23 results on '"Siva, E. P."'
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2. Correction: Heat and mass transfer in double-diffusive mixed convection of Casson fluid: biomedical applications
- Author
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Bathmanaban, P., Siva, E. P., Santra, S. S., Askar, S. S., Foul, A., and Nandi, S.
- Published
- 2024
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3. MHD peristaltic two-phase Williamson fluid flow, heat and mass transfer through a ureteral tube with microliths: <italic>Electromagnetic therapy simulation</italic>.
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Deepalakshmi, P., Siva, E. P., Tripathi, D., Bég, O. Anwar, and Kuharat, S.
- Abstract
Abstract\nCULMINATIONSThe ureter typically experiences a frequency of one to five peristaltic contractions per minute. However, it is important to note that these contractions can be disrupted by various physical and mechanical irritants. Ionic contents in the urine make it electrically conducting and responsive to electromagnetic body forces. MHD can be deployed in bio magnetic therapy to control or mitigate symptoms associated with peristaltic pumping in the urinary system. This article therefore focuses on the hydromagnetic effects on flow patterns of urine with debris (monoliths). The mechanism of urine flow is largely coordinated by the kidneys. The flow inside the ureter is interrupted by microliths, which are generated by the sedimentation of excretory products. To simulate this, a two-phase formulation is adopted, comprising the electromagnetic urological viscous fluid phase and the particulate phase for solid grains. The peristaltic propulsion of two-phase liquid in the ureter is simulated as a sinusoidal wave propagation of incompressible non-Newtonian fluid. The Williamson viscoelastic model is deployed for the rheology. Heat transfer is also included with Soret thermo-diffusion and viscous heating effects. Long wave and low Reynolds number approximations are employed based on lubrication theory. The mass, momentum, energy and concentration conservation equations with associated boundary conditions are rendered non-dimensional
via appropriate scaling transformations. A numerical solution is achievedvia BVP4C MATLAB quadrature. Graphical visualizations of the velocity, temperature and concentration (solid grains) are given for the influence of suspension parameter (ζ), Hartmann number (M ), Prandtl number (Pr ), Weissenburg number (We ), particle volume fraction (C ), Eckert number (Ec ), Soret number (Sr ), Schmidt number (Sc ).The novelty of the present work is therefore the simultaneous consideration of a generalized two-phase model, wall slip, non-Newtonian characteristics, cross diffusion, viscous dissipation, mass diffusion, magnetic body force and curvature effects in peristaltic urological transport, which has not been undertaken previously . The detailed simulations reveal that the flow velocity is reduced due to the presence of solid particles and the channel curvature, in comparison to the flow in an unobstructed channel devoid of solid particles. Enhancing the hydrodynamic slip parameter speeds up the movement of particles and fluid near the channel walls, boosts wall skin friction, raises pressure difference in the pumping area, and amplifies bolus magnitudes.The rise in peristaltic pumping results in a reduction in solid particle concentration, which is significant phenomena.This theoretical approach may aid in treating conditions such as Urinary Tract Infections (UTIs). The computations effectively demonstrate that significant manipulation of urological pumping characteristics can be achieved with an electromagnetic field. Some new features of two-phase ureteral dynamics are highlighted as relevant to magnetic therapy techniques, which may be beneficial to clinicians.A detailed new formulation is given for magnetohydrodynamic (MHD) two-phase Williamson non-Newtonian ureteral transport with mass diffusion, Soret cross diffusion, viscous heating and peristaltic wave propulsion.We compute numerically the pressure gradient, skin friction, Nusselt number, and wall shear stress in a planar channel with flexible walls, which serves as a model for the ureter under a transverse magnetic field.We also investigate the impact of Hartmann number and Weissenberg non-Newtonian number on fluid and particle phase velocities.The present work reveals some interesting insights into electromagnetic ureteral peristaltic multi-phase non-Newtonian thermo-solutal transport phenomena via extensive visualization.There is a strong suppression in the ureteral fluid phase velocity for greater magnetic field confirming the excellent flow control abilities of Magnetic Ureteral Therapy (MUT).A detailed new formulation is given for magnetohydrodynamic (MHD) two-phase Williamson non-Newtonian ureteral transport with mass diffusion, Soret cross diffusion, viscous heating and peristaltic wave propulsion.We compute numerically the pressure gradient, skin friction, Nusselt number, and wall shear stress in a planar channel with flexible walls, which serves as a model for the ureter under a transverse magnetic field.We also investigate the impact of Hartmann number and Weissenberg non-Newtonian number on fluid and particle phase velocities.The present work reveals some interesting insights into electromagnetic ureteral peristaltic multi-phase non-Newtonian thermo-solutal transport phenomena via extensive visualization.There is a strong suppression in the ureteral fluid phase velocity for greater magnetic field confirming the excellent flow control abilities of Magnetic Ureteral Therapy (MUT). [ABSTRACT FROM AUTHOR]- Published
- 2024
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4. A Numerical Investigation of Thermal and Mass Exchange of Blood Along Porous Stenosis Arterial Flow With Applied Magnetic Field.
