Results 161 to 170 of about 325,248 (362)
OFDM system energy efficiency increasing method based on peak-factor decrease
Физика волновых процессов и радиотехнические системы, 2018 In this work the peak-factor decreasing method for the OFDM systems is proposed, based on the group spectrum subcarriers processing and the signal constellation rotation.
A.Kh. Sultanov +2 more
doaj
Preschoolers’ Sensitivity to Abstract Relations Among Sets
Topics in Cognitive Science, EarlyView.Abstract In two studies, we test preschoolers’ ability to compare abstract relationships across sets. In Experiments 1a−1d, we show that both older (4‐ and 5‐year‐olds) and younger (3‐year‐olds) preschoolers successfully match both monotonic and symmetric relationships in visual patterns and succeed both in direct relational matches and inverted ones ...
Nicole H. Coates +2 more
wiley +1 more source
Sum-rate maximisation comparison using incremental approaches with different constraints [PDF]
, 2009 In this work, the problem of rate maximisation of multichannel systems is considered. Two greedy allocation approaches using power (GPA) and bit (GBA) loading schemes with a slight difference in design constraints that aiming to maximise the overall ...
Al-Hanafy, Waleed, Weiss, S.
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Prevalence of Antimicrobial Use in Small Animal Dermatology Referral Practices in the United States
Veterinary Dermatology, EarlyView.ABSTRACT Background Antimicrobial resistance is a critical global health concern driven by antimicrobial use. Dermatological conditions are common reasons for antimicrobial prescriptions in small animal practice, yet data on prescribing patterns in veterinary dermatology referral settings are lacking. Hypothesis/Objectives To characterise the frequency,
Domenico Santoro +2 more
wiley +1 more source
Gedächtnissrede auf Wilhelm Scherer ... [PDF]
, 1887 Aus den Abhandlungen der Königl. preuss. akademie der wissenschaften zu Ber.
Schmidt, Johannes.
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Open EngineeringThis paper presents an enhanced framework for peak-to-average power ratio (PAPR) reduction in non-orthogonal multiple access (NOMA) systems using modified Selective Mapping (m-SLM) and Partial Transmit Sequence (m-PTS) algorithms.
Kumar Arun +2 more
doaj +1 more source
Experimental Physiology, EarlyView.Abstract Sympathetic nervous system activation is a hallmark of high‐altitude hypoxia, yet the afferent mechanisms remain incompletely defined. We examined the relative contributions of pulmonary arterial mechanoreceptors and carotid chemoreceptors – two excitatory pathways co‐activated by hypoxia – to sustained sympathoexcitation at altitude.
Michiel T. Ewalts +13 more
wiley +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend Blebbistatin reduces Ca2+ buffering in induced pluripotent stem cell‐derived atrial cardiomyocytes. Blebbistatin, a widely used excitation–contraction uncoupling agent, decreases calcium (Ca2+) buffer affinity (increased buffer dissociation constant), leading to elevated diastolic Ca2+ levels, increased sarcoplasmic reticulum Ca2+
Izzatullo Sobitov +8 more
wiley +1 more source
Optimum Mode-Switching Assisted Adaptive Modulation [PDF]
, 2001 Adaptive modulation techniques combat fading by employing a suitable modulation mode depending on the instantaneous channel conditions for improving the Bit Error Rate (BER) performance or the average through-put.
Choi, B.J., Hanzo, L.
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