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Anchor Vertex Selection for Enhanced Reliability of Traffic Offloading Service in Edge-Enabled mobile P2P Social Networks

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Journal of Communications and Information Networks 2020年第2期5卷 217-224页

作者： Hengda Zhang Xiaofei Wang Hao Fan Taotao Cai Jianxin Li Xiuhua Li victor C.m.Leung College of Intelligence and Computing Tianjin UniversityTianjin 300350China School of Information Technology Deakin UniversityMelbourne 3217Australia School of Big Data and Software Engineering Chongqing UniversityChongqing 401331China Department of Electrical and Computer Engineering the University of British ColumbiaVancouverBC V6T 1Z4Canada

As the rapid growth of mobile social networks,mobile peer-to-peer(P2P)communications and mobile edge computing(mEC)have been developed to reduce the traffic load and improve the computation capacity of cellular ***,the stability of social network is largely ignored in the advances of P2P and mEC,which is related to the social relations between *** plays a vital role in improving the efficiency and reliability of traffic offloading *** this paper,we integrate an edge node and the nearby P2P users as a mobile P2P social network and introduce the problem of adaptive anchored(k,r)-core to maintain the stability of multiple mobile P2P *** aims to adaptively select and retain a set of critical users for each network,whose participation is critical to overall stability of the network,and allocate certain resource for them so that the maximum number of users of all networks will remain engaged and the traffic of cellular network can be *** called the retained users as anchor *** address it,we devise a peer-edge-cloud framework to achieve the adaptive allocation of *** also develop a similarity based onion layers anchored(k,r)-core(S-OLAK)algorithm to explore the anchor *** results based on a real large-scale mobile P2P data set demonstrate the effectiveness of our method.

关键词： traffic offloading service mobile P2P communications mobile edge computing anchored k-core problem adaptive allocation

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Systemic analysis of metabolome reconfiguration in Arabidopsis after abiotic stressors uncovers metabolites that modulate defense against pathogens

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Plant Communications 2024年第1期5卷 55-68页

作者： Antoni garcia-molina victoria Pastor Centre for Research in Agricultural Genomics(CRAG)CSIC-IRTA-UAB-UB C/Vall MorontaEdifici CRAG08193 Bellaterra(Cerdanyola del Valles)BarcelonaSpain Department of Biology Biochemistryand Natural SciencesSchool of Technology and Experimental SciencesUniversitat Jaume I12006 Castellode la PlanaSpain

Understanding plant immune responses is complex because of the high interdependence among biological processes in homeostatic ***,the integration of environmental cues causes network rewiring that interferes with defense ***,plants retain molecular signatures configured under abiotic stress periods to rapidly respond to recurrent stress,and these can alter *** changes imposed by abiotic stressors are persistent,although their impact on defense remains to be *** this study,we profiled metabolomes of Arabidopsis plants under several abiotic stress treatments applied individually or simultaneously to capture temporal trajectories in metabolite composition during adverse conditions and *** systemic analysis was performed to address the relevance of me-tabolome changes and extract central features to be tested in *** results demonstrate irreversibility in major fractions of metabolome changes as a general pattern in response to abiotic stress ***-tionalanalysisofmetabolomesandco-abundancenetworkspoints toconvergence inthereconfigurationof organic acid and secondary metabolite *** mutant lines for components related to these metabolic pathways showed altered defense capacities against different ***,our data suggest that sustained metabolome changes configured in adverse environments can act as mod-ulators of immune responses and provide evidence for a new layer of regulation in plant defense.

关键词： abiotic stress Arabidopsis biotic stress combinatorial stress metabolomics systems biology

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How to make Capsules Containing Rejuvenators for Their Use in Asphalt Concrete

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武汉理工大学学报 2010年第17期32卷 18-21,34页

作者： garcia A SCHLANGEN E VAN DE VEN m F C Faculty of Civil Engineering and Geosciences Delft University of TechnologyMICROLAB2628CN DelftThe Netherlands Faculty of Civil Engineering and Geosciences Road and Railway EngineeringDelft University of Technology2628CN DelftThe Netherlands

Rejuvenators are products designed to restore original properties to oxidized asphalt binders by restoring the original ratio of asphaltenes to maltenes. But,for a rejuvenator to be successful,it must penetrate the pavement surface. Besides,application of a rejuvenator will also reduce the skid resistance of the pavement. To solve this,these rejuvenators can be encapsulated and mixed in asphalt concrete. Once the stress in the capsules reaches a certain threshold,the particles break and the rejuvenator is released,giving back the original properties of the pavement. The objective of this paper is to show how these capsules behave and define the most appropriate testing methods to find their effect on asphalt concrete. For this,two different types of rejuvenators will be encapsulated and their effect on the properties of the capsules investigated. Besides,the release mechanisms of the capsules will be unravelled.

