This article presents a method to automatically synthesize the structure and initial sizing of an operational amplifier. It is positioned between approaches with fixed design plans small search space structures generic structural production rules large technically impractical structures. The presented approach develops hierarchical composition graph based on functional blocks that spans thousan...

The paper presents a new method of investigating topological properties of three-dimensional manifolds by means of computers. Manifolds are represented as block complexes. The paper contains definitions and a theorem necessary to transfer some basic knowledge of the classical topology to finite topological spaces. The method is based on subdividing the given set into blocks of cells in such a w...

A special structure of a kind of matrices, r−block monomial and r−block diagonal matrices, is introduced. Theirs nonnegative Drazin inverses have been studied. The influence of these matrices on the positiveness of the trajectory of a descriptor system has been analyzed. Key–Words:Drazin inverse, nonnegative matrix, block monomial matrix, descriptor system.

A novel trellis design technique for both block and convolutional codes based on the Shannon product of component block codes is introduced. Using the proposed technique, structured trellises for block and convolutional codes have been designed. It is shown that the designed trellises are minimal and allow reduced complexity Viterbi decoding. Zndex Terms-Linear codes, trellis structure, product...

To separate out the noise behaviour from color image several approaches has been identified, adaptive filter which is extension of LMS filter is one of them to achieve higher signal to noise ratio. In this paper, comparison of adaptive filter with different structure and two dimensional block processing for color image noise abolition is proposed. Simulations for different block size as well as...

We previously showed that a premature stimulus can significantly alter vulnerability to arrhythmias by modulating spatial gradients of ventricular repolarization (ie, modulated dispersion). However, it is not clear if such changes in arrhythmia vulnerability can be attributed to the formation of an electrophysiological substrate for unidirectional block and what the potential role is of tissue ...

In this paper, an area-delay efficient structure for two-dimensional discrete wavelet transform (2-D DWT) is proposed. The proposed structure has a small cycle period, and offer high throughput compared to the existing structures due to its efficient arithmetic unit (AU). The flipping scheme and efficient probability estimated biased (PEB) Booth multiplier provide efficient area-delay product (...