检索结果-南通市图书馆

Predicting missing Energy Performance Certificates:Spatial interpolation of mixture distributions

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Energy and AI 2024年第2期16卷 200-212页

作者： Marc Grossouvre Didier Rullière Jonathan Villot Mines Saint-Etienne CNRSUMR 6158 LIMOSInstitut Henri FayolDepartement GMIEspace Fauriel29 rue PonchardierSaint-Etienne42023France U.R.B.S.SAS Bâtiment des Hautes Technologie20 Rue Professeur Benoit LAURASSaint-Etienne42000France Mines Saint-Etienne Univ Clermont AuvergneCNRSUMR 6158 LIMOSInstitut Henri FayolEspace Fauriel29 rue PonchardierSaint-Etienne42023France Mines Saint-Etienne Univ LyonCNRSUniv Jean MonnetUniv Lumiere Lyon 2Univ Lyon 3 Jean MoulinENS LyonENTPEENSA LyonUMR 5600 EVSInstitut Henri FayolSaint-Etienne42023France

Mass renovation goals aimed at energy savings on a national scale require a significant level of public financial *** identify target buildings,decision-makers need a thorough understanding of energy *** Performance Certificates(EPC)provide information about areas of space,such as land plots or a building’s footprint,without specifying exact *** cover only a fraction of *** paper demonstrates that learning from observed EPCs to predict missing ones at the building level can be viewed as a spatial interpolation problem with uncertainty both on input and output *** Kriging methodology is applied to random fields observed at random locations to determine the Best Linear Unbiased Predictor(BLUP).Although the Gaussian setting is lost,conditional moments can still be *** are admissible,even with missing *** present applications using both simulated and real data,with a specific case study of a city in France serving as an example.

关键词： Climate governance Energy efficiency Multi-scale processes Areal data Change of support

耐力项目运动员的动脉纤维化:血管造影的特点及分型

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2014年第6期 591-591页

作者： o.rouvière P.Feugier J.P.Gutiérrez J.M.Chevalier 赵明 Department of Urinary and Vascular Radiology Hospices Civils de LyonHpital Edouard HerriotPavillon P Radio5 place d’ArsonvalLyon 69003France

摘要目的描述动脉纤维化的血管造影特点,评估相关病灶的模式。材料与方法本试验遵循赫尔辛基宣言。回顾性分析从1998年1月—2009年11月接受手术并经组织学证

关键词：髂总动脉动脉纤维化血管造影髂外动脉

Correlation of work function and stacking fault energy through Kelvin probe force microscopy and nanohardness in diluteα-magnesium

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2024年第1期12卷 237-250页

作者： Yigit Türe Ali Arslan Kaya Hüseyin Aydin Jiang Peng Servet Turan Eskisehir Technical University Porsuk Vocational SchoolElectronics and Automation DepartmentProgram of MechatronicsEskisehirTurkey Mugla Sitki Kocman University Engineering FacultyMetallurgy and Materials Engineering DepartmentMuglaTurkey Hüseying Aydın TUBITAK MRCTurkey Jiang Peng Chongqing UniversityChina Eskisehir Technical University Engineering FacultyMaterials Science and Engineering DepartmentEskisehirTurkey

Electronic interactions of the Group 2A elements with magnesium have been studied through the dilute solid solutions in binary Mg-Ca,Mg-Sr and Mg-Ba *** investigation incorporated the difference in the‘Work Function'(ΔWF)measured via Kelvin Probe Force Microscopy(KPFM),as a property directly affected by interatomic bond types,*** electronic structure,nanoindentation measurements,and Stacking Fault Energy values reported in the *** was shown that the nano-hardness of the solid-solutionα-Mg phase changed in the order of Mg-Ca>Mg-Sr>***,it was shown,by also considering the nano-hardness levels,that SFE of a solid-solution is closely correlated with its‘Work Function'***-hardness measurements on the eutectics andΔWF difference between eutectic phases enabled an assessment of the relative bond strength and the pertinent electronic structures of the eutectics in the three *** withΔWF and at least qualitative verification of those computed SFE values with some experimental measurement techniques were considered important as those computational methods are based on zero Kelvin degree,relatively simple atomic models and a number of *** asserted by this investigation,if the results of measurement techniques can be qualitatively correlated with those of the computational methods,it can be possible to evaluate the electronic structures in alloys,starting from binary systems,going to ternary and then multi-elemental *** investigation has shown that such a qualitative correlation is *** all,the SFE values are not treated as absolute values but rather become essential in comparative investigations when assessing the influences of alloying elements at a fundamental level,that is,free electron density *** study indicated that the principles of‘electronic metallurgy'in developing multi-elemental alloy systems can be followed via practical experimental methods,i.e.ΔWF measurements using KPF

