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Nano Research 2018年第7期11卷 3678-3690页

作者： Xiaolong Zhang Ying Zhang Fengwang Li Christopher D. Easton Alan M. Bond Jie Zhang School of Chemistry Monash University Clayton 3800 VIC Australia ARC Centre of Excellence for Electromaterials Science Monash University Clayton 3800 VIC Australia CSIRO Manufacturing BayviewAvenue Clayton 3168 VIC Australia

The development of heterogeneous catalysts with a well-defined micro structure to promote their activity and stability for electrocatalyfic CO2 reduction has been shown to be a promising strategy. In this work, Cu nanoparticles （- 4 nm in diameter） embedded in N-doped carbon （Cu@NC） arrays were fabricated by thermal decomposition of copper tetracyanoquinodimethane （CuTCNQ） under N2. Compared to polycrystalline copper electrodes, the Cu@NC arrays provide a significantly improved number of catalytically active sites. This resulted in a 0.7 V positive shift in onset potential, producing a catalytic current density an order magnitude larger at a potential of -2.7 V vs. Fc/Fc＋（Fc = ferrocene） in dimethylformamide （DMF）. By controlling the water content in the DMF solvent, the CO2 reduction product distribution can be tuned. Under optimal conditions （0.5 vol.% water）, 64% HCOO^-, 20% CO, and 13% H2 were obtained. The Cu@NC arrays exhibited excellent catalytic stability with only a 0.5% decrease in the steady-state catalytic current during 6 h of electrolysis. The three-dimensional （3D） array structure of the Cu@NC was demonstrated to be effective for improving the catalytic activity of copper based catalysts while maintaining long-term catalytic stability.

关键词： copper tetracyanoquinodimethane (CuTCNQ) copper carbon arrays CO2 reduction electrocatalysis

GPU based techniques for deep image merging

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Computational Visual Media 2018年第3期4卷 277-285页

作者： Jesse Archer Geoff Leach Ron van Schyndel School of Science RMIT University

Deep images store multiple fragments perpixel,each of which includes colour and depth,unlike traditional 2D flat images which store only a single colour value and possibly a depth ***,deep images have found use in an increasing number of applications,including ones using transparency and compositing.A step in compositing deep images requires merging per-pixel fragment lists in depth order;little work has so far been presented on fast *** paper explores GPU based merging of deep images using different memory layouts for fragment lists:linked lists,linearised arrays,and interleaved *** also report performance improvements using techniques which leverage GPU memory hierarchy by processing blocks of fragment data using fast registers,following similar techniques used to improve performance of transparency *** report results for compositing from two deep images or saving the resulting deep image before compositing,as well as for an iterated pairwise merge of multiple deep *** results show a 2 to 6 fold improvement by combining efficient memory layout with fast register based merging.

关键词： deep image composite GPU performance

Assessing factors impacting inter-satellite variability of grassland curing estimates for fire monitoring in Victoria, Australia using remote sensing

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International Journal of Digital Earth 2023年第1期16卷 3368-3383页

作者： Sike Li School of Science University of New South Wales Canberra at the Australian Defence Force AcademyCampbellAustralia

Grassland fires in Victoria,Australia pose significant environmental *** these fres relies on the Grassland Curing Degree(GCD)indicator and the corresponding Grassland Curing Map(GCM)for spatial ***-satellite variability(IsV)assesses the variations in Grassland Curing Maps(GCMs)produced from remote sensing data with varying spatial resolutions(SR).Higher SR data improves GCM accuracy but increases processing *** helps identify priority areas that need higher SR *** study analyzes sample sites in Victoria and finds correlations between Isv,seasonality,temperature,precipitation,and distance to residential *** reveal lower Isv during summers and autumns compared to winters and *** shows a strong negative linear relationship with ISV,indicating that higher temperatures result in lower *** exhibits a weak positive correlation with IsV,suggesting heavier precipitation leads to increased *** to grasslands negatively correlates with IsV,indicating that greater distances from residential lands result in lower *** on these findings,it is recommended to use higher SR satellite data for GCM creation during winters and springs when temperatures are low,precipitation is heavy,and areas are closer to residential *** suggestions are provided for fire management based on these results.

