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| 1 | Ambient Backscatter Communications over NOMA Downlink Channels显示文摘In this paper,we investigate the performance of commensal ambient backscatter communications(AmBC)that ride on a non-ortho go nal multiple access(NOMA)downlink transmission,in which a backscatter device(BD)splits part of its received signals from the base station(BS)for energy harvesting,and backscatters the remaining received signals to transmit information to a cellular user.Specifically,under the power consumption constraint at BD and the peak transmit power constraint at BS,we derive the optimal reflection coefficient at BD,the optimal total transmit power at BS,and the optimal power allocation at BS for each transmission block to maximize the ergodic capacity of the ambient backscatter transmission on the premise of preserving the outage performance of the NOMA downlink transmission.Furthermore,we consider a scenario where the BS is restricted by a maximum allowed average transmit power and the reflection coefficient at BD is fixed due to BD’s low-complexity nature.An algorithm is developed to determine the optimal total transmit power and power allocation at BS for this scenario.Also,a low-complexity algorithm is proposed for this scenario to reduce the computational complexity and the signaling overheads.Finally,the performance of the derived solutions are studied and compared via numerical simulations. | Weiyu Chen Haiyang Ding Shilian Wang Daniel Benevides daCosta Fengkui Gong Pedro Henrique Juliano Nardelli | 2020 | China Communications2020，17，6： | 4 |
| 2 | Energetic-protein supplementation in the last 60 days of gestation improves performance of beef cows grazing tropical pastures显示文摘Background: Nutrition is one of the most important factors that affect animal performance, and it therefore also impacts on financial results in beef systems. In this way, finding the best strategy for feeding supplements is of paramount importance. Aiming to evaluate the effect of supplement feeding strategies for beef cows in the last third of gestation, two experiments were conducted. In Experiment 1, 35 pregnant Nellore cows were assigned to a completely randomized design with four treatments: control, which received no supplement; supplementation for the last 30 d of gestation(30-d; 3.0 kg/d); supplementation for the last 60 d of gestation(60-d; 1.5 kg/d); or supplementation for the last 90 d of gestation(90-d; 1.0 kg/d). All supplemented treatments received the same total amount of supplement throughout the experiment: 90 kg(20% of crude protein). A second experiment(Experiment 2) was delineated to evaluate the effects of the amounts offered in Experiment 1 on intake and metabolism. Four multiparous pregnant Nellore cows were assigned to a 4 × 4 Latin square design, with periods of15 d each.Results: There was a linear effect of the number of days of supplementation on calving body weight(BW; P < 0.05)and a quadratic effect on BW change from parturition to d 31 post-calving(P < 0.05), with cows on the 60-d strategy losing less BW post-calving. No difference was found in offspring birth BW(P > 0.10). A significant linear effect on interval from parturition to conception(P < 0.05) was observed, with the highest calving to conception interval being observed in the 90-d strategy. The level of supplementation did not affect forage intake or neutral detergent fiber digestibility(P > 0.10). Nitrogen excreted through urine tended to increase linearly with the level of supplementation(P < 0.10).Conclusion: Providing 1.5 kg of supplement during the last 60 d of gestation improves cow performance after calving, reducing the magnitude of BW lost, and reduces the number of days from calving to re-conception in the following breeding season compared to the usually recommended period of supplementation of 90 d pre-partum. | Aline Gomes da Silva Mário Fonseca Paulino Edenio Detmann Henrique Jorge Fernandes Lincoln da Silva Amorim Román Enrique Maza Ortega Victor Valério de Carvalho Josilaine Aparecida da Costa Lima Felipe Henrique de Moura Mariana Benevides Monteiro Jéssika Almeida Bitencourt | 2018 | Journal of Animal Science and Biotechnology2018，9，1： | 2 |
