检索结果-南通市图书馆

Nomore blind dates with calcite: Fluid-flow vs. fault-slip along the Očkov thrust, Prague Basin

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2021年第4期12卷 163-174页

作者： nick M.W.Roberts JiříŽák František Vacek JiříSláma Geochronology and Tracers Facility British Geological SurveyEnvironmental Science CentreNottingham NG125GGUK Institute of Geology and Paleontology Faculty of ScienceCharles UniversityAlbertov 6Prague 12843Czech Republic Department of Mineralogy and Petrology National MuseumVáclavskénáměstí68Prague 11579Czech Republic Institute of Geology Czech Academy of Sciencesv.v.i.Rozvojová269Prague 16500Czech Republic

Dating of fracture-filling calcitewith U-Pb geochronology is becoming a rapidly adopted technique for determining the absolute timing of brittle deformation in the upper *** calcite is a desirable target,as it precipitates between individual fault slip displacement events,and provides additional kinematic *** we present a case study of slickenfibres formed on the Očkov thrust in the Lower Palaezoic Prague Basin,Bohemian Massif,utilising a combination of petrographic and in situ *** demonstrate that slickenfibre external textures can be preserved,whilst internally primary textures are removed by fluid infiltration and recrystallization,leading to variable U and Pb *** slickenfibre yielded a date of ca.250 Ma,which we interpret as recording fault slip along the Očkov *** cross-cutting slickenfibre yielded more scattered U-Pb data,with an imprecise apparent age around ca.95 *** slickenfibre is recrystallised,destroying the primary textures,and exhibits element *** meaning of this younger apparent age is therefore questionable;whereas it likely reflects Cretaceous U and Pb mobility assisted by fluid-flow along the fault plane,it may not reflect a period of fault *** results demonstrate that slickenfibre-based U-Pb dates do not unequivocally relate to fault motion,and that petrographic and elemental analyses are important requirements for interpreting calcite U-Pb data.

关键词： U-Pb geochronology Calcite Fault dating Fluid-flow Prague Basin LA-ICP-MS

The dynamic Archean to Paleoproterozoic crustal evolution of Brazil:Preface

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

Geoscience Frontiers 2022年第5期13卷 106-109页

作者： Hugo Moreira Mathias Schannor Kathryn Cutts nick M.W.Roberts CNRS-UMR5243 Géosciences MontpellierUniversitéde MontpellierFrance Department of Earth Sciences University of CambridgeUK Department of Earth Sciences Freie Universität BerlinBerlinGermany Faculdade de Geologia Universidade do Estado do Rio de JaneiroBrazil Geological Survey of Finland P.O.Box 96FI-02151 EspooFinland Geochronology and Tracers Facility British Geological SurveyNottinghamUK

Brazil is the largest country in South America and contains the majority of the exposed Archean and Paleoproterozoic crust on the continent. As such, Brazil provides a natural laboratory for studies of the ancient Earth. In this Special Issue, contributions reflect the dynamic and protracted growth and reworking of former continents during a time frame of over a billion years, and depict how changes across the evolution of plate tectonics may have influenced the evolution of the interlinked crust-ocean-atmospheric Earth cycles over this period.

关键词： evolution Paleo Earth

Feasibility of hydrogen fuel cell technology for railway intercity services:a case study for the Piedmont in North Carolina

在线全文

学校读者我要写书评

暂无评论

Railway Engineering Science 2021年第3期29卷 258-270页

作者： Orwell Madovi Andreas Hoffrichter nick Little Shanelle N.Foster Raphael Isaac Department of Electrical and Computer Engineering Michigan State University428 South Shaw LaneRoom 2120East LansingMI 48824USA Center for Railway Research&Education Broad College of BusinessMichigan State University3535 Forest RoadRoom C-36LansingMI 48910USA

