scholarly journals Effect of Different Types of Stenosis on Generalized Power Law Model of Blood Flow in a Bifurcated Artery

2021 ◽  
Vol 87 (3) ◽  
pp. 172-183
Author(s):  
Muhammad Sabaruddin Ahmad Jamali ◽  
Zuhaila Ismail ◽  
Norsarahaida Saidina Amin
Keyword(s):  
Blood Flow ◽  
Power Law ◽  
Model Simulation ◽  
Rigid Wall ◽  
Power Law Model ◽  
The Finite Element Method ◽  
Heart Attacks ◽  
Different Types ◽  
Blood Flow Characteristic

This study is focus on generalized power law model of blood flow in a stenosed bifurcated artery under the effect of different types of stenosis. Stenosis can cause the narrowing of the artery that may reduce the flow of blood supply to the heart, and this may lead to the heart attacks. The geometry of the bifurcated artery with different classification of stenosis locations is considered in order to shows four possible morphologies formation of plaque from healthy artery to disease artery. The bifurcated artery is modelled as a two-dimensional rigid wall since the wall of a disease artery is reported to be less flexibility. Few assumptions are considered such as blood are incompressible, laminar, steady and characterized as the generalized power-law model. Simulation results are obtained using COMSOL Multiphysics 5.2, which is a software that based on the finite element method to solve this problem. Results concerning the effect of different locations of stenosis on generalized power law model of the blood flow characteristic such as streamlines pattern are discussed.

The effect of body acceleration on the generalized power law model of blood flow in a stenosed artery

2017 ◽  
Author(s):  
Ahmed Bakheet ◽  
Esam A. Alnussairy ◽  
Zuhaila Ismail ◽  
Norsarahaida Amin
Keyword(s):  
Blood Flow ◽  
Power Law ◽  
Power Law Model ◽  
Body Acceleration ◽  
Stenosed Artery

A power-law model of blood flow through a tapered overlapping stenosed artery

2008 ◽  
Vol 195 (2) ◽  
pp. 669-680 ◽  
Author(s):  
Zuhaila Ismail ◽  
Ilyani Abdullah ◽  
Norzieha Mustapha ◽  
Norsarahaida Amin
Keyword(s):  
Blood Flow ◽  
Power Law ◽  
Power Law Model ◽  
Stenosed Artery ◽  
Flow Through

EFFECTS OF PULSATILITY AND DOUBLE STENOSES ON POWER LAW MODEL OF BLOOD FLOW AND MASS TRANSPORT IN VESSEL

2020 ◽  
Vol 19 (1) ◽  
pp. 97-128
Author(s):  
Reima D. Alsemiry ◽  
Sarifuddin ◽  
Prashanta K. Mandal ◽  
Hamed M. Sayed ◽  
Norsarahaida Amin
Keyword(s):  
Blood Flow ◽  
Mass Transport ◽  
Power Law ◽  
Power Law Model ◽  
Flow And Mass Transport

Generalized Power-Law Model of Magnetohydrodynamic Blood Flow with Heat Transfer

2018 ◽  
Vol 9 (12) ◽  
pp. 794
Author(s):  
Ahmed Bakheet ◽  
Esam A Alnussairy ◽  
Zuhaila Ismail ◽  
Norsarahaida Amin
Keyword(s):  
Heat Transfer ◽  
Blood Flow ◽  
Power Law ◽  
Power Law Model

Dual stain kit for the microscopic gram classification of ocular infection bacteria

1993 ◽  
Vol 51 ◽  
pp. 248-249
Author(s):  
Jacob S. Hanker ◽  
Dale N. Holdren ◽  
Kenneth L. Cohen ◽  
Beverly L. Giammara
Keyword(s):  
Contact Lenses ◽  
Ocular Infection ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Gram Staining ◽  
Ocular Infections ◽  
Different Types ◽  
Culture Positive ◽  
Increased Susceptibility

Keratitis and conjunctivitis (infections of the cornea or conjunctiva) are ocular infections caused by various bacteria, fungi, viruses or parasites; bacteria, however, are usually prominent. Systemic conditions such as alcoholism, diabetes, debilitating disease, AIDS and immunosuppressive therapy can lead to increased susceptibility but trauma and contact lens use are very important factors. Gram-negative bacteria are most frequently cultured in these situations and Pseudomonas aeruginosa is most usually isolated from culture-positive ulcers of patients using contact lenses. Smears for staining can be obtained with a special swab or spatula and Gram staining frequently guides choice of a therapeutic rinse prior to the report of the culture results upon which specific antibiotic therapy is based. In some cases staining of the direct smear may be diagnostic in situations where the culture will not grow. In these cases different types of stains occasionally assist in guiding therapy.

Explanatory Power for Medical Expert Systems: Studies in the Representation of Causal Relationships for Clinical Consultations

1982 ◽  
Vol 21 (03) ◽  
pp. 127-136 ◽  
Author(s):  
J. W. Wallis ◽  
E. H. Shortliffe
Keyword(s):  
Explanatory Power ◽  
Prototype System ◽  
Inference Rules ◽  
Medical Expert ◽  
Comprehensive Knowledge ◽  
Different Types ◽  
Medical Expert Systems ◽  
Explanation System ◽  
Systems Studies

This paper reports on experiments designed to identify and implement mechanisms for enhancing the explanation capabilities of reasoning programs for medical consultation. The goals of an explanation system are discussed, as is the additional knowledge needed to meet these goals in a medical domain. We have focussed on the generation of explanations that are appropriate for different types of system users. This task requires a knowledge of what is complex and what is important; it is further strengthened by a classification of the associations or causal mechanisms inherent in the inference rules. A causal representation can also be used to aid in refining a comprehensive knowledge base so that the reasoning and explanations are more adequate. We describe a prototype system which reasons from causal inference rules and generates explanations that are appropriate for the user.

A Non-Newtonian Fluid Flow Model for the Slip Condition on Blood Flow through a Stenosed Artery using Power-law Fluid

2018 ◽  
Vol 9 (7) ◽  
pp. 871-879
Author(s):  
Rajesh Shrivastava ◽  
R. S. Chandel ◽  
Ajay Kumar ◽  
Keerty Shrivastava and Sanjeet Kumar
Keyword(s):  
Blood Flow ◽  
Fluid Flow ◽  
Newtonian Fluid ◽  
Power Law ◽  
Flow Model ◽  
Slip Condition ◽  
Power Law Fluid ◽  
Stenosed Artery ◽  
Flow Through
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