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35篇 您的检索式:作者名="David Watts"
    题名 作者 年代 出处 被引量
1中国西南虎跳峡地区云南松林土壤侵蚀控制潜能(英文)显示文摘作为中国西南长江上游众多峡谷、深谷的典型代表 ,虎跳峡地区的土壤侵蚀是一个严重的环境问题。为了解决侵蚀问题 ,大面积的适宜荒山已经植树造林。云南松是运用最广的造林树种之一。本研究试图以虎跳峡地区1993年的情况为例 ,探讨云南松林土壤侵蚀控制的水文效应及其潜能。研究发现 ,云南松密林能够截留 31.1%的降雨量。林下的土壤溅蚀量 (4.9kg.m- 2 )比裸地上的 (6 .1kg.m- 2 )降低了 19.7%。松林内的土壤流失总量与裸地的5 7.9g.m- 2 比较 ,降低到 32 .9g.m- 2 ,表明松林减少了 43.19%的土壤流失。实验指出 ,降雨强度对这里的土壤流失 ,以及云南松林的侵蚀控制作用有明显的影响。另一方面 ,研究也发现松林能够产生较大直径的叶滴 ,引起林下的叶滴溅蚀 ;而且 ,松林并不能明显地减少地表径流。然而 ,从综合作用来看 ,云南松密林具有土壤侵蚀控制的净效应。与茂密的草丛相比 ,松林侵蚀控制的效果相对较低。周跃 李玉辉 David Watts 2000植物生态学报2000,24,1:9
2风电入网风险量化及对电力系统优化调度影响显示文摘随着风电并网容量的持续增加,风电随机性给电力系统运行带来的风险也不断增加,传统经济调度方法已经难以满足电力系统安全运行需求。文章对风电不确定性带来的运行风险及节能减排的贡献进行量化研究,将量化所得的发电成本、环境成本及系统运行风险作为调度特征量,构建同时考虑发电资源消耗最少、环境效益最好和系统运行风险最小的多目标优化调度模型。以某地区电网为例,应用非线性原-对偶内点法对所建模型进行求解,分析风电入网系统运行风险、风电穿透功率对调度计划的影响及不同的调度特征量对总成本的影响,验证本文所建模型的合理性和有效性。任惠 范佳琪 David Watts 向安韡 丁茂生 2015可再生能源2015,33,4:6
3Does progesterone show neuroprotective effects on traumatic brain injury through increasing phosphorylation of Akt in the hippocampus?显示文摘There are currently no federally approved neuroprotective agents to treat traumatic brain injury. Progesterone, a hydrophobic steroid hormone, has been shown in recent studies to exhibit neuroprotective effects in controlled cortical impact rat models. Akt is a protein kinase known to play a role in cell signaling pathways that reduce edema, inflammation, apoptosis, and promote cell growth in the brain. This study aims to determine if progesterone modulates the phosphorylation of Akt via its threonine 308 phosphorylation site. Phosphorylation at the threonine 308 site is one of several sites responsible for activating Akt and enabling the protein kinase to carry out its neuroprotective effects. To assess the effects of progesterone on Akt phosphorylation, C57BL/6 mice were treated with progesterone(8 mg/kg) at 1(intraperitonally), 6, 24, and 48 hours(subcutaneously) post closed-skull traumatic brain injury. The hippocampus was harvested at 72 hours post injury and prepared for western blot analysis. Traumatic brain injury caused a significant decrease in Akt phosphorylation compared to sham operation. However, mice treated with progesterone following traumatic brain injury had an increase in phosphorylation of Akt compared to traumatic brain injury vehicle. Our findings suggest that progesterone is a viable treatment option for activating neuroprotective pathways after traumatic brain injury.Richard Justin Garling Lora Talley Watts Shane Sprague Lauren Fletcher David F.Jimenez Murat Digicaylioglu 2014Neural Regeneration Research2014,9,21:6
4The Nuclear-Retained Noncoding RNA MALAT1 Regulates Alternative Splicing by Modulating SR Splicing Factor Phosphorylation显示文摘Vidisha Tripathi Jonathan D. Ellis Zhen Shen David Y. Song Qun Pan Andrew T. Watt Susan M. Freier C. Frank Bennett Alok Sharma Paula A. Bubulya Benjamin J. Blencowe Supriya G. Prasanth Kannanganattu V. Prasanth 2010Molecular Cell2010,,6:4
5基于历史故障记录数据的电网连锁故障规模概率分布研究显示文摘连锁故障规模的概率分布描述了电网连锁故障的传播特点,是衡量电网发生大规模停电故障概率的有效方法之一。针对历史故障统计数据进行计算,是传统电力系统可靠性评估方法之一。将其与分支过程模型结合,用于区域电网的连锁故障分析。采用某区域电网14年历史故障数据为样本数据,针对多种概率模型进行比较分析,提出采用波雷-坦尔分支过程模型计算该区域电网连锁故障规模的概率分布,并采用误差分析研究了波雷-坦尔模型应用于实际电网风险管理的有效性和可能性。结果表明,波雷-坦尔模型能够很好地估计线路故障规模的概率分布。在相同置信度要求下,基于波雷-坦尔模型估计故障概率分布所需样本数据比直接根据实际故障数据计算所得概率分布所需样本数据降低一个数量级。任惠 熊吉 David Watts 陈曦 2014电力系统保护与控制2014,42,7:4
