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超宽带雷达探测隐身飞机的潜力

空天技术 1990年第4期 33-36+61页

作者： William b.scott 郭福涛

随着隐身飞机的出现而出现了反隐身技术。是重点发展隐身飞机还是重点发展反隐身的雷达技术,文中谈了美国军方、工业界和国会议员在此问题上的争议。全文重点讨论超宽带雷达探测隐身飞机和雷达反射截面很小的非隐身掠海飞行导弹的巨大潜... 详细信息

随着隐身飞机的出现而出现了反隐身技术。是重点发展隐身飞机还是重点发展反隐身的雷达技术,文中谈了美国军方、工业界和国会议员在此问题上的争议。全文重点讨论超宽带雷达探测隐身飞机和雷达反射截面很小的非隐身掠海飞行导弹的巨大潜力,介绍美国目前研究宽带雷达的研究机构、研究现状、遇到的难题、取得的进展、科学家的新思维。美国空军主任科学家罗伯特·w·塞尔登认为,对抗隐身飞机的关键是雷达网络加计算机的进步。

关键词：隐身飞机雷达电子对抗

Identifying the impediments and enablers of ecohealth for a case study on health and environmental sanitation in Hà Nam, Vietnam

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Infectious Diseases of Poverty 2014年第1期3卷 325-337页

作者： Vi Nguyen Hung Nguyen-Viet Phuc Pham-Duc Craig Stephen scott A McEwen Department of Population Medicine Ontario Veterinary CollegeUniversity of Guelph2509 Stewart Building(#45)Guelph N1G 2W1ONCanada Public Health Risk Sciences Division Laboratory for Foodborne ZoonosesPublic Health Agency of Canada160 Research LaneUnit 206GuelphON N1G 5B2Canada Center for Public Health and Ecosystem Research Hanoi School of Public Health(HSPH)138 Giang Vo StreetHanoiVietnam Swiss Tropical and Public Health Institute(Swiss TPH) and International Livestock Research Institute(ILRI)Socinstrasse 57CH-4002 BaselSwitzerland and HanoiVietnam Swiss Federal Institute of Aquatic Science and Technology(ESWAG) Sandec–Department of Water and Sanitation in Developing CountriesP.O.BoxCH-8600DübendorfSwitzerland Department of Ecosystem and Public Health Faculty of Veterinary MedicineUniversity of CalgaryTRW 2D263280 Hospital DriveNWCalgaryAlberta T2N 4Z6Canada Centre for Coastal Health 900 Fifth StreetNanaimoBritish Columbia V9R 5S5Canada

background:To date,research has shown an increasing use of the term“ecohealth”in literature,but few researchers have explicitly described how it has been *** investigated a project on health and environmental sanitation(the conceptual framework of which included the pillars of ecohealth)to identify the impediments and enablers of ecohealth and investigate how it can move from concept to ***:A case study approach was *** interview questions were centred on the nature of interactions and the sharing of information between ***:The analysis identified nine impediments and 15 enablers of *** themes relating to impediments,in particular-integration is not clear,don’t understand,and limited participation-related more directly to the challenges in applying the ecohealth pillars of transdisciplinarity and *** themes relating to enablers-awareness and understanding,capacity development,and interactions-facilitated usage of the research *** extracting information on the environmental,social,economic,and health aspects of environmental sanitation,we found that the issue spanned multiple scales and ***:The challenge of how to integrate these aspects should be considered at the design stage and throughout the research *** recommend that ecohealth research teams include a self-investigation of their processes in order to facilitate a comparison of moving from concept to practice,which may offer insights into how to evaluate the process.

