ISSN:2349-2058
S.No. | Title & Authors | Page No | View | ||
1 |
Title : Periodic Solution in a Predator-Prey System with Hassell-Varley Functional Response and Impulsive Harvesting Authors : Fuyue Cheng, Dongwei Huang
Abstract :
Predator and prey system in ecological biological are often interfered by human exploiting activities in impulsive patterns. For a predator-prey with Hapssell-Varley functional interaction model, firstly, the complex dynamic behaviors including stability of internal equilibrium and the existence, Hopf bifurcation, and the limit cycle are investigated roughly in this paper. Moreover, implementing multiple state feedback controls so that three order-1 periodic solutions driven are induced by disparate dynamics, respectively. Based on the method of successor function , we prove the existences of order-1 periodic solutions. |
1-6 | |||
2 |
Title : Biotechnology Effect of Protease Enzyme Produced From Lactobacillus Species on the Milk Authors : Fekadu Mersha, Dr. Archana Pandita
Abstract :
In the world like developing countries there is rapid growth of human population and urbanization. This growing population uses numerous amounts of milk and milk products in day to day life. It demands to improve yield and quality of milk and milk products through biotechnological techniques like application of enzymes. This paper reviews the protease enzyme producing Lactobacillus species, production of protease enzyme and the effect of protease enzyme on milk and milk products. Lactobacillus species are the major part of the lactic acid bacterial groups. Lactobacillus species have function of pathogen control, probiotic, food producer (fermenter) and enzyme producer. Protease enzymes are hydrolyzed or breakdown peptide bonds of proteins and can break specific peptide bond or complete polypeptide chain to amino chain residues. They are used to apply in leather, pharmaceuticals, protein processing, foods, dairy, diagnostic reagents, soy processing, peptide synthesis and extraction of silver from used X-ray film. The production of protease is mainly affected by media composition, variation in C/N ratio, pH, temperature, and incubation time. Generally optimization of protease starts with conventional method. Conventional optimization method is simple and it supports to select main factors that accelerate production of protease. The major function to apply proteases in the dairy industry is associated with their ability to coagulate milk and to improve taste, flavor and texture in cheese manufacturing. |
7-14 | |||
3 |
Title : Heteroclinic Bifurcation of a Predator-Prey System with Hassell-Varley Functional Response and Allee Effect Authors : Fuyue Cheng, Dongwei Huang
Abstract :
In this paper, we consider a Predator and prey system model with Hassell-Varley function and Alle effect. Firstly, we discuss the complex dynamic behaviors including the existence, stability of internal equilibrium. Moreover, implementing state feedback controls so that the Heteroclinic bifurcation is existed. Finally, choosing |