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Interworking between Modbus and internet of things platform for industrial services
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作者 Sherzod Elamanov Hyeonseo Son +3 位作者 Bob Flynn Seong Ki Yoo Naqqash Dilshad JaeSeung Song 《Digital Communications and Networks》 SCIE CSCD 2024年第2期461-471,共11页
In the era of rapid development of Internet of Things(IoT),numerous machine-to-machine technologies have been applied to the industrial domain.Due to the divergence of IoT solutions,the industry is faced with a need t... In the era of rapid development of Internet of Things(IoT),numerous machine-to-machine technologies have been applied to the industrial domain.Due to the divergence of IoT solutions,the industry is faced with a need to apply various technologies for automation and control.This fact leads to a demand for an establishing interworking mechanism which would allow smooth interoperability between heterogeneous devices.One of the major protocols widely used today in industrial electronic devices is Modbus.However,data generated by Modbus devices cannot be understood by IoT applications using different protocols,so it should be applied in a couple with an IoT service layer platform.oneM2M,a global IoT standard,can play the role of interconnecting various protocols,as it provides flexible tools suitable for building an interworking framework for industrial services.Therefore,in this paper,we propose an interworking architecture between devices working on the Modbus protocol and an IoT platform implemented based on oneM2M standards.In the proposed architecture,we introduce the way to model Modbus data as oneM2M resources,rules to map them to each other,procedures required to establish interoperable communication,and optimization methods for this architecture.We analyze our solution and provide an evaluation by implementing it based on a solar power management use case.The results demonstrate that our model is feasible and can be applied to real case scenarios. 展开更多
关键词 Internet of things INTEROPERABILITY INTERWORKING MODBUS oneM2M
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International Healthcare Terminologies for Morbidity New Era: SNOMED and ICD11
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作者 Jean Marie Rodrigues Constant Kone +1 位作者 Michel Babri Béatrice Trombert 《Journal of Biosciences and Medicines》 2024年第8期357-368,共12页
The Information Technology (IT) developments have changed the use of Healthcare terminologies from paper-based mortality statistics with the WHO international classifications of diseases (ICD) to the IT-based morbidit... The Information Technology (IT) developments have changed the use of Healthcare terminologies from paper-based mortality statistics with the WHO international classifications of diseases (ICD) to the IT-based morbidity implementations for instance for Casemix-based healthcare funding and managing systems. This higher level of granularity is worldwide spread under the umbrella of several national modifications named ICD10 XM. These developments have met the increased use of the International Clinical Reference Terminology named SNOMED. When the updating of WHO ICD10 to WHO ICD11 was decided a merging was envisaged and a WHO SNOMED CT common work proposed a methodology to create a common formal ontology between the 11th version of the WHO International Classification of Diseases and Health Problems (ICD) and the most used in the world clinical terminology named Systematized Nomenclature of Human and Veterinary Medicine - Clinical Terms (SCT). The present work follows this unachieved work and aims to develop a SNOMED-based formal ontology for ICD11 chapter 1 using the textual definitions of ICD11 codes which is a completely new character of ICD and the ontology tools provided by SCT in the publicly available SNOMED Browser. There are two key results: the lexical alignment is complete and the ontology alignment is incomplete with the validated SNOMED concept model can be completed with not yet validated attributes and values of the SNOMED Compositional Grammar. The work opens a new era for the seamless use of both international terminologies for morbidity for instance for DRG/Casemix and clinical management use. The main limitation is that it is restricted to 1 out of 26 chapters of ICD11. 展开更多
关键词 Lexical Alignment Semantic Interoperability Ontology SNOMED Concept Model ICD-11 SNOMED CT
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Blockchain-Based System for Secure and Efficient Cross-Border Remittances: A Potential Alternative to SWIFT
