|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | White grapes arose through the mutation of two similar and adjacent regulatory genes显示文摘 | Amanda R.Walker ElizabethLee JochenBogs Debra A. J.McDavid Mark R.Thomas Simon P.Robinson | 2007 | The Plant Journal2007，，5： | 3 |
| 2 | The Impact of Management on Administrative and Survey Measures of Organizational Performance显示文摘 | R.Andrews G.Boyne R.Walker | | 0，，02： | 1 |
| 3 | Seasonal water use characteristics of tall wheatgrass [Agropyron elongatum (Host) Beauv.] in a saline environment显示文摘 | T. M.BLEBY M.AUCOTE A. K.KENNETT‐SMITH G. R.WALKER D. P.SCHACHTMAN | 2008 | Plant Cell & Environment2008，，11： | 1 |
| 4 | The use of chronosequences in studies of ecological succession and soil development显示文摘 | Lawrence R.Walker David A.Wardle Richard D.Bardgett Bruce D.Clarkson | 2010 | Journal of Ecology2010，，4： | 1 |
| 5 | White grapes arose through the mutation of two similar and adjacent regulatory genes显示文摘 | Amanda R.Walker ElizabethLee JochenBogs Debra A. J.McDavid Mark R.Thomas Simon P.Robinson | 2007 | The Plant Journal2007，，5： | 1 |
| 6 | 关于以5-氟脲嘧啶为辅助的化放疗对可切除的胰腺癌有无益处的Meta分析显示文摘 研究背景
局限性胰腺癌的手术切除有明显的姑息性作用,但仅提供有限的治愈机会.尽管成功的手术切除率不断提高,但临床观察到总的中位生存期仅为1~2年.…… | Amit Kbanna Gaail R.Walker Alan S.Livingstones Kristopher L.Arbeart Caio Rocha-Lima Leonidas G.Koniaris 邓斐文 | 2007 | 中华普通外科学文献(电子版)2007，1，1： | 0 |
| 7 | Decoupled drought responses of fine-root versus leaf acquisitive traits among six Prunus hybrids显示文摘要预测干旱对森林和果树种植的影响,就需要更好地了解干旱胁迫对叶片和细根的资源获取性状(比叶面积SLA、比根面积SRA以及比根长SRL)的影响。本研究试图验证以下科学假设:在重度干旱胁迫下,叶片与细根的资源获取性状具有协同效应,使得植物能够采取整合的资源节约策略。我们收集了不同干旱敏感性的六种李属砧木的幼树,通过在温室中对它们进行干旱试验来验证我们的科学假设。这些幼树被分为两组进行水分处理试验,即对照处理组(浇水量为100%田间持水量)与重度干旱处理组(每种砧木的浇水量为该砧木对照组植物每日蒸散量的33%)。在处理开始后的第30天和第60天,分别对两组处理下的六种砧木的植物叶片与细根进行取样。结果表明,在重度干旱胁迫下,没有任何一种植物同时显著降低了SLA和SRA(或SRL)。六种李属砧木植物的细根性状表现出两种主要的干旱响应组合:(1)根组织密度(RTD)增大,同时平均根径减小,而SRL没有显著变化;(2)RTD增大,同时SRL减小,而平均根径没有显著变化。六种砧木植物性状的干旱响应展现出两个相互垂直的变化梯度,这两个梯度均以从对照处理组到干旱处理组植物的资源节约性变化为特征,其中一个梯度展现了叶片气体交换,SRA,SRL以及RTD的干旱响应之间的密切相关关系,而另一个梯度以SLA的降低为特征。这些发现突出了(1)根系性状干旱响应的多维性;(2)重度干旱胁迫下,叶片经济性状与叶片水力性状之间的解耦联关系;(3)重度干旱胁迫下,叶片水力性状与根系水力性状之间的协同变化关系。这项研究有助于在种内尺度上确认根系干旱响应多维性的起源,并重点突出了不同植物如何通过不同的叶片与细根性状的干旱响应组合而得以在重度干旱胁迫下存活。 | Shuang-Xi Zhou Rob R.Walker Everard Edwards | 2020 | Journal of Plant Ecology2020，13，3： | 0 |
| 8 | 用校正的X射线粉末衍射强度估算绿泥石中重原子的含量和分配显示文摘底面X射线粉末衍射(XRD)峰的相对强度可用来估算绿泥石中重原子的含量和分配。然而,要使这些峰值具有估算意义,必须进行样品厚度、样品长度和矿物颗粒择优取向效应的校正。所有这些效应都与2θ有关,可用一简单的公式进行样品厚度效应的校正。样品长度效应可通过使用矩形样品得到消除,只要矩形样品能保证在所研究的衍射角范围内样品与整个X射线束相交。矿物颗粒的择优取向可以测量或估算,获得估算值较快也较容易,并且误差不超过测量值的5%.将进行这些样品效应校正之前估算的绿泥石成分参数与校正之后估算的那些成分参数加以比较,可以看出未校正的值与校正值不一样,误差可达校正值的55%.如果对测量数据不做这些效应的校正,则同一种样品用滤膜片和多孔板两种不同的方法制备将产生大不一样的成分结果.重复三次的分析结果表明,在计算绿泥石中重原子的分配和含量时,最好使用XRD强度比值003/001,因为001峰相对较强. | Jeffrey R.Walker 章跟宁 | 1989 | 地质科学译丛1989，6，4： | 0 |
| 9 | Intracranial pressure is elevated at 24h post-stroke inmice显示文摘Background:It has long been assumed that post-stroke intracranial pressure(ICP)elevation occurs because of large infarct and edema volumes.However,we have repeatedly shown IcP elevation at 24 h post-stroke in the presence of little to no edema in rats.Biological processes are often conserved across species and types of injury.Therefore,we aimed to determine if an ICP rise occurs at 24 h post-stroke in the presence of small infarct and edema volumes in mice.Methods:Mice were randomized by random number table to either photothrombotic stroke or sham surgery(n=15).Epidural ICP was recorded using a fiber optic catheter at 1 h post-stroke(baseline)and between 23 and 24hpost-stroke.Results:ICP