WorldWideScience

Sample records for high availability middleware

  1. High Efficiency and Light Mobile Electronic Business System Based on Mobile Agent Middleware

    Institute of Scientific and Technical Information of China (English)

    ZHANG Yunyong; LIU Jinde

    2004-01-01

    Mobile Network technology has been being the research focus during the 1990's.The middleware technology is imported for the sake of running distributed transaction smoothly.In this paper,a mobile agent based middleware high efficiency mobile electronic business oriented middleware (HEMEBOM) is designed and implemented based on the requirement and background of collaborative electronic business.Its architecture,elements and excellent properties are mainly focused.Then high efficiency mobile electronic business systemμMcommerce is built using HEMEBOM.

  2. Cloud object store for checkpoints of high performance computing applications using decoupling middleware

    Energy Technology Data Exchange (ETDEWEB)

    Bent, John M.; Faibish, Sorin; Grider, Gary

    2016-04-19

    Cloud object storage is enabled for checkpoints of high performance computing applications using a middleware process. A plurality of files, such as checkpoint files, generated by a plurality of processes in a parallel computing system are stored by obtaining said plurality of files from said parallel computing system; converting said plurality of files to objects using a log structured file system middleware process; and providing said objects for storage in a cloud object storage system. The plurality of processes may run, for example, on a plurality of compute nodes. The log structured file system middleware process may be embodied, for example, as a Parallel Log-Structured File System (PLFS). The log structured file system middleware process optionally executes on a burst buffer node.

  3. Cloud object store for archive storage of high performance computing data using decoupling middleware

    Energy Technology Data Exchange (ETDEWEB)

    Bent, John M.; Faibish, Sorin; Grider, Gary

    2015-06-30

    Cloud object storage is enabled for archived data, such as checkpoints and results, of high performance computing applications using a middleware process. A plurality of archived files, such as checkpoint files and results, generated by a plurality of processes in a parallel computing system are stored by obtaining the plurality of archived files from the parallel computing system; converting the plurality of archived files to objects using a log structured file system middleware process; and providing the objects for storage in a cloud object storage system. The plurality of processes may run, for example, on a plurality of compute nodes. The log structured file system middleware process may be embodied, for example, as a Parallel Log-Structured File System (PLFS). The log structured file system middleware process optionally executes on a burst buffer node.

  4. Cloud object store for archive storage of high performance computing data using decoupling middleware

    Science.gov (United States)

    Bent, John M.; Faibish, Sorin; Grider, Gary

    2015-06-30

    Cloud object storage is enabled for archived data, such as checkpoints and results, of high performance computing applications using a middleware process. A plurality of archived files, such as checkpoint files and results, generated by a plurality of processes in a parallel computing system are stored by obtaining the plurality of archived files from the parallel computing system; converting the plurality of archived files to objects using a log structured file system middleware process; and providing the objects for storage in a cloud object storage system. The plurality of processes may run, for example, on a plurality of compute nodes. The log structured file system middleware process may be embodied, for example, as a Parallel Log-Structured File System (PLFS). The log structured file system middleware process optionally executes on a burst buffer node.

  5. High availability using virtualization

    CERN Document Server

    Calzolari, Federico

    2009-01-01

    High availability has always been one of the main problems for a data center. Till now high availability was achieved by host per host redundancy, a highly expensive method in terms of hardware and human costs. A new approach to the problem can be offered by virtualization. Using virtualization, it is possible to achieve a redundancy system for all the services running on a data center. This new approach to high availability allows to share the running virtual machines over the servers up and running, by exploiting the features of the virtualization layer: start, stop and move virtual machines between physical hosts. The system (3RC) is based on a finite state machine with hysteresis, providing the possibility to restart each virtual machine over any physical host, or reinstall it from scratch. A complete infrastructure has been developed to install operating system and middleware in a few minutes. To virtualize the main servers of a data center, a new procedure has been developed to migrate physical to virtu...

  6. Middleware-based Dynamic Traffic Information Collection System

    Directory of Open Access Journals (Sweden)

    Lei Wu

    2014-03-01

    Full Text Available According to traffic information of multi-source heterogeneity and complexity of information processing, hence, the architecture of the dynamic traffic information collection system based on middleware is proposed, which enhances the system stability, generality, and efficiency depending on the high integration and scalability of middleware. This middleware-based system unifies and encodes the data from all sorts of detectors, and integrates the multi-mode transmission, data preprocessing, and data fusion. Compared with the traditional traffic information collection system, the proposed system overcomes the data loss, data noise, and especially the data multiple source, decreases the data redundancy, and ensures the data accuracy with better security and expandability

  7. Middleware Proxy: A Request-Driven Messaging Broker For High Volume Data Distribution

    CERN Document Server

    Sliwinski, W; Dworak, A

    2014-01-01

    Nowadays, all major infrastructures and data centres (commercial and scientific) make an extensive use of the publish-subscribe messaging paradigm, which helps to decouple the message sender (publisher) from the message receiver (consumer). This paradigm is also heavily used in the CERN Accelerator Control system, in Proxy broker - critical part of the Controls Middleware (CMW) project. Proxy provides the aforementioned publish-subscribe facility and also supports execution of synchronous read and write operations. Moreover, it enables service scalability and dramatically reduces the network resources and overhead (CPU and memory) on publisher machine, required to serve all subscriptions. Proxy was developed in modern C++, using state of the art programming techniques (e.g. Boost) and following recommended software patterns for achieving low-latency and high concurrency. The outstanding performance of the Proxy infrastructure was confirmed during the last 3 years by delivering the high volume of LHC equipment...

  8. Object Based Middleware for Grid Computing

    Directory of Open Access Journals (Sweden)

    S. Muruganantham

    2010-01-01

    Full Text Available Problem statement: “Grid” computing has emerged as an important new field, distinguished from conventional distributed computing by its focus on large-scale resource sharing, innovative applications and, in some cases, high-performance orientation. The role of middleware is to ease the task of designing, programming and managing distributed applications by providing a simple, consistent and integrated distributed programming environment. Essentially, middleware is a distributed software layer, which abstracts over the complexity and heterogeneity of the underlying distributed environment with its multitude of network technologies, machine architectures, operating systems and programming languages. Approach: This study brought out the development of supportive middleware to manage resources and distributed workload across multiple administrative boundaries is of central importance to Grid computing. Active middleware services that perform look-up, scheduling and staging are being developed that allow users to identify and utilize appropriate resources that provide sustainable system and user-level qualities of service. Results: Different middleware platforms support different programming models. Perhaps the most popular model is object-based middleware in which applications are structured into objects that interact via location transparent method invocation. Conclusion: The Object Management Group’s CORBA platform offer an Interface Definition Language (IDL which is used to abstract over the fact that objects can be implemented in any suitable programming language, an object request broker which is responsible for transparently directing method invocations to the appropriate target object and a set of services such as naming, time, transactions, replication which further enhance the programming environment.

  9. The Design of a Lightweight RFID Middleware

    Directory of Open Access Journals (Sweden)

    Fengqun Lin

    2009-10-01

    Full Text Available Radio Frequency Identification (RFID middleware is often regarded as the central nervous system of RFID systems. In this paper, a lightweight RFID middleware is designed and implemented without the need of an Application Level Events (ALE structure, and its implementation process is described using a typical commerical enterprise. A short review of the current RFID middleware research and development is also included. The characteristics of RFID middleware are presented with a two-centric framework. The senarios of RFID data integration based on the simplified structure are provided to illuminats the design and implementation of the lightweight middleware structure and its development process. The lightweight middleware is easy to maintain and extend because of the simplified and streamlined structure and the short development cycle.

  10. An Access Control Framework for Reflective Middleware

    Institute of Scientific and Technical Information of China (English)

    Gang Huang; Lian-Shan Sun

    2008-01-01

    Reflective middleware opens up the implementation details of middleware platform and applications at runtime for improving the adaptability of middleware-based systems. However, such openness brings new challenges to access control of the middleware-based systems.Some users can access the system via reflective entities, which sometimes cannot be protected by access control mechanisms of traditional middleware. To deliver high adaptability securely, reflective middleware should be equipped with proper access control mechanisms for potential access control holes induced by reflection. One reason of integrating these mechanisms in reflective middleware is that one goal of reflective middleware is to equip applications with reflection capabilities as transparent as possible. This paper studies how to design a reflective J2EE middlewarePKUAS with access control in mind. At first, a computation model of reflective system is built to identify all possible access control points induced by reflection. Then a set of access control mechanisms, including the wrapper of MBeans and a hierarchy of Java class loaders, are equipped for controlling the identified access control points. These mechanisms together with J2EE access control mechanism form the access control framework for PKUAS. The paper evaluates the security and the performance overheads of the framework in quality and quantity.

  11. Proxmox high availability

    CERN Document Server

    Cheng, Simon MC

    2014-01-01

    If you want to know the secrets of virtualization and how to implement high availability on your services, this is the book for you. For those of you who are already using Proxmox, this book offers you the chance to build a high availability cluster with a distributed filesystem to further protect your system from failure.

  12. High availability IT services

    CERN Document Server

    Critchley, Terry

    2014-01-01

    This book starts with the basic premise that a service is comprised of the 3Ps-products, processes, and people. Moreover, these entities and their sub-entities interlink to support the services that end users require to run and support a business. This widens the scope of any availability design far beyond hardware and software. It also increases the potential for service failure for reasons beyond just hardware and software; the concept of logical outages. High Availability IT Services details the considerations for designing and running highly available ""services"" and not just the systems

  13. High Availability Electronics Standards

    Energy Technology Data Exchange (ETDEWEB)

    Larsen, R.S.; /SLAC

    2006-12-13

    Availability modeling of the proposed International Linear Collider (ILC) predicts unacceptably low uptime with current electronics systems designs. High Availability (HA) analysis is being used as a guideline for all major machine systems including sources, utilities, cryogenics, magnets, power supplies, instrumentation and controls. R&D teams are seeking to achieve total machine high availability with nominal impact on system cost. The focus of this paper is the investigation of commercial standard HA architectures and packaging for Accelerator Controls and Instrumentation. Application of HA design principles to power systems and detector instrumentation are also discussed.

  14. JUNOS High Availability

    CERN Document Server

    Sonderegger, James; Milne, Kieran; Palislamovic, Senad

    2009-01-01

    Whether your network is a complex carrier or just a few machines supporting a small enterprise, JUNOS High Availability will help you build reliable and resilient networks that include Juniper Networks devices. With this book's valuable advice on software upgrades, scalability, remote network monitoring and management, high-availability protocols such as VRRP, and more, you'll have your network uptime at the five, six, or even seven nines -- or 99.99999% of the time. Rather than focus on "greenfield" designs, the authors explain how to intelligently modify multi-vendor networks. You'll learn

  15. A Generic Middleware Model for Smart Home

    Directory of Open Access Journals (Sweden)

    Madhusudanan J.

    2014-07-01

    Full Text Available A Smart Home is an emerging technology, where the electronic devices are controlled automatically based on the occupants activities. The pervasive computing plays a vital role in the smart home environment, which provides the computer-based service to human beings anywhere and anytime. However, when discussing smart home of the future, related studies have focused on providing middleware. The middleware acts as a interface between human beings and the smart devices. In this paper, we have proposed a generic middleware model for smart home that enables interaction between human being and devices and also between various devices based on the context identified in the environment.

  16. Context Aware Middleware Architectures: Survey and Challenges

    Directory of Open Access Journals (Sweden)

    Xin Li

    2015-08-01

    Full Text Available Context aware applications, which can adapt their behaviors to changing environments, are attracting more and more attention. To simplify the complexity of developing applications, context aware middleware, which introduces context awareness into the traditional middleware, is highlighted to provide a homogeneous interface involving generic context management solutions. This paper provides a survey of state-of-the-art context aware middleware architectures proposed during the period from 2009 through 2015. First, a preliminary background, such as the principles of context, context awareness, context modelling, and context reasoning, is provided for a comprehensive understanding of context aware middleware. On this basis, an overview of eleven carefully selected middleware architectures is presented and their main features explained. Then, thorough comparisons and analysis of the presented middleware architectures are performed based on technical parameters including architectural style, context abstraction, context reasoning, scalability, fault tolerance, interoperability, service discovery, storage, security & privacy, context awareness level, and cloud-based big data analytics. The analysis shows that there is actually no context aware middleware architecture that complies with all requirements. Finally, challenges are pointed out as open issues for future work.

  17. Middleware til Pervasive Communication

    DEFF Research Database (Denmark)

    Brønsted, Jeppe

    Pervasive computing-begrebet står for en ny bølge inden for IT-verdenen hvor der er IT i alt fra vaskemaskiner til supertankere. Alle disse forskellige enheder er forbundet på forskellige måder der gør det muligt at tilbyde nye typer af services der har potentiale til at ændre den måde vi ser på...... IT på radikalt. Det er kompliceret at lave systemer bestående af alle mulige forskellige enheder der kommunikerer på kryds og tværs, og derfor er det vigtigt af have god middleware understøttelse. I denne pixibog gives en kort introduktion til middleware til pervasive communication. Vi karakteriser...... hvorledes middleware til pervasive communication adskiller sig fra traditionel middleware og præsenterer forskellige firmaers og forskningsinstitutioners bud på middleware til pervasive communication...

  18. LSST communications middleware implementation

    Science.gov (United States)

    Mills, Dave; Schumacher, German; Lotz, Paul

    2016-07-01

    The LSST communications middleware is based on a set of software abstractions; which provide standard interfaces for common communications services. The observatory requires communication between diverse subsystems, implemented by different contractors, and comprehensive archiving of subsystem status data. The Service Abstraction Layer (SAL) is implemented using open source packages that implement open standards of DDS (Data Distribution Service1) for data communication, and SQL (Standard Query Language) for database access. For every subsystem, abstractions for each of the Telemetry datastreams, along with Command/Response and Events, have been agreed with the appropriate component vendor (such as Dome, TMA, Hexapod), and captured in ICD's (Interface Control Documents).The OpenSplice (Prismtech) Community Edition of DDS provides an LGPL licensed distribution which may be freely redistributed. The availability of the full source code provides assurances that the project will be able to maintain it over the full 10 year survey, independent of the fortunes of the original providers.

  19. Middleware Based Model of Heterogeneous Systems for SCADA Distributed Applications

    Directory of Open Access Journals (Sweden)

    UNGUREAN, I.

    2010-05-01

    Full Text Available Infrastructure underlying the distributed information systems is heterogeneous and very complex. Middleware allows the development of distributed information systems, without knowing the functioning details of an infrastructure, by its abstracting. An essential issue on designing such systems is represented by choosing the middleware technologies. An architectural model of a SCADA system based on middleware is proposed in this paper. This system is formed of servers that centralize data and clients, which receive information from a server, thus allowing the chart displaying of such information. All these components own a specific functionality and can exchange information, by means of a middleware bus. A middleware bus signifies a software bus, where more middleware technologies can coexist.

  20. Consolidation and development roadmap of the EMI middleware

    CERN Document Server

    CERN. Geneva

    2012-01-01

    Scientific research communities have benefited recently from the increasing availability of computing and data infrastructures with unprecedented capabilities for large scale distributed initiatives. These infrastructures are largely defined and enabled by the middleware they deploy. One of the major issues in the current usage of research infrastructures is the need to use similar but often incompatible middleware solutions. The European Middleware Initiative (EMI) is a collaboration of the major European middleware providers ARC, dCache, gLite and UNICORE. EMI aims to: deliver a consolidated set of middleware components for deployment in EGI, PRACE and other Distributed Computing Infrastructures; extend the interoperability between grids and other computing infrastructures; strengthen the reliability of the services; establish a sustainable model to maintain and evolve the middleware; fulfill the requirements of the user communities. This paper presents the consolidation and development objectives of the ...

  1. A lightweight high availability strategy for Atlas LCG File Catalogs

    Energy Technology Data Exchange (ETDEWEB)

    Martelli, Barbara; Salvo, Alessandro de; Anzellotti, Daniela; Rinaldi, Lorenzo; Cavalli, Alessandro; Pra, Stefano dal; Dell' Agnello, Luca; Gregori, Daniele; Prosperini, Andrea; Ricci, Pier Paolo; Sapunenko, Vladimir, E-mail: barbara.martelli@cnaf.infn.i [Viale Berti Pichat 6/2, Bologna I-40127 (Italy)

    2010-04-01

    The LCG File Catalog is a key component of the LHC Computing Grid middleware [1], as it contains the mapping between Logical File Names and Physical File Names on the Grid. The Atlas computing model foresees multiple local LFC housed in each Tier-1 and Tier-0, containing all information about files stored in the regional cloud. As the local LFC contents are presently not replicated anywhere, this turns out in a dangerous single point of failure for all of the Atlas regional clouds. In order to solve this problem we propose a novel solution for high availability (HA) of Oracle based Grid services, obtained by composing an Oracle Data Guard deployment and a series of application level scripts. This approach has the advantage of being very easy to deploy and maintain, and represents a good candidate solution for all Tier-2s which are usually little centres with little manpower dedicated to service operations. We also present the results of a wide range of functionality and performance tests run on a test-bed having characteristics similar to the ones required for production. The test-bed consists of a failover deployment between the Italian LHC Tier-1 (INFN - CNAF) and an Atlas Tier-2 located at INFN - Roma1. Moreover, we explain how the proposed strategy can be deployed on the present Grid infrastructure, without requiring any change to the middleware and in a way that is totally transparent to end users and applications.

  2. A lightweight high availability strategy for Atlas LCG File Catalogs

    Science.gov (United States)

    Martelli, Barbara; de Salvo, Alessandro; Anzellotti, Daniela; Rinaldi, Lorenzo; Cavalli, Alessandro; dal Pra, Stefano; dell'Agnello, Luca; Gregori, Daniele; Prosperini, Andrea; Ricci, Pier Paolo; Sapunenko, Vladimir

    2010-04-01

    The LCG File Catalog is a key component of the LHC Computing Grid middleware [1], as it contains the mapping between Logical File Names and Physical File Names on the Grid. The Atlas computing model foresees multiple local LFC housed in each Tier-1 and Tier-0, containing all information about files stored in the regional cloud. As the local LFC contents are presently not replicated anywhere, this turns out in a dangerous single point of failure for all of the Atlas regional clouds. In order to solve this problem we propose a novel solution for high availability (HA) of Oracle based Grid services, obtained by composing an Oracle Data Guard deployment and a series of application level scripts. This approach has the advantage of being very easy to deploy and maintain, and represents a good candidate solution for all Tier-2s which are usually little centres with little manpower dedicated to service operations. We also present the results of a wide range of functionality and performance tests run on a test-bed having characteristics similar to the ones required for production. The test-bed consists of a failover deployment between the Italian LHC Tier-1 (INFN - CNAF) and an Atlas Tier-2 located at INFN - Roma1. Moreover, we explain how the proposed strategy can be deployed on the present Grid infrastructure, without requiring any change to the middleware and in a way that is totally transparent to end users and applications.

  3. Understanding the requirements imposed by programming model middleware on a common communication subsystem.

    Energy Technology Data Exchange (ETDEWEB)

    Buntinas, D.; Gropp, W.

    2005-12-13

    In high-performance parallel computing, most programming-model middleware libraries and runtime systems use a communication subsystem to abstract the lower-level network layer. The functionality required of a communication subsystem depends largely on the programming model implemented by the middleware. In order to maximize performance, middleware libraries and runtime systems typically implement their own communication subsystems that are specially tuned for the middleware, rather than use an existing communication subsystem. This situation leads to duplicated effort and prevents different middleware libraries from being used by the same application in hybrid programming models. In this paper we describe features required by various middleware libraries as well as some desirable features that would make it easier to port a middleware library to the communication subsystem and allow the middleware to make use of high-performance features provided by some networking layers. We show that none of the communication subsystems that we evaluate support all of the features.

  4. Security of healthcare information systems based on the CORBA middleware.

    Science.gov (United States)

    Blobel, B; Holena, M

    1997-01-01

    The development of healthcare systems in accordance to the "Shared Care" paradigm results in co-operative health information systems across the boundaries of organisational, technological, and policy domains. Increasingly, these distributed and heterogeneous systems are based on middleware approaches, such as CORBA. Regarding the sensitivity of personal and medical data, such open, distributed, and heterogeneous health information systems demand a high level of data protection and data security, both with respect to patient information and with respect to users. The security concepts and measures available and additionally needed in health information systems based on CORBA architecture are described in this paper. The proposed security solution is also open to other middleware approaches, such as DHE or HL7.

  5. Secure Link Middleware

    Science.gov (United States)

    2008-08-01

    Secure Link middleware as specified by the circled ‘sld’, sld . Using a network traffic analyzer (e.g., tcpdump) at router bulldog and tiger, ARL...or nfs (remote accessing file systems) to be securely operated and used among networked computer systems without any bulldog (router3) bear (router2

  6. MongoDB high availability

    CERN Document Server

    Mehrabani, Afshin

    2014-01-01

    This book has a perfect balance of concepts and their practical implementation along with solutions to make a highly available MongoDB server with clear instructions and guidance. If you are using MongoDB in a production environment and need a solution to make a highly available MongoDB server, this book is ideal for you. Familiarity with MongoDB is expected so that you understand the content of this book.

  7. Dynamic reconfiguration in sensor middleware

    OpenAIRE

    Grace, P.; Coulson, G; Blair, Gordon S.; Porter, B. (collab.); Hughes, Daniel

    2006-01-01

    Middleware solutions for sensor networks have so far mainly focused on communication abstractions, ad-hoc message routing protocols, and power conservation techniques. We argue that customisation and dynamic reconfiguration of sensor network middleware are additional important dimensions to consider. This paper describes a sensor middleware that can be customised to suit different sensor application types, and provides a reflective approach for co-ordinated network-wide dynamic reconfiguratio...

  8. The next-generation ARC middleware

    DEFF Research Database (Denmark)

    Appleton, O.; Cameron, D.; Cernak, J.

    2010-01-01

    The Advanced Resource Connector (ARC) is a light-weight, non-intrusive, simple yet powerful Grid middleware capable of connecting highly heterogeneous computing and storage resources. ARC aims at providing general purpose, flexible, collaborative computing environments suitable for a range of use...

  9. A survey of secure middleware for the Internet of Things

    Directory of Open Access Journals (Sweden)

    Paul Fremantle

    2017-05-01

    Full Text Available The rapid growth of small Internet connected devices, known as the Internet of Things (IoT, is creating a new set of challenges to create secure, private infrastructures. This paper reviews the current literature on the challenges and approaches to security and privacy in the Internet of Things, with a strong focus on how these aspects are handled in IoT middleware. We focus on IoT middleware because many systems are built from existing middleware and these inherit the underlying security properties of the middleware framework. The paper is composed of three main sections. Firstly, we propose a matrix of security and privacy threats for IoT. This matrix is used as the basis of a widespread literature review aimed at identifying requirements on IoT platforms and middleware. Secondly, we present a structured literature review of the available middleware and how security is handled in these middleware approaches. We utilise the requirements from the first phase to evaluate. Finally, we draw a set of conclusions and identify further work in this area.

  10. Introducing high availability to non high available designed applications

    Energy Technology Data Exchange (ETDEWEB)

    Zelnicek, Pierre; Kebschull, Udo [Kirchhoff Institute of Physics, Ruprecht-Karls-University Heidelberg (Germany); Haaland, Oystein Senneset [Physic Institut, University of Bergen, Bergen (Norway); Lindenstruth, Volker [Frankfurt Institut fuer Advanced Studies, University Frankfurt (Germany)

    2010-07-01

    A common problem in scientific computing environments and compute clusters today, is how to apply high availability to legacy applications. These applications are becoming more and more a problem in increasingly complex environments and with business grade availability constraints that requires 24 x 7 x 365 hours of operation. For a majority of applications, redesign is not an option. Either because of being closed source or the effort involved would be just as great as re-writing the application from scratch. Neither is letting normal operators restart and reconfigure the applications on backup nodes a solution. In addition to the possibility of mistakes from non-experts and the cost of keeping personnel at work 24/7, these kind of operations would require administrator privileges within the compute environment and would therefore be a security risk. Therefore, these legacy applications have to be monitored and if a failure occurs autonomously migrated to a working node. The pacemaker framework is designed for both tasks and ensures the availability of the legacy applications. Distributed redundant block devices are used for fault tolerant distributed data storage. The result is an Availability Environment Classification 2 (AEC-2).

  11. Laboratory Automation and Middleware.

    Science.gov (United States)

    Riben, Michael

    2015-06-01

    The practice of surgical pathology is under constant pressure to deliver the highest quality of service, reduce errors, increase throughput, and decrease turnaround time while at the same time dealing with an aging workforce, increasing financial constraints, and economic uncertainty. Although not able to implement total laboratory automation, great progress continues to be made in workstation automation in all areas of the pathology laboratory. This report highlights the benefits and challenges of pathology automation, reviews middleware and its use to facilitate automation, and reviews the progress so far in the anatomic pathology laboratory.

  12. ILDG Middleware Working Group Status Report

    Energy Technology Data Exchange (ETDEWEB)

    B. Joo; W. Watson

    2004-09-01

    We report on the status of the ILDG Middleware Working Group. The Middleware Working Group was formed with the aim of designing standard middleware to allow the interoperation of the data grids of ILDG member collaborations. Details of the working group are given. In this contribution we outline the role of middleware in the ILDG, present our proposed middleware architecture and discuss our current status and future work within the working group.

  13. SEMAN: A Novel Secure Middleware for Mobile Ad Hoc Networks

    Directory of Open Access Journals (Sweden)

    Eduardo da Silva

    2016-01-01

    Full Text Available As a consequence of the particularities of Mobile Ad Hoc Networks (MANETs, such as dynamic topology and self-organization, the implementation of complex and flexible applications is a challenge. To enable the deployment of these applications, several middleware solutions were proposed. However, these solutions do not completely consider the security requirements of these networks. Based on the limitations of the existing solutions, this paper presents a new secure middleware, called Secure Middleware for Ad Hoc Networks (SEMAN, which provides a set of basic and secure services to MANETs aiming to facilitate the development of distributed, complex, and flexible applications. SEMAN considers the context of applications and organizes nodes into groups, also based on these contexts. The middleware includes three modules: service, processing, and security. Security module is the main part of the middleware. It has the following components: key management, trust management, and group management. All these components were developed and are described in this paper. They are supported by a cryptographic core and behave according to security rules and policies. The integration of these components provides security guarantees against attacks to the applications that usethe middleware services.

  14. Grids Portals: Frameworks, Middleware or Toolkit

    Directory of Open Access Journals (Sweden)

    Xavier Medianero-Pasco

    2010-05-01

    Full Text Available Grid portals are interfaces for interconnection between Grid resources and users. Grid portals are supported by components called portlets, servlets and middleware. Frameworks, middleware and/or development toolkits are used in the design and development of grid portals; each of them presents distinctive characteristics like any existing tool for grid portals such as: GridSphere, GridPort, PortalLab and others. The concept and definition of the components of a Grid Portal are not clear at the time of their application, because different models and works are appointed arbitrarily without taking into account the approach and features of the concept. Their clarification can give an insight to each grid portal and existing components.

  15. An RFID middleware for supply chain management

    Directory of Open Access Journals (Sweden)

    Artur Pinto Carneiro

    2011-12-01

    Full Text Available RFID (Radio Frequency Identification systems for identification and tracking of products and equipments have been progressively adopted as an essential tool for supply chain management, a production environment where the members usually share with each other their own logistic and management systems. Therefore, the development of supply chain RFID systems can be strongly simplified through the inclusion of an intermediate software layer – the middleware – responsible for the creation of interfaces to integrate all the heterogeneous software components. In this article we present a case study developed at IPT (Instituto de Pesquisas Tecnológicas do Estado de São Paulo which gave rise to a middleware prototype able to implement the required software integration on the supply chain of an electric power distribution company. The developed middleware is used to manage the interactions with a heterogeneous group of mobile devices  cell phones, handhelds and data colectors,  operated by different supply chain agents that grab data associated to various processes executed by a given electric power distribution equipment during its life cycle and transfer those data to a central database in order to share them with all the logistic and management corporation systems.

  16. A Humanoid System Infrastructure: The RIBSI Middleware

    Science.gov (United States)

    Toda, Kengo; Tomiyama, Ken

    A new middleware framework that is implemented as the RIBSI (Real-time Interactive Behavior-Sensing Interface) middleware on our original humanoid morph2 is proposed. A hierarchical control system architecture for humanoids is developed for morph2 that consists of a device layer, a middleware layer, which is the proposed RIBSI middleware, and an application layer. The RIBSI middleware provides the upper layer of the humanoid system with individual motor devices, integrated virtual action generation devices, individual sensor devices and virtual sensors integrating sensor information. The proposed middleware works as an infrastructure of the humanoid control system, and can respond to asynchronous requests from the upper layer. In order to verify the capabilities of the proposed middleware, the humanoid control system implementing the RIBSI middleware is evaluated not only on humanoid morph2 but also on a quadrupedal locomotion robot.

  17. A Glance at the Middleware Technology

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    After describing the concept of middleware,this paper discussesthe position an d value of middleware among modern software technologies,summarizes some kinds o f common middleware.This paper also gives some proposals for developing middlewa re in China.

  18. Controls Middleware the New Generation

    CERN Document Server

    Kostro, K; Calderini, F; Chevrier, F L; Jensen, S; Swoboda, R; Trofimov, N N

    2002-01-01

    A new Controls Middleware (CMW) for the "LHC era" has been recently designed and implemented to serve the CERN accelerator sector. It is object-oriented and supports two conceptual models: The Device model traditionally used in accelerator controls and the Topic model, which is widely used in the commercial world. Unlikely previous middleware solutions, developed in the 80's, this middleware is completely build upon commercial standards: CORBA for synchronous calls, JMS (Java Message Service) for message passing and OPC (OLE for Process Control) for integration of industrial equipment. The subscription paradigm is supported in both Device and Topic models. This paper presents the system architecture and an overview of the user facilities and API's. The experience with CMW, the issues of integration of CORBA, JMS and OPC and system administration are addressed as well.

  19. Cosmological Simulations using Grid Middleware

    CERN Document Server

    Caniou, Y; Depardon, B; Courtois, H; Teyssier, R

    2006-01-01

    One way to access the aggregated power of a collection of heterogeneous machines is to use a grid middleware, such as DIET, GridSolve or NINF. It addresses the problem of monitoring the resources, of handling the submissions of jobs and as an example the inherent transfer of input and output data, in place of the user. In this paper we present how to run cosmological simulations using the RAMSES application along with the DIET middleware. We will describe how to write the corresponding DIET client and server. The remainder of the paper is organized as follows: Section 2 presents the DIET middleware. Section 3 describes the RAMSES cosmological software and simulations, and how to interface it with DIET. We show how to write a client and a server in Section 4. Finally, Section 5 presents the experiments realized on Grid'5000, the French Research Grid, and we conclude in Section 6.

  20. PerPos: a Translucent Positioning Middleware Supporting Adaptation of Internal Positioning Processes

    DEFF Research Database (Denmark)

    Jensen, Jakob Langdal; Schougaard, Kari Rye; Kjærgaard, Mikkel Baun;

    2010-01-01

    process. To address this problem this paper proposes a positioning middleware named PerPos that is translucent and adaptable, i.e., it supports both high- and low-level interaction. The PerPos middleware provides translucency with respect to the positioning process and allows programmatic definition...

  1. Exposing Position Uncertainty in Middleware

    DEFF Research Database (Denmark)

    Langdal, Jakob; Kjærgaard, Mikkel Baun; Toftkjær, Thomas;

    2010-01-01

    Traditionally, the goal for positioning middleware is to provide developers with seamless position transparency, i.e., providing a connection between the application domain and the positioning sensors while hiding the complexity of the positioning technologies in use. A key part of the hidden com...

  2. The new CERN Controls Middleware

    Science.gov (United States)

    Dworak, A.; Ehm, F.; Charrue, P.; Sliwinski, W.

    2012-12-01

    The Controls Middleware (CMW) project was launched over ten years ago. Its main goal was to unify middleware solutions used to operate the CERN accelerator complex. A key part of the project, the equipment access library RDA, was based on CORBA, an unquestionable middleware standard at the time. RDA became an operational and critical part of the infrastructure, yet the demanding run-time environment revealed shortcomings of the system. Accumulation of fixes and workarounds led to unnecessary complexity. RDA became difficult to maintain and to extend. CORBA proved to be rather a cumbersome product than a panacea. Fortunately, many new transport frameworks appeared since then. They boasted a better design and supported concepts that made them easier to use. Willing to profit from the coming long LHC shutdown which will make it possible to update the operational software, the CMW team reviewed user requirements and in their terms investigated eventual CORBA substitutes. Evaluation of several market recognized products helped to identify the most-suitable middleware solution: ZeroMQ. This article presents the results of the evaluation process, the proposed design and functionality of the new system as well as the plan of its integration with the currently deployed system.

  3. Smart Grid Communication Middleware Comparison

    DEFF Research Database (Denmark)

    Petersen, Bo Søborg; Bindner, Henrik W.; Poulsen, Bjarne

    2017-01-01

    are possible by their performance, which is limited by the middleware characteristics, primarily interchangeable serialization and the Publish-Subscribe messaging pattern. The earlier paper “Smart Grid Serialization Comparison” (Petersen et al. 2017) aids in the choice of serialization, which has a big impact...... the strongest candidates for Smart Grid distributed control, but WAMP should also be considered in the future....

  4. On Interaction Refinement in Middleware

    DEFF Research Database (Denmark)

    Truyen, Eddy; Jørgensen, Bo Nørregaard; Joosen, Wouter;

    2000-01-01

    components together. We have examined a reflective technique that improve the dynamics of this gluing process such that interaction between components can be refined at run-time. In this paper, we show how we have used this reflective technique to dynamically integrate into the architecture of middleware...

  5. Middleware to integrate heterogeneous Learning Management Systems and initial results

    Directory of Open Access Journals (Sweden)

    J. A. Hijar Miranda

    2014-10-01

    Full Text Available The use of the Learning Management Systems (LMS has been increased. It is desirable to access multiple learning objects that are managed by Learning Management Systems. The diversity of LMS allow us to consider them as heterogeneous systems; each ones with their own interface to manage the provided functionality. These interfaces can be Web services or calls to remote objects. The functionalities offered by LMS depend on their user roles. A solution to integrate diverse heterogeneous platforms is based on a middleware architecture. In this paper, a middleware architecture is presented to integrate different Learning Management Systems. Furthermore, an implementation of the proposed middleware is presented. This implementation integrates two different Learning Management Systems, using Web services and XML-RPC protocols to access student-role users capabilities. The result is a transparent layer that provides access to LMS contents.

  6. MIMC: Middleware for Identifying & Mitigating Congestion Level in Hybrid Mobile Adhoc Network

    Directory of Open Access Journals (Sweden)

    P. G. Sunitha Hiremath

    2016-11-01

    Full Text Available Adoption of middleware system to solve the congestion problem in mobile ad-hoc network is few to find in the existing system. Research gap is found as existing congestion control mechanism in MANET doesn’t use middleware design and existing middleware system were never investigated for its applicability in congestion control over the mobile ad-hoc network. Therefore, we introduce a novel middleware system called as MIMC or Middleware for Identifying and Mitigating Congestion in Hybrid Mobile Adhoc Network. MIMC is also equipped with novel traf-fic modeling using rule-based control matrix that not only pro-vides a better scenario of congestion but also assists in decision making for routing, which the existing techniques fails. This paper discusses the algorithms, result discussion on multiple scenarios to show MIMC perform better congestion control as compared to existing techniques.

  7. Using Context Awareness for Self Management in Pervasive Service Middleware

    DEFF Research Database (Denmark)

    Zhang, Weishan; Hansen, Klaus Marius

    2011-01-01

    Context-awareness is an important feature in Ambient Intelligence environments including in pervasive middleware. In addition, there is a growing trend and demand on self-management capabilities for a pervasive middleware in order to provide high-level dependability for services. In this chapter......, we propose to make use of context-awareness features to facilitate self-management. To achieve self-management, dynamic contexts for example device and service statuses, are critical to take self-management actions. Therefore, we consider dynamic contexts in context modeling, specifically as a set...... of OWL/SWRL ontologies, called the Self-Management for Pervasive Services (SeMaPS) ontologies. Self-management rules can be developed based on the SeMaPS ontologies to achieve self-management goals. Our approach is demonstrated within the LinkSmart pervasive middleware. Finally, our experiments...

  8. Frameworks and middleware for umanned ground vehicles

    Science.gov (United States)

    Broten, Greg S.; Monckton, Simon P.

    2005-05-01

    Modern unmanned vehicles (UV) are complex systems. The current generation of UVs have extensive capabilities allowing the UV to sense its environment, create an internal representation of the environment, navigate within this environment by commanding movement and accomplish this in real-time. This proliferation of UV capabilities has resulted in large and complex software systems that are often distributed across multiple processors. Such systems have a reputation for convoluted implementations that result in software that is difficult to understand, expand, debug and repair. In order for a UV to operate successfully this issue of complex distributed software systems must be mastered. The computing science field views a modular, component based design as the best approach for implementing complex distributed software systems. Methodologies and toolkits such as frameworks and middleware have been developed to enable and simplify the implementation of distributed software systems. DRDC and other research institutions are developing UVs frameworks using CORBA middleware. A CORBA interface enables location transparency, thus it does not matter whether the component is locally or remotely located. The UV autonomy framework developed at DRDC is based upon the Miro framework which was originally developed for soccer playing robots. The Miro framework implements many key features and methods required by autonomous systems and Miro's basis in CORBA allows it to be easily modified and extended to support the unique requirements of military UVs. DRDC has modified and extended Miro so that it now supports autonomous unmanned ground vehicles. The process of implementing these changes substantiated the advantages of frameworks and middleware since Miro proved to be highly flexible and easy to extend.

  9. NEXUS - Resilient Intelligent Middleware

    Science.gov (United States)

    Kaveh, N.; Hercock, R. Ghanea

    Service-oriented computing, a composition of distributed-object computing, component-based, and Web-based concepts, is becoming the widespread choice for developing dynamic heterogeneous software assets available as services across a network. One of the major strengths of service-oriented technologies is the high abstraction layer and large granularity level at which software assets are viewed compared to traditional object-oriented technologies. Collaboration through encapsulated and separately defined service interfaces creates a service-oriented environment, whereby multiple services can be linked together through their interfaces to compose a functional system. This approach enables better integration of legacy and non-legacy services, via wrapper interfaces, and allows for service composition at a more abstract level especially in cases such as vertical market stacks. The heterogeneous nature of service-oriented technologies and the granularity of their software components makes them a suitable computing model in the pervasive domain.

  10. An Efficient Middleware for Storing and Querying XML Data in Relational Database Management System

    Directory of Open Access Journals (Sweden)

    Mohammed A.I. Fakheraldien

    2011-01-01

    Full Text Available Problem statement: In this study, we propose a middleware that provides a transformation utility for storing and querying XML data in relational databases using model mapping method. Approach: To store XML documents in RDBMS, several mapping approaches can be used. We chose structure independent approach. In this middleware the model mapping method XParent and free of cost available technologies MYSQL, PhpMyAdmin and PHPclasses are used as examples. Results: This middleware stores XML tables and does not require a direct extension of SQL thus this middleware can be used with any relational databases management system with little changes in the middleware interface. The middleware offers two alternative methods -namely XParent and XReal- for storing XML in the database. Conclusion: The key to proposed middleware is to store XML document in a relational database through a user interface and with an XPath query processor. We present a comparative experimental study on the performance of insertion and retrieval of two types of XML documents with a set of XPath queries executed though the XPath. XML and Relational databases cannot be kept separately because XML is becoming the universal standard data format for the representation and exchanging the information whereas most existing data lies in RDBMS and their power of data capabilities cannot be degraded so the solution to this problem a middleware prototype is required. The proposed schema dependent solutions have a drawback that evens a small change in the logical structure of XML documents influence on the database schemas and several problems occur during the updating process. A new efficient data middleware is proposed in the study to face these issues.

  11. Study on the Context-Aware Middleware for Ubiquitous Greenhouses Using Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Jeonghwang Hwang

    2011-04-01

    Full Text Available Wireless Sensor Network (WSN technology is one of the important technologies to implement the ubiquitous society, and it could increase productivity of agricultural and livestock products, and secure transparency of distribution channels if such a WSN technology were successfully applied to the agricultural sector. Middleware, which can connect WSN hardware, applications, and enterprise systems, is required to construct ubiquitous agriculture environment combining WSN technology with agricultural sector applications, but there have been insufficient studies in the field of WSN middleware in the agricultural environment, compared to other industries. This paper proposes a context-aware middleware to efficiently process data collected from ubiquitous greenhouses by applying WSN technology and used to implement combined services through organic connectivity of data. The proposed middleware abstracts heterogeneous sensor nodes to integrate different forms of data, and provides intelligent context-aware, event service, and filtering functions to maximize operability and scalability of the middleware. To evaluate the performance of the middleware, an integrated management system for ubiquitous greenhouses was implemented by applying the proposed middleware to an existing greenhouse, and it was tested by measuring the level of load through CPU usage and the response time for users’ requests when the system is working.

  12. High availability of hybrid wireless networks

    Science.gov (United States)

    Leitgeb, Erich; Gebhart, Michael; Birnbacher, Ulla; Kogler, Wolfgang; Schrotter, Peter

    2004-09-01

    Free Space Optical (FSO) links offer high bandwidth and the flexibility of wireless communication links. However, the availability of FSO links is limited by weather patterns like fog and heavy snowfall. Microwave based communication links operating at high frequencies (40 - 43 GHz) have similar characteristics like high data rates and needed line-of-sight. Link availability for microwave systems is limited by heavy rain. Combining FSO links with microwave links within a hybrid FSO/microwave communication network has the advantage of added redundancy and higher link availability. Measurements over a period of one year show a combined availability of 99.93% for the climatic region of Graz, Austria) which proves that the combination of both technologies leads to a highly available wireless connection offering high bandwidth.

  13. Open middleware for robotics

    CSIR Research Space (South Africa)

    Namoshe, M

    2008-12-01

    Full Text Available Despite advances in recent years, autonomous multi-robot systems remain classed as complex systems, because control and coordination of these systems remain a challenging task. Autonomous mobile robot houses heterogeneous sets of connected modular...

  14. Roadmap for the ARC Grid Middleware

    DEFF Research Database (Denmark)

    Kleist, Josva; Eerola, Paula; Ekelöf, Tord

    2006-01-01

    The Advanced Resource Connector (ARC) or the NorduGrid middleware is an open source software solution enabling production quality computational and data Grids, with special emphasis on scalability, stability, reliability and performance. Since its first release in May 2002, the middleware is depl...

  15. Middleware entre aplicacions clients i CRM's

    OpenAIRE

    2015-01-01

    Es tracta d'un middleware destinat a una empresa automobilística i a tota la informació relacionada amb les noves tecnologies instal·lades als seus vehicles i components externs. It is a middleware intended for a car company and all the information related to the new technologies installed in their vehicles and external components.

  16. A principled approach to grid middleware

    DEFF Research Database (Denmark)

    Berthold, Jost; Bardino, Jonas; Vinter, Brian

    2011-01-01

    This paper provides an overview of MiG, a Grid middleware for advanced job execution, data storage and group collaboration in an integrated, yet lightweight solution using standard software. In contrast to most other Grid middlewares, MiG is developed with a particular focus on usability and mini......This paper provides an overview of MiG, a Grid middleware for advanced job execution, data storage and group collaboration in an integrated, yet lightweight solution using standard software. In contrast to most other Grid middlewares, MiG is developed with a particular focus on usability...... and minimal system requirements, applying strict principles to keep the middleware free of legacy burdens and overly complicated design. We provide an overview of MiG and describe its features in view of the Grid vision and its relation to more recent cloud computing trends....

  17. Supporting Seamful Development of Positioning Applications through Model Based Translucent Middleware

    DEFF Research Database (Denmark)

    Jensen, Jakob Langdal

    design for context aware applications in general are advocating that seams (problem areas caused by technologies interconnecting) can be exploited by end-users if they are made available to them. A system allowing this kind of interaction is said to be seamfully designed as opposed to the traditional...... goal of ubiquitous computing where seamlessness is advocated. Another challenge is to provide middleware designers a set of tools that allow them to build translucent middleware, i.e., middleware where the level of openness can be differentiated. Such middleware should provide application developers......Positioning technologies are becoming ever more pervasive, and they are used for a growing number of applications in a broad range of fields. We aim to support software developers who create position based applications. More specifically, how support can be provided through the use of specialized...

  18. Microsoft Exchange Server 2013 high availability

    CERN Document Server

    Mota, Nuno

    2014-01-01

    This book is a hands-on practical guide that provides the reader with a number of clear scenarios and examples, making it easier to understand and apply the new concepts. Each chapter can be used as a reference, or it can be read from beginning to end, allowing consultants/administrators to build a solid and highly available Exchange 2013 environment. If you are a messaging professional who wants to learn to design a highly available Exchange 2013 environment, this book is for you. Although not a definite requirement, practical experience with Exchange 2010 is expected, without being a subject

  19. Enabling High Data Availability in a DHT

    NARCIS (Netherlands)

    Knezevic, Predrag; Wombacher, Andreas; Risse, Thomas

    Many decentralized and peer-to-peer applications require some sort of data management. Besides P2P file-sharing, there are already scenarios (e.g. BRICKS project) that need management of finer-grained objects including updates and, keeping them highly available in very dynamic communities of peers.

  20. Features Management and Middleware of Hybrid Cloud Infrastructures

    Directory of Open Access Journals (Sweden)

    Evgeny Nikulchev

    2016-01-01

    Full Text Available The wide spread of cloud computing has identified the need to develop specialized approaches to the design, management and programming for cloud infrastructures. In the article were reviewed the peculiarities of the hybrid cloud and middleware software development, adaptive to implementing the principles of governance and change in the structure of storing data in clouds. The examples and results of experimental research are presented.

  1. Impact of the Use of Object Request Broker Middleware for Inter-Component Communications in C6416 Digital Signal Processor Based Software Communications Architecture Radio Systems

    Directory of Open Access Journals (Sweden)

    Mohamed I. Yousef

    2012-01-01

    Full Text Available Problem statement: This study presents an in-depth analysis of the performance of Software Communications Architecture (SCA component-based waveform applications in terms of inter-component communications. The main limitation with SCA, in the context of embedded systems, is the additional cost introduced by the use of Object Request Broker (ORB middleware. The ORB middleware handles the interaction between components and objects in SCA distributed environment. This interaction should be highly efficient, due to the real time nature of SCA systems and transparent to the application programmer. Approach: We can achieve high efficiency in SCA systems by enhancing the Inter-Process Communications (IPC mechanisms in Operating systems (OS micro kernels, while we achieve transparency through Interface Definition Language (IDL. Different encoding mechanisms like “External Data Representation (XDR, Network Data Representation (NDR and Common Data Representation (CDR facilitate inter-component communication transparently and efficiently”. Marshalling procedures format data from the local machine representation to common network representations. A most common encoding mechanism for Common Object Request Broker Architecture (CORBA systems is CDR representation. Measurements have been performed with ORBExpress DSP as a CORBA distribution and Open Source SCA Implementation Embedded (OSSIE for SCA implementation. In order to perform these measurements we proposed two metrics for profiling the ORB that are invocation and marshalling. In addition, we propose three elements of data types to evaluate the performance of ORB middleware that are, Basic, Array and Sequence data types. Results: The CORBA bus is really the part, which brings an overhead to the SCA radio systems. This overhead is due to method invocations that have been carried out by ORB middleware. Conclusion: Performance benchmarks of ORBExpress DSP middleware show that, although using CORBA for

  2. A survey of context-aware middleware

    DEFF Research Database (Denmark)

    Kjær, Kristian Ellebæk

    2007-01-01

    This paper provides a survey of a chosen set of context aware middleware systems, and categorises their properties and use according to a taxonomy. An overview of each system is provided, as well as descriptions of the different properties.......This paper provides a survey of a chosen set of context aware middleware systems, and categorises their properties and use according to a taxonomy. An overview of each system is provided, as well as descriptions of the different properties....

  3. Multilateral Security in Middleware Based Telecommunications Architectures

    OpenAIRE

    Staamann, S.; Wilhelm, U; Buttyan, Levente

    1999-01-01

    The concept of middleware based architectures for telecommunication services in the broadband, multimedia, and information era is emerging. One representative example is the Telecommunications Information Networking Architecture (TINA), which is characterised by a variety of services, a multitude of service providers, a well defined business model, a middleware platform for service development and provision, and the assumption of advanced costumer premises equipment. Concepts for its security...

  4. Performance measuring framework for grid market middleware

    OpenAIRE

    Freitag, Fèlix; Chacín Martínez, Pablo; Chao, Isaac; Brunner, René; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar

    2007-01-01

    Current implementations of Grid infrastructures provide frameworks which aim at achieve on-demand computing. In such a scenario, contribution and use of resources will be governed by business models. The challenge is to provide multi-level performance information which enables the participation of the different actors in such a system. In this paper we describe the performance measuring framework developed for Grid Market Middleware, a middleware which supports economic-model based selection ...

  5. A Highly Available Grid Metadata Catalog

    DEFF Research Database (Denmark)

    Jensen, Henrik Thostrup; Kleist, Joshva

    2009-01-01

    This article presents a metadata catalog, intended foruse in grids. The catalog provides high availability, by replication across several hosts. The replicas are kept consistent using a replication protocol based on the Paxos algorithm. A majority of the replicas must be available in order...... for the system to function. The data model used in the catalog is RDF, which allows users to create theirown name spaces and schemas. Querying is performed using SPARQL. Additionally the catalog can be used as a synchronization mechanism, by utilizing a compare and swap operation. The catalog is accessed using...... HTTP with proxy certificates, and uses GACL for flexible access control.The performance of the catalog is tested in several ways, including a distributed setup between geographically separated sites....

  6. Middleware Interoperability for Robotics: A ROS-YARP Framework

    Directory of Open Access Journals (Sweden)

    Plinio Moreno

    2016-10-01

    Full Text Available Middlewares are fundamental tools for progress in research and applications in robotics. They enable the integration of multiple heterogeneous sensing and actuation devices, as well as providing general purpose modules for key robotics functions (kinematics, navigation, planning. However, no existing middleware yet provides a complete set of functionalities for all robotics applications, and many robots may need to rely on more than one framework. This paper focuses on the interoperability between two of the most prevalent middleware in robotics: YARP and ROS. Interoperability between middlewares should ideally allow users to execute existing software without the necessity of: (i changing the existing code, and (ii writing hand-coded ``bridges'' for each use-case. We propose a framework enabling the communication between existing YARP modules and ROS nodes for robotics applications in an automated way. Our approach generates the ``bridging gap'' code from a configuration file, connecting YARP ports and ROS topics through code-generated YARP Bottles. %%The configuration file must describe: (i the sender entities, (ii the way to group and convert the information read from the sender, (iii the structure of the output message and (iv the receiving entity. Our choice for the many inputs to one output is the most common use-case in robotics applications, where examples include filtering, decision making and visualization. %We support YARP/ROS and ROS/YARP sender/receiver configurations, which are demonstrated in a humanoid on wheels robot that uses YARP for upper body motor control and visual perception, and ROS for mobile base control and navigation algorithms.

  7. AAL Middleware Infrastructure for Green Bed Activity Monitoring

    Directory of Open Access Journals (Sweden)

    Filippo Palumbo

    2013-01-01

    Full Text Available This paper describes a service-oriented middleware platform for ambient assisted living and its use in two different bed activity services: bedsore prevention and sleeping monitoring. A detailed description of the middleware platform, its elements and interfaces, as well as a service that is able to classify some typical user's positions in the bed is presented. Wireless sensor networks are supposed to be widely deployed in indoor settings and on people's bodies in tomorrow's pervasive computing environments. The key idea of this work is to leverage their presence by collecting the received signal strength measured among fixed general-purpose wireless sensor devices, deployed in the environment, and wearable ones. The RSS measurements are used to classify a set of user's positions in the bed, monitoring the activities of the user, and thus supporting the bedsores and the sleep monitoring issues. Moreover, the proposed services are able to decrease the energy consumption by exploiting the context information coming from the proposed middleware.

  8. Network Distributed Monitoring System Based on Robot Technology Middleware

    Directory of Open Access Journals (Sweden)

    Kunikatsu Takase

    2008-11-01

    Full Text Available In this paper, a network distributed monitoring system for human assistance robot system was developed to improve the interaction among the users and local service robotic system and enable a remote user to get a better understanding of what is going on in the local environment. Home integration robot system and network monitoring system using QuickCam Orbit cameras were developed and demonstrated from June 9 to June 19 at the 2005 World Exposition, Aichi, Japan. Improvements of network distributed monitoring system using IEEE1394 cameras with high performance and high resolution have been done in order to extend the application of system. Robot Technology Middleware (RTM was used in the developed system. By using RTM, we can develop cameras functional elements as RT software components that can be implemented by different programming languages, run in different operating system, or connected in different networks to interoperate.It is also easy to create comprehensive robot system application by reusing existing modules thus facilitating networkdistributed software sharing and improving the cost of writing and maintaining software.

  9. Ontology-Based Context-Aware Middleware for Smart Spaces

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Context-awareness enhances human-centric, intelligent behavior in a smart environment; however,context-awareness is not widely used due to the lack of effective infrastructure to support context-aware applications. This paper presents an agent-based middleware for providing context-aware services for smart spaces to afford effective support for context acquisition, representation, interpretation, and utilization to applications. The middleware uses a formal context model, which combines first order probabilistic logic (FOPL) and web ontology language (OWL) ontologies, to provide a common understanding of contextual information to facilitate context modeling and reasoning about imperfect and ambiguous contextual information and to enable context knowledge sharing and reuse. A context inference mechanism based on an extended Bayesian network approach is used to enable automated reactive and deductive reasoning. The middleware is used in a case study in a smart classroom, and performance evaluation result shows that the context reasoning algorithm is good for non-time-critical applications and that the complexity is highly sensitive to the size of the context dataset.

  10. MinT: Middleware for Cooperative Interaction of Things.

    Science.gov (United States)

    Jeon, Soobin; Jung, Inbum

    2017-06-20

    This paper proposes an Internet of Things (IoT) middleware called Middleware for Cooperative Interaction of Things (MinT). MinT supports a fully distributed IoT environment in which IoT devices directly connect to peripheral devices easily construct a local or global network, and share their data in an energy efficient manner. MinT provides a sensor abstract layer, a system layer and an interaction layer. These enable integrated sensing device operations, efficient resource management, and active interconnection between peripheral IoT devices. In addition, MinT provides a high-level API to develop IoT devices easily for IoT device developers. We aim to enhance the energy efficiency and performance of IoT devices through the performance improvements offered by MinT resource management and request processing. The experimental results show that the average request rate increased by 25% compared to Californium, which is a middleware for efficient interaction in IoT environments with powerful performance, an average response time decrease of 90% when resource management was used, and power consumption decreased by up to 68%. Finally, the proposed platform can reduce the latency and power consumption of IoT devices.

  11. Evaluating ITER remote handling middleware concepts

    Energy Technology Data Exchange (ETDEWEB)

    Koning, J.F., E-mail: j.f.koning@differ.nl [FOM Institute DIFFER, Association EURATOM-FOM, Partner in the Trilateral Euregio Cluster and ITER-NL, PO Box 1207, 3430 BE Nieuwegein (Netherlands); Heemskerk, C.J.M.; Schoen, P.; Smedinga, D. [Heemskerk Innovative Technology, Noordwijk (Netherlands); Boode, A.H. [University of Applied Sciences InHolland, Alkmaar (Netherlands); Hamilton, D.T. [ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France)

    2013-10-15

    Highlights: ► Remote Handling Study Centre: middleware system setup and modules built. ► Aligning to ITER RH Control System Layout: prototype of database, VR and simulator. ► OpenSplice DDS, ZeroC ICE messaging and object oriented middlewares reviewed. ► Windows network latency found problematic for semi-realtime control over the network. -- Abstract: Remote maintenance activities in ITER will be performed by a unique set of hardware systems, supported by an extensive software kit. A layer of middleware will manage and control a complex set of interconnections between teams of operators, hardware devices in various operating theatres, and databases managing tool and task logistics. The middleware is driven by constraints on amounts and timing of data like real-time control loops, camera images, and database access. The Remote Handling Study Centre (RHSC), located at FOM institute DIFFER, has a 4-operator work cell in an ITER relevant RH Control Room setup which connects to a virtual hot cell back-end. The centre is developing and testing flexible integration of the Control Room components, resulting in proof-of-concept tests of this middleware layer. SW components studied include generic human-machine interface software, a prototype of a RH operations management system, and a distributed virtual reality system supporting multi-screen, multi-actor, and multiple independent views. Real-time rigid body dynamics and contact interaction simulation software supports simulation of structural deformation, “augmented reality” operations and operator training. The paper presents generic requirements and conceptual design of middleware components and Operations Management System in the context of a RH Control Room work cell. The simulation software is analyzed for real-time performance and it is argued that it is critical for middleware to have complete control over the physical network to be able to guarantee bandwidth and latency to the components.

  12. Digitally Controlled High Availability Power Supply

    Energy Technology Data Exchange (ETDEWEB)

    MacNair, David; /SLAC

    2009-05-07

    This paper will report on the test results of a prototype 1320 watt power module for a high availability power supply. The module will allow parallel operation for N+1 redundancy with hot swap capability. The two quadrant output of each module allows pairs of modules to provide a 4 quadrant (bipolar) operation. Each module employs a novel 4 FET buck regulator arranged in a bridge configuration. Each side of the bridge alternately conducts through a small saturable ferrite that limits the reverse current in the FET body diode during turn off. This allows hard switching of the FETs with low switching losses. The module is designed with over-rated components to provide high reliability and better then 97% efficiency at full load. The modules use a Microchip DSP for control, monitoring, and fault detection. The switching FETS are driven by PWM modules in the DSP at 60 KHz. A Dual CAN bus interface provides for low cost redundant control paths. The DSP will also provide current sharing between modules, synchronized switching, and soft start up for hot swapping. The input and output of each module have low resistance FETs to allow hot swapping and isolation of faulted units.

  13. Smart TV-Smartphone Multiscreen Interactive Middleware for Public Displays

    Directory of Open Access Journals (Sweden)

    Francisco Martinez-Pabon

    2015-01-01

    Full Text Available A new generation of public displays demands high interactive and multiscreen features to enrich people’s experience in new pervasive environments. Traditionally, research on public display interaction has involved mobile devices as the main characters during the use of personal area network technologies such as Bluetooth or NFC. However, the emergent Smart TV model arises as an interesting alternative for the implementation of a new generation of public displays. This is due to its intrinsic connection capabilities with surrounding devices like smartphones or tablets. Nonetheless, the different approaches proposed by the most important vendors are still underdeveloped to support multiscreen and interaction capabilities for modern public displays, because most of them are intended for domestic environments. This research proposes multiscreen interactive middleware for public displays, which was developed from the principles of a loosely coupled interaction model, simplicity, stability, concurrency, low latency, and the usage of open standards and technologies. Moreover, a validation prototype is proposed in one of the most interesting public display scenarios: the advertising.

  14. A MIDDLEWARE FOR THE INTERNET OF THINGS

    Directory of Open Access Journals (Sweden)

    Mahmoud Elkhodr

    2016-03-01

    Full Text Available The Internet of Things (IoT connects everyday objects including a vast array of sensors, actuators, and smart devices, referred to as “things” to the Internet, in an intelligent and pervasive fashion. This connectivity gives rise to the possibility of using the tracking capabilities of things to impinge on the location privacy of users. Most of the existing management and location privacy protection solutions do not consider the low-cost and low-power requirements of things; or, they do not account for the heterogeneity, scalability, or autonomy of communications supported in the IoT. Moreover, these traditional solutions do not consider the case where a user wishes to control the granularity of the disclosed information based on the context of their use (e.g. based on the time or the current location of the user. To fill this gap, a middleware, referred to as the Internet of Things Management Platform (IoT-MP is proposed in this paper.

