In this paper, we give a numerically reliable algorithm to compute the zeros of a periodic descriptor system. The algorithm is a variant of the staircase algorithm applied to the system pencil of an equivalent lifted time-invariant state-space system and extracts a low-order pencil which contains the zeros (both 6nite and in6nite) as well as the Kronecker structure of the periodic descriptor sy...

in this paper, we propose a simple, fast, and accurate method to make scientific illustrations specimens of animals. photos and/or pencil drawings provided via microscope or stereo-microscope equipped with camera lucida and scanned. the scanned illustrations were  imported into coreldraw. the detailed drawings are made using special pens and proper lines. the final produced illustrations with t...

This paper presents a new statistical approach to the blind estimation of linear multiple-input multiple-output (MIMO) channels with finite impulse response. A matrix pencil is constructed from a set of fourth-order cumulant matrices of the channel output signals. The MIMO channel impulse responses can then be efficiently estimated from the generalized eigendecomposition of this cumulant matrix...

We report results of our investigation of the case of a 34-year-old woman (YJ) who showed persistent left unilateral spatial neglect (USN) in daily living, frequently hitting obstacles or bumping into the wall, although her visuospatial ability was mostly preserved in paper and pencil neuropsychological tests. In order to clarify this apparent discrepancy, her eye fixation pattern was monitored...

This study used computer-generated (“virtual”) mazes to investigate sex differences in the efficiency of spatial route learning in humans. Correlations between maze performance and traditional psychometric measures of spatial ability also were examined. Male and female subjects completed a total of five learning trials on each of two spatial mazes and completed a battery of spatial and verbal c...

In this paper, we propose a method for finding certain eigenvalues of a generalized eigenvalue problem that lie in a given domain of the complex plane. The proposed method projects the matrix pencil onto a subspace associated with the eigenvalues that are located in the domain via numerical integration. The projection produces a small pencil with Hankel matrices.

Real-time systems can be characterized as systems for which the correctness of an operation is dependant not only on its functional correctness but also on the time taken. Some commonly used real-time system applications include embedded systems, digital circuits with uncertain delays, communication protocols and dynamic reconfigurable systems. Until the last decade, real-time systems were anal...

A high-order scheme for direct numerical simulations of turbulent combustion is discussed. Its implementation in the massively parallel and publicly available PENCIL CODE is validated with the focus on hydrogen combustion. This is the first open source DNS code with detailed chemistry available. An attempt has been made to present, for the first time, the full set of evolution and auxiliary equ...

INTRODUCTION Computerized adaptive testing offers the advantages of more precise and efficient ability estimation and more flexible scheduling for testing when compared with conventional linear tests. Both item-level and testlet-level computerized adaptive tests have proved to be useful alternatives to the conventional paper-and-pencil tests. However, a potential problem is test security. In co...

The use of paper and pencil tests for the selection of candidates and to identify individual differences should be approached cautiously because the interpretations of the tests can be very subjective. Although personal preferences do tend to become more stable as we grow older, they may vary from one day to the next. No one is an absolute extrovert or introvert; we all have tendencies toward o...