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103篇 您的检索式:作者名="John Foster"
    题名 作者 年代 出处 被引量
1Ionospheric longitudinal variations at midlatitudes: Incoherent scatter radar observation at Millstone Hill显示文摘Incoherent scatter radar (ISR) extra-wide coverage experiments during the period of 1978-2011 at Millstone Hill are used to investigate longitudinal differences in electron density. This work is motivated by a recent finding of the US east-west coast difference in TEC suggesting a combined effect of changing geomagnetic declination and zonal winds. The current study provides strong supporting evidence of the longitudinal change and the plausible mechanism by examining the climatology of electron density Ne on both east and west sides of the radar with a longitude separation of up to 40o for different heights within 300-450 km. Main findings include: 1) The east-west difference can be up to 60% and varies over the course of the day, being positive (East side Ne > West side Ne) in the late evening, and negative (West side Ne > East side Ne) in the pre-noon. 2) The east-west difference exists throughout the year. The positive (relative) difference is most pronounced in winter; the negative (relative) difference is most pronounced in early spring and later summer. 3) The east-west difference tends to enhance toward decreasing solar activity, however, with some seasonal dependence; the enhancements in the positive and negative differences do not take place simultaneously. 4) Both times of largest positive and largest negative east-west differences in Ne are earlier in summer and later in winter. The two times differ by 12-13 h, which remains constant throughout the year. 5) Variations at different heights from 300-450 km are similar. Zonal wind climatology above Millstone Hill is found to be perfectly consistent with what is expected based on the electron density difference between the east and west sides of the site. The magnetic declination-zonal wind mechanism is true for other longitude sectors as well, and may be used to understand longitudinal variations elsewhere. It may also be used to derive thermospheric zonal winds.COSTER Anthea HOLT John FOSTER John ERICKSON Phil 2012Science China(Technological Sciences)2012,55,5:6
2IT-Software SMEs in China, Technology Transfer from Universities and Entrepreneurship, a Successful Nexus?显示文摘在更宽广的研究的实验工作上绘画,这份报纸检验技术成功地在完成如此的转移从大学正在被转移到在 entrepreneurship 的中国,和有效性在场的信息技术软件制造工程师协会。一个概念的框架被产生指导调查。数据用产生了 53 可用的回答的一张详细问询表被得到;53 个回答者中的 17 个的后续会见;并且相关政府官员(从科技和国有银行的部的公务员) 的四会见。有三主要调查结果。中国软件制造工程师协会趋于不情愿从本地大学采用新技术;有在聚会之间的普通目的缺乏;并且企业家确实承担了如此的技术转移的人,感到这个过程被可得到的金融的缺乏糟糕阻碍,并且在中国关于知识产权权利的差的保护表示了害怕。样品公司的多数机会主义地行动了,利用在挣主要使用现存技术的快速的回来的政府计划下面提供的好处。这些结论建议在转移有的技术的这个区域的中国政府政策仅仅限制了成功。Jianghong Cao M. John Foster Lorraine Watkins-Mathys 2014Frontiers of Business Research in China2014,8,1:3
3国际子午圈计划的科学挑战和观测系统显示文摘随着科技发展,人类活动对地面基础设施、空间系统和太空飞行器等高科技设施的依赖性日益增强.然而,这些高科技设施却常常遭受着来自太阳活动、地震、大气和气候变化、地磁场变化,以及全球电场波动等多种危害的威胁.监测和了解这些危害,并减轻其影响,是21世纪重要的科学挑战之一.这些危害尽管形式不同,但是有一个共同之处是会在电离层和中高层大气这个地球空间环境的关键圈层留下自己的印记.国际子午圈计划是一项由中国科学院牵头的国际大科学计划,其目标是整合、部署和运行一个全球研究和监测网络,充分利用电离层和中高层大气的'显示屏'效果来追踪这些日地空间危害的踪迹.文章展示了国际子午圈计划全球观测系统所需的位置分布,即优先沿120°E~60°W大子午圈部署监测设备,实现对主要地理和地磁纬度变化的最佳覆盖,继而辅之以30°E~150°W的第二个子午圈来捕捉经度变化.而后简单地描述了中国子午工程,以及横跨中国、俄罗斯和美洲的一些国家在内的120°E~60°W大子午圈上的监测台站和设备.刘维宁 Michel BLANC 王赤 Eric DONAVAN John FOSTER Mark LESTER Hermann OPGENOORTH 任丽文 2021中国科学:地球科学2021,51,12:3
4Two-Year Outcomes of the Ranibizumab for Edema of the mAcula in Diabetes (READ-2) Study显示文摘Quan Dong Nguyen Syed Mahmood Shah Afsheen A. Khwaja Roomasa Channa Elham Hatef Diana V. Do David Boyer Jeffery S. Heier Prema Abraham Allen B. Thach Eugene S. Lit Bradley S. Foster Erik Kruger Pravin Dugel Thomas Chang Arup Das Thomas A. Ciulla John S. P 2010Ophthalmology2010,,11:2