  15. Information Retrieval Using a Middleware Approach

    Directory of Open Access Journals (Sweden)

    Danijela Boberić Krstićev

    2013-03-01

    Full Text Available This paper explores the use of a mediator/wrapper approach to enable the search of an existing library management system using different information retrieval protocols. It proposes an architecture for a software component that will act as an intermediary between the library system and search services. It provides an overview of different approaches to add Z39.50 and Search/Retrieval via URL (SRU functionality using a middleware approach that is implemented on the BISIS library management system. That wrapper performs transformation of Contextual Query Language (CQL into Lucene query language. The primary aim of this software component is to enable search and retrieval of bibliographic records using the SRU and Z39.50 protocols, but the proposed architecture of the software components is also suitable for inclusion of the existing library management system into a library portal. The software component provides a single interface to server-side protocols for search and retrieval of records. Additional protocols could be used. This paper provides practical demonstration of interest to developers of library management systems and those who are trying to use open-source solutions to make their local catalog accessible to other systems.

  16. Middleware Trends And Market Leaders 2011

    CERN Document Server

    Dworak, A; Ehm, F; Sliwinski, W; Sobczak, M

    2011-01-01

    The Controls Middleware (CMW) project was launched over ten years ago. Its main goal was to unify middleware solutions used to operate CERN accelerators. An important part of the project, the equipment access library RDA, was based on CORBA, an unquestionable standard at the time. RDA became an operational and critical part of the infrastructure, yet the demanding run-time environment revealed some shortcomings of the system. Accumulation of fixes and workarounds led to unnecessary complexity. RDA became difficult to maintain and to extend. CORBA proved to be rather a cumbersome product than a panacea. Fortunately, many new transport frameworks appeared since then. They boasted a better design and supported concepts that made them easy to use. Willing to profit from the new libraries, the CMW team updated user requirements and in their terms investigated eventual CORBA substitutes. The process consisted of several phases: a review of middleware solutions belonging to different categories (e.g. data-centric, o...

  17. Design and Implementation of Embedded RFID Middleware

    Science.gov (United States)

    Zhen-xiang, Li.; Yu-xiang, Zhang

    An embedded RFID (Radio Frequency Identification) middleware based on ARM Linux operating system and S3C2410 hardware platform was designed and implemented. The system architecture and platform of software and hardware of this middleware were introduced. The key technology applied in some device management and tag data processing and the application of SQLite were specialized. Since its rich standard interfaces offered by the hardware platform, the middleware can connect with different kind of readers from different manufacturers without cosidering the diversity and complexity of RFID bottom layer hardware. So, it can supply upper layer application of system with a powerful, uniform platform, and lay a broader, richer foundation for the application of RFID.

  18. High Available COTS Based Computer for Space

    Science.gov (United States)

    Hartmann, J.; Magistrati, Giorgio

    2015-09-01

    The availability and reliability factors of a system are central requirements of a target application. From a simple fuel injection system used in cars up to a flight control system of an autonomous navigating spacecraft, each application defines its specific availability factor under the target application boundary conditions. Increasing quality requirements on data processing systems used in space flight applications calling for new architectures to fulfill the availability, reliability as well as the increase of the required data processing power. Contrary to the increased quality request simplification and use of COTS components to decrease costs while keeping the interface compatibility to currently used system standards are clear customer needs. Data processing system design is mostly dominated by strict fulfillment of the customer requirements and reuse of available computer systems were not always possible caused by obsolescence of EEE-Parts, insufficient IO capabilities or the fact that available data processing systems did not provide the required scalability and performance.

  19. A Middleware road towards Web (Grid) Services

    CERN Document Server

    Ahmed, Zeeshan

    2010-01-01

    Middleware technologies is a very big field, containing a strong already done research as well as the currently running research to confirm already done research's results and the to have some new solution by theoretical as well as the experimental (practical) way. This document has been produced by Zeeshan Ahmed (Student: Connectivity Software Technologies Blekinge Institute of Technologies). This describes the research already done in the field of middleware technologies including Web Services, Grid Computing, Grid Services and Open Grid Service Infrastructure & Architecture. This document concludes with the overview of Web (Grid) Service, Chain of Web (Grid) Services and the necessary security issue.

  20. Open client/server computing and middleware

    CERN Document Server

    Simon, Alan R

    2014-01-01

    Open Client/Server Computing and Middleware provides a tutorial-oriented overview of open client/server development environments and how client/server computing is being done.This book analyzes an in-depth set of case studies about two different open client/server development environments-Microsoft Windows and UNIX, describing the architectures, various product components, and how these environments interrelate. Topics include the open systems and client/server computing, next-generation client/server architectures, principles of middleware, and overview of ProtoGen+. The ViewPaint environment

  1. Availability Analysis for High Voltage Synchronous Motor

    Institute of Scientific and Technical Information of China (English)

    DING Jin-hua; Erland Olsson; ZHOU Rong

    2004-01-01

    The operating experience data for 34 motors running for approximately 15 years in paper plants are collected. According to the data set, the reliability and availability characteristics of a highvoltage synchronous motor are analyzed based on the Markov Model. The unit or subsystem main rotor with windings in the motor system is more important for the motor system's availability, though its failure rate is lower compared to other units. Preventive maintenance is first introduced as a state in the markov Model for the motor system.

  2. Selected papers from Middleware'98: The IFIP International Conference on Distributed Systems Platforms and Open Distributed Processing

    Science.gov (United States)

    Davies, Nigel; Raymond, Kerry; Blair, Gordon

    1999-03-01

    -time and multimedia applications. The framework provides mechanisms by which services such as CORBA ORBs can be constructed as personalities which exploit the services provided by the underlying minimal kernel. The issue of engineering ORBs is taken further in the second paper, `The implementation of a high-performance ORB over multiple network transports' by Lo and Pope. This paper is of particular interest since it presents the concrete results of running a modern ORB, i.e. omniORB2, over a range of transport mechanisms, including TCP/IP, shared memory and ATM AAL5. However, in order for middleware to progress, future platforms must tackle the issue of scalability as well as that of performance. For this reason we have included two papers, `Systems support for scalable and fault tolerant Internet services' by Chawathe and Brewer and `A scalable middleware solution for advanced wide-area Web services' by van Steen et al, which address the problems inherent in developing scalable middleware. Although the two papers focus on different problems in this area, they are both motivated by the explosion of services and information made available through the World Wide Web. Indeed, the role of the World Wide Web as a component in middleware platforms featured prominently in the conference and this is reflected in our choice of the paper by Cao et al entitled `Active Cache: caching dynamic contents on the Web'. Motivated once again by the problems of scalability, Cao et al propose a system to support the caching of dynamic documents. This is achieved by enabling small applets to be cached along with pages and run by the cache servers. The issues of security, trust and resource utilization raised by such a system are explored in detail by the authors. Finally, `Mobile Java objects' by Hayton et al considers these issues still further as part of the authors' work on adding object mobility to Java. Together, the six papers contained within this issue of Distributed Systems Engineering

  3. Wireless sensors in heterogeneous networked systems configuration and operation middleware

    CERN Document Server

    Cecilio, José

    2014-01-01

    This book presents an examination of the middleware that can be used to configure and operate heterogeneous node platforms and sensor networks. The middleware requirements for a range of application scenarios are compared and analysed. The text then defines middleware architecture that has been integrated in an approach demonstrated live in a refinery. Features: presents a thorough introduction to the major concepts behind wireless sensor networks (WSNs); reviews the various application scenarios and existing middleware solutions for WSNs; discusses the middleware mechanisms necessary for hete

  4. Reconfigurable middleware architectures for large scale sensor networks

    Energy Technology Data Exchange (ETDEWEB)

    Brennan, Sean M.

    2010-03-01

    Wireless sensor networks, in an e ffort to be energy efficient, typically lack the high-level abstractions of advanced programming languages. Though strong, the dichotomy between these two paradigms can be overcome. The SENSIX software framework, described in this dissertation, uniquely integrates constraint-dominated wireless sensor networks with the flexibility of object-oriented programming models, without violating the principles of either. Though these two computing paradigms are contradictory in many ways, SENSIX bridges them to yield a dynamic middleware abstraction unifying low-level resource-aware task recon figuration and high-level object recomposition.

  5. Template Driven Code Generator for HLA Middleware

    NARCIS (Netherlands)

    Jansen, R.E.J.; Prins, L.M.; Huiskamp, W.

    2007-01-01

    HLA is the accepted standard for simulation interoperability. However, the HLA services and the API that is provided for these services are relatively complex from the user point of view. Since the early days of HLA, federate developers have attempted to simplify their task by using middleware that

  6. Template Driven Code Generator for HLA Middleware

    NARCIS (Netherlands)

    Jansen, R.E.J.; Prins, L.M.; Huiskamp, W.

    2007-01-01

    HLA is the accepted standard for simulation interoperability. However, the HLA services and the API that is provided for these services are relatively complex from the user point of view. Since the early days of HLA, federate developers have attempted to simplify their task by using middleware that

  7. Evaluating ITER remote handling middleware concepts

    NARCIS (Netherlands)

    Koning, J. F.; Heemskerk, C. J. M.; Schoen, P.; Smedinga, D.; Boode, A. H.; Hamilton, D. T.

    2013-01-01

    Remote maintenance activities in ITER will be performed by a unique set of hardware systems, supported by an extensive software kit. A layer of middleware will manage and control a complex set of interconnections between teams of operators, hardware devices in various operating theatres, and

  8. PostgreSQL 9 high availability cookbook

    CERN Document Server

    Thomas, Shaun M

    2014-01-01

    A comprehensive series of dependable recipes to design, build, and implement a PostgreSQL server architecture free of common pitfalls that can operate for years to come. Each chapter is packed with instructions and examples to simplify even highly complex database operations. If you are a PostgreSQL DBA working on Linux systems who want a database that never gives up, this book is for you. If you've ever experienced a database outage, restored from a backup, spent hours trying to repair a malfunctioning cluster, or simply want to guarantee system stability, this book is definitely for you.

  9. A thin, hardware-supported middleware management system for reconfigurable manufacturing systems

    Directory of Open Access Journals (Sweden)

    McLean, Roscoe Roy Peter

    2015-05-01

    Full Text Available The reconfigurable manufacturing system (RMS paradigm was introduced in response to the need for a manufacturing environment that can handle high-frequency market-driven change. Although this has resulted in much research into the implementation of such a system, there is currently a gap in the technology covering the rapid establishment of control after a reconfiguration. This gap involves the detection of the factory floor’s state, and the communication link between the factory floor and the high-level software (ERP and MES. This paper proposes a thin, hardware-supported middleware management system to support the reconfiguration process and to support industrial implementation to the RMS paradigm.

  10. Experience Supporting the Integration of LHC Experiments Software Framework with the LCG Middleware

    CERN Document Server

    Santinelli, Roberto

    2006-01-01

    The LHC experiments are currently preparing for data acquisition in 2007 and because of the large amount of required computing and storage resources, they decided to embrace the grid paradigm. The LHC Computing Project (LCG) provides and operates a computing infrastructure suitable for data handling, Monte Carlo production and analysis. While LCG offers a set of high level services, intended to be generic enough to accommodate the needs of different Virtual Organizations, the LHC experiments software framework and applications are very specific and focused on the computing and data models. The LCG Experiment Integration Support team works in close contact with the experiments, the middleware developers and the LCG certification and operations teams to integrate the underlying grid middleware with the experiment specific components. The strategical position between the experiments and the middleware suppliers allows EIS team to play a key role at communications level between the customers and the service provi...

  11. A Distributed Middleware Architecture for Attack-Resilient Communications in Smart Grids

    Energy Technology Data Exchange (ETDEWEB)

    Hodge, Brian S [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Wu, Yifu [University of Akron; Wei, Jin [University of Akron

    2017-07-31

    Distributed Energy Resources (DERs) are being increasingly accepted as an excellent complement to traditional energy sources in smart grids. As most of these generators are geographically dispersed, dedicated communications investments for every generator are capital cost prohibitive. Real-time distributed communications middleware, which supervises, organizes and schedules tremendous amounts of data traffic in smart grids with high penetrations of DERs, allows for the use of existing network infrastructure. In this paper, we propose a distributed attack-resilient middleware architecture that detects and mitigates the congestion attacks by exploiting the Quality of Experience (QoE) measures to complement the conventional Quality of Service (QoS) information to detect and mitigate the congestion attacks effectively. The simulation results illustrate the efficiency of our proposed communications middleware architecture.

  12. A Distributed Middleware Architecture for Attack-Resilient Communications in Smart Grids: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Yifu; Wei, Jin; Hodge, Bri-Mathias

    2017-05-24

    Distributed energy resources (DERs) are being increasingly accepted as an excellent complement to traditional energy sources in smart grids. Because most of these generators are geographically dispersed, dedicated communications investments for every generator are capital-cost prohibitive. Real-time distributed communications middleware - which supervises, organizes, and schedules tremendous amounts of data traffic in smart grids with high penetrations of DERs - allows for the use of existing network infrastructure. In this paper, we propose a distributed attack-resilient middleware architecture that detects and mitigates the congestion attacks by exploiting the quality of experience measures to complement the conventional quality of service information to effectively detect and mitigate congestion attacks. The simulation results illustrate the efficiency of our proposed communications middleware architecture.

  13. SOAP Serialization Performance Enhancement - Design And Implementation Of A Middleware

    Directory of Open Access Journals (Sweden)

    Behrouz Minaei

    2009-10-01

    Full Text Available The most straightforward way to improve performance of any system is to define the bottlenecks and think of ways to remove them. Web services are the inseparable part of any web application, as a result enhancing performance of web services will have a great effect on the overall performance of the system. The most widely used communication protocol in the web services model, SOAP, is a simple protocol for the exchange of messages. The serialization of large SOAP responses is a major performance bottleneck in a SOAP message exchange. Clearly, some web servers can expect to receive many similar messages for a particular web service as they share the same signature. The idea behind this paper is to avoid the redundant serialization stage of SOAP responses for request which have the same call parameters. The technique exploits the similarities between call parameters to improve web service Response Time by avoiding redundant serialization of the same response with the help of a middleware running on top of web server. The middleware will maintain a trie of incoming parameters for every set of current requests. This way request processing and serialization of the response of same requests will be done only once. In a nutshell, to serialize only the different responses is the simplest way to avoid extra work done by a serializer. It might worth noting that although our approach is to utilize the exact repeating portion parameters, the middleware can be configured to apply changes made to the result set of response to the serialized response being maintained in a trie to generate valid results.

  14. A Survey of Middleware in different languages for Ubiquitous Services

    Directory of Open Access Journals (Sweden)

    Neha Sharma

    2013-03-01

    Full Text Available The advent of abrupt advancement in technology and availability of numerous applications has made it imperative to adopt a technology that is felicitous for every domain. There exists a huge count of technologies working in all domains. The transient nature of technology itself is a reason for it being obsolete. Enterprise application development (EAI solutions support many on-going projects ranging from proprietary, open or academic projects to scientific experiments. After analysing various middleware, we agreed on the fact that a language works best in a specific domain but may not be amicable with other domains. The rapid augmentation in technology and unstable requirements are responsible for having dearth in languages. Therefore, succinctly the environment is unstable and will be in future as well. This research discusses middleware technologies available in various languages. In this paper, on the basis of literature survey we present a comparative analysis of their features, flexibility, scalability and trade-offs and making it impeccable at some extent is what we aspire.

  15. A uniform instrumentation, event, and adaptation framework for network-aware middleware and advanced network applications

    Energy Technology Data Exchange (ETDEWEB)

    Reed, Daniel A. [Univ. of Illinois, Urbana, IL (United States)

    2003-03-14

    Developers of advanced network applications such as remote instrument control, distributed data management, tele-immersion and collaboration, and distributed computing face a daunting challenge: sustaining robust application performance despite time-varying resource demands and dynamically changing resource availability. It is widely recognized that network-aware middleware is key to achieving performance robustness.

  16. SOA-based security governance middleware

    CERN Document Server

    de Leusse, Pierre; 10.1109/SECURWARE.2010.17

    2012-01-01

    Business requirements for rapid operational efficiency, customer responsiveness as well as rapid adaptability are actively driving the need for ever increasing communication and integration apabilities of software assets. In this context, security, although acknowledged as being a necessity, is often perceived as a hindrance. Indeed, dynamic environments require flexible and understandable security that can be customized, adapted and reconfigured dynamically to face changing requirements. In this paper, the authors propose SOA based security governance middleware that handles security requirements on behalf of a resource exposed through it. The middleware aims at providing different security settings through the use of managed compositions of security services called profiles. The main added value of this work compared to existing handlers or centralized approaches lies in its enhanced flexibility and transparency.

  17. Designing middleware for context awareness in agriculture

    DEFF Research Database (Denmark)

    Kjær, Kristian Ellebæk

    2008-01-01

    , and increasingly advanced GPS units. However, except for location based services, like knowing your location based on GPS, context awareness has not really materialised yet. In modern agriculture, computers are pervasive, but only in the sense that they are present everywhere. All types of equipment, ranging from...... context about the individual agricultural worker, e.g. in the form of location or current activity. Knowing the context of the farm and the workers may then be utilised for building pervasive computing applications to support the daily work at farms, e.g. by easing access to information which is useful...... to overcome these challenges, using semantic technologies. We also study new ways of designing such middleware, in that we make the end user of the applications built with the middleware participate in the requirement gathering and design phases....

  18. CoMM:Configurable Multimedia Middleware

    Institute of Scientific and Technical Information of China (English)

    SUN Song-lin; MA Yu-feng; CAI An-ni; SUN Jing-ao

    2004-01-01

    This paper presents the architecture of a Configurable Multimedia Middleware (CoMM). For distributed environments, the component based software framework and object-oriented technology are used in CoMM. Which contributs that it may be configured for various multimedia services with the reusable components conveniently. Also, the active QoS adaption mechanism, which protects the server from overload with the management of the resource vector, is introduced in detail.

  19. Middleware for Pervasive Healthcare - A White Paper

    DEFF Research Database (Denmark)

    Bardram, Jakob Eyvind; Christensen, Henrik Bærbak

    2001-01-01

    solution, and CfPC. The aim of the paper is to present and discuss a vision of a middleware architecture for pervasive computing within clinical work settings. Our research is grounded in careful observations of clinical work within a hospital and we start by outlining recurring scenarios in the daily life...... of healthcare staff and sketch how pervasive middelware technologies may provide a strong foundation for pervasive and mobile solutions in this setting....

  20. An IoT Middleware Framework for Industrial Applications

    Directory of Open Access Journals (Sweden)

    Nicoleta-Cristina Gaitan

    2016-09-01

    Full Text Available Starting from the RFID and the wireless sensor networks, the Internet of connected things has attracted the attention of major IT companies and later, of the industrial environment that recognized the concept as one of their key axes for future growth and development. The implementation of IoT in the industrial environment raises some significant issues related to the diversity of fieldbuses, the large number of devices and their configuration. The requirements related to reliability, security and real-time are very important. This paper proposes an industrial IoT and communications at the edge framework which has some outstanding features related to: the easy integration of fieldbuses and devices used in industrial environments with automatic configuration features, integration of multiple middleware technologies (CORBA, OPC and DDS, the uncoupling of the industrial activity from the publishing data on the Internet, security at different levels of the framework. Another important feature of the proposed framework is that it is based on mature standards and on open source or public implementations of these standards. The framework is modular, allowing the easy integration of new fieldbus protocols, middleware technologies and new objects in the client application. This paper is focused mainly on CORBA and DDS approaches.

  1. Managing RFID Sensors Networks with a General Purpose RFID Middleware

    Directory of Open Access Journals (Sweden)

    Enrique Valero

    2012-06-01

    Full Text Available RFID middleware is anticipated to one of the main research areas in the field of RFID applications in the near future. The Data EPC Acquisition System (DEPCAS is an original proposal designed by our group to transfer and apply fundamental ideas from System and Data Acquisition (SCADA systems into the areas of RFID acquisition, processing and distribution systems. In this paper we focus on how to organize and manage generic RFID sensors (edge readers, readers, PLCs, etc… inside the DEPCAS middleware. We denote by RFID Sensors Networks Management (RSNM this part of DEPCAS, which is built on top of two new concepts introduced and developed in this work: MARC (Minimum Access Reader Command and RRTL (RFID Reader Topology Language. MARC is an abstraction layer used to hide heterogeneous devices inside a homogeneous acquisition network. RRTL is a language to define RFID Reader networks and to describe the relationship between them (concentrator, peer to peer, master/submaster.

  2. Context-aware middleware architecture for vertical handover support to multi-homed nomadic mobile services

    NARCIS (Netherlands)

    Pawar, Pravin; Wac, Katarzyna; Beijnum, van Bert-Jan; Maret, Pierre; Halteren, van Aart; Hermens, Hermie

    2008-01-01

    To accommodate the requirements such as high usability and personalization of 4G (mobile) networks, conventional handheld single network-interface mobile devices are evolving into multihomed devices. Moreover, owing to the recent advances in the mobile middleware technologies, hardware technologies

  3. A Survey of Middleware in different languages for Ubiquitous Services

    Directory of Open Access Journals (Sweden)

    Neha Sharma,

    2013-04-01

    Full Text Available The advent of abrupt advancement in technologyand availability of numerous applications has madeit imperative to adopt a technology that is felicitousfor every domain. There exists a huge count oftechnologies working in all domains. The transientnature of technology itself is a reason for it beingobsolete. Enterprise application development (EAIsolutions support many on-going projects rangingfrom proprietary, open or academic projects toscientific experiments. After analysing variousmiddleware, we agreed on the fact that a languageworks best in a specific domain but may not beamicable with other domains. The rapidaugmentation in technology and unstablerequirements are responsible for having dearth inlanguages. Therefore, succinctly the environment isunstable and will be in future as well. This researchdiscusses middleware technologies available invarious languages.In this paper, on the basis ofliterature survey we present a comparative analysisof their features, flexibility, scalability and trade-offs and making it impeccable at some extent iswhat we aspire.

  4. Toward a Comprehensive Framework for Evaluating the Core Integration Features of Enterprise Integration Middleware Technologies

    Directory of Open Access Journals (Sweden)

    Hossein Moradi

    2013-01-01

    Full Text Available To achieve greater automation of their business processes, organizations face the challenge of integrating disparate systems. In attempting to overcome this problem, organizations are turning to different kinds of enterprise integration. Implementing enterprise integration is a complex task involving both technological and business challenges and requires appropriate middleware technologies. Different enterprise integration solutions provide various functions and features which lead to the complexity of their evaluation process. To overcome this complexity, appropriate tools for evaluating the core integration features of enterprise integration solutions is required. This paper proposes a new comprehensive framework for evaluating the core integration features of both intra-enterprise and inter-enterprise Integration's enabling technologies, which simplify the process of evaluating the requirements met by enterprise integration middleware technologies.The proposed framework for evaluating the core integration features of enterprise integration middleware technologies was enhanced using the structural and conceptual aspects of previous frameworks. It offers a new schema for which various enterprise integration middleware technologies are categorized in different classifications and are evaluated based on their supporting level for the core integration features' criteria. These criteria include the functional and supporting features. The proposed framework, which is a revised version of our previous framework in this area, has developed the scope, structure and content of the mentioned framework.

  5. CDTOM: A Context-driven Task-oriented Middleware for Pervasive Homecare Environment

    Directory of Open Access Journals (Sweden)

    Hongbo Ni

    2011-02-01

    Full Text Available With the growing number of the elderly, we see a greater demand for home care, and the vision of pervasive computing is also floating into the domain of the household that aims to build a smart homewhich can assist inhabitants (users to live more conveniently and harmoniously. Such health-care pervasive applications in smart home should focus on the inhabitant’s goal or task in diverse situations,rather than the various complex devices and services. The core challenge for homecare design is to perceive the environment and assess occurring situations, thus allowing systems to behave intelligently according to the user’s intent. Due to the dynamic and heterogeneous nature of pervasive computing environment, it is difficult for an average user to obtain right information and service and in right place at right time. This paper proposes a context-driven task-oriented middleware (CDTOM to meet the challenge. The most important component is its task model that provides an adequate high-level description of user-oriented tasks and their related contexts. Leveraging the model multiple entities can easilyexchange, share and reuse their knowledge. Based on the hierarchy of task ontology, a novel task recognition approach using CBR (case-based reasoning is presented and the performance of taskrecognition is evaluated by task number, context size and time costing. Moreover, a dynamic mechanism for mapping the recognized task and services is also discussed. Finally, we present the design and implementation of our task supporting system (TSS to aid an inhabitant’s tasks in light of his lifestyle and environment conditions in pervasive homecare environment, and the results of the prototype system show that our middleware approach achieves good efficiency of context management and good accuracy ofuser’s activity inference, and can improve efficiently quality of user’s life.

  6. Experience with CORBA communication middleware in the ATLAS DAQ.

    CERN Document Server

    Kolos, S; Amorim, A; Badescu, E; Burckhart-Chromek, Doris; Caprini, M; Dobson, M; Fiuza de Barrosb, N; Flammerd, J; Jones, R; Kazarov, A; Klose, D; Korobov, S; Kotov, V; Liko, D; Mapelli, L; Mineev, M; Pedro, L; Ryabov, Yu; Soloviev, I; Computing In High Energy Physics

    2005-01-01

    As modern High Energy Physics (HEP) experiments require more distributed computing power to fulfill their demands, the need of an efficient distributed online services for control, configuration and monitoring in such experiments becomes increasingly important. This paper describes experience of using standard Common Object Request Broker Architecture (CORBA) middleware for providing a high performance and scalable software, which will be used for the online control, configuration and monitoring in the ATLAS Data Acquisition (DAQ) system. It also recites the experience, which was gained from using several CORBA implementations together and replacing one CORBA broker with another. Finally the paper presents the results of the large scale tests, demonstrating the performance and scalability of the ATLAS DAQ online services. These results show that the standard CORBA is truly appropriate for the highly efficient online distributed computing in the HEP experiments area.

  7. A Cloud-Based Car Parking Middleware for IoT-Based Smart Cities: Design and Implementation

    Directory of Open Access Journals (Sweden)

    Zhanlin Ji

    2014-11-01

    Full Text Available This paper presents the generic concept of using cloud-based intelligent car parking services in smart cities as an important application of the Internet of Things (IoT paradigm. This type of services will become an integral part of a generic IoT operational platform for smart cities due to its pure business-oriented features. A high-level view of the proposed middleware is outlined and the corresponding operational platform is illustrated. To demonstrate the provision of car parking services, based on the proposed middleware, a cloud-based intelligent car parking system for use within a university campus is described along with details of its design, implementation, and operation. A number of software solutions, including Kafka/Storm/Hbase clusters, OSGi web applications with distributed NoSQL, a rule engine, and mobile applications, are proposed to provide ‘best’ car parking service experience to mobile users, following the Always Best Connected and best Served (ABC&S paradigm.

  8. FTT-MA: A Flexible Time-Triggered Middleware Architecture for Time Sensitive, Resource-Aware AmI Systems

    Directory of Open Access Journals (Sweden)

    Federico Pérez

    2013-05-01

    Full Text Available There is an increasing number of Ambient Intelligence (AmI systems that are time-sensitive and resource-aware. From healthcare to building and even home/office automation, it is now common to find systems combining interactive and sensing multimedia traffic with relatively simple sensors and actuators (door locks, presence detectors, RFIDs, HVAC, information panels, etc.. Many of these are today known as Cyber-Physical Systems (CPS. Quite frequently, these systems must be capable of (1 prioritizing different traffic flows (process data, alarms, non-critical data, etc., (2 synchronizing actions in several distributed devices and, to certain degree, (3 easing resource management (e.g., detecting faulty nodes, managing battery levels, handling overloads, etc.. This work presents FTT-MA, a high-level middleware architecture aimed at easing the design, deployment and operation of such AmI systems. FTT-MA ensures that both functional and non-functional aspects of the applications are met even during reconfiguration stages. The paper also proposes a methodology, together with a design tool, to create this kind of systems. Finally, a sample case study is presented that illustrates the use of the middleware and the methodology proposed in the paper.

  9. Semantic message oriented middleware for publish/subscribe networks

    Science.gov (United States)

    Li, Han; Jiang, Guofei

    2004-09-01

    The publish/subscribe paradigm of Message Oriented Middleware provides a loosely coupled communication model between distributed applications. Traditional publish/subscribe middleware uses keywords to match advertisements and subscriptions and does not support deep semantic matching. To this end, we designed and implemented a Semantic Message Oriented Middleware system to provide such capabilities for semantic description and matching. We adopted the DARPA Agent Markup Language and Ontology Inference Layer, a formal knowledge representation language for expressing sophisticated classifications and enabling automated inference, as the topic description language in our middleware system. A simple description logic inference system was implemented to handle the matching process between the subscriptions of subscribers and the advertisements of publishers. Moreover our middleware system also has a security architecture to support secure communication and user privilege control.

  10. Real-world Bluetooth MANET Java Middleware

    DEFF Research Database (Denmark)

    Glenstrup, Arne John; Nielsen, Michael; Skytte, Frederik

    We present BEDnet, a Java based middleware for creating and maintaining a Bluetooth based mobile ad-hoc network (MANET). MANETs are key to nomadic computing: Mobile units can set up spontaneous local networks when needed, removing the need for fixed network infrastructure, either as wireless access....... Surprisingly, experiments showed that structured scatternet topologies are not significantly better than an ad hoc master/slave mesh topology. Experimental results also indicate that for routing a Bluetooth MANET, DSDV is more efficient than AODV, as DSDV requires less processing time per packet...

  11. Middleware solutions for the Internet of Things

    CERN Document Server

    Delicato, Flávia C; Batista, Thais

    2013-01-01

    After a brief introduction and contextualization on the Internet of Things (IoT) and Web of Things (WoT) paradigms, this timely new book describes one of the first research initiatives aimed at tackling the several challenges involved in building a middleware-layer infrastructure capable of realizing the WoT vision: the SmartSensor infrastructure. It is based on current standardization efforts and designed to manage a specific type of physical devices, those organized to shape a Wireless Sensor Network (WSN), where sensors work collaboratively, extracting data and transmitting it to external n

  12. Middleware de seguridad para el interworking WLAN-IMS

    Directory of Open Access Journals (Sweden)

    Oscar Caicedo

    2010-01-01

    Full Text Available El 3GPP plantea una arquitectura de seguridad para el interworking WLAN-3GPP, sin embargo ésta presenta ineficiencias en el procedimiento de autenticación, lo que produce un mayor, consumo de recursos de radio, procesamiento en los dispositivos y retardo en la autenticación. Debido a esto, en este artículo se propone un middleware de seguridad que reduce los pasos en la autenticación del interworking WLAN-3GPP y asegura la señalización SIP entre el equipo de usuario (UE, User Equipment y el Proxy CSCF (P-CSCF, Proxy - Call State Control Function del subsistema multimedia IP (IMS, IP Multimedia Subsystem.

  13. Runtime software architecture based on reflective middleware

    Institute of Scientific and Technical Information of China (English)

    HUANG Gang; MEI Hong; YANG Fuqing

    2004-01-01

    There exists a consensus that software architecture (SA) plays a central role in software development and also plays an important role in the lifecycle phases after software delivery. Particularly, SA can be used to reduce the great difficulty and cost of software maintenance and evolution. In this paper, runtime software architecture (RSA) based on reflective middleware is proposed to support architecture-based software maintenance and evolution. In this approach, the actual states and behaviors of the runtime system can be observed and manipulated in a consistent and understandable way through its architectural view. Being an accurate, up-to-date, semantic and operable view of SA, RSA looks components and connectors as "white-box" entities to accurately and thoroughly describe the runtime system, extends traditional architecture description languages to formally describe itself and naturally inherit plentiful semantics in traditional views of SA, and utilizes reflective middleware to observe and manipulate the runtime system. In order to demonstrate the feasibility of this approach, a reflective J2EE application server, called PKUAS, is implemented to observe and manipulate the components, connectors and constraints in the runtime system. Finally, the performance evaluation proves that making RSA explicit and operable at runtime has little effect on the runtime system.

  14. The D3 Middleware Architecture

    Science.gov (United States)

    Walton, Joan; Filman, Robert E.; Korsmeyer, David J.; Lee, Diana D.; Mak, Ron; Patel, Tarang

    2002-01-01

    DARWIN is a NASA developed, Internet-based system for enabling aerospace researchers to securely and remotely access and collaborate on the analysis of aerospace vehicle design data, primarily the results of wind-tunnel testing and numeric (e.g., computational fluid-dynamics) model executions. DARWIN captures, stores and indexes data; manages derived knowledge (such as visualizations across multiple datasets); and provides an environment for designers to collaborate in the analysis of test results. DARWIN is an interesting application because it supports high-volumes of data. integrates multiple modalities of data display (e.g., images and data visualizations), and provides non-trivial access control mechanisms. DARWIN enables collaboration by allowing not only sharing visualizations of data, but also commentary about and views of data. Here we provide an overview of the architecture of D3, the third generation of DARWIN. Earlier versions of DARWIN were characterized by browser-based interfaces and a hodge-podge of server technologies: CGI scripts, applets, PERL, and so forth. But browsers proved difficult to control, and a proliferation of computational mechanisms proved inefficient and difficult to maintain. D3 substitutes a pure-Java approach for that medley: A Java client communicates (though RMI over HTTPS) with a Java-based application server. Code on the server accesses information from JDBC databases, distributed LDAP security services, and a collaborative information system. D3 is a three tier-architecture, but unlike 'E-commerce' applications, the data usage pattern suggests different strategies than traditional Enterprise Java Beans - we need to move volumes of related data together, considerable processing happens on the client, and the 'business logic' on the server-side is primarily data integration and collaboration. With D3, we are extending DARWIN to handle other data domains and to be a distributed system, where a single login allows a user

  15. The D3 Middleware Architecture

    Science.gov (United States)

    Walton, Joan; Filman, Robert E.; Korsmeyer, David J.; Lee, Diana D.; Mak, Ron; Patel, Tarang

    2002-01-01

    DARWIN is a NASA developed, Internet-based system for enabling aerospace researchers to securely and remotely access and collaborate on the analysis of aerospace vehicle design data, primarily the results of wind-tunnel testing and numeric (e.g., computational fluid-dynamics) model executions. DARWIN captures, stores and indexes data; manages derived knowledge (such as visualizations across multiple datasets); and provides an environment for designers to collaborate in the analysis of test results. DARWIN is an interesting application because it supports high-volumes of data. integrates multiple modalities of data display (e.g., images and data visualizations), and provides non-trivial access control mechanisms. DARWIN enables collaboration by allowing not only sharing visualizations of data, but also commentary about and views of data. Here we provide an overview of the architecture of D3, the third generation of DARWIN. Earlier versions of DARWIN were characterized by browser-based interfaces and a hodge-podge of server technologies: CGI scripts, applets, PERL, and so forth. But browsers proved difficult to control, and a proliferation of computational mechanisms proved inefficient and difficult to maintain. D3 substitutes a pure-Java approach for that medley: A Java client communicates (though RMI over HTTPS) with a Java-based application server. Code on the server accesses information from JDBC databases, distributed LDAP security services, and a collaborative information system. D3 is a three tier-architecture, but unlike 'E-commerce' applications, the data usage pattern suggests different strategies than traditional Enterprise Java Beans - we need to move volumes of related data together, considerable processing happens on the client, and the 'business logic' on the server-side is primarily data integration and collaboration. With D3, we are extending DARWIN to handle other data domains and to be a distributed system, where a single login allows a user

  16. Configuring a Context-Aware Middleware for Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Ernesto Pimentel

    2012-06-01

    Full Text Available In the Future Internet, applications based on Wireless Sensor Networks will have to support reconfiguration with minimum human intervention, depending on dynamic context changes in their environment. These situations create a need for building these applications as adaptive software and including techniques that allow the context acquisition and decisions about adaptation. However, contexts use to be made up of complex information acquired from heterogeneous devices and user characteristics, making them difficult to manage. So, instead of building context-aware applications from scratch, we propose to use FamiWare, a family of middleware for Ambient Intelligence specifically designed to be aware of contexts in sensor and smartphone devices. It provides both, several monitoring services to acquire contexts from devices and users, and a context-awareness service to analyze and detect context changes. However, the current version of FamiWare does not allow the automatic incorporation related to the management of new contexts into the FamiWare family. To overcome this shortcoming, in this work, we first present how to model the context using a metamodel to define the contexts that must to be taken into account in an instantiation of FamiWare for a certain Ambient Intelligence system. Then, to configure a new context-aware version of FamiWare and to generate code ready-to-install within heterogeneous devices, we define a mapping that automatically transforms metamodel elements defining contexts into elements of the FamiWare family, and we also use the FamiWare configuration process to customize the new context-aware variant. Finally, we evaluate the benefits of our process, and we analyze both that the new version of the middleware works as expected and that it manages the contexts in an efficient way.

  17. CROWN: A service grid middleware with trust management mechanism

    Institute of Scientific and Technical Information of China (English)

    HUAI Jinpeng; HU Chunming; LI Jianxin; SUN Hailong; WO Tianyu

    2006-01-01

    Based on a proposed Web service-based grid architecture, a service grid middleware system called CROWN is designed in this paper. As the two kernel points of the middleware, the overlay-based distributed grid resource management mechanism is proposed, and the policy-based distributed access control mechanism with the capability of automatic negotiation of the access control policy and trust management and negotiation is also discussed in this paper. Experience of CROWN testbed deployment and application development shows that the middleware can support the typical scenarios such as computing-intensive applications, data-intensive applications and mass information processing applications.

  18. Context-Aware Middleware for Pervasive Elderly Homecare

    DEFF Research Database (Denmark)

    Pung, Hung Keng; Gu, Tao; Xue, Wenwei

    2009-01-01

    solution is the development of a context-aware middleware infrastructure for pervasive health/wellness-care. This allows the accurate and timely delivery of health/medical information among the patients, doctors and healthcare workers through a widespread deployment of wireless sensor networks and mobile...... of the middleware and demonstrated the concept of providing a continuing-care to an elderly with the collaborative interactions spanning multiple physical spaces: person, home, office and clinic. The results of the prototype show that our middleware approach achieves good efficiency of context query processing...... and good accuracy of activity recognition....

  19. A Heterogeneous Distributed Real-Time Scheduling System Based on Reflective Middleware%基于反射中间件的异构分布式实时调度系统

    Institute of Scientific and Technical Information of China (English)

    杨仕平; 熊光泽; 刘锦德

    2002-01-01

    In order to help manage the complexity, heterogeneity and dynamic inherent in distributed real-time systems, middleware of next generation should deal with changing environments and different client requirements. it is very necessary to resolve interoperability between heterogeneous schedulers. Therefore, this promotes the research of a heterogeneous distributed real-time scheduling system based on reflective middleware. The features of reflection technology and reflective middleware are described in detail first. As a result, proposed reflective middleware is used to resolve interoperability between heterogeneous schedulers in distributed real time system. The high performance,adaptability and feasibility of this middleware platform used to resolve interoperability between heterogeneous schedulers are proved in details by a concrete example. Future trends of research in this field are listed at the end.

  20. Design and reliability, availability, maintainability, and safety analysis of a high availability quadruple vital computer system

    Institute of Scientific and Technical Information of China (English)

    Ping TAN; Wei-ting HE; Jia LIN; Hong-ming ZHAO; Jian CHU

    2011-01-01

    With the development of high-speed railways in China,more than 2000 high-speed trains will be put into use.Safety and efficiency of railway transportation is increasingly important.We have designed a high availability quadruple vital computer (HAQVC) system based on the analysis of the architecture of the traditional double 2-out-of-2 system and 2-out-of-3 system.The HAQVC system is a system with high availability and safety,with prominent characteristics such as fire-new internal architecture,high efficiency,reliable data interaction mechanism,and operation state change mechanism.The hardware of the vital CPU is based on ARM7 with the real-time embedded safe operation system (ES-OS).The Markov modeling method is designed to evaluate the reliability,availability,maintainability,and safety (RAMS) of the system.In this paper,we demonstrate that the HAQVC system is more reliable than the all voting triple modular redundancy (AVTMR) system and double 2-out-of-2 system.Thus,the design can be used for a specific application system,such as an airplane or high-speed railway system.

  1. Highly Available DHTs: Keeping Data Consistency After Updates

    NARCIS (Netherlands)

    Knežević, P.; Wombacher, Andreas; Risse, T.

    2006-01-01

    The research in the paper is motivated by building a decentralized/P2P XML storage on top of a DHT (Distributed Hash Table). The storage must provide high data availability and support updates. High data availability in a DHT can be guaranteed by data replication. However, DHTs can not provide a

  2. FlexRFID: A Security and Service Control Policy-Based Middleware for Context-Aware Pervasive Computing

    Directory of Open Access Journals (Sweden)

    Mehdia Ajana El Khaddar

    2014-10-01

    Full Text Available Ubiquitous computing targets the provision of seamless services and applications by providing an environment that involves a variety of devices having different capabilities. The design of applications in these environments needs to consider the heterogeneous devices, applications preferences, and rapidly changing contexts. RFID and WSN technologies are widely used in today’s ubiquitous computing. In Wireless Sensor Networks, sensor nodes sense the physical environment and send the sensed data to the sink by multi-hops. WSN are used in many applications such as military and environment monitoring. In Radio Frequency Identification, a unique ID is assigned to a RFID tag which is associated with a real world object. RFID applications cover many areas such as Supply Chain Management (SCM, healthcare, library management, automatic toll collection, etc. The integration of both technologies will bring many advantages in the future of ubiquitous computing, through the provision of real-world tracking and context information about the objects. This will increase considerably the automation of an information system. In order to process the large volume of data captured by sensors and RFID readers in real time, a middleware solution is needed. This middleware should be designed in a way to allow the aggregation, filtering and grouping of the data captured by the hardware devices before sending them to the backend applications. In this paper we demonstrate how our middleware solution called FlexRFID handles large amount of RFID and sensor scan data, and executes applications’ business rules in real time through its policy-based Business Rules layer. The FlexRFID middleware provides easy addition and removal of hardware devices that capture data, as well as uses the business rules of the applications to control all its services. We demonstrate how the middleware controls some defined healthcare scenarios, and deals with the access control security

  3. High plant availability of phosphorus and low availability of cadmium in four biomass combustion ashes

    Energy Technology Data Exchange (ETDEWEB)

    Li, Xiaoxi, E-mail: Xiaoxi.Li@agro.au.dk; Rubæk, Gitte H.; Sørensen, Peter

    2016-07-01

    For biomass combustion to become a sustainable energy production system, it is crucial to minimise landfill of biomass ashes, to recycle the nutrients and to minimise the undesirable impact of hazardous substances in the ash. In order to test the plant availability of phosphorus (P) and cadmium (Cd) in four biomass ashes, we conducted two pot experiments on a P-depleted soil and one mini-plot field experiment on a soil with adequate P status. Test plants were spring barley and Italian ryegrass. Ash applications were compared to triple superphosphate (TSP) and a control without P application. Both TSP and ash significantly increased crop yields and P uptake on the P-depleted soil. In contrast, on the adequate-P soil, the barley yield showed little response to soil amendment, even at 300–500 kg P ha{sup −1} application, although the barley took up more P at higher applications. The apparent P use efficiency of the additive was 20% in ryegrass - much higher than that of barley for which P use efficiencies varied on the two soils. Generally, crop Cd concentrations were little affected by the increasing and high applications of ash, except for relatively high Cd concentrations in barley after applying 25 Mg ha{sup −1} straw ash. Contrarily, even modest increases in the TSP application markedly increased Cd uptake in plants. This might be explained by the low Cd solubility in the ash or by the reduced Cd availability due to the liming effect of ash. High concentrations of resin-extractable P (available P) in the ash-amended soil after harvest indicate that the ash may also contribute to P availability for the following crops. In conclusion, the biomass ashes in this study had P availability similar to the TSP fertiliser and did not contaminate the crop with Cd during the first year. - Highlights: • Effects of four biomass ashes vs. a P fertiliser (TSP) on two crops were studied. • Ashes increased crop yields with P availability similar to TSP on P-depleted soil

  4. ARC Code TI: Middleware Using Existing SSH Hosts (Mesh)

    Data.gov (United States)

    National Aeronautics and Space Administration — Mesh is a secure, lightweight grid middleware that is based on the addition of a single sign-on capability to the built-in public key authentication mechanism of SSH...

  5. Towards Adaptable and Adaptive Policy-Free Middleware

    CERN Document Server

    Dearle, Alan; Norcross, Stuart; Macdonald, Angus; Bigwood, Greg

    2010-01-01

    We believe that to fully support adaptive distributed applications, middleware must itself be adaptable, adaptive and policy-free. In this paper we present a new language-independent adaptable and adaptive policy framework suitable for integration in a wide variety of middleware systems. This framework facilitates the construction of adaptive distributed applications. The framework addresses adaptability through its ability to represent a wide range of specific middleware policies. Adaptiveness is supported by a rich contextual model, through which an application programmer may control precisely how policies should be selected for any particular interaction with the middleware. A contextual pattern mechanism facilitates the succinct expression of both coarse- and fine-grain policy contexts. Policies may be specified and altered dynamically, and may themselves take account of dynamic conditions. The framework contains no hard-wired policies; instead, all policies can be configured.

  6. INO340 telescope control system: middleware requirements, design, and evaluation

    Science.gov (United States)

    Shalchian, Hengameh; Ravanmehr, Reza

    2016-07-01

    The INO340 Control System (INOCS) is being designed in terms of a distributed real-time architecture. The real-time (soft and firm) nature of many processes inside INOCS causes the communication paradigm between its different components to be time-critical and sensitive. For this purpose, we have chosen the Data Distribution Service (DDS) standard as the communications middleware which is itself based on the publish-subscribe paradigm. In this paper, we review and compare the main middleware types, and then we illustrate the middleware architecture of INOCS and its specific requirements. Finally, we present the experimental results, performed to evaluate our middleware in order to ensure that it meets our requirements.

  7. Application Requirements for Middleware for Mobile and Pervasive Systems

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak; Raatikainen, Kimmo; Nakajim, Tatsuo

    2002-01-01

    In this paper, we examine the requirements for future middleware to support mobile and pervasive applications and identify key research areas. We illustrate the research areas with requirements identified in two specific research projects concerning pervasive healthcare and home entertainment....

  8. Research of RFID middleware model with CEP based on SOA

    Science.gov (United States)

    Wang, Zhao; Ma, Zhifeng

    2012-01-01

    RFID middleware is regarded as the nerve of RFID systems. Firstly this paper analysis and discuss relatively mature RFID middleware, and propose a RFID middleware which based on service-oriented architecture. Then in this paper we introduce the CEP (complex event processing), and it is a new technology for event and data processing. With the widespread usage of RFID technology, complex event processing becomes a very important part in RFID application. Through introducing its work, we indicate the basis of introducing CEP to RFID middleware. We focus on the complex event processing technology in RFID data processing, and present a based on CEP data processing model, and study cache, Event Filter and Complex Event Builder key technologies. Moreover, a query language for detecting RFID complex events is also introduced.

  9. Development Tools for Context Aware and Secure Pervasive Computing in Embedded Systems (PECES Middleware

    Directory of Open Access Journals (Sweden)

    Ran Zhao

    2013-01-01

    Full Text Available The main objective of the PECES project is the development of system software to enable the communication among heterogeneous devices across multiple smart spaces, breaking the traditional barrier of “smart islands” where only the services offered in a nearby spatial area can be used easily. PECES development tools help the application developer to build and test the PECES middleware based applications. This paper presents a set of tools, namely Peces Project, Peces Device Definition, Peces Ontology Instantiation, Peces Security Configuration, Peces Service Definition, Peces Role Specification Definition,  Peces Hierarchical Role Specification Definition, Peces Event Editor, Peces Event Diagram and Peces Testing which enable application developers to build, model and test the PECES middleware based smart space application using the novel concepts such as role assignment, context ontologies and security.

  10. A middleware-based platform for the integration of bioinformatic services

    Directory of Open Access Journals (Sweden)

    Guzmán Llambías

    2015-08-01

    Full Text Available Performing Bioinformatic´s experiments involve an intensive access to distributed services and information resources through Internet. Although existing tools facilitate the implementation of workflow-oriented applications, they lack of capabilities to integrate services beyond low-scale applications, particularly integrating services with heterogeneous interaction patterns and in a larger scale. This is particularly required to enable a large-scale distributed processing of biological data generated by massive sequencing technologies. On the other hand, such integration mechanisms are provided by middleware products like Enterprise Service Buses (ESB, which enable to integrate distributed systems following a Service Oriented Architecture. This paper proposes an integration platform, based on enterprise middleware, to integrate Bioinformatics services. It presents a multi-level reference architecture and focuses on ESB-based mechanisms to provide asynchronous communications, event-based interactions and data transformation capabilities. The paper presents a formal specification of the platform using the Event-B model.

  11. High plant availability of phosphorus and low availability of cadmium in four biomass combustion ashes

    DEFF Research Database (Denmark)

    Li, Xiaoxi; Rubæk, Gitte Holton; Sørensen, Peter

    2016-01-01

    For biomass combustion to become a sustainable energy production system, it is crucial to minimise landfill of biomass ashes, to recycle the nutrients and to minimise the undesirable impact of hazardous substances in the ash. In order to test the plant availability of phosphorus (P) and cadmium (Cd......) in four biomass ashes, we conducted two pot experiments on a P-depleted soil and one mini-plot field experiment on a soil with adequate P status. Test plants were spring barley and Italian ryegrass. Ash applications were compared to triple superphosphate (TSP) and a control without P application. Both TSP...... ash. Contrarily, even modest increases in the TSP application markedly increased Cd uptake in plants. This might be explained by the low Cd solubility in the ash or by the reduced Cd availability due to the liming effect of ash. High concentrations of resin-extractable P (available P) in the ash...

  12. Middleware Architectures for the Smart Grid: Survey and Challenges in the Foreseeable Future

    Directory of Open Access Journals (Sweden)

    Rubén de Diego

    2013-07-01

    Full Text Available The traditional power grid is just a one-way supplier that gets no feedback data about the energy delivered, what tariffs could be the most suitable ones for customers, the shifting daily needs of electricity in a facility, etc. Therefore, it is only natural that efforts are being invested in improving power grid behavior and turning it into a Smart Grid. However, to this end, several components have to be either upgraded or created from scratch. Among the new components required, middleware appears as a critical one, for it will abstract all the diversity of the used devices for power transmission (smart meters, embedded systems, etc. and will provide the application layer with a homogeneous interface involving power production and consumption management data that were not able to be provided before. Additionally, middleware is expected to guarantee that updates to the current metering infrastructure (changes in service or hardware availability or any added legacy measuring appliance will get acknowledged for any future request. Finally, semantic features are of major importance to tackle scalability and interoperability issues. A survey on the most prominent middleware architectures for Smart Grids is presented in this paper, along with an evaluation of their features and their strong points and weaknesses.

  13. Model and Implementation of Communication Link Management Supporting High Availability

    Institute of Scientific and Technical Information of China (English)

    Luo Juan; Cao Yang; He Zheng; Li Feng

    2004-01-01

    Despite the rapid evolution in all aspects of computer technology, both the computer hardware and software are prone to numerous failure conditions. In this paper, we analyzed the characteristic of a computer system and the methods of constructing a system , proposed a communication link management model supporting high availability for network applications, Which will greatly increase the high availability of network applications. Then we elaborated on heartbeat or service detect, fail-over, service take-over, switchback and error recovery process of the model. In the process of constructing the communication link, we implemented the link management and service take-over with high availability requirement, and discussed the state and the state transition of building the communication link between the hosts, depicted the message transfer and the start of timer. At Last, we applied the designed high availability system to a network billing system, and showed how the system was constructed and implemented, which perfectly satisfied the system requirements.

  14. Modern middleware for the data acquisition of the Cherenkov Telescope Array

    CERN Document Server

    Lyard, Etienne; Kosack, Karl; Jacquemier, Jean; Oya, Igor; Wegner, Peter; Fuessling, Matthias; Wu, Xin

    2015-01-01

    The data acquisition system (DAQ) of the future Cherenkov Telescope Array (CTA) must be ef- ficient, modular and robust to be able to cope with the very large data rate of up to 550 Gbps coming from many telescopes with different characteristics. The use of modern middleware, namely ZeroMQ and Protocol Buffers, can help to achieve these goals while keeping the development effort to a reasonable level. Protocol Buffers are used as an on-line data for- mat, while ZeroMQ is employed to communicate between processes. The DAQ will be controlled and monitored by the Alma Common Software (ACS). Protocol Buffers from Google are a way to define high-level data structures through an in- terface description language (IDL) and a meta-compiler. ZeroMQ is a middleware that augments the capabilities of TCP/IP sockets. It does not implement very high-level features like those found in CORBA for example, but makes use of sockets easier, more robust and almost as effective as raw TCP. The use of these two middlewares enabled u...

  15. RECOM:一个反射中间件%RECOM: A Reflective Middleware

    Institute of Scientific and Technical Information of China (English)

    杨思忠; 骆志刚; 刘锦德

    2001-01-01

    Current middlewares are limited in their flexibility and adaptabiliy in face of changing environment and different user requirements. Applying the reflection technology to the middleware design has become a new research field. In this psper,the processing of middleware and the reflection mechanism are compared,and then the reflecive view of middleware is yielded. Based on this,the idea of employing binding reification reflective model in middleware design is proposed,and the design principles of a reflective middleware prototype named RECOM are deduced. Whereafter,this paper details RECOM's implementation about its binding factories,refletive structure,and configurable reflective layers.

  16. A Data Processing Middleware Based on SOA for the Internet of Things

    Directory of Open Access Journals (Sweden)

    Feng Wang

    2015-01-01

    Full Text Available The Internet of Things (IoT emphasizes on connecting every object around us by leveraging a variety of wireless communication technologies. Heterogeneous data fusion is widely considered to be a promising and urgent challenge in the data processing of the IoT. In this study, we first discuss the development of the concept of the IoT and give a detailed description of the architecture of the IoT. And then we design a middleware platform based on service-oriented architecture (SOA for integration of multisource heterogeneous information. New research angle regarding flexible heterogeneous information fusion architecture for the IoT is the theme of this paper. Experiments using environmental monitoring sensor data derived from indoor environment are performed for system validation. Through the theoretical analysis and experimental verification, the data processing middleware architecture represents better adaptation to multisensor and multistream application scenarios in the IoT, which improves heterogeneous data utilization value. The data processing middleware based on SOA for the IoT establishes a solid foundation of integration and interaction for diverse networks data among heterogeneous systems in the future, which simplifies the complexity of integration process and improves reusability of components in the system.

  17. Distributed Data Service for Data Management in Internet of Things Middleware

    Directory of Open Access Journals (Sweden)

    Ruben Cruz Huacarpuma

    2017-04-01

    Full Text Available The development of the Internet of Things (IoT is closely related to a considerable increase in the number and variety of devices connected to the Internet. Sensors have become a regular component of our environment, as well as smart phones and other devices that continuously collect data about our lives even without our intervention. With such connected devices, a broad range of applications has been developed and deployed, including those dealing with massive volumes of data. In this paper, we introduce a Distributed Data Service (DDS to collect and process data for IoT environments. One central goal of this DDS is to enable multiple and distinct IoT middleware systems to share common data services from a loosely-coupled provider. In this context, we propose a new specification of functionalities for a DDS and the conception of the corresponding techniques for collecting, filtering and storing data conveniently and efficiently in this environment. Another contribution is a data aggregation component that is proposed to support efficient real-time data querying. To validate its data collecting and querying functionalities and performance, the proposed DDS is evaluated in two case studies regarding a simulated smart home system, the first case devoted to evaluating data collection and aggregation when the DDS is interacting with the UIoT middleware, and the second aimed at comparing the DDS data collection with this same functionality implemented within the Kaa middleware.

  18. Phoebus: Network Middleware for Next-Generation Network Computing

    Energy Technology Data Exchange (ETDEWEB)

    Martin Swany

    2012-06-16

    The Phoebus project investigated algorithms, protocols, and middleware infrastructure to improve end-to-end performance in high speed, dynamic networks. The Phoebus system essentially serves as an adaptation point for networks with disparate capabilities or provisioning. This adaptation can take a variety of forms including acting as a provisioning agent across multiple signaling domains, providing transport protocol adaptation points, and mapping between distributed resource reservation paradigms and the optical network control plane. We have successfully developed the system and demonstrated benefits. The Phoebus system was deployed in Internet2 and in ESnet, as well as in GEANT2, RNP in Brazil and over international links to Korea and Japan. Phoebus is a system that implements a new protocol and associated forwarding infrastructure for improving throughput in high-speed dynamic networks. It was developed to serve the needs of large DOE applications on high-performance networks. The idea underlying the Phoebus model is to embed Phoebus Gateways (PGs) in the network as on-ramps to dynamic circuit networks. The gateways act as protocol translators that allow legacy applications to use dedicated paths with high performance.

  19. Middleware Architecture for the Interconnection of Distributed and Parallel Systems

    Directory of Open Access Journals (Sweden)

    Ovidiu Gherman

    2012-01-01

    Full Text Available Grid computing is a fast evolving technology, bringing more computing power to its users. Two main directions are observable: creating dedicated supercomputers for scientific and commercial tasks and creating distributed commodity-based systems. The first ones are usually much expensive, but have the advantage of performance, better control and uniformity in platforms. The second one is more affordable but lacks in flexibility and easy maintenance. The computing necessities that often require supplementary computing power for certain time periods are better satisfied by interconnecting available resources than buying new, expensive ones. But interconnecting platforms – sometimes radically different – can be a difficult task. The proliferation of hybrid parallel computing systems can be even more complicated because it puts in contact systems with various operating flows at the parallelism level. In this frame, the present article proposes a new middleware architecture that can connect multiple parallel or distributed resources, of different types, allowing unitary resource utilization and reservation for the user’s jobs. The new architecture is described functionally and structurally.

  20. Middleware Support for Quality of Context in Pervasive Context-Aware Systems

    NARCIS (Netherlands)

    Sheikh, K.; Wegdam, M.; van Sinderen, Marten J.

    Middleware support for pervasive context-aware systems relieves context-aware applications from dealing with the complexity of context-specific operations such as context acquisition, aggregation, reasoning and distribution. The middleware decouples applications from the underlying heterogeneous

  1. Multi-mode interaction middleware for software services

    Institute of Scientific and Technical Information of China (English)

    TAO XianPing; MA XiaoXing; LU Jian; YU Ping; ZHOU Yu

    2008-01-01

    Due to the independency, variability, and tailorability of software service in the open environment, the research of middleware which supports software services multi-mode interaction is thus of great importance. In this paper, an agent-based multi-mode interaction middleware model and its supporting system for software services were proposed. This model includes an interaction feature decomposition and configuration model to enable interaction programming, an agent-based mid-dleware model, and a programmable coordination media based on reflection technology. The decomposition and configuration model for interaction features can assist programmers in interaction programming by analyzing and synthesizing interaction features. The agent-based middleware model provides a runtime framework for service multi-mode interaction. The programmable coordination media is able to effectively support software service coordination based on multi-mode interaction. To verify feasibility and efficiency of the above method, the de-sign, implementation and performance analysis of Artemis-M3C, a multi-mode in-teraction middleware for software services, were introduced. The result shows that the above method is feasible and that the Artemis-M3C system is practical and ef-fective in multi-mode interaction.

