There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

According to W. Edwards Deming, American companies require nothing less than a transformation of management style and of governmental relations with industry. In Out of the Crisis, originally published in 1982, Deming offers a theory of management based on his famous 14 Points for Management. Management's failure to plan for the future, he claims, brings about loss of market, which brings about loss of jobs. Management must be judged not only by the quarterly dividend, but by innovative plans to stay in business, protect investment, ensure future dividends, and provide more jobs through improved product and service. In simple, direct language, he explains the principles of management transformation and how to apply them.

Out of the Crisis

The boundary layer equations for plane, incompressible, and steady flow are 

$$\matrix{ {u{{\partial u} \over {\partial x}} + v{{\partial u} \over {\partial y}} = - {1 \over \varrho }{{\partial p} \over {\partial x}} + v{{{\partial ^2}u} \over {\partial {y^2}}},} \cr {0 = {{\partial p} \over {\partial y}},} \cr {{{\partial u} \over {\partial x}} + {{\partial v} \over {\partial y}} = 0.} \cr }$$

Boundary Layer Theory

Series Preface * Preface to the Third Edition * 1 Linear Systems * 2 Nonlinear Systems: Local Theory * 3 Nonlinear Systems: Global Theory * 4 Nonlinear Systems: Bifurcation Theory * References * Index

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Differential Equations and Dynamical Systems

Numerous studies indicated a tremendous need of a competent leadership to lead transformation process within the South African small and medium enterprises (SMEs), especially after 1994. Over the past years, a number of SMEs failed in innovation due to lack of innovative culture. Leadership has been proven as a critical factor to create an innovative culture within organisations. Thus, this paper proposes a theoretical model to emphasize the impact of innovative leadership on organisational culture. Data were collected through a semi-structured questionnaire from a group of SMEs (n = 15) within the manufacturing sector from the Western Cape. A descriptive analysis was carried out through the SPSS 19 program. Both alternative (H 1) and null (H 0) hypothesis were used to test the relationship between leadership characteristics and organisational culture. The results revealed that the key factors such as lack of business management skills, knowledge of leadership transition, education and training, market and technological know-how, entrepreneurial drive, and resistance of changes remained the primary determinants for leaders to manage innovation successfully in SMEs. The model provided a guideline for leaders to influence employees to be creative and innovative to ensure the success of innovation within their organisations.

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The impact of innovative leadership on organisational culture within South African small and medium enterprises in the Western Cape, South Africa

CITATION: Kumar, D. S., et al. 2019. Mixed convective flow of a visco elastic fluid between two porous parellel plates. International Journal of Recent Technology and Engineering, 8(3):4830-4834, doi:10.35940/ijrte.C6871.098319.

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Mixed convective flow of a visco elastic fluid between two porous parellel plates

In this study we examined the entropy generation in the three-dimensional flow of nanofluid with graphene nanoparticles. Viscous heating function is added in the energy equation to study fluid frictional effects on entropy generation. The modeled equations are converted into ordinary differential equations using appropriate dimensionless quantities. Shooting technique is implemented to acquire numerical solutions. The numerical solutions are also obtained by using Matlab built-in boundary value solver bvp4c for the validation of our numerical code. The obtained results reveal that they are in good correlation. The obtained numerical results are represented by various graphs and illustrated in great detail.

Minimization of Entropy Production in Three Dimensional Dissipative Flow of Nanofluid with Graphene Nanoparticles: A Numerical Study

A study on entropy generation and heat transfer in a magnetohydrodynamic flow of a couple-stress fluid through a thermal nonequilibrium vertical porous channel

This paper aims to study thermal effects in an unsteady hydromagnetic flow of a pressure-driven, reactive, variable viscosity, electrically conducting third-grade fluid through a porous saturated medium with asymmetrical convective boundary conditions. It is assumed that the chemical kinetics in the flow system is exothermic and that the asymmetric convective heat exchange with the surrounding medium at the surfaces follows Newton’s law of cooling. The coupled nonlinear partial differential equations governing the flow and heat transfer are derived and solved numerically using a semi-implicit finite difference scheme. The flow and heat transfer characteristics are analyzed graphically and discussed for different values of the parameters embedded in the system. One of the major findings in the study is that the thermal criticality values of the reaction parameter increase with the magnetic field intensity and the tortuosity of the porous medium .

Oluwole Daniel Makinde

Papers

The impact of innovative leadership on organisational culture within South African small and medium enterprises in the Western Cape, South Africa

Mixed convective flow of a visco elastic fluid between two porous parellel plates

Minimization of Entropy Production in Three Dimensional Dissipative Flow of Nanofluid with Graphene Nanoparticles: A Numerical Study

A study on entropy generation and heat transfer in a magnetohydrodynamic flow of a couple-stress fluid through a thermal nonequilibrium vertical porous channel

Analysis of Unsteady MHD Reactive Flow of Non-Newtonian Fluid Through a Porous Saturated Medium with Asymmetric Boundary Conditions