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可装配性研究中基于凸包技术的关键公差识别统计方法（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2015年第5期16卷 361-370页

作者： philipp ZIEGLER Sandro WARTZACK Applied Analysis University Rostock Engineering Design KTmfk FAU Erlangen-Nürnberg

目的:从公差仿真结果中获得依据,以此优化公差值及公差方案,并通过灵敏度分析来验证单个参数的改变对所得仿真结果的影响。创新点:1.根据公差技术,对凸包采取基于方差的全局敏感度分析;2.提出估计单个零件公差对装配间隙影响的方法。方... 详细信息

目的:从公差仿真结果中获得依据,以此优化公差值及公差方案,并通过灵敏度分析来验证单个参数的改变对所得仿真结果的影响。创新点:1.根据公差技术,对凸包采取基于方差的全局敏感度分析;2.提出估计单个零件公差对装配间隙影响的方法。方法:1.采用特征要素公差带凸包表示方法(图1);2.进行基于方差的全局敏感度分析(图2);3.通过灵敏度分析算法分析相对间隙和公差值的关系(图3、4和5);4.以销孔装配为例,验证该方法的可行性(图7、8和9)。结论:1.销孔连接的实验证明了基于凸包技术的全局敏感度分析的必要性;2.基于凸包的灵敏度分析方法可用于分析单个零件公差对装配间隙的影响。

关键词： T-Map 公差域可装配性敏感度分析统计公差分析

Wave propagation through disordered media without backscattering and intensity variations

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Light(Science & Applications) 2017年第1期6卷 623-629页

作者： Konstantinos G Makris Andre Brandstötter philipp Ambichl Ziad H Musslimani Stefan Rotter Crete Center for Quantum Complexity and Nanotechnology Department of PhysicsUniversity of CreteHeraklion 71003Greece Institute for Theoretical Physics Vienna University of Technology(TU-Wien)Vienna 1040Austria Department of Mathematics Florida State UniversityTallahasseeFL 32306USA

A fundamental manifestation of wave scattering in a disordered medium is the highly complex intensity pattern the waves acquire due to multi-path *** we show that these intensity variations can be entirely suppressed by adding disorder-specific gain and loss components to the *** resulting constant-intensity waves in such non-Hermitian scattering landscapes are free of any backscattering and feature perfect transmission through the *** experimental demonstration of these unique wave states is envisioned based on spatially modulated pump beams that can flexibly control the gain and loss components in an active medium.

关键词： Anderson localisation complex media non-Hermitian physics scattering

A Coupled Approach for Fluid Dynamic Problems Using the PDE Framework Peano

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Communications in Computational Physics 2012年第6期12卷 65-84页

作者： philipp Neumann Hans-Joachim Bungartz Miriam Mehl Tobias Neckel Tobias Weinzierl Chair of Scientific Computing Faculty of InformaticsTechnische Universitat MunchenBoltzmannstr.381545 GarchingGermany

We couple different flow models,i.e.a finite element solver for the Navier-Stokes equations and a Lattice Boltzmann automaton,using the framework Peano as a common *** new coupling strategy between the meso-and macroscopic solver is presented and validated in a 2D channel flow *** results are in good agreement with theory and results obtained in similar works by Latt et *** addition,the test scenarios show an improved stability of the coupledmethod compared to pure Lattice Boltzmann simulations.

关键词： Spatial coupling Lattice Boltzmann Navier-Stokes Peano

Adaptive optimisation of explosive reactive armour for protection against kinetic energy and shaped charge threats

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Defence Technology（防务技术） 2024年第10期40卷 1-12页

作者： philipp Moldtmann Julian Berk Shannon Ryan Andreas Klavzar Jerome Limido Christopher Lange Santu Rana Svetha Venkatesh University of the Federal Armed Forces Hamburg Holstenhofweg 85Hamburg 22043Germany Applied Artificial Intelligence Institute(A2I2) Deakin University75 Pigdons RdWaurn PondsVIC 3216Australia French-German Research Institute of Saint-Louis(ISL) 5 Rue de General CassagnouSaint-Louis 68300France ABSTRAO 16 Rue de Isaac NewtonPlaisance-du-Touch 31830France

We evaluate an adaptive optimisation methodology,Bayesian optimisation(BO),for designing a minimum weight explosive reactive armour(ERA)for protection against a surrogate medium calibre kinetic energy(KE)long rod projectile and surrogate shaped charge(SC)*** perform the optimisation using a conventional BO methodology and compare it with a conventional trial-and-error approach from a human expert.A third approach,utilising a novel human-machine teaming framework for BO is also *** for the optimisation is generated using numerical simulations that are demonstrated to provide reasonable qualitative agreement with reference *** human-machine teaming methodology is shown to identify the optimum ERA design in the fewest number of evaluations,outperforming both the stand-alone human and stand-alone BO *** a design space of almost 1800 configurations the human-machine teaming approach identifies the minimum weight ERA design in 10 samples.

关键词： Terminal ballistics Armour Explosive reactive armour Optimisation Bayesian optimisation

Dupilumab-associated ulcerative keratitis

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International Journal of Ophthalmology(English edition) 2022年第6期15卷 1020-1022页

作者： Matthew M Wilson philipp K Roberts Mark Daniell Corneal Service Royal Victorian Eye and Ear HospitalEast MelbourneVictoria 3002Australia Medical University of Vienna Vienna 1090Austria Department of Surgery(Ophthalmology) University of MelbourneParkvilleVIC 3013Australia Surgical Research Unit Centre for Eye Research Australia(CERA)University of MelbourneMelbourneVIC 3013Australia

Dear Editor,We present a case of a healthy 32-year-old man who developed bilateral corneal ulceration 3 wk after commencing dupilumab for atopic dermatitis. Dupilumab is a recently introduced systemic monoclonal antibody used in the treatment of moderate-to-severe atopic dermatitis, showing efficacy in clinical trials;. Several publications have reported ocular surface complications associated with dupilumab.

