Analog-controlled light microshutters based on electrothermal actuation for smart windows

application of upfc based on svpwm for power quality improvement

در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...

MEM Analog Tunable Gratings by Electrostatic Actuation

Charge-based analog circuits for reconfigurable smart sensory systems

DEDICATION To my loving family ... ACKNOWLEDGMENTS I would like to express my sincere gratitude to everyone who has supported and helped me during my long journey of pursuing Ph.D. degree. Without them, I would not have made it this far. First of all, I would like to thank my advisor, Dr. Paul Hasler, for giving me all the opportunities at Georgia Tech in all aspects along with his invaluable g...

Light-controlled smart nanotubes based on the orthogonal assembly of two homopolymers.

Two homopolymers can orthogonally self-assemble into pseudo-copolymer based on terminal host-guest interactions, and these supramolecular copolymers further fabricate one-dimensional nanotubes in water. By applying alternate UV/visible light, the aggregates can reversibly assemble and disassemble by means of the association and disassociation of active connection.

MEMS Tunable Gratings with Analog Actuation

We have designed and fabricated tunable gratings with period tunable to within fraction of a nanometer. We actuated the gratings by electrostatic and piezoelectric means, and demonstrated period changes of order 1 nm. Fabrication processes for the two versions are presented. Devices characterization and experimental results are given for respective devices. 2002 Elsevier Science Inc. All rights...