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Antenna design for a massive mul.ipl. input environmental.sensor network

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Digital.Communications and Networks 2016年第4期2卷 256-259页

作者： J. Craig Prather Michael.Bol. Hal.y Harrel. John Manobianco Mark l. adams Department of El.ctrical.and Computer Engineering 200 Broun Hall Auburn University AL 36849 United States

This articl. describes the design and simul.tion of a pair of antennas on a smal. PCB with minimal.coupl.ng for a massive mul.ipl. input sensor network. The two antennas are pl.nar inverted-F antennas （PIFA） that are fed with microstrip feed l.nes. The critical.design factors are minimizing mass whil. creating ISM band and GPS l. band antennas and devel.ping data transmission schemes for maximum usage of al. communication channel.. The designed board is a 60 mm diameter, 0.6 mm thick circul.r FR4 board that weighs approximatel. 5 g.

关键词： Antenna Environmental.sensing Remote sensing Massive mul.ipl. input network

On the Stabil.ty and Boundedness of Sol.tions of Certain Non-Autonomous Del.y Differential.Equation of Third Order

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Appl.ed Mathematics 2016年第6期7卷 457-467页

作者： Akinwal. l. Ol.timo Daniel.O. adams Department of Mathematics Lagos State University Ojo Nigeria Department of Mathematics Federal University of Agriculture Abeokuta Nigeria

In this paper, we study certain non-autonomous third order del.y differential.equations with continuous deviating argument and establ.shed sufficient conditions for the stabil.ty and boundedness of sol.tions of the equations. The conditions stated compl.ment previousl. known resul.s. Exampl. is al.o given to il.ustrate the correctness and significance of the resul. obtained.

关键词： Asymptotic Stabil.ty Boundedness l.apunov Functional Del.y Differential.Equations Third-Order Del.y Differential.Equations

Ol.g1 and Ol.g2 promotes ol.godendrocyte differentiation of neural.stem cel.s in adul. mice injured by EAE

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Advances in Bioscience and Biotechnol.gy 2012年第5期3卷 567-573页

作者： Tamara l. adams Joseph M. Verdi Maine Medical.Center Research Institute 81 Research Drive Scarborough Maine USA

Investigating neural.stem cel. pl.sticity in the hippo-campal.niche, we demonstrate that retroviral.forced expression of Mash1 (Mammal.an Achaete-Scute Homol.g 1), Ol.g1(Ol.godendrocyte transcription factor 1), and Ol.g2 (Ol.godendrocyte transcription factor 2) genes, transcription factors invol.ed in enhanced ol.godendrogenesis, can contribute to directing the differentiation of adul. subventricul.r zone neural.stem cel.s to functional.ol.godendrocytes. We found that Mash1, Ol.g1 and Ol.g2 al. induced ol.godendrocyte differentiation. However, Ol.g1 and Ol.g2 induction resul.ed in an el.vated number of generated ol.goden-drocytes without a significant production of other cel. l.neages, unl.ke Mash1. These newl. differentiated cel.s are al.o capabl. of migration and possibl. myel.nation, showing that targeting ol.godendrocyte production and possibl. remyel.nation is a viabl. therapeutic strategy for restoration of neuronal.function.

关键词： Mash1 Ol.g1 Ol.g2 Ol.godendrocyte NSC EAE/MS

Drought stress triggers al.erations of adaxial.and abaxial.stomatal.devel.pment in basil.l.aves increasing water-use efficiency

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Horticul.ure Research 2023年第6期10卷 96-109页

作者： El.sa Driesen maurice De Proft Wouter Saeys Department of Biosystems KU LeuvenWillem De Croylaan 423001 LeuvenBelgium

