Results 21 to 30 of about 957,985 (202)

Head-Positioning Control Using Virtual Resonant Modes in a Hard Disk Drive

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In conventional control systems in hard disk drives, it is difficult to compensate for disturbances above the primary mechanical resonance. In this paper, a design method that uses a virtual resonant mode in head-positioning systems of hard disk drives ...
Takenori ATSUMI
doaj   +1 more source

From Lyapunov modes to their exponents for hard disk systems [PDF]

Physical Review E, 2010
We demonstrate the preservation of the Lyapunov modes by the underlying tangent space dynamics of hard disks. This result is exact for the zero modes and correct to order $ $ for the transverse and LP modes where $ $ is linear in the mode number. For sufficiently large mode numbers the dynamics no longer preserves the mode structure.
Chung, Tony, Truant, Daniel, Morriss, Gary P.   +2 more
openaire   +3 more sources

Perturbative QCD at finite temperature and density [PDF]

, 1997
This is a comprehensive review on the perturbative hot QCD including the recent developments. The main body of the review is concentrated upon dealing with physical quantities like reaction rates. Contents: \S1. Introduction, \S2.
Niégawa, A.
core   +2 more sources

Semi-inclusive B Decays and Direct CP Violation in QCD Factorization [PDF]

, 2001
We have systematically investigated the semi-inclusive B decays B->MX, which are manifestations of the quark decay b->Mq, within the framework of QCD-improved factorization.
A. Ali, A. Ali, A.A. Petrov, A.S. Kronfeld, Amarjit Soni, D. Atwood, D. Atwood, D. Atwood, D. Atwood, D. Atwood, D. Atwood, D. Du, D.E. Groom, E.V. Shuryak, F. Araki, G. Buchalla, H. Fusaoku, H. Leutwyler, H.Y. Cheng, H.Y. Cheng, H.Y. Cheng, Hai-Yang Cheng, I. Halperin, J. Cao, J.M. Gérard, L. Wolfenstein, M. Bander, M. Beneke, M. Beneke, M. Beneke, M. Ciuchini, M. Diehl, M. Franz, M.R. Ahmady, M.Z. Yang, P. Ball, P. Ball, P. Faccioli, R. Balest, T. Feldmann, T. Feldmann, T. Feldmann, T. Muta, T.E. Browder, T.E. Browder, W.S. Hou, X. Calmet, X. Calmet, X. Calmet, X.G. He, X.G. He, X.G. He, Z. Ligeti   +52 more
core   +2 more sources

The Modular Circuitry of Apicomplexan Cell Division Plasticity

Frontiers in Cellular and Infection Microbiology, 2021
The close-knit group of apicomplexan parasites displays a wide variety of cell division modes, which differ between parasites as well as between different life stages within a single parasite species. The beginning and endpoint of the asexual replication
Marc-Jan Gubbels, Isabelle Coppens, Kourosh Zarringhalam, Manoj T. Duraisingh, Klemens Engelberg   +4 more
doaj   +1 more source

A General Effective Theory for Dense Quark Matter

, 2004
A general effective action for quark matter at nonzero temperature and/or nonzero density is derived. Irrelevant quark modes are distinguished from relevant quark modes, and hard from soft gluon modes, by introducing two separate cut-offs in momentum ...
Reuter, P. T., Rischke, D. H., Wang, Q.
core   +2 more sources

Extending Soft-Collinear-Effective-Theory to describe hard jets in dense QCD media

, 2009
An extension to the Soft-Collinear-Effective Theory (SCET) description of hard jets is motivated to include the leading contributions between the propagating partons within the jet with partons radiated from a dense extended medium.
Abhijit Majumder, Ahmad Idilbi, J. C. Collins   +2 more
core   +1 more source

Classical Fields Near Thermal Equilibrium [PDF]

, 1996
We discuss the classical limit for the long-distance (``soft'') modes of a quantum field when the hard modes of the field are in thermal equilibrium.
A. Albrecht, A. Bochkarev, A. D. Linde, A. O. Caldeira, A. Schmid, B. L. Hu, B. Müller, Berndt Müller, C. Gong, Carsten Greiner, D. Boyanovsky, D. Boyanovsky, D. Bödeker, D. J. Gross, D. N. Spergel, D. Yu. Grigoriev, E. Braaten, E. Braaten, E. Braaten, E. Calzetta, E. Cortes, E. Wang, F. Lombardo, H. A. Weldon, J. Ambjørn, J. Ambjørn, J. Ambjørn, J. Cloutier, J. J. Halliwell, J. P. Blaizot, J. P. Blaizot, J. Rau, J. Schwinger, K. Chou, L. Kofman, L. V. Keldysh, M. Gell-Mann, M. Gleiser, M. Morikawa, M. Morikawa, M. Morikawa, N. P. Landsman, N. Turok, P. Arnold, P. Arnold, P. F. Kelly, R. Feynman, R. H. Brandenberger, R. P. Feynman, R. P. Parwani, S. Jeon, S.-B. Liao, S.-B. Liao, T. Appelquist, T. S. Biró, T. S. Biró, U. Heinz, W. H. Zurek, Z. Su   +58 more
core   +2 more sources

Multiple Failure Modes，Causes and Prevention of Random Fracture for Hard Tooth Flank Gears

Jixie chuandong, 2022
The history and evolution of the random fracture terms，the morphological features，failure examples，causes and preventive measures of various random fracture modes are comprehensively discussed.
Xiaolu Zhu
doaj  

Spectator interactions and factorization in B -> pi ell nu decay

, 2003
We investigate the factorization of different momentum modes that appear in matrix elements for exclusive B meson decays into light energetic particles for the specific case of B -> pi form factors at large pion recoil.
Beneke, M., Feldmann, Th.
core   +1 more source