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异步片上网络研究综述

计算机辅助设计与图形学学报 2012年第6期24卷 699-709页

作者：宋威 doug edwards School of Computer Science the University of ManchesterManchesterM13 9PL UK

异步片上网络具有低动态功耗、对延迟抖动的不敏感、统一的网络接口、较低的系统集成复杂度和较好的电磁兼容能力等众多特性,是下一代片上多核微处理器和多核片上系统的标准片上通信架构之一.在简单介绍异步电路的相关理论后,从多个方... 详细信息

异步片上网络具有低动态功耗、对延迟抖动的不敏感、统一的网络接口、较低的系统集成复杂度和较好的电磁兼容能力等众多特性,是下一代片上多核微处理器和多核片上系统的标准片上通信架构之一.在简单介绍异步电路的相关理论后,从多个方面概述了当前异步片上网络的研究成果,包括网络拓扑、同步?异步接口、流控制、服务质量、路由算法、低功耗设计、容错和可测性设计以及设计自动化;然后介绍并分析了一些具有代表性的异步片上网络设计案例.研究显示,异步片上网络具有众多同步片上网络所不具备的优点,大量的片上多核系统将使用异步片上网络作为其片上通信系统,但它们的易用性和网络性能亟待提高.

关键词：异步电路片上网络流控制低功耗容错

Precise dating of abrupt shifts in the Asian Monsoon during the last deglaciation based on stalagmite data from Yamen Cave, Guizhou Province, China

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Science China Earth Sciences 2010年第5期53卷 633-641页

作者： edwards R. Lawrence Department of Geology and Geophysics University of Minnesota

Based on 33 U/Th dates and 1020 oxygen isotopic data from stalagmite Y1 from Yamen Cave, Guizhou Province, China, a record of the Asian Summer Monsoon (ASM) was established. The record covers the last deglaciation and the early Holocene (from 16.2 to 7.3 ka BP) with an average oxygen isotope resolution of 9 years. The main millennial-scale deglacial events first identified in Greenland (Greenland Interstadial Events: GIS 1e through GIS 1a) and later in China are clearly present in the Y1 record. By analogy to earlier work, we refer to these as Chinese Interstadials (CIS): CIS A.1e to CIS A.1a. The onset of these events in Y1 δ18O records are nominally dated at: 14750±50, 14100±60, 13870±80, 13370±80, and 12990±80 a BP. The end of CIS A.1a or the beginning of the Younger Dryas (YD) event is nominally at 12850±50 a BP and the end of the YD dates to 11500±40 a BP. The δ18O values shift by close to 3‰ during the transition into the Bφlling-Allerφd (BA, the onset of CIS A.1e) and at the end of the YD. Comparisons of Y1 to previously published early Holocene records show no significant phase differences. Thus, the East Asia Monsoon and the Indian Monsoon do not appear to have been out of phase during this interval. The Y1 record confirms earlier work that suggested that solar insolation and North Atlantic climate both affect the Asian Monsoon.

关键词： stalagmite Asian Monsoon the last deglaciation Holocene U-series dating Yamen Cave

Anthropogenic Sulfate and Nitrate Signals in Snow from Bogda Glacier, Eastern Tianshan

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Journal of Earth Science 2011年第4期22卷 490-502页

作者：张晓宇 Ross edwards State Key Laboratory of Cryospheric Sciences/Tianshan Glaciological Station Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences Desert Research Institute Reno NV 89512-1095 USA Curtin University of Technology Bentley WA6102 Australia

