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Evaluation of NASA GISS Post-CMIP5 Single Column Model Simulated Clouds and Precipitation Using ArM Southern Great Plains Observations

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Advances in Atmospheric Sciences 2017年第3期34卷 306-320页

作者： Lei ZHANG Xiquan DONG Aaron kennedy Baike XI Zhanqing LI College of Global Change and Earth System Science Beijing Normal University Department of Atmospheric and Oceanic Sciences University of MarylandCollege Park Department of Atmospheric Sciences University of North Dakota

The planetary boundary layer turbulence and moist convection parameterizations have been modified recently in the NASA Goddard Institute for Space Studies （GISS） Model E2 atmospheric general circulation model （GCM; post-CMIP5, hereafter P5）. In this study, single column model （SCM_P5） simulated cloud fractions （CFs）, cloud liquid water paths （LWPs） and precipitation were compared with Atmospheric radiation Measurement （ArM） Southern Great Plains （SGP） groundbased observations made during the period 2002-08. CMIP5 SCM simulations and GCM outputs over the ArM SGP region were also used in the comparison to identify whether the causes of cloud and precipitation biases resulted from either the physical parameterization or the dynamic scheme. The comparison showed that the CMIP5 SCM has difficulties in simulating the vertical structure and seasonal variation of low-level clouds. The new scheme implemented in the turbulence parameterization led to significantly improved cloud simulations in P5. It was found that the SCM is sensitive to the relaxation time scale. When the relaxation time increased from 3 to 24 h, SCM_P5-simulated CFs and LWPs showed a moderate increase （10%-20%） but precipitation increased significantly （56%）, which agreed better with observations despite the less accurate atmospheric state. Annual averages among the GCM and SCM simulations were almost the same, but their respective seasonal variations were out of phase. This suggests that the same physical cloud parameterization can generate similar statistical results over a long time period, but different dynamics drive the differences in seasonal variations. This study can potentially provide guidance for the further development of the GISS model.

关键词： single column model model evaluation cloud fraction turbulence parameterization

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relationship between the exocrine and endocrine pancreas after acute pancreatitis

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World Journal of Gastroenterology 2014年第45期20卷 17196-17205页

作者： Stephanie L M Das James I C kennedy rinki Murphy Anthony r J Phillips John A Windsor Maxim S Petrov Department of Surgery University of Auckland Department of Medicine University of Auckland

AIM: To determine the prevalence and time course of pancreatic exocrine insufficiency in individuals with newly diagnosed prediabetes or diabetes mellitus after acute pancreatitis.

关键词： Pancreatogenic diabetes Pancreatic exocrine insufficiency Acute pancreatitis Endocrine insufficiency

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Electromagnetically Modified Filtration of Liquid Aluminium With a Ceramic Foam Filter

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Journal of Iron and Steel research International 2012年第S1期19卷 72-76页

作者： r.Fritzsch M W kennedy S Akhtar J A Bakken r E Aune Department of Materials Science and Engineering Norwegian University of Science and Technology Hydro Aluminium Karm y Havik 4265Norway Department of Materials Science and Engineering Royal Institute of TechnologyStockholm 10044Sweden

Conventional Ceramic Foam Filter(CFF)technology has some difficulties in removing fine particulates(e.g.<20 μm)from liquid *** the present work the filtration behaviour of 30,50 and 80 ppi CFF filters have been studi... 详细信息

Conventional Ceramic Foam Filter(CFF)technology has some difficulties in removing fine particulates(e.g.rom liquid *** the present work the filtration behaviour of 30,50 and 80 ppi CFF filters have been studied in the presence of magnetic fields in the range of 0.06-0.2T,produced by induction coils operated at 50 Hz. A feed recipe containing 90 wt.%of the aluminium alloy A356 doped with 10 wt.%A356 composite,containing 15 wt% SiC particles with a particle size ranging from 13 to 23 μm,was *** the results obtained for the experiments conducted under the influence of a magnetic field where compared with similar reference gravity filtration experiments profound changes were observed in the distribution of particulates within,over and below the *** improvements in the wetting behaviour of the liquid metal to the CFF surface were also *** is believed that a successful change in filtration mechanisms is obtained as a result of the presence of the Lorentz forces and the metal recirculation produced by the magnetic *** magnitude of the Lorentz forces,*** magnetic pressure,are in the present work discussed in relation to the filtration results,and quantified based on experimental data and validated 2D axial symmetric Finite Element Modelling(FEM).

