Innovative dispersion techniques of graphene nanoplatelets (GNPs) through mechanical stirring and ultrasonication: impact on morphological, mechanical, and thermal properties of epoxy nanocomposites
Available online 1 May 2024
Graphene nanoplatelets (GNPs) have attracted tremendous interest due to their unique properties and bonding capabilities. This study focuses on the effect of GNP dispersion on the mechanical, thermal,...
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Kinetics and mechanism of the low-energy β-α phase transition of the second kind in 2,4-dinitroanisole
Available online 30 April 2024
In this work, comprehensive studies of 2,4-dinitroanisole (2,4DNAN) were carried out using powder thermorentgenography of the internal standard. The time of the complete polymorphic transition in the...
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Synergistic Effect of Nitrocellulose Coating on Structural and Reactivity Stabilization of Ammonium Nitrate Oxidizer
Available online 30 April 2024
The present work aims to stabilize the room temperature allotropic transition of ammonium nitrate (AN) particles utilizing a microencapsulation technique, which involves solvent/non-solvent in which...
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A critical review on solid-state welding of high entropy alloys– processing, microstructural characteristics and mechanical properties of joints
April 2024
The high entropy alloys (HEAs) are the newly developed high-performance materials that have gained significant importance in defence, nuclear and aerospace sector due to their superior mechanical properties,...
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A semantic vector map-based approach for aircraft positioning in GNSS/GPS denied large-scale environment
April 2024
Accurate positioning is one of the essential requirements for numerous applications of remote sensing data, especially in the event of a noisy or unreliable satellite signal. Toward this end, we present...
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Mitigating the negative catalytic effect of CuO by FAS-17 coated Al nanopowder: Isothermal ageing of Al/CuO nanothermite at 71 °C and 60% relative humidity
April 2024
The safety and reliability of weapon systems would be significantly affected by changes in the performance of energetic materials due to ambient temperature and humidity. Nanothermites have promising...
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Current optimization-based control of dual three-phase PMSM for low-frequency temperature swing reduction
April 2024
In this paper, a control scheme based on current optimization is proposed for dual three-phase permanent-magnet synchronous motor (DTP-PMSM) drive to reduce the low-frequency temperature swing. The...
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A reduced combustion mechanism of ammonia/diesel optimized with multi-objective genetic algorithm
April 2024
For the deep understanding on combustion of ammonia/diesel, this study develops a reduced mechanism of ammonia/diesel with 227 species and 937 reactions. The sub-mechanism on ammonia/interactions of...
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Automatic modulation recognition of radio fuzes using a DR2D-based adaptive denoising method and textural feature extraction
April 2024
The identification of intercepted radio fuze modulation types is a prerequisite for decision-making in interference systems. However, the electromagnetic environment of modern battlefields is complex,...
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Observer-based robust high-order fully actuated attitude autopilot design for spinning glide-guided projectiles
April 2024
This paper investigates the design of an attitude autopilot for a dual-channel controlled spinning glide-guided projectile (SGGP), addressing model uncertainties and external disturbances. Based on...
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Development of an experimental method for well-controlled blast induced traumatic limb fracture in rats
April 2024
Heterotopic ossification (HO) is a consequence of traumatic bone and tissue damage, which occurs in 65% of military casualties with blast-associated amputations. However, the mechanisms behind blast-induced...
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Isomeric fluorescence sensors for wide range detection of ionizing radiations
April 2024
In order to achieve a wider range of ionizing radiations detection, novel fluorescence sensing materials have been developed that utilize the fluorescence enhancement phenomenon caused by the intramolecular...
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Mastering air combat game with deep reinforcement learning
April 2024
Reinforcement learning has been applied to air combat problems in recent years, and the idea of curriculum learning is often used for reinforcement learning, but traditional curriculum learning suffers...
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Assessing target optical camouflage effects using brain functional networks: A feasibility study
April 2024
Brain functional networks model the brain's ability to exchange information across different regions, aiding in the understanding of the cognitive process of human visual attention during target searching,...
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Reinforcement learning based adaptive control for uncertain mechanical systems with asymptotic tracking
April 2024
This paper mainly focuses on the development of a learning-based controller for a class of uncertain mechanical systems modeled by the Euler-Lagrange formulation. The considered system can depict the...
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Suppression of low-frequency ultrasound broadband vibration using star-shaped single-phase metamaterials
April 2024
In order to suppress the low-frequency ultrasound vibration in the broadband range of 20 kHz–100 kHz, this paper proposes and discusses an acoustic metamaterial with low-frequency ultrasound vibration...
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Double casing warhead with sandwiched charge: The axial distribution of fragments velocities
April 2024
The double casing warhead with sandwiched charge is a novel fragmentation warhead that can produce two groups of fragments with different velocity, and the previous work has presented a calculation...
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Towards complex scenes: A deep learning-based camouflaged people detection method for snapshot multispectral images
April 2024
Camouflaged people are extremely expert in actively concealing themselves by effectively utilizing cover and the surrounding environment. Despite advancements in optical detection capabilities through...
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Construction of core@double-shell structured energetic composites with simultaneously enhanced thermal stability and safety performance
April 2024
The poor thermal stability and high sensitivity severely hinder the practical application of hexanitrohexaazaisowurtzitane (CL-20). Herein, a kind of novel core@double-shell CL-20 based energetic composites...
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A novel multi-resolution network for the open-circuit faults diagnosis of automatic ramming drive system
April 2024
The open-circuit fault is one of the most common faults of the automatic ramming drive system (ARDS), and it can be categorized into the open-phase faults of Permanent Magnet Synchronous Motor (PMSM)...
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Design, preparation, and characterization of a novel ZnO/CuO/Al energetic diode with dual functionality: Logic and destruction
April 2024
Self-destructing chips have promising applications for securing data. This paper proposes a new concept of energetic diodes for the first time, which can be used for self-destructive chips. A simple...
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A low-profile metamaterial absorber with ultrawideband reflectionless and wide-angular stability
April 2024
An ultrawideband reflectionless metamaterial absorber (MA) is proposed by replacing the metallic ground with the complementary split-ring resonator (CSRR) structure. The proposed MA exhibits −10 dB...
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Assessment of portable FTIR and Raman spectroscopy for the detection of 2,3-dimethyl-2,3-dinitrobutane (DMDNB) in plastic explosives
April 2024
The Marplex Convention was established to prevent the manufacture of unmarked plastic explosives and stipulates that a volatile detection agent must be added at the time of manufacture. However, to-date,...
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Ballistic performance of spaced multi-ply soft fabrics: Experimental and numerical investigation
April 2024
It has been reported that the ply gap influences the ballistic resistance of spaced multi-ply fabric systems, but its working mechanism was not well-understood. This paper reports the experimental and...
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Study of damage behavior and repair effectiveness of patch repaired carbon fiber laminate under quasi-static indentation loading
April 2024
Damage caused due to low-velocity impacts in composites leads to substantial deterioration in their residual strength and eventually provokes structural failure. This work presents an experimental investigation...
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