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Shankar, G. and Siva, E. P.
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ARTERIAL stenosis , *PULSATILE flow , *NEWTONIAN fluids , *MAGNETIC fields , *BLOOD circulation , *CHEMICAL processes , *BLOOD flow - Abstract
Hemodynamics in stenosed arteries is complex, including turbulence, recirculation, and vortices, which can further worsen the disease. This study provides an overview of blood flow characteristics in stenosed arteries, focusing on flow physics, stenosis geometry, and severity. This present article examines the impact of heat and mass exchange on blood flow in arterial stenosis, taking into account chemical processes, magnetic fields, and thermal radiation. The features of vital fluid (blood) in the constricted arterial tube are examined by taking blood as Newtonian fluid in the arterial stenosis region. The continuity (mass), momentum, and concentration equations are solved using a finite difference approach with the help of appropriate boundary conditions. Solutions have been established for axial velocity, temperature, and concentration equations with variable parameters in blood circulation. It is noticed that an enhancement in the Reynolds number indicates more disorder in the velocity of the blood flow near the downstream area of cholesterol or plaque deposition. The temperature profile induced is stronger nearer to the arterial complaint wall downstream of stenosis. These findings for RBC's flow in stenosis-contained arteries have significant advantages in terms of understanding the disease mechanisms, developing accurate computational models, and identifying effective treatment strategies for patients. [ABSTRACT FROM AUTHOR]
- Published
- 2024
5. Effect of thermally radiative heat transfer and heat source on peristalsis of a couple stress fluids through the porous micro channel in the occurrence of MHD.
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Siva, E. P., Balaji, N., Vijayakumar, B., Bathmanaban, P., and Shankar, G.
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HEAT transfer , *PERISTALSIS , *MAGNETOHYDRODYNAMICS , *TEMPERATURE distribution , *PRANDTL number , *DRUG delivery systems , *FREE convection , *HEAT radiation & absorption - Abstract
The core goal of the article is to inspect the effect of thermally radiative heat transmission and heat source on peristalsis of a couplestress liquid in the asymmetric microfluidics conduit. The normalized 2D flow governing equations for momentum and energy are balanced using non dimensional quantities and simplify using the approximation wavelength is so long compared with Reynolds number is too small. All the solutions like velocity flow and temperature profile are illustrated with MATLAB software under the effects of important parameters like Hartmann number, Darcy number, Prandtl number, heat source/sink parameter and thermal radiation parameter. It is observed that increasing in Prandtl (Pr) number and Eckert (E) number will lead to increase in temperature distribution. These types of observations may be applicable to develop EMHD for drug delivery system and blood transport in micro vessels. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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6. Risk based pricing using k-means clustering.
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Sanjana, N. B., Ishwarya, M., Balaji, N., and Siva, E. P.
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K-means clustering ,PRICES ,CREDIT analysis ,CREDIT risk ,CENTROID ,CREDIT ratings - Abstract
Credit Risk Analysis is a process adapted by loan associations to evaluate the risk -based pricing for sanctioning loans. The chances of approving loans depend on the customer's credit score, which includes annual income, banking history, loan, insurance and different elements of risks such as default risk, credit correlation risk, collateral risk, credit concentration risk, rating migration risk and recovery risk. Results of the calculation allow lenders and customers to assess credit profile characteristics. Data Science allows discovering of new patterns within a complex data set which can be an efficient method to compute risk percentage by means of non – hierarchical clustering. K-means is an iterative algorithm - the idea is to use small unstructured groups of data of fixed size, assigned to clusters to be stored in the memory depending on the previous locations of the cluster centroids. It is validated that the suggested technique predicts better accuracy, is a faster and targeted approach than existing methods. [ABSTRACT FROM AUTHOR]
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- 2022
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7. Risk and effective analysis of COVID-19 vaccine using mathematical models in the pandemic situation.
