Results 81 to 90 of about 143,533 (301)

Noisy Politics, Quiet Technocrats: Strategic Silence by Central Banks

Regulation &Governance, EarlyView.
ABSTRACT In contrast to the “quiet” politics of the pre‐2008 period, macroeconomic policy has become “noisy”. This break raises a question: How do independent agencies designed for quiet politics react when a contentious public turns the volume up on them?
Benjamin Braun, Maximilian Düsterhöft
wiley   +1 more source

Launch vehicle performance using metallized propellants [PDF]

Metallized propellant propulsion systems are considered as replacements for the solid rocket boosters and liquid sustainer stages on the current launch vehicles: both the Space Transportation System (STS) and the Titan 4.
Palaszewski, Bryan A., Powell, Richard
core   +1 more source

Mechanical and Combustion Performance of Multi-Walled Carbon Nanotubes as an Additive to Paraffin-Based Solid Fuels for Hybrid Rockets [PDF]

, 2012
Paraffin-based solid fuels for hybrid rocket motor applications are recognized as a fastburning alternative to other fuel binders such as HTPB, but efforts to further improve the burning rate and mechanical properties of paraffin are still necessary. One
Boyer, Eric, Koo, Joseph H., Kuo, Kenneth, K., Larson, Daniel B., Story, George, Wachs, Trevor   +5 more
core   +1 more source

Safety Listening in High‐Risk Situations: A Qualitative Analysis of Responses to Safety Voice in Aviation

Risk Analysis, EarlyView.
ABSTRACT Safety listening—responses to voice acts aimed at preventing harm—can avert organizational failures like airplane crashes. Research often focuses on attitudes and perceptions of listening using self‐report measures; consequently, little is known about how safety listening occurs behaviorally and influences safety outcomes in high‐risk ...
Alyssa M. Pandolfo, Tom W. Reader, Alex Gillespie   +2 more
wiley   +1 more source

Validation of Integral Method for Numerical Prediction of Hybrid Rocket Internal Ballistics

Journal of Fluid Science and Technology, 2013
In order to design hybrid rocket engines, we developed a numerical prediction method which describes the internal ballistics, thus the solid fuel regression rate. In order to obtain a fast code, simple but efficient models have been implemented.
Yuki FUNAMI, Toru SHIMADA
doaj   +1 more source

Combustion synthesis of ultra‐high temperature ceramics: Review

International Journal of Applied Ceramic Technology, Volume 22, Issue 6, November/December 2025.
Abstract Novel and future‐oriented aerospace, energy, transportation, and other industrial technologies require materials capable of operating at temperatures above 2000°C. Ultra‐high temperature ceramic materials (UHTCs), based on carbides, borides, carbonitrides, and nitrides of transition metals—many with melting points exceeding 3000°C—possess the ...
Alexander S. Mukasyan, Alexander S. Rogachev   +1 more
wiley   +1 more source

Formulation and Testing of Paraffin-Based Solid Fuels Containing Energetic Additives for Hybrid Rockets [PDF]

, 2012
Many approaches have been considered in an effort to improve the regression rate of solid fuels for hybrid rocket applications. One promising method is to use a fuel with a fast burning rate such as paraffin wax; however, additional performance increases
Boyer, Eric, Kuo, Kenneth K., Larson, Daniel B., Story, George, Wachs,Trevor   +4 more
core   +1 more source

General method for prediction of thermal conductivity for well-characterized hydrocarbon mixtures and fuels up to extreme conditions using entropy scaling [PDF]

, 2019
A general and efficient technique is developed to predict the thermal conductivity of well-characterized hydrocarbon mixtures, rocket propellant (RP) fuels, and jet fuels up to high temperatures and high pressures (HTHP).
Akhmedova-Azizova, Arcoumanis, Arikol, Ashutosh Gupta, Assael, Assael, Assael, Assael, Assael, Baroncini, Baroncini, Baroncini, Baroncini, Battistoni, Briggs, Burgess, Chickos, Chung, Chung, Deng, Fareleira, Fareleira, Fouad, Gharagheizi, Gharagheizi, Gharagheizi, Giannadakis, Gross, Guo, Hopp, Houman B. Rokni, Huber, Huber, Huber, Jia, Joshua D. Moore, Kashiwagi, Kesler, Lashkarbolooki, Latini, Latini, Lazzús, Liang, Lötgering-Lin, Manolis Gavaises, Mark A. McHugh, Mathias, Nagvekar, Park, Pomraning, Rajendar R. Mallepally, Ramos-Pallares, Ramos-Pallares, Rastorguev, Rodenbush, Rokni, Rokni, Rosenfeld, Roy, Sastri, Sauer, Schilling, Schmidt, Stiel, Tamouza, Teja, Teja, Thi, Tihic, Wada, Wakeham, Wu, Xu   +72 more
core   +1 more source

Navigating the Waves: The Global Pandemic's Impact on Container Shipping and Freight Rates Across Different Policy Scenarios

Naval Research Logistics (NRL), Volume 72, Issue 7, Page 975-993, October 2025.
ABSTRACT The COVID‐19 pandemic has reverberated across global industries, including the international container shipping industry, where freight rates have become highly volatile. However, shipping lines appeared to thrive, particularly during the pandemic's initial 2 years.
Shiyuan Zheng, Changmin Jiang
wiley   +1 more source

Research on Ablation Device Suitable for Thermal Protection System of Solid Rocket Ramjet

Aerospace
In solid rocket propulsion systems, overload effects induced by aircraft maneuvers can lead to gas accumulation in the afterburning chamber, resulting in severe localized ablation of thermal insulation layers and significantly compromising overall ...
Jiming Cheng, Hang Yan, Xiping Feng, Guoqiang Zhu, Jie Liu, Xintong Qi   +5 more
doaj   +1 more source