检索结果-南通市图书馆

Eventual Leader Election with Weak Assumptions on Initial Knowledge,Communication Reliability,and Synchrony

Journal of Computer Science & Technology 2010年第6期25卷 1267-1281页

作者： antonio f.rnndez anta Ernesto Jimnez Michel Raynal Institute IMDEA Networks Avenida del Mar Mediterraneo EUI Universidad Politcnica de Madrid IRISA Universit de Rennes

This paper considers the eventual leader election problem in asynchronous message-passing systems where an arbitrary number t of processes can crash（t〈n,where n is the total number of processes）.It considers weak assumptions both on the initial knowledge of the processes and on the network *** precisely,initially,a process knows only its identity and the fact that the process identities are different and totally ordered（it knows neither n nor t）.Two eventual leader election protocols and a lower bound are *** first protocol assumes that a process also knows a lower bound α on the number of processes that do not *** protocol requires the following behavioral properties from the underlying network：the graph made up of the correct processes and fair lossy links is strongly connected,and there is a correct process connected to（n〈f）-α other correct processes（where f is the actual number of crashes in the considered run） through eventually timely paths（paths made up of correct processes and eventually timely links）.This protocol is not communication-efficient in the sense that each correct process has to send messages *** second protocol is communication-efficient：after some time,only the final common leader has to send messages *** protocol does not require the processes to know α,but requires stronger properties from the underlying network：each pair of correct processes has to be connected by fair lossy links（one in each direction）,and there is a correct process whose n〈f-1 output links to the rest of correct processes have to be eventually timely.A matching lower bound result shows that any eventual leader election protocol must have runs with this number of eventually timely links,even if all processes know all the processes *** addition to being communication-efficient,the second protocol has another noteworthy efficiency property,namely,be the run finite or infinite,all the local variables and message fields have

关键词： eventually timely and fair lossy links eventual leader election failure detector omega leader oracle process initial knowledge

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Role of artificial intelligence in multidisciplinary imaging diagnosis of gastrointestinal diseases

引用

World Journal of Gastroenterology 2021年第27期27卷 4395-4412页

作者： M Alvaro Berbís José Aneiros-f.rnández f Javier Mendoza Olivares Enrique Nava antonio Luna Department of R&D HT MédicaMadrid 28046MadridSpain Department of Pathology Hospital Universitario Clínico San CecilioGranada 18012Spain Department of Gastroenterology Fatima ClinicSevilla 41012Spain Department of Communications Engineering University of MálagaMalaga 29016Spain MRI Unit Department of RadiologyHT MédicaJaén 23007Spain

The use of artificial intelligence-based tools is regarded as a promising approach to increase clinical efficiency in diagnostic imaging,improve the interpretability of results,and support decision-making for the detection and prevention of ***,endoscopy and pathology images are suitable for deep-learning analysis,potentially changing the way care is delivered in *** aim of this review is to examine the key aspects of different neural network architectures used for the evaluation of gastrointestinal conditions,by discussing how different models behave in critical tasks,such as lesion detection or characterization(*** distinction between benign and malignant lesions of the esophagus,the stomach and the colon).To this end,we provide an overview on recent achievements and future prospects in deep learning methods applied to the analysis of radiology,endoscopy and histologic whole-slide images of the gastrointestinal tract.

关键词： Artificial intelligence Machine learning Radiology Endoscopy Pathology Gastroenterology

来源：

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

Ni-based catalysts obtained from perovskites oxides for ethanol steam reforming

引用

燃料化学学报 2018年第11期46卷 1332-1341页

作者： fabiola Nerina Agüero Jose antonio Alonso Maria Teresa f.rnández-Díaz Luis Eduardo Cadus Instituto de Investigaciones en Tecnología Química(INTEQUI) UNSL-CONICETAlmirante Brown 14555700 San LuisArgentina Instituto de Ciencia de Materiales de Madrid Consejo Superior de Investigaciones CientíficasCantoblanco28049 MadridSpain Institut Laue-Langevin B.P.156F-38042 Grenoble Cedex 9France

Perovskites as host structures of cations were used in order to generate in situ active and stable catalysts for ethanol steam reforming. for this purpose,La_(1-x)Mg_xAl_(1-y)Ni_yO_3(x = 0.1; y = 0,0.1,0.2,0.3) perovskites were synthetized by the citrate *** segregation is evident for a substitution level higher than 0. 2. The segregation of Ni as NiO generated species interacts with different metal-support after the reduction step. The y = 0.1 catalyst presents the highest H_2 yield value about 85% during reaction time,with low mean values of CH_4 and CO selectivities of 3.4% and 11%,respectively and a low carbon formation. The better performance of y = 0.1 catalyst could be attributed to the minor proportion of segregated phases,thus a controlled expulsion of Ni is successfully reached.