6Impact of Biochar Amendment on Fertility of a Southeastern Coastal Plain Soil显示文摘Jeffrey M. Novak Warren J. Busscher David L. Laird Mohamed Ahmedna Don W. Watts Mohamed A. S. Niandou 2009Soil Science2009,,2:3
7Lrig1 Expression Defines a Distinct Multipotent Stem Cell Population in Mammalian Epidermis显示文摘Kim B. Jensen Charlotte A. Collins Elisabete Nascimento David W. Tan Michaela Frye Satoshi Itami Fiona M. Watt 2009Cell Stem Cell2009,,5:2
8Remifentanil, Fentanyl, and Cardiac Surgery: A Double-Blinded, Randomized, Controlled Trial of Costs and Outcomes显示文摘Paul S. Myles Jennifer O. Hunt Helen Fletcher Jennifer Watts David Bain Andrew Silvers Mark R. Buckland 2002Anesthesia & Analgesia2002,,4:2
9Multifaceted roles for thymine DNA glycosylase in embryonic development and human carcinogenesis显示文摘胸腺嘧啶 DNA glycosylase (TDG ) 是在 DNA 修理, DNA demethylation,和 transcriptional 规定起重要作用的多功能的蛋白质。这些多样的功能在胚胎的开发和 carcinogenesis 使 TDG 成为唯一的酶。这评论为药治疗作为一个潜在的目标在人的癌症和 TDG 的以前未被认出的值讨论 TDG 的分子的函数。Xuehe Xu David S. Watt Chunming Liu 2016Acta Biochimica et Biophysica Sinica2016,48,1:2
10The Course of Posttransplant Hepatitis C Infection: Comparative Impact of Donor and Recipient Source of the Favorable IL28B Genotype and Other Variables显示文摘Andres Duarte-Rojo Bart J. Veldt David D. Goldstein Hans L. Tillman Kymberly D. Watt Julie K. Heimbach John G. McHutchison John J. Poterucha Florencia Vargas-Vorackova Michael R. Charlton 2012Transplantation Journal2012,,2:2
11Report of 'Workshop on science data management at the national institute of polar research'显示文摘Mitsuo Fukuchi Belbin Lee Watts David 2005Antarctic Record2005,49,1:1
12Investiga- tion into the behavior of armature ejecta in electromagnetic launchers显示文摘David A Wetz Jr Trevor J Watt Dwayne Surls 2011IEEE Trans Plasma Sci2011,39,3:1
13Epidemiology of the vasculitides显示文摘Richard A. Watts David G. I. Scott 2003Current Opinion in Rheumatology2003,,1:1
14Above-ground biomass accumulation and nitrogen fixation of broom ( Cytisus scoparius L.) growing with juvenile Pinus radiata on a dryland site显示文摘Michael S. Watt Peter W. Clinton David Whitehead Brian Richardson Euan G. Mason Alan C. Leckie 2003Forest Ecology and Management2003,,1:1
15Three-dimensional printing surgical instruments: are we there yet?显示文摘Timothy M. Rankin Nichoaas A. Giovinco Daniel J. Cucher George Watts Bonnie Hurwitz David G. Armstrong 2014Journal of Surgical Research2014,,:1
16Mathematical analysis of tooth and restoration contour using image analysis显示文摘Nabil Alhouri David C. Watts J. Fraser McCord Philip W. Smith 2004Dental Materials2004,,9:1
17The prion protein family: Diversity, rivalry, and dysfunction显示文摘Joel C. Watts David Westaway 2007BBA - Molecular Basis of Disease2007,,6:1
18Epidemiology of ANCA-associated vasculitis显示文摘Ntatsaki E Watts RA David GI 2010Rheum Dis Clin N Am2010,36,3:1
19A novel automated image analysis method for maceral analysis显示文摘Edward Lester David Watts Michael Cloke 2002Fuel2002,81,:1
20Impact of Biochar Amendment on Fertility of a Southeastern Coastal Plain Soil显示文摘Jeffrey M. Novak Warren J. Busscher David L. Laird Mohamed Ahmedna Don W. Watts Mohamed A. S. Niandou 2009Soil Science2009,,2:1
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