关键词： asphalt concrete rejuvenators encapsulation ageing

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How small could a pup sound？ The physical bases of signaling body size in harbor seals

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Current Zoology 2017年第4期63卷 457-465页

作者： Andrea RAVIGNANI Stephanie GROSS maxime garcia Ana RUBIO-garcia Bart DE BOER Veterinary & Research Department Sealcentre Pieterburen Hoofdstraat 94a Pieterburen AG 9968 The Netherlands Artificial Intelligence Laboratory Vrije Universiteit Brussel Pleinlaan 2 Brussels 1050 Belgium Language and Cognition Department Max Planck Institute for Psycholinguistics Wundtlaan 1 Nijmegen XD 6525 The Netherlands Institute for Terrestrial and Aquatic Wildlife Research University of Veterinary Medicine Hannover Foundation Werftstrasse 6 Buesum 25761 Germany ENES Lab/Neuro-PSI CNRS UMR9197 University of Lyon/Saint Etienne 23 rue Paul Michelon 42023 Saint-Etienne cedex 2 France

Vocal communication is a crucial aspect of animal behavior. The mechanism which most mam- mals use to vocalize relies on three anatomical components. First, air overpressure is generated in- side the lower vocal tract. Second, as the airstream goes through the glottis, sound is produced via vocal fold vibration. Third, this sound is further filtered by the geometry and length of the upper vocal tract. Evidence from mammalian anatomy and bioacoustics suggests that some of these three components may covary with an animal＇s body size. The framework provided by acoustic al- Iometry suggests that, because vocal tract length （VTL） is more strongly constrained by the growth of the body than vocal fold length （VFL）, VTL generates more reliable acoustic cues to an animal＇s size. This hypothesis is often tested acoustically but rarely anatomically, especially in pinnipeds. Here, we test the anatomical bases of the acoustic allometry hypothesis in harbor seal pups Phoca vitulina. We dissected and measured vocal tract, vocal folds, and other anatomical features of 15 harbor seals post-mortem. We found that, while VTL correlates with body size, VFL does not. This suggests that, while body growth puts anatomical constraints on how vocalizations are filtered by harbor seals＇ vocal tract, no such constraints appear to exist on vocal folds, at least during puppy- hood. It is particularly interesting to find anatomical constraints on harbor seals＇ vocal tracts, the same anatomical region partially enabling pups to produce individually distinctive vocalizations.

关键词： acoustic allometry honest signaling larynx pinniped vocal tract.

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Calcium-signaling proteins mediate the plant transcriptomic response during a well-established Xanthomonas campestris *** infection

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Horticulture Research 2019年第1期6卷 422-431页

作者： maria Tortosa maria E.Cartea Pablo Velasco Pilar Soengas victor m.Rodriguez Group of Genetics Breeding and Biochemistry of BrassicasMisión Biológica de GaliciaSpanish Council for Scientific Research(CSIC)PO Box 28 E-36080 PontevedraSpain

The plant immune system is divided into two branches;one branch is based on the recognition of pathogenassociated molecular patterns(PAmP-triggered immunity),and the other relies on pathogenic effector detection(effector-triggered immunity).Despite each branch being involved in different complex mechanisms,both lead to transcription reprogramming and,thus,changes in plant *** study the defense mechanisms involved in the Brassica oleracea–Xanthomonas campestris ***(Xcc)interaction,we analyzed the plant transcriptome dynamics at 3 and 12 days postinoculation(dpi)by using massive analysis of 3′-cDNA *** identified more induced than repressed transcripts at both 3 and 12 dpi,although the response was greater at 12 *** in the expression of genes related to the early infection stages were only detected at 12 dpi,suggesting that the timing of triggered defenses is crucial to plant *** analyses in susceptible and resistant plants allowed us to highlight the potential role of two calcium-signaling proteins,CBP60g and SARD1,in the resistance against *** role was subsequently confirmed using Arabidopsis knockout mutants.

