Results 71 to 80 of about 7,200,285 (346)

Research on the scheme for electrical vehicle aggregators participating in the frequency modulation auxiliary service market

open access: yesZhejiang dianli, 2023
A great number of electric vehicle (EV) charging piles can participate in the electricity spot market and auxiliary service market through load aggregation to comprehensively optimize operating costs.
LUAN Jie   +6 more
doaj   +1 more source

Volitional exaggeration of body size through fundamental and formant frequency modulation in humans

open access: yesScientific Reports, 2016
Several mammalian species scale their voice fundamental frequency (F0) and formant frequencies in competitive and mating contexts, reducing vocal tract and laryngeal allometry thereby exaggerating apparent body size.
K. Pisanski   +6 more
semanticscholar   +1 more source

Extracting a shape function for a signal with intra-wave frequency modulation [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
In this paper, we develop an effective and robust adaptive time-frequency analysis method for signals with intra-wave frequency modulation. To handle this kind of signals effectively, we generalize our data-driven time-frequency analysis by using a shape
T. Hou, Zuoqiang Shi
semanticscholar   +1 more source

Optimum predetection diversity receiving system Patent [PDF]

open access: yes, 1967
Development of optimum pre-detection diversity combining receiving system adapted for use with amplitude modulation, phase modulation, and frequency modulation ...
Honey, R. W., Katz, L., Simas, V. R.
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Loss of superfluidity in a Bose-Einstein condensate via forced resonant oscillations

open access: yes, 2003
We predict the loss of superfluidity in a Bose-Einstein condensate in an axially symmetric harmonic trap alone during resonant collective oscillations via a classical dynamical transition.
Abdullaev   +29 more
core   +1 more source

Association of molecules using a resonantly modulated magnetic field [PDF]

open access: yes, 2006
We study the process of associating molecules from atomic gases using a magnetic field modulation that is resonant with the molecular binding energy. We show that maximal conversion is obtained by optimising the amplitude and frequency of the modulation ...
J. R. Taylor   +4 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Quantum systems under frequency modulation [PDF]

open access: yesReports on progress in physics. Physical Society, 2015
We review the physical phenomena that arise when quantum mechanical energy levels are modulated in time. The dynamics resulting from changes in the transition frequency is a problem studied since the early days of quantum mechanics.
M. Silveri   +5 more
semanticscholar   +1 more source

Temporal Modulation of the Control Parameter in Electroconvection in the Nematic Liquid Crystal I52

open access: yes, 2000
I report on the effects of a periodic modulation of the control parameter on electroconvection in the nematic liquid crystal I52. Without modulation, the primary bifurcation from the uniform state is a direct transition to a state of spatiotemporal chaos.
D. Walgraef   +24 more
core   +1 more source

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