WorldWideScience

Sample records for justice telecommunications network

  1. Telecommunication networks

    CERN Document Server

    Iannone, Eugenio

    2011-01-01

    Many argue that telecommunications network infrastructure is the most impressive and important technology ever developed. Analyzing the telecom market's constantly evolving trends, research directions, infrastructure, and vital needs, Telecommunication Networks responds with revolutionized engineering strategies to optimize network construction. Omnipresent in society, telecom networks integrate a wide range of technologies. These include quantum field theory for the study of optical amplifiers, software architectures for network control, abstract algebra required to design error correction co

  2. Telecommunication Networks

    DEFF Research Database (Denmark)

    Olsen, Rasmus Løvenstein; Balachandran, Kartheepan; Hald, Sara Ligaard

    2014-01-01

    , etc. First, the role of basic communication is examined with a focus on critical infrastructures. We look at heterogenic networks and standards for smart grids, to give some insight into what has been done to ensure inter-operability in this direction. We then go to the physical network, and look...... at the deployment of the physical layout of the communication network and the related costs. This is an important aspect as one option to use existing networks is to deploy dedicated networks. Following this, we look at some generic models that describe reliability for accessing dynamic information. This part......In this chapter, we look into the role of telecommunication networks and their capability of supporting critical infrastructure systems and applications. The focus is on smart grids as the key driving example, bearing in mind that other such systems do exist, e.g., water management, traffic control...

  3. Understanding telecommunications networks

    CERN Document Server

    Valdar, Andy

    2017-01-01

    A telecommunications network is an electronic system of links, nodes and the controls that govern their operations to allow voice and data transfer among users and devices. This fully revised, updated and expanded second edition covers all aspects of today's networks, including how they are planned, formed and operated.

  4. Telecommunication Value Network in Malaysia

    OpenAIRE

    2009-01-01

    Business network is believed to offer a superior way of managing the challenges related to the uncertainty and complexity of the contemporary business environment in Malaysia telecommunication industry. This study strives to analyze the value business network in Malaysia telecommunication industry with emphasize on the market leader, Maxis Communication Bhd in its mobile content services. The business network represents the form of organization where the focal company focuses on certain key a...

  5. 47 CFR 54.519 - State telecommunications networks.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false State telecommunications networks. 54.519 Section 54.519 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES... telecommunications networks. (a) Telecommunications services. State telecommunications networks may secure...

  6. Transition States of Telecommunication Network

    Directory of Open Access Journals (Sweden)

    Gustav Cepciansky

    2004-01-01

    Full Text Available The dimensioning and performance of the telecommunication network take place according to the theory of teletrafficalways taking into account the stable state. But the utterance of the network being in an unstable state is less known. In this paper, wewould like to remind the network performance in the unstable state and to draw attention to the practical consequences of transitionstates.

  7. Synthesis of Reliable Telecommunication Networks

    Directory of Open Access Journals (Sweden)

    Dusan Trstensky

    2005-01-01

    Full Text Available In many application, the network designer may to know to senthesise a reliable telecommunication network. Assume that a network, denoted Gm,e has the number of nodes n and the number of edges e, and the operational probability of each edge is known. The system reliability of the network is defined to be the reliability that every pair of nodes can communicate with each other. A network synthesis problem considered in this paper is to find a network G*n,e, that maximises system reliability over the class of all networks for the classes of networks Gn,n-1, Gn,m and Gn,n+1 respectively. In addition an upper bound of maximum reliability for the networks with n-node and e-edge (e>n+2 is derived in terms of node. Computational experiments for the reliability upper are also presented. the results show, that the proposed reliability upper bound is effective.

  8. Telecommunications network modelling, planning and design

    CERN Document Server

    Evans, Sharon

    2003-01-01

    Telecommunication Network Modelling, Planning and Design addresses sophisticated modelling techniques from the perspective of the communications industry and covers some of the major issues facing telecommunications network engineers and managers today. Topics covered include network planning for transmission systems, modelling of SDH transport network structures and telecommunications network design and performance modelling, as well as network costs and ROI modelling and QoS in 3G networks.

  9. Estimating network effects in China's mobile telecommunications

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    A model is proposed along with empirical investigation to prove the existence of network effects in China's mobile telecommunications market. Futhernore, network effects on China's mobile telecommunications are estimated with a dynamic model. The structural parameters are identified from regression coefficients and the results are analyzed and compared with another literature. Data and estimation issues are also discussed. Conclusions are drawn that network effects are significant in China's mobile telecommunications market, and that ignoring network effects leads to bad policy making.

  10. Mobile telecommunication networks choice among Ghanaians

    Directory of Open Access Journals (Sweden)

    Boateng Henry

    2013-07-01

    Full Text Available The paper investigates the factors influencing customers choice of telecommunication network in Ghana. The survey design was employed to enable the researchers perform statistical analysis. Questionnaire consisting of Likert scale question was used to collect the primary data. Multiple regression analysis was performed to ascertain the factors influencing customers’ choice of telecommunication networks. The study found six factors that influence customers to choose a particular network. These factors include; brand awareness, brand image, perceived quality, price, convenience and brand loyalty. The study concludes that all the six factors contribute to the factors that drive consumer choice of telecommunications service in Ghana.

  11. RATIONAL SOLUTIONS FOR DEVELOPMENT OF TELECOMMUNICATIONS NETWORKS

    OpenAIRE

    Sokolov, A.; Sokolov, N.

    2014-01-01

    The number of complicated problems has to be solved during modernization of the telecommunication networks. Some problems can be defined as a search for rational solutions instead of the traditional approach that consists in finding the cost function optimum. This new approach minimizes the risk that inevitably arises when elaborating a long term plan for the telecommunication networks development. The article discusses the proposed methodological approach of finding rational solutions. Probl...

  12. A new regime for future telecommunication network operations

    NARCIS (Netherlands)

    Gustafsson, S.; Trommelen, P.H.; Vos, C. de

    2010-01-01

    The increasingly crucial role that telecommunications plays in today's information society calls for a new regime for telecommunication network operations. An unbundling of business roles and associated responsibilities is proposed, providing more economic network operations and higher availability

  13. Reputation-based Telecommunication Network Selection

    CERN Document Server

    Seigneur, Jean-Marc

    2010-01-01

    Nowadays, mobile users can switch between different available networks, for example, nearby WiFi networks or their standard mobile operator network. Soon it will be extended to other operators. However, unless telecommunication operators can directly benefit from allowing a user to switch to another operator, operators have an incentive to keep their network quality of service confidential to avoid that their users decide to switch to another network. In contrast, in a user-centric way, the users should be allowed to share their observations regarding the networks that they have used. In this paper, we present our work in progress towards attack-resistant sharing of quality of service information and network provider reputation among mobile users.

  14. Queuing theory and telecommunications networks and applications

    CERN Document Server

    Giambene, Giovanni

    2014-01-01

    This book provides a basic description of current networking technologies and protocols as well as important tools for network performance analysis based on queuing theory. The second edition adds selected contents in the first part of the book for what concerns: (i) the token bucket regulator and traffic shaping issues; (ii) the TCP protocol congestion control that has a significant part in current networking; (iii) basic satellite networking issues; (iv) adding details on QoS support in IP networks. The book is organized so that networking technologies and protocols (Part I) are first and are then followed by theory and exercises with applications to the different technologies and protocols (Part II). This book is intended as a textbook for master level courses in networking and telecommunications sectors.

  15. Architectures of fiber optic network in telecommunications

    Science.gov (United States)

    Vasile, Irina B.; Vasile, Alexandru; Filip, Luminita E.

    2005-08-01

    The operators of telecommunications have targeted their efforts towards realizing applications using broad band fiber optics systems in the access network. Thus, a new concept related to the implementation of fiber optic transmission systems, named FITL (Fiber In The Loop) has appeared. The fiber optic transmission systems have been extensively used for realizing the transport and intercommunication of the public telecommunication network, as well as for assuring the access to the telecommunication systems of the great corporations. Still, the segment of the residential users and small corporations did not benefit on large scale of this technology implementation. For the purpose of defining fiber optic applications, more types of architectures were conceived, like: bus, ring, star, tree. In the case of tree-like networks passive splitters (that"s where the name of PON comes from - Passive Optical Network-), which reduce significantly the costs of the fiber optic access, by separating the costs of the optical electronic components. That's why the passive fiber optics architectures (PON represent a viable solution for realizing the access at the user's loop. The main types of fiber optics architectures included in this work are: FTTC (Fiber To The Curb); FTTB (Fiber To The Building); FTTH (Fiber To The Home).

  16. Aeronautical telecommunications network advances, challenges, and modeling

    CERN Document Server

    Musa, Sarhan M

    2015-01-01

    Addresses the Challenges of Modern-Day Air Traffic Air traffic control (ATC) directs aircraft in the sky and on the ground to safety, while the Aeronautical Telecommunications Network (ATN) comprises all systems and phases that assist in aircraft departure and landing. The Aeronautical Telecommunications Network: Advances, Challenges, and Modeling focuses on the development of ATN and examines the role of the various systems that link aircraft with the ground. The book places special emphasis on ATC-introducing the modern ATC system from the perspective of the user and the developer-and provides a thorough understanding of the operating mechanism of the ATC system. It discusses the evolution of ATC, explaining its structure and how it works; includes design examples; and describes all subsystems of the ATC system. In addition, the book covers relevant tools, techniques, protocols, and architectures in ATN, including MIPv6, air traffic control (ATC), security of air traffic management (ATM), very-high-frequenc...

  17. A telecommunications journey rural health network.

    Science.gov (United States)

    Moore, Joe

    2012-01-01

    Utilizing a multi-gigabit statewide fiber healthcare network, Radiology Consultants of Iowa (RCI) set out to provide instantaneous service to their rural, critical access, hospital partners. RCIs idea was to assemble a collection of technologies and services that would even out workflow, reduce time on the road, and provide superior service. These technologies included PACS, voice recognition enabled dictation, HL7 interface technology, an imaging system for digitizing paper and prior films, and modern communication networks. The Iowa Rural Health Telecommunication Project was undertaken to form a system that all critical access hospitals would participate in, allowing RCI radiologists the efficiency of "any image, anywhere, anytime".

  18. Gigabit-capable Passive Optical Network in Telecommunication Networks

    Science.gov (United States)

    Selmanović, Faruk; Skaljo, Edvin; Nemsic, Boris

    2012-04-01

    The main application and usage of a gigabit-capable passive optical network in a telecommunication network is for providing triple-play services to resident users. However, the gigabit-capable passive optical network itself has more bandwidth than triple-play users need, as well as other mechanisms like the ability to provide quality of service. This excess bandwidth and these advance mechanisms can be utilized for other services and applications inside the same telecommunication network. Some of these advanced applications that use this excess bandwidth and capability of providing quality of service are described, and results of tests are presented in this article.

  19. Simulating Autonomous Telecommunication Networks for Space Exploration

    Science.gov (United States)

    Segui, John S.; Jennings, Esther H.

    2008-01-01

    Currently, most interplanetary telecommunication systems require human intervention for command and control. However, considering the range from near Earth to deep space missions, combined with the increase in the number of nodes and advancements in processing capabilities, the benefits from communication autonomy will be immense. Likewise, greater mission science autonomy brings the need for unscheduled, unpredictable communication and network routing. While the terrestrial Internet protocols are highly developed their suitability for space exploration has been questioned. JPL has developed the Multi-mission Advanced Communications Hybrid Environment for Test and Evaluation (MACHETE) tool to help characterize network designs and protocols. The results will allow future mission planners to better understand the trade offs of communication protocols. This paper discusses various issues with interplanetary network and simulation results of interplanetary networking protocols.

  20. Simulating Autonomous Telecommunication Networks for Space Exploration

    Science.gov (United States)

    Segui, John S.; Jennings, Esther H.

    2008-01-01

    Currently, most interplanetary telecommunication systems require human intervention for command and control. However, considering the range from near Earth to deep space missions, combined with the increase in the number of nodes and advancements in processing capabilities, the benefits from communication autonomy will be immense. Likewise, greater mission science autonomy brings the need for unscheduled, unpredictable communication and network routing. While the terrestrial Internet protocols are highly developed their suitability for space exploration has been questioned. JPL has developed the Multi-mission Advanced Communications Hybrid Environment for Test and Evaluation (MACHETE) tool to help characterize network designs and protocols. The results will allow future mission planners to better understand the trade offs of communication protocols. This paper discusses various issues with interplanetary network and simulation results of interplanetary networking protocols.

  1. Quantum teleportation over the Swisscom telecommunication network

    CERN Document Server

    Landry, O; Beveratos, A; Zbinden, H; Gisin, Nicolas; Landry, Olivier; Beveratos, Alexios; Zbinden, Hugo; Gisin, Nicolas

    2006-01-01

    We present a quantum teleportation experiment in the quantum relay configuration using the installed telecommunication network of Swisscom. In this experiment, the Bell state measurement occurs well after the entanglement has been distributed, at a point where the photon upon which data is teleported is already far away, and the entangled qubits are photons created from a different crystal and laser pulse than the teleported qubit. A raw fidelity of 0.93+/-0.04 has been achieved using a heralded single-photon source.

  2. Optical fiber telecommunications systems and networks

    CERN Document Server

    Kaminow, Ivan; Willner, Alan E

    2013-01-01

    Optical Fiber Telecommunications VI (A&B) is the sixth in a series that has chronicled the progress in the R&D of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition brings a fresh look to many essential topics, including devices, subsystems, systems and networks. A central theme is the enabling of high-bandwidth communications in a cost-effective manner for the development of customer applications. These volumes are an ideal reference for R&D engineers and managers, optical systems implementers, university researchers and s

  3. Operational performance of the primary transport telecommunication network of Ukraine

    Directory of Open Access Journals (Sweden)

    Bondarenko O. V.

    2013-12-01

    Full Text Available The paper presents statistical data on the number, nature and causes of the damage to underground fiber-optic communication lines, on which the transport telecommunication primary network is based, using an example of Donetsk and Lugansk regions for the period between 2001 and 2010. Comparison of these characteristics with the values of similar parameters over 2001—2005 allows to develop recommendations for the improvement of the reliability of telecommunication networks.

  4. Disaster prevention of telecommunication network; Tsushinmo no bosai taisaku

    Energy Technology Data Exchange (ETDEWEB)

    Maki, H.; Niwa, M. [Nippon Telegraph and Telephone Corp., Tokyo (Japan)

    1995-06-05

    A large scale earthquake was frequently occurred in 1993, 94 causing many damages. Based on the consideration that the telecommunication network has an important role in such the disasters, various measures have been taken from the past. The basic ideas in taking measures for the telecommunication network against disasters are; (1) `Upgrading of system reliability` which includes the strengthening of equipment itself and the redundant composition of network, (2) `Prevention of communication stoppage` which enables to allow communication even when the system is damaged, and (3) `Early reactivation of telecommunication service` when the system is physically damaged. Some examples proved that these approaches taken from the past are effective in the recent seismic disaster. 5 figs., 1 tab.

  5. Information technology -- Telecommunications and information exchange between systems -- Corporate telecommunication networks -- Signalling interworking between QSIG and H.323 -- Generic functional protocol for the support of supplementary services

    CERN Document Server

    International Organization for Standardization. Geneva

    2001-01-01

    Information technology -- Telecommunications and information exchange between systems -- Corporate telecommunication networks -- Signalling interworking between QSIG and H.323 -- Generic functional protocol for the support of supplementary services

  6. A Functional Complexity Framework for the Analysis of Telecommunication Networks

    CERN Document Server

    Dzaferagic, Merim; Macaluso, Irene; Marchetti, Nicola

    2016-01-01

    The rapid evolution of network services demands new paradigms for studying and designing networks. In order to understand the underlying mechanisms that provide network functions, we propose a framework which enables the functional analysis of telecommunication networks. This framework allows us to isolate and analyse a network function as a complex system. We propose functional topologies to visualise the relationships between system entities and enable the systematic study of interactions between them. We also define a complexity metric $C_F$ (functional complexity) which quantifies the variety of structural patterns and roles of nodes in the topology. This complexity metric provides a wholly new approach to study the operation of telecommunication networks. We study the relationship between $C_F$ and different graph structures by analysing graph theory metrics in order to recognize complex organisations. $C_F$ is equal to zero for both a full mesh topology and a disconnected topology. We show that complexi...

  7. The Effect of Work Stress and Coping on Organizational Justice: An Empirical Investigation of Turkish Telecommunications and Banking Industries

    Directory of Open Access Journals (Sweden)

    Tutku Seckin-Celik

    2016-12-01

    Full Text Available The aim of this paper is to investigate the role of coping mechanisms and work stress on employees’ perceptions of organizational justice. A survey of 211 white-collar employees in the banking and telecommunications industries was taken. Multiple regression analyses were performed in order to understand the effect of coping mechanisms and work stress on organizational justice. The results showed that overall perception of justice is affected negatively by work stress and positively by coping mechanisms, except emotion-focused coping. However, sub-dimensions of organizational justice showed distinctive relationship patterns. Thus, it was concluded both individual and organizational determinants play a role in employees’ perceptions of organizational justice.

  8. QKD in Standard Optical Telecommunications Networks

    CERN Document Server

    Lancho, D; Elkouss, D; Soto, M; Martin, V; 10.1007/978-3-642-11731-2_18

    2010-01-01

    To perform Quantum Key Distribution, the mastering of the extremely weak signals carried by the quantum channel is required. Transporting these signals without disturbance is customarily done by isolating the quantum channel from any noise sources using a dedicated physical channel. However, to really profit from this technology, a full integration with conventional network technologies would be highly desirable. Trying to use single photon signals with others that carry an average power many orders of magnitude bigger while sharing as much infrastructure with a conventional network as possible brings obvious problems. The purpose of the present paper is to report our efforts in researching the limits of the integration of QKD in modern optical networks scenarios. We have built a full metropolitan area network testbed comprising a backbone and an access network. The emphasis is put in using as much as possible the same industrial grade technology that is actually used in already installed networks, in order t...

  9. Ad hoc networks telecommunications and game theory

    CERN Document Server

    Benslama, Malek; Batatia, Hadj

    2015-01-01

    Random SALOHA and CSMA protocols that are used to access MAC in ad hoc networks are very small compared to the multiple and spontaneous use of the transmission channel. So they have low immunity to the problems of packet collisions. Indeed, the transmission time is the critical factor in the operation of such networks. The simulations demonstrate the positive impact of erasure codes on the throughput of the transmission in ad hoc networks. However, the network still suffers from the intermittency and volatility of its efficiency throughout its operation, and it switches quickly to the satura

  10. Network Asymmetries and Access Pricing in Cellular Telecommunications

    NARCIS (Netherlands)

    V. Kocsis

    2005-01-01

    textabstractNetwork shares and retail prices are not symmetric in the telecommunications market with multiple bottlenecks which give rise to new questions of access fee regulation. In this paper we consider a model with two types of asymmetry arising from different entry timing, i.e. a larger reputa

  11. Network Asymmetries and Access Pricing in Cellular Telecommunications

    NARCIS (Netherlands)

    V. Kocsis

    2005-01-01

    textabstractNetwork shares and retail prices are not symmetric in the telecommunications market with multiple bottlenecks which give rise to new questions of access fee regulation. In this paper we consider a model with two types of asymmetry arising from different entry timing, i.e. a larger reputa

  12. A Flexible System for Simulating Aeronautical Telecommunication Network

    Science.gov (United States)

    Maly, Kurt; Overstreet, C. M.; Andey, R.

    1998-01-01

    At Old Dominion University, we have built Aeronautical Telecommunication Network (ATN) Simulator with NASA being the fund provider. It provides a means to evaluate the impact of modified router scheduling algorithms on the network efficiency, to perform capacity studies on various network topologies and to monitor and study various aspects of ATN through graphical user interface (GUI). In this paper we describe briefly about the proposed ATN model and our abstraction of this model. Later we describe our simulator architecture highlighting some of the design specifications, scheduling algorithms and user interface. At the end, we have provided the results of performance studies on this simulator.

  13. IDS in Telecommunication Network using PCA

    Directory of Open Access Journals (Sweden)

    T. K. Abdelhamid

    2013-07-01

    Full Text Available Data Security has become a very serious part of any organizational information system.Internet threatshavebecome moreintelligentso itcan deceivethe basic security solutions such as firewalls and antivirusscanners.To enhance the overall security of the networkan additional security layer such asintrusiondetection system(IDShas to be added.The anomaly detection IDSisa typeof IDS thatcandifferentiatebetweennormal and abnormal in thedata monitored. This paper proposes two types of IDS, oneof themcanbeusedasa network intrusion detection system(NIDS with overallsuccess (0.9161 and highdetection rate (0.9288 andtheothertypecanalso beusedasa host intrusion detection system(HIDS withoverall success (0.8493 and very high detection rate (0.9628using NSL-KDD data set

  14. Low energy air conditioning of shelters for telecommunication networks

    Energy Technology Data Exchange (ETDEWEB)

    Romagnoni, P. [Ist. Univ. di Architettura, Venezia (Italy); Scattolin, M. [Liebert Hiross, Piove di Sacco (PD) (Italy); Zecchin, R. [Dipt. di Fisica Tecnica, Padova (Italy)

    2000-07-01

    The control of the air temperature in a shelter for telecommunication networks is an important task for the correct operation of its electronic equipment. Different technical solutions have been studied in order to improve the energy performances of air conditioning plants: for this purpose direct free cooling allows to reduce the energy consumption to maintain the internal air temperature below the prescribed values. Nowadays the internal air temperature may rise up to 60 C, due to the high technology of the electronic equipment, and new solutions for the air temperature control can be proposed. This paper analyses the dynamic thermal performances of a shelter used in telecommunication networks, fitted up with an ''air - to air'' plate heat exchanger without mixing between internal and external air flows. Useful information, concerning the thermal and energy performances of this system is given for design purposes. (orig.)

  15. Improvement in Energy Optimization in Telecommunication Network Service

    Directory of Open Access Journals (Sweden)

    Kadiri Kamoru. O

    2014-09-01

    Full Text Available Energy-efficient operation is an important issue today in telecommunication networks and in the near future. Due to the fact that the energy consumption rises with the increased in demand for capacity and network speed, this arises a strategies for a sustainable network management. It is a well-known fact that traffic demands vary significantly over periods and areas, most notably in day/night- and in weekly cycles. This provides the main potential for energy-saving strategies. Here is the question of how much power is necessary to operate a network during peak or low-traffic times? How much energy is spent in the core and in metro regions of the network and how big are the savings in low-demand scenarios if we always assume the system power-minimum in these situations? The study respects realistic side constraints, such as protection requirements and routing schemes, and takes the special structure of an extensive nation-wide optical network, including backbone and regional sections, into account. This paper presents a comprehensive summary of recent work addressing energy efficient and low-power design within all layers of the telecommunication network

  16. AN APPLICATION FOR EFFICIENT TELECOMMUNICATION NETWORKS PROVISIONING USING LINEAR PROGRAMMING

    Directory of Open Access Journals (Sweden)

    Maria Augusta Soares Machado

    2015-03-01

    Full Text Available This paper presents a practical proposition for the application of the Linear Programming quantitative method in order to assist planning and control of customer circuit delivery activities in telecommunications companies working with the corporative market. Based upon data provided for by a telecom company operating in Brazil, the Linear Programming method was employed for one of the classical problems of determining the optimum mix of production quantities for a set of five products of that company: Private Telephone Network, Internet Network, Intranet Network, Low Speed Data Network, and High Speed Data Network, in face of several limitations of the productive resources, seeking to maximize the company’s monthly revenue. By fitting the production data available into a primary model, observation was made as to what number of monthly activations for each product would be mostly optimized in order to achieve maximum revenues in the company. The final delivery of a complete network was not observed but the delivery of the circuits that make it up, and this was a limiting factor for the study herein, which, however, brings an innovative proposition for the planning of private telecommunications network provisioning.

  17. Photovoltaic power supply for telecommunication network components in remote areas

    Energy Technology Data Exchange (ETDEWEB)

    Steinhueser, A.; Schulz, W.; Schmidt, H.; Roth, W. [Fraunhofer Inst. for Solar Energy Systems ISE, Freiburg (Germany)

    2000-07-01

    In general, telecommunication facilities do not allow much flexibility in the choice of location; the main criterion is that the facility must work with 100% availability and reliability. Corresponding to the wide spectrum of locations, the applied power supply technologies are very diverse: grid connection, diesel generators, photovoltaics (PV), fuel cells, thermoelectric converters and wind generators. The first three types of technology have been used by the telecommunications industry for decades. The other options are at developmental stages between laboratory samples and limited series production. The traditional approach to supply power remote from the grid is by using diesel generators and storage batteries. This means high power ratings, but also high prices and a high maintenance demand. The convergence of telecommunications networks, i.e. overlap of the cabled network and radio cellular networks, with its enormous demand for installation sites, introduces new demands on power supplies: they must be reliable, maintenance-free, inexpensive, flexibly adaptable to widely divergent technologies. At two examples, a PV-hybrid system for a repeater station for cellular phones and a PV powered intelligent information system, the advantages that offer PV off-grid solutions in the system design are shown. (orig.)

  18. Actual Question of Telecommunication Systems and Networks Research Actual Question of Telecommunication Systems and Networks Research

    Directory of Open Access Journals (Sweden)

    D. Ju. Jurcenko

    2006-01-01

    Full Text Available

     

    This contribution aims to inform readers about topics of scientific research performed at the Department of Radioand Communication Engineering (Kafedra radiotechniki i elektrosvjazi, the Institute of Control Systems, Telecommunications and Electrification, Moscow State University of Communication Means (MIIT. The paper contains brief descriptions of papers written by PhD students of the given Department that are available at.

     

    This contribution aims to inform readers about topics of scientific research performed at the Department of Radioand Communication Engineering (Kafedra radiotechniki i elektrosvjazi, the Institute of Control Systems, Telecommunications and Electrification, Moscow State University of Communication Means (MIIT. The paper contains brief descriptions of papers written by PhD students of the given Department that are available at.

  19. Satellite communications for the next generation telecommunication services and networks

    Science.gov (United States)

    Chitre, D. M.

    1991-01-01

    Satellite communications can play an important role in provisioning the next-generation telecommunication services and networks, provided the protocols specifying these services and networks are satellite-compatible and the satellite subnetworks, consisting of earth stations interconnected by the processor and the switch on board the satellite, interwork effectively with the terrestrial networks. The specific parameters and procedures of frame relay and broadband integrated services digital network (B-ISDN) protocols which are impacted by a satellite delay. Congestion and resource management functions for frame relay and B-ISDN are discussed in detail, describing the division of these functions between earth stations and on board the satellite. Specific onboard and ground functions are identified as potential candidates for their implementation via neural network technology.

  20. Novel anomaly detection approach for telecommunication network proactive performance monitoring

    Institute of Scientific and Technical Information of China (English)

    Yanhua YU; Jun WANG; Xiaosu ZHAN; Junde SONG

    2009-01-01

    The mode of telecommunication network management is changing from "network oriented" to "subscriber oriented". Aimed at enhancing subscribers'feeling, proactive performance monitoring (PPM) can enable a fast fault correction by detecting anomalies designating performance degradation. In this paper, a novel anomaly detection approach is the proposed taking advantage of time series prediction and the associated confidence interval based on multiplicative autoregressive integrated moving average (ARIMA). Furthermore, under the assumption that the training residual is a white noise process following a normal distribution, the associated confidence interval of prediction can be figured out under any given confidence degree 1-α by constructing random variables satisfying t distribution. Experimental results verify the method's effectiveness.

  1. Network technologies for O-band quantum telecommunications

    Science.gov (United States)

    Hall, Matthew A.

    We have developed and characterized the preliminary network components necessary to realize practical quantum telecommunications in the 1310-nm O-band of the existing fiber optic infrastructure. Quantum network components available, at classical-telecommunicationsspeed, in the O-band would allow single-photon-level quantum data to be multiplexed with the bright 1550-nm C-band data that the telecommunications infrastructure already supports, therefore enabling quantum information---be it for quantum computing, cryptography, games or other purposes---to be easily distributed to remote parties. Two necessary network components are presented: a high-quality source of O-band entangled photon pairs and a switch capable of routing single photons while preserving the entanglement between the photon and its partner. The pairs are created in standard optical fiber, allowing for near-lossless coupling to the existing telecommunications infrastructure. The method used is also scalable, both in creating future identical sources and operating at much higher repetition rates. Such higher rates will ensure that a meaningful number of entangled photon pairs survive distribution, which is inherently lossy (though fiber optics minimize this loss over long distances). The other component required to establish a network more advanced than a point-to-point link is a single-photon switch. In order to successfully implement such a switch for the quantum data of interest, the design must be able to switch single-photon level signals with very low loss and near unity probability of success. It is capable of operating at network speeds while preserving the photon's quantum state.

  2. Optimisation of radio transmitter locations in mobile telecommunications networks

    Directory of Open Access Journals (Sweden)

    Schmidt-Dumont, Thorsten

    2016-08-01

    Full Text Available Multiple factors have to be taken into account when mobile telecommunication network providers make decisions about radio transmitter placement. Generally, area coverage and the average signal level provided are of prime importance in these decisions. These criteria give rise to a bi-objective problem of facility location, with the goal of achieving an acceptable trade-off between maximising the total area coverage and maximising the average signal level provided to the demand region by a network of radio transmitters. This paper establishes a mathematical modelling framework, based on these two placement criteria, for evaluating the effectiveness of a given set of radio transmitter locations. In the framework, coverage is measured according to the degree of obstruction of the so-called ‘Fresnel zone’ that is formed between handset and base station, while signal strength is modelled taking radio wave propagation loss into account. This framework is used to formulate a novel bi-objective facility location model that may form the basis for decision support aimed at identifying high-quality transmitter location trade-off solutions for mobile telecommunication network providers. But it may also find application in various other contexts (such as radar, watchtower, or surveillance camera placement optimisation.

  3. Comparison of VDL Modes in the Aeronautical Telecommunications Network

    Science.gov (United States)

    Bretmersky, Steven; Konangi, Vijay K.; Kerczewski, Robert J.

    2002-01-01

    VHF Digital Link (VDL) has been identified as a method of communication between aircraft and ground stations in the Aeronautical Telecommunications Network (ATN). Three different modes of VDL have been suggested for implementation. Simulations were conducted to compare the data transfer capabilities of VDL Modes 2, 3, and 4. These simulations focus on up to 50 aircraft communicating with a single VDL ground station. The data traffic is generated by the standard File Transfer Protocol (FTP) and Hyper Text Transfer Protocol (HTTP) applications in the aircraft. Comparisons of the modes are based on the number of files and pages transferred and the response time.

  4. A Model-Driven Approach for Telecommunications Network Services Definition

    Science.gov (United States)

    Chiprianov, Vanea; Kermarrec, Yvon; Alff, Patrick D.

    Present day Telecommunications market imposes a short concept-to-market time for service providers. To reduce it, we propose a computer-aided, model-driven, service-specific tool, with support for collaborative work and for checking properties on models. We started by defining a prototype of the Meta-model (MM) of the service domain. Using this prototype, we defined a simple graphical modeling language specific for service designers. We are currently enlarging the MM of the domain using model transformations from Network Abstractions Layers (NALs). In the future, we will investigate approaches to ensure the support for collaborative work and for checking properties on models.

  5. Automation in Developing Technical Documentation of Telecommunication Networks

    Directory of Open Access Journals (Sweden)

    Slavko Šarić

    2004-09-01

    Full Text Available During the last decade of the 20th century, intensive developmentof telecommunication infrastructure set high requirementsregarding technical documentation that started to haveproblems in following the changes in the network. In the lastseveral years HT made a great shift regarding automation andpresentation of technical documentation, that is introductionof GIS (Geographic Information System, as precondition forthe introduction of DIS (Documentation Information System,thus realising the necessary preconditions to use the gatheredand organised spatial and atllibute data, for higher quality ofanalysis, processing and repair of interference in the telecommunicationnetwork The aim of this paper is to inform aboutthe segments and computer programs used for the developmentof technical documentation.

  6. Optical ground wire for Hydro-Quebec`s telecommunication network

    Energy Technology Data Exchange (ETDEWEB)

    Ghannoum, E.; Chouteau, J.P.; Miron, M.; Yaacoub, S. [Hydro-Quebec, Montreal, Quebec (Canada); Yoshida, K.

    1995-10-01

    An extensive telecommunication network of 6,000 km of Optical Ground Wire (OPGW) is currently planned by Hydro-Quebec for progressive installation from 1992 to 2004. By 1994, about 1,600 km of OPGW have already been purchased and installed mostly on new 735 kV lines. This document provides information relative to the OPGW selection, characteristics, design, fabrication, and testing. Other sections are devoted to the installation experience, description of current and future R and D OPGW projects, and Authors` biography.

  7. Decomposition method for zonal resource allocation problems in telecommunication networks

    Science.gov (United States)

    Konnov, I. V.; Kashuba, A. Yu

    2016-11-01

    We consider problems of optimal resource allocation in telecommunication networks. We first give an optimization formulation for the case where the network manager aims to distribute some homogeneous resource (bandwidth) among users of one region with quadratic charge and fee functions and present simple and efficient solution methods. Next, we consider a more general problem for a provider of a wireless communication network divided into zones (clusters) with common capacity constraints. We obtain a convex quadratic optimization problem involving capacity and balance constraints. By using the dual Lagrangian method with respect to the capacity constraint, we suggest to reduce the initial problem to a single-dimensional optimization problem, but calculation of the cost function value leads to independent solution of zonal problems, which coincide with the above single region problem. Some results of computational experiments confirm the applicability of the new methods.

  8. Test using communication satellite for security telecommunication network

    Energy Technology Data Exchange (ETDEWEB)

    Kimura, M.

    1988-01-01

    The authors confirmed by their experiment results that the satellite communication could be practically used for remote monitoring and control in gas distribution systems and data communication not only in emergency but also as the reinforced means of communication network. This report deals with the general description of the security communication network, our experiment of satellite operating system, the results and further plan for the practical application. Their company has started the test on the utilization of a communication satellite (CS-2 Japanese domestic communication satellite) since July, 1984, for the purpose of securing the telecommunication network in case of disaster and applying the satellite communications to data communication suitable for the information age, as for a gas utility industry.

  9. Ethernet Time Transfer through a U.S. Commercial Optical Telecommunications Network

    Science.gov (United States)

    2014-12-01

    Ethernet Time Transfer through a U.S. Commercial Optical Telecommunications Network M. Weiss, NIST Time and Frequency Division, mweiss... telecommunications and data networks through precision synchronization.” Marc founded and has led WSTS, the Workshop on Sync in Telecom Systems...signals through a telecommunication network. This experiment connects UTC(NIST) in Boulder, Colorado with UTC(USNO) at the Alternate Master Clock at

  10. Countrywide rainfall maps from a commercial cellular telecommunication network

    Science.gov (United States)

    Overeem, A.; Leijnse, H.; Uijlenhoet, R.

    2012-12-01

    Accurate rainfall observations with high spatial and temporal resolutions are needed for hydrological applications, agriculture, meteorology, and climate monitoring. However, the majority of the land surface of the earth lacks accurate rainfall information. Many countries do not have continuously operating weather radars, and have no or few rain gauges. A new development is rainfall estimation from microwave links of commercial cellular telecommunication networks. Such networks cover large parts of the land surface of the earth and have a high density, especially in urban areas. The estimation of rainfall using commercial microwave links could therefore become a valuable source of information. The data produced by microwave links is essentially a by-product of the communication between mobile telephones. Rainfall attenuates the electromagnetic signals transmitted from one telephone tower to another. By measuring the received power at one end of a microwave link as a function of time, the path-integrated attenuation due to rainfall can be calculated. Previous studies have shown that average rainfall intensities over the length of a link can be derived from the path-integrated attenuation. A dataset from a commercial microwave link network over the Netherlands is analyzed, containing data from an unprecedented number of links (1500) covering the land surface of the Netherlands (35500 km2). This dataset consists of 24 days with substantial rainfall in June - September 2011. A rainfall retrieval algorithm is presented to derive rainfall intensities from the microwave link data, which have a temporal resolution of 15 min. Rainfall maps (1 km spatial resolution) are generated from these rainfall intensities using Kriging. This algorithm is suited for real-time application, and is calibrated on a subset (12 days) of the dataset. The other 12 days in the dataset are used to validate the algorithm. Both calibration and validation are done using gauge-adjusted radar data

  11. Religious networking organizations and social justice: an ethnographic case study.

    Science.gov (United States)

    Todd, Nathan R

    2012-09-01

    The current study provides an innovative examination of how and why religious networking organizations work for social justice in their local community. Similar to a coalition or community coordinating council, religious networking organizations are formal organizations comprised of individuals from multiple religious congregations who consistently meet to organize around a common goal. Based on over a year and a half of ethnographic participation in two separate religious networking organizations focused on community betterment and social justice, this study reports on the purpose and structure of these organizations, how each used networking to create social capital, and how religion was integrated into the organizations' social justice work. Findings contribute to the growing literature on social capital, empowering community settings, and the unique role of religious settings in promoting social justice. Implications for future research and practice also are discussed.

