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Building Simulation 2022年第4期15卷 537-548页

作者： Dahai Qi Senwen Yang Chang Shu Xin Zhang Liangzhu(Leon)Wang andreas Athienitis Department of Civil and Building Engineering Universite de Sherbrooke2500boul.de I'UniversiteSherbrookeQuebec J1K2R1Canada Centre for Zero Energy Building Studies Department of BuildingCivil and Environmental EngineeringConcordia University1455 de Maisonneuve Blvd.WestMontrealQuebec H3G 1M8Canada

Road tunnels consume a large amount of energy,especially in the Canadian cold climate,where the roads are heated electrically or deicing during the *** a more sustainable and resilient road tunnel energy system,we conducted an exploratory study on installing a semi-transparent photovoltaic(STPV)canopy at the entrances and exits of a tunnel under a *** proposed system generates solar-powered electricity,improves thermal and visual conditions,and reduces energy *** this study,field measurements of road surface temperature and air temperature were conducted,and numerical simulations with and without STPV were performed to study air and road surface temperatures under different traffic *** field measurements show the road surface temperatures are higher than the air temperature on *** interior air and road surface temperature were measured to be above 0°C,even though the outdoor temperature is far below 0°C,thus significantly reducing the need for deicing in winter using *** simulations show that the air and surface temperatures elevate due to the solar transmission heat through the STPV canopy,thus reducing deicing energy consumption *** fire safety analysis also showed that the proposed system's top opening should be located near the tunnel entrance instead of the canopy entrance for better smoke exhaust during a fire.

关键词： STPV road tunnel fire safety energy efficiency cold climate

Data-driven science and machine learning methods in laser-plasma physics

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High Power Laser Science and Engineering 2023年第5期11卷 10-50页

作者： andreas Döpp Christoph Eberle Sunny Howard Faran Irshad Jinpu Lin Matthew Streeter Ludwig-Maximilians-Universität München GarchingGermany Department of Physics Clarendon LaboratoryUniversity of OxfordOxfordUK School for Mathematics and Physics Queen’s University BelfastBelfastUK

Laser-plasma physics has developed rapidly over the past few decades as lasers have become both more powerful and more widely *** experimental and numerical research in this field was dominated by single-shot experiments with limited parameter ***,recent technological improvements make it possible to gather data for hundreds or thousands of different settings in both experiments and *** has sparked interest in using advanced techniques from mathematics,statistics and computer science to deal with,and benefit from,big *** the same time,sophisticated modeling techniques also provide new ways for researchers to deal effectively with situation where still only sparse data are *** paper aims to present an overview of relevant machine learning methods with focus on applicability to laser-plasma physics and its important sub-fields of laser-plasma acceleration and inertial confinement fusion.

关键词： deep learning laser-plasma interaction machine learning

Recent advances in pathophysiology,diagnosis and management of hepatorenal syndrome:A review

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World Journal of Hepatology 2023年第6期15卷 741-754页

作者： Calvin Kiani andreas G Zori Department of Internal Medicine Section of Gastroenterology and HepatologyUniversity of FloridaGainesvilleFL 32610United States

Hepatorenal syndrome with acute kidney injury(HRS-AKI)is a form of rapidly progressive kidney dysfunction in patients with decompensated cirrhosis and/or acute severe liver injury such as acute liver *** data suggest that HRS-AKI occurs secondary to circulatory dysfunction characterized by marked splanchnic vasodilation,leading to reduction of effective arterial blood volume and glomerular filtration ***,volume expansion and splanchnic vasoconstriction constitute the mainstay of medical ***,a significant proportion of patients do not respond to medical *** patients often require renal replacement therapy and may be eligible for liver or combined liver-kidney *** there have been advances in the management of patients with HRS-AKI including novel biomarkers and medications,better-calibrated studies,more widely available biomarkers,and improved prognostic models are sorely needed to further improve diagnosis and treatment of HRS-AKI.

关键词： Hepatorenal syndrome Pathophysiology Diagnosis Management Review

Automatic identification of crystal structures and interfaces via artificial-intelligence-based electron microscopy

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npj Computational Materials 2023年第1期9卷 489-499页

作者： andreas Leitherer Byung Chul Yeo Christian H.Liebscher Luca M.Ghiringhelli The NOMAD Laboratory at the Fritz-Haber-Institut of the Max-Planck-Gesellschaft and IRIS-Adlershof of the Humboldt-Universität zu Berlin BerlinGermany Department of Energy Resources Engineering Pukyong National UniversityBusan 48513Republic of Korea Max-Planck-Institut für Eisenforschung 40237 DüsseldorfGermany Physics Department and IRIS Adlershof Humboldt-Universität zu BerlinBerlinGermany Present address:Department of Materials Science and Engineering Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany

Characterizing crystal structures and interfaces down to the atomic level is an important step for designing advanced *** electron microscopy routinely achieves atomic resolution and is capable to resolve complex arrangements of atoms with picometer ***,we present AI-STEM,an automatic,artificial-intelligence based method,for accurately identifying key characteristics from atomic-resolution scanning transmission electron microscopy(STEM)images of polycrystalline *** method is based on a Bayesian convolutional neural network(BNN)that is trained only on simulated ***-STEM automatically and accurately identifies crystal structure,lattice orientation,and location of interface regions in synthetic and experimental *** model is trained on cubic and hexagonal crystal structures,yielding classifications and uncertainty estimates,while no explicit information on structural patterns at the interfaces is included during *** work combines principles from probabilistic modeling,deep learning,and information theory,enabling automatic analysis of experimental,atomic-resolution images.