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作者 Omoshola S. Owolabi Emmanuel Hinneh +6 位作者 Prince C. Uche Nathaniel T. Adeniken Jennifer A. Ohaegbulem Samuel Attakorah Oluwabukola G. Emi-Johnson Chinaza S. Belolisa Harold Nwariaku 《Journal of Software Engineering and Applications》 2024年第8期664-712,共49页
This paper proposes a blockchain-based system as a secure, efficient, and cost-effective alternative to SWIFT for cross-border remittances. The current SWIFT system faces challenges, including slow settlement times, h... This paper proposes a blockchain-based system as a secure, efficient, and cost-effective alternative to SWIFT for cross-border remittances. The current SWIFT system faces challenges, including slow settlement times, high transaction costs, and vulnerability to fraud. Leveraging blockchain technology’s decentralized, transparent, and immutable nature, the proposed system aims to address these limitations. Key features include modular architecture, implementation of microservices, and advanced cryptographic protocols. The system incorporates Proof of Stake consensus with BLS signatures, smart contract execution with dynamic pricing, and a decentralized oracle network for currency conversion. A sophisticated risk-based authentication system utilizes Bayesian networks and machine learning for enhanced security. Mathematical models are presented for critical components, including transaction validation, currency conversion, and regulatory compliance. Simulations demonstrate potential improvements in transaction speed and costs. However, challenges such as regulatory hurdles, user adoption, scalability, and integration with legacy systems must be addressed. The paper provides a comparative analysis between the proposed blockchain system and SWIFT, highlighting advantages in transaction speed, costs, and security. Mitigation strategies are proposed for key challenges. Recommendations are made for further research into scaling solutions, regulatory frameworks, and user-centric designs. The adoption of blockchain-based remittances could significantly impact the financial sector, potentially disrupting traditional models and promoting financial inclusion in underserved markets. However, successful implementation will require collaboration between blockchain innovators, financial institutions, and regulators to create an enabling environment for this transformative system. 展开更多
关键词 INTEROPERABILITY Tokens AML/KYC Compliance Peer-to-Peer Transfers Financial Inclusion
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Healthcare Services Interoperability in Kenya: Challenges and Opportunities
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作者 Antony G. Musabi Andrew Kiprop Kipkebut 《E-Health Telecommunication Systems and Networks》 2024年第1期1-11,共11页
In an attempt to assess the Kenyan healthcare system, this study looks at the current efforts that are already in place, what challenges they face, and what strategies can be put into practice to foster interoperabili... In an attempt to assess the Kenyan healthcare system, this study looks at the current efforts that are already in place, what challenges they face, and what strategies can be put into practice to foster interoperability. By reviewing a variety of literature and using statistics, the paper ascertains notable impediments such as the absence of standard protocols, lack of adequate technological infrastructure, and weak regulatory frameworks. Resultant effects from these challenges regarding health provision target enhanced data sharing and merging for better patient outcomes and allocation of resources. It also highlights several opportunities that include the adoption of emerging technologies, and the establishment of public-private partnerships to strengthen the healthcare framework among others. In this regard, the article provides recommendations based on stakeholder views and global best practices addressed to policymakers, medical practitioners, and IT specialists concerned with achieving effective interoperability within Kenya’s health system. This research is relevant because it adds knowledge to the existing literature on how healthcare quality can be improved to make it more patient-centered especially in Kenya. 展开更多
关键词 Healthcare Services INTEROPERABILITY Data Exchange
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Evaluating and Addressing Interoperability Constraints in Health Information Systems for Enhanced Healthcare Delivery in Zimbabwe
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作者 Prosper Tafadzwa Denhere Nelson Matanana +2 位作者 Munyaradzi Zhou Caleb Manjeese Talent Mawere 《Journal of Computer and Communications》 2024年第7期133-154,共22页
