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A phase-locked-loop(PLL) controller is designed in this paper for fast velocity tracking of unmanned underwater vehicle(UUV). Digital encoder output encodes measured velocity of actuator and its phase is compared with reference frequency of desired velocity command in the feedback loop to achieve fast convergence of tracking error. This makes possible dynamics model of UUV motion be controlled by...
We have developed a new detection method of organophosphorus (OP) nerve agent using acetylcholine esterase (AchE) and choline oxidase (ChOx) bienzyme system. AchE is inhibited by OP pesticide. So OP can be detected by the inhibition mechanism. To fabricate the AchE/ChOx bienzyme modified biosensing system, poly-L-lysine (PLL) and aldehyde terminated paramagnetic microparticle (MP) were used for enzyme...
Recently, the demand for 3b/cell NAND flash has been increasing due to a strong market shift from 2b/cell to 3b/cell in NAND flash applications, such as USB disk drives, memory cards, MP3 players and digital still cameras that require cost effective flash memory. To further expand the 3b/cell market, high write and read performances are essential. Moreover, the device reliability requirements for...
Utilizing the projected Liouville equation method with equilibrium average projection scheme(EAPS), we study the magnetic dependence of cyclotron resonance effect in the electron-piezoelectric phonon coupling system. We have a more rigorous calculation with moderately weak coupling (MWC) interaction approximation. In MWC interaction scheme, the distribution function part of scattering factor function...
We describe the co-development of a processor and its source-level debugging system using an emulation-based validation technology including hardware emulation, not simulation, Since a source-level debugging system is essential to develop an application system and it takes a long time to validate the functionality of the source-level debugging system, we have adopted hardware emulation for a fast...
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