Search results for " Obstacle"
showing 8 items of 18 documents
An Intelligent Car Driver for safe Navigation with Fuzzy Obstacle Avoidance.
2009
In order to respond effectively to the environment uncertainties, autonomous vehicles are generally equipped with sensors. The proposed car guidance system is equipped with an intelligent controller, based on fuzzy logic, which calculates the speed and wheels orientation in order to follow a path while it is avoiding unknown obstacles. Better fluidity of driving are obtained using future-path, car dimension and car position prevision. Vehicle symmetries also speed-up and simplify the guidance system reducing the inputs and the rules numbers.
Research Regarding Physical Testing in the Military Pentathlon at the 50 M Race with Obstacles
2019
Abstract The research started from the necessity of finding new ways to physical test the military students that are part of the military pentathlon 50 m race with obstacles team. The research methods used was the experiment method, using two groups: the first group was the control group and the second the experiment group. The experiment consisted in testing the students at: 50 m speed running, 800 m resistance running, push-ups, and specific testing like: 50 m swimming with obstacles, 8 km run in varied terrain. The results of our investigation showed that calculation of the statistical significance of the differences between the averages of the two samples showed significant values at p&…
Irregular Time Dependent Obstacles
2010
Abstract We study the obstacle problem for the Evolutionary p-Laplace Equation when the obstacle is discontinuous and does not have regularity in the time variable. Two quite different procedures yield the same solution.
Cambios en el comercio exterior de los países del este. La difícil reinserción en Europa
1999
Changes in the foreign trade of the countries of the East. The difficult assimilation into Europe. The direction of the trading lines of the post-communist countries has been modified by the political and economical changes of the countries of the East of Europe, the dismantling of the COMECON, as well as by the disintegration of the USSR and the detente in the international relationships. During the forty years that the COMECON was prevailing, that region centred its attention on the USSR, but nowadays the East looiks at the West, concretaly at the European Union and more exactly at Germany. The composition of the imports and exports reveals the marked dependence on Central and Eastern Eur…
Le non-public et la culture. Une étude de cas en banlieue
2012
Photographic exhibitions are organized since 2004 on the banks of the river Marne at Fleury-la-Rivière within the context of an annual event --the Festival de l'Oh!, initiated by the conseil général of the Val-de-Marne. This type of exhibition does not succeed in attracting the "non-public". The representations held by the people concerned can block their interaction with the works presented on such a public space. This study is part of an on-going general study of the non-public and its relation to culture. This is a qualitative study carried out in various "stops" of the Festival de l'Oh! The paper is only concerned with immigrants met in housing estates in the upper districts of Fleury.
Partial data inverse problems and simultaneous recovery of boundary and coefficients for semilinear elliptic equations
2021
We study various partial data inverse boundary value problems for the semilinear elliptic equation $\Delta u+ a(x,u)=0$ in a domain in $\mathbb R^n$ by using the higher order linearization technique introduced in [LLS 19, FO19]. We show that the Dirichlet-to-Neumann map of the above equation determines the Taylor series of $a(x,z)$ at $z=0$ under general assumptions on $a(x,z)$. The determination of the Taylor series can be done in parallel with the detection of an unknown cavity inside the domain or an unknown part of the boundary of the domain. The method relies on the solution of the linearized partial data Calder\'on problem [FKSU09], and implies the solution of partial data problems fo…
Obstacles to the problematization of time in an interdisciplinary approach: the explanation of some natural phenomena by Tunisian students and teache…
2009
This research focuses on learning and teaching of biology and geology by students and teachers. The use of geological time in the explanation of some natural phenomena by learners is difficult. We use an epistemological reflection on the teaching and study of this concept in an interdisciplinary approach by using elements of history and philosophy of science. An accurate diagnosis of the difficulties of learners through many research methods let us understand their problems and suggest strategies to facilitate the acquisition not only the concept of time but also other concepts in science. The main objectif of this research is to identify epistemological obstacles to problematization of tim…
El crimen de agresión : ¿es posible su persecución judicial internacional?
2021
The paper analyses the crime of aggression, in particular the recent activation of the jurisdiction of the International Criminal Court over it and the main obstacles to its effective prosecution, taking into consideration the low number of States Parties that have ratified the Amendments that regulate it