Results 31 to 40 of about 792,957 (313)
The Site-Frequency Spectrum of Linked Sites [PDF]
Bulletin of Mathematical Biology, 2010 The site-frequency spectrum, representing the distribution of allele frequencies at a set of polymorphic sites, is a commonly used summary statistic in population genetics. Explicit forms of the spectrum are known for both models with and without selection if independence among sites is assumed.
openaire +2 more sources
Frequency-swapping aided femtocells in twin-layer cellular networks relying on fractional frequency reuse [PDF]
, 2012 Femtocells constitute an economical solution conceived for improving the indoor coverage, which are capable of achieving a high network capacity. In order to guarantee a high Area Spectral Efficiency (ASE), femtocells have to reuse the spectrum of ...
Jin, Fan +5 more
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The second spectrum of Timoshenko beam theory - Further assessment [PDF]
, 2006 A review of contributions and views on the second spectrum of Timoshenko beam theory (TBT) over the past two decades, together with some new results, are presented.
Stephen, N.G.
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Analysis of acoustic wave transmission characteristics in underground coal mine drill pipe
Meikuang AnquanThe acoustic wave transmission of MWD data is an important means to realize the high-speed and accurate transmission of borehole data in coal mine, which is conducive to changing the situation that most of the underground gas extraction in coal mine is ...
Xining REN, Jun GAO, Jia ZHANG
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A Hybrid Approach for Identification of Manhole and Staircase to Assist Visually Challenged
IEEE Access, 2018 Recognition of an object is a bare minimum restraint for an individual in order to sort out or classify the type of the object. This situation becomes a tricky experience with respect to the blind persons; therefore, to assist visually challenged persons,
Sreenu Ponnada +2 more
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Acoustic frequency spectrum characteristics in periodic drill string under tension
Energy Science & Engineering, 2020 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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Radar spectrum opportunities for cognitive communications transmission [PDF]
, 2008 In relation to opportunistic access to radar spectrum, the impact of the radar on a communication system is investigated in this paper. This paper illustrates that by exploring the spatial and temporal opportunities in the radar spectrum and therefore ...
Williams, C +7 more
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Frequency Spectrum Adaptor for Remote Sensing Image–Text Retrieval
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingRemote sensing image–text retrieval (RSITR) is a critical task that involves parsing the content of remote sensing (RS) images to match semantically relevant text.
Ziyi Wan +6 more
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IEEE AccessAn accurate model is needed to simulate the electromagnetic fields induced by short-period ocean waves to study the influence of the induced fields on the data set of marine magnetotelluric (mMT), marine controlled source electromagnetic (mCSEM), and ...
Ronghua Tao +3 more
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Automatika, 2023 Monitoring a person’s physical activity has a wide range of applications in both sports and medicine. With the advancement of technology for measuring human movement, it is possible to monitor the performed activity without a need for an expert to ...
D. Džaja +3 more
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