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Novel ecosystems created by coal mines in central Queensland’s Bowen Basin

Ecological Processes 2013年第1期2卷 368-379页

作者： Peter D Erskine andrew t fletcher Centre for Mined Land Rehabilitation The University of QueenslandBrisbane QLD 4072Australia

Introduction:Open-cut coal mining began in central Queensland’s Bowen Basin approximately 50 years *** this period of time,mine rehabilitators have used a variety of tree,shrub,and groundcover species to create‘novel ecosystems’to stabilise soils and provide vegetative cover for pre-supposed final end-land *** examine post-mining rehabilitation from multiple soil and vegetation monitoring activities in the Bowen Basin to assess the similarity of landforms,plant composition,and trends in plant diversity compared to unmined reference ***:Rehabilitated spoil dumps and reference sites were assessed using soil and vegetation data contained in compliance monitoring reports from Goonyella Riverside,Moura,Oaky Creek,Rolleston,and Blackwater ***,soil chemistry,and plant species mixes of rehabilitation aged from 2 to 22 years were compared to selected reference ***:Mines in this region have generally proposed one of two post-rehabilitation end-land uses:either pasture for cattle grazing or reconstructed native communities which potentially provide native fauna *** data from a selection of these mine sites suggest that when their rehabilitation was compared to nearby reference sites median slope values were between 2.5 and 7 times steeper and soil pH,electrical conductivity,and phosphorus levels were significantly *** steeply sloped landforms,poor soil characteristics,depauperate native species pool,and uniform presence of exotic pasture grasses in the rehabilitation indicate that most of these newly created ecosystems should not be used for cattle grazing and also have few natural ***:Legislative and community expectations have changed progressively over time and,although much of the rehabilitation is currently dominated by an assemblage of exotic buffel grass(Cenchrus ciliaris)and Acacia spp.,recent environmental authorities suggest these‘novel ecosystems’will be judged against native refere

关键词： Coal mining Completion criteria Environmental conditions Novel ecosystems

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the trxG protein ULt1 regulates Arabidopsis organ size by interacting with tCP14/15 to antagonize the LIM peptidase DA1 for H3K4me3 on target genes

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Plant Communications 2024年第4期5卷 255-274页

作者： Fan Xu Huixue Dong Weijun Guo Liang Le Yexing Jing Jennifer C.fletcher Jiaqiang Sun Li Pu Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Department of Plant and Microbial Biology University of CaliforniaBerkeleyBerkeleyCA 94720USA Plant Gene Expression Center United States Department of Agriculture-Agricultural Research ServiceAlbanyCA 94710USA these authors contributed equally to this article

Plant organ size is an important agronomic trait that makes a significant contribution to plant *** its central importance,the genetic and molecular mechanisms underlying organ size control remain to be fully ***,we report that the trithorax group protein ULtRAPEtALA1(ULt1)interacts with the tEOSINtE BRANCHED1/CYCLOIDEA/PCF14/15(tCP14/15)transcription factors by antagonizing the LIN-11,ISL-1,and MEC-3(LIM)peptidase DA1,thereby regulating organ size in *** of ULt1 function significantly increases rosette leaf,petal,silique,and seed size,whereas overexpression of ULt1 results in reduced organ ***1 associates with tCP14 and tCP15 to co-regulate cell size by affecting cellular *** analysis revealed that ULt1 and tCP14/15 regulate common target genes involved in endoreduplication and leaf ***1 can be recruited by tCP14/15 to promote lysine 4 of histone H3 trimethylation at target genes,activating their expression to determinefinal cell ***,we found that ULt1 influences the interaction of DA1 and tCP14/15 and antagonizes the effect of DA1 on tCP14/15 ***,ourfindings reveal a novel epigenetic mechanism underlying the regulation of organ size in Arabidopsis.

关键词： ULt1 tCP DA1 organ size endoreduplication

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Real time thermal Image Based Machine Learning Approach for Early Collision Avoidance System of Snowplows

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Journal of Intelligent Learning Systems and Applications 2024年第2期16卷 107-142页

作者： fletcher Wadsworth Suresh S. Muknahallipatna Khaled Ksaibati Department of Electrical Engineering and Computer Science University of Wyoming Laramie WY USA Department of Civil and Architectural Engineering University of Wyoming Laramie WY USA

In an effort to reduce vehicle collisions with snowplows in poor weather conditions, this paper details the development of a real time thermal image based machine learning approach to an early collision avoidance system for snowplows, which intends to detect and estimate the distance of trailing vehicles. Due to the operational conditions of snowplows, which include heavy-blowing snow, traditional optical sensors like LiDAR and visible spectrum cameras have reduced effectiveness in detecting objects in such environments. thus, we propose using a thermal infrared camera as the primary sensor along with machine learning algorithms. First, we curate a large dataset of thermal images of vehicles in heavy snow conditions. Using the curated dataset, two machine-learning models based on the modified ResNet architectures were trained to detect and estimate the trailing vehicle distance using real-time thermal images. the trained detection network was capable of detecting trailing vehicles 99.0% of the time at 1500.0 ft distance from the snowplow. the trained trailing distance network was capable of estimating distance with an average estimation error of 10.70 ft. the inference performance of the trained models is discussed, along with the interpretation of the performance.