A 1.2 m snow pit was recovered on July 29th, 2009 from the Bogda Glacier, eastern Tianshan （天山）. The sample site temperature of -9.6 12 indicates that the unique glaciochemical re- cord was well preserved and suitable for the reconstruction of air pollution levels in this previously un- explored region. Samples were analyzed for major ions （Na＋, K＋, Ca2＋, Mg2＋, NH4＋, Cl-, SO42-, NO3-, HCOO＇, and CHaCOO）. NO3 and SO42were characterized by significant high levels of pollution con- centration. Most air masses backward trajectories ending in December 2008 have passed the Urumqi City center, while some even traveled across the primary nuclear weapons testing venue of the former Soviet Union （STS）. The mean pH value of snow samples is coincident with the average value of Urumqi＇s aerosol, and the ratio of [NO3-]/[SO42-] in the snow pit generally agrees with the value of the Urumqi winter aerosols. In addition, the [HCOO]/[CH3COO] ratio of snow samples is only 0.7, lower than unity. These analyses indicate that SO42 and NO3in the Bogda Glacier are the result of anthropo- genic pollutions.

关键词： anthropogenic pollutions SO42- NO3.

A Roadmap for Whitefly Genomics Research:Lessons from Previous Insect Genome Projects

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Journal of Integrative Agriculture 2012年第2期11卷 269-280页

作者： Owain Rhys edwards Alexie Papanicolaou CSIRO Ecosystem Sciences WembleyWA 6913Australia CSIRO Ecosystem Sciences CanberraACT 2601Australia

Due to evolving molecular and informatics technologies,modern genome sequencing projects have more different characteristics than what most biologists have become accustomed to during the capillary-based sequencing *** this paper,we explore the characteristics that made past insect genome projects successful and place them in the context of next-generation *** taking into account the intricacies of whitefly biology and the community,we present a roadmap for whitefly-omics,which focuses on the formation of an international consortium,deployment of informatic platforms and realistic generation of reference sequence data.

关键词： whole genome sequencing next generation sequencing transcriptome genome consortium white paper

Complicated responses of stalagmite δ ^(13)C to climate change during the last glaciation from Hulu Cave, Nanjing,China

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Science China Earth Sciences 2005年第12期48卷 2174-2181页

作者： R. L. edwards Department of Geology and Geophysics University of Minnesota MN 55455 USA

We present a record on carbon stable isotopic composition (δ 13C), covering 75 through 10 thousands years ago (ka B.P.), from Hulu Cave, Nanjing. The overlapping δ 13C pro-files are very similar in pattern and range, indicating that they mainly record climatic signal. Dur-ing the last glacial-interglacial transition, the >6‰ change of δ 13C values implies different con-tributions of C3 vs. C4 type plants in soils. On millennial scale, however, the increased calcite δ 13C during the warm Dansgaard-Oeschger (DO) events suggests a decrease of dissolved bio-genic CO2 when water flux rate through soil is large. This correlation between heavier δ 13C and higher precipitation is consistent with our previous report on the samples’ stable oxygen isotope records (Wang et al., 2001). Comparison of coeval δ 13C and δ 18O of stalagmites indicates that kinetic fractionation of carbon isotope is closely related to growth rate of stalagmites. This study also shows that local vegetation changes may lag behind precipitation changes by ~700 years during the deglaciation.

关键词： Hulu Cave stalagmite δ 13C last glacial period.

An exceptionally strengthened East Asian summer monsoon event between 19.9 and 17.1 ka BP recorded in a Hulu stalagmite

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Science China Earth Sciences 2009年第3期52卷 360-368页

作者： L. R. edwards Department of Geology and Geophysics University of Minnesota Minneapolis

A stalagmite-based isotope record (No. H82) from Nanjing Hulu Cave, spanning from 16.5 to 10.3 ka BP, provided strong evidence for a coherence relation between the East Asian summer monsoon (EASM) and the North Atlant... 详细信息

关键词： Nanjing Hulu Cave stalagmite East Asian summer monsoon event

Unstructured kinetic models to simulate an arabinose switch that decouples cell growth from metabolite production

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Synthetic and Systems Biotechnology 2020年第3期5卷 222-229页

