We consider the problem of redistributing data on homogeneous and heterogeneous ring of processors. The problem arises in several applications, each time after that a load-balancing mechanism is invoked (but we do not discuss the load-balancing mechanism itself). We provide algorithms that aim at optimizing the data redistribution, both for uni-directional and bi-directional rings, and we give ...

The Eclipse Modeling Framework (EMF) and its meta-meta model Ecore support uni-directional and bi-directional references. It is quite common that references are defined uni-directionally only because of saving storage space or separating meta models, which is problematic when implementing Object Constraint Language (OCL) constraints that require navigation against the direction of unidirectiona...

We have developed several kinds of HV MOS devices whose device structures and doping levels in the offset regions differ depending on the specifications of the devices. We have developed the bi-directional HV MOS device (e.g., it can be used as a bi-directional MOS switch) with both drain and source offset regions, and we previously described its SPICE model [4] – [5] based on BSIM3v3 [1] – [3]...

Shearlet theory has become a central tool in analyzing and representing 2D data with anisotropic features. Shearlet systems are systems of functions generated by one single generator with parabolic scaling, shearing, and translation operators applied to it, in much the same way wavelet systems are dyadic scalings and translations of a single function, but including a precise control of directio...

SONET technology has made high-speed self-healing ring (SHR) architectures practical and economical for use in intra-LATA telecommunication networks. This paper reviews a class of SONET SHR architectures and their control schemes. The SHR architectures can be divided into two basic classes: bi-directional SHRs (B-SHRs) and uni-directional SHRs (U-SHRs). Bidirectional SHRs using four fibers and ...

The high spatial and temporal variations of airflow patterns in ventilation openings of naturally ventilated animal houses make it difficult to accurately measure the airflow rate. This paper focusses on the development of a fast assessment technique for the airflow rate of a naturally ventilated test facility through the combination of a linear algorithm and local air velocity measurements. Th...

Improving the computation efficiency is the key issue in image processing, especially in edge detection, because edge detection is very computationally intensive. With the development of real-time image processing application, fast processing response is becoming the major requirement in this area. In this paper, a parallel and distributed algorithm on Spiral Architecture for edge detection usi...

The differences between unidirectional and bidirectional polymerization are considered. The unidirectional case is discussed in the framework of the RNA world. Similar to earlier models of this type, where polymerization was assumed to proceed in a bidirectional fashion (presumed to be relevant to peptide nucleic acids), leftand right-handed monomers are produced via an autocatalysis from an ac...

In this paper, we present three kinds of broadcasting tree for the even dimensional uni-directional hypercube (UHC) and its applications (ASCEND/DESCEND algorithms and bitonic sorting). For the n-dimensional UHC, under the constant evaluation model, one of our all-port broadcasting trees has height n + 1, which is optimal. Whereas the best one of our one-port broadcasting trees needs at most 1 ...

We present a dynamical analysis of a classical billiard chain — a channel with parallel semi-circular walls, which can serve as a model for a bended optical fiber. An interesting feature of this model is the fact that the phase space separates into two disjoint invariant components corresponding to the left and right uni-directional motions. Dynamics is decomposed into the jump map — a Poincare...