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Balaji, N., Sanjana, N. B., Siva, E. P., Lokesh, R., and Catherina, A. J.
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COVID-19 pandemic ,VACCINE effectiveness ,COVID-19 vaccines ,MEDICAL technology ,MATHEMATICAL models - Abstract
In the present situation COVID-19 global pandemic, an overall world got embrace with covid-19 virus. Moreover every country went under quarantine and firm mitigation measures by temporary shutdown in people crowded place like schools, restaurants, theatres and domestic and international transport facilities[1]. So government made these measures to be effective to support and compliance of public[2]. Advanced medical technology put up with new vaccines to control infection of virus. Vaccination is one of the most effective step to control the virus from affecting the entire population. This paper aims to explore the optimal effectiveness of Vaccination for novel COVID-19 non clinical approach. We need smart solutions and decisions to mitigate the coronavirus's impact. We formulate the mathematical model to Analyse the vaccination effectiveness[3]. The objective function is designed to reduce both awareness of vaccination and effectiveness of vaccination using WHO data/ Indian dashboard data[4]. The degree of protection As a part we can analyse the risk factors of immunization using multivariate models using statistical analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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8. Effect of a secant film on a curved circular plate coupled with viscosity variation and MHD effect.
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Sujatha, E., Siva, E. P., Govindarajan, A, Balaji, N, Gajendran, G, and Behra, Harekrushna
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VISCOSITY , *HYDRAULIC couplings , *NON-Newtonian flow (Fluid dynamics) , *FREE convection , *MAGNETIC fields - Abstract
The squeezing effect of a curved circular plate moving normal towards a lower porous plate in the presence of a magnetic field consisting of an electrically conducting non Newtonian couple stress fluid is considered. The film shape is taken to be secant. Suitable expression for pressure is obtained taking into consideration viscosity variation and MHD effects. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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9. Thermal slip and radiative heat transfer effects on electro‐osmotic magnetonanoliquid peristaltic propulsion through a microchannel.
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Prakash, J., Siva, E. P., Tripathi, D., and Bég, O. Anwar
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HEAT radiation & absorption , *SLIP flows (Physics) , *NUSSELT number , *BUOYANCY , *PRANDTL number , *MAGNETIC fields - Abstract
A mathematical study is described to examine the concurrent influence of thermal radiation and thermal wall slip on the dissipative magnetohydrodynamic electro‐osmotic peristaltic propulsion of a viscous nanoliquid in an asymmetric microchannel under the action of an axial electric field and transverse magnetic field. Convective boundary conditions are incorporated in the model and the case of forced convection is studied, that is, thermal and species (nanoparticle volume fraction) buoyancy forces neglected. The heat source and sink effects are also included and the diffusion flux approximation is employed for radiative heat transfer. The transport model comprises the continuity, momentum, energy, nanoparticle volume fraction, and electric potential equations with appropriate boundary conditions. These are simplified by negating the inertial forces and invoking the Debye–Hückel linearization. The resulting governing equations are reduced into a system of nondimensional simultaneous ordinary differential equations, which are solved analytically. Numerical evaluation is conducted with symbolic software (MATLAB). The impact of different control parameters (Hartmann number, electro‐osmosis parameter, slip parameter, Helmholtz–Smoluchowski velocity, Biot numbers, Brinkman number, thermal radiation, and Prandtl number) on the heat, mass, and momentum characteristics (velocity, temperature, Nusselt number, etc) are presented graphically. Increasing Brinkman number is found to elevate temperature magnitudes. For positive Helmholtz–Smoluchowski velocity (reverse axial electrical field) temperature is strongly reduced, whereas for negative Helmholtz–Smoluchowski velocity (aligned axial electrical field), it is significantly elevated. With increasing thermal slip, nanoparticle volume fraction is also increased. Heat source elevates temperatures, whereas heat sink depresses them, across the microchannel span. Conversely, heat sink elevates nanoparticle volume fraction, whereas heat source decreases it. Increasing Hartmann (magnetic) parameter and Prandtl number enhance the nanoparticle volume fraction. Furthermore, with increasing radiation parameter, the Nusselt number is reduced at the extremities of the microchannel, whereas it is elevated at intermediate distances. The results reported provide a good insight into biomimetic energy systems exploiting electromagnetics and nanotechnology, and, furthermore, they furnish a useful benchmark for experimental and more advanced computational multiphysics simulations. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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10. Influences of Shear Stress on Peristaltic Transport of a Non-Newtonian Fluid in a Micro Asymmetric Channel.