5Preferential Attachment of Peritoneal Tumor Metastases to Omental Immune Aggregates and Possible Role of a Unique Vascular Microenvironment in Metastatic Survival and Growth显示文摘Scott A. Gerber Viktoriya Y. Rybalko Chad E. Bigelow Amit A. Lugade Thomas H. Foster John G. Frelinger Edith M. Lord 2006The American Journal of Pathology2006,,5:2
6Cardiac resynchronization therapy for the treatment of heart failure in patients with intraventricular conduction delay and malignant ventricular tachyarrhythmias显示文摘Steven L Higgins John D Hummel Imran K Niazi Michael C Giudici Seth J Worley Leslie A Saxon John P Boehmer Michael B Higginbotham Teresa De Marco Elyse Foster Patrick G Yong 2003Journal of the American College of Cardiology2003,,8:2
7Cyclosporine for Ocular Inflammatory Diseases显示文摘R. Oktay Ka?maz John H. Kempen Craig Newcomb Ebenezer Daniel Sapna Gangaputra Robert B. Nussenblatt James T. Rosenbaum Eric B. Suhler Jennifer E. Thorne Douglas A. Jabs Grace A. Levy-Clarke C. Stephen Foster 2010Ophthalmology2010,,3:1
8Reallocation, tirm turnover, and efficiency: selection on productivity or profitability? 显示文摘Foster Lucia John Haltiwanger Chad Syverson 2008American Economic Review2008,98,1:1
9Azathioprine for Ocular Inflammatory Diseases显示文摘Sirichai Pasadhika John H. Kempen Craig W. Newcomb Teresa L. Liesegang Siddharth S. Pujari James T. Rosenbaum Jennifer E. Thorne C. Stephen Foster Douglas A. Jabs Grace A. Levy-Clarke Robert B. Nussenblatt Eric B. Suhler 2009American Journal of Ophthalmology2009,,4:1
10Ecology against capitalism 显示文摘John Bellamy Foster 2001Monthly Review2001,53,10:1
11‘Individualism-Collectivism’ as an Explanatory Device for Mental Illness Stigma显示文摘Chris Papadopoulos John Foster Kay Caldwell 2013Community Mental Health Journal2013,,3:1
12Micro-meso-macro 显示文摘Kurt Dopfer John Foster Jason Potts 2004Journal of Evolutionary Economics2004,,14:1
13The ecology of destruction 显示文摘John BeUamy Foster 2007Monthly Review2007,58,9:1
142010 ACCF/AHA Guideline for Assessment of Cardiovascular Risk in Asymptomatic Adults显示文摘Philip Greenland Joseph S. Alpert George A. Beller Emelia J. Benjamin Matthew J. Budoff Zahi A. Fayad Elyse Foster Mark A. Hlatky John McB. Hodgson Frederick G. Kushner Michael S. Lauer Leslee J. Shaw Sidney C. Smith Allen J. Taylor William S. Weintraub N 2010Journal of the American College of Cardiology2010,,25:1
15Training via the web: A virtual instrument 显示文摘John C Waller Natalie Foster 2000Computers& Education (S0360-1315)2000,35,2:1
16The analytical foundations of evolutionary economics: from biological analogy to economic self-organization显示文摘John Foster 1997Structural Change and Economic Dynamics1997,,10:1
17The Financialization of Accumulation 显示文摘John Bellamy Foster 2010Monthly Review Volume 62 Issue 05 (October)2010,2010,:1
18Temporal Onset of Hypoxia and Oxidative Stress After Pulmonary Irradiation显示文摘Katharina Fleckenstein Larisa Zgonjanin Liguang Chen Zahid Rabbani Isabel L. Jackson Bradley Thrasher John Kirkpatrick W. Michael Foster Zeljko Vujaskovic 2007International Journal of Radiation Oncology, Biology, Physics2007,,:1
19The Failures of Empire显示文摘Magdoff Harry and Foster John 2005Monthly Review2005,56,6:1
20Reallocation, tirm turnover, and efficiency: selection on productivity or profitability? 显示文摘Foster Lucia John Haltiwanger Chad Syverson 2008American Economic Review2008,98,1:1
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