Interoperability constraints in health information systems pose significant challenges to the seamless exchange and utilization of health data, hindering effective healthcare delivery. This paper aims to evaluate and ... Interoperability constraints in health information systems pose significant challenges to the seamless exchange and utilization of health data, hindering effective healthcare delivery. This paper aims to evaluate and address these constraints to enhance healthcare delivery. The study examines the current state of interoperability in health information systems, identifies the key constraints, and explores their impact on healthcare outcomes. Various approaches and strategies for addressing interoperability constraints are discussed, including the adoption of standardized data formats, implementation of interoperability frameworks, and establishment of robust data governance mechanisms. Furthermore, the study highlights the importance of stakeholder collaboration, policy development, and technical advancements in achieving enhanced interoperability. The findings emphasize the need for a comprehensive evaluation of interoperability constraints and the implementation of targeted interventions to promote seamless data exchange, improve care coordination, and enhance patient outcomes in healthcare settings. 展开更多
关键词 Health Information System INTEROPERABILITY Interoperability Constraints
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Robotic Process Automation with New Future Trends
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作者 Abu Tayab Yanwen Li 《Journal of Computer and Communications》 2024年第6期12-24,共13页
The invention concept of Robotic Process Automation (RPA) has emerged as a transformative technology that has revolved the local business processes by programming repetitive task and efficiency adjusting the operation... The invention concept of Robotic Process Automation (RPA) has emerged as a transformative technology that has revolved the local business processes by programming repetitive task and efficiency adjusting the operations. This research had focused on developing the RPA environment and its future features in order to elaborate on the projected policies based on its comprehensive experiences. The current and previous situations of industry are looking for IT solutions to fully scale their company Improve business flexibility, improve customer satisfaction, improve productivity, accuracy and reduce costs, quick scalability in RPA has currently appeared as an advance technology with exceptional performance. It emphasizes future trends and foresees the evolution of RPA by integrating artificial intelligence, learning of machine and cognitive automation into RPA frameworks. Moreover, it has analyzed the technical constraints, including the scalability, security issues and interoperability, while investigating regulatory and ethical considerations that are so important to the ethical utilization of RPA. By providing a comprehensive analysis of RPA with new future trends in this study, researcher’s ambitions to provide valuable insights the benefits of it on industrial performances from the gap observed so as to guide the strategic decision and future implementation of the RPA. 展开更多
关键词 Robotic Process Automation Artificial Intelligence Machine Learning Cognitive Computing INTEROPERABILITY Data Security
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A Study on the Challenges and Solutions of Blockchain Interoperability 被引量:1
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作者 Siyu Zhu Cheng Chi Yang Liu 《China Communications》 SCIE CSCD 2023年第6期148-165,共18页
With the development of blockchain technology,a variety of mutually independent blockchains such as Bitcoin and Ethereum,as well as private and consortium chains,coexist in large numbers.As a linker of the blockchain ... With the development of blockchain technology,a variety of mutually independent blockchains such as Bitcoin and Ethereum,as well as private and consortium chains,coexist in large numbers.As a linker of the blockchain network,blockchain interoperability will link more blockchain ecosystems,realize the interconnection of the blockchain and enhance the scalability of the blockchain.This paper summarizes typical blockchain interoperability projects.Firstly,it proposes a blockchain interoperability definition and an architecture model.Secondly,it analyzes technical characteristics of blockchain interoperability,and typical blockchain interoperability cases are compared.Finally,the trend of future development of blockchain interoperability technology is summarized and discussed. 展开更多
关键词 blockchain interoperability smart contract crosschain distributed ledgers Dapps