关键词： perovskites catalyst design ethanol steam reforming

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Automorphism Groups of Pseudo-real Riemann Surfaces of Low Genus

引用

Acta Mathematica Sinica,English Series 2014年第1期30卷 11-22页

作者： Emilio BUJALANCE antonio f.COSTA Departamento de Matemáticas fundamentales Facultad de CienciasUNEDSenda del rey928040 MadridSpain

A pseudo-real Riemann surface admits anticonformal automorphisms but no anticonformal *** obtain the classifcation of actions and groups of automorphisms of pseudo-real Riemann surfaces of genera 2,3 and *** instance the automorphism group of a pseudo-real Riemann surface of genus 4 is eitherC4orC8or the fro¨benius group of order 20,and in the case ofC4there are exactly two possible topological *** MK P R,g be the set of surfaces in the moduli space MK g corresponding to pseudo-real Riemann *** obtain the equisymmetric stratifcation of MK P R,g for generag=2,3,4,and as a consequence we have that MK P R,gis connected forg=2,3 but MK P R,4has three connected components.

关键词： Riemann surface automorphism anticonformal automorphism moduli space

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Lessons from rare tumors: Hepatic lymphoepithelioma-like carcinomas

引用

World Journal of Gastroenterology 2015年第12期21卷 3472-3479页

作者： antonio Solinas Diego f Calvisi Department of Biomedical Sciences University of Sassari Department of Clinical and Experimental Medicine University of Sassari Institute of Pathology University of Greifswald

In this review we focus on lymphoepitheliomalike hepatocellular carcinomas(LEL-HCC) and lymphoepithelioma-like cholangiocarcinomas(LEL-ICC). Despite their rarity, these tumors are of general interest because of their epidemiological and clinical features, and because they represent a distinct model of interaction between the immune systemand neoplastic cells. Approximately half of LELHCC arise in the context of chronic hepatitis C virus(HCV) infection and have been described both in Eastern and Western patients. By contrast, LEL-ICC is associated in almost all cases with Epstein-Barr virus(EBV) infection and exhibits the same epidemiological features of EBV related malignancies. Compared with classical hepatocellular carcinoma and intrahepatic cholangiocarcinoma of corresponding stage, both LEL-HCC and LEL-ICC are characterized by lower rates of recurrence after surgery and better overall survival. How this behavior is related to distinct genetic alterations and tumor microenvironment is unclear. The pathophysiological mechanisms of lymphoid infiltrations seem to be different among the two groups of tumors. In fact, LEL-HCC frequently arises in the context of inflammatory changes driven by HCV infection, and has been recognized as a variant of classical hepatocellular carcinoma. At variance, lymphocyte recruitment of LEL-ICC is similar to that described in nasopharyngeal carcinoma and gastric LEL, and possibly depends on the expression pattern of latent EBV infection.

关键词： Lymphoepithelioma Lymphoepithelioma-like carcinoma

来源：

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

Quantifying Electrochemical Processes in Batteries and Beyond

引用

Energy & Environmental Materials 2022年第4期5卷 1001-1004页

作者： Emma N.antonio Michael f.Toney Materials Science and Engineering Program University of Colorado BoulderBoulderColorado 80309USA Joint Center for Energy Storage Research(JCESR) University of Colorado BoulderBoulderColorado 80309USA Department of Chemical and Biological Engineering University of Colorado BoulderBoulderColorado 80309USA Renewable and Sustainable Energy Institute University of Colorado BoulderBoulderColorado 80309USA

The correlation of electrochemical measurements with materials characterization has advanced our understanding of operation and degradation mechanisms in electrochemical energy storage and many other ***,often these correlations are qualitative,preventing the unambiguous identification of both operational principles and the root causes of performance *** we suggest quantitative approaches to define competing mechanisms and determine their relative *** illustrate the importance of quantitative methodologies over a range of electrochemical systems and highlight the need to consider the effect of the experimental design and measurement *** approaches will reveal the most detrimental degradation mechanisms and enable the development of strategies to suppress,stabilize or eliminate them,leading to materials and devices with longer lifetimes,reduced environmental impact,and improved performance.

