Tài liệu Nano and Microelectromechanical Systems P3 doc

... LLC CHAPTER 3 STRUCTURAL DESIGN, MODELING, AND SIMULATION 3.1. NANO- AND MICROELECTROMECHANICAL SYSTEMS 3.1.1. Carbon Nanotubes and Nanodevices Carbon nanotubes, discovered in 1991, are molecular ... missiles, manipulators and robots, spacecraft, surface and underwater vehicles) are driven by requirements and standards which must be guaranteed. The vibration, structural integ...

Ngày tải lên: 25/01/2014, 13:20

... 2 MATHEMATICAL MODELS AND DESIGN OF NANO- AND MICROELECTROMECHANICAL SYSTEMS 2.1. NANO- AND MICROELECTROMECHANICAL SYSTEMS ARCHITECTURE A large variety of nano- and microscale structures and devices, ... structures and devices, as well as NEMS and MEMS (systems integrate structures, devices, and subsystems), have been widely used, and a worldwide market for NEMS...

Ngày tải lên: 25/01/2014, 13:20

... devices, and subsystems. The studied nano- and microscale structures and devices have dimensions of nano- and micrometers. To support the nano- and microtechnologies, basic and applied research and ... sites), nanosurgery and nanotherapy, genome synthesis and diagnostics, nanoscale actuators and sensors (disease diagnosis and prevention), nonrejectable nano- artific...

Ngày tải lên: 25/01/2014, 13:20

... where N stands for the number of docu- ments in the collection and df (t) is the number of documents that contain the term (the so-called document frequency of t). Given a document vector d and a query ... stopword elim- ination, and stemming. The intuition of vector space retrieval is to map both document and query texts to n-dimensional vectors d and q, respectively. n stands for...

Ngày tải lên: 14/12/2013, 15:16

... Radiowave propagation and handover criteria for microcells, B. Telecom Tech. J., 8, Oct. 1990, 50–61. [24] Anderson J.B., T.S. Rappaport and S. Yoshida, Propagation measurements and models for wireless ... random variable of the error in S 0 (dB) δ 0 random variable of the power control error in the received interference power ε random variable with standard deviation p 2 σ e λ shadow f...

Ngày tải lên: 14/12/2013, 23:15

... inaccurate and uncertain data treatment and modeling by learning. 2 H. Maaref, C. Barret / Robotics and Autonomous Systems 38 (2002) 1–18 which permits the robot to reach its destination and to generate ... M (medium) and B (big). The fuzzy rules have the following form: • If R, L and p are zero then the planned path following strategy is activated (Sp). • If R and L are...

Ngày tải lên: 22/12/2013, 21:18

... Rotor and Synchronous Reference Frames 3.7. Nanomachines: Nanomotors and Nanogenerators 4.Control of Nano- and Microelectromechanical Systems 4.1. Fundamentals of Electromagnetic Radiation and ... Control of Nano- and Microelectromechanical Systems © 2001 by CRC Press LLC CHAPTER 1 NANO- AND MICROENGINEERING, AND NANO- AND MICROTECHNOLOGIES 1.1. INTRODUCTION The d...

Ngày tải lên: 14/03/2014, 14:20

... STRUCTURAL SYNTHESIS OF NANO- AND MICROELECTROMECHANICAL ACTUATORS AND SENSORS New advances in micromachining and microstructures, nano- and microscale electromechanical devices, analog and digital ICs, ... and knowledge regarding physical principles must be augmented for designing nano- and © 2001 by CRC Press LLC microstructures as well as nano- and microdevices. Throu...

Ngày tải lên: 17/10/2013, 11:15

... NANO- AND MICROELECTROMECHANICAL SYSTEMS 4.1. FUNDAMENTALS OF ELECTROMAGNETIC RADIATION AND ANTENNAS IN NANO- AND MICROSCALE ELECTROMECHANICAL SYSTEMS The electromagnetic power is generated and ... control problem . It was illustrated that NEMS and MEMS must be controlled. Nano- and microelectromechanical systems augment a great number of subsystems, and to control...

Ngày tải lên: 19/10/2013, 18:15

... shutdown, and a unique fault output that can be interfaced into microprocessor controlled systems. Typical motor control functions include open loop speed, forward or reverse direction, run enable, and ... modeling, and simulation © 2001 by CRC Press LLC Chapter three: Structural design, modeling, and simulation 261 © 2001 by CRC Press LLC 262 Chapter three: Structural desig...

Ngày tải lên: 19/10/2013, 18:15