关键词： Mg alloys Dilute alloys Work function Stacking fault energy Kelvin probe force microscopy Short range order Miedema Nanoindentation Eutectics

维普期刊数据库

前列腺癌经直肠HIFU消融:T2加权和动态对比增强MRI监测局部复发

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2010年第2期 189-189页

作者： o.rouvière N.Girouin L.Glas A.B.Cheikh A.Gelet F.Mège Lechevallier 袁瑛 Department of Urinary and Vascular Radiology Hospices Civils de LyonHpital Edouard HerriotLyon 69437France

目的是评价前列腺癌经高强度聚焦超声(HIFU)消融术后,T2WI和动态对比增强MRI(DCE MRI)检测局部肿瘤复发的能力。经HIFU消融术后生化复发的前列腺癌病人59例被纳入研究

关键词：前列腺癌 T2 局部复发 HIFU 动态对比增强 MRI

前列腺癌的诊断:多参数MR联合可视超声靶向活检、经直肠超声MR融合影像引导下活检与系统性活检的比较——前瞻性多中心研究

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2013年第5期 482-482页

作者： P.Puech o.rouvière R.renard-Penna A.Villers P.Devos M.Colombel 王焕军 Department of Genitourinary Radiology Hpital Claude Huriez

摘要目的比较2种活检方法即MR靶向活检(TB)与系统性活检(SB)的结果。材料与方法本研究为经机构审查委员会批准的多中心研究,获得了所有病人的知情同意。2009年5月—2011年1月,共纳入疑诊前列腺癌且MRI可疑异常者95例。所有病人均接受12... 详细信息

摘要目的比较2种活检方法即MR靶向活检(TB)与系统性活检(SB)的结果。材料与方法本研究为经机构审查委员会批准的多中心研究,获得了所有病人的知情同意。2009年5月—2011年1月,共纳入疑诊前列腺癌且MRI可疑异常者95例。所有病人均接受12针系统性穿刺和经直肠超声引导下的4针靶向穿刺,其中2针为可视性的(TBCoG),2针采用经直肠超声-MR融合软件(TB-FUS)引导。对SB和TB阳性的癌灶和样本质量(核心癌灶长度的平均最长值,Gleason评分)进行比较。有临床意义的癌灶定义为SB下核心癌灶长度≥3 mm或任何Gleason评分超过3分的癌灶,以及TB下任何长度的癌灶。统计分析包括t检验、配

关键词：靶向活检 TB 癌灶前列腺癌经直肠超声引导经直肠超声多中心研究 MR

Frequency stabilization of C-band semiconductor lasers through a SiN photonic integrated circuit

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Photonics research 2024年第8期12卷 1619-1626页

作者： ALESSANDRo BRUGNoNI ALI EMre KAPLAN VALERIo VITALI KYLE BoTTRILL MICHELE re PERIKLIS PETRoPoULoS CoSIMo LACAVA ILARIA CRISTIANI Photonics Group Department of ElectricalComputer and Biomedical EngineeringUniversity of PaviaPavia 27100Italy optoelectronics research Centre University of SouthamptonSouthampton SO171BJUK Huawei Technologies Italia S.r.l Centro direzionale MilanoSegrate 20054Italy

Integrated semiconductor lasers represent essential building blocks for integrated optical components and circuits and their stability in frequency is fundamental for the development of numerous frontier applications and engineering *** dense optical circuits are considered,the stability of integrated laser sources can be impaired by the thermal cross-talk generated by the action of neighboring components,leading to a deterioration of the long-term system performance(on the scale of seconds).In this work we show the design and the experimental characterization of a silicon nitride photonic integrated circuit(PIC)that is able to frequency stabilize 16semiconductor lasers,simultaneously.A stabilized 50 GHz-spaced two-channel system is demonstrated through the detection of the related beating note and the stability of the resulting waveform is characterized via the use of artificially induced thermal cross-talk stimuli.