关键词： materials crystal estimates

Let’s all dance:Enhancing amateur dance motions

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Computational Visual Media 2023年第3期9卷 531-550页

作者： Qiu Zhou Manyi Li Qiong Zeng andreas Aristidou Xiaojing Zhang Lin Chen Changhe Tu School of Computer Science&Technology Shandong UniversityQingdao 266000China School of Software Shandong UniversityJinan 250101China Department of Computer Science University of CyprusNicosia 1678Cyprus CYENS Centre of Excellence Nicosia 1016Cyprus Qingdao Institute of Humanities and Social Sciences Shandong UniversityQingdao 266000China.

Professional dance is characterized by high impulsiveness,elegance,and aesthetic *** order to reach the desired professionalism,it requires years of long and exhausting practice,good physical condition,musicality,but also,a good understanding of *** dance motions and transferring them to digital avatars is commonly used in the film and entertainment ***,so far,access to high-quality dance data is very limited,mainly due to the many practical difficulties in capturing the movements of dancers,making it prohibitive for largescale data *** this paper,we present a model that enhances the professionalism of amateur dance movements,allowing movement quality to be improved in both spatial and temporal *** model consists of a dance-to-music alignment stage responsible for learning the optimal temporal alignment path between dance and music,and a dance-enhancement stage that injects features of professionalism in both spatial and temporal *** learn a homogeneous distribution and credible mapping between the heterogeneous professional and amateur datasets,we generate amateur data from professional dances taken from the AIST++*** demonstrate the effectiveness of our method by comparing it with two baseline motion transfer methods via thorough qualitative visual controls,quantitative metrics,and a perceptual *** also provide temporal and spatial module analysis to examine the mechanisms and necessity of key components of our framework.

关键词： animation music-to-motion alignment dance motion enhancement dance motion analysis

Frost Damage Index:The Antipode of Growing Degree Days

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Plant Phenomics 2023年第4期5卷 757-766页

作者： Flavian Tschurr Norbert Kirchgessner andreas Hund Lukas Kronenberg Jonas Anderegg Achim Walter Lukas Roth Department of Environmental System Sciences Institute of Agricultural SciencesETH ZürichZürichSwitzerland Crop Genetics John Innes CentreNorwichUK Department of Environmental System Sciences Institute of Integrative BiologyETH ZürichZürichSwitzerland

Abiotic stresses such as heat and frost limit plant growth and ***-based field phenotyping methods allow quantifying not only plant growth but also plant *** crops show senescence caused by cold spells,visible as declines in leaf *** accurately quantified such declines by monitoring changes in canopy cover based on time-resolved high-resolution imagery in the ***-six winter wheat genotypes were measured in multiple years.A concept termed"frost damage index"(FDI)was developed that,in analogy to growing degree days,summarizes frost events in a cumulative *** measured sensitivity of genotypes to the FDI correlated with visual scorings commonly used in breeding to assess winter *** FDI concept could be adapted to other factors such as drought or heat *** commonly not considered in plant growth modeling,integrating such degradation processes may be key to improving the prediction of plant performance for future climate scenarios.

关键词： winter analogy integrating

Predicting EHL film thickness parameters by machine learning approaches

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Friction 2023年第6期11卷 992-1013页

作者： Max MARIAN Jonas MURSAK Marcel BARTZ Francisco J.PROFITO andreas ROSENKRANZ Sandro WARTZACK Department of Mechanical and Metallurgical Engineering School of EngineeringPontificia Universidad Católica de ChileSantiago6904411Chile Engineering Design Friedrich-Alexander-University Erlangen-Nuremberg(FAU)Erlangen91058Germany Department of Mechanical Engineering Polytechnic School of the University of São PauloSão Paulo05508-030Brazil Department of Chemical Engineering Biotechnology and Materials(DIQBM)FCFMUniversidad de ChileSantiago8370456Chile