  2. Hardware Middleware for Person Tracking on Embedded Distributed Smart Cameras

    Directory of Open Access Journals (Sweden)

    Ali Akbar Zarezadeh

    2012-01-01

    Full Text Available Tracking individuals is a prominent application in such domains like surveillance or smart environments. This paper provides a development of a multiple camera setup with jointed view that observes moving persons in a site. It focuses on a geometry-based approach to establish correspondence among different views. The expensive computational parts of the tracker are hardware accelerated via a novel system-on-chip (SoC design. In conjunction with this vision application, a hardware object request broker (ORB middleware is presented as the underlying communication system. The hardware ORB provides a hardware/software architecture to achieve real-time intercommunication among multiple smart cameras. Via a probing mechanism, a performance analysis is performed to measure network latencies, that is, time traversing the TCP/IP stack, in both software and hardware ORB approaches on the same smart camera platform. The empirical results show that using the proposed hardware ORB as client and server in separate smart camera nodes will considerably reduce the network latency up to 100 times compared to the software ORB.

  3. Approach to Achieve High Availability in Critical Infrastructure

    Science.gov (United States)

    2015-09-01

    Regardless, current technology includes RFID tags for systems, and tablets can be implemented to assist in real-time updates. Current Wi-Fi technology can...APPROACH TO ACHIEVE HIGH AVAILABILITY IN CRITICAL INFRASTRUCTURE Yew Kee Hoo Senior Engineer, Defence Science and Technology Agency, Singapore B.E...Between Failure MTTF Mean Time to Repair NAVFAC Naval Facilities Engineering Command xvi O&M Operations and Maintenance RFID Radio Frequency

  4. StarBus+: Distributed Object Middleware Practice for Internet Computing

    Institute of Scientific and Technical Information of China (English)

    Huai-Min Wang; Yu-Feng Wang; Yang-Bin Tang

    2005-01-01

    In the past decade, the booming of Internet challenges the middleware in three aspects: quality of service,balance of changes and stabilization, and across-Internet integration. This paper presents our work on distributed object computing middleware technology for these challenges, as well as the research and development on StarBus+, which is a CORBA standard-compliant middleware suite with the features such as object request broker supporting multi-* quality of service, component model, and integration with Web Service. This paper comprehensively presents the design and characteristics of StarBns+, and demonstrates how StarBus+ is enhanced to address the challenges of Internet computing through three case studies: inter-enterprise integration over Internet, application evolution through dynamic reconfiguration,and great massive information system building. The paper also suggests some research directions which are important for Internet computing.

  5. Context Management Middleware in Heterogeneous Mobile Computing Environments

    Science.gov (United States)

    Qureshi, Salim Raza

    2010-11-01

    Mobile computing environments are characterized by heterogeneity—systems consisting of different device types, operating systems, network interfaces, and communication protocols. Such heterogeneity calls for middleware that can adapt to different execution contexts, hide heterogeneity from applications, and transparently and dynamically switch between network and sensor technologies. Additionally, middleware for context-aware systems must keep a context model (a model of their environment), taking into account several aspects of the environment. The more complex and heterogeneous an execution environment is, the more complicated its underlying context model. Moreover, because systems can evolve, context management must also support model evolution without restarting, reconfiguring, or redeploying applications and services. We describe a context management middleware that can efficiently handle context despite the execution environment's heterogeneity and evolution. It uses context meta-information to improve a context-aware system's overall performance.

  6. Mobile Web Middleware of NFC Context-Awareness Applications

    Institute of Scientific and Technical Information of China (English)

    Xiang Liu; Zhi-Guang Qin; Jie Shen

    2013-01-01

    With the development of wireless networks and mobile computing, more advanced applications with context-awareness and adaptability to their changing context are needed. However, building context-aware applications is difficult due to the lack of adequate infrastructure support. In this paper, a web middleware architecture for the development of context-awareness applications using near field communication (NFC) is proposed. Based on it, the efficient support for acquiring, interpreting, and accessing context is provided, and the user’s quality of experience is improved. Moreover, a mobile web middleware for the testing and full realization of NFC context-awareness applications has been developed together with two application examples.

  7. Synergy between Software Product Line and Intelligent Mobile Middleware

    DEFF Research Database (Denmark)

    Zhang, Weishan; Hansen, Klaus Marius

    2007-01-01

    handle ontology evolution and keep all related assets in a consistent state. Ontology evolution is a problem that has not been addressed by current mobile middleware. Another advantage is the ability to configure Jadex BDI agents for different purpose and enhance agent intelligence by adding logic......Current mobile middleware is designed to have a monolithic structure according to a 'one-size-fits-all' paradigm, which lacks the flexibility for optimization, customization and adaptation to different situations. In this paper we investigate the usage of software product line techniques together...

  8. A Framework of Web Data Integrated LBS Middleware

    Institute of Scientific and Technical Information of China (English)

    MENG Xiaofeng; YIN Shaoyi; XIAO Zhen

    2006-01-01

    In this paper, we propose a flexible location-based service (LBS) middleware framework to make the development and deployment of new location based applications much easier. Considering the World Wide Web as a huge data source of location-relative information, we integrate the common used web data extraction techniques into the middleware framework, exposing a unified web data interface for the upper applications to make them more attractive. Besides, the framework also emphasizes some common LBS issues, including positioning, location modeling, location-dependent query processing, privacy and secure management.

  9. Dynamic Reconfiguration of IP Domain Middleware Stacks to Support Multicast Multimedia Distribution in a Heterogeneous Environment

    Directory of Open Access Journals (Sweden)

    Kevin Curran

    2005-01-01

    Full Text Available Seamless connectivity to multiple wireless networks independently of a fixed point is becoming increasingly important for mobile devices however wireless networks differ in bandwidth, size and access costs each requiring protocol functions to enable devices to communicate efficiently. In addition, due to the divergence of users and applications, traditional stacks are frequently enriched with additional functionality such as transport protocol functionality, synchronisation and presentation coding which can lead to a performance bottleneck due to the insufficient processing power and memory of portable devices. We argue that an extensible middleware is needed to cover small resource constrained devices to full-fledged desktop computers thus we investigate dynamic micro-protocols which enable devices to adopt specific protocol stacks at runtime in an attempt to optimise the stack to the functionality that is actually required by the application thus eliminating additional overhead functionality provided by generic stacks. A side effect of this is that it allows devices such as PDAs to offer protocol functions, which would not normally be available due to their memory constraints. Memory constrained devices are catered for through the deployment of a client-proxy overlay network where proxies offload processing. The problem of the ?common denominator bandwidth? is overcome through multicast media groups where clients subscribe to different quality of services in accordance with resource availability and move between groups according to bandwidth availability over time. Our end result is a Java middleware for multimedia streaming to heterogeneous mobile clients, utilising dynamic configuration of protocols with respect to application requirements and available network resources. Performance is increased through application specific tailored protocols and reducing protocol complexity allows stacks to fit inside the limited memory space of current

  10. A High-Availability, Distributed Hardware Control System Using Java

    Science.gov (United States)

    Niessner, Albert F.

    2011-01-01

    Two independent coronagraph experiments that require 24/7 availability with different optical layouts and different motion control requirements are commanded and controlled with the same Java software system executing on many geographically scattered computer systems interconnected via TCP/IP. High availability of a distributed system requires that the computers have a robust communication messaging system making the mix of TCP/IP (a robust transport), and XML (a robust message) a natural choice. XML also adds the configuration flexibility. Java then adds object-oriented paradigms, exception handling, heavily tested libraries, and many third party tools for implementation robustness. The result is a software system that provides users 24/7 access to two diverse experiments with XML files defining the differences

  11. A High-Availability, Distributed Hardware Control System Using Java

    Science.gov (United States)

    Niessner, Albert F.

    2011-01-01

    Two independent coronagraph experiments that require 24/7 availability with different optical layouts and different motion control requirements are commanded and controlled with the same Java software system executing on many geographically scattered computer systems interconnected via TCP/IP. High availability of a distributed system requires that the computers have a robust communication messaging system making the mix of TCP/IP (a robust transport), and XML (a robust message) a natural choice. XML also adds the configuration flexibility. Java then adds object-oriented paradigms, exception handling, heavily tested libraries, and many third party tools for implementation robustness. The result is a software system that provides users 24/7 access to two diverse experiments with XML files defining the differences

  12. Design of a 3-tier smart middleware system for ubiquitous sensor networks

    Institute of Scientific and Technical Information of China (English)

    Taegan Kim; Jaeho Sim; Keewook Rim; Junghyun Lee

    2007-01-01

    As ubiquitous sensor networks (USN) technologies and its middleware are still at its early stages, the system of the USN relies on the middleware and applications. The past sensor networks are assumed to be designed for specific applications, having data communication protocols tightly coupled to applications. To avoid these problems, several kinds of USN middleware have been researched and developed. However, most middleware of USN are still restricted by its own infrastructure so far. This paper proposes appropriate 3 tier Smart Middleware System (3SMS) for USN.

  13. Middleware Management with Oracle Enterprise Manager Grid Control 10g R5 LITE

    CERN Document Server

    Maheshwari, Arvind

    2011-01-01

    Written by senior members of the Oracle team, this book is a hands-on tutorial detailing Oracle Enterprise Manager Grid Control's management of Middleware. The material has been carefully selected from Packt's fuller 350 page "Middleware Management with Oracle Enterprise Manager Grid Control 10g R5". If you are a Middleware or System Administrator or an IT Architect who wants to maximize the system performance of Oracle Fusion Middleware solutions, then this book is for you. You'll also find it helpful if you are a DBA who wants to become a Middleware Administrator. You should have basic knowl

  14. Using Context Awareness for Self Management in Pervasive Service Middleware

    DEFF Research Database (Denmark)

    Zhang, Weishan; Hansen, Klaus Marius

    2011-01-01

    of OWL/SWRL ontologies, called the Self-Management for Pervasive Services (SeMaPS) ontologies. Self-management rules can be developed based on the SeMaPS ontologies to achieve self-management goals. Our approach is demonstrated within the LinkSmart pervasive middleware. Finally, our experiments...

  15. Features Management and Middleware of Hybrid Cloud Infrastructures

    OpenAIRE

    Evgeny Nikulchev; Oleg Lukyanchikov; Evgeniy Pluzhnik; Dmitry Biryukov

    2016-01-01

    The wide spread of cloud computing has identified the need to develop specialized approaches to the design, management and programming for cloud infrastructures. In the article were reviewed the peculiarities of the hybrid cloud and middleware software development, adaptive to implementing the principles of governance and change in the structure of storing data in clouds. The examples and results of experimental research are presented.

  16. Online approach to feature interaction problems in middleware based system

    Institute of Scientific and Technical Information of China (English)

    HUANG Gang; LIU XuanZhe; MEI Hong

    2008-01-01

    As a popular infrastructure for distributed systems running on the Internet, middle-ware has to support much more diverse and complex interactions for coping with the drastically increasing demand on information technology and the extremely open and dynamic nature of the Internet. These supporting mechanisms facilitate the development, deployment, and integration of distributed systems, as well as increase the occasions for distributed systems to interact in an undesired way. The undesired interactions may cause serious problems, such as quality violation, function loss, and even system crash. In this paper, the problem is studied from the perspective of the feature interaction problem (FIP) in telecom, and an online ap-proach to the detection and solution on runtime systems is proposed. Based on a classification of middleware enabled interactions, the existence of FIP in middle-ware based systems is illustrated by four real cases and a conceptual comparison between middleware based systems and telecom systems. After that, runtime soft-ware architecture is employed to facilitate the online detection and solution of FIP. The approach is demonstrated on J2EE (Java 2 Platform Enterprise Edition) and applied to detect and resolve all of the four real cases.

  17. Content Management Middleware for the Support of Distributed Teaching

    Science.gov (United States)

    Tsalapatas, Hariklia; Stav, John B.; Kalantzis, Christos

    2004-01-01

    eCMS is a web-based federated content management system for the support of distributed teaching based on an open, distributed middleware architecture for the publication, discovery, retrieval, and integration of educational material. The infrastructure supports the management of both standalone material and structured courses, as well as the…

  18. The Design and Implementation of Middleware for Application Development within Honeybee Computing Environment

    Directory of Open Access Journals (Sweden)

    Nur Husna Azizul

    2016-12-01

    Full Text Available Computing technology is now moving from ubiquitous computing into advanced ubiquitous computing environment. An advanced ubiquitous environment is an extension of ubiquitous environment that improve connectivity between devices. This computing environment has five major characteristics, namely: large number of heterogeneous devices; new communication technology; mobile ad hoc network (MANET; peer-to-peer communication; and Internet of Things. Honeybee computing is a concept based on advanced ubiquitous computing technology to support Smart City Smart Village (SCSV initiatives, which is a project initiated within Digital Malaysia. This paper describes the design and implementation of a middleware to support application development within Honeybee computing environment.

  19. Mobile Phone Middleware Architecture for Energy and Context Awareness in Location-Based Services

    Directory of Open Access Journals (Sweden)

    Hiram Galeana-Zapién

    2014-12-01

    Full Text Available The disruptive innovation of smartphone technology has enabled the development of mobile sensing applications leveraged on specialized sensors embedded in the device. These novel mobile phone applications rely on advanced sensor information processes, which mainly involve raw data acquisition, feature extraction, data interpretation and transmission. However, the continuous accessing of sensing resources to acquire sensor data in smartphones is still very expensive in terms of energy, particularly due to the periodic use of power-intensive sensors, such as the Global Positioning System (GPS receiver. The key underlying idea to design energy-efficient schemes is to control the duty cycle of the GPS receiver. However, adapting the sensing rate based on dynamic context changes through a flexible middleware has received little attention in the literature. In this paper, we propose a novel modular middleware architecture and runtime environment to directly interface with application programming interfaces (APIs and embedded sensors in order to manage the duty cycle process based on energy and context aspects. The proposed solution has been implemented in the Android software stack. It allows continuous location tracking in a timely manner and in a transparent way to the user. It also enables the deployment of sensing policies to appropriately control the sampling rate based on both energy and perceived context. We validate the proposed solution taking into account a reference location-based service (LBS architecture. A cloud-based storage service along with online mobility analysis tools have been used to store and access sensed data. Experimental measurements demonstrate the feasibility and efficiency of our middleware, in terms of energy and location resolution.

  20. Bio-inspired Autonomic Structures: a middleware for Telecommunications Ecosystems

    Science.gov (United States)

    Manzalini, Antonio; Minerva, Roberto; Moiso, Corrado

    Today, people are making use of several devices for communications, for accessing multi-media content services, for data/information retrieving, for processing, computing, etc.: examples are laptops, PDAs, mobile phones, digital cameras, mp3 players, smart cards and smart appliances. One of the most attracting service scenarios for future Telecommunications and Internet is the one where people will be able to browse any object in the environment they live: communications, sensing and processing of data and services will be highly pervasive. In this vision, people, machines, artifacts and the surrounding space will create a kind of computational environment and, at the same time, the interfaces to the network resources. A challenging technological issue will be interconnection and management of heterogeneous systems and a huge amount of small devices tied together in networks of networks. Moreover, future network and service infrastructures should be able to provide Users and Application Developers (at different levels, e.g., residential Users but also SMEs, LEs, ASPs/Web2.0 Service roviders, ISPs, Content Providers, etc.) with the most appropriate "environment" according to their context and specific needs. Operators must be ready to manage such level of complication enabling their latforms with technological advanced allowing network and services self-supervision and self-adaptation capabilities. Autonomic software solutions, enhanced with innovative bio-inspired mechanisms and algorithms, are promising areas of long term research to face such challenges. This chapter proposes a bio-inspired autonomic middleware capable of leveraging the assets of the underlying network infrastructure whilst, at the same time, supporting the development of future Telecommunications and Internet Ecosystems.

  1. C2M: Configurable Chemical Middleware

    Directory of Open Access Journals (Sweden)

    Peter A. T. M. Geurts

    2006-04-01

    Full Text Available One of the vexing problems that besets concurrent use of multiple, heterogeneous resources is format multiplicity. C2M aims to equip scientists with a wrapper generator on their desktop. The wrapper generator can build wrappers, or converters that can convert data from or into different formats, from a high-level description of the formats. The language in which such a high-level description is expressed is easy enough for scientists to be able to write format descriptions at minimal cost. In C2M, wrappers and documentation for human reading are automatically obtained from the same user-supplied specifications. Initial experiments demonstrate that the idea can, indeed, lead to the advent of usergoverned wrapper generators. Future research will consolidate the code and extend the approach to a realistic variety of formats.

  2. Middleware Solutions for Self-organizing Multi-hop Multi-path Internet Connectivity Based on Bluetooth

    Science.gov (United States)

    Bellavista, Paolo; Giannelli, Carlo

    The availability of heterogeneous wireless interfaces and of growing computing resources on widespread portable devices pushes for enabling innovative deployment scenarios where mobile nodes dynamically self-organize to offer Internet connectivity to their peers via dynamically established multi-hop multi-path opportunities. We claim the suitability of novel, mobility-aware, and application-layer middleware based on lightweight evaluation indicators to support the complexity of that scenario, involving heterogeneous wireless technologies over differentiated and statically unpredictable execution environments. To validate these claims, we have implemented an innovative middleware that manages the durability/throughput-aware formation and selection of different multi-hop paths simultaneously. This paper specifically focuses on how our middleware effectively exploits Bluetooth for multi-hop multi-path networking, by pointing out the crucial role of i) compliance with standard solutions to favor rapid deployment over off-the-shelf equipment and ii) the reduction of the usual overhead associated with some expensive Bluetooth operations, e.g., device inquiry. In particular, the paper shows how it is possible, on the one hand, to extend JSR-82 to portably access monitoring indicators for lightweight mobility/throughput estimations and, on the other hand, to reduce the time needed to update the set of available Bluetooth-based connectivity opportunities via approximated and lightweight forms of discovery.

  3. High Availability Solution: Resource Usage Management in Virtualized Software Aging

    Directory of Open Access Journals (Sweden)

    Aye Myat Myat Paing

    2012-07-01

    Full Text Available As businesses increasingly rely on IT for their mission-critical operations, continuous availability is auniversal concern. Nowadays, virtualized platform has become the popular option to deploy complexenough services. Deployed services are expected to be always, available, but these long running servicesare especially sensitive to suffer from software aging phenomenon. Software aging of virtual machinemonitors (VMMs is becoming critical because performance degradation or crash failure of a VMM affectsall virtual machines (VMs on it. To counteract this issue, we deploy software rejuvenation methodology.To eliminate the service outage during software rejuvenation process, we combine the rejuvenation withlive migration technology. Live VM migration enables a running VM on a host serer to move onto the otherhost server with very small interruption of the execution. Live VM migration depends on VMs placementand efficient resource available is required. The idea behind our paper is two-fold. First, we present theoptimization of the resource usage as accepting as many services as in virtualized environment whichsupport of VM live migration. Second, to demonstrate how much it can improve system availability, thestochastic Petri nets model a virtualized server system in case of using time based software rejuvenation forVMM is presented. Finally, we perform the numerical analysis to evaluate the model.

  4. Sensor Network Middleware for Cyber-Physical Systems: Opportunities and Challenges

    Science.gov (United States)

    Singh, G.

    2015-12-01

    Wireless Sensor Network middleware typically provides abstractions for common tasks such as atomicity, synchronization and communication with the intention of isolating the developers of distributed applications from lower-level details of the underlying platforms. Developing middleware to meet the performance constraints of applications is an important challenge. Although one would like to develop generic middleware services which can be used in a variety of different applications, efficiency considerations often force developers to design middleware and algorithms customized to specific operational contexts. This presentation will discuss techniques to design middleware that is customizable to suit the performance needs of specific applications. We also discuss the challenges poised in designing middleware for pervasive sensor networks and cyber-physical systems with specific focus on environmental monitoring.

  5. The Importance, Design and Implementation of a Middleware for Networked Control Systems

    CERN Document Server

    Kim, Kyoung-Dae

    2009-01-01

    Due to the advancement of computing and communication technology, networked control systems may soon become prevalent in many control applications. While the capability of employing the communication network in the control loop certainly provides many benefits, it also raises several challenges which need to be overcome to utilize the benefits. In this chapter, we focus on one major challenge: a middleware framework that enables a networked control system to be implemented. Indeed our thesis is that a middleware for networked control sys important for the future of networked control systems. We discuss the fundamental issues which need to be considered in the design and development of an appropriate middleware for networked control systems. We describe \\emph{Etherware}, a middleware for networked control system which has been developed at the University of Illinois, as an example of such a middleware framework, to illustrate how these issues can be addressed in the design of a middleware. Using a networked in...

  6. Condom availability in high risk places and condom use

    DEFF Research Database (Denmark)

    Sandøy, Ingvild Fossgard; Blystad, Astrid; Shayo, Elizabeth H.;

    2012-01-01

    and one in Zambia. The study was based on a triangulation of data collection methods in the three study districts: surveys in venues where people meet new sexual partners, population-based surveys and focus group discussions. The data was collected within an overall study on priority setting in health......Background A number of studies from countries with severe HIV epidemics have found gaps in condom availability, even in places where there is a substantial potential for HIV transmission. Although reported condom use has increased in many African countries, there are often big differences...... by socioeconomic background. The aim of this study was to assess equity aspects of condom availability and uptake in three African districts to evaluate whether condom programmes are given sufficient priority. Methods Data on condom availability and use was examined in one district in Kenya, one in Tanzania...

  7. A Sensor Middleware for integration of heterogeneous medical devices.

    Science.gov (United States)

    Brito, M; Vale, L; Carvalho, P; Henriques, J

    2010-01-01

    In this paper, the architecture of a modular, service-oriented, Sensor Middleware for data acquisition and processing is presented. The described solution was developed with the purpose of solving two increasingly relevant problems in the context of modern pHealth systems: i) to aggregate a number of heterogeneous, off-the-shelf, devices from which clinical measurements can be acquired and ii) to provide access and integration with an 802.15.4 network of wearable sensors. The modular nature of the Middleware provides the means to easily integrate pre-processing algorithms into processing pipelines, as well as new drivers for adding support for new sensor devices or communication technologies. Tests performed with both real and artificially generated data streams show that the presented solution is suitable for use both in a Windows PC or a Windows Mobile PDA with minimal overhead.

  8. Managing RFID Sensors Networks with a General Purpose RFID Middleware

    Science.gov (United States)

    Abad, Ismael; Cerrada, Carlos; Cerrada, Jose A.; Heradio, Rubén; Valero, Enrique

    2012-01-01

    RFID middleware is anticipated to one of the main research areas in the field of RFID applications in the near future. The Data EPC Acquisition System (DEPCAS) is an original proposal designed by our group to transfer and apply fundamental ideas from System and Data Acquisition (SCADA) systems into the areas of RFID acquisition, processing and distribution systems. In this paper we focus on how to organize and manage generic RFID sensors (edge readers, readers, PLCs, etc…) inside the DEPCAS middleware. We denote by RFID Sensors Networks Management (RSNM) this part of DEPCAS, which is built on top of two new concepts introduced and developed in this work: MARC (Minimum Access Reader Command) and RRTL (RFID Reader Topology Language). MARC is an abstraction layer used to hide heterogeneous devices inside a homogeneous acquisition network. RRTL is a language to define RFID Reader networks and to describe the relationship between them (concentrator, peer to peer, master/submaster). PMID:22969370

  9. Semantic Middleware for Designing Collaborative Applications in Mobile Environment

    OpenAIRE

    Benmouffok, Lamia; Busca, Jean-Michel; Shapiro, Marc

    2007-01-01

    International audience; The Telex middleware facilitates the design of collaborative applications in a mobile environment. It provides optimistic replication, tentative execution and disconnected work. It solves conflicts based on semantic information provided by applications. We study in particular a Shared Calendar (SC) application, whereby mobile users can create and manage meetings in a collection of shared calendars. The application provides Telex with objects representing (1) meeting cr...

  10. Ice Middleware in the New Solar Telescope's Telescope Control System

    Science.gov (United States)

    Shumko, S.

    2009-09-01

    The Big Bear Solar Observatory (BBSO) is now in the process of assembling and aligning its 1.6 m New Solar Telescope (NST). There are many challenges controlling NST and one of them is establishing reliable and robust communications between different parts of the Telescope Control System (TCS). For our TCS we selected Ice (Internet communication engine) from ZeroC, Inc. In this paper we discuss advantages of the Ice middleware, details of implementation and problems we face implementing it.

  11. The Multicore-Aware Data Transfer Middleware Project

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Wenji [Fermilab; Zhang, L. [Fermilab; DeMar, P. [Fermilab; Li, Tan [Stony Brook U.; Ren, Y. [Stony Brook U.; Jin, S. [stony Brook U.; Yu, D. [Brookhaven

    2014-10-30

    Existing data movement tools are still bound by major inefficiencies when running on multicore systems. To address these inefficiencies and limitations, DOE’s Advanced Scientific Computing Research (ASCR) office has funded Fermilab and Brookhaven National Laboratory to collaboratively work on the Multicore-Aware Data Transfer Middleware (MDTM) project. MDTM aims to accelerate data movement toolkits on multicore systems. A prototype version of MDTM is currently undergoing evaluation and enhancement.

  12. A middleware for building contract-aware agent-based services

    OpenAIRE

    Confalonieri, Roberto; Álvarez Napagao, Sergio; Panagiotidi, Sofia; Vázquez Salceda, Javier; Willmott, Steven Nicolás

    2008-01-01

    This paper presents a middleware to help designers in the implementation of contract-aware agent-based services. The middleware provides several components, including a contract manager, a communication manager and a workflow manager, which combine to allow agents to manage contracts and the actions associated with them. The middleware is built as part of a Web service implementation of the ISTCONTRACT framework. An electronic commerce example is used to illustrate how the components of...

  13. Middleware Design for Swarm-Driving Robots Accompanying Humans.

    Science.gov (United States)

    Kim, Min Su; Kim, Sang Hyuck; Kang, Soon Ju

    2017-02-17

    Research on robots that accompany humans is being continuously studied. The Pet-Bot provides walking-assistance and object-carrying services without any specific controls through interaction between the robot and the human in real time. However, with Pet-Bot, there is a limit to the number of robots a user can use. If this limit is overcome, the Pet-Bot can provide services in more areas. Therefore, in this study, we propose a swarm-driving middleware design adopting the concept of a swarm, which provides effective parallel movement to allow multiple human-accompanying robots to accomplish a common purpose. The functions of middleware divide into three parts: a sequence manager for swarm process, a messaging manager, and a relative-location identification manager. This middleware processes the sequence of swarm-process of robots in the swarm through message exchanging using radio frequency (RF) communication of an IEEE 802.15.4 MAC protocol and manages an infrared (IR) communication module identifying relative location with IR signal strength. The swarm in this study is composed of the master interacting with the user and the slaves having no interaction with the user. This composition is intended to control the overall swarm in synchronization with the user activity, which is difficult to predict. We evaluate the accuracy of the relative-location estimation using IR communication, the response time of the slaves to a change in user activity, and the time to organize a network according to the number of slaves.

  14. PAQ: Persistent Adaptive Query Middleware for Dynamic Environments

    Science.gov (United States)

    Rajamani, Vasanth; Julien, Christine; Payton, Jamie; Roman, Gruia-Catalin

    Pervasive computing applications often entail continuous monitoring tasks, issuing persistent queries that return continuously updated views of the operational environment. We present PAQ, a middleware that supports applications' needs by approximating a persistent query as a sequence of one-time queries. PAQ introduces an integration strategy abstraction that allows composition of one-time query responses into streams representing sophisticated spatio-temporal phenomena of interest. A distinguishing feature of our middleware is the realization that the suitability of a persistent query's result is a function of the application's tolerance for accuracy weighed against the associated overhead costs. In PAQ, programmers can specify an inquiry strategy that dictates how information is gathered. Since network dynamics impact the suitability of a particular inquiry strategy, PAQ associates an introspection strategy with a persistent query, that evaluates the quality of the query's results. The result of introspection can trigger application-defined adaptation strategies that alter the nature of the query. PAQ's simple API makes developing adaptive querying systems easily realizable. We present the key abstractions, describe their implementations, and demonstrate the middleware's usefulness through application examples and evaluation.

  15. Participatory development of a middleware for AAL solutions: requirements and approach – the case of SOPRANO

    Directory of Open Access Journals (Sweden)

    Schmidt, Andreas

    2008-10-01

    Full Text Available This paper describes the main features of a middleware for Ambient Assisted Living (AAL applications, exemplified along the SOPRANO research project. The contribution outlines main requirements towards the technical system and the elicitation methodology. The presented middleware allows for personalisation and flexible, extendible configuration of AAL solutions with low effort. Concerning the technical concept, the design approach as well as components, qualities and functionality of the AAL platform are depicted. Furthermore the methodology of requirements elicitation is discussed. It is explained how SOPRANO met the problem to elicit socio-technical system requirements in a user-centred manner, although the addressed target group is not expected to be able to express precise guidelines. SOPRANO („Service oriented programmable smart environments for older Europeans“, http://www.soprano-ip.org/ is a research project funded by the European Commission, which aims at the provision of a technical (AAL infrastructure to help elderly people to keep their independence and to stay in their familiar environment as long as possible. SOPRANO focuses on in-house support and emphasises well-being. It is a main goal to secure situation-aware assistance and help not only in case of emergencies but particularly as well in activities of daily living.

  16. Development of Middleware Applied to Microgrids by Means of an Open Source Enterprise Service Bus

    Directory of Open Access Journals (Sweden)

    Jesús Rodríguez-Molina

    2017-02-01

    Full Text Available The success of the smart grid relies heavily on the integration of Distributed Energy Resources (DERs and interoperability among the hardware elements that are present as part of either the smart grid itself or in a smaller size deployment, such as a microgrid. Therefore, establishing an accurate design for software architectures that guarantee interoperability and are able to abstract hardware heterogeneity in this application domain, along with a clearly defined procedure on how to implement and test a solution like this, becomes a desirable objective. This paper describes the requirements needed to design a secure, decentralized and semantic middleware architecture for microgrids and the procedures used to develop it, so that the mandatory software components that have to be encased by the solution, as well as the steps that should be followed to make it happen, become clear for any designer, software architect or programmer that has to tackle similar challenges. In order to demonstrate the usability of the ideas put forward here, two successful pilots where middleware solutions were created according to these principles have been described.

  17. Semantic Agent-Based Service Middleware and Simulation for Smart Cities

    Directory of Open Access Journals (Sweden)

    Ming Liu

    2016-12-01

    Full Text Available With the development of Machine-to-Machine (M2M technology, a variety of embedded and mobile devices is integrated to interact via the platform of the Internet of Things, especially in the domain of smart cities. One of the primary challenges is that selecting the appropriate services or service combination for upper layer applications is hard, which is due to the absence of a unified semantical service description pattern, as well as the service selection mechanism. In this paper, we define a semantic service representation model from four key properties: Capability (C, Deployment (D, Resource (R and IOData (IO. Based on this model, an agent-based middleware is built to support semantic service enablement. In this middleware, we present an efficient semantic service discovery and matching approach for a service combination process, which calculates the semantic similarity between services, and a heuristic algorithm to search the service candidates for a specific service request. Based on this design, we propose a simulation of virtual urban fire fighting, and the experimental results manifest the feasibility and efficiency of our design.

  18. Architecture & Design of Affordable and Highly Available Enterprise Cloud Service

    Directory of Open Access Journals (Sweden)

    Rabi Prasad Padhy

    2013-01-01

    Full Text Available Cloud computing is a way to increase capacity or add capabilities on the fly without investing in additional infrastructure, licensing additional software or training new personnel. Enterprises must embrace this bleeding edge real-time business model in order to compete in the current marketplace. Deployment of enterprise applications in public cloud can reduce investment on IT infrastructure both in terms of hardware and software, whenever new services are to be provisioned. Furthermore, cloud services are quite attractive to business because of its dynamic scalability, privacy, performance and ability to handle heterogeneous environments. Instead of spending a lot of time in figuring out server setup and working on routers, it is judicious to subscribe cloud based 24/7 support and affordable services. It’s an extremely important consideration to subscribe to at least two cloud vendors for smooth running of applications and ensure application availability by switching from one provider to another with minimal management effort. In this article we have proposed an architecture and design of a cost affordable online enterprise cloud application that subscribes to two public cloud vendors with respect to cost and availability parameters. We also present the reasons for the current trend of enterprises moving towards 24/7 online business cloud services.

  19. Does High Educational Attainment Limit the Availability of Romantic Partners?

    Science.gov (United States)

    Burt, Isaac; Lewis, Sally V.; Beverly, Monifa G.; Patel, Samir H.

    2010-01-01

    Research indicates that highly educated individuals endure hardships in finding suitable romantic partners. Romantic hardships affect social and emotional adjustment levels, leading to low self-efficacy in relationship decision making. To address the need for research pertaining to this topic, the authors explored the experiences of eight…

  20. Condom availability in high risk places and condom use

    DEFF Research Database (Denmark)

    Sandøy, Ingvild Fossgard; Blystad, Astrid; Shayo, Elizabeth H.

    2012-01-01

    study findings indicate that substantial further efforts should be made to secure that condoms are easily accessible in places where sexual relationships are initiated. Although condom distribution in drinking places has been pinpointed in the HIV/AIDS prevention strategies of all the three countries......Background A number of studies from countries with severe HIV epidemics have found gaps in condom availability, even in places where there is a substantial potential for HIV transmission. Although reported condom use has increased in many African countries, there are often big differences...... and one in Zambia. The study was based on a triangulation of data collection methods in the three study districts: surveys in venues where people meet new sexual partners, population-based surveys and focus group discussions. The data was collected within an overall study on priority setting in health...

  1. Ethnographic studies as a requirement gathering process for the design of context aware middleware

    DEFF Research Database (Denmark)

    Kjær, Kristian Ellebæk

    2007-01-01

    As a preparation for building service oriented, context aware middleware for agriculture, we have employed ethnographic field studies as a mean in the requirements gathering process.......As a preparation for building service oriented, context aware middleware for agriculture, we have employed ethnographic field studies as a mean in the requirements gathering process....

  2. Towards Self-managed Pervasive Middleware using OWL/SWRL ontologies

    DEFF Research Database (Denmark)

    Zhang, Weishan; Hansen, Klaus Marius

    2008-01-01

    Self-management for pervasive middleware is important to realize the Ambient Intelligence vision. In this paper, we present an OWL/SWRL context ontologies based self-management approach for pervasive middleware where OWL ontology is used as means for context modeling. The context ontologies are i...

  3. Middleware Design for Swarm-Driving Robots Accompanying Humans

    Science.gov (United States)

    Kim, Min Su; Kim, Sang Hyuck; Kang, Soon Ju

    2017-01-01

    Research on robots that accompany humans is being continuously studied. The Pet-Bot provides walking-assistance and object-carrying services without any specific controls through interaction between the robot and the human in real time. However, with Pet-Bot, there is a limit to the number of robots a user can use. If this limit is overcome, the Pet-Bot can provide services in more areas. Therefore, in this study, we propose a swarm-driving middleware design adopting the concept of a swarm, which provides effective parallel movement to allow multiple human-accompanying robots to accomplish a common purpose. The functions of middleware divide into three parts: a sequence manager for swarm process, a messaging manager, and a relative-location identification manager. This middleware processes the sequence of swarm-process of robots in the swarm through message exchanging using radio frequency (RF) communication of an IEEE 802.15.4 MAC protocol and manages an infrared (IR) communication module identifying relative location with IR signal strength. The swarm in this study is composed of the master interacting with the user and the slaves having no interaction with the user. This composition is intended to control the overall swarm in synchronization with the user activity, which is difficult to predict. We evaluate the accuracy of the relative-location estimation using IR communication, the response time of the slaves to a change in user activity, and the time to organize a network according to the number of slaves. PMID:28218650

  4. The role of scientific middleware in the future of HEP computing

    CERN Document Server

    CERN. Geneva

    2004-01-01

    In the 18 months since the CHEP03 meeting in San Diego, the HEP community deployed the current generation of grid technologies in a veracity of settings. Legacy software as well as recently developed applications was interfaced with middleware tools to deliver end-to-end capabilities to HEP experiments in different stages of their life cycles. In a series of data challenges, reprocessing efforts and data distribution activities the community demonstrated the benefits distributed computing can offer and the power a range of middleware tools can deliver. After running millions of jobs, moving tera-bytes of data, creating millions of files and resolving hundreds of bug reports, the community also exposed the limitations of these middleware tools. As we move to the next level of challenges, requirements and expectations, we must also examine the methods and procedures we employ to develop, implement and maintain our common suite of middleware tools. The talk will focus on the role common middleware ...

  5. Executable Design Models for a Pervasive Healthcare Middleware System

    DEFF Research Database (Denmark)

    Jørgensen, Jens Bæk; Christensen, Søren

    2002-01-01

     UML is applied in the design of a pervasive healthcare middleware system for the hospitals in Aarhus County, Denmark. It works well for the modelling of static aspects of the system, but with respect to describing the behaviour, UML is not sufficient. This paper explains why and, as a remedy......, suggests to supplement the UML models with behaviour descriptions in the modelling language Coloured Petri Nets, CPN. CPN models are executable and fine-grained, and a combined use of UML and CPN thus supports design-time investigation of the detailed behaviour of system components. In this way...

  6. URECA: Efficient Resource Location Middleware for Ubiquitous Environment

    Institute of Scientific and Technical Information of China (English)

    Donggeon Noh; Heonshik Shin

    2008-01-01

    We describe an effective resource location framework for ubiquitous computing environments populated by a diverse set of networks, devices, services and computational entities. Our framework provides context adaptation with the aid of a middleware service to improve the quality of resource location. A resource location protocol suitable to each type of network locates resource effectively by means of dynamic reconfiguration to the current context. Our framework is also refined by support for interoperability between different types of resource location protocols occurring across a hybrid ubiquitous network. These characteristics also reduce the control overhead for resource location, saving resource, decreasing latency and permitting a considerable degree of scalability.

  7. Research of the QoC based Middleware for the Service Selection in Pervasive Environment

    Directory of Open Access Journals (Sweden)

    Di Zheng

    2011-02-01

    Full Text Available With the rapid development of information technology, it is inevitable for the distributed mobile computing will evolve to the pervasive computing gradually and whose final goal is fusing the information space composed of computers with the physical space in which the people are working and living in. Furthermore, with the development of SOA, more and more pervasive applications have been composed of different kinds of services. So how to choose a suitable service from all the useable services is the most important step for pervasive computing. Compare to the traditional service selection we must take more care of the context as well as the quality of them in pervasive environment. However, most of existing researches pay no attention to QoC(Quality of Service which may lead to unreliable selections. Therefore we proposed a middleware based service selection scheme to support QoC-aware service selection efficiently.

  8. Middleware-based Security for Hyperconnected Applications in Future In-Car Networks

    Directory of Open Access Journals (Sweden)

    Alexandre Bouard

    2013-12-01

    Full Text Available Today’s cars take advantage of powerful electronic platforms and provide more and more sophisticated connected services. More than just ensuring the role of a safe transportation mean, they process private information, industrial secrets, communicate with our smartphones, Internet and will soon host thirdparty applications. Their pervasive computerization makes them vulnerable to common security attacks, against which automotive technologies cannot protect. The transition toward Ethernet/IP-based on-board communication could be a first step to respond to these security and privacy issues. In this paper, we present a security framework leveraging local and distributed information flow techniques in order to secure the on-board network against internal and external untrusted components. We describe the implementation and integration of such a framework within an IP-based automotive middleware and provide its evaluation.

  9. Running CMS remote analysis builder jobs on advanced resource connector middleware

    Science.gov (United States)

    Edelmann, E.; Happonen, K.; Koivumäki, J.; Lindén, T.; Välimaa, J.

    2011-12-01

    CMS user analysis jobs are distributed over the grid with the CMS Remote Analysis Builder application (CRAB). According to the CMS computing model the applications should run transparently on the different grid flavours in use. In CRAB this is handled with different plugins that are able to submit to different grids. Recently a CRAB plugin for submitting to the Advanced Resource Connector (ARC) middleware has been developed. The CRAB ARC plugin enables simple and fast job submission with full job status information available. CRAB can be used with a server which manages and monitors the grid jobs on behalf of the user. In the presentation we will report on the CRAB ARC plugin and on the status of integrating it with the CRAB server and compare this with using the gLite ARC interoperability method for job submission.

  10. Skinware 2.0: A real-time middleware for robot skin

    Directory of Open Access Journals (Sweden)

    S. Youssefi

    2015-12-01

    Full Text Available Robot skins have emerged recently as products of research from various institutes worldwide. Each robot skin is designed with different applications in mind. As a result, they differ in many aspects from transduction technology and structure to communication protocols and timing requirements. These differences create a barrier for researchers interested in developing tactile processing algorithms for robots using the sense of touch; supporting multiple robot skin technologies is non-trivial and committing to a single technology is not as useful, especially as the field is still in its infancy. The Skinware middleware has been created to mitigate these issues by providing abstractions and real-time acquisition mechanisms. This article describes the second revision of Skinware, discussing the differences with respect to the first version.

  11. Scaling Up Data-Centric Middleware on a Cluster Computer

    Energy Technology Data Exchange (ETDEWEB)

    Liu, D T; Franklin, M J; Garlick, J; Abdulla, G M

    2005-04-29

    Data-centric workflow middleware systems are workflow systems that treat data as first class objects alongside programs. These systems improve the usability, responsiveness and efficiency of workflow execution over cluster (and grid) computers. In this work, we explore the scalability of one such system, GridDB, on cluster computers. We measure the performance and scalability of GridDB in executing data-intensive image processing workflows from the SuperMACHO astrophysics survey on a large cluster computer. Our first experimental study concerns the scale-up of GridDB. We make a rather surprising finding, that while the middleware system issues many queries and transactions to a DBMS, file system operations present the first-tier bottleneck. We circumvent this bottleneck and increase the scalability of GridDB by more than 2-fold on our image processing application (up to 128 nodes). In a second study, we demonstrate the sensitivity of GridDB performance (and therefore application performance) to characteristics of the workflows being executed. To manage these sensitivities, we provide guidelines for trading off the costs and benefits of GridDB at a fine-grain.

  12. Software component composition based on ADL and Middleware

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    How to compose prefabricated components is a key issue in component-based reuse. Research on Software Architecture (SA) and Component-based Software Development (CBSD) provides two hopeful solutions from different perspectives. SA provides a top-down approach to realizing component-based reuse. However, it pays insufficient attention to the refinement and implementation of the architectural descriptions, and does not provide the necessary capability to automate the transformation or composition to form a final executable application. CBSD provides a bottom-up way by using existing middleware infrastructures. However, these technologies do not take into account the systematic methodology that can guide the CBSD process, especially the component composition at higher abstract levels. We argue that it is a natural solution to combine these two approaches.   In this paper, an architecture-based component composition approach is presented. In this way, SA description, using mapping rules and mini-tools to narrow the gap between design and implementation, is used as the blueprint and middleware technology as the runtime scaffold for component composition. Our approach presents an ADL, which supports user-defined connectors and has an extensible framework, to specify software architectures. To map a SA description into implementation, it is necessary to map it first to an OO design model described in UML, then to the final implementation. The architectural description can be mapped into source code or executable code by using some ORB conforming to CORBA standard. Also a toolkit is provided to support this approach efficiently.

  13. Grid Interoperation with ARC Middleware for the CMS Experiment

    CERN Document Server

    Edelmann, Erik; Frey, Jaime; Gronager, Michael; Happonen, Kalle; Johansson, Daniel; Kleist, Josva; Klem, Jukka; Koivumaki, Jesper; Linden, Tomas; Pirinen, Antti; Qing, Di

    2010-01-01

    The Compact Muon Solenoid (CMS) is one of the general purpose experiments at the CERN Large Hadron Collider (LHC). CMS computing relies on different grid infrastructures to provide computational and storage resources. The major grid middleware stacks used for CMS computing are gLite, Open Science Grid (OSG) and ARC (Advanced Resource Connector). Helsinki Institute of Physics (HIP) hosts one of the Tier-2 centers for CMS computing. CMS Tier-2 centers operate software systems for data transfers (PhEDEx), Monte Carlo production (ProdAgent) and data analysis (CRAB). In order to provide the Tier-2 services for CMS, HIP uses tools and components from both ARC and gLite grid middleware stacks. Interoperation between grid systems is a challenging problem and HIP uses two different solutions to provide the needed services. The first solution is based on gLite-ARC grid level interoperability. This allows to use ARC resources in CMS without modifying the CMS application software. The second solution is based on developi...

  14. Grid Interoperation with ARC middleware for the CMS experiment

    Energy Technology Data Exchange (ETDEWEB)

    Edelmann, Erik; Groenager, Michael; Johansson, Daniel; Kleist, Josva [Nordic DataGrid Facility, Kastruplundgade 22, 1., DK-2770 Kastrup (Denmark); Field, Laurence; Qing, Di [CERN, CH-1211 Geneve 23 (Switzerland); Frey, Jaime [University of Wisconsin-Madison, 1210 W. Dayton St., Madison, WI (United States); Happonen, Kalle; Klem, Jukka; Koivumaeki, Jesper; Linden, Tomas; Pirinen, Antti, E-mail: Jukka.Klem@cern.c [Helsinki Institute of Physics, PO Box 64, FIN-00014 University of Helsinki (Finland)

    2010-04-01

    The Compact Muon Solenoid (CMS) is one of the general purpose experiments at the CERN Large Hadron Collider (LHC). CMS computing relies on different grid infrastructures to provide computational and storage resources. The major grid middleware stacks used for CMS computing are gLite, Open Science Grid (OSG) and ARC (Advanced Resource Connector). Helsinki Institute of Physics (HIP) hosts one of the Tier-2 centers for CMS computing. CMS Tier-2 centers operate software systems for data transfers (PhEDEx), Monte Carlo production (ProdAgent) and data analysis (CRAB). In order to provide the Tier-2 services for CMS, HIP uses tools and components from both ARC and gLite grid middleware stacks. Interoperation between grid systems is a challenging problem and HIP uses two different solutions to provide the needed services. The first solution is based on gLite-ARC grid level interoperability. This allows to use ARC resources in CMS without modifying the CMS application software. The second solution is based on developing specific ARC plugins in CMS software.

  15. The new inter process communication middle-ware for the ATLAS Trigger and Data Acquisition system

    CERN Document Server

    Kolos, Serguei; The ATLAS collaboration

    2016-01-01

    The ATLAS Trigger & Data Acquisition (TDAQ) project was started almost twenty years ago with the aim of providing scalable distributed data collection system for the experiment. While the software dealing with physics data flow was implemented by directly using the low-level communication protocols, like TCP and UDP, the control and monitoring infrastructure services for the TDAQ system were implemented on top of the CORBA communication middle-ware. CORBA provides a high-level object oriented abstraction for the inter process communication, hiding communication complexity from the developers. This approach speeds up and simplifies development of communication services but incurs some extra cost in terms of performance and resources overhead. Our experience of using CORBA for control and monitoring data exchange in the distributed TDAQ system was very successful, mostly due to the outstanding quality of the CORBA brokers, which have been used in the project: omniORB for C++ and JacORB for Java. However, du...

  16. The new inter process communication middle-ware for the ATLAS Trigger and Data Acquisition system

    CERN Document Server

    Kolos, Serguei; The ATLAS collaboration

    2016-01-01

    The ATLAS Trigger & Data Acquisition (TDAQ) project was started almost twenty years ago with the aim of providing scalable distributed data collection system for the experiment. While the software dealing with physics data flow was implemented by directly using the low-level communication protocols, like TCP and UDP, the control and monitoring infrastructure services for the TDAQ system were implemented on top of the CORBA communication middle-ware. CORBA provides a high-level object oriented abstraction for the inter process communication, hiding communication complexity from the developers. This approach speeds up and simplifies development of communication services but incurs some extra cost in terms of performance and resources overhead. Our experience of using CORBA for control and monitoring data exchange in the distributed TDAQ system was very successful, mostly due to the outstanding quality of the CORBA brokers, which have been used in the project: omniORB for C++ and JacORB for Java. However, du...

  17. Study on the context-aware middleware for ubiquitous greenhouses using wireless sensor networks.

    Science.gov (United States)

    Hwang, Jeonghwang; Yoe, Hyun

    2011-01-01

    Wireless Sensor Network (WSN) technology is one of the important technologies to implement the ubiquitous society, and it could increase productivity of agricultural and livestock products, and secure transparency of distribution channels if such a WSN technology were successfully applied to the agricultural sector. Middleware, which can connect WSN hardware, applications, and enterprise systems, is required to construct ubiquitous agriculture environment combining WSN technology with agricultural sector applications, but there have been insufficient studies in the field of WSN middleware in the agricultural environment, compared to other industries. This paper proposes a context-aware middleware to efficiently process data collected from ubiquitous greenhouses by applying WSN technology and used to implement combined services through organic connectivity of data. The proposed middleware abstracts heterogeneous sensor nodes to integrate different forms of data, and provides intelligent context-aware, event service, and filtering functions to maximize operability and scalability of the middleware. To evaluate the performance of the middleware, an integrated management system for ubiquitous greenhouses was implemented by applying the proposed middleware to an existing greenhouse, and it was tested by measuring the level of load through CPU usage and the response time for users' requests when the system is working.

  18. Design of a Mobile Agent-Based Adaptive Communication Middleware for Federations of Critical Infrastructure Simulations

    Science.gov (United States)

    Görbil, Gökçe; Gelenbe, Erol

    The simulation of critical infrastructures (CI) can involve the use of diverse domain specific simulators that run on geographically distant sites. These diverse simulators must then be coordinated to run concurrently in order to evaluate the performance of critical infrastructures which influence each other, especially in emergency or resource-critical situations. We therefore describe the design of an adaptive communication middleware that provides reliable and real-time one-to-one and group communications for federations of CI simulators over a wide-area network (WAN). The proposed middleware is composed of mobile agent-based peer-to-peer (P2P) overlays, called virtual networks (VNets), to enable resilient, adaptive and real-time communications over unreliable and dynamic physical networks (PNets). The autonomous software agents comprising the communication middleware monitor their performance and the underlying PNet, and dynamically adapt the P2P overlay and migrate over the PNet in order to optimize communications according to the requirements of the federation and the current conditions of the PNet. Reliable communications is provided via redundancy within the communication middleware and intelligent migration of agents over the PNet. The proposed middleware integrates security methods in order to protect the communication infrastructure against attacks and provide privacy and anonymity to the participants of the federation. Experiments with an initial version of the communication middleware over a real-life networking testbed show that promising improvements can be obtained for unicast and group communications via the agent migration capability of our middleware.

  19. E-CITY KNOWWARE: KNOWLEDGE MIDDLEWARE FOR COORDINATED MANAGEMENT OF SUSTAINABLE CITIES

    Directory of Open Access Journals (Sweden)

    Tamer E. El-Diraby

    2009-12-01

    Full Text Available The realization of e-city is a necessary component for achieving the green city. This paper outlines a vision for an e-city platform that is based on knowledge brokerage in the green city. The proposed platform will be a venue for creating dynamic virtual organizations to harness collective intelligence of knowledge hubs to analyze and manage sustainability knowledge in urban areas. Knowledge assets of participating organizations will be presented in three dimensions: process structures, human profile and software systems. These three facets of knowledge will be accessible and viewable through a self-describing mechanism. Cities can post their geospatial and real-time data on the net. Relevant environmental and energy-use data will be extracted using topic maps and data extraction services. Local decision makers can synchronize work processes (from participating hubs to create an integrated workflow for a new ad hoc virtual organization to collaboratively analyze the multifaceted nature of sustainable decision making. An e-city platform is envisioned in this paper that will be realized through intelligent, agent-like, domain-specific middleware (KnowWare. Through triangulation between people, software and processes, these KnowWare will discover, negotiate, integrate, reason and communicate knowledge (related to energy and environment from across organizations to the right person at the right time. KnowWare is fundamentally, a portal of social semantic services that resides on a cloud computing infrastructure. Knowware exploits thee main tools: 1 existing ontologies to represent knowledge in a semantic manner, 2 topic maps to profile sources of knowledge and match these to the complex needs of sustainability analysis, 3 domain-specific middleware for knowledge integration and reasoning.

  20. GeoSearch: A lightweight broking middleware for geospatial resources discovery

    Science.gov (United States)

    Gui, Z.; Yang, C.; Liu, K.; Xia, J.

    2012-12-01

    With petabytes of geodata, thousands of geospatial web services available over the Internet, it is critical to support geoscience research and applications by finding the best-fit geospatial resources from the massive and heterogeneous resources. Past decades' developments witnessed the operation of many service components to facilitate geospatial resource management and discovery. However, efficient and accurate geospatial resource discovery is still a big challenge due to the following reasons: 1)The entry barriers (also called "learning curves") hinder the usability of discovery services to end users. Different portals and catalogues always adopt various access protocols, metadata formats and GUI styles to organize, present and publish metadata. It is hard for end users to learn all these technical details and differences. 2)The cost for federating heterogeneous services is high. To provide sufficient resources and facilitate data discovery, many registries adopt periodic harvesting mechanism to retrieve metadata from other federated catalogues. These time-consuming processes lead to network and storage burdens, data redundancy, and also the overhead of maintaining data consistency. 3)The heterogeneous semantics issues in data discovery. Since the keyword matching is still the primary search method in many operational discovery services, the search accuracy (precision and recall) is hard to guarantee. Semantic technologies (such as semantic reasoning and similarity evaluation) offer a solution to solve these issues. However, integrating semantic technologies with existing service is challenging due to the expandability limitations on the service frameworks and metadata templates. 4)The capabilities to help users make final selection are inadequate. Most of the existing search portals lack intuitive and diverse information visualization methods and functions (sort, filter) to present, explore and analyze search results. Furthermore, the presentation of the value

  1. XRFID: Design of an XML Based Efficient Middleware for RFID Systems

    Directory of Open Access Journals (Sweden)

    Indrajit Bhattacharya

    2012-11-01

    existing middleware solutions show dramatic degradation in their performance when the number of simultaneously working readers increases. Our proposed solution tries to recover from that situation also. One of the major issues for large scale deployment of RFID systems is the design of a robust and flexible middleware system to interface various applications to the RFID readers. Most of the existing RFID middleware systems are costly, bulky, non‐portable and heavily dependent on the support software. Our work also provides flexibility for easy addition and removal of applications and hardware.

  2. EJB 3.0 database persistence with Oracle Fusion Middleware 11g LITE

    CERN Document Server

    Vohra, Deepak

    2011-01-01

    This tutorial-style book includes a practical example that demonstrates how to develop EJB 3.0 database persistence applications with Oracle Fusion Middleware 11g. The book is illustrated with figures at milestone stages. The material has been carefully selected from Packt's fuller 572 page EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g. The target audience of the book is EJB 3.0 application developers who want to learn about the use of EJB 3.0 database persistence with Oracle Fusion Middleware 11g. You are expected to have prior, albeit beginner's knowledge about Java EE, EJBs

  3. Extending Binary Large Object Support to Open Grid Services Architecture-Data Access and Integration Middleware Client Toolkit

    Directory of Open Access Journals (Sweden)

    Kiran K. Patnaik

    2011-01-01

    Full Text Available Problem statement: OGSA-DAI middleware allows data resources to be federated and accessed via web services on the web or within grids or clouds. It provides a client API for writing programs that access the exposed databases. Migrating existing applications to the new technology and using a new API to access the data of DBMS with BLOB is difficult and discouraging. A JDBC Driver is a much convenient alternative to existing mechanism and provides an extension to OGSA-DAI middleware and allows applications to use databases exposed in a grid through the OGSA-DAI 3.0. However, the driver does not support Binary Large Objects (BLOB. Approach: The driver is enhanced to support BLOB using the OGSA-DAI Client API. It transforms the JDBC calls into an OGSA-DAI workflow request and sends it to the server using Web Services (WS. The client API of OGSA-DAI uses activities that are connected to form a workflow and executed using a pipeline. This workflow mechanism is embedded into the driver. The WS container dispatches the request to the OGSA-DAI middleware for processing and the result is then transformed back to an instance of ResultSet implementation using the OGSA-DAI Client API, before it is returned to the user. Results: Test on handling of BLOBs (images, flash files and videos ranging from size 1 KB to size 2 GB were carried out on Oracle, MySQL and PostgreSQL databases using our enhanced JDBC driver and it performed well. Conclusion: The enhanced JDBC driver now can offer users, with no experience in Grid computing specifically on OGSA-DAI, the possibility to give their applications the ability to access databases exposed on the grid with minimal effort.

  4. The Next Generation ARC Middleware and ATLAS Computing Model

    CERN Document Server

    Filipcic, A; The ATLAS collaboration; Smirnova, O; Konstantinov, A; Karpenko, D

    2012-01-01

    The distributed NDGF Tier-1 and associated Nordugrid clusters are well integrated into the ATLAS computing model but follow a slightly different paradigm than other ATLAS resources. The current strategy does not divide the sites as in the commonly used hierarchical model, but rather treats them as a single storage endpoint and a pool of distributed computing nodes. The next generation ARC middleware with its several new technologies provides new possibilities in development of the ATLAS computing model, such as pilot jobs with pre-cached input files, automatic job migration between the sites, integration of remote sites without connected storage elements, and automatic brokering for jobs with non-standard resource requirements. ARC's data transfer model provides an automatic way for the computing sites to participate in ATLAS' global task management system without requiring centralised brokering or data transfer services. The powerful API combined with Python and Java bindings can easily be used to build new ...

  5. Distributed heterogeneous inspecting system and its middleware-based solution

    Institute of Scientific and Technical Information of China (English)

    黄理灿; 吴朝晖; 潘云鹤

    2003-01-01

    There are many cases when an organization needs to monitor the data and operations of its super-vised departments, especially those departments which are not owned by this organization and are managed by their own information systems. Distributed Heterogeneous Inspecting System (DHIS) is the system an organization uses to monitor its supervised departments by inspecting their information systems. In DHIS, the inspected systems are generally distributed, heterogeneous, and constructed by different companies. DHIS has three key processes-abstracting core data sets and core operation sets, collecting these sets, and inspecting these collected sets. In this paper, we present the concept and mathematical definition of DHIS, a metadata method for solving the interoperability, a security strategy for data transferring, and a middleware-based solution of DHIS. We also describe an example of the inspecting system at WENZHOU custom.

  6. Distributed heterogeneous inspecting system and its middleware-based solution

    Institute of Scientific and Technical Information of China (English)

    黄理灿; 吴朝晖; 潘云鹤

    2003-01-01

    There are many cases when an organization needs to monitor the data and operations of its supervised departments, especially those departments which are not owned by this organization and are managed by their own information systems. Distributed Heterogeneous Inspecting System (DHIS) is the system an organization uses to monitor its supervised departments by inspecting their information systems. In DHIS, the inspected systems are generally distributed, heterogeneous, and constructed by different companies. DHIS has three key processes-abstracting core data sets and core operation sets, collecting these sets, and inspecting these collected sets. In this paper, we present the concept and mathematical definition of DHIS, a metadata method for solving the interoperability, a security strategy for data transferring, and a middleware-based solution of DHIS. We also describe an example of the inspecting system at WENZHOU custom.

  7. X-RESTORE: Middleware for XML's Relational Storage and Retrieve

    Institute of Scientific and Technical Information of China (English)

    Wan Chang-xuan; Liu Yun-sheng

    2003-01-01

    We propose a new approach to store and query XML data in an RDBMS basing on the idea of the numbering scheme and inverted list. Our approach allows us to quickly determine the precedence, sibling and ancestor/descendant relationships between any pair of nodes in the hierarchy of XML, and utilize path index to speed up calculating of path expressions. Examples have demonstrated that our approach can effectively and efficiently support both XQuery queries and keyword searches. Our approach is also flexible enough to support XML documents both with Schema and without Schema, and applications both retrieval and update. We also present the architecture of middleware for application accessing XML documents stored in relations, and an algorithm translating a given XML document into relations effectively.

