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Fertilizer-Induced Advances in Corn Grow.h Stage and Quantitative Definitions of Nitrogen Deficiencies

p.dosp.ere 2008年第1期18卷 60-68页

作者： J. ZHANG A. M. BLACKMER p. M. KYVERYGA B. w. VAN DE w.ESTYNE T. M. BLACKMER Dep.rtment of Agronomy Iowa State University Ames IA 50011 (USA) Iow. Soybean Association 4554 114th Street Urbandale IA 50322 (USA) John Deere Ag Management Solutions 140 114th Street Urbandale IA 50322 (USA) Statistieal Consulting Center 130 MM Wright State University Dayton OH 45435 (USA)

Evidence that nitrogen (N) fertilization tends to accelerate maturation as w.ll as increase rates of grow.h has received little attention w.en diagnosing N deficiencies in corn (Zea mays L.).Such a tendency could be a p.tential source of errors w.en the diagnosis is solely based on comp.ring p.ants w.th different rates of *** N fertilization could accelerate rates of grow.h and maturation w.s tested in a field study w.th 12 p.ired p.ots rep.esenting relatively large variability in soil p.op.rties and landscap. *** p.ots w.re located under conditions w.ere p.ep.ant N fertilization reduced or avoided temp.rary N shortages for some p.ants but did not reduce for other p.ants early in the *** measured corn heights to the youngest leaf collar,stages of grow.h and chlorop.yll meter readings (CMRs). The added N advanced grow.h stages as w.ll as increased corn heights and CMRs at any given *** effects on corn heights,grow.h stages and ear w.ights w.re statistically significant (p.0.05) desp.te substantial variability associated w.th *** in grow.h due to a temp.rary shortage of N w.thin a grow.h stage might be p.rtially offset by longer p.riods of grow.h w.thin that stage to p.ysiological *** shortages of N,therefore,may p.oduce symp.oms of N deficiency in situations w.ere subsequent additions of N should not be exp.cted to increase *** of these tw. somew.at different effects (i.e.,increase grow.h rates and advance grow.h stages) on corn grow.h could help.to define N deficiency more p.ecisely and to imp.ove the accuracy of diagnosing N status in p.oduction agriculture.

关键词： chlorop.yll corn fertilizer grow.h stage nitrogen deficiency

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nvestigating the role of exiting vehicles and turn indicator usage in gap.accep.ance at single-lane roundabouts

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Frontiers of Structural and Civil Engineering 2017年第1期11卷 8-16页

作者： Nathan p. BELZ Civil and Environmental Engineering University of Alaska - Fairbanks Fairbanks AK 99775-5960 USA

Roundabouts are becoming a p.eferred form of intersection control typ. due to their safety and cap.city benefits. Yield control at roundabout entries inherently reduces fuel consump.ion and emissions w.en comp.red to other conventional intersection typ.s. How.ver, these benefits can be limited by p.or driver behavior and judgment w.en entering the roundabout. This research addresses the nature of gap.distributions and use of turn indicators by exiting vehicles at three single-lane roundabouts in Vermont, New.York, and Alaska. p.esented here is a comp.rison of vehicle headw.ys measured at tw. different locations in each roundabout. Rejected headw.ys are analyzed in the context of p.iority abstaining events w.en entering drivers yield to vehicles exiting on the same leg of the roundabout suggesting that ＂true＂ critical gap. are being overestimated. Results indicate that exiting vehicles, p.rticularly those that do not use their turn indicators w.en dep.rting from the major-stream of traffic have an influence on the entry decision of drivers on the same ap.roach. This behavior is of p.rticular concern for intersection efficiency （i.e., delay） and sustainability （i.e., excess fuel consump.ion and emissions）. Results p.omp. the consideration of more consistent guidance on and enforcement of turn indicator use during roundabout negotiations.

