Results 51 to 60 of about 1,551 (188)

Machine Learning in Combustion: Optimization of Fuel Combustion of Rockets

Acceleron Aerospace Journal
Application of Machine Learning (ML) Techniques in research has seen a drastic increase in past few years and the main aspect of it in the rocket propulsion is to understand the combustion process and finding various methos to optimize it. This paper provides an overview of the relationship between machine learning and combustion with a specific focus ...
Nobendu Sen, Janardhan Kamath S, Gautham M Nair, A. Immanuel Selvakumar   +3 more
openaire   +1 more source

Europium‐ and dysprosium‐modified strontium aluminate: A luminescent marker system for enhanced gunshot residue detection

Journal of Forensic Sciences, Volume 71, Issue 4, Page 1607-1620, July 2026.
Abstract Forensic ballistics is essential in analyzing evidence from firearm use in criminal investigations, with gunshot residue (GSR) detection providing key information about the firearm and shooting conditions. Traditional methods like spectroscopy and scanning electron microscopy (SEM) have limitations in sensitivity, cost, and accessibility ...
Paulo Tonin, Cesar Aguzzoli, Sidnei Moura   +2 more
wiley   +1 more source

Heat‐Resistant Copper Alloys for Extreme Thermal Environments: Mechanisms, Architectures, and Design Strategies

cMat, Volume 3, Issue 2, June 2026.
ABSTRACT Copper (Cu) and copper‐based alloys are indispensable in high‐heat‐flux systems, such as aerospace propulsion, fusion reactors, and advanced power electronics, due to their high thermal conductivity and good manufacturability. However, extreme service conditions increasingly demand not only high thermal conductivity but also elevated ...
Yicheng Cao, Wenjing Zhang, Zhen Yang, Zengde Li, Yunqing Zhu, Jeehyuk Ahn, Lijun Peng, Haofeng Xie, Xujun Mi   +8 more
wiley   +1 more source

3D printed hybrid rocket fuels with μAl core-shell particles coated with polyvinylidene fluoride and polydopamine: Enhanced combustion characteristics

Defence Technology
3D printing technology enhances the combustion characteristics of hybrid rocket fuels by enabling complex geometries. However, improvements in regression rates and energy properties of monotonous 3D printed fuels have been limited.
Qihang Chen, Xiaolong Fu, Weitao Yang, Suhang Chen, Zhiming Guo, Rui Hu, Huijie Zhang, Lianpeng Cui, Xu Xia   +8 more
doaj   +1 more source

Kinetic Compensation of Barrel Launch Under High‐Speed Solid‐Phase Particulate Impacts

International Journal of Mechanical System Dynamics, Volume 6, Issue 2, Page 313-326, June 2026.
ABSTRACT An accurate launch‐dynamics computational method is critical for barrel weapon service life assessment and multiphase physics field refinement. Given the lack of studies on the solid‐phase buildup behavior at the projectile base, this paper provides an improved method for calculating the launching dynamics under high pressure and high speed ...
Zhiyi He, Guolai Yang, Quanzhao Sun, Shuli Li   +3 more
wiley   +1 more source

Hydroxyl‐Terminated Polybutadiene‐Based Molding Powders as an Alternative Route for Manufacturing Pressed Polymer‐Bonded Explosives

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 6, Page 955-965, June 2026.
This study presents an alternative method to manufacture polymer‐bonded explosives by partially curing an HTPB‐based molding powder prior to compaction. The study shows that the length of partial cure time before compaction directly influenced the geometric fidelity, homogeneity, compressive strength, density, and internal microstructure.
Ismar L. Chew, Cole Stephens, Ellen Ma, Julio Hernandez, Monique S. McClain   +4 more
wiley   +1 more source

AI Revolution and Warfare: A New Paradigm Shift in Defence Procurement, Restructuring, Training, and Recruitment

Canadian Public Administration, Volume 69, Issue 2, Page 250-277, June 2026.
Abstract The war in Ukraine and Israel's successful operations have demonstrated the apparent shift in military operations, strategic defence spending, and innovations. Drawing parallels to the industrial revolution and how it slowly transferred military procurement, training, and deployment, the current study also highlights the AI revolution and the ...
Ehsan Jozaghi
wiley   +1 more source

Petropower in Law‐Enforcement Advertising at Super Bowl LIX

The Geographical Journal, Volume 192, Issue 2, June 2026.
Short Abstract This paper examines a recruitment commercial from the Super Bowl on 9 February 2025 in terms of its spectacularisation of petroleum's abiding yet volatile influence. The minute‐long piece on behalf of federal law enforcement indicates how the workings of power in the United States of America are entangled with the ubiquity of oil ...
Daniel A. Finch‐Race, Pancho Lewis
wiley   +1 more source

Factors Affecting Characteristic Length of the Combustion Chamber of Liquid Propellant Rocket Engines

Mehran University Research Journal of Engineering and Technology, 2019
Optimum characteristic length of the combustion chamber of liquid rocket engine is very important to get higher energy from the liquid propellants. Characteristic length is defined by the time required for complete burning of fuel.
Tajwali Khan, Ihtzaz Qamar
doaj  

Technology of computational analysis of the working process parameters of low-thrust rocket engines running on gaseous oxygen-hydrogen fuel with the use of ANSYS CFD

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
The paper presents the description of a mathematical model of the working process of a low-thrust rocket engine operating on gaseous oxygen-hydrogen fuel and some fragments of the technology of computational analysis of distribution of gas-dynamic ...
V. V. Ryzhkov, I. I. Morozov
doaj   +1 more source