This thesis analyzes the behavioral characteristics of network users on the campus network. After capturing and processing communication data and recovering sessions, we can know the group behaviors of the campus users. What’s more, the use of the diskless computer among the cadets can also be seen from this analysis. On the one hand, such analysis can offer the theoretical basis for campus network. On the other hand, this work can help the administrative know more about the cadets’ study situation on the campus network and make better management. To some degree, the analysis reflects the importance of network users’ behavior analysis network management.

Power quality problem is the most sensitive problem in a power system. The objective of this paper is to reduce “harmonics” using a compensation technique. Shunt Active Power Filter (SAPF) is used to eliminate harmonic current and to compensate reactive power for a three phase four wire unbalanced system. Here, a PI controller, Fuzzy Logic and Artificial Neural Network based Controller are employed to maintain DC bus voltage. The advantage of fuzzy control is that it provides linguistic values such as low, medium, high that are useful in case where the probability of the event to occur is needed. The implementation of Artificial Intelligence as controller is that it does not require an accurate mathematical model of the system. A MATLAB/SIMULINK has been used to perform the simulation. Simulink model is developed for three phase four wire system under balanced supply and unbalanced supply condition. The performance of PI, Fuzzy Logic ANN based controller is measured and their results are compared. Simulation results obtained shows that the performance of neural network based controller is found to be better than PI controller and Fuzzy Logic Controller. Anti-windup circuit is added with the PI controller in addition to reduce peak overshoot of DC link overshoot so that steady state is obtained soon.

An epigroup is a semigroup in which some power of any element lies in a sub-group of the given semigroup. The rectangular group congruences on an epigroup are investigated. A characterization of rectangular group congruences on an epigroup in terms of its rectangular group congruence pairs is given. Moreover, it is proved that the rectangular group congruence on an epigroup is uniquely determined by its kernel and hyper-trace.

Since the wheel was invented back in the Stone Age, it was the primary component used in all forms of mechanical transportation. Even today it is the component of choice for almost any type of moving machine like cars. However, the wheel has always had a major disadvantage with short instant elevation changes like stairs. For most uses, climbing stairs or steep jagged rock piles is not a problem which is why the wheel is still almost always used. For the other applications, people looked at animal and human legs which are already proven to work effectively on this type of terrain. The two most effective leg mechanisms are currently Joe Klann’s mechanism which resembles a spider leg and Theo Jansen’s mechanism which resembles a human leg. We have chosen Joe Klann mechanism which has more advantage than Jansen mechanism. The main objective of our paper is to replace the function of wheel with an alternative in order to overcome the difficulty of travelling in uneven terrain. This paper is useful in hazardous material handling, clearing minefields or secures an area without putting anyone at risk.

Batch adsorption of anionic dye Eosin-B (EB) from aqueous solution on anion exchange membrane (EBTAC) has been studied at ambient temperature. The influence of contact time, membrane dosage, ionic strength and temperature on the adsorption of dye from aqueous solution were investigated. Kinetic models such as pseudo-first-order, pseudo-second-order, Elovich model, liquid film diffusion model, modified Freundlich equation and Bangham equation were used to evaluate the experimental data.Endowments such as adsorption capacities, rate constant and related correlation coefficients for every model were measured and discussed.Thermodynamic characteristics illustrated that adsorptionof EB on EBTAC followed pseudo-second-order kinetics.Moreover, change in Gibbs free energy (∆G°), EB on EBTAC revealed that the adsorption of EB dye on EBTAC is an exothermic process.