关键词： Ecohealth Evaluation Health Sanitation Case study Vietnam

Numerical modelling of flow and transport in rough fractures

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Journal of Rock Mechanics and Geotechnical Engineering 2014年第6期6卷 535-545页

作者： scott briggs bryan W.Karney brent E.Sleep University of Toronto Toronto M5S 1A4 Canada

Simulation of flow and transport through rough walled rock fractures is investigated using the latticeboltzmann method （LbM） and random walk （RW）, respectively. The numerical implementation isdeveloped and validated on general purpose graphic processing units （GPGPUs）. both the LbM and RWmethod are well suited to parallel implementation on GPGPUs because they require only next-neighbourcommunication and thus can reduce expenses. The LbM model is an order of magnitude faster onGPGPUs than published results for LbM simulations run on modern CPUs. The fluid model is verified forparallel plate flow, backward facing step and single fracture flow; and the RWmodel is verified for pointsourcediffusion, Taylor-Aris dispersion and breakthrough behaviour in a single fracture. both algorithmsplace limitations on the discrete displacement of fluid or particle transport per time step to minimise thenumerical error that must be considered during implementation. 2014 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting byElsevier b.V. All rights reserved.

关键词： Hydrogeology Fracture flow Solute transport Computational fluid dynamics Lattice boltzmann method(LbM) Random walk(RW)

Sedentary behavior Research Network members support new Canadian 24-Hour Movement Guideline recommendations

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Journal of Sport and Health Science 2020年第6期9卷 479-481页

作者： Mark S.Tremblay scott Rollo Travis J.Saunders Healthy Active Living and Obesity Research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaONK1H 8L1Canada Department of Pediatrics Faculty of MedicineUniversity of OttawaOttawaONK1H 8M5Canada Department of Health Sciences Carleton UniversityOttawaONK1S 5B6Canada Department of Applied Human Sciences University of Prince Edward IslandCharlottetownPEIC1A 4P3Canada

A new paradigm employing 24-h movement guidelines that combines recommendations for movement behaviors across the whole day(physical activities of all intensities,sedentary behaviors,and sleep)is gaining momentum around the globe,and several jurisdictions are developing and releasing evidence-informed public health guidelines embracing this approach.1,2 The Sedentary behavior Research Network(SbRN),the world’s largest network of researchers and health professionals focusing specifically on the health impact of sedentary behaviors,embraces this new paradigm and has worked to normalize the integration of sedentary behaviors into the movement-behavior paradigm.

关键词： movement den behavior

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小麦体内镁的分布

国外农学（麦类作物） 1992年第5期 29-30页

作者： b.J.scott 莫治雄

本试验研究了Mg在小麦体内的分布及其再分布,以便建立小麦缺镁的诊断方法。在2种营养液中培养小麦,一种营养液稳定供给Mg(0、5、10、20、40、80、160μM Mg),另一种中断供给Mg(从40和160μM减少到0)。当试验施Mg停止时,老叶的Mg减少。但... 详细信息

本试验研究了Mg在小麦体内的分布及其再分布,以便建立小麦缺镁的诊断方法。在2种营养液中培养小麦,一种营养液稳定供给Mg(0、5、10、20、40、80、160μM Mg),另一种中断供给Mg(从40和160μM减少到0)。当试验施Mg停止时,老叶的Mg减少。但是,在稳定供给但不足的情况下,嫩叶首先出现镁缺乏症状,这些结果与以前报道相反。嫩叶的Mg浓度也比老叶低,不管叶龄的大小,如果叶组织的Mg浓度b)的为861μg/g。在可测量的茎重降低之前,嫩叶已出现缺Mg症状。YEb和全茎的Mg浓度与营养液Mg浓度的相关性比老叶的好。

关键词：小麦镁分布

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CEO在领导公司变革中的作用

财务与会计 2007年第24期 60-61页

作者： Carolyn b.Aiken scott P.Keler

在当今的商业环境下,公司不能仅仅满足于渐进式的改进工作,必须要定期进行业绩变革,以达到并保持领先的竞争地位。业绩变革人人有责,CEO的特殊之处在于,其位于公司顶端,如果不从思想和行为上发挥表率作用,或是不采取关键的变革举措,变... 详细信息

在当今的商业环境下,公司不能仅仅满足于渐进式的改进工作,必须要定期进行业绩变革,以达到并保持领先的竞争地位。业绩变革人人有责,CEO的特殊之处在于,其位于公司顶端,如果不从思想和行为上发挥表率作用,或是不采取关键的变革举措,变革工作将失去重心。使变革更有意义

