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Gravity flow of pulsatile blood through a porous medium under periodic body acceleration and magnetic field in an inclined tube

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International Journal of Biomathematics 2016年第2期9卷 139-157页

作者： Shakera Tanveer V. P. Rathod Department of Mathematics Government First Grade CollegeAfzalpur 585301 Gulbarga Karnataka India Department of MathematicsCNCS Haramaya University Ethiopia

Mathematical model for the pulsatile blood flow through a porous medium under the influence of periodic body acceleration for gravity flow along an inclined tube by considering blood as a couple stress, incompressible and electrically conducting fluid in the presence of magnetic field has been investigated. Analytical expressions for axial velocity, flow rate, fluid acceleration and shear stress are obtained by applying the Laplace and finite Hankel＇s transforms. The velocity profiles for various values of Hartmann number, couple stress parameters and the angle of inclination are shown graphically. Also the effects of body acceleration, Womerseley parameters and permeability parameters have been discussed. The results obtained in the present mathematical model for different values of the parameters involved in the problem show that the flow of blood is influenced by the effect of magnetic field, the porous medium and the inclination angle. The present model is compared with the other existing models. Through this theoretical investigation, the applications of magnetic field have also been indicated in the field of biological, biomedical and engineering sciences.

关键词： Magnetic field body acceleration porous media couple stress fluid inclination angle gravity flow blood-borne diseases.

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Research for the Relationships between body acceleration and Energy Expenditure

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Chinese Journal of Biomedical Engineering(English Edition) 2004年第4期13卷 145-151页

作者： ZHUYi RUANXing-yun SHENGYi XUZhi-rong GUOHai KunmingGeneralHospital Kunming650032China

During our research,It has been found that body acceleration has strong relationships with the human energy *** paper discusses the methods to assess physical activity and concludes that for accurate assessment of physical activity under free living conditions the recently introduced accelerometer looks most *** developed a new computerized machine to assess the body activity and energy *** datas of the treadmill experiment,respiration experiment and 5-kilometer-running experiment have been archieved,we found that body acceration integrals with time has linear relations with body energy expenture.

关键词： body acceleration Energy expenditure

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