In the framework of a multi-phase transport model (AMPT) with both partonic and hadronic interactions, azimuthal correlations between trigger particles and associated scattering particles have been studied by the mixing-event technique. The momentum ranges of these particles are 3 < p T < 6 GeV/c and 0.15 < p assoc T < 3 GeV/c (soft), or 2.5 < p trig T < 4 GeV/c and 1 < p T < 2.5 GeV/c (hard) i...

for a 16-bit uniprocessor. Under the weight of changing Abstract needs and technology, Unix has been modified to provide a staggering number of different mechanisms for managing obThe Mach operating system can be used as a system software kernel which can support a variety of operating jects and resources. In addition to pipes, Unix versions now system environments. Key elements of the Mach des...

In this paper, a simple, non-sensitive, robust, and accurate computational procedure is presented and it does not require a prior knowledge of a reference trajectory for computing the optimum trajectory for minimum-time-toclimb to a prescribed final altitude of a supersonic aircraft. From the program, we fnst generate the possible range of initial Mach numbers, initial altitudes and climb times...

A procedure for tailoring a blended wing-body con guration to reduce its computed wave drag is described. The method utilizes an iterative algorithm within the framework of rst-order linear theory. Four computed examples are included. In each case, the zero-lift wave drag was reduced without an increase in drag due to lift. Introduction In the initial rough-cut state of supersonic conguration d...

We investigate the hydrodynamics of threedimensional classical Bondi-Hoyle accretion. A totally absorbing sphere of different sizes (1, 0.1 and 0.02 accretion radii) moves at different Mach numbers (0.6, 1.4, 3.0 and 10) relative to a homogeneous and slightly perturbed medium, which is taken to be an ideal, nearly isothermal, gas ( = 1:01). We examine the influence of Mach number of the flow an...

In this work, a simple semi-empirical model is proposed, based on Response Surface Model, RSM, to determine the shape of an attached oblique shock wave emanating from a pointed axisymmetric nose at zero angle of attack. Extensive supersonic visualization images have been compiled from various nose shapes at different Mach numbers, along with some others performed by the author for the present p...

We demonstrated a GHz bandwidth slow light photonic crystal waveguide based PIN Mach-Zehnder modulator with V ×L as low as 0.0464 V mm, which is the lowest figure of merit reported so far. Keywords-slow light; photonic crystal; Mach-Zehnder modulator

a Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38010 S Michele allAdige, TN, Italy b Centro de Investigación Cientifica de Yucatán A.C., Unidad de Recursos Naturales, Calle 43 130, Colonia Chuburna de Hidalgo, C.P. 97200 Merida, Yucatan, Mexico c Department of Biological Sciences, Murray State University, Murray, KY 420...

In this paper, we discuss a two-dimensional numerical study of isothermal high Mach number Bondi– Hoyle–Lyttleton flow around a small accretor. The flow is found to be unstable at high Mach numbers, with the instability appearing even for a larger accretor. The instability appears to be the unstable radial mode of the accretion column predicted by earlier analytic work.