Results 21 to 30 of about 1,605,056 (288)
Transposable elements drive intron gain in diverse eukaryotes
Proceedings of the National Academy of Sciences, 2022 AbstractThere is massive variation in intron numbers across eukaryotic genomes, yet the major drivers of intron content during evolution remain elusive. Rapid intron loss and gain in some lineages contrasts with long term evolutionary stasis in others.
Landen Gozashti +5 more
openaire +4 more sources
Diverse Women's Beliefs About Weight Gain in Pregnancy [PDF]
Journal of Midwifery & Women's Health, 2009 This research was conducted to describe ethnically diverse new mothers' perceptions of gestational weight gain. Forty‐nine low‐income women of diverse racial and ethnic origins who birthed an infant within the past year completed a semistructured interview in a pediatric clinic waiting room.
Susan W, Groth, Margaret H, Kearney
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Performance of two branch space and polarization diversity at 900 MHz [PDF]
, 1997 This work summarizes the results of a measurement campaign undertaken to evaluate the performance of two branch space and polarization diversity schemes at 900 MHz in different environments (urban, suburban, rural flat and rural hilly). A total number of
RODRIGUEZ, J +2 more
core +1 more source
Virtual-Link Relay Selection Scheme for Buffer-Aided IoT Based Cooperative Relay Networks
IEEE Access, 2018 This paper investigates the performance of a buffer-aided cooperative relay network. In the proposed design, each location in a buffer is assumed to act independently called the virtual relay having a buffer of size 1. The relay selection is based on the
Hina Nasir +5 more
doaj +1 more source
Diversity gain region for MIMO fading broadcast channels [PDF]
Manufacturing Engineer, 2005 In this work, we introduce the notion of the diversity gain region for a multiuser channel. This region specifies the set of diversity-gain vectors that are simultaneously achievable by all users in the multiuser channel. This is done by associating different probabilities of error for different users, contrary to the traditional approach where a ...
Lihua Weng +2 more
openaire +1 more source
Analysis of cyclic delay diversity on DVB-H systems over spatially correlated channel [PDF]
, 2007 The objective of this work is to research and analyze the performance of Cyclic Delay Diversity (CDD) with two transmit antenna on DVB-H systems operating in spatially correlated channel. It is shown in this paper that CDD can achieve desirable transmit
Bard, M +4 more
core +1 more source
Measured Diversity Gains from MIMO Antenna Selection [PDF]
IEEE Vehicular Technology Conference, 2006 We investigate the diversity gain of MIMO systems with antenna selection in measured propagation channels for wireless personal area networks. We measure both the communication from an access point to a laptop, and between two handheld devices. Both the transmitter and receiver use antenna selection for diversity transmission and reception. We consider
Almers, Peter +5 more
openaire +3 more sources
Frequency Diversity Gain of a Wideband Radar Signal
Remote Sensing, 2021 Wideband radar has high-range directional resolution, which can effectively reduce the fluctuation of echo and improve the detection probability of a target under the same detection probability requirement.
Mengmeng Shen +5 more
doaj +1 more source
On the MIMO Channel Capacity of Multi-Dimensional Signal Sets
, 2006 In this contribution we evaluate the capacity of Multi-Input Multi-Output (MIMO) systems using multi-dimensional PSK/QAM signal sets. It was shown that transmit diversity is capable of narrowing the gap between the capacity of the Rayleigh-fading channel
Hanzo, L., Ng, S. X.
core +2 more sources
Buffer-Aided Successive Relay Selection Scheme for Energy Harvesting IoT Networks
IEEE Access, 2019 In this paper, we analyze the impact of buffer-aided full-duplex successive relay selection schemes with energy harvesting capability of relay nodes in amplifying and forward (AF) and decode and forward (DF) relaying environments for the Internet of ...
Ghulam Shabbir +6 more
doaj +1 more source