Dynamics and reliability of access system of high density magnetic recording

... voltage and temperature effects Keywords: magnetic recording, dynamics, access system, piezoelectric actuators, probability, reliability DYNAMICS AND RELIABILITY OF ACCESS SYSTEM OF HIGH DENSITY MAGNETIC ... He Zhimin Doctor of Philosophy Mechanical Engineering Dynamics and Reliability of Access System of High Density Magnetic Recording A...

Ngày tải lên: 15/09/2015, 17:10

... phenomenon of superparamagnetism whereby magnetic grains behave like paramagnetic atoms at high temperature due to thermal agitation [4] The changes of magnetization configuration in magnetic grains ... information We can change the information stored within magnetic grains by applying a magnetic field to change the state of M A strong uniaxial magnetic field can align M o...

Ngày tải lên: 26/09/2015, 09:56

... scale, high density SiOx nanowires have been synthesized by using a novel nm Fe3O4 nanoparticles catalyst The SiOx nanowires with lengths of several tens to hundreds of micrometers and diameters of ... also detected the existence of iron only at the top of SiOx nanowires The fact suggested that the Fe3O4 catalysts play a key role in the formation of Si...

Ngày tải lên: 16/03/2014, 15:11

... STUDY OF BIT- PATTERNED FePt MEDIA FOR HIGH DENSITY MAGNETIC RECORDING SHREYA KUNDU B.Sc Electronics (Hons), University of Delhi, India A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... phase diagram of FePt 32 Figure 2.10 (a) Conventional media and (b) bit patterned media 33 Figure 2.11 Two different approaches of creating patterned m...

Ngày tải lên: 09/09/2015, 11:29

... Contents Introduction 1.1 Background on Magnetic Recording 1.2 The Magnetic Recording Channel 1.3 Signal Processing in Magnetic Recording 1.4 Nonlinearities ... counterparts This thesis focuses mainly on nonlinearities found in longitudinal recording A dominant and well known nonlinearity found in magnetic recording is termed nonlinear transition shift (NLTS) ... Per...

Ngày tải lên: 27/11/2015, 12:23

... and (e) 435 after the inoculation To measure the localization -dynamics of expressed proteins and the motility of single cells simultaneously, we used the on-chip microcultivation system and assayed ... when bacterium was stimulated by aspartate Dashed lines show bacterial division points after 80 of stimulation by aspartate, localized Tar was diffused completely Then...

Ngày tải lên: 11/08/2014, 00:22

... using the following keyword combinations: (glutathione s-transferase OR GST OR GSTT1 OR GSTM1 OR GSTP1) AND (polymorphism OR polymorphisms OR SNP OR mutation) AND (cancer OR malign* OR carcinoma ... analysing a determined polymorphisms between the studies examining it within 1-3 polymorphisms versus studies examining the same polymorphism among more than polymorphi...

Ngày tải lên: 25/10/2012, 10:51

... manufacturing Analysis and performance The principle of operation of reluctance synchronous machines (RSMs) is based on existence of variable reluctance in the air gap of the machine, high reluctance ... P.J and Agu, L.A Theory and Performance of Polyphase Reluctance Machines Proc IEE, 111(8), pp 1435-1445, 1964 [2] Lawrenson, P.J and Gupta, S.K Develop...

Ngày tải lên: 05/09/2013, 16:30

... The nanosheet structure after calcinations was destroyed and changed to nanorods/nanoparticles composite at high temperature [27,30] Conclusions In summary, high surface area nanosheet TiO2 with ... diameter and about 5–10 nm in particles diameter, Fig 6(a–f)) The SEM, TEM, and SAED images of the nanosheet TiO2 calcined at 600 and 700 °C showed almost nanoparticles...

Ngày tải lên: 20/03/2014, 13:06

... techniques, as the frequencies and band intensities of vibrational transitions represent a unique fingerprint of the specific conformation of a molecule SERR and SEIRA spectroscopy of cytochrome c [10] Both ... excitation of surface plasmons of Au is restricted to the region above  550 nm [10] This limitation has severe consequences for SERR spectroscopy: since the elect...

Ngày tải lên: 22/03/2014, 16:20

... of voting system software by requiring that software be submitted to NIST’s National Software Reference Library, and by verifying that the systems, including hardware, software, and software ... laboratories and assessing the test results Page 42 GAO-05-956 Electronic Voting Systems National Initiatives Are Under Way to Improve Voting System Security and Re...

Ngày tải lên: 23/03/2014, 03:20

... function of the power of the pulsed laser and the CW laser The laser beam diameter of the CW laser is 40 ? m At these laser powers, melting does not occur Compared with the pulsed laser bending of ... pulsed laser and a CW laser Laser beams are tightly focused onto the target surface to induce localized residual stress and strain, thus to obtain high precisi...

Ngày tải lên: 06/05/2014, 08:55

... highest in our study were "getting up from a chair" and "walking indoors" and the lowest score was found for the item concerning climbing and descending a stair without a handrail, findings similar ... "computes the global, basic, and advanced locomotor skills of the lower limb amputee with the prosthesis and assesses level of independence" [13] The LCI has...

Ngày tải lên: 18/06/2014, 18:20

... of the eight SF-36 domains, items with domains, item with and items and with all eight domains Rasch analysis In the Rasch analysis, each of the remaining six items were tested individually and ... than actual symptomatology The correlation of symptomatology and arrhythmia, especially atrial fibrillation, has also The new short instrument is a reliable and valid...

Ngày tải lên: 18/06/2014, 18:20