关键词： CEO 业绩团队成员雇员

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区域麻醉与手术併发症

国外医学（外科学分册） 1989年第3期16卷 158-160页

作者： scott N b Kehlet H 潘耀东

近年来对手术和麻醉引起机体代谢变化已有较深入的了解,并认为手术的某些不良反应不应完全归咎于围术期某项操作技术本身,而须要考虑手术创伤后分解代谢亢进造成机体需求的剧增。为此,曾有过无应激麻醉(Stress—free anaesthesia)的设想... 详细信息

近年来对手术和麻醉引起机体代谢变化已有较深入的了解,并认为手术的某些不良反应不应完全归咎于围术期某项操作技术本身,而须要考虑手术创伤后分解代谢亢进造成机体需求的剧增。为此,曾有过无应激麻醉(Stress—free anaesthesia)的设想,并认为采取某些措施,改变机体的这些反应,保持各脏器的功能,则有可能减轻手术引起的某些病态,也可能减少术后并发症。

关键词：区域麻醉手术并发症肺心脏肠

Designing healthy communities： A walkability analysis of LEED-ND

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Frontiers of Architectural Research 2016年第4期5卷 433-452页

作者： Adriana A. Zuniga-Teran barron J. Orr Randy H. Gimblett Nader V. Chalfoun scott b. Going David P. Guertin Stuart E. Marsh Udall Center for Studies in Public Policy University of Arizona Tucson AZ 85719 USA

Prevailing city design in many countries has created sedentary societies that depend on automobile use. Consequently, architects, urban designers, and land planners have developed new urban design theories, which have been incorporated into the Leadership in Energy and Environmental Design for Neighborhood Development （LEED-ND） certification system. The LEED- ND includes design elements that improve human well-being by facilitating walking and biking, a concept known as walkability. Despite these positive developments, relevant research findings from other fields of study have not been fully integrated into the LEED-ND. According to Zuniga-Teran （2015）, relevant walkability research findings from multiple disciplines were organized into a walkability framework （WF） that organizes design elements related to physical activity into nine categories, namely, connectivity, land use, density, traffic safety, surveil- lance, parking, experience, greenspace, and community. In this study, we analyze walkability in the LEED-ND through the lens of the nine WF categories. Through quantitative and qualitative analyses, we identify gaps and strengths in the LEED-ND and propose potential enhancements to this certification system that reflects what is known about enhancing walkability more comprehensively through neighborhood design analysis. This work seeks to facilitate the translation of research into practice, which can ultimately lead to more active and healthier societies.

关键词： Watkabitity LEED-ND Physical activity Urban design Well-being built environment

Designing healthy communities： Testing the walkability model

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Frontiers of Architectural Research 2017年第1期6卷 63-73页

作者： Adriana A. Zuniga-Teran barron J. Orr Randy H. Gimblett Nader V. Chalfoun Stuart E. Marsh David P. Guertin scott b. Going Udall Center for Studies in Public Policy University of Arizona Tucson AZ 85719 USA

Research from multiple domains has provided insights into how neighborhood design can be improved to have a more favorable effect on physical activity, a concept known as walkability. The relevant research findings/hypotheses have been integrated into a Walkability Framework, which organizes the design elements into nine walkability categories. The purpose of this study was to test whether this conceptual framework can be used as a model to measure the interactions between the built environment and physical activity. We explored correlations between the walkability categories and physical activity reported through a survey of residents of Tucson, Arizona （n=486）. The results include significant correlations between the walkability categories and physical activity as well as between the walkabi[ity categories and the two motivations for walking （recreation and transportation）. To our knowledge, this is the first study that reports links between wa[kability and walking for recreation. Additionally, the use of the Walkability Framework allowed us to identify the walkability categories most strongly correlated with the two motivations for walking. The results of this study support the use of the Walkability Framework as a model to measure the built environment in relation to its ability to promote physical activity.

关键词： Watkability Physical activity buitt environment LEED-ND Neighborhood design