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Building an interoperable space for smart agriculture
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作者 Ioanna Roussaki Kevin Doolin +5 位作者 Antonio Skarmeta George Routis Juan Antonio Lopez-Morales Ethel Claffey Manuel Mora Juan Antonio Martinez 《Digital Communications and Networks》 SCIE CSCD 2023年第1期183-193,共11页
The digital transformation in agriculture introduces new challenges in terms of data,knowledge and technology adoption due to critical interoperability issues,and also challenges regarding the identification of the mo... The digital transformation in agriculture introduces new challenges in terms of data,knowledge and technology adoption due to critical interoperability issues,and also challenges regarding the identification of the most suitable data sources to be exploited and the information models that must be used.DEMETER(Building an Interoperable,Data-Driven,Innovative and Sustainable European Agri-Food Sector)addresses these challenges by providing an overarching solution that integrates various heterogeneous hardware and software resources(e.g.,devices,networks,platforms)and enables the seamless sharing of data and knowledge throughout the agri-food chain.This paper introduces the main concepts of DEMETER and its reference architecture to address the data sharing and interoperability needs of farmers,which is validated via two rounds of 20 large-scale pilots along the DEMETER lifecycle.This paper elaborates on the two pilots carried out in region of Murcia in Spain,which target the arable crops sector and demonstrate the benefits of the deployed DEMETER reference architecture. 展开更多
关键词 Smart agriculture Internet of things(IoT) DEMETER Reference architecture INTEROPERABILITY Agricultural information model(AIM) Pilot validation
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An Interoperability Cross-Block Chain Framework for Secure Transactions in IoT
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作者 N.Anand Kumar A.Grace Selvarani P.Vivekanandan 《Computer Systems Science & Engineering》 SCIE EI 2023年第10期1077-1090,共14页
The purpose of this research is to deal with effective block chain framework for secure transactions.The rate of effective data transactions and the interoperability of the ledger are the two major obstacles involved ... The purpose of this research is to deal with effective block chain framework for secure transactions.The rate of effective data transactions and the interoperability of the ledger are the two major obstacles involved in Blockchain and to tackle this issue,Cross-Chain based Transaction(CCT)is introduced.Traditional industries have been restructured by the introduction of Internet of Things(IoT)to become smart industries through the feature of data-driven decision-making.Still,there are a few limitations,like decentralization,security vulnerabilities,poor interoperability,as well as privacy concerns in IoTs.To overcome this limitation,Blockchain has been employed to assure a safer transaction process,especially in asset exchanges.In recent decades,scalable local ledgers implement Blockchains,simultaneously sustaining peer validations of transactions which can be at local or global levels.From the single Hyperledger-based blockchains system,the CCT takes the transaction amid various chains.In addition,the most significant factor for this registration processing strategy is the Signature to ensure security.The application of the Quantum cryptographic algorithm amplifies the proposed Hyperledger-based blockchains,to strengthen the safety of the process.The key has been determined by restricting the number of transactions that reach the global Blockchain using the quantum-based hash function and accomplished by scalable local ledgers,and peer validations of transactions at local and global levels without any issues.The rate of transaction processing for entire peers has enhanced with the ancillary aid of the proposed solution,as it includes the procedure of load distribution.Without any boosted enhancement,the recommended solution utilizes the current transaction strategy,and also,it’s aimed at scalability,resource conservation,and interoperability.The experimental results of the system have been evaluated using the metrics like block weight,ledger memory,the usage of the central processing unit,and the communication overhead. 展开更多
关键词 Internet of Things(IoT) scalability blockchain INTEROPERABILITY security ledger size transaction rate cross-chain based transaction(CCT) quantum cryptographic algorithm
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数字化转型中的标准化策略:现代企业的挑战与机遇