  12. Future vision of advanced telecommunication networks on electronic utilities. Part 1. Present and subjects of utility telecommunication network; Denki jigyo ni okeru joho tsushin network no shirai vision. 1. Joho tsushin network no genjo to kadai

    Energy Technology Data Exchange (ETDEWEB)

    Sakaki, S.; Manabe, S.; Ono, K.; Kawai, Y.; Miki, Y. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1994-04-01

    It is predicted that there will be many changes in environment of electric utilities such as expansion of electric power demand, spread of distributed power sources, and changes in market structures due to deregulation. As a first step to think about future telecommunication networks which respond to these changes and adopt technical innovation of telecommunication, present conditions and problems of the current utility telecommunication network are outlined. The utility telecommunication is characterized by high reliability and existence of the information that requires strict transmission delay restriction. The following points are given as the future subjects: although most utility telecommunication networks currently consist of leased lines, they have to be changed to the switched networks for diversifying telecommunication service. It should be considered that the leased line network, which has a hierarchical structure based on a geographical extent, will have a hierarchical structure that is able to correspond to the future telecommunication service. It is better for the current individual loop shape with dual telecommunication circuits to be changed into the overall link shape. In introducing the ATM transmission to improve the path efficiency, it is a premise to secure reliability. 8 refs., 7 figs., 7 tabs.

  13. A MULTI-AGENT SYSTEM FOR MANAGING THE QUALITY OF SERVICE IN TELECOMMUNICATIONS NETWORKS

    Institute of Scientific and Technical Information of China (English)

    Pasquale DE MEO; Antonio IERA; Giorgio TERRACINA; Domenico URSINO

    2005-01-01

    In this paper we propose X-MAQoS, a novel XML-based multi-agent system for the QoS management in telecommunications networks. This system is characterized by the following features:(i) it handles a user profile and exploits it jointly with suitable network resource management techniques to maximize user satisfaction; (ii) it is capable of operating in a large variety of telecommunications networks; (iii) it is semi-automatic; (iv) it exploits XML for guaranteeing a light,versatile and standard mechanism for information representation, storing and exchange. In this paper the basic features of the system are discussed in details. Furthermore, the main results of a performance evaluation study in UMTS environment, aiming at comparing X-MAQoS with alternative agent-based approaches for handling user access to telecommunications networks, are reported.

  14. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Call interception additional network feature

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Call interception additional network feature

  15. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Path replacement additional network feature

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Path replacement additional network feature

  16. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call interception additional network feature

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call interception additional network feature

  17. Determination of Test Sequence for Intrusive Measurement of VTQoS in Environment Offixed Telecommunication Network

    Directory of Open Access Journals (Sweden)

    Peter Pocta

    2006-01-01

    Full Text Available This paper describes simulations of test sequences transmission for intrusive measurement of VTQoS inenvironment of fixed telecommunication network. The aim of simulations was a detection on the influence of this environment on the quality of transmission sequences. Evaluation the generated sequences was based on the calculation of mean square measure and correlation coefficient. These measures were used as a criterion for suitable test sequences selection. Reconsideration of a convenience of the given test sequence, which is composed from simple signals, on intrusive measurement of VTQoS in the environment of fixed telecommunication networks is the aim of this paper.

  18. Long-distance remote characterization of ultrastable lasers via commercial telecommunication fiber network

    CERN Document Server

    Pape, Andre; Friebe, Jan; Riedmann, Matthias; Wübbena, Temmo; Rasel, Ernst-Maria; Predehl, Katharina; Lipphardt, Burghard; Schnatz, Harald; Grosche, Gesine

    2009-01-01

    We demonstrate a fully optical, remote characterization of independent ultrastable lasers separated by a geographical distance of more than 50 km via a 73 km long phase-stabilized fiber in a commercial telecommunication network. The phase-coherent comparison shows a fractional frequency instability between the independent ultrastable laser systems of s_y = 4E-15 for averaging times > 2 s; the remote analog transfer beat note shows a linewidth of 1 Hz. This demonstrates the potential of long-distance remote comparisons of ultrastable optical frequencies using commercial telecommunication fiber networks.

  19. Security management of next generation telecommunications networks and services

    CERN Document Server

    Jacobs, Stuart

    2014-01-01

    This book will cover network management security issues and currently available security mechanisms by discussing how network architectures have evolved into the contemporary NGNs which support converged services (voice, video, TV, interactive information exchange, and classic data communications). It will also analyze existing security standards and their applicability to securing network management. This book will review 21st century security concepts of authentication, authorization, confidentiality, integrity, nonrepudiation, vulnerabilities, threats, risks, and effective approaches to enc

  20. The impact of capacity growth in national telecommunications networks.

    Science.gov (United States)

    Lord, Andrew; Soppera, Andrea; Jacquet, Arnaud

    2016-03-06

    This paper discusses both UK-based and global Internet data bandwidth growth, beginning with historical data for the BT network. We examine the time variations in consumer behaviour and how this is statistically aggregated into larger traffic loads on national core fibre communications networks. The random nature of consumer Internet behaviour, where very few consumers require maximum bandwidth simultaneously, provides the opportunity for a significant statistical gain. The paper looks at predictions for how this growth might continue over the next 10-20 years, giving estimates for the amount of bandwidth that networks should support in the future. The paper then explains how national networks are designed to accommodate these traffic levels, and the various network roles, including access, metro and core, are described. The physical layer network is put into the context of how the packet and service layers are designed and the applications and location of content are also included in an overall network overview. The specific role of content servers in alleviating core network traffic loads is highlighted. The status of the relevant transmission technologies in the access, metro and core is given, showing that these technologies, with adequate research, should be sufficient to provide bandwidth for consumers in the next 10-20 years.

  1. Reference model of future ubiquitous convergent network and context-aware telecommunication service platform

    Institute of Scientific and Technical Information of China (English)

    QIAO Xiu-quan; LI Xiao-feng; LIANG Shou-qing

    2006-01-01

    A reference model for future ubiquitous convergent network is analyzed. To provide user-centric, intelligent,personalized service, this article presents a context-aware telecommunication service platform (CaTSP) to adapt to dynamically changing context. This article focuses on the new design method of context-aware telecommunication service platform and its architecture. Through the use of model-driven architecture (MDA) and semantic web technologies, CaTSP can enable context reasoning and service personalization adaption.This article explores a new approach for service intelligence,personalization, and adaptability in the semantic web service computing era.

  2. Study of the ionizing radiation effects on the swedish telecommunications network. Studie av telekommunikationernas talighet mot joniserande stralning

    Energy Technology Data Exchange (ETDEWEB)

    Goeransson, G.; Liljegren, T.

    1992-11-01

    The aim of the study is to form a basis for decisions on possible protective measures concerning the ionizing radiation effects on the Swedish telecommunications from nuclear weapon explosions outside Sweden. The report contains a brief survey of analysis and the experimental investigations of the ionizing radiation effects on optical fibers, repeaters and microwave radio-link equipments. It also deals with the Swedish Telecommunication Network buildings and their ionizing radiation protection as well as with some specially selected telecommunication objects.

  3. Pb-free production of telecommunication network equipment: Technological and logistical challenges

    Energy Technology Data Exchange (ETDEWEB)

    Michel, H.J. [Siemens AG, ICN M and L TDC CE MC, Bruchsal (Germany)

    2004-07-01

    Legislation in Europe and China will ban the use of SnPb solder in electronic devices by July 2006. Even though there will be an exemption for telecommunication network infrastructure equipment, component market and supply chain issues will nevertheless affect such high-tech products, and strongly influence logistics during the transition to ''Pb-free.'' The Siemens group ''Information and Communication Networks'' (ICN) produces high-technology modules for telecommunication networks. To prepare for cost-effective conversion to lead-free within ICN, an interdisciplinary team was formed. The presentation highlights critical issues and shows how the team is proceeding to confront them. (orig.)

  4. AN INSTITUTIONAL AND NETWORK PERSPECTIVE OF ORGANISATIONAL LEGITIMACY: EMPIRICAL EVIDENCE FROM CHINA′S TELECOMMUNICATIONS MARKET

    Directory of Open Access Journals (Sweden)

    Brian Low

    2010-07-01

    Full Text Available This perspective paper combines institutional and industrial network theory to develop a framework for analysing organisational legitimacy. The main subject, Nokia China, is found to be sensitive to network-legitimating initiatives, with consequences that accommodate multiple, conflicting stakeholders′ interests in China′s politically sensitive and protective telecommunications market. This paper offers new insights into institutional isomorphism that is manifested empirically as incremental conformity to regulative processes, institutional norms and cognitive knowledge and meanings within the environment, thereby extending commonly held views of institutional theory to include organisational legitimacy in industrial networks.

  5. Policy Creation Model for Policy-Based Management in Telecommunications Networks

    CERN Document Server

    Astudillo, Carlos A; Calderón, Oscar J

    2011-01-01

    Policy-based management (PBM) is being used as technological solution on the managing and controlling complex networks and systems. One of the most important issues involved in the life-cycle of PBM is the policies creation because the future decisions made by the management system depend on this, and therefore, the network behavior. In this paper we present a novel model for creating management policies in telecommunications networks. We propose a model which includes a Policy Creation Process, Actors, Policy Abstraction Levels and a Procedure for Creating Policies. An implementation of the proposed model over the Technology Division at University of Cauca is included.

  6. MOVING TOWARD SYNCHRONOUS OPTICAL NETWORK STRATEGIES FOR EFFICIENT TELECOMMUNICATIONS TRANSPORT WITH INCREASED CONFIGURATION FLEXIBILITY AND BANDWIDTH AVAILABILITY

    Directory of Open Access Journals (Sweden)

    Dr.S.S.Riaz Ahamed

    2010-07-01

    Full Text Available Optical networks are high-capacity telecommunications networks based on optical technologies and components that provide routing, grooming, and restoration at the wavelength level as well as wavelength-based services. As networks face increasing bandwidth demand and diminishing fiber availability, network providers are moving towards a crucial milestone in network evolution: the optical network. Optical networks, based on the emergence of the optical layer in transport networks, provide higher capacity and reduced costs for new applications such as the Internet, video and multimedia interaction, and advanced digital services. Synchronous optical network (SONET is a standard for optical telecommunications transport. The increased configuration flexibility and bandwidth availability of SONET provides significant advantages over the older telecommunications system.

  7. Optical disk toxic information online system at Sumitomo Chemical Co. through telecommunication network in Japan

    Science.gov (United States)

    Kishida, Fumio; Omodaka, Hisakata; Ishihara, Koichiro; Yamada, Yoshinori; Kato, Hiromi

    Toxicity data about several hundred chemicals, handled and commercialized by Sumitomo Chemical Co., have been collected and estimated. These data are stored in an optical disk filing system "sanfile 8500D". Because the system is mounted with a keyword input panel "Word selecter", information retrieval system is simplified but precised. Online system through telecommunication network is extended between Sumitomo Chemical's works, laboratories, and others. Image informations are mailed from installed facsimili in sanfile 8500D directly.

  8. Protection using telecommunications

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    Deregulation in both the telecommunication and electric power industry, together with new telecommunication network technologies and advances in numerical protection, has resulted in the need to reconsider traditional methods of delivering tele-protection schemes and their associated bearer services. Fibre-optic technology is commonly deployed in new telecommunication networks for inter-station communication and utility-owned and public telecommunication networks from third parties are available for protection purposes. (author)

  9. Frequency and time transfer for metrology and beyond using telecommunication network fibres

    CERN Document Server

    Lopez, Olivier; Jiang, Haifeng; Haboucha, Adil; Bercy, Anthony; Stefani, Fabio; Chanteau, Bruno; Kanj, Amale; Rovera, Daniele; Achkar, Joseph; Chardonnet, Christian; Pottie, Paul-Eric; Amy-Klein, Anne; Santarelli, Giorgio

    2015-01-01

    The distribution and the comparison of an ultra-stable optical frequency and accurate time using optical fibres have been greatly improved in the last ten years. The frequency stability and accuracy of optical links surpass well-established methods using the global navigation satellite system and geostationary satellites. In this paper, we present a review of the methods and the results obtained. We show that public telecommunication network carrying Internet data can be used to compare and distribute ultra-stable metrological signals over long distances. This novel technique paves the way for the deployment of a national and continental ultra-stable metrological optical network.

  10. Optimization of the telecommunication network of a gas utility; Optimisation d'un reseau de telecommunications d'un operateur gazier

    Energy Technology Data Exchange (ETDEWEB)

    Vinas, Ch.; Abadie, J. [GSO, Gaz Sud-Ouest, 64 - Pau (France)

    2001-07-01

    The information system of Gaz du Sud-Ouest (GSO) utility, which includes the real time systems for the exploitation of the gas transport and distribution system and its management, is based on heterogenous and separated telecommunication infrastructures. A project has been started which aims at optimizing the architecture of this communication network taking into consideration the technical aspects but also the security and costs constraints. (J.S.)

  11. Science-Related Telecommunication.

    Science.gov (United States)

    Anderson, Norm

    1993-01-01

    A physics teacher at rural Cedar Falls High School (Iowa) describes how teacher telecommunication networks provided ongoing support following summer teacher workshops, his inability to get fellow teachers engaged in telecommunication, and the benefits of a telecommunication network to rural teachers. (SV)

  12. Application of the ETOM framework for defining processes in the telecommunication systems management network of the Serbian Army

    Directory of Open Access Journals (Sweden)

    Vladimir B. Suša

    2013-10-01

    Full Text Available This paper deals with management system requirements in telecommunications. A TMN (Telecommunication Management Network is necessary to be well designed and constantly upgraded. The  ETOM (Enhanced Telecommunication Operation Map framework, defined by the ITU-T Recommendation M.3050, is used to describe various processes that occur in the network for monitoring and control of military telecommunications systems. Their definition is an essential precondition for introducing management applications that would manage all of the processes in their end-to-end structure. Telecommunication networks are categorized in  accordance withg their functions. A set of relevant network processes important for supervision and management is explained for each described subsystem. This defining represents a prerequisite for the management application configuration which aims to automate management functions and services. eTOM frame and its implementation in telecommunication management networks ETOM is defined as a telecommunication conceptual frame which includes all the processes that exist in a telecommunication network. It does not represent a telecommunication model, but gives a basic frame for all the processes to be included within. It ranges throughout three basic areas: operation processes, planning and development processes and production management. ETOM supports two different process grouping perspectives: horizontal and vertical. The aim of this kind of grouping is to provide the complete overview in all the processes a telecommunication management network should include. Horizontal grouping includes functional processes within the same managed system. Vertical grouping includes all the processes within a TMN. Overlapped horizontal and vertical group constellations enable a connected matrix structure of the eTOM frame. Operational processes within a TMN can be divided into a few categories: user-network interaction, services management and

  13. Collocational Networks Supporting Strategic Planning of Brand Communication: Analysis of Quarterly Reports of Telecommunication Companies

    Directory of Open Access Journals (Sweden)

    Pentti Järvi

    2004-10-01

    Full Text Available This study addresses analysing quarterly reports from a brandtheoretical viewpoint. The study addresses the issue through a method which introduces both a quantitative tool based on linguistic theory and qualitative decisions of the researchers. The research objects of this study are two quarterly reports each of three telecommunications companies: Ericsson, Motorola and Nokia. The method used is a collocational network. The analyses show that there are differences in communication and message strategies among investigated companies and also changes during a quite short period in each company

  14. Cascaded multiplexed optical link on a telecommunication network for frequency dissemination.

    Science.gov (United States)

    Lopez, Olivier; Haboucha, Adil; Kéfélian, Fabien; Jiang, Haifeng; Chanteau, Bruno; Roncin, Vincent; Chardonnet, Christian; Amy-Klein, Anne; Santarelli, Giorgio

    2010-08-01

    We demonstrate a cascaded optical link for ultrastable frequency dissemination comprised of two compensated links of 150 km and a repeater station. Each link includes 114 km of Internet fiber simultaneously carrying data traffic through a dense wavelength division multiplexing technology, and passes through two routing centers of the telecommunication network. The optical reference signal is inserted in and extracted from the communication network using bidirectional optical add-drop multiplexers. The repeater station operates autonomously ensuring noise compensation on the two links and the ultra-stable signal optical regeneration. The compensated link shows a fractional frequency instability of 3 x 10(-15) at one second measurement time and 5 x 10(-20) at 20 hours. This work paves the way to a wide dissemination of ultra-stable optical clock signals between distant laboratories via the Internet network.

  15. Cascaded multiplexed optical link on a telecommunication network for frequency dissemination

    CERN Document Server

    Lopez, Olivier; Kéfélian, Fabien; Jiang, Haifeng; Chanteau, Bruno; Roncin, Vincent; Chardonnet, Christian; Amy-Klein, Anne; Santarelli, Georgio

    2010-01-01

    We demonstrate a cascaded optical link for ultrastable frequency dissemination comprised of two compensated links of 150 km and a repeater station. Each link includes 114 km of Internet fiber simultaneously carrying data traffic through a dense wavelength division multiplexing technology, and passes through two routing centers of the telecommunication network. The optical reference signal is inserted in and extracted from the communication network using bidirectional optical add-drop multiplexers. The repeater station operates autonomously ensuring noise compensation on the two links and the ultra-stable signal optical regeneration. The compensated link shows a fractional frequency instability of 3 \\times 10-15 at one second measurement time and 5 \\times 10-20 at 20 hours. This work paves the way to a wide dissemination of ultra-stable optical clock signals between distant laboratories via the Internet network.

  16. Framework for Development of Advanced Telecommunication Services in Current and Future Converged Networks

    DEFF Research Database (Denmark)

    Soler-Lucas, José

    2006-01-01

    This thesis presents different experiences related to architectures and mechanisms for deployment of telephony services, understood as especial features complementing the basic voice service. The context for these experiences is the transition of telecommunication (telephony) networks from circuit...... switched based systems towards packet based ones. Service deployment in a specific hybrid PSTN/IN/VoIP architecture is presented as well as a description of the enabling technologies. Discussion on service implementation examples is provided. The convenience of network neutral service invocation...... is introduced and how this has been achieved, by means of Web Services-based mechanisms. A single-request / single response protocol for invocation of a specific set of services is presented and a decoupling mechanism between signalling network protocols and service logic invocation demonstrated. Services, have...

  17. Two-Way Optical Frequency Comparisons Over 100km Telecommunication Network Fibers

    CERN Document Server

    Bercy, Anthony; Lopez, Olivier; Chardonnet, Christian; Pottie, Paul-Eric; Amy-Klein, Anne

    2014-01-01

    By using two-way frequency transfer, we demonstrate ultra-high resolution comparison of optical frequencies over a telecommunication fiber link of 100 km operating simultaneously digital data transfer. We first propose and experiment a bi-directional scheme using a single fiber. We show that the relative stability at 1 s integration time is 7 10^18 and scales down to 5 10^21. The same level of performance is reached when an optical link is implemented with an active compensation of the fiber noise. We also implement a real-time two-way frequency comparison over a uni-directional telecommunication network using a pair of parallel fibers. The relative frequency stability is 10^15 at 1 s integration time and reaches 2 10^17 at 40 000 s. The fractional uncertainty of the frequency comparisons was evaluated for the best case to 2 10^20. These results open the way to accurate and high resolution frequency comparison of optical clocks over intercontinental fiber networks.

  18. Achieving QoS for Aeronautical Telecommunication Networks over Differentiated Services

    Science.gov (United States)

    Bai, Haowei; Atiquzzaman, Mohammed; Ivancic, William

    2001-01-01

    Aeronautical Telecommunication Network (ATN) has been developed by the International Civil Aviation Organization to integrate Air-Ground and Ground-Ground data communication for aeronautical applications into a single network serving Air Traffic Control and Aeronautical Operational Communications. To carry time critical information required for aeronautical applications, ATN provides different Quality of Services (QoS) to applications. ATN has therefore, been designed as a standalone network which implies building an expensive separate network for ATN. However, the cost of operating ATN can be reduced if it can be run over a public network such as the Internet. Although the current Internet does not provide QoS, the next generation Internet is expected to provide QoS to applications. The objective of this paper is to investigate the possibility of providing QoS to ATN applications when it is run over the next generation Internet. Differentiated Services (DiffServ), one of the protocols proposed for the next generation Internet, will allow network service providers to offer different QoS to customers. Our results show that it is possible to provide QoS to ATN applications when they run over a DiffServ backbone.

  19. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Message waiting indication supplementary service

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Message waiting indication supplementary service

  20. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Call priority interruption and call priority interruption protection supplementary services

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Call priority interruption and call priority interruption protection supplementary services

  1. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Call priority interruption and call priority interruption protection supplementary services

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Call priority interruption and call priority interruption protection supplementary services

  2. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Wireless terminal authentication supplementary services

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Wireless terminal authentication supplementary services

  3. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call transfer supplementary service

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call transfer supplementary service

  4. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Recall supplementary service

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Recall supplementary service

  5. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Name identification supplementary services

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Name identification supplementary services

  6. Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Single step call transfer supplementary service

    CERN Document Server

    International Organization for Standardization. Geneva

    2003-01-01

    Information technology - Telecommunications and information exchange between systems - Private integrated services network - Inter-exchange signalling protocol - Single step call transfer supplementary service

  7. An integrated service digital network (ISDN)-based international telecommunication between Samsung Medical Center and Hokkaido University using telecommunication helped radiotherapy planning and information system (THERAPIS).

    Science.gov (United States)

    Huh, S J; Shirato, H; Hashimoto, S; Shimizu, S; Kim, D Y; Ahn, Y C; Choi, D; Miyasaka, K; Mizuno, J

    2000-07-01

    This study introduces the integrated service digital network (ISDN)-based international teleradiotherapy system (THERAPIS) in radiation oncology between hospitals in Seoul, South Korea and in Sapporo, Japan. THERAPIS has the following functions: (1) exchange of patient's image data, (2) real-time teleconference, and (3) communication of the treatment planning, dose calculation and distribution, and of portal verification images between the remote hospitals. Our preliminary results of applications on eight patients demonstrated that the international telecommunication using THERAPIS was clinically useful and satisfactory with sufficient bandwidth for the transfer of patient data for clinical use in radiation oncology.

  8. Location-allocation models and new solution methodologies in telecommunication networks

    Science.gov (United States)

    Dinu, S.; Ciucur, V.

    2016-08-01

    When designing a telecommunications network topology, three types of interdependent decisions are combined: location, allocation and routing, which are expressed by the following design considerations: how many interconnection devices - consolidation points/concentrators should be used and where should they be located; how to allocate terminal nodes to concentrators; how should the voice, video or data traffic be routed and what transmission links (capacitated or not) should be built into the network. Including these three components of the decision into a single model generates a problem whose complexity makes it difficult to solve. A first method to address the overall problem is the sequential one, whereby the first step deals with the location-allocation problem and based on this solution the subsequent sub-problem (routing the network traffic) shall be solved. The issue of location and allocation in a telecommunications network, called "The capacitated concentrator location- allocation - CCLA problem" is based on one of the general location models on a network in which clients/demand nodes are the terminals and facilities are the concentrators. Like in a location model, each client node has a demand traffic, which must be served, and the facilities can serve these demands within their capacity limit. In this study, the CCLA problem is modeled as a single-source capacitated location-allocation model whose optimization objective is to determine the minimum network cost consisting of fixed costs for establishing the locations of concentrators, costs for operating concentrators and costs for allocating terminals to concentrators. The problem is known as a difficult combinatorial optimization problem for which powerful algorithms are required. Our approach proposes a Fuzzy Genetic Algorithm combined with a local search procedure to calculate the optimal values of the location and allocation variables. To confirm the efficiency of the proposed algorithm with respect

  9. A Feedback Control Mechanism of QoS Management for IP Telecommunication Network

    Institute of Scientific and Technical Information of China (English)

    CUI Yi-dong; JIAO Li; LIN Yu; WANG Wen-dong

    2005-01-01

    In this paper a feedback control mechanism of Quality of Service (QoS) management is proposed. By measuring and monitoring the operational information of the IP telecommunication network, the feedback control-loops tune the network according to the trends of the traffic characteristics in order to gain a favorable network status. With theoretical analysis, it is concluded that the QoS of an arbitrary k-class flow can be guaranteed when the capacity of the k-class traffic is not fully filled. Thus by distributing the bandwidth of the egress bottleneck link among the ingress links, the congestion can be relieved. Moreover, the capacity of each traffic class that shares the same link affects one another. Therefore, the feedback control also aims at adjusting the capacity proportion among the traffic classes. In order to realize the goals, three feedback control-loops are designed in the QoS management system. A CORBA-based implementation is deployed on the testbed.

  10. To The Question Of Information Security During Rendering State And Municipal Services Through The Global Information And Telecommunication Network Internet

    Directory of Open Access Journals (Sweden)

    Alexander A. Galushkin

    2015-01-01

    Full Text Available In the present article author analyzes some aspects of providing the state and municipal services by means of the global information and telecommunication network Internet. Author proves the need of ensuring information security and counteraction of cyberespionage, gives own offers.

  11. Towards operational rainfall monitoring with microwave links from cellular telecommunication networks

    Science.gov (United States)

    Overeem, Aart; Leijnse, Hidde; Uijlenhoet, Remko

    2017-04-01

    The basic principle of rainfall estimation using microwave links is as follows. Rainfall attenuates the electromagnetic signals transmitted from one telephone tower to another. By measuring the received power at one end of a microwave link as a function of time, the path-integrated attenuation due to rainfall can be calculated, which can be converted to average rainfall intensities over the length of a link. Microwave links from cellular communication networks have been proposed as a promising new rainfall measurement technique since one decade. They are particularly interesting for those countries where few surface rainfall observations are available. Yet too date no operational (real-time) link-based rainfall products are available. To advance the process towards operational application and upscaling of this technique, long time series should be analyzed for different networks and climates. Here the potential for long-term large-scale operational rainfall monitoring is demonstrated by utilizing a 2.5-year data set from a cellular communication network. The data set consists of roughly 2,000 links covering the land surface of the Netherlands (35,500 square kilometers). The quality of link rainfall maps is thoroughly quantified by an extensive validation against independent gauge-adjusted radar rainfall maps for, among others, different seasons and extremes. One of the goals is to quantify whether the cellular telecommunication network can yield rainfall maps of comparable quality as those based on automatic rain gauge data (with a density of 1 gauge per 1000 square kilometers). Developing countries will usually have rain gauge networks with a lower density (and little or no weather radars). This helps to assess the possibly added value of link-based rainfall estimates with respect to those from existing rain gauge networks. Moreover, this shows the possibly added value of link rainfall estimates for adjustment of radar rainfall images. The results further confirm

  12. Telecommunications is Dead, Long Live Networking : The Effect of the Information Revolution on the Telecom Industry

    OpenAIRE

    Bond, James

    1997-01-01

    The author looks at how the drivers of the information revolution are transforming the structure of the telecommunications industry. The end of natural monopoly, the breakdown of the old pricing mechanisms, the increasing competition from new operators and new products, and the globalization of the industry are forcing radical change. This spells trouble for incumbent telecommunications op...

  13. Earth-Mars Telecommunications and Information Management System (TIMS): Antenna Visibility Determination, Network Simulation, and Management Models

    Science.gov (United States)

    Odubiyi, Jide; Kocur, David; Pino, Nino; Chu, Don

    1996-01-01

    This report presents the results of our research on Earth-Mars Telecommunications and Information Management System (TIMS) network modeling and unattended network operations. The primary focus of our research is to investigate the feasibility of the TIMS architecture, which links the Earth-based Mars Operations Control Center, Science Data Processing Facility, Mars Network Management Center, and the Deep Space Network of antennae to the relay satellites and other communication network elements based in the Mars region. The investigation was enhanced by developing Build 3 of the TIMS network modeling and simulation model. The results of several 'what-if' scenarios are reported along with reports on upgraded antenna visibility determination software and unattended network management prototype.

  14. Secure real-time wireless video streaming in the aeronautical telecommunications network

    Science.gov (United States)

    Czernik, Pawel; Olszyna, Jakub

    2010-09-01

    As Air Traffic Control Systems move from a voice only environment to one in which clearances are issued via data link, there is a risk that an unauthorized entity may attempt to masquerade as either the pilot or controller. In order to protect against this and related attacks, air-ground communications must be secured. The challenge is to add security in an environment in which bandwidth is limited. The Aeronautical Telecommunications Network (ATN) is an enabling digital network communications technology that addresses capacity and efficiency issues associated with current aeronautical voice communication systems. Equally important, the ATN facilitates migration to free flight, where direct computer-to-computer communication will automate air traffic management, minimize controller and pilot workload, and improve overall aircraft routing efficiency. Protecting ATN communications is critical since safety-of-flight is seriously affected if an unauthorized entity, a hacker for example, is able to penetrate an otherwise reliable communications system and accidentally or maliciously introduce erroneous information that jeopardizes the overall safety and integrity of a given airspace. However, an ATN security implementation must address the challenges associated with aircraft mobility, limited bandwidth communication channels, and uninterrupted operation across organizational and geopolitical boundaries. This paper provides a brief overview of the ATN, the ATN security concept, and begins a basic introduction to the relevant security concepts of security threats, security services and security mechanisms. Security mechanisms are further examined by presenting the fundamental building blocks of symmetric encipherment, asymmetric encipherment, and hash functions. The second part of this paper presents the project of cryptographiclly secure wireless communication between Unmanned Aerial Vehicles (UAV) and the ground station in the ATM system, based on the ARM9 processor

  15. Transmission qualities of natural lines of mine telecommunication network in the aspect of multiplexing

    Energy Technology Data Exchange (ETDEWEB)

    Penkala, E.

    1982-10-01

    The parameters of natural lines of mine telecommunication cables which are essential for multiplexing are discussed. It is shown that a method of time multiplexing permits better use to be made of line capacity than does frequency multiplexing.

  16. Using heuristic algorithms for capacity leasing and task allocation issues in telecommunication networks under fuzzy quality of service constraints

    Science.gov (United States)

    Huseyin Turan, Hasan; Kasap, Nihat; Savran, Huseyin

    2014-03-01

    Nowadays, every firm uses telecommunication networks in different amounts and ways in order to complete their daily operations. In this article, we investigate an optimisation problem that a firm faces when acquiring network capacity from a market in which there exist several network providers offering different pricing and quality of service (QoS) schemes. The QoS level guaranteed by network providers and the minimum quality level of service, which is needed for accomplishing the operations are denoted as fuzzy numbers in order to handle the non-deterministic nature of the telecommunication network environment. Interestingly, the mathematical formulation of the aforementioned problem leads to the special case of a well-known two-dimensional bin packing problem, which is famous for its computational complexity. We propose two different heuristic solution procedures that have the capability of solving the resulting nonlinear mixed integer programming model with fuzzy constraints. In conclusion, the efficiency of each algorithm is tested in several test instances to demonstrate the applicability of the methodology.

  17. Methodologies for assessing the use-phase power consumption and greenhouse gas emissions of telecommunications network services.

    Science.gov (United States)

    Chan, Chien A; Gygax, André F; Wong, Elaine; Leckie, Christopher A; Nirmalathas, Ampalavanapillai; Kilper, Daniel C

    2013-01-02

    Internet traffic has grown rapidly in recent years and is expected to continue to expand significantly over the next decade. Consequently, the resulting greenhouse gas (GHG) emissions of telecommunications service-supporting infrastructures have become an important issue. In this study, we develop a set of models for assessing the use-phase power consumption and carbon dioxide emissions of telecom network services to help telecom providers gain a better understanding of the GHG emissions associated with the energy required for their networks and services. Due to the fact that measuring the power consumption and traffic in a telecom network is a challenging task, these models utilize different granularities of available network information. As the granularity of the network measurement information decreases, the corresponding models have the potential to produce larger estimation errors. Therefore, we examine the accuracy of these models under various network scenarios using two approaches: (i) a sensitivity analysis through simulations and (ii) a case study of a deployed network. Both approaches show that the accuracy of the models depends on the network size, the total amount of network service traffic (i.e., for the service under assessment), and the number of network nodes used to process the service.

  18. Key User Extraction Based on Telecommunication Data (aka. Key Users in Social Network. How to find them?)

    CERN Document Server

    Bródka, Piotr

    2013-01-01

    The number of systems that collect vast amount of data about users rapidly grow during last few years. Many of these systems contain data not only about people characteristics but also about their relationships with other system users. From this kind of data it is possible to extract a social network that reflects the connections between system's users. Moreover, the analysis of such social network enables to investigate different characteristics of its members and their linkages. One of the types of examining such network is key users extraction. Key users are these who have the biggest impact on other network members as well as have big influence on network evolution. The obtained about these users knowledge enables to investigate and predict changes within the network. So this knowledge is very important for the people or companies who make a profit from the network like telecommunication company. The second important thing is the ability to extract these users as quick as possible, i.e. developed the algo...

  19. Medicine in long duration space exploration: the role of virtual reality and broad bandwidth telecommunications networks

    Science.gov (United States)

    Ross, M. D.

    2001-01-01

    Safety of astronauts during long-term space exploration is a priority for NASA. This paper describes efforts to produce Earth-based models for providing expert medical advice when unforeseen medical emergencies occur on spacecraft. These models are Virtual Collaborative Clinics that reach into remote sites using telecommunications and emerging stereo-imaging and sensor technologies. c 2001. Elsevier Science Ltd. All rights reserved.

  20. Effect of call-clubs to institute local network effects in mobile telecommunication and its′ implications on brand loyalty

    Directory of Open Access Journals (Sweden)

    Karunarathne E. A .C. P

    2017-03-01

    Full Text Available As a result of rapid technological advancements in the mobile telecommunication industry, many firms have set their strategies to target larger customer bases since it forecasts extensive future profit generation. Due to severe competition, while employing successful customer loyalty strategies, customer locked-in strategies are also commonly used in the telecommunication industry to retain their customers within the firm. Call-clubs benefits are one of the commonly used strategies used to create local network effects in the mobile telecommunication market place. Thus, this paper targets to provide insight on the implication of subscriber’s involvement in call-clubs on their loyalty towards service providers. A survey based quantitative approach was followed for this study and the data was gathered through a structured off-line questionnaire from randomly selected mobile users in Sri Lanka. Based on collected valid responses, analysis was carried out to answer the designed research hypotheses and structural equation modelling techniques were mainly used for statistical analysis. As per the analysis, research model shows a fairly high level of explanatory power with customer loyalty and perceived call-clubs benefits which indicate customers′ preference towards the service provider when most frequently contacting parties are using the same network. Further analysis was carried out to investigate the moderating effect on call-clubs benefits and customer loyalty relationships due to two main technological advancements; namely, Internet based voice calling facility and multiple connection access facility. Based on the analysis results recommendations were made to track the value of call-clubs strategies accordingly.

  1. Trauma histories among justice-involved youth: findings from the National Child Traumatic Stress Network

    Directory of Open Access Journals (Sweden)

    Carly B. Dierkhising

    2013-07-01

    Full Text Available Background: Up to 90% of justice-involved youth report exposure to some type of traumatic event. On average, 70% of youth meet criteria for a mental health disorder with approximately 30% of youth meeting criteria for post-traumatic stress disorder (PTSD. Justice-involved youth are also at risk for substance use and academic problems, and child welfare involvement. Yet, less is known about the details of their trauma histories, and associations among trauma details, mental health problems, and associated risk factors. Objective: This study describes detailed trauma histories, mental health problems, and associated risk factors (i.e., academic problems, substance/alcohol use, and concurrent child welfare involvement among adolescents with recent involvement in the juvenile justice system. Method: The National Child Traumatic Stress Network Core Data Set (NCTSN-CDS is used to address these aims, among which 658 adolescents report recent involvement in the juvenile justice system as indexed by being detained or under community supervision by the juvenile court. Results: Age of onset of trauma exposure was within the first 5 years of life for 62% of youth and approximately one-third of youth report exposure to multiple or co-occurring trauma types each year into adolescence. Mental health problems are prevalent with 23.6% of youth meeting criteria for PTSD, 66.1% in the clinical range for externalizing problems, and 45.5% in the clinical range for internalizing problems. Early age of onset of trauma exposure was differentially associated with mental health problems and related risk factors among males and females. Conclusions: The results indicate that justice-involved youth report high rates of trauma exposure and that this trauma typically begins early in life, is often in multiple contexts, and persists over time. Findings provide support for establishing trauma-informed juvenile justice systems that can respond to the needs of traumatized youth.

  2. Telecommunications demystified

    CERN Document Server

    Nassar, Carl R

    2001-01-01

    Carl R. Nassar, Ph.D., is professor of telecommunications at Colorado State University and director of the Research in Advanced Wireless Communications (RAWCom) laboratory there. He also consults for telecommunications firms and publishes extensively in the wireless literature.Balances a solid theoretical treatment of subjects with practical applications and examples.Covers both digital and analogue telecommunications systems, including digital modulation techniques.The CD accompanying the book includes MATLAB® tutorials that permit readers to model various telecommunications systems and an el

  3. Ultranarrow-band photon-pair source compatible with solid state quantum memories and telecommunication networks.

    Science.gov (United States)

    Fekete, Julia; Rieländer, Daniel; Cristiani, Matteo; de Riedmatten, Hugues

    2013-05-31

    We report on a source of ultranarrow-band photon pairs generated by widely nondegenerate cavity-enhanced spontaneous down-conversion. The source is designed to be compatible with Pr(3+) solid state quantum memories and telecommunication optical fibers, with signal and idler photons close to 606 nm and 1436 nm, respectively. Both photons have a spectral bandwidth around 2 MHz, matching the bandwidth of Pr(3+) doped quantum memories. This source is ideally suited for long distance quantum communication architectures involving solid state quantum memories.