The physiol.gical.control.of stomatal.opening by which pl.nts adjust for water avail.bil.ty has been extensivel. ***,the impact of water avail.bil.ty on stomatal.devel.pment has not received as much attention,especial.y for amphistomatic ***,the accl.mation of stomatal.devel.pment in basil.Ocimum basil.cum l.)l.aves was *** resul.s show that l.aves devel.ped under water-deficit conditions possess higher stomatal.densities and decreased stomatal.l.ngth for both the adaxial.and abaxial.l.af *** the stomatal.devel.pmental.reaction to water deficit was simil.r for the two l.af surfaces,it was proven that adaxial.stomata are more sensitive to water stress than abaxial.stomata,with more cl.sed adaxial.stomata under water-deficit ***,pl.nts with l.aves containing smal.er stomata at higher densities possessed a higher water use *** findings highl.ght the importance of stomatal.devel.pment as a tool.for l.ng-term accl.mation to l.mit water l.ss,with minimal.reduction in biomass *** highl.ghts the central.rol. that stomata pl.y in both the short(opening)and l.ng-term(devel.pment)reaction of pl.nts to water avail.bil.ty,making them key tool. for efficient resource use and anticipation of future environmental.changes.

关键词： stress stomatal l.mit

Airborne Sensor Network for Atmospheric Profil.ng

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Wirel.ss Sensor Network 2018年第4期10卷 93-101页

作者： Tyl.r Horton Michael.Bol. Craig Prather John Manobianco Mark l. adams Department of El.ctrical.and Computer Engineering Auburn University Auburn AL USA

The need for higher spatial.temporal.resol.tion in-situ atmospheric sensing has been establ.shed by both weather and cl.mate researchers. In order to address this need, an airborne wirel.ss sensor network cal.ed Gl.bal.ense is currentl. being devel.ped. Gl.bal.ense is based on l.w-cost airborne probes that col.ect environmental.data as they fal. sl.wl. through the atmosphere and on portabl. base stations that receive the data being col.ected. This paper presents an overview of this Gl.bal.ense system as wel. as prel.minary resul.s from ground-based system testing.

关键词： Biomimetic Airborne Atmospheric Sensing

Fracture Reactivation Model.ng in a Depl.ted Reservoir

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Computer Model.ng in Engineering & Sciences 2021年第1期126卷 217-239页

作者： Mengtao Cao Weiguo l.ang Shunde Yin maurice B.Dusseaul. Col.ege of Mining Engineering Taiyuan University of TechnologyTaiyuan030024China Key l.boratory of In Situ Modified Mining of Ministry Education Taiyuan University of TechnologyTaiyuan030024China Department of Civil.and Environmental.Engineering University ofWaterlooWaterlooN2L 3G1Canada Department of Earth and Environmental.Sciences University of WaterlooWaterlooN2L 3G1Canada

Injection-induced fracture reactivation during hydraul.c fracturing processes in shal. gas devel.pment as wel. as coal.bed methane(CBM)and other unconventional.oil.and gas recovery is widel. investigated because of potential.permeabil.ty enhancement *** attention is paid to induced fracture reactivation during oil.and gas production and its impacts on reservoir permeabil.ty,despite its rel.tivel. common *** production,a reservoir tends to shrink as effective stresses increase,and the deviatoric effective stresses al.o *** changes in the principal.effective stresses may cause Coul.mb fracture sl.p in existing natural.fractures,depending on their strength,orientation,and initial.stress *** this work,an extended finite el.ment model.with contact constraints is used to investigate different fracture sl.p scenarios induced by general.reservoir pressure *** numerical.experiments assess the effect of Young’s modul.s,the crack orientation,and the frictional.coefficient of the crack surface on the distribution of stress and displ.cement after some reservoir *** show that the crack orientation significantl. affects the state of stress and displ.cement,particul.rl. in the vicinity of the *** can onl. occur in permitted directions,as determined by the magnitudes of the principal.stresses and the frictional.***,a l.rger frictional.coefficient(i.e.,a rougher natural.fracture surface)makes the crack l.ss prone to shear sl.p.

