检索结果-南通市图书馆

IoV and Blockchain-Enabled Driving Guidance Strategy in Complex Traffic Environment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Communications 2023年第12期20卷 230-243页

作者： Yuchuan Fu Changle Li tom H.Luan Yao Zhang State Key Laboratory of Integrated Services Networks Xidian UniversityXi’an 710071China Research Institute of Smart Transportation Xidian UniversityXi’an 710071China Northwestern Polytechnical University Xi’an 710072China

Diversified traffic participants and complex traffic environment(e.g.,roadblocks or road damage exist)challenge the decision-making accuracy of a single connected and autonomous vehicle(CAV)due to its limited sensing and computing *** Internet of Vehicles(IoV)to share driving rules between CAVs can break limitations of a single CAV,but at the same time may cause privacy and safety *** tackle this problem,this paper proposes to combine IoV and blockchain technologies to form an efficient and accurate autonomous guidance ***,we first use reinforcement learning for driving decision learning,and give the corresponding driving rule extraction ***,an architecture combining IoV and blockchain is designed to ensure secure driving rule ***,the shared rules will form an effective autonomous driving guidance strategy through driving rules selection and action *** simulation proves that the proposed strategy performs well in complex traffic environment,mainly in terms of accuracy,safety,and robustness.

关键词： autonomous driving guidance blockchain communication range Internet of Vehicles reinforcement learning

Inclusive Education in Wales:Interpreting Discourses of Values and Practice Using Critical Policy Analysis

在线全文

学校读者我要写书评

暂无评论

ECNU Review of Education 2022年第2期5卷 258-283页

作者： Cathryn Knight tom Crick Swansea University

Purpose:This paper provides a detailed analysis of inclusive education policies in the context of major system reform in Wales,United *** is currently undergoing the most significant changes to its education system since political devolution from the *** in *** to these changes is the new Curriculum for Wales and the Additional Learning Needs(ALN)regulations;alongside these and wider system-level reforms,there is an ambition to create an inclusive education system in *** paper explores how inclusion is articulated and communicated within the key policy and guidance documents,using two continuums-"practice"and"values"to map and interpret these ***/Approach/Methods:This paper uses critical policy analysis to make sense of these various inclusive education policy reforms in ***:The analysis reveals that despite a foregrounded commitment to inclusion,there is disparity both within and between the policy and guidance ***/Value:The paper highlights the lack of coherence of key messages articulated through education policy documentation in Wales,providing insight into the emerging national education system reforms,as well as developing an approach for evaluating inclusive education systems inotherjurisdictions.

关键词： Additional learning needs critical policy analysis curriculum reform inclusion special educational needs Wales

Geochemical,mineralogical,and petrological analyses for the interpretation of the sedimentary environment of the Middle-Late Ordovician Majiagou Formation(northern China)as a tool for more effective gas exploration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2022年第6期19卷 2519-2532页

作者： Jie Gao Da-Wei Lv A.J.(tom) van Loon Dun Wu Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals Shandong University of Science and TechnologyQingdaoShandong266590China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyShandong266071China College of Earth Science and Engineering Shandong University of Science and TechnologyShandong266590China Exploration Research Institute Anhui Provincial Bureau of Coal GeologyHefeiAnhui230088China

Core samples from the deeply buried Ordovician Majiagou Formation below the Huainan Coalfield(E China) have been investigated for their carbonate types,major and trace elements(including rare earth elements) and C and O isotopes,The objective was to get a better insight into the possible occurrences of gas(and possibly oil) derived from Carboniferous *** was found that the carbonates are dolomites with strongly varying amounts of CaO and *** low concentrations of SiO_(2),Al_(2)O_(3),and Fe_(2)O_(3)indicate deposition in a normal marine environment with little terrigenous input,The Na_(2)O/K_(2)O,Fe/Mn and Sr/Ba ratios,as well as the Ga values indicate mainly a marine salinity and a hot and humid *** slight depletion of Ce and Eu,the depletion of heavy rare earth elements(HREE) and the enrichment of light rare earth elements(LREE) indicate deposition in a reducing *** thus appears that the Majiagou Formation below the Huainan Coalfield closely resembles that in the eastern part of the Ordos Basin,where several gas reservoirs are present,so that the Majiagou Formation under the Huainan Coalfield represents a promising target for hydrocarbon exploration.