  4. Double pass in acousto-optic tunable filter for telecommunication network

    Science.gov (United States)

    Issa, Hadeel; Quintard, Véronique; Pérennou, André; Sakkour, Afif

    2014-07-01

    We investigate an acousto-optic tunable filter setup for wavelength division multiplexing telecommunication applications in wideband C (100 nm around 1550 nm). Anisotropic Bragg diffraction of light in TeO2 bulk crystal is first investigated experimentally and theoretically in a quasi-collinear interaction configuration. Based on those characterizations, we propose a double-pass optical beam which allows us to improve the filter performances in terms of crosstalk and selectivity: the full width at half maximum and the sidelobe level are reduced.

  5. Integrating mitosis, toxicity, and transgene expression in a telecommunications packet-switched network model of lipoplex-mediated gene delivery.

    Science.gov (United States)

    Martin, Timothy M; Wysocki, Beata J; Beyersdorf, Jared P; Wysocki, Tadeusz A; Pannier, Angela K

    2014-08-01

    Gene delivery systems transport exogenous genetic information to cells or biological systems with the potential to directly alter endogenous gene expression and behavior with applications in functional genomics, tissue engineering, medical devices, and gene therapy. Nonviral systems offer advantages over viral systems because of their low immunogenicity, inexpensive synthesis, and easy modification but suffer from lower transfection levels. The representation of gene transfer using models offers perspective and interpretation of complex cellular mechanisms,including nonviral gene delivery where exact mechanisms are unknown. Here, we introduce a novel telecommunications model of the nonviral gene delivery process in which the delivery of the gene to a cell is synonymous with delivery of a packet of information to a destination computer within a packet-switched computer network. Such a model uses nodes and layers to simplify the complexity of modeling the transfection process and to overcome several challenges of existing models. These challenges include a limited scope and limited time frame, which often does not incorporate biological effects known to affect transfection. The telecommunication model was constructed in MATLAB to model lipoplex delivery of the gene encoding the green fluorescent protein to HeLa cells. Mitosis and toxicity events were included in the model resulting in simulation outputs of nuclear internalization and transfection efficiency that correlated with experimental data. A priori predictions based on model sensitivity analysis suggest that increasing endosomal escape and decreasing lysosomal degradation, protein degradation, and GFP-induced toxicity can improve transfection efficiency by three-fold. Application of the telecommunications model to nonviral gene delivery offers insight into the development of new gene delivery systems with therapeutically relevant transfection levels.

  6. 32 CFR 2001.50 - Telecommunications automated information systems and network security.

    Science.gov (United States)

    2010-07-01

    ... and network security. 2001.50 Section 2001.50 National Defense Other Regulations Relating to National Defense INFORMATION SECURITY OVERSIGHT OFFICE, NATIONAL ARCHIVES AND RECORDS ADMINISTRATION CLASSIFIED... network security. Each agency head shall ensure that classified information electronically...

  7. Open Source Telecommunication Companies

    Directory of Open Access Journals (Sweden)

    Peter Liu

    2007-08-01

    Full Text Available Little is known about companies whose core business is selling telecommunications products that lever open source projects. Open source telecommunications (OST companies operate in markets that are very different from typical software product markets. The telecommunications market is regulated, vertically integrated, and proprietary designs and special chips are widely used. For a telecommunications product to be useful, it must interact with both access network products and core network products. Due to specifications in Service Agreements Levels, penalties for failures of telecommunications products are very high. This article shares information that is not widely known, including a list of OST companies and the open source projects on which they depend, the size and diversity of venture capital investment in OST companies, the nature of the commercial product-open source software and company-project relationships, ways in which OST companies make money, benefits and risks of OST companies, and competition between OST companies. Analysis of this information provides insights into the ways in which companies can build business models around open source software. These findings will be of interest to entrepreneurs, top management teams of incumbent companies that sell telecommunications products, and those who care about Ontario's ability to compete globally.

  8. Telecommunications glossary of telecommunications terms

    CERN Document Server

    1997-01-01

    This glossary contains more than 5,000 technical terms and definitions that were standardized by the federal government for use by international and U.S. government telecommunications specialists. It includes international and national terms drawn from the International Telecommunication Union, the International Organization for Standardization, the TIA, ANSI, and others.

  9. FUZZY REQUIREMENT BASED STRATEGY OF QoS SERVICE FOR BROADBAND TELECOMMUNICATION NETWORKS

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    A fuzzy requirement based strategy for QoS service in broadband networks was presented. With the analysis of QoS service in ATM networks and broadband IP networks, it gave a requirement-based strategy for QoS service application with Fuzzy language evaluation principles. The requirement parameters are chosen according to the WANT/COST rule, and a fuzzy set is constructed to realize the fuzzy determinant. The simulation results show that it is useful to evaluate the QoS service in broadband networks, and to effectively simplify the access protocols and solve the billing issues in broadband networks.

  10. Demand Modelling in Telecommunications

    Directory of Open Access Journals (Sweden)

    M. Chvalina

    2009-01-01

    Full Text Available This article analyses the existing possibilities for using Standard Statistical Methods and Artificial Intelligence Methods for a short-term forecast and simulation of demand in the field of telecommunications. The most widespread methods are based on Time Series Analysis. Nowadays, approaches based on Artificial Intelligence Methods, including Neural Networks, are booming. Separate approaches will be used in the study of Demand Modelling in Telecommunications, and the results of these models will be compared with actual guaranteed values. Then we will examine the quality of Neural Network models. 

  11. Telecommunication system engineering

    CERN Document Server

    Freeman, Roger L

    2004-01-01

    From the review of the Third Edition:""A must for anyone in volved in the practical aspects of the telecommunications industry.""-CHOICE* Outlines the expertise essential to the successful operation and design of every type of telecommunications networks in use today* New edition is fully revised and expanded to present authoritative coverage of the important developments that have taken place since the previous edition was published* Includes new chapters on hot topics such as cellular radio, asynchronous transfer mode, broadband technologies, and network management

  12. Two-way optical frequency comparisons at 5 ×10-21 relative stability over 100-km telecommunication network fibers

    Science.gov (United States)

    Bercy, Anthony; Stefani, Fabio; Lopez, Olivier; Chardonnet, Christian; Pottie, Paul-Eric; Amy-Klein, Anne

    2014-12-01

    By using two-way frequency transfer, we implement a real-time frequency comparison over a uni-directional telecommunication network of 100 km using a pair of parallel fibers with simultaneous digital data transfer. The relative frequency stability is 10-15 at 1-s integration time and reaches 2 ×10-17 at 40 000 s, three orders of magnitude below the one-way fiber instability. We also demonstrate ultrahigh-resolution comparison of optical frequencies with a bidirectional scheme using a single fiber. We show that the relative stability at 1-s integration time is 7 ×10-18 and scales down to 5 ×10-21 . The same level of performance is reached when an optical link is implemented with an active compensation of the fiber noise. The fractional uncertainty of the frequency comparisons was evaluated for the best case to 2 ×10-20 . These results open the way to accurate and high-resolution frequency comparison of optical clocks over intercontinental fiber networks.

  13. Telecommunication reform in Ghana

    OpenAIRE

    Haggarty, Luke; Mary M. Shirley; Wallsten, Scott

    2003-01-01

    In 1996 Ghana privatized its incumbent telecommunications firm by selling 30 percent of Ghana Telecom to Telekom Malaysia, licensing a second network operator, and allowing multiple mobile firms to enter the market. The reforms yielded mixed results. Landline telephone penetration increased dramatically while the number of mobile subscribers surpassed even this higher level of fixed line s...

  14. Subcarrier Wave Quantum Key Distribution in Telecommunication Network with Bitrate 800 kbit/s

    Directory of Open Access Journals (Sweden)

    Gleim A.V.

    2015-01-01

    Full Text Available In the course of work on creating the first quantum communication network in Russia we demonstrated quantum key distribution in metropolitan optical network infrastructure. A single-pass subcarrier wave quantum cryptography scheme was used in the experiments. BB84 protocol with strong reference was chosen for performing key distribution. The registered sifted key rate in an optical cable with 1.5 dB loss was 800 Kbit/s. Signal visibility exceeded 98%, and quantum bit error rate value was 1%. The achieved result is a record for this type of systems.

  15. Subcarrier Wave Quantum Key Distribution in Telecommunication Network with Bitrate 800 kbit/s

    Science.gov (United States)

    Gleim, A. V.; Nazarov, Yu. V.; Egorov, V. I.; Smirnov, S. V.; Bannik, O. I.; Chistyakov, V. V.; Kynev, S. M.; Anisimov, A. A.; Kozlov, S. A.; Vasiliev, V. N.

    2015-09-01

    In the course of work on creating the first quantum communication network in Russia we demonstrated quantum key distribution in metropolitan optical network infrastructure. A single-pass subcarrier wave quantum cryptography scheme was used in the experiments. BB84 protocol with strong reference was chosen for performing key distribution. The registered sifted key rate in an optical cable with 1.5 dB loss was 800 Kbit/s. Signal visibility exceeded 98%, and quantum bit error rate value was 1%. The achieved result is a record for this type of systems.

  16. Telecommunication Platforms for Transmitting Sensor Data over Communication Networks-State of the Art and Challenges.

    Science.gov (United States)

    Staniec, Kamil; Habrych, Marcin

    2016-07-19

    The importance of constructing wide-area sensor networks for holistic environmental state evaluation has been demonstrated. A general structure of such a network has been presented with distinction of three segments: local (based on ZigBee, Ethernet and ModBus techniques), core (base on cellular technologies) and the storage/application. The implementation of these techniques requires knowledge of their technical limitations and electromagnetic compatibility issues. The former refer to ZigBee performance degradation in multi-hop transmission, whereas the latter are associated with the common electromagnetic spectrum sharing with other existing technologies or with undesired radiated emissions generated by the radio modules of the sensor network. In many cases, it is also necessary to provide a measurement station with autonomous energy source, such as solar. As stems from measurements of the energetic efficiency of these sources, one should apply them with care and perform detailed power budget since their real performance may turn out to be far from expected. This, in turn, may negatively affect-in particular-the operation of chemical sensors implemented in the network as they often require additional heating.

  17. The incentive regulation in the network management. A cross-sectorial investigation of the network managements energy, telecommunication and railway; Die Anreizregulierung in den Netzwirtschaften. Eine sektoruebergreifende Untersuchung der Netzwirtschaften Energie, Telekommunikation und Eisenbahn

    Energy Technology Data Exchange (ETDEWEB)

    Berndt, Andrea

    2011-07-01

    The author of the book under consideration reports on a cross-sectoral analysis of network management of energy, telecommunications and railways with regard to incentive regulation. The cross-sectoral analysis of incentive regulation requires a systematization of the instrument of payment regulation. Using the example of the incentive regulation, the author provides a rather jurisprudential contribution to a network management dogma.

  18. A Simple Dual Decomposition Method for Resource Allocation in Telecommunication Networks

    Directory of Open Access Journals (Sweden)

    Konnov Igor

    2016-01-01

    Full Text Available We consider a problem of optimal resource allocation in a wireless communication network divided into zones (clusters. The network manager aims to distribute some homogeneous resource (bandwidth among users of several zones in order to maximize the total network profit, which takes into account payments from users and implementation costs. As a result, we obtain a convex optimization problem involving capacity and balance constraints. By using the dual Lagrangian method with respect to the capacity constraint, we reduce the initial problem to a suitable one-dimensional problem, so that calculation of its cost function value leads to independent solution of zonal problems, treated as two-side auction models with one trader. We show that solution of each zonal problem can be found exactly by a simple arrangement type algorithm even in the case where the trader price is not fixed. Besides, we suggest ways to adjust the basic problem to the case of moving nodes. Some results of computational experiments confirm the applicability of the new method.

  19. Real-time medical applications and telecommunications.

    Science.gov (United States)

    Stravs, M

    1999-01-01

    Telecommunications play an important role in telemedicine. Many forms of telecommunication services based on different telecommunication technologies are developed for various needs. The paper deals with complex real-time applications which demand high telecommunication requirements. At the beginning, medical applications are categorised and real-time applications qualified as multimedia applications. Requirements for multimedia elements are listed separately. Later on, short introduction of related telecommunication protocols is given. Real-time medical applications can show their ability in case of guaranteed quality of services delivered by telecommunication network as it is explained in the end.

  20. Experimental Evaluation of the Local Packing Distributed Dynamic Channel Allocation Strategy Application for AI-Madar Telephone Telecommunication Network in Libya

    Directory of Open Access Journals (Sweden)

    Mohamed Yousef Ahmed Abou-Hussein

    2014-06-01

    Full Text Available The great challenge of the remarkably growing demand for personal communication mobile service in Libya has actively motivated Al-Madar Telephone Telecommunication Company to adopt various techniques in order to substantially improve its network capacity. An efficient allocation strategy of communication channels that could ensure good performance of the cellular network is critically needed, given the limited spectrum currently available that uses the Fixed Channel Allocation (FCA strategy. In this study, experimental investigations were conducted to improve Al-Madar Company network by proposing the evaluation of the adoption of the Local Packing Distributed Dynamic Channel Allocation (LP-DDCA strategy. The main reasons for proposing the adoption of the LP-DDCA strategy are; to minimize the call blocking probability, enhancing the network performance and increasing the number of network subscribers. This work has been done by applying actual data from an existing cellular network of Al-Madar Company in to the experimental simulation program. The results demonstrated clearly the superiority of the proposed the LP-DDCA strategy in the investigated locations (cells compared with the currently used FCA strategy. Conclusion: Application of the LP-DDCA strategy could give rise to substantial improvement in Al-Madar telecommunication mobile network performance and it will considerably increase the number of network subscribers.

  1. TWO-LEVEL HIERARCHICAL COORDINATION QUEUING METHOD FOR TELECOMMUNICATION NETWORK NODES

    Directory of Open Access Journals (Sweden)

    M. V. Semenyaka

    2014-07-01

    Full Text Available The paper presents hierarchical coordination queuing method. Within the proposed method a queuing problem has been reduced to optimization problem solving that was presented as two-level hierarchical structure. The required distribution of flows and bandwidth allocation was calculated at the first level independently for each macro-queue; at the second level solutions obtained on lower level for each queue were coordinated in order to prevent probable network link overload. The method of goal coordination has been determined for multilevel structure managing, which makes it possible to define the order for consideration of queue cooperation restrictions and calculation tasks distribution between levels of hierarchy. Decisions coordination was performed by the method of Lagrange multipliers. The study of method convergence has been carried out by analytical modeling.

  2. Mode of Effective Connectivity within a Putative Neural Network Differentiates Moral Cognitions Related to Care and Justice Ethics

    Science.gov (United States)

    Cáceda, Ricardo; James, G. Andrew; Ely, Timothy D.; Snarey, John; Kilts, Clinton D.

    2011-01-01

    Background Moral sensitivity refers to the interpretive awareness of moral conflict and can be justice or care oriented. Justice ethics is associated primarily with human rights and the application of moral rules, whereas care ethics is related to human needs and a situational approach involving social emotions. Among the core brain regions involved in moral issue processing are: medial prefrontal cortex, anterior (ACC) and posterior (PCC) cingulate cortex, posterior superior temporal sulcus (pSTS), insula and amygdala. This study sought to inform the long standing debate of whether care and justice moral ethics represent one or two different forms of cognition. Methodology/Principal Findings Model-free and model-based connectivity analysis were used to identify functional neural networks underlying care and justice ethics for a moral sensitivity task. In addition to modest differences in patterns of associated neural activity, distinct modes of functional and effective connectivity were observed for moral sensitivity for care and justice issues that were modulated by individual variation in moral ability. Conclusions/Significance These results support a neurobiological differentiation between care and justice ethics and suggest that human moral behavior reflects the outcome of integrating opposing rule-based, self-other perspectives, and emotional responses. PMID:21364916

  3. Mode of effective connectivity within a putative neural network differentiates moral cognitions related to care and justice ethics.

    Directory of Open Access Journals (Sweden)

    Ricardo Cáceda

    Full Text Available BACKGROUND: Moral sensitivity refers to the interpretive awareness of moral conflict and can be justice or care oriented. Justice ethics is associated primarily with human rights and the application of moral rules, whereas care ethics is related to human needs and a situational approach involving social emotions. Among the core brain regions involved in moral issue processing are: medial prefrontal cortex, anterior (ACC and posterior (PCC cingulate cortex, posterior superior temporal sulcus (pSTS, insula and amygdala. This study sought to inform the long standing debate of whether care and justice moral ethics represent one or two different forms of cognition. METHODOLOGY/PRINCIPAL FINDINGS: Model-free and model-based connectivity analysis were used to identify functional neural networks underlying care and justice ethics for a moral sensitivity task. In addition to modest differences in patterns of associated neural activity, distinct modes of functional and effective connectivity were observed for moral sensitivity for care and justice issues that were modulated by individual variation in moral ability. CONCLUSIONS/SIGNIFICANCE: These results support a neurobiological differentiation between care and justice ethics and suggest that human moral behavior reflects the outcome of integrating opposing rule-based, self-other perspectives, and emotional responses.

  4. Performance Analysis of Solar Photovoltaic Cells for Telecommunication Cellular Network in Remote Areas of Pakistan

    Directory of Open Access Journals (Sweden)

    Abdul Ghayur

    2016-10-01

    Full Text Available In this research design and implementation of solar photo voltaic cell is done for base transceiver system (BTS of telecom cellular networks in remote areas of Pakistan, to accomplish this task investigation is done regarding the present alternate power source of base transceiver system (BTS that is the generator sets used as a stand-by, prime and t-prime source. This research will examine that generator sets fuel consumption and maintenance cost is considerably high and the cellular company has to pay a lot to keep a site on air and to overcome the connectivity issues.To resolve these issues this research is aimed to implement solar technology on BTS, for this purpose exploration is done regarding BTS rectifier system and suggested to use power on distribution systems 16 (PODS 16, latest technology evolution (LTE based instead of the simple BTS rectifier, this new rectifier is intelligent and has redundant ways to overcome power issues as it has the capability to work directly on solar panel equipments and it requires DC supply. Other important factor is that solar panel recharge batteries for power backup and to keep the site on air during night time. Different cost comparison of solar and generator sets have been done by taking real data of different remote areas sites and in the end it is concluded that solar is the alternate costless, environmental friendly source of energy for BTS and can be implemented both for off-grid and on-grid systems.

  5. Telecommunications Primer

    Directory of Open Access Journals (Sweden)

    Joseph Becker

    2013-05-01

    Full Text Available A description of modern telecommunications devices which can be useful in inter-library communications, including their capacities, types of signals and carriers. Described are telephone lines, radio broadcasting, coaxial cable, microwave and communications satellites. This article, and the one following, were presented as tutorials by the author's to participants at the American Library Association's Atlantic City Convention on June 25, 1969.

  6. Telecommunication Services Engineering- Definitions, Architectures and Tools

    OpenAIRE

    Znaty, Simon; Hubaux, Jean-Pierre

    1999-01-01

    This paper introduces telecommunication services engineering through a definition of services, of network architectures that run services, and of methods, techniques and tools used to develop services. We emphasize the Intelligent Network (IN), the Telecommunication Management Network (TMN) and TINA architectures

  7. Effect of call-clubs to institute local network effects in mobile telecommunication and its′ implications on brand loyalty

    National Research Council Canada - National Science Library

    E. A .C. P Karunarathne; Zhang Jing

    2017-01-01

    .... Due to severe competition, while employing successful customer loyalty strategies, customer locked-in strategies are also commonly used in the telecommunication industry to retain their customers within the firm...

  8. Two and a half years of country-wide rainfall maps using radio links from commercial cellular telecommunication networks

    Science.gov (United States)

    Overeem, A.; Leijnse, H.; Uijlenhoet, R.

    2016-10-01

    Although rainfall estimation employing microwave links from cellular telecommunication networks is recognized as a new promising measurement technique, its potential for long-term large-scale operational rainfall monitoring remains to be demonstrated. This study contributes to this endeavor by deriving a continuous series of rainfall maps from a large 2.5 year microwave link data set of, on average, 3383 links (2044 link paths) covering Netherlands (˜3.5 × 104 km2), a midlatitude country (˜5°E, ˜52°N) with a temperate climate. Maps are extensively verified against an independent gauge-adjusted radar rainfall data set for different temporal (15 min, 1 h, 1 day, 1 month) and spatial (0.9, 74 km2) scales. The usefulness of different steps in the rainfall retrieval algorithm, i.e., a wet-dry classification method and a filter to remove outliers, is systematically assessed. A novel dew filter is developed to correct for dew-induced wet antenna attenuation, which, although a relative underestimation of 6% to 9% is found, generally yields good results. The microwave link rainfall estimation technique performs well for the summer months (June, July, August), even outperforming interpolation of automatic rain gauge data (with a density of ˜1 gauge per 1000 km2), but large deviations are found for the winter months (December, January, February). These deviations are generally expected to be related to frozen or melting precipitation. Hence, our results show the potential of commercial microwave links for long-term large-scale operational rainfall monitoring.

  9. Future vision of advanced telecommunication networks for electric utilities; Denki jigyo ni okeru joho tsushin network no shorai vision

    Energy Technology Data Exchange (ETDEWEB)

    Tonaru, S.; Ono, K.; Sakai, S.; Kawai, Y.; Tsuboi, A. [Central Research Institute of Electric Power Industry, Tokyo (Japan); Manabe, S. [Shikoku Electric Power Co., Inc., Kagawa (Japan); Miki, Y. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1995-06-01

    The vision of an advanced information system is proposed to cope with the future social demand and business environmental change in electric utilities. At the large turning point such as drastic reconsideration of Electricity Utilities Industry Law, further improvement of efficiency and cost reduction are requested as well as business innovation such as proposal of a new business policy. For that purpose utilization of information and its technology is indispensable, and use of multimedia and common information in organization are the future direction for improving information basis. Consequently, free information networks without any limitation due to person and media are necessary, and the following are important: high-speed, high-frequency band, digital, easily connectable and multimedia transmission lines, and cost reduction and high reliability of networks. Based on innovation of information networks and the clear principle on advanced information system, development of new applications by multimedia technologies, diffusion of communication terminals, and promotion of standardization are essential. 60 refs., 30 figs., 5 tabs.

  10. Studies of an application of a mobile communication system to the private telecommunication network. Part 1. Present condition of mobile communication system and proposal of the customer information network by PHS; Idotai tsushin system no denryoku tsushinmo eno tekiyo. 1. Idotai tsushin system no genjo to PHS ni yoru juyo kakei network no teian

    Energy Technology Data Exchange (ETDEWEB)

    Iwasaki, H. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1996-03-01

    An application of various mobile communication systems to the electric power telecommunication network has been investigated. Among these, the customer information network by PHS (personal handy-phone system) has been proposed. Although great numbers of base stations are required for PHS, it can be applied as the customer information network by connecting to the power controller developed by the Central Research Institute of Electric Power Industry. The geostationary satellite telecommunication has been positively utilized by the electric power industry since the Hanshin-Awaji Great Earthquake. It can be used as the customer information network in the future. Since the radio access is a one-way communication, it cannot be applied to the electric power telecommunication network at present. It can be applied to the simple message communication or relatively low-speed data communication through the two-way communication. Public ground mobile telecommunication in the future includes various mobile telecommunication systems. To start the operation in 2000, the ITU (International Telecommunication Union) is making specifications common in the world. It is required to investigate the utilization as multipurpose systems. The network for PHS can be applied to the telecommunication network without optical cable. 20 refs., 5 figs., 3 tabs.

  11. Discussion on Deployment Mode of Telecommunication Network Deployment after the Establishment of China Tower%铁塔公司成立后电信网络部署模式的探讨研究

    Institute of Scientific and Technical Information of China (English)

    谢创湘; 张凯渠

    2016-01-01

    中国铁塔公司的成立对中国电信行业产生非常大的影响。首先总结了全球电信业网络部署模式的类型,随后分析了中国电信运营商在铁塔公司成立后的网络部署模式变化,最后探讨了中国电信业未来的网络部署模式。%The establishment of China Tower company has a giant impact on China’s telecommunication industry. Firstly, the deployment mode classification of global telecommunication networks was summarized. Then, China’s telecommunication operators’ changes of network deployment modes after the establishment of China Tower Company were analyzed. Finally, the network deployment mode of domestic telecommunication industry in the future was discussed.

  12. Methodology of the design of an integrated telecommunications and computer network in a control information system for artillery battalion fire support

    Directory of Open Access Journals (Sweden)

    Slobodan M. Miletić

    2012-04-01

    Full Text Available A Command Information System (CIS in a broader sense can be defined as a set of hardware and software solutions by which one achieves real-time integration of organizational structures, doctrine, technical and technological systems and facilities, information flows and processes for efficient and rational decision-making and functioning. Time distribution and quality of information directly affect the implementation of the decision making process and criteria for evaluating the effectiveness of the system in which the achievement of the most important role is an integrated telecommunications and computer network (ITCN, dimensioned to the spatial distribution of tactical combat units connecting all the elements in a communications unit. The aim is to establish the design methodology as a way of the ITCN necessary to conduct analysis and extract all the necessary elements for modeling that are mapped to the elements of network infrastructure, and then analyzed from the perspective of telecommunications communication standards and parameters of the layers of the OSI network model. A relevant way to verify the designed model ITCN is the development of a simulation model with which adequate results can be obtained. Conclusions on the compliance with the requirements of tactical combat and tactical communication requirements are drawn on the basis of these results.

  13. Exposure to mobile telecommunication networks assessed using personal dosimetry and well-being in children and adolescents: the German MobilEe-study.

    Science.gov (United States)

    Thomas, Silke; Kühnlein, Anja; Heinrich, Sabine; Praml, Georg; von Kries, Rüdiger; Radon, Katja

    2008-11-04

    Despite the increase of mobile phone use in the last decade and the growing concern whether mobile telecommunication networks adversely affect health and well-being, only few studies have been published that focussed on children and adolescents. Especially children and adolescents are important in the discussion of adverse health effects because of their possibly higher vulnerability to radio frequency electromagnetic fields. We investigated a possible association between exposure to mobile telecommunication networks and well-being in children and adolescents using personal dosimetry. A population-based sample of 1.498 children and 1.524 adolescents was assembled for the study (response 52%). Participants were randomly selected from the population registries of four Bavarian (South of Germany) cities and towns with different population sizes. During a Computer Assisted Personal Interview data on participants' well-being, socio-demographic characteristics and potential confounder were collected. Acute symptoms were assessed three times during the study day (morning, noon, evening).Using a dosimeter (ESM-140 Maschek Electronics), we obtained an exposure profile over 24 hours for three mobile phone frequency ranges (measurement interval 1 second, limit of determination 0.05 V/m) for each of the participants. Exposure levels over waking hours were summed up and expressed as mean percentage of the ICNIRP (International Commission on Non-Ionizing Radiation Protection) reference level. In comparison to non-participants, parents and adolescents with a higher level of education who possessed a mobile phone and were interested in the topic of possible adverse health effects caused by mobile telecommunication network frequencies were more willing to participate in the study. The median exposure to radio frequency electromagnetic fields of children and adolescents was 0.18% and 0.19% of the ICNIRP reference level respectively. In comparison to previous studies this is one of

  14. Exposure to mobile telecommunication networks assessed using personal dosimetry and well-being in children and adolescents: the German MobilEe-study

    Directory of Open Access Journals (Sweden)

    von Kries Rüdiger

    2008-11-01

    Full Text Available Abstract Background Despite the increase of mobile phone use in the last decade and the growing concern whether mobile telecommunication networks adversely affect health and well-being, only few studies have been published that focussed on children and adolescents. Especially children and adolescents are important in the discussion of adverse health effects because of their possibly higher vulnerability to radio frequency electromagnetic fields. Methods We investigated a possible association between exposure to mobile telecommunication networks and well-being in children and adolescents using personal dosimetry. A population-based sample of 1.498 children and 1.524 adolescents was assembled for the study (response 52%. Participants were randomly selected from the population registries of four Bavarian (South of Germany cities and towns with different population sizes. During a Computer Assisted Personal Interview data on participants' well-being, socio-demographic characteristics and potential confounder were collected. Acute symptoms were assessed three times during the study day (morning, noon, evening. Using a dosimeter (ESM-140 Maschek Electronics, we obtained an exposure profile over 24 hours for three mobile phone frequency ranges (measurement interval 1 second, limit of determination 0.05 V/m for each of the participants. Exposure levels over waking hours were summed up and expressed as mean percentage of the ICNIRP (International Commission on Non-Ionizing Radiation Protection reference level. Results In comparison to non-participants, parents and adolescents with a higher level of education who possessed a mobile phone and were interested in the topic of possible adverse health effects caused by mobile telecommunication network frequencies were more willing to participate in the study. The median exposure to radio frequency electromagnetic fields of children and adolescents was 0.18% and 0.19% of the ICNIRP reference level respectively

  15. Exposure to mobile telecommunication networks assessed using personal dosimetry and well-being in children and adolescents: the German MobilEe-study

    Science.gov (United States)

    Thomas, Silke; Kühnlein, Anja; Heinrich, Sabine; Praml, Georg; von Kries, Rüdiger; Radon, Katja

    2008-01-01

    Background Despite the increase of mobile phone use in the last decade and the growing concern whether mobile telecommunication networks adversely affect health and well-being, only few studies have been published that focussed on children and adolescents. Especially children and adolescents are important in the discussion of adverse health effects because of their possibly higher vulnerability to radio frequency electromagnetic fields. Methods We investigated a possible association between exposure to mobile telecommunication networks and well-being in children and adolescents using personal dosimetry. A population-based sample of 1.498 children and 1.524 adolescents was assembled for the study (response 52%). Participants were randomly selected from the population registries of four Bavarian (South of Germany) cities and towns with different population sizes. During a Computer Assisted Personal Interview data on participants' well-being, socio-demographic characteristics and potential confounder were collected. Acute symptoms were assessed three times during the study day (morning, noon, evening). Using a dosimeter (ESM-140 Maschek Electronics), we obtained an exposure profile over 24 hours for three mobile phone frequency ranges (measurement interval 1 second, limit of determination 0.05 V/m) for each of the participants. Exposure levels over waking hours were summed up and expressed as mean percentage of the ICNIRP (International Commission on Non-Ionizing Radiation Protection) reference level. Results In comparison to non-participants, parents and adolescents with a higher level of education who possessed a mobile phone and were interested in the topic of possible adverse health effects caused by mobile telecommunication network frequencies were more willing to participate in the study. The median exposure to radio frequency electromagnetic fields of children and adolescents was 0.18% and 0.19% of the ICNIRP reference level respectively. Conclusion In

  16. Tariffication Strategy in Telecommunication Business

    Directory of Open Access Journals (Sweden)

    Gustav Cepciansky

    2004-01-01

    Full Text Available The tariff policy of a telecommunication operator has a strategic importance on achieving of optimal revenues and a fundamental impact on its position in the competition with another operators on the liberalised telecommunication market. The payment for a connection through a telecommunication network is determined by a rate for one call unit, by the duration of the call unit and their count during a call. An operator derives the rate and the duration of the call unit from a detailed analysis of large databases that contain statistical data on counts and duration of particular calls depending on the call type. Only the operator knows these data files and it keeps them confidential. It will be shown in the paper how it is possible to come to an estimation of revenues from telecommunication traffic only knowing a pair of basic parameters. The first considerations handling with this topic can be found in [1], [2],[3].

  17. Telecommunication Reform and WTO

    DEFF Research Database (Denmark)

    Henten, Anders

    1996-01-01

    An analysis of the negotiations on telecommunication liberalisation in the World Trade Organization.......An analysis of the negotiations on telecommunication liberalisation in the World Trade Organization....

  18. Network Structure of Industrial Chain and Competition in Telecommunication Industry%电信产业链网状化与电信市场竞争

    Institute of Scientific and Technical Information of China (English)

    刘玉芹; 胡汉辉

    2011-01-01

    In the context of triple play, telecommunication industry shapes itself with new industrial chain features and market structure, which exert influences on competition strategies of telecom operators. This article holds that the vertical chain of telecommunication industry is undergoing decomposition and reintegrating, horizontal chain is deepening and expanding by triple play development, and side chain is forming with business model innovation of two-sided market. This three-dimensioned industrial chain structure combines into a network structure of industrial chain, in which industrial convergence strengthens contestable feature of telecommunication industry while network externality strengthens monopolistic feature. These opposite and complementary effects of competition and monopoly form a competitive monody structure of telecommunication industry. Accordingly, these network structure of industrial chain and competitive monopoly market structure demand telecom operators implement a comprehensive competitive strategy based on compound industrial chains.%“三网融合”发展背景下,电信产业呈现出新的产业链形态和市场结构特征,并影响了电信运营商的市场竞争策略。本文认为在电信纵向产业链分解与重组的基础上,“三网融合”深化和扩展了电信横向产业链,电信商业模式创新形成了基于双边市场的电信侧向产业链,纵向、横向和侧向三个维度的产业链相互交织形成了网状化产业链形态。这种变化一方面通过产业融合增强了电信产业的可竞争性,另一方面通过网络外部性机制增强了电信产业的可垄断性,两种相反相成的竞争效应共同形成了“三网融合”特有的竞争性垄断市场结构.网状化产业链形态和竞争性垄断市场结构促使电信运营商实行复合产业链竞争策略。

  19. Telemedicine systems and telecommunications.

    Science.gov (United States)

    Harnett, Brett

    2006-01-01

    Successful telemedicine requires appropriate equipment and some kind of telecommunications medium. However, successful telemedicine requires more than just technology. The three essential components are the personnel, the technology and a liberal measure of perseverance. Before the technology can be selected, it is necessary to consider the nature of the information to be transmitted between the sites and the time frame over which it must be sent to achieve the desired clinical goals, because this will determine the choice of equipment and the telecommunications network. Factors to be considered include the types of information to be transmitted, the quantity of information to be transferred, and security and privacy (e.g. in Europe and the USA there has been recent legislation about data security). The choice of transmission method for any telemedicine application is, in practice, a compromise between what one would like and what one can afford. In practice, various trade-offs have to be made, which include cost, availability of the service (i.e. the coverage), bandwidth, reliability and quality of service. Equipment and the telecommunications medium are a necessary, but not sufficient, pre-requisite for a successful telemedicine programme. The right people are also required and they must be properly trained.

  20. Wireless telecommunication systems

    CERN Document Server

    Terré, Michel; Vivier, Emmanuelle

    2013-01-01

    Wireless telecommunication systems generate a huge amount of interest. In the last two decades, these systems have experienced at least three major technological leaps, and it has become impossible to imagine how society was organized without them. In this book, we propose a macroscopic approach on wireless systems, and aim at answering key questions about power, data rates, multiple access, cellular engineering and access networks architectures.We present a series of solved problems, whose objective is to establish the main elements of a global link budget in several radiocommunicati

  1. Modeling of telecommunication processes in an overall complex system

    Science.gov (United States)

    Poryazov, S.; Saranova, E.; Spiridonova, M.

    2015-05-01

    Overall telecommunication network performance for virtual networks with quality of services (QoS) guaranties is considered. Experimental use of a computer algebra system is discussed. The numerical results of three main efficiency parameters of the overall network are presented as functions of the network state in the whole theoretically possible interval for telecommunication systems with losses due to lack of resources. The results might be used for telecommunication network planning and traffic management.

  2. The identification and management of ADHD offenders within the criminal justice system: a consensus statement from the UK Adult ADHD Network and criminal justice agencies.

