Polypyrrole/titanium dioxide nanocomposite (PPy/TiO2) was synthesized by in-situ chemical polymerization of pyrrole (Py) monomer in colloidal suspension of TiO2 anatase. TEM images show that TiO2 anatase nanoparticles with size of around 3–4 nm are randomly imbedded on the surface and inside of PPy grain. The random distribution of TiO2 anatase nanoparticle in PPy matrix form variety of p-n contact on the surface and inside of the materials. As expectation, the charge exchange between oxygen and the PPy affect the p-n depletion regions and then modify the electrical properties of PPy. Upon exposure to the open air the conductivity of the PPy/TiO2 nanocomposite exhibits an increase of about 20 folds much larger than that of neat PPy. The enhancement is accounted for the modification of in the surface conductance of PPy/TiO2 nanocomposite as a combination of the TiO2 coupling and oxygen interaction.

In this era, several organizations are storing their data on cloud storage to meet the requirements of efficient operation like stability, scalability, and availability of services. Data replication services in cloud storage systems are there to improve performance. In this context, the requirements for ensuring data consistency became increasingly important. In this paper, we propose a virtual server solution for updating replication, efficiently resolving resources, detecting, preventing deadlocks at the data center. In this manuscript, we have shown that the proposed solution yields the results for the schema, which ensures consistent data on costs and latency. In this paper, we use the Open Stack tool, which incorporates a proposed algorithm Balancing Consistency Availability On System Physical Machine, for maintaining data consistency in Cloud Storage Systems.