关键词： electrochemistry in situ and operando characterization batteries quantification materials science

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

federated Network Intelligence Orchestration for Scalable and Automated fL-Based Anomaly Detection in B5G Networks

引用

Computers, Materials & Continua 2024年第7期80卷 163-193页

作者： Pablo f.rnández Saura José M.Bernabé Murcia Emilio García de la Calera Molina Alejandro Molina Zarca Jorge Bernal Bernabé antonio f.Skarmeta Gómez Department of Information and Communications Engineering University of MurciaMurcia30100Spain University Center of Defense Spanish Air Force AcademySan Javier30720Spain

The management of network intelligence in Beyond 5G(B5G)networks encompasses the complex challenges of scalability,dynamicity,interoperability,privacy,and *** are essential steps towards achieving the realization of truly ubiquitous Artificial Intelligence(AI)-based analytics,empowering seamless integration across the entire Continuum(Edge,fog,Core,Cloud).This paper introduces a federated Network Intelligence Orchestration approach aimed at scalable and automated federated Learning(fL)-based anomaly detection in *** leveraging a horizontal federated learning approach based on the fedAvg aggregation algorithm,which employs a deep autoencoder model trained on non-anomalous traffic samples to recognize normal behavior,the systemorchestrates network intelligence to detect and prevent *** into a B5G Zero-touch Service Management(ZSM)aligned Security framework,the proposal utilizes multi-domain and multi-tenant orchestration to automate and scale the deployment of fL-agents and AI-based anomaly detectors,enhancing reaction capabilities against *** proposed fL architecture can be dynamically deployed across the B5G Continuum,utilizing a hierarchy of Network Intelligence orchestrators for real-time anomaly and security threat *** includes fL enforcement operations for interoperability and extensibility,enabling dynamic deployment,configuration,and reconfiguration on *** validation of the proposed solution was conducted through dynamic orchestration,fL,and real-time anomaly detection processes using a practical test *** of key performance metrics,leveraging the 5G-NIDD dataset,demonstrates the system’s capability for automatic and near real-time handling of anomalies and attacks,including real-time network monitoring and countermeasure implementation for mitigation.

关键词： federated learning 6G orchestration anomaly detection security policy

来源：

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

A High-Performance Solid-State Na–CO_(2)Battery with Poly(Vinylidene fluoride-co-Hexafluoropropylene)−Na_(3.2)Zr_(1.9)Mg_(0.1)Si_(2)PO_(12)Electrolyte

引用

Energy & Environmental Materials 2023年第3期6卷 87-95页

作者： Liang Lu Chunwen Sun Jian Hao Zelin Wang Sergio f.Mayer Maria Teresa f.rnandez-Diıaz Jose antonio Alonso Bingsuo Zou School of Chemical&Environmental Engineering China University of Mining and Technology-BeijingBeijing 100083China School of Physical Science and Technology Guangxi UniversityNanning 530004China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuan 750021China Instituto de Ciencia de los Materiales de Madrid CSICE-28049Cantoblanco-MadridSpain Institut Laue Langevin Grenoble F-38042France Guangxi Key Lab of Processing for Nonferrous Metals and featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials Ministry of EducationSchool of ResourcesEnvironments and MaterialsGuangxi UniversityNanning 530004China