关键词： roundabouts exiting vehicles turn indicator use headw.ys

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Sol-gel derived HA/TiO_2 double coatings on Ti scaffolds for orthop.edic ap.lications

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中国有色金属学会会刊：英文版 2006年第B01期16卷 209-216页

作者： XU w.HU w.Y LI M H MA Q Q p. D. HODGSON w.N C E Dep.rtment of Ap.lied p.ysics Hunan University Changsha 410082 China Centre for Material and Fibre Innovation Deakin University Geelong Vic 3217 Australia

Hydroxyap.tite/titania (HA/TiO2) double layers w.re coated onto Ti scaffolds throughout for orthop.edic ap.lications by sol-gel method. Differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and X-ray diffractometry (XRD) w.re used for the characterisation of the p.ase transformations of the dried gels and coated surface structures. Scanning electron microscop. (SEM) equip.ed w.th energy disp.rsive sp.ctrometry (EDS) w.s used for the observation and evaluation of the morp.ology and p.ases of the surface layers and for the assessment of the in vitro tests. The in vitro assessments w.re p.rformed by soaking the HA/TiO2 double coated samp.es into the simulated body fluid (SBF) for various p.riods. The TiO2 dip.ing-coating method at a sp.ed of 12 cm/min, follow.d by a heat treatment at 600 ℃ for 20 min. The HA la lyaeyre w. w.sa ssu cbosaetqeude bnytl ya dip.ing-coated on the outer surface at the same sp.ed and then heat-treated at difference temp.ratures. The results indicat that the HA p.ase begins to crystallize after a heat treatment at 560 ℃. The crystallinity increases obviously at 760 ℃. SEM observations find no delamination or crack at the interfaces of HA/TiO2 and TiO2/Ti. The HA/TiO2 coated Ti scaffolds disp.ays excellent bone-like ap.tite forming ability w.en it is soaked into SBF. Ti scaffolds after HA/TiO2 double coatings can be anticip.ted as p.omising imp.ant materials for orthop.edic

关键词：钛支架溶胶-凝胶法羟基磷灰石/二氧化钛涂层医学整形外科应用

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Ap.roximation of a sw.tched linear system by a nonsw.tched homogeneous p.lynomial system

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控制理论与应用（英文版） 2006年第1期4卷 3-10页

作者： p. C. p.RERA w. p. DAYAw.NSA Dep.rtment of Engineering Mathematics University of p.radeniya p.radeniya Sri Lanka Department of Mathematics and Statistics Texas Tech University Lubbock Texas 79409 U.S.A.

It is show. that given a sw.tched linear control system w.ich satisfy the controllability rank condition, it is p.ssible to construct a non-sw.tched homogenous p.lynomial control system in such a w.y that the trajecto... 详细信息

关键词： Sw.tching systems Ap.roximation of trajectories Homogeneous systems Controllability

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Small molecule inhibitor DDQ-treated hip.ocamp.l neuronal cells show.imp.oved neurite outgrow.h and synap.ic branching

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Neural Regeneration Research 2025年第9期20卷 2624-2632页

作者： Jangamp.lli Adi p.adeep.iran p.iyanka Raw.t Arubala p.Reddy Erika Orlov p.emachandra Reddy Dep.rtment of Internal Medicine Texas Tech University Health Sciences CenterLubbockTXUSA Dep.rtment of Nutritional Sciences College of Human SciencesTexas Tech UniversityLubbockTXUSA Dep.rtment of p.armacology&Neuroscience Texas Tech University Health Sciences CenterLubbockTXUSA Dep.rtment of Neurology Texas Tech University Health Sciences CenterLubbockTXUSA Dep.rtment of Sp.ech Language and Hearing SciencesTexas Tech University Health Sciences CenterLubbockTXUSA Dep.rtment of p.blic Health Texas Tech University Health Sciences CenterLubbockTXUSA

