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Numerical simulation of Oldroyd-B fluid with application to hemodynamics

Oldroyd-B viscoelastic fluid is numerically simulated using the stabilized Galerkin least squares finite element method. The instabilities due to the connective nature of the Oldroyd-B model is treated using the discrete viscous elastic split stress method. The model is used to study the behavior of the flow of blood through an abdominal aortic segment. The results show that the viscoelastic

Energy and Water

A study on the feasibility of producing polylactic acid from cotton and coffee waste in Egypt

The amount of solid waste is growing In Egypt. It is estimated to be 20 million tons annually according to the Ministry of environment forecasts. The typical competence of collection in urban areas signifies 40 – 80%, although the middling proficiency of assortment processes and transport in rustic areas signifies 40 % which is considered hazardous for communal health and environment deprived of

Energy and Water

Engineered Nanomaterials as Potential Candidates for HIV Treatment: Between Opportunities and Challenges

Nanomaterials have received considerable attention due to their unique properties; they have high surface area compared to volume ratio, giving them superior chemical, optical and thermal characteristics. Nanomaterials have also both diagnostic and therapeutic applications. In this mini review, we are highlighting valuable data about human immunodeficiency virus (HIV), its relationship with cancer

Energy and Water

Correlation Between the Theory of Lissajous Figures and the Generation of Pinched Hysteresis Loops in Nonlinear Circuits

In this paper, the application of the theory of Lissajous figures to the creation of pinched hysteresis loops, considered to be a characteristic of memristive systems, is demonstrated and experimentally verified using designed electronic circuits in the form of an input impedance. The relationship between the Lissajous-based model of the pinched hysteresis loop and a previously reported integrator

Circuit Theory and Applications

Frequency-dependent effective capacitance of supercapacitors using electrospun cobalt-carbon composite nanofibers

Mixing carbon-based materials with pseudocapacitive material is a widely used strategy to prepare high-energy, high-power supercapacitors. However, phase separation is inevitable after extended charging/discharging which leads to the degradation of performance metrics of the device. Here, we prepare in a single step cobalt-incorporated carbon nanofibers (CNF) by electrospinning homogeneous

Energy and Water
Circuit Theory and Applications

Growth dynamics of CBD-assisted CuS nanostructured thin-film: optical, dielectric and novel switchable device applications

The microcrystal structure of copper sulfide (CuS) nano-structured ultra-thin film was prepared on glass substrate from aqueous ammonia solution and sodium hydroxide at 60 °C using a simple and cost-effective chemical bath deposition (CBD). The powder X-ray diffraction method was used to characterize the hexagonal structure of the prepared CuS thin-film. While, surface morphology and surface

Software and Communications

First Observation of the Directed Flow of D0 and D0 ̄ in Au+Au Collisions at sNN =200 GeV

We report the first measurement of rapidity-odd directed flow (v1) for D0 and D0̄ mesons at midrapidity (|y|

Artificial Intelligence

A Real-Time Social Network- Based Traffic Monitoring Vehicle Tracking System

Social networking has become an essential part of our daily lives. tTe integration of social networking communication model and Internet of Things (IoT) provides the users with a greater advantage than the benefit of using each one alone. This paper presents a real-time traffic monitoring and vehicle tracking for the public or private transportation sectors. The proposed system uses a social

Artificial Intelligence

Design and implementation of robust firefighting/intruder detection system using fuzzy logic decision control (FIDFUZ)

This research focuses on using quantifiable methods for using the IoT as a main support to firefighting/intruder detection. From our research, we have found numerous researches associated to supplying remote services by means of portable sensors and communication technologies. We represent in our research a unique Smart Firefighting/lntruder Detection System with the support of Fuzzy Logic

Artificial Intelligence

Geometrically accurate structural analysis models in BIM-centered software

Current BIM models impose restrictions on the geometry of building members in their analytical models, where components are fitted to wireframe representations. This unnecessary reduction in geometrical representation drives the loss of structural details and may lead to defective structural analysis. The present paper addresses the current shortcomings in the semantics of analytical models within

Software and Communications