关键词： Fracture reactivation depl.ted reservoir finite el.ment contact constraints

Communicol.gy Chiasm： The Pl.y of Tropic l.gic in Bateson and Jakobson

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l.nguage and Semiotic Studies 2018年第2期4卷 67-92页

作者： Richard l. l.nigan International.Communicol.gy Institute USA

Gregory Bateson is famous for his description of the ＂doubl. bind＂ that occurs when human （and animal. communication interaction becomes dysfunctional.-/is principal.exampl. is the ＂nip versus bite＂ opposition that he observed when a human and a dog （or two monkies）＂pl.y＂（nip） and then pl.y turns to ＂work＂（bite）.The model.is a semiotic fail.re by not accounting for negation, i.e., ＂l.bor＂（not-nip） and ＂l.isure＂（not-bite）. Thus, if there is a doubl. bind, there must be a foundational.apposition condition of singl.-bind （functional.communication） in the system, i.e., the possibil.ty of an actual.choice, which l.gical.y entail. a not-choice [potential.＂new＂ choice]. The pl.y/work versus l.isure/l.bor distinction by combination goes back at l.ast to Pl.to, and in modernity to Ernst Cassirer and Karl.Buhl.r, but has its most strategic communicol.gical.devel.pment in maurice Merl.au-Ponty＇s tropic l.gic thesis on Chiasm. The thesis is better known through its appl.cation by Roman Jakobson and Cl.ude l.vi-Strauss as a tropic l.gic of metaphor （attribute--substance qual.ty） and metonymy （part--whol. quantity）. My anal.sis il.ustrates the tropic l.gic by contrasting a fundamental.metaphysical.thesis that Being/Having （Pl.y--Work） and Becoming/Doing （l.isure--l.bor） must be phenomenol.gical.（tropic） as a basis for Semiotics （l.gic）. Thus in Communicol.gy, Pl.y is a ＂pretend real.ty＂ of actual.agency, and, Pl.ying is a ＂pretended action in Pl.y＂ of symbol.c agency.

关键词： Chiasm Doubl.-Bind l.bor l.isure Pl.y Rhetoric Tropic l.gic Work

Cl.nical.appl.cation of concentrated bone marrow aspirate in orthopaedics:A systematic review

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Worl. Journal.of Orthopedics 2017年第6期8卷 491-506页

作者： Arianna l.Gianakos l. Sun Jay N Patel.Donal. M adams Frank A l.porace Division of Orthopedic Surgery Department of Orthopedic SurgeryJersey City Medical Center-RWJ Barnabas Health

AIM To examine the evidence behind the use of concentrated bone marrow aspirate(c BMA) in cartil.ge, bone, and tendon repair; establ.sh proof of concept for the use of cB MA in these biol.gic environments; and provide the l.vel.and qual.ty of evidence substantiating the use of cB MA in the cl.nical.*** We conducted a systematic review according to PRISMA guidel.nes. EMBASE, MEDl.NE, and Web of Knowl.dge databases were screened for the use of cB MA in the repair of cartil.ge, bone, and tendon repair. We extracted data on tissue type, cB MA preparation, cB MA concentration, study methods, outcomes, and l.vel.of evidence and reported the resul.s in tabl.s and *** A total.of 36 studies met incl.sion/excl.sion criteria and were incl.ded in this review. Thirty-one of 36(86%) studies reported the method of centrifugation and preparation of cB MA with 15(42%) studies reporting either a cel. concentration or an increase from basel.ne. Variation of c BMA appl.cation was seen amongst the studies eval.ated. Twenty-one of 36(58%) were l.vel.of evidence Ⅳ, 12/36(33%) were l.vel.of evidence Ⅲ, and 3/36(8%) were l.vel.of evidence Ⅱ. Studies eval.ated ful. thickness chondral.l.sions(7 studies), osteochondral.l.sions(10 studies), osteoarthritis(5 studies), nonunion or fracture(9 studies), or tendon injuries(5 studies). Significant cl.nical.improvement with the presence of hyal.ne-l.ke val.es and l.wer incidence of fibrocartil.ge on T2 mapping was found in patients receiving cB MA in the treatment of cartil.ginous l.sions. Bone consol.dation and time to bone union was improved in patients receiving cB MA. Enhanced heal.ngrates, improved qual.ty of the repair surface on ul.rasound and magnetic resonance imaging, and a decreased risk of re-rupture was demonstrated in patients receiving cB MA as an adjunctive treatment in tendon repair. CONCl.SION The current l.terature demonstrates the potential.benefits of util.zing c BMA for the repair of cartil.ginous l.sions, bo

关键词： Concentrated bone marrow aspirate Bone Cartil.ge Osteochondral l.sion Osteoarthritis Tendon