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An air quality forecasting system in beijing-Application to the study of dust storm events in China in May 2008

Journal of Environmental Sciences 2012年第1期24卷 102-111页

作者： benoit Laurent Fanny Velay-Lasry Richard Ngo Claude Derognat batrice marticorena Armand Albergel Laboratoire Inter-universitaire des Systèmes Atmosphriques Laboratorie mixte Paris VII-UPEC-CNRSUMR 7583CrteilFrance ARIA Technologies Boulogne-BillancourtFrance

An air pollution forecast system,ARIA Regional,was implemented in 2007–2008 at the beijing Municipality Environmental Monitoring Center,providing daily forecast of main pollutant *** chemistry-transport model CHIMERE was coupled with the dust emission model Mb95 for restituting dust storm events in springtime so as to improve forecast *** storm events were sporadic but could be extremely intense and then control air quality indexes close to the source areas but also far in the beijing area.A dust episode having occurred at the end of May 2008 was analyzed in this article,and its impact of particulate matter on the Chinese air pollution index （API） was *** our estimation,about 23 Tg of dust were emitted from source areas in Mongolia and in the Inner Mongolia of China,transporting towards *** episode of dust storm influenced a large part of North China and East China,and also South *** model result was then evaluated using satellite observations and in situ *** simulated daily concentrations of total suspended particulate at 6：00 UTC had a similar spatial pattern with respect to OMI satellite aerosol *** evolution of dust plume was evaluated by comparing dust aerosol optical depth （AOD） calculated from the simulations with AOD derived from MODIS satellite ***,the comparison of reported Chinese API in beijing with API calculated from the simulation including dust emissions had showed the significant improvement of the model results taking into accountmineral dust correctly.

关键词： dust particulate matter modeling beijing air quality forecast and analysis system

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The xanthate route to all-carbon quaternary centers

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Science China Chemistry 2019年第11期62卷 1450-1462页

作者： béatrice Quiclet-Sire Samir Z.Zard Laboratoire de Synthèse Organique Ecole Polytechnique

This review discusses the numerous routes to all-carbon quaternary centers based on the unique radical chemistry of xanthates. Itsummarizes the various approaches to the synthesis of tertiary xanthates then describes the intra- and intermolecular radicaladditions and combinations thereof that have so far been used to construct quaternary centers.

关键词： xanthates quaternary centers radical addition cyclization tandem reactions

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Intrumer:A Multi Module Distributed Explainable IDS/IPS for Securing Cloud Environment

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Computers, Materials & Continua 2025年第1期82卷 579-607页

作者： Nazreen banu A S.K.b.Sangeetha Department of Computer Science and Engineering SRM Institute of Science and TechnologyVadapalani CampusChennai600026Tamil NaduIndia

The increasing use of cloud-based devices has reached the critical point of cybersecurity and unwanted network *** environments pose significant challenges in maintaining privacy and *** approaches,such as IDS,have been developed to tackle these ***,most conventional Intrusion Detection System(IDS)models struggle with unseen cyberattacks and complex high-dimensional *** fact,this paper introduces the idea of a novel distributed explainable and heterogeneous transformer-based intrusion detection system,named INTRUMER,which offers balanced accuracy,reliability,and security in cloud settings bymultiplemodulesworking together within *** traffic captured from cloud devices is first passed to the TC&TM module in which the Falcon Optimization Algorithm optimizes the feature selection process,and Naie bayes algorithm performs the classification of *** selected features are classified further and are forwarded to the Heterogeneous Attention Transformer(HAT)*** this module,the contextual interactions of the network traffic are taken into account to classify them as normal or malicious *** classified results are further analyzed by the Explainable Prevention Module(XPM)to ensure trustworthiness by providing interpretable *** the explanations fromthe classifier,emergency alarms are transmitted to nearby IDSmodules,servers,and underlying cloud devices for the enhancement of preventive *** experiments on benchmark IDS datasets CICIDS 2017,Honeypots,and NSL-KDD were conducted to demonstrate the efficiency of the INTRUMER model in detecting network trafficwith high accuracy for different *** outperforms state-of-the-art approaches,obtaining better performance metrics:98.7%accuracy,97.5%precision,96.3%recall,and 97.8%*** results validate the robustness and effectiveness of INTRUMER in securing diverse cloud environments against sophisticated cyber threats.