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Prakash, J., Siva, E. P., Balaji, N., and Chandrasekaran, A. D.
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NON-Newtonian fluids , *SHEARING force , *FRICTION , *PERISTALSIS - Abstract
The movement of a Williamson fluid is studied in a micro asymmetric walls and it is initiated by the movement of peristalsis waves with the constant speed, however with distinct amplitudes and phase on the stretchy walls under LWL wavelength and LRN assumption. The perturbation method in the power of We is constructed to get explicit forms for velocity, pressure rise, frictional forces and shear stress. The properties of several developing parameters on the fluid motion are presented graphically. In addition, the streamlines prototype is designed and it is examined that trapping happens near the walls and the magnitude of the trapped bolus varies with changing inserted flow parameters. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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11. Effect of mass transfer and chemical reaction on mixed convection periodic flow in a rotating channel in the presence of MHD and radiation.
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Rajesh, K., Govindarajan, A., Vidhya, M., and Siva, E. P.
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MASS transfer ,CHEMICAL reactions ,CHANNEL flow ,RADIATION ,REYNOLDS number ,CONVECTIVE flow - Abstract
Magneto hydrodynamic (MHD) varied convection stream of a thick, incompressible and electrically directing liquid in a perpendicular channel is examined logically. An attractive field of uniform quality is connected opposite to the planes of the channel dividers. The liquid is followed up on by an intermittent variety of the weight angle the vertically upward way. The temperature of one of the plates is non-uniform and the temperature complexity of the dividers of the channel is adequately high to prompt warmth exchange in light of radiation. The liquid and the divert turn as one with a precise speed about the hub ordinary to the plates of the channel. An careful logical arrangement of the issue is gotten. It is found that the speed profiles decrease because of increase in either Reynolds number (or) Hartmann number (or) radiation parameter. The temperature profiles increases steadily due to either in radiation parameter concentration profiles increase because of increase in rotation parameter (or) Schmidt number (or) chemical reaction parameter. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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12. Effect of Mass Transfer and Slip Effect on Viscoelastic Fluid In A Vertical Channel With Heat Source and Radiation.
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Govindarajan, A., Rajesh, K., Vidhya, M., and Siva, E. P.
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MASS transfer ,RADIATION sources ,HEAT radiation & absorption ,FREE convection ,SLIP flows (Physics) ,REYNOLDS number ,GRASHOF number - Abstract
In this paper an oscillatory stream of anelectrically and viscoelasticleading liquid through a porous medium limited by two interminable vertical similar plates is talked about within the sight of heat source and radiation with impact of mass transfer and slip parameter. One of these plates is exposed to a slip-stream condition and other to a no-slip condition. The weight inclination in the channel wavers with time. An attractive field of uniform quality is connected toward the path opposite to the plates. The initiated attractive field is disregarded because of suspicion of little attractive Reynolds number. The temperature contrast of the two plates is additionally accepted sufficiently high to instigate heat transfer because of radiation. A shut form investigative answer for the issue is acquired. The investigative outcomes are assessed statistically and afterward exhibited graphically to talk about in part the impacts of various relevant constraints going into the issue. It is established that the speed profiles increment because of increment in Reynolds number or there is increment in Grashof number for mass transfer and a switch number is noted on the profiles of the speed at whatever point there is an expansion in either attractive parameter or heat source parameter. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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13. Effects of Heat Source Parameter on Oscillatory Flow With Mass Transfer in The Presence of The Transverse Magnetic Field.
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Lawanya, T., Vidhya, M., Govindarajan, A., and Siva, E. P.
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MASS transfer ,MAGNETIC fields ,NUSSELT number ,HEAT ,LORENTZ force ,FREE convection - Abstract
In the present paper, we analyze the effects of chemical reaction and mass transfer in the presence of transverse magnetic field for an oscillatory flow through a porous medium along with heat source. The analytical solutions are obtained using series method in covered form. The impact of different dimensionless parameters pertinent to a velocity, temperature and concentration profiles are explored and investigated through graph. The velocity profile decreases when there is an increase in magnetic parameter due to the gravitational pull i.e., Lorentz force. Velocity profiles decreases when there is an increase in Schmidt number Sc, Reynolds number Re. Velocity also increases with increase in Gr and Gc. It’s likewise seen that the temperature θ decreases with imcreases im ω amd imcreases with N, Pe and ∝. Increase in Sc, Kc, ω, increases the species concentration. Nusselt number, Sherwood number and skin friction are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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14. Chemical Reaction of Free Convective MHD Flow Through Vertical Porous Plate with Variable Temperature Through A Porous Medium with Heat and Mass Transfer.
