38,002 research outputs found
D.H. LAWRENCE AND LITERARY GENRES
No full textD. H. Lawrence's works cover most literary genres, and problems connected to the theory of genre are often discussed in his essays. However, nowadays criticism tends to call into question the old categories, those of literary genres included, and a major question today is whether Lawrence can be read in new ways and whether his works can still respond to the new configuration of our multicultural world. Indeed, Lawrence’s writings show moments in which he assumes a non-Eurocentric point of view calling into question the most consolidated certainties of the western world
An Innovative Mission Management System for Fixed-Wing UAVs
No full textThis paper presents two innovative units linked together to build the main frame of a UAV Mis- sion Management System. The first unit is a Path Planner for small UAVs able to generate optimal paths in a tridimensional environment, generat- ing flyable and safe paths with the lowest com- putational effort. The second unit is the Flight Management System based on Nonlinear Model Predictive Control, that tracks the reference path and exploits a spherical camera model to avoid unpredicted obstacles along the path. The control system solves on-line (i.e. at each sampling time) a finite horizon (state horizon) open loop optimal control problem with a Genetic Algorithm. This algorithm finds the command sequence that min- imizes the tracking error with respect to the ref- erence path, driving the aircraft far from sensed obstacles and towards the desired trajectory
CalculusofVariations. – TheSobolevclasswhereaweaksolutionisalocalminimizer, by Filomena De Filippis, Francesco Leonetti, Paolo Marcellini and Elvira Mascolo, communicated on 10 February 2023
No full textThe aim of this paper is to propose some results which we hope could contribute to understand better Lavrentiev’s phenomenon for energy integrals as in (1.1) under some p; q-growth conditions as in (1.2); in fact, we expect that Lavrentiev’s phenomenon does not occur if the quotient q=p is not too large in dependence of n, for instance, as in the cases – either scalar or vectorial ones – that we consider in this manuscript
Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension
No full textWe prove higher summability for the gradient of minimizers of strongly convex
integral functionals of the Calculus of Variations
ˆ
Ω
f(x, Du(x)) dx, u : Ω ⊂ R
n → S
N−1
,
with growth conditions of (p, q)-type:
|ξ|
p ≤ f(x, ξ) ≤ C(|ξ|
q + 1), p < q,
in low dimension. Our procedure is set in the framework of Fractional Sobolev
Spaces and renders the desired regularity as the result of an approximation technique
relying on estimates obtained through a careful use of difference quotients
Partial regularity for manifold constrained p(x)-harmonic maps
No full textWe prove that manifold constrained p(x)-harmonic maps are locally C1,β0-regular outside a set of zero n-dimensional Lebesgue’s measure, for some β∈ (0 , 1). We also provide an estimate from above of the Hausdorff dimension of the singular set
On a Functional Identity Involving Power Values of Generalized Skew Derivations on Lie Ideals
No full textLet R be a prime ring, Qr its right Martindale quotient ring and C its extended centroid. Suppose that F is a generalized skew derivation of R, L a non-central Lie ideal of R, m,n,s≥1 positive fixed integers. If F(u)n(F(u)m-um)s=0for all u∈L, then there exists λ∈C such that F(x)=λx, for any x∈R, with λm=1, unless when char(R)=2 and R⊆M2(K), the ring of 2×2 matrices over a field K. We will also provide a generalization of the previous result for semiprime rings. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024
Test beam analysis of the effect of highly ionizing particles on the CMS Silicon Strip Tracker
No full textHighly ionizing particles (HIPs) created by nuclear interactions in the silicon sensors cause a large signal which can saturate the APV readout chip used in the CMS Silicon Tracker system. This phenomenon was studied in two different beam-tests performed at PSI and at the CERN X5 experimental areas in 2002. The probability of a HIP-like event to occur per incident pion was measured and the dependence of the APV capability to detect a MIP signal on the time required to recover from such an event is derived. From these results, the expected inefficiency of the CMS Tracker due to HIPS is inferred
The CMS analysis chain in a distributed environment
No full textThe CMS collaboration is undertaking a big effort to define the analysis model and to develop software tools with the purpose of analysing several millions of simulated and real data events by a large number of people in many geographically distributed sites. From the computing point of view, one of the most complex issues when doing remote analysis is the data discovery and access. Some software tools were developed in order to move data, make them available to the full international community and validate them for the subsequent analysis. The batch analysis processing is performed with workload management tools developed on purpose, which are mainly responsible for the job preparation and the job submission. The job monitoring and the output management are implemented as the last part of the analysis chain. Grid tools provided by the LCG project are evaluated to gain access to the data and the resources by providing a user friendly interface to the physicists submitting the analysis jobs. An overview of the current implementation and of the interactions between the previous components of the CMS analysis system is presented in this work
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