关键词： Cloud computing intrusion detection system transformers and explainable artificial intelligence(XAI)

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Neuroinflammation revisited through the microglial lens

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Neural Regeneration Research 2025年第7期20卷 1989-1990页

作者： Renato Socodato João b.Relvas Institute of Research and Innovation in Health(i3S)and Institute for Molecular and Cell biology(IbMC) University of PortoPortoPortugal Department of biomedicine Faculty of Medicine of the University of Porto(FMUP)PortoPortugal

Neuroimmunology is emerging as a pivotal field,shedding light on the intricate dialogues between the central nervous system(CNS)and the immune *** exploration is particularly significant in understanding microglia,the CNS’s innate immune cells,beyond the conventional conflation of“neuroinflammation”and“microglial activation.”This conflation has clouded the true complexity of these processes,potentially stalling scientific progress and the development of new *** challenge the long-standing perspectives that have oversimplified these interactions,advocating for a deeper exploration of the dynamic relationship between neuroinflammation and microglial *** dissecting specific molecular pathways,we aim to illuminate their elaborate roles in neuroinflammatory responses,especially in the context of Alzheimer’s disease(AD).Here,neuroinflammation is not merely a passive observer or a direct antagonist but a complex agent in the disease’s *** article calls for a significant paradigm shift towards an integrative,multi-omics approach to *** such a comprehensive framework is crucial for advancing our understanding of neuroinflammatory conditions and paving the way for targeted therapeutic strategies for brain diseases.

关键词： inflammation simplified activation

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Federated Learning’s Role in Next-Gen TV Ad Optimization

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Computers, Materials & Continua 2025年第1期82卷 675-712页

作者： Gabriela Dobrita Simona-Vasilica Oprea Adela bâra Department of Economic Informatics and Cybernetics Bucharest University of Economic StudiesBucharest010374Romania

In the rapidly evolving landscape of television advertising,optimizing ad schedules to maximize viewer engagement and revenue has become *** methods often operate in silos,limiting the potential insights gained from broader data analysis due to concerns over privacy and data *** article introduces a novel approach that leverages Federated Learning(FL)to enhance TV ad schedule optimization,combining the strengths of local optimization techniques with the power of global Machine Learning(ML)models to uncover actionable insights without compromising data *** combines linear programming for initial ads scheduling optimization with ML—specifically,a K-Nearest Neighbors(KNN)model—for predicting ad spot *** into account the diversity and the difficulty of the ad-scheduling problem,we propose a prescriptivepredictive approach in which first the position of the ads is optimized(using Google’s OR-Tools CP-SAT)and then the scheduled position of all ads will be the result of the optimization ***,this output becomes the target of a predictive task that predicts the position of new entries based on their characteristics ensuring the implementation of the scheduling at large scale(using KNN,Light Gradient boosting Machine and Random Forest).Furthermore,we explore the integration of FL to enhance predictive accuracy and strategic insight across different broadcasting networks while preserving data *** FL approach resulted in 8750 ads being precisely matched to their optimal category placements,showcasing an alignment with the intended diversity ***,there was a minimal deviation observed,with 1133 ads positioned within a one-category variance from their ideal placement in the original dataset.

关键词： Ad scheduling prescriptive-predictive approach federated learning KNN

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New Precipitation and Temperature Grids for Northern Patagonia： Advances in Relation to Global Climate Grids

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Journal of Meteorological Research 2016年第1期30卷 38-52页

作者： Emilio bianchi Ricardo Villalba Maximiliano Viale Fleur Couvreux Rocio marticorena instituto nacional de tecnología agropecuaria estación experimental agropecuaria barilocheModesta Victoria 4450BarilocheArgentina consejo nacional de investigaciones científicas y tcnicas Argentina instituto argentino de nivología glaciología y ciencias ambientales-consejo nacional de investigaciones científicas y tcnicasMendozaRuiz LealMendozaArgentina centre national de recherches mtorologiques(cnrm-game) Mdtdo-FranceToulouseFrance autoridad interjurisdiccional de cuencas Argentina

Climate data of mean monthly temperature and total monthly precipitation compiled from different sources in northern Patagonia were interpolated to 20-km resolution grids over the period 1997-2010. This northern Patagonian climate grid （NPCG） improves upon previous gridded products in terms of its spatial resolution and number of contributing stations, since it incorporates 218 and 114 precipitation and temper- ature records, respectively. A geostatistical method using surface elevation from a Digital Elevation Model （DEM） as the ancillary variable was used to interpolate station data into even spaced points. The maps provided by NPCG are consistent with the broad spatial and temporal patterns of the northern Patagonian climate, showing a comprehensive representation of the latitudinal and altitudinal gradients in temperature and precipitation, as well as their related patterns of seasonality and continentality. We compared the per- formance of NPCG and various other datasets available to the climate community for northern Patagonia. The grids used for the comparison included those of the Global Precipitation Climatology Project, ERA- Interim, Climate Research Unit （University of East Anglia）, and University of Delaware. based on three statistics that quantitatively assess the spatial coherence of gridded data against available observations （bias, MAE, and RMSE）, NPCG outperforms other global grids. NPCG represents a useful tool for understand- ing climate variability in northern Patagonia and a valuable input for regional models of hydrological and ecological processes. Its resolution is optimal for validating data from the general circulation models and working with raster data derived from remote sensing, such as vegetation indices.