关键词： Convolutional Neural Networks Residual Networks Object Detection Image Processing thermal Imaging

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网络安全事件管理和响应指南

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中国教育网络 2024年第2期 76-77页

作者： Christine Whalley Matt Kenslea Asha Ramachandra Steve fletcher 董明(译) 不详

确保整个团队了解要采取什么行动,可以对机构如何以及多快地从一个安全事件中恢复产生重要影响事件管理和响应是任何网络安全计划的关键要素。每一个事件都提供了教训和改进的机会,高等教育领导者永远不应该假设类似的事件不会再次发生... 详细信息

确保整个团队了解要采取什么行动,可以对机构如何以及多快地从一个安全事件中恢复产生重要影响事件管理和响应是任何网络安全计划的关键要素。每一个事件都提供了教训和改进的机会,高等教育领导者永远不应该假设类似的事件不会再次发生。本指南涵盖了在事件发生之前、期间和之后应该做些什么,以确保机构通过有效的响应、恢复和持续改进保持更好的弹性。事件发生前制定事件响应计划:制定详细的事件响应计划,概述检测过程、报告和响应安全事件的程序。

关键词：事件响应安全事件检测过程高等教育持续改进关键要素指南网络安全计划

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Abnormal ACt in a Patient with Prekallikrein Deficiency Undergoing Cardiopulmonary Bypass

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Open Journal of Anesthesiology 2024年第5期14卷 145-149页

作者： Maria R. Fuertes Naila Ahmad Orlando Perez-Franco andrew Oster Marion Svendrowski Pin Yue Department of Anesthesiology and Critical Care Saint Louis University School of Medicine St. Louis MO USA

Prekallikrein deficiency is a disorder that often remains undiagnosed. Prekallikrein activates factor XII, which initiates the intrinsic coagulation pathway. Prekallikrein deficiency results in prolonged Partial thromboplastin time and Activated Clotting time in absence of anticoagulants or active bleeding. this case report describes the anesthesia management of a patient with Prekallikrein deficiency who underwent cardiac surgery with Cardiopulmonary Bypass for correction of a congenital cardiac malformation. We highlight the importance of understanding the different tests available for the diagnosis of coagulation factors deficiency during administration of heparin in the setting of cardiovascular procedures under general anesthesia.

关键词： Prekallikrein Deficiency fletcher Factor Deficiency Cardiopulmonary Bypass Congenital Cardiac Malformation

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Evidence for fine-scale habitat specialisation in an invasive weed

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Journal of Plant Ecology 2018年第2期11卷 189-199页

作者： Daniel Z.Atwater Rebecca A.fletcher Christopher C.Dickinson andrew H.Paterson Jacob N.Barney Virginia tech Department of Plant PathologyPhysiology and Weed Science435 Old Glade RoadBlacksburgVA 24061USA University of Georgia Plant Genome Mapping Laboratory111 Riverbend RoadAthensGA 30606USA

Aims As an exotic species colonises a new continent,it must overcome enormous environmental variation in its introduced *** adaptation of introduced species has frequently been observed at the continent scale,particularly in response to latitudinal climatic ***,significant environmental heterogeneity can also exist at the landscape scale.A small number of studies have provided evidence that introduced species may also be capable of phenotypic and genetic differentiation at much smaller spatial *** example,previously we found US agricultural and non-agricultural populations of Sorghum halepense(Johnsongrass)to be phenotypically and genetically *** this study,we inves-tigated whether this phenotypic differentiation of agricultural and non-agricultural populations of *** is the result of fine-scale local *** We surveyed a nationally collected *** germplasm panel and also collected neighbouring agricultural and non-agricultural sub-populations of *** at four sites throughout Western Virginia,USA,raising seedlings in common conditions mimicking both agricultural and non-agricultural *** Findings At the national scale,we found evidence of habitat differentiation but not ***,at the local scale,we found evi-dence of specialisation in two of the four local populations to non-agricultural habitat,but no evidence of specialisation to agricultural *** results show that local specialisation is a possible,but not guaranteed consequence of kilometre-scale habitat heterogen-eity in invasive *** finding contributes to a growing aware-ness of the importance of fine-scale local adaptation in the ecology and management of introduced and weedy species.