关键词： Grassland fire remote sensing environmental monitoring decision support Gis earth observation

Performance Anomaly Detection in Web Services: An RNN-Based Approach Using Dynamic Quality of Service Features

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Computers, Materials & Continua 2020年第8期64卷 729-752页

作者： muhammad Hasnain Seung Ryul Jeong muhammad Fermi Pasha Imran Ghani School of Information Technology Monash UniversitySubang Jaya47500Malaysia Graduate School of Business IT Kookmin UniversitySeoulKorea Department of Mathematical and Computer Sciences Indiana University of PennsylvaniaIndianaUSA.

Performance anomaly detection is the process of identifying occurrences that do not conform to expected behavior or correlate with other incidents or events in time series *** detection has been applied to areas such as fraud detection,intrusion detection systems,and network *** this paper,we propose an anomaly detection framework that uses dynamic features of quality of service that are collected in a simulated *** variants of recurrent neural networks-SimpleRNN,long short term memory,and gated recurrent unit are *** results reveal that the proposed method effectively detects anomalies in web services with high *** performance of the proposed anomaly detection framework is superior to that of existing approaches using maximum accuracy and detection rate metrics.

关键词： Point anomaly anomaly detection recurrent neural networks web services simulated data

Novel acid initiators for the rapid cationic polymerization of styrene in room temperature ionic liquids

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Science China Chemistry 2012年第8期55卷 1671-1676页

作者： VIJAYARAGHAVAN R. MACFARLANE D. R. Department of Chemistry Monash University Clayton Campus Victoria 3800 Australia

Cationic polymerization of styrene has been achieved using several novel acidic initiators in room temperature ionic liquids (ILs) under mild reaction conditions to obtain polymers of low molecular weight with narrow polydispersity. Both strong protic acids such as bis(trifluoromethanesulfonyl) amide acid (HTFSA) and a moderately weak acid such as bisoxalato phosphorous acid (HBOP) have been studied as initiators. It has been observed that HTFSA initiates the polymerization rapidly even at room temperature and below, as compared to HBOP which produces a slower polymerization requiring elevated temperatures to complete. The relative difference in reactivity of the initiators as compared to the previously described HBOB initiator is discussed in terms of the difference in their proton acidity and the consequential basicity of the anions. The efficiency of different ILs as the reaction solvent is also presented.

关键词： cationic polymerization HTFSA HBOP ILs polydispersity

Deficiency of the transcription factor PLAG1 results in aberrant coiling and morphology of the epididymis

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Asian Journal of Andrology 2020年第4期22卷 342-347页

作者： Joanne Wong Almas R Juma Stephanie C Tran Jemma G Gasperoni Sylvia V H Grommen Bert De Groef Department of Physiology Anatomy and MicrobiologyLa Trobe UniversityBundooraVictoria 3086Australia

Mice deficient in the transcription factor pleomorphic adenoma gene 1(PLAG1)exhibit reproductive issues that are characterized,in part,by decreased progressive sperm motility in the ***,the underlying cause of this impairment is *** epididymal transit is critical for sperm maturation and motility,the morphology of the epididymis of Plag1-deficient mice was investigated and the spatial expression patterns of PLAG1 protein and mRNA were *** X-gal staining and in situ hybridization,PLAG1 was shown to be widely expressed in both the epithelium and stroma in all regions of the mouse ***,the X-gal staining pattern was markedly different in the cauda,where it could be suggestive of PLAG1 secretion into the epididymal *** all ages investigated,the morphology of epididymides from Plag1 knockout(KO)mice was aberrant;the tubule failed to elongate and coil,particularly in the corpus and cauda,and the cauda was malformed,lacking its usual bulbous ***,the epididymides from Plag1 KO mice were significantly reduced in size relative to body *** 20%of Plag1-deficient mice,the left testicle and epididymis were *** impaired morphogenesis of the epididymal tubule is likely to be a major contributing factor to the fertility problems observed in male Plag1-deficient *** results also establish PLAG1 as an important regulator of male reproduction,not only through its involvement in testicular sperm production,but also via its role in the development and function of the epididymis.

