Volume 4 - Issue 5

Performance Investigation of a Monopolar HVDC Transmission System Feeding a Weak AC Network
S. Seenivasan || S. Singaravelu

Abstract: This paper investigates the performance of line commutated converter (LCC) based monopolar HVDC transmission system feeding a weak AC network with hybrid reactive power compensators (RPC's) at the inverter AC side. The hybrid compensator is an equal mix of any two of the following compensators: synchronous compensator (SC); static var compensator (SVC); static synchronous compensator (STATCOM). The HVDC transmission system model is implemented in the Matlab..........
Keywords: Firefly algorithm, Hybrid RPC's, Monopolar HVDC, PI controller, Weak AC network.

Improved Hybrid Behavior Ant Colony Algorithm to Solve the Vehicle Routing Problem
He Min || Pan Dazhi

Abstract: Vehicle routing problem is a NP-hard problem, with the expansion of problem solving more difficult. This paper proposes a hybrid behavior based on ant colony algorithm to solve the problem, ant to different objectives in the first place as the path selection according to the analysis of the impact on the algorithm, then define the ant behavior and design four concrete ant behavior by selecting different ways of ant behavior to form different improved algorithm. Finally, experimental results show that the improved algorithm can solve vehicle routing problems quickly and effectively.
Keywords: Vehicle Routing Optimization, Ant Colony Algorithm, Hybrid Behavior, Ant Behavior Mutation.

Effect of Benzoylation on Properties of Acid Dyes Derived from H-Acid on Nylon 6. 6
Ishegbe Joyce Eko || K. A. Bello

Abstract: Twelve dyes were synthesized by diazotizing six primary aromatic amines, which were subsequently coupled with H-acid(1-napthol-8-amino-3,6-disulphonic acid).Each of these amines wasalso diazotized and coupled with abenzoylated H-acid.The colours obtained were mainly pink, red and orange. The various dyes synthesized were applied onto a Nylon 6.6. The molecular weights of the dyes, as well as their molar extinction coefficients were calculated and their solubility in water was determined.........
Key words: Acid dye, Diazotization, Benzoylation, Exhaustion and Extinction coefficient.

Supercapacitors: the near Future of Batteries
Meet Gidwani || Anand Bhagwani || Nikhil Rohra

Abstract: Supercapacitors or EDLCs (i.e. electric double-layer capacitors) or ultra-capacitors are becoming increasingly popular as alternatives for the conventional and traditional battery sources. This brief overview focuses on the different types of supercapacitors, the relevant quantitative modeling areas and the future of supercapacitor research and development. Supercapacitors may emerge as the solution for many application-specific power systems. Especially, there has been great interest..........

Honey Pot Intrusion Detection System
Kwama Leonard Ogweno || Obare Erick Oteyo || Dola Ochieng' Henry

Abstract: Cyber Warfare is the current single greatest emerging threat to National Security. Network security has become an essential component of any computer network. As computer networks and systems become ever more fundamental to modern society, concerns about security has become increasingly important. There are a multitude of different applications open source and proprietary available for the protection +-system administrator, to decide on the most suitable format for their purpose requires knowledge of the available safety measures, their features and how they affect the quality of service, as well as the kind...........
Key words: network intrusion detection, network security monitor, pot scanner.