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Juliet, S. Sheeba, Vidhya, M., Govindarajan, A., Siva, E. P., and Priyadarshini, E.
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FREE convection ,CONVECTIVE flow ,MASS transfer ,CHEMICAL reactions ,POROUS materials ,HEAT transfer - Abstract
In this paper we have studied Chemical Reaction of free convective MHD flow through vertical porous plate with variable temperature through a porous medium with heat and mass transfer. Considered the vertical plate and the medium of flow are porous. The effects of the physical parameters on the velocity, temperature, concentration, skin friction, Nusselt number have been analyzed through graphs and tables. The present study has great significance in different field of science and engineering. These flows appear in a wide variety of industrial applications and chemical process industries. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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15. Effect of chemical reaction and heat source on oscillatory flow of couple stress fluid in wavy channel.
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Lawanya, T., Vidhya, M., Govindarajan, A., and Siva, E. P.
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HEAT of reaction ,HYDRAULIC couplings ,CHEMICAL reactions ,HEAT transfer coefficient ,HEAT radiation & absorption ,MASS transfer coefficients - Abstract
The present work is to discuss the effects of heat and mass transfer on oscillatory flow under the influence of couple stress fluid in wavy channel in the presence of chemical reaction. The effect of thermal radiation, buoyancy, chemical reaction parameter and heat source parameter on the couple stress fluid were taken into Considerations with varying temperature, concentration and slip boundary condition. The fluid is assumed to be electrically conducting in the presence of externally applied uniform magnetic field. The analytical solutions in closed form are obtained for momentem, energy and concentration equations. The effect of various parameters on the fluid velocity, temperature and concentration are analysed using graphs. The rate of heat and mass transfer coefficients at the walls are calculated. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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16. Effects of Thermal Diffusion and Mass Transfer on Oscillatory Flow through Porous Medium in the Presence of Magnetic Field with Heat Source.
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Niranjana, N., Vidhya, M., Govindarajan, A., Siva, E. P., and Priyadarshini, E.
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MASS transfer ,POROUS materials ,DIFFUSION ,MAGNETIC fields ,NUSSELT number ,FREE convection ,RADIATIVE transfer equation - Abstract
This paper deals with the combined effect mass transfer and sorect effect for the oscillatory flow in the transverse attractive field and radiative warmth exchange to shaky stream of a directing optically dainty liquid through a channel recorded with immersed permeable medium and non-uniform dividers temperature. The thermal diffusion and mass transfer effects are added into the governing equations and the results are obtained through petribution technique. Various parameters like Grashof number, Modified Grashof number, Magnetic parameter, Radiation parameter, Peclet number, Darcy number, Heat source parameter, Chemical reaction parameter, Porous medium parameter, Schmidt number, Thermal diffusion parameter are all discussed, and results are analyzed by s graphs for velocity temperature and concentration profiles. The rate of skin friction and Nusselt number are also discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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17. Effect of Chemical Reaction on Oscillatory Flow Through Porous Medium with Mass Transfer and Heat Source.
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Juliet, S. Sheeba, Vidhya, M., Govindarajan, A., and Siva, E. P.
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OSCILLATING chemical reactions ,MASS transfer ,CHEMICAL reactions ,POROUS materials ,HEAT transfer ,SLIP flows (Physics) - Abstract
We investigate the effect on the unsteady oscillatory flow through a vertical channel with non-uniform wall temperature. The fluid is subjected to the chemical reaction with mass transfer and the velocity slip through the porous medium is taken into consideration. Exact solutions, governing the fluid flow of the dimensionless equations are obtained and the effects of the flow parameters with substance responses and mass exchange on temperature, speed profiles, skin erosion and rate of warmth exchange are examined and appeared. It is seen that skin erosion increments on both channel plates as infusion increments on the warmth source. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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18. Mass Transfer Effects on Flow Over a Vertical Plate Oscillating in Porous Plate in the Presence of Transverse Magnetic Field.
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Niranjana, N., Vidhya, M., Govindarajan, A., Siva, E. P., and Priyadarshini., E.
