FORMULATION DEVELOPMENT AND EVALUATION OF SOLID LIPID NANOPARTICLES OF ACECLOFENAC USING SOLVENT INJECTION METHOD.

Solid lipid nanoparticles (SLN) of aceclofenac were prepared by solvent injection method. Glyceryl behenate (Compritol 888 ATO) was used as lipid core, and Poloxamer 188 as the surfactant. Isopropyl alcohol (IPA) was used to dissolve both lipid and drug. The mean particle size measured by laser diffraction (LD) was 226.9 nm and the surface morphology was determined by scanning electron microscopy. The entrapment efficiency (EE) was found to be 90%. In-vitro dissolution was found to be 90.22%

Book Review: FDI: Patterns and Trends

Review of Foreign Capital Inflows to China, India and the Caribbean: Trends, Assessments and Determinants by Arindam Banik and Pradip K. Bhaumik; Palgrave-Macmillan, London.FDI, capital inflow, china, India, Caribbean, FDI, Economics

Soft Switched Multilevel Unidirectional High Frequency Link DC/AC converter for Medium Voltage Grid Integration

This paper describes a cascaded multilevel converter topology for direct medium voltage grid integration of photovoltaic sources. The topology uses high frequency magnetic isolation and hence, reducing volume and cost of overall system. The topology is single stage and does not have any inter-stage bulky filter capacitor, thus improving reliability. The low voltage DC side converter active switches are high frequency switched. These active switches are zero voltage switched (ZVS) for most part of the line cycle. The soft-switching is achieved without additional snubber elements. The active switches interfacing the medium voltage grid are switched at line frequency incurring negligible switching loss. The converter has modular structure which also has added advantages of easy repair-replacement. Modulation strategy and soft-switching technique are analyzed in detail. Key simulation results are presented to verify the circuit operation