Diesel fuel combustion results in exhaust containing air pollutants and greenhouse gas *** railway vehicles use diesel fuel as their energy *** emissions,as well as concerns about economical,alternative power supply,have driven efforts to move to hydrogen motive *** fuel cell technology applied to railways offers the opportunity to eliminate harmful exhaust emissions and the potential for a low-or zero-emission energy supply ***,only multiple-unit trains with hydrail technology operate *** of an Integrated Hybrid Train Simulator for intercity railway is *** proposed tool incorporates the effect of powertrain components during the wheel-to-tank *** to its predecessors,the proposed reconfigurable tool provides high fidelity with medium requirements and minimum computation *** train simulation and the federal government’s Greenhouse gases,Regulated Emissions,and Energy use in Transportation(GREET)model are used in combination to evaluate the feasibility of various train and powertrain *** Piedmont intercity service operating in North Carolina is used as a case *** study includes six train configurations and powertrain options as well as nine hydrogen supply options in addition to the diesel *** results show that a hydrail option is not only feasible,but a low-or zero-carbon hydrogen supply chain could be possible.

关键词： Hydrail Life cycle assessment Criteria pollutants Well-to-wheel Single train simulation Modeling

Editorial for Special Issue on Multi-modal Representation Learning

在线全文

学校读者我要写书评

暂无评论

Machine Intelligence Research 2024年第4期21卷 615-616页

作者： Deng-Ping Fan nick Barnes Ming-Ming Cheng Luc Van Gool Nankai University China&ETH ZürichSwitzerland Australian National University Australia Nankai University China ETH Zürich Switzerland

The past decade has witnessed the impressive and steady development of single-modal AI technologies in several fields,thanks to the emergence of deep *** studied,however,is multi-modal AI-commonly considered the next generation of AI-which utilizes complementary context concealed in different-modality inputs to improve *** naturally learn to form a global concept from multiple modalities(i.e.,sight,hearing,touch,smell,and taste),even when some are incomplete or ***,in addition to the two popular modalities(vision and language),other types of data such as depth,infrared information,and events are also important for multi-modal learning in real-world scenes.

关键词： modal utilize incomplete

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

解析阿马蒂亚·森《以自由看待发展》

解析阿马蒂亚·森《以自由看待发展》

A multi-objective pigeon inspired optimization algorithm for fuzzy production scheduling problem considering mould maintenance

作者： Janna Miletzki，nick Broten

来源：南通市图书馆图书评论

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2019年第7期62卷 15-32页

作者： Xiaoyue FU Felix T.S.CHAN Ben NIU nick S.H.CHUNG Ting QU Department of Industrial and Systems Engineering The Hong Kong Polytechnic University College of Management Shenzhen University School of Electrical and Information Engineering Jinan University

The fuzzy production scheduling problem considering mould maintenance(FPSP-MM) is studied. The processing time and the maintenance time are represented by triangular fuzzy numbers. When tasks are executed based on the sequence provided by the fuzzy schedule, the real duration of each task needs to be known so the posteriori solution with deterministic processing times can be obtained. Therefore, the concept of the schedule robustness needs to be considered for the fuzzy problem. The robustness is considered as the optimization objective except for the fuzzy makespan in this research. To optimize these two objective functions, a multi-objective pigeon inspired optimization(MOPIO) algorithm is developed. To extend the pigeon inspired optimization(PIO) algorithm from the single-objective case to the multi-objective case, nondominated solutions are used as candidates for the leader pigeon designation and a special crowding distance is used to ensure a good distribution of solutions in both the objective space and the corresponding decision space. Furthermore, an index-based ring topology is used to manage the convergence speed. Numerical experiments on a variety of simulated scenarios show the excellent efficiency and effectiveness of the proposed MOPIO algorithm by comparing it with other algorithms.

关键词： fuzzy production scheduling mould maintenance pigeon inspired optimization multi-objective

基于多光谱图像分析的温室黄瓜叶片营养元素检测与诊断

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

光谱学与光谱分析 2010年第1期30卷 210-213页

作者：杨玮 nick Sigrimis 李民赞中国农业大学现代精细农业系统集成研究教育部重点实验室北京100083 Department of Agricultural Engineering Agricultural University of Athens Athens Greece

采用CCD照相机加滤光片的方法,进行了基于多光谱图像分析的温室黄瓜叶片营养元素检测与诊断研究。对近红外光波段的叶片图像分别采用遗传算法和分水岭算法进行阈值选取,对两种算法二值化的效果进行对比分析,结果表明采用分水岭方法分割... 详细信息