关键词： Johnsongrass local adaptation rapid evolution Sorghum halepense(L.)

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Mantle plumes,triple junctions and transforms:A reinterpretation of Pacific Cretaceous-tertiary LIPs and the Laramide connection

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Geoscience Frontiers 2020年第4期11卷 1133-1144页

作者： Michael fletcher Derek A.Wyman Sabin Zahirovic EarthByte Group School of GeosciencesUniversity of SydneySydneyNew South Wales2006Australia

the Shatsky and Hess Rises,the Mid-Pacific Mountains and the Line Islands large igneous provinces(LIPs) present different challenges to conventional plume *** the genesis of these LIPs is important not only for a more complete understanding of mantle plumes and plume-generated magmatism,but also for establishing the role of subducted LIP conjugates in the evolution of the Laramide orogeny and other circum-Pacific orogenic events,which are related to the development of large porphyry *** past difficulties in developing consistent geodynamic models for these LIPs,it is useful to consider whether viable alternative geodynamic scenarios may be provided by recent concepts such as melt channel networks and channel-associated lineaments,along with the "two mode"model of melt generation,where a deeply-sourced channel network is superimposed on the plume,evolving and adapting over millions of years.A plume may also interact with transform faults in close proximity to a mid ocean ridge,with the resultant bathymetric character strongly affected by the relative age difference of lithosphere across the *** results suggest that the new two-mode melt models resolve key persistent issues associated with the Shatsky Rise and other LIPs and provide evidence for the existence of a conduit system within plumes that feed deeply-sourced material to the plume head,with flow maintained over considerable *** conduit system eventually breaks down during plume-ridge separation and may do so prior to the plume head being freed from the triple junction or spreading *** is evidence for not only plume head capture by a triple junction but also for substantial deformation of the plume stem as the distance between the stem and anchored plume head *** evidence suggests that young transforms can serve as pathways for plume material migration,at least in certain plume head-transform configurations.A fortuitous similarity between the path of the

关键词： Mantle plume Shatsky rise Hess rise Mid-pacific mountains Laramide orogeny

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用艺术超越文化与民族的界限——加拿大艺术家傅文笛作品欣赏

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国际人才交流 2024年第5期 40-43页

作者：李彦(文/译) 傅文笛(图) 不详

傅文笛是加拿大艺术家,从事油画创作长达20多年。同时,她也担任滑铁卢大学瑞纳森学院的校长。文笛的画作曾在中国、德国和加拿大等地展出,并被中国、加拿大、美国、英国及其他欧洲国家的高校、政府机构以及私人收藏。当她还是个年轻姑娘... 详细信息

傅文笛是加拿大艺术家,从事油画创作长达20多年。同时,她也担任滑铁卢大学瑞纳森学院的校长。文笛的画作曾在中国、德国和加拿大等地展出,并被中国、加拿大、美国、英国及其他欧洲国家的高校、政府机构以及私人收藏。当她还是个年轻姑娘时,艺术和中国一样,就已深深嵌入了文笛的心怀。1987年,还在攻读博士学位时,她首次踏上了华夏大地。深受中国文化和历史之美感染的同时,她也从遇到的中国学者和学生身上感受到千丝万缕的紧密相连的纽带。步入中年时,她重新拾起对艺术的热忱,也接续上了早年与中华大地的联系。

关键词：滑铁卢大学私人收藏博士学位艺术超越华夏大地作品欣赏油画创作加拿大

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Optimal control and energy storage for DC electric train systems using evolutionary algorithms

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Railway Engineering Science 2021年第4期29卷 327-335页

作者： Sam Nallaperuma David fletcher Robert Harrison University of Cambridge CambridgeUK University of Sheffield SheffieldUK

Electrified railways are becoming a popular transport medium and these consume a large amount of electrical *** concerns demand reduction in energy use and peak power demand of railway ***,high transmission losses in DC railway systems make local storage of energy an increasingly attractive *** optimisation framework based on genetic algorithms is developed to optimise a DC electric rail network in terms of a comprehensive set of decision variables including storage size,charge/discharge power limits,timetable and train driving style/trajectory to maximise benefits of energy storage in reducing railway peak power and energy *** results for the considered real-world networks show a reduction of energy consumption in the range 15%–30%depending on the train driving style,and reduced power peaks.

