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α -order universal filter realization based on single input multi-output differential voltage current conveyor

Two voltage-mode topologies single input multi-output universal fractional filters with high input impedance are proposed. The proposed analog filters consist of three DVCC+ blocks, two grounded capacitors and two resistors targeting the minimum passive elements. The proposed topologies provide a realization for all standard fractional filter functions (HP, LP, BP, AP and notch filter). The effect

Circuit Theory and Applications

Review organic solar cells parameters extraction and characterization techniques

Organic photovoltaic research is continuing in order to improve the efficiency and stability of the products. Organic devices have recently demonstrated excellent efficiency, bringing them closer to the market. Understanding the relationship between the microscopic parameters of the device and the conditions under which it is prepared and operated is essential for improving performance at the

Software and Communications

3PCNNB-Net: Three Parallel CNN Branches for Breast Cancer Classification Through Histopathological Images

Purpose: Diagnosis of breast tumors using histopathological imaging is considered a difficult task. Oncologists may have different opinions on how to use this imaging technique to diagnose tumors. This technique requires classification experience owing to the contrasting appearance caused by tissue preparation, staining processes, and disease heterogeneity. Cancerous breast tissues are classified

Artificial Intelligence

Magnetic field effect on piezo-thermoelastic wave propagation in a half-space within dual-phase-lag

The current work is concerned with the study of wave propagation in a half-space of a piezo-thermoelastic material under a bias tangential magnetic field within dual-phase-lag (DPL). This is relevant to the design and performance of piezoelectric devices working under a bias magnetic field, for example, the DC magnetic field piezoelectric sensors widely used in various areas of technology. The

Energy and Water

Thermoelastic wave propagation in a piezoelectric layered half-space within the dual-phase-lag model

We investigate linear, thermoelastic wave propagation in a layered piezoelectric material composed of a slab bonded to a half-space substrate of a dissimilar material, within dual-phase-lag model and under thermomechanical loads. One of the aims of the present work is to formulate a set of boundary conditions that is compatible with the field equations. Normal mode technique is used to obtain a

Energy and Water

Numerical solution to a 2D-problem of piezo-thermoelasticity in a quarter-space within the dual-phase-lag model

We present a numerical solution by finite differences to a linear, plane, initial-boundary-value problem of thermo-piezoelasticity in a quarter-space, within the dual-phase-lag model. Motion is excited by a one-period heat regime applied to one boundary of the medium. The relation between the two relaxation times is clarified in order to obtain wave-like solutions. An explicit, three-level

Mechanical Design

Optimum Scheduling of the Disinfection Process for COVID-19 in Public Places with a Case Study from Egypt, a Novel Discrete Binary Gaining-Sharing Knowledge-Based Metaheuristic Algorithm

The aim of this paper is to introduce an improved strategy for controlling COVID-19 and other pandemic episodes as an environmental disinfection culture for public places. The scheduling aims at achieving the best utilization of the available working day-time hours, which is calculated as the total consumed disinfection times minus the total loosed transportation times. The proposed problem in

Artificial Intelligence
Healthcare
Software and Communications

Active Morphing Control of Airfoil At Low Reynolds Number Using Level-Set Method

The active control of flow around an airfoil through morphing is numerically investigated. The lock-in phenomenon was predicted while using a fixed grid. Galerkin/Least-Squares Finite Element Method was used to simulate incompressible flow over an airfoil with leading edge morphing at a Reynolds number, Re = 5000, and angle of attack, α = 6°. The numerical simulation was carried out using the in

Mechanical Design

Design and FEA-based Methodology for a Novel 3 Parallel Soft Muscle Actuator

Recently, soft robotics represents a new era of advanced robotics systems. Based on the flexible nature of soft robots, they are more adequate to have safe interaction with humans and handle complex or delicate objects. Due to the nature of soft robotics, there is a crucial need to propose new designs, fabrication, and control systems suitable for the flexibility nature. In this research project

Mechanical Design

Decoupling the magnitude and phase in a constant phase element

The success of fractional-order fractance (FOF) as a modeling tool in (photo)bio(electro)chemical systems can be readily gauged by the large body of research work that has been conducted over the past few years in terms of materials fabrication, building integer-order emulators of their behavior, as well as applications in filter design, controller design, modeling of energy storage devices and

Circuit Theory and Applications