    Science.gov (United States)

    Young, Susan J; Adamou, Marios; Bolea, Blanca; Gudjonsson, Gisli; Müller, Ulrich; Pitts, Mark; Thome, Johannes; Asherson, Philip

    2011-02-18

    The UK Adult ADHD Network (UKAAN) was founded by a group of mental health specialists who have experience delivering clinical services for adults with Attention Deficit Hyperactivity Disorder (ADHD) within the National Health Service (NHS). UKAAN aims to support mental health professionals in the development of services for adults with ADHD by the promotion of assessment and treatment protocols. One method of achieving these aims has been to sponsor conferences and workshops on adult ADHD.This consensus statement is the result of a Forensic Meeting held in November 2009, attended by senior representatives of the Department of Health (DoH), Forensic Mental Health, Prison, Probation, Courts and Metropolitan Police services. The objectives of the meeting were to discuss ways of raising awareness about adult ADHD, and its recognition, assessment, treatment and management within these respective services. Whilst the document draws on the UK experience, with some adaptations it can be used as a template for similar local actions in other countries. It was concluded that bringing together experts in adult ADHD and the Criminal Justice System (CJS) will be vital to raising awareness of the needs of ADHD offenders at every stage of the offender pathway. Joint working and commissioning within the CJS is needed to improve awareness and understanding of ADHD offenders to ensure that individuals are directed to appropriate care and rehabilitation. General Practitioners (GPs), whilst ideally placed for early intervention, should not be relied upon to provide this service as vulnerable offenders often have difficulty accessing primary care services. Moreover once this hurdle has been overcome and ADHD in offenders has been identified, a second challenge will be to provide treatment and ensure continuity of care. Future research must focus on proof of principle studies to demonstrate that identification and treatment confers health gain, safeguards individual's rights, improves

  3. The identification and management of ADHD offenders within the criminal justice system: a consensus statement from the UK Adult ADHD Network and criminal justice agencies

    Directory of Open Access Journals (Sweden)

    Pitts Mark

    2011-02-01

    Full Text Available Abstract The UK Adult ADHD Network (UKAAN was founded by a group of mental health specialists who have experience delivering clinical services for adults with Attention Deficit Hyperactivity Disorder (ADHD within the National Health Service (NHS. UKAAN aims to support mental health professionals in the development of services for adults with ADHD by the promotion of assessment and treatment protocols. One method of achieving these aims has been to sponsor conferences and workshops on adult ADHD. This consensus statement is the result of a Forensic Meeting held in November 2009, attended by senior representatives of the Department of Health (DoH, Forensic Mental Health, Prison, Probation, Courts and Metropolitan Police services. The objectives of the meeting were to discuss ways of raising awareness about adult ADHD, and its recognition, assessment, treatment and management within these respective services. Whilst the document draws on the UK experience, with some adaptations it can be used as a template for similar local actions in other countries. It was concluded that bringing together experts in adult ADHD and the Criminal Justice System (CJS will be vital to raising awareness of the needs of ADHD offenders at every stage of the offender pathway. Joint working and commissioning within the CJS is needed to improve awareness and understanding of ADHD offenders to ensure that individuals are directed to appropriate care and rehabilitation. General Practitioners (GPs, whilst ideally placed for early intervention, should not be relied upon to provide this service as vulnerable offenders often have difficulty accessing primary care services. Moreover once this hurdle has been overcome and ADHD in offenders has been identified, a second challenge will be to provide treatment and ensure continuity of care. Future research must focus on proof of principle studies to demonstrate that identification and treatment confers health gain, safeguards

  4. Telecommunications in the Classroom.

    Science.gov (United States)

    Clark, Chris; And Others

    This document is a resource guide for educators on using telecommunications in the classroom. The first chapter provides a brief history of telecommunications, describes what telecommunications is, and discusses its value in the classroom today. The second chapter discusses the parts of a telecommunications system and provides technical…

  5. Uncertainty management in telecommunications uninterruptible power supply systems and on their network by utilizing human reasoning methodology

    Science.gov (United States)

    Suntio, Teuvo

    1992-01-01

    A study to find the essential and important matters which can effect the reliable uninterrupted operation of telecommunications power supply systems and to suggest an optimal uncertainty management scheme is reported. The main goal was to find simple and practical but effective methods on which the uncertainty management and the implementation of its tool can be based. Uncertainty management ensures that there is enough reserve energy and minimizes additional uncertainties. It turned out that an optimal solution can be obtained by means of intelligent supervision, control and alarm facilities by utilizing human reasoning methodology, and minimize-uncertainty principles.

  6. Massachusetts Corporation for Educational Telecommunications: Models of Collaboration for the Integration of Telecommunications in Education.

    Science.gov (United States)

    Flores, John G.

    1997-01-01

    The Massachusetts Corporation for Educational Telecommunications (MCET), a quasi-public agency, plays a leadership role in distance education and the integration of telecommunications and education locally and nationally. Operator of the Mass LearnPike satellite network and the Mass Ed OnLine LearnNet computer network, MCET provides expanded…

  7. Scaling-Up Youth-Led Social Justice Efforts through an Online School-Based Social Network.

    Science.gov (United States)

    Kornbluh, Mariah; Neal, Jennifer Watling; Ozer, Emily J

    2016-06-01

    The exploration of social networking sites (SNS) in promoting social change efforts offers great potential within the field of community psychology. Online communities on SNS provide opportunities for bridging across groups, thus fostering the exchange of novel ideas and practices. Currently, there have only been limited efforts to examine SNS within the context of youth-led efforts. To explore the potential of SNS to facilitate the diffusion of social justice efforts between distinct youth groups, we linked three school-based youth-led participatory action research projects involving 54 high school students through a SNS. This study offers an innovative methodological approach and framework, utilizing social network analysis and strategic sampling of key student informants to investigate what individual behaviors and online network features predict student adoption of social change efforts. Findings highlight prospective facilitators and barriers to diffusion processes within a youth-led online network, as well as key constructs that may inform future research. We conclude by providing suggestions for scholars and practitioners interested in examining how SNS can be used to enhance the diffusion of social justice strategies, youth-led engagement efforts, and large-scale civic organizing.

  8. Ad Hoc networks and wireless sensor networks in telecommunications application%Ad Hoc网络与无线传感器网络在电信中的应用

    Institute of Scientific and Technical Information of China (English)

    赵锴

    2009-01-01

    重点介绍Ad Hoc网络与其它传统通信网络相比具有的显著特点,这些特点使得Ad Hoc组网成为无线网络和移动计算领域最集中研究的热点,以及Ad Hoc网络在电信业的应用,除本身具有的重要价值外, 还具有大规模电信级服务.同时介绍无线传感器网络,介绍其特点,对WSN在电信中的应用前景进行分析.%This article puts emphasis on the Ad Hoc networks compared to other traditional communications networks with a notable feature,which make Ad Hoc networks into the wireless network and mobile computing research in the field with the highest concentration of hot spots, and Ad Hoc network applications in the telecommunications industry, in addition to the important value in itself, but also has a large-scale carrier-class service. At the same time, it introduces WSN with a comparative analysis of its characteristics,and analyzes WSN in telecommunications applications.

  9. The Influence Of CSR Awareness On Consumer Purchase Decision Of A Telecommunication Network In Ghana A Case Of La Nkwantanag Madina Municipality

    Directory of Open Access Journals (Sweden)

    Patrick Amfo Anim

    2015-02-01

    Full Text Available Abstract The purpose of this study was to empirically investigate the influence of CSR awareness on consumer purchase intention of a telecommunication network in Ghana. A sample size of one hundred and fifty 150 network subscribers of MTN was selected for the study using the purposive and convenience sampling method. The data obtained were analyzed using Statistical Package for Social Sciences SPSS 20.0 software. From the study the researcher found out that customers are aware of the fact that MTN currently embarks on CSR activity such as hepatitis B Campaign project annual blood donation projects building of schools provision of text books school uniforms development of ICT centers MTN Ghana foundation and Heroes of Change project. However what remained unknown was whether it has an effect on customer purchasing decision of their network or not. The study also revealed that there were other factors that influenced consumer patronage of MTN services such as Brand name quality services reference groups promotions bonuses and products offered by MTN and the country of origin. However CSR activities performed by MTN were rated as a higher factor that influence consumers stay and repurchase of the network. Regulatory bodies should be firm in enforcing laws in corporate organizations and CSR should be viewed as part of the code of ethics of any corporate organization also there should be a national policy from government to set parameters for CSR in Ghana

  10. System Design for Telecommunication Gateways

    CERN Document Server

    Bachmutsky, Alexander

    2010-01-01

    System Design for Telecommunication Gateways provides a thorough review of designing telecommunication network equipment based on the latest hardware designs and software methods available on the market. Focusing on high-end efficient designs that challenge all aspects of the system architecture, this book helps readers to understand a broader view of the system design, analyze all its most critical components, and select the parts that best fit a particular application. In many cases new technology trends, potential future developments, system flexibility and capability extensions are outline

  11. 光纤网络在通讯工程技术中的应用%Application of Optical Fiber Network in Telecommunications Engineering Technology

    Institute of Scientific and Technical Information of China (English)

    王林

    2015-01-01

    光纤网络的诞生和发展是电信史上的一次重要革命,因其具有抗干扰、速率快、容量大的特点,利用光纤的信息传递优势可以最大限度的提高资源利用效率,因此光纤通信改变了传统的通信方式。随着光纤网络在通讯工程技术中的广泛应用,与之配合的网络基础技术也随之发展起来,其已经渗入到有线通信的多个领域,成为现代通信的主力军,对社会生活的影响日益深刻。展望将来的通信行业,光纤网络技术具有不可限量的潜力。因此,研究光纤网络在通讯工程技术中的应用具有十分重要的现实意义。%The birth and development of optical network is an important revolution in the history of telecommunications, because of its advantages of anti-jamming, speed and large capacity optical ifber characteristics, using the advantage of information transmission can improve efifciency and maximum utilization of resources, so the optical ifber communication has changed the traditional way of communication. With the wide application of optical ifber network in telecommunications engineering technology in the basic technology and network matching has been developed, which has penetrated into many ifelds of wire communication, become the main force of modern communication, more profound inlfuence on social life. The prospect of the communications industry in the future, optical ifber network technology has limitless potential. Therefore, has the extremely important practical signiifcance in the application research of optical ifber network communication technology in engineering.

  12. Single-chip MEMS 5 × 5 and 20 × 20 double-pole single-throw switch arrays for automating telecommunication networks

    Science.gov (United States)

    Braun, S.; Oberhammer, J.; Stemme, G.

    2008-01-01

    This paper reports on microelectromechanical (MEMS) switch arrays with 5 × 5 and 20 × 20 double-pole single-throw (DPST) switches embedded and packaged on a single chip, which are intended for automating main distribution frames in copper-wire telecommunication networks. Whenever a customer requests a change in his telecommunication services, the copper-wire network has to be reconfigured which is currently done manually by a costly physical re-routing of the connections in the main distribution frames. To reduce the costs, new methods for automating the network reconfiguration are sought after by the network providers. The presented devices comprise 5 × 5 or 20 × 20 double switches, which allow us to interconnect any of the 5 or 20 input lines to any of the 5 or 20 output lines. The switches are based on an electrostatic S-shaped film actuator with the switch contact on a flexible membrane, moving between a top and a bottom electrode. The devices are fabricated in two parts which are designed to be assembled using selective adhesive wafer bonding, resulting in a wafer-scale package of the switch array. The on-chip routing network consists of thick metal lines for low resistance and is embedded in bencocyclobutene (BCB) polymer layers. The packaged 5 × 5 switch arrays have a size of 6.7 × 6.4 mm2 and the 20 × 20 arrays are 14 × 10 mm2 large. The switch actuation voltages for closing/opening the switches averaged over an array were measured to be 21.2 V/15.3 V for the 5 × 5 array and 93.2 V/37.3 V for the 20 × 20 array, respectively. The total signal line resistances vary depending on the switch position within the array between 0.13 Ω and 0.56 Ω for the 5 × 5 array and between 0.08 Ω to 2.33 Ω for the 20 × 20 array, respectively. The average resistance of the switch contacts was determined to be 0.22 Ω with a standard deviation of 0.05 Ω.

  13. Telecommunications--Electronic Mail.

    Science.gov (United States)

    Kelly, Luke E.; Zuckerman, B. Michael

    1989-01-01

    This article identifies resources needed in order for physical education, recreation, and dance professionals to use computer-based telecommunications; discusses electronic mail; and explains how telecommunications can enhance communication in the field, both within and across professions. (IAH)

  14. Predication-Based Intelligence Routing on Telecommunications

    Institute of Scientific and Technical Information of China (English)

    DONGJun; HEJifeng; PANYunhe

    2004-01-01

    The routingtelecommunication networksbeing one of key issues of management influences the switch rate and load balance directly, and becomes more and more important as the telecommunication traffic increases at full speed. It was said that raising one percent of switch rate of current Chinese telecommunication networks would result in revenue about one billion Yuan RMB. On the basis of demerit-analysis of routing scheme being used, a new intelligent routing strategy based on multi-agent systems and recurrent neural network predication is presented, including routing strategy, Calls generating and agent~ recurrent neural network computation, simulation software design, results and discussion. The results show that the new one is better by virtue of its upstanding distribution and intelligence characters, and provides excellent solution to increase network switch rate and balance network load. Meanwhile, its applications will go beyond the scope of telecommunication networks. But whether the strategy will be perfect depends on the cooperation among operator, manufacturer and researchers.

  15. Early Career Support Program: Telecommunication Mentoring for Rural Teachers.

    Science.gov (United States)

    Thoresen, Carol

    1997-01-01

    Describes the Early Career Support Program (STEP) which uses the Montana Educational Telecommunication Network (METNET) to connect early career teachers in Montana with mentors. Contains 20 references. (DDR)

  16. Energy star compliant voice over internet protocol (VoIP) telecommunications network including energy star compliant VoIP devices

    Energy Technology Data Exchange (ETDEWEB)

    Kouchri, Farrokh Mohammadzadeh

    2012-11-06

    A Voice over Internet Protocol (VoIP) communications system, a method of managing a communications network in such a system and a program product therefore. The system/network includes an ENERGY STAR (E-star) aware softswitch and E-star compliant communications devices at system endpoints. The E-star aware softswitch allows E-star compliant communications devices to enter and remain in power saving mode. The E-star aware softswitch spools messages and forwards only selected messages (e.g., calls) to the devices in power saving mode. When the E-star compliant communications devices exit power saving mode, the E-star aware softswitch forwards spooled messages.

  17. Tropical medicine: Telecommunications and technology transfer

    Science.gov (United States)

    Legters, Llewellyn J.

    1991-01-01

    The potential for global outbreaks of tropical infectious diseases, and our ability to identify and respond to such outbreaks is a major concern. Rapid, efficient telecommunications is viewed as part of the solution to this set of problems - the means to link a network of epidemiological field stations via satellite with U.S. academic institutions and government agencies, for purposes of research, training in tropical medicine, and observation of and response to epidemic emergencies. At a workshop, telecommunications and technology transfer were addressed and applications of telecommunications technology in long-distance consultation, teaching and disaster relief were demonstrated. Applications in teaching and consultation in tropical infectious diseases is discussed.

  18. Nanotechnology for telecommunications

    CERN Document Server

    Anwar, Sohail; Qazi, Salahuddin; Ilyas, Mohammad

    2010-01-01

    With its unique promise to revolutionize science, engineering, technology, and other fields, nanotechnology continues to profoundly impact associated materials, components, and systems, particularly those used in telecommunications. These developments are leading to easier convergence of related technologies, massive storage data, compact storage devices, and higher-performance computing. Nanotechnology for Telecommunications presents vital technical scientific information to help readers grasp issues and challenges associated with nanoscale telecommunication system development and commerciali

  19. A CDMA Spotbeam Architecture for the Next Generation Satellite System (NGSS) for the Aeronautical Telecommunications Network (ATN)

    Science.gov (United States)

    Raghavan, Rajesh S.; Shamma, Mohammed A.

    2003-01-01

    This paper will present work being done to model and simulate a CDMA based Mobile Satellite System architecture for providing all or part of the future Air Traffic Management (ATM) services. Such a system, will help in relieving the dependence on ground based networks, if not eliminate it. Additionally such an architecture can be used in parallel or as a supplementary service along with ground based links to help alleviate any capacity bottlenecks, or in areas where such services are difficult to make available such as in oceanic, remote areas outside the jet highways, or in developing countries where ground services are less available.

  20. Optical fiber telecommunications IIIb

    CERN Document Server

    Koch, Thomas L

    2012-01-01

    Updated to include the latest information on light wave technology, Optical Fiber Telecommunication III, Volumes A & B are invaluable for scientists, students, and engineers in the modern telecommunications industry. This two-volume set includes the most current research available in optical fiber telecommunications, light wave technology, and photonics/optoelectronics. The authors cover important background concepts such as SONET, coding device technology, andWOM components as well as projecting the trends in telecommunications for the 21st century.Key Features* One of the hottest subjects of

  1. 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...

  2. Telecommunications: Opportunities in the emerging technologies

    Energy Technology Data Exchange (ETDEWEB)

    Schultheis, R.W. [Mission Telecommunications Group, Charlottesville, VA (United States)

    1994-12-31

    A series of slides present opportunities for Utility Telecommunications. The following aspects are covered: (1) Technology in a period of revolution; (2) Technology Management by the Energy Utility, (3) Contemporary Telecommunication Network Architectures, (4) Opportunity Management, (5) Strategic Planning for Profits and Growth, (6) Energy Industry in a period of challenge. Management topics and applications are presented in a matrix for generation, transmission, distribution, customer service and new business revenue growth subjects.

  3. System-level design methodologies for telecommunication

    CERN Document Server

    Sklavos, Nicolas; Goehringer, Diana; Kitsos, Paris

    2013-01-01

    This book provides a comprehensive overview of modern networks design, from specifications and modeling to implementations and test procedures, including the design and implementation of modern networks on chip, in both wireless and mobile applications.  Topical coverage includes algorithms and methodologies, telecommunications, hardware (including networks on chip), security and privacy, wireless and mobile networks and a variety of modern applications, such as VoLTE and the internet of things.

  4. The 2009 Mars Telecommunications Orbiter

    Science.gov (United States)

    Wilson, G. R.; Depaula, R.; Diehl, R. E.; Edwards, C. D.; Fitzgerald, R. J.; Franklin, S. F.; Gibbs, R. G.; Kerridge, S. A.; Komarek, T. A.; Noreen, G. K.

    The first spacecraft with a primary function of providing communication links while orbiting a foreign planet has begun development for a launch in 2009. NASA's Mars Telecommunications Orbiter would use three radio bands to magnify the benefits of other future Mars missions and enable some types of missions otherwise impractical. It would serve as the Mars hub for a growing interplanetary Internet. And it would pioneer the use of planet-to-planet laser communications to demonstrate the possibility for even great networking capabilities in the future. During its nearly 10-year mission in orbit, Mars Telecommunications Orbiter would aid navigation of arriving spacecraft to their martian landing sites and monitor critical events during landings and orbit insertions. In addition, it would enable data-transmission volumes great enough to bring a virtual Mars presence to the public through a range of Internet and video features.

  5. Telecommunications administration standard

    Energy Technology Data Exchange (ETDEWEB)

    Gustwiller, K.D. [GTE Customer Networks, Albuquerque, NM (United States)

    1996-05-01

    The administration of telecommunications is critical to proper maintenance and operation. The intent is to be able to properly support telecommunications for the distribution of all information within a building/campus. This standard will provide a uniform administration scheme that is independent of applications, and will establish guidelines for owners, installers, designers and contractors. This standard will accommodate existing building wiring, new building wiring and outside plant wiring. Existing buildings may not readily adapt to all applications of this standard, but the requirement for telecommunications administration is applicable to all buildings. Administration of the telecommunications infrastructure includes documentation (labels, records, drawings, reports, and work orders) of cables, termination hardware, patching and cross-connect facilities, telecommunications rooms, and other telecommunications spaces (conduits, grounding, and cable pathways are documented by Facilities Engineering). The investment in properly documenting telecommunications is a worthwhile effort. It is necessary to adhere to these standards to ensure quality and efficiency for the operation and maintenance of the telecommunications infrastructure for Sandia National Laboratories.

  6. JPRS Report, Telecommunications

    Science.gov (United States)

    2007-11-02

    Radio Stations [Santiago Radio] 18 PERU Government Amends Decree on Telecommunications [EL COMERCIO 17 Nov] 18 Radio, Television Association...Decree on Telecommunications PY2511232891 Lima EL COMERCIO in Spanish 17 Nov 91 p A4 [Article by Alfonso Baella Tuesta from the "Uncon- firmed

  7. Study on Theory and Methods of Telecommunication Tariff

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The pricing of telecommunication services is quite important aswell as complicated. This paper strengthens the research of theories and implementation of telecommunication tariff in China. It is helpful for the government authorities and enterprises to unify and standardize the regulatory methods, to guide the deciding of the structure and level of telecommunication tariff by implementing scientific theories, to further develop and optimize the tariff system. This paper conducts a systematic, in-depth and creative research on some of the most popular and most difficult problems in the area of telecommunication tariff research, such as the regulation of telecommunication tariff, the theories of telecommunication tariff, the systematic pricing theory, the interconnection charge, the model cost evaluation theory, the long-run incremental cost theory, and the international telecommunication tariff. After studying the foreign methods on telecommunication tariff regulation, basing on the current situation of China's tariff regulation, the scope and methods for China's telecommunication tariff regulation are suggested. Aimed at the weakness of pricing theory for enterprises to set up telecommunication tariffs, an overall frame work of telecommunication tariff theories is proposed. The systematic pricing theory and model cost evaluation theory of telecommunication services are put forward from a brand new perspective. A front topic, the LRIC theory, is probed. In addition, the pricing practices of network interconnection charge and international telecommunication tariff, which are currently very attractive to the theorists, are discussed. Basing on these studies, this paper improves the structure of telecommunication tariff theory. It provides the Chinese government authorities with practical methods and helpful supports to regulate the telecommunication tariffs; in the mean time, it also provides the enterprises with scientific pricing theories and methods to set up

  8. Handbook of optimization in telecommunications

    CERN Document Server

    Pardalos, Panos M

    2008-01-01

    Covers the field of optimization in telecommunications, and the optimization developments that are frequently applied to telecommunications. This book aims to provide a reference tool for scientists and engineers in telecommunications who depend upon optimization.

  9. A Social Network Perspective on Turnover Intentions : The Role of Distributive Justice and Social Support

    NARCIS (Netherlands)

    Soltis, Scott M.; Agneessens, Filip; Sasovova, Zuzana; Labianca, Giuseppe (Joe)

    Organizations are increasingly concerned about retaining human talent, particularly within knowledge-based industries where turnover is expensive. Our study employs a social network perspective to explore the influence of employees' formal and informal workplace relationships on their turnover

  10. Market structures in international telecommunications

    DEFF Research Database (Denmark)

    Henten, Anders

    1998-01-01

    Paper dealing with the internationalisation of telecommunications and the developing market structures.......Paper dealing with the internationalisation of telecommunications and the developing market structures....

  11. Space weather & telecommunications

    CERN Document Server

    Goodman, John M

    2006-01-01

    This book is both a survey of practical concepts for forecasting the performance of various telecommunication systems as well as a balanced treatment of space-weather phenomena that give rise to telecommunication impairment episodes. It bridges the gap in the relationship that exists between the following two disciplines: space weather and telecommunication system performance. There are a number of books that address one of the two disciplines in some detail, but only merely mention the other as an afterthought. In this book the author has married the two disciplines so that the readership can

  12. Functional separation in telecommunications

    DEFF Research Database (Denmark)

    Jess Olsen, Ole; Henten, Anders; Falch, Morten

    2008-01-01

    . The focus is on the utilities where the reforms were first introduced, i.e. telecommunications and electricity. The paper examines the following questions: Which are the main reasons for the different regulatory approaches to the liberalisation of telecommunications and electricity supply? In which...... are that the differences in regulation primarily rest on the differences in the techno-economic structures of the two industries, but that some degree of convergence between the modes of regulation has occurred lately. With respect to the rate of success, the achievements are most obvious in telecommunications where...

  13. Telecommunications system reliability engineering theory and practice

    CERN Document Server

    Ayers, Mark L

    2012-01-01

    "Increasing system complexity require new, more sophisticated tools for system modeling and metric calculation. Bringing the field up to date, this book provides telecommunications engineers with practical tools for analyzing, calculating, and reporting availability, reliability, and maintainability metrics. It gives the background in system reliability theory and covers in-depth applications in fiber optic networks, microwave networks, satellite networks, power systems, and facilities management. Computer programming tools for simulating the approaches presented, using the Matlab software suite, are also provided"

  14. VT Telecommunication Facilities

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) The UtilityTelecom_TELEFAC data layer contains points which are intended to represent the location of telecommunications facilities (towers and/or...

  15. The evolution of investments decision mode in China's telecommunication

    Institute of Scientific and Technical Information of China (English)

    ZHANG Ai-hua; ZHAO Lian-qiang; SHU Hua-ying

    2007-01-01

    This essay analyzes the data of Chinese telecommunication market, telecommunication investments and investment benefits over the past 20 years. On the basis of these data, the essay reviews Chinese changing telecommunication policies and discusses the major events in the course of China's telecommunication development. It is argued that telecommunication policies, regime backgrounds and market demand characteristics have a significant impact on investment decision mode in telecommunication industry. The evolution of network investments decision mode in China's telecommunication has corresponded to the transformation of these key factors. Considering the special events in the development of Chinese telecommunication as divisions, the essay discusses three stages of the evolution of investments decision mode in China's telecommunication. With the firm environment and problems that Chinese telecommunication operators have been facing since 2000 analyzed. it is demonstrated that Chinese telecommunication operators should change their mode of investment decision into the "profit-oriented investment decision mode" in order to achieve a high growth performance in the capital market,. This investment decision mode will result in increase of the investment profit with limited investment capital. The main procedure of profit-oriented investment decision mode is set out, which is abstracted to a mathematical model eventually.

  16. The lightweight flow engine: a model for rapid development and emulation of telecommunication services

    NARCIS (Netherlands)

    Wood, Thomas Leslie Peter

    2013-01-01

    This thesis explores a method to model network services with particular emphasis on telecommunication controlplane applications. This class of applications is stateful, that is, the application's correct behavior is predicated upon the processing of previous events. Most telecommunication infrastruc

  17. The Lightweight Flow Engine, A Model for Rapid Development and Emulation for Telecommunication Services

    NARCIS (Netherlands)

    Wood, T.L.P.

    2013-01-01

    This thesis explores a method to model network services with particular emphasis on telecommunication control-plane applications. This class of applications is stateful, that is, the application's correct behavior is predicated upon the processing of previous events. Most telecommunication

  18. A Study of the Impact of Perceived Organizational Justice on Employee\\\\\\'s Social Capital (Case Study: Health Network of Noshahr City

    Directory of Open Access Journals (Sweden)

    Ali Nasr Esfahani

    2013-07-01

    words, no person or organization could succeed without social capital. Because it is related to perceived sense of injustice, this study attempts to discuss the establishment of justice in organization and employees' opinion on this issue as an effective factor regarding the amount of employees' social capital in the organization. The results, if proven, could help managers employ people with more social capital and hence achieve more success by establishing organizational justice. Material and Method The present study is an applied and descriptive research attempting to offer a clear definition for the correlation of perceived organizational justice and the amount of personnel's social capital. This is a cross sectional field research. For testing empirical data, a conceptual model was designed by the authors. This model has two main parts, including organizational justice and social capital. In order to reach to research objectives, four hypotheses have been tested, investigating the relationship between perceived organizational justice and its dimensions (distributive, procedural and interactional justice with the amount of employees' social capital. Research population is composed of the personnel of the health network in Noshahr city, of whom 136 individuals were sampled randomly. For data collection, a questionnaire was made by the researchers containing 31 questions based on Likert's five-degree scale. 15 of the questions include aspects of organizational justice and the other 16 questions are relate to aspects of social capital. The questionnaire has a high reliability (0.91 which was calculated by Cronbach's alpha. Also, the content validity of the questionnaire has been assured by using advice from experts. SPSS software was used for data analysis. The statistical methods used in this research include descriptive statistical methods (such as mean and single sample tables and inferential statistics, including Pearson's correlation coefficient. Discussion of

  19. 网络信息公正问题的研究现状及展望%A Research on Current Situation and Prospect of Network Information Justice

    Institute of Scientific and Technical Information of China (English)

    李志强; 戴艳军

    2012-01-01

    As an inter-discipline between network ethics and information ethics, network information ethics draws more and more attention of scholars, and more monographic studies about it have appeared, among which the study of justice in the field of network information ethics is an important aspect. This paper sums up the present situation of network information justice, presents a prospect, and then gives some advice for the current study of applied ethics discipline, which is of great importance to some disciplines such as network ethics and information ethics.%当前,作为网络伦理和信息伦理交叉领域的网络信息伦理得到学者们越来越多的关注,也出现越来越多的专题研究,网络信息公正问题的研究就是其中一个重要方面。本文综述了该研究领域的发展现状并对未来的发展前景做出展望,提出该研究领域研究需要注意的一些问题,对于完善网络伦理学和信息伦理学等都具有重要意义。

  20. Telecommunications in Florida: Training Materials for Teachers.

    Science.gov (United States)

    Eason, Mike; And Others

    1994-01-01

    Describes the use of the Florida Information Resource Network (FIRN) in Florida public schools. Highlights include electronic mail exchanges; online conferences; remote research; classroom resources; training initiatives for teachers to learn about telecommunications; access to other systems and databases; and inservice, hands-on teacher training.…

  1. The role of the International Telecommunication Union

    NARCIS (Netherlands)

    Shahin, J.

    2010-01-01

    The global telecommunications sector, and its associ- ated policy environment, has been subject to remark- able upheaval in recent decades. Throughout these reconfigurations of the very backbone of the global communications network, one institution has man- aged to survive, evolve and continue funct

  2. Reconciling Epidemiology and Social Justice in the Public Health Discourse Around the Sexual Networks of Black Men Who Have Sex With Men.

    Science.gov (United States)

    Matthews, Derrick D; Smith, Justin C; Brown, Andre L; Malebranche, David J

    2016-05-01

    Several studies have implicated the sexual networks of Black men who have sex with men (MSM) as facilitating disproportionally high rates of new HIV infections within this community. Although structural disparities place these networks at heightened risk for infection, HIV prevention science continues to describe networks as the cause for HIV disparities, rather than an effect of structures that pattern infection. We explore the historical relationship between public health and Black MSM, arguing that the current articulation of Black MSM networks is too often incomplete and counterproductive. Public health can offer a counternarrative that reconciles epidemiology with the social justice that informs our discipline, and that is required for an effective response to the epidemic among Black MSM.

  3. Justice Globalism

    NARCIS (Netherlands)

    Wilson, Erin; Steger, Manfred; Siracusa, Joseph; Battersby, Paul

    2014-01-01

    The pursuit of a global order founded on universal rules extends beyond economics into the normative spheres of law, politics and justice. Justice globalists claim universal principles applicable to all societies irrespective of religion or ideology. This view privileges human rights, democracy and

  4. Justice sociale

    OpenAIRE

    Jacquemain, Marc

    2007-01-01

    At first glance "social justice" cannot be considered as a "new word of power" since all powers have been reluctant to apply social justice. But if it is used to organize the "evaporation" of the reflexion on equality, then it can take a clearly conservative tone

  5. Justice Globalism

    NARCIS (Netherlands)

    Wilson, Erin; Steger, Manfred; Siracusa, Joseph; Battersby, Paul

    2014-01-01

    The pursuit of a global order founded on universal rules extends beyond economics into the normative spheres of law, politics and justice. Justice globalists claim universal principles applicable to all societies irrespective of religion or ideology. This view privileges human rights, democracy and

  6. Organizational Justice

    Science.gov (United States)

    Burns, Travis

    2013-01-01

    Helping principals understand the importance of organizational justice is the first step in enhancing learning outcomes for all learners, regardless of their social class, race, abilities, sex, or gender. In schools, organizational justice may be defined as teachers' perceptions of fairness, respect, and equity that relate to their interactions…

  7. Value added telecommunication services for health care.

    Science.gov (United States)

    Danelli-Mylonas, Vassiliki

    2003-01-01

    The successful implementation and operation of health care networks and the efficient and effective provision of health care services is dependent upon a number of different factors: Telecommunications infrastructure and technology, medical applications and services, user acceptance, education and training, product and applications/services development and service provision aspects. The business model and market development regarding policy and legal issues also must be considered in the development and deployment of telemedicine services to become an everyday practice. This chapter presents the initiatives, role and contribution of the Greek Telecommunications Company in the health care services area and also refers to specific case-studies focusing upon the key factors and issues of applications related to the telecommunications, informatics, and health care sectors, which can also be the drivers to create opportunities for Citizens, Society and the Industry.

  8. 云计算环境下基于Mashup的一种电信网络能力服务提供模式%Telecommunications Network Capability Services Model Based on Mashup Technology in Cloud Computing Environment

    Institute of Scientific and Technical Information of China (English)

    刘勇; 乔秀全; 李晓峰

    2012-01-01

    随着高速发展的互联网和移动通信在业务层面的逐渐融合,国内运营商所采用的“封闭花园”模式的业务架构已经面临各种挑战,因此需要更多地考虑如何有效引入互联网业务和服务模式,不断提升用户体验.在电信运营商逐步开放其电信能力API的背景下,基于Mashup的业务构建模式,提出了一种云计算环境下的电信网络能力服务提供模式.该模式将Mashup的理念移植到电信能力上,并将电信能力封装成Web Element的形式呈现给用户,进一步提升了电信网络能力服务的抽象层次.这种电信能力应用模式打破了电信能力拘泥于手持终端的传统形式,提出了一种新的适合于Web2.0环境的电信网络能力服务提供模式.在“OMP(Open Mobile Internet Platform)应用运行和开发引擎算法及功能研发”项目中的试用证明了其可行性.%With the gradual integration of Internet and mobile communications at the service level, the "closed garden" business model used by domestic telecommunications operators has already been facing many challenges. So it's necessary to consider how to enhance the user experience by effectively introducing Internet business and service models. Against the background that operators are gradually opening their telecommunication APIs, based on the Mashup business-constructed models, this paper proposed a telecommunications network capability services model in the cloud computing environment. The model will package telecommunications capabilities in the form of Web element using Mashup technology and provide telecommunications services to users, which can further enhance the abstraction level of telecommunications network capability services. This model breaks the tradition that telecommunications services stick to be set on mobile telephone and it' s a new telecom service model under the background of Web2. 0. The new service model has proved its feasibility in the project of

  9. Telecommunications in Special Education.

    Science.gov (United States)

    Education Turnkey Systems, Inc., Falls Church, VA.

    One of four reports designed to assess the current state of new technologies, the document reviews the present and future 5-year status of telecommunication technologies in regular and special education. Briefly described are technological and economic aspects of videotex/teletext, subscription services, satellite broadcasting, cable television,…

  10. JPRS Report: Telecommunications.

    Science.gov (United States)

    2007-11-02

    approved for jmhlic release; Diattributlon Unlimited DTIC QUALITY INSPECTED 3 REPRODUCED BY US DEPARTMENTOF COMMERCE NATIONAL TECHNICAL...Paris AFP SCIENCES, 30 Dec 87] 24 France, FRG Sign Accords With China 25 Alcatel Turnkey Equipment for Peking [Paris ELECTRONIQUE ACTUALITES, 22 Jan... ELECTRONIQUE ACTUALITES, 15 Jan 88] 25 FEDERAL REPUBLIC OF GERMANY FRG Telecommunications Deregulation Planned for 1988 [Duesseldorf VDI

  11. Telecommunication using muon beams

    Science.gov (United States)

    Arnold, Richard C.

    1976-01-01

    Telecommunication is effected by generating a beam of mu mesons or muons, varying a property of the beam at a modulating rate to generate a modulated beam of muons, and detecting the information in the modulated beam at a remote location.

  12. Dialing Up Telecommunications Information.

    Science.gov (United States)

    Bates, Mary Ellen

    1993-01-01

    Describes how to find accurate, current information about telecommunications industries, products and services, rates and tariffs, and regulatory information using electronic information resources available from the private and public sectors. A sidebar article provides contact information for producers and service providers. (KRN)

  13. Control and adaptation in telecommunication systems mathematical foundations

    CERN Document Server

    Popovskij, Vladimir; Titarenko, Larysa

    2011-01-01

    This book is devoted to mathematical foundations providing synthesis and analysis of control and adaptation algorithms targeting modern telecommunication systems (TCS). The most popular technologies and network management methods are discussed.

  14. TELECOMMUNICATIONS INFRASTRUCTURE AND GDP /JIPP CURVE/

    Directory of Open Access Journals (Sweden)

    Mariana Kaneva

    2016-07-01

    Full Text Available The relationship between telecommunications infrastructure and economic activity is under discussion in many scientific papers. Most of the authors use for research and analysis the Jipp curve. A lot of doubts about the correctness of the Jipp curve appear in terms of applying econometric models. The aim of this study is a review of the Jipp curve, refining the possibility of its application in modern conditions. The methodology used in the study is based on dynamic econometric models, including tests for nonstationarity and tests for causality. The focus of this study is directed to methodological problems in measuring the local density types of telecommunication networks. This study offers a specific methodology for assessing the Jipp law, through VAR-approach and Granger causality tests. It is proved that mechanical substitution of momentary aggregated variables (such as the number of subscribers of a telecommunication network at the end of the year and periodically aggregated variables (such as GDP per capita in the Jipp�s curve is methodologically wrong. Researchers have to reconsider the relationship set in the Jipp�s curve by including additional variables that characterize the Telecommunications sector and the economic activity in a particular country within a specified time period. GDP per capita should not be regarded as a single factor for the local density of telecommunications infrastructure. New econometric models studying the relationship between the investments in telecommunications infrastructure and economic development may be not only linear regression models, but also other econometric models. New econometric models should be proposed after testing and validating with sound economic theory and econometric methodology.

  15. Disaster management and mitigation: the telecommunications infrastructure.

    Science.gov (United States)

    Patricelli, Frédéric; Beakley, James E; Carnevale, Angelo; Tarabochia, Marcello; von Lubitz, Dag K J E

    2009-03-01

    Among the most typical consequences of disasters is the near or complete collapse of terrestrial telecommunications infrastructures (especially the distribution network--the 'last mile') and their concomitant unavailability to the rescuers and the higher echelons of mitigation teams. Even when such damage does not take place, the communications overload/congestion resulting from significantly elevated traffic generated by affected residents can be highly disturbing. The paper proposes innovative remedies to the telecommunications difficulties in disaster struck regions. The offered solutions are network-centric operations-cap able, and can be employed in management of disasters of any magnitude (local to national or international). Their implementation provide ground rescue teams (such as law enforcement, firemen, healthcare personnel, civilian authorities) with tactical connectivity among themselves, and, through the Next Generation Network backbone, ensure the essential bidirectional free flow of information and distribution of Actionable Knowledge among ground units, command/control centres, and civilian and military agencies participating in the rescue effort.

  16. NATO Telecommunications Symposium

    CERN Document Server

    Lucas, William; Conrath, David

    1978-01-01

    This book contains the proceedings of the first international symposium devoted to research on the evaluation and planning of new person-to-person telecommunication systems. It was sponsored by NATO's Special Programme Panel on Systems Science and took place, in September 1977, at the University of Bergamo in the north of Italy. Telecommunication systems which provide for communication be­ tween people, rather than computers or other instruments, are of two kinds. There are mass communication systems (broadcast radio and television) and interpersonal systems (for example, the telephone and Telex) which join together individuals or small groups. Here we have included in the interpersonal category certain systems for re­ trieving information from computers, essentially those systems in which the role of the computer 1s primarily to act as a store and to identify that information which best fits a user's request. (This excludes management information systems in which the computer performs important transformat...