  8. The Controls Middleware (CMW) at CERN Status and Usage

    CERN Document Server

    Andersson, J; Kostro, K; Di Maio, F; Trofimov, N

    2003-01-01

    A new Controls Middleware (CMW) for the "LHC era" has been recently designed and imp lemented to serve the CERN accelerator sector. It has now been used for almost two years in the operation of the PS accelerator complex and is being introduced for the control of all the upcoming LHC equipment as well as for the existing SPS equipment. This paper presents the architecture and capabilities of the system and shows how it has been integrated in the existing controls environment. The use of publish/subscribe paradigm, the performance of the system, and administration facilities are described as well. Based on the experience with CMW we also discuss the validity of choices, which were made almost four years ago.

  9. Distributed heterogeneous inspecting system and its middleware-based solution.

    Science.gov (United States)

    Huang, Li-can; Wu, Zhao-hui; Pan, Yun-he

    2003-01-01

    There are many cases when an organization needs to monitor the data and operations of its supervised departments, especially those departments which are not owned by this organization and are managed by their own information systems. Distributed Heterogeneous Inspecting System (DHIS) is the system an organization uses to monitor its supervised departments by inspecting their information systems. In DHIS, the inspected systems are generally distributed, heterogeneous, and constructed by different companies. DHIS has three key processes-abstracting core data sets and core operation sets, collecting these sets, and inspecting these collected sets. In this paper, we present the concept and mathematical definition of DHIS, a metadata method for solving the interoperability, a security strategy for data transferring, and a middleware-based solution of DHIS. We also describe an example of the inspecting system at WENZHOU custom.

  10. Remote device access in the new accelerator controls middleware

    CERN Document Server

    Baggiolini, V; Jensen, S; Kostro, K; Risso, A; Trofimov, N N; SL

    2001-01-01

    This paper presents the Remote Device Access (RDA) package developed at CERN in the framework of the joint PS/SL Controls Middleware project. The package design reflects the Accelerator Device Model in which devices, named entities in the control system, can be controlled via properties. RDA implements this model in a distributed environment with devices residing in servers that can run anywhere in the controls network. It provides a location-independent and reliable access to the devices from control programs. By invoking the device access methods, clients can read, write and subscribe to device property values. We describe the architecture and design of RDA its API, and CORBA-based implementations in Java and C++. First applications of RDA in the CERN accelerator control systems are described as well.

  11. X-RESTORE:Middleware for XML's Relational Storage and Retrieve

    Institute of Scientific and Technical Information of China (English)

    Wan; Chang-xuan; Liu; Yun-Sheng

    2003-01-01

    We propose a new approach to store and query XML data in an RDBMS basing on the idea of the numbering scheme and inverted list. Our approach allows us to quickly determine the precedence, sibling and ancestor/descendant relationships between any pair of nodes in the hierarchy of XML, and utilize path index to speed up calculating of path expressions. Examples have demonstrated that our approach can effectively and efficiently support both XQuery queries and keyword searches. our approach is also flexible enough to support XML documents both with Schema and without Schema, and applications both retrieval and update. We also present the architecture of middleware for application accessing XML documents stored in relations, and an algorithm translating a given XML document into relation effectively.

  12. STREAM2016: Streaming Requirements, Experience, Applications and Middleware Workshop

    Energy Technology Data Exchange (ETDEWEB)

    Fox, Geoffrey [Indiana Univ., Bloomington, IN (United States); Jha, Shantenu [Rutgers Univ., New Brunswick, NJ (United States); Ramakrishnan, Lavanya [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2016-10-01

    The Department of Energy (DOE) Office of Science (SC) facilities including accelerators, light sources and neutron sources and sensors that study, the environment, and the atmosphere, are producing streaming data that needs to be analyzed for next-generation scientific discoveries. There has been an explosion of new research and technologies for stream analytics arising from the academic and private sectors. However, there has been no corresponding effort in either documenting the critical research opportunities or building a community that can create and foster productive collaborations. The two-part workshop series, STREAM: Streaming Requirements, Experience, Applications and Middleware Workshop (STREAM2015 and STREAM2016), were conducted to bring the community together and identify gaps and future efforts needed by both NSF and DOE. This report describes the discussions, outcomes and conclusions from STREAM2016: Streaming Requirements, Experience, Applications and Middleware Workshop, the second of these workshops held on March 22-23, 2016 in Tysons, VA. STREAM2016 focused on the Department of Energy (DOE) applications, computational and experimental facilities, as well software systems. Thus, the role of “streaming and steering” as a critical mode of connecting the experimental and computing facilities was pervasive through the workshop. Given the overlap in interests and challenges with industry, the workshop had significant presence from several innovative companies and major contributors. The requirements that drive the proposed research directions, identified in this report, show an important opportunity for building competitive research and development program around streaming data. These findings and recommendations are consistent with vision outlined in NRC Frontiers of Data and National Strategic Computing Initiative (NCSI) [1, 2]. The discussions from the workshop are captured as topic areas covered in this report's sections. The report

  13. Middleware and Web Services for the Collaborative Information Portal of NASA's Mars Exploration Rovers Mission

    Science.gov (United States)

    Sinderson, Elias; Magapu, Vish; Mak, Ronald

    2004-01-01

    We describe the design and deployment of the middleware for the Collaborative Information Portal (CIP), a mission critical J2EE application developed for NASA's 2003 Mars Exploration Rover mission. CIP enabled mission personnel to access data and images sent back from Mars, staff and event schedules, broadcast messages and clocks displaying various Earth and Mars time zones. We developed the CIP middleware in less than two years time usins cutting-edge technologies, including EJBs, servlets, JDBC, JNDI and JMS. The middleware was designed as a collection of independent, hot-deployable web services, providing secure access to back end file systems and databases. Throughout the middleware we enabled crosscutting capabilities such as runtime service configuration, security, logging and remote monitoring. This paper presents our approach to mitigating the challenges we faced, concluding with a review of the lessons we learned from this project and noting what we'd do differently and why.

  14. 78 FR 70076 - Large Scale Networking (LSN)-Middleware and Grid Interagency Coordination (MAGIC) Team

    Science.gov (United States)

    2013-11-22

    ... Large Scale Networking (LSN)--Middleware and Grid Interagency Coordination (MAGIC) Team AGENCY: The Networking and Information Technology Research and Development (NITRD) National Coordination Office (NCO... Networking (LSN) Coordinating Group (CG). Public Comments: The government seeks individual input;...

  15. 77 FR 58416 - Large Scale Networking (LSN); Middleware and Grid Interagency Coordination (MAGIC) Team

    Science.gov (United States)

    2012-09-20

    ... Large Scale Networking (LSN); Middleware and Grid Interagency Coordination (MAGIC) Team AGENCY: The Networking and Information Technology Research and Development (NITRD) National Coordination Office (NCO... to the Large Scale Networking (LSN) Coordinating Group (CG). Public Comments: The government...

  16. 78 FR 7464 - Large Scale Networking (LSN)-Middleware And Grid Interagency Coordination (MAGIC) Team

    Science.gov (United States)

    2013-02-01

    ... Large Scale Networking (LSN)--Middleware And Grid Interagency Coordination (MAGIC) Team AGENCY: The Networking and Information Technology Research and Development (NITRD) National Coordination Office (NCO... Team reports to the Large Scale Networking (LSN) Coordinating Group (CG). Public Comments:...

  17. An Attack-Resilient Middleware Architecture for Grid Integration of Distributed Energy Resources

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Yifu; Mendis, Gihan J.; He, Youbiao; Wei, Jin; Hodge, Bri-Mathias

    2017-05-04

    In recent years, the increasing penetration of Distributed Energy Resources (DERs) has made an impact on the operation of the electric power systems. In the grid integration of DERs, data acquisition systems and communications infrastructure are crucial technologies to maintain system economic efficiency and reliability. Since most of these generators are relatively small, dedicated communications investments for every generator are capital cost prohibitive. Combining real-time attack-resilient communications middleware with Internet of Things (IoTs) technologies allows for the use of existing infrastructure. In our paper, we propose an intelligent communication middleware that utilizes the Quality of Experience (QoE) metrics to complement the conventional Quality of Service (QoS) evaluation. Furthermore, our middleware employs deep learning techniques to detect and defend against congestion attacks. The simulation results illustrate the efficiency of our proposed communications middleware architecture.

  18. Security threats and solutions in distributed, interoperable health information systems using middleware.

    Science.gov (United States)

    Blobel, B; Holena, M

    1997-01-01

    Increasingly, distributed, interoperable healthcare information systems, which meet the shared care paradigm, work across the boundaries of policy, organisational, and technological domains and are based on middleware concepts. Especially in healthcare with its sensitive personal and medical data, such systems require advanced data security measures. In the paper, a common object-oriented security model for middleware systems and advertisements for implementation are proposed, corresponding the security requirement of both the user and the application environment.

  19. Enabling Proactivity in Context-aware Middleware Systems by means of a Planning Framework based on HTN Planning

    Directory of Open Access Journals (Sweden)

    Preeti Bhargava

    2015-08-01

    Full Text Available Today’s context-aware systems tend to be reactive or ‘pull’ based - the user requests or queries for some information and the system responds with the requested information. However, none of the systems anticipate the user’s intent and behavior, or take into account his current events and activities to pro-actively ‘push’ relevant information to the user. On the other hand, Proactive context-aware systems can predict and anticipate user intent and behavior, and act proactively on the users’ behalf without explicit requests from them. Two fundamental capabilities of such systems are: prediction and autonomy. In this paper, we address the second capability required by a context-aware system to act proactively i.e. acting autonomously without an explicit user request. To address it, we present a new paradigm for enabling proactivity in context-aware middleware systems by means of a Planning Framework based on HTN planning. We present the design of a Planning Framework within the infrastructure of our intelligent context-aware middleware called Rover II. We also implement this framework and evaluate its utility with several use cases. We also highlight the benefits of using such a framework in dynamic ubiquitous systems.

  20. Combining a Multi-Agent System and Communication Middleware for Smart Home Control: A Universal Control Platform Architecture

    Directory of Open Access Journals (Sweden)

    Song Zheng

    2017-09-01

    Full Text Available In recent years, the smart home field has gained wide attention for its broad application prospects. However, families using smart home systems must usually adopt various heterogeneous smart devices, including sensors and devices, which makes it more difficult to manage and control their home system. How to design a unified control platform to deal with the collaborative control problem of heterogeneous smart devices is one of the greatest challenges in the current smart home field. The main contribution of this paper is to propose a universal smart home control platform architecture (IAPhome based on a multi-agent system and communication middleware, which shows significant adaptability and advantages in many aspects, including heterogeneous devices connectivity, collaborative control, human-computer interaction and user self-management. The communication middleware is an important foundation to design and implement this architecture which makes it possible to integrate heterogeneous smart devices in a flexible way. A concrete method of applying the multi-agent software technique to solve the integrated control problem of the smart home system is also presented. The proposed platform architecture has been tested in a real smart home environment, and the results indicate that the effectiveness of our approach for solving the collaborative control problem of different smart devices.

  1. Middleware Reflexivo para la gestión de Aprendizajes Conectivistas en Ecologías de Conocimientos (eco-conectivismo

    Directory of Open Access Journals (Sweden)

    Jose Aguilar

    2015-11-01

    Full Text Available En este artículo se propone la arquitectura de un Middleware Reflexivo basado en computación autonómica, cuyo objetivo es gestionar un ambiente conectivista de aprendizaje, modelado bajo el paradigma de las ecologías del conocimiento. El Middleware es capaz de monitorear el ambiente que consiste de un conjunto de Entornos Personales de Aprendizaje que son percibidos como objetos auto-organizados que forman ecosistemas. La evolución del proceso de aprendizaje depende del análisis del comportamiento Web de los aprendices, y de un esquema de supervivencia ecológica que promueve las relaciones sociales, diversidad y tolerancia en un dominio de conocimiento socializado. El middleware utiliza minería web de uso para caracterizar el comportamiento del aprendiz, técnicas de agrupamiento para los ecosistemas de aprendizaje, y un sistema recomendador cognitivo-colaborativo para el proceso de autoadaptación de las estrategias de aprendizaje.

  2. FTT-MA: a flexible time-triggered middleware architecture for time sensitive, resource-aware AmI systems.

    Science.gov (United States)

    Noguero, Adrián; Calvo, Isidro; Pérez, Federico; Almeida, Luis

    2013-05-13

    There is an increasing number of Ambient Intelligence (AmI) systems that are time-sensitive and resource-aware. From healthcare to building and even home/office automation, it is now common to find systems combining interactive and sensing multimedia traffic with relatively simple sensors and actuators (door locks, presence detectors, RFIDs, HVAC, information panels, etc.). Many of these are today known as Cyber-Physical Systems (CPS). Quite frequently, these systems must be capable of (1) prioritizing different traffic flows (process data, alarms, non-critical data, etc.), (2) synchronizing actions in several distributed devices and, to certain degree, (3) easing resource management (e.g., detecting faulty nodes, managing battery levels, handling overloads, etc.). This work presents FTT-MA, a high-level middleware architecture aimed at easing the design, deployment and operation of such AmI systems. FTT-MA ensures that both functional and non-functional aspects of the applications are met even during reconfiguration stages. The paper also proposes a methodology, together with a design tool, to create this kind of systems. Finally, a sample case study is presented that illustrates the use of the middleware and the methodology proposed in the paper.

  3. A cloud-based car parking middleware for IoT-based smart cities: design and implementation.

    Science.gov (United States)

    Ji, Zhanlin; Ganchev, Ivan; O'Droma, Máirtín; Zhao, Li; Zhang, Xueji

    2014-11-25

    This paper presents the generic concept of using cloud-based intelligent car parking services in smart cities as an important application of the Internet of Things (IoT) paradigm. This type of services will become an integral part of a generic IoT operational platform for smart cities due to its pure business-oriented features. A high-level view of the proposed middleware is outlined and the corresponding operational platform is illustrated. To demonstrate the provision of car parking services, based on the proposed middleware, a cloud-based intelligent car parking system for use within a university campus is described along with details of its design, implementation, and operation. A number of software solutions, including Kafka/Storm/Hbase clusters, OSGi web applications with distributed NoSQL, a rule engine, and mobile applications, are proposed to provide 'best' car parking service experience to mobile users, following the Always Best Connected and best Served (ABC&S) paradigm.

  4. A Cloud-Based Car Parking Middleware for IoT-Based Smart Cities: Design and Implementation

    Science.gov (United States)

    Ji, Zhanlin; Ganchev, Ivan; O'Droma, Máirtín; Zhao, Li; Zhang, Xueji

    2014-01-01

    This paper presents the generic concept of using cloud-based intelligent car parking services in smart cities as an important application of the Internet of Things (IoT) paradigm. This type of services will become an integral part of a generic IoT operational platform for smart cities due to its pure business-oriented features. A high-level view of the proposed middleware is outlined and the corresponding operational platform is illustrated. To demonstrate the provision of car parking services, based on the proposed middleware, a cloud-based intelligent car parking system for use within a university campus is described along with details of its design, implementation, and operation. A number of software solutions, including Kafka/Storm/Hbase clusters, OSGi web applications with distributed NoSQL, a rule engine, and mobile applications, are proposed to provide ‘best’ car parking service experience to mobile users, following the Always Best Connected and best Served (ABC&S) paradigm. PMID:25429416

  5. SOAP Serialization Performance Enhancement, Design And Implementation Of A Middleware

    CERN Document Server

    Minaei, Behrouz

    2009-01-01

    The most straightforward way to improve performance of any system is to define the bottlenecks and think of ways to remove them. Web services are the inseparable part of any web application, as a result enhancing performance of web services will have a great effect on the overall performance of the system. The most widely used communication protocol in the web services model, SOAP, is a simple protocol for the exchange of messages. The serialization of large SOAP responses is a major performance bottleneck in a SOAP message exchange. Clearly, some web servers can expect to receive many similar messages for a particular web service as they share the same signature. The idea behind this paper is to avoid the redundant serialization stage of SOAP responses for request which have the same call parameters. The technique exploits the similarities between call parameters to improve web service Response Time by avoiding redundant serialization of the same response with the help of a middleware running on top of web s...

  6. Power Aware Management Middleware for Multiple Radio Interfaces

    Science.gov (United States)

    Friedman, Roy; Kogan, Alex

    Modern mobile phones and laptops are equipped with multiple wireless communication interfaces, such as WiFi and Bluetooth (BT), enabling the creation of ad-hoc networks. These interfaces significantly differ from one another in their power requirements, transmission range, bandwidth, etc. For example, BT is an order of magnitude more power efficient than WiFi, but its transmission range is an order of magnitude shorter. This paper introduces a management middleware that establishes a power efficient overlay for such ad-hoc networks, in which most devices can shut down their long range power hungry wireless interface (e.g., WiFi). Yet, the resulting overlay is fully connected, and for capacity and latency needs, no message ever travels more than 2k short range (e.g., BT) hops, where k is an arbitrary parameter. The paper describes the architecture of the solution and the management protocol, as well as a detailed simulations based performance study. The simulations largely validate the ability of the management infrastructure to obtain considerable power savings while keeping the network connected and maintaining reasonable latency. The performance study covers both static and mobile networks.

  7. Experiences with Software Quality Metrics in the EMI middleware

    Science.gov (United States)

    Alandes, M.; Kenny, E. M.; Meneses, D.; Pucciani, G.

    2012-12-01

    The EMI Quality Model has been created to define, and later review, the EMI (European Middleware Initiative) software product and process quality. A quality model is based on a set of software quality metrics and helps to set clear and measurable quality goals for software products and processes. The EMI Quality Model follows the ISO/IEC 9126 Software Engineering - Product Quality to identify a set of characteristics that need to be present in the EMI software. For each software characteristic, such as portability, maintainability, compliance, etc, a set of associated metrics and KPIs (Key Performance Indicators) are identified. This article presents how the EMI Quality Model and the EMI Metrics have been defined in the context of the software quality assurance activities carried out in EMI. It also describes the measurement plan and presents some of the metrics reports that have been produced for the EMI releases and updates. It also covers which tools and techniques can be used by any software project to extract “code metrics” on the status of the software products and “process metrics” related to the quality of the development and support process such as reaction time to critical bugs, requirements tracking and delays in product releases.

  8. Experiences with Software Quality Metrics in the EMI Middleware

    CERN Document Server

    CERN. Geneva

    2012-01-01

    The EMI Quality Model has been created to define, and later review, the EMI (European Middleware Initiative) software product and process quality. A quality model is based on a set of software quality metrics and helps to set clear and measurable quality goals for software products and processes. The EMI Quality Model follows the ISO/IEC 9126 Software Engineering – Product Quality to identify a set of characteristics that need to be present in the EMI software. For each software characteristic, such as portability, maintainability, compliance, etc, a set of associated metrics and KPIs (Key Performance Indicators) are identified. This article presents how the EMI Quality Model and the EMI Metrics have been defined in the context of the software quality assurance activities carried out in EMI. It also describes the measurement plan and presents some of the metrics reports that have been produced for the EMI releases and updates. It also covers which tools and techniques can be used by any software project t...

  9. Communication tools between Grid virtual organisations, middleware deployers and sites

    CERN Document Server

    Dimou, Maria

    2008-01-01

    Grid Deployment suffers today from the difficulty to reach users and site administrators when a package or a configuration parameter changes. Release notes, twiki pages and news’ broadcasts are not efficient enough. The interest of using GGUS as an efficient and effective intra-project communication tool is the message to the user community presented here. The purpose of GGUS is to bring together End Users and Supporters in the Regions where the Grid is deployed and in operation. Today’s Grid usage is still very far from the simplicity and functionality of the web. While pressing for middleware usability, we try to turn the Global Grid User Support (GGUS) into the central tool for identifying areas in the support environment that need attention. To do this, we exploit GGUS' capacity to expand, by including new Support Units that follow the project's operational structure. Using tailored GGUS database searches we obtain concrete results that prove where we need to improve procedures, Service Level Agreemen...

  10. A Gossip-based optimistic replication for efficient delay-sensitive streaming using an interactive middleware support system

    CERN Document Server

    Mavromoustakis, Constandinos X; 10.1109/JSYST.2010.2047172

    2010-01-01

    While sharing resources the efficiency is substantially degraded as a result of the scarceness of availability of the requested resources in a multiclient support manner. These resources are often aggravated by many factors like the temporal constraints for availability or node flooding by the requested replicated file chunks. Thus replicated file chunks should be efficiently disseminated in order to enable resource availability on-demand by the mobile users. This work considers a cross layered middleware support system for efficient delay-sensitive streaming by using each device's connectivity and social interactions in a cross layered manner. The collaborative streaming is achieved through the epidemically replicated file chunk policy which uses a transition-based approach of a chained model of an infectious disease with susceptible, infected, recovered and death states. The Gossip-based stateful model enforces the mobile nodes whether to host a file chunk or not or, when no longer a chunk is needed, to pur...

  11. Cross-Platform Android/iOS-Based Smart Switch Control Middleware in a Digital Home

    Directory of Open Access Journals (Sweden)

    Guo Jie

    2015-01-01

    Full Text Available With technological and economic development, people’s lives have been improved substantially, especially their home environments. One of the key aspects of these improvements is home intellectualization, whose core is the smart home control system. Furthermore, as smart phones have become increasingly popular, we can use them to control the home system through Wi-Fi, Bluetooth, and GSM. This means that control with phones is more convenient and fast and now becomes the primary terminal controller in the smart home. In this paper, we propose middleware for developing a cross-platform Android/iOS-based solution for smart switch control software, focus on the Wi-Fi based communication protocols between the cellphone and the smart switch, achieved a plugin-based smart switch function, defined and implemented the JavaScript interface, and then implemented the cross-platform Android/iOS-based smart switch control software; also the scenarios are illustrated. Finally, tests were performed after the completed realization of the smart switch control system.

  12. Testing and integrating the WLCG/EGEE middleware in the LHC computing

    CERN Document Server

    Campana, S; Lanciotti, E; Magini, N; Méndez-Lorenzo, P; Miccio, V; Sciabà, A; Santinelli, R; CERN. Geneva. IT Department

    2008-01-01

    The main goal of the Experiment Integration and Support (EIS) team in WLCG is to help the LHC experiments with using proficiently the gLite middleware as part of their computing framework. This contribution gives an overview of the activities of the EIS team, and focuses on a few of them particularly important for the experiments. One activity is the evaluation of the gLite workload management system (WMS) to assess its adequacy for the needs of the LHC computing in terms of functionality, reliability and scalability. We describe in detail how the experiment requirements can be mapped to validation criteria, and the WMS performances are accurately measured under realistic load conditions over prolonged periods of time. Another activity is the integration of the Service Availability Monitoring system (SAM) with the experiment monitoring framework. The SAM system is widely used in the EGEE operations to identify malfunctions in Grid services, but it can be adapted to perform the same function on experiment-spec...

  13. A Semantic Middleware Architecture Focused on Data and Heterogeneity Management within the Smart Grid

    Directory of Open Access Journals (Sweden)

    Rubén de Diego

    2014-09-01

    Full Text Available There is an increasing tendency of turning the current power grid, essentially unaware of variations in electricity demand and scattered energy sources, into something capable of bringing a degree of intelligence by using tools strongly related to information and communication technologies, thus turning into the so-called Smart Grid. In fact, it could be considered that the Smart Grid is an extensive smart system that spreads throughout any area where power is required, providing a significant optimization in energy generation, storage and consumption. However, the information that must be treated to accomplish these tasks is challenging both in terms of complexity (semantic features, distributed systems, suitable hardware and quantity (consumption data, generation data, forecasting functionalities, service reporting, since the different energy beneficiaries are prone to be heterogeneous, as the nature of their own activities is. This paper presents a proposal on how to deal with these issues by using a semantic middleware architecture that integrates different components focused on specific tasks, and how it is used to handle information at every level and satisfy end user requests.

  14. Single-Switch User Interface for Robot Arm to Help Disabled People Using RT-Middleware

    Directory of Open Access Journals (Sweden)

    Yujin Wakita

    2011-01-01

    Full Text Available We are developing a manipulator system in order to support disabled people with less muscle strength such as muscular dystrophy patients. Such a manipulator should have an easy user interface for the users to control it. But the supporting manipulator for disabled people cannot make large industry, so we should offer inexpensive manufacturing way. These type products are called “orphan products.” We report on the construction of the user interface system using RT-Middleware which is an open software platform for robot systems. Therefore other user interface components or robot components which are adapted to other symptoms can be replaced with the user interface without any change of the contents. A single switch and scanning menu panel are introduced as the input device for the manual control of the robot arm. The scanning menu panel is designed to perform various actions of the robot arm with the single switch. A manipulator simulation system was constructed to evaluate the input performance. Two muscular dystrophy patients tried our user interface to control the robot simulator and made comments. According to the comments by them, we made several improvements on the user interface. This improvements examples prepare inexpensive manufacturing way for orphan products.

  15. Performance Modeling of Proposed GUISET Middleware for Mobile Healthcare Services in E-Marketplaces

    Directory of Open Access Journals (Sweden)

    Alaba Olu Akingbesote

    2014-01-01

    Full Text Available GUISET is a proposed middleware engine currently under study in South Africa. The goal is to provide utility services for small, medium, and macroenterprises in the context of mobile e-services. Three things are important to make this engine effective and efficient: the implementation, performance, and the pricing strategy. The literature has delved richly into implementation issue of similar projects. Both the performance and the pricing strategy issues have not been fully discussed especially in the context of mobile healthcare services. Some literature has addressed the performance issue using the exogenous nonpriority and the preemptive model. However, with providers offering different services using that approach may prove to be difficult to implement. This work extends existing and widely adopted theories to non-preemptive model by using the queuing theory and the simulation model in the context of mobile healthcare services. Our evaluation is based on non-preemptive priority and nonpriority discipline. Our results reveal that the unconditional average waiting time remains the same with reduction in waiting time over the non-preemptive priority model in four out of the five classes observed. This is envisaged to be beneficial in mobile healthcare services where events are prioritized and urgent attention is needed to be given to urgent events.

  16. OpenBAN: An Open Building ANalytics Middleware for Smart Buildings

    Directory of Open Access Journals (Sweden)

    Pandarasamy Arjunan

    2016-03-01

    Full Text Available Towards the realization of smart building applications, buildings are increasingly instrumented with diverse sensors and actuators. These sensors generate large volumes of data which can be analyzed for optimizing building operations. Many building energy management tasks such as energy forecasting, disaggregation, among others require complex analytics leveraging collected sensor data. While several standalone and cloud-based systems for archiving, sharing and visualizing sensor data have emerged, their support for analyzing sensor data streams is primitive and limited to rule-based actions based on thresholds and simple aggregation functions. We develop OpenBAN, an open source sensor data analytics middleware for buildings, to make analytics an integral component of modern smart building applications. OpenBAN provides a framework of extensible sensor data processing elements for identifying various building context, which different applications can leverage. We validate the capabilities of OpenBAN by developing three representative real-world applications which are deployed in our test-bed buildings: (i household energy disaggregation, (ii detection of sprinkler usage from water meter data, and (iii electricity demand forecasting. We also provide a preliminary system performance of OpenBAN when deployed in the cloud and locally.

  17. Simulation of emission tomography using grid middleware for distributed computing.

    Science.gov (United States)

    Thomason, M G; Longton, R F; Gregor, J; Smith, G T; Hutson, R K

    2004-09-01

    SimSET is Monte Carlo simulation software for emission tomography. This paper describes a simple but effective scheme for parallel execution of SimSET using NetSolve, a client-server system for distributed computation. NetSolve (version 1.4.1) is "grid middleware" which enables a user (the client) to run specific computations remotely and simultaneously on a grid of networked computers (the servers). Since the servers do not have to be identical machines, computation may take place in a heterogeneous environment. To take advantage of diversity in machines and their workloads, a client-side scheduler was implemented for the Monte Carlo simulation. The scheduler partitions the total decay events by taking into account the inherent compute-speeds and recent average workloads, i.e., the scheduler assigns more decay events to processors expected to give faster service and fewer decay events to those expected to give slower service. When compute-speeds and sustained workloads are taken into account, the speed-up is essentially linear in the number of equivalent "maximum-service" processors. One modification in the SimSET code (version 2.6.2.3) was made to ensure that the total number of decay events specified by the user is maintained in the distributed simulation. No other modifications in the standard SimSET code were made. Each processor runs complete SimSET code for its assignment of decay events, independently of others running simultaneously. Empirical results are reported for simulation of a clinical-quality lung perfusion study.

  18. SLIM: a Secured Lightweight Interactive Middleware for wireless body area network.

    Science.gov (United States)

    Waluyo, Agustinus Borgy; Pek, Isaac; Chen, Xiang; Yeoh, Wee-Soon

    2008-01-01

    Advances in wireless sensor technology have introduced a new dimension in healthcare computing. With miniaturized sensor devices, continuous medical monitoring of patients to detect transient life threatening conditions from daily activities has been made possible. This phenomenon will certainly improve the quality of life for a majority of people. However, the growing variety of sensor devices in the market, has made application developments very challenging. In light of this view, we are proposing SLIM, a lightweight middleware that shields the underlying differences in sensor technology from the application layer. SLIM is designed to simplify/accelerate application development while not simply providing common middleware functions (i.e. data acquisition and plug-and-play capability) but also others like security and interactive features. To support both indoor and outdoor activities, SLIM is built to reside on mobile devices. At the end of the paper, we will show the prototype of the proposed middleware including its functionalities when used with a mobile application.

  19. Efficient and universal quantum key distribution based on chaos and middleware

    Science.gov (United States)

    Jiang, Dong; Chen, Yuanyuan; Gu, Xuemei; Xie, Ling; Chen, Lijun

    2017-01-01

    Quantum key distribution (QKD) promises unconditionally secure communications, however, the low bit rate of QKD cannot meet the requirements of high-speed applications. Despite the many solutions that have been proposed in recent years, they are neither efficient to generate the secret keys nor compatible with other QKD systems. This paper, based on chaotic cryptography and middleware technology, proposes an efficient and universal QKD protocol that can be directly deployed on top of any existing QKD system without modifying the underlying QKD protocol and optical platform. It initially takes the bit string generated by the QKD system as input, periodically updates the chaotic system, and efficiently outputs the bit sequences. Theoretical analysis and simulation results demonstrate that our protocol can efficiently increase the bit rate of the QKD system as well as securely generate bit sequences with perfect statistical properties. Compared with the existing methods, our protocol is more efficient and universal, it can be rapidly deployed on the QKD system to increase the bit rate when the QKD system becomes the bottleneck of its communication system.

  20. Developing a Hadoop-based Middleware for Handling Multi-dimensional NetCDF

    Science.gov (United States)

    Li, Z.; Yang, C. P.; Schnase, J. L.; Duffy, D.; Lee, T. J.

    2014-12-01

    Climate observations and model simulations are collecting and generating vast amounts of climate data, and these data are ever-increasing and being accumulated in a rapid speed. Effectively managing and analyzing these data are essential for climate change studies. Hadoop, a distributed storage and processing framework for large data sets, has attracted increasing attentions in dealing with the Big Data challenge. The maturity of Infrastructure as a Service (IaaS) of cloud computing further accelerates the adoption of Hadoop in solving Big Data problems. However, Hadoop is designed to process unstructured data such as texts, documents and web pages, and cannot effectively handle the scientific data format such as array-based NetCDF files and other binary data format. In this paper, we propose to build a Hadoop-based middleware for transparently handling big NetCDF data by 1) designing a distributed climate data storage mechanism based on POSIX-enabled parallel file system to enable parallel big data processing with MapReduce, as well as support data access by other systems; 2) modifying the Hadoop framework to transparently processing NetCDF data in parallel without sequencing or converting the data into other file formats, or loading them to HDFS; and 3) seamlessly integrating Hadoop, cloud computing and climate data in a highly scalable and fault-tolerance framework.

  1. Munin: A Peer-to-Peer Middleware for Ubiquitous Analytics and Visualization Spaces.

    Science.gov (United States)

    Badam, Sriram Karthik; Fisher, Eli; Elmqvist, Niklas

    2015-02-01

    We present Munin, a software framework for building ubiquitous analytics environments consisting of multiple input and output surfaces, such as tabletop displays, wall-mounted displays, and mobile devices. Munin utilizes a service-based model where each device provides one or more dynamically loaded services for input, display, or computation. Using a peer-to-peer model for communication, it leverages IP multicast to replicate the shared state among the peers. Input is handled through a shared event channel that lets input and output devices be fully decoupled. It also provides a data-driven scene graph to delegate rendering to peers, thus creating a robust, fault-tolerant, decentralized system. In this paper, we describe Munin's general design and architecture, provide several examples of how we are using the framework for ubiquitous analytics and visualization, and present a case study on building a Munin assembly for multidimensional visualization. We also present performance results and anecdotal user feedback for the framework that suggests that combining a service-oriented, data-driven model with middleware support for data sharing and event handling eases the design and execution of high performance distributed visualizations.

  2. CDTOM: A Context-driven Task-oriented Middleware for Pervasive Homecare Environment

    CERN Document Server

    Ni, Hongbo; Zhang, Daqing; Wu, Shu

    2011-01-01

    With the growing number of the elderly, we see a greater demand for home care, and the vision of pervasive computing is also floating into the domain of the household that aims to build a smart home which can assist inhabitants (users) to live more conveniently and harmoniously. Such health-care pervasive applications in smart home should focus on the inhabitant's goal or task in diverse situations, rather than the various complex devices and services. The core challenge for homecare design is to perceive the environment and assess occurring situations, thus allowing systems to behave intelligently according to the user's intent. Due to the dynamic and heterogeneous nature of pervasive computing environment, it is difficult for an average user to obtain right information and service and in right place at right time. This paper proposes a context-driven task-oriented middleware (CDTOM) to meet the challenge. The most important component is its task model that provides an adequate high-level description of user...

  3. Comparison, evaluation, and possible harmonisation of the HL7, DHE, and CORBA middleware.

    Science.gov (United States)

    Blobel, B; Holena, M

    1997-01-01

    Regarding the need of change of both healthcare systems' structure and supporting information systems' architecture to the "Shared Care" paradigm, appropriate health information systems have to be distributed and interoperable, and will usually be based on middleware concepts. Structure and function of information systems meeting such requirements have been analysed in general. To describe, evaluate and combine distributed systems, a generic component model has been used. As a result, CORBA, DHE, and HL7 have been assessed systematically. A way to a common and harmonised middleware approach has been proposed.

  4. Demystifying embedded systems middleware understanding file systems, databases, virtual machines, networking and more

    CERN Document Server

    Noergaard, Tammy

    2010-01-01

    This practical technical guide to embedded middleware implementation offers a coherent framework that guides readers through all the key concepts necessary to gain an understanding of this broad topic. Big picture theoretical discussion is integrated with down-to-earth advice on successful real-world use via step-by-step examples of each type of middleware implementation. Technically detailed case studies bring it all together, by providing insight into typical engineering situations readers are likely to encounter. Expert author Tammy Noergaard keeps explanations as simple and readable as

  5. 高可用CORBA%The Design and Realization of Highly Availability Distributed System of CORBA

    Institute of Scientific and Technical Information of China (English)

    郭乐深; 刘锦德

    2000-01-01

    Recently,while highly available computer systems used for homogeneous environment have been launched into market,those used for heterogeneous environment are still staying vendors' research labs. In this paper,a highly availability distributed system based on CORBA is proposed,and the design and implementation of this system are fully explained. The analysis results show that the scheme presented is an effective approach.

  6. A Runtime Testability Metric for Dynamic High-Availability Component-based Systems

    NARCIS (Netherlands)

    Gonzales-Sanchez, A.; Piel, E.A.B.; Gross, H.G.; Van Gemund, A.J.C.

    2011-01-01

    Runtime testing is emerging as the solution for the integration and assessment of highly dynamic, high availability software systems where traditional development-time integration testing cannot be performed. A prerequisite for runtime testing is the knowledge about to which extent the system can be

  7. Runtime Testability in Dynamic Highly-Availability Component-based Systems

    NARCIS (Netherlands)

    Gonzalez, A.; Piel, E.; Gross, H.G.; Van Gemund, A.J.C.

    2010-01-01

    Runtime testing is emerging as the solution for the integration and assessment of highly dynamic, high availability software systems where traditional development-time integration testing cannot be performed. A prerequisite for runtime testing is the knowledge about to which extent the system can be

  8. Runtime Testability in Dynamic Highly-Availability Component-based Systems

    NARCIS (Netherlands)

    Gonzalez, A.; Piel, E.; Gross, H.G.; Van Gemund, A.J.C.

    2010-01-01

    Runtime testing is emerging as the solution for the integration and assessment of highly dynamic, high availability software systems where traditional development-time integration testing cannot be performed. A prerequisite for runtime testing is the knowledge about to which extent the system can be

  9. A Runtime Testability Metric for Dynamic High-Availability Component-based Systems

    NARCIS (Netherlands)

    Gonzales-Sanchez, A.; Piel, E.A.B.; Gross, H.G.; Van Gemund, A.J.C.

    2011-01-01

    Runtime testing is emerging as the solution for the integration and assessment of highly dynamic, high availability software systems where traditional development-time integration testing cannot be performed. A prerequisite for runtime testing is the knowledge about to which extent the system can be

  10. Fault Tolerance Middleware for a Multi-Core System

    Science.gov (United States)

    Some, Raphael R.; Springer, Paul L.; Zima, Hans P.; James, Mark; Wagner, David A.

    2012-01-01

    Fault Tolerance Middleware (FTM) provides a framework to run on a dedicated core of a multi-core system and handles detection of single-event upsets (SEUs), and the responses to those SEUs, occurring in an application running on multiple cores of the processor. This software was written expressly for a multi-core system and can support different kinds of fault strategies, such as introspection, algorithm-based fault tolerance (ABFT), and triple modular redundancy (TMR). It focuses on providing fault tolerance for the application code, and represents the first step in a plan to eventually include fault tolerance in message passing and the FTM itself. In the multi-core system, the FTM resides on a single, dedicated core, separate from the cores used by the application. This is done in order to isolate the FTM from application faults and to allow it to swap out any application core for a substitute. The structure of the FTM consists of an interface to a fault tolerant strategy module, a responder module, a fault manager module, an error factory, and an error mapper that determines the severity of the error. In the present reference implementation, the only fault tolerant strategy implemented is introspection. The introspection code waits for an application node to send an error notification to it. It then uses the error factory to create an error object, and at this time, a severity level is assigned to the error. The introspection code uses its built-in knowledge base to generate a recommended response to the error. Responses might include ignoring the error, logging it, rolling back the application to a previously saved checkpoint, swapping in a new node to replace a bad one, or restarting the application. The original error and recommended response are passed to the top-level fault manager module, which invokes the response. The responder module also notifies the introspection module of the generated response. This provides additional information to the

  11. Build-and-test workloads for grid middleware: problem, analysis, and applications

    NARCIS (Netherlands)

    Iosup, A.; Epema, D.

    2007-01-01

    The Grid promise is starting to materialize today: largescale multi-site infrastructures have grown to assist the work of scientists from all around the world. This tremendous growth can be sustained and continued only through a higher quality of the middleware, in terms of deployability and of corr

  12. The design and implementation of multi-source application middleware based on service bus

    Science.gov (United States)

    Li, Yichun; Jiang, Ningkang

    2017-06-01

    With the rapid development of the Internet of Things(IoT), the real-time monitoring data are increasing with different types and large amounts. Aiming at taking full advantages of the data, we designed and implemented an application middleware, which not only supports the three-layer architecture of IoT information system but also enables the flexible configuration of multiple resources access and other accessional modules. The middleware platform shows the characteristics of lightness, security, AoP (aspect-oriented programming), distribution and real-time, which can let application developers construct the information processing systems on related areas in a short period. It focuses not limited to these functions: pre-processing of data format, the definition of data entity, the callings and handlings of distributed service and massive data process. The result of experiment shows that the performance of middleware is more excellent than some message queue construction to some degree and its throughput grows better as the number of distributed nodes increases while the code is not complex. Currently, the middleware is applied to the system of Shanghai Pudong environmental protection agency and achieved a great success.

  13. Towards Self-managed Pervasive Middleware using OWL/SWRL ontologies

    DEFF Research Database (Denmark)

    Zhang, Weishan; Hansen, Klaus Marius

    2008-01-01

    /SWRL context ontologies based self-management approach with the self-diagnosis in Hydra middleware, using device state machine and other dynamic context information, for example web service calls. The evaluations in terms of extensibility, performance and scalability show that this approach is effective...

  14. MySQL High Availability Tools for Building Robust Data Centers

    CERN Document Server

    Bell, Charles; Thalmann, Lars

    2010-01-01

    Server bottlenecks and failures are a fact of life in any database deployment, but they don't have to bring everything to a halt. MySQL has several features that can help you protect your system from outages, whether it's running on hardware, virtual machines, or in the cloud. MySQL High Availability explains how to use these replication, cluster, and monitoring features in a wide range of real-life situations. Written by engineers who designed many of the tools covered inside, this book reveals undocumented or hard-to-find aspects of MySQL reliability and high availability -- knowledge that

  15. TECHNICAL SUPPORT AS A BASIS OF HIGH AVAILABILITY LEVEL AND IT SYSTEM SERVICE QUALITY

    Directory of Open Access Journals (Sweden)

    Dejan Vidojevic

    2007-06-01

    Full Text Available This work presents the development and implementation methodology of technical support in IT1system operation. Methodology is developed and applied in realistic system (Information system of the Tax administration - DIS 2003, which is technically very complex and highly distributed. The results of IT system availability assessment and identification of the critical components are input parameters in the process of establishing of the technical support. The importance of technical support for achieving optimal IT system availability and IT service quality is assessed according to its operation during one year. The history of technical support system operation is a basis for further continuous improvement.

  16. High light-induced hydrogen peroxide production in Chlamydomonas reinhardtii is increased by high CO2 availability.

    Science.gov (United States)

    Roach, Thomas; Na, Chae Sun; Krieger-Liszkay, Anja

    2015-03-01

    The production of reactive oxygen species (ROS) is an unavoidable part of photosynthesis. Stress that accompanies high light levels and low CO2 availability putatively includes enhanced ROS production in the so-called Mehler reaction. Such conditions are thought to encourage O2 to become an electron acceptor at photosystem I, producing the ROS superoxide anion radical (O2·-) and hydrogen peroxide (H2 O2 ). In contrast, here it is shown in Chlamydomonas reinhardtii that CO2 depletion under high light levels lowered cellular H2 O2 production, and that elevated CO2 levels increased H2 O2 production. Using various photosynthetic and mitochondrial mutants of C. reinhardtii, the chloroplast was identified as the main source of elevated H2 O2 production under high CO2 availability. High light levels under low CO2 availability induced photoprotective mechanisms called non-photochemical quenching, or NPQ, including state transitions (qT) and high energy state quenching (qE). The qE-deficient mutant npq4 produced more H2 O2 than wild-type cells under high light levels, although less so under high CO2 availability, whereas it demonstrated equal or greater enzymatic H2 O2 -degrading capacity. The qT-deficient mutant stt7-9 produced the same H2 O2 as wild-type cells under high CO2 availability. Physiological levels of H2 O2 were able to hinder qT and the induction of state 2, providing an explanation for why under high light levels and high CO2 availability wild-type cells behaved like stt7-9 cells stuck in state 1. © 2015 The Authors The Plant Journal © 2015 John Wiley & Sons Ltd.

  17. Building highly available control system applications with Advanced Telecom Computing Architecture and open standards

    Science.gov (United States)

    Kazakov, Artem; Furukawa, Kazuro

    2010-11-01

    Requirements for modern and future control systems for large projects like International Linear Collider demand high availability for control system components. Recently telecom industry came up with a great open hardware specification - Advanced Telecom Computing Architecture (ATCA). This specification is aimed for better reliability, availability and serviceability. Since its first market appearance in 2004, ATCA platform has shown tremendous growth and proved to be stable and well represented by a number of vendors. ATCA is an industry standard for highly available systems. On the other hand Service Availability Forum, a consortium of leading communications and computing companies, describes interaction between hardware and software. SAF defines a set of specifications such as Hardware Platform Interface, Application Interface Specification. SAF specifications provide extensive description of highly available systems, services and their interfaces. Originally aimed for telecom applications, these specifications can be used for accelerator controls software as well. This study describes benefits of using these specifications and their possible adoption to accelerator control systems. It is demonstrated how EPICS Redundant IOC was extended using Hardware Platform Interface specification, which made it possible to utilize benefits of the ATCA platform.

  18. Availability and Price of High Quality Day Care and Female Employment

    DEFF Research Database (Denmark)

    Simonsen, Marianne

    In this paper I analyse to what degree availability and price of high quality publicly subsidised childcare affects female employment for women living in couples following maternity leave. The results show that unrestricted access to day care has a significantly positive effct on female employment...

  19. Low nutrient availability reduces high-irradiance–induced viability loss inoceanic phytoplankton

    NARCIS (Netherlands)

    Kulk, G.; van de Poll, W.H.; Visser, R.J.W.; Buma, A.G.J.

    2013-01-01

    In situ viability of oceanic phytoplankton may be relatively low in open oceans. This is assumed to be related to the high-irradiance and low-nutrient conditions typical for oligotrophic regions. However, experimental evidence for this phenomenon was not yet available. In the present study, the impo

  20. A transfer technique for high mobility graphene devices on commercially available hexagonal boron nitride

    NARCIS (Netherlands)

    Zomer, P. J.; Dash, S. P.; Tombros, N.; van Wees, B. J.

    2011-01-01

    We present electronic transport measurements of single and bilayer graphene on commercially available hexagonal boron nitride. We extract mobilities as high as 125 000 cm(2) V-1 s(-1) at room temperature and 275 000 cm(2) V-1 s(-1) at 4.2 K. The excellent quality is supported by the early developmen

  1. High School Physics Availability: Results from the 2012-13 Nationwide Survey of High School Physics Teachers. Focus On

    Science.gov (United States)

    White, Susan; Tesfaye, Casey Langer

    2014-01-01

    In this report, the authors share their analysis of the data from over 3,500 high schools in the U.S. beginning with an examination of the availability of physics in U.S. high schools. The schools in their sample are a nationally-representative random sample of the almost 25,000 high schools in forty-nine of the fifty states. Table 1 shows the…

  2. Autonomic Middleware Services for Just-In-Time Grid Services Provisioning

    Directory of Open Access Journals (Sweden)

    Wail M. Omar

    2006-01-01

    Full Text Available The advent of widespread distributed computing environment, such as information systems and computational grids computing has enabled a new generation of applications that are based on seamless access, aggregation and interaction. The dramatic side of the story is a strong presence of the plea that those decentralized Grids are potentially affected by a number of primitives derived from their anatomy, in that, they are inherently large, complex, heterogeneous and dynamic, globally aggregating a large number of independent computing and communication resources. This has clearly exposed an essential exigency for a vital change to how these applications are developed and managed, which has motivated researchers to consider other techniques used by biological systems to deal with such problems. This is referred to as autonomic computing, which is defined by Ganek and Corbi[1] “… as a collection and integration of technologies that enable the creation of an information technology computing infrastructure for the next era of computing—e-business on demand …”. This study presents a computational model to support just-in-time and on-demand services for autonomic computing. Service reservation and job schedule systems are employed in this model to estimate the required services in advanced. Intelligent classification is utilized to cluster consumers into groups sharing the same behaviour and hence offer the required services for each consumer in advance, according to the group’s usage pattern of application services. To this end, a machine learning middleware service based on Self-Organizing Maps (SOM is designed, developed and implemented to carry out the intelligent classification for the autonomic computing. A case-study scenario of intelligent connected homes is demonstrated in this study to show the usability of such system.

  3. Performance Analysis of a Highly Available Home Agent in Mobile Networks

    Directory of Open Access Journals (Sweden)

    Abdelgadir T. Abdelgadir

    2011-01-01

    Full Text Available Problem statement: Network Mobility as a service is provided by the NEMO protocol in IPv6 environments. NEMO is an extension to MIPv6 and thus inherits the same reliability problems of MIPv6. MIPv6 is not reliable because the Home Agent (HA is a single point of failure. In order to provide real-time services for MIPv6 networks, reliability should be considered as part of any high availability solution used to deploy Mobile IPv6 networks. Approach: Many approaches have been taken to solve the problem of HA as a single point of failure. In our proposed solution, failure detection and recovery is handled by the home agent. Therefore, recovery is transparent to the mobile network. Results: In this study we opted for using HA redundancy to provide a highly available home agent solution which achieves recovery times suitable for real-time applications. Conclusion: The results show that achieving high availability in IPv6 based mobile networks which support NEMO is possible.

  4. Designing high availability systems DFSS and classical reliability techniques with practical real life examples

    CERN Document Server

    Taylor, Zachary

    2014-01-01

    A practical, step-by-step guide to designing world-class, high availability systems using both classical and DFSS reliability techniques Whether designing telecom, aerospace, automotive, medical, financial, or public safety systems, every engineer aims for the utmost reliability and availability in the systems he, or she, designs. But between the dream of world-class performance and reality falls the shadow of complexities that can bedevil even the most rigorous design process. While there are an array of robust predictive engineering tools, there has been no single-source guide to understan

  5. Context Sensing Middleware Based on Mobile Devices%MCSM:一种基于移动设备的上下文感知中间件

    Institute of Scientific and Technical Information of China (English)

    熊丽兵; 牛建伟; 张锦锋; 陈灿峰; 申雪萍

    2011-01-01

    提出一种针对移动设备的上下文感知中间件MCSM(Mobile Context Sensing Middleware).MCSM可以动态地感知当前移动设备的内外部计算环境及用户活动等上下文信息,并以统一的接口将感知到的上下文数据提供给上层应用程序.为了克服外部传感器数据的高异构性,MCSM采用了一种基于XML的上下文数据描述语言CDDL.基于MCSM的原型系统表明,MCSM具有良好的运行效率和可扩展性,并可显著提高上下文应用程序的开发效率.%A context-aware middleware, named MCSM (Mobile Context Sensing Middleware) is proposed based on mobile devices in this paper. MCSM can dynamically sense the device's current internal and external computing environment and the user's activities, and then provide such information to the upper application through a unified interface. In order to cope with the high dynamics of ex-ternal sensor data, an XML-based context data description language (CDDL) is applied by MCSM. A MCSM-based prototype sys-tem shows that MCSM has good running performance and scalability, and can significantly improve the efficiency in the development of context-aware applications as well.

  6. Availability and Price of High Quality Day Care and Female Employment

    DEFF Research Database (Denmark)

    Simonsen, Marianne

    In this paper I analyse to what degree availability and price of high quality publicly subsidised childcare affects female employment for women living in couples following maternity leave. The results show that unrestricted access to day care has a significantly positive effct on female employmen.......The price effect is significantly negative: An increase in the price of child care of C=1 will decrease the female employment with 0.08% corresponding to a price elasticity of −0.17. This effect prevails during the first 12 months after childbirth.......In this paper I analyse to what degree availability and price of high quality publicly subsidised childcare affects female employment for women living in couples following maternity leave. The results show that unrestricted access to day care has a significantly positive effct on female employment...

  7. Deeper snow alters soil nutrient availability and leaf nutrient status in high Arctic tundra

    DEFF Research Database (Denmark)

    Semenchuk, Philipp R.; Elberling, Bo; Amtorp, Cecilie

    2015-01-01

    Nitrogen (N) mineralization, nutrient availability, and plant growth in the Arctic are often restricted by low temperatures. Predicted increases of cold-season temperatures may be important for plant nutrient availability and growth, given that N mineralization is also taking place during the cold...... season. Changing nutrient availability may be reflected in plant N and chlorophyll content and lead to increased photosynthetic capacity, plant growth, and ultimately carbon (C) assimilation by plants. In this study, we increased snow depth and thereby cold-season soil temperatures in high Arctic...... for some species. Responses to cold-season soil warming are vegetation type- and species-specific, with potentially stronger responses in moister vegetation types. This study therefore highlights the contrasting effect of snow in a tundra landscape and has important implications for projections of whole...

  8. Research on the Development and Trends of RFID Middleware%RFID中间件发展与趋势研究

    Institute of Scientific and Technical Information of China (English)

    陈阳

    2015-01-01

    This paper describes the concepts and characteristics of RFID middleware, reviews the development of RFID middle-ware, analyzes RFID middleware products that are developed by domestic and foreign research institutions and corporations. This paper also gives an overview of the current research status and development trends of RFID middleware.%本文阐述了RFID中间件的概念、特点,回顾了RFID中间件的发展历程,分析了国内外科研机构及企业研发的RFID中间件产品,阐述了RFID中间件的研究现状与发展趋势。

  9. Particularity of the Distributed Component Interconnection in Control Engineering Tasks and Method for Wider Usage of the Middleware Technologies

    CERN Document Server

    Karev, A A; Dobrianski, V M

    2003-01-01

    In this paper the investigation of specific types of the component interconnection for distributed system in control engineering (nonstandard queries and dataflow types) was performed. Implementation methods, using primitive objects Java/RMI and CORBA middleware technologies, were prepared.

  10. Constellation Ground Systems Launch Availability Analysis: Enhancing Highly Reliable Launch Systems Design

    Science.gov (United States)

    Gernand, Jeffrey L.; Gillespie, Amanda M.; Monaghan, Mark W.; Cummings, Nicholas H.

    2010-01-01

    Success of the Constellation Program's lunar architecture requires successfully launching two vehicles, Ares I/Orion and Ares V/Altair, in a very limited time period. The reliability and maintainability of flight vehicles and ground systems must deliver a high probability of successfully launching the second vehicle in order to avoid wasting the on-orbit asset launched by the first vehicle. The Ground Operations Project determined which ground subsystems had the potential to affect the probability of the second launch and allocated quantitative availability requirements to these subsystems. The Ground Operations Project also developed a methodology to estimate subsystem reliability, availability and maintainability to ensure that ground subsystems complied with allocated launch availability and maintainability requirements. The verification analysis developed quantitative estimates of subsystem availability based on design documentation; testing results, and other information. Where appropriate, actual performance history was used for legacy subsystems or comparative components that will support Constellation. The results of the verification analysis will be used to verify compliance with requirements and to highlight design or performance shortcomings for further decision-making. This case study will discuss the subsystem requirements allocation process, describe the ground systems methodology for completing quantitative reliability, availability and maintainability analysis, and present findings and observation based on analysis leading to the Ground Systems Preliminary Design Review milestone.

  11. Stochastic Hybrid Systems Modeling and Middleware-enabled DDDAS for Next-generation US Air Force Systems

    Science.gov (United States)

    2017-03-30

    AFRL-AFOSR-VA-TR-2017-0075 Stochastic Hybrid Systems Modeling and Middleware-enabled DDDAS for Next-generation US Air Force Systems Aniruddha...release. Air Force Research Laboratory AF Office Of Scientific Research (AFOSR)/RTA2 4/6/2017https://livelink.ebs.afrl.af.mil/livelink/llisapi.dll a...Sep 2013 to 31 Dec 2016 4. TITLE AND SUBTITLE Stochastic Hybrid Systems Modeling and Middleware-enabled DDDAS for Next- generation US Air Force

  12. High availability through full redundancy of the CMS detector controls system

    CERN Document Server

    Bauer, Gerry; Bouffet, Olivier; Bowen, Matthew; Branson, James G; Bukowiec, Sebastian; Ciganek, Marek; Cittolin, Sergio; Jose Antonio Coarasa; Deldicque, Christian; Dobson, Marc; Dupont, Aymeric; Erhan, Samim; Flossdorf, Alexander; Gigi, Dominique; Glege, Frank; Gomez-Reino, Robert; Hartl, Christian; Hegeman, Jeroen; Holzner, André; Yi Ling Hwong; Masetti, Lorenzo; Meijers, Frans; Meschi, Emilio; Mommsen, Remigius K; O'Dell, Vivian; Orsini, Luciano; Paus, Christoph; Petrucci, Andrea; Pieri, Marco; Polese, Giovanni; Racz, Attila; Raginel, Olivier; Sakulin, Hannes; Sani, Matteo; Schwick, Christoph; Shpakov, Dennis; Simon, Michal; Andrei Cristian Spataru; Sumorok, Konstanty

    2012-01-01

    The CMS detector control system (DCS) is responsible for controlling and monitoring the detector status and for the operation of all CMS sub detectors and infrastructure. This is required to ensure safe and efficient data taking so that high quality physics data can be recorded. The current system architecture is composed of more than 100 servers in order to provide the required processing resources. An optimization of the system software and hardware architecture is under development to ensure redundancy of all the controlled sub-systems and to reduce any downtime due to hardware or software failures. The new optimized structure is based mainly on powerful and highly reliable blade servers and makes use of a fully redundant approach, guaranteeing high availability and reliability. The analysis of the requirements, the challenges, the improvements and the optimized system architecture as well as its specific hardware and software solutions are presented.

  13. Unusually high food availability in Kaikoura Canyon linked to distinct deep-sea nematode community

    Science.gov (United States)

    Leduc, D.; Rowden, A. A.; Nodder, S. D.; Berkenbusch, K.; Probert, P. K.; Hadfield, M. G.

    2014-06-01

    Kaikoura Canyon, on the eastern New Zealand continental margin, is the most productive, non-chemosynthetic deep-sea habitat described to date, with megafaunal biomass 100-fold higher than those of other deep-sea habitats. The present study, which focused on free-living nematodes, provides the first comparison of faunal community structure and diversity between Kaikoura Canyon and nearby open slope habitats. Results show substantially higher food availability in the canyon relative to open slope sediments, which probably reflects greater levels of primary productivity above the canyon, coupled with downwelling and/or topographically-induced channelling, which serves to concentrate surface-derived organic matter along the canyon axis. This high food availability appears to be responsible for the elevated nematode biomass in Kaikoura Canyon, with values exceeding all published nematode biomass data from canyons elsewhere. There was also markedly lower local species diversity of nematodes inside the canyon relative to the open slope habitat, as well as a distinct community structure. The canyon community was dominated by species, such as Sabateria pulchra, which were absent from the open slope and are typically associated with highly eutrophic and/or disturbed environments. The presence of these taxa, as well as the low observed diversity, is likely to reflect the high food availability, and potentially the high levels of physically and biologically induced disturbance within the canyon. Kaikoura Canyon is a relatively small habitat characterised by different environmental conditions that makes a disproportionate contribution to deep-sea diversity in the region, despite its low species richness.

  14. Innovative use of controlled availability fertilizers with high performance for intensive agriculture and environmental conservation

    Institute of Scientific and Technical Information of China (English)

    Sadao SHOJI

    2005-01-01

    A variety of slow release fertilizers, controlled release (availability) fertilizers (CAFs),and stability fertilizers have been developed in response to the serious drawbacks of the conventional fertilizers since the early 1960's. Of these fertilizers, CAFs which are coated with resin are consumed in the largest quantity in the world. Selecting CAFs with higher performance, the author will discuss about: 1) Innovation of agro-technologies for various field crops including new concepts of fertilizer application, 2) high yielding of field crops, 3) enhancing quality and safety of farm products, and 4) controlling the adverse effect of intensive agriculture on the environment.

  15. Availability and cost estimate of a high naphthene, modified aviation turbine fuel

    Science.gov (United States)

    Prok, George M.

    1988-01-01

    Information from an Air Force study was used to determine the potential availability and cost of a modified conventional fuel with a naphthene content which could have a thermal stability near that of JP-7 for high-speed civil transports. Results showed sufficient capacity for a fuel made of a blend of 50 percent naphthenic straight run kerosene and 50 percent hydrocracked product, assuming a near-term requirement of 210,000 BBL per day. Fuel cost would be as low as 62.5 to 64.5 cents per gallon, assuming 20 dollars per barrel for crude.