Non-dimensional similarity groups and analytically solvable proximity equations can be used to estimate integral fluid film parameters of elastohydrodynamically lubricated(EHL)*** this contribution,we demonstrate that machine learning(ML)and artificial intelligence(AI)approaches(support vector machines,Gaussian process regressions,and artificial neural networks)can predict relevant film parameters more efficiently and with higher accuracy and flexibility compared to sophisticated EHL simulations and analytically solvable proximity equations,*** this purpose,we use data from EHL simulations based upon the full-system finite element(FE)solution and a Latin hypercube *** verify that the original input data are required to train ML approaches to achieve coefficients of determination above *** is revealed that the architecture of artificial neural networks(neurons per layer and number of hidden layers)and activation functions influence the prediction *** impact of the number of training data is exemplified,and recommendations for a minimum database size are *** ultimately demonstrate that artificial neural networks can predict the locally-resolved film thickness values over the contact domain 25-times faster than FE-based EHL simulations(R^(2) values above 0.999).We assume that this will boost the use of ML approaches to predict EHL parameters and traction losses in multibody system dynamics simulations.

关键词： machine learning elastohydrodynamic lubrication film thickness support vector machine Gaussian process regression artificial neural network

A visual analytics workflow for probabilistic modeling

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Visual Informatics 2023年第2期7卷 72-84页

作者： Julien Klaus Mark Blacher andreas Goral Philipp Lucas Joachim Giesen Friedrich Schiller University Jena Germany

Probabilistic programming is a powerful means for formally specifying machine learning *** inference engine of a probabilistic programming environment can be used for serving complex queries on these *** of the current research in probabilistic programming is dedicated to the design and implementation of highly efficient inference *** less research aims at making the power of these inference engines accessible to non-expert *** programming means writing *** many potential users from promising application areas such as the social sciences lack programming *** prompted recent efforts in synthesizing probabilistic programs directly from ***,working with synthesized programs still requires the user to read,understand,and write some code,for instance,when invoking the inference engine for answering ***,we present an interactive visual approach to synthesizing and querying probabilistic programs that does not require the user to read or write code.

关键词： Probabilistic inference Bayesian network Structured query language Table-based visualization

Microencapsulated paraffin as a tribological additive for advanced polymeric coatings

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Friction 2023年第10期11卷 1939-1952页

作者： Reza GHEISARI Mariela VAZQUEZ Vasilis TSIGKIS Ali ERDEMIR Karen L.WOOLEY andreas A.POLYCARPOU J.Mike Walker’66 Department of Mechanical Engineering Texas A&M UniversityCollege Station 77843USA Department of Chemistry Texas A&M UniversityCollege Station 77843USA Department of Materials Science&Engineering Texas A&M UniversityCollege Station 77843USA Department of Chemical Engineering Texas A&M UniversityCollege Station 77843USA

Numerous tribological applications,wherein the use of liquid lubricants is infeasible,require adequate dry *** the use of polymers as an effective solution for dry sliding tribological applications,their poor wear resistance prevents the utilization in harsh industrial *** methods are typically implemented to tackle the poor wear performance of polymers,however sacrificing some of their mechanical/tribological ***,we discussed the introduction of a novel additive,namely microencapsulated phase change material(MPCM)into an advanced polymeric ***,paraffin was encapsulated into melamine-based resin,and the capsules were dispersed in an aromatic thermosetting co-polyester(ATSP)*** found that the MPCM-filled composite exhibited a unique tribological behavior,manifested as“zero wear”,and a super-low coefficient of friction(COF)of *** developed composite outperformed the state-of-the-art polytetrafluoroethylene(PTFE)-filled coatings,under the experimental conditions examined herein.

关键词： microencapsulated phase change material(MPCM) friction reduction additive advanced polymeric coating

Resource-specific Orders in European Day-ahead Market Under Different Pricing Rules

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Journal of Modern Power Systems and Clean Energy 2023年第3期11卷 757-769页

作者： Ilias G.Marneris andreas V.Ntomaris Pandelis N.Biskas Grigorios A.Dourbois Department of Electrical and Computer Engineering Aristotle University of ThessalonikiThessaloniki 54124Greece

This paper addresses two issues that concern the electricity market participants under the European day-ahead market(DAM)framework,namely the feasibility of the attained schedules and the non-confiscation of cleared *** address the first issue,new resource-specific orders,i.e.,thermal orders for thermal generating units,demand response orders for load responsive resources,and energy limited orders for storage resources,are proposed and incorporated in the existing European DAM clearing *** address the second issue,two approaches which lead to a non-confiscatory market are analyzed:①discriminatory pricing with side-payments(***);and②non-discriminatory pricing excluding out-ofmoney orders(European paradigm).A comparison is performed between the two approaches to investigate the most appropriate pricing rule in terms of social welfare,derived revenues for the sellers,and efficiency of the attained *** proposed model with new resource-specific products is evaluated in a European test system,achieving robust *** feasibility of the attained schedules is demonstrated when using resource-specific orders compared with block ***,the results indicate the supremacy of discriminatory pricing with side-payments compared with the current European pricing rule.

关键词： Day-ahead market demand response energy storage non-confiscatory market pricing thermal order