  17. JPRS Report Telecommunications.

    Science.gov (United States)

    2007-11-02

    the $1.4 million building which will house the terminal equip- ment for the transatlantic fibre optic cable system which Cable and Wireless is...automatic fire detection and suppression systems. The transatlantic fibre optic cable system is owned by Private Trans-Atlantic Telecommunications, (PTAT...a joint venture of Cable and Wireless in the UK and PTAT Systems Inc. in the US. The fibre optic cable system called PTAT-1 will start in the UK

  18. Analyzing Spacecraft Telecommunication Systems

    Science.gov (United States)

    Kordon, Mark; Hanks, David; Gladden, Roy; Wood, Eric

    2004-01-01

    Multi-Mission Telecom Analysis Tool (MMTAT) is a C-language computer program for analyzing proposed spacecraft telecommunication systems. MMTAT utilizes parameterized input and computational models that can be run on standard desktop computers to perform fast and accurate analyses of telecommunication links. MMTAT is easy to use and can easily be integrated with other software applications and run as part of almost any computational simulation. It is distributed as either a stand-alone application program with a graphical user interface or a linkable library with a well-defined set of application programming interface (API) calls. As a stand-alone program, MMTAT provides both textual and graphical output. The graphs make it possible to understand, quickly and easily, how telecommunication performance varies with variations in input parameters. A delimited text file that can be read by any spreadsheet program is generated at the end of each run. The API in the linkable-library form of MMTAT enables the user to control simulation software and to change parameters during a simulation run. Results can be retrieved either at the end of a run or by use of a function call at any time step.

  19. Data Exchange Inventory System for Telecommunications and Systems Operations (DEXI-OTSO)

    Data.gov (United States)

    Social Security Administration — This Data Exchange Inventory (DEXI) for the Office of Telecommunications and System Operations, (OTSO) Network Troubleshooting is a browser-based inventory database...

  20. PTC '81; Proceedings of the Pacific Telecommunications Conference, Honolulu, HI, January 12-14, 1981

    Science.gov (United States)

    Wedemeyer, D. J.

    Investigations related to communication networks are discussed, taking into account a survey of electronic message systems, computer controlled radio broadcasting network switching systems, restrictions on the growth of data networks, bandwidth routing in X.25 networks, an overview of the MX command and communications system, data integrity in data communications with dumb terminals, the development of a performance analysis for flow control with window mechanism, and a Petri net approach to compute the terminal reliability. Institutional barriers to users are considered along with international issues and planning, Pacific island telecommunications, the future direction of telecommunications standards, public service and educational uses of telecommunications, the consumers for telecommunications services, and legal issues arising from use of international information networks. Attention is also given to social effects of telecommunications, transmission system quality control, the information economy, and telecommunications hardware systems.

  1. EAS Telecommunications Certification Bodies (TCB)

    Data.gov (United States)

    Federal Communications Commission — EAS (Equipment Authorization System). A Telecommunication Certification Body (TCB) is an accredited product certification body with the authority to issue Grants of...

  2. CRC handbook of modern telecommunications

    CERN Document Server

    Morreale, Patricia A

    2001-01-01

    This authoritative handbook, contributed to by a team of international experts, covers the most dynamic areas in the changing telecommunications landscape. Written for telecommunications specialists who implement the new technologies, The CRC Handbook of Modern Telecommunications is an excellent companion volume to the authors' The Telecommunications Handbook, but stands well on its own, as it extends the range of topics to include voice over Internet, traffic management, quality of service, and other dominant future trends. It is an indispensable reference for all professionals working in the

  3. Telecommunications: Glossary of telecommunication terms: Federal Standard 1037B

    Science.gov (United States)

    1991-06-01

    The purpose of the standard is to improve the Federal acquisition process by providing Federal departments and agencies a comprehensive, authoritative source of definitions of terms used in telecommunications and directly related disciplines by national, international, and U.S. Government telecommunications specialists.

  4. Research on the Industrial Organization Evolution and Its Performance Impact of Chinese Telecommunications Industry under Network Convergence Progress%网络融合进程中的电信产业组织演化及其绩效影响研究

    Institute of Scientific and Technical Information of China (English)

    刘孟飞

    2014-01-01

    利用31个省市2003-2012年的电信市场面板数据,从网络融合与产业组织演化视角对中国电信产业绩效进行了研究分析。结果表明,我国电信产业的网络融合程度趋于不断提高;电信市场的竞争性有明显加强,但仍属于垄断性市场结构;网络融合与市场结构变迁对电信产业绩效的动态演化均存在积极的影响;一个良好的宏观经济环境有利于电信行业的发展。%Using 2003-2012 panel data of 31 provinces and cities telecommunications market,from the network integra-tion and industrial organization perspective,this paper studies the industrial organization evolution and performance of Chi-na's telecommunications industry. The results show that the degree of network convergence of telecommunications industry tends to constantly improve. The telecommunications market is still a monopolistic market,but the competitiveness has sig-nificantly strengthened. Network integration and market structure changes have played positive effects on the dynamic evolu-tion of telecommunications industrial performance. A favorable macroeconomic environment is conducive to the development of telecommunications industry.

  5. The Nordic Mobile Telecommunication Cluster

    DEFF Research Database (Denmark)

    Jørgensen, Ulrik

    2000-01-01

    A study of the historic role of the Nordic mobile telephone and telecommunications cluster and its background in both coordinated innovation policies and societal developments in Scandinavia.......A study of the historic role of the Nordic mobile telephone and telecommunications cluster and its background in both coordinated innovation policies and societal developments in Scandinavia....

  6. The Nordic Mobile Telecommunication Cluster

    DEFF Research Database (Denmark)

    Jørgensen, Ulrik

    2000-01-01

    A study of the historic role of the Nordic mobile telephone and telecommunications cluster and its background in both coordinated innovation policies and societal developments in Scandinavia.......A study of the historic role of the Nordic mobile telephone and telecommunications cluster and its background in both coordinated innovation policies and societal developments in Scandinavia....

  7. 78 FR 12136 - Preparations for the International Telecommunication Union World Telecommunication Development...

    Science.gov (United States)

    2013-02-21

    ... Preparations for the International Telecommunication Union World Telecommunication Development Conference (ITU... International Telecommunication Advisory Committee (ITAC) to begin preparations for the ITU World Telecommunication Development Conference (WTDC 2014). The meetings are announced to the ITAC committee and referred...

  8. Croatian Telecommunication Market: Concentration Trends in the Period from 2003 to 2008

    Directory of Open Access Journals (Sweden)

    Mirjana Pejić Bach

    2013-01-01

    Full Text Available Telecommunication markets are a valuable factor that contributes to the economic growth and development. The development of the telecommunication markets and services was slower in the countries in transition than in developed European countries, altough after the fall of communism countries in transition implemented a big progress in spreading and modernizing of their telecommunication network.The paper analysis the level of concentration of telecommunication industry in Croatia from 2003 to 2008. The data used in the analysis consider 50 Croatian largest IT firms that are operating on telecommunication market and specific telecommunication sectors: producers of telecommunication equipment, distributers of telecommunication services and implementers of telecommunication solutions. The main two conclusions of this article are: (1 degree of concentration on the telecommunication market in Croatia changed differently in different market shares, (2 degree of concentration on the telecommunication market in Croatia is influenced by different barriers to enter the market.The analysis finds that Croatian telecommunication industry is in a good position even a few steps ahead of some other transition countries.

  9. JPRS Report: Telecommunications.

    Science.gov (United States)

    2007-11-02

    Introduction of ISDN in Europe Discussed [Brussels ZERO UN INFORMATIQUE BELGIUM, 2 Nov 87] 27 FEDERAL REPUBLIC OF GERMANY Limited Reforms Expected for...No 63, Oct 87] 30 France, FRG Step Up Cooperation [Paris ZERO UN INFORMATIQUE , 23 Nov 87] 42 New French ISDN Network Presented [Alain Dieul...Academic Research Network Operating Autonomously [Paris ZERO UN INFORMATIQUE , 2 Nov 87] 45 New Telephone Network Planned for 1989 [Jacqueline de Linares

  10. The Danish Regulatory Reform of Telecommunications

    DEFF Research Database (Denmark)

    Skouby, Knud Erik

    1998-01-01

    An overview of the liberalisation process and regulatory reform of telecommunications in Denmark......An overview of the liberalisation process and regulatory reform of telecommunications in Denmark...

  11. Clustering analysis of telecommunication customers

    Institute of Scientific and Technical Information of China (English)

    REN Hong; ZHENG Yan; WU Ye-rong

    2009-01-01

    In this article, a clustering method based on genetic algorithm (GA) for telecommunication customer subdivision is presented. First, the features of telecommunication customers (such as the calling behavior and consuming behavior) are extracted. Second, the similarities between the multidimensional feature vectors of telecommunication customers are computed and mapped as the distance between samples on a two-dimensional plane. Finally, the distances are adjusted to approximate the similarities gradually by GA. One advantage of this method is the independent distribution of the sample space. The experiments demonstrate the feasibility of the proposed method.

  12. 75 FR 17622 - Equal Access to Justice Act Implementation

    Science.gov (United States)

    2010-04-07

    ...., Washington, DC 20552. The telephone number for the Telecommunications Device for the Deaf is (800) 877-8339... adjudication, without regard to whether the official is designated as a hearing examiner, administrative law... Justice Act in light of the actual relationship between the affiliated entities to consider them to...

  13. Optical fiber telecommunications components and subsystems

    CERN Document Server

    Kaminow, Ivan; Willner, Alan E

    2013-01-01

    Optical Fiber Telecommunications VI (A&B) is the sixth in a series that has chronicled the progress in the R&D of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition brings a fresh look to many essential topics, including devices, subsystems, systems and networks. A central theme is the enabling of high-bandwidth communications in a cost-effective manner for the development of customer applications. These volumes are an ideal reference for R&D engineers and managers, optical systems implementers, university researchers and s

  14. OAM system based on TMN for utility telecommunication network. Proposal of modeling method about managed objects; TMN ni motozuku denryoku tsushinmo no un`yo kanri system. Kanri object no sekkei shuho ni kansuru kento

    Energy Technology Data Exchange (ETDEWEB)

    Hirozawa, T.; Yusa, H.; Otani, T. [Central Research Institute of Electric Power Industry, Tokyo (Japan); Okamura, K. [Tokyo Electric Power Co. Inc., Tokyo (Japan)

    1996-03-01

    To construct an advanced operation and management system for utility telecommunications management network (TMN), this paper proposes a modeling method of managed objects (MOs) required for managing and managed systems, such as an asynchronous transmission mode (ATM) exchanger. Flexible line setting and path switching control are required for the advanced TMN, which must cope with the extension and modification of functions, flexibly. Assignment of roles of managing sides and managed sides was determined. Then, structures of objects such as facilities and logic data, and their interaction were modeled. Common management functions and objects of each function were classified. Based on the TMN standard and MOs of the existing design peculiar to utility, new MOs peculiar to utility were defined in response to the models. The existing MOs can be effectively utilized, and the optimum MOs to be incorporated can be expected. The MOs peculiar to utility are added to the common specification of electric power industry. Since they can be reused for the extension and modification of functions, the cost can be reduced. The MOs applicable to path switching control of utility were designed as a trial. 9 refs., 16 figs., 10 tabs.

  15. 数据仓库在电信本地网中的现状及改进%Data Warehouse Situation and Improve in the Local Telecommunications Network

    Institute of Scientific and Technical Information of China (English)

    厉俊

    2011-01-01

    A local network data warehouse applications aim to support the local network at all levels of business analysis,marketing planning,statistics show the staff report,data extraction and diverse needs,to help the leadership of scientific decision-making,helping managers to understand the insight into the focus of the work development of the sector operators,as first-line account manager to provide guidance and effective targeted marketing support tools.%建立本地网数据仓库应用的目标在于支撑本地网各级的经营分析、营销策划、统计人员对报表展现、数据提取的多样需求,帮助领导层科学决策,帮助部门经理洞察工作的重点以了解本部门经营发展状况,为一线的客户经理提供针对性营销指导和有效的支撑工具等。

  16. JPRS Report, Telecommunications.

    Science.gov (United States)

    1988-07-11

    Series Production [Stefan Lundberg; Stockholm DAGENS NYHETER, 11 May 88] 22 FRANCE National Telephone Network Adapted for Future Digital Services [Paris...Adapted for Future Digital Services 55002461b Paris ZERO UN INFORMATIQUE in French 25 Apr 88 p 35 [Article by E.S.; first paragraph is ZERO UN INFOR

  17. Authentication and Data Security in ITS Telecommunications Solutions

    Directory of Open Access Journals (Sweden)

    Tomas Zelinka

    2014-04-01

    Full Text Available Paper presents telecommunications security issues with dynamically changing networking. Paper also presents performance indicators of authentication as an integral part of the approach to non-public information. Expected level of security depend on relevant ITS services requirements, different solutions require different levels of quality. Data volumes transferred both in private data vehicle on board networks as well as between vehicles and infrastructure or other vehicles significantly and progressively grow. This trend leads to increase of the fatal problems if security of the wide area networks is not relevantly treated. Relevant communications security treatment becomes crucial part of the ITS telecommunications solution because probability of hazards appearances grow if vehicles networks are integrated in the dynamically organized wide area networks. Besides of available "off shelf" security tools solution based on non-public universal identifier with dynamical extension and data selection according to actor role or category is presented including performances indicators for the authentication process.

  18. Study on Co-petition Strategies between Virtual Network Operators and Basic Telecommunication Business Operators%虚拟运营商与基础电信业务经营者的竞合策略研究

    Institute of Scientific and Technical Information of China (English)

    戴刚

    2016-01-01

    随着移动互联网时代的到来,虚拟运营商作为电信行业发展不断开放和成熟、细分市场需求逐渐清晰之下的产物,原来的三家运营商垄断的局面逐渐演变为多方博弈的竞争格局。通过对国内虚拟运营商与基础电信业务经营者合作的环境进行分析,以及对国外虚拟运营商与基础电信业务经营者合作的案例进行深入的剖析,逐步探索出虚拟运营商与基础电信业务经营者双赢的合作策略,旨在为我国移动通信市场可持续发展提供有效的参考和支持。%With the advent of the era of mobile internet, the virtual network operator was the product of the telecom industry’s development, continuous openness and maturity, as the subdivided market demand became clear, the original three-operator monopoly situation evolved into the game of multi-party competition. This paper analyzed the domestic cooperate environment of the virtual network operator and basic telecommunication business operators with in-depth analysis of the foreign cooperation cases, and then gradually explored the win-win cooperation strategy, aiming at providing effective reference and support to the sustainable development of mobile communication market of our country.

  19. Future FAA Telecommunications Plan

    Science.gov (United States)

    1991-08-01

    pathway between the communications and processing functions. 13.2.2 Functional/Physical Interface Requirements The WMSCR interfaces are illustrated in...communication requirements to support full internodal redundancy, and physically diverse communications paths providing circuit redundancy. 13.4.1.1.1...interface as a pathway between itself and users who are attached to (1) the NADIN II directly, (2) through the NADIN PSN/Message Switching Network (MSN) or

  20. JPRS Report, Telecommunications.

    Science.gov (United States)

    2007-11-02

    broadcasting to some extent, "the impact may not be too serious as the loading of the satellite is to be done in a phased manner," said Prof. Rao...time," he said. Under the RRCSS project the village telephones will be controlled by a mini-exchange at the taluk, block or mandal headquarters...networking of all collaborative R&D activities in Europe and for creating market oppor- tunities for the information technology industry. Partic- ipants

  1. Lou Qinjian:The telecommunications industry should accelerate expansion to the information service industry

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Lou Qinjian, Vice-Minister of MII, pointed out recently, the telecommunications industry should comply with the development trend actively, strengthen technological innovation, foster the new point of growth, promote the technology, network, management transformation on the basis of service transformation, and accelerate expansion from the traditional telecommunications industry to the information service industry in all-round way.

  2. Articulation of Industrial R&D with Higher Education in the Telecommunications Sector in South Africa

    Science.gov (United States)

    Paterson, Andrew

    2005-01-01

    This article shows how and why particular higher education?industry research and development networks articulate with the South African telecommunications sector. The range of competing and complementary data telecommunications technologies available in the South African market provide varying opportunities for enterprises to engage in R&D. Two…

  3. GMOs and Global Justice

    DEFF Research Database (Denmark)

    Toft, Kristian Høyer

    2012-01-01

    claims to justice. This article investigates how GMOs might generate claims to global justice and what type of justice is involved. The paper argues that the debate on GMOs and global justice can be categorized into three views, i.e., the cosmopolitan, the pluralist, and the sceptic. The cosmopolitan...... on the premise that global cooperation on GMO production provides the relevant basis for assessing the use of GMOs by the standard of global distributive justice....

  4. Detect telecommunication DoS attacks at network convergence boundary%网络融合边界的电信DoS攻击检测

    Institute of Scientific and Technical Information of China (English)

    邱俊沙; 梅林; 汪孔林; 胡光岷

    2011-01-01

    为了检测网络融合边界的电信拒绝服务攻击,首先针对攻击的类型分别提出了基于呼叫统计或流量信号分析的检测方法,并采用分步骤的策略设计了检测系统,将两种检测算法分别应用于粗检测步骤,再通过精检测步骤确认攻击并找出攻击源.模拟实验结果表明,该方案能够有效地检测出典型的攻击,并能够实时在线检测,具有良好的实用价值,为应对网络融合所带来的新安全问题提供了一种解决方案.%First this paper proposed two detection methods based on either call statistic or traffic signal analysis respectively according to the attack types, then designed a detection system with two stage strategy, which comprised rough detection appl-ying the two methods and precise detection to confirm the attack and find out the source. Simulation shows that the scheme is effective and real-time in detecting typical attacks and can be practically applied, which provides a solution to deal with the new security issue introduced by network convergence.

  5. Spatiotemporal Patterns, Monitoring Network Design, and Environmental Justice of Air Pollution in the Phoenix Metropolitan Region: A Landscape Approach

    Science.gov (United States)

    Pope, Ronald L.

    Air pollution is a serious problem in most urban areas around the world, which has a number of negative ecological and human health impacts. As a result, it's vitally important to detect and characterize air pollutants to protect the health of the urban environment and our citizens. An important early step in this process is ensuring that the air pollution monitoring network is properly designed to capture the patterns of pollution and that all social demographics in the urban population are represented. An important aspect in characterizing air pollution patterns is scale in space and time which, along with pattern and process relationships, is a key subject in the field of landscape ecology. Thus, using multiple landscape ecological methods, this dissertation research begins by characterizing and quantifying the multi-scalar patterns of ozone (O3) and particulate matter (PM10) in the Phoenix, Arizona, metropolitan region. Results showed that pollution patterns are scale-dependent, O3 is a regionally-scaled pollutant at longer temporal scales, and PM10 is a locally-scaled pollutant with patterns sensitive to season. Next, this dissertation examines the monitoring network within Maricopa County. Using a novel multiscale indicator-based approach, the adequacy of the network was quantified by integrating inputs from various academic and government stakeholders. Furthermore, deficiencies were spatially defined and recommendations were made on how to strengthen the design of the network. A sustainability ranking system also provided new insight into the strengths and weaknesses of the network. Lastly, the study addresses the question of whether distinct social groups were experiencing inequitable exposure to pollutants - a key issue of distributive environmental injustice. A novel interdisciplinary method using multi-scalar ambient pollution data and hierarchical multiple regression models revealed environmental inequities between air pollutants and race, ethnicity

  6. Justice for the average Joe: the role of envy and the mentalizing network in the deservingness of others' misfortunes.

    Science.gov (United States)

    Chester, David S; Powell, Caitlin A J; Smith, Richard H; Joseph, Jane E; Kedia, Gayannėe; Combs, David J Y; DeWall, C Nathan

    2013-01-01

    The misfortunes of enviable individuals are met by observers with pleasure whereas those of "average", non-enviable individuals elicit pain. These responses are mirrored in deservingness judgments, as enviable individuals' misfortunes are perceived as deserved and those of non-enviable individuals perceived as undeserved. However, the neural underpinnings of these deservingness disparities remain unknown. To explore this phenomenon, we utilized fMRI to test the hypotheses that (A) non-enviable targets' misfortunes would be associated with activation of brain regions that mediate empathic responding (pain matrix, mentalizing network) and not for enviable targets and (B) that activation of those regions would predict decreases in deservingness judgments. Supporting our first hypothesis, the misfortunes of non-enviable targets (as opposed to good fortunes) were associated with activation of the mentalizing network: medial prefrontal cortex, posterior cingulate cortex, temporal-parietal junction, and anterior temporal lobes. Supporting our second hypothesis, dorsomedial prefrontal cortex activation from this contrast was negatively correlated with subsequent reports of how much the non-enviable target deserved his/her misfortune. These findings suggest that non-enviable individuals' misfortunes are perceived as unjust due, in part, to the recruitment of the mentalizing network.

  7. Disruptive Innovations as a Driving Force for the Change of Wireless Telecommunication Infrastructures

    DEFF Research Database (Denmark)

    Kyoseva, Tsvetoslava; Poulkov, Vladimir; Mihaylov, Mihail Rumenov

    2014-01-01

    Innovations are the driving force for fundamental changes and development of future generation telecommunication networks. When considering innovations as drivers for the development of next generation telecommunication networks an important question is whether an innovative emerging technology...... would cause a disruption requiring fundamental change of the infrastructure or will it will only catalyze its evolution. This paper describes the major characteristics of disruptive innovations as a driving force for fundamental changes in existing telecommunications infrastructures. By analyzing...... the current trends in mobile communications, we reason that the emergence of new telecommunication architectures and infrastructures is inevitable. An important consideration in the analysis is the driving role of disruptive technologies for the future of telecommunications. Based on a model for evaluating...

  8. Privacy Impacts of Educational Telecommunications

    Science.gov (United States)

    Lieberman, David L.; Morgan, Robert P.

    1975-01-01

    Educational telecommunications and information systems are in various stages of coming into being. Several systems of various types are described, including computer-managed instruction systems, computerized vocational guidance systems, two-way interactive cable systems, educational information systems and videotaping for guidance. (Author)

  9. Telecommunications Planning Guide for Educators.

    Science.gov (United States)

    Wigley, Griff

    1988-01-01

    Presents guide developed by the McGraw-Hill Information Exchange (MIX) to help educators plan effectively for the use of computer telecommunications. Highlights include telephone lines; modems; software; commercial information services that offer such services as electronic mail and computer conferencing; basic costs and billing formats; and a…

  10. Acquisition Information Management system telecommunication site survey results

    Energy Technology Data Exchange (ETDEWEB)

    Hake, K.A. [Oak Ridge National Lab., TN (United States); Key, B.G. [COR, Inc., Oak Ridge, TN (United States)

    1993-09-01

    The Army acquisition community currently uses a dedicated, point-to-point secure computer network for the Army Material Plan Modernization (AMPMOD). It must transition to the DOD supplied Defense Secure Network 1 (DSNET1). This is one of the first networks of this size to begin the transition. The type and amount of computing resources available at individual sites may or may not meet the new network requirements. This task surveys these existing telecommunications resources available in the Army acquisition community. It documents existing communication equipment, computer hardware, associated software, and recommends appropriate changes.

  11. Standby battery requirements for telecommunications power

    Science.gov (United States)

    May, G. J.

    The requirements for standby power for telecommunications are changing as the network moves from conventional systems to Internet Protocol (IP) telephony. These new systems require higher power levels closer to the user but the level of availability and reliability cannot be compromised if the network is to provide service in the event of a failure of the public utility. Many parts of these new networks are ac rather than dc powered with UPS systems for back-up power. These generally have lower levels of reliability than dc systems and the network needs to be designed such that overall reliability is not reduced through appropriate levels of redundancy. Mobile networks have different power requirements. Where there is a high density of nodes, continuity of service can be reasonably assured with short autonomy times. Furthermore, there is generally no requirement that these networks are the provider of last resort and therefore, specifications for continuity of power are directed towards revenue protection and overall reliability targets. As a result of these changes, battery requirements for reserve power are evolving. Shorter autonomy times are specified for parts of the network although a large part will continue to need support for hours rather minutes. Operational temperatures are increasing and battery solutions that provide longer life in extreme conditions are becoming important. Different battery technologies will be discussed in the context of these requirements. Conventional large flooded lead/acid cells both with pasted and tubular plates are used in larger central office applications but the majority of requirements are met with valve-regulated lead/acid (VRLA) batteries. The different types of VRLA battery will be described and their suitability for various applications outlined. New developments in battery construction and battery materials have improved both performance and reliability in recent years. Alternative technologies are also being proposed

  12. 76 FR 54244 - Telecommunications Service Priority System

    Science.gov (United States)

    2011-08-31

    ... SECURITY Telecommunications Service Priority System AGENCY: National Protection and Programs Directorate... currently approved collection: 1670-0005, Telecommunications Service Priority (TSP) System. DHS previously.... SUPPLEMENTARY INFORMATION: The purpose of the TSP System is to provide a legal basis for...

  13. The political economy of competition in telecommunication

    DEFF Research Database (Denmark)

    Henten, Anders; Skouby, Knud Erik

    1998-01-01

    Article dealing with the regulation of telecommunications and the establishment of a competitive regime.......Article dealing with the regulation of telecommunications and the establishment of a competitive regime....

  14. Government Procurement Agreements and Telecommunications Business

    Directory of Open Access Journals (Sweden)

    Shin-Won Kang

    2001-12-01

    Full Text Available The opening of the telecommunications market is acceleration due to the world trends of deregulation and privatization under the WTO basic telecommunications agreements. Diversification of services and fast and efficient equipment procurement are becoming necessary conditions for the survival of telecommunications operators. However, the issue here is that telecommunications operators are still bound by the GPA (Government Procurement Agreement based on conditions of monopoly even though the procurement market in Korean is open substantially since 1997. Under such conditions, the continued application of the GPA on telecommunications operator who is highly competitive may result in a negative impact on the telecommunications business and quality of telecommunications service by undermining the autonomy of operator and decreasing operator’s procurement competitiveness. Therefore, this study examines the GPA and the issues raised by the agreement, and also attempts to suggest revisions or means of abrogating the unfair GPA with regards to the development and deregulation of the telecommunications business.

  15. Crippling Sexual Justice

    DEFF Research Database (Denmark)

    Stormhøj, Christel

    2015-01-01

    . The article develops a normative and analytical framework, encompassing the multiple structural conditions, the virtues of citizens, and the emotional dimension of belonging, which enable or hamper justice. It integrates theories of democratic citizenship, belonging, and social justice, and provides...

  16. Justice and medical ethics.

    Science.gov (United States)

    Gillon, R

    1985-07-20

    Justice, in the sense of fair adjudication between conflicting claims, is held to be relevant to a wide range of issues in medical ethics. Several differing concepts of justice are briefly described, including Aristotle's formal principle of justice, libertarian theories, utilitarian theories, Marxist theories, the theory of John Rawls, and the view--held, for example, by W.D. Ross--that justice is essentially a matter of reward for individual merit.

  17. 7 CFR 1700.55 - Telecommunications Program.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false Telecommunications Program. 1700.55 Section 1700.55... AGRICULTURE GENERAL INFORMATION Loan and Grant Approval Authorities § 1700.55 Telecommunications Program. (a..., Telecommunications Program, has the authority to approve the following loans, loan guarantees, and...

  18. 48 CFR 870.112 - Telecommunications equipment.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Telecommunications... DEPARTMENT SUPPLEMENTARY REGULATIONS SPECIAL PROCUREMENT CONTROLS Controls 870.112 Telecommunications... specifications for telecommunications equipment, as defined in VA manual MP-6, Part VIII (available at any...

  19. 7 CFR 1700.29 - Telecommunications Program.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false Telecommunications Program. 1700.29 Section 1700.29... AGRICULTURE GENERAL INFORMATION Agency Organization and Functions § 1700.29 Telecommunications Program. RUS and RTB, through the Telecommunications Program, make loans and loan guarantees to furnish and...

  20. 29 CFR 1910.268 - Telecommunications.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 5 2010-07-01 2010-07-01 false Telecommunications. 1910.268 Section 1910.268 Labor... OCCUPATIONAL SAFETY AND HEALTH STANDARDS Special Industries § 1910.268 Telecommunications. (a) Application. (1..., methods, operations, installations and processes performed at telecommunications centers and...

  1. Juvenile Justice in Milwaukee

    Science.gov (United States)

    Williams, Gary L.; Greer, Lanetta

    2010-01-01

    Historically, there have been several attempts made to address issues surrounding juvenile delinquency. The Wisconsin Legislature outlines the objectives of the juvenile justice system in the Juvenile Justice Code in s. 939.01, ?to promote a juvenile justice system capable of dealing with the problem of juvenile delinquency, a system which will…

  2. Models of distributive justice.

    Science.gov (United States)

    Wolff, Jonathan

    2007-01-01

    Philosophical disagreement about justice rages over at least two questions. The most immediate is a substantial question, concerning the conditions under which particular distributive arrangements can be said to be just or unjust. The second, deeper, question concerns the nature of justice itself. What is justice? Here we can distinguish three views. First, justice as mutual advantage sees justice as essentially a matter of the outcome of a bargain. There are times when two parties can both be better off by making some sort of agreement. Justice, on this view, concerns the distribution of the benefits and burdens of the agreement. Second, justice as reciprocity takes a different approach, looking not at bargaining but at the idea of a fair return or just price, attempting to capture the idea of justice as equal exchange. Finally justice as impartiality sees justice as 'taking the other person's point of view' asking 'how would you like it if it happened to you?' Each model has significantly different consequences for the question of when issues of justice arise and how they should be settled. It is interesting to consider whether any of these models of justice could regulate behaviour between non-human animals.

  3. 78 FR 17992 - Preparations for the International Telecommunication Union World Telecommunication Development...

    Science.gov (United States)

    2013-03-25

    ... Preparations for the International Telecommunication Union World Telecommunication Development Conference (ITU... Telecommunication Advisory Committee (ITAC) to review the activities of its ad hoc group for preparations for the ITU World Telecommunication Development Conference (WTDC 2014), as well as preparations for other...

  4. Space Telecommunications Radio System STRS Cognitive Radio

    Science.gov (United States)

    Briones, Janette C.; Handler, Louis M.

    2013-01-01

    Radios today are evolving from awareness toward cognition. A software defined radio (SDR) provides the most capability for integrating autonomic decision making ability and allows the incremental evolution toward a cognitive radio. This cognitive radio technology will impact NASA space communications in areas such as spectrum utilization, interoperability, network operations, and radio resource management over a wide range of operating conditions. NASAs cognitive radio will build upon the infrastructure being developed by Space Telecommunication Radio System (STRS) SDR technology. This paper explores the feasibility of inserting cognitive capabilities in the NASA STRS architecture and the interfaces between the cognitive engine and the STRS radio. The STRS architecture defines methods that can inform the cognitive engine about the radio environment so that the cognitive engine can learn autonomously from experience, and take appropriate actions to adapt the radio operating characteristics and optimize performance.

  5. 76 FR 32980 - Telecommunications Service Priority (TSP) System

    Science.gov (United States)

    2011-06-07

    ... SECURITY Telecommunications Service Priority (TSP) System AGENCY: National Protection and Programs... telecommunications vendors to provide priority provisioning and restoration of telecommunications services supporting..., National Communications System. Title: Telecommunications Service Priority System. OMB Number:...

  6. 31 CFR 538.512 - Transactions related to telecommunications authorized.

    Science.gov (United States)

    2010-07-01

    ... telecommunications authorized. 538.512 Section 538.512 Money and Finance: Treasury Regulations Relating to Money and... telecommunications authorized. All transactions with respect to the receipt and transmission of telecommunications... a person in Sudan of telecommunications equipment or technology....

  7. Telecommunications in connection with the offshore petroleum activity. Telekommunikasjon i forbindelse med petroleumsvirksomhet til havs

    Energy Technology Data Exchange (ETDEWEB)

    1984-01-01

    The conference proceedings contain 19 papers. The topics covered are: Telecommunications in the North Sea; Who has the telecommunications engineering capacity. Concession obligation, obligatory equipment and technical requirements - the regulations of the Norwegian Telecommunications Administration; Loudspeaker and alarm installations on offshore platforms; Telephone systems and networks for offshore platforms; Satelitte communications to platforms - present day and in the future; The use of offshore microwave communications; Power supply plants for communications systems; Radio/TV entertainment installations; Telecommunication cables for offshore applications; Electric installations in areas with a danger of explosion; Fiber optics applications and possibilities offshore; Telecommunications net for STATPIPE; Data communications; New communications systems offshore. Separate abstracts were prepared for none of the papers of the proceedings.

  8. Overview of European technology in computers, telecommunications, and electronics

    Science.gov (United States)

    Blackburn, J. F.

    1990-05-01

    The emergence of the personal computer, the growing use of distributed systems, and the increasing demand for supercomputers and mini-supercomputers are causing a profound impact on the European computer market. An equally profound development in telecommunications is the integration of voice, data, and images in the public network systems - the Integrated Service Digital Network (ISDN). The programs being mounted in Europe to meet the challenges of these technologies are described. The Europe-wide trends and actions with respect to computers, telecommunications, and microelectronics are discussed, and the major European collaborative programs in these fields are described. Specific attention is given to the European Strategic Programme for Research and Development in Information (ESPRIT); Research in Advanced Communications for Europe (RACE); European Research Coordination Agency (Eureka) programs; Joint European Submicron Silicon Initiative (JESSI); and the recently combined programs Basic Research Industrial Technologies in Europe/European Research in Advanced Materials (BRITE/EURAM).

  9. Network Convergence,Technical Progress and Productivity Growth in Telecommunications Industry-Empirical Analysis Based on Provincial Panel Data of China%网络融合、技术进步与电信业生产率增长--基于中国31省市面板数据的实证研究

    Institute of Scientific and Technical Information of China (English)

    刘孟飞

    2014-01-01

    文章立足网络融合深化发展的现实背景,首先引入Herfindahl指数衡量中国电信业网络融合程度,然后采用Malmquist生产率指数方法测算了我国电信业的全要素生产力及其分解值变化情况,并通过构建多元面板回归模型,对网络融合、政府规制及其他影响因素进行了实证检验。研究结果表明:整体上,中国电信业全要素生产率实现了明显的增长,增长的源泉主要来自于技术进步。在影响因素方面,网络融合和行业重组改革对中国电信业的全要素生产率增长和技术进步均起到了积极的促进作用,价格上限规制政策则产生了明显的负面作用。此外,经济发展水平、人口密度、市场规模、电信业重要程度等宏观经济因素也从不同方面产生重要影响。%The paper measures the degree of network convergence of Chinese telecommunications industry by Herfindahl index ,considering the development of network convergence .We calculate the telecommunications industry's TFP and its decomposition value through Malmquist productivity index method .And we make an empirical test of the effects of network convergence ,government regulation ,and other factors by constructing a multivariate panel regression model .The results show that the overall TFP of Chinese telecommunications in-dustry has increased significantly ,w hich mainly comes from technical progress .In terms of influencing factors , network convergence and industry restructuring reform both play a positive role in Chinese telecommunications industry T FP grow th and technological progress ,but the regulation policy of price cap produces a significant negative effect .In addition ,there exist significant impacts from different aspects in the level of economic devel-opment ,population density ,market size ,degree of importance and other macroeconomic factors .

  10. Leadership for Social Justice: Social Justice Pedagogies

    OpenAIRE

    Bogotch, Ira; Reyes-Guerra, Daniel

    2014-01-01

    The relationship between educational leadership and practices of social justice is now entering its second decade with respect to empirical research studies. There have been three distinct research agendas: the first involves attempts to define the meaning(s) of educational leadership for social justice; the second is the descriptive documentation of school leadership behaviors which address social injustices and inequities within schools; and, the third focuses on the development of leadersh...