The recovery and utilization of carbon dioxide(CO_(2))is the key to achieve the targets of peak carbon dioxide emissions and carbon *** Na-CO_(2)battery made with cheap alkali metal sodium and greenhouse gas CO_(2)is an effective strategy to consume CO_(2)and store clean renewable ***,the liquid electrolyte volatilization in the open battery system and inevitable dendrite growth restrict the application of Na-CO_(2)*** this work,magnesium-doped Na_(3)Zr_(2)Si_(2)PO_(12)(NZSP)was studied as a solid electrolyte for solid-state Na-CO_(2)*** ionic conductivity of Na_(3.2)Zr_(1.9)Mg_(0.1)Si_(2)PO_(12)reaches 1.16 mS cm^(−1)at room temperature by replacing Zr ions in Na_(3.2)Zr_(1.9)Mg_(0.1)Si_(2)PO_(12)with Mg ions,and the structural changes are analyzed by neutron powder *** composite electrolyte consisting of highly conductive Na_(3.2)Zr_(1.9)Mg_(0.1)Si_(2)PO_(12)and high processability poly(vinylidene fluoride-co-hexafluoropropylene)(PVDf-HfP)is utilized for the first time to assemble a solid-state Na-CO_(2)*** cell shows a full discharge capacity of 7720 mAh g^(−1)at 200 mA g^(−1).The middle gap voltage is lower than 2 V after 120 cycles at 200 mA g^(−1)and at a cut-off capacity of 500 mAh g^(−1).This work demonstrates a promising strategy to design high-performance solid-state Na-CO_(2)batteries.

关键词： cycling stability ion transport Mg-doped NZSP neutron powder diffraction solid-state Na-CO_(2)batteries

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Affinity-Based Network Interfaces for Efficient Communication on Multicore Architectures

引用

Journal of Computer Science & Technology 2013年第3期28卷 508-524页

作者： Andrés Ortiz Julio Ortega antonio f.Díaz Alberto Prieto Department of Communications Engineering University of Málaga Department of Computer Architecture and Technology/CITIC University of Granada

Improving the network interface performance is needed by the demand of applications with high communication requirements （for example, some multimedia, real-time, and high-performance computing applications）, and the availability of network links providing multiple gigabits per second bandwidths that could require many processor cycles for communication tasks. Multicore architectures, the current trend in the microprocessor development to cope with the difficulties to further increase clock frequencies and microarchitecture efficiencies, provide new opportunities to exploit the parallelism available in the nodes for designing efficient communication architectures. Nevertheless, although present OS network stacks include multiple threads that make it possible to execute network tasks concurrently in the kernel, the implementations of packet-based or connection-based parallelism are not trivial as they have to take into account issues related with the cost of synchronization in the access to shared resources and the efficient use of caches. Therefore, a common trend in many recent researches on this topic is to assign network interrupts and the corresponding protocol and network application processing to the same core, as with this affinity scheduling it would be possible to reduce the contention for shared resources and the cache misses. In this paper we propose and analyze several configurations to distribute the network interface among the different cores available in the server. These alternatives have been devised according to the affinity of the corresponding communication tasks with the location （proximity to the memories where the different data structures are stored） and characteristics of the processing core. As this approach uses several cores to accelerate the communication path of a given connection, it can be seen as complementary to those that consider several cores to simultaneously process packets belonging to either the same or different connections.

关键词： interrupt affinity processor affinity network interface offioading, SIMICS

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Single ventricle:amphibians and human beings

引用

World Journal of Pediatrics 2022年第10期18卷 643-646页

作者： Paolo Angelini Bruno Marino antonio f.Corno Texas Heart Medical Group Texas Heart InstituteBaylor CollegeHoustonTX77030USA Department of Pediatrics Obstetrics and GynecologyUniversity La Sapienza00161RomeItaly Children’s Heart Institute McGovern Medical SchoolMemorial Hermann Children’s HospitalUniversity of Texas Health Science Center in Houston6410 Fannin StreetMSB 6.274HoustonTX77030USA

Survival to adult life in patients born with“functionally”single ventricle,without any surgical treatment,as natural history,is extremely rarely reported[1,2,3,4,5,6,7].In general,these group of patients with“functionally”single ventricle are symptomatic from the first weeks of life,and require two to three staged operations to obtain that the single ventricle pumps the oxygenated blood to the systemic circulation,while the less oxygenated blood is deviated by gravity from the superior and inferior vena cava directly to the lungs[1,8,9].The result of this artificial“fontan circulation”is high systemic venous pressure,and the chronic elevation of the systemic venous pressure may results in liver failure,renal failure.

关键词： ventricle Survival operations

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：