  16. A Middleware Approach to Achieving Fault Tolerance of Kahn Process Networks on Networks on Chips

    Directory of Open Access Journals (Sweden)

    Onur Derin

    2011-01-01

    propose a task-aware middleware concept that allows adaptivity in KPN implemented over a Network on Chip (NoC. We also list our ideas on the development of a simulation platform as an initial step towards creating fault tolerance strategies for KPNs applications running on NoCs. In doing that, we extend our SACRE (Self-Adaptive Component Run Time Environment framework by integrating it with an open source NoC simulator, Noxim. We evaluate the overhead that the middleware brings to the the total execution time and to the total amount of data transferred in the NoC. With this work, we also provide a methodology that can help in identifying the requirements and implementing fault tolerance and adaptivity support on real platforms.

  17. A Middleware-based Distributed Management Framework for Next-generation Network

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    As the basis for next-generation application middleware, distributed computing technique is increasingly used in the network management to fulfill the integration of diverse management systems. Furthermore Web technology is widely used in interaction friendly with user. This article puts forward a MNMI (Middleware-based Network Management Integration) framework in the domain of the management of IPv6 test bed-NSFCNET (National Natural Science Foundation of China Network). The framework uses a logically-layers method from user interface to managers and pseudo-agent, which uses distributed management and groups managed objects to retrieve, and thus it has assured the performance of network management by providing multiple object quick access.

  18. [Service Middleware of Medical Information Integration and Exchange Based on HL7 and DICOM].

    Science.gov (United States)

    Huang, Mian; Liu, Lijun; Xiong, Xin; Fan, Hongbo; Jia, Lianyin; Tang, Shouguo

    2015-08-01

    Medical information exchange and integration is the effective method to solve the interoperability and medical information island, and is the basis of medical information sharing. In this paper, we take medical texts and medical images as the basic integrated objects, DICOM, HL7 messages and datasets as the integrated units, efficient DI-COM, HL7 message construction and parsing methods as basis, design and realize a universal medical information integration and exchange service middleware. Experimental results show that the prototype system could perform medical information integration and exchange among relational database, HL7 and DICOM message, provide a feasible scheme to solve the medical information island and lay a good foundation for establishing the unified medical information integration and sharing platform. The middleware has been applied in the project named "development and demonstration of opened medical information integration system".

  19. The Open Source DataTurbine Initiative: Streaming Data Middleware for Environmental Observing Systems

    Science.gov (United States)

    Fountain T.; Tilak, S.; Shin, P.; Hubbard, P.; Freudinger, L.

    2009-01-01

    The Open Source DataTurbine Initiative is an international community of scientists and engineers sharing a common interest in real-time streaming data middleware and applications. The technology base of the OSDT Initiative is the DataTurbine open source middleware. Key applications of DataTurbine include coral reef monitoring, lake monitoring and limnology, biodiversity and animal tracking, structural health monitoring and earthquake engineering, airborne environmental monitoring, and environmental sustainability. DataTurbine software emerged as a commercial product in the 1990 s from collaborations between NASA and private industry. In October 2007, a grant from the USA National Science Foundation (NSF) Office of Cyberinfrastructure allowed us to transition DataTurbine from a proprietary software product into an open source software initiative. This paper describes the DataTurbine software and highlights key applications in environmental monitoring.

  20. High-frequency nutrient monitoring to infer seasonal patterns in catchment source availability, mobilisation and delivery.

    Science.gov (United States)

    Bende-Michl, Ulrike; Verburg, Kirsten; Cresswell, Hamish P

    2013-11-01

    To explore the value of high-frequency monitoring to characterise and explain riverine nutrient concentration dynamics, total phosphorus (TP), reactive phosphorus (RP), ammonium (NH4-N) and nitrate (NO3-N) concentrations were measured hourly over a 2-year period in the Duck River, in north-western Tasmania, Australia, draining a 369-km(2) mixed land use catchment area. River discharge was observed at the same location and frequency, spanning a wide range of hydrological conditions. Nutrient concentrations changed rapidly and were higher than previously observed. Maximum nutrient concentrations were 2,577 μg L(-1) TP, 1,572 μg L(-1) RP, 972 μg L(-1) NH₄-N and 1,983 μg L(-1) NO₃-N, respectively. Different nutrient response patterns were evident at seasonal, individual event and diurnal time scales-patterns that had gone largely undetected in previous less frequent water quality sampling. Interpretation of these patterns in terms of nutrient source availability, mobilisation and delivery to the stream allowed the development of a conceptual model of catchment nutrient dynamics. Functional stages of nutrient release were identified for the Duck River catchment and were supported by a cluster analysis which confirmed the similarities and differences in nutrient responses caused by the sequence of hydrologic events: (1) a build-up of nutrients during periods with low hydrologic activity, (2) flushing of readily available nutrient sources at the onset of the high flow period, followed by (3) a switch from transport to supply limitation, (4) the accessibility of new nutrient sources with increasing catchment wetness and hydrologic connectivity and (5) high nutrient spikes occurring when new sources become available that are easily mobilised with quickly re-established hydrologic connectivity. Diurnal variations that could be influenced by riverine processes and/or localised point sources were also identified as part of stage (1) and during late recession of some of

  1. Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

    Science.gov (United States)

    Kocis, Tiffany N.; Dahlke, Helen E.

    2017-08-01

    California’s climate is characterized by the largest precipitation and streamflow variability observed within the conterminous US This, combined with chronic groundwater overdraft of 0.6-3.5 km3 yr-1, creates the need to identify additional surface water sources available for groundwater recharge using methods such as agricultural groundwater banking, aquifer storage and recovery, and spreading basins. High-magnitude streamflow, i.e. flow above the 90th percentile, that exceeds environmental flow requirements and current surface water allocations under California water rights, could be a viable source of surface water for groundwater banking. Here, we present a comprehensive analysis of the magnitude, frequency, duration and timing of high-magnitude streamflow (HMF) for 93 stream gauges covering the Sacramento, San Joaquin and Tulare basins in California. The results show that in an average year with HMF approximately 3.2 km3 of high-magnitude flow is exported from the entire Central Valley to the Sacramento-San Joaquin Delta often at times when environmental flow requirements of the Delta and major rivers are exceeded. High-magnitude flow occurs, on average, during 7 and 4.7 out of 10 years in the Sacramento River and the San Joaquin-Tulare Basins, respectively, from just a few storm events (5-7 1-day peak events) lasting for 25-30 days between November and April. The results suggest that there is sufficient unmanaged surface water physically available to mitigate long-term groundwater overdraft in the Central Valley.

  2. The Importance, Design and Implementation of a Middleware for Networked Control Systems

    OpenAIRE

    Kim, Kyoung-Dae; Kumar, P.R.

    2009-01-01

    Due to the advancement of computing and communication technology, networked control systems may soon become prevalent in many control applications. While the capability of employing the communication network in the control loop certainly provides many benefits, it also raises several challenges which need to be overcome to utilize the benefits. In this chapter, we focus on one major challenge: a middleware framework that enables a networked control system to be implemented. Indeed our thesis ...

  3. Development Tools for Context Aware and Secure Pervasive Computing in Embedded Systems (PECES) Middleware

    OpenAIRE

    Ran Zhao; Kirusnapillai Selvarajah; Neil Speirs

    2013-01-01

    The main objective of the PECES project is the development of system software to enable the communication among heterogeneous devices across multiple smart spaces, breaking the traditional barrier of “smart islands” where only the services offered in a nearby spatial area can be used easily. PECES development tools help the application developer to build and test the PECES middleware based applications. This paper presents a set of tools, namely Peces Project, Peces Device Definit...

  4. Impact of mobility on Message Oriented Middleware (MOM) protocols for collaboration in transportation

    OpenAIRE

    LUZURIAGA QUICHIMBO, JORGE ELOY; Pérez, Miguel; Boronat, Pablo; Cano Escribá, Juan Carlos; Tavares De Araujo Cesariny Calafate, Carlos Miguel; Manzoni ., Pietro

    2015-01-01

    © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Message Oriented Middleware (MOM) refers to the software infrastructure that support ubiquitous information...

  5. Multi-Source Data Processing Middleware for Land Monitoring within a Web-Based Spatial Data Infrastructure for Siberia

    Directory of Open Access Journals (Sweden)

    Christiane Schmullius

    2013-06-01

    Full Text Available Land monitoring is a key issue in Earth system sciences to study environmental changes. To generate knowledge about change, e.g., to decrease uncertaincy in the results and build confidence in land change monitoring, multiple information sources are needed. Earth observation (EO satellites and in situ measurements are available for operational monitoring of the land surface. As the availability of well-prepared geospatial time-series data for environmental research is limited, user-dependent processing steps with respect to the data source and formats pose additional challenges. In most cases, it is possible to support science with spatial data infrastructures (SDI and services to provide such data in a processed format. A data processing middleware is proposed as a technical solution to improve interdisciplinary research using multi-source time-series data and standardized data acquisition, pre-processing, updating and analyses. This solution is being implemented within the Siberian Earth System Science Cluster (SIB-ESS-C, which combines various sources of EO data, climate data and analytical tools. The development of this SDI is based on the definition of automated and on-demand tools for data searching, ordering and processing, implemented along with standard-compliant web services. These tools, consisting of a user-friendly download, analysis and interpretation infrastructure, are available within SIB-ESS-C for operational use.

  6. Sexually transmitted infections treatment and care available to high risk populations in Pakistan.

    Science.gov (United States)

    Rahimtoola, Minal; Hussain, Hamidah; Khowaja, Saira N; Khan, Aamir J

    2008-01-01

    Limited literature exists on the quality and availability of treatment and care of sexually transmitted infections (STIs) in Pakistan. This article aims to document existing services for the care and treatment of STIs available in Pakistan's public and private sectors to high risk groups (HRG), particularly the transgendered population. We conducted a cross-sectional survey to document STI services in Lahore, Karachi, Rawalpindi, Peshawar, and Quetta. Seventy-three interviews were administered with health service providers at the 3 largest public sector hospitals in each city, as well as with general physicians and traditional healers in the private sector. Twenty-five nongovernmental organizations (NGO) providing STI services were also interviewed. Fewer than 45% of private and public sector general practitioners had been trained in STI treatment after the completion of their medical curriculum, and none of the traditional healers had received any formal training or information on STIs. The World Health Organization (WHO) syndromic management guidelines were followed for STI management by 29% of public and private sector doctors and 5% of traditional healers. STI drugs were available at no cost at 44% of NGOs and at some public sector hospitals. Our findings show that although providers do treat HRGs for STIs, there are significant limitations in their ability to provide these services. These deterrents include, but are not limited to, a lack of STI training of service providers, privacy and adherence to recommended WHO syndromic management guidelines, and costly diagnostic and consultation fees.

  7. JOSHUA: Symmetric Active/Active Replication for Highly Available HPC Job and Resource Management

    Energy Technology Data Exchange (ETDEWEB)

    Uhlemann, Kai [ORNL; Engelmann, Christian [ORNL; Scott, Steven L [ORNL

    2006-01-01

    Most of today's HPC systems employ a single head node for control, which represents a single point of failure as it interrupts an entire HPC system upon failure. Furthermore, it is also a single point of control as it disables an entire HPC system until repair. One of the most important HPC system service running on the head node is the job and resource management. If it goes down, all currently running jobs loose the service they report back to. They have to be restarted once the head node is up and running again. With this paper, we present a generic approach for providing symmetric active/active replication for highly available HPC job and resource management. The JOSHUA solution provides a virtually synchronous environment for continuous availability without any interruption of service and without any loss of state. Replication is performed externally via the PBS service interface without the need to modify any service code. Test results as well as a reliability analysis of our proof-of-concept prototype implementation show that continuous availability can be provided by JOSHUA with an acceptable performance trade-off.

  8. Applying Reflective Middleware Techniques to Optimize a QoS-enabled CORBA Component Model Implementation

    Science.gov (United States)

    Wang, Nanbor; Parameswaran, Kirthika; Kircher, Michael; Schmidt, Douglas

    2003-01-01

    Although existing CORBA specifications, such as Real-time CORBA and CORBA Messaging, address many end-to-end quality-of service (QoS) properties, they do not define strategies for configuring these properties into applications flexibly, transparently, and adaptively. Therefore, application developers must make these configuration decisions manually and explicitly, which is tedious, error-prone, and open sub-optimal. Although the recently adopted CORBA Component Model (CCM) does define a standard configuration framework for packaging and deploying software components, conventional CCM implementations focus on functionality rather than adaptive quality-of-service, which makes them unsuitable for next-generation applications with demanding QoS requirements. This paper presents three contributions to the study of middleware for QoS-enabled component-based applications. It outlines rejective middleware techniques designed to adaptively (1) select optimal communication mechanisms, (2) manage QoS properties of CORBA components in their contain- ers, and (3) (re)con$gure selected component executors dynamically. Based on our ongoing research on CORBA and the CCM, we believe the application of rejective techniques to component middleware will provide a dynamically adaptive and (re)configurable framework for COTS software that is well-suited for the QoS demands of next-generation applications.

  9. Distributed Data Service for Data Management in Internet of Things Middleware

    Science.gov (United States)

    Cruz Huacarpuma, Ruben; de Sousa Junior, Rafael Timoteo; de Holanda, Maristela Terto; de Oliveira Albuquerque, Robson; García Villalba, Luis Javier; Kim, Tai-Hoon

    2017-01-01

    The development of the Internet of Things (IoT) is closely related to a considerable increase in the number and variety of devices connected to the Internet. Sensors have become a regular component of our environment, as well as smart phones and other devices that continuously collect data about our lives even without our intervention. With such connected devices, a broad range of applications has been developed and deployed, including those dealing with massive volumes of data. In this paper, we introduce a Distributed Data Service (DDS) to collect and process data for IoT environments. One central goal of this DDS is to enable multiple and distinct IoT middleware systems to share common data services from a loosely-coupled provider. In this context, we propose a new specification of functionalities for a DDS and the conception of the corresponding techniques for collecting, filtering and storing data conveniently and efficiently in this environment. Another contribution is a data aggregation component that is proposed to support efficient real-time data querying. To validate its data collecting and querying functionalities and performance, the proposed DDS is evaluated in two case studies regarding a simulated smart home system, the first case devoted to evaluating data collection and aggregation when the DDS is interacting with the UIoT middleware, and the second aimed at comparing the DDS data collection with this same functionality implemented within the Kaa middleware. PMID:28448469

  10. A Grid Middleware for Distributed Java Computing with MPI Binding and Process Migration Supports

    Institute of Scientific and Technical Information of China (English)

    CHEN Lin(陈琳); WANG ChoLi(王卓立); Francis C.M.Lau

    2003-01-01

    "Grid" computing has emerged as an important new research field. With years of efforts, grid researchers have successfully developed grid technologies including security solutions,resource management protocols, information query protocols, and data management services. However, as the ultimate goal of grid computing is to design an infrastructure which supports dynamic,cross-organizational resource sharing, there is a need of solutions for efficient and transparent task re-scheduling in the grid.In this research, a new grid middleware is proposed, called G-JavaMPI. This middleware adds the parallel computing capability of Java to the grid with the support of a Grid-enabled message passing interface (MPI) for inter-process communication between Java processes executed at different grid points. A special feature of the proposed G-JavaMPI is the support of Java process migration with post-migration message redirection. With these supports, it is possible to migrate executing Java process from site to site for continuous computation, if some site is scheduled to be turned down for system reconfiguration. Moreover, the proposed G-JavaMPI middleware is very portable since it requires no modification of underlying OS, Java virtual machine, and MPI package. Preliminary performance tests have been conducted. The proposed mechanisms have shown good migration efficiency in a simulated grid environment.

  11. Distributed Data Service for Data Management in Internet of Things Middleware.

    Science.gov (United States)

    Cruz Huacarpuma, Ruben; de Sousa Junior, Rafael Timoteo; de Holanda, Maristela Terto; de Oliveira Albuquerque, Robson; García Villalba, Luis Javier; Kim, Tai-Hoon

    2017-04-27

    The development of the Internet of Things (IoT) is closely related to a considerable increase in the number and variety of devices connected to the Internet. Sensors have become a regular component of our environment, as well as smart phones and other devices that continuously collect data about our lives even without our intervention. With such connected devices, a broad range of applications has been developed and deployed, including those dealing with massive volumes of data. In this paper, we introduce a Distributed Data Service (DDS) to collect and process data for IoT environments. One central goal of this DDS is to enable multiple and distinct IoT middleware systems to share common data services from a loosely-coupled provider. In this context, we propose a new specification of functionalities for a DDS and the conception of the corresponding techniques for collecting, filtering and storing data conveniently and efficiently in this environment. Another contribution is a data aggregation component that is proposed to support efficient real-time data querying. To validate its data collecting and querying functionalities and performance, the proposed DDS is evaluated in two case studies regarding a simulated smart home system, the first case devoted to evaluating data collection and aggregation when the DDS is interacting with the UIoT middleware, and the second aimed at comparing the DDS data collection with this same functionality implemented within the Kaa middleware.

  12. A collaborative network middleware project by Lambda Station, TeraPaths, and Phoebus

    Energy Technology Data Exchange (ETDEWEB)

    Bobyshev, A.; /Fermilab; Bradley, S.; /Brookhaven; Crawford, M.; /Fermilab; DeMar, P.; /Fermilab; Katramatos, D.; /Brookhaven; Shroff, K.; /Brookhaven; Swany, M.; /Delaware U.; Yu, D.; /Brookhaven

    2010-01-01

    The TeraPaths, Lambda Station, and Phoebus projects, funded by the US Department of Energy, have successfully developed network middleware services that establish on-demand and manage true end-to-end, Quality-of-Service (QoS) aware, virtual network paths across multiple administrative network domains, select network paths and gracefully reroute traffic over these dynamic paths, and streamline traffic between packet and circuit networks using transparent gateways. These services improve network QoS and performance for applications, playing a critical role in the effective use of emerging dynamic circuit network services. They provide interfaces to applications, such as dCache SRM, translate network service requests into network device configurations, and coordinate with each other to setup up end-to-end network paths. The End Site Control Plane Subsystem (ESCPS) builds upon the success of the three projects by combining their individual capabilities into the next generation of network middleware. ESCPS addresses challenges such as cross-domain control plane signalling and interoperability, authentication and authorization in a Grid environment, topology discovery, and dynamic status tracking. The new network middleware will take full advantage of the perfSONAR monitoring infrastructure and the Inter-Domain Control plane efforts and will be deployed and fully vetted in the Large Hadron Collider data movement environment.

  13. Use of Service Middleware Based on ECHO with CSW for Discovery and Registry of MODIS Data

    Institute of Scientific and Technical Information of China (English)

    CHEN Zeqiang; CHEN Nengcheng

    2010-01-01

    Nowadays, NASA is producing several terabytes Moderate Resolution Imaging Spectroradiometer (MODIS) data everyday; how to find the data with criteria, such as specific times, locations, and scales using an international standard becomes more and more important. In this paper, a service-oriented architecture for use of the integration Earth Observation System ClearingHOuse (ECHO) with the Open Geospatial Consortium (OGC) Catalogue Service-Web profile (CSW) is put forward. The architecture consists of three roles: a service requester (the user), a service provider (the ECHO metadata server), and a service broker (the GeoNetwork CSW and MODIS registry service middleware). The core component-MODIS registry service middleware includes three components: metadata fetcher, metadata transformer, and metadata register. The metadata fetcher is used to fetch metadata from ECHO metadata server; the metadata transformer is responsible for transform metadata from one form to another;the metadata register is in charge'of registering ISO19139-based metadata to CSW. A prototype system is designed and implemented by using the service middleware technology and a standard interface and protocol. The feasibility and the response time of registry and retrieval of MODIS data are evaluated by means of a realistic LPDAAC_ECS MODIS data center. The implementation of this prototype system and the experiment show that the architecture and method is feasible and effective.

  14. 消息中间件的排队论模型研究%Study on the Queuing Model of the Message-Oriented Middleware

    Institute of Scientific and Technical Information of China (English)

    周世杰; 秦志光; 刘锦德

    2002-01-01

    The general concepts in message queuing and message-oriented middleware(MOM) are discussed. The essential elements and model of the queuing theory are analyzed in detail. Then, after puting forward and analyzing the basic formulas of the queuing theory, the applicable model for message queue middleware is probed into. Some important formulas used in the designing of the message queue middleware are also elucidated. Finally, a case of designing the message queue middleware adopting queuing model we put forward, which is used in the freeway toll system of ITS, is studied.

  15. High sensitivity of broadleaf trees to water availability in northeastern United States

    Science.gov (United States)

    Levesque, Mathieu; Andreu-Hayles, Laia; Pederson, Neil

    2016-04-01

    Broadleaf dominated forests of eastern US cover more than one million km2 and provide ecosystem services to millions of people. High species diversity and a varied sensitivity to drought make it uncertain whether these forests will be carbon sinks or sources under climate change. Ongoing climate change, increased in atmospheric CO2 concentration (ca) and strong reductions in acidic depositions are expected to alter growth and gas exchange of trees, and ultimately forest productivity. Still, the magnitude of these effects is unclear. A better comprehension of the species-specific responses to environmental changes will better inform models and managers on the vulnerability and resiliency of these forests. Here, we combined tree-ring width data with δ13C and δ18O measurements to investigate growth and physiological responses of red oak (Quercus rubra L.) and tulip poplar (Liriodendron tulipifera L.) in northeastern US to changes in water availability, ca and acidic depositions for the period 1950-2014. Based on structural equation modeling approaches, we found that summer water availability (June-August) is the main environmental variable driving growth, water-use efficiency and δ18O of broadleaf trees whereas ca and acidic depositions have little effects. This high sensitivity to moisture availability was also supported by the very strong correlations found between summer vapor pressure deficit (VPD) and tree-ring δ13C (r = 0.67 and 0.71), and δ18O series (r = 0.62 and 0.72), for red oak and tulip poplar, respectively. In contrast, tree-ring width was less sensitive to summer VPD (r = -0.44 and-0.31). Since the mid 1980s, pluvial conditions occurring in northeastern US have increased stomatal conductance, carbon uptake, and growth of both species. Further, the strong spatial field correlations found between the tree-ring δ13C and δ18O and summer VPD indicate a greater sensitivity of eastern US broadleaf forests to moisture availability than previously known

  16. Experience and Lessons learnt from running high availability databases on Network Attached Storage

    CERN Document Server

    Guijarro, Juan Manuel; Segura Chinchilla, Nilo

    2008-01-01

    The Database and Engineering Services Group of CERN's Information Technology Department provides the Oracle based Central Data Base services used in many activities at CERN. In order to provide High Availability and ease management for those services, a NAS (Network Attached Storage) based infrastructure has been set up. It runs several instances of the Oracle RAC (Real Application Cluster) using NFS as share disk space for RAC purposes and Data hosting. It is composed of two private LAN's to provide access to the NAS file servers and Oracle RAC interconnect, both using network bonding. NAS nodes are configured in partnership to prevent having single points of failure and to provide automatic NAS fail-over. This presentation describes that infrastructure and gives some advice on how to automate its management and setup using a Fabric Management framework such as Quattor. It also covers aspects related with NAS Performance and Monitoring as well Data Backup and Archive of such facility using already existing i...

  17. Experience and Lessons learnt from running High Availability Databases on Network Attached Storage

    CERN Document Server

    Guijarro, Manuel

    2008-01-01

    The Database and Engineering Services Group of CERN's Information Technology Department supplies the Oracle Central Database services used in many activities at CERN. In order to provide High Availability and ease management for those services, a NAS (Network Attached Storage) based infrastructure has been setup. It runs several instances of the Oracle RAC (Real Application Cluster) using NFS (Network File System) as shared disk space for RAC purposes and Data hosting. It is composed of two private LANs (Local Area Network), one to provide access to the NAS filers and a second to implement the Oracle RAC private interconnect, both using Network Bonding. NAS filers are configured in partnership to prevent having single points of failure and to provide automatic NAS filer fail-over.

  18. CMS experience of running glideinWMS in High Availability mode

    CERN Document Server

    Sfiligoi, Igor; Belforte, Stefano; Mc Crea, Alison Jean; Larson, Krista Elaine; Zvada, Marian; Holzman, Burt; P Mhashilkar; Bradley, Daniel Charles; Saiz Santos, Maria Dolores; Fanzago, Federica; Gutsche, Oliver; Martin, Terrence; Wuerthwein, Frank Karl

    2013-01-01

    The CMS experiment at the Large Hadron Collider is relying on the HTCondor-based glideinWMS batch system to handle most of its distributed computing needs. In order to minimize the risk of disruptions due to software and hardware problems, and also to simplify the maintenance procedures, CMS has set up its glideinWMS instance to use most of the attainable High Availability (HA) features. The setup involves running services distributed over multiple nodes, which in turn are located in several physical locations, including Geneva, Switzerland, Chicago, Illinois and San Diego, California. This paper describes the setup used by CMS, the HA limits of this setup, as well as a description of the actual operational experience spanning many months.

  19. Low-Cost Solutions Using the Infrastructure as a Service with High Availability and Virtualization Model

    Directory of Open Access Journals (Sweden)

    Cesar Armando Moreira Zambrano

    2017-02-01

    Full Text Available This paper presents the results obtained from the implementation of an infrastructure to improve technological services of email, virtual learning environment, digital repository and virtual library at the Polytechnic Agricultural Higher School of Manabí (Polytechnic School of Agriculture of Manabí, ESPAM, through the use of high availability and virtualization mechanisms to provide more reliable resources. Virtualization is an empowering and cutting-edge technology that is transforming the operation of technological services, but it involves a paradigm shift in serviceoriented information technologies and cloud computing. To execute each of the processes the V-cycle methodology was used as a strategy. Virtualization services empowers companies and institutions by transforming how they operate to be at the forefront of innovation in their services as a technological solution. So the implementation of redundant technology in the ESPAM, has allowed its technological services are always operative, for the benefit of the university community, because if there were failures in the main system or services, the backups will be enabled quickly allowing the systems come into operation immediately.

  20. Implementasi Cloud Storage Menggunakan OwnCloud yang High-Availability

    Directory of Open Access Journals (Sweden)

    Ikhwan Ar-Razy

    2016-04-01

    Full Text Available Implementation of practicum courses in Department of Computer Engineering Diponegoro University has some drawbacks, one of them is a lot of lab assistant and the practitioner experiencing difficulties in terms of archiving. One solution to solve the problem is implementing a shared file storage system that is easy and can be accessed by both practitioners or lab assistants. The purpose of this research is to build a cloud-based storage systems that are reliable to preventing crash damage hardware and high availability. The purpose of this research is achieved by designing the appropriate methodology. The result of this research is a storage system that is on the server side by using virtualization and data replication (DRBD as a storage method. The system is composed of two physical servers and one virtual server. Physical servers are using Proxmox VE as operating system and virtual server is using Ubuntu Server as operating system. OwnCloud applications and files are stored in the virtual server. File storage system has several major functions, which are: upload, download, user management, remove, and restore. The functions are executed through web pages, desktop application and Android application.

  1. A software and hardware architecture for a high-availability PACS.

    Science.gov (United States)

    Gutiérrez-Martínez, Josefina; Núñez-Gaona, Marco Antonio; Aguirre-Meneses, Heriberto; Delgado-Esquerra, Ruth Evelin

    2012-08-01

    Increasing radiology studies has led to the emergence of new requirements for management medical information, mainly affecting the storage of digital images. Today, it is a necessary interaction between workflow management and legal rules that govern it, to allow an efficient control of medical technology and associated costs. Another important topic that is growing in importance within the healthcare sector is compliance, which includes the retention of studies, information security, and patient privacy. Previously, we conducted a series of extensive analysis and measurements of pre-existing operating conditions. These studies and projects have been described in other papers. The first phase: hardware and software installation and initial tests were completed in March 2006. The storage phase was built step by step until the PACS-INR was totally completed. Two important aspects were considered in the integration of components: (1) the reliability and performance of the system to transfer and display DICOM images, and (2) the availability of data backups for disaster recovery and downtime scenarios. This paper describes the high-availability model for a large-scale PACS to support the storage and retrieve of data using CAS and DAS technologies to provide an open storage platform. This solution offers a simple framework that integrates and automates the information at low cost and minimum risk. Likewise, the model allows an optimized use of the information infrastructure in the clinical environment. The tests of the model include massive data migration, openness, scalability, and standard compatibility to avoid locking data into a proprietary technology.

  2. ArcticDEM; A Publically Available, High Resolution Elevation Model of the Arctic

    Science.gov (United States)

    Morin, Paul; Porter, Claire; Cloutier, Michael; Howat, Ian; Noh, Myoung-Jong; Willis, Michael; Bates, Brian; Willamson, Cathleen; Peterman, Kennith

    2016-04-01

    A Digital Elevation Model (DEM) of the Arctic is needed for a large number of reasons, including: measuring and understanding rapid, ongoing changes to the Arctic landscape resulting from climate change and human use and mitigation and adaptation planning for Arctic communities. The topography of the Arctic is more poorly mapped than most other regions of Earth due to logistical costs and the limits of satellite missions with low-latitude inclinations. A convergence of civilian, high-quality sub-meter stereo imagery; petascale computing and open source photogrammetry software has made it possible to produce a complete, very high resolution (2 to 8-meter posting), elevation model of the Arctic. A partnership between the US National Geospatial-intelligence Agency and a team led by the US National Science Foundation funded Polar Geospatial Center is using stereo imagery from DigitalGlobe's Worldview-1, 2 and 3 satellites and the Ohio State University's Surface Extraction with TIN-based Search-space Minimization (SETSM) software running on the University of Illinois's Blue Water supercomputer to address this challenge. The final product will be a seemless, 2-m posting digital surface model mosaic of the entire Arctic above 60 North including all of Alaska, Greenland and Kamchatka. We will also make available the more than 300,000 individual time-stamped DSM strip pairs that were used to assemble the mosaic. The Arctic DEM will have a vertical precision of better than 0.5m and can be used to examine changes in land surfaces such as those caused by permafrost degradation or the evolution of arctic rivers and floodplains. The data set can also be used to highlight changing geomorphology due to Earth surface mass transport processes occurring in active volcanic and glacial environments. When complete the ArcticDEM will catapult the Arctic from the worst to among the best mapped regions on Earth.

  3. Computational Environments and Analysis methods available on the NCI High Performance Computing (HPC) and High Performance Data (HPD) Platform

    Science.gov (United States)

    Evans, B. J. K.; Foster, C.; Minchin, S. A.; Pugh, T.; Lewis, A.; Wyborn, L. A.; Evans, B. J.; Uhlherr, A.

    2014-12-01

    The National Computational Infrastructure (NCI) has established a powerful in-situ computational environment to enable both high performance computing and data-intensive science across a wide spectrum of national environmental data collections - in particular climate, observational data and geoscientific assets. This paper examines 1) the computational environments that supports the modelling and data processing pipelines, 2) the analysis environments and methods to support data analysis, and 3) the progress in addressing harmonisation of the underlying data collections for future transdisciplinary research that enable accurate climate projections. NCI makes available 10+ PB major data collections from both the government and research sectors based on six themes: 1) weather, climate, and earth system science model simulations, 2) marine and earth observations, 3) geosciences, 4) terrestrial ecosystems, 5) water and hydrology, and 6) astronomy, social and biosciences. Collectively they span the lithosphere, crust, biosphere, hydrosphere, troposphere, and stratosphere. The data is largely sourced from NCI's partners (which include the custodians of many of the national scientific records), major research communities, and collaborating overseas organisations. The data is accessible within an integrated HPC-HPD environment - a 1.2 PFlop supercomputer (Raijin), a HPC class 3000 core OpenStack cloud system and several highly connected large scale and high-bandwidth Lustre filesystems. This computational environment supports a catalogue of integrated reusable software and workflows from earth system and ecosystem modelling, weather research, satellite and other observed data processing and analysis. To enable transdisciplinary research on this scale, data needs to be harmonised so that researchers can readily apply techniques and software across the corpus of data available and not be constrained to work within artificial disciplinary boundaries. Future challenges will

  4. Central noradrenaline transporter availability in highly obese, non-depressed individuals

    Energy Technology Data Exchange (ETDEWEB)

    Hesse, Swen; Sabri, Osama [University of Leipzig, Department of Nuclear Medicine, Leipzig (Germany); Leipzig University Medical Centre, Integrated Treatment and Research Centre (IFB) Adiposity Diseases, Leipzig (Germany); Becker, Georg-Alexander; Bresch, Anke; Luthardt, Julia; Patt, Marianne; Meyer, Philipp M. [University of Leipzig, Department of Nuclear Medicine, Leipzig (Germany); Rullmann, Michael [University of Leipzig, Department of Nuclear Medicine, Leipzig (Germany); Leipzig University Medical Centre, Integrated Treatment and Research Centre (IFB) Adiposity Diseases, Leipzig (Germany); Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig (Germany); Hankir, Mohammed K.; Zientek, Franziska; Reissig, Georg; Fenske, Wiebke K. [Leipzig University Medical Centre, Integrated Treatment and Research Centre (IFB) Adiposity Diseases, Leipzig (Germany); Arelin, Katrin [Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig (Germany); University of Leipzig, Day Clinic for Cognitive Neurology, Leipzig (Germany); Lobsien, Donald [University of Leipzig, Department of Neuroradiology, Leipzig (Germany); Mueller, Ulrich [University of Cambridge, Department of Psychiatry and Behavioural and Clinical Neuroscience Institute, Cambridge (United Kingdom); Baldofski, S.; Hilbert, Anja [Leipzig University Medical Centre, Integrated Treatment and Research Centre (IFB) Adiposity Diseases, Leipzig (Germany); University of Leipzig, Department of Medical Psychology and Medical Sociology, Leipzig (Germany); Blueher, Matthias [University of Leipzig, Department of Internal Medicine, Leipzig (Germany); Fasshauer, Mathias; Stumvoll, Michael [Leipzig University Medical Centre, Integrated Treatment and Research Centre (IFB) Adiposity Diseases, Leipzig (Germany); University of Leipzig, Department of Internal Medicine, Leipzig (Germany); Ding, Yu-Shin [New York University School of Medicine, Departments of Radiology and Psychiatry, New York, NY (United States)

    2017-06-15

    The brain noradrenaline (NA) system plays an important role in the central nervous control of energy balance and is thus implicated in the pathogenesis of obesity. The specific processes modulated by this neurotransmitter which lead to obesity and overeating are still a matter of debate. We tested the hypothesis that in vivo NA transporter (NAT) availability is changed in obesity by using positron emission tomography (PET) and S,S-[{sup 11}C]O-methylreboxetine (MRB) in twenty subjects comprising ten highly obese (body mass index BMI > 35 kg/m{sup 2}), metabolically healthy, non-depressed individuals and ten non-obese (BMI < 30 kg/m{sup 2}) healthy controls. Overall, we found no significant differences in binding potential (BP{sub ND}) values between obese and non-obese individuals in the investigated brain regions, including the NAT-rich thalamus (0.40 ± 0.14 vs. 0.41 ± 0.18; p = 0.84) though additional discriminant analysis correctly identified individual group affiliation based on regional BP{sub ND} in all but one (control) case. Furthermore, inter-regional correlation analyses indicated different BP{sub ND} patterns between both groups but this did not survive testing for multiple comparions. Our data do not find an overall involvement of NAT changes in human obesity. However, preliminary secondary findings of distinct regional and associative patterns warrant further investigation. (orig.)

  5. Assessment of commercially available ion exchange materials for cesium removal from highly alkaline wastes

    Energy Technology Data Exchange (ETDEWEB)

    Brooks, K.P.; Kim, A.Y.; Kurath, D.E.

    1996-04-01

    Approximately 61 million gallons of nuclear waste generated in plutonium production, radionuclide removal campaigns, and research and development activities is stored on the Department of Energy`s Hanford Site, near Richland, Washington. Although the pretreatment process and disposal requirements are still being defined, most pretreatment scenarios include removal of cesium from the aqueous streams. In many cases, after cesium is removed, the dissolved salt cakes and supernates can be disposed of as LLW. Ion exchange has been a leading candidate for this separation. Ion exchange systems have the advantage of simplicity of equipment and operation and provide many theoretical stages in a small space. The organic ion exchange material Duolite{trademark} CS-100 has been selected as the baseline exchanger for conceptual design of the Initial Pretreatment Module (IPM). Use of CS-100 was chosen because it is considered a conservative, technologically feasible approach. During FY 96, final resin down-selection will occur for IPM Title 1 design. Alternate ion exchange materials for cesium exchange will be considered at that time. The purpose of this report is to conduct a search for commercially available ion exchange materials which could potentially replace CS-100. This report will provide where possible a comparison of these resin in their ability to remove low concentrations of cesium from highly alkaline solutions. Materials which show promise can be studied further, while less encouraging resins can be eliminated from consideration.

  6. Development of high-availability ATCA/PCIe data acquisition instrumentation

    Energy Technology Data Exchange (ETDEWEB)

    Correia, Miguel; Sousa, Jorge; Batista, Antonio J.N.; Combo, Alvaro; Santos, Bruno; Rodrigues, Antonio P.; Carvalho, Paulo F.; Goncalves, Bruno [Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, 1049- 001 Lisboa (Portugal); Correia, Carlos M.B.A. [Centro de Instrumentacao, Dept. de Fisica, Universidade de Coimbra, 3004-516 Coimbra (Portugal)

    2015-07-01

    Latest Fusion energy experiments envision a quasi-continuous operation regime. In consequence, the largest experimental devices, currently in development, specify high-availability (HA) requirements for the whole plant infrastructure. HA features enable the whole facility to perform seamlessly in the case of failure of any of its components, coping with the increasing duration of plasma discharges (steady-state) and assuring safety of equipment, people, environment and investment. IPFN developed a control and data acquisition system, aiming for fast control of advanced Fusion devices, which is thus required to provide such HA features. The system is based on in-house developed Advanced Telecommunication Computing Architecture (ATCA) instrumentation modules - IO blades and data switch blades, establishing a PCIe network on the ATCA shelf's back-plane. The data switch communicates to an external host computer through a PCIe data network. At the hardware management level, the system architecture takes advantage of ATCA native redundancy and hot swap specifications to implement fail-over substitution of IO or data switch blades. A redundant host scheme is also supported by the ATCA/PCIe platform. At the software level, PCIe provides implementation of hot plug services, which translate the hardware changes to the corresponding software/operating system devices. The paper presents how the ATCA and PCIe based system can be setup to perform with the desired degree of HA, thus being suitable for advanced Fusion control and data acquisition systems. (authors)

  7. High-resolution prediction of soil available water content within the crop root zone

    Science.gov (United States)

    Haghverdi, Amir; Leib, Brian G.; Washington-Allen, Robert A.; Ayers, Paul D.; Buschermohle, Michael J.

    2015-11-01

    A detailed understanding of soil hydraulic properties, particularly soil available water content (AWC) within the effective root zone, is needed to optimally schedule irrigation in fields with substantial spatial heterogeneity. However, it is difficult and time consuming to directly measure soil hydraulic properties. Therefore, easily collected and measured soil properties, such as soil texture and/or bulk density, that are well correlated with hydraulic properties are used as proxies to develop pedotransfer functions (PTF). In this study, multiple modeling scenarios were developed and evaluated to indirectly predict high resolution AWC maps within the effective root zone. The modeling techniques included kriging, co-kriging, regression kriging, artificial neural networks (NN) and geographically weighted regression (GWR). The efficiency of soil apparent electrical conductivity (ECa) as proximal data in the modeling process was assessed. There was a good agreement (root mean square error (RMSE) = 0.052 cm3 cm-3 and r = 0.88) between observed and point prediction of water contents using pseudo continuous PTFs. We found that both GWR (mean RMSE = 0.062 cm3 cm-3) and regression kriging (mean RMSE = 0.063 cm3 cm-3) produced the best water content maps with these accuracies improved up to 19% when ECa was used as an ancillary soil attribute in the interpolation process. The maps indicated fourfold differences in AWC between coarse- and fine-textured soils across the study site. This provided a template for future investigations for evaluating the efficiency of variable rate irrigation management scenarios in accounting for the spatial heterogeneity of soil hydraulic attributes.

  8. Combining Wireless Sensor Networks and Semantic Middleware for an Internet of Things-Based Sportsman/Woman Monitoring Application

    Directory of Open Access Journals (Sweden)

    Lourdes López

    2013-01-01

    Full Text Available Wireless Sensor Networks (WSNs are spearheading the efforts taken to build and deploy systems aiming to accomplish the ultimate objectives of the Internet of Things. Due to the sensors WSNs nodes are provided with, and to their ubiquity and pervasive capabilities, these networks become extremely suitable for many applications that so-called conventional cabled or wireless networks are unable to handle. One of these still underdeveloped applications is monitoring physical parameters on a person. This is an especially interesting application regarding their age or activity, for any detected hazardous parameter can be notified not only to the monitored person as a warning, but also to any third party that may be helpful under critical circumstances, such as relatives or healthcare centers. We propose a system built to monitor a sportsman/woman during a workout session or performing a sport-related indoor activity. Sensors have been deployed by means of several nodes acting as the nodes of a WSN, along with a semantic middleware development used for hardware complexity abstraction purposes. The data extracted from the environment, combined with the information obtained from the user, will compose the basis of the services that can be obtained.

  9. Mobile phone middleware architecture for energy and context awareness in location-based services.

    Science.gov (United States)

    Galeana-Zapién, Hiram; Torres-Huitzil, César; Rubio-Loyola, Javier

    2014-12-10

    The disruptive innovation of smartphone technology has enabled the development of mobile sensing applications leveraged on specialized sensors embedded in the device. These novel mobile phone applications rely on advanced sensor information processes, which mainly involve raw data acquisition, feature extraction, data interpretation and transmission. However, the continuous accessing of sensing resources to acquire sensor data in smartphones is still very expensive in terms of energy, particularly due to the periodic use of power-intensive sensors, such as the Global Positioning System (GPS) receiver. The key underlying idea to design energy-efficient schemes is to control the duty cycle of the GPS receiver. However, adapting the sensing rate based on dynamic context changes through a flexible middleware has received little attention in the literature. In this paper, we propose a novel modular middleware architecture and runtime environment to directly interface with application programming interfaces (APIs) and embedded sensors in order to manage the duty cycle process based on energy and context aspects. The proposed solution has been implemented in the Android software stack. It allows continuous location tracking in a timely manner and in a transparent way to the user. It also enables the deployment of sensing policies to appropriately control the sampling rate based on both energy and perceived context. We validate the proposed solution taking into account a reference location-based service (LBS) architecture. A cloud-based storage service along with online mobility analysis tools have been used to store and access sensed data. Experimental measurements demonstrate the feasibility and efficiency of our middleware, in terms of energy and location resolution.

  10. Mobile Phone Middleware Architecture for Energy and Context Awareness in Location-Based Services

    Science.gov (United States)

    Galeana-Zapién, Hiram; Torres-Huitzil, César; Rubio-Loyola, Javier

    2014-01-01

    The disruptive innovation of smartphone technology has enabled the development of mobile sensing applications leveraged on specialized sensors embedded in the device. These novel mobile phone applications rely on advanced sensor information processes, which mainly involve raw data acquisition, feature extraction, data interpretation and transmission. However, the continuous accessing of sensing resources to acquire sensor data in smartphones is still very expensive in terms of energy, particularly due to the periodic use of power-intensive sensors, such as the Global Positioning System (GPS) receiver. The key underlying idea to design energy-efficient schemes is to control the duty cycle of the GPS receiver. However, adapting the sensing rate based on dynamic context changes through a flexible middleware has received little attention in the literature. In this paper, we propose a novel modular middleware architecture and runtime environment to directly interface with application programming interfaces (APIs) and embedded sensors in order to manage the duty cycle process based on energy and context aspects. The proposed solution has been implemented in the Android software stack. It allows continuous location tracking in a timely manner and in a transparent way to the user. It also enables the deployment of sensing policies to appropriately control the sampling rate based on both energy and perceived context. We validate the proposed solution taking into account a reference location-based service (LBS) architecture. A cloud-based storage service along with online mobility analysis tools have been used to store and access sensed data. Experimental measurements demonstrate the feasibility and efficiency of our middleware, in terms of energy and location resolution. PMID:25513821

  11. Synergy between Software Product Line and Intelligent Pervasive Middleware-a PLIPerM Approach

    DEFF Research Database (Denmark)

    Zhang, Weishan

    2008-01-01

    The current pervasive middleware is designed to have a monolithic structure according to a ‘one-size-fits-all' paradigm, which lacks necessary flexibilities for optimization, customization and adaptation to different situations. Ontology evolution is another problem that has not been addressed...... with OWL ontology reasoning enhanced BDI (Belief-Desire-Intention) agents, which are the basic building blocks of PLIPerM. Besides the advantages of a software product line, our approachcan handle ontology evolution and keep all related assets in a consistent state. Other advantages include the ability...

  12. A framework for job management in the NorduGrid ARC middleware

    DEFF Research Database (Denmark)

    Jensen, Henrik Thostrup; Kleist, Josva; Ryge Leth, Jesper

    2005-01-01

    This paper presents a framework for managing jobs in the NorduGrid ARC middleware. The system introduces a layer between the user and the grid, and acts as a proxy for the user. Jobs are continuously monitored and the system reacts to changes in their status, by invoking plug-ins to handle...... a certain job status. Unlike other job management systems, our is run on the client side, under the control of the user. This eliminates the need for the user to share a proxy credential, which is needed to control jobs. Furthermore the system can be extended by the user, as it is designed as a framework...

  13. Systematic review of available evidence on 11 high-priced inpatient orphan drugs

    NARCIS (Netherlands)

    T.A. Kanters (Tim A.); C. de Sonneville (Caroline); W.K. Redekop (Ken); L. van Hakkaart-van Roijen (Leona)

    2013-01-01

    markdownabstract__Abstract__ __Background__: Attention for Evidence Based Medicine (EBM) is growing, but evidence for orphan drugs is argued to be limited and inferior. This study systematically reviews the available evidence on clinical effectiveness, costeffectiveness and budget impact for orph

  14. Dynamic reconfiguration and load distribution in component middleware

    NARCIS (Netherlands)

    Wegdam, Maarten

    2003-01-01

    The ability to control the Quality of Service (QoS) characteristics of distributed systems is essential for their success. The QoS characteristics that we consider in this thesis are performance characteristics (response time and throughput) and availability characteristics (uptime, mean-timebetween

  15. Mobile Service Platform: A Middleware for Nomadic Mobile Service Provisioning

    NARCIS (Netherlands)

    Halteren, van A.T.; Pawar, P.

    2006-01-01

    Ongoing miniaturization and power efficiency of mobile devices have led to widespread availability of devices that have an increasing amount of processing power and storage, and that support multiple wireless network interfaces connecting to various auxiliary devices and to the Internet. It is now f

  16. RELIABILITY, AVAILABILITY, AND SERVICEABILITY FOR PETASCALE HIGH-END COMPUTING AND BEYOND

    Energy Technology Data Exchange (ETDEWEB)

    Chokchai " Box" Leangsuksun

    2011-05-31

    Our project is a multi-institutional research effort that adopts interplay of RELIABILITY, AVAILABILITY, and SERVICEABILITY (RAS) aspects for solving resilience issues in highend scientific computing in the next generation of supercomputers. results lie in the following tracks: Failure prediction in a large scale HPC; Investigate reliability issues and mitigation techniques including in GPGPU-based HPC system; HPC resilience runtime & tools.

  17. ubiSOAP: A Service Oriented Middleware for Ubiquitous Networking

    OpenAIRE

    Caporuscio, Mauro; Raverdy, Pierre-Guillaume; Issarny, Valerie

    2010-01-01

    International audience; The computing and networking capacities of today's wireless portable devices allow for ubiquitous services, which are seamlessly networked. Indeed, wireless handheld devices now embed the necessary resources to act as both service clients and providers. However, the ubiquitous networking of services remains challenged by the inherent mobility and resource constraints of the devices, which make services a priori highly volatile. This paper discusses the design, implemen...

  18. RF/optical shared aperture for high availability wideband communication RF/FSO links

    Energy Technology Data Exchange (ETDEWEB)

    Ruggiero, Anthony J; Pao, Hsueh-yuan; Sargis, Paul

    2014-04-29

    An RF/Optical shared aperture is capable of transmitting and receiving optical signals and RF signals simultaneously. This technology enables compact wide bandwidth communications systems with 100% availability in clear air turbulence, rain and fog. The functions of an optical telescope and an RF reflector antenna are combined into a single compact package by installing an RF feed at either of the focal points of a modified Gregorian telescope.

  19. RF/optical shared aperture for high availability wideband communication RF/FSO links

    Energy Technology Data Exchange (ETDEWEB)

    Ruggiero, Anthony J; Pao, Hsueh-yuan; Sargis, Paul

    2015-03-24

    An RF/Optical shared aperture is capable of transmitting and receiving optical signals and RF signals simultaneously. This technology enables compact wide bandwidth communications systems with 100% availability in clear air turbulence, rain and fog. The functions of an optical telescope and an RF reflector antenna are combined into a single compact package by installing an RF feed at either of the focal points of a modified Gregorian telescope.

  20. Semantic Agent-Based Service Middleware and Simulation for Smart Cities.

    Science.gov (United States)

    Liu, Ming; Xu, Yang; Hu, Haixiao; Mohammed, Abdul-Wahid

    2016-12-21

    With the development of Machine-to-Machine (M2M) technology, a variety of embedded and mobile devices is integrated to interact via the platform of the Internet of Things, especially in the domain of smart cities. One of the primary challenges is that selecting the appropriate services or service combination for upper layer applications is hard, which is due to the absence of a unified semantical service description pattern, as well as the service selection mechanism. In this paper, we define a semantic service representation model from four key properties: Capability (C), Deployment (D), Resource (R) and IOData (IO). Based on this model, an agent-based middleware is built to support semantic service enablement. In this middleware, we present an efficient semantic service discovery and matching approach for a service combination process, which calculates the semantic similarity between services, and a heuristic algorithm to search the service candidates for a specific service request. Based on this design, we propose a simulation of virtual urban fire fighting, and the experimental results manifest the feasibility and efficiency of our design.

  1. Middleware-based connection management for QoS-enabled networks

    Science.gov (United States)

    Fulp, Errin W.

    2004-10-01

    Many applications require network performance bounds, or Quality of Service (QoS), for their proper operation. This is achieved through the appropriate allocation of network resources; however, providing end-to-end QoS is becoming more complex, due to the increasing heterogeneity of networks. For example, end-to-end QoS can be provided through the concatenation of services across multiple networks (domains), but each domain may employ different network technologies as well as different QoS methodologies. As a result, management strategies are needed to provide QoS across multiple domains in a scalable and economically feasible manner. This paper describes a microeconomic-based middleware architecture that allows the specification and acquisition of QoS and resource policies. The architecture consists of users, bandwidth brokers, and network domains. Executing applications, users require network QoS obtained via middleware from a bandwidth broker. Bandwidth brokers then interact with one another to provide end-to-end QoS connections across multiple domains. This is done in a BGP manner which recursively provides end-to-end services in a scalable fashion. Using this framework, this paper describes management strategies to optimally provision and allocate end-to-end connections. The methods maintain a low blocking probability, and maximize utility and profit, which are increasingly important as network connectivity evolves as an industry.

  2. Instance-oriented delegation: A solution for providing security to Grid-based mobile agent middleware

    Institute of Scientific and Technical Information of China (English)

    MA Tian-chi; LI Shan-ping

    2005-01-01

    New challenges are introduced when people try to build a general-purpose mobile agent middleware in Grid environment. In this paper, an instance-oriented security mechanism is proposed to deal with possible security threats in such mobile agent systems. The current security support in Grid Security Infrastructure (GSI) requires the users to delegate their privileges to certain hosts. This host-oriented solution is insecure and inflexible towards mobile agent applications because it cannot prevent delegation abuse and control well the diffusion of damage. Our proposed solution introduces security instance, which is an encapsulation of one set of authorizations and their validity specifications with respect to the agent's specific code segments, or even the states and requests. Applications can establish and configure their security framework flexibly on the same platform, through defining instances and operations according to their own logic. Mechanisms are provided to allow users delegating their identity to these instances instead of certain hosts. By adopting this instance-oriented security mechanism, a Grid-based general-purpose MA middleware, Everest, is developed to enhance Globus Toolkit's security support for mobile agent applications.

  3. Investigating Commercially Available Technology for Language Learners in Higher Education within the High Functioning Disability Spectrum

    Science.gov (United States)

    Savvidou, Georgia; Loizides, Fernando

    2016-01-01

    This work presents the assistive use of a combination of technologies in language learning to individuals with high functioning disabilities within a higher education environment. The primary aim of this research is to introduce the initial findings of a pilot exploratory user test which aims to facilitate a better understanding of the suitability…

  4. Building a highly available and intrusion tolerant database security and protection system (DSPS)

    Institute of Scientific and Technical Information of China (English)

    蔡亮; 杨小虎; 董金祥

    2003-01-01

    Database Security and Protection System (DSPS) is a security platform for fighting malicious DBMS. The security and performance are critical to DSPS. The authors suggested a key management scheme by combining the server group structure to improve availability and the key distribution structure needed by proactive security. This paper detailed the implementation of proactive security in DSPS. After thorough performance analysis, the authors concluded that the performance difference between the replicated mechanism and proactive mechanism becomes smaller and smaller with increasing number of concurrent connections; and that proactive security is very useful and practical for large, critical applications.

  5. Building a highly available and intrusion tolerant database security and protection system ( DSPS)

    Institute of Scientific and Technical Information of China (English)

    蔡亮; 杨小虎; 董金祥

    2003-01-01

    Database Security and Protection System (DSPS) is a security platform for fighting malicious DBMS. The security and performance are critical to DSPS. The authors suggested a key management scheme by combining the server group structure to improve availability and the key distribution structure needed by proactive security. This paper detailed the implementation of proactive security in DSPS. After thorough performane analysis, the authors concluded that the performance difference between the replicated mechanism and proactive mechanism becomes smaller and smaller with increasing number of concurrent connections ; and that proactive security is very useful and practical for large, critical applications.

  6. An Authentication Middleware for Prevention of Information Theft

    Directory of Open Access Journals (Sweden)

    S. Kami Makki

    2015-05-01

    Full Text Available Information theft or data leakage is a growing concern for companies, as well as, individual users. Intruders can easily copy a huge amount of confidential data using hand-held devices such as USB flash drives, iPods, digital cameras or any other external storage devices. Data theft can simply occur through both insiders and outsiders of a corporation. It is becoming the biggest challenge for companies, since the storage devices are becoming smaller in size, easier to use, have higher capacity and data transmission speed. Furthermore, these devices can easily be misplaced or stolen and sensitive data can easily be exposed. In this paper we present a multilevel password verification system for prevention of information theft by removable devices to protect data leakage by various portable devices. Our proposed system consists of three main modules: 1 portable storage device monitoring, 2 activity logging and data encryption, and 3 device authorization. These modules cooperate with each other to provide required security, and prevent information theft from the individual users and companies.

  7. Styx Grid Services: Lightweight Middleware for Efficient Scientific Workflows

    Directory of Open Access Journals (Sweden)

    J.D. Blower

    2006-01-01

    Full Text Available The service-oriented approach to performing distributed scientific research is potentially very powerful but is not yet widely used in many scientific fields. This is partly due to the technical difficulties involved in creating services and workflows and the inefficiency of many workflow systems with regard to handling large datasets. We present the Styx Grid Service, a simple system that wraps command-line programs and allows them to be run over the Internet exactly as if they were local programs. Styx Grid Services are very easy to create and use and can be composed into powerful workflows with simple shell scripts or more sophisticated graphical tools. An important feature of the system is that data can be streamed directly from service to service, significantly increasing the efficiency of workflows that use large data volumes. The status and progress of Styx Grid Services can be monitored asynchronously using a mechanism that places very few demands on firewalls. We show how Styx Grid Services can interoperate with with Web Services and WS-Resources using suitable adapters.

  8. Metal availability in a highly contaminated, dredged-sediment disposal site: Field measurements and geochemical modeling

    Energy Technology Data Exchange (ETDEWEB)

    Lions, Julie, E-mail: j.lions@brgm.f [BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2 (France); Centre National de Recherche sur les Sites et Sols Pollues, BP 537, 59505 Douai cedex (France); Guerin, Valerie; Bataillard, Philippe [BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2 (France); Centre National de Recherche sur les Sites et Sols Pollues, BP 537, 59505 Douai cedex (France); Lee, Jan van der [Mines ParisTech, Centre de Geosciences, 77305 Fontainebleau Cedex (France); Laboudigue, Agnes [Univ Lille Nord de France, F-59000 Lille (France); EMDouai, MPE-GCE, F-59500 Douai (France); Centre National de Recherche sur les Sites et Sols Pollues, BP 537, 59505 Douai cedex (France)

    2010-09-15

    Two complementary approaches were used to characterize arsenic and metal mobilizations from a dredged-sediment disposal site: a detailed field study combined with hydrogeochemical modeling. Contaminants in sediments were found to be mainly present as sulfides subject to oxidation. Secondary phases (carbonates, sulfates, (hydr)oxides) were also observed. Oxidative processes occurred at different rates depending on physicochemical conditions and contaminant contents in the sediment. Two distinct areas were identified on the site, each corresponding to a specific contaminant mobility behavior. In a reducing area, Fe and As were highly soluble and illustrated anoxic behavior. In well-oxygenated material, groundwater was highly contaminated in Zn, Cd and Pb. A third zone in which sediments and groundwater were less contaminated was also characterized. This study enabled us to prioritize remediation work, which should aim to limit infiltration and long-term environmental impact. - A detailed case study of metal behavior in a dredged-sediment disposal site combined with geochemical modeling.

  9. Daily training with high carbohydrate availability increases exogenous carbohydrate oxidation during endurance cycling.

    Science.gov (United States)

    Cox, Gregory R; Clark, Sally A; Cox, Amanda J; Halson, Shona L; Hargreaves, Mark; Hawley, John A; Jeacocke, Nikki; Snow, Rodney J; Yeo, Wee Kian; Burke, Louise M

    2010-07-01

    We determined the effects of varying daily carbohydrate intake by providing or withholding carbohydrate during daily training on endurance performance, whole body rates of substrate oxidation, and selected mitochondrial enzymes. Sixteen endurance-trained cyclists or triathletes were pair matched and randomly allocated to either a high-carbohydrate group (High group; n = 8) or an energy-matched low-carbohydrate group (Low group; n = 8) for 28 days. Immediately before study commencement and during the final 5 days, subjects undertook a 5-day test block in which they completed an exercise trial consisting of a 100 min of steady-state cycling (100SS) followed by a 7-kJ/kg time trial on two occasions separated by 72 h. In a counterbalanced design, subjects consumed either water (water trial) or a 10% glucose solution (glucose trial) throughout the exercise trial. A muscle biopsy was taken from the vastus lateralis muscle on day 1 of the first test block, and rates of substrate oxidation were determined throughout 100SS. Training induced a marked increase in maximal citrate synthase activity after the intervention in the High group (27 vs. 34 micromol x g(-1) x min(-1), P < 0.001). Tracer-derived estimates of exogenous glucose oxidation during 100SS in the glucose trial increased from 54.6 to 63.6 g (P < 0.01) in the High group with no change in the Low group. Cycling performance improved by approximately 6% after training. We conclude that altering total daily carbohydrate intake by providing or withholding carbohydrate during daily training in trained athletes results in differences in selected metabolic adaptations to exercise, including the oxidation of exogenous carbohydrate. However, these metabolic changes do not alter the training-induced magnitude of increase in exercise performance.