  11. High temperature superconductors applications in telecommunications

    Science.gov (United States)

    Kumar, A. Anil; Li, Jiang; Zhang, Ming Fang

    1995-01-01

    The purpose of this paper is twofold: (1) to discuss high temperature superconductors with specific reference to their employment in telecommunications applications; and (2) to discuss a few of the limitations of the normally employed two-fluid model. While the debate on the actual usage of high temperature superconductors in the design of electronic and telecommunications devices - obvious advantages versus practical difficulties - needs to be settled in the near future, it is of great interest to investigate the parameters and the assumptions that will be employed in such designs. This paper deals with the issue of providing the microwave design engineer with performance data for such superconducting waveguides. The values of conductivity and surface resistance, which are the primary determining factors of a waveguide performance, are computed based on the two-fluid model. A comparison between two models - a theoretical one in terms of microscopic parameters (termed Model A) and an experimental fit in terms of macroscopic parameters (termed Model B) - shows the limitations and the resulting ambiguities of the two-fluid model at high frequencies and at temperatures close to the transition temperature. The validity of the two-fluid model is then discussed. Our preliminary results show that the electrical transport description in the normal and superconducting phases as they are formulated in the two-fluid model needs to be modified to incorporate the new and special features of high temperature superconductors. Parameters describing the waveguide performance - conductivity, surface resistance and attenuation constant - will be computed. Potential applications in communications networks and large scale integrated circuits will be discussed. Some of the ongoing work will be reported. In particular, a brief proposal is made to investigate of the effects of electromagnetic interference and the concomitant notion of electromagnetic compatibility (EMI/EMC) of high T

  12. High temperature superconductors applications in telecommunications

    Energy Technology Data Exchange (ETDEWEB)

    Kumar, A.A.; Li, J.; Zhang, M.F. [Prairie View A& M Univ., Texas (United States)

    1994-12-31

    The purpose of this paper is twofold: to discuss high temperature superconductors with specific reference to their employment in telecommunications applications; and to discuss a few of the limitations of the normally employed two-fluid model. While the debate on the actual usage of high temperature superconductors in the design of electronic and telecommunications devices-obvious advantages versus practical difficulties-needs to be settled in the near future, it is of great interest to investigate the parameters and the assumptions that will be employed in such designs. This paper deals with the issue of providing the microwave design engineer with performance data for such superconducting waveguides. The values of conductivity and surface resistance, which are the primary determining factors of a waveguide performance, are computed based on the two-fluid model. A comparison between two models-a theoretical one in terms of microscopic parameters (termed Model A) and an experimental fit in terms of macroscopic parameters (termed Model B)-shows the limitations and the resulting ambiguities of the two-fluid model at high frequencies and at temperatures close to the transition temperature. The validity of the two-fluid model is then discussed. Our preliminary results show that the electrical transport description in the normal and superconducting phases as they are formulated in the two-fluid model needs to be modified to incorporate the new and special features of high temperature superconductors. Parameters describing the waveguide performance-conductivity, surface resistance and attenuation constant-will be computed. Potential applications in communications networks and large scale integrated circuits will be discussed. Some of the ongoing work will be reported. In particular, a brief proposal is made to investigate of the effects of electromagnetic interference and the concomitant notion of electromagnetic compatibility (EMI/EMC) of high T{sub c} superconductors.

  13. Service Quality Management in the ITS Telecommunications Systems

    Directory of Open Access Journals (Sweden)

    Tomas Zelinka

    2013-12-01

    Full Text Available Guaranteed selected quality of telecommunication service and wide area coverage are typical requirements of the ITS (Intelligent Transport Systems applications. Extensive range of wireless data services with reasonable coverage is provided by public wireless services operators, however, mostly no guaranteed relevant range of quality and security is available. ITS services require cost-effectively solution which can be resolved by combination of the "core" public solution with the other public as well as private services where and when it is needed. Such approach requires implementation of the relevant flexible system architecture supported by the efficient decision processes. ITS specific service security requirements would not underestimated, as well. Special situation is identified in case of the C2I (Car to Infrastructure and C2C (Car to Car communication namely if the vehicle on board unit is interconnected with the vehicle CAN (Controlled Area Network based network. Such configurations significantly increase potential of dangerous intruders´ attacks. Probability of the critical hazards appearances grows if the ITS data are accessible in the wide area networks. That is also the main reason why relevant telecommunications security support is understood as one of the crucial part of the ITS telecommunications solution.

  14. Present state of the telecommunications market in Poland

    Science.gov (United States)

    Zielinski, Andrzej

    2003-10-01

    This statement shortly describes the changes in the telecommunication market that have taken place in the last 12 years, during the socio-economical transformation in Poland. It concerns economical, legal and technical problems related to the development of the telecommunications in Poland based on the principles of the market economy. Especially it is related to the commercialization of this sector, what has been a result of the changes of the principal law ruling the national economy including changes ot the telecommunication law. Changes of the law enabled the creation of the commercial company Polish Telecom and opened the way to the privatization of this company. Due to the changed law the way to the step-by-step liberalization and de-monopolization process has been also opened in Poland. It has caused fully digital modernization of telecommunication network, introduction new services such as cellular communications and Internet services, as well as rapid development of the market, what has expressed in multiplication of number of subscribers of stationary telephony, creation of the big cellular market and new increasing Internet market. The statemnet also refers to present difficulties in development of this market and as well as to the prospects for the future developments.

  15. Justice and Negotiation.

    Science.gov (United States)

    Druckman, Daniel; Wagner, Lynn M

    2016-01-01

    This review article examines the literature regarding the role played by principles of justice in negotiation. Laboratory experiments and high-stakes negotiations reveal that justice is a complex concept, both in relation to attaining just outcomes and to establishing just processes. We focus on how justice preferences guide the process and outcome of negotiated exchanges. Focusing primarily on the two types of principles that have received the most attention, distributive justice (outcomes of negotiation) and procedural justice (process of negotiation), we introduce the topic by reviewing the most relevant experimental and field or archival research on the roles played by these justice principles in negotiation. A discussion of the methods used in these studies precedes a review organized in terms of a framework that highlights the concept of negotiating stages. We also develop hypotheses based on the existing literature to point the way forward for further research on this topic.

  16. Robustness and Optimization of Complex Networks: Reconstructability, Algorithms and Modeling

    NARCIS (Netherlands)

    Liu, D.

    2013-01-01

    The infrastructure networks, including the Internet, telecommunication networks, electrical power grids, transportation networks (road, railway, waterway, and airway networks), gas networks and water networks, are becoming more and more complex. The complex infrastructure networks are crucial to our

  17. Danish Telecommunications: Keeping the Policy Options Open

    DEFF Research Database (Denmark)

    Henten, Anders; Wulff, Thomas

    1996-01-01

    In recent years Danish telecommunications policy has gone through a marked change in emphasis, Tele Danmark, formed only 6 years ago as the national operator in order to strengthen the Danish telecom industry, has come under pressure in the present liberalization. This article discusses Tele...... Danmark's situation and future possibilities and presents background information on the new Danish telecommunications legislation, the present Danish telecommunications market, and Tele Danmark's strategies. Copyright (C) 1996 Elsevier Science Ltd...

  18. Forecasting telecommunications data with linear models

    OpenAIRE

    Madden, Gary G; Tan, Joachim

    2007-01-01

    For telecommunication companies to successfully manage their business, companies rely on mapping future trends and usage patterns. However, the evolution of telecommunications technology and systems in the provision of services renders imperfections in telecommunications data and impinges on a company’s’ ability to properly evaluate and plan their business. ITU Recommendation E.507 provides a selection of econometric models for forecasting these trends. However, no specific guidance is given....

  19. The Relationship Between Service Quality and Customer Satisfaction in the Telecommunication Industry: Evidence From Nigeria

    OpenAIRE

    Olu Ojo

    2010-01-01

    This study investigates the relationship between service quality and customer satisfaction in the telecommunication industry with a focus on Mobile Telecommunication Network (MTN) Nigeria. A total of 230 respondents participated in the study. Research questions and objectives were set, alongside the hypotheses that were formulated and tested. Descriptive statistics comprising the simple percentage and tables were used for data presentation and analysis. Regression analysis and Pearson product...

  20. CUSTOMER CARE AS AN ESSENTIAL ELEMENT IN THE TELECOMMUNICATION INDUSTRY : Case Airtel Ghana.

    OpenAIRE

    Gambo, Ramatu Bashiru

    2016-01-01

    Today, an evolution of mobile internet has led to a dramatic demand of mobile network services within the telecommunication industry. This has compelled telecommunication companies not to only consider price as a major competing tool in intense competing markets but also, focus on customer care as a means of excelling in those markets. The purpose of this study is to investigate customer care activities practiced by Airtel Ghana, the case company and their impact on the company’s service deli...

  1. restorative justice, criminal justice and access to justice

    African Journals Online (AJOL)

    wide range of human rights that are enshrined in ... series, which tend to glorify the role of the prosecutor in a dramatic depiction of good versus bad. However, reality ... unpredictable transformation'.6 Models of practice ..... Funding and resources are also needed. 18 .... Restorative Justice Week, Protea Hotel, Umhlanga.

  2. Citizenship and social justice

    NARCIS (Netherlands)

    A.P.J. Bernts (Ton); L. d' Anjou (Leo); D. Houtman (Dick)

    1992-01-01

    textabstractDiscussions on the problems of the welfare state are increasingly framed in terms of citizenship rather than social justice. The popularity of the concept of citizenship raises the question of its implications for social justice theory and research. In this article it is argued that wher

  3. Imagining Social Justice

    Science.gov (United States)

    McArdle, Felicity; Knight, Linda; Stratigos, Tina

    2013-01-01

    This article examines how creativity and the arts can assist teachers who teach from a social justice perspective, and how knowledge built through meaningful experiences of difference can make a difference. Just as imagining is central to visual arts practice, so too is the capacity to imagine a necessity for social justice. The authors ask what…

  4. Citizenship and social justice

    NARCIS (Netherlands)

    A.P.J. Bernts (Ton); L. d' Anjou (Leo); D. Houtman (Dick)

    1992-01-01

    textabstractDiscussions on the problems of the welfare state are increasingly framed in terms of citizenship rather than social justice. The popularity of the concept of citizenship raises the question of its implications for social justice theory and research. In this article it is argued that

  5. Justice as Europe's Signifier

    NARCIS (Netherlands)

    Roy, Suryapratim; Kochenov, Dimitry; de Burca, Grainne; Williams, Andrew

    2015-01-01

    Drawing on the fact that justice is never explained in European legal discourse, but is used in conjunction with other principles and institutional decisions, this contribution argues that justice is used as a rhetorical tool to provide legitimacy to such principles and decisions. An analogous

  6. Renewing Juvenile Justice

    Science.gov (United States)

    Macallair, Daniel; Males, Mike; Enty, Dinky Manek; Vinakor, Natasha

    2011-01-01

    The Center on Juvenile and Criminal Justice (CJCJ) was commissioned by Sierra Health Foundation to critically examine California's juvenile justice system and consider the potential role of foundations in promoting systemic reform. The information gathered by CJCJ researchers for this report suggests that foundations can perform a key leadership…

  7. Citizenship and social justice

    NARCIS (Netherlands)

    A.P.J. Bernts (Ton); L. d' Anjou (Leo); D. Houtman (Dick)

    1992-01-01

    textabstractDiscussions on the problems of the welfare state are increasingly framed in terms of citizenship rather than social justice. The popularity of the concept of citizenship raises the question of its implications for social justice theory and research. In this article it is argued that wher

  8. Relações interfirmas e emprego na rede de empresas: a experiência de externalização de uma empresa no setor de telecomunicações Intercompany relations and employment in the businesses network: the experience of internalization of one company from the telecommunications industry

    Directory of Open Access Journals (Sweden)

    Sandro Ruduit

    2002-12-01

    Full Text Available A reestruturação do setor de telecomunicações vem implicando a formação de estruturas empresariais na forma de rede. Neste artigo, examinam-se os padrões de relacionamento interfirmas e de emprego na rede de empresas liderada pela Companhia Riograndense de Telecomunicações (CRT. A análise abrange onze empresas, prestadoras de diferentes tipos de serviços (digitalização de centrais de comutação, cabeamento e instalação de terminais telefônicos e localizadas em diversos níveis da rede ("empresas terceiras", "quartas", "quintas" e "sextas". Conclui-se que existe grande diversidade no relacionamento interempresas (relacionadas à interação entre a estratégia competitiva da empresa central e os tipos de serviços prestados e nas práticas de emprego (associadas às relações interfirmas e à posição das empresas nos níveis da rede.Restructuring in the telecommunications industry has implied the construction of network business structures. In this article, patterns of relationship between companies and employment within the network led by CRT (Companhia Riograndense de Telecomunicações, the Telecommunications Company in the southern Brazilian State of Rio Grande do Sul are examined. The analysis encompasses eleven companies providing different kinds of services (switch units digitalization, cables and phone lines installation and located at several levels of the network ("third", "fourth", "fifth" and "sixth" companies. We come to the conclusion that there is a great variety within the relationship between companies (regarding the interaction between competitive strategy of the leading company and the kind of services provided and in employment practices (associated to intercompany relationships and the position of each company at the network levels.

  9. 47 CFR 54.502 - Supported telecommunications services.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Supported telecommunications services. 54.502 Section 54.502 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES... telecommunications services. For purposes of this subpart, supported telecommunications services provided...

  10. Quantum-Dot-Based Telecommunication-Wavelength Quantum Relay

    Science.gov (United States)

    Huwer, J.; Stevenson, R. M.; Skiba-Szymanska, J.; Ward, M. B.; Shields, A. J.; Felle, M.; Farrer, I.; Ritchie, D. A.; Penty, R. V.

    2017-08-01

    The development of quantum relays for long-haul and attack-proof quantum communication networks operating with weak coherent laser pulses requires entangled photon sources at telecommunication wavelengths with intrinsic single-photon emission for most practical implementations. Using a semiconductor quantum dot emitting entangled photon pairs in the telecommunication O band, we demonstrate a quantum relay fulfilling both of these conditions. The system achieves a maximum fidelity of 94.5% for implementation of a standard four-state protocol with input states generated by a laser. We further investigate robustness against frequency detuning of the narrow-band input and perform process tomography of the teleporter, revealing operation for arbitrary pure input states, with an average gate fidelity of 83.6%. The results highlight the potential of semiconductor light sources for compact and robust quantum-relay technology that is compatible with existing communication infrastructures.

  11. Space Telecommunications Radio System (STRS) Architecture. Part 1; Tutorial - Overview

    Science.gov (United States)

    Handler, Louis M.; Briones, Janette C.; Mortensen, Dale J.; Reinhart, Richard C.

    2012-01-01

    Space Telecommunications Radio System (STRS) Architecture Standard provides a NASA standard for software-defined radio. STRS is being demonstrated in the Space Communications and Navigation (SCaN) Testbed formerly known as Communications, Navigation and Networking Configurable Testbed (CoNNeCT). Ground station radios communicating the SCaN testbed are also being written to comply with the STRS architecture. The STRS Architecture Tutorial Overview presents a general introduction to the STRS architecture standard developed at the NASA Glenn Research Center (GRC), addresses frequently asked questions, and clarifies methods of implementing the standard. The STRS architecture should be used as a base for many of NASA s future telecommunications technologies. The presentation will provide a basic understanding of STRS.

  12. International Conference on Microelectronics, Electromagnetics and Telecommunications

    CERN Document Server

    Rao, N; Kumar, S; Raj, C; Rao, V; Sarma, G

    2016-01-01

    This volume contains 73 papers presented at ICMEET 2015: International Conference on Microelectronics, Electromagnetics and Telecommunications. The conference was held during 18 – 19 December, 2015 at Department of Electronics and Communication Engineering, GITAM Institute of Technology, GITAM University, Visakhapatnam, INDIA. This volume contains papers mainly focused on Antennas, Electromagnetics, Telecommunication Engineering and Low Power VLSI Design.

  13. Rural Areas in the New Telecommunications Era.

    Science.gov (United States)

    Stenberg, Peter L.; Rahman, Sania; Perrin, M. Bree; Johnson, Erica

    1997-01-01

    The Telecommunications Act of 1996 has provisions covering telephone service, telecommunications equipment manufacturing, cable television, radio and television broadcasting, and the Internet and on-line computer services. Most critical for rural areas are universal service provisions that ensure reasonably priced services to all regions and…

  14. Analysis of Synergetic Management in Telecommunication Enterprises

    Institute of Scientific and Technical Information of China (English)

    WANG Liang-yuan; LIU Yu-bi; ZHANG Ying-quan

    2004-01-01

    Based on the essence of Synergia, the status of synergetic effect of telecommunication enterprises in China is analyzed qualitatively and quantitatively. Some strategic suggestions, such as building the concept of synergia conscibusly, analysing the synergia of resources timely and building the synergetic environment of resources properly, are provided for the management of telecommunications enterprises in the paper.

  15. Multimedia Services in Open Distributed Telecommunications Environments

    NARCIS (Netherlands)

    Leydekkers, Peter

    1997-01-01

    In the majority of European countries a twofold change is taking place in the telecommunications marketplace. Firstly, the traditional monopolistic state owned telecommunications provider is being privatised and secondly, the market in which this newly privatised provider operates is being opened to

  16. Surety of the nation`s critical infrastructures: The challenge restructuring poses to the telecommunications sector

    Energy Technology Data Exchange (ETDEWEB)

    Cox, R.; Drennen, T.E.; Gilliom, L.; Harris, D.L.; Kunsman, D.M.; Skroch, M.J.

    1998-04-01

    The telecommunications sector plays a pivotal role in the system of increasingly connected and interdependent networks that make up national infrastructure. An assessment of the probable structure and function of the bit-moving industry in the twenty-first century must include issues associated with the surety of telecommunications. The term surety, as used here, means confidence in the acceptable behavior of a system in both intended and unintended circumstances. This paper outlines various engineering approaches to surety in systems, generally, and in the telecommunications infrastructure, specifically. It uses the experience and expectations of the telecommunications system of the US as an example of the global challenges. The paper examines the principal factors underlying the change to more distributed systems in this sector, assesses surety issues associated with these changes, and suggests several possible strategies for mitigation. It also studies the ramifications of what could happen if this sector became a target for those seeking to compromise a nation`s security and economic well being. Experts in this area generally agree that the U. S. telecommunications sector will eventually respond in a way that meets market demands for surety. Questions remain open, however, about confidence in the telecommunications sector and the nation`s infrastructure during unintended circumstances--such as those posed by information warfare or by cascading software failures. Resolution of these questions is complicated by the lack of clear accountability of the private and the public sectors for the surety of telecommunications.

  17. 47 CFR 36.171 - Property held for future telecommunications use-Account 2002; Telecommunications plant under...

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Property held for future telecommunications use-Account 2002; Telecommunications plant under construction-Account 2003; and Telecommunications plant adjustment-Account 2005. 36.171 Section 36.171 Telecommunication FEDERAL COMMUNICATIONS COMMISSION...

  18. Effect of Organizational Justice and Job Satisfaction on Organizational Effectiveness with the Moderating Role of Strategic Commitment

    Directory of Open Access Journals (Sweden)

    Atif Kafayat

    2014-12-01

    Full Text Available In this era of highly competitive business environment every organization strives to be successful, and for that an organization pays great emphasis on organizational justice and job satisfaction of its employees in order to be effective and successful. This study investigates the impacts of organizational justice and Job Satisfaction on organizational effectiveness with moderating variable of strategic commitment. The organizational justice is subdivided into three types: Distributive Justice, Procedural justice, Interactional justice while job satisfaction is also divided into three dimensions as well: Working Condition, Job security and Autonomy. This study is an effort to contribute in the body of knowledge and helpful for organizations to improve their effectiveness. The data for this study is collected from Telecommunication sector of Pakistan via questionnaire.

  19. 76 FR 72124 - Internet-Based Telecommunications Relay Service Numbering

    Science.gov (United States)

    2011-11-22

    ...] Internet-Based Telecommunications Relay Service Numbering AGENCY: Federal Communications Commission. ACTION... collection associated with the Commission's Internet- Based Telecommunications Relay Service Numbering... notice as an announcement of the effective date of the rules. See Internet-Based Telecommunications...

  20. 77 FR 75182 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-12-19

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... telecommunications policy. Agenda: The NSTAC members will receive an update on progress made to date by the...

  1. 76 FR 17424 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2011-03-29

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC... preparedness telecommunications policy. The NSTAC Chair, Mr. James Crowe, will call the meeting to order...

  2. 75 FR 16159 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-03-31

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee...: The President's National Security Telecommunications Advisory Committee (NSTAC) will hold its annual... and emergency preparedness telecommunications policy. Notice of this meeting is given under...

  3. 75 FR 3913 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-01-25

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee...: The President's National Security Telecommunications Advisory Committee (NSTAC) will be meeting by... telecommunications policy. Notice of this meeting is given under the Federal Advisory Committee Act (FACA),...

  4. 76 FR 52672 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2011-08-23

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... telecommunications policy. During the conference call, the NSTAC members will receive an update regarding...

  5. 78 FR 28237 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-05-14

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Advisory Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory... Telecommunications Advisory Committee, National Protection and Programs Directorate, Department of Homeland...

  6. 77 FR 44641 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-07-30

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... security and emergency preparedness telecommunications policy. Agenda: The NSTAC members will receive...

  7. 76 FR 72427 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2011-11-23

    ... Security Telecommunications Advisory Committee AGENCY: National Protection and Programs Directorate, DHS... President's National Security Telecommunications Advisory Committee (NSTAC) will meet on Thursday, December...) telecommunications policy. During the meeting, NSTAC members will receive feedback from the Department of...

  8. 78 FR 8160 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-02-05

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... telecommunications policy. Agenda: The NSTAC members will review and discuss the draft NSTAC Report to the...

  9. 78 FR 63232 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-10-23

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC... related to national security and emergency preparedness (NS/EP) telecommunications policy. During...

  10. 77 FR 65393 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-10-26

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... national security and emergency preparedness (NS/EP) telecommunications policy. Agenda: The NSTAC...

  11. 77 FR 6813 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-02-09

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... and emergency preparedness telecommunications policy. During the conference call, the NSTAC...

  12. 75 FR 29781 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-05-27

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee... meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC) will be... preparedness telecommunications policy. Notice of this meeting is given under the Federal Advisory...

  13. 76 FR 56091 - Expansion of 911 Access; Telecommunications Loan Program

    Science.gov (United States)

    2011-09-12

    ... Service 7 CFR Part 1735 RIN 0572-AC24 Expansion of 911 Access; Telecommunications Loan Program AGENCY... access and integrated emergency communications systems in rural areas for the Telecommunications Loan... Villano, Assistant Administrator, Telecommunications Program, USDA--Rural Utilities Service,...

  14. 78 FR 45255 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-07-26

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... preparedness (NS/EP) telecommunications policy. Agenda: The NSTAC members will deliberate and vote on the...

  15. 75 FR 13259 - Public Telecommunications Facilities Program: New Closing Date

    Science.gov (United States)

    2010-03-19

    ... National Telecommunications and Information Administration Docket No. 100305127-0127-01 Public Telecommunications Facilities Program: New Closing Date AGENCY: National Telecommunications and Information... to increase digital power levels of public radio stations. SUMMARY: The National...

  16. 76 FR 28443 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2011-05-17

    ... users from legacy Land Mobile Radio to 4G technologies for their mobile telecommunications needs. The... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Advisory Committee Meeting. SUMMARY: The President's National Security Telecommunications...

  17. Concerning Justice and Music Education

    Science.gov (United States)

    Jorgensen, Estelle R.

    2007-01-01

    In this paper, I explore matters concerning justice and music education. I briefly sketch responses to five interrelated questions: Why should music educators be interested in justice? What is meant by the term social justice and how is it distinguished from justice of other kinds? How do liberal views of humanity, particularly the preciousness of…

  18. On Universal Telecommunication Service and West China Development

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    This paper aims at studying the relationship between universal telecommunication service and West China development. It, firstly, introduces our country's demands for universal telecommunication service; secondly, analyses the demand of West China development for the universal telecommunication service; thirdly, depicts the development status of telecommunication industry of the west region; fourthly, points out the significance of universal telecommunication service to the west area; and lastly, brings forward the connotation of universal telecommunication service of west area.

  19. Telecommunications, health care, and legal liability

    Science.gov (United States)

    Levy, Chris

    1990-06-01

    Regulation of health care telecommunications is fragmented in Canada. Further neither the legislative nor the administrative nor the judicial processes have managed to respond successfully to the impact of telecommunications technology. The result is a legal environment that is necessarily speculative for both telecommunications service providers and health care personnel and facilities. Critical issues include ensuring confidentiality for sensitive patient records and health information liability of telecommunications service providers for inaccurate transmission liability of health care providers for use or non-use of telecommunications services. Limitation of legal liability for both telecommunications and health care service providers is likely to be most effective when based on contract but the creation of the necessary contracts is potentially unduly cumbersome both legally and practically. 1. CONSTITUTIONAL ASPECTS Telecommunications systems that are empowered to operate or connect cross provincial or international boundaries are subject to federal regulation bu the scheme is incomplete in respect of a system set up as a provincial agency. Health care on the other hand is very much a matter of provincial rather than federal authority as a matter of strict law but the fiscal strength of the federal government enables it to provide money to the provinces for financing health care and to4 use this as a device for securing compliance with certain federal standards. Nevertheless the political willingness of the federal health authorities to impose standards on the provinces

  20. THE CONCEPT OF CONSTRUCTION OF INFORMATION AND TELECOMMUNICATIONS NETWORK OF UNIVERSITY ON THE BASE OF STRUCTURAL-FUNCTIONAL ANALYSIS OF INFORMATION FLOWS Концепция построения информационно-телекоммуникационной сети ВУЗа на основе структурно-функционального анализа информационных потоков

    Directory of Open Access Journals (Sweden)

    Nasser A. A.

    2011-10-01

    Full Text Available This article proposes a unified conceptual approach to information and telecommunications network of the university to provide decision support processes aimed at effective use of its intellectual, scientific and professional potential

  1. Variations on Justice: Argentina's pre- and -post transitional justice and justice to-come

    DEFF Research Database (Denmark)

    Vaisman, Noa

    2015-01-01

    of these three kinds of justice and the changes they underwent in the past two decades. By offering a grounded analysis of justice in the pre- and the post-transitional justice phases in Argentina the paper contributes to ongoing debates about the meaning of justice and the possibility of reconciliation in post-conflict...

  2. Bio-inspired computation in telecommunications

    CERN Document Server

    Yang, Xin-She; Ting, TO

    2015-01-01

    Bio-inspired computation, especially those based on swarm intelligence, has become increasingly popular in the last decade. Bio-Inspired Computation in Telecommunications reviews the latest developments in bio-inspired computation from both theory and application as they relate to telecommunications and image processing, providing a complete resource that analyzes and discusses the latest and future trends in research directions. Written by recognized experts, this is a must-have guide for researchers, telecommunication engineers, computer scientists and PhD students.

  3. Business earth stations for telecommunications

    Science.gov (United States)

    Morgan, Walter L.; Rouffet, Denis

    The current status of technology for small commercial satellite-communication earth stations is reviewed on the basis of an application study undertaken in the U.S. and Europe. Chapters are devoted to an overview of satellite communication networks, microterminal design and hardware implementation, microterminal applications, the advantages of microterminals, typical users, services provided, the U.S. market for small earth stations, network operators, and the economics of satellite and terrestrial communication services. Consideration is given to the operation of a microterminal network, standards and regulations, technological factors, space-segment requirements, and insurance aspects. Diagrams, graphs, tables of numerical data, and a glossary of terms are provided.

  4. CIMTEL- Mining Algorithm for Big Data in Telecommunication

    Directory of Open Access Journals (Sweden)

    G.Nagarajan

    2015-10-01

    Full Text Available The field of data mining has flourished into research area of significant technological and social importance due to the advancement in technology. Mining frequent pattern or itemset from real data environment is a fundamental and essential problem in many data mining applications. The Apriori-inspired algorithms show good performance with sparse datasets such as market-basket data, where the frequent patterns are very short. However, in the area with dense datasets such as telecommunication, computational biology and census data, the performance of these algorithms degrades incredibly as there were many, long frequent patterns. The focus of this paper is to design a CPU- efficient algorithm CIMTEL for finding closed frequent calling patterns (long pattern in a telecommunication database. Due to the evaluation of next generation telecommunication network the amount of communication data’s rises in volume, vaiety and velocity (Bid Data. Thus algorithm provides an way for analysis the consumer for service provider. The Performance of this algorithm outperforms the former COLTEL , CHARM and EXPEDITE algorithm by an order of two for a worst case scenario. Also the performance analysis of this algorithm with former algorithms is determined.

  5. Lanthanide NIR luminescence for telecommunications, bioanalyses and solar energy conversion

    Institute of Scientific and Technical Information of China (English)

    Jean-Claude; G.; Bünzli; V.

    2010-01-01

    Present-day advanced technologies heavily rely on the exciting magnetic and spectroscopic properties of lanthanide ions. In particular, their ability to generate well-characterized and intense near-infrared (NIR) luminescence is exploited in any modern fiber-optic telecommunication network. In this feature article, we first summarize the whereabouts underlying the design of highly luminescent NIR molecular edifices and materials. We then focus on describing the main trends in three applications related to this spectral range: telecommunications, biosciences, and solar energy conversion. In telecommunications, efforts concentrate presently on getting easily processable polymer-based waveguide amplifiers. Upconversion nanophosphors emitting in the visible after NIR excitation are now ubiquitous in many bioanalyses while their application to bio-imaging is still in its early stages; however, highly sensitive NIR-NIR systems start to be at hand for both in vitro and in vivo imaging, as well as dual probes combining magnetic resonance and optical imaging. Finally, both silicon-based and dye-sensitized solar cells benefit from the downconversion and upconversion capabilities of lanthanide ions to harvest UV and NIR solar light and to boost the overall quantum efficiency of these next-generation devices.

  6. Like water for justice

    NARCIS (Netherlands)

    Joshi, D.

    2015-01-01

    The narrative of environmental justice is powerfully and passionately advocated by researchers, practitioners and activists across scale and space. Yet, because these struggles are multifaceted and pluralistic, rooted in complex, evolving “socio-material-political interminglings” the concept is

  7. Potential Environmental Justice Areas

    Data.gov (United States)

    U.S. Environmental Protection Agency — These data are from EJSCREEN, an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for...

  8. Gender and Climate Justice

    OpenAIRE

    Ana Agostino; Rosa Lizarde

    2012-01-01

    Ana Agostino and Rosa Lizarde explore the concept of climate justice as a rights approach to climate change. They propose that those in the South who are most affected by environmental changes need to receive justice from those in the North who are most responsible for climate change. They apply a gender lens to climate change, analyzing how women have been specifically hit by the phenomenon and how they are responding.

  9. JUSTICE FOR DISABLED PERSONS

    OpenAIRE

    Brčić Kuljiš, Marita

    2014-01-01

    Symbol of justice is a blindfolded lady. Blind to all diversity, it provides impartial law and equal treatment for all citizens. Their rationality, cooperativeness, autonomy and independence confirm their legal equality. However, what about the people who, for various reasons, do not meet those conditions? Can a political community apply the principles of (political) justice to them? Does it relate to them unfairly excluding them from political relationships or building relationships with the...

  10. Transitional justice and aid

    OpenAIRE

    Hellsten, Sirkku K.

    2012-01-01

    This paper examines the current security-governance-development nexus, something that is often also discussed under the concept of transitional justice (TJ). The paper analyses how the ambiguous, evolving and expanding nature of the concept of TJ affects the planning, coordination, evaluation and assessment of aid given to conflict ridden, post-conflict or (post) authoritarian societies in order to strengthen their democracy. Special attention is paid to gender justice. Illustrations are draw...

  11. Justice, fairness, and enhancement.

    Science.gov (United States)

    Savulescu, Julian

    2006-12-01

    This article begins by considering four traditional definitions of enhancement, then proposes a fifth, the Welfarist definition. It then considers fairness-based objections to enhancement, using the example of performance enhancement in sport. In so doing it defines sport and the values proper to it, surveys alternative theories of justice, considers the natural distribution of capabilities and disabilities, and draws a distinction between social, psychological, and biological enhancement. The article advances a new argument that justice requires enhancement.

  12. Coherently driven semiconductor quantum dot at a telecommunication wavelength.

    Science.gov (United States)

    Takagi, Hiroyuki; Nakaoka, Toshihiro; Watanabe, Katsuyuki; Kumagai, Naoto; Arakawa, Yasuhiko

    2008-09-01

    We proposed and demonstrate use of optical driving pulses at a telecommunication wavelength for exciton-based quantum gate operation. The exciton in a self-assembled quantum dot is coherently manipulated at 1.3 microm through Rabi oscillation. The telecom-band exciton-qubit system incorporates standard optical fibers and fiber optic devices. The coherent manipulation of the two-level system compatible with flexible and stable fiber network paves the way toward practical optical implementation of quantum information processing devices.

  13. 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.

  14. Environmental justice: a criminological perspective

    Science.gov (United States)

    Lynch, Michael J.; Stretesky, Paul B.; Long, Michael A.

    2015-08-01

    This article examines studies related to environmental justice in the criminological literature and from a criminological perspective. Criminologists have long been concerned with injustices in the criminal justice system related to the enforcement of criminal law. In the 1990s, following the emergence of green criminology, a handful of criminologists have drawn attention to environmental justice as an extension of more traditional criminological studies of justice and injustice. Relevant criminological studies of environmental justice are reviewed, and suggestions for future environmental justice research are offered.

  15. 47 CFR 32.2000 - Instructions for telecommunications plant accounts.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Instructions for telecommunications plant accounts. 32.2000 Section 32.2000 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES UNIFORM SYSTEM OF ACCOUNTS FOR TELECOMMUNICATIONS COMPANIES Instructions for...

  16. 47 CFR 32.2005 - Telecommunications plant adjustment.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Telecommunications plant adjustment. 32.2005 Section 32.2005 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES UNIFORM SYSTEM OF ACCOUNTS FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts §...

  17. 47 CFR 32.2003 - Telecommunications plant under construction.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Telecommunications plant under construction. 32.2003 Section 32.2003 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES UNIFORM SYSTEM OF ACCOUNTS FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance...

  18. 48 CFR 239.7405 - Delegated authority for telecommunications resources.

    Science.gov (United States)

    2010-10-01

    ... telecommunications resources. 239.7405 Section 239.7405 Federal Acquisition Regulations System DEFENSE ACQUISITION... TECHNOLOGY Telecommunications Services 239.7405 Delegated authority for telecommunications resources. The contracting officer may enter into a telecommunications service contract on a month-to-month basis or for...

  19. 47 CFR 32.2001 - Telecommunications plant in service.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Telecommunications plant in service. 32.2001 Section 32.2001 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES UNIFORM SYSTEM OF ACCOUNTS FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts §...

  20. 47 CFR 43.61 - Reports of international telecommunications traffic.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Reports of international telecommunications traffic. 43.61 Section 43.61 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON... Reports of international telecommunications traffic. (a) Each common carrier engaged in...

  1. 1Department of Telecommunication Scienc

    African Journals Online (AJOL)

    USER

    2016-12-19

    Dec 19, 2016 ... consumption models. The BTS ... outdoor temperature, heat flow through BTS shelter increases by 6.25%. ... network operators run considerable ... impact on continuous heating and ... is the transfer from the use of fossil fuel ... and natural gas plant consumes about ... volume of water flow in the dam (Pan et.

  2. Liberalisation in network based industries. An economic analysis by case studies of railway, telecommunication and energy utilities; Liberalisierung von Netzindustrien. Eine oekonomische Analyse am Beispiel der Eisenbahn, der Telekommunikation und der Leitungsgebundenen Energieversorgung

    Energy Technology Data Exchange (ETDEWEB)

    Schulze, A.

    2006-07-01

    The liberalisation of network based industries represents an economic problem, which raises on the one hand a multiplicity of theoretically unresolved questions and for which exist now on the other hand experiences in economic policy in Germany. The causes of the economic problems are not only to be found thereby in certain industry characteristics of the network based industries, but also in a missed special treatment of the network based economic sectors in the past by the economic policy. However, competition pushes in network based industries at borders, because the infrastructure necessary for the production of network based services typically represents an non-open to attack, natural monopoly in the hand of an established, vertically integrated supplier. From it extensive possibilities for the discrimination of competitors result, the competition political action need draw. It applies to analyze these in the available work and to discuss alternative solutions of the discrimination problem. (orig.)

  3. Special Justice for Peace: A Transitional Justice Model According to Modern Tendencies and Orientations of Law and Justice

    Directory of Open Access Journals (Sweden)

    Carlos Arturo Gómez Pavajeau

    2016-06-01

    Full Text Available The article analyses the constitutional implications of the peace agreement about Colombia’s armed conflict. It examines constitutional rules and international instruments about human rights, confronting the agreement with justice criteria in the national and international context, to underline the role of justice for the definitive solution of the conflict. By using the methodology of opposing concepts, it reviews the implications of formal justice and material justice, to establish the superiority of the last one and it’s relation with social justice; it analyses the differences between individual justice and global justice, to demonstrate the need to obtain an integral justice; it contrasts alternative justice and traditional justice, to propose an integrated justice; it explains that justice based upon the formal syllogism should be overcome by a justice based upon equity, to obtain a justice anchored in the Constitution, universal and concentrated in the human rights; it hypothesizes that justice supported in the atonement and retribution should be overcome by a justice that is preventive and restorative, that allows the construction of a justice focused in the future, without ignoring the past; it clarifies that justice with one jurisdiction and special justice are the components of a integrative transitional justice; it explains the presence of justice in different institutions with different functions and justice concentrated in one institution, although with different functions, because there is a search for an integrative justice; it exposes the search for a constitutional and political justice, discussing the vision of justice as a triumph of the force or the scandalous concession of benefits; it exalts that it is a justice in search of a positive discrimination, not a negative discrimination, overcoming the discussion between justice for the powerful and justice for the weak; finally, it considers that it is a justice

  4. Multitier specification for NSEP (National Security/Emergency Preparedness) enhancement of fiber-optic long-distance telecommunication networks. Volume 1. The multitier specification - an executive summary. Technical Information Bulletin

    Energy Technology Data Exchange (ETDEWEB)

    Peach, D.F.

