedded Recurrent Graph Neural Network for Fault Diagnosis of Complex Systems

IEEE Access
The improvement of fault diagnosis for complex equipment is an important step towards intelligent systems. Unlike component-level fault detection, system-level fault diagnosis presents new challenges, such as the integration of multiple sensors, the ...
Yushan Gao, Zhirong Zhong, Meng Ma, Zhenzhen Zhang, Yuxiang Zhang, Chenxi Wang, Zhizhen Wang   +6 more
doaj   +1 more source

Liquid Propulsion at IAE: Vision of the activities and future perspectives [PDF]

Journal of Aerospace Technology and Management, 2009
This paper presents the activities in the area of liquid propulsion, which received an effective boost at the end of the 90s. There is a consensus among specialists on the use of liquid propulsion in the next generation of satellite launcher vehicles in ...
Marco F. Carvalho Torres, Daniel Soares de Almeida, Yelisetty S. Rama Krishna, Luiz Antônio Silva, Wilson Kiyoshi Shimote   +4 more
doaj  

Additive Manufacturing of Liquid Rocket Engine Combustion Devices: A Summary of Process Developments and Hot-Fire Testing Results

2018 Joint Propulsion Conference, 2018
Additive Manufacturing (AM) of metals is a processing technology that has significantly matured over the last decade. For liquid propellant rocket engines, the advantages of AM for replacing conventional manufacturing of complicated and expensive ...
P. Gradl, S. Greene, C. Protz, Brad Bullard, J. Buzzell, C. Garcia, J. Wood, K. Cooper, J. Hulka, R. Osborne   +9 more
semanticscholar   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source

A design tool for liquid rocket engine injectors [PDF]

36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2000
A practical design tool which emphasizes the analysis of flowfields near the injector face of liquid rocket engines has been developed and used to simulate preliminary configurations of NASA's Fastrac and vortex engines. This computational design tool is sufficiently detailed to predict the interactive effects of injector element impingement angles and
H. Trinh, Richard Farmer, K. Tucker, Gary C. Cheng   +3 more
openaire   +2 more sources

Unlocking the Potential of Electrolyte Recovery from Battery Waste: A Promising Path to Sustainable and Safe Li‐Ion Batteries

Batteries &Supercaps, EarlyView.
Due to several challenges, electrolyte recovery from spent battery waste has been less explored compared to electrode materials. This study presents various strategies for recovering electrolytes from spent battery waste. Electrolyte recovery can prevent hazardous chemicals from being released into the environment.
Palanivel Molaiyan, Hossein Rostami, Karuppasamy Karuppasamy, Varsha Srivastava, Ulla Lassi   +4 more
wiley   +1 more source

Petri Nets Applied in Purge Algorithm Analysis for a Rocket Engine Test with Liquid Propellant

Aerospace, 2023
During the development stage of a space vehicle, instrumented tests are carried out on the ground to prove the operational capacity of each liquid-propellant rocket engine, which is installed in this type of vehicle.
Evandro Rostirolla Bortoloto, Francisco Carlos Parquet Bizarria, José Walter Parquet Bizarria   +2 more
doaj   +1 more source

Thermal degradation of impact‐modified PMMA in mechanical and chemical recycling

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Poly (methyl methacrylate) (PMMA) is a thermoplastic with outstanding tensile strength, UV resistance, and a high level of transparency that has been used widely for optical applications such as glazing in the automobile industry. Mechanical recycling, the most widespread method, degrades the physical properties and prevents reusing PMMA in ...
Tien Dat Nguyen, Nooshin Saadatkhah, Yanfa Zhuang, Jacopo De Tommaso, Karen Stoeffler, Adrien Faye, Gregory S. Patience   +6 more
wiley   +1 more source