Results 11 to 20 of about 4,724,423 (285)
Spectrum utilization using game theory [PDF]
This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.Spectrum utilization is the most recent communications issue which takes great deal of attention from communication researchers where most of the efforts ...
Al-Banna, Zaineb
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The characteristics of continuous gravity changes in Qiongzhong seismic station
This paper collected the continuous gravity observation data from Qiongzhong seismic station since 2009. After processing the raw data with sudden jumps,steps and error data,we calculated and analyzed the characteristics of the gravity tide data from ...
Jialin Wu +5 more
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Modelling and Study of the Effect of Geometrical Parameters of Piezoelectric Plate and Stack
The piezoelectric stack is employed as an actuator and a sensor in a variety of technical applications. The dynamic modelling of piezoelectric plates and stack is used to investigate and search for new applications in mechatronics systems that are based ...
Tolera G. Degefa +2 more
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The Application of Frequency Offset Advantage (FOA) in Frequency Coordination
International Telemetering Conference Proceedings / November 19-21, 1979 / Town and Country Hotel, San Diego, CaliforniaA major telecommunications growth area at this time is narrowband digital transmissions via satellites.
Raghavan, Srini, Armes, Jerry
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Hawking spectrum and high frequency dispersion [PDF]
We study the spectrum of created particles in two-dimensional black hole geometries for a linear, hermitian scalar field satisfying a Lorentz non-invariant field equation with higher spatial derivative terms that are suppressed by powers of a fundamental momentum scale $k_0$. The preferred frame is the ``free-fall frame" of the black hole.
Corley, S., Jacobson, T.
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Acoustic frequency spectrum characteristics in periodic drill string under tension
It is a promising measure to transmit downhole information by acoustic wave through drill string. However, the transmission distance and quality of acoustic signals in field conditions are still not satisfied because the acoustic frequency spectrum in ...
Qing Wang, Zhichuan Guan, Yongwang Liu
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The Site Frequency Spectrum for General Coalescents [PDF]
Abstract General genealogical processes such as Λ- and Ξ-coalescents, which respectively model multiple and simultaneous mergers, have important applications in studying marine species, strong positive selection, recurrent selective sweeps, strong bottlenecks, large sample sizes, and so on.
Spence, Jeffrey P +2 more
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Is re-farming the answer to the spectrum shortage conundrum? [PDF]
Radio spectrum has become one of the engines of economic growth. However, rapid technological change, ever increasing demands for new wireless services and the nature of spectrum as a scarce resource necessitate an urgent re-examination of issues such as
Curwen, Peter +2 more
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Woodwork is one of the occupations with high levels of noises. This pilot study attempted to simulate woodworkers’ occupational noise exposure by integrating frequency spectra measured from individual power tools with the respective time of tool use ...
Yu-Ping Zheng +2 more
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Editorial Note: Impact of COVID-19 on Spectrum operations
To support our authors, reviewers and editors during the COVID-19 pandemic, the Spectrum Editorial Board has relaxed its timelines for the publication of this most recent issue (Issue 5). We are working with our authors on their Issue 5 submissions,
Editorial Board, Spectrum
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