关键词： northern Patagonia precipitation temperature co-kriging climate grids Cordillera de los Andes

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Rolling bearing Condition Monitoring Technique based on Cage Rotation Analysis and Acoustic Emission

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Journal of Dynamics, Monitoring and Diagnostics 2022年第2期1卷 57-65页

作者： Matías marticorena Oscar García Peyrano Vibrations Laboratory Vibrations DivisionNational Atomic Energy CommissionSan Carlos de BarilocheArgentina balseiro Institute Cuyo National UniversitySan Carlos de BarilocheArgentina

In this paper,we present an alternative technique for detecting changes in the operating conditions of rolling element bearings(REbs)that can lead to premature *** developed technique is based on measuring the kinematics of the bearing *** rotational motion of the cage is driven by traction forces generated in the contacts of the rolling elements with the *** is known that the cage angular frequency relative to shaft angular frequency depends on the bearing load,the bearing speed,and the lubrication condition since these factors determine the lubricant film thickness and the associated traction *** a large percentage of REb failures are due to misalignment or lubrication problems,any evidence of these conditions should be interpreted as an incipient *** this paper,a novel method for the measurement of the instantaneous angular speed(IAS)of the cage is *** method is evaluated in a deep groove ball bearing test rig equipped with a cage IAS sensor,as well as a custom acoustic emission(AE)transducer and a piezoelectric *** IAS of the cage is analyzed under different bearing loads and shaft speeds,showing the dependence of the cage angular speed with the calculated lubricant film *** bearing faulty operating conditions(mixed lubrication regime,lubricant depletion,and misalignment)are *** is shown that the cage IAS is dependent on the lubrication regime and is sensitive to *** AE signal is also used to evaluate the lubrication *** results suggest that the proposed technique can be used as a condition monitoring tool in industrial environments to detect abnormal REb conditions that may lead to premature failure.

关键词： acoustic emission cage instantaneous angular speed condition monitoring cyclostationary analysis rolling element bearing

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Water balance prediction in stormwater infiltration basins using 2-D modeling:An application to evaluate the clogging process

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International Journal of Sediment Research 2018年第4期33卷 371-384页

作者： Patrice Cannavo Anas Coulon Sylvain Charpentier béatrice béchet Laure Vidal-beaudet Agrocampus Ouest Institute for Research on Urban Sciences and Techniques (IRSTV) Research Unit Environmental Physics and Horticulture Research(EPHor) bretagne Loire University French Institute of Science and Technology for Transport Development and Networks (IFSTTAR) IRSTV Geotechnical engineeringEnvironment Natural hazards and Earth sciences Department (GERS) Water and Environment Laboratory (LEE)

Sustainable urban drainage systems are built along roads and in urban areas to collect urban runoff and avoid flooding, and to filter water pollutants. Sediment collected by runoff is deposited in the stormwater basin and progressively reduces water infiltration efficiency, leading to the clogging of the basin. To help stormwater basin managers and stakeholders better understand and predict clogging rates in order to elaborate maintenance plans and schedules, water transport prediction models are necessary. However,because of the heterogeneous sediment hydrodynamic properties inside the stormwater basin, a twodimensional(2-D) water flow model is required to predict water levels and possible overflow as accurately as possible. Saturated hydraulic conductivity(Ks) and sediment water retention curves were measured in the overall sediment layer of the stormwater basin, in addition to sediment layer thickness and organic matter content(11 sampling points). Sediment depth was used to predict organic matter(OM) content, and the OM was used to predict Ks. Water height in the basin was modeled with the HYDRUS-2 D model by taking into account the sediment hydrodynamic properties distribution. The HYDRUS-2 D model gave a satisfactory representation of the measured data. Scenarios of the hydraulic properties of stormwater basin sediment were tested over time, and hydraulic resistance, R, was calculated to assess the stormwater basin performance. Presently, after 20 years of functioning, the stormwater basin still ensures efficient water infiltration, but the first outflow(Hydraulic resistance,R > 24 h)) is expected to appear in the next 5 years, and clogging(R > 47 h) in the next 13 years. This 2-D water balance model makes it possible to integrate the hydrodynamic heterogeneity of a stormwater basin. It gives interesting perspectives to better predict 2-D/3-D contaminant transport.