关键词： branch immunity campestris

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Tree phenology along a successional gradient of tropical Atlantic Forest

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Journal of Plant Ecology 2019年第2期12卷 272-280页

作者： Fernanda C.G.Cardoso victor P.Zwiener marcia C.m.marques Laboratório de Ecologia Vegetal Departamento de BotânicaSetor de Ciências BiológicasUniversidade Federal do ParanáCaixa Postal 1903181531-980CuritibaPRBrazil

Aims Changes in habitat characteristics and species composition in suc-cessional gradients could determine temporal variation in phenol-ogy of second-growth *** evaluated phenological patterns in tree species occurring in successional forests in southern Brazil,aiming to assess community changes along *** tested for general patterns and phenophase seasonality of trees of forests in successional stages and for differences in occurrence,concentra-tion,frequency and duration of *** Vegetative(flushing and leaf-fall)and reproductive(flowering and fruiting)phenophases of 149 individuals of 29 tree species were monitored monthly,for 2 years,in a successional gradient:early-(~10 years),mid-(~30 years)and late-successional(>80 years)forests in southern *** Findings Forests in the successional gradient exhibited shared frequency and duration of phenological phases,probably due to climatic or historical constraints in ***,we found differences in the rate of occurrence and concentration of phenological phases,suggesting that habitat changes caused by succession and species turnover are additional factors affecting phenological patterns in tropical forests.

关键词： Brazil circular analysis phenological patterns succession

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Soil fertilization does not alter plant architectural effects on arthropod communities

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Journal of Plant Ecology 2017年第5期10卷 800-807页

作者： m.Noelia Barrios-garcia mariano A.Rodriguez-Cabal Jennifer A.Rudgers Gregory m.Crutsinger CONICET CENAC-APNFagnano 244BarilocheRio Negro CP.8400Argentina Grupo de Ecología de Invasiones INIBIOMA-CONICETUniversidad Nacional del ComahueAv.de los Pioneros 2350BarilocheRio Negro CP.8400Argentina Department of Biology University of New MexicoCastetter Hall 286AlbuquerqueNM 87131USA Department of Zoology University of British Columbia#4200-6270 University Blvd.VancouverBritish Columbia V6T 1Z4Canada

Aims While a growing number of studies have demonstrated the impor-tance of intraspecific differences within plant species on associ-ated arthropod communities,little is known regarding the relative strength of these effects compared to environmental *** this study,we examined whether intraspecific plant differences and nutrient fertilization interact to shape the arthropod community of a dominant coastal shrub,Baccharis pilularis(coyote bush).methods We overlaid a fertilization treatment on a 12-year-old common garden experiment planted with erect and prostrate architectural morphs of Baccharis in california,*** collect the associated arthropod community,we vacuum sampled the crown of each Baccharis and identified individuals to species or *** Findings We found that arthropod richness and abundance were 2-to 3-fold greater on prostrate Baccharis than on erect morphs,but observed no main effects of fertilizer addition on the over-all arthropod *** responded as strongly as herbivores to plant morph,and both were unaffected by nutrient *** the specialist stem galler,Gnorimoschema bac-charisella,showed an interactive response to plant morph and ***,phosphorous and potassium addition had opposite effects on the two morphs,increasing stem gall abun-dance by 50%on prostrate morphs,but reducing galling by 20%on erect *** architectural complexity of prostrate morphs could be the driving mechanism of differences in arthropod ***,our results demonstrate that communitylevel consequences of intraspecific differences in plants are strong,rather than being context dependent,and are generally maintained under different resource *** growing number of studies showing strong genotype than nutrient effects on associated arthropod communities suggests that this might be a generalized pattern.

关键词： Baccharis pilularis community genetics G×E interactions galling insects nutrient fertilization

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Wettability of silicon carbide ceramic by Al_2O_3/Dy_2O_3 and Al_2O_3/Yb_2O_3 systems

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Journal of Rare Earths 2013年第6期31卷 634-638页

作者： J.A.da Silva B.m.moreschi G.C.R.garcia S.Ribeiro Department of materials Engineering (DEmAR) Engineering School of Lorena (EEL)Pólo Urbo IndustrialGleba AI6CP 11612608-970LorenaSPBrazil