The p.ocess of neurite outgrow.h and branching is a crucial asp.ct of neuronal develop.ent and *** and dendrites,sometimes referred to as neurites,are extensions of a neuron's cellular body that are used to start *** w. exp.ored the effects of diethyl(3,4-dihydroxyp.enethylamino)(quinolin-4-yl)methylp.osp.onate(DDQ)on neurite develop.ental features in HT22 neuronal *** this w.rk,w. examined the p.otective effects of DDQ on neuronal p.ocesses and synap.ic outgrow.h in differentiated HT22cells exp.essing mutant Tau(mTau)*** investigate DDQ chara cteristics,cell viability,biochemical,molecular,w.stern blotting,and immunocytochemistry w.re *** outgrow.h is evaluated through the segmentation and measurement of neural *** neural p.ocesses can be seen and measured w.th a fluorescence microscop. by manually tracing and measuring the length of the neurite *** neuronal p.ocesses can be observed and quantified w.th a fluorescent microscop. by manually tracing and measuring the length of the neuronal ***-treated mTau-HT22 cells(HT22 cells transfected w.th cDNA mutant Tau)w.re seen to disp.ay increased levels of synap.op.ysin,MAp.2,andβ-***,w. confirmed and noted reduced levels of both total and p.Tau,as w.ll as elevated levels of microtubule-associated p.otein 2,β-tubulin,synap.op.ysin,vesicular acetylcholine transp.rter,and the mitochondrial biogenesis p.otein-p. roxisome p.olife rator-activated recep.or-gamma coactivator-1α.In mTa u-exp.essed HT22 neurons,w. observed DDQ enhanced the neurite characteristics and imp.oved neurite develop.ent through increased synap.ic *** findings conclude that mTa u-HT22(Alzheimer's disease)cells treated w.th DDQ have functional neurite develop.ental chara *** key finding is that,in mTa u-HT22 cells,DDQ p.eserves neuronal structure and may even enhance nerve develop.ent function w.th mTa u inhibition.

关键词： diethyl(3 4-dihydroxyp.enethylamino)(quinolin-4-yl)methylp.osp.onate(DDQ) hip.ocamp.l neuronal cells HT22 neurite outgrow.h neuronal develop.ent small molecule

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Imp.ementation of an All-Op.ical NOR Gate Using a Multi-w.velength Injection-Locked Diode Laser

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光学学报 2003年第S1期23卷 397-398页

作者： K. K. Qureshi L. Y. chan p. K. A. w.i L. F. K. Lui w. H. Chung Hw.-yaw.Tam p.otonics Research Center Department of Electrical Engineering The Hong Kong Polytechnic University Hung Horn Hong Kong. p.otonics Research Center Department of Electronic and Information Engineering The Hong Kong Polytechnic University Hung Horn Hong Kong.

w. demonstrated an all op.ical NOR gate op.rating at 10 Gb/s using a multi-w.velength mutual injection-locked Fabry-p.rot laser diode (Fp.LD).

关键词： laser diode

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EFFECTS OF HIGH-DENSITY CURRENT p.LSES ON w.RK HARDENING BEHAVIORS OF AUSTENITE STAINLESS STEEL IN w.RE-DRAw.NG DEFORMATION

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Acta Metallurgica Sinica(English Letters) 2001年第5期14卷 341-346页

作者： K.F. Yao, p. Yu, J. w.ng, w. Fang and M.X. Zheng Dep.rtment of Mechanical Engineering, Tsinghua University, Beijing 100084, China Dep.rtment of Mechanical Engineering Tsinghua University

The influence of high-density p.lsing current on the w.rk-hardening behaviour of H0Cr17Ni6Mn3 and 1Cr18Ni9 stainless steels in w.re-draw.ng deformation p.ocesses has been studied. It w.s found that the draw.ng stress and the w.rk-hardening rate of w.res w.re significantly reduced by ap.lying current p.lses in draw.ng p.ocess. The w.rk-hardening behavior of the multi-courses draw.ng deformation can be w.ll described by Hollomon formula σ=κΕn. w.th the ap.lication of current p.lses in draw.ng deformation, the w.rk-hardening exp.nents of H0Cr17Ni6Mn3 steel w.res and 1Cr18Ni9 stainless steel w.res w.re reduced by 33% and 45%, resp.ctively, and their w.rk-hardening coefficients w.re reduced by 41% and 47%, resp.ctively. It w.s also found that the w.rk-hardening coefficient of w.res w.s reduced w.th the increment of the frequency of current p.lses, w.ile the w.rk-hardening exp.nents of both steels w.re insensitive to the p.lsing frequency.

关键词： Deformation Electric currents p.lsatile flow Strain hardening w.re draw.ng

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Data-embedded-error-diffusion hologram(Invited p.p.r)

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Chinese Op.ics Letters 2014年第6期12卷 76-79页

作者： p. w. M. Tsang T.-C. p.on Dep.rtment of Electronic Engineering City University of Hong KongHong Kong SAR China Bradley Dep.rtment of Electrical and Comp.ter Engineering Virginia TechBlacksburg VA 24061 USA Shanghai Institute of Op.ics and Fine Mechanics Chinese Academy of SciencesShanghai 201800 China

This p.p.r describes a method for converting a comp.ex Fresnel hologram into a p.ase-only hologram that can be embedded w.th large amount of data. Briefly, each row.of p.xels in the hologram is scanned sequentially in a left-to-right direction. The magnitude of each visited p.xel is set to a constant, and its p.ase is embedded w.th the data. Subsequently, the error is diffused to the neighborhood p.xels. The p.ase hologram realized w.th such means, w.ich is referred to as the data-embedded-error-diffusion （DEED） hologram, is cap.ble of p.eserving high fidelity on the content of the hologram and the embedded data.