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作者 杨丽娟 《China Standardization》 2023年第S01期18-20,24,共4页
Digital transformation,central to modern enterprises,presents both challenges and opportunities.This paper underscores the role of standardization strategies in navigating these challenges,delineating primary digital ... Digital transformation,central to modern enterprises,presents both challenges and opportunities.This paper underscores the role of standardization strategies in navigating these challenges,delineating primary digital transformation trends and associated enterprise challenges.Standardization emerges as a solution,ensuring technological interoperability,risk reduction,and enhanced efficiency.As the technological landscape grows more complex,standardization offers clarity and direction,helping enterprises to seize opportunities and mitigate risks.The paper also gives recommendations for future research and business practices.The increasing synergy between digital transformation and standardization underscores its essentiality for forward-thinking enterprises. 展开更多
关键词 digital transformation standardization strategies technological interoperability enterprise challenges practical application cases
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BIM Supporting the Development of Multitasks Related with the Structural Project
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作者 Alcínia Zita Sampaio Augusto Martins Gomes +1 位作者 Paulo Manuel Sequeira Gonçalo Ferreira Azevedo 《Journal of Software Engineering and Applications》 2023年第8期397-419,共23页
Building Information Modelling (BIM) is a methodology focused on the centralization and sharing of the project information among all professionals involved, supported on the generation and manipulation of a three-dime... Building Information Modelling (BIM) is a methodology focused on the centralization and sharing of the project information among all professionals involved, supported on the generation and manipulation of a three-dimensional (3D) digital BIM model. This methodology allows a close collaboration between the architect and the structural engineer and an adequate manipulation of the structural BIM model database, on the definition of multitasks. The collaboration allowed between all disciplines, avoid the detection of conflicts and data omission after in the construction place. Two BIM structural design cases were developed, using Revit as the modelling system and Robot as the structural software. Concerning the structural project the interoperability capacity between the software is still a limitation that engineers must be warned of. In the present study, the benefits and limitations identified within the communication and integration of distinct disciplines and on the development of most frequent multitasks normally related with a structural project, were considered. 展开更多
关键词 BIM Structural Project Communication Integration INTEROPERABILITY Multitasks
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Problem of interoperability in semantic web service system
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作者 满君丰 彭三城 +1 位作者 向剑伟 胡永祥 《Journal of Southeast University(English Edition)》 EI CAS 2006年第3期306-310,共5页
In order to fully realize semantic interoperability among distributed and heterogeneous applications on the web, a set of effective interoperability mechanisms is presented. This mechanism adopts service interactive i... In order to fully realize semantic interoperability among distributed and heterogeneous applications on the web, a set of effective interoperability mechanisms is presented. This mechanism adopts service interactive interfaces (SII) and service aggregative interfaces (SAI) modeled with abstract state machine (ASM) to abstractly describe the behavior of the invoked web service instances, which makes business processing accurately specify tasks and effectively solves the problems of communication and collaboration between service providers and service requesters. The mechanism also uses appropriate mediators to solve the problems of information and coinmunication incompatibility during the course of service interaction, which is convenient for service interoperability, sharing and integration. The mechanism' s working principle and interoperability implementation are illustrated by a use case in detail. 展开更多
关键词 semantic services-oriented architecture abstract state machine service interface INTEROPERABILITY
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协议测试技术分析——一致性测试与互操作测试 被引量:10
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作者 落红卫 《电信网技术》 2007年第3期58-60,共3页
随着通信技术的快速发展,针对协议的测试越来越重要。本文介绍了协议一致性测试和互操作测试,分析了二者的优缺点,同时明确了它们之间的关系,以及相关标准进展情况,从而指导我们选择正确的协议测试技术。