关键词： dermatitis clinical keratitis

Transfer learning from synthetic data for open-circuit voltage curve reconstruction and state of health estimation of lithium-ion batteries from partial charging segments

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Energy and AI 2024年第3期17卷 80-97页

作者： Tobias Hofmann Jacob Hamar Bastian Mager Simon Erhard Jan philipp Schmidt Chair of Systems Engineering for Electrical Energy Storage University of BayreuthWeiherstraße 26Bayreuth95448BavariaGermany BMW Group Petuelring 130Munich80809BavariaGermany

Data-driven models for battery state estimation require extensive experimental training data,which may not be available or suitable for specific tasks like open-circuit voltage(OCV)reconstruction and subsequent state of health(SOH)*** study addresses this issue by developing a transfer-learning-based OCV reconstruction model using a temporal convolutional long short-term memory(TCN-LSTM)network trained on synthetic data from an automotive nickel cobalt aluminium oxide(NCA)cell generated through a mechanistic model *** data consists of voltage curves at constant temperature,C-rates between C/30 to 1C,and a SOH-range from 70%to 100%.The model is refined via Bayesian optimization and then applied to four use cases with reduced experimental nickel manganese cobalt oxide(NMC)cell training data for higher use *** TL models’performances are compared with models trained solely on experimental data,focusing on different C-rates and voltage *** results demonstrate that the OCV reconstruction mean absolute error(MAE)within the average battery electric vehicle(BEV)home charging window(30%to 85%state of charge(SOC))is less than 22 mV for the first three use cases across all *** SOH estimated from the reconstructed OCV exhibits an mean absolute percentage error(MAPE)below 2.2%for these *** study further investigates the impact of the source domain on TL by incorporating two additional synthetic datasets,a lithium iron phosphate(LFP)cell and an entirely artificial,non-existing,cell,showing that solely the shifting and scaling of gradient changes in the charging curve suffice to transfer knowledge,even between different cell chemistries.A key limitation with respect to extrapolation capability is identified and evidenced in our fourth use case,where the absence of such comprehensive data hindered the TL process.

关键词： Lithium-ion battery State of health estimation Transfer learning OCV curve Partial charging Synthetic data

Impact of surface phase coexistence on the development of step-free areas on Si（111）

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Frontiers of Materials Science 2015年第2期9卷 141-146页

作者： Andreas FISSEL Ayan Roy CHAUDHURI Jan KRUGENER philipp GRIBISCH H. Jorg OSTEN Institute of Electronic Materials and Devices Leibniz University Hannover Schneiderberg 32 30167 Hannover Germany

The step-flow growth condition of Si on Si（111） near the （7×7）-＂1×1＂ surface phase transition temperature Tc are analyzed within the framework of Burton- Cabrera-Frank theory. In particular, coexistence of both surface phases well below Tc and their specific influence on the step-flow growth behavior are considered. We presume that under dynamical condition of growth, the surface initially covered by only the （7×7） phase separates into domains surrounded by ＂1×1＂ areas. On such a surface, the overall supersaturation should be reduced drastically compared to a surface with only （7×7）, resulting in much larger critical terrace width for nucleation.

关键词： molecular beam epitaxy step-flow growth mode surface superstructure silicon

Routine utilization of machine perfusion in liver transplantation:Ready for prime time?

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World Journal of Gastroenterology 2024年第11期30卷 1488-1493页

作者： Alessandro Parente Keyue Sun philipp Dutkowski AM James Shapiro Andrea Schlegel Department of Surgery Division of TransplantationUniversity of Alberta HospitalEdmonton T6G 2B7Canada Immunity and Inflammation Lerner Research InstituteClevelandOH 44195United States Swiss Hepato-Pancreato-Biliary Center Department of Visceral and Transplantation SurgeryUniversity Hospital ZurichZurich 8091Switzerland Immunity and Inflammation Digestive Disease and Surgery InstituteClevelandOH 44195United States

The last decade has been notable for increasing high-quality research and dramatic improvement in outcomes with dynamic liver *** evidence from numerous randomized controlled trials has been pooled by meta-analyses,providing the highest available evidence on the protective effect of machine perfusion(MP)over static cold storage in liver transplantation(LT).Based on a protective effect with less complications and improved graft survival,the field has seen a paradigm shift in organ *** editorial focuses on the role of MP in LT and how it could become the new“gold standard”.Strong collaborative efforts are needed to explore its effects on long-term outcomes.

关键词： Liver transplantation Machine perfusion Viability assessment Hypothermic oxygenated perfusion Normothermic machine perfusion

Extraction and Evaluation of Knowledge Entities from Scientific Documents

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Journal of Data and Information Science 2021年第3期6卷 1-5页

作者： Chengzhi Zhang philipp Mayr Wei Lu Yi Zhang Nanjing University of Science and Technology China GESIS-Leibniz-Institute for the Social Sciences Germany Wuhan University China University of Technology Sydney(UTS) Australia

As a core resource of scientific knowledge,academic documents have been frequently used by scholars,especially newcomers to a given *** the era of big data,scientific documents such as academic articles,patents,technical reports,and webpages are *** rapid daily growth of scientific documents indicates that a large amount of knowledge is proposed,improved,and used(Zhang et al.,2021).

关键词： knowledge Entities field.