  10. Trigon-based Authentication Service Creation with Globus Middleware

    Directory of Open Access Journals (Sweden)

    Ruckmani V

    2010-09-01

    Full Text Available A Grid is built from multi-purpose protocols and interfaces that address fundamental issues as authentication, authorization, resource discovery, and resource access. Security is of utmost importance in grid computing applications as grid resources are heterogeneous, dynamic, and multi-domain. Authentication remains as the significant security challenge in grid environment. The proposed approach uses a dual authentication protocol in order to improve the authentication service in grid environment. The protocol utilizes the fundamental concepts of trigon and based on the parameters of the trigon the user authentication will be performed. In the proposed protocol, the password is interpreted and alienated into more than one unit and these units are stored in two different servers, namely, Authentication Server and Backend Server. Only when the combined authentication scheme from both the servers authenticates the user, the privilege of accessing the requested resources is obtained by the user. The main advantage of utilizing the dual authentication protocol in grid computing is that an adversary user cannot attain the access privilege by compromising a single consolidated server because of the fact that the split password is stored in different servers. Grid service is stateful and transient web service, which can be invoked by clients, and is considered to be the mainstream of future internet. The creation of Web Services standards is an industry-led initiative, with some of the emerging standards in various states of progress through the World Wide Web Consortium (W3C. To achieve reuse of behaviors of this authentication concept, operations are often grouped together to form a trigon based authentication service.

  11. Future water availability in North African dams simulated by high-resolution regional climate models

    Science.gov (United States)

    Tramblay, Yves; Jarlan, Lionel; Hanich, Lahoucine; Somot, Samuel

    2016-04-01

    In North Africa, the countries of Morocco, Algeria and Tunisia are already experiencing water scarcity and a strong interannual variability of precipitation. To better manage their existing water resources, several dams and reservoirs have been built on most large river catchments. The objective of this study is to provide quantitative scenarios of future changes in water availability for the 47 major dams and reservoirs catchments located in North Africa. An ensemble of regional climate models (RCM) with a spatial resolution of 12km, driven by different general circulation models (GCM), from the EuroCORDEX experiment have been considered to analyze the projected changes on temperature, precipitation and potential evapotranspiration (PET) for two scenarios (RCP4.5 and RCP8.5) and two time horizons (2040-2065 and 2065-2090). PET is estimated from RCM outputs either with the FAO-Penman-Monteith (PM) equation, requiring air temperature, relative humidity, net radiation and wind, or with the Hargreave Samani (HS) equation, requiring only air temperature. The water balance is analyzed by comparing the climatic demand and supply of water, considering that for most of these catchments groundwater storage is negligible over long time periods. Results indicated a future temperature increase for all catchments between +1.8° and +4.2°, depending on the emission scenario and the time period considered. Precipitation is projected to decrease between -14% to -27%, mainly in winter and spring, with a strong East to West gradient. PET computed from PM or HS formulas provided very similar estimates and projections, ranging between +7% to +18%. Changes in PET are mostly driven by rising temperatures and are greatest during dry summer months than for the wet winter season. Therefore the increased PET has a lower impact than declining precipitation on future water availability, which is expected to decrease by -19% to -33% on average.

  12. XRTPS – EXTENSIBLE REAL-TIME PUBLISH-SUBSCRIBE: MIDDLEWARE MULTICAST PARA TROCA DE DADOS BASEADO EM XML PARA REDES DE TEMPO REAL

    Directory of Open Access Journals (Sweden)

    Jalerson Raposo Ferreira de Lima

    2011-06-01

    Full Text Available Um fator recorrente das redes de escritório é a busca por maior desempenho, ou seja, redes que executem suas tarefas no menor tempo possível. Porém, para redes industriais o desempenho médio não é o fator mais relevante, isso porque o desempenho de um sistema de tempo real está diretamente relacionado com a previsibilidade imposta pelo ambiente. Enquanto as redes de escritório são orientadas a obter o melhor desempenho médio possível, as redes industriais são orientadas a requisitos temporais, dado que o fator de cumprimento das metas temporais é imperativo em muitas aplicações de tempo real, ou seja, o determinismo. O padrão Ethernet é a principal tecnologia de interconexão de redes locais, porém ainda não foi estabelecido como padrão para redes industriais porque o seu método de acesso ao meio, o CSMA/CD, não atende aos requisitos temporais exigidos por esse tipo de rede. Esse trabalho teve como objetivo desenvolver um middleware em Java para troca de dados em redes industriais, denominado Extensible Real-Time Publish Subscribe. Java foi escolhida como a tecnologia de desenvolvimento a fim de garantir a independência de plataforma provida pela Máquina Virtual Java. Essa independência também é provida pelo próprio middleware, uma vez que suas mensagens são formatadas em XML, que por se tratar de um padrão mundial estabelecido pela W3C, pode ser manipulado por diferentes tecnologias.

  13. CARMA: Management infrastructure and middleware for multi-paradigm computing

    Science.gov (United States)

    Troxel, Ian A.

    A recent trend toward multi-paradigm systems that couple General-Purpose Processors (GPPs) and other special-purpose devices such as Field-Programmable Gate Arrays (FPGAs) has shown impressive speedups. In fact, some researchers see such systems as vital to extending an anticipated slowing of Moore's law. However, extracting the full potential of large-scale, multi-paradigm, High-Performance Computing (HPC) systems has proven difficult due in part to a lack of traditional job management services upon which HPC users have come to rely. In this dissertation, the Comprehensive Approach to Reconfigurable Management Architecture (CARMA) is introduced and investigated. CARMA attempts to address the issue of large-scale, multi-paradigm system utilization by (1) providing a scalable, modular framework standard upon which other scholarly work can build; (2) conducting feasibility and tradeoff analysis of key components to determine strategies for reducing overhead and increasing performance and functionality; and (3) deploying initial prototypes with baseline services to receive feedback from the research community. In order to serve the needs of a wide range of HPC users, versions of CARMA tailored to two unique processing paradigms have been deployed and studied on an embedded space system and Beowulf cluster. Several scholarly contributions have been made by developing and analyzing the first comprehensive framework to date for job and resource management and services. CARMA is a first step toward developing an open standard with a modular design that will spur inventiveness and foster industry, government and scholarly collaboration much like Condor, Globus and the Open Systems Interconnect model have done for the cluster, grid and networking environments. Developing and evaluating components to fill out the CARMA infrastructure provided key insight into how future multi-paradigm runtime management services should be structured. In addition, deploying initial prototypes

  14. Fish bones--a highly available calcium source for growing pigs.

    Science.gov (United States)

    Malde, M K; Graff, I E; Siljander-Rasi, H; Venäläinen, E; Julshamn, K; Pedersen, J I; Valaja, J

    2010-10-01

    In general, there is a lack of scientific documentation of nutritional value of marine by-products. The bone fraction from fish has been regarded as waste. Due to the high mineral content of fish bones, this material can be well suitable as a natural calcium source. In the present study, apparent calcium absorption of different fish bone sources was tested using growing pigs. The experimental diets consisted of boiled salmon frames, or salmon, saithe or cod bones treated with enzymes. Calcium carbonate (CaCO(3)) was used as control. The experimental diets were formulated to contain 0.7% total calcium of which the added calcium source to be tested contributed about 71% (study 1) and 86% (study 2). Except for the calcium and phosphorus sources, the animals received similar basal diets. Apparent calcium digestibility coefficient was calculated using yttrium as indicator (both studies) and was based on complete collection of faeces and urine (study 2). The experimental design was parallel and cross-over in study 1 and study 2, respectively. In study 1, piglets getting salmon bone treated with enzymes had significantly higher calcium absorption than piglets getting boiled fish bone or calcium carbonate. Therefore, in the second study only enzymatically treated fish bones were included. The higher calcium absorption from enzymatically treated salmon bone was also found in study 2, but this time not significant. Calcium from boiled salmon bones in study I, and from enzymatically treated saithe and cod bones in study II were absorbed as well as the calcium carbonate control. The results indicate that fish bones may be a useful and well absorbed calcium source. Due to the high mineral content of the bone fraction, salmon bones can be well suitable as a natural calcium and phosphorus source in, for example, food, feed or as supplement.

  15. Response of Streptococcus suis to iron-restricted growth conditions at high and low oxygen availability.

    Science.gov (United States)

    Winterhoff, Nora; Goethe, Ralph; Gruening, Petra; Valentin-Weigand, Peter

    2004-01-01

    Streptococcus suis (S. suis) is an important pathogen in pigs and has to overcome strict iron limitations in its host environment. Here, we studied iron-restricted growth of a highly virulent S. suis strain in vitro at aerobic and CO2-enriched growth conditions. At both conditions, depleting of iron in the culture medium with nitrilotriacetic acid (NTA) resulted in decreased growth rates and down regulation of several proteins. Sensitivity to NTA was significantly higher at aerobic versus CO2-enriched conditions. Growth could not be restored by addition of host iron sources such as ferritin, hemin, hemoglobin, lactoferrin or transferrin. Accordingly, S. suis was not able to produce detectable amounts of siderophores. On the other hand, growth at iron-restricted conditions was fully restored by addition of Mn2+ (at aerobic and CO2-enriched conditions) or Mg2+ (only at CO2-enriched conditions). In conclusion our results suggest that, unlike many other bacteria, S. suis adapts to iron restricted conditions by a change in its metabolism in order to replace Fe2+ by Mn2+ or Mg2+ rather than by expressing specific iron uptake systems.

  16. Using DNA metabarcoding to investigate honey bee foraging reveals limited flower use despite high floral availability.

    Science.gov (United States)

    de Vere, Natasha; Jones, Laura E; Gilmore, Tegan; Moscrop, Jake; Lowe, Abigail; Smith, Dan; Hegarty, Matthew J; Creer, Simon; Ford, Col R

    2017-02-16

    Understanding which flowers honey bees (Apis mellifera) use for forage can help us to provide suitable plants for healthy honey bee colonies. Accordingly, honey DNA metabarcoding provides a valuable tool for investigating pollen and nectar collection. We investigated early season (April and May) floral choice by honey bees provided with a very high diversity of flowering plants within the National Botanic Garden of Wales. There was a close correspondence between the phenology of flowering and the detection of plants within the honey. Within the study area there were 437 genera of plants in flower during April and May, but only 11% of these were used. Thirty-nine plant taxa were recorded from three hives but only ten at greater than 1%. All three colonies used the same core set of native or near-native plants, typically found in hedgerows and woodlands. The major plants were supplemented with a range of horticultural species, with more variation in plant choice between the honey bee colonies. We conclude that during the spring, honey bees need access to native hedgerows and woodlands to provide major plants for foraging. Gardens provide supplementary flowers that may increase the nutritional diversity of the honey bee diet.

  17. Detection of high-risk human papillomavirus infection in tonsillar specimens using 2 commercially available assays.

    Science.gov (United States)

    Cockerill, Cara C; Orvidas, Laura J; Moore, Eric J; Binnicker, Matthew J; Duresko, Brian J; Espy, Mark J; Cockerill, Franklin R; Tombers, Nicole M; Pritt, Bobbi S

    2016-12-01

    THE OBJECTIVE OF THE STUDY IS TO DETERMINE THE PREVALENCE OF HIGH-RISK HUMAN PAPILLOMAVIRUS (HRHPV) INFECTION IN TONSILLAR SWABS AND TISSUE: Patients undergoing tonsillectomy for nonmalignant causes were enrolled. A flocked swab and fresh tissue were collected from the left and right tonsil of each patient. Specimens were tested for hrHPV DNA using the Roche cobas test and for the presence of E6/E7 messenger RNA using the Hologic Aptima hrHPV test. Of the 193 patients enrolled, 129 were in the pediatric group (ages 1-12years; median, 5years), and 64 were in the adult group (ages 13-55; median, 22years). All swab and tissue specimens were negative for hrHPV by both methods. Positive, negative, and internal controls performed as expected. We found a 0% rate of infection indicating that detectable hrHPV infection in tonsillar tissue appears to be uncommon in the children and adults in the population sampled. Copyright © 2016 Elsevier Inc. All rights reserved.

  18. Using DNA metabarcoding to investigate honey bee foraging reveals limited flower use despite high floral availability

    Science.gov (United States)

    de Vere, Natasha; Jones, Laura E.; Gilmore, Tegan; Moscrop, Jake; Lowe, Abigail; Smith, Dan; Hegarty, Matthew J.; Creer, Simon; Ford, Col R.

    2017-01-01

    Understanding which flowers honey bees (Apis mellifera) use for forage can help us to provide suitable plants for healthy honey bee colonies. Accordingly, honey DNA metabarcoding provides a valuable tool for investigating pollen and nectar collection. We investigated early season (April and May) floral choice by honey bees provided with a very high diversity of flowering plants within the National Botanic Garden of Wales. There was a close correspondence between the phenology of flowering and the detection of plants within the honey. Within the study area there were 437 genera of plants in flower during April and May, but only 11% of these were used. Thirty-nine plant taxa were recorded from three hives but only ten at greater than 1%. All three colonies used the same core set of native or near-native plants, typically found in hedgerows and woodlands. The major plants were supplemented with a range of horticultural species, with more variation in plant choice between the honey bee colonies. We conclude that during the spring, honey bees need access to native hedgerows and woodlands to provide major plants for foraging. Gardens provide supplementary flowers that may increase the nutritional diversity of the honey bee diet. PMID:28205632

  19. A Method of Data Synchronous Updating Based on Message Oriented Middleware%基于消息中间件的数据同步更新方法

    Institute of Scientific and Technical Information of China (English)

    袁震

    2013-01-01

    Aimed at the problem of the central database synchronization update after the data in the distributed database changing, a method of data synchronous updating based on message oriented middleware is presented. By the oriented middleware, both the communication mechanism of Socket and the technology of multi thread are comprehensively used in this method. The data to be received by the centre database server is temporarily saved in the queue as a data structure. The processing flow chart and the part of the code are provided. The simulation experiment results prove that the method has a stable performance and high efficiency while guaranteeing the integrity of the data transmission.%  针对分布式环境下同类型数据库数据发生变化后中心数据库同步更新的问题,提出一种基于消息中间件的数据同步更新方法。该方法采用中间件方法,综合使用Socket通信机制、多线程等技术,在中心数据库的服务器端使用队列来存储上传来的数据,并给出部分代码及处理流程图。仿真实验结果证明:该方法性能稳定、效率较高,且确保了传输数据的完整性。

  20. High School Physics Availability: Results from the 2008-09 Nationwide Survey of High School Physics Teachers. Focus On

    Science.gov (United States)

    White, Susan; Tesfaye, Casey Langer

    2010-01-01

    In the fall of 2008, the authors contacted a representative sample of over 3,600 high schools in the U.S.--both public and private--to determine whether or not physics was taught there. They received responses from over 99% of the schools. For the schools which indicated they were offering physics, they obtained contact information for the…

  1. Streamlined sign-out of capillary protein electrophoresis using middleware and an open-source macro application

    Directory of Open Access Journals (Sweden)

    Gagan Mathur

    2014-01-01

    Full Text Available Background: Interfacing of clinical laboratory instruments with the laboratory information system (LIS via "middleware" software is increasingly common. Our clinical laboratory implemented capillary electrophoresis using a Sebia; Capillarys-2™ (Norcross, GA, USA instrument for serum and urine protein electrophoresis. Using Data Innovations Instrument Manager, an interface was established with the LIS (Cerner that allowed for bi-directional transmission of numeric data. However, the text of the interpretive pathology report was not properly transferred. To reduce manual effort and possibility for error in text data transfer, we developed scripts in AutoHotkey, a free, open-source macro-creation and automation software utility. Materials and Methods: Scripts were written to create macros that automated mouse and key strokes. The scripts retrieve the specimen accession number, capture user input text, and insert the text interpretation in the correct patient record in the desired format. Results: The scripts accurately and precisely transfer narrative interpretation into the LIS. Combined with bar-code reading by the electrophoresis instrument, the scripts transfer data efficiently to the correct patient record. In addition, the AutoHotKey script automated repetitive key strokes required for manual entry into the LIS, making protein electrophoresis sign-out easier to learn and faster to use by the pathology residents. Scripts allow for either preliminary verification by residents or final sign-out by the attending pathologist. Conclusions: Using the open-source AutoHotKey software, we successfully improved the transfer of text data between capillary electrophoresis software and the LIS. The use of open-source software tools should not be overlooked as tools to improve interfacing of laboratory instruments.

  2. Semantic Web based Self-management for a Pervasive Service Middleware

    DEFF Research Database (Denmark)

    Zhang, Weishan; Hansen, Klaus Marius

    2008-01-01

    . State changes are triggering execution of self-management rules for adaption, monitoring, diagnosis, and so on. Evaluations of self-diagnosis in terms of extensibility, performance,and scalability show that the semantic Web based self-management approach is effective to achieve the self-diagnosis goals......Self-management is one of the challenges for realizing ambient intelligence in pervasive computing. In this paper,we propose and present a semantic Web based self-management approach for a pervasive service middleware where dynamic context information is encoded in a set of self-management context...... ontologies. The proposed approach is justified from the characteristics of pervasive computing and the open world assumption and reasoning potentials of semantic Web and its rule language. To enable real-time self-management, application level and network level state reporting is employed in our approach...

  3. Efficiency image data retrieval based on asynchronous capability aware spatial search service middleware

    Science.gov (United States)

    Chen, Nengcheng; Chen, Zeqiang; Gong, Jianya

    2007-11-01

    Recent advances in open geospatial web service, such as Web Coverage Service as well as corresponding web ready data processing service, have led to the generation of large amounts of OGC enabled links on Internet. Recently a few search engines that are specialised with respect to geographic space have appeared. However, users do not always get the effective OGC WCS link information they expect when searching the Web. How to quickly find the correct spatial aware web service in a heterogeneous distributed environment has become a "bottleneck" of geospatial web-based applications. In order to improve the retrieval efficiency of OGC Web Coverage Service (WCS) on WWW, a new methodology for retrieving WCS based on clustering capability aware spatial search service middleware is put forward in this paper.

  4. Towards Service-Oriented Middleware for Fog and Cloud Integrated Cyber Physical Systems

    DEFF Research Database (Denmark)

    Mohamed, Nader; Lazarova-Molnar, Sanja; Jawhar, Imad

    2017-01-01

    Many Cyber-Physical Systems (CPS) at different scales are being developed for a variety of applications that provide valuable interactions between the cyber world and the physical systems and environments. However, the development of these systems face many challenges due to the complexity...... enables the integration of CPS with other systems such as Cloud and Fog Computing. Furthermore, as CPS can be developed for various applications at different scales, this paper provides a classification for CPS applications and discusses how CPSWare can effectively deal with the different issues in each....... In addition, it proposes an SOM for CPS, called CPSWare. This middleware views all CPS components as a set of services and provides a service-based infrastructure to develop and operate CPS applications. This approach provides systemic solutions for solving many computing and networking issues in CPS. It also...

  5. QoS-aware self-adaptation of communication protocols in a pervasive service middleware

    DEFF Research Database (Denmark)

    Zhang, Weishan; Hansen, Klaus Marius; Fernandes, João

    2010-01-01

    Pervasive computing is characterized by heterogeneous devices that usually have scarce resources requiring optimized usage. These devices may use different communication protocols which can be switched at runtime. As different communication protocols have different quality of service (Qo......S) properties, this motivates optimized self-adaption of protocols for devices, e.g., considering power consumption and other QoS requirements, e.g. round trip time (RTT) for service invocations, throughput, and reliability. In this paper, we present an extensible approach for self-adaptation of communication...... protocols for pervasive web services, where protocols are designed as reusable connectors and our middleware infrastructure can hide the complexity of using different communication protocols to upper layers. We also propose to use Genetic Algorithms (GAs) to find optimized configurations at runtime...

  6. Cassandra high availability

    CERN Document Server

    Strickland, Robbie

    2014-01-01

    If you are a developer or DevOps engineer who understands the basics of Cassandra and are ready to take your knowledge to the next level, then this book is for you. An understanding of the essentials of Cassandra is needed.

  7. An Exploration of Support Factors Available to Higher Education Students with High Functioning Autism or Asperger Syndrome

    Science.gov (United States)

    Rutherford, Emily N.

    2013-01-01

    This qualitative phenomenological research study used narrative inquiry to explore the support factors available to students with High Functioning Autism or Asperger Syndrome in higher education that contribute to their success as perceived by the students. Creswell's (2009) six step method for analyzing phenomenological studies was used to…

  8. An Exploration of Support Factors Available to Higher Education Students with High Functioning Autism or Asperger Syndrome

    Science.gov (United States)

    Rutherford, Emily N.

    2013-01-01

    This qualitative phenomenological research study used narrative inquiry to explore the support factors available to students with High Functioning Autism or Asperger Syndrome in higher education that contribute to their success as perceived by the students. Creswell's (2009) six step method for analyzing phenomenological studies was used to…

  9. The Availability and Utilization of School Library Resources in Some Selected Secondary Schools (High School) in Rivers State

    Science.gov (United States)

    Owate, C. N.; Iroha, Okpa

    2013-01-01

    This study investigates the availability and utilization of school library resources by Secondary School (High School) Students. Eight Selected Secondary Schools in Rivers State, Nigeria were chosen based on their performance in external examinations and geographic locations. In carrying out the research, questionnaires were administered to both…

  10. Definition and implementation of a SAML-XACML profile for authorization interoperability across grid middleware in OSG and EGEE

    Energy Technology Data Exchange (ETDEWEB)

    Garzoglio, Gabriele; Alderman, Ian; Altunay, Mine; Anathakrishnan, Rachana; Bester, Joe; Chadwick, Keith; Ciaschini, Vincenzo; Demchenko, Yuri; Ferraro, Andrea; Forti, Alberto; Groep, David; /Fermilab /NIKHEF, Amsterdam /Brookhaven /Amsterdam U. /SWITCH, Zurich /Bergen U. /INFN, CNAF /Argonne /Wisconsin U., Madison

    2009-04-01

    In order to ensure interoperability between middleware and authorization infrastructures used in the Open Science Grid (OSG) and the Enabling Grids for E-sciencE (EGEE) projects, an Authorization Interoperability activity was initiated in 2006. The interoperability goal was met in two phases: first, agreeing on a common authorization query interface and protocol with an associated profile that ensures standardized use of attributes and obligations; and second, implementing, testing, and deploying, on OSG and EGEE, middleware that supports the interoperability protocol and profile. The activity has involved people from OSG, EGEE, the Globus Toolkit project, and the Condor project. This paper presents a summary of the agreed-upon protocol, profile and the software components involved.

  11. Integrating Distributed Interactive Simulations With the Project Darkstar Open-Source Massively Multiplayer Online Game (MMOG) Middleware

    Science.gov (United States)

    2009-09-01

    be complete MMOG solutions such as Multiverse are not within the scope of this thesis, though it is recommended that readers compare this type of...software to the middleware described here ( Multiverse , 2009). 1. University of Munster: Real-Time Framework The Real-Time Framework (RTF) project is...10, 2009, from http://wiki.secondlife.com/wiki/MMOX Multiverse . (2009). Multiverse platform architecture. Retrieved September 9, 2009, from http

  12. Scalable and Resilient Middleware to Handle Information Exchange during Environment Crisis

    Science.gov (United States)

    Tao, R.; Poslad, S.; Moßgraber, J.; Middleton, S.; Hammitzsch, M.

    2012-04-01

    The EU FP7 TRIDEC project focuses on enabling real-time, intelligent, information management of collaborative, complex, critical decision processes for earth management. A key challenge is to promote a communication infrastructure to facilitate interoperable environment information services during environment events and crises such as tsunamis and drilling, during which increasing volumes and dimensionality of disparate information sources, including sensor-based and human-based ones, can result, and need to be managed. Such a system needs to support: scalable, distributed messaging; asynchronous messaging; open messaging to handling changing clients such as new and retired automated system and human information sources becoming online or offline; flexible data filtering, and heterogeneous access networks (e.g., GSM, WLAN and LAN). In addition, the system needs to be resilient to handle the ICT system failures, e.g. failure, degradation and overloads, during environment events. There are several system middleware choices for TRIDEC based upon a Service-oriented-architecture (SOA), Event-driven-Architecture (EDA), Cloud Computing, and Enterprise Service Bus (ESB). In an SOA, everything is a service (e.g. data access, processing and exchange); clients can request on demand or subscribe to services registered by providers; more often interaction is synchronous. In an EDA system, events that represent significant changes in state can be processed simply, or as streams or more complexly. Cloud computing is a virtualization, interoperable and elastic resource allocation model. An ESB, a fundamental component for enterprise messaging, supports synchronous and asynchronous message exchange models and has inbuilt resilience against ICT failure. Our middleware proposal is an ESB based hybrid architecture model: an SOA extension supports more synchronous workflows; EDA assists the ESB to handle more complex event processing; Cloud computing can be used to increase and

  13. Availability and Quality of Family Planning Services in the Democratic Republic of the Congo: High Potential for Improvement.

    Science.gov (United States)

    Mpunga, Dieudonné; Lumbayi, J P; Dikamba, Nelly; Mwembo, Albert; Ali Mapatano, Mala; Wembodinga, Gilbert

    2017-06-27

    To determine the availability and quality of family planning services within health facilities throughout the Democratic Republic of the Congo (DRC). Data were collected for the cross-sectional study from April 2014 to June 2014 by the Ministry of Public Health. A total of 1,568 health facilities that reported data to the National Health Information System were selected by multistage random sampling in the 11 provinces of the DRC existing at that time. Data were collected through interviews, document review, and direct observation. Two dependent variables were measured: availability of family planning services (consisting of a room for services, staff assigned to family planning, and evidence of client use of family planning) and quality of family planning services (assessed as "high" if the facility had at least 1 trained staff member, family planning service delivery guidelines, at least 3 types of methods, and a sphygmomanometer, or "low" if the facility did not meet any of these 4 criteria). Pearson's chi-square test and odds ratios (ORs) were used to test for significant associations, using the alpha significance level of .05. We successfully surveyed 1,555 facilities (99.2%) of those included in the sample. One in every 3 facilities (33%) offered family planning services as assessed by the index of availability, of which 20% met all 4 criteria for providing high-quality services. Availability was greatest at the highest level of the health system (hospitals) and decreased incrementally with each health system level, with disparities between provinces and urban and rural areas. Facilities in urban areas were more likely than in rural areas to meet the standard for high-quality services (Pplanning services in health facilities in the DRC remain low, with inequitable distribution of services throughout the country. To improve access to and use of family planning, efforts should focus on improving availability and quality at lower health system levels and in

  14. Availability of state-based obesity surveillance data on high school students with disabilities in the United States.

    Science.gov (United States)

    Yamaki, Kiyoshi; Lowry, Brienne Davis; Buscaj, Emilie; Zisko, Leigh; Rimmer, James H

    2015-05-01

    The aim of this study was to assess the availability of public health surveillance data on obesity among American children with disabilities in state-based surveillance programs. We reviewed annual cross-sectional datasets in state-level surveillance programs for high school students, implemented 2001-2011, for the inclusion of weight and height and disability screening questions. When datasets included a disability screen, its content and consistency of use across years were examined. We identified 54 surveillance programs with 261 annual datasets containing obesity data. Twelve surveillance programs in 11 states included a disability screening question that could be used to extract obesity data for high school students with disabilities, leaving the other 39 states with no state-level obesity data for students with disabilities. A total of 43 annual datasets, 16.5 % of the available datasets, could be used to estimate the obesity status of students with disabilities. The frequency of use of disability questions varied across states, and the content of the questions often changed across years and within a state. We concluded that state surveillance programs rarely contained questions that could be used to identify high school students with disabilities. This limits the availability of data that can be used to monitor obesity and related health statuses among this population in the majority of states.

  15. 基于AMQP消息中间件的主动状态证书撤销机制实现%Implementation of active status certificate revocation scheme based on AMQP message-oriented middleware

    Institute of Scientific and Technical Information of China (English)

    付建丹; 熊选东; 张亮忠; 王松锋; 王珏

    2012-01-01

    主动状态证书撤销机制是一种新的证书撤销验证机制,如何实现该机制还未见具体的案例.在分析高级消息队列协议(AMQP)的基础上,结合主动状态证书的订阅/发布要求,设计了一种基于AMQP消息中间件的主动状态证书发布与订阅模型.通过实验分析表明,该消息中间件系统应用灵活,系统性能高效、稳定.%Active status certificate revocation is one of the certificate revocation verification schemes, while there is not any its implementation case. Analyzing the advanced message queue protoeol( AMQP) and the requirement of publish/subscribe active status certificate, this paper implemented a new active status certificate publish/subscribe model based on AMQP message-oriented middleware. By testing its performance, the application of the message-oriented middleware system is flexible and the system' s performance is high efficient and stable.

  16. 面向 Web 服务的拜占庭容错中间件的设计*%Byz antine Fault-tolerant Middleware for Web Service

    Institute of Scientific and Technical Information of China (English)

    周伟; 陈柳

    2014-01-01

    根据Web服务的特点,设计了一个拜占庭容错中间件。基于使用最广泛的SOAP引擎Axis2,屏蔽了拜占庭错误容忍算法的细节和数据传输的细节,应用程序逻辑只需要调用中间件提供的接口发送和接收消息即可。将该中间件作为SOAP引擎的传输层,使得SOAP引擎能够使用各种底层传输协议,而不是局限于某一种传输协议。基于Axis2的Web服务可以方便地使用该中间件,具备拜占庭容错能力。进行了实验分析,结果显示了设计的有效性。%Based on the features of Web services ,a Byzantine fault‐tolerant middleware is proposed .The middleware is based on Axis2 which is the most widely used as the SOAP engine .The details of the Byzantine fault tolerant algorithm and data transmission are screened by the middleware .The applications use the I/O provided by the middleware to send and re‐ceive messages .The middleware is used as the transport layer of SOAP engine ,which makes SOAP engine can use a variety of underlying transport protocol ,rather than confined to a particular transport protocol .The Axis2 is used as a middleware platform making the existing Web services based on Axis2 do a few modifications to use the middleware and have the ability to tolerance Byzantine faults .The experimental results show the effectiveness of the design .

  17. Condom availability in high risk places and condom use: a study at district level in Kenya, Tanzania and Zambia

    Directory of Open Access Journals (Sweden)

    Sandøy Ingvild

    2012-11-01

    Full Text Available Abstract Background A number of studies from countries with severe HIV epidemics have found gaps in condom availability, even in places where there is a substantial potential for HIV transmission. Although reported condom use has increased in many African countries, there are often big differences by socioeconomic background. The aim of this study was to assess equity aspects of condom availability and uptake in three African districts to evaluate whether condom programmes are given sufficient priority. Methods Data on condom availability and use was examined in one district in Kenya, one in Tanzania and one in Zambia. The study was based on a triangulation of data collection methods in the three study districts: surveys in venues where people meet new sexual partners, population-based surveys and focus group discussions. The data was collected within an overall study on priority setting in health systems. Results At the time of the survey, condoms were observed in less than half of the high risk venues in two of the three districts and in 60% in the third district. Rural respondents in the population-based surveys perceived condoms to be less available and tended to be less likely to report condom use than urban respondents. Although focus group participants reported that condoms were largely available in their district, they expressed concerns related to the accessibility of free condoms. Conclusion As late as thirty years into the HIV epidemic there are still important gaps in the availability of condoms in places where people meet new sexual partners in these three African districts. Considering that previous studies have found that improved condom availability and accessibility in high risk places have a potential to increase condom use among people with multiple partners, the present study findings indicate that substantial further efforts should be made to secure that condoms are easily accessible in places where sexual relationships are

  18. A Grid Middleware Framework Support for a Workflow Model Based on Virtualized Resources

    Science.gov (United States)

    Lee, Jinbock; Lee, Sangkeon; Choi, Jaeyoung

    Nowadays, the virtualization technologies are widely used to overcome the difficulty of managing Grid computing infrastructures. The virtual account and the virtual workspace are very optimistic to allocate Grid resources to specific user, but they lacks of capability of interaction between portal services and virtualized resources which required by Grid portal. The virtual application is fitted to wrap simple application as a Grid portal service, but integrating some applications to compose larger application service is difficult. In this paper, we present a Grid middleware framework which supports for a workflow model based on virtualized resources. Meta Services in the framework exposes workflow as a portal service and service call is converted different workflow according to parameter and workflow generated by the Meta Services is scheduled in a virtual cluster which configured by this framework. Because of virtual application service can be composed of workflow and service interface wraps the workflow providing a complex portal services composed by small application could effectively integrated to Grid portal and scheduled in virtual computing resources.

  19. Internet of Things based on smart objects technology, middleware and applications

    CERN Document Server

    Trunfio, Paolo

    2014-01-01

    The Internet of Things (IoT) usually refers to a world-wide network of interconnected heterogeneous objects (sensors, actuators, smart devices, smart objects, RFID, embedded computers, etc) uniquely addressable, based on standard communication protocols. Beyond such a definition, it is emerging a new definition of IoT seen as a loosely coupled, decentralized system of cooperating smart objects (SOs). A SO is an autonomous, physical digital object augmented with sensing/actuating, processing, storing, and networking capabilities. SOs are able to sense/actuate, store, and interpret information created within themselves and around the neighbouring external world where they are situated, act on their own, cooperate with each other, and exchange information with other kinds of electronic devices and human users. However, such SO-oriented IoT raises many in-the-small and in-the-large issues involving SO programming, IoT system architecture/middleware and methods/methodologies for the development of SO-based applica...

  20. HYDRA: A Middleware-Oriented Integrated Architecture for e-Procurement in Supply Chains

    Science.gov (United States)

    Alor-Hernandez, Giner; Aguilar-Lasserre, Alberto; Juarez-Martinez, Ulises; Posada-Gomez, Ruben; Cortes-Robles, Guillermo; Garcia-Martinez, Mario Alberto; Gomez-Berbis, Juan Miguel; Rodriguez-Gonzalez, Alejandro

    The Service-Oriented Architecture (SOA) development paradigm has emerged to improve the critical issues of creating, modifying and extending solutions for business processes integration, incorporating process automation and automated exchange of information between organizations. Web services technology follows the SOA's principles for developing and deploying applications. Besides, Web services are considered as the platform for SOA, for both intra- and inter-enterprise communication. However, an SOA does not incorporate information about occurring events into business processes, which are the main features of supply chain management. These events and information delivery are addressed in an Event-Driven Architecture (EDA). Taking this into account, we propose a middleware-oriented integrated architecture that offers a brokering service for the procurement of products in a Supply Chain Management (SCM) scenario. As salient contributions, our system provides a hybrid architecture combining features of both SOA and EDA and a set of mechanisms for business processes pattern management, monitoring based on UML sequence diagrams, Web services-based management, event publish/subscription and reliable messaging service.

  1. THE ASSESMENT OF MAIN CHARACTERISTICS AND PROCESSING AVAILABILITY OF WOOL OBTAINED FROM SHEEP BELONGING TO THE PALAS HIGH PROLIFICACY LINE

    Directory of Open Access Journals (Sweden)

    ANA ENCIU

    2013-12-01

    Full Text Available The purpose of these researches was to analyze the quantitative and qualitative parameters of wool obtained from the Palas sheep population with high prolificacy and to assess the processing availabilities of these fibres type. Average values recorded for the main wool traits ranged between the following limits: wool production 2.86 ÷ 4.72 kilos; fibres fineness 27.28 ÷ 29.32 microns; variability of fineness ( CV 26.88 ÷ 29.94 %; staple length 9.77 ÷ 14.23 cm, variability of length ( CV 18.01 ÷ 22.06 % ; scouring yield 54.05 ÷ 61.44 % and the variability of yield 8.35 ÷ 14.78 %. . This wool has a technological value similar to that obtained from the sheep breed with medium fineness wool (Tigaie, Spanca .

  2. Next Generation Fast RF Interlock Module and ATCA Adapter for ILC High Availability RF Test Station Demonstration

    Energy Technology Data Exchange (ETDEWEB)

    Larsen, R

    2009-10-17

    High availability interlocks and controls are required for the ILC (International Linear Collider) L-Band high power RF stations. A new F3 (Fast Fault Finder) VME module has been developed to process both fast and slow interlocks using FPGA logic to detect the interlock trip excursions. This combination eliminates the need for separate PLC (Programmable Logic Controller) control of slow interlocks. Modules are chained together to accommodate as many inputs as needed. In the next phase of development the F3's will be ported to the new industry standard ATCA (Advanced Telecom Computing Architecture) crate (shelf) via a specially designed VME adapter module with IPMI (Intelligent Platform Management Interface). The goal is to demonstrate auto-failover and hot-swap for future partially redundant systems.

  3. LHCb: Performance evaluation and capacity planning for a scalable and highly available virtulization infrastructure for the LHCb experiment

    CERN Multimedia

    Sborzacchi, F; Neufeld, N

    2013-01-01

    The virtual computing is often run to satisfy different needs: reduce costs, reduce resources, simplify maintenance and the last but not the least add flexibility. The use of Virtualization in a complex system such as a farm of PCs that control the hardware of an experiment (PLC, power supplies ,gas, magnets..) put us in a condition where not only an High Performance requirements need to be carefully considered but also a deep analysis of strategies to achieve a certain level of High Availability. We conducted a performance evaluation on different and comparable storage/network/virtulization platforms. The performance is measured using a series of independent benchmarks , testing the speed an the stability of multiple VMs runnng heavy-load operations on the I/O of virtualized storage and the virtualized network. The result from the benchmark tests allowed us to study and evaluate how the different workloads of Vm interact with the Hardware/Software resource layers.

  4. ScreenMill: A freely available software suite for growth measurement, analysis and visualization of high-throughput screen data

    Directory of Open Access Journals (Sweden)

    Rothstein Rodney

    2010-06-01

    Full Text Available Abstract Background Many high-throughput genomic experiments, such as Synthetic Genetic Array and yeast two-hybrid, use colony growth on solid media as a screen metric. These experiments routinely generate over 100,000 data points, making data analysis a time consuming and painstaking process. Here we describe ScreenMill, a new software suite that automates image analysis and simplifies data review and analysis for high-throughput biological experiments. Results The ScreenMill, software suite includes three software tools or "engines": an open source Colony Measurement Engine (CM Engine to quantitate colony growth data from plate images, a web-based Data Review Engine (DR Engine to validate and analyze quantitative screen data, and a web-based Statistics Visualization Engine (SV Engine to visualize screen data with statistical information overlaid. The methods and software described here can be applied to any screen in which growth is measured by colony size. In addition, the DR Engine and SV Engine can be used to visualize and analyze other types of quantitative high-throughput data. Conclusions ScreenMill automates quantification, analysis and visualization of high-throughput screen data. The algorithms implemented in ScreenMill are transparent allowing users to be confident about the results ScreenMill produces. Taken together, the tools of ScreenMill offer biologists a simple and flexible way of analyzing their data, without requiring programming skills.

  5. High Availability Cluster of Linux Based on DRBD%基于DRBD的Linux高可用集群

    Institute of Scientific and Technical Information of China (English)

    巩天宁; 周书明

    2012-01-01

    Analyzing traditional high availability cluster,designing a project based on free open-source software heartbeat and DRBD to solve traditional HA-cluster's deficiency on cost,using heartbeat to construct high availability cluster,using DRBD to synchronize data between cluster's nodes,constructing and testing an FTP HA-cluster based on this design,giving an resolution to brain-split.%文章分析了传统高可用性集群,针对其成本较高的缺点提出了使用免费开源软件heartbeat构造高可用集群、DR BD在集群节点之间同步数据以取代共享磁盘的方案,并设计使用该方案构建高可用FTP集群的实例,通过测试确认该方案的可行性,最后给出集群脑裂的解决方法。

  6. Improved virus removal by high-basicity polyaluminum coagulants compared to commercially available aluminum-based coagulants.

    Science.gov (United States)

    Shirasaki, N; Matsushita, T; Matsui, Y; Oshiba, A; Marubayashi, T; Sato, S

    2014-01-01

    We investigated the effects of basicity, sulfate content, and aluminum hydrolyte species on the ability of polyaluminum chloride (PACl) coagulants to remove F-specific RNA bacteriophages from river water at a pH range of 6-8. An increase in PACl basicity from 1.5 to 2.1 and the absence of sulfate led to a reduction of the amount of monomeric aluminum species (i.e., an increase of the total amount of polymeric aluminum and colloidal aluminum species) in the PACl, to an increase in the colloid charge density of the PACl, or to both and, as a result, to high virus removal efficiency. The efficiency of virus removal at around pH 8 observed with PACl-2.1c, a nonsulfated high-basicity PACl (basicity 2.1-2.2) with a high colloidal aluminum content, was larger than that observed with PACl-2.1b, a nonsulfated high-basicity PACl (basicity 2.1-2.2) with a high polymeric aluminum content. In contrast, although extremely high basicity PACls (e.g., PACl-2.7ns, basicity 2.7) effectively removed turbidity and UV260-absorbing natural organic matter and resulted in a very low residual aluminum concentration, the virus removal ratio with PACl-2.7ns was smaller than the ratio with PACl-2.1c at around pH 8, possibly as a result of a reduction of the colloid charge density of the PACl as the basicity was increased from 2.1 to 2.7. Liquid (27)Al NMR analysis revealed that PACl-2.1c contained Al30 species, which was not the case for PACl-2.1b or PACl-2.7ns. This result suggests that Al30 species probably played a major role in virus removal during the coagulation process. In summary, PACl-2.1c, which has high colloidal aluminum content, contains Al30 species, and has a high colloid charge density, removed viruses more efficiently (>4 log10 for infectious viruses) than the other aluminum-based coagulants-including commercially available PACls (basicity 1.5-1.8), alum, and PACl-2.7ns-over the entire tested pH (6-8) and coagulant dosage (0.54-5.4 mg-Al/L) ranges.

  7. High-power ultrafast Yb:fiber laser frequency combs using commercially available components and basic fiber tools

    Science.gov (United States)

    Li, Xinlong; Reber, Melanie A. R.; Corder, Christopher; Chen, Yuning; Zhao, Peng; Allison, Thomas K.

    2016-09-01

    We present a detailed description of the design, construction, and performance of high-power ultrafast Yb:fiber laser frequency combs in operation in our laboratory. We discuss two such laser systems: an 87 MHz, 9 W, 85 fs laser operating at 1060 nm and an 87 MHz, 80 W, 155 fs laser operating at 1035 nm. Both are constructed using low-cost, commercially available components, and can be assembled using only basic tools for cleaving and splicing single-mode fibers. We describe practical methods for achieving and characterizing low-noise single-pulse operation and long-term stability from Yb:fiber oscillators based on nonlinear polarization evolution. Stabilization of the combs using a variety of transducers, including a new method for tuning the carrier-envelope offset frequency, is discussed. High average power is achieved through chirped-pulse amplification in simple fiber amplifiers based on double-clad photonic crystal fibers. We describe the use of these combs in several applications, including ultrasensitive femtosecond time-resolved spectroscopy and cavity-enhanced high-order harmonic generation.

  8. High phosphate availability as a possible cause for massive cyanobacterial production of oxygen in the Paleoproterozoic atmosphere

    Science.gov (United States)

    Papineau, Dominic; Purohit, Ritesh; Fogel, Marilyn L.; Shields-Zhou, Graham A.

    2013-01-01

    have arisen from the biological response to high phosphate availability. We conclude that increased phosphate availability during and after the Paleoproterozoic Lomagundi-Jatuli event likely caused cyanobacterial blooms and was a key factor in the oxygenation of Earth's atmosphere. Increasing oxygenation of the shallow ocean seafloor favored the removal of excess phosphate as authigenic apatite, thus dampening effects of weathering increases on organic burial and marine δ13Ccarb after about 2.0 Ga.

  9. Statistical analysis of the limitation of half integer resonances on the available momentum acceptance of the High Energy Photon Source

    Science.gov (United States)

    Jiao, Yi; Duan, Zhe

    2017-01-01

    In a diffraction-limited storage ring, half integer resonances can have strong effects on the beam dynamics, associated with the large detuning terms from the strong focusing and strong sextupoles as required for an ultralow emittance. In this study, the limitation of half integer resonances on the available momentum acceptance (MA) was statistically analyzed based on one design of the High Energy Photon Source (HEPS). It was found that the probability of MA reduction due to crossing of half integer resonances is closely correlated with the level of beta beats at the nominal tunes, but independent of the error sources. The analysis indicated that for the presented HEPS lattice design, the rms amplitude of beta beats should be kept below 1.5% horizontally and 2.5% vertically to reach a small MA reduction probability of about 1%.

  10. Identification of Microorganisms in Duck Meat Products Available in Korea and the Effect of High Hydrostatic Pressure.

    Science.gov (United States)

    Kim, Hyun-Joo; Yong, Hae In; Lee, Hyun Jung; Jung, Samooel; Kwon, Joong-Ho; Heo, Kang Nyung; Jo, Cheorun

    2016-01-01

    The objective of this study was to investigate the microbial count of duck meat and duck meat products commercially available in Korea. High hydrostatic pressure (HHP) treatment was applied at 0.1, 300, 400, and 500 MPa for 5 min to enhance the microbiological safety of duck meats. The levels of total aerobic bacteria were in the ranges of 3.53-6.19 and 3.62-6.85 Log CFU/g in raw and smoked duck products, respectively. By DNA sequence analysis, we identified microorganisms responsible for spoilage, with the most common species in the raw and smoked duck products being Aeromonas spp. or Pseudomonas spp. and Leuconostoc mesenteroides, respectively. HHP treatment significantly reduced the levels of total aerobic bacteria in raw and smoked duck products. This study demonstrates that HHP treatment may be used to effectively improve the safety of raw and smoked duck meat products.

  11. Abnormally High Content of Free Glucosamine Residues Identified in a Preparation of Commercially Available Porcine Intestinal Heparan Sulfate.

    Science.gov (United States)

    Mulloy, Barbara; Wu, Nian; Gyapon-Quast, Frederick; Lin, Lei; Zhang, Fuming; Pickering, Matthew C; Linhardt, Robert J; Feizi, Ten; Chai, Wengang

    2016-07-05

    Heparan sulfate (HS) polysaccharides are ubiquitous in animal tissues as components of proteoglycans, and they participate in many important biological processes. HS carbohydrate chains are complex and can contain rare structural components such as N-unsubstituted glucosamine (GlcN). Commercially available HS preparations have been invaluable in many types of research activities. In the course of preparing microarrays to include probes derived from HS oligosaccharides, we found an unusually high content of GlcN residue in a recently purchased batch of porcine intestinal mucosal HS. Composition and sequence analysis by mass spectrometry of the oligosaccharides obtained after heparin lyase III digestion of the polysaccharide indicated two and three GlcN in the tetrasaccharide and hexasaccharide fractions, respectively. (1)H NMR of the intact polysaccharide showed that this unusual batch differed strikingly from other HS preparations obtained from bovine kidney and porcine intestine. The very high content of GlcN (30%) and low content of GlcNAc (4.2%) determined by disaccharide composition analysis indicated that N-deacetylation and/or N-desulfation may have taken place. HS is widely used by the scientific community to investigate HS structures and activities. Great care has to be taken in drawing conclusions from investigations of structural features of HS and specificities of HS interaction with proteins when commercial HS is used without further analysis. Pending the availability of a validated commercial HS reference preparation, our data may be useful to members of the scientific community who have used the present preparation in their studies.

  12. Abnormally High Content of Free Glucosamine Residues Identified in a Preparation of Commercially Available Porcine Intestinal Heparan Sulfate

    Science.gov (United States)

    2016-01-01

    Heparan sulfate (HS) polysaccharides are ubiquitous in animal tissues as components of proteoglycans, and they participate in many important biological processes. HS carbohydrate chains are complex and can contain rare structural components such as N-unsubstituted glucosamine (GlcN). Commercially available HS preparations have been invaluable in many types of research activities. In the course of preparing microarrays to include probes derived from HS oligosaccharides, we found an unusually high content of GlcN residue in a recently purchased batch of porcine intestinal mucosal HS. Composition and sequence analysis by mass spectrometry of the oligosaccharides obtained after heparin lyase III digestion of the polysaccharide indicated two and three GlcN in the tetrasaccharide and hexasaccharide fractions, respectively. 1H NMR of the intact polysaccharide showed that this unusual batch differed strikingly from other HS preparations obtained from bovine kidney and porcine intestine. The very high content of GlcN (30%) and low content of GlcNAc (4.2%) determined by disaccharide composition analysis indicated that N-deacetylation and/or N-desulfation may have taken place. HS is widely used by the scientific community to investigate HS structures and activities. Great care has to be taken in drawing conclusions from investigations of structural features of HS and specificities of HS interaction with proteins when commercial HS is used without further analysis. Pending the availability of a validated commercial HS reference preparation, our data may be useful to members of the scientific community who have used the present preparation in their studies. PMID:27295282

  13. Realizing IoT service's policy privacy over publish/subscribe-based middleware.

    Science.gov (United States)

    Duan, Li; Zhang, Yang; Chen, Shiping; Wang, Shiyao; Cheng, Bo; Chen, Junliang

    2016-01-01

    The publish/subscribe paradigm makes IoT service collaborations more scalable and flexible, due to the space, time and control decoupling of event producers and consumers. Thus, the paradigm can be used to establish large-scale IoT service communication infrastructures such as Supervisory Control and Data Acquisition systems. However, preserving IoT service's policy privacy is difficult in this paradigm, because a classical publisher has little control of its own event after being published; and a subscriber has to accept all the events from the subscribed event type with no choice. Few existing publish/subscribe middleware have built-in mechanisms to address the above issues. In this paper, we present a novel access control framework, which is capable of preserving IoT service's policy privacy. In particular, we adopt the publish/subscribe paradigm as the IoT service communication infrastructure to facilitate the protection of IoT services policy privacy. The key idea in our policy-privacy solution is using a two-layer cooperating method to match bi-directional privacy control requirements: (a) data layer for protecting IoT events; and (b) application layer for preserving the privacy of service policy. Furthermore, the anonymous-set-based principle is adopted to realize the functionalities of the framework, including policy embedding and policy encoding as well as policy matching. Our security analysis shows that the policy privacy framework is Chosen-Plaintext Attack secure. We extend the open source Apache ActiveMQ broker by building into a policy-based authorization mechanism to enforce the privacy policy. The performance evaluation results indicate that our approach is scalable with reasonable overheads.

  14. Design and Application of RFID Middleware in Storage Management%面向仓储管理的RFID中间件的设计与应用

    Institute of Scientific and Technical Information of China (English)

    班贺; 袁红兵

    2016-01-01

    RFID中间件是RFID系统的核心,是连接企业应用管理系统与标签阅读器的桥梁。针对某电力物资仓库信息化改造项目,设计实现了一种轻量级RFID中间件。经实际应用表明,该中间件占用系统资源少、性能良好。%The RFlD middleware is the nerve core of RFlD system, which is a bridge connecting the applied management system and the tag readers in the enterprises. A light weight RFlD middleware is designed for a transformation project in an electric material warehouse. Practical application shows that the middleware occupies less resources in the system, and operates wel .

  15. Incorporating wind availability into land use regression modelling of air quality in mountainous high-density urban environment.

    Science.gov (United States)

    Shi, Yuan; Lau, Kevin Ka-Lun; Ng, Edward

    2017-08-01

    Urban air quality serves as an important function of the quality of urban life. Land use regression (LUR) modelling of air quality is essential for conducting health impacts assessment but more challenging in mountainous high-density urban scenario due to the complexities of the urban environment. In this study, a total of 21 LUR models are developed for seven kinds of air pollutants (gaseous air pollutants CO, NO2, NOx, O3, SO2 and particulate air pollutants PM2.5, PM10) with reference to three different time periods (summertime, wintertime and annual average of 5-year long-term hourly monitoring data from local air quality monitoring network) in Hong Kong. Under the mountainous high-density urban scenario, we improved the traditional LUR modelling method by incorporating wind availability information into LUR modelling based on surface geomorphometrical analysis. As a result, 269 independent variables were examined to develop the LUR models by using the "ADDRESS" independent variable selection method and stepwise multiple linear regression (MLR). Cross validation has been performed for each resultant model. The results show that wind-related variables are included in most of the resultant models as statistically significant independent variables. Compared with the traditional method, a maximum increase of 20% was achieved in the prediction performance of annual averaged NO2 concentration level by incorporating wind-related variables into LUR model development. Copyright © 2017 Elsevier Inc. All rights reserved.

  16. Favorable cardio-metabolic outcomes following high carbohydrate intake in accordance with the Daniel Fast: A review of available findings

    Directory of Open Access Journals (Sweden)

    Richard Bloomer

    2017-03-01

    Full Text Available The Daniel Fast is a biblically inspired dietary program rich in carbohydrate, most closely resembling a vegan diet but with additional restrictions, including the elimination of processed foods, white flour products, preservatives, additives, sweeteners, caffeine, and alcohol. While no specific requirements are placed on the ingestion of specific percentages of macronutrients, the mean daily carbohydrate intake is by default approximately 60%, while protein and fat intake are 15% and 25%, respectively. Despite a relatively high carbohydrate intake, multiple favorable cardio-metabolic effects are noted when following the plan, in as few as three weeks. This includes improvements in HOMA-IR, which may be at least in part due to the lower glycemic load and high dietary fiber content of the foods consumed. Other notable changes include reductions in systemic inflammation, total and LDL-cholesterol, oxidative stress, blood pressure, and body weight/body fat. Short and moderate-term compliance to the program is excellent-better than most dietary programs, perhaps due to the ad libitum nature of this plan. This paper presents an overview of the Daniel Fast, a carbohydrate-rich dietary program, including relevant findings from both human and animal investigations using this dietary model.

  17. High-power ultrafast Yb:fiber laser frequency combs using commercially available components and basic fiber tools

    CERN Document Server

    Li, X L; Corder, C; Chen, Y; Zhao, P; Allison, T K

    2016-01-01

    We present a detailed description of the design, construction, and performance of high-power ultrafast Yb:fiber laser frequency combs in operation in our laboratory. We discuss two such laser systems: an 87 MHz, 9 W, 85 fs laser operating at 1060 nm and an 87 MHz, 80 W, 155 fs laser operating at 1035 nm. Both are constructed using low-cost, commercially available components, and can be assembled using only basic tools for cleaving and splicing single-mode fibers. We describe practical methods for achieving and characterizing low-noise single-pulse operation and long-term stability from Yb:fiber oscillators based on nonlinear polarization evolution. Stabilization of the combs using a variety of transducers, including a new method for tuning the carrier-envelope offset frequency, is discussed. High average power is achieved through chirped-pulse amplification in simple fiber amplifiers based on double-clad photonic crystal fibers. We describe the use of these combs in several applications, including ultrasensit...

  18. Sphagnum-dominated bog systems are highly effective yet variable sources of bio-available iron to marine waters.

    Science.gov (United States)

    Krachler, Regina; Krachler, Rudolf F; Wallner, Gabriele; Steier, Peter; El Abiead, Yasin; Wiesinger, Hubert; Jirsa, Franz; Keppler, Bernhard K

    2016-06-15

    Iron is a micronutrient of particular interest as low levels of iron limit primary production of phytoplankton and carbon fluxes in extended regions of the world's oceans. Sphagnum-peatland runoff is extraordinarily rich in dissolved humic-bound iron. Given that several of the world's largest wetlands are Sphagnum-dominated peatlands, this ecosystem type may serve as one of the major sources of iron to the ocean. Here, we studied five near-coastal creeks in North Scotland using freshwater/seawater mixing experiments of natural creek water and synthetic seawater based on a (59)Fe radiotracer technique combined with isotopic characterization of dissolved organic carbon by Accelerator Mass Spectrometry. Three of the creeks meander through healthy Sphagnum-dominated peat bogs and the two others through modified peatlands which have been subject to artificial drainage for centuries. The results revealed that, at the time of sampling (August 16-24, 2014), the creeks that run through modified peatlands delivered 11-15μg iron per liter creek water to seawater, whereas the creeks that run through intact peatlands delivered 350-470μg iron per liter creek water to seawater. To find out whether this humic-bound iron is bio-available to marine algae, we performed algal growth tests using the unicellular flagellated marine prymnesiophyte Diacronema lutheri and the unicellular marine green alga Chlorella salina, respectively. In both cases, the riverine humic material provided a highly bio-available source of iron to the marine algae. These results add a new item to the list of ecosystem services of Sphagnum-peatlands.

  19. Sphagnum-dominated bog systems are highly effective yet variable sources of bio-available iron to marine waters

    Energy Technology Data Exchange (ETDEWEB)

    Krachler, Regina, E-mail: regina.krachler@univie.ac.at [Institute of Inorganic Chemistry, University of Vienna, Währingerstraße 42, 1090 Vienna (Austria); Krachler, Rudolf F.; Wallner, Gabriele [Institute of Inorganic Chemistry, University of Vienna, Währingerstraße 42, 1090 Vienna (Austria); Steier, Peter [Isotope Research and Nuclear Physics, University of Vienna, Währingerstraße 17, 1090 Vienna (Austria); El Abiead, Yasin; Wiesinger, Hubert [Institute of Inorganic Chemistry, University of Vienna, Währingerstraße 42, 1090 Vienna (Austria); Jirsa, Franz [Institute of Inorganic Chemistry, University of Vienna, Währingerstraße 42, 1090 Vienna (Austria); University of Johannesburg, Department of Zoology, P. O. Box 524, Auckland Park 2006 (South Africa); Keppler, Bernhard K. [Institute of Inorganic Chemistry, University of Vienna, Währingerstraße 42, 1090 Vienna (Austria)

    2016-06-15

    Iron is a micronutrient of particular interest as low levels of iron limit primary production of phytoplankton and carbon fluxes in extended regions of the world's oceans. Sphagnum-peatland runoff is extraordinarily rich in dissolved humic-bound iron. Given that several of the world's largest wetlands are Sphagnum-dominated peatlands, this ecosystem type may serve as one of the major sources of iron to the ocean. Here, we studied five near-coastal creeks in North Scotland using freshwater/seawater mixing experiments of natural creek water and synthetic seawater based on a {sup 59}Fe radiotracer technique combined with isotopic characterization of dissolved organic carbon by Accelerator Mass Spectrometry. Three of the creeks meander through healthy Sphagnum-dominated peat bogs and the two others through modified peatlands which have been subject to artificial drainage for centuries. The results revealed that, at the time of sampling (August 16–24, 2014), the creeks that run through modified peatlands delivered 11–15 μg iron per liter creek water to seawater, whereas the creeks that run through intact peatlands delivered 350–470 μg iron per liter creek water to seawater. To find out whether this humic-bound iron is bio-available to marine algae, we performed algal growth tests using the unicellular flagellated marine prymnesiophyte Diacronema lutheri and the unicellular marine green alga Chlorella salina, respectively. In both cases, the riverine humic material provided a highly bio-available source of iron to the marine algae. These results add a new item to the list of ecosystem services of Sphagnum-peatlands. - Highlights: • We report that peat-bogs are sources of bio-available iron to marine algae. • This iron is effectively chelated with aquatic humic acids. • The radiocarbon age of the iron-carrying aquatic humic acids was up to 550 years. • Analysis was focused on mixing experiments of iron-rich creek water with seawater. • Drained

  20. NOAA Operational Model Archive Distribution System (NOMADS): High Availability Applications for Reliable Real Time Access to Operational Model Data

    Science.gov (United States)

    Alpert, J. C.; Wang, J.