关键词 协议测试 一致性测试(Conformance Testing)互操作测试(Interoperability Testing)
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基于ArcGIS数据互操作模块的空间数据共享实现研究 被引量:1
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作者 赵占轻 侯国力 边占新 《西安文理学院学报(自然科学版)》 2011年第2期74-77,共4页
以某一地区的地形图为例,研究了基于ArcGIS数据互操作扩展模块(ArcGIS Data Interoper-ability)实现ArcGIS与AutoCAD之间空间数据共享的方法.结果表明:借助ArcGIS数据互操作扩展模块,可以不必购买和安装额外的软件、不用编程,就能方便... 以某一地区的地形图为例,研究了基于ArcGIS数据互操作扩展模块(ArcGIS Data Interoper-ability)实现ArcGIS与AutoCAD之间空间数据共享的方法.结果表明:借助ArcGIS数据互操作扩展模块,可以不必购买和安装额外的软件、不用编程,就能方便地实现多种常见格式空间数据间的"无损"转换;可以将AutoCAD方便、灵活的编辑功能与ArcGIS软件强大的空间分析功能有效地结合起来,更好地满足行业GIS应用和研究的需要. 展开更多
关键词 FME ARCGIS Data INTEROPERABILITY 空间数据 空间数据共享
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Multi-broker architecture for large-scale dynamic heterogeneous information integration
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作者 邓华锋 刘云生 《Journal of Southeast University(English Edition)》 EI CAS 2007年第3期343-346,共4页
In order to realize interoperability to a large number of autonomous and heterogeneous information sources with high efficiency, an agent-based multi-broker architecture (AMA)-HustEven, is constructed. A group of br... In order to realize interoperability to a large number of autonomous and heterogeneous information sources with high efficiency, an agent-based multi-broker architecture (AMA)-HustEven, is constructed. A group of broker agents are designed to provide brokering services in a peer-to-peer (P2P) manner for the non- broker agents (user agents, resource agents, query agents). Thus, the scalability and robustness of the system are enhanced. Ontology is also used by the broker agents for facilitating interoperability among all the agents in HustEven. Unlike any other AMAs, an interdomain ontology is built in this system to represent the relationships among the common concepts in the innerdomain ontologies. Therefore, a broker forwards the queries only to the other related brokers according to the interdomain ontology and the communication overhead among the brokers is reduced. Obviously, the application of the interdomain ontology enables a broker to fully take advantage of the multi-broker architecture. The experimental results show that the HustEven performs more efficiently than any other existing systems. 展开更多
关键词 multi-broker architecture semantic interoperability ONTOLOGY information integration open systems
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复杂软件系统的分散式构造:一个电子商务案例研究(英文)
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作者 KASSEL Stephan WINKELMANN Sabine TITTMANN Claudia 《中山大学学报(自然科学版)》 CAS CSCD 北大核心 2007年第S2期41-45,共5页
Software development skills are only partially trained with traditional programming languages and software engineering courses. To achieve practical skills needed in software industry, complex examples are necessary w... Software development skills are only partially trained with traditional programming languages and software engineering courses. To achieve practical skills needed in software industry, complex examples are necessary which have to be generated in a project-like setting. This includes common solution finding, intensive communication and structured programming tasks. Here, a case study from the domain of eCommerce is presented, showing the complexity needed for these learning processes. 展开更多
关键词 decentralised SOFTWARE design SOFTWARE as interoperating SERVICES web SERVICES COMMUNICATION in SOFT
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Modified Benes network architecture for WiMAX LDPC decoder 被引量:1
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作者 徐勐 吴建辉 张萌 《Journal of Southeast University(English Edition)》 EI CAS 2011年第2期140-143,共4页
A modified Benes network is proposed to be used as an optimal shuffle network in worldwide interoperability for microwave access (WiMAX) low density parity check (LDPC) decoders, When the size of the input is not ... A modified Benes network is proposed to be used as an optimal shuffle network in worldwide interoperability for microwave access (WiMAX) low density parity check (LDPC) decoders, When the size of the input is not a power of two, the modified Benes network can achieve the most optimal performance. This modified Benes network is non-blocking and can perform any sorts of permutations, so it can support 19 modes specified in the WiMAX system. Furthermore, an efficient algorithm to generate the control signals for all the 2 × 2 switches in this network is derived, which can reduce the hardware complexity and overall latency of the modified Benes network. Synthesis results show that the proposed control signal generator can save 25.4% chip area and the overall network latency can be reduced by 36. 2%. 展开更多
