Results 41 to 50 of about 888 (231)

Effect of aluminum particle size on agglomeration size and burning rate of composite propellant

Journal of Thermal Science and Technology, 2022
An experimental investigation on effects of aluminum particle size on the combustion characteristics of aluminized composite propellant was performed. Reducing the agglomeration size on the burning surface is important to reduce slag in the solid rocket ...
Apollo B. FUKUCHI
doaj   +1 more source

An Investigation of the Relationship Between Central Bank Unconventional Monetary Policy and Bitcoin Activity

International Journal of Finance &Economics, EarlyView.
ABSTRACT This article investigates whether the unconventional monetary policy (UMP) measures pursued by the Federal Reserve, the Bank of England, the Bank of Japan, and the European Central Bank since the Global Financial Crisis (GFC) are associated with an appetite for cryptocurrency.
Niamh Wylie, Martha O'Hagan‐Luff
wiley   +1 more source

Combustion behavior of aluminum particles in ADN/GAP composite propellants

, 2022
S.253-270Propellants containing ADN/GAP are regarded as a promising green alternative to AP/HTPB solid rocket propellants because of avoiding chloric acid emission.
Fischer, Sebastian, DeLuca, Luigi, Franzin, Andrea, Gettwert, Volker, Eisenreich, Norbert, Weiser, Volker, Raab, Angelika, Kelzenberg, Stefan, Knapp, Sebastian, Roth, Evelin   +9 more
core   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

A Review of Erosive Burning Models for Solid Propellant Rocket Motors (Spreadsheet)

, 2021
This spreadsheet, an integral part of the thesis "A Review of Erosive Burning Models for Solid Propellant Rocket Motors" (Guided Weapon Systems MSc, 2020/2021), presents a useful tool in modelling the erosive burning rate of composite and double-base ...
Macêdo-Gonçalves, Daniel
core   +1 more source

Efeito da concentração do catalisador acetilacetonato férrico na cura de poliuretano à base de polibutadieno líquido hidroxilado (PBLH) e diisocianato de isoforona (IPDI) Effect of ferric acetylacetonate catalyst concentration on the cure of polyurethane based on hydroxy terminated polybutadiene and isophorone diisocyanate

Química Nova, 2002
The reaction between hydroxy-terminated polybutadiene and isophorone diisocyanate constitutes the base of the curing process of the most composite solid propellant used in the propulsion of solid rocket propellant.
Willian César Paterlini, Edson Cocchieri Botelho, Luís Cláudio Rezende, Vera Lucia Lourenço, Mirabel Cerqueira Rezende   +4 more
doaj   +1 more source

A Coupled Heat Transfer Calculation Strategy for Composite Cooling Liquid Rocket Engine

Aerospace, 2023
To better understand the characteristics of coupled heat transfer in liquid rocket engines, a calculation scheme is proposed in this paper. This scheme can simulate the coupled heat transfer processes, including combustion and flow in the thrust chamber,
Bo Xu, Bing Chen, Jian Peng, Wenyuan Zhou, Xu Xu   +4 more
doaj   +1 more source

Synthesis and Characterization of an Azido Nitrofurazanyl Ether: An Energy‐Rich Heterocyclic Plasticizer With a Low Glass Transition Temperature

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT We report on the synthesis and characterization of 3‐(2‐(2‐azidoethoxy)ethoxy)‐4‐nitro‐1,2,5‐oxadiazole (NFPEG2N3), which is a liquid nitrofurazanyl ether that was designed to be an energy‐rich plasticizer for glycidyl azide polymer (GAP)‐ and nitrocellulose (NC)‐based formulations.
P. Lieber, A. Omlor, U. Schaller, T. M. Klapötke   +3 more
wiley   +1 more source

Performance evaluation of commercial copper chromites as burning rate catalyst for solid propellants [PDF]

Journal of Aerospace Technology and Management, 2010
Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Milton Faria Diniz, Eunice Aparecida Campos, Luis Cláudio Rezende, Rita de Cássia L. Dutra, Wilma Massae Dio Nawa, Koshun Iha   +5 more
doaj  

Thermal decomposition reaction mechanism and combustion performance of AlH3/AP energetic composite

Case Studies in Thermal Engineering, 2022
To study the reaction mechanism and the optimal energy release ratio of the AlH3/AP energetic composite particles, we prepared six different AlH3/AP energetic composites by wet-mixing after the ultrafine treatment of AP by a jet refiner based on the ...
Minjie Li, Chenyang Li, Yu Song, Chunyan Li, Wangjian Cheng, Chuanhao Xu, Ni Yun, Chongwei An   +7 more
doaj   +1 more source