Chemistry & IndustryVolume 87, Issue 9 p. 22-25 Sustainability Eco Friendly Textiles First published: 18 September 2023 https://doi.org/10.1002/cind.10156AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms and Conditions of Use check box below share version article.I have read accept the Wile...

This paper presents the modeling, the detailed simulation and the test of an efficient medium voltage adjustable speed drive. The system consists on a three-level Neutral-Point Clamped (NPC) inverter supplied by a 12-pulse rectifier. To achieve a motor-friendly supply, an LC filter is inserted between inverter output terminals and induction motor terminals. A Direct Torque Control (DTC) tunes t...

We report on Multimedia Examinations successfully accomplished in a physics lecture for engineering freshmen. The use of New Media enables us to create new types of questions, including Java-based applets or those requiring internet-based research. The new forms are presented in detail. Economically priced hardware solutions and user-friendly software for both teachers and students are realized...

This paper elaborates the mutual relation of energy, economy, environment and sustainable development, analyzes the key factors affecting energy efficiency. By determining the goal and connotation of energy efficiency, this paper establishes the evaluation model of energy efficiency, and constructs the energy utilization efficiency evaluation system of energy supply, economic growth, environmen...