    2009-12-01

    To reduce the impact of natural hazards and environmental changes, the National Centers for Environmental Prediction (NCEP) provide first alert and a preferred partner for environmental prediction services, and represents a critical national resource to operational and research communities affected by climate, weather and water. NOMADS is now delivering high availability services as part of NOAA’s official real time data dissemination at its Web Operations Center (WOC) server. The WOC is a web service used by organizational units in and outside NOAA, and acts as a data repository where public information can be posted to a secure and scalable content server. A goal is to foster collaborations among the research and education communities, value added retailers, and public access for science and development efforts aimed at advancing modeling and GEO-related tasks. The user (client) executes what is efficient to execute on the client and the server efficiently provides format independent access services. Client applications can execute on the server, if it is desired, but the same program can be executed on the client side with no loss of efficiency. In this way this paradigm lends itself to aggregation servers that act as servers of servers listing, searching catalogs of holdings, data mining, and updating information from the metadata descriptions that enable collections of data in disparate places to be simultaneously accessed, with results processed on servers and clients to produce a needed answer. The services used to access the operational model data output are the Open-source Project for a Network Data Access Protocol (OPeNDAP), implemented with the Grid Analysis and Display System (GrADS) Data Server (GDS), and applications for slicing, dicing and area sub-setting the large matrix of real time model data holdings. This approach insures an efficient use of computer resources because users transmit/receive only the data necessary for their tasks including

  1. Research and design of Web service-based matter-centric middleware in Internet of Things%基于Web服务以物为中心的物联网中间件的研究与设计

    Institute of Scientific and Technical Information of China (English)

    郑树泉; 王倩; 丁志刚

    2013-01-01

    针对物联网(IOT)发展所面临的层次间耦合性高、重用性低、海量数据处理难的问题,提出一种基于Web服务物联网中间件模型,采用XML文件实现配置与执行逻辑分离,利用物联网中“物”的应用属性为划分功能逻辑实现功能模块化,运用负载均衡实现分布处理海量数据,以角色权限设定确保信息安全.实验结果表明,该中间件模型降低了对物联网网关类型的依赖性,提高程序的复用性,实现了万级数据量的处理.根据该模型研发的中间件系统在车辆监控应用中,降低了应用开发成本,提高开发效率,并体现了系统的灵活可配置的实用效果.%To solve the problems in Internet of Things (IOT),such as high coupling between levels,low reusability and massive data processing difficulty,this paper proposed a Web service-based middleware model of IOT.It used XML file to configure and implement logical separation,achieved function modularization by the application of " object" in IOT,distributedly processed massive data by load balance,and ensured information security by role permissions setting.The experimental results show that,the middleware model reduces reliance on the type of gateway,improves the reusability of the program and achieves ten-thousand data processing.According to the application of middleware system developed by the model in the vehicle monitoring,the cost of development is reduced,the efficiency of development is improved and the system has a flexible configuration.

  2. Interactive access to LP DAAC satellite data archives through a combination of open-source and custom middleware web services

    Science.gov (United States)

    Davis, Brian N.; Werpy, Jason; Friesz, Aaron M.; Impecoven, Kevin; Quenzer, Robert; Maiersperger, Tom; Meyer, David J.

    2015-01-01

    Current methods of searching for and retrieving data from satellite land remote sensing archives do not allow for interactive information extraction. Instead, Earth science data users are required to download files over low-bandwidth networks to local workstations and process data before science questions can be addressed. New methods of extracting information from data archives need to become more interactive to meet user demands for deriving increasingly complex information from rapidly expanding archives. Moving the tools required for processing data to computer systems of data providers, and away from systems of the data consumer, can improve turnaround times for data processing workflows. The implementation of middleware services was used to provide interactive access to archive data. The goal of this middleware services development is to enable Earth science data users to access remote sensing archives for immediate answers to science questions instead of links to large volumes of data to download and process. Exposing data and metadata to web-based services enables machine-driven queries and data interaction. Also, product quality information can be integrated to enable additional filtering and sub-setting. Only the reduced content required to complete an analysis is then transferred to the user.

  3. 基于Web的异构同步中间件系统%Heterogeneous Synchronization Middleware System Based on Web

    Institute of Scientific and Technical Information of China (English)

    梅明

    2015-01-01

    当前的信息管理系统越来越庞大,有的系统会涉及到几十个部门,而且每个部门都会使用不同的数据库系统,如何保证分布式异构数据库之间数据的同步,是一个严峻的问题。基于Rabbitmq和Redis技术设计实现异构数据库数据同步中间件,并将其应用到湖北省农村信息化示范省项目中,取得良好效果。%Current information management systems become more and more huge. Some of them involve dozens of departments and each department uses different database. How to keep data synchronization of distributed heterogeneous database is a serious problem. Designs and realizes a data synchronization middleware of heterogeneous database based on Rabbitmq and REDIUS technique. Applies the middleware to Hubei province rural information demonstration project, achieves good effect.

  4. Design and Realization of EPC Network Savant Middleware%EPC网络Savant中间件的设计与实现

    Institute of Scientific and Technical Information of China (English)

    李联宁; 杨程程

    2011-01-01

    通过融合物联网、EPC(产品电子码)、RFID(射频识别)、PML(物理标识语言)、Savant中间件等一系列新技术,研究与实现了一种Savant中间件系统,可同时读出EPC编码的多个物品的基础数据,并在进行计算后将数据存入/取出数据库.文章详细描述了使用物理标示语言(PML)从多个EPC标签中获取信息、进行计算操作、完成信息改变、及时更新数据库信息的技术过程.%Through integrating the internet of things technology, EPC (Electronic Product Code), RFID (radio frequency identification), PML (physical markup language), Savant middleware and a series of other new technologies, the paper studies and develops a Savant middleware system which can read the basic data of multiple items in EPC coding at once and stores the data in the database after calculation. The paper then describes the use of physical markup language (PML) to obtain information from multiple EPC tags, to complete the information changes and computation operations, and to update database information.

  5. [Not Available].

    Science.gov (United States)

    1992-03-25

    Archersstar Sudha Bhuchar, right, launches a video on breast screening for women from ethnic minorities, sponsored by the NHS. The video is available in six languages. Ms Bhuchar is pictured with programme co-ordinator Julietta Patrick.

  6. Places available**

    CERN Multimedia

    2003-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval tel. 74924 technical.training@cern.ch ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses: ACCESS 2000 - niveau 1 : 13 & 14.11.03 (2 jours) C++ for Particle Physicists : 17 – 21.11.03 (6 X 3-hour lectures) Programmation automate Schneider TSX Premium – niveau 2 : 18 – 21.11.03 (4 jours) JAVA 2 Enterprise Edition – Part 1 : WEB Applications : 20 & ...

  7. Implementation and use of a highly available and innovative IaaS solution: the Cloud Area Padovana

    Science.gov (United States)

    Aiftimiei, C.; Andreetto, P.; Bertocco, S.; Biasotto, M.; Dal Pra, S.; Costa, F.; Crescente, A.; Dorigo, A.; Fantinel, S.; Fanzago, F.; Frizziero, E.; Gulmini, M.; Michelotto, M.; Sgaravatto, M.; Traldi, S.; Venaruzzo, M.; Verlato, M.; Zangrando, L.

    2015-12-01

    While in the business world the cloud paradigm is typically implemented purchasing resources and services from third party providers (e.g. Amazon), in the scientific environment there's usually the need of on-premises IaaS infrastructures which allow efficient usage of the hardware distributed among (and owned by) different scientific administrative domains. In addition, the requirement of open source adoption has led to the choice of products like OpenStack by many organizations. We describe a use case of the Italian National Institute for Nuclear Physics (INFN) which resulted in the implementation of a unique cloud service, called ’Cloud Area Padovana’, which encompasses resources spread over two different sites: the INFN Legnaro National Laboratories and the INFN Padova division. We describe how this IaaS has been implemented, which technologies have been adopted and how services have been configured in high-availability (HA) mode. We also discuss how identity and authorization management were implemented, adopting a widely accepted standard architecture based on SAML2 and OpenID: by leveraging the versatility of those standards the integration with authentication federations like IDEM was implemented. We also discuss some other innovative developments, such as a pluggable scheduler, implemented as an extension of the native OpenStack scheduler, which allows the allocation of resources according to a fair-share based model and which provides a persistent queuing mechanism for handling user requests that can not be immediately served. Tools, technologies, procedures used to install, configure, monitor, operate this cloud service are also discussed. Finally we present some examples that show how this IaaS infrastructure is being used.

  8. Arra: Tas::89 0227::Tas Recovery Act 100g Ftp: An Ultra-High Speed Data Transfer Service Over Next Generation 100 Gigabit Per Second Network

    Energy Technology Data Exchange (ETDEWEB)

    YU, DANTONG [Brookhaven National Lab/Stony Brook University; Jin, Shudong [Stony Brook University

    2014-03-01

    Data-intensive applications, including high energy and nuclear physics, astrophysics, climate modeling, nano-scale materials science, genomics, and financing, are expected to generate exabytes of data over the coming years, which must be transferred, visualized, and analyzed by geographically distributed teams of users. High-performance network capabilities must be available to these users at the application level in a transparent, virtualized manner. Moreover, the application users must have the capability to move large datasets from local and remote locations across network environments to their home institutions. To solve these challenges, the main goal of our project is to design and evaluate high-performance data transfer software to support various data-intensive applications. First, we have designed a middleware software that provides access to Remote Direct Memory Access (RDMA) functionalities. This middleware integrates network access, memory management and multitasking in its core design. We address a number of issues related to its efficient implementation, for instance, explicit buffer management and memory registration, and parallelization of RDMA operations, which are vital to delivering the benefit of RDMA to the applications. Built on top of this middleware, an implementation and experimental evaluation of the RDMA-based FTP software, RFTP, is described and evaluated. This application has been implemented by our team to exploit the full capabilities of advanced RDMA mechanisms for ultra-high speed bulk data transfer applications on Energy Sciences Network (ESnet). Second, we designed our data transfer software to optimize TCP/IP based data transfer performance such that RFTP can be fully compatible with today’s Internet. Our kernel optimization techniques with Linux system calls sendfile and splice, can reduce data copy cost. In this report, we summarize the technical challenges of our project, the primary software design methods, the major

  9. Places available

    CERN Multimedia

    2004-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. Places available The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses : Introduction à Outlook : 19.8.2004 (1 journée) Outlook (short course I) : E-mail : 31.8.2004 (2 hours, morning) Outlook (short course II) : Calendar, Tasks and Notes : 31.8.2004 (2 hours, afternoon) Instructor-led WBTechT Study or Follow-up for Microsoft Applications : 7.9.2004 (morning) Outlook (short course III) : Meetings and Delegation : 7.9.2004 (2 hours, afternoon) Introduction ...

  10. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: C++ Programming Level 2 - Traps & Pitfalls:  16 - 19.7.02 (4 days) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. Technical Training Monique Duval Tel.74924 monique.duval@cern.ch

  11. 77 FR 64183 - Notice of Availability of a Final General Conformity Determination for the California High-Speed...

    Science.gov (United States)

    2012-10-18

    ... California High-Speed Train System Merced to Fresno Section AGENCY: Federal Railroad Administration (FRA... Section of the California High-Speed Train (HST) System on September 18, 2012. FRA is the lead Federal... General Conformity requirements. The California High Speed Rail Authority (Authority), as the...

  12. Places available**

    CERN Multimedia

    2003-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval Tel. 74924technical.training@cern.ch ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses: MATLAB Fundamentals and Programming Techniques (ML01) : 2 & 3.12.03 (2 days) Oracle 8i : SQL : 3 - 5.12.03 (3 days) The EDMS MTF in practice : 5.12.03 (afternoon, free of charge) Modeling Dynamic Systems with Simulink (SL01) : 8 & 9.12.03 (2 days) Signal Processing with MATLAB (SG01) : 11 & 12.12.03 (2 days) The JAVA Programming Language - l...

  13. Places available**

    CERN Multimedia

    2003-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval Tel. 74924 technical.training@cern.ch ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses: JAVA 2 Enterprise Edition - Part 1 : WEB Applications : 20 & 21.11.03(2 days) FrontPage 2000 - niveau 1 : 20 & 21.11.03 (2 jours) Oracle 8i : SQL : 3 - 5.12.03 (3 days) Oracle 8i : Programming with PL/SQL : 8 - 10.12.03 (3 days) The JAVA Programming Language - leve...

  14. Places available**

    CERN Multimedia

    2004-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval tel. 74924 technical.training@cern.ch ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses: The JAVA Programming Language Level 1 :9 & 10.1.2004 (2 days) The JAVA Programming Language Level 2 : 11 to 13.1.2004 (3 days) Hands-on Introduction to Python Programming : 16 - 18.2.2004 (3 days - free of charge) CLEAN-2002 : Working in a Cleanroom : 10.3.2004 (afternoon - free of charge) C++ for Particle Physicists : 8 - 12.3.2004...

  15. Places available**

    CERN Multimedia

    2003-01-01

    If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses : EXCEL 2000 - niveau 1 : 20 & 22.10.03 (2 jours) CLEAN-2002 : Working in a Cleanroom (free of charge) : 23.10.03 (half day) The EDMS-MTF in practice (free of charge) :  28 -  30.10.03 (6 half-day sessions) AutoCAD 2002 - Level 1 : 3, 4, 12, 13.11.03 (4 days) LabVIEW TestStand ver. 3 : 4 & 5.11.03 (2 days) Introduction to Pspice : 4.11.03 p.m. (half-day) Hands-on Introduction to Python Programm...

  16. Places available**

    CERN Multimedia

    2003-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval tel. 74924 technical.training@cern.ch ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses: MATLAB Fundamentals and Programming Techniques (ML01) :2 & 3.12.03 (2 days) Oracle 8i : SQL : 3 - 5.12.03 (3 days) The EDMS MTF in practice : 5.12.03 (afternoon, free of charge) Modeling Dynamic Systems with Simulink (SL01) : 8 & 9.12.03 (2 days) Signal Processing with MATLAB (SG01) : 11 & ...

  17. Places available**

    CERN Multimedia

    2003-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval tel. 74924 technical.training@cern.ch ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses: Project Planning with MS-Project : 15 & 22.1.2004 (2 days) Joint PVSS JCOP Framework Course : 2 sessions : 2 - 6.2.2004 and 16 - 20-2-2004 (5 days) Hands-on Introduction to Python Programming : 16 - 18.2.2004 (3 days - free of charge) C++ for Particle Physicists : 8 - 12.3.2004 ( 6 X 4-hour sessions)

  18. Places available**

    CERN Multimedia

    2004-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.TECHNICAL TRAINING Monique Duval tel. 74924 technical.training@cern.ch ** The number of places available may vary. Please check our Web site to find out the current availability. Places are available in the following courses: The JAVA Programming Language Level 1 : 9 & 10.1.2004 (2 days) The JAVA Programming Language Level 2 : 11 to 13.1.2004 (3 days) LabVIEW base 1 : 25 - 27.2.2004 (3 jours) CLEAN-2002 : Working in a Cleanroom : 10.3.2004 (afternoon - free of charge) C++ for Particle Physicists : 8 - 12.3.2004 ( 6 X 4-hour sessions) LabVIEW Basics 1 : 22 - 24.3.20...

  19. Next-generation phage display: integrating and comparing available molecular tools to enable cost-effective high-throughput analysis.

    Directory of Open Access Journals (Sweden)

    Emmanuel Dias-Neto

    Full Text Available BACKGROUND: Combinatorial phage display has been used in the last 20 years in the identification of protein-ligands and protein-protein interactions, uncovering relevant molecular recognition events. Rate-limiting steps of combinatorial phage display library selection are (i the counting of transducing units and (ii the sequencing of the encoded displayed ligands. Here, we adapted emerging genomic technologies to minimize such challenges. METHODOLOGY/PRINCIPAL FINDINGS: We gained efficiency by applying in tandem real-time PCR for rapid quantification to enable bacteria-free phage display library screening, and added phage DNA next-generation sequencing for large-scale ligand analysis, reporting a fully integrated set of high-throughput quantitative and analytical tools. The approach is far less labor-intensive and allows rigorous quantification; for medical applications, including selections in patients, it also represents an advance for quantitative distribution analysis and ligand identification of hundreds of thousands of targeted particles from patient-derived biopsy or autopsy in a longer timeframe post library administration. Additional advantages over current methods include increased sensitivity, less variability, enhanced linearity, scalability, and accuracy at much lower cost. Sequences obtained by qPhage plus pyrosequencing were similar to a dataset produced from conventional Sanger-sequenced transducing-units (TU, with no biases due to GC content, codon usage, and amino acid or peptide frequency. These tools allow phage display selection and ligand analysis at >1,000-fold faster rate, and reduce costs approximately 250-fold for generating 10(6 ligand sequences. CONCLUSIONS/SIGNIFICANCE: Our analyses demonstrates that whereas this approach correlates with the traditional colony-counting, it is also capable of a much larger sampling, allowing a faster, less expensive, more accurate and consistent analysis of phage enrichment. Overall

  20. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: C++ Programming Level 2 - Traps & Pitfalls:  16 - 19.7.02 (4 days) Frontpage 2000 - level 1 :  22 - 23.7.02  (2 days) Introduction à Windows 2000 au CERN : 24.7.02 (après-midi) CLEAN-2002 : Travailler en salle blanche (cours gratuit) : 13.08.2002 (matin) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. Technical Training Monique Duval Tel.74924 monique.duval@cern.ch

  1. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: December 2002   PCAD Schémas - Débutants :  5 & 6.12.02  (2 jours) PCAD PCB - Débutants :  9 - 11.12.02  (3 jours) FrontPage 2000 - level 1:  9 & 10.12.02  (2 days) Introduction à la CAO Cadence (cours gratuit) :  10 & 11.12.02  (2 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. Technical Training Monique Duval Tel.74924 monique.duval@cern.ch

  2. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: CLEAN-2002 : Travailler en salle blanche (cours gratuit) : 13.08.2002 (matin) Introduction to the CERN Enginnering Data Management System :  27.8.02  (1 day) The CERN Engineering Data Management System for Advanced Users :  28.8.02  (1 day) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. Technical Training Monique Duval Tel.74924 monique.duval@cern.ch    

  3. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Introduction to Databases :  3 - 4.7.01 (2 days) The JAVA programming language Level 2 : 4 - 6.7.01 (3 days) Enterprise JavaBeans :  9 - 11.7.01 (3 days) Design Patterns :  10 - 12.7.01 (3 days) C++ for Particle Physicists :  23 - 27.7.01 (6 3-hour lectures) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : http://www.cern.ch/Training/ or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.

  4. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Introduction to Perl 5 : 2 - 3.7.01 (2 days) Introduction to Databases :  3 - 4.7.01 (2 days) JAVA programming language Level 2 : 4 - 6.7.01 (3 days) Enterprise JavaBeans :  9 - 11.7.01 (3 days) Design Patterns :  10 - 12.7.01 (3 days) C++ for Particle Physicists :  23 - 27.7.01 (6 3-hour lectures) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : http://www.cern.ch/Training/ or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.

  5. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses: Conception de PCB rapides dans le flot Cadence : 11.6.03 (matin) EXCEL 2000 - level 1 : 12 & 13.6.03 (2 days) Introduction to PVSS : 16.6.03 (p.m.) Basic PVSS : 17 - 19.6.03 (3 days) Réalisation de PCB rapides dans le flot Cadence : 17.6.03 (matin) PVSS - JCOP Framework Tutorial : 20.6.03 (1 day) Programmation automate Schneider : Programmation automate Schneider TSX Premium - 2ème niveau : 24 - 27.6.03 (4 jours) - audience : toute personne qui veux maitriser la mise en uvre et la programmation des fonctions spécialisées d'un automate TSX Premium - objectifs : maitriser la mise en uvre et la programmation des fonctions spécialisées d'un automate TSX Premium Cours de sécurité : Etre TSO au CERN : Prochaines sessions : 24, 25 & 27.6.03 - 4, 5 & 7.11.03 (session de 3 jours) ** The number of places available may vary. Please check our Web site to find out the current availability. If you wish to participate in one of these courses, pl...

  6. 异构财务系统中间件的研究与实现%Research and Realization of the Middleware of the Heterogeneous Financial System

    Institute of Scientific and Technical Information of China (English)

    高菲

    2015-01-01

    In order to solve the heterogeneity of the financial system and realize that the group can interview all the fi‐nancial systems of the subsidiary companies ,the Agent technology was introduced to the database integration middleware . The modules about the system integration middleware was designed based on the multi Agent technology ,and the operation process of the middleware system was analyzed ,the Agent communication in the middleware system was designed based on the XML .The tests about the financial system middleware designed in this paper showed that this financial system middle‐ware could solve the problems about the real time financial information inquired by the users and meet the requirements about the inquiring the financial data timely .%为了解决集团财务系统的异构性,使集团能够透明化访问各子公司财务系统,将 Agent 引入到数据库集成中间件中来,完成基于多 Agent 的系统集成中间件模型的设计,分析中间件系统运行流程,中间件系统中通信问题的设计,基于 XML 的 Agent 通信。通过测试表明论文所实现的财务系统中间件能较好地解决集团用户查询获取实时财务信息的问题,能满足用户“实时”查询财务数据的需求。

  7. 76 FR 18298 - Notice of Availability of a Final Environmental Impact Statement for the DesertXpress High-Speed...

    Science.gov (United States)

    2011-04-01

    ... Considering Environmental Impacts (64 FR 28545, May 26, 1999). The Bureau of Land Management (BLM), Surface... DesertXpress High-Speed Passenger Train Project AGENCY: Federal Railroad Administration (FRA), United... High-Speed Passenger Train Project (DesertXpress project). FRA is the Lead Agency for the...

  8. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: The CERN Engineering Data Management System for Advanced users :  13.6.02  (1 day) The CERN Engineering Data Management System for Local Administrators :  18.6.02  (1 day) AutoCAD 2002 - niveau 2 : 24 - 25.6.02 (2 jours) Frontpage 2000 - niveau 2 : 25 - 26.6.02 (2 jours) Object-oriented Analysis and Design :  2 - 5.7.02  (4 days) C++ Programming Level 2 - Traps & Pitfalls :  16 - 19.7.02  (4 days) C++ for Particle Physicists :  22 - 26.7.02  (6 * 3 hour lectures) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of the...

  9. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: LabView Hands-on (bilingue/bilingual - gratuit/free of charge) : 13.9.02 (a.m.) LabView DAQ Hands-on (bilingue/bilingual - gratuit/free of charge) : 13.9.02 (p.m.) AutoCAD 2002 - niveau 1 : 19, 20, 26, 27.9.02 (4 jours) LabView Base 1 : 23 - 25.9.02 (3 jours) LabView DAQ (E) : 26 - 27.9.02 (2 days) AutoCAD Mechanical 6 PowerPack (F) : 30.9, 1, 2, 9, 10, 11.10.02 (6 jours) CLEAN-2002 : Working in a Cleanroom (free of charge) : 10.10.02 (half-day, p.m.) AutoCAD 2002 - niveau 2 : 14 - 15.10.02 (2 jours) AutoCAD 2002 - Level 1 : 17, 18, 24, 25.10.02 (4 days) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Of...

  10. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Utilisation du simulateur Simplorer : 30.5 - 1.6.01 (3 jours) JAVA programming language level 1: 11-12.6.01 (2 days) LabView hands-on F ou E : 11.6.01 (1/2 journée) Comprehensive VHDL for EPLD/FPGA Design : 11 - 15.6.01 (5 days) Introduction au Langage C : 13 - 15.6.01 (3 jours) LabView Base 1 : 12 - 14.6.01 (3 jours) Habilitation électrique : superviseurs : 2 sessions d'une demi-journée les 12 et 19.6.01 Migration de LabVIEW 5 vers LabVIEW 6i Migration from LabVIEW 5 to LabVIEW 6I :  15.6.01 (1/2 journée/half-day) Introduction to Perl 5 : 2 - 3.7.01 (2 days) JAVA programming language level 2 : 4 - 6.7.01 (3 days) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : http://www.cern.ch/Training/ or fill in an 'application for training' form available from ...

  11. PLACES AVAILABLES

    CERN Document Server

    Technical Training; Tel. 74924

    2000-01-01

    Places are available in the following courses:   C++ for Particle Physicists 20 - 24.11.00 6 lectures CANbus 20.11.00 1 journée CANopen 21 et 22.11.00 2 jours Sécutiré dans les installations cryogéniques 21 et 22.11.00 2 demi-journées The JAVA programming language level 2 27 ­ 29.11.00 3 days Contract Follow-up 27.11.00 3 heures 1/2 Cryogénie (introduction) 4 ­ 8.12.00 ANSYS Introduction : langue a décider suivant majorité 5 ­ 7.12.00 3 jours EXCEL 7, 8, 13 et 14.12.00 4 jours Contract Follow-up 15.12.00 3 heures 1/2 If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : http://www.cern.ch/Training/ or fill in an “application for training” form available from your Divisional Secretariat or from your DTO (Divisional Training Officer)....

  12. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: Habilitation électrique : recyclage HT/BT : 11 - 15.3.2002  (2 * 2 heures) PVSS Basics :  8 - 12.4.02  (5 days) ELEC-2002 : Spring Term :  9, 11, 16, 18, 23, 25, 30.4.02 (7 * 2.5 hours) LabVIEW base 1 : 22 - 24.4.02 (3 jours) LabVIEW DSC (F) 25 & 26.4.02 (2 jours) LabVIEW Basics 2 : 13 & 14.5.02 (2 days) LabVIEW DAQ (F) : 15 & 16.5.02 (2 jours) Cours sur la migration AutoCAD :   AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé sur AutoCAD 2002 (5 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applica...

  13. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel 74924

    2002-01-01

    Places are available in the following courses: LabView hands-on : 21.01.02 (1/2 journée) LabView DAQ hands-on : 21.01.02 (1/2 journée) FileMaker Pro : 22 - 25.1.02 (4 jours) MS-Project 2000 : 24 & 25.01.02 (2 jours) Introduction au PC et à Windows 2000 au CERN : 29 - 30.1.02 (2 jours) LabView Base 1 : 4 - 6.2.02 (3 jours) LabView DAQ (E) : 7 & 8.02.02 (2 days) Hands-on Object-Oriented Design & Programming with Java : 11 - 13.02.02 (3 days) C++ for Particle Physicists : 11 - 15.3.2002 (6 * 3 hour lectures) Cours sur la migration AutoCAD : AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé sur AutoCAD 2002 (5 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO ...

  14. PLACES AVAILABLES

    CERN Multimedia

    Enseignement Technique; Tél. 74924; monique.duval@cern.ch

    2000-01-01

    Places are available in the following courses: LabView hands-on : 13.11.00 (4 hours) LabView Basics 1 : 14 ­ 16.11.00 (3 days) Nouveautés de WORD : 19 et 20.10.00 (2 jours) ACCESS 1er niveau : 30 ­ 31.10.00 (2 jours) Advanced C programming : 2 ­ 3.11.00 (2 days) Introduction à PowerPoint : 6.11.00 (1 journée) C++ for Particle Physicists : 20 ­ 24.11.00 (12 hours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : http://www.cern.ch/Training/ or fill in an “application for training” form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.

  15. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: PVSS basics :  18 - 22.2.02 (5 days) Introduction à la CAO CADENCE : 20 & 21.2.02 (2 jours) LabView Basics 1 :  4 - 6.3.02  (3 days) Introduction au VHDL et utilisation du simulateur de CADENCE : 6 & 7.3.02 (2 jours) LabView Base 2 : 11 & 12.3.02 (2 jours) C++ for Particle Physicists :  11 - 15.3.2002  (6 * 3 hour lectures) LabView Advanced :  13 - 15.3.02 (3 days) Cours sur la migration AutoCAD :   AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé sur AutoCAD 2002 (5 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO...

  16. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: Introduction à la CAO CADENCE : 20 & 21.2.02 (2 jours) LabView Basics 1 :  4 - 6.3.02  (3 days) Introduction au VHDL et utilisation du simulateur de CADENCE : 6 & 7.3.02 (2 jours) CLEAN-2002 : Working in a Clean Room :  7.3.2002  (1 day) LabView Base 2 : 11 & 12.3.02 (2 jours) C++ for Particle Physicists :  11 - 15.3.2002  (6 * 3 hour lectures) LabView Advanced :  13 - 15.3.02 (3 days) Cours sur la migration AutoCAD :   AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé sur AutoCAD 2002 (5 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisiona...

  17. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses: Hands-on Introduction to Python Programming: 11-13.08.2003(3 days) Introduction to the CERN Engineering Data Management System (EDMS): 26.08.2003 (1 day) The CERN Engineering Data Management System (EDMS) for Engineers: 27.08.2003 (1 day) CLEAN-2002 : Travailler en salle blanche : 4.09.2003 (une demi-journée) AutoCAD 2002 - Level 1: 4, 5, 15, 16.09.2003 (2 x 2 days) AutoCAD Mechanical 6 PowerPack : 17, 18, 25, 26.09.2003 et 2, 3.10.2003 (3 x 2 journées, français) AutoCAD 2002 - niveau 1 : 23, 24, 30.09.2003 et 1.10.2003 (2 x 2 journées) Introduction to the CERN Engineering Data Management System (EDMS): 23.09.2003 (1 day) The CERN Engineering Data Management System (EDMS) for Local Administrators: 24-25.09.2003 (2 days) AutoCAD 2002 - niveau 2 : 8 et 10.10.2003 (2 journées) CLEAN-2002: Working in a Cleanroom: 23.10.2003 (half day, p.m.) ** The number of places available may vary. Please ch...

  18. Places available**

    CERN Multimedia

    Places are available in the following courses: Hands-on Introduction to Python Programming: 11-13.08.2003 (3 days) Introduction to the CERN Engineering Data Management System (EDMS): 26.08.2003 (1 day) The CERN Engineering Data Management System (EDMS) for Engineers: 27.08.2003 (1 day) CLEAN-2002 : Travailler en salle blanche : 4.09.2003 (une demi-journée) AutoCAD 2002 - Level 1: 4, 5, 15, 16.09.2003 (2 x 2 days) AutoCAD Mechanical 6 PowerPack : 17, 18, 25, 26.09.2003 et 2, 3.10.2003 (3 x 2 journées, français) AutoCAD 2002 - niveau 1 : 23, 24, 30.09.2003 et 1.10.2003 (2 x 2 journées) Introduction to the CERN Engineering Data Management System (EDMS): 23.09.2003 (1 day) The CERN Engineering Data Management System (EDMS) for Local Administrators: 24-25.09.2003 (2 days) AutoCAD 2002 - niveau 2 : 8 et 10.10.2003 (2 journées) CLEAN-2002: Working in a Cleanroom: 23.10.2003 (half day, p.m.) ** The number of places available may vary. Please check our Web site to find out the current availabili...

  19. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: November 2002   Java Programming Language level 1 :  28 & 29.11.02  (2 days) December 2002   LabVIEW - DSC (English) :  2 - 3.12.02  (2 days) FileMaker (Français) :  2 - 5.12.02  (4 jours) PCAD Schémas - Débutants :  5 & 6.12.02  (2 jours) PCAD PCB - Débutants :  9 - 11.12.02  (3 jours) FrontPage 2000 - level 1:  9 & 10.12.02  (2 days) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. Technical Training M...

  20. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: November 2002   Hands-on Object-Oriented Design and Programming with C++:  19 - 21.11.02  (3 days)  December 2002   LabVIEW - DSC (English) :  2 - 3.12.02  (2 days) AutoCAD 2002 - niveau 2 :  2 & 3.12.02  (2 jours) FileMaker (Français) :  2 - 5.12.02  (4 jours) PCAD Schémas - Débutants :  5 & 6.12.02  (2 jours) PCAD PCB - Débutants :  9 - 11.12.02  (3 jours) FrontPage 2000 - level 1:  9 & 10.12.02  (2 days) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisiona...

  1. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74460

    2001-01-01

    Places are available in the following courses: LabView Base 1 : 27-29.3.01 (3 jours) Contract Follow-up : 9.4.01 (3 heures) Introduction à PowerPoint : 24.4.01 (1 journée) Publier sur le Web : 25-27.4.01 (3 demi-journées) Programmation TSX Premium 2 : 15-16.5.01 (5 jours) LabView Base 2 : 27-29.3.01 (2 jours) Hands-on Object-oriented Analysis, Design & Programming with C++ :  23-27.4.01 (5 days) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : http://www.cern.ch/Training/ or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.

  2. [Not Available].

    Science.gov (United States)

    Meyer, J J; Paumard, J L; Milin, D; Levoir, P; Fontaine, J C

    1988-11-01

    A low-cost digital acquisition unit for a CARY-210 spectrophotometer has been designed and constructed. The data-flow is controlled by a 6809 microprocessor driving four parallel interface adapters. Two RS232-C serial links are provided for communication with a terminal and a mass storage unit. The acquired data are processed by a personal computer. Included are several software modules, based on powerful signal-processing algorithms, which are highly useful in kinetic studies.

  3. 75 FR 17368 - Notice of Availability of an Evaluation of the Highly Pathogenic Avian Influenza Status of Czech...

    Science.gov (United States)

    2010-04-06

    ... the Czech Republic and Sweden with respect to HPAI H5N1. We are making this evaluation available to... Board of Agriculture reported their first case of HPAI H5N1 in domestic poultry to the World Organization of Animal Health (OIE). The outbreak was confirmed in mallard ducks on a game bird breeding farm...

  4. Drought response of five conifer species under contrasting water availability suggests high vulnerability of Norway spruce and European larch

    NARCIS (Netherlands)

    Lévesque, M.; Saurer, M.; Siegwolf, R.; Eilmann, B.; Brang, P.; Bugmann, H.; Rigling, A.

    2013-01-01

    The ability of tree species to cope with anticipated decrease in water availability is still poorly understood. We evaluated the potential of Norway spruce, Scots pine, European larch, black pine, and Douglas-fir to withstand drought in a drier future climate by analyzing their past growth and

  5. [Not Available].

    Science.gov (United States)

    Blanchard, Elodie; de Lara, Manuel Tunon

    2013-01-01

    Pholcodine is an opioid that has been widely used worldwide since 1950 for the treatment of non-productive cough in children and adults. The results of early preclinical studies but also those of recent clinical trials have shown the antitussive efficacy of pholcodine to be superior to that of codeine, of longer duration, and with an equivalent or safer toxicity profile. Also, there is no risk of addiction. Concern had been raised over a possible cross-sensitisation with neuromuscular blocking agents. While a recent assessment of the available data by the European Medicines Agency (EMA) has confirmed the favourable risk-benefit ratio of pholcodine, further studies are needed to clear this point.

  6. [Not Available].

    Science.gov (United States)

    Murray, Clinton K; Bennett, Jason W

    2009-01-01

    Malaria's global impact is expansive and includes the extremes of the healthcare system ranging from international travelers returning to nonendemic regions with tertiary referral medical care to residents in hyperendemic regions without access to medical care. Implementation of prompt and accurate diagnosis is needed to curb the expanding global impact of malaria associated with ever-increasing antimalarial drug resistance. Traditionally, malaria is diagnosed using clinical criteria and/or light microscopy even though both strategies are clearly inadequate in many healthcare settings. Hand held immunochromatographic rapid diagnostic tests (RDTs) have been recognized as an ideal alternative method for diagnosing malaria. Numerous malaria RDTs have been developed and are widely available; however, an assortment of issues related to these products have become apparent. This review provides a summary of RDT including effectiveness and strategies to select the ideal RDT in varying healthcare settings.

  7. High energy SEU test results for the commercially available MIPS R3000 microprocessor and R3010 floating point unit

    Energy Technology Data Exchange (ETDEWEB)

    Shaeffer, D.L.; Kimbrough, J.R.; Denton, S.M.; Kaschimitter, J.L.; Wilburn, J.W.; Davis, R.W.; Colella, N.J. (Lawrence Livermore National Lab., CA (United States)); Holtkamp, D.B. (Los Alamos National Lab., NM (United States))

    1991-08-15

    Single event upset (SEU) cross sections and total dose hardness of commercially available MIPS R3000 microprocessors (CPU) and R3010 floating point units (FPU) were obtained by exposing these parts to 256 MeV protons from the linear accelerator (LINAC) at the Los Alamos Meson Physics Facility (LAMPF). Parts from several manufacturers were tested. The CPUs and FPUs were tested dynamically during radiation exposure with specially designed assembly language codes which exercised a subset of the available instructions in order to simulate the actual operation of each part. Cross sections derived from the SEU data were used to calculate expected upset rate for a 500-km orbit during quiet solar conditions, the King 1972 solar flare, and the August 4, 1972, event modeled by Adams et al. 16 refs., 16 figs., 3 tabs.

  8. High energy proton SEU test results for the commercially available MIPS R3000 microprocessor and R3010 floating point unit

    Energy Technology Data Exchange (ETDEWEB)

    Shaeffer, D.L.; Kimbrough, J.R.; Denton, S.M.; Kaschmiter, J.L.; Wilburn, J.W.; Davis, R.W.; Colella, N.J. (Lawrence Livermore National Lab., CA (United States)); Holtkamp, D.B. (Los Alamos National Lab., NM (United States))

    1991-12-01

    This paper reports on proton single event upset (SEU) cross sections and proton total dose hardness of commercially available MIPS R3000 microprocessors (CPU) and R3010 floating point units (FPU) that were obtained by exposing these parts to 256 MeV protons from the linear accelerator (LINAC) at the Los Alamos Meson Physics Facility (LAMPF). Parts from several manufacturers were tested. The CPUs and FPUs were tested dynamically during radiation exposure with specially designed assembly language codes which exercised a subset of the available instructions. Cross sections derived from the SEU data were used to calculate expected upset rates for a 500-km, 60-degree inclination, orbit during quiet solar conditions and during the August 4, 1972, King solar flare event.

  9. Optimising power plant operation - high availability at low maintenance costs; Optimierung des Kraftwerksbetriebs - hohe Verfuegbarkeit trotz geringer Instandhaltungskosten

    Energy Technology Data Exchange (ETDEWEB)

    Kienreich, A.; Maagh, P.; Gilow, C.; Suerig, C.; Vahlenkamp, T. [McKinsey and Co., Inc., Duesseldorf (Germany)

    2008-01-15

    Most power plant operators responded to the liberalisation of the European energy markets by lowering their costs. The measures they took to this end such as lengthening maintenance intervals, cutting down on operating staff and progressively outsourcing maintenance services have indeed had an impact, albeit not as intended. In the meantime some power plants are showing first signs of impaired availability and reliability, both of which criteria had begun to play a more prominent role again in recent years. Today's challenge on power supply companies therefore is to optimise the costs and availability of their plants simultaneously. The ''McKinsey Power Gauge'', a Europe-wide benchmarking system provides assistance in identifying successful operating and maintenance strategies.

  10. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: LabVIEW base 1 : 22 - 24.4.02 (3 jours) CLEAN 2002 : working in a cleanroom:  24.4.02  (half-day, pm) LabVIEW DSC (F) 25 & 26.4.02 (2 jours) AutoCAD : Mise à jour AutoCAD r-14 vers 2002 : 25 & 26.4.02 (2 jours) Cotations selon les normes GPS de l'ISO : 29 - 30.4.02 (2 jours) Introduction to the CERN Engineering Data Management System:  7.5.02  (1 day) LabVIEW Basics 2: 13 & 14.5.02 (2 days) AutoCAD Mechanical 6 PowerPack (F) : 13-14, 17, 21, 27-28.5.02 (6 jours) WorldFIP - Généralités : 14.5.2002 (1/2 journée) WorldFIP - Développer avec MicroFIP HANDLER : 14.5 - après-midi, 15.5.02 - matin (1 jour) WorldFIP - FullFIP FDM : FIP Device Manager (F) : 15.5 - après-midi, 16.5.02 - matin (1 jour) LabVIEW DAQ (F) : 15 & 16.5.02 (2 jours) EXCEL 2000 - niveau 2 : 22 & 23.5.02 (2 jours)...

  11. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: The CERN Engineering Data Management System for Advanced users : 16.4.02  (1 day) Migration from AutoCAD 14 towards AutoCAD Mechanical6 PowerPack:  17 - 19.4 and 2 &3.5.02  (5 days) AutoCAD - niveau 1 : 22, 23, 29, 30.4 et 6, 7.5.02 (6 jours) LabVIEW base 1 : 22 - 24.4.02 (3 jours) CLEAN 2002 : working in a cleanroom:  24.4.02  (half-day, pm) LabVIEW DSC (F) 25 & 26.4.02 (2 jours) AutoCAD : Mise à jour AutoCAD r-14 vers 2002 : 25 & 26.4.02 (2 jours) Cotations selon les normes GPS de l'ISO : 29 - 30.4.02 (2 jours) Introduction to the CERN Engineering Data Management System:  7.5.02  (1 day) LabVIEW Basics 2: 13 & 14.5.02 (2 days) AutoCAD Mechanical 6 PowerPack (F) : 13-14, 17, 21, 27-28.5.02 (6 jours) WorldFIP - Généralités : 14.5.2002 (1/2 journée) WorldFIP - Développer avec Micr...

  12. Places available **

    CERN Multimedia

    2003-01-01

    Des places sont disponibles dans les cours suivants : Places are available in the following courses : Introduction à Windows 2000 au CERN : 25.2.03 (1/2 journée) LabView base 2/LabView Basics 2 : 10 & 11.3.03 (2 jours/2 days) langue à définir/Language to be decided C++ for Particle Physicists : 10 - 14.3.03 (6 X 3-hour lectures) Introduction to PVSS : 10.3.03 (half day, afternoon) Basic PVSS : 11 - 13.3.03 (3 days) LabView avancé /LabView Advanced : 12 - 14.3.03 (3 jours/3days) Langue à définir/Language to be decided AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 17, 18, 24 & 25.3.03 (6 jours) PVSS - JCOP Framework Tutorial : 14.3.03 (1 day) CLEAN-2002 : Working in a cleanroom : 2.4.03 (half-day, afternoon, free course, registration required) LabView base 1/LabView Basics 1 : 9 - 11.4.03 (3 jours/3 days) Langue à définir/Language to be decided DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) AutoCAD 2002 - niveau 2 : 5 & 6.5.03 (...

  13. Places available **

    CERN Multimedia

    2003-01-01

    Des places sont disponibles dans les cours suivants : Places are available in the following courses : WorldFIP 2003 pour utilisateurs : 11-14.2.03 (4 jours) DISP-2003 ? Spring I Term : Introduction to Digital Signal Processing : 20, 27.2, 6, 13, 20, 27.3, 3.4.03 (7 X 2-hour lectures) AXEL-2003 - Introduction to Accelerators : 24-28.2.03 (10 X 1-hour lectures) AutoCAD 2002 - niveau 1 : 24, 25.2 & 3, 4.3.03 (4 jours) Introduction à Windows 2000 au CERN : 25.2.03 (1/2 journée) LabView base 2/LabView Basics 2 : 10 & 11.3.03 (2 jours/2 days) langue à définir/Language to be decided C++ for Particle Physicists : 10 ? 14.3.03 (6 X 3-hour lectures) Introduction to PVSS : 10.3.03 (half day, afternoon) Basic PVSS : 11 - 13.3.03 (3 days) LabView avancé /LabView Advanced : 12 - 14.3.03 (3 jours/3days) Langue à définir/language to be decided AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 17, 18, 24 & 25.3.03 (6 jours) PVSS - JCOP Framework Tutorial : 14.3.03 (1 day) MAGNE-03 - Magnetism for Technical Ele...

  14. Places available **

    CERN Multimedia

    2003-01-01

    Des places sont disponibles dans les cours suivants : Places are available in the following courses : DISP-2003 - Spring I Term : Introduction to Digital Signal Processing : 20, 27.2, 6, 13, 20, 27.3, 3.4.03 (7 X 2-hour lectures) AXEL-2003 - Introduction to Accelerators : 24 - 28.2.03 (10 X 1-hour lectures) AutoCAD 2002 - niveau 1 : 24, 25.2 & 3, 4.3.03 (4 jours) Introduction à Windows 2000 au CERN : 25.2.03 (1/2 journée) LabView base 2/LabView Basics 2 : 10 & 11.3.03 (2 jours/2 days) langue à définir/Language to be decided C++ for Particle Physicists : 10 - 14.3.03 (6 X 3-hour lectures) Introduction to PVSS : 10.3.03 (half day, afternoon) Basic PVSS : 11 - 13.3.03 (3 days) LabView avancé /LabView Advanced : 12 - 14.3.03 (3 jours/3days) Langue à définir/language to be decided AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 17, 18, 24 & 25.3.03 (6 jours) PVSS - JCOP Framework Tutorial : 14.3.03 (1 day) CLEAN-2002 : Working in a cleanroom : 2.4.03 (half-day, afternoon, free course, regis...

  15. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Automates et réseaux de terrain : 13 & 14.11.01 (3 jours) Introduction à Windows 2000 au CERN : 12 - 14.11.01 (1/2 journée) Introduction to Windows 2000 at CERN :  14.11.01  (half-day) Introduction to PERL 5 :  15 - 16.11.01  (2 days) Sécurité dans les installations cryogéniques : 21 - 22.11.2001 (2 demi-journées) Introduction to C Programming :  21- 23.11.01 (3 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) Contract Follow-up (F) : 26.11.01 (1/2 journée) Object-Oriented Analysis and Design :  27 - 30.11.2001  (4 days) Introduction to the CERN Engineering Data Management System :  30.11.2001 (1 day) Electromagnetic Compatibility (EMC): Introduction (bilingual) :  3.12.01 (half-day) Introduction to the CERN Engineering Data Management System : 07.12.2001...

  16. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: October 2002   Introduction to the CERN Engineering Data Management System (free of charge):  29.10.2002  (1 day) The CERN EDMS for Advanced users (free of charge):  30.10.2002  (1 day) November 2002   LabView hands-on (bilingue/bilingual): 5.11.02 (matin/morning) LabView DAQ hands-on (bilingue/bilingual):  5.11.02  (après-midi afternoon) Introduction au PC et Windows 2000 au CERN :  6 & 7.11.02  (2 jours) Oracle 8i : Access the Database with Java:  7 & 8.11.02  (2 days) AutoCAD 2002 - niveau 2 :  7 & 8.11.02  (2 jours) Introduction to PVSS (free of charge):  11.11.2002 pm  (1/2 day) Basic PVSS:  12 - 14.11.02  (3 days) EXCEL 2000 - niveau 1 :  12 & 13.11.02  (2 jours) CLEAN-2002: Working in a Cleanroom (English, free ...

  17. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Contract Follow-up (F) : 30.10.01 (1/2 journée) The CERN Engineering Data Management System for Electronics Design :  30.10.01 (1 day) Nouveautés d'Excel 2000 : 5.11.01 (1/2 journée) UNIX pour non-programmeurs : 5 - 7.11.01 (3 jours) Introduction à Windows 2000 au CERN : 6.11.01 (1/2 journée) The Java programming language Level 1: 8 - 9.11.01 (2 days) LabView Base 1 : 12 - 14.11.01 (3 jours) LabVIEW DAQ (F) : 15 & 16.11.01 (2 jours) Automates et réseaux de terrain : 13 & 14.11.01 (2 jours) Introduction to PERL 5 :  15 - 16.11.01  (2 days) LabVIEW - DAQ : 15 - 16.11.01 (2 jours) Introduction to XML :  19 - 20.11.01 (2 days) Introduction to C Programming :  21- 23.11.01 (3 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) Object-Oriented Analysis and Design :  27 - 30.11.2001 (4 days) Hands...

  18. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: ELEC-2002 : Spring Term :  9, 11, 16, 18, 23, 25, 30.4.02 (7 * 2.5 hours) Object-Oriented Analysis & Design: 16 - 19.4.02  (4 days) The CERN Engineering Data Management System for Advanced users:  16.4.02  (1 day) Migration from AutoCAD 14 towards AutoCAD Mechanical6 PowerPack:  17 - 19.4 and 2 &3.5.02  (5 days) AutoCAD - niveau 1 : 22, 23, 29, 30.4 et 6, 7.5.02 (6 jours) LabVIEW base 1 : 22 - 24.4.02 (3 jours) CLEAN 2002 : working in a cleanroom:  24.4.02  (half-day, pm) LabVIEW DSC (F) 25 & 26.4.02 (2 jours) AutoCAD : Mise à jour AutoCAD r-14 vers 2002 : 25 & 26.4.02 (2 jours) LabVIEW Basics 2 : 13 & 14.5.02 (2 days) EXCEL 2000 - niveau 1 : 15 & 16.5.02 (2 jours) LabVIEW DAQ (F) : 15 & 16.5.02 (2 jours) EXCEL 2000 - niveau 2 : 22 & 23.5.02 (2 jours) LabVIEW Basics 1:  3 - 5.6.02&a...

  19. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: ELEC-2002 : Spring Term :  9, 11, 16, 18, 23, 25, 30.4.02 (7 * 2.5 hours) Object-Oriented Analysis & Design: 16 - 19.4.02  (4 days) The CERN Engineering Data Management System for Advanced users:  16.4.02  (1 day) Migration from AutoCAD 14 towards AutoCAD Mechanical6 PowerPack:  17 - 19.4 and 2 &3.5.02  (5 days) AutoCAD - niveau 1 : 22, 23, 29, 30.4 et 6, 7.5.02 (6 jours) LabVIEW base 1 : 22 - 24.4.02 (3 jours) CLEAN 2002 : working in a cleanroom:  24.4.02  (half-day, pm) LabVIEW DSC (F) 25 & 26.4.02 (2 jours) AutoCAD : Mise à jour AutoCAD r-14 vers 2002 : 25 & 26.4.02 (2 jours) Cotations selon les normes GPS de l'ISO : 29 - 30.4.02 (2 jours) Introduction to the CERN Engineering Data Management System:  7.5.02  (1 day) LabVIEW Basics 2 : 13 & 14.5.02 (2 days) AutoCAD Mechanical 6 PowerPack (F) : 13-...

  20. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Introduction to C Programming :  21- 23.11.01 (3 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) Contract Follow-up (F) : 26.11.01 (1/2 journée) Habilitation électrique : électriciens network : 27 - 29.11.2001 (3 jours) Object-Oriented Analysis and Design :  27 - 30.11.2001  (4 days) Introduction to the CERN Engineering Data Management System :  30.11.2001 (1 day) Electromagnetic Compatibility (EMC): Introduction (bilingual) :  3.12.01 (half-day) Introduction to the CERN Engineering Data Management System : 07.12.2001 (1 day) LabVIEW - Basics 1 :  10 - 12.12.01 (3 days) LabVIEW - Basics 2 :  13 - 14.12.01 (2 days) EXCEL 2000 - niveau 2 : 15 - 16.1.02 (2 jours) C++ Programming Level 2 - Traps and Pitfalls :  15 - 18.1.2002  (4 days) Nouveautés de WORD 2000 : 18.1.02 (1/2 journée) FileMaker P...

  1. Places available **

    CERN Document Server

    2003-01-01

    Des places sont disponibles dans les cours suivants : Places are available in the following course : Introduction to the CERN Engineering Data Management System : 28.1.03 (1 day) AutoCAD 2002 - niveau 1 : 24, 25.2 et 3, 4.3.03 (4 jours) AutoCAD 2002 - niveau 2 : 27 & 28.2.03 (2 jours) C++ for Particle Physicists : 10 - 14.3.03 (6 X 3 hour lectures) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 17, 18, 24 & 25.3.03 (6 jours) CLEAN-2002 : Working in a cleanroom : 25.3.03 (half-day, afternoon, free course, registration required) Formation Siemens SIMATIC /Siemens SIMATIC Training : Introduction à STEP7 /Introduction to STEP7 : 11 & 12.3.03 / 3 & 4.6.03 (2 jours/2 days) Programmation STEP7/STEP7 Programming : 31.3 - 4.4.03 / 16 - 20.6.03 (5 jours/5 days) Réseau Simatic Net /Simatic Net Network : 15 & 16.4.03 / 26 & 27.6.03 Ces cours seront donnés en français ou anglais en fonction des demandes / These courses will be given in French or English following the requests. * Etant do...

  2. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) Programmation de pilotes périphériques : 5 - 8.5.03 (4 jours) Oracle iDS Reports : Build Internet Reports : 5 - 9.5.03 (5 days) LabView DAQ (language to be defined) : 8 & 9.5.03 AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.0 (6 jours) FrontPage 2000 - niveau 1 : 20 & 21.5.03 (2 jours) AutoCAD 2002 - niveau 2 : 3 & 4.6.03 (2 jours) EXCEL 2000 - niveau 1 : 10 & 11.6.03 (2 jours) EXCEL 2000 - level 1 : 12 & 13.6.03 (2 days) PowerPoint 2000 (F) : 17 & 18.6.03 (2 jours) FrontPage 2000 - niveau 2 : 19 & 20.6.03 (2 jours) LabView DSC (langue à décider/language to be defined) : 19 & 20.6.03 EXCEL 2000 - niveau 2 : 24 & 25.6.03 (2 jours) Siemens SIMATIC Training : Introduction to STEP7 : 3 & 4.6.03 (2 days) STEP7 Programming : 16 - 20.6.03 (5 days) Simatic Net Network : 26 & 27.6.03 ...

  3. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) Oracle iDS Reports : Build Internet Reports : 5 - 9.5.03 (5 days) LabView DAQ (language to be defined) : 8 & 9.5.03 AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.03 (6 jours) AutoCAD 2002 - niveau 2 : 3 & 4.6.03 (2 jours) LabView DSC (language to be defined) : 19 & 20.6.03 Siemens SIMATIC Training : Introduction to STEP7 : 3 & 4.6.03 (2 days) STEP7 Programming : 16 - 20.6.03 (5 days) Simatic Net Network : 15 & 16.4.03 / 26 & 27.6.03 (sessions of 2 days) These courses will be given in French or English following the requests. Cours de sécurité : Etre TSO au CERN : Prochaines sessions : 24, 25 & 27.6.03 - 4, 5 & 7.11.03 (session de 3 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description ...

  4. [Not Available].

    Science.gov (United States)

    Calbiac, Pascale De; Lamoureux, Fabien; Pourrat, Xavier; Bretault, Lydia; Marchand, Sophie; Grassin, Jacqueline; Antier, Daniel

    2006-01-01

    Treatment of Bronchial Superinfections: Data Related to Stability of Antibiotics in Portable Pumps. Given many data about the stability of antibiotics in portable pump (elastomer) are lacking, this study was designed to make a point about available data and to evaluate the stability of antibiotics when exposed to temperature within 35°C (average temperature measured in real conditions of use). First, to collect information about the stability of antibiotics in portable pump and to confront them with the local antibiotics protocols dedicated to the treatment of bronchial superinfection in patients with cystic fibrosis; second, to evaluate the stability of piperacillin associated with tazobactam at 35°C. While measured concentrations in tazobactam did not show significant variation during the study, piperacillin measurements showed a major reduction of concentration (up to 33%), both time and concentration related to. Such information must be pointed out to prescribers and patients to ensure a cold accumulator is placed in the pump can'ying-bag and to limit the duration of infusion to 24h with a single pump. This experimental program will keep on going with the stability study of both ticarcillin and cefsulodin in portable pump. Copyright © 2006 Société Française de Pharmacologie et de Thérapeutique. Publié par Elsevier Masson SAS.

  5. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: Introduction au PC et à Windows 2000 au CERN : 29 - 30.1.02 (2 jours) LabView Base 1 : 4 - 6.2.02 (3 jours) LabView DAQ  (F) : 7 & 8.2.02 (2 jours) Hands-on Object-Oriented Design & Programming with Java :  11 - 13.02.02 (3 days) PVSS basics :  18 - 22.2.02 (5 days) Introduction à Windows 2000 : 18.2.02 (1 demi-journée) Introduction to the CERN Engineering Data Management System :  20.2.02 (1 day) The CERN Engineering Data Management System for Advanced users :  21.2.02  (1 day) C++ for Particle Physicists :  11 - 15.3.2002  (6 * 3 hour lectures) Cours sur la migration AutoCAD : AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé sur AutoCAD 2002 (5 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electr...

  6. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: C++ for Particle Physicists :  11 - 15.3.2002  (6 * 3 hour lectures) Programming the Web for Control Applications : 11, 12, 18, 19.3.2002  (4 * 2 hour lectures) Habilitation électrique : recyclage HT/BT (Français) : 13 - 14.3.2002 (2 * 2 heures) Introduction à la CAO CADENCE : 19 & 20.3.02 (2 jours) LabVIEW base 1 : 22 - 24.4.02 (3 jours) LabVIEW DSC (F) 25 & 26.4.02 (2 jours) LabVIEW Basics 2 : 13 & 14.5.02 (2 days) LabVIEW DAQ (F) : 15 & 16.5.02 (2 jours) Cours sur la migration AutoCAD :   AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé sur AutoCAD 2002 (5 jours) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at : Technical Training or fil...

  7. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: LabVIEW - Basics 1 :  10 - 12.12.01 (3 days) Introduction to XML :  12 & 13.12.01 (2 days) Introduction au PC et Windows 2000 : 12 & 14.12.01 (2 jours) LabVIEW - Basics 2 :  13 - 14.12.01 (2 days) Habilitation électrique : superviseurs : 17.12.2001 (1/2 journée) MS-Project 2000 : 10 & 11.01.02 (2 jours) EXCEL 2000 - niveau 2 : 15 - 16.1.02 (2 jours) Sécurité dans les installations cryogéniques: 15-17.1.2002 (2 demi-journées) C++ Programming Level 2 - Traps and Pitfalls :  15 - 18.1.2002  (4 days) ELEC-2002 Winter Term: Readout and system electronics for Physics  15.1.2002 - 7.2.2002 (8 half- days) Nouveautés de WORD 2000 : 18.1.02 (1/2 journée) LabView hands-on : 21.01.02 (1/2 journée) LabView DAQ hands-on : 21.01.02 (1/2 journée) FileMaker Pro : 22 -...

  8. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2002-01-01

    Places are available in the following courses: LabView hands-on : 21.01.02 (1/2 journée) LabView DAQ hands-on : 21.01.02 (1/2 journée) FileMaker Pro : 22 - 25.1.02 (4 jours) MS-Project 2000 : 22, 24 & 25.01.02 (3 jours) Introduction au PC et à Windows 2000 au CERN : 29 - 30.1.02 (2 jours) LabView Base 1 : 4 - 6.2.02 (3 jours) LabView DAQ  (E) :  7 & 8.02.02 (2 days) Hands-on Object-Oriented Design & Programming with Java :  11 - 13.02.02 (3 days) PVSS basics :  11 - 15.2.02 (5 days) Introduction à Windows 2000 : 18.2.02 (1 demi-journée) Introduction to the CERN Engineering Data Management System :  20.2.02 (1 day) The CERN Engineering Data Management System for Advanced users :  21.2.02  (1 day) C++ for Particle Physicists :  11 - 15.3.2002  (6 * 3 hour lectures) Cours sur la migration AutoCAD : AutoCAD : Mise à...

  9. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel.74924

    2001-01-01

    Places are available in the following courses: Habilitation électrique : superviseurs : 5.12.01 (1/2 journée) LabVIEW - Basics 1 :  10 - 12.12.01 (3 days) Introduction au PC et Windows 2000 : 12 & 14.12.01 (2 jours) LabVIEW - Basics 2 :  13 - 14.12.01 (2 days) Habilitation électrique : superviseurs : 17.12.2001 (1/2 journée) EXCEL 2000 - niveau 2 : 15 - 16.1.02 (2 jours) Sécurité dans les installations cryogéniques: 15-17.1.2002 (2 demi-journées) C++ Programming Level 2 - Traps and Pitfalls :  15 - 18.1.2002  (4 days) ELEC-2002 Winter Term: Readout and system electronics for Physics  15.1.2002 - 7.2.2002 (8 half- days) Nouveautés de WORD 2000 : 18.1.02 (1/2 journée) LabView hands-on : 21.01.02 (1/2 journée) LabView DAQ hands-on : 21.01.02 (1/2 journée) FileMaker Pro : 22 - 25.1.02 (4 jours) Frontpage...

