We present our work on developing a hybrid parallel programming model for a general finite element solver. The main focus of our work is to demonstrate that legacy codes with high latency, two-sided communication in the form of message passing can be improved using lightweight one-sided communication. We introduce a new hybrid MPI/PGAS implementation of the open source general finite element fr...

Action Systems is a predicate transformer based formalism for the develop ment of reactive and distributed systems Recently Action Systems were extended with a new action called the di erential action It models con tinuous behaviour Action Systems with di erential actions are used for modelling hybrid systems In this paper we investigate what kind of hybrid systems are conve niently captured by...

Switching supervisory is the most important section of a feedback control process inMIMO hybrid systems. By choosing a non-compatible controller, system may go tounstable mode or high overshoot response. In this paper, a new method of switchingfor selecting MBC controllers is discussed. Results of the simulation show the MIMO(2-in 2-out) linear hybrid system can be switched stable and low overs...

In this article, we develop the distributed order fractional hybrid differential equations (DOFHDEs) with linear perturbations involving the fractional Riemann-Liouville derivative of order $0 < q < 1$ with respect to a nonnegative density function. Furthermore, an existence theorem for the fractional hybrid differential equations of distributed order is proved under the mixed $varphi$-Lipschit...

Nonlinear control systems have undergone tremendous advances in the last two decades at the levels of theory and applications. Among those, a class of particular interest is that one resulting from the interaction of a control system with a system governed by different dynamics. This class of system lies in the hybrid and nonlinear control systems field. In the last decade, the study of such hy...

background: family-centered care is an essential concept in cancer but there is no consensus about its meaning and it remains an abstract concept. this study was conducted with the purpose of analyzing the concept of family-centered care in cancer. methods: concept analysis of family-centered care was conducted using hybrid model that has 3 phases: theoretical, field work and final analytical p...

several types of hybrid catalysts are made through mixing of 4th generation ziegler-natta (zn) and (2-phind)2zrcl2metallocene catalysts using triethylaluminum (tea) as coupling agent. response surface methodology (rsm)is used to evaluate the interactive effects of different parameters including amounts of metallocene and tea andtemperature on metallocene loading. analyzing the amounts of al and...

In this paper we apply hybrid functions of general block-pulse‎ ‎functions and Legendre polynomials for solving linear and‎ ‎nonlinear multi-order fractional differential equations (FDEs)‎. ‎Our approach is based on incorporating operational matrices of‎ ‎FDEs with hybrid functions that reduces the FDEs problems to‎ ‎the solution of algebraic systems‎. ‎Error estimate that verifies a‎ ‎converge...

Over the past few decades, several powerful placement algorithms have been used successfully in performing VLSI placement. With the increasing complexity of the VLSI chips, there is no clear dominant placement paradigm today. This work attempts to explore hybrid algorithms for large-scale VLSI placement. Our work aims to evaluate existing placement algorithms, estimate the ease of their reuse, ...

This paper considers the problem of sampleddata control for continuous linear parameter varying (LPV) systems. It is assumed that the sampling periods are arbitrarily varying but bounded. Based on a time-varying delay system transformed from the sampled-data control system, some less conservative results are obtained compared with the existing results. The proposed method for the designed gain ...