Physical Effect of In-Phase and Quadrature Imbalance in Delay-Doppler Domain

2021 ◽  
Author(s):  
Armed Tusha ◽  
Seda Dogan-Tusha ◽  
Ferkan Yilmaz ◽  
Saud Althunibat ◽  
Khalid Qaraqe ◽  
...  
Keyword(s):  
Physical Effect

Time of imagery’s effect on performance and self-efficacy in college baseball players

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Colton Haight ◽  
Sandra Moritz ◽  
Tanis Walch
Keyword(s):  
Self Efficacy ◽  
Repeated Measures ◽  
Group Interaction ◽  
Physical Effect ◽  
Baseball Players ◽  
Repeated Measures Anova ◽  
Significant Time ◽  
Imagery Group ◽  
College Baseball ◽  
Group 2

AbstractThe relationships among the time of imagery use on performance and self-efficacy in college baseball players during a hitting task was examined. Participants (n=24) were randomly assigned to one of three imagery conditions: (a) before practice, (b) during practice, (c) after practice. A one-shot MG-M imagery intervention was used. Results from a 3 (imagery group) ×2 (pretest and posttest) repeated measures ANOVA showed only a significant time by imagery group interaction for self-efficacy (F (2, 21)=4.67, p<0.05). These findings suggest that imagery had a stronger psychological effect than physical effect.

scholarly journals The Physical Effect of Exergames in Healthy Elderly—A Systematic Review

2013 ◽  
Vol 2 (4) ◽  
pp. 205-212 ◽  
Author(s):  
Lisbeth H. Larsen ◽  
Lone Schou ◽  
Henrik Hautop Lund ◽  
Henning Langberg
Keyword(s):  
Systematic Review ◽  
Physical Effect ◽  
Healthy Elderly

THE PHYSICAL EFFECT OF THE THREE YEARS' COURSE

1907 ◽  
Vol 7 (10) ◽  
pp. 767-770
Author(s):  
M. HELENA MCMILLAN
Keyword(s):  
Physical Effect

scholarly journals Deterministic description of a phase transition in a medium of interacting waves

2000 ◽  
Vol 7 (1/2) ◽  
pp. 117-126
Author(s):  
J. Vassalo Pereira
Keyword(s):  
Phase Transition ◽  
Phase Locking ◽  
Physical Effect ◽  
Stationary Waves ◽  
Deterministic Description

Abstract. We describe an effect of phase-locking catastrophe arising in an ensemble of a great number of oscillators interacting by means of their emitting waves. These waves can be either pulsatile, that is, soliton-like, or continuous stationary waves generated by the oscillators considered as resonators. Each one of these waves will introduce certain perturbations among the phases of the oscillators of the ensemble in such a way that it is possible to follow in time the distribution of these phases. In fact, we deduce the p.d.e's governing the evolution in time of this distribution, which displays a tendency of accumulating around certain of its values (phase-locking), and also of sudden increasing of the intensity of the physical effect (a "phase transition").

The Physical Effect of Reduction on The Hall Effect and Superconducting Properties of Nd2−xCexCuO4−δ

1991 ◽  
pp. 105-108
Author(s):  
N. A. Fortune ◽  
K. Murata ◽  
M. Ishibashi ◽  
Y. Yokoyama ◽  
Y. Nishihara
Keyword(s):  
Hall Effect ◽  
Physical Effect ◽  
Superconducting Properties

Chewing behaviour of hay-fed cows given supplements of whole barley and oat grains

1978 ◽  
Vol 91 (2) ◽  
pp. 415-418 ◽  
Author(s):  
C. A. Morgan ◽  
R. C. Campling
Keyword(s):  
Whole Grains ◽  
Small Extent ◽  
Physical Effect ◽  
Barley Grains ◽  
Chewing Behaviour

SUMMARYFour hay-fed cows were used to study the effects on chewing behaviour of daily supplements of 3 kg whole barley grains, 3 kg whole oat grains or 2·2 kg rolled oats. Both whole grains increased the total time spent chewing by a similar small extent, probably due to a direct physical effect of the grain. The quantity of whole oat grains voided in faeces was lower than that of barley and it is concluded that the quality of chewing is more important than duration in breaking grains and ensuring their subsequent digestion.

Nonlinear, Nonradial Pulsation in Rapidly Oscillating Ap Stars

1993 ◽  
Vol 134 ◽  
pp. 207-214
Author(s):  
D. W. Kurtz
Keyword(s):  
Spherical Harmonics ◽  
Time Scale ◽  
Second Harmonic ◽  
Rotation Frequency ◽  
Physical Effect ◽  
Pulsation Frequency ◽  
Third Harmonic ◽  
Low Degree ◽  
Rotation Phase ◽  
Ap Stars

AbstractThe rapidly oscillating Ap stars pulsate in high-overtone, low degree p-modes with their pulsation axes aligned with their oblique magnetic axes. They show non-linearity in their pulsation in three ways: 1)The harmonics of the basic pulsation frequency are detectable.2)The pulsation phase seems to vary stochastically on a time scale of days to years depending on the star.3)The form of the nonradial surface distortion is not constant with time.These three effects are illustrated with HR 3831, the best studied of the roAp stars. HR 3831 pulsates in distorted dipole mode which can be modelled as a linear sum of axisymmetric l = 0, 1, 2, and 3 spherical harmonics aligned with the magnetic axis. This gives rise to a 7-frequency multiplet split by exactly the rotation frequency. The form of the distortion shows small changes on a time-scale of years. HR 3831 shows a 5-frequency rotationally split first harmonic multiplet, a 3-frequency rotationally split second harmonic multiplet, and a single third harmonic frequency has probably been detected at an amplitude of 0.065 mmag. The first harmonic has changed its form significantly over the last 10 years. A technique for decomposing the fundamental frequency septuplet into its component spherical harmonics is used to fit the pulsation phase as a function of rotation phase. This allows a unique O-C to be defined for any length of light curve. The long term behaviour of the O-C diagram cannot be modelled adequately with a combination of periodic (Doppler shift) and quadratic (evolution) terms; there seems to be a significant stochastic component. The direction of the pulsation phase reversal at rotational phase 0.747 is indeterminate; sometimes it is a positive-going reversal, sometimes negative-going. At present it is not known whether this is a numerical artifact, or a physical effect in the star. If it is a physical effect, it means that small non-periodic differences in pulsation amplitude between the bipolar hemispheres have been detected.

scholarly journals Superimposed disturbance in the ionosphere triggered by spacecraft launches in China

2015 ◽  
Vol 33 (11) ◽  
pp. 1361-1368 ◽  
Author(s):  
L. M. He ◽  
L. X. Wu ◽  
S. J. Liu ◽  
S. N. Liu
Keyword(s):  
Wavelet Analysis ◽  
Physical Effect ◽  
Chemical Effect ◽  
Gps Tracking ◽  
Dual Frequency ◽  
First Time ◽  
Second Period

Abstract. Using GPS dual-frequency observations collected by continuously operating GPS tracking stations in China, superimposed disturbances caused by the integrated action of spacecraft's physical effect and chemical effect on ionosphere during the launches of the spacecrafts Tiangong-1 and Shenzhou-8 in China were firstly determined. The results show that the superimposed disturbance was composed of remarkable ionospheric waves and significant ionospheric depletion emerged after both launches. Meanwhile, we found for the first time that the ionospheric waves were made up of two periods of wave by wavelet analysis. The first period of ∼ 4 min shows one event in the near stations and two sub-events in the few far stations. The second period of ∼ 9 min shows only one event in all the observed stations. Finally, the time characteristics for ionospheric waves and depletions were examined.

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