Search results for "war"
showing 10 items of 11970 documents
Insecure Firmware and Wireless Technologies as “Achilles’ Heel” in Cybersecurity of Cyber-Physical Systems
2022
In this chapter, we analyze cybersecurity weaknesses in three use-cases of real-world cyber-physical systems: transportation (aviation), remote explosives and robotic weapons (fireworks pyrotechnics), and physical security (CCTV). The digitalization, interconnection, and IoT-nature of cyber-physical systems make them attractive targets. It is crucial to ensure that such systems are protected from cyber attacks, and therefore it is equally important to study and understand their major weaknesses. peerReviewed
Joint Subcarrier and Phase Shifts Optimization for RIS-aided Localization-Communication System
2022
Joint localization and communication systems have drawn significant attention due to their high resource utilization. In this paper, we consider a reconfigurable intelligent surface (RIS)-aided simultaneously localization and communication system. We first determine the sum squared position error bound (SPEB) as the localization accuracy metric for the presented localization-communication system. Then, a joint RIS discrete phase shifts design and subcarrier assignment problem is formulated to minimize the SPEB while guaranteeing each user’s achievable data rate requirement. For the presented non-convex mixed-integer problem, we propose an iterative algorithm to obtain a suboptimal solution …
Flat-band superconductivity in strained Dirac materials
2016
We consider superconducting properties of a two-dimensional Dirac material such as graphene under strain that produces a flat band spectrum in the normal state. We show that in the superconducting state, such a model results in a highly increased critical temperature compared to the case without the strain, inhomogenous order parameter with two-peak shaped local density of states and yet a large and almost uniform and isotropic supercurrent. This model could be realized in strained graphene or ultracold atom systems and could be responsible for unusually strong superconductivity observed in some graphite interfaces and certain IV-VI semiconductor heterostructures.
The Supranational Dimension in Max Weber’s Vision of Politics
2019
Max Weber analyzed politics from the perspective of Chancen for actors, and he never separated world politics from domestic politics. The “Westphalian balance” between great European powers shaped Weber’s views on international polity. However, he also regarded Western individualism, human rights, and parliamentary democracy as necessary qualities to possess in order to be recognized as a great power. This vision provided the basis for his wartime critique of the expansionist tendencies in German foreign policy and for his demand for the parliamentarization of German politics. After the end of World War I, Weber used Woodrow Wilson’s idea of the League of Nations as the basis for a proposal…
Brexit and war rhetoric, an electoral stategy?
2021
International audience; The English language is replete with bellicose expressions and references to different battles and wars involving British armed forces, in particular World War Two. This point was highlighted recently by the current occupant of 10 Downing Street, Boris Johnson, who remarked that "military metaphors are old parliamentary standard practice." 1 Many such terms have entered the everyday lexicon of most Eurosceptics and Brexiteers alike. They had already become common currency in anti-European rhetoric since the 1990s, but have reached a greater level of intensity in the last four years since the Brexit referendum, when these groups or individuals discuss or denounce the …
Automatic surrogate modelling technique selection based on features of optimization problems
2019
A typical scenario when solving industrial single or multiobjective optimization problems is that no explicit formulation of the problem is available. Instead, a dataset containing vectors of decision variables together with their objective function value(s) is given and a surrogate model (or metamodel) is build from the data and used for optimization and decision-making. This data-driven optimization process strongly depends on the ability of the surrogate model to predict the objective value of decision variables not present in the original dataset. Therefore, the choice of surrogate modelling technique is crucial. While many surrogate modelling techniques have been discussed in the liter…
The Level of Environmental Awareness as a Determinant of Attitudes and Behaviors Developed by Inhabiltans of Towns and Villages – a Comparative Case …
2017
Today, the more and more intensive use of natural resources and consequent environmental degradation have made the issue of sustainable development a central place in many discussions going on in scientific circles. In this light, ecological awareness, as well as pro-ecological attitudes and behaviors of people seem to be only too significant. The aim of this article is to present the results of research conducted among the inhabitants of the Municipality of Zawadzkie, Opole Voivodeship. The study examined the relation between the level of environmental awareness and manifestations of environmental attitudes and behaviors. The obtained results were also subjected to a comparative analysis o…