关键词 worldwide interoperability for microwave access(WiMAX) quasi-cycle low density parity check (QC-LDPC) LDPC decoder Benes network
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基于ArcGIS Data Interoperability的空间数据格式转换 被引量:3
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作者 奚凌云 王亚子 《徐州工程学院学报(自然科学版)》 CAS 2009年第3期41-45,共5页
通过分析AutoCAD和ArcGIS的数据结构,提出了如何利用ArcGIS Data Interoper-ability实现CAD数据与GIS数据的语义转换.采用这种方法进行数据转换,可以在数据转换过程中重构数据实体,能够有效地解决"如何实现数据在不同平台之间的转... 通过分析AutoCAD和ArcGIS的数据结构,提出了如何利用ArcGIS Data Interoper-ability实现CAD数据与GIS数据的语义转换.采用这种方法进行数据转换,可以在数据转换过程中重构数据实体,能够有效地解决"如何实现数据在不同平台之间的转换,实现数据共享"这个制约GIS发展的瓶颈问题. 展开更多
关键词 ARCGIS DATA INTEROPERABILITY 空间数据 数据转换
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Sensing for advancing mining automation capability:A review of underground automation technology development 被引量:39
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作者 Ralston Jonathon Reid David +1 位作者 Hargrave Chad Hainsworth David 《International Journal of Mining Science and Technology》 SCIE EI 2014年第3期305-310,共6页
This paper highlights the role of automation technologies for improving the safety, productivity, and environmental sustainability of underground coal mining processes. This is accomplished by reviewing the impact tha... This paper highlights the role of automation technologies for improving the safety, productivity, and environmental sustainability of underground coal mining processes. This is accomplished by reviewing the impact that the introduction of automation technology has made through the longwall shearer automation research program of Longwall Automation Steering Committee(LASC). This result has been achieved through close integration of sensing, processing, and control technologies into the longwall mining process. Key to the success of the automation solution has been the development of new sensing methods to accurately measure the location of longwall equipment and the spatial configuration of coal seam geology. The relevance of system interoperability and open communications standards for facilitating effective automation is also discussed. Importantly, the insights gained through the longwall automation development process are now leading to new technology transfer activity to benefit other underground mining processes. 展开更多
关键词 Mining automation Longwal mining Longwal Automation Steering Committee Interoperability Inertial navigation Coal seam sensing
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Trustworthy Assurance of Service Interoperation in Cloud Environment 被引量:6
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作者 Bing Li Bu-Qing Cao +1 位作者 Kun-Mei Wen Rui-Xuan Li 《International Journal of Automation and computing》 EI 2011年第3期297-308,共12页
Cloud computing can be realized by service interoperation and its essence is to provide cloud services through network. The development of effective methods to assure the trustworthiness of service interoperation in c... Cloud computing can be realized by service interoperation and its essence is to provide cloud services through network. The development of effective methods to assure the trustworthiness of service interoperation in cloud environment is a very important problem. The essence of cloud security is trust and trust management. Combining quality of service (QoS) with trust model, this paper constructs a QoS-aware and quantitative trust-model that consists of initial trust value, direct trust value, and recommendatory trust value of service, making the provision, discovery, and aggregation of cloud services trustworthy. Hence, it can assure trustworthiness of service interoperation between users and services or among services in cloud environment. At the same time, based on this model, service discovery method based on QoS-aware and quantitative trust-model (TQoS-WSD) is proposed, which makes a solid trust relationship among service requestor, service provider and service recommender, and users can find trustworthy service whose total evaluation value is higher. Corapared to QoS-based service discovery (QoS-WSD) method, it is proved by the experiment for TQoS-WSD method that more accurate result of service discovery will be achieved by service requestor, while reasonable time cost is increased. Meanwhile, TQoS-WSD method strongly resists the effect of service discovery by untrustworthy QoS values and improves service invocation success-rate and thus assures trustworthiness of services interoperation. 展开更多
关键词 Quality of service (QoS) trust service discovery service interoperation service invocation success-rate cloud computing.
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