作者： Harley edwards Peng Xu Department of Chemical Biochemical and Environmental EngineeringUniversity of Maryland Baltimore CountyBaltimoreMD21250USA

Modeling synthetic gene circuits to implement dynamic flux balancing is crucial in teaching and exploring metabolic engineering strategies to repartition metabolic precursors and construct efficient microbial cell *** fitness and production rates are often complex phenotypes that are governed by highly nonlinear,multivariable functions which are intrinsically linked through carbon *** solution of such dynamic system can be difficult for synthetic biologists to visualize or ***,researchers(Santala et al.,***.,2018)have implemented an arabinose based genetic switch to dynamically partition the central carbon flux between cell growth and product *** autonomous switch allowed dynamic shift from arabinose-associated cell growth to acetate-associated product(wax ester)*** system clearly demonstrates the effectiveness of using a genetic switch to decouple cell growth from product formation in a one-pot bioreactor to minimize operational *** with Michaelis-Menten kinetics,and Luedeking-Piret equations,we were able to reconstruct and analyze this metabolic switch in silica and achieved graphical solutions that qualitatively match with the experimental *** assessing physiologically-accessible parameter space,we observed a wide range of dynamic behavior and examined the different limiting *** solutions for this dynamic system can be viewed simultaneously and resolved in real time via buttons on the graphical user interface(GUI).Metabolic bottlenecks in the system can be accurately predicted by varying the respective rate *** GUI serves as a diagnosis toolkit to troubleshoot genetic circuits design constraints and as an interactive workflow of using this arabinose based genetic switch to dynamically control carbon flux,which may provide a valuable computational toolbox for metabolic engineers and synthetic biologists to simulate and understand complex genetic-metabol

关键词： Metabolic switches Biophysical models Dynamic control Metabolic engineering Central carbon flux Intelligent biomanufacturing Green chemistry

Mesoscience: exploring the common principle at mesoscales

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National Science Review 2018年第3期5卷 321-326页

作者： Wenlai Huang Jinghai Li Peter P.edwards State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Department of Chemistry University of Oxford

BACKGROUND OF THE EMERGING MESOSCIENCE In studying a complex system in science,engineering or society,we usually observe its macroscale(system-scale)behavior first,then go deep into mechanisms at the microscale(unit-scale)and finally try to correlate these two scales to reach a complete ***,it is increasingly recognized that correlating these two scales is quite difficult,and some common principles are inevitably missing in between these two extrema[1,2].

关键词： Mesoscience exploring the common principle at mesoscales

Measuring Natural Hazard-Related Disasters through Self-Reports

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International Journal of Disaster Risk Science 2021年第4期12卷 540-552页

作者： Ben edwards Matthew Gray Judith B.Borja Centre for Social Research and Methods Australian National UniversityCanberra2601Australia University of San Carlos–Office of Population Studies Foundation Inc.(USC-OPS)6000Cebu CityPhilippines

Exposure to multiple natural hazard-related disasters will become more common due to climate *** article reports on the development and validation of a cumulative measure of exposure to natural hazard-related disasters(2013–2017)at the area level,and an individual-level measure of disaster impact using data from the Longitudinal Cohort Study on the Filipino Child and linked data from the International Disaster Database(EM-DAT).Caregiver reports of cumulative exposure to disasters had statistically significant associations with disasters reported by neighborhood officials and with disasters in *** ecometric techniques we generated a reliable community average measure of exposure to natural hazard-related *** on neighbor but not individual self-reports this exogenous measure of disaster exposure in the local area was more strongly related to EM-DAT and official neighborhood reports than individual *** capture household variation we developed an individual-level measure of disaster *** impact was associated with measures of exposure(individual and community average),community ratings by officials,and EM-DAT but only moderately associated with the community average *** the community average and disaster impacts measures were associated with household income and the adequacy of income in households.

关键词： Disaster exposure Measuring disasters Philippines Socioeconomic impacts Social surveys Subjective indicators