نتایج جستجو برای: normal non rotating frame

تعداد نتایج: 1917451  

2017
Ercan Aksit Erdal Gursul Fatih Aydin Murat Samsa Fatih Ozcelik

AIM A person with a drop of more than 10% in nocturnal arterial blood pressure during the circadian rhythm is referred to as a dipper and one with a smaller decrease is referred to as a non-dipper. In our study, we aimed to compare the thrombolysis in myocardial infarction (TIMI) frame count in non-dipper and dipper hypertensive patient groups who had normal coronary artery angiography. METHO...

1996
Matthias Ernst Andrew C. Kolbert Klaus Schmidt-Rohr Alexander Pines

An experiment is described that utilizes the truncation of the Hamiltonian in the rotating frame by a radio-frequency field designed to yield an isotropic shift for the dipolar coupling. This approach allows the measurement of a normally orientation-dependent coupling constant by a single isotropic value. The dipolar isotropic shift is closely related to the field-dependent chemical shift in so...

Journal: :Journal of magnetic resonance 2006
Huiming Zhang Yang Xie

Transferring from laboratory frame to off-resonance rotating frame for the (1)H spin can compensate the relaxivity loss for paramagnetic agents at the magnetic field strength higher than 3 Tesla and enhance water relaxation rate constant significantly. A comprehensive theory for calculating the relaxation rate constants in the off-resonance rotating frame is described. This theory considers the...

2005
German Farrher Ioan Ardelean Rainer Kimmich

1. Introduction The most popular principle of diffusion measurements by NMR is the attenuation of spin echoes due to incomplete refocusing of coherences as a consequence of incoherent molecular displacements in the diffusion interval of the pulse sequence [0-Fehler! Verweisquelle konnte nicht gefunden werden.]. Attenuation of echoes on these grounds arises in the presence of pulsed or steady gr...

Journal: :Sig. Proc.: Image Comm. 2009
Songkran Jarusirisawad Hideo Saito

This paper proposes a novel method for synthesizing free viewpoint video captured by uncalibrated pure rotating and zooming cameras. Neither intrinsic nor extrinsic parameters of our cameras are known. Projective grid space (PGS), which is the 3D space defined by the epipolar geometry of two basis cameras, is employed for weak camera calibration. Trifocal tensors are used to relate non-basis ca...

2009
Mehdi Driss

This paper deals with the synthesis of fuzzy state feedback controller of induction motor with optimal performance. First, the Takagi-Sugeno (T-S) fuzzy model is employed to approximate a non linear system in the synchronous d-q frame rotating with electromagnetic field-oriented. Next, a fuzzy controller is designed to stabilise the induction motor and guaranteed a minimum disturbance attenuati...

1993
Hanno Essén

This paper addresses the problem of the separation of rotational and internal motion. It introduces the concept of average angular velocity as the moment of inertia weighted average of particle angular velocities. It extends and elucidates the concept of Jellinek and Li (1989) of separation of the energy of overall rotation in an arbitrary (non-linear) N -particle system. It generalizes the so ...

2005
Martin Vyšohlíd Krishnan Mahesh

The large eddy simulation methodology is applied to predict the flow around a marine propeller in the forward and crashback modes of operation. A non-dissipative, robust numerical algorithm developed by Mahesh et al.(2004, J. Comput. Phys., 197: 215-240) for unstructured grids was extended to include the effect of rotating frame of reference. The thrust and torque coefficients obtained from the...

1999
A. V. Afanasjev

The applications of the extensions of relativistic mean field (RMF) theory to the rotating frame, such as cranked relativistic mean field (CRMF) theory and cranked relativistic Hartree-Bogoliubov (CRHB) theory, for the description of superdeformed bands in the A ∼ 60, 140 − 150 and 190 mass regions are overviewed and compared briefly with the results obtained in non-relativistic mean field theo...

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