Results 161 to 170 of about 24,584 (299)

Modern weapons and military equipment

Vojnotehnicki glasnik, 2022
openaire   +2 more sources

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

Propellants, Explosives, Pyrotechnics, EarlyView.
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

Dental Caries, Erosive Tooth Wear, and Periodontal Status of Military Student Pilots in Finland: A Comparative Cross-Sectional Study. [PDF]

Mil Med
Muhonen A, Tanner T, Päkkilä J, Huttunen M, Räsänen S, Moilanen P, Patinen P, Leino T, Tjäderhane L, Anttonen V, Kämppi A.   +10 more
europepmc   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Dual-Gradient Impedance/Insulation Structured Polyimide Nonwoven Fabric for Multi-Band Compatible Stealth. [PDF]

Nanomicro Lett
Tang X, Hong W, Gao H, Li S, Li W, Lai K, Xu M, Hu Z, Li Y, Wang Z, Liu T.   +10 more
europepmc   +1 more source

Surface Roughening of Irradiation-Activated Basalt Fiber through In Situ Growth of SiO₂: Effects on Crystallization and Properties of PP Composites. [PDF]

Materials (Basel), 2023
Zhang S, He P, Jing S, Chen G, Li G, Wang Z, Han R, Li Y.   +7 more
europepmc   +1 more source

Estimating Rain‐Specific Attenuation at Extremely High Frequencies From Disdrometer Measurements at Various Climate Zones in the US

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The raindrop size distribution (DSD) plays an essential role in understanding rain attenuation effects at extremely high frequencies (EHFs). Over 1 year of DSD measurements was taken at different Köppen–Geiger climate classifications within the United States. Optical disdrometers from Thies Clima were used to measure both the size and velocity
Eugene S. Hong, George Brost, Nicholas Tarasenko, Steven A. Lane   +3 more
wiley   +1 more source

Deep residual network enhanced with multilevel residual-of-residual for automatic classification of radio signals for 5G and beyond systems. [PDF]

Sci Rep
Jabeur R, Alaerjan A, Chikha HB.
europepmc   +1 more source

Investigating the molecular mechanisms of delirium-like neuropsychiatric disorder induced by electromagnetic pulse based on bioinformatics analysis. [PDF]

Mol Brain, 2023
Zhang XJ, Xiao ZB, Gu JX, Chen K, Wang J, Xu SL, Xing KK, Chen T.   +7 more
europepmc   +1 more source

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source