关键词： electromagnetic filtration Ceramic Foam Filter

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Impacts of long-term land-use changes on herd size and mobility among pastoral households in Amboseli ecosystem,Kenya

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Ecological Processes 2018年第1期7卷 32-40页

作者： kennedy Sakimba Kimiti David Western Judith Syombua Mbau Oliver Vivian Wasonga Department of Land resource Management and Agricultural Technology University of Nairobi P.O Box 30197NairobiKenya Amboseli Conservation Project P.O Box 15289Nairobi 00509Kenya

Introduction:Long-term changes in rangeland ecosystems of the world have impacted on the livestock production,a key livelihood strategy in these *** paper presents perceptions of the pastoral community on the dynamics of pastoral livelihoods under three land-use types namely nomadic,semi-nomadic,and sedentary in Amboseli ecosystem located in southern *** questionnaire was used to collect data concerning household livestock herds,perceived livestock trends and their causes,importance of migration,sedentarization,and land subdivision,and were administered to respondents randomly selected from the three land-use ***:The study shows that the livestock herd size was higher in nomadic(117.1)and lower in sedentary(56.6)land-use *** majority of the respondents in nomadic(79%),semi-nomadic(73%),and sedentary(64%)reported a declining trend in household herd *** declines were mostly attributed to recurrent droughts and loss of grazing ***:Pastoralism remains an important livelihood strategy to majority of households in the study area;therefore,to achieve sustainable livelihood strategies,grazing lands should be maintained.

关键词： Herd mobility Household livestock trends rangeland changes Community views

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The potential of small molecule brain-derived neurotrophic factor: mimetics to treat inherited retinal degeneration

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Neural regeneration research 2019年第1期14卷 85-86页

作者： Andrea Cerquone Perpetuini Justine Mathoux Breandán N.kennedy School of Biomolecular & Biomedical Science Conway Institute University College Dublin

Is there a need for small molecule neuroprotectants in inherited retinal degeneration(irDs)?irDs are a heterogeneous cluster of diseases which lead to blindness in 1 in every 2–3000 people.A plethora of causative genetic defects were revealed in the last *** research focuses on development of pharmacological,biological or mechanical implant ***

关键词：小分子神经营养退化大脑膜基因植入生物

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基于杂波特性的自动跟踪起始试验统计方法(英文)

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自动化学报 2008年第3期34卷 266-273页

作者： kennedy Hugh Lachlan Taranaki road Edinburgh ParksEdinburgh SA 5111Australia

二测试统计基于喧嚷特征被导出。一试验当 track-is-on- 喧嚷假设被拒绝时，轨道被证实。当空假设的假设是真的时，一个常数和已知的假轨道率结果。第一个测试统计数值基于喧嚷密度。当到最近的目标山峰的期望的距离是时，目标察觉的高... 详细信息

二测试统计基于喧嚷特征被导出。一试验当 track-is-on- 喧嚷假设被拒绝时，轨道被证实。当空假设的假设是真的时，一个常数和已知的假轨道率结果。第一个测试统计数值基于喧嚷密度。当到最近的目标山峰的期望的距离是时，目标察觉的高可能性被结果不到期望的距离到最近的喧嚷山峰。第二个测试统计数值基于喧嚷振幅。当目标山峰的期望的振幅比喧嚷山峰的期望的振幅大时，目标察觉的高可能性被结果。基于喧嚷的测试统计的行为与目标可见性方法相比，用模仿的数据。所有轨道开始方法基于概率的数据协会(PDA ) 用轨道 updater 被使用，延长了合并山峰振幅信息，它是可得到的。

关键词：自动跟踪开始检验统计量干扰跟踪滤波器跟踪检测随机数据丛

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Explaining Hong Kong Students’International Achievement in Civic Learning

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Frontiers of Education in China 2016年第3期11卷 299-321页

作者： Kerry J.kennedy LI Lijuan Centre for Governance and Citizenship The Education University of Hong KongHong KongChina Faculty of Education The University of JohannesburgJohannesburgSouth Africa

This study identifies predictors of Hong Kong students’civic *** has adopted a cross-sectional quantitative design using secondary data from the 2009 International Civics and Citizenship Education Study(ICCS 2009;Schulz et al.,2010).Multi-level analysis reveals that most of the variance in student achievement can be accounted for by school level rather than individual level *** background variables are largely insignificant suggesting the resilience of many Hong Kong *** Hong Kong students’achievements in civic learning,a possible explanation is made and implications are developed for both theory and practice.