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MASS transfer ,MAGNETIC fields ,PRANDTL number ,FREE convection ,GRASHOF number ,SURFACE temperature - Abstract
This present paper investigates the impact of radiation on liquid stream and warmth and mass exchange over a vertically swaying permeable level plate installed in permeable medium with wavering surface temperature. Mass transfer effects are added into the governing equations. The analytic solutions of the velocity, temperature and concentration profiles are obtained. The effect of physical parameters Prandtl number Pr, Grashof number Gr, Suction parameter S, Magnetic parameter, Darcy number and radiation parameter R, Schmidt number Sc, Modified Grshof number Gc on the velocity, temperature and concentration profiles are analysed and the results are depicted through graph. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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19. Average Maps Model Of Super Fuzzy Cognitive To Analyze Middle Class Family Problem.
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Chandrasekaran, A. D., Ramkumar, C., Siva, E. P., and Balaji, N.
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MIDDLE class families ,CONCEPT mapping ,SYSTOLIC blood pressure ,PERIPHERAL vascular diseases ,BRACHIAL artery - Abstract
In this manuscript we use the new fuzzy model called ASFCM, to study the problems of middle class family. Here we deal with families on a particular group, here we take all the families according to their income. For the group of expert opinions associated with the analysis of family problem happen to vary widely as they are all from different categories. These expert’s opinions varies according to their income. So this new technique, which we have introduced, is found to be a relevant tool in the analysis of the problem under investigation. This manuscript has 3 parts. Section one is introduction of the new notion of Average Super Fuzzy Cognitive Maps (ASFCMs). Section two deals the application of the new technique to the family problems. The third section gives the conclusions. The ankle-brachial index (ABI) is defined as the ratio of the Systolic Blood Pressure (SBP) measured at the ankle to the SBP measured at the brachial artery. Studies show that ABI can also indicate atherosclerosis at various vascular sites. Therefore it can be used as a prognostic marker tool for cardiovascular events and functional impairments, even in the absence of symptoms of peripheral artery diseases (PAD). The standard threshold value of ABI value of 0.9 appears to be lower in patients with complications. A pilot study has been conducted on 77 subjects. Results show that ABI measurement can be used as a screening tool for PAD but requires further larger study for its consolidation. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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20. Non - linear Blood Flow Analysis on MHD Peristaltic Motion of a Williamson Fluid in a Micro Channel.
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Prakash, J., Balaji, N., Siva, E. P., and Chanrasekaran, A. D.
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BLOOD testing ,BLOOD flow ,MOTION ,FLUID flow ,MAGNETOHYDRODYNAMICS ,FLUIDS - Abstract
The blood movement of a Williamson fluid with uniform applied magnetic field is studied in a micro-channel produced by the transport of the waves of peristalsis by the unchanged speed however having distinct amplitudes and phase on the elastic walls. The article is also expressed and examined by a regular perturbation sequences of a Weissenberg number as a parameter. We further obtain an explicit design for the axial velocity and the pressure gradient up to the first order. The impact of different pertinent parameters of the fluid flow phenomena is exposed and conversed with the assistance of several graphs. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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21. Flame Retardant Co-Solvent Incorporation into Lithium-Ion Coin Cells with Thin-Film Si Anodes.
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Dunn, Ronald E., Nadimpalli, Siva E. V., Guduru, Pradeep, and Lucht, Brett L.
