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Soft cover. Zustand: As New. Contents: 1. Silicon controlled rectifiers. 2. Phase controlled rectifiers. 3. A.C. Voltage regulators. 4. Choppers. 5. Inverters. 6. Spice and lab experiments. Appendix. Index. This power electronics text book is systematically developed in order to meet the syllabus of undergraduate course in Electrical Engineering of various Universities in India. The complicated circuits are explained in a lucid manner with the help of waveforms. Comprehensive coverage has been made by the author in this book to explain the power electronic circuits, circuit operation in different modes, circuit design and analysis. Objective type questions have been added at the end of each chapter to have better understanding of the subject. Salient features: Discussion on genetic controllable switches like power MOSFETS, IGBTS, GTO, Power BJTS etc. Crystal clear explanation on three phase converter circuits. PSPICE Programs.

Hardcover. Zustand: New. Zustand des Schutzumschlags: New. 1st Edition. Contents: Preface. 1. General approach to the subject. 2. Good laboratory practices. 3. Entry and exit of personnel into microbiology laboratory. 4. Handling of spillage in microbiology laboratory. 5. Cleaning and sanitization of the microbiology laboratory. 6. Cleaning of glassware. 7. Cleaning and maintenance of dynamic pass box. 8. Fumigation of microbiology laboratory. 9. Disposal of the used Petri plate cultures biological indicators and slants. 10. Preparation and usage of disinfectant. 11. Handling and storage of primary standards. 12. Maintenance of laminar air flow unit. 13. Maintenance of desiccators. 14. Operation and calibration of micropipettes. 15. Operation cleaning and verification of colony counters. 16. Handling usages and cleanings of anaerobic Jar.' Industrial microbiology encompasses pharmaceutical microbiology. Pharmaceutical microbiology focuses on the drug safety aspect. Pathogenic micro-organisms like bacteria, yeasts, moulds are all possible contaminants of medicines causing the damage to the drugs and thus raising the question of drug safety during production. To avoid this risk a stringent, regulated processes should necessarily be followed while preparation. Testing of pharmaceutical products is carried out according to a pharmacopeia .