关键词： political socialization civic learning agents school context multi-level analysis

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Water vapor δD dynamics over China derived from SCIAMACHY satellite measurements

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Science China Earth Sciences 2014年第4期57卷 813-823页

作者： LIU ZhongFang Kei YOSHIMUrA Casey D.kennedy WANG XinHui PANG ShuoGuang Tianjin Key Laboratory of Water resource and Environment Tianjin Normal University Atmosphere and Ocean research Institute University of Tokyo United States Department of Agriculture Agricultural Research ServicePasture Systems and Watershed Management Research UnitEast WarehamMA 02538USA

This study investigates water vapor isotopic patterns and controls over China using high-quality water vapor δD data retrieved from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography （SCIAMACHY） observations. The results show that water vapor δD values on both annual and seasonal time-scales broadly exhibit a continental effect, with values largely decreasing northwestward from coastal lowlands to high-elevation mountainous regions. However, region-specific analysis reveals spatially distinct patterns of water vapor dD between seasons. In the monsoon domain （e.g., China south of 35~N）, depletion in D in the summer and fall seasons is closely tied to monsoon moisture sources （the Indian and Pacific oceans） and subsequent amount effect, but higher 8D values in winter and spring are a result of isotopically-enriched conti- nental-sourced moisture proceeded by less rainout. In contrast, farther inland in China （non-monsoon domain）, moisture is de- rived overwhelmingly from the dry continental air masses and local evaporation, and 8D values are largely controlled by the temperature effect, exhibiting a seasonality with isotopically enriched summer and depleted winter/spring. The observation that the spatial pattern of water vapor δD is the opposite to that of precipitation δD in the summer season also suggests that partial evaporation of falling raindrops is a key driver of water vapor isotope in the non-monsoon domain. This study highlights the importance of non-rayleigh factors in governing water vapor isotope, and provides constraints on precipitation isotope inter- pretation and modern isotope hydrological processes over China.

关键词： water vapor δD moisture sources evapotranspiration droplet evaporation China

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The Global Boundary Stratotype Section and Point for the base of the Turonian Stage of the Cretaceous： Pueblo, Colorado, U.S.A.

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Episodes 2005年第2期28卷 93-104页

作者： W.J.kennedy I.Walaszczyk W.A.Cobban GeologicalCollections OxfordUniversityMuseumofNaturalHistoryParksRoadOxfordOXl3PWUnitedKingdom InstituteofGeologyoftheUniversityofWarsaw A1.ZwirkiIWigury9302-089WarszawaPoland 70EstesStreet LakewoodColorado80226USA

Following the recommendation of the International Commission on Stratigraphy (16 votes Yes [94%], 1 abstention, 2 votes not received), the Global boundary Stratotype Section and Point (GSSP) for the base of the Turonian Stage of the Cretaceous System is defined as the base of bed 86 of the Bridge Creek Limestone Member of the Greenhorn Limestone Formation at the western end of the Denver and rio Grande railroad cut near the north boundary of the Pueblo reservoir State Park recreation Area, west of Pueblo, Colorado, USA. This GSSP horizon is also exposed and protected in the adjacent state recreation area. It coincides with the first occurrence of the ammonite Watinoceras devonense, is in the middle of a global positive excursion in Carbon-13 isotopes, and is bracketed by widespread bentonites that have yield edages of 93 to 93.5 Ma.

关键词：土仑统白垩纪美国地质分层研究科罗拉多州

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Antiparasitic Sesquiterpenes from the Cameroonian Spice Scleria striatinux and Preliminary In Vitro and In Silico DMPK Assessment

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Natural Products and Bioprospecting 2017年第3期7卷 235-247页

作者： kennedy D.Nyongbela Fidele Ntie-Kang Thomas r.Hoye Simon M.N.Efange Pharmacochemistry research Group Department of ChemistryUniversity of BueaP.O.Box 63BueaCameroon Department of Chemistry University of Minnesota207 Pleasant StreetSEMinneapolisMNUSA Chemical and Bioactivity Information Centre Department of ChemistryUniversity of BueaP.O.Box 63BueaCameroon

We are grateful for financial support from the International Cooperative Biodiversity Groups(ICBG),a program of the Fogarty International Centre of the National Institutes of Health(NIH),USA through grant(no TW00327)awarded to Professor *** and Medicines for Malaria Venture(MMV),Geneva,*** US Fulbright Council for International Exchange of Scholars(CIES)is acknowledged for grant to kennedy *** to carry-out research at the University of *** wish to thank *** and *** from the Centre for Drug Candidate Optimisation(CDCO),Monash University for the DMPK *** Ntie-Kang is currently a Georg Forster fellow of the Alexander von Humboldt Foundation,*** are equally grateful to Schro¨dinger *** the academic license to use the QikProp software.

关键词： Sesquiterpenes Pharmacokinetics Drug metabolism Scleria striatinux

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