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FIREPROOFING agents ,THIN film research ,ELECTROCHEMICAL electrodes ,ELECTROCHEMICAL analysis - Abstract
Flame retarding co-solvents triphenyl phosphate (TPP) and dimethyl methylphosphonate (DMMP) were incorporated into a standard binary LiPF
6 /ethylene carbonate (EC)/Ethyl methyl carbonate (EMC) electrolyte with and without the anode solid electrolyte interface (SEI) film forming additive, lithium bis(oxalato)borate (LiBOB). Thin-film silicon/Li cells were cycled with the different electrolytes. The standard electrolyte has poor cycling performance losing ~ 50% of the initial capacity during the first 50 cycles. Electrolytes containing TPP and DMMP show comparable cycling performance to the standard electrolyte. Incorporation of LiBOB into the standard electrolyte or the standard electrolyte containing flame retarding co-solvents results in improved cycling efficiency and capacity retention. Ex-situ analysis via X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) provides insight into the role of LiBOB in the improved cycling performance and SEI structure and composition. [ABSTRACT FROM AUTHOR]- Published
- 2014
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22. Journal of Physics. Conference Series
- Author
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Rahayu, Yuni Sri, Ekawati, Rooselyna, Nandiyanto, Asep Bayu Dani, Lukito, Agung, Wibawa, Setya Chendra, Purnomo, Yoppy Wahyu, Roza, Liszulfa, Aziz, Tian Abdul, Perbowo, Krisna Satria, Ulfah, Syafika, Escobar, Carlos Ruiz, Noordmans, Jacob, Lehnert, Ralf, Potting, Robertus, Meshkov, Sydney, Faryad, Muhammad, Sunaryo, Geni Rina, Purba, Julwan Hendry, Olivieri, Giacomo, Rajo-Iglesias, Eva, Gargano, Angela, Coraggio, Luigi, Itaco, Nunzio, Chruściel, Piotr T., Grant, James, Kunzinger, Michael, Minguzzi, Ettore, Bylander, Jonas, Löfwander, Tomas, Misiorny, Maciej, Motlan, Motlan, Restuati, Martina, Rajagukguk, Juniastel, Gröbner, Julian, Costa-Felix, Rodrigo P. B., Jiaotong, Yong Yue Xi'an, Tahir, Dahlang, Benova, E., Atanasova, M., Khaerudini, Deni S., Febriani, Febty, Oemry, Ferensa, Sugihartono, Iwan, Setiawan, Riza, Syuhada, Syuhada, Widayatno, Wahyu Bambang, Sugiarti, Eni, Ma, Yufei, Isnaeni, Isnaeni, Izzuddin, Hubby, Susila, I Putu, Sudiro, Toto, Herbani, Yuliati, Tai, Yan, Sanden, M.C.M. van de, Suris, R. A., Vorobjev, L. E., Firsov, D. A., Shalygin, V. A., Raikher, Yuriy, Balasoiu, Maria, Rogachev, Andrey, Bunoiu, Madalin, Jatmiko, Budi, Madlazim, Madlazim, Munasir, Munasir, Supardi, Imam, Deta, Utama Alan, Govindarajan, A., Siva, E. P., Suja, K., Jimenez, Javier, Flórez, Fernando Durán, Niño, Ely Dannier V., Atta Makki, Sameer, Abdul Latef, Firas Abdul Hameed, Tawfig, Luma Naji Mohammed, Al-Radi Al-Bakri, Nahla Abdul, Shakir, Raied Mustafa, Junjunan, Soleh Fajar, Prayogi, Afrido, Windya, Sridana, Dafik, Dafik, Surzhikov, Sergey T., Vaz da Costa, Bismarck, Martins, Paulo Henrique, Mol, Lucas Alvares, Pereira, Luiz Felipe C., Plascak, João Antonio, Mandaglio, Giuseppe, Trifirò, Antonio, Trimarchi, Marina, Indriyanti, Nurma Yunita, Ramli, Murni, Karyanto, Puguh, Pramesti, Getut, Warsito, Budi, Putro, Sapto Purnomo, Khumaeni, Ali, Kettani, Houssain, Sivakumar, R., Song, Iickho, Hernandez, Hector, Chacón, Guillermo, Sabido, Miguel, Raj, Ewa, Znajdek, Katarzyna, Hoang, Trinh Xuan, Tuan, Hoang Anh, Tuoc, Vu Ngoc, Taniguchi, Shigeru, Arima, Takashi, Ohzeki, Masayuki, Teppei, Ikeya, Kuwatani, Tatsu, Nakanishi-Ohno, Yoshinori, Miyama, Masamichi J., Obuchi, Tomoyuki, Averkiev, Nikita S., Poniaev, Sergey A., Sokolovskii, Grigorii S., Han, Jong, Kim, Ki-Seok, Correa, Rafael, Roa, Luis, Soto, Leopoldo, Navarro, Ignacio Herrera, Kaczmarczyk, Stefan, Zhao, Yichuan, Maeda, Atsutaka, Yoshida, Yoshiyuki, Hidaka, Mutsuo, Kuwabara, Toshihiko, Hama, Takayuki, Kuroda, Mitsutoshi, Takahashi, Susumu, Yamanaka, Akinori, Koscielniak, Shane, Khalimullovich, Salakhov Myakzyum, Vladimirovich, Samartsev Vitalii, Khamitovich, Gainutdinov