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Numerical Treatment for the flow of Casson Fluid and heat transfer Model Over an Unsteady Stretching Surface in the Presence Of Internal Heat Generation/Absorption and Thermal Radiation
Get PDFSeveral important industrial and engineering problems are very difficult to solve analytically since they are high nonlinear. The Chebyshev spectral collocation method possesses an ability to predict the solution behavior for a system of high nonlinear ordinary differential equations. This method which is based on differentiated Chebyshev polynomials is introduced to obtain an approximate solution to the system of ordinary differential equations which physically describe the flow and heat transfer problem of an unsteady Casson fluid model taking into consideration both heat generation and radiation effects in the temperature equation. Based on the spectral collocation method, the obtained solution is introduced numerically to various parameter values
Call for Abstracts and Papers
Get PDFConference topics include but are not limited to: Cybersecurity, Medical Informatics, Smart Systems, E-learning, Library Science, IT for Economic Development, E-Government, Technological Innovations, Digital Marketing, Business Analytics, Cloud Computing, E-business/commerce, Emerging Trends, Digital Accounting, Healthcare IT, IT Auditing/Forensics, Mobile Computing, Organizational Culture & Technology, Social Networking, and Big Data
A numerical method for functional Hammerstein integro-differential equations
Get PDFIn this paper, a numerical method is presented to solve functional Hammerstein integro-differential equations. The presented method combines the successive approximations method with trapezoidal quadrature rule and natural cubic spline interpolation to solve the mentioned equations. The existence and uniqueness of the problem is also investigated. The convergence and numerical stability of the problem are proved, and finally, the accuracy of the method is verified by presenting some numerical computations
Similarity analysis of three dimensional nanofluid flow by deductive group theoretic method
Get PDFThe objective of this paper is to obtain similarity solution of three-dimensional nanofluid flow over flat surface stretched continuously in two lateral directions. Two independent variables from governing equations are reduced by applying deductive two parameter group theoretical method. Partial differential equations with boundary conditions are converted into ordinary differential equations with appropriate boundary conditions. Obtained equations are solved for temperature and velocity. The effect of nanoparticles volume fraction on temperature and velocity profile is investigated
Study of the Restricted Three Body Problem When One Primary Is a Uniform Circular Disk
Get PDFIn this paper we have studied the location and stability of the equilibrium points in the restricted three body problem by taking into consideration the bigger primary as an uniform circular disc. We have observed that there exist six collinear (Li, i = 1::6) and two non-collinear (Li, i = 7; 8) equilibrium points.We have found that the points L1 and L3 move towards the center of mass while L2, L4, L5 and L6 go away from the center of mass as parameter of mass μ increases.We have also observed that the points L1, L2 and L3 move away from the primaries and L4 moves toward the primaries as radius a of the circular disk increases. Also the points L7 and L8 shift towards the center of mass as μ increases. We have found that equilibrium point L1, L2, L3, L4 and L6 are unstable where L5, L7 and L8 are stable for the given values of μ and a. We have also derived the zero velocity curves (ZVC) and periodic orbits around the equilibrium points.We have noticed that in ZVC the outer oval expands and inner oval slightly shrinks as the value of Jacobian constant C increases; we have also discussed the motion around the collinear equilibrium points
Hypergeometric Inequalities for Certain Unified Classes of Multivalent Harmonic Functions
Get PDFIn this paper, we consider unified classes PH (m, A,B) H and QH (m, A,B) H of multivalent harmonic functions F = H +G∈H(m) . Some hypergeometric inequalities for the functions of the class H(m) defined by generalized hypergeometric functions to be in these unified classes and its sub classes TPH (m, A,B) H and TQH (m, A,B) H , respectively, are obtained. Results, involving some integral operators are also given. Further, some special cases of the results are mentioned
Induced hesitant 2-tuple linguistic aggregation operators with application in group decision making
Get PDFIn this article, hesitant 2-tuple linguistic arguments are used to evaluate the group decision making problems which have inter dependent or inter active attributes. Operational laws are developed for hesitant 2-tuple linguistic elements and based on these operational laws hesitant 2- tuple weighted averaging operator and generalized hesitant 2- tuple averaging operator are proposed. Combining Choquet integral with hesitant 2-tuple linguistic information, some new aggregation operators are defined, including the hesitant 2-tuple correlated averaging operator, the hesitant 2-tuple correlated geometric operator and the generalized hesitant 2-tuple correlated averaging operator. These proposed operators successfully manage the correlations among the elements. After investigating the properties of these operators, a multiple attribute decision making method based on these operators, is suggested. Finally, an example is given to illustrate the practicality and feasibility of proposed method
On Processability of Lemke’s Algorithm
Get PDFLemke’s algorithm is a pivotal kind of algorithm which is developed based on principal pivot transform. We consider several matrix classes to study the relationship among them in the context of linear complementarity problem. These classes are important from Lemke’s algorithmic point of view. In this article we discuss about the processability of Lemke’s algorithm with respect to some selective matrix classes
Rural parents’ beliefs about healthy eating
No full textObjectives: This study explored US rural parents’ perceived facilitators, challenges and motivators to healthy eating. Methods: Qualitative and purposive sampling was used to recruit one hundred (N = 100) parents of children enrolled in the fourth grade to participate in a series of focus group sessions. Eligibility criteria included being the head of the household and having a child enrolled in the fourth grade. Parents were questioned about factors impacting everyday lifestyle practices such as nutrition knowledge and eating habits. Data were analysed using grounded theory and constant comparative method. Results: Twelve focus groups sessions were conducted with parents who self-identified as African American (63%), Hispanic (25%) and Caucasian 2%. The majority (52%) of participants indicated they only had some high school education. Healthy eating among parents was highly dependent on socioeconomic status, time, availability and access to foods. Facilitators to healthy eating were school lunch programmes, nutrition education and family preferences. Findings demonstrate that parents tried to eat meals at home, but many factors (fear of genetically modified foods, money and time) prevented healthy eating and food preparation. Parents who consumed or prepared meals at home did so because of family influence and the fear of being unhealthy. Conclusion and implications: This study provides an in-depth understanding of rural parents’ efforts to promote healthy eating at home regardless of socioeconomic challenges
Biomineralized conductive PEDOT: PSS-coated PLA/PHBV/HA nanofibrous membranes
No full textConductive materials are potential candidates for developing bone tissue engineering scaffolds as they are nontoxic and can enhance bone tissue regeneration. Their bioactivity can be enhanced by depositing biomineralization in simulated body fluid (SBF). In the current study, a composite electrospun membrane made up of poly(lactic) acid, poly(3-hydroxybutyrate-co-3-hydroxyvalerate), and hydroxyapatite was fabricated using an electrospinning method. The fabricated membranes were dip-coated with a conductive polymer solution, poly(3, 4-ethylenedioxythiophene) poly(4-styrenesulfonate), to induce conductivity. Characterization of the membranes based on characteristics such as morphology, chemical bonding, and wettability was conducted using scanning electron microscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, attenuated total reflectance Fourier transform infrared spectroscopy, and contact angle measurement. From the results, biomineralization of both coated and noncoated composite membranes was observed on the surface of nanofibers after 21 days in SBF. The membranes provide a superhydrophilic surface as shown by the contact angle. In conclusion, this biomimetic electrospun composite membrane could be used to further support cell growth for bone tissue engineering application. ASAIO Journal 2018; 64: 415-423