关键词： Majiagou Formation Middle Ordovician Major-element analysis REE analysis Trace-element analysis Hydrocarbon exploration

Semantics all the way down:the Semantic Web and open science in big earth data

在线全文

学校读者我要写书评

暂无评论

Big Earth Data 2017年第1期1卷 159-172页

作者： tom Narock Adam Shepherd Math Physics and Computer StudiesNotre Dame of Maryland UniversityBaltimoreMDUSA Marine Chemistry and geochemistry Woods hole Oceanographic institutionWoods holeMaUSA

Semantic technologies have emerged as a prominent research area within Big Earth *** technologies have provided significant benefits for data discovery and ***,the formality of the Semantic Web,in languages such as the Web Ontology Language(OWL),does not always integrate well with the numerical,statistical,and geometric methods of the *** prominent challenges in this area are how to semantically model individual measurements and what to do when geoscience needs are not addressed by languages such as *** has led to a fragmented Big Earth Data community with either no solution or incompatible semantic *** use an oceanographic example to highlight the limitations and challenges surrounding the semantic encoding of observations and the use of semantics during *** then present potential solutions to each challenge showing that a full end-to-end application of semantic technologies is not only feasible,but beneficial to Big Earth Data.

关键词： Semantic Web provenance open science

Synergistic interactions between the charge‐transport and mechanical properties of the ionic‐liquid‐based solid polymer electrolytes for solid‐state lithium batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2023年第11期5卷 44-53页

作者： Ashutosh Agrawal Saeed Yari Hamid Hamed tom Gouveia Rongying Lin Mohammadhosein Safari Institute for Materials Research(IMOimomec) UHasseltHasseltBelgium Energyville GenkBelgium Solvionic ToulouseFrance IMEC Division IMOMEC DiepenbeekBelgium

The performance sensitivity of the solid‐state lithium cells to the synergistic interactions of the charge‐transport and mechanical properties of the electrolyte is well acknowledged in the literature,but the quantitative insights therein are very ***,the charge‐transport and mechanical properties of a polymerized ionic‐liquid‐based solid electrolyte are *** transference number and diffusion coefficient of lithium in the concentrated solid electrolyte are measured as a function of concentration and stack *** elastoplastic behavior of the electrolyte is quantified under compression,within a home‐made setup,to substantiate the impact of stack pressure on the stability of the Li/electrolyte interface in the symmetric lithium *** results spotlight the interaction between the concentration and thickness of the solid electrolyte and the stack pressure in determining the polarization and stability of the solid‐state lithium batteries during extended cycling.

关键词： battery diffusion pressure solid state transference

MicroRNA rules： Made to be broken

在线全文

学校读者我要写书评

暂无评论

Frontiers in Biology 2013年第5期8卷 468-474页

作者： P. Shannon PENDERGRAST tom VOLPE Ymir Genomics 516 Green Street 1A Cambridge MA 02139 USA Department of Cell andMolecular Biology Feinberg School of Medicine Northwestern University 303 East Chicago Avenue Chicago 1L 60611 USA

MicroRNAs （miRNAs） are important post-transcriptional regulators of gene expression. For over a decade the deluge of research describing the biogenesis and activity of miRNAs has lead researchers to postulate rules to help make sense of the enormous amount of data produced. These rules are repeated in miRNA research papers and reviews. While these rules have been helpful one must be conscious of their limitations or risk missing future breakthroughs. Here we describe some of the most commonly stated rules, the reasoning behind their formation, their uses, and limitations.