  10. PLACES AVAILABLE

    CERN Multimedia

    Enseignement Technique; Tel. 74924

    2001-01-01

    Places are available in the following courses: MS-Project 2000 : 10 & 11.01.02 (2 jours) EXCEL 2000 - niveau 2 : 15 - 16.1.02 (2 jours) Sécurité dans les installations cryogéniques: 15-17.1.2002 (2 demi-journées) C++ Programming Level 2 - Traps and Pitfalls :  15 - 18.1.2002  (4 days) ELEC-2002 Winter Term: Readout and system electronics for Physics  15.1.2002 - 7.2.2002 (8 half- days) Nouveautés de WORD 2000 : 18.1.02 (1/2 journée) LabView hands-on : 21.01.02 (1/2 journée) LabView DAQ hands-on : 21.01.02 (1/2 journée) FileMaker Pro : 22 - 25.1.02 (4 jours) MS-Project 2000 : 24 & 25.01.02 (2 jours) Introduction au PC et à Windows 2000 au CERN : 29 - 30.1.02 (2 jours) LabView Base 1 : 4 - 6.2.02 (3 jours) LabView DAQ  (E) :  7 & 8.02.02 (2 days) Hands-on Object-Oriented Design & Programming with Java :&nbs...

  11. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: PVSS Basics :  8 - 12.4.02  (5 days) AutoCAD : Mise à jour AutoCAD r-14 vers 2002 : 25 & 26.4.02 (2 jours) ELEC-2002 : Spring Term :  9, 11, 16, 18, 23, 25, 30.4.02 (7 * 2.5 hours) Object-Oriented Analysis & Design: 16 - 19.4.02  (4 days) Migration from AutoCAD 14 towards AutoCAD Mechanical6 PowerPack:  17 - 19.4 and 2 &3.5.02  (5 days) LabVIEW base 1 : 22 - 24.4.02 (3 jours) LabVIEW DSC (F) 25 & 26.4.02 (2 jours) LabVIEW Basics 2 : 13 & 14.5.02 (2 days) EXCEL 2000 - niveau 2 : 22 & 23.5.02 (2 jours) LabVIEW DAQ (F) : 15 & 16.5.02 (2 jours) LabVIEW Basics 1:  3 - 5.6.02  (3 days) LabVIEW DAQ (E):  6 & 7.6.02  (2 days) If you wish to participate in one of these courses, please discuss with your supervisor and apply electronically directly from the course description pages that...

  12. PLACES AVAILABLE

    CERN Multimedia

    Monique DUVAL

    2002-01-01

    Places are available in the following courses: LabView Basics 1 :  4 - 6.3.02  (3 days) CLEAN-2002 : Working in a Clean Room :  7.3.2002  (half day) LabView Base 2 : 11 & 12.3.02 (2 jours) C++ for Particle Physicists :  11 - 15.3.2002  (6 * 3 hour lectures) Programming the Web for Control Applications : 11, 12, 18, 19.3.2002  (4 * 2 hour lectures) Habilitation électrique : recyclage HT/BT (Français) : 13 - 14.3.2002 (2 * 2 heures) LabView Advanced :  13 - 15.3.02 (3 days) Introduction to the CERN Engineering Data Management System (EDMS) :  20.3.2002  (1 day) The CERN (EDMS) for Advanced Users :  21.3.2002  (1 day) LabVIEW DSC : 25 - 26.4.2002 (2 jours) LabVIEW DAQ : 15 - 16.5.2002 (2 jours) Cours sur la migration AutoCAD :   AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé ...

  13. PLACES AVAILABLE

    CERN Multimedia

    Technical Traininf; Tel. 74924

    2001-01-01

    Places are available in the following courses: Electromagnetic Compatibility (EMC): Introduction (bilingual) :  3.12.01 (half-day) Habilitation électrique : superviseurs : 5.12.01 (1/2 journée) Introduction to the CERN Engineering Data Management System : 07.12.2001 (1 day) LabVIEW - Basics 1 :  10 - 12.12.01 (3 days) Introduction au PC et Windows 2000 : 12 & 14.12.01 (2 jours) LabVIEW - Basics 2 :  13 - 14.12.01 (2 days) Habilitation électrique : superviseurs : 17.12.2001 (1/2 journée) EXCEL 2000 - niveau 2 : 15 - 16.1.02 (2 jours) C++ Programming Level 2 - Traps and Pitfalls :  15 - 18.1.2002  (4 days) Nouveautés de WORD 2000 : 18.1.02 (1/2 journée) LabView hands-on : 21.01.02 (1/2 journée) LabView DAQ hands-on : 21.01.02 (1/2 journée) FileMaker Pro : 22 - 25.1.02 (4 jours) Introduction au PC et à Windows 2000 au CERN : 29 - 30.1....

  14. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : FrontPage 2000 - niveau 1 : 20 & 21.5.03 (2 jours) PIPES-2003 : Pratique du sertissage de tubes métalliques et multicouches : 21.5.03 (1 jour) Introduction à la CAO Cadence : de la saisie de schéma Concept-HDL au PCB : 20 & 22.5.03 (2 jours) AutoCAD 2002 - niveau 2 : 3 & 4.6.03 (2 jours) AutoCAD Mechanical 6 PowerPack (F) : 5, 6, 12, 13, 26, 27.6.03 (6 jours) EXCEL 2000 - niveau 1 : 10 & 11.6.03 (2 jours) Conception de PCB rapides dans le flot Cadence : 11.6.03 (matin) EXCEL 2000 - level 1 : 12 & 13.6.03 (2 days) PowerPoint 2000 (F) : 17 & 18.6.03 (2 jours) Réalisation de PCB rapides dans le flot Cadence : 17.6.03 (matin) FrontPage 2000 - niveau 2 : 19 & 20.6.03 (2 jours) LabView DSC (langue à décider/language to be defined) : 19 & 20.6.03 EXCEL 2000 - niveau 2 : 24 & 25.6.03 (2 jours) Siemens SIMATIC Training: Introduction to STEP7 : 3 & 4.6.03 (2 days) STEP7 Programming : 16 - 20.6.03 (5 days) Simatic...

  15. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : FrontPage 2000 - niveau 1: 20 & 21.5.03 (2 jours) PIPES-2003 : Pratique du sertissage de tubes métalliques et multicouches: 21.5.03 (1 jour) Introduction à la CAO Cadence: de la saisie de schéma Concept-HDL au PCB : 20 & 22.5.03 (2 jours) AutoCAD Mechanical 6 PowerPack (E): 5, 6, 12, 13, 26, 27.6.03 (6 days) EXCEL 2000 - niveau 1: 10 & 11.6.03 (2 jours) Conception de PCB rapides dans le flot Cadence: 11.6.03 (matin) EXCEL 2000 - level 1: 12 & 13.6.03 (2 days) Introduction to PVSS: 16.6.03 (half-day, pm) Basic PVSS: 17 - 19.6.03 (3 days) Réalisation de PCB rapides dans le flot Cadence: 17.6.03 (matin) LabView DSC (language to be defined): 19 & 20.6.03 PVSS - JCOP Framework Tutorial: 20.6.03 (1 day) EXCEL 2000 - niveau 2: 24 & 25.6.03 (2 jours) Siemens SIMATIC Training: Introduction to STEP7: 3 & 4.6.03 (2 days) STEP7 Programming: 16 - 20.6.03 (5 days) Simatic Net Network: 26 & 27.6.03 (2 days) These courses will be given...

  16. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: EXCEL 2000 - niveau 1 : 3 et 4.10.01 (2 jours) Automates et réseaux de terrain : 3 - 4.10.2001 (2 jours) Introduction à Outlook : 5.10.01 (1 journée) C++ for Particle Physicists : 8 - 12.10.01 (6 lectures) Cadence Board Design tools : Upgrading to release 14 : 3 1-day sessions on 9, 10 & 11.10.01 MS-Project 2000 - niveau 1 : 15 - 18.10.01 (4 demi-journées) LabView Base 2 : 18 & 19.10.01 (2 jours) WORD 2000 : importer et manipuler des images : 19.10.01 (1 journée) The CERN Engineering Data Management System for Electronics Design :  30.10.01 (1 day) UNIX pour non-programmeurs : 5 - 7.11.01 (3 jours) The Java programming language Level 1: 8 - 9.11.01 (2 days) Introduction to PERL 5 :  15 - 16.11.01  (2 days) Introduction to XML :  19 - 20.11.01 (2 days) Programming TSX Premium 1 :  19 - 23.11.01  (5 days) Introd...

  17. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Contract Follow-up (F) : 30.10.01 (1/2 journée) The CERN Engineering Data Management System for Electronics Design :  30.10.01 (1 day) UNIX pour non-programmeurs : 5 - 7.11.01 (3 jours) Nouveautés d'EXCEL : 5.11.01 (1/2 journée) Introduction a Windows 2000 au CERN : 6.11.01 (1/2 journée) The Java programming language Level 1: 8 - 9.11.01 (2 days) LabView Base 1 : 12 - 14.11.01 (3 jours) Automates et réseaux de terrain : 13 & 14.11.01 (2 jours) Introduction to PERL 5 :  15 - 16.11.01  (2 days) Introduction to XML :  19 - 20.11.01 (2 days) Programming TSX Premium 1 :  19 - 23.11.01  (5 days) Introduction to C Programming :  21- 23.11.01 (3 days) The Java programming language Level 2:  26 - 28.11.01 (3 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) Autocad Migration support courses: a detail...

  18. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: MS-Project 2000 - niveau 1 : 15 - 18.10.01 (4 demi-journées) LabView Base 2 : 18 & 19.10.01 (2 jours) WORD 2000 : importer et manipuler des images : 19.10.01 (1 journée) Contract Follow-up (F) : 30.10.01 (1/2 journée) The CERN Engineering Data Management System for Electronics Design :  30.10.01 (1 day) UNIX pour non-programmeurs : 5 - 7.11.01 (3 jours) The Java programming language Level 1: 8 - 9.11.01 (2 days) LabView Base 1 : 12 - 14.11.01 (3 jours) Automates et réseaux de terrain : 13 & 14.11.01 (2 jours) Introduction to PERL 5 :  15 - 16.11.01  (2 days) Introduction to XML :  19 - 20.11.01 (2 days) Programming TSX Premium 1 :  19 - 23.11.01  (5 days) Introduction to C Programming :  21- 23.11.01 (3 days) The Java programming language Level 2:  26 - 28.11.01 (3 days) Programmation TSX Premium 2 : 26 ...

  19. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Cadence Board Design tools : Upgrading to release 14 :  3 1-day sessions on 9, 10 & 11.10.01 MS-Project 2000 - niveau 1 : 15 - 18.10.01 (4 demi-journées) LabView Base 2 : 18 & 19.10.01 (2 jours) WORD 2000 : importer et manipuler des images : 19.10.01 (1 journée) Contract Follow-up (F) :  30.10.01 (1/2 journée) The CERN Engineering Data Management System for Electronics Design :  30.10.01 (1 day) UNIX pour non-programmeurs : 5 - 7.11.01 (3 jours) The Java programming language Level 1: 8 - 9.11.01 (2 days) LabView Base 1 : 12 - 14.11.01 (3 jours) Introduction to PERL 5 :  15 - 16.11.01  (2 days) Introduction to XML :  19 - 20.11.01 (2 days) Programming TSX Premium 1 :  19 - 23.11.01  (5 days) Introduction to C Programming :  21- 23.11.01 (3 days) The Java programming language Level 2:  26 - 28.11.01 (...

  20. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Introduction à Windows 2000 au CERN : 2 sessions de _ journée les 24 et 25.9.01 PROFIBUS : 25 - 26.9.01 (2 jours) PROFIBUS : 27 - 28.9.01 (2 days) EXCEL 2000 - niveau 1 : 3 et 4.10.01 (2 jours) Automates et réseaux de terrain : 3 - 4.10.2001 (2 jours) Introduction à Outlook : 5.10.01 (1 journée) Frontpage 2000 - niveau 1 : 8 et 9.10.01 (2 jours) C++ for Particle Physicists : 8 - 12.10.01 (6 lectures) MS-Project 2000 - niveau 1 : 15 - 18.10.01 (4 demi-journées) Programmation TSX Premium 1 : 15 - 19.10.01 (5 jours) WORD 2000 : importer et manipuler des images : 19.10.01 (1 journée) Programmation TSX Premium 1 : 22 - 26.10.01 (5 jours) UNIX pour non-programmeurs : 5 - 7.11.01 (3 jours) The Java programming language Level 1: 8 - 9.11.01 (2 days) Introduction to PERL 5 :  15 - 16.11.01  (2 days) Introduction to XML :  19 - 20.11.01 (2...

  1. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: LabView DAQ  (F) : 7 & 8.2.02 (2 jours) Hands-on Object-Oriented Design & Programming with Java :  11 - 13.02.02 (3 days) PVSS basics :  18 - 22.2.02 (5 days) Introduction à Windows 2000 : 18.2.02 (1 demi-journée) Introduction to the CERN Engineering Data Management System :  20.2.02 (1 day) Introduction à la CAO CADENCE : 20 & 21.2.02 (2 jours) The CERN Engineering Data Management System for Advanced users :  21.2.02  (1 day) LabView Basics 1 :  4 - 6.3.02  (3 days) Introduction au VHDL et utilisation du simulateur de CADENCE : 6 & 7.3.02 (2 jours) LabView Base 2 : 11 & 12.3.02 (2 jours) C++ for Particle Physicists :  11 - 15.3.2002  (6 * 3 hour lectures) LabView Advanced :  13 - 15.3.02 (3 days) Cours sur la migration AutoCAD :   AutoCAD : Mise à...

  2. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses: The CERN EDMS for Local Administrators (free of charge) : 24 & 25.9.03 (2 days) HeREF-2003 : Techniques de la réfrigération Hélium (cours en français avec support en anglais) : 6 - 10.10.2003 (7 demi-journées) The Java Programming Language Level 1 : 6 - 7.10.2003 (2 days) Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 8 - 10.10.2003 (3 days) FileMaker - niveau 1 : 9 & 10.10.03 (2 jours) EXCEL 2000 - niveau 1 : 20 & 22.10.03 (2 jours) AutoCAD 2002 - niveau 1 : 20, 21, 27, 28.10.03 (4 jours) CLEAN-2002 : Working in a Cleanroom (free of charge) : 23.10.03 (half day) AutoCAD Mechanical 6 PowerPack (E) : 23, 24, 30, 31.10 & 12, 13.11.03 (6 days) AutoCAD 2002 - niveau 2 : 10 & 11.11.03 (2 jours) ACCESS 2000 - niveau 1 : 13 & 14.11.03 (2 jours) FrontPage 2000 - niveau 1 : 20...

  3. Places available **

    CERN Multimedia

    2003-01-01

    Places are available in the following courses: PIPES-2003 - Pratique du Sertissage de tubes métalliques et multicouches : 26.8.03 (stage pratique) The CERN Engineering Data Management System (EDMS) for Engineers : 27.8.03 (1 day, free of charge) CLEAN-2002 : Travailler en salle blanche : 4.9.03 (une demi-journée, séminaire gratuit) The CERN Engineering Data Management System (EDMS) for Local Administrators : 24 & 25.9.03 (2 days, free of charge) Siemens SIMATIC Training : Programmation STEP7 - niveau 1 : 29 - 2.10.03 (4 jours) - ouverture des inscriptions fin août Programmation STEP7 - niveau 2 : 13 - 17.10.03 (5 jours) - ouverture des inscriptions fin août Réseau Simatic Net : 22 & 23.10.03 (2 jours) - ouverture des inscriptions fin août CLEAN-2002 : Working in a Cleanroom : 23.20.03 (half day, free of charge) These courses will be given in French or Englis...

  4. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : The CERN EDMS for Local Administrators : 24 & 25.9.03 (2 days, free of charge) HeREF-2003 : Techniques de la réfrigération Hélium (cours en français avec support en anglais) : 6 - 10.10.2003 (7 demi-journées) The Java Programming Language Level 1 : 6 - 7.10.2003 (2 days) Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 8 - 10.10.2003 (3 days) FileMaker - niveau 1 : 9 & 10.10.03 (2 jours) EXCEL 2000 - niveau 1 : 20 & 22.10.03 (2 jours) AutoCAD 2002 - niveau 1 : 20, 21, 27, 28.10.03 (4 jours) CLEAN-2002 : Working in a Cleanroom : 23.10.03 (half day, free of charge) AutoCAD 2002 - Level 1 : 3, 4, 12, 13.11.03 (4 days) AutoCAD 2002 - niveau 2 : 10 & 11.11.03 (2 jours) ACCESS 2000 - niveau 1 : 13 & 14.11.03 (2 jours) AutoCAD Mechanical 6 PowerPack (E) : 17, 18, 24, 25.11 & 1, 2.12.03 (6...

  5. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : EXCEL 2000 - niveau 1 : 10 & 11.6.03 (2 jours) Conception de PCB rapides dans le flot Cadence : 11.6.03 (matin) EXCEL 2000 - level 1 : 12 & 13.6.03 (2 days) Introduction to PVSS : 16.6.03 (p.m.) Basic PVSS : 17 - 19.6.03 (3 days) Réalisation de PCB rapides dans le flot Cadence : 17.6.03 (matin) PVSS - JCOP Framework Tutorial : 20.6.03 (1 day) EXCEL 2000 - niveau 2 : 24 & 25.6.03 (2 jours) Siemens SIMATIC Training : Introduction to STEP7 : 3 & 4.6.03 (2 jours/2 days) STEP7 Programming : 16 - 20.6.03 (5 jours/5 days) Simatic Net Network : 26 & 27.6.03 (2 jours/2 days) These courses will be given in French or English following the requests. Programmation automate Schneider : Programmation automate Schneider TSX Premium - 1er niveau : 10 - 13.6.03 (4 jours) - audience : toute personne qui veux maitriser la msie en uvre et la programmation d'un automate TSX Premium - objectifs : maitriser la mise en uvre et la programmation d'un autom...

  6. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses: CLEAN-2002 : Travailler en salle blanche (séminaire gratuit) : 4.9.03 (une demi-journée) The CERN EDMS for Local Administrators (free of charge) : 24 & 25.9.03 (2 days) HeREF-2003 : Techniques de la réfrigération Hélium (cours en français avec support en anglais) : 6 - 10.10.2003 (7 demi-journées) The Java Programming Language Level 1 : 6 - 7.10.2003 (2 days) Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 8 - 10.10.2003 (3 days) FileMaker - niveau 1 : 9 & 10.10.03 (2 jours) EXCEL 2000 - niveau 1 : 20 & 22.10.03 (2 jours) AutoCAD 2002 - niveau 1 : 20, 21, 27, 28.10.03 (4 jours) CLEAN-2002 : Working in a Cleanroom (free of charge) : 23.10.03 (half day) AutoCAD Mechanical 6 PowerPack (E) : 23, 24, 30, 31.10 & 12, 13.11.03 (6 days) AutoCAD 2002 - niveau 2 : 10 & 11.11.03 (2 jours)...

  7. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: November 2002   Introduction to PVSS (free of charge): 11.11.02  (afternoon) EXCEL 2000 - niveau 1 :  12 & 13.11.02  (2 jours) CLEAN-2002: Working in a Cleanroom (English, free of charge):  13.11.2002  (afternoon) AutoCAD 2002 - niveau 1 :  14, 15, 21, 22.11.02  (4 jours) Hands-on Object-Oriented Design and Programming with C++:  19 - 21.11.02  (3 days)  EXCEL 2000 - niveau 2 :  25 & 26.11.02  (2 jours) FrontPage 2000 - niveau 1 :  27 & 28.11.02  (2 jours) December 2002   LabVIEW - DSC (English) :  2 - 3.12.02  (2 days) AutoCAD 2002 - niveau 2 :  2 & 3.12.02  (2 jours) FileMaker (Français) :  2 - 5.12.02  (4 jours) PCAD Schémas - Débutants :  5 & 6.12.02 ...

  8. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Introduction à Windows 2000 au CERN : 2 sessions de _ journée les 24 et 25.9.01 PROFIBUS : 25 - 26.9.01 (2 jours) PROFIBUS : 27 - 28.9.01 (2 days) PowerPoint 2000 : 1 et 2.10.01 (2 jours) EXCEL 2000 - niveau 1 : 3 et 4.10.01 (2 jours) Automates et réseaux de terrain : 3 - 4.10.2001 (2 jours) PCAD Schémas - débutants : 4 - 5.10.01 (2 jours) Introduction à Outlook : 5.10.01 (1 journée) Frontpage 2000 - niveau 1 : 8 et 9.10.01 (2 jours) PCAD PCB - débutants : 8 - 10.10.01 (3 jours) C++ for Particle Physicists : 8 - 12.10.01 (6 3-hour lectures) MS-Project 2000 - niveau 1 : 15 - 18.10.01 (4 demi-journées) LabView Basics 1 :  15 - 17.10.01  (3 days) Programmation TSX Premium 1 : 15 - 19.10.01 (5 jours) WORD 2000 : importer et manipuler des images : 19.10.01 (1 journée) Programmation TSX Premium 1 : 22 - 26.10.01...

  9. PLACES AVAILABLE

    CERN Multimedia

    Technical training; Tel. 74924

    2001-01-01

    Places are available in the following courses: PVSS Basics : 20 - 24.8.01 (5 days) PROFIBUS : 25 - 26.9.01 (2 jours) PROFIBUS : 27 - 28.9.01 (2 days) PCAD Schémas - débutants : 4 - 5.10.01 (2 jours) PCAD PCB - débutants : 8 - 10.10.01 (3 jours) Programming TSX Premium 1: 15 - 19.10.01 (5 days) Programmation TSX Premium 1 : 22 - 26.10.01 (5 jours) Programming TSX Premium 2: 19 - 23.11.01 (5 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) The following LabView courses will be given in either English or French according to demand LabVIEW - Base 1 / LabVIEW - Basics 1 : 10 - 12.9.01 (3 jours / 3 days) LabVIEW - DAQ / LabVIEW - DAQ : 13 - 14.9.01 (2 jours / 2 days) LabVIEW - Base 1 / LabVIEW - Basics 1 : 15 - 17.10.01 (3 jours / 3 days) LabVIEW - Base 2 / LabVIEW - Basics 2 : 18 - 19.10.01 (2 jours / 2 days) LabVIEW - Base 1 / LabVIEW - Basics 1 : 12 - 14.11.01 (3 jours / 3 days) LabVIEW - DAQ / LabVIEW - DAQ : 15 - 16.11.01 (2 jours / 2...

  10. PLACES AVAILABLE

    CERN Multimedia

    Technical training; Tel. 74924

    2001-01-01

    Places are available in the following courses: PROFIBUS : 25 - 26.9.01 (2 jours) PROFIBUS : 27 - 28.9.01 (2 days) Automates et réseaux de terrain : 3 - 4.10.2001 (2 jours) PCAD Schémas - débutants : 4 - 5.10.01 (2 jours) PCAD PCB - débutants : 8 - 10.10.01 (3 jours) Programmation TSX Premium 1 : 15 - 19.10.01 (5 jours) Programmation TSX Premium 1 : 22 - 26.10.01 (5 jours) Programming TSX Premium 2: 19 - 23.11.01 (5 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) Autocad Migration support courses: a detailed calendar will be published shortly for this series of sessions which will start on 15.10.2001. Registration is already open AutoCAD : Mise à jour AutoCAD r-14 vers 2002 (2 jours) AutoCAD Mechanical PowerPack 6 basé sur AutoCAD 2002 (5 jours) The following LabView courses will be given in either English or French according to demand LabVIEW - Base 1 / LabVIEW - Basics 1 : 10 - 12.9.01 (3 jours / 3 days)...

  11. PLACES AVAILABLES

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: PVSS Basics : 20 - 24.8.01 (5 days) PROFIBUS : 25 - 26.9.01 (2 jours) PROFIBUS : 27 - 28.9.01 (2 days) PCAD Schémas - débutants : 4 - 5.10.01 (2 jours) PCAD PCB - débutants : 8 - 10.10.01 (3 jours) Programming TSX Premium 1: 15 - 19.10.01 (5 days) Programmation TSX Premium 1 : 22 - 26.10.01 (5 jours) Programming TSX Premium 2: 19 - 23.11.01 (5 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) The following LabView courses will be given in either English or French according to demand LabVIEW - Base 1 / LabVIEW - Basics 1 : 10 - 12.9.01 (3 jours / 3 days) LabVIEW - DAQ / LabVIEW - DAQ : 13 - 14.9.01 (2 jours / 2 days) LabVIEW - Base 1 / LabVIEW - Basics 1 : 15 - 17.10.01 (3 jours / 3 days) LabVIEW - Base 2 / LabVIEW - Basics 2 : 18 - 19.10.01 (2 jours / 2 days) LabVIEW - Base 1 / LabVIEW - Basics 1 : 12 - 14.11.01 (3 jours / 3 days) LabVIEW - DAQ / LabVIEW - DAQ : 15 - 16.11.01 (2 jours / 2...

  12. Places available **

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : CLEAN-2002 : Working in a cleanroom (free course, registration required): 11.4.03 (half-day, afternoon, ) LabView Basics 2 : 10 - 11.4.03 (3 days) DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) AutoCAD 2002 - niveau 1 : 29, 30.4 et 7, 8.5.03 (4 jours) Oracle iDS Reports : Build Internet Reports : 5 - 9.5.03 (5 days) AutoCAD 2002 - niveau 2 : 5 & 6.5.03 (2 jours) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.03 (6 jours) Formation Siemens SIMATIC /Siemens SIMATIC Training : Introduction à STEP7 /Introduction to STEP7 : 3 & 4.6.03 (2 jours/2 days) Programmation STEP7/STEP7 Programming : 31.3 - 4.4.03 / 16 - 20.6.03 (5 jours/5 days) Réseau Simatic Net /Simatic Net Network : 15 & 16.4.03 / 26 & 27.6.03 These courses will be given in French or English following the requests. Cours de sécurité : Etre TSO au CERN : Prochaines sessions : 24, 25 & 27.6....

  13. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : CLEAN-2002 : Working in a cleanroom (free course, registration required): 11.4.03 (half-day, afternoon, ) LabView Basics 2 : 10 - 11.4.03 (3 days) DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) AutoCAD 2002 - niveau 1 : 29, 30.4 et 7, 8.5.03 (4 jours) Oracle iDS Reports : Build Internet Reports : 5 - 9.5.03 (5 days) AutoCAD 2002 - niveau 2 : 5 & 6.5.03 (2 jours) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.03(6 jours) Formation Siemens SIMATIC /Siemens SIMATIC Training : Introduction à STEP7 /Introduction to STEP7 : 3 & 4.6.03 (2 jours/2 days) Programmation STEP7/STEP7 Programming : 31.3 - 4.4.03 / 16 - 20.6.03 (5 jours/5 days) Réseau Simatic Net /Simatic Net Network : 15 & 16.4.03 / 26 & 27.6.03 These courses will be given in French or English following the requests. Cours de sécurité : Etre TSO au CERN : Prochaines sessions : 24, 25 & 27.6...

  14. Places available **

    CERN Multimedia

    2003-01-01

    Des places sont disponibles dans les cours suivants : Places are available in the following courses : C++ for Particle Physicists : 10 - 14.3.03 (6 X 3-hour lectures) Introduction to PVSS : 10.3.03 (half day, afternoon) Basic PVSS : 11 - 13.3.03 (3 days) PVSS - JCOP Framework Tutorial : 14.3.03 (1 day) CLEAN-2002 : Working in a cleanroom : 2.4.03 (half-day, afternoon, free course, registration required) LabView base 1/LabView Basics 1 : 9 - 11.4.03 (3 jours/3 days) Langue à définir/language to be decided DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) AutoCAD 2002 - niveau 1 : 29, 30.4 et 7, 8.5.03 (4 jours) AutoCAD 2002 - niveau 2 : 5 & 6.5.03 (2 jours) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.03 (6 jours) Formation Siemens SIMATIC /Siemens SIMATIC Training : Introduction à STEP7 /Introduction to STEP7 : 11 & 12.3.03 / 3 & 4.6.03 (2 jours/2 days) Programmation STEP7/STEP7 Programming : 31.3 - 4.4.03 / 16...

  15. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : Introduction to PVSS : 10.3.03 (half-day, afternoon) CLEAN-2002 : Working in a cleanroom : 2.4.03 (half-day, afternoon, free course, registration required) LabView Basics 1 : 9 - 11.4.03 (3 days) Language to be decided. DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures). AutoCAD 2002 - niveau 1 : 29, 30.4 et 7, 8.5.03 (4 jours) AutoCAD 2002 - niveau 2 : 5 & 6.5.03 (2 jours) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.03 (6 jours) Siemens SIMATIC Training: Introduction to STEP7 : 3 & 4.6.03 (2 days) STEP7 Programming : 31.3 - 4.4.03 / 16 - 20.6.03 (5 days) Simatic Net Network : 15 & 16.4.03 / 26 & 27.6.03 These courses will be given in French or English following the requests. Cours de sécurité: Etre TSO au CERN : 3 sessions sont programmées pour 2003 : 25, 26 & 28.3.03 - 24, 25 & 27.6.03 - 4, 5 & 7.11.03 (sessions de 3 jours) ** The number o...

  16. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : CLEAN-2002 : Working in a cleanroom (free course, registration required) : 2.4.03 (half-day, afternoon) LabView base 1/LabView Basics 1 (Langue à définir/ language to be decided) : 9 - 11.4.03 (3 jours/3 days) DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) AutoCAD 2002 - niveau 1 : 29, 30.4 et 7, 8.5.03 (4 jours) AutoCAD 2002 - niveau 2 : 5 & 6.5.03 (2 jours) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.03(6 jours) Formation Siemens SIMATIC /Siemens SIMATIC Training : Introduction à STEP7 /Introduction to STEP7 : 3 & 4.6.03 (2 jours/2 days) Programmation STEP7/STEP7 Programming : 31.3 - 4.4.03 / 16 - 20.6.03 (5 jours/5 days) Réseau Simatic Net /Simatic Net Network : 15 & 16.4.03 / 26 & 27.6.03 These courses will be given in French or English following the requests. Cours de sécurité : Etre TSO au CERN : 3 sessions sont programmées pour 2003 : 25...

  17. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses : CLEAN-2002 : Working in a cleanroom (free course, registration required): 11.4.03 (half-day, afternoon) LabView Basics 2 : 10 - 11.4.03 (3 days) DISP-2003 - Spring II Term : Advanced Digital Signal Processing : 30.4, 7, 14, 21.5.03 (4 X 2-hour lectures) AutoCAD 2002 - niveau 1 : 29, 30.4 et 7, 8.5.03 (4 jours) Oracle iDS Reports : Build Internet Reports : 5 - 9.5.03 (5 days) AutoCAD 2002 - niveau 2 : 5 & 6.5.03 (2 jours) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 20, 21, 27 & 28.5.03(6 jours) Formation Siemens SIMATIC /Siemens SIMATIC Training : Introduction à STEP7 /Introduction to STEP7 : 3 & 4.6.03 (2 jours/2 days) Programmation STEP7/STEP7 Programming : 16 - 20.6.03 (5 jours/5 days) Réseau Simatic Net /Simatic Net Network : 15 & 16.4.03 / 26 & 27.6.03 These courses will be given in French or English following the requests. Cours de sécurité : Etre TSO au CERN : Prochaines sessions : 24, 25 & 27.6.03 - 4, 5 & 7....

  18. PLACES AVAILABLE

    CERN Document Server

    Enseignement Technique; Tél. 74924; Technical Training; Monique Duval; Tel. 74924

    2000-01-01

    Places are available in the following courses : Premiers pas avec votre PC 12 - 15.9.00 (4 demi-journées) WORD 20, 21 et 26, 27.9.2000 (4 jours) JAVA programming level 1 25 - 26.9.2000 (2 days) Gaz inflammables 1 26.9.2000 (1 journée) Advanced aspects of PERL 5 6.10.2000 (1 day) Initiation au WWW 10 - 12.10.00 (3 demi-journées) WORD : importer et manipuler des images 16.10.2000 (1 journée) FileMaker 17, 18 et 24, 25.10.00 (4 jours) Nouveautés de WORD 19 et 20.10.2000 (2 jours) ACCESS 1er niveau 30 - 31.10.00 (2 jours)Introduction à PowerPoint 6.11.00 (1 journée)Nouveautés d’EXCEL 7.11.2000(4 demi-journées)Excel 13, 14 et 20, 21.11.00 (4 jours) LabView hands-on 13.11.2000(4 hours)LabView Basics 1 14 - 16.11.2000 (3 days) MS-Project 1er niveau 14-17.11.00 (4 demi-journées) If you wish to participate in one of these courses, please discuss with your supervisor and apply elec...

  19. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: LabView hands-on (bilingue/bilingual): 5.11.02 (matin/morning) LabView DAQ hands-on (bilingue/bilingual):  5.11.02  (après-midi afternoon) Introduction au PC et Windows 2000 au CERN:  6 & 7.11.02  (2 jours) Oracle 8i : Access the Database with Java:  7 & 8.11.02  (2 days) AutoCAD 2002 - niveau 2:  7 & 8.11.02  (2 jours) Introduction to PVSS (free of charge):  11.11.2002 pm  (1/2 day) Basic PVSS:  12 - 14.11.02  (3 days) EXCEL 2000 - niveau 1:  12 & 13.11.02  (2 jours) CLEAN-2002: Working in a Cleanroom (English, free of charge):  13.11.2002  (afternoon) LabView Base 1 :  13 - 15.11.02  (3 jours) AutoCAD 2002 - Level 1:  14, 15, 21, 22.11.2002  (4 days) LabVIEW - Advanced:  18 - 20.11.02  (3 days) Auto...

  20. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: LabView Base 1 :  23 - 25.9.02  (3 jours) Object-Oriented Analysis & Design using UML:  25 - 27.9.02  (3 days) LabView DAQ (E):  26 - 27.9.02  (2 days) Introduction to Oracle 8i : SQL and PL/SQL:  7 - 11.10.02  (5 days) CLEAN-2002 : Working in a Cleanroom (free of charge):  10.10.02  (half-day, p.m.) AutoCAD 2002 - niveau 2 :  14 - 15.10.02  (2 jours) Introduction à DesignSpace :  16.10.02  (1 journée) Introduction to DesignSpace:  17.10.02  (1 day) AutoCAD 2002 - Level 1:  17, 18, 24, 25.10.02  (4 days) AutoCAD Mechanical 6 PowerPack (F) :  21, 22, 23.10 et 4, 5, 6.11.02  (6 jours) Introduction à ANSYS/Introduction to ANSYS (langue à définir suivant demande/ Language to be chosen according to demand):...

  1. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: November 2002   LabView hands-on (bilingue/bilingual): 5.11.02 (matin/morning) LabView DAQ hands-on (bilingue/bilingual):  5.11.02  (après-midi afternoon) PCAD Schémas - Débutants :  5 & 6.11.02  (2 jours) PCAD PCB - Débutants :  9 - 11.11.02  (3 jours) Introduction au PC et Windows 2000 au CERN :  6 & 7.11.02  (2 jours) Oracle 8i : Access the Database with Java :  7 & 8.11.02  (2 days) Introduction to PVSS (free of charge):  11.11.2002 pm  (1/2 day) Basic PVSS:  12 - 14.11.02  (3 days) EXCEL 2000 - niveau 1 :  12 & 13.11.02  (2 jours) CLEAN-2002: Working in a Cleanroom (English, free of charge):  13.11.2002  (afternoon) LabView Base 1 :  13 - 15.11.02  (3 jours) AutoCAD 2002 - niveau 1 :  14, 15, 21, 22.11.02  (4 jours) LabVIEW - Advanced:  18 - 20.11.02  (3 days) Hands-on Object-Oriented Design and Programming with C++ :  19 - 21.11.02  (3 days)  LabVIEW - Basics 2:  21 - 22.11.02 ...

  2. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: Java 2 Enterprise Edition - Part 2: Enterprise JavaBeans:  18 - 20.9.02  (3 days) AutoCAD 2002 - niveau 1 :  19, 20, 26, 27.9.02  (4 jours) LabView Base 1 :  23 - 25.9.02  (3 jours) Object-Oriented Analysis & Design using UML:  25 - 27.9.02  (3 days) LabView DAQ (E):  26 - 27.9.02  (2 days) Introduction to Oracle 8i : SQL and PL/SQL:  7 - 11.10.02  (5 days) CLEAN-2002 : Working in a Cleanroom (free of charge):  10.10.02  (half-day, p.m.) AutoCAD 2002 - niveau 2 :  14 - 15.10.02  (2 jours) Introduction à DesignSpace :  16.10.02  (1 journée) Introduction to DesignSpace:  17.10.02  (1 day) AutoCAD 2002 - Level 1:  17, 18, 24, 25.10.02  (4 days) AutoCAD Mechanical 6 PowerPack (F) :  21, 22, 23.10 et 4, 5, 6.11....

  3. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: Introduction à DesignSpace :  16.10.02  (1 journée) AutoCAD Mechanical 6 PowerPack (F) :  21, 22, 23.10 et 4, 5, 6.11.02  (6 jours) Introduction à ANSYS 21 - 25.10.02  (5 jours/days) HREF-2002: Helium Refrigeration Techniques (English-French, bilingual) :  21 - 25.10.2002  (7 half days) LabVIEW Basics 1 (English):  21 - 23.10.02  (3 days) LabVIEW Basics 2 (English):  24 & 25.10.02  (2 days) Oracle 8i : Access the Database with Java:  7 & 8.11.02  (2 days) AutoCAD 2002 - niveau 2 :  7 & 8.11.02  (2 jours) AutoCAD 2002 - Level 1:  14, 15, 21, 22.11.02  (4 days) LabVIEW - Advanced (English) :  18 - 20.11.2002  (3 days) AutoCAD 2002 - niveau 1 :  19, 20, 25, 26.11.02 (4 jours) Oracle iDS Designer: First Class:&...

  4. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: Introduction to Oracle 8i : SQL and PL/SQL:  7 - 11.10.02  (5 days) CLEAN-2002 : Working in a Cleanroom (free of charge):  10.10.02  (half-day, p.m.) AutoCAD 2002 - niveau 2 :  14 - 15.10.02  (2 jours) Introduction à DesignSpace :  16.10.02  (1 journée) Introduction to DesignSpace:  17.10.02  (1 day) AutoCAD 2002 - Level 1:  17, 18, 24, 25.10.02  (4 days) AutoCAD Mechanical 6 PowerPack (F) :  21, 22, 23.10 et 4, 5, 6.11.02  (6 jours) Introduction à ANSYS/Introduction to ANSYS (langue à définir suivant demande/ Language to be chosen according to demand):  21 - 25.10.02  (5 jours/days) HREF-2002: Helium Refrigeration Techniques (English-French, bilingual) :  21 - 25.10.2002  (7 half days) HREF-2002: Techniques de la Réfri...

  5. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses: PIPES-2003 - Pratique du sertissage de tubes métalliques et multicouches :26.8.03(stage pratique) The CERN EDMS for Engineers (free of charge) : 27.8.03 (1 day) CLEAN-2002 : Travailler en salle blanche (séminaire gratuit) : 4.9.03(une demi-journée) The CERN EDMS for Local Administrators (free of charge) : 24 & 25.9.03 (2 days) HeREF-2003 : Techniques de la réfrigération Hélium (cours en français avec support en anglais) : 6 - 10.10.2003 (7 demi-journées) The Java Programming Language Level 1 : 6 - 7.10.2003 (2 days) Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 8 - 10.10.2003 (3 days) FileMaker - niveau 1 : 9 & 10.10.03 (2 jours) EXCEL 2000 - niveau 1 : 20 & 22.10.03 (2 jours) AutoCAD 2002 - niveau 1 : 20, 21, 27, 28.10.03 (4 jours) CLEAN-2002 : Working in a Cleanroom (free of charge) : 23.10.03 (half day) AutoCAD Mechanical 6 PowerPack (E) : 23, 24, 30, 31.10 & 12, 13.11.03 (6 days) AutoCAD 2002 - niveau 2...

  6. PLACES AVAILABLE

    CERN Multimedia

    Monique Duval

    2002-01-01

    Places are available in the following courses: Introduction to Oracle 8i : SQL and PL/SQL:  7 - 11.10.02  (5 days) CLEAN-2002 : Working in a Cleanroom (free of charge):  10.10.02  (half-day, p.m.) LabView Hands-on (bilingue/bilingual) : 10.10.02 (matin/morning) LabView DAQ Hands-on (bilingue/bilingual)  10.10.02 (après-midi /afternoon) Introduction à DesignSpace :  16.10.02  (1 journée) Introduction to DesignSpace:  17.10.02  (1 day) AutoCAD Mechanical 6 PowerPack (F) :  21, 22, 23.10 et 4, 5, 6.11.02  (6 jours) Introduction à ANSYS/Introduction to ANSYS (langue à définir suivant demande/ Language to be chosen according to demand):  21 - 25.10.02  (5 jours/days) HREF-2002: Helium Refrigeration Techniques (English-French, bilingual) :  21 - 25.10.2002  (7 half days) HREF-2002: Techniques de la...

  7. Places available**

    CERN Multimedia

    2003-01-01

    Places are available in the following courses: The CERN EDMS for Local Administrators : 24 & 25.9.03 (2 days, free of charge) HeREF-2003 : Techniques de la réfrigération Hélium cours en français avec support en anglais) : 6 - 10.10.2003 (7 demi-journées) The Java Programming Language Level 1 : 6 - 7.10.2003 (2 days) Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 8 - 10.10.2003 (3 days) FileMaker - niveau 1 : 9 & 10.10.03 (2 jours) EXCEL 2000 - niveau 1 : 20 & 22.10.03 (2 jours) AutoCAD 2002 - niveau 1 : 20, 21, 27, 28.10.03 (4 jours) CLEAN-2002 : Working in a Cleanroom : 23.10.03 (half day, free of charge) AutoCAD 2002 - Level 1 : 3, 4, 12, 13.11.03 (4 days) AutoCAD 2002 - niveau 2 : 10 & 11.11.03 (2 jours) ACCESS 2000 - niveau 1 : 13 & 14.11.03 (2 jours) AutoCAD Mechanical 6 PowerPack (E) : 17, 18, 24, 25.11 & 1, 2.12.03 (6 days) FrontPage 2000 - niveau 1 : 20 & 21.11.03 (2 jours) MAGNE-03 : Magnétisme pour l'électrotechnique : 25 - 27.11.03 (3 jours) ...

  8. PLACES AVAILABLE

    CERN Multimedia

    Technical Training; Tel. 74924

    2001-01-01

    Places are available in the following courses: Nouveautés d'EXCEL : 5.11.01 (1/2 journée) Introduction a Windows 2000 au CERN : 6.11.01 (1/2 journée) UNIX pour non-programmeurs : 5 - 7.11.01 (3 jours) Design Patterns :  7 - 8.11.01 (2 days) The Java programming language Level 1: 8 - 9.11.01 (2 days) Automates et réseaux de terrain : 13 & 14.11.01 (3 jours) Introduction à Windows 2000 au CERN : 12 - 14.11.01 (1/2 journée) Introduction to Windows 2000 at CERN :  14.11.01  (half-day) Introduction to PERL 5 :  15 - 16.11.01  (2 days) Introduction to C Programming :  21- 23.11.01 (3 days) Programmation TSX Premium 2 : 26 - 30.11.01 (5 jours) Contract Follow-up (F) : 26.11.01 (1/2 journée) Object-Oriented Analysis and Design :  27 - 30.11.2001  (4 days) Hands-on Object-Oriented Design and Programming with C++ :  11 - 13.12.2...

  9. High School Seniors' Career Interests, Educational Plans, and Perceptions of Programs and Services Available at Walla Walla Community College.

    Science.gov (United States)

    VanAusdle, Steven L.; And Others

    In order to develop a marketing program for potential students and assist in institutional planning, a study was conducted at Walla Walla Community College (WWCC), Washington, to obtain information from high school seniors regarding their career interests, educational plans, and perceptions of WWCC's programs and services. Questionnaires were…

  10. The Path to Convergence: Design, Coordination and Social Issues in the Implementation of a Middleware Data Broker.

    Science.gov (United States)

    Slota, S.; Khalsa, S. J. S.

    2015-12-01

    Infrastructures are the result of systems, networks, and inter-networks that accrete, overlay and segment one another over time. As a result, working infrastructures represent a broad heterogeneity of elements - data types, computational resources, material substrates (computing hardware, physical infrastructure, labs, physical information resources, etc.) as well as organizational and social functions which result in divergent outputs and goals. Cyber infrastructure's engineering often defaults to a separation of the social from the technical that results in the engineering succeeding in limited ways, or the exposure of unanticipated points of failure within the system. Studying the development of middleware intended to mediate interactions among systems within an earth systems science infrastructure exposes organizational, technical and standards-focused negotiations endemic to a fundamental trait of infrastructure: its characteristic invisibility in use. Intended to perform a core function within the EarthCube cyberinfrastructure, the development, governance and maintenance of an automated brokering system is a microcosm of large-scale infrastructural efforts. Points of potential system failure, regardless of the extent to which they are more social or more technical in nature, can be considered in terms of the reverse salient: a point of social and material configuration that momentarily lags behind the progress of an emerging or maturing infrastructure. The implementation of the BCube data broker has exposed reverse salients in regards to the overall EarthCube infrastructure (and the role of middleware brokering) in the form of organizational factors such as infrastructural alignment, maintenance and resilience; differing and incompatible practices of data discovery and evaluation among users and stakeholders; and a preponderance of local variations in the implementation of standards and authentication in data access. These issues are characterized by their

  11. [Not Available].

    Science.gov (United States)

    Gutiérrez Avendaño, Jairo

    2016-01-01

    To analyse sociodemographic characteristics, descriptive psychopathology and therapy in the first decade of service of the Hospital Psiquiátrico San Isidro del Valle del Cauca, 1958-1968. Retrospective descriptive study of a series of case histories of the studied period, and by qualitative analysis and conceptual networks. Sociodemographic variables were analysed, and it was observed that, although the patient population increased, hospitalisation was reduced due to the implementation of a "Day Hospital" and outpatient services. The majority of patients were young adults, women engaged in housework, and several lower-middle income patients, primarily referred by their families. Hospital stay was short, with a high frequency of readmissions. The main reason for discharge was improvement, and the predominant diagnosis and symptomatology was schizophrenia, with the treatment being antipsychotic neuroleptics. The correlation of the short time of hospitalisation, more outpatient clinics, the large number of readmissions, and improvement as the reason for discharge, is consistent with the results of the International Pilot Study of Schizophrenia 1968, which included a sample of 100 patients from Hospital psychiatric San Isidro del Valle del Cauca, in which it was concluded that the disorder did not cause a progressive deterioration in patients and that, on the contrary, showed a significant percentage recovery. Copyright © 2015 Asociación Colombiana de Psiquiatría. Publicado por Elsevier España. All rights reserved.

  12. [Not Available].

    Science.gov (United States)

    Palep, Jaydeep H

    2009-01-01

    The term "robot" was coined by the Czech playright Karel Capek in 1921 in his play Rossom's Universal Robots. The word "robot" is from the check word robota which means forced labor. The era of robots in surgery commenced in 1994 when the first AESOP (voice controlled camera holder) prototype robot was used clinically in 1993 and then marketed as the first surgical robot ever in 1994 by the US FDA. Since then many robot prototypes like the Endoassist (Armstrong Healthcare Ltd., High Wycombe, Buck, UK), FIPS endoarm (Karlsruhe Research Center, Karlsruhe, Germany) have been developed to add to the functions of the robot and try and increase its utility. Integrated Surgical Systems (now Intuitive Surgery, Inc.) redesigned the SRI Green Telepresence Surgery system and created the daVinci Surgical System((R)) classified as a master-slave surgical system. It uses true 3-D visualization and EndoWrist((R)). It was approved by FDA in July 2000 for general laparoscopic surgery, in November 2002 for mitral valve repair surgery. The da Vinci robot is currently being used in various fields such as urology, general surgery, gynecology, cardio-thoracic, pediatric and ENT surgery. It provides several advantages to conventional laparoscopy such as 3D vision, motion scaling, intuitive movements, visual immersion and tremor filtration. The advent of robotics has increased the use of minimally invasive surgery among laparoscopically naïve surgeons and expanded the repertoire of experienced surgeons to include more advanced and complex reconstructions.

  13. High-end climate change impact on European water availability and stress: exploring the presence of biases

    Directory of Open Access Journals (Sweden)

    L. V. Papadimitriou

    2015-07-01

    Full Text Available Climate models project a much more substantial warming than the 2 °C target making higher end scenarios increasingly plausible. Freshwater availability under such conditions is a key issue of concern. In this study, an ensemble of Euro-CORDEX projections under RCP8.5 is used to assess the mean and low hydrological states under +4 °C of global warming for the European region. Five major European catchments were analyzed in terms of future drought climatology and the impact of +2 vs. +4 °C global warming was investigated. The effect of bias correction of the climate model outputs and the observations used for this adjustment was also quantified. Projections indicate an intensification of the water cycle at higher levels of warming. Even for areas where the average state may not considerably be affected, low flows are expected to reduce leading to changes in the number of dry days and thus drought climatology. The identified increasing or decreasing runoff trends are substantially intensified when moving from the +2 to the +4 °C of global warming. Bias correction resulted in an improved representation of the historical hydrology. It is also found that the selection of the observational dataset for the application of the bias correction has an impact on the projected signal that could be of the same order of magnitude to the selection of the RCM.

  14. [Not Available].

    Science.gov (United States)

    Abril, Encarnación; Gómez-Conesa, Antonia; Gutiérrez-Santos, Manuel

    2008-05-01

    To assess the quality of physiotherapeutic care in patients treated for low back pain in a Primary Health Care physiotherapy unit, and to improve the quality of the care provided to these patients. The first assessment includes all patients treated in 2002 (n=83). Five criteria corresponding to the initial physiotherapeutic assessment were chosen: C1, pain; C2, disability; C3, mobility, muscle examination, and C5, palpation. In order to detect non-compliance, the Ishikawa Fishbone diagram was used. Corrective measures were established in November 2003: publication of an Oswestry questionnaire model for assessing disability and reflecting on the results obtained. The second assessment includes the period of time from 1st November 2003 to 6th April 2004 (n=32). In the initial assessment, compliances observed were: C1: 21.69%; C2: 0; C3: 69.87%; C4: 78.31%, and C5: 84.33%. After implementing corrective measures a significant improvement was observed in the compliance of C1, C2, and C3. In C4 there was an improvement, and in C5 there was a decrease in compliance, both of them without statistical significance. The carrying out of an improvement cycle has enabled non-compliances in the application of this protocol to be detected and corrected. The corrective measures implemented have led to a reduction of the variability in the records. It is advisable to ensure that compliance does not decrease in the areas that initially showed a high level of compliance. Copyright © 2008 Sociedad Española de Calidad Asistencial. Published by Elsevier Espana. All rights reserved.

  15. [Not Available].

    Science.gov (United States)

    Höck, P

    1994-01-01

    The central region of Switzerland did not participate in the development of psychiatry in the 19th century. It was not before 1909 that the providing for insanes was taken in hand. At that time the capuchin Rufin Steimer founded the first catholic infirmary for mental diseases under the name "Franziskusheim" in the canton of Zug. Brethren of charity came to conduct it. Steimer realized there a project which formerly had seemed impossible. But he was no expert, and his hospital could not be perfect. It was merely a place for taking persons in custody. Because this sanatorium was restricted for men, one had no provision for women until 1927. In this year, the congregation of Sisters of the Holy Cross in Menzingen inaugurated a catholic women's infirmary in an aristocratic villa called "Meisenberg". Both hospitals came under the common direction of professor Johann Baptist Manser. Then they were extended, brought up to date and got modern institutions for treatment. His succesors maintained the high standard. The Franziskusheim as the greater of them is now the psychiatric centre of the cantons of Uri, Schwyz, and Zug. A new building has been opened in March 1994. Both homes are private institutions till now and have preserved their religious background. The gradual rehabilitation of convalescents, the employment of persons with physical or mental defects and the care for sufferings from alcoholism or drugs are great duties of the present time. The above-mentioned cantons have therefore founded places of care and a Service of Social Medicine. There exist now houses for transitory or permanent lodging, special factory-places and particular workshops. These installations, self-help-groups and especially the "Foundation Phoenix" for advice and protection are giving useful and meritorious assistance.

  16. [Not Available].

    Science.gov (United States)

    Carlino, A

    1994-01-01

    Anatomical fugitive sheets are of great interest, as a typographical genre, not only for the history of printing and the history of medicine, but also, more generally, for the history of culture as a whole. They were published as folio woodcuts (more rarely engravings) in Germany, France, Italy, England and the Netherlands from the end of the XVth centkury to the mid XVIIIth century. These sheets contain a figure representing the human body (male and female) and a text describing in a concise and quite rough way the elements of the illustration. What is unusual about these sheets is that the trunk of the figures and some of the internal organs can be lifted up or peeled away, like some contemporary books for children. The figures and some internal parts are very often coloured. Judging from the number of editions (I have found 15 editions published between 1538 and 1540!), anatomical sheets met with a huge commercial success and a very wide circulation indeed. Students of the faculties of medicine and philosophy and barber-surgeons were the more obvious consumers. Students would use them as aids to memory to accompany non-illustrated medical books; barbers to grasp some basic notions of the human body, useful for the practice of phlebotomy. They could be purchased in bookshops, but they were more likely to have been sold in market places or around the University where many colporteurs displayed their cheap prints and booklets. I shall argue, however, that anatomical fugitive sheets have also been produced for and used by a non-professional public, literate but not highly educated, unable to read Latin and more used to learning from images rather than from the written word. A public that was eager to discover the inner secrets of the bodily self, the divine machine that we inhabit. From a scientific point of view anatomical fugitive sheets often reveal errors and differences compared to academic textual and iconographic material on the same subject. The discrepancy

  17. [Not Available].

    Science.gov (United States)

    Spivak, M

    1987-01-01

    Some ideas, whether right or wrong, seem never to die, whatever might be the general evolution of knowledge, of science, or simply of good common sense. This is exactly the case with physical education or sports. For centuries, and especially since the middle of the nineteenth century, its advocates have fought for recognition of its all-round virtues, taken as a concept. But to attain a high level of recognition, not only in society but in official government circles, certain conditions were necessary. Education as a whole, around the middle of the nineteenth century, had to be strict and similar to military drill to be considered efficient, although the French middle classes and bourgeoisie had very little taste for the military. Although they admired physical prowess they had a horror of regimentation. But later on, when the Prussians so easily defeated Austria, feelings of doubt in French superiority began to spread, and a handful of theoreticians of physical exercise tried to show that to combat the so-called degeneration of the race, it was essential to impose a system of education in which physical exercise, coupled with military drill, still had an important place. As scientific arguments they referred to the theories of evolution and its then accepted principle, according to Lamarck, or the transmission of acquired properties and character. Darwin was still unknown in France at that time. These zealous advocates succeeded in convincing the Minister of Public Education, Victor Duruy, to include gymnastics in the normal course of studies in all schools, and by 1869 one can say that a craze for all types of physical exercise and sport had spread into many levels of society. That was the start of a never-ending movement which has passed through various stages of evolution corresponding to the changes in society itself. It has therefore changed its methods, its ways, its forms, but the overall principle remains the same, in spite of the improved understanding

  18. Culture-Independent Metagenomic Surveillance of Commercially Available Probiotics with High-Throughput Next-Generation Sequencing.

    Science.gov (United States)

    Patro, Jennifer N; Ramachandran, Padmini; Barnaba, Tammy; Mammel, Mark K; Lewis, Jada L; Elkins, Christopher A

    2016-01-01

    Millions of people consume dietary supplements either following a doctor's recommendation or at their own discretion to improve their overall health and well-being. This is a rapidly growing trend, with an associated and expanding manufacturing industry to meet the demand for new health-related products. In this study, we examined the contents and microbial viability of several popular probiotic products on the United States market. Culture-independent methods are proving ideal for fast and efficient analysis of foodborne pathogens and their associated microbial communities but may also be relevant for analyzing probiotics containing mixed microbial constituents. These products were subjected to next-generation whole-genome sequencing and analyzed by a custom in-house-developed k-mer counting method to validate manufacturer label information. In addition, the batch variability of respective products was examined to determine if any changes in their formulations and/or the manufacturing process occurred. Overall, the products we tested adhered to the ingredient claims and lot-to-lot differences were minimal. However, there were a few discrepancies in the naming of closely related Lactobacillus and Bifidobacterium species, whereas one product contained an apparent Enterococcus contaminant in two of its three lots. With the microbial contents of the products identified, we used traditional PCR and colony counting methods to comparatively assess our results and verify the viability of the microbes in these products with regard to the labeling claims. Of all the supplements examined, only one was found to be inaccurate in viability. Our use of next-generation sequencing as an analytical tool clearly demonstrated its utility for quickly analyzing commercially available products containing multiple microbes to ensure consumer safety. IMPORTANCE The rapidly growing supplement industry operates without a formal premarket approval process. Consumers rely on product labels to

  19. Detection of highly toxic elements (lead and chromium) in commercially available eyeliner (kohl) using laser induced break down spectroscopy

    Science.gov (United States)

    Gondal, M. A.; Dastageer, M. A.; Al-Adel, F. F.; Naqvi, A. A.; Habibullah, Y. B.

    2015-12-01

    A sensitive laser induced breakdown spectroscopic system was developed and optimized for using it as a sensor for the detection of trace levels of lead and chromium present in the cosmetic eyeliner (kohl) of different price ranges (brands) available in the local market. Kohl is widely used in developing countries for babies as well adults for beautification as well eyes protection. The atomic transition lines at 405.7 nm and 425.4 nm were used as the marker lines for the detection of lead and chromium respectively. The detection system was optimized by finding the appropriate gate delay between the laser excitation and the data acquisition system and also by achieving optically thin plasma near the target by establishing the local thermodynamic equilibrium condition. The detection system was calibrated for these two hazardous elements and the kohl samples under investigation showed 8-15 ppm by mass of lead and 4-9 ppm by mass of Chromium, which are higher than the safe permissible levels of these elements. The limits of detection of the LIBS system for lead and chromium were found to be 1 and 2 ppm respectively.

  20. Variation in bird's originating nitrogen availability limits High Arctic tundra development over last 2000 year (Hornsund, Svalbard)

    Science.gov (United States)

    Skrzypek, Grzegorz; Wojtuń, Bronisław; Hua, Quan; Richter, Dorota; Jakubas, Dariusz; Wojczulanis-Jakubas, Katarzyna; Samecka-Cymerman, Aleksandra

    2016-04-01

    Arctic and subarctic regions play important roles in the global carbon balance. However, nitrogen (N) deficiency is a major constraint for organic carbon sequestration in the High Arctic. Hence, the identification of the relative contributions from different N-sources is critical for understanding the constraints that limit tundra growth. The stable nitrogen composition of the three main N-sources and numerous plants were analyzed in ten tundra types (including those influenced by seabirds) in the Fuglebekken catchment (Hornsund, Svalbard, 77°N 15°E). The percentage of the total tundra N-pool provided by seabirds' feces (from planktivorous colonially breeding little auks Alle alle), ranged from 0-21% in Patterned-ground tundra to 100% in Ornithocoprophilous tundra. The total N-pool utilized by tundra plants in the studied catchment originated from birds (36%), atmospheric deposition (38%), and N2-fixation (26%). The results clearly show that N-pool in the tundra is significantly supplemented by nesting seabirds. Thus, if they experienced climate change induced substantial negative environmental pressure, it would adversely influence the tundra N-budget (Skrzypek et al. 2015). The growth rates and the sediment thickness (PLoS ONE 10(9): e0136536.