was significantly higher at 24 h compared to baseline in stroke animals(n=6;10.71±6.45mmHg vs.3.74±2.20mmHg,respec-tively;p=0.03).ICP at 24 h was also significantly higher in stroke mice compared to sham(n=6;3.45±1.43mmHg;p=0.02).There was no change in ICP in sham mice(p=0.9).Edema volumes in stroke animals were small(0.04±0.04 mm3)and unlikely to have caused significant ICP elevation.Conclusion:This study provides evidence of an edema-independent ICP elevation following small ischemic stroke in mice.The occurrence of this rise supports our findings in other species and suggests it is caused by a previously undescribed mechanism. | Kirby E.Warren Rebecca J.Hood Fredrick R.Walker Neil J.Spratt | 2024 | Neuroprotection2024，2，1： | 0 |
| 10 | Model Predictive Control Strategy for Residential Battery Energy Storage System in Volatile Electricity Market with Uncertain Daily Cycling Load显示文摘This paper presents a control strategy for residential battery energy storage systems,which is aware of volatile electricity markets and uncertain daily cycling loads.The economic benefits of energy trading for prosumers are achieved through a novel modification of a conventional model predictive control(MPC).The proposed control strategy guarantees an optimal global solution for the applied control action.A new cost function is introduced to model the effects of volatility on customer benefits more effectively.Specifically,the newly presented cost function models a probabilistic relation between the power exchanged with the grid,the net load,and the electricity market.The probabilistic calculation of the cost function shows the dependence on the mathematical expectation of market price and net load.Computational techniques for calculating this value are presented.The proposed strategy differs from the stochastic and robust MPC in that the cost is calculated across the market price and net load variations rather than across model constraints and parameter variations. | Dejan P.Jovanović Gerard F.Ledwich Geoffrey R.Walker | 2023 | Journal of Modern Power Systems and Clean Energy2023，11，2： | 0 |
| 11 | Electricity Tariff Aware Model Predictive Controller for Customer Battery Storage with Uncertain Daily Cycling Load显示文摘To optimally control the energy storage system of the battery exposed to the volatile daily cycling load and electricity tariffs,a novel modification of a conventional model predictive control is proposed.The uncertainty of daily cycling load prompts the need to design a new cost function which is able to quantify the associated uncertainty.By modelling a probabilistic dependence among flow,load,and electricity tariffs,the expected cost function is obtained and used in the constrained optimization.The proposed control strategy explicitly incorporates the cycling nature of customer load.Furthermore,for daily cycling load,a fixed-end time and a fixed-end output problem are addressed.It is demonstrated that the proposed control strategy is a convex optimization problem.While stochastic and robust model predictive controllers evaluate the cost concerning model constraints and parameter variations.Also,the expected cost across the flow variations is considered.The density function of load probability improves load prediction over a progressive prediction horizon,and a nonlinear battery model is utilized. | Dejan P.Jovanović Gerard F.Ledwich Geoffrey R.Walker | 2022 | Journal of Modern Power Systems and Clean Energy2022，10，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员