3,068 research outputs found

    On the New Notion of the Set-Expectation for a Random Set of Events

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    The paper introduces new notion for the set-valued mean set of a random set. The means are defined as families of sets that minimize mean distances to the random set. The distances are determined by metrics in spaces of sets or by suitable generalizations. Some examples illustrate the use of the new definitions.mean random set, metrics in set space, mean distance, Aumann expectation, Frechet expectation, Hausdorff metric, random finite set, mean set, set-median, set-expectation

    Adaptive Mesh Refinement for Electromagnetic Simulation

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    We consider problems related to initial meshing and adaptive mesh refinement for the electromagnetic simulation of various structures. The quality of the initial mesh and the performance of the adaptive refinement are of great importance for the finite element solution of the Maxwell equations, since they directly affect the accuracy and the computational time. In this paper, we describe the complete meshing workflow, which allows the simulation of arbitrary structures. Test simulations confirm that the presented approach allows to reach the quality of the industrial simulation software


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    Purpose of the study: The relevance of the article is due to the rethinking of employment by students and the emergence of new forms of income, due to the emergence of Internet resources.  Today, more and more people are revising their work schedules, switching to freelancing or so-called free employment, reducing working hours. In this regard, this article is aimed at studying students' ideas about the lifestyle of downshifters in an urban environment. Methodology: As a research methodology, a qualitative approach was applied using ethnographic strategies to dive into the world of everyday practices of informants and better understand how their daily lives are structured, which is especially important when studying ideas about lifestyle. A detailed description of the ideas about individual everyday practices allows us to identify the type in a social phenomenon. Method of information gathering - in-depth interview, which allows determining the main motives and beliefs of informants. Results: The article revealed that in the view of the majority of students, downshifters are satisfied with their lifestyle; travel a lot; have a low civil position, mainly carry out their household activities in solitude and are not married. It is shown that work for downshifters, in the view of students, should be enjoyable, and if this is not possible for any reason, it is fair for them to do work that does not lead to emotional and physical exhaustion. In the students' views, five groups of downshifters were identified: those who left well paid but stressful work; having the ability to work remotely; devoting more time to personal development; peaked careers and decided to change the profile of activity; transformed their hobby into a profession. Applications of this study: The data obtained in the work can be used in the field of labor and employment of young people, social psychology, the psychology of education, age psychology, sociology, as well as for further theoretical development of this issue. Novelty/Originality of this study: Because the phenomenon of downshifting is not sufficiently studied, and the concept has no clear definition, many people in the society can call themselves downshifters who are not really downshifters indeed, and Vice versa, many people do not realize themselves downshifters, being downshifters in fact. This seems to be a certain problem for studying this social group

    Efficiency of Finding Muon Track Trigger Primitives in CMS Cathode Strip Chambers

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    In the CMS Experiment, muon detection in the forward direction is accomplished by cathode strip chambers~(CSC). These detectors identify muons, provide a fast muon trigger, and give a precise measurement of the muon trajectory. There are 468 six-plane CSCs in the system. The efficiency of finding muon trigger primitives (muon track segments) was studied using~36 CMS CSCs and cosmic ray muons during the Magnet Test and Cosmic Challenge~(MTCC) exercise conducted by the~CMS experiment in~2006. In contrast to earlier studies that used muon beams to illuminate a very small chamber area (< ⁣0.01< \! 0.01~m2^2), results presented in this paper were obtained by many installed CSCs operating {\em in situ} over an area of ≈ ⁣23\approx \! 23~m2^2 as a part of the~CMS experiment. The efficiency of finding 2-dimensional trigger primitives within 6-layer chambers was found to be~99.93±0.03%99.93 \pm 0.03\%. These segments, found by the CSC electronics within 800800~ns after the passing of a muon through the chambers, are the input information for the Level-1 muon trigger and, also, are a necessary condition for chambers to be read out by the Data Acquisition System

    Les droits disciplinaires des fonctions publiques : « unification », « harmonisation » ou « distanciation ». A propos de la loi du 26 avril 2016 relative à la déontologie et aux droits et obligations des fonctionnaires

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    The production of tt‟ , W+bb‟ and W+cc‟ is studied in the forward region of proton–proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98±0.02 fb−1 . The W bosons are reconstructed in the decays W→ℓΜ , where ℓ denotes muon or electron, while the b and c quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.The production of tt‟t\overline{t}, W+bb‟W+b\overline{b} and W+cc‟W+c\overline{c} is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 ±\pm 0.02 \mbox{fb}^{-1}. The WW bosons are reconstructed in the decays W→ℓΜW\rightarrow\ell\nu, where ℓ\ell denotes muon or electron, while the bb and cc quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

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    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

    Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation