Physical Sciences and Engineering

The study examined rural health care service in Anambra west with a focus on alternative energy source for its electrification. The study adopts literature search and a survey design; questionnaires were administered to three health centers, 13 care givers and 269 clients receiving care in the facilities. The data were presented in tables and analyzed with multiple regression analysis.

The drilling industry has faced a lot of problems due to the poor conditioning of drilling fluids at bottom-hole conditions thus, drilling fluid properties change owing to an elevated temperature and also the properties deteriorate under static conditions hence, affecting drilling operations. However, these problems may lead to non-productive time (NPT) thereby, increasing the cost of operation and it may lead to a kick or blow-out. Attention must be given to a proper selection of drilling fluid as well as effective performance of the rheological properties.

Generation of combustible biogas from anaerobic digestion of food waste is an interesting and developing alternative for the production of a cheap source of energy. In the present work, Torlon polyamide-imide based membrane films were studied for biogas separation. In pure Torlon polymeric membrane, the methane content increased from 62% in feed biogas to 94% methane in retentate. But, there was about 3.7% methane loss into the permeate stream.

In the recent years there is rapid growth in the CMOS technology, which made analog integrated circuits to dominate today’s existing market which provides low cost, and excellent performance of systems. Now-a-days wide band analog signal processing helps to find variety of applications in telecommunications and for the medical electronics. Since we prefer continuous time filtering for the low voltage, low power applications. An analog LPF forms the main building block in all of the systems.

Marine algae are well-known to contain a wide diversity of bioactive compounds, many of which have profitable applications in pharmaceutical, cosmetic, nutraceutical, food and agricultural industries.Accepted antioxidants, existing in several group of algae, which are important bioactive compounds that play a vital role counter to various diseases and including anti-ageing processes and protection of cells from oxidative damage. In this high opinion, reasonably little is known about the bioactivity of Indian algae that could be a potential natural source of such antioxidants.