    1987-12-01

    Fiber optic telecommunication systems are susceptible to both natural and man-made stress. National Security/Emergency Preparedness (NSEP) is a function of how durable these systems are in light of projected levels of stress. Emergency Preparedness in 1987 is not just a matter of--can they deliver food, water, energy and other essentials--but can they deliver the vital information necessary to maintain corporate function of our country. 'Communication stamina' is a function of 'probability of survival' when faced with stress. This report provides an overview of the enhancements to a fiber-optic communication system/installation that will increase durability. These enhancements are grouped, based on their value in protecting the system, such that a Multitier Specification is created that presents multiple levels of hardness. Mitigation of effects due to high-altitude electromagnetic pulse (HEMP) and gamma radiation, and protection from vandalism and weather events are discussed in the report. The report is presented in two volumes. Volume I presents the Multitier Specification in a format that is usable for management review. The attributes of specified physical parameters, and the levels of protection stated in Volume I, are discussed in more detail in Volume II.

  5. Organizational Justice in Schools: No Justice without Trust

    Science.gov (United States)

    Hoy, Wayne K.; Tarter, C. John

    2004-01-01

    The concept of organizational justice is defined, and, based on a review of the literature, ten principles of organizational justice are elaborated. Similarly, the elements of faculty trust are conceptualized and discussed. Then, a model of organizational justice and trust is proposed and tested using path analysis. The results underscore the…

  6. Some Research Aspects of Telecommunication Technologies' Development Process

    Directory of Open Access Journals (Sweden)

    G. S. Gaivoronska

    2014-04-01

    proposed curvature a method for receiving of the potential revenues estimation at the different stages of the telecommunication technologies’ life cycle is proposed. This formalization gives an opportunity to develop the methods for the estimation and prognosis of the technologies’ usage at the telecommunication networks in Ukraine.

  7. Engineering Tools and Validation Test Beds for New Telecommunication Satellite Multimedia Systems

    Science.gov (United States)

    Foix, V.; Taisant, J.-Ph.; Piau, P.; Thomasson, L.

    2002-01-01

    Satellite telecommunication and broadcasting systems have to adapt to the major evolutions introduced by the emergence of new multimedia services distributed by terrestrial networks. This major adaptation of satellite telecommunication systems implies the use of new technologies and standards, on-board satellites and within the telecommunication ground segment. The deeper interaction between space and ground infrastructures induced by these evolutions also leads to additional system complexity. The definition, design and end-to-end validation of these satellite networks require dedicated engineering tools and validation test beds running the major elements of the telecommunication mission, e.g. on-board and ground equipment implementing the various protocols and algorithms used in the system. Through two programmes called respectively "Atelier Télécom du Futur" and "Multimedia System Validation Test Beds", CNES has been developing since early 2000 an advanced simulation tool and complementary test beds to support engineering activities and cover most of the end-to-end validation needs of these new satellite telecommunication multimedia systems. This communication aims to present the technical objectives, the logic which has led to propose several complementary means, their main characteristics and development status. To end up, the first results provided by these tools and test beds are presented.

  8. toward a curriculum for justice

    African Journals Online (AJOL)

    profound justice; i.e. justice that is based on reasonableness and, more ... way to conduct a curriculum enquiry, since it acknowledges the crisis of ..... The principle of having a caring curriculum necessitates that we create learning-teaching.

  9. Empowering Energy Justice.

    Science.gov (United States)

    Finley-Brook, Mary; Holloman, Erica L

    2016-09-21

    The U.S. is experiencing unprecedented movement away from coal and, to a lesser degree, oil. Burdened low-income communities and people of color could experience health benefits from reductions in air and water pollution, yet these same groups could suffer harm if transitions lack broad public input or if policies prioritize elite or corporate interests. This paper highlights how U.S. energy transitions build from, and contribute to, environmental injustices. Energy justice requires not only ending disproportionate harm, it also entails involvement in the design of solutions and fair distribution of benefits, such as green jobs and clean air. To what extent does the confluence of state, civic, and market processes assure "just" transitions to clean, low-carbon energy production involving equitable distribution of costs, benefits, and decision-making power? To explore this question we assess trends with (1) fossil fuel divestment; (2) carbon taxes and social cost of carbon measurements; (3) cap-and-trade; (4) renewable energy; and (5) energy efficiency. Current research demonstrates opportunities and pitfalls in each area with mixed or partial energy justice consequences, leading to our call for greater attention to the specifics of distributive justice, procedural justice, and recognition justice in research, policy, and action. Illustrative energy transition case studies suggest the feasibility and benefit of empowering approaches, but also indicate there can be conflict between "green" and "just", as evident though stark inequities in clean energy initiatives. To identify positive pathways forward, we compile priorities for an energy justice research agenda based on interactive and participatory practices aligning advocacy, activism, and academics.

  10. Empowering Energy Justice

    Directory of Open Access Journals (Sweden)

    Mary Finley-Brook

    2016-09-01

    Full Text Available The U.S. is experiencing unprecedented movement away from coal and, to a lesser degree, oil. Burdened low-income communities and people of color could experience health benefits from reductions in air and water pollution, yet these same groups could suffer harm if transitions lack broad public input or if policies prioritize elite or corporate interests. This paper highlights how U.S. energy transitions build from, and contribute to, environmental injustices. Energy justice requires not only ending disproportionate harm, it also entails involvement in the design of solutions and fair distribution of benefits, such as green jobs and clean air. To what extent does the confluence of state, civic, and market processes assure “just” transitions to clean, low-carbon energy production involving equitable distribution of costs, benefits, and decision-making power? To explore this question we assess trends with (1 fossil fuel divestment; (2 carbon taxes and social cost of carbon measurements; (3 cap-and-trade; (4 renewable energy; and (5 energy efficiency. Current research demonstrates opportunities and pitfalls in each area with mixed or partial energy justice consequences, leading to our call for greater attention to the specifics of distributive justice, procedural justice, and recognition justice in research, policy, and action. Illustrative energy transition case studies suggest the feasibility and benefit of empowering approaches, but also indicate there can be conflict between “green” and “just”, as evident though stark inequities in clean energy initiatives. To identify positive pathways forward, we compile priorities for an energy justice research agenda based on interactive and participatory practices aligning advocacy, activism, and academics.

  11. Empowering Energy Justice

    Science.gov (United States)

    Finley-Brook, Mary; Holloman, Erica L.

    2016-01-01

    The U.S. is experiencing unprecedented movement away from coal and, to a lesser degree, oil. Burdened low-income communities and people of color could experience health benefits from reductions in air and water pollution, yet these same groups could suffer harm if transitions lack broad public input or if policies prioritize elite or corporate interests. This paper highlights how U.S. energy transitions build from, and contribute to, environmental injustices. Energy justice requires not only ending disproportionate harm, it also entails involvement in the design of solutions and fair distribution of benefits, such as green jobs and clean air. To what extent does the confluence of state, civic, and market processes assure “just” transitions to clean, low-carbon energy production involving equitable distribution of costs, benefits, and decision-making power? To explore this question we assess trends with (1) fossil fuel divestment; (2) carbon taxes and social cost of carbon measurements; (3) cap-and-trade; (4) renewable energy; and (5) energy efficiency. Current research demonstrates opportunities and pitfalls in each area with mixed or partial energy justice consequences, leading to our call for greater attention to the specifics of distributive justice, procedural justice, and recognition justice in research, policy, and action. Illustrative energy transition case studies suggest the feasibility and benefit of empowering approaches, but also indicate there can be conflict between “green” and “just”, as evident though stark inequities in clean energy initiatives. To identify positive pathways forward, we compile priorities for an energy justice research agenda based on interactive and participatory practices aligning advocacy, activism, and academics. PMID:27657101

  12. Ten tendencies of criminal justice

    Institute of Scientific and Technical Information of China (English)

    HE Jiahong

    2007-01-01

    A study of the global tendencies of criminal justice will help us design a more scientific and rational pathway for the reformation of existing criminal justice system of China. In the forthcoming several hundred years to come, theworld's criminal justice is to take on ten tendencies, that is, the tendency toward unity, civilization, science, rule of law, human rights, justice, efficiency,specialization, standardization and harmony.

  13. Childhood, Agency and Youth Justice

    Science.gov (United States)

    Smith, Roger

    2009-01-01

    This article seeks to reframe debates in the sphere of youth justice in order to move away from narrow and one-sided conceptualisations of young people who offend and appropriate forms of intervention with them. Whilst different positions have been adopted within the field of youth justice, largely around "justice" or "welfare" models of practice,…

  14. Juvenile Justice in Rural America.

    Science.gov (United States)

    Jankovic, Joanne, Ed.; And Others

    Producing a much-needed organized body of literature about rural juvenile justice, 14 papers (largely from the 1979 National Symposium on Rural Justice) are organized to identify current issues, identify forces causing changes in current systems, review programs responding to rural juvenile justice problems, and provide planning models to aid…

  15. English Only and Social Justice.

    Science.gov (United States)

    Corson, David

    1999-01-01

    Sketches the strengths and weaknesses of the approach to social justice offered by John Rawls, an approach that continues to dominate discussions about social justice and public policy. Contrasts that conception with a critically realistic approach to judging social justice, and argues that the latter is more respectful of minority group…

  16. Understanding Education for Social Justice

    Science.gov (United States)

    Hytten, Kathy; Bettez, Silvia C.

    2011-01-01

    It has become increasingly common for education scholars to claim a social justice orientation in their work. At the same time, education programs seem to be adding statements about the importance of social justice to their mission, and a growing number of teacher education programs are fundamentally oriented around a vision of social justice.…

  17. Corrective Justice vs. Social Justice in the Aftermath of War

    Directory of Open Access Journals (Sweden)

    Pablo Kalmanovitz

    2010-11-01

    Full Text Available How do we justify the practice of corrective justice for losses suffered during armed conflicts? This article seeks to show the force and relevance of this question, and to argue that, in cases of massively destructive wars, social justice should gain priority over corrective justice. Starting from a liberal Rawlsian conception of the relationship between corrective and social justice, it is argued that, paradoxically, the more destructive a war is, the less normative force corrective rights have and the higher priority policies of social justice, which guarantee basic rights to all citizens, should have.

  18. Simulating economic effects of disruptions in the telecommunications infrastructure.

    Energy Technology Data Exchange (ETDEWEB)

    Cox, Roger Gary; Barton, Dianne Catherine; Reinert, Rhonda K.; Eidson, Eric D.; Schoenwald, David Alan

    2004-01-01

    CommAspen is a new agent-based model for simulating the interdependent effects of market decisions and disruptions in the telecommunications infrastructure on other critical infrastructures in the U.S. economy such as banking and finance, and electric power. CommAspen extends and modifies the capabilities of Aspen-EE, an agent-based model previously developed by Sandia National Laboratories to analyze the interdependencies between the electric power system and other critical infrastructures. CommAspen has been tested on a series of scenarios in which the communications network has been disrupted, due to congestion and outages. Analysis of the scenario results indicates that communications networks simulated by the model behave as their counterparts do in the real world. Results also show that the model could be used to analyze the economic impact of communications congestion and outages.

  19. Basic functions of telecommunication channel elements for successful information transmission

    Directory of Open Access Journals (Sweden)

    Milorad S. Markagić

    2011-04-01

    Full Text Available The challenge in the field of multimedia telecommunications is an attempt to integrate texts, sound, images and videos coherently and consistently and to ensure simplicity and interactivity of operation. In order to make the proposed multimedia applications acceptable to end-users, the quality of transmission through the network and message presentation should have special attention. The main aims of this paper are the introduction to the communication channel with its basic elements, a detailed description of the information source and the presentation of possible approaches to the analysis of the telecommunication channel. Introduction In the age of mass application of various communication means, end-users of telecommunication channel elements rarely pay attention to the processes taking place in everyday communication and the elements presented in the channel. In order to discuss all the factors that influence the establishment and maintenance of the links, this paper will explain the basic elements of telecommunication channels. Source Every object that generates messages to be transferred to a recipient is called the source of the message. Directors, writers, speakers, books, newspapers, various instruments (thermometer, barometer, ammeter, etc., computers, a man himself - these are all sources of various messages. In relation to facilities that generate messages, there are different sources of messages. All the messages that they generate belong to discrete or continuous modes of messages. Discrete messages can be presented with element sets, where elements can be considered through different values of observed messages. Each text message of arbitrary length, for example, is made of a finite number of elements - symbols (letters, numbers, punctuation marks, from the set of symbols called the alphabet message source. Continuous messages can be presented with an infinite number of sets of elements where elements can have different values of

  20. Evolution of the environmental justice movement: activism, formalization and differentiation

    Science.gov (United States)

    Colsa Perez, Alejandro; Grafton, Bernadette; Mohai, Paul; Hardin, Rebecca; Hintzen, Katy; Orvis, Sara

    2015-10-01

    To complement a recent flush of research on transnational environmental justice movements, we sought a deeper organizational history of what we understand as the contemporary environmental justice movement in the United States. We thus conducted in-depth interviews with 31 prominent environmental justice activists, scholars, and community leaders across the US. Today’s environmental justice groups have transitioned from specific local efforts to broader national and global mandates, and more sophisticated political, technological, and activist strategies. One of the most significant transformations has been the number of groups adopting formal legal status, and emerging as registered environmental justice organizations (REJOs) within complex partnerships. This article focuses on the emergence of REJOs, and describes the respondents’ views about the implications of this for more local grassroots groups. It reveals a central irony animating work across groups in today’s movement: legal formalization of many environmental justice organizations has made the movement increasingly internally differentiated, dynamic, and networked, even as the passage of actual national laws on environmental justice has proven elusive.

  1. Military Justice Study Guide

    Science.gov (United States)

    1990-07-01

    Island Paralegal (Student) Command Division N/A TAD from/to until (give date) Naval Justice School, Newport, Rhode Island 3255 Whereabouts for next 30...If a lesser forum is desired, handle according to procedures set out elsewhere in this book. I IV-41 LEGAL OFFICER RELIEVING CHECKLIST A. GEN t . One

  2. Justice under uncertainty

    NARCIS (Netherlands)

    Cettolin, E.; Riedl, A.M.

    2013-01-01

    An important element for the public support of policies is their perceived justice. At the same time most policy choices have uncertain outcomes. We report the results of a first experiment investigating just allocations of resources when some recipients are exposed to uncertainty. Although, under c

  3. Reflexivity and social justice

    DEFF Research Database (Denmark)

    Maksimovic, Tijana; Jakobsen, Helle Nordentoft

    2017-01-01

    Career practitioners’ reflexive understanding of their professional role as change agents in career guidance and counselling practices has a major impact on how social justice can be achieved. This entitles an awareness of the way in which guidance and counselling practices are embedded in the co...

  4. Sociology of justice

    NARCIS (Netherlands)

    Liebig, S.; Sauer, C.G.

    2016-01-01

    In this chapter, we provide an overview of the empirical justice research done so far within sociology and aim to contribute to a clearer understanding of what constitutes a sociological approach. In order to do so, we first introduce the multilevel model of sociological explanation and derive four

  5. Journals and Justice.

    Science.gov (United States)

    Curzer, Howard J.

    1996-01-01

    Addresses the process of journal deselection from the point of view of justice and argues that when journal cuts are necessary, libraries should first, reduce all departments to core holdings; second, ask departments with expensive journals for permission to implement an efficiency principle; third, if refused permission, implement an equal…

  6. Rethinking Restorative Justice: When the Geographies of Crime and of Healing Justice Matter

    National Research Council Canada - National Science Library

    Jarem Sawatsky

    2007-01-01

    .... Despite the rhetoric that restorative justice is an alternative to the criminal justice system, this article demonstrates that restorative justice does not sufficiently challenge the underlying logic...

  7. 城市电力通信网“十二五”规划发展思考%Development of Urban Power Telecommunication Network Development during the 12th Five-Year Plan

    Institute of Scientific and Technical Information of China (English)

    王宇; 王燕

    2011-01-01

    文章从剖析通信业务需求的转变入手,提出了业务网、承载网建设在“十二五”期间应注意的技术问题,并从分析城市电力通信网的实际特点人手,阐述了在网络建设、专业管理等方面应重点关注的问题。%In this paper, the needs of the communication service are analyzed at first, then some technical problems of the business network and carrying network construction in the 12th Five-Year Plan period are presented, and some issues on network construction and management are illuminated.

  8. [Datanet 1 and the convergence of the computer and telecommunications].

    Science.gov (United States)

    de Wit, Onno

    2008-01-01

    This article describes the efforts of the Dutch national company for telecommunication, PTT, in introducing and developing a public network for data communication in the Netherlands in the last decades of the twentieth century. As early as the 1960s, private companies started to connect their local computers. As a result, small private computer networks started to emerge. As the state company offering general access to public services in telephony, the PTT strove to develop a public data network, accessible to every user and telephone subscriber. This ambition was realized with Datanet 1, the public data network which was officially opened in 1982. In the years that followed, Datanet became the dominant network for data transmission, despite competing efforts by private companies and computer manufacturers. The large-scale application of Datanet in public municipal administration serves as a case study for the development of data communication in practice, that shows that there was a gradual migration from X-25 to TCP/IP protocols. The article concludes by stating that the introduction and development of data transmission transformed the role of the PTT in Dutch society, brought new working practices, new services and new responsibilities, and resulted in a whole new phase in the history of the computer.

  9. Twenty-Five Years of Applications of the Modified Allan Variance in Telecommunications.

    Science.gov (United States)

    Bregni, Stefano

    2016-04-01

    The Modified Allan Variance (MAVAR) was originally defined in 1981 for measuring frequency stability in precision oscillators. Due to its outstanding accuracy in discriminating power-law noise, it attracted significant interest among telecommunications engineers since the early 1990s, when it was approved as a standard measure in international standards, redressed as Time Variance (TVAR), for specifying the time stability of network synchronization signals and of equipment clocks. A dozen years later, the usage of MAVAR was also introduced for Internet traffic analysis to estimate self-similarity and long-range dependence. Further, in this field, it demonstrated superior accuracy and sensitivity, better than most popular tools already in use. This paper surveys the last 25 years of progress in extending the field of application of the MAVAR in telecommunications. First, the rationale and principles of the MAVAR are briefly summarized. Its adaptation as TVAR for specification of timing stability is presented. The usage of MAVAR/TVAR in telecommunications standards is reviewed. Examples of measurements on real telecommunications equipment clocks are presented, providing an overview on their actual performance in terms of MAVAR. Moreover, applications of MAVAR to network traffic analysis are surveyed. The superior accuracy of MAVAR in estimating long-range dependence is emphasized by highlighting some remarkable practical examples of real network traffic analysis.

  10. Equality in the Framework of Justice

    OpenAIRE

    Aşik, Kübra

    2015-01-01

    This thesis assesses the relation between equality and justice by exploring and identifying the relation between equality and justice in Rawls's theory of justice, Sandel's communitarian account of Justice and Sen's capability approach. And these accounts of justice are evaluated from an egalitarian point of view. The main argument defended in the thesis is that justice requires equality. Accordingly, these three accounts of justice are evaluated by taking their understanding of equality into...

  11. Innovations in Telecommunications Technology: Implications for Education.

    Science.gov (United States)

    Korman, Frank

    A survey of literature and information sources disclosed the overall trends for telecommunications technology in education. This report describes both hardware and software aspects of these trends. Hardware trends include microminiaturization, increased message transmission capacity, interactive information flow, more complex and complete…

  12. A Communication Theory Perspective on Telecommunications Policy.

    Science.gov (United States)

    Lenert, Edward M.

    1998-01-01

    Uses contrasting models of communication to illuminate historical tensions between the policy goals of liberalization and democratization. Asserts that the present public-policy conception of telecommunications is more closely aligned with the transmission model than with a community-cultural-ritual model. (CR)

  13. How streamlining telecommunications can cut IT expense.

    Science.gov (United States)

    McIntyre, Greg

    2016-02-01

    Hospitals and health systems can save IT expenses by implementing more efficient processes in accordance with the principles of effective telecommunications expense management. This approach involves three primary steps: Inventory of existing infrastructure. Charge verification. Optimization of rates and design for continual improvement.

  14. Telecommunications: Electronic Tools for Chicago School Reform.

    Science.gov (United States)

    Walker, Beverly J.; And Others

    This study examined the feasibility and advisability of using telecommunications in the Chicago Public School (CPS) system to support school reform that has been mandated by recent legislation. Survey research yielded information on the current status of staff development and Local School Council (LSC) training, and provided the basis for…

  15. Telecommunications and Technology Infrastructure Program, 2013

    Science.gov (United States)

    California Community Colleges, Chancellor's Office, 2014

    2014-01-01

    This 16th annual report highlights up-to-date information on the programs supported through the Chancellor's Office Telecommunications and Technology Infrastructure Program (TTIP). To summarize 2012-13, one would describe it as a year of planning and preparation. The system-wide budget cuts of the past few years, reports of impacted classes, staff…

  16. Zhejiang Unicom: Modern Telecommunications Technology Leader

    Institute of Scientific and Technical Information of China (English)

    WUXINYI

    2004-01-01

    SINCE its founding,Zhejiang Unicom has been on a crusade to break the telecommunications monopoly and promote Zhejiang Province‘s reormand development of its telecom industry. This has had a beneficial affect on telecom businesses in general, promoting prosperity throughout the industry. As a result, users have more choices and enjoy firstclass service.

  17. Investigating the quality of video consultations performed using fourth generation (4G) mobile telecommunications.

    Science.gov (United States)

    Caffery, Liam J; Smith, Anthony C

    2015-09-01

    The use of fourth-generation (4G) mobile telecommunications to provide real-time video consultations were investigated in this study with the aims of determining if 4G is a suitable telecommunications technology; and secondly, to identify if variation in perceived audio and video quality were due to underlying network performance. Three patient end-points that used 4G Internet connections were evaluated. Consulting clinicians recorded their perception of audio and video quality using the International Telecommunications Union scales during clinics with these patient end-points. These scores were used to calculate a mean opinion score (MOS). The network performance metrics were obtained for each session and the relationships between these metrics and the session's quality scores were tested. Clinicians scored the quality of 50 hours of video consultations, involving 36 clinic sessions. The MOS for audio was 4.1 ± 0.62 and the MOS for video was 4.4 ± 0.22. Image impairment and effort to listen were also rated favourably. There was no correlation between audio or video quality and the network metrics of packet loss or jitter. These findings suggest that 4G networks are an appropriate telecommunication technology to deliver real-time video consultations. Variations in quality scores observed during this study were not explained by the packet loss and jitter in the underlying network. Before establishing a telemedicine service, the performance of the 4G network should be assessed at the location of the proposed service. This is due to known variability in performance of 4G networks. © The Author(s) 2015.

  18. Women, truth, justice and reparation in Colombia

    Directory of Open Access Journals (Sweden)

    María Eugenia Ibarra Melo

    2011-07-01

    Full Text Available This paper account for the main collective actions undertaken by two women networks in Colombia: Women’s Peace Route and the Colombian Women Initiative for Peace, during transition justice process and the implementation of the Justice and Peace Law (2004-2009. From a sociological approach to the political process and the gender category, this paper discusses how gender ideologies inform new ways of mobilization affecting discourses, purposes and repertoires of those claiming identities and defending human rights. The main conclusion here is that the feminist influence in redistribution and acknowledgement claims for victims from the armed conflict have encouraged collective actions that begin to modify their relationship to the State. This is proved by their achievements at Court and social acknowledgement victims have gained as social actors.

  19. Basins of Attraction for Generative Justice

    Science.gov (United States)

    Eglash, Ron; Garvey, Colin

    It has long been known that dynamic systems typically tend towards some state - an "attractor" - into which they finally settle. The introduction of chaos theory has modified our understanding of these attractors: we no longer think of the final "resting state" as necessarily being at rest. In this essay we consider the attractors of social ecologies: the networks of people, technologies and natural resources that makeup our built environments. Following the work of "communitarians" we posit that basins of attraction could be created for social ecologies that foster both environmental sustainability and social justice. We refer to this confluence as "generative justice"; a phrase which references both the "bottom-up", self-generating source of its adaptive meta stability, as well as its grounding in the ethics of egalitarian political theory.

  20. Transitional Justice versus Traditional Justice: The Basque Case

    Directory of Open Access Journals (Sweden)

    Joxerramon Bengoextea

    2013-03-01

    Full Text Available Transitional justice is often understood as a field or toolkit that facilitates the establishment of "justice" and rule of law in post-conflict societies. It is also the interdisciplinary understanding and study of that toolkit or field. This article explores to what extent transitional justice is a relevant way of understanding the transformations taking place in the Basque Country in the post-conflict situation created since the final ceasefire was declared by ETA on October 20, 2011. The article analyses different aspects of the field of transitional justice and the experience in Spain and the Basque Country. It underlines the prevalence of truth-seeking processes (over amnesia and of addressing violations and victims' suffering to conclude with the need to enhance the rule of law and traditional-individualised-justice and transitional justice.

  1. Case Study: Modelling Telecommunication Systems using Concurrent ML

    DEFF Research Database (Denmark)

    Hoffmann, Torben

    1998-01-01

    How can telecommunication hardware be modelled in CML. How are generalities and parallelism captured in CML.......How can telecommunication hardware be modelled in CML. How are generalities and parallelism captured in CML....

  2. 78 FR 29145 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-05-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection...'s National Security Telecommunications Advisory Committee (NSTAC). The document contained...

  3. Dentistry and distributive justice.

    Science.gov (United States)

    Dharamsi, Shafik; MacEntee, Michael I

    2002-07-01

    There is a growing concern in most countries to address the problem of inequities in health-care within the context of financial restraints on the public purse and the realities of health professions that are influenced strongly by the economic priorities of free-market economies. Dental professionals, like other health professionals, are well aware that the public expects oral health-related services that are effective, accessible, available and affordable. Yet, there is remarkably little reference in the literature to the theories of distributive justice that might offer guidance on how an equitable oral health service could be achieved. This paper considers three prominent theories of distributive justice--libertarianism, egalitarianism and contractarianism--within the controversial context of basic care and quality of life. The discussion leads towards a socially responsible, egalitarian perspective on prevention augmented by a social contract for curative care with the aim of providing maximum benefit to the least advantaged in society.

  4. About Network Telecom

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    NETWORK TELECOM magazine is the network & telecommunications industry's leading publication in China, specializing in the field of optic fiber communications, access network, mobile communications, CATV network,cabling system and data communications; and has established its reputation by a combination of authoritative editorial content, targeting a circulation of high quality covering the entire China region.

  5. About Network Telecom

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    NETWORK TELECOM magazine is the network & telecommunications industry's leading publication in China. specializing in the field of optic fiber communications, access network, mobile communications. CATV network,cabling system and data communications;and has established its reputation by a combination of authoritative editorial content, targeting a circulation of high quality covering the entire China region.

  6. Climate Change Justice

    OpenAIRE

    Sunstein, Cass R.; Posner, Eric A.

    2007-01-01

    Greenhouse gas reductions would cost some nations much more than others and benefit some nations far less than others. Significant reductions would impose especially large costs on the United States, and recent projections suggest that the United States has relatively less to lose from climate change. In these circumstances, what does justice require the United States to do? Many people believe that the United States is required to reduce its greenhouse gas emissions beyond the point that is ...

  7. Hume's Theory of Justice

    Directory of Open Access Journals (Sweden)

    Horacio Spector

    2014-01-01

    Full Text Available Hume developed an original and revolutionary theoretical paradigm for explaining the spontaneous emergence of the classic conventions of justice - stable possession, transference of property by consent, and the obligation to fulfill promises. In a scenario of scarce external resources, Hume's central idea is that the development of the rules of justice responds to a sense of common interest that progressively tames the destructiveness of natural self-love and expands the action of natural moral sentiments. By handling conceptual tools that anticipated game theory for centuries, Hume was able to break with rationalism, the natural law school, and Hobbes's contractarianism. Unlike natural moral sentiments, the sense of justice is valuable and reaches full strength within a general plan or system of actions. However, unlike game theory, Hume does not assume that people have transparent access to the their own motivations and the inner structure of the social world. In contrast, he blends ideas such as cognitive delusion, learning by experience and coordination to construct a theory that still deserves careful discussion, even though it resists classification under contemporary headings.

  8. Telecommunications Act of 1996. Public Law 104-104.

    Science.gov (United States)

    Congress of the U.S., Washington, DC.

    This document provides the text of the Telecommunications Act of 1996, legislation enacted "to promote competition and reduce regulation in order to secure lower prices and higher quality services for American telecommunications consumers and encourage the rapid deployment of new telecommunications technologies." The legislation contains…

  9. 76 FR 59551 - Internet-Based Telecommunications Relay Service Numbering

    Science.gov (United States)

    2011-09-27

    ...] Internet-Based Telecommunications Relay Service Numbering AGENCY: Federal Communications Commission. ACTION... to improve assignment of telephone numbers associated with Internet-based Telecommunications Relay... standard for Wired Telecommunications Carriers, which consists of all such firms having 1,500 or...

  10. Specification and validation of telecommunication services in ACPt

    NARCIS (Netherlands)

    Zhaorui, Y.

    1999-01-01

    This paper is concerned with the formal specification and validation of telecommunication services. Firstly, we provide a method to model the telecommunication system. Based on this result, we give the formal specification of telecommunication services and the detection of feature interactions,

  11. 31 CFR 545.508 - Transactions related to telecommunications authorized.

    Science.gov (United States)

    2010-07-01

    ... telecommunications authorized. 545.508 Section 545.508 Money and Finance: Treasury Regulations Relating to Money and... related to telecommunications authorized. All transactions ordinarily incident to the receipt or transmission of telecommunications involving the territory of Afghanistan controlled by the Taliban...

  12. 76 FR 18490 - Contributions to the Telecommunications Relay Service Fund

    Science.gov (United States)

    2011-04-04

    ... COMMISSION 47 CFR Parts 1 and 64 Contributions to the Telecommunications Relay Service Fund AGENCY: Federal...- interconnected VoIP service to participate in and contribute to the Telecommunications Relay Services (TRS) Fund... summary of the Commission's Contributions to the Telecommunications Relay Service Fund, Notice of...

  13. 31 CFR 500.571 - Transactions related to telecommunications authorized.

    Science.gov (United States)

    2010-07-01

    ... telecommunications authorized. 500.571 Section 500.571 Money and Finance: Treasury Regulations Relating to Money and... telecommunications authorized. All transactions of U.S. common carriers incident to the receipt or transmission of telecommunications involving North Korea are authorized. Note: Exports or reexports to North Korea of goods...

  14. 31 CFR 560.508 - Telecommunications and mail transactions authorized.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Telecommunications and mail... REGULATIONS Licenses, Authorizations and Statements of Licensing Policy § 560.508 Telecommunications and mail... telecommunications and mail between the United States and Iran are authorized. For purposes of this section, the...

  15. 31 CFR 585.513 - Transactions related to telecommunications authorized.

    Science.gov (United States)

    2010-07-01

    ... telecommunications authorized. 585.513 Section 585.513 Money and Finance: Treasury Regulations Relating to Money and... Transactions related to telecommunications authorized. (a) All transactions of U.S. common carriers with respect to the receipt and transmission of telecommunications involving the FRY (S&M) are...

  16. 7 CFR 1703.112 - Expedited telecommunications loans

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false Expedited telecommunications loans 1703.112 Section... § 1703.112 Expedited telecommunications loans RUS will expedite consideration and determination of an application submitted by an RUS telecommunications borrower for a loan under the Act or an advance of...

  17. 31 CFR 594.508 - Transactions related to telecommunications authorized.

    Science.gov (United States)

    2010-07-01

    ... telecommunications authorized. 594.508 Section 594.508 Money and Finance: Treasury Regulations Relating to Money and... related to telecommunications authorized. All transactions ordinarily incident to the receipt or transmission of telecommunications involving persons whose property or interests in property are...

  18. 76 FR 65965 - Contributions to the Telecommunications Relay Services Fund

    Science.gov (United States)

    2011-10-25

    ... COMMISSION 47 CFR Parts 1 and 64 Contributions to the Telecommunications Relay Services Fund AGENCY: Federal... contributing to the interstate Telecommunications Relay Services (TRS) Fund in a manner prescribed by... to the Telecommunications Relay Service Fund, Report and Order (Order), document FCC 11-150,...

  19. 77 FR 1039 - Internet-Based Telecommunications Relay Service Numbering

    Science.gov (United States)

    2012-01-09

    ... COMMISSION 47 CFR Part 64 Internet-Based Telecommunications Relay Service Numbering AGENCY: Federal... rules that govern access to toll-free numbers by users of Internet- based Telecommunications Relay... an impact on any rules of particular applicability. Subject: Internet-Based Telecommunications...

  20. 31 CFR 586.510 - Transactions related to telecommunications authorized.

    Science.gov (United States)

    2010-07-01

    ... telecommunications authorized. 586.510 Section 586.510 Money and Finance: Treasury Regulations Relating to Money and... Licensing Policy § 586.510 Transactions related to telecommunications authorized. All transactions with respect to the receipt and transmission of telecommunications involving the FRY (S&M) are authorized....

  1. Specification and validation of telecommunication services in ACPt

    NARCIS (Netherlands)

    Zhaorui, Y.

    2008-01-01

    This paper is concerned with the formal specification and validation of telecommunication services. Firstly, we provide a method to model the telecommunication system. Based on this result, we give the formal specification of telecommunication services and the detection of feature interactions, usin

  2. Wireless Networks

    OpenAIRE

    Samaka, Mohammed; Khan, Khaled M.D.

    2007-01-01

    Wireless communication is the fastest-growing field in the telecommunication industry. Wireless networks have grown significantly as an important segment of the communications industry. They have become popular networks with the potential to provide high-speed, high-quality information exchange between two or more portable devices without any wire or conductors. Wireless networks can simply be characterized as the technology that provides seamless access to information, anywhere, anyplace, an...

  3. Flew on Entitlements and Justice

    OpenAIRE

    Peña, Lorenzo

    1989-01-01

    In «Equality, yes, surely; but Justice?», Antony Flew argues that egalitarianism and collectivism are incompatible with the concept of justice, since the usual concept of justice is that of giving everyone his due (or his own). That concept is intrinsically backward-looking; you cannot assign everyone his own by gratuitously presupposing that nothing is his own and that a fresh start is to be made. As against such a view, I maintain that, in a fairly obvio...

  4. Three Liberal Theories of Justice

    OpenAIRE

    Jiří MACHÁČEK

    2013-01-01

    The mail goal of this thesis is to introduce the modern theory of liberal justice with a focus on distributive justice. In addition, the author addresses the issue of value neutrality in the liberal state and the concept of equality in liberal theory. The author presents the concept of "justice as fairness" described by liberal political philosopher John Rawls. Afterwards his concept is subjected to criticism of other contemporary liberal philosophers Robert Nozick and Ronald Dworkin. The aut...

  5. Telecommunication systems engineering. [Book on tracking, command, telemetry, data acquisition

    Science.gov (United States)

    Lindsey, W. C.; Simon, M. K.

    1973-01-01

    Telecommunication network concepts are discussed together with carrier-tracking loops employing the phase-lock principle, phase and Doppler measurements in two-way phase-coherent tracking systems, range measurements by phase-coherent techniques, and questions of phase-coherent detection with perfect reference signals and with noisy reference signals. The design of one-way and two-way phase-coherent communication systems is considered, giving attention to the optimal design of single-channel systems, the design of two-channel systems, and the design of multichannel systems. Other topics explored include the design and the performance of phase-coherent systems preceded by band-pass limiters, symbol synchronization and its effects on data detection, noncoherent communication over the Gaussian channel, and tracking loops with improved performance.

  6. Telecommunications Relay Support of the Mars Phoenix Lander Mission

    Science.gov (United States)

    Edwards, Charles D., Jr.; Erickson, James K.; Gladden, Roy E.; Guinn, Joseph R.; Ilott, Peter A.; Jai, Benhan; Johnston, Martin D.; Kornfeld, Richard P.; Martin-Mur, Tomas J.; McSmith, Gaylon W.; hide

    2010-01-01

    The Phoenix Lander, first of NASA's Mars Scout missions, arrived at the Red Planet on May 25, 2008. From the moment the lander separated from its interplanetary cruise stage shortly before entry, the spacecraft could no longer communicate directly with Earth, and was instead entirely dependent on UHF relay communications via an international network of orbiting Mars spacecraft, including NASA's 2001 Mars Odyssey (ODY) and Mars Reconnaissance Orbiter (MRO) spacecraft, as well as ESA's Mars Express (MEX) spacecraft. All three orbiters captured critical event telemetry and/or tracking data during Phoenix Entry, Descent and Landing. During the Phoenix surface mission, ODY and MRO provided command and telemetry services, far surpassing the original data return requirements. The availability of MEX as a backup relay asset enhanced the robustness of the surface relay plan. In addition to telecommunications services, Doppler tracking observables acquired on the UHF link yielded an accurate position for the Phoenix landing site.

  7. Telecommunications Relay Support of the Mars Phoenix Lander Mission

    Science.gov (United States)

    Edwards, Charles D., Jr.; Erickson, James K.; Gladden, Roy E.; Guinn, Joseph R.; Ilott, Peter A.; Jai, Benhan; Johnston, Martin D.; Kornfeld, Richard P.; Martin-Mur, Tomas J.; McSmith, Gaylon W.; Thomas, Reid C.; Varghese, Phil; Signori, Gina; Schmitz, Peter

    2010-01-01

    The Phoenix Lander, first of NASA's Mars Scout missions, arrived at the Red Planet on May 25, 2008. From the moment the lander separated from its interplanetary cruise stage shortly before entry, the spacecraft could no longer communicate directly with Earth, and was instead entirely dependent on UHF relay communications via an international network of orbiting Mars spacecraft, including NASA's 2001 Mars Odyssey (ODY) and Mars Reconnaissance Orbiter (MRO) spacecraft, as well as ESA's Mars Express (MEX) spacecraft. All three orbiters captured critical event telemetry and/or tracking data during Phoenix Entry, Descent and Landing. During the Phoenix surface mission, ODY and MRO provided command and telemetry services, far surpassing the original data return requirements. The availability of MEX as a backup relay asset enhanced the robustness of the surface relay plan. In addition to telecommunications services, Doppler tracking observables acquired on the UHF link yielded an accurate position for the Phoenix landing site.