Wettability is an important phenomenon in the liquid phase sintering of silicon carbide （SiC） ceramics. This work involved a study of the wetting of SiC ceramics by two oxide systems, Al2O3 /Dy2O3 and Al2O3 /Yb2O3, which have so far not been studied for application in the sintering of SiC ceramics. Five mixtures of each system were prepared, with different compositions close to their respective eutectic ones. Samples of the mixtures were pressed into cylindrical specimens, which were placed on a SiC plate and subjected to temperatures above their melting points using a graphite resistance furnace. The behavior of the melted mixtures on the SiC plate was observed by means of an imaging system using a CCD camera and the sessile drop method was employed to determine the contact angle, the parameter that measures the degree of wettability. The results of variation in the contact angle as a function of temperature were plotted in graphic form which showed that the curves displayed a fast decline and good spreading. All the samples of the two systems presented final contact angles of 40o to 10o indicating their good wetting on SiC in the argon atmosphere. The melted/solidified area and interface between SiC and melted/solidified phase were evaluated by scanning electron microscopy （SEm） and their crystalline phases were identified by X-ray diffraction （DRX）. The DRX analysis showed that Al2O3 and RE2O3 reacted and formed the Dy3Al5O12 （DyAg） and Yb3Al5O12 （YbAg） phases. The results indicated that the two systems had a promising potential as additives for the sintering of SiC ceramics.

关键词： liquid-phase sintering silicon carbide rare earth oxide wettability contact angle

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Free-standing microscale photonic lantern spatial mode(De-)multiplexer fabricated using 3D nanoprinting

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Light(Science & Applications) 2024年第6期13卷 1170-1185页

作者： Yoav Dana Yehudit garcia Aleksei Kukin Lauren Dallachiesa Sterenn Guerrier Nicolas K.Fontaine Dan m.marom Institute of Applied Physics Hebrew University of JerusalemJerusalemIsrael Nokia Bell Labs 600 Mountain AveNew ProvidenceNJ07974USA

Photonic lantern(PL)spatial multiplexers show great promise for a range of applications,such as future high-capacity mode division multiplexing(mDm)optical communication networks and free-space optical *** enable efficient conversion between multiple single-mode(Sm)sources and a multimode(mm)waveguide of the same *** multiplexers operate by facilitating adiabatic transitions between the Sm arrayed space and the single mm ***,current fabrication methods are forcing the size of these devices to multi-millimeters,making integration with micro-scale photonic systems quite *** advent of 3D micro and nano printing techniques enables the fabrication of freestanding photonic structures with a high refractive index contrast(photopolymer-air).In this work we present the design,fabrication,and characterization of a 6-mode mixing,375µm long PL that enables the conversion between six single-mode inputs and a single six-mode *** PL was designed using a genetic algorithm based inverse design approach and fabricated directly on a 7-core fiber using a commercial two-photon polymerization-based 3D printer and a *** the waveguides exhibit high index contrast,low insertion loss(−2.6 dB),polarization dependent(−0.2 dB)and mode dependent loss(−4.4 dB)were measured.

关键词： mode enable printing

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Electro-acupuncture to prevent prolonged postoperative ileus:A randomized clinical trial

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World Journal of Gastroenterology 2010年第1期16卷 104-111页

作者： m Kay garcia Joseph S Chiang Bob Thornton J Lynn Palmer Jennifer mcQuade Lorenzo Cohen Department of Anesthesiology and Pain medicine/Integrative medicine M.D.Anderson Cancer CenterThe University of Texas Department of Anesthesiology and Pain medicine M.D.Anderson Cancer CenterThe University of Texas Department of Palliative Care and Rehabilitation medicine M.D.Anderson Cancer CenterThe University of Texas Department of Behavioral Science M.D.Anderson Cancer CenterThe University of Texas Department of GI medical Oncology M.D. Anderson Cancer CenterThe University of Texas

AIm:To examine whether acupuncture can prevent prolonged postoperative ileus(PPOI)after intraperitoneal surgery for colon cancer. mETHODS:Ninety patients were recruited from the Fudan University Cancer Hospital,Shanghai,China. After surgery,patients were randomized to receive acupuncture(once daily,starting on postoperative day 1, for up to six consecutive days)or usual *** was defined as an inability to pass flatus or have a bowel movement by 96 h after *** main outcomes were time to first flatus,time to first bowel movement, and *** outcomes were quality of life(QOL)measures,including pain, nausea,insomnia,abdominal distension/fullness,and sense of well-being. RESULTS:No significant differences in PPOI on day 4 (P=0.71)or QOL measures were found between the *** were also no group differences when the data were analyzed by examining those whose PPOI had resolved by day 5(P=0.69)or day 6(P= 0.88).No adverse events related to acupuncture were reported. CONCLUSION:Acupuncture did not prevent PPOI andwas not useful for treating PPOI once it had developed in this population.

关键词： Acupuncture Gastrointestinal motility Gastrointestinal disorders Gastrointestinal neoplasms

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