in the present paper, we introduce the sequence space [{l_p}(e,delta) = left{ x = (x_n)_{n = 1}^infty : sum_{n = 1}^infty left|  sum_{j in {e_n}} x_j - sum_{j in e_{n + 1}} x_jright| ^p < infty right},] where $e=(e_n)$ is a partition of finite subsets of the positive integers and $pge 1$. we investigate its topological properties and inclusion relations. moreover, we consider the problem of fin...

In this research, the effect of different biopolymers such as polyethylene glycol (PEG) and polyvinylalcohol (PVA) on synthesis and characterization of polymer/cobalt ferrite (CF) nano-composites bymechanical alloying method has been systematically investigated. The structural, morphological andmagnetic properties changes during mechanical milling were investigated by X-ray diffraction (XRD),Fo...

We propose and experimentally verify a method to program the effective transmission matrix of general multiport linear optical circuits in random multiple-scattering materials by phase modulation of incident wavefronts. We demonstrate the power of our method by programming linear optical circuits in white paint layers with 2 inputs and 2 outputs, and 2 inputs and 3 outputs. Using interferometri...

The secrecy capacity of the multi-antenna wiretap channel was recently characterized independently by Khisti and Wornell [1] and Oggier and Hassibi [2] using a Sato-like argument and matrix analysis tools. This note presents an alternative characterization of the secrecy capacity of the multi-antenna wiretap channel using a channel enhancement argument. This characterization is by nature inform...

The transmission Jones matrix of an arbitrary stack of reciprocal plane-parallel plates that has been turned through 180 degrees about an axis in the plane of the stack is, in an appropriate basis, the transpose of the transmission matrix of the unturned slab with a change in the sign of the off-diagonal elements. We prove this convention-free result for the case where reflection at the interfa...

This paper presents a procedure for allocating transmission cost to generators and loads. The procedure is based on the network Z-bus matrix. This work proposes three methods using bus impedance matrix Zbus. The three techniques are Zbus method, Zbus avg method and a newly proposed technique. The new method is very effective in transmission cost allocation A physically-based network usage proce...

Introduction. The Butler matrix transforms the N channels of a phased array into a new set of so-called eigenmodes with useful properties for both reception [1] and transmission [2]. In the current work, we performed simulations of an eight-channel phased array based on microstrip transmission line (MTL) elements [3-4] and driven in an eigenmode configuration to investigate the effects of error...

The electron optics of a 90 degree spherical deflecting analyzer (SDA-90) is investigated with an imaging matrix formalism. As a preanalyzer in the UTAneutrino experiment, high transmission and reasonable energy resolution are the choices of optimization. The magnification of the source through the analyzer plays the key role in determining the energy resolution. The imaging matrix approach pro...

Unitary differential space–time modulation (UDSTM) where unitary matrix symbols are differentially encoded prior to transmission is an attractive solution for transmission over multiple–input multiple–output (MIMO) fading channels without requiring channel state information (CSI). In this work we investigate and optimize the application of tree–search algorithms to maximum–likelihood multiple–s...

In this paper, the network expression is proposed for finitelength multiple transmission lines in arbitrary directions. Crosstalk between two bent transmission lines is analyzed using the proposed approach as an example of application. The resultant network function is obtained in the form of an ABCD matrix for two bent transmission lines is obtained. The validity of the proposed approach was c...