Use of space-time codes with multiple transmit antennas has generated a lot of interest for increasing spectral efficiency as well as improved performance in wireless communications. Although, the literature on space-time coding is quite rich now, the orthogonal designs of Alamouti [1], Tarokh et al. [2, 3], Naguib and Seshádri [4] remain popular. The strength of orthogonal designs is that thes...

The structure of human disparity representation is examined through (i) adaptation experiments and (ii) model simulations of the data. Section 3 presents results of adaptation experiments designed to illuminate the structure of human disparity representation. Section 4 presents model simulations of three different disparity representation schemes. In the experiments, participants adapted to a 0...

The traditional consideration of architectural history as a linear process, where one style successively replaces another, still dominates, but does not explain many phenomena. V.S. Goryunov substantiated fundamentally different, non-linear model the historical process in architecture on basis 19th – early 20th centuries. V. S. and M. P. Tubli proposed stylistic polyphony with introduction conc...

In this paper, an all-fiber Mach-Zehnder interferometer (MZI) based on a non-zero dispersion-shifted fiber (NZ-DSF) is presented. The MZI was implemented by core-offset fusion splicing one section of a NZ-DSF fiber between two pieces of single mode fibers (SMFs). Here, the NZ-DSF core and cladding were used as the arms of the MZI, while the core-offset sections acted as optical fiber couplers. ...

The Galileo magnetometer data are used to investigate the structure of the Alfvén wing during three flybys of Europa. The presence of an induced magnetic field is shown to shrink the cross section of the Alfvén wing and offset it along the direction radial to Jupiter. Both the shrinkage and the offset depend on the strength of the induced field. The entry and exit points of the spacecraft into ...

In our Software Defined Radio project we perform a feasibility study of a software defined radio for two communication standards: HiperLAN/2 and Bluetooth. In this paper the Matlab/Simulink implementation of the HiperLAN/2 demodulator for the demonstrator of the project is discussed, with special attention for the frequency offset corrector. This type of correction is necessary to prevent large...

The orientation of osteons in cortical bone has been shown to correlate with the loading condition. The purpose of this study is to determine the orientation of osteons in the rib cage to better understand the behavior of the rib cage under mechanical load. A total of 37 rib specimens were removed from 21 rib locations from a male and female cadaver. Eight histological slides were created from ...

We have studied measurements of the cross section for e+e− → hadrons for centerof-mass energies in the range 20–209 GeV. We find an apparent excess over the predictions of the Standard Model across the whole range amounting to more than 4σ. As an example, we compare the data to predictions for a light scalar down-type quark which fit the excess well.

Reliable seismic depth migrations require an accurate input velocity model. Inaccurate velocity estimates will distort point diffractors into smiles or frowns on a depth section. For both poststack and prestack migrated sections, high velocities cause deep smiles while low velocities cause shallow frowns on migrated gathers. However, for prestack images in the offset domain, high velocities cau...