关键词： development epididymis pleomorphic adenoma gene 1 tubule coiling Wolffian duct

Coupled Eulerian-Lagrangian simulation of a modified direct shearapparatus for the measurement of residual shear strengths

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Journal of Rock Mechanics and Geotechnical Engineering 2021年第5期13卷 1113-1123页

作者： Luke Tatnell Ashley P.Dyson Ali Tolooiyan GHD Group Pty.Ltd. TraralgonVIC3844Australia School of Engineering University of TasmaniaHobartTAS7001Australia

The simulation of large-strain geotechnical laboratory tests with conventional Lagrangian finite element method(FEM)techniques is often problematic due to excessive mesh *** multiple reversal direct shear(MRDS)test can be used to measure the residual shear strength of soils in a laboratory ***,modelling and simulation generally require advanced numerical methods to accommodate the large shear strains concentrated in the shear *** reality,when the standard direct shear(DS)apparatus is used,the MRDS method is prone to two major sources of measurement error:load cap tilting and specimen *** sources of error make it difficult or even impossible to correctly determine the residual shear *** paper presents a modified DS apparatus and multi-reversal multi-stage test method,simulated using the coupled Eulerian-Lagrangian(CEL)method in a finite element *** method was successful in evaluating equipment and preventing both load cap tilting and specimen loss,while modelling large-deformation behaviour that is not readily simulated with the conventional FEM or arbitrary Lagrangian-Eulerian(ALE)***,a modified DS apparatus was created for the purpose of analysing mixtures of organic materials found in an Australian *** results obtained from the modified DS CEL model in combination with laboratory tests show a great improvement in the measured residual shear strength profiles compared to those from the standard *** modified DS setup ensures that accurate material residual shear strengths are calculated,a factor that is vital to ensure appropriate soil behaviour is simulated for numerical analyses of large-scale geotechnical projects.

关键词： Coupled Eulerian-Lagrangian(CEL)simulation Residual shear strength multi-stage Direct shear(DS) Organic content Cohesive soil

以医学高等院校为支撑搭建网络开展全科科研助力学科建设

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中华全科医师杂志 2023年第11期22卷 1118-1124页

作者：姚弥张建欣荆冠宁张丽娟王令令范腾阳彭满春张俭胡琳祁祯楠聂倩文董爱梅郑家强迟春花北京大学第一医院全科医学科北京100034 黄冈市中心医院全科医学科黄冈438000 滨州市人民医院全科医学科滨州256600 遵义医科大学附属医院全科医学科遵义563000 深圳市中西医结合医院全科医学科深圳518000 深圳市龙华区人民医院民治街道区域社区卫生服务中心全科医学科深圳518000 英国伯明翰大学应用健康研究院英国伯明翰B152TT

全科医学的学科发展与全科医学科研的进展密切相关。我国全科医学科研发展面临着诸多问题,如对全科医学科研的投入与基层医疗卫生服务的重要性严重不匹配;已开展科研项目的研究方向和内容较为局限,研究质量普遍不高等。文章总结了国内... 详细信息

全科医学的学科发展与全科医学科研的进展密切相关。我国全科医学科研发展面临着诸多问题,如对全科医学科研的投入与基层医疗卫生服务的重要性严重不匹配;已开展科研项目的研究方向和内容较为局限,研究质量普遍不高等。文章总结了国内外部分高校全科医学科研发展现状,并从全科医学研究投入、人才培养、跨学科研究、科研产出等多个方面进行分析,提出以医学高等院校作为开展科研工作的重要支撑,推动全科科研发展的观点。借鉴国际经验,构建全科医学研究网络,引导科研基金资助向全科科研倾斜,加强全科医生科研管理培训,探索有效的全科科研知识迁移模式,加快全科科研成果的转化和应用,最终实现高质量的全科科研助力全科医学学科建设的良性循环。

关键词：全科医学科学研究学科建设科研网络

Trends in Hospital Admission Rates and Associated Direct Healthcare Costs in Brazil:A Nationwide Retrospective Study between 2000 and 2015

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The Innovation 2020年第1期1卷 134-148,133页

作者： Qi Zhao Micheline S.Z.S.Coelho Shanshan Li Paulo H.N.Saldiva Michael J.Abramson Rachel R.Huxley Yuming Guo Department of Epidemiology and Preventive Medicine School of Public Health and Preventive MedicineMonash UniversityLevel 2553 St.Kilda RoadMelbourneVIC 3004Australia Institute of Advanced Studies the University of Sa˜o PauloSa˜o PauloState of Sa˜o Paulo 05508-970Brazil Faculty of Health Deakin UniversityMelbourneVIC3125Australia

BACKGROUND In Brazil,the increase in non-fatal events presents a new,unprecedented challenge for the free and universally accessible public healthcare system(SUS),the size and nature of which has yet to be reliably **... 详细信息

关键词： Brazil Nation admission