关键词： microRNA post-transcriptional gene regulation mRNA 3' UTR conservation rule seed pairing rule biogenesis rule mechanism of action rule

A Probabilistic Trust Model and Control Algorithm to Protect 6G Networks against Malicious Data Injection Attacks in Edge Computing Environments

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第10期141卷 631-654页

作者： Borja Bordel Sánchez Ramón Alcarria tomás Robles Department of Computer Systems Universidad Politécnica de MadridMadrid28031Spain Department of Geospatial Engineering Universidad Politécnica de MadridMadrid28031Spain

Future 6G communications are envisioned to enable a large catalogue of pioneering *** will range from networked Cyber-Physical Systems to edge computing devices,establishing real-time feedback control loops critical for managing Industry 5.0 deployments,digital agriculture systems,and essential *** provision of extensive machine-type communications through 6G will render many of these innovative systems autonomous and *** full automation will enhance industrial efficiency significantly,it concurrently introduces new cyber risks and *** particular,unattended systems are highly susceptible to trust issues:malicious nodes and false information can be easily introduced into control ***,Denialof-Service attacks can be executed by inundating the network with valueless *** anomaly detection schemes require the entire transformation of the control software to integrate new steps and can only mitigate anomalies that conform to predefined mathematical *** based on an exhaustive data collection to detect anomalies are precise but extremely *** models,with their limited understanding of mobile networks,can achieve precision rates no higher than 75%.Therefore,more general and transversal protection mechanisms are needed to detect malicious behaviors *** paper introduces a probabilistic trust model and control algorithm designed to address this *** model determines the probability of any node to be *** channels are pruned for those nodes whose probability is below a given *** trust control algorithmcomprises three primary phases,which feed themodel with three different probabilities,which are weighted and ***,anomalous nodes are identified using Gaussian mixture models and clustering ***,traffic patterns are studied using digital Bessel functions and the functional scalar ***,the in

关键词： 6G networks noise injection attacks Gaussian mixture model Bessel function traffic filter Volterra filter

The hyperpycnite problem: comment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Palaeogeography 2019年第3期8卷 314-320页

作者： A.J.(tom) van Loon Heiko Hüneke Thierry Mulder Geocom Consulting Valle del Portet 17 03726 Benitachell Spain College of Earth Science and Engineering Shandong University of Science and Technology Qingdao 266590 Shandong China Institute of Geography and Geology Greifswald University Greifswald Germany UMR CNRS EPOC University of Bordeaux Allee Geoffroy St-Hilaire 33615 Pessac Cedex France

A recent review article("The hyperpycnite problem") by Shanmugam(Journal of Palaeogeography 7(3):197–238,2018) in this journal has some shortcomings, comes to scientifically incorrect conclusions, and calls for student education in a way that would significantly diminish the students’ changes for a geological career. Having studied--and still studying--hyperpycnites in the field, it seems only appropriate to inform the readers of this journal about our concerns regarding the review article mentioned ***, the article by Shanmugam(Journal of Palaeogeography 7(3):197–238, 2018) is not a review paper but rather a comment, criticizing al researchers who have come to the conclusion, on the basis of both field research and theory,that hyperpycnal flows result in sediments(hyperpycnites) with characteristics that make it possible to distinguish them from deposits formed in another way. This is also the essence of Shanmugam’s comment: as he states himself, he is"an ardent critic of al genetic facies models".

关键词： review Shanmugam critic

FORCE RIPPLE SUPPRESSION TECHNOLOGY FOR LINEAR MOTORS BASED ON BACK PROPAGATION NEURAL NETWORK

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 2008年第2期21卷 13-16页

作者： ZHANG Dailin CHEN Youping AI Wu ZHOU Zude KONG Ching tom School of Mechanical Engineering Huazhong University of Science and Technology Wuhan 430074 China Institute of Precision EngTneering The Chinese University of Hong Kong Hong Kong China

Various force disturbances influence the thrust force of linear motors when a linear motor （LM） is running. Among all of force disturbances, the force ripple is the dominant while a linear motor runs in low speed. In order to suppress the force ripple, back propagation（BP） neural network is proposed to learn the function of the force ripple of linear motors, and the acquisition method of training samples is proposed based on a disturbance observer. An off-line BP neural network is used mainly because of its high running efficiency and the real-time requirement of the servo control system of a linear motor. By using the function, the force ripple is on-line compensated according to the position of the LM. The experimental results show that the force ripple is effectively suppressed by the compensation of the BP neural network.

关键词： Linear motor (LM) Back propagation(BP) algorithm Neural network Anti-disturbance technology