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59篇 您的检索式:作者名="Heather F"
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1运用卫星数据和来自国家森林清查的野外数据进行全国森林变量估计显示文摘瑞典约有55%的土地面积被森林所覆盖。目前,瑞典的森林覆盖没有统一的和地理学上明晰的描述。现存的独立性数据源是Landsat TM和SPOT HRV卫星数据、地图蒙片(map mask)和森林清查样地。它们在一起,使森林变量(如材积和林分年龄)的计算机估计成为可能。这些估计的精确度在像素水平上是低的,但在林分水平上较高。在规划木材资源应如何加以利用或出于监测目的时,这类基于栅格的森林数据对政府来说是有帮助的。本文描述了以有效成本建立森林变量估计全国数据库的生成流程。我们在林分水平上评价了瑞典西南部某地森林变量估计的精确度。结果表明,总材积估计的整体均方根误差为33%,年龄估计的整体均方根误差为23%。Heather Reese Mats Nilsson Tina Granqvist Pahlén Olle Hagner Steve Joyce Ulf Tingelf Mikael Egberth Hkan Olsson 王胜 2003AMBIO-人类环境杂志2003,32,8:4
2非传统晶体生长的早期观察显示文摘晶体早期生长的研究揭示,在某些体系中,晶体生长可能并不遵循传统路径.借由某些聚合物或生物分子的帮助,无机晶体的前驱体或纳米晶体在生长初期有可能聚集为无序的大块颗粒.这些聚集体表面晶化形成高结晶度高密度的外壳,随后完成从表面到核心的晶化过程.此逆向晶体生长机理在一些诸如沸石、钙钛矿、金属和金属氧化物等无机化合物体系中均已被发现,在其他材料体系里也将得到验证.认识这一新的晶体生长路径将给予我们更多的自由度来实现晶体形态控制,也有助于我们对于许多天然矿物形成机制的理解.本文简要回顾了最近本领域研究中一些典型逆向晶体生长的例子.GREER Heather F 于丰娇 周午纵 2012中国科学:化学2012,42,1:3
3Perils of Rib Fractures显示文摘Sharma Om P Oswanski Michael F Jolly Shashank Lauer Sherry K Dressel Rhonda Stombaugh Heather A 2008The American Surgeon2008,,4:2
4Influence of Vehicle, Distant Topical Delivery, and Biotransformation on the Chemoreceptive Activity of Apigenin, a Plant Flavonoid, in Mouse Skin 显示文摘Boyong Li Heather Pinch Diane F B 1996Pharm Res1996,13,10:1
5Both viral transcription and replication are reduced when the rabies virus nucleoprotein is not phosphorylated 显示文摘Wu X F Gong X M Heather D 2002J Virol2002,76,:1
6Impact of nasal ventilation on survival in hypercapnic Duchenne muscular dystrophy显示文摘Simonds AK Muntoni F Heather S 1998Thorax1998,53,:1
7Evaluating form and function of regional partnerships:applying social net work analysis to the network for a healthy california,2001-2007显示文摘Jennifer G Marcy S Heather K F 0,,04:1
8The effects of structural and psychological empowerment on perceived respect in acute care nurses显示文摘Jayne F Heather L 2008Jour- nal of Nursing Management2008,16,:1
9Influence of HLA gene polymorphisms on susceptibility and outcome post infection with the SARS-CoV virus显示文摘Dear Editor,Severe Acute Respiratory Syndrome(SARS)has beendescribed as the first pandemic of the 21st century andbetween November 2002 and July 2003,over 8000 peo-ple were infected with the SARS-associated coronavirus(SARS-CoV).Polymorphisms in the human leukocyteantigen(HLA)system have been shown to influencesusceptibility to SARS-CoV but here we were unableFang Fang Yuan Zlatibor Velickovic Lesley J Ashton Wayne B Dyer Andrew F Geczy Heather Dunckley Garry W Lynch John S Sullivan 2014Virologica Sinica2014,29,2:1
10Elimination of endemic measles transmission in Australia 显示文摘Anita E Heywood Heather F Gidding Michaela A Riddell 2009Bull WHO2009,87,1:1
11Impact of nasal ventilation on survival in hypercapnic Duchenne muscular dystrophy显示文摘Simonds AK Muntoni F Heather S Thorax0,,:1
12Both viral transcription and replication are reduced when the rabies virus nucleoprotein is not phosphorylated显示文摘Wu X F Gong X M Heather D 2002J Virol2002,76,:1
13Isolation, characterization and expression analysis of three actin genes in the New Zealand black-footed abalone, Haliotis iris显示文摘Maxine J Heather J F Frank Y T 2006Marine Biotechnology2006,8,2:1
14Guided versus blind liver biopsy for chronic hepatitis C: clinical benefits and costs显示文摘Richard J Farrell Pauline F Smiddy Ruth M Pilkington Anne A Tobin Eoghan E Mooney Ian J Temperley George S McDonald Heather A Bowmer Graham F Wilson Dermot Kelleher 1999Journal of Hepatology1999,,4:1
15Vitamin D deficiency and associated factors in adolescent girls in Beijing显示文摘Du X Q Heather G David R F 2001Am J Clin Nutr2001,74,:1
16IL-4 and IL-12 negatively regulate TNF-a and IFN-?' induced fl-de- fensin expression through STAT-6, suppressor of cytokine sig- naling(SOCS)-I, and SOCS-3 显示文摘CRISTINA A HEATHER R F STEGANIA M 2007J Immunol2007,179,:1
17Sustaining urban forests 显示文摘John F D David J N Mary Heather N 2003Joumal of Arboriculture2003,29,1:1
18Anomalies in real and counterfactual worlds:An eye-movement investigation显示文摘Heather J F Anthony J S 0,,03:1
19On the relationship between boolean and fuzzy cellular automata显示文摘HEATHER B PAOLA F 2009Electronic Notes in Theoretical Computer Science2009,252,:1
20On the asymptotic behavior of fuzzy cellular automata显示文摘HEATHER B PAOLA F 2009Electronic Notes in Theoretical Computer Science2009,252,:1
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