采用CCD照相机加滤光片的方法,进行了基于多光谱图像分析的温室黄瓜叶片营养元素检测与诊断研究。对近红外光波段的叶片图像分别采用遗传算法和分水岭算法进行阈值选取,对两种算法二值化的效果进行对比分析,结果表明采用分水岭方法分割的图像,边界清晰,噪音小,与原图像更接近,背景和叶片分离的效果更好。NDVI与叶面积、叶片含氮量之间有明显的线性关系,R^2分别为:0.820 9和0.701 7。GNDVI与叶面积、叶片的含氮量之间也有较高的线性关系,R^2分别为:0.762 5和0.676 2。RVI与叶面积之间有明显的线性相关关系,R^2为0.857 7,但与叶片的含氮量之间则包含了非线性成分,R^2为0.598 8。以上结果表明,CCD照相机加滤光片可以作为一种作物含氮量信息的快速诊断方法。

关键词：多光谱氮含量 NDVI 黄瓜图像处理

Patch-guided facial image inpainting by shape propagation

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第2期10卷 232-238页

作者： Yue-ting ZHUANG Yu-shun WANG Timothy K. SHIH nick C. TANG Institute of Artilicial Intelligence School of Computer Science and Technology Zhejiang University Hangzhou 310027 China Department of Compter Science National Taipei University of Education Taipei 10671 Taiwan China Department of Comp.ter Science and Information Engineering Tamkang University Taipei 25137 Taiwan China

Images with human faces comprise an essential part in the imaging realm. Occlusion or damage in facial portions will bring a remarkable discomfort and information loss. We propose an algorithm that can repair occluded or damaged facial images automatically, named ‘facial image inpainting＇. Inpainting is a set of image processing methods to recover missing image portions. We extend the image inpainting methods by introducing facial domain knowledge. With the support of a face database, our approach propagates structural information, i.e., feature points and edge maps, from similar faces to the missing facial regions. Using the interred structural information as guidance, an exemplar-based image inpainting algorithm is employed to copy patches in the same face from the source portion to the missing portion. This newly proposed concept of facial image inpainting outperforms the traditional inpainting methods by propagating the facial shapes from a face database, and avoids the problem of variations in imaging conditions from different images by inferring colors and textures from the same face image. Our system produces seamless faces that are hardly seen drawbacks.

关键词： Image inpainting Face reconstruction Feature point extraction

Data Temperature Informed Streaming for Optimising Large-Scale Multi-Tiered Storage

在线全文

学校读者我要写书评

暂无评论

Big Data Mining and Analytics 2024年第2期7卷 371-398页

作者： Dominic Davies-Tagg Ashiq Anjum Ali Zahir Lu Liu Muhammad Usman Yaseen nick Antonopoulos Department of Computing University of DerbyDerbyDE221GBUK Department of Informatics University of LeicesterLeicesterLE17RHUK Department of Computer Science COMSATS University IslamabadIslamabad 45550Pakistan Edinburgh Napier University EdinburghEH114BNUK

Data temperature is a response to the ever-growing amount of *** data have to be stored,but they have been observed that only a small portion of the data are accessed more frequently at any one *** leads to the concept of hot and cold *** data can be migrated away from high-performance nodes to free up performance for higher priority *** studies classify hot and cold data primarily on the basis of data age and usage *** present this as a limitation in the current implementation of data *** is due to the fact that age automatically assumes that all new data have priority and that usage is purely *** propose new variables and conditions that influence smarter decision-making on what are hot or cold data and allow greater user control over data location and their *** identify new metadata variables and user-defined variables to extend the current data temperature *** further establish rules and conditions for limiting unnecessary movement of the data,which helps to prevent wasted input output(I/O)*** also propose a hybrid algorithm that combines existing variables and new variables and conditions into a single data *** proposed system provides higher accuracy,increases performance,and gives greater user control for optimal positioning of data within multi-tiered storage solutions.

关键词： data temperature hot and cold data multi-tiered storage metadata variable multi-temperature system