Renat, Tseng, Juinling, Kotenko, Igor, Asnafi, Nader, Sokołowska, Dagmara, Acosta, Luis, Amador-Valenzuela, Paulina, Velazquez, Victor, Spindloe, Christopher, Risdiana, Risdiana, Furukawa, Yukio, Sulaiman, Shukri, Rusydi, Andrivo, Alatas, Husin, Oughaddou, Hamid, Kara, Abdelkader, Bendounan, Azzedine, Lasri, Karima, Mayne, Andrew, Kaddouri, Abedlilah, Rochdi, Nabil, El Boujlaidi, Abdelaziz, Lemaire, Jean-Louis, Amine, Khalil, Tétard, Laurène, Saadoune, Ismael, Jafri, Zubir Mat, Mahmud, Shahrom, Omar, Ahmad Fairuz, Arshad, Suhana, Gorlatch, Sergei, Mladenov, Georgi, Mufti, Nandang, Ivanov, V. A., Grishina, I. A., Voronova, E. V., Subiantoro, Agung Wijaya, Suyanto, Slamet, Butar Butar, Ferry, Borman, Vladimir D., Zank, G. P., Muskulus, Michael, Bottasso, Carlo L., Tande, John Olav Giæver, Kvamsdal, Trond, Fiangga, Shofan, Jakfar, M., Tomasini, Enrico Primo, Li, Wei, Sumiyoshi, Abe, Wang, Alexandre, Morales, Jimmy Alexander, Reyes, Ángel Manuel Meléndez, Gutiérrez, Jorge Andrés Calderón, Palma, Ricardo A. Torres, Ramdani, Rahmat, Kurniawati, Frida, Chen, Chuei Yee, Lee, Lai Soon, Kilicman, Adem, Ismail, Fudziah, Midi, Habshah, Gafurjan, Ibragimov, Husain, Sharifah Kartini Said, Ibrahim, Siti Nur Iqmal, Romanenko, Vladislav, Bogdanova, Ekaterina, Smirnov, Anton, Balakin, Boris, Simon, Martin, Kolbinger, Bernadette, Widmann, Eberhard, Karshenboim, Savely, Sivasankaran, S., Eswaramoorthi, S., Sudira, Putu, Djatmiko, Istanto Wahyu, Asnawi, Rustam, Suprapto, Nadi, Herawan, T., Vlachos, Dimitrios S., George, Fr. Augustine, Pandian, A. Sevuga, Vinothina, V., Donald, A. Cecil, Laosiritaworn, Y., Pattanaporkratana, A., and Thountom, S.
- Published
- 2018
23. Effect of Preoperative Use of Nonsteroidal Anti-inflammatory Drugs on Dental Sensitivity Induced by Dental Bleaching in the Dental Office: A Systematic Review and Meta-analysis.
- Author
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da Silva A, Muniz R, de Assis C, da Siva EP, de Albuquerque MS, Lago M, and Braz R
- Subjects
- Humans, Anti-Inflammatory Agents, Non-Steroidal adverse effects, Dental Offices
- Abstract
Aim: This systematic review and meta-analysis evaluated the effect of using nonsteroidal anti-inflammatory drugs (NSAIDs) before dental bleaching sessions in the dental office on postoperative sensitivity., Methods: The review is reported according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses checklist and registered on International Prospective Register of Systematic Reviews under number CRD42020210054. Randomized clinical trials published in the English language that compared the preventive use of NSAIDs with a placebo on the sensitivity resulting from dental bleaching in the dental office were selected, with no limitation on the year of publication. The electronic searches took place in PubMed/MEDLINE, Scopus, Web of Science, and Cochrane Library and were carried out independently by two researchers. A total of 30 articles were obtained; seven were selected according to the inclusion criteria., Results: No significant differences were found in the reduction of dental sensitivity between the experimental group compared to the placebo during the session (p=0.32; mean difference [MD]=-0.30; 95% CI, -0.88 to 0.29), immediately after the session (p=0.22; MD=-0.29; 95% CI, -0.75 to 0.17), up to 1 hour later (p=0.10; MD=-0.94; 95% CI, -2.06 to 0.18), and between 1 and 24 hours after the procedure (p=0.78; MD=-0.11; 95% CI, -0.90 to 0.68). The incidence of sensitivity between the groups also did not show statistically relevant differences (p=0.60; MD=1.15; 95% CI, 0.69-1.92). Furthermore, none of the studies reported side effects in any patient., Conclusion: This systematic review and meta-analysis indicates that the use of NSAIDs before dental office bleaching is not effective in reducing dental sensitivity during or up to 24 hours after the procedure. In addition, there was no difference in the incidence of sensitivity between the experimental and placebo groups., (©Operative Dentistry, 2022.)
- Published
- 2022
- Full Text
- View/download PDF
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