关键词： stabilization stability impaired

维普期刊数据库

经直肠高频聚焦超声前列腺癌消融术:用对比剂增强超声检查评估坏死组织

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2011年第4期 381-381页

作者： o.rouvière L.Glas N.Girouin F.Mège-Lechevallier A.Gelet E.Dantony 田凤娟 Departments of Urinary and Vascular Radiology PathologyUrologyand BiostatisticsHpital Edouard HerriotHospices Civils de Lyon

目的评估高频聚焦超声(HIFU)前列腺癌消融术后的对比剂增强超声表现及与HIFU后活检结果的相关性。材料与方法本研究经伦理委员会批准,所有病人签署书面知情同意书。28例前列腺癌病人参与本次HIFU消融治疗,在治疗前进行对比增强超声检查... 详细信息

目的评估高频聚焦超声(HIFU)前列腺癌消融术后的对比剂增强超声表现及与HIFU后活检结果的相关性。材料与方法本研究经伦理委员会批准,所有病人签署书面知情同意书。28例前列腺癌病人参与本次HIFU消融治疗,在治疗前进行对比增强超声检查,治疗后进行了钆对比剂MR

关键词：前列腺癌对比剂增强聚焦超声消融术超声检查

Topology reduction through machine learning to accelerate dynamic simulation of district heating

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Energy and AI

Energy and AI 2024年第3期17卷 247-260页

作者： Dubon Rodrigue Mohamed Tahar Mabrouk Bastien Pasdeloup Patrick Meyer Bruno Lacarrière IMT Atlantique GEPEAUMR CNRS 61444 rue Alfred KastlerNantesF-44307France IMT Atlantique Lab-STICCUMR CNRS 6285655 Av.du TechnopoleBrestF-29238France

District heating networks (DHNs) provide an efficient heat distribution solution in urban areas, accomplished through interconnected and insulated pipes linking local heat sources to local consumers. This efficiency is further enhanced by the capacity of these networks to integrate renewable heat sources and thermal storage systems. However, integration of these systems adds complexity to the physical dynamics of the network, necessitating complex dynamic simulation models. These dynamic physical simulations are computationally expensive, limiting their adoption, particularly in large-scale networks. To address this challenge, we propose a methodology utilizing Artificial Neural Networks (ANNs) to reduce the computational time associated with the DHNs dynamic simulations. our approach consists in replacing predefined clusters of substations within the DHNs with trained surrogate ANNs models, effectively transforming these clusters into single nodes. This creates a hybrid simulation framework combining the predictions of the ANNs models with the accurate physical simulations of remaining substation nodes and pipes. We evaluate different architectures of Artificial Neural Network on diverse clusters from four synthetic DHNs with realistic heating demands. results demonstrate that ANNs effectively learn cluster dynamics irrespective of topology or heating demand levels. Through our experiments, we achieved a 27% reduction in simulation time by replacing 39% of consumer nodes while maintaining acceptable accuracy in preserving the generated heat powers by sources.

关键词： District heating network Topology reduction Artificial neural networks Hybrid modeling Graph based formulation

Stability analysis of a time-delayed Van der Pol–Helmholtz–Duffing oscillator in fractal space with a non-perturbative approach

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2024年第4期76卷 22-31页

作者： Yusry o El-Dib Department of Mathematics Faculty of EducationAin Shams UniversityRoxyCairoEgypt

The time-delayed fractal Van der Pol–Helmholtz–Duffing(VPHD)oscillator is the subject of this paper,which explores its mechanisms and highlights its stability *** time-delayed technologies are currently garnering significant attention,the focus of this research remains crucially relevant.A non-perturbative approach is employed to refine and set the stage for the system under *** innovative methodologies introduced yield an equivalent linear differential equation,mirroring the inherent nonlinearities of the ***,the incorporation of quadratic nonlinearity into the frequency formula represents a cutting-edge *** analytical solution's validity is corroborated using a numerical *** conditions are ascertained through the residual Galerkin ***,it is observed that the delay parameter,in the context of the fractal system,reverses its stabilizing influence,impacting both the amplitude of delayed velocity and the *** analytical solution's precision is underscored by its close alignment with numerical ***,the study reveals that fractal characteristics emulate damping *** its applicability across diverse nonlinear dynamical systems,this non-perturbative approach emerges as a promising avenue for future research.

关键词： Van der Pol-Helmholtz-Duffing oscillator fractal space time-delay non-perturbative approach stability analysis El-Dib's frequency formula

维普期刊数据库