关键词： Autonomous control Intelligent transport systems Energy optimisation DC railway systems Energy regeneration

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Urban heat mitigation by green and blue infrastructure:Drivers,effectiveness,and future needs

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the Innovation 2024年第2期5卷 145-166页

作者： Prashant Kumar Sisay E.Debele Soheila Khalili Christos H.Halios Jeetendra Sahani Nasrin Aghamohammadi Maria de Fatima Andrade Maria Athanassiadou Kamaldeep Bhui Nerea Calvillo Shi-Jie Cao Frederic Coulon Jill L.Edmondson David fletcher Edmilson Dias de Freitas Hai Guo Matthew C.Hort Madhusudan Katti thomas Rodding Kjeldsen Steffen Lehmann Giuliano Maselli Locosselli Shelagh K.Malham Lidia Morawska Rajan Parajuli Christopher D.F.Rogers Runming Yao Fang Wang Jannis Wenk Laurence Jones Global Centre for Clean Air Research(GCARE) School of SustainabilityCivil and Environmental EngineeringFaculty of Engineering and Physical SciencesUniversity of SurreyGuildford GU27XHUK Institute for Sustainability University of SurreyGuildford GU27XHSurreyUK School of Built Environment University of ReadingWhiteknightsReading RG66BUUK School Design and the Built Environment Curtin University Sustainability Policy InstituteKent StBentley 6102Western Australia Harry Butler Institute Murdoch UniversityMurdoch 6150Western Australia Atmospheric Sciences Department Institute of AstronomyGeophysics and Atmospheric SciencesUniversity of Sao PauloSao Paulo 05508-090Brazil Met Office FitzRoy RoadExeter EX13PBUK Department of Psychiatry and Nuffield Department of Primary Care Health Sciences Wadham CollegeUniversity of OxfordOxfordUK Centre for Interdisciplinary Methodologies University of WarwickWarwickUK School of Architecture Southeast University2 SipailouNanjing 210096China Cranfield University School of WaterEnvironment and EnergyCranfield MK430ALUK Plants PhotosynthesisSoil ClusterSchool of BiosciencesUniversity of SheffieldSheffield S102TNUK UK Centre for Ecology&Hydrology Environment Centre WalesDeiniol RoadBangor LL572UWUK Air Quality Studies Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic UniversityHong KongChina Department of Forestry and Environmental Resources Faculty Excellence Program for Leadership in Public ScienceNorth Carolina State UniversityChancellorRaleighNC 27695USA Departments of Architecture&Civil Engineering and Chemical EngineeringUniversity of BathBath BA27AYUK School of Architecture University of NevadaLas VegasNV 89154USA Department of tropical Ecosystems Functioning Center of Nuclear Energy in AgricultureUniversity of São PauloPiracicaba 13416-000Sao PauloBrazil School of Ocean Sciences Bangor UniversityMenai BridgeAnglesey LL595 ABUK International Laboratory for Air Quality and Health Science and Engine

the combination of urbanization and global warming leads to urban overheating and compounds the frequency and intensity of extreme heat events due to climate ***,the risk of urban overheating can be mitigated by urban green-blue-grey infrastructure(GBGI),such as parks,wetlands,and engineered greening,which have the potential to effectively reduce summer air *** many reviews,the evidence bases on quantified GBGI cooling benefits remains partial and the practical recommendations for implementation are *** systematic literature review synthesizes the evidence base for heat mitigation and related co-benefits,identifies knowledge gaps,and proposes recommendations for their implementation to maximize their *** screening 27,486 papers,202 were reviewed,based on 51 GBGI types categorized under 10 main *** GBGI(green walls,parks,street trees)have been well researched for their urban cooling ***,several other GBGI have received negligible(zoological garden,golf course,estuary)or minimal(private garden,allotment)*** most efficient air cooling was observed in botanical gardens(5.0±3.5℃),wetlands(4.9±3.2℃),green walls(4.1±4.2℃),street trees(3.8±3.1℃),and vegetated balconies(3.8±2.7℃).Under changing climate conditions(2070–2100)with consideration of RCP8.5,there is a shift in climate subtypes,either within the same climate zone(e.g.,Dfa to Dfb and Cfb to Cfa)or across other climate zones(e.g.,Dfb[continental warm-summer humid]to BSk[dry,cold semi-arid]and Cwa[temperate]to Am[tropical]).these shifts may result in lower efficiency for the current GBGI in the *** the importance of multiple services,it is crucial to balance their functionality,cooling performance,and other related co-benefits when planning for the future *** global GBGI heat mitigation inventory can assist policymakers and urban planners in prioritizing effective interventions to reduce the risk of urban overheating,fi

关键词： estuary walls extreme

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