We present a new class of cocyclic Jacket matrices over complex number field with any size. We also construct cocyclic Jacket matrices over the finite field. Such kind of matrices has close relation with unitary matrices which are a first hand tool in solving many problems in mathematical and theoretical physics. Based on the analysis of the relation between cocyclic Jacket matrices and unitary...

Reliability of liquid rocket engines is strictly connected with the successful operation cooling jackets, able to sustain impressive operative conditions in terms huge thermal and mechanical loads, generated thrust chambers. Cryogenic fuels, like methane or hydrogen, are often used as coolants they may behave transcritical fluids flowing jackets: after injection a state, phase pseudo-change occ...

Abstract A demonstration plant designed for methanol synthesis with steel mill gases was operated continuously the first time over a period of 5 weeks. The reactor represents single tube typical dimensions an industrial bundle boiling water cooling jacket and is incorporated into full loop unreacted gases. Temperature profile along axis gas composition in recycle stream are measured online. In ...

Jacket matrices motivated by the center weight Hadamard matrices have played an important role in signal processing, communications, image compression, cryptography, etc. In this paper, we suggest a design approach for the Pauli block jacket matrix achieved by substituting some Pauli matrices for all elements of common matrices. Since, the well-known Pauli matrices have been widely utilized for...

This paper deals with the adaptive control of the tubular chemical reactor as a typical member of nonlinear system with continuously distributed parameters. Although this system has negative control properties, proposed adaptive controller which uses external linear model and recursive identification provides good control results. This controller is designed with the use of polynomial approach ...

Unfortunately, the major group of the systems in industry has nonlinear behavior and control of such processes with conventional control approaches with fixed parameters causes problems and suboptimal or unstable control results. An adaptive control is one way to how we can cope with nonlinearity of the system. This contribution compares classic adaptive control and its modification with Wiener...

offshore jacket-type towers are steel structures designed and constructed in marine environments for various purposes such as oil exploration and exploitation units, oceanographic research, and undersea testing. in this paper a newly developed meta-heuristic algorithm, namely cyclical parthenogenesis algorithm (cpa), is utilized for sizing optimization of a jacket-type offshore structure. the a...

The goal of this paper is to propose suitable control methods for controlling of the highly nonlinear system represented by the mathematical model of the continuous stirred tank reactor (CSTR) with so called van der Vusse reaction inside. Temperature of the reactant is controlled by the heat removal of the cooling liquid in the reactor’s jacket. Two control strategies were suggested – adaptive ...

Owing to its orthogonality, simplicity of the inversion and fast algorithms, Jacket transform generalising from the Hadamard transform has played important roles in signal and image processing, mobile communication for coding design, cryptography, etc. In this paper, inspired by the emerging block Jacket transform, a new class of circulant block Jacket matrices (CBJMs) are mathematically define...

This study focused on investigating various existing types of offshore jacket substructures along with a proposed twisted-tripod jacket type (modified jacket (MJ)-structures). The architectures of the three-leg structure, as well as the patented twisted jacket structure motivated the design of the proposed MJ-structures. The dimensions of the structures were designed iteratively using static st...