Mining Associations Using Directed Hypergraphs

This thesis proposes a novel directed hypergraph based model for any database. We introduce the notion of association rules for multi-valued attributes, which is an adaptation of the definition of quantitative association rules known in the literature. The association rules for multi-valued attributes are integrated in building the directed hypergraph model. This model allows to capture attribute-level associations and their strength. Basing on this model, we provide association-based similarity notions between any two attributes and present a method for finding clusters of similar attributes. We then propose algorithms to identify a subset of attributes known as a leading indicator that influences the values of almost all other attributes. Finally, we present an association-based classifier that can be used to predict values of attributes. We demonstrate the effectiveness of our proposed model, notions, algorithms, and classifier through experiments on a financial time-series data set (S&P 500)

Study of MHD SWCNT-Blood Nanofluid Flow in Presence of Viscous Dissipation and Radiation Effects through Porous Medium

In this analysis, a computational study is conducted to examine the two-dimensional flow of an incompressible MHD SWCNT-blood nanofluid, saturated mass and porous medium .In addition to viscous dissipation, thermal radiation is taken into consideration. We developed the mathematical model and useful boundary intensity approximations to diminish the structure of partial differential equations based on the fluid for blood-based SWCNT underflow assumptions. Converted the partial differential equations by applying corresponding transformations to arrive at ODE’s. The above results are solved numerically by the Runge-Kutta 4th order technique. Noticed that there is desirable conformity when interpolated with the numerical one. The effects exhibited the velocity of SWCNT-blood nanofluid enhanced for defined standards of the viscosity parameter. Rise in temperature when various parameters like Prandtl number, Eckert number, and slip parameter are applied on SWCNT-blood. The impact of fluid flow on blood-based SWCNT is discussed graphically, and our results are tabulated along with illustrations. The design concepts, such as the Nusselt quantity and the local skin friction, conform to the analytical approach. Velocity reductions with an increase in CNT’s volume fraction, whereas enhancement in the blood temperature, is noted, which is directed to the rise in the heat mass transfer rates

Evaluation of Low Energy Pack Ration by Short Term Feeding to Soldiers

Fifteen soldiers were fed, during intensive training including a patrol operation, on low energy pack(LEP) ration for eight days for evaluating the suitability of the LEP ration providing 2100 kcal. Measurements were taken for body weight, skinfold thickness, blood cholesterol and phospholipids, glucose tolerance, and a battery of physical performance tests. Data were compared with another two identical groups of soldiers fed either a normal energy fresh(NEF) ration(3631 kcal). The group on LEP ration lost 1.2 kg in body weight while the other two groups maintained their body weight with marginal fluctuations. Besides the slight loss of weight and a transient impairment of glucose tolerance, the subjects on LEP ration showed no other abnormality in any of the parameters studied. The study revealed that the LEP ration was suitable for feeding soldiers for short durations