In this paper we design a linear dynamic output feedback controller for a ball and beam system based on an iden-tiied neural state space model. This is done by applying dynamic backpropagation, constrained by NL q internal or I/O stability conditions. The performance of the controller has been tested on a real ball and beam setup .

Around forty years passed from the beginning of operation of the first electron-positron colliding beam facility VEPP-2 in Institute of Nuclear Physics (INP), Novosibirsk. Here I described development of electron-positron colliding beam project in INP, as well as advance of similar projects of the first generation at LAL, Orsay and at LNF, Frascati.

Fields of a radially polarized laser beam developed recently [Y. I. Salamin, Opt. Lett.31, 2619 (2006)] are employed to show that electrons produced by atomic ionization near the focus may be accelerated to GeV energies. Conditions for producing a mono-energetic and well-collimated electron beam are discussed.

I first review basic models for laser-plasma interaction that explain electron acceleration and beam confinement in plasma. Next, I discuss ponderomotive electron acceleration in infinite vacuum, showing that the transverse scattering angle of the accelerated electron may be kept small with a proper choice of parameters. I then analyze the direct (a.k.a. linear) acceleration of an electron in i...

The accurate resonance frequency of the transition (F, M ) = (4, 0) ++(3 , 0) in the ground state of cesium-l33 is expressed In the form of an operational equation f o r an atomic beam spectrometer. Emphasized are the terms in this equation which correct for the beam direction dependence and radiation field dependence of measured resonance frequencies: F where i and j refer to opposite beam dir...

At the Paul Scherrer Institute (PSI, Villigen, Switzerland) the new high-intensity muon beam line mE4 is currently being commissioned. It replaces the previous mE4 decay muon channel. The beam line with a design momentum of 28MeV=c has been planned to serve the needs of the low-energy, polarized positive muon source ðLE-mþÞ and LE-mSR spectrometer at PSI. A large acceptance is accomplished by i...

In this paper, a finite element modeling via ABAQUS/Explicit simulation on a novel fabrication miniature composite fuselage structure is presented. The fuselage structure is modeled as a continuum composite layup that consisted of a woven C-glass fiber/epoxy 200 g/m 2 composite laminated [908] with the orthotropic elastic material properties and adhesively bonded butt joint. The adhesively bond...

In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of northern sky. Our coverage is split into two regions centred at approximately 12h45m +44$^\circ$30' and 1h00m +28$^\circ$00' spanning 4178 1457 square degrees respectively. The were derived 3,451hrs (7.6PB) High Band Antenna which corrected for direction-independent instrumental propert...

This research is aimed at investigating the elastic buckling strength of I-beam cantilevers. In section classification and in design both, understanding load that beam can withstand without loss stability crucial, especially determining correct method analysis. The divided into segments which are investigated separately as plates. A novel approximation for plates with flexible boundary conditio...