Results 1 to 10 of about 359,787 (159)

NEW THREATS TO THE NATIONAL SECURITY OF STATES – CYBER THREAT [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2020
Globalisation brought an electronic communications reliance, as well as some repercussions on the world’s states, mainly in the sphere of cyber security. In recent years after the events in Ukraine, the cyber threat became a certainty and risk.
Daniel-Cornel ŞTEFĂNESCU, Alina PAPOI
doaj   +1 more source

Global Traps for the Russian Innovation System

open access: yesМир новой экономики, 2020
The features of the transformation of national innovation systems into an instrument of the dominance of conservative leaders of technologically developed markets are described. The difference in institutional conditions in the activities of companies in
A. A. Blokhin, A. G. Fonotov
doaj   +1 more source

Silicon-Based Graphene Electro-Optical Modulators

open access: yesPhotonics, 2022
With the increasing demand for capacity in communications networks, the use of integrated photonics to transmit, process and manipulate digital and analog signals has been extensively explored.
Ming Jin   +6 more
doaj   +1 more source

Microcomb-based integrated photonic processing unit

open access: yesNature Communications, 2023
Optical neural networks face remarkable challenges in high-level integration and on-chip operation. In this work the authors enable optical convolution utilizing time-wavelength plane stretching approach on a microcomb-driven chip-based photonic ...
Bowen Bai   +13 more
doaj   +1 more source

The Shortest-Edge Duplication of Triangles

open access: yesMathematics, 2022
We introduce a new triangle transformation, the shortest-edge (SE) duplication, as a natural way of mesh derefinement suitable to those meshes obtained by iterative application of longest-edge bisection refinement. Metric properties of the SE duplication
Miguel Ángel Padrón   +3 more
doaj   +1 more source

Systems on Board the NATO E-3A Platform

open access: yesBuletinul Ştiinţific al Academiei Trupelor de Uscat, 2020
The article highlights the importance of the systems on board the NATO E-3A platform and how they influence the mission and work of the aircrew. The E-3A is an Airborne Early Warning & Control (AEW&C) system designed to provide early warning information ...
Iordache Mihai
doaj   +1 more source

Recent Progress in Silicon-Based Slow-Light Electro-Optic Modulators

open access: yesMicromachines, 2022
As an important optoelectronic integration platform, silicon photonics has achieved significant progress in recent years, demonstrating the advantages on low power consumption, low cost, and complementary metal–oxide–semiconductor (CMOS) compatibility ...
Changhao Han   +4 more
doaj   +1 more source

A Multimedia Data Visualization Based on Ad Hoc Communication Networks and Its Application to Disaster Management

open access: yesISPRS International Journal of Geo-Information, 2015
After massive earthquakes and other large-scale disasters, existing communication infrastructure may become unavailable and, therefore, it can be quite difficult for relief organizations to fully grasp the impact of the disaster on the affected region ...
Youhei Kawamura   +7 more
doaj   +1 more source

Asymmetric shape of distal phalanx of human finger improves precision grasping

open access: yesScientific Reports, 2021
In morphology field, the functions of an asymmetric-shaped distal phalanx in human finger have only been inferred. In this study, we used an engineering approach to empirically examine the effects of the shape of distal phalanx on the ability of ...
Ayane Kumagai   +5 more
doaj   +1 more source

Harnessing microcomb-based parallel chaos for random number generation and optical decision making

open access: yesNature Communications, 2023
Optical chaos is vital for various applications such as private communication, encryption, anti-interference sensing, and reinforcement learning. Chaotic microcombs have emerged as promising sources for generating massive optical chaos.
Bitao Shen   +12 more
doaj   +1 more source

Home - About - Disclaimer - Privacy