Results 71 to 80 of about 38,940 (240)
Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone
Journal of Field Robotics, EarlyView.ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown +8 more
wiley +1 more source
Activatable smart contrast agents for photoacoustic imaging
Smart Molecules, EarlyView.This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh +5 more
wiley +1 more source
Current-induced gap opening in interacting topological insulator surfaces
, 2019 Two-dimensional topological insulators (TIs) host gapless helical edge states that are predicted to support a quantized two-terminal conductance. Quantization is protected by time-reversal symmetry, which forbids elastic backscattering.
Balram, Ajit C. +3 more
core +1 more source
Small Methods, EarlyView.Single‐walled carbon nanotubes (SWNTs) are promising for a wide range of applications. In particular, their exceptional electrical conductivity positions them as potential alternatives to traditional metal conductors. This review identifies the key mechanisms governing their conductivity within composites and proposes practical pathways for translating
Xiao Yu, Alex Adronov
wiley +1 more source
BioResources, 2016 Traditionally, the helmet shell has been used to provide protection against head injuries and fatalities caused by ballistic threats. In this study, because of the high cost of aramid fibres and the necessity for environmentally friendly alternatives, a ...
Suhad D. Salman +4 more
doaj +1 more source
Ballistic composites – protecting the protectors
Reinforced Plastics, 2017 It seems scarcely credible that thin polymer fibers, bound together in resin, can stop projectiles ranging from a hand-gun bullet to a high-power rifle round, but they can and have done so, saving many lives in the process. Composite body armor protects a wide range of civilians from security guards to police officers and from bailiffs to VIPs.
openaire +1 more source
Standardization in testing ballistic protection systems
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Even more than in other field of activities, standardization in ballistic protection is in trends of CEN/CENELEC declaration that “standards build trust”, promoting innovation and introduction of new, performant solutions based on test procedures and protocols that are able to point out quality and safety for such systems ...
G G Ojoc, C Pirvu, S Sandu, L Deleanu
openaire +1 more source
Wildlife Letters, EarlyView.This essay describes the context of big game hunting in the western United States in the twenty‐first century from a sociological perspective. Using Ogburn's theory of cultural lag as a guide, it explores the relationship of technology and capitalism to hunting.
Stephen L. Eliason
wiley +1 more source
Biomimetic design and impact simulation of Al2O3/Al composite armor based on armadillo shell
Scientific ReportsThe advancement of lightweight protective armors holds critical importance for enhancing the maneuverability and combat capabilities of helicopters. Leveraging insights from bionics, it provides a new idea for high-performance armor design. In this study,
Fulong Zhang +5 more
doaj +1 more source
The optimization of fiber-reinforced backpanel as a substrate for ceramic/composite ballistic inserts for personal protection [PDF]
, 2013 Pure fiber-reinforced polymer composites can give protection only of a certain level of ballistic threat i.e. only of small arms ammunition. For higher ballistic threat of high energy projectiles, ballistic inserts of ceramic tiles/composite back panel ...
Dimeski, Dimko, Srebrenkoska, Vineta
core