| 3 | Develop- ment and evaluation of an edible antimicrobial film based on yam starch and chitosan 显示文摘 | Durango A M Soares N F Benevides S | 2006 | Packaging Technology and Science2006，19，1： | 1 |
| 4 | Phenylpropanoids and neolignans from Piper regnellii 显示文摘 | Benevides PJ C Sartorelli P Kato M J | 1999 | Phytochem1999，52，2： | 1 |
| 5 | Cognitive Amplify-and-forward Relaying with Best Relay Selection in Non-identical Rayleigh Fading显示文摘 | Bao V N Q Duong T Q Benevides da Costa D | 2013 | IEEE Communications Letters2013，17，3： | 1 |
| 6 | Phenylpropanoids and neolignans from Piper regnellii显示文摘 | Paulo J C Benevides Patricia S Massuo J K | 1999 | Phytochemistry1999，52，： | 1 |
| 7 | Building reliable Web services compositions显示文摘 | PIRES P F BENEVIDES M R F MATTOSO M | 2003 | Lecture Notes in Computer Science2003，2593，： | 1 |
| 8 | Antimierobial resistance and genetic diversity of Escherichia coli isolated from humans and foods 显示文摘 | Daniela Benevides Mdo Aria Paula de Oliveira Menezes Joice Neves Reis | 2015 | Brazilian Journal of Microbiology2015，46，4： | 1 |
| 9 | Enrich- ment of regulatory T cells in invasive breast tumor corre- lates with the upregulation of IL-17A expression and in- vasiveness of the tumor显示文摘 | Benevides L Cardoso C R Tiezzi D G | 2013 | Eur J Immunol2013，43，6： | 1 |
| 10 | Dependence of the raman signature of genomic B-DNA on nucleotide base sequence 显示文摘 | Deng H Bloomfield V A Benevides J M | 1999 | Biopolymers(S1097-0282)1999，50，6： | 1 |
| 11 | Characterization of DNA Structure by Raman-Spectroscopy-High Salt and Low-Salt Forms of Double Helical Poly(Dg-Dc) in H2O and D2O Solutions and Application to B- DNA,Z-DNA and A-DNA 显示文摘 | Benevides J M Thomas G J | 1983 | Nucleic Acids Research(S0305-1048)1983，11，16： | 1 |
| 12 | Structure basis of polyamine-DNA recognition: spermidine and spermine interactions with genomic B-DNAs of different GC content probed by Raman spectroscopy 显示文摘 | Deng H Bloomfield V A Benevides J M | 2000 | Nucleic Acids Research (S0305-1048)2000，28，17： | 1 |
| 13 | Increasing the bind ingstrength of proteins to PEI coated supports by immobilizing at high ionic strength 显示文摘 | Benevides C C Lorena B Fernando L G | 2005 | Enzyme and Microbial Technology2005，37，8： | 1 |
| 14 | Multiuser detection for uplink DS-CDMA amplify-and- forward relaying systems显示文摘 | de Almeida A L F Fernandes C A R Benevides da Costa D | 2013 | IEEE Signal Processing Letters2013，20，7： | 1 |
| 15 | Toxoplasma gondii soluble tachyzoite antigen triggers protective mechanisms against fatal intestinal pathology in oral Infection of C57BIJ6 mice 显示文摘 | Benevides L Cardoso CR Milanezi CM | 2013 | PLoS One2013，8，75： | 1 |
| 16 | Antihyperalgesic effect of pentoxifylline on experimental inflammatory pain 显示文摘 | Vale ML Benevides VM Sache D | 2004 | Br J Pharmacology2004，143，7： | 1 |
| 17 | Domain Structures and Roles in Bacteriophage HK97 Capsid Assembly and Maturation显示文摘 | BENEVIDES J M BONDRE P THOMAS G J | 2004 | Biochemistry2004，43，18： | 1 |
| 18 | Effect of gallium-arsenide laser,gallium-aluminum-arsenide laser and healing ointment on cutaneous wound healing in Wistar rats显示文摘 | Goncalves RV Mezencio JMS Benevides GP | 2010 | Brazilian Journal of Medical and Biological Research2010，43，4： | 1 |
| 19 | Enrichment of regulatory r ceils in invasive breast tumor correlates with the upregulation of IL 17A expression and invasiveness of the tumor显示文摘 | Benevides L Oardoso CFL Tiezzi OG et aI | 2015 | Eur J Immunol2015，45，6： | 1 |
| 20 | Development and Evaluation of an Edible Antimierobial Film Based on Yam Starch and Chitosan 显示文摘 | DURANGO A M SOARES N F F BENEVIDES S | 2006 | Paekag Technol Sci2006，19，： | 1 |
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