Results 121 to 130 of about 1,405,172 (246)

A New Cyber Service is Not the Answer

The Cyber Defense Review
Debate over establishing a separate U.S. military Cyber Service has intensified as cyber threats grow in scale, speed, and strategic impact. Drawing on decades of senior leadership experience and recent operational reforms, this Senior Leader Perspective
Charlie Moore
doaj   +1 more source

How do Markets React to Fundamental Shocks? An Experimental Analysis on Underreaction and Momentum [PDF]

We perform a market experiment to investigate how average transaction prices react to the arrival of new information. Following a positive shock in fundamental value, prices underreact strongly; following negative shocks we find evidence of a much less ...
Weber, Martin, Welfens, Frank
core  

Sub‐Diffraction and Irreversibly Tunable Imaging With Potato Starch Lenses

Advanced Optical Materials, EarlyView.
Native potato starch granules function as sustainable birefringent microlenses that enable polarization‐controlled conventional and vortex lensing via spin‐to‐orbital angular momentum conversion. They provide sub‐diffraction and spiral‐contrast imaging, support vortex‐array generation with controllable topological‐charge sign, exhibit irreversible ...
Petr Bouchal, Jiří Liška, Petr Viewegh, Radim Chmelík, Tomáš Šikola, Zdeněk Bouchal   +5 more
wiley   +1 more source

Research on Dynamic Computing Power Network Transmission Optimization Based on DGNN-PPO and a Variant of the Polya Ball Method

Applied Sciences
To meet the growing computational demands of expanding intelligence application scenarios, computing networks are becoming increasingly complex. However, operational challenges such as frequent node online/offline events and dynamic link status changes ...
Ping He, Chunchao Liu, Luen Zhou, Shufu Cao   +3 more
doaj   +1 more source

Gradual Information Diffusion and Asset Price Momentum [PDF]

Gradual information diffusion model predicts that as private information travels across the population, pricing accuracy would improve and asset prices would exhibit momentum as a result.
Shengle Lin
core  

Piezoresistivity Enhancement by Graphite Flake Alignment in Thin Composite Films for Dielectric Elastomer Switches

Advanced Robotics Research, EarlyView.
This article presents dielectric elastomer switch (DES) materials, based on composite thin films. Alignment of graphite flakes due to their physical confinement within the thin films lead to much stronger piezoresistive responses than bulk composites, while their durability exceeds that of conventional liquid‐based DES materials.
Lingyu Liu, Thomas Kister, Bart‐Jan Niebuur, Tobias Kraus   +3 more
wiley   +1 more source

A Review of Airtanker Drop Characteristics, Effectiveness, and Future Research Directions

Fire
Aerial forest firefighting is a critical technology for wildfire suppression. Recent studies have examined suppression agent drop dynamics, deposition patterns, and optimization strategies. This review synthesizes advances from three perspectives: (i) in-
Ji Wu, Qiuze An, Jiang Huang, Wanki Chow, Yuanhua He   +4 more
doaj   +1 more source

Momentum-Space Topological Effects of Nonreciprocity

, 2018
The connection between topology and nonreciprocity in photonic systems is reviewed. Topological properties such as Chern number, and momentum-space properties such as Berry phase and Berry connection, are used to explain back-scattering immune edge ...
George W. Hanson (14416095), S. Ali Hassani Gangaraj (14406078)   +1 more
core   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source