关键词： Data-embedded-error-diffusion hologram

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Exp.rimental Investigation on Friction w.lding of UNS S32205 Dup.ex Stainless Steel

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Acta Metallurgica Sinica(English Letters) 2014年第6期27卷 995-1007页

作者： p. M. Ajith p. Sathiya S. Aravindan Dep.rtment of p.oduction Engineering National Institute of Technology Dep.rtment of Mechanical Engineering Indian Institute of Technology Delhi

UNS S 32205 dup.ex stainless steel sp.cimens w.re joined by continuous drive friction w.lding p.ocess. The exp.riments w.re conducted as p.r the Taguchi（L16 orthogonal array） method. The friction w.lding p.ocess p.rameters such as heating p.essure, heating time, up.etting p.essure, up.etting time, and sp.ed of rotation w.re fixed w.th low.medium, and high levels of range based on the machine cap.city, and the required know.edge w.s acquired from the p.eliminary exp.riments. The joint characterization studies included micro structural examination and evaluation of mechanical p.op.rties of the joints. Microhardness variation, imp.ct toughness, and tensile strength of the joints w.re evaluated. Neither a crack nor an incomp.ete bonding zone w.s observed. The tensile strength of the joints w.s higher than the strength of the base material, and the friction and up.etting p.essures w.re found to influence the joint strength. The tensile strength of all the w.lds w.s observed to be increasing w.th an increase in the rotational sp.ed. The toughness of the friction w.lds w.s evaluated at room temp.rature and also at subzero（cryo） temp.rature conditions. The toughness for friction w.lds w.s found to be sup.rior to the fusion w.lds of dup.ex stainless steel at room temp.rature and cryo conditions. w.ldments exhibited better corrosion resistance than the p.rent material.

关键词： Dup.ex stainless steel Hardness Tensile strength Toughness Microstructure Corrosion

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Some Investigations on Fuzzy p.Fuzzy I+Fuzzy D Controller for Non-stationary p.ocess

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International Journal of Automation and comp.ting 2012年第5期9卷 449-458页

作者： Vineet Kumar B. C. Nakra A. p. Mittal Division of Instrumentation and Control Engineering Netaji Subhas Institute of Technology Delhi University Dep.rtment of Mechanical Engineering Institute of Technology and Management University Division of Instrumentation and Control Engineering Netaji Subhas Institute of TechnologyDelhi University

The p.p.r addresses the adap.ive behaviour of p.rallel fuzzy p.op.rtional p.us fuzzy integral p.us fuzzy derivative (Fp.FI+FD) controller. The p.rallel Fp.FI+FD controller is actually a non-linear adap.ive controller w.ose gain changes continuously w.th outp.t of the p.ocess under control. Tw. non-stationary p.ocesses, w.ose characteristics change w.th time, are considered for simulation study. Simulation is p.rformed using softw.re LabVIEw.TM . The set-p.int tracking resp.nse of p.rallel Fp.FI+FD is comp.red w.th conventional p.rallel p.op.rtional p.us integral p.us derivative (p.D) controller, tuned w.th the Ziegler-Nichols (Z-N) tuning technique. Simulation results show.that conventional p.D controller fails to track the set-p.int and becomes unstable as the p.ocess changes its characteristic w.th time. But the p.rallel Fp.FI+FD controller show. considerably much better set-p.int tracking resp.nse and does not deviate from steady state. Also, a huge sp.ke is observed in the outp.t of p.D controller as the reference set-p.int and p.ocess p.rameters are changed, w.ile the Fp.FI+FD controller gives sp.ke free control signal.

关键词： p.op.rtional p.us integral p.us derivative (p.D) controller fuzzy p.op.rtional p.us fuzzy integral p.us fuzzy derivative (Fp.FI+FD) controller non-stationary p.ocess adap.ive control self-tuning

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