Search results for "space"
showing 10 items of 21658 documents
Complex dynamics, hidden attractors and continuous approximation of a fractional-order hyperchaotic PWC system
2018
In this paper, a continuous approximation to studying a class of PWC systems of fractionalorder is presented. Some known results of set-valued analysis and differential inclusions are utilized. The example of a hyperchaotic PWC system of fractional order is analyzed. It is found that without equilibria, the system has hidden attractors.
Délimitation d'ensembles morphologiques par une approche multi-échelle
2008
The paper deals with the identification of the envelope of built-up patterns that we define as the limit of a morphologically coherent set through the scales. The point of view is purely morphological; it refers to a multi-scale approach. Besides the description of the context of the research (that is the urban-rural delimitation) the paper is dedicated to the presentation of the methodological principles which allow the identification of the envelope of built-up patterns. The first step of the methodology, that is the step by step dilation of a studied built-up pattern, is briefly described. The emphasis is placed on the second step of the methodology that is the identification of a thresh…
Seasonal Modulation of the $^7$Be Solar Neutrino Rate in Borexino
2017
We detected the seasonal modulation of the $^7$Be neutrino interaction rate with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy. The period, amplitude, and phase of the observed time evolution of the signal are consistent with its solar origin, and the absence of an annual modulation is rejected at 99.99\% C.L. The data are analyzed using three methods: the sinusoidal fit, the Lomb-Scargle and the Empirical Mode Decomposition techniques, which all yield results in excellent agreement.
On Apache Log4j2 Exploitation in Aeronautical, Maritime, and Aerospace Communication
2022
Apache Log4j2 is a prevalent logging library for Java-based applications. In December 2021, several critical and high-impact software vulnerabilities, including CVE-2021-44228, were publicly disclosed, enabling remote code execution (RCE) and denial of service (DoS) attacks. To date, these vulnerabilities are considered critical and the consequences of their disclosure far-reaching. The vulnerabilities potentially affect a wide range of internet of things (IoT) devices, embedded devices, critical infrastructure (CI), and cyber-physical systems (CPSs). In this paper, we study the effects and feasibility of exploiting these vulnerabilities in mission-critical aviation and maritime environment…
Rola logistyki miasta w kształtowaniu przestrzeni publicznej na przykładzie Opola
2019
Jedną z podstawowych funkcji miasta jest zapewnienie mieszkańcom obszaru do rekreacji, wypoczynku i zacieśniania więzi społecznych. Obecnie szybki rozwój terenów zurbanizowanych utrudnia aranżowanie przyjaznych przestrzeni publicznych. Sposobem na ich stworzenie mogą stać się narzędzia i rozwiązania wypracowane w ramach logistyki miasta, która jako jeden z celów przyjmuje zaspokajanie potrzeb mieszkańców, podkreślając znaczenie miasta jako organizacji społecznej. Celem niniejszego opracowania jest identyfikacja roli logistyki w kreowaniu przestrzeni publicznej na obszarze zurbanizowanym.
Il logo e il luogo. Genealogia di Fico
2020
Analyzing the semiotic dimension of Fico, an agri-food park near Bologna, we can see a structure of the space that makes a large use of branding strategies. Fico takes up and amplifies some trends already present in unconventional restaurants; so it is necessary to go back at least to McDonald's to reconstruct its genealogy. Having overcome the opposition between fast and slow food, after Eataly and Expo 2015 Fico tries to put on display the entire agri-food chain, but only partially succeeds. Rather than brand niche products, Fico explicitly opens up to the world of large-scale food distribution. The semiotic analysis of space provides useful demonstrations in this regard.
Separation of atomic and molecular ions by ion mobility with an RF carpet
2021
Gas-filled stopping cells are used at accelerator laboratories for the thermalization of high-energy radioactive ion beams. Common challenges of many stopping cells are a high molecular background of extracted ions and limitations of extraction efficiency due to space-charge effects. At the FRS Ion Catcher at GSI, a new technique for removal of ionized molecules prior to their extraction out of the stopping cell has been developed. This technique utilizes the RF carpet for the separation of atomic ions from molecular contaminant ions through their difference in ion mobility. Results from the successful implementation and test during an experiment with a 600~MeV/u $^{124}$Xe primary beam are…
da luce a Luce
2012
La luce, come alternativo elemento al ‘fuoco’ insieme a ‘terra’, ‘vento’ e ‘acqua’ costituiscono i punti di riflessione nel cui intorno indagano le ricerche e le azioni dell’INBAR -Istituto Nazionale di BioARchitettura- che con il primo BioLaboratorio dal titolo “Catturiamo il Sole”, tenutosi presso Alcamo, 12.10.2012, ha visto la partecipazione di vari studiosi ed esperti di settore, moderati dal Presidente del Comitato Scientifico INBAR Sezione di Trapani, Prof. G. De Giovanni. In particolare, il contributo di E. W. Angelico ha inteso indagare sulle varie forme della luce: fra naturale e artificiale, diretta e indiretta. L’Architettura si dota spesso di ogni azione volta a porre in giusta…
The ALHAMBRA survey: B -band luminosity function of quiescent and star-forming galaxies at 0.2 ≤ z < 1 by PDF analysis
2016
[Aims]: Our goal is to study the evolution of the B-band luminosity function (LF) since z ∼ 1 using ALHAMBRA data. [Methods]: We used the photometric redshift and the I-band selection magnitude probability distribution functions (PDFs) of those ALHAMBRA galaxies with I ≤ 24 mag to compute the posterior LF. We statistically studied quiescent and star-forming galaxies using the template information encoded in the PDFs. The LF covariance matrix in redshift - magnitude - galaxy type space was computed, including the cosmic variance. That was estimated from the intrinsic dispersion of the LF measurements in the 48 ALHAMBRA sub-fields. The uncertainty due to the photometric redshift prior is also…
Euclid preparation. XII. Optimizing the photometric sample of the Euclid survey for galaxy clustering and galaxy-galaxy lensing analyses
2021
Pocino, A., et al. (Euclid Collaboration)