关键词： 2-D water transport Hydraulic conductivity Sediment water retention Stormwater basin efficiency

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Cadmium isotopic constraints on metal sources in the Huize Zn–Pb deposit, SW China

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Geoscience Frontiers 2021年第6期12卷 162-170页

作者： Chuanwei Zhu Hanjie Wen Yuxu Zhang Zhilong Huang Christophe Cloquet béatrice Luais Tao Yang State Key Laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China University of Chinese Academy of Sciences Beijing 100049China Centre de Recherches Petrographiques et Geochimiques CNRS/UMR 735815Rue Notre-Dame-PauvresB.P.2054501 Vandoeuvre-les-Nancy CedexFrance State Key Laboratory for Mineral Deposits Research Department of Earth SciencesNanjing UniversityNanjing 210093China

The Sichuan–Yunnan–Guizhou(SYG)Zn–Pb metallogenic zone in SW China contains>400 carbonatehosted hydrothermal Zn–Pb *** of these,such as the Huize,Tianbaoshan,and Daliangzi deposits,are super-large deposits with significant reserves of Cd,Ge,and ***,the sources of these metals remain *** study investigated the Cd isotopic geochemistry of the Huize deposit,the largest Zn–Pb deposit in the SYG *** formed at three stages in the deposit have different colors:black or dark brown(Stage I),red(Stage II),and light-yellow(Stage III).The d^(114/110)Cd values of the sphalerites are in the order Stage IIIbeing responsible for the still lower values of the Stage III *** galena,the δ^(114/110)Cd values are inversely correlated with Cd contents and tend to be higher in high-Zn *** speculate that Cd isotopic fractionation was significant during the precipitation of sphalerite and galena,with light Cd isotopes being enriched in galena rather than *** of the Cd isotopic signatures and Zn/Cd ratios of different endmembers suggests that the δ^(114/110)Cd values and Zn/Cd ratios of sphalerite from the Huize deposit,as well as other largescale deposits from the SYG area,are lie in those range of Emeishan basalts and sedimentary rocks and the mean δ^(114/110)Cd values of these deposits show good negative correlation with 1/Cd,suggesting that the ore-forming materials of these deposits were derived from the mixing of Emeishan basalts and sedimentary *** study demonstrates that Cd isotopes can be useful proxies in elucidating ore genesis in large Zn–Pb deposits.

关键词： Cd isotopes Sulfide Hydrothermal system Huize Zn–Pb deposit

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Ocular trauma in an urban Spanish population:epidemiology and visual outcome

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International Journal of Ophthalmology(English edition) 2021年第9期14卷 1327-1333页

作者： Marta belmonte-Grau Guadalupe Garrido-Ceca Paula marticorena-álvarez Department of Ophthalmology Hospital Universitario de La PrincesaMadrid 28006Spain Universidad Autónoma de Madrid Medicine UniversityMadrid 28006Spain

AIM:To describe epidemiological aspects,clinical findings,and visual results in eye trauma patients requiring urgent surgery at a tertiary ***:Retrospective review of adult patients requiring urgent surgery for trauma to the eyeball from January 2010 and April *** was collected relative to age,gender,mechanism of the injury,type of wound,initial and final visual acuity,number and type of surgeries carried *** were classed according to the birmingham Eye Trauma Terminology(bETT)and the Ocular Trauma Score(OTS)***:The survey included 92 *** age was 54.76±22.18 *** most frequent cause was domestic accidents(44.6%),followed by aggression(22.80%)and occupational accidents(17.4%).Trauma from aggression was more frequent in men(P=0.006)and accidents in the home more common in women(P=0.011).Patients over 65 y presented an odds ratio(OR)of 10.71 for suffering a domestic *** between 15-45 and 46-65 y were at higher risk of trauma from aggression(OR=17.52 and OR=10.94,respectively).As for the type of injury,63.04%were open-globe lesions,Zone II being the most frequently affected(27.2%).In Logistic regression analysis,old age(P=0.05)and retinal involvement(P=0.001)were found to be associated with higher rate of unfavourable visual ***:The epidemiological aspects of eye trauma are highly dependent on the area of population *** accidents are more relevant than workplace accidents in older urban areas with high socioeconomic status.A better knowledge of the epidemiological characteristics is useful for implementing specific prevention measures and appropriate treatment strategies.

关键词： ocular trauma epidemiology domestic accident

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