Results 41 to 50 of about 2,824 (228)

Impact of Advances in Anion Exchange Membranes and Ionomers on Alkaline Fuel Cells

Chemistry – An Asian Journal, EarlyView.
Advances in anion exchange membranes (AEMs) and ionomer design have propelled alkaline fuel cells toward unprecedented performance, with peak power densities exceeding 3.5 W cm⁻2. This review highlights how molecular‐level innovations— stable hydrocarbon backbones, robust cationic groups, and pH‐gradient‐enabled bipolar interfaces—enable durable, high ...
Zhongyang Wang, Shrihari Sankarasubramanian, Jianping Chen, Vijay K. Ramani   +3 more
wiley   +1 more source

Study of Hot Gas Pressurizing System Tank and Liquid Rocket Engine Interaction by Dynamic Simulation [PDF]

فصلنامه علوم و فناوری فضایی, 2013
Providing of sufficient input pressure of pumps is Pressurizing system tank mission. In structure of objective propulsion system, pressurizing system of fuel tank is hot gas kind that is feeding with engine which caused of operation relational.
H. R. Ali Mohammady, D. Ramesh, M. R. Heidary, R Farrokhi, H. Karimi   +4 more
doaj  

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

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

The Value Chain of Sustainable Dual Carbon Sodium Ion Capacitors

Batteries &Supercaps, EarlyView.
Sodium‐ion capacitors (SICs) bridge the energy‐power gap between batteries and supercapacitors, offering sustainable and scalable energy storage solutions. This review provides a 360‐degree perspective on SIC technology, covering material choices, presodiation strategies, manufacturing challenges, applications and life cycle assessment to ensure ...
Roman Mysyk, Daniel Carriazo, Damien Saurel, Maria Arnaiz, Olivier Crosnier, Thierry Brousse, Kangkang Ge, Pierre‐Louis Taberna, Patrice Simon, Sander Ratso, Einar Karu, Alberto Varzi, Juan Pablo Badillo, Andrea Hainthaler, Akshaya Sidharthan, Andrea Balducci, Obinna Egwu Eleri, Amaia Saenz de Buruaga, Javier Olarte, Juan Dayron Lopez Cardona, Fatemeh Bahmei, Sebastian P. Bautista, Marcel Weil, Jon Ajuria   +23 more
wiley   +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

Simulation and Application of a New Multiphase Flow Ablation Test System for Thermal Protection Materials Based on Liquid Rocket Engine

Aerospace, 2022
Internal flow field ablation is an important issue in thermal protection materials for rocket engines and hypersonic vehicles. In this paper, a new multiphase flow ablation test system, with an Al2O3 particle delivery device based on an oxygen-kerosene ...
Qingdong Su, Bailin Zha, Jinjin Wang, Mingxia Yan, Yong Gao, Zhensheng Sun, Weifeng Huang   +6 more
doaj   +1 more source

Light‐Emitting Diodes as Wireless Optical Transducers of Chemical Information

ChemPhotoChem, EarlyView.
The synergy of light‐emitting diodes (LEDs) and bipolar electrochemistry has been explored to develop novel and straightforward optical readouts of chemical information. These approaches offer the possible encoding of the chemical information on the intensity of the light emission, opening multiple applications ranging from electroanalysis to dynamic ...
Marine Lavainne, Leslie R. Arias‐Aranda, Neso Sojic, Laurent Bouffier, Alexander Kuhn, Gerardo Salinas   +5 more
wiley   +1 more source

Comparative Analysis of Liquid Rocket Engines and Solid Rocket Engines based on Specific-Impulse

, 2023
{"references": ["Title: \"Rocket Propulsion\" (2nd Edition) Authors: Stephen D. Heister and Sven G. Bil\u00e9n Publisher: CRC Press Year: 2017 Relevant sections: \u2022\tChapter 2 - Propellant Characteristics \u2022\tChapter 6 - Liquid Propellant Rocket Engines \u2022\tChapter 7 - Solid Propellant Rocket Motors", "Title: \"Technology for U.S.
openaire   +2 more sources

Recent Advances in Non‐Aqueous Liquid Electrolytes for High‐Voltage Sodium‐Ion Batteries

EcoEnergy, EarlyView.
Increasing charging voltage is an effective way to realize sodium‐ion batteries with low cost and high energy density. This review systematically summarizes the development of electrolytes for high‐voltage sodium‐ion batteries in recent years, aiming to promote the breakthrough and application of high energy density sodium‐ion batteries.
Jing Ning, Min Zhou, Yujie Zhang, Tianqi Wang, Manlin Chen, Qiao Cu, Kangli Wang, Wei Wang, Haomiao Li, Kai Jiang   +9 more
wiley   +1 more source