  8. Determinants of Customers` Churn Decision in the Nigeria Telecommunication Industry: An Analytic Hierarchy Process Approach

    Directory of Open Access Journals (Sweden)

    Sulaimon Olanrewaju Adebiyi

    2015-10-01

    Full Text Available This paper describes the application of Analytic Hierarchy Process (AHP for unraveling customers’ motivation for churn of telecommunication network in Nigeria. By identifying, modeling and measuring of customers` churn motivations across four mobile telecommunication service providers in Nigeria. AHP was used to design a hierarchical model of seven criteria for customers` churning of network and investigates the relative priorities of the criteria through a pairwise comparison. The questionnaire were administered through convenient sampling to 480 mobile telecommunication customers and was completed and returned by 438 mobile phone subscribers in Lagos state, Nigeria, but only 408 copies were useful for the analysis of this study. The result shows that six out of the seven criteria have weight above 10% in their individual contribution to motivating customer churn behavior in the Nigeria telecommunication industry. The inefficient data/ internet plan criterion has the highest weight of 18.81% relative to the churn decision. Thus, AHP effectively supported modeling and analyzing subscribers` motivation toward good marketing decision for both the individual and the organization. It helps in developing an analytic and intelligible framework of decision-making on complex problem of customer churn in an emerging market like Nigeria

  9. Telecommunications networks, home integrated systems and remote control applications; Reseaux de telecommunications, domotique et teleaction

    Energy Technology Data Exchange (ETDEWEB)

    Cregut, F.; Treheux, M.

    1996-12-31

    Energy savings in residential sector can be performed by home integrated control systems. Remote controlled interfaces allow electric appliances consumption matching effective needs. Nevertheless, the uses of those techniques are stagnating since several years. The first reason is an awkward human factors engineering, that is now improving. The second reason is an lack of definition of the needs, that lead to commercialization problems. (D.L.)

  10. Social justice in pandemic preparedness.

    Science.gov (United States)

    DeBruin, Debra; Liaschenko, Joan; Marshall, Mary Faith

    2012-04-01

    Pandemic influenza planning in the United States violates the demands of social justice in 2 fundamental respects: it embraces the neutrality of procedural justice at the expense of more substantive concern with health disparities, thus perpetuating a predictable and preventable social injustice, and it fails to move beyond lament to practical planning for alleviating barriers to accessing care. A pragmatic social justice approach, addressing both health disparities and access barriers, should inform pandemic preparedness. Achieving social justice goals in pandemic response is challenging, but strategies are available to overcome the obstacles. The public engagement process of one state's pandemic ethics project influenced the development of these strategies.

  11. Justice blocks and predictability of US Supreme Court votes

    CERN Document Server

    Guimera, Roger; 10.1371/journal.pone.0027188

    2012-01-01

    Successful attempts to predict judges' votes shed light into how legal decisions are made and, ultimately, into the behavior and evolution of the judiciary. Here, we investigate to what extent it is possible to make predictions of a justice's vote based on the other justices' votes in the same case. For our predictions, we use models and methods that have been developed to uncover hidden associations between actors in complex social networks. We show that these methods are more accurate at predicting justice's votes than forecasts made by legal experts and by algorithms that take into consideration the content of the cases. We argue that, within our framework, high predictability is a quantitative proxy for stable justice (and case) blocks, which probably reflect stable a priori attitudes toward the law. We find that U. S. Supreme Court justice votes are more predictable than one would expect from an ideal court composed of perfectly independent justices. Deviations from ideal behavior are most apparent in di...

  12. Supplier selection in the Malaysian telecommunications industry

    OpenAIRE

    Abdul Rahim, Suzari

    2013-01-01

    This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University. Supplier selection plays an important role in any organisation. This study investigates and examines supplier selection criteria and the impacts on buying firm performance; specifically focusing on the telecommunications industry in Malaysia. Previous studies in this area have focussed on the criteria such as quality, price, delivery, supplier relationship management and decision making tools...

  13. Worldwide Report, Telecommunications Policy, Research and Development.

    Science.gov (United States)

    2007-11-02

    84) 56 Briefs Thomson-Telecommunications Holding Company Created 59 Cable Television for Lyon 59 TRANSPAC User Statistics 60 - c - WORLDWIDE...submarine cable, similar to the one between Madras and Penang . Through the Madras, Penang circuit, direct diall- ing facilities would be made available...Text] [Paris AGENCE FRANCE PRESSE SCIENCES in French, No 387, 19 Jan 84 p 29] 12413 59 TRANSPAC USER STATISTICS —TRANSPAC, the French national

  14. Soliton molecules for advanced optical telecommunications

    Science.gov (United States)

    Mitschke, Fedor; Hause, Alexander; Mahnke, Christoph

    2016-11-01

    Recent developments in the technology of optical telecommunications are pushed forward by the rapidly growing demand for data-carrying capacity. Current approaches are discussed; most lines of investigation are limited to the linear (i.e. low power) regime. It is shown how this restriction poses a limit for further evolution. If, on the other hand, the nonlinear regime is entered, recent developments about soliton molecules offer a possibility to advance further.

  15. 77 FR 53249 - Meeting of the International Telecommunication Advisory Committee (ITAC)

    Science.gov (United States)

    2012-08-31

    ... Meeting of the International Telecommunication Advisory Committee (ITAC) SUMMARY: This notice announces a meeting of the International Telecommunication Advisory Committees (ITAC) to review status of preparations for the World Conference on International Telecommunication and the World Telecommunication...

  16. 75 FR 10860 - Announcement of a Meeting of the International Telecommunication Advisory Committee

    Science.gov (United States)

    2010-03-09

    ... Announcement of a Meeting of the International Telecommunication Advisory Committee SUMMARY: This notice announces a meeting of the International Telecommunication Advisory Committee (ITAC) to prepare for an April 19- 30 meeting of International Telecommunication Union (ITU) Telecommunication Standardization...

  17. 76 FR 48939 - Announcement of Meeting of the International Telecommunication Advisory Committee

    Science.gov (United States)

    2011-08-09

    ... Announcement of Meeting of the International Telecommunication Advisory Committee SUMMARY: This notice announces a meeting of the International Telecommunication Advisory Subcommittees (ITAC) on August 22, 2011... advice from the telecommunications industry on: (a) The consultation of International Telecommunication...

  18. 76 FR 1663 - Announcement of a Meeting of the International Telecommunication Advisory Committee

    Science.gov (United States)

    2011-01-11

    ... Announcement of a Meeting of the International Telecommunication Advisory Committee SUMMARY: This notice announces a meeting of the International Telecommunication Advisory Committee (ITAC) to prepare for the International Telecommunication Union (ITU) World Conference on International Telecommunications, as well as for...

  19. 75 FR 1755 - Public Telecommunications Facilities Program: Notice of Availability of Funds

    Science.gov (United States)

    2010-01-13

    ... National Telecommunications and Information Administration Public Telecommunications Facilities Program: Notice of Availability of Funds AGENCY: National Telecommunications and Information Administration, U.S.... SUMMARY: On December 2, 2009, the National Telecommunications and Information Administration...

  20. Medical device integration using mobile telecommunications infrastructure.

    Science.gov (United States)

    Moorman, Bridget A; Cockle, Richard A

    2013-01-01

    Financial pressures, an aging population, and a rising number of patients with chronic diseases, have encouraged the use of remote monitoring technologies. This usually entails at least one physiological parameter measurement for a clinician. Mobile telecommunication technologies lend themselves to this functionality, and in some cases, avoid some of the issues encountered with device integration. Moreover, the inherent characteristics of the mobile telecommunications infrastructure allow a coupling of business and clinical functions that were not possible before. Table I compares and contrasts some key aspect of device integration in and out of a healthcare facility. An HTM professional may be part of the team that acquires and/or manages a system using a mobile telecommunications technology. It is important for HTM professionals to ensure the data is in a standard format so that the interfaces across this system don't become brittle and break easily if one part changes. Moreover, the security and safety considerations of the system and the data should be a primary consideration in and y purchase, with attention given to the proper environmental and encryption mechanisms. Clinical engineers and other HTM professionals are unique in that they understand the patient/clinician/device interface and the need to ensure its safety and effectiveness regardless of geographical environment.

  1. Student Perceptions of Social Justice and Social Justice Activities

    Science.gov (United States)

    Torres-Harding, Susan R.; Steele, Cheronda; Schulz, Erica; Taha, Farah; Pico, Chantal

    2014-01-01

    Encouraging students to engage in activities that actively seek to promote social justice is a goal of many educators. This study analyzed college student perceptions around social justice and related activities in a medium-sized, urban university in the United States. Students' open-ended responses to questions assessing their perceptions of…

  2. Student Perceptions of Social Justice and Social Justice Activities

    Science.gov (United States)

    Torres-Harding, Susan R.; Steele, Cheronda; Schulz, Erica; Taha, Farah; Pico, Chantal

    2014-01-01

    Encouraging students to engage in activities that actively seek to promote social justice is a goal of many educators. This study analyzed college student perceptions around social justice and related activities in a medium-sized, urban university in the United States. Students' open-ended responses to questions assessing their perceptions of…

  3. Justice and Feelings: Toward a New Era in Justice Research

    NARCIS (Netherlands)

    Cremer, D. de; Bos, K. van den

    2007-01-01

    In this special issue, the relationship between feelings and justice and its consequences are highlighted. Five articles discuss the role that affect, feelings, and emotions play in justice processes across a variety of social settings. In the present introductory article, the position of past and p

  4. The role of overall justice judgments in organizational justice research: a test of mediation.

    Science.gov (United States)

    Ambrose, Maureen L; Schminke, Marshall

    2009-03-01

    Organizational justice research traditionally focuses on the unique predictability of different types of justice (distributive, procedural, and interactional) and the relative importance of these types of justice on outcome variables. Recently, researchers have suggested shifting from this focus on specific types of justice to a consideration of overall justice. The authors hypothesize that overall justice judgments mediate the relationship between specific justice facets and outcomes. They present 2 studies to test this hypothesis. Study 1 demonstrates that overall justice judgments mediate the relationship between specific justice judgments and employee attitudes. Study 2 demonstrates the mediating relationship holds for supervisor ratings of employee behavior. Implications for research on organizational justice are discussed.

  5. Health Law as Social Justice.

    Science.gov (United States)

    Wiley, Lindsay F

    2014-01-01

    Health law is in the midst of a dramatic transformation. From a relatively narrow discipline focused on regulating relationships among individual patients, health care providers, and third-party payers, it is expanding into a far broader field with a burgeoning commitment to access to health care and assurance of healthy living conditions as matters of social justice. Through a series of incremental reform efforts stretching back decades before the Affordable Care Act and encompassing public health law as well as the law of health care financing and delivery, reducing health disparities has become a central focus of American health law and policy. This Article labels, describes, and furthers a nascent "health justice" movement by examining what it means to view health law as an instrument of social justice. Drawing on the experiences of the reproductive justice, environmental justice, and food justice movements, and on the writings of political philosophers and ethicists on health justice, I propose that health justice offers an alternative to the market competition and patient rights paradigms that currently dominate health law scholarship, advocacy, and reform. I then examine the role of law in reducing health disparities through the health justice lens. I argue that the nascent health justice framework suggests three commitments for the use of law to reduce health disparities. First, to a broader inquiry that views access to health care as one among many social determinants of health deserving of public attention and resources. Second, to probing inquiry into the effects of class, racial, and other forms of social and cultural bias on the design and implementation of measures to reduce health disparities. And third, to collective action grounded in community engagement and participatory parity. In exploring these commitments, I highlight tensions within the social justice framework and between the social justice framework and the nascent health justice movement

  6. The Social Justice, Peace, and Environmental Education Standards Project

    Science.gov (United States)

    Andrzejewski, Julie

    2005-01-01

    Inspired by the Alaska Native Knowledge Network's "Standards for Culturally Responsive Schools," members of fourteen social justice, peace, and environmental education (SJPEE) special interest groups (SIGs) from the American Educational Research Association (AERA) and several other prominent organizations have been involved in drafting SJPEE…

  7. Justice in Cyberwar

    Directory of Open Access Journals (Sweden)

    Klaus-Gerd Giesen

    2014-06-01

    Full Text Available http://dx.doi.org/10.5007/1677-2954.2014v13n1p27The text aims at providing an ethical framework for cyber warfare. The latter is changing our understanding of war (and peace as well as the relationship between the human being and the machine. Rejecting Heidegger’s fatalistic stance towards technology it is argued that norms of international justice should be formulated in order to attempt to regulate this new military dimension. The potentially considerable destructive force of cyberweapon systems for civilian infrastructure is emphasized, especially as far as the « Internet of Things » (all physical objects connected to the Internet is concerned. In a foreseeable future cyberwar operations may kill many civilians. After defining the concept of cyberwar and explainig why it is a new and important moral issue, the paper heavily relies on just war ethics in order to reach norms for justice in cyberwar. It is shown that Immanuel Kant has not just been a philosopher of (perpetual peace, but (in the Metaphysics of Morals also a just war theorist who developed his normative framework in a fruitful dialog with Aquinas (against Vitoria and Suarez. His norms for jus ad bellum and jus in bello are carefully and critically applied to cyberwar. However, Kant’s major innovation in just war theory has been the concept of jus post bellum. The paper demonstrates how important this dimension of justice is in cyberwar, and how to apply it, including through recommendations for a treaty in international law.

  8. What is Graphic Justice?

    Directory of Open Access Journals (Sweden)

    Thomas Giddens

    2016-12-01

    Full Text Available This article reproduces a poster presented at the Socio-Legal Studies ­Association annual conference, 5–7 April 2016 at Lancaster University, UK. The poster outlines the emerging study of the legal and jurisprudential dimensions of comics. Seeking to answer the question ‘what is graphic justice?’, the poster highlights the variety of potential topics, questions, concerns, issues, and intersections that the crossover between law and comics might encounter. A transcript of the poster’s text is provided for easier reuse, as well as a list of references and suggested readings.

  9. Biomedical enhancements as justice.

    Science.gov (United States)

    Nam, Jeesoo

    2015-02-01

    Biomedical enhancements, the applications of medical technology to make better those who are neither ill nor deficient, have made great strides in the past few decades. Using Amartya Sen's capability approach as my framework, I argue in this article that far from being simply permissible, we have a prima facie moral obligation to use these new developments for the end goal of promoting social justice. In terms of both range and magnitude, the use of biomedical enhancements will mark a radical advance in how we compensate the most disadvantaged members of society.

  10. Social Justice in Teacher Education.

    Science.gov (United States)

    Guyton, Edith

    2000-01-01

    Education is a moral enterprise and a right rather than a privilege. Teacher education should develop teachers' awareness of and concern for social justice and their capacity to teach democracy and teach democratically. The concept of social justice should guide curriculum development and implementation. (SK)

  11. Spheres of Justice within Schools

    DEFF Research Database (Denmark)

    Sabbagh, Clara; Resh, Nura; Mor, Michal;

    2006-01-01

    This article argues that there are distinct spheres of justice within education and examines a range of justice norms and distribution rules that characterize the daily life of schools and classrooms. Moving from the macro to micro level, we identify the following five areas: the right to education...

  12. Social Justice and School Psychology

    Science.gov (United States)

    Nastasi, Bonnie K.

    2008-01-01

    Despite attention in other social sciences and within other areas of psychology, social justice has received minimal attention in school psychology literature. The two studies by Shriberg et al. (2008) and McCabe and Rubinson (2008) represent significant developments in exploring school psychology's commitment to social justice. In this…

  13. Educational Administration and Social Justice

    Science.gov (United States)

    Bates, Richard

    2006-01-01

    After observing that texts in educational administration have largely failed to address the problem of the justice and fairness of social and educational arrangements, this article goes on to examine the necessary relationships between ethical leadership, community and the notion of social justice. Such relationships are argued to be necessarily…

  14. Juvenile Justice and Substance Use

    Science.gov (United States)

    Chassin, Laurie

    2008-01-01

    Laurie Chassin focuses on the elevated prevalence of substance use disorders among young offenders in the juvenile justice system and on efforts by the justice system to provide treatment for these disorders. She emphasizes the importance of diagnosing and treating these disorders, which are linked both with continued offending and with a broad…

  15. SOCIAL WELFARE AND RESTORATIVE JUSTICE

    Directory of Open Access Journals (Sweden)

    Darrell Fox

    2009-09-01

    Full Text Available This paper explores the links and connections between social work and restorative justice. After a brief description of social work, restorative justice and family group conferencing, I will explore some the complementary theoretical links and practice applications, critically examining the potential implications and opportunities for social work practitioners and academics in relation to practice.

  16. Social Justice Language Teacher Education

    Science.gov (United States)

    Hawkins, Margaret R.

    2011-01-01

    Social justice language teacher education conceptualizes language teacher education as responding to social and societal inequities that result in unequal access to educational and life opportunities. In this volume authors articulate a global view of Social Justice Language Teacher Education, with authors from 7 countries offering a theorized…

  17. Experiential Social Justice Judgment Processes

    NARCIS (Netherlands)

    Maas, M.

    2008-01-01

    Social justice can be thought of as an idea that exists within the minds of individuals and that concerns issues like what is right and wrong, what ought to be or not to be, and what is fair or unfair. This subjective quality of the justice judgment process makes it rather unpredictable how people w

  18. Social Justice in Teacher Education.

    Science.gov (United States)

    Guyton, Edith

    2000-01-01

    Education is a moral enterprise and a right rather than a privilege. Teacher education should develop teachers' awareness of and concern for social justice and their capacity to teach democracy and teach democratically. The concept of social justice should guide curriculum development and implementation. (SK)

  19. A Study on Management Techniques of Power Telecommunication System by Reliability Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Lee, B.K.; Lee, B.S.; Woy, Y.H.; Oh, M.T.; Shin, M.T.; Kwan, O.G. [Korea Electric Power Corp. (KEPCO), Taejon (Korea, Republic of). Research Center; Kim, K.H.; Kim, Y.H.; Lee, W.T.; Park, Y.H.; Lee, J.J.; Park, H.S.; Choi, M.C.; Kim, J. [Korea Electrotechnology Research Inst., Changwon (Korea, Republic of)

    1994-12-31

    Power telecommunication network is being increased rapidly in that expansion of power facilities according to the growth of electric power supply. The requirement of power facility and office automation and importance of communication services make it to complex and confusing to operate. And, for the sake of correspond to the change of power telecommunication network, effective operation and management is called for urgently. Therefore, the object of this study is to establish total reliability analysis system based on dependability, maintainability, cost effectiveness and replenishment for keep up reasonable reliability, support economical maintenance and reasonable planning of facility investment. And it will make effective management and administration system and schemes for total reliability improvement. (author). 44 refs., figs.

  20. Analysis And Mathematical Modeling Of Consumer Behavior In Mobile Telecommunications Industry

    Directory of Open Access Journals (Sweden)

    Saranga Gunasekara

    2015-06-01

    Full Text Available Abstract The mobile telecommunications industry is capital intensive by nature. With the rapid advancement of technology and changing consumer behaviors mobile network operators has had to adapt their product and service portfolio in quick succession. The main implication of the need for high capital investments is the risk associated with the investment. Therefore it is essential that mobile telcos follow up technological investments with the correct service provisioning to the customers. This requires a thorough understanding of the behavior of the consumers. Through this paper the author attempts to identify evaluate and quantify the effects of a number of traits of consumers that determine the consumer preference to a particular mobile network brand. The author also provides recommendations on strategy formulation. The evaluation has been carried out in the context of the Sri Lankan Mobile Telecommunications Industry.

  1. Comparative Supreme Justice

    Directory of Open Access Journals (Sweden)

    Ditlev Tamm

    2011-12-01

    Full Text Available This article deals with the great variety of Supreme Courts in the world today and presents some selected courts. Supreme Courts are found in most countries both as only apex courts or in a courts’ system where also supreme administrative courts or constitutional courts are found. The starting point is the variation of supreme justice in the Nordic countries where one apex court is the system of Denmark and Norway whereas administrative courts are found in Sweden and Finland. Constitutional courts stem from the European tradition and are most abundant in Europe and in countries with a civil law system but especially in Africa they are also found in common law countries. Mexico is mentioned as a specific example of a Supreme Court that has taken upon itself to be a main player in the endeavour to communicate the law to a general audience. The article is a presentation with samples of what is going to be a project on comparative supreme justice in which the position of supreme courts in the various states, the recruitment scheme and competence of the courts and other such factors will be analyzed on a global basis.

  2. Proposition of Model for CSIRT: Case Study of Telecommunication Company in a Province of Iran

    Directory of Open Access Journals (Sweden)

    Ali Naseri

    2012-01-01

    Full Text Available Attack to software, network and system is cause of computer security incidents. Computer Security Incident Response Capability (CSIRC prevent from attacks by responding, predictive and safety quality management services. Computer Security Incident Response Team (CSIRT provides these services. In this paper, modeling is proposed for deployment of CSIRT and structure for providing services is described. This model is implemented in a case study in a telecommunication company in a province of Iran and results are expressed.

  3. Impedance matching and DC-DC converter designs for tunable radio frequency based mobile telecommunication systems

    OpenAIRE

    Wong, Yan Chiew

    2014-01-01

    Tunability and adaptability for radio frequency (RF) front-ends are highly desirable because they not only enhance functionality and performance but also reduce the circuit size and cost. This thesis presents a number of novel design strategies in DC-DC converters, impedance networks and adaptive algorithms for tunable and adaptable RF based mobile telecommunication systems. Specifically, the studies are divided into three major directions: (a) high voltage switch controller ba...

  4. Justice blocks and predictability of U.S. Supreme Court votes.

    Directory of Open Access Journals (Sweden)

    Roger Guimerà

    Full Text Available Successful attempts to predict judges' votes shed light into how legal decisions are made and, ultimately, into the behavior and evolution of the judiciary. Here, we investigate to what extent it is possible to make predictions of a justice's vote based on the other justices' votes in the same case. For our predictions, we use models and methods that have been developed to uncover hidden associations between actors in complex social networks. We show that these methods are more accurate at predicting justice's votes than forecasts made by legal experts and by algorithms that take into consideration the content of the cases. We argue that, within our framework, high predictability is a quantitative proxy for stable justice (and case blocks, which probably reflect stable a priori attitudes toward the law. We find that U.S. Supreme Court justice votes are more predictable than one would expect from an ideal court composed of perfectly independent justices. Deviations from ideal behavior are most apparent in divided 5-4 decisions, where justice blocks seem to be most stable. Moreover, we find evidence that justice predictability decreased during the 50-year period spanning from the Warren Court to the Rehnquist Court, and that aggregate court predictability has been significantly lower during Democratic presidencies. More broadly, our results show that it is possible to use methods developed for the analysis of complex social networks to quantitatively investigate historical questions related to political decision-making.

  5. Key enablers for user-centric advertising across next-generation networks

    CERN Document Server

    Simoes, J

    2012-01-01

    This new book provides a fascinating overview of this topic for telecommunications engineers, computer scientists, network design engineers, marketing professionals and other researchers working in the web and telecommunication industries.

  6. Silicon photonics for telecommunications and biomedicine

    CERN Document Server

    Fathpour, Sasan

    2011-01-01

    Given silicon's versatile material properties, use of low-cost silicon photonics continues to move beyond light-speed data transmission through fiber-optic cables and computer chips. Its application has also evolved from the device to the integrated-system level. A timely overview of this impressive growth, Silicon Photonics for Telecommunications and Biomedicine summarizes state-of-the-art developments in a wide range of areas, including optical communications, wireless technologies, and biomedical applications of silicon photonics. With contributions from world experts, this reference guides

  7. Strategic organization of it and telecommunication services

    Directory of Open Access Journals (Sweden)

    Braduţan, S.

    2012-01-01

    Full Text Available The accelerated development of the world services trade fostered the concerns of marketing theorists and practitioners regarding the development of new strategies for adapting existing strategies in order to enhance the beneficial effects at the economic and social level of international transactions. Successful companies in the services sector have a precise, clear, competitive strategy. With a clearly outlined strategy, managers can more easily accept or reject certain initiatives and providers know how to serve customers better. Our study highlights the theories about the strategies in services. Some modalities for organizing IT and telecommunication service delivery are also exemplified.

  8. [Computer Science and Telecommunications Board activities

    Energy Technology Data Exchange (ETDEWEB)

    Blumenthal, M.S.

    1993-02-23

    The board considers technical and policy issues pertaining to computer science, telecommunications, and associated technologies. Functions include providing a base of expertise for these fields in NRC, monitoring and promoting health of these fields, initiating studies of these fields as critical resources and sources of national economic strength, responding to requests for advice, and fostering interaction among the technologies and the other pure and applied science and technology. This document describes its major accomplishments, current programs, other sponsored activities, cooperative ventures, and plans and prospects.

  9. Telecommunications at the crossroads in India

    Directory of Open Access Journals (Sweden)

    Subhashish Gupta

    2015-09-01

    Full Text Available The telecommunications sector is going through an interesting phase in its evolution. Cellular mobile service providers have been at the root of the massive expansion in the number of subscribers and usage. Since last year the pace of growth has slowed down and it is increasingly clear that revenues from voice services alone will not be sufficient. The action has now moved to data. In fact, mobile service providers have seen a rapid increase in their revenues from data. Data, however, is more complex than voice. The key challenges are explored here.

  10. Telecommunication technology used in home healthcare.

    Science.gov (United States)

    Mishra, Sumant; Nayak, C G; Shet, K C; George, V I

    2011-01-01

    Current telemedicine applications are usually developed for doctors to do consultation and case study between several hospitals. Patients see doctor at home via Internet becomes possible and it might be a part of lifestyle in the future. Telemedicine has been an active area of research for over 30 years. In the past, several telemedicine applications using wired EPABX telecommunications equipment were provided whereas now-a-days the evolution of wireless communication means enabling telemedicine systems to operate everywhere in the world, thus expanding telemedicine benefits, services and applications. How these applications are used in healthcare delivery and what are the technologies used in this system are explained in this paper.

  11. Quantum electronics for atomic physics and telecommunication

    CERN Document Server

    Nagourney, Warren G

    2014-01-01

    Nagourney provides a course in quantum electronics for researchers in atomic physics and other related areas (including telecommunications). The book covers the usual topics, such as Gaussian beams, optical cavities, lasers, non-linear optics, modulation techniques and fibre optics, but also includes a number of areas not usually found in a textbook on quantum electronics, such as the enhancement of non-linear processes in a build-up cavity or periodically poled waveguide, impedance matching into a cavity and astigmatism in ring cavities.

  12. Assessment of the cost-effectiveness of photovoltaic systems for telecommunications in Nigeria

    Science.gov (United States)

    Oparaku, O. U.

    2002-03-01

    Developing countries seeking relevance in the international community have to adopt programmes in order to achieve cost-effective economic growth. Telecommunications is one area where emphasis must be laid because of its impact on development. Since the power supply forms an essential part of any communication system it is important to chose the power supply option that has the lowest life-cycle cost. The life-cycle costs of several power supply alternatives to some telecommunication systems in Nigeria have been evaluated. A hybrid (Solar/Gen. Set) power supply option is shown to be cost-effective when compared with diesel generating systems powering telecommunication equipment and airconditioning loads. The cost of PV power supply option used for a celluphone system is about 10% of the cost of the alternative of daily battery replacement and haulage. The low teledensity in the country creates a need for bold initiatives to incorporate solar power in telecommunications network, particularly in the remote rural communities where conventional electricity is not only unavailable, but is unreliable and very costly to maintain.

  13. Communicating embedded systems networks applications

    CERN Document Server

    Krief, Francine

    2013-01-01

    Embedded systems become more and more complex and require having some knowledge in various disciplines such as electronics, data processing, telecommunications and networks. Without detailing all the aspects related to the design of embedded systems, this book, which was written by specialists in electronics, data processing and telecommunications and networks, gives an interesting point of view of communication techniques and problems in embedded systems. This choice is easily justified by the fact that embedded systems are today massively communicating and that telecommunications and network

  14. 75 FR 56557 - Meeting of the Department of Justice's (DOJ's) Global Justice Information Sharing Initiative...

    Science.gov (United States)

    2010-09-16

    ... point for justice information systems integration activities in order to facilitate the coordination of... of Justice Programs Meeting of the Department of Justice's (DOJ's) Global Justice Information Sharing... meeting. SUMMARY: This is an announcement of a meeting of DOJ's Global Justice Information...

  15. Benchmarking in Identifying Priority Directions of Development of Telecommunication Operators

    Directory of Open Access Journals (Sweden)

    Zaharchenko Lolita A.

    2013-12-01

    Full Text Available The article analyses evolution of development and possibilities of application of benchmarking in the telecommunication sphere. It studies essence of benchmarking on the basis of generalisation of approaches of different scientists to definition of this notion. In order to improve activity of telecommunication operators, the article identifies the benchmarking technology and main factors, that determine success of the operator in the modern market economy, and the mechanism of benchmarking and component stages of carrying out benchmarking by a telecommunication operator. It analyses the telecommunication market and identifies dynamics of its development and tendencies of change of the composition of telecommunication operators and providers. Having generalised the existing experience of benchmarking application, the article identifies main types of benchmarking of telecommunication operators by the following features: by the level of conduct of (branch, inter-branch and international benchmarking; by relation to participation in the conduct (competitive and joint; and with respect to the enterprise environment (internal and external.

  16. Evolving the Convergence of Telecommunication and TV Services over NGN

    Directory of Open Access Journals (Sweden)

    Adel Al-Hezmi

    2008-01-01

    Full Text Available The convergence of telecommunication, cable TV, and broadcast networks towards the Internet technology will enable the provision of emerging multimedia services as well as the integration of rich communication capabilities with TV services. However, enabling efficient delivery of interactive personalized multimedia services with mobility support requires an advanced overlay control framework. The IP Multimedia Subsystem (IMS offers the basic functions to manage multimedia sessions over different access networks. This paper outlines current standardization activities that address the provisioning of TV services over IP networks—known as IPTV—and proposes a novel end-to-end overall architecture based on IMS that enables the delivery of converged multimedia services. Furthermore, the paper presents the FOKUS Media Interoperability Lab as a reference implementation of this framework which covers a widespread spectrum of converged interactive scenarios. The final section gives an impression of the system performance by providing the end-to-end signaling delay of a session setup for live TV service delivered over unicast transmission mode.

  17. Sanitary justice in scarcity

    Directory of Open Access Journals (Sweden)

    Miguel Kottow

    Full Text Available Justice in health care and the allocation of scarce medical resources must be analyzed differently in affluent as compared to economically weaker societies. The protective functions of the state must be extended to cover basic needs for those too poor to meet them on their own. Medical needs are a high priority, since poor health hampers the ability to secure other basic needs. The state may operate as either a health care provider or supervisor, guaranteeing that citizens be treated fairly by nongovernmental institutions. Two-tiered systems with a vigorous private health care sector are compatible with the explicit right to health care, provided the private tier operates without directly or indirectly draining public funds.

  18. Publicity and Egalitarian Justice

    DEFF Research Database (Denmark)

    Lippert-Rasmussen, Kasper

    2008-01-01

    Recently, the issue of publicity has surfaced in discussions of the correct interpretation of the Rawlsian principles of justice. In an intriguing critique of G.A. Cohen's preferred interpretation of the difference principle as a principle that is incompatible with incentive-based inequalities......, Andrew Williams points to a gap in Cohen's argument, alleging that Cohen's interpretation of the difference principle is unlikely to be compatible with the Rawlsian endorsement of publicity. Having explored a possible extrapolation of Cohen's critique to aggregate consumer choices and a resulting...... extension of Williams's charge that the difference principle, on Cohen's reading, fails to meet the publicity constraint because of its informational demandingness, I defend three claims: (a) it is doubtful that Rawls endorses a publicity constraint of the sort that would rule out Cohen's interpretation...

  19. JUSTICE AND LIBERTY IN HEGEL

    Directory of Open Access Journals (Sweden)

    Thadeu Weber

    2014-06-01

    Full Text Available This paper aims to make explicit the concept of justice in Hegel’s Philosophy of Right. It bounds it to the idea of liberty in its different ways of determination. It starts from the notion of person of right and indicates the fundamental rights that derive from the expression of this legal capacity. It highlights the right of necessity as a right to make an exception in favor of itself aiming the actualization of justice. It shows how, through the Law, in civil society, it happens the administration of justice.

  20. Juvenile justice mental health services.

    Science.gov (United States)

    Thomas, Christopher R; Penn, Joseph V

    2002-10-01

    As the second century of partnership begins, child psychiatry and juvenile justice face continuing challenges in meeting the mental health needs of delinquents. The modern juvenile justice system is marked by a significantly higher volume of cases, with increasingly complicated multiproblem youths and families with comorbid medical, psychiatric, substance abuse disorders, multiple family and psychosocial adversities, and shrinking community resources and alternatives to confinement. The family court is faced with shrinking financial resources to support court-ordered placement and treatment programs in efforts to treat and rehabilitate youths. The recognition of high rates of mental disorders for incarcerated youth has prompted several recommendations for improvement and calls for reform [56,57]. In their 2000 annual report, the Coalition for Juvenile Justice advocated increased access to mental health services that provide a continuum of care tailored to the specific problems of incarcerated youth [58]. The specific recommendations of the report for mental health providers include the need for wraparound services, improved planning and coordination between agencies, and further research. The Department of Justice, Office of Juvenile Justice and Delinquency Prevention has set three priorities in dealing with the mental health needs of delinquents: further research on the prevalence of mental illness among juvenile offenders, development of mental health screening assessment protocols, and improved mental health services [59]. Other programs have called for earlier detection and diversion of troubled youth from juvenile justice to mental health systems [31,56]. Most recently, many juvenile and family courts have developed innovative programs to address specific problems such as truancy or substance use and diversionary or alternative sentencing programs to deal with first-time or nonviolent delinquents. All youths who come in contact with the juvenile justice system

  1. Implementation of the Quality Management System in the telecommunications companies

    Directory of Open Access Journals (Sweden)

    Menshikova Ekaterina

    2016-01-01

    Full Text Available This article describes the advantages of the implementing of the quality management system based on ISO 9001 in the telecommunications companies. The stages of the implementation of the quality management system in the telecommunications companies are discussed. The map of the main process and criteria of processes is developed. The expediency of implementing the quality management system based on the requirements of ISO 9001 in Telecommunications is showed.

  2. Computer Science and Telecommunications Board summary of activities

    Energy Technology Data Exchange (ETDEWEB)

    Blumenthal, M.S.

    1992-03-27

    The Computer Science and Telecommunications Board (CSTB) considers technical and policy issues pertaining to computer science, telecommunications, and associated technologies. CSTB actively disseminates the results of its completed projects to those in a position to help implement their recommendations or otherwise use their insights. It provides a forum for the exchange of information on computer science, computing technology, and telecommunications. This report discusses the major accomplishments of CSTB.

  3. Implementation of the Quality Management System in the telecommunications companies

    OpenAIRE

    Menshikova Ekaterina; Khazanov Oleg; Styazhkin Mark

    2016-01-01

    This article describes the advantages of the implementing of the quality management system based on ISO 9001 in the telecommunications companies. The stages of the implementation of the quality management system in the telecommunications companies are discussed. The map of the main process and criteria of processes is developed. The expediency of implementing the quality management system based on the requirements of ISO 9001 in Telecommunications is showed.

  4. The Study of Telecommunication Industry Based on the Ecosystem

    Institute of Scientific and Technical Information of China (English)

    GUO Ning; LIANG Xiong-jian

    2005-01-01

    This paper studies the telecommunication industry from the view points of the ecosystem ecology, in order to gain the beneficial revelation, such as the more effective management method and the approach to enhance the competitive advantage. On the basis of analyzing the comparability and the difference between the telecommunication industry and the natural ecosystem, the approach, principle and content of the study of telecommunication industry based on the ecosystem are discussed.

  5. CULTURAL INFLUENCES ON PRE-PAY MOBILE TELECOMMUNICATIONS SERVICES USERS

    Directory of Open Access Journals (Sweden)

    Georgeta-Madalina MEGHISAN

    2015-06-01

    Full Text Available Purpose: The purpose of this research paper is to identify the preferences of the pre-pay mobile telecommunications services young users from Romania. Approach/ methodology: The analysis of the pre-pay mobile telecommunications services was made using statistical functions: descriptive statistics, t test, correlation and factor analysis. Results: According to the analysis made, we could underline the habits of usage from the part of pre-pay mobile telecommunications services consumers. Originality: The paper drew an objective analysis on the pre-pay mobile telecommunications services from the perspective of young consumers.

  6. Allegheny County Environmental Justice Areas

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Environmental Justice areas in this guide have been defined by the Pennsylvania Department of Environmental Protection. The Department defines an environmental...

  7. Polarization of perceived Procedural Justice.

    Science.gov (United States)

    Flint, Douglas H; Hernandez-Marrero, Pablo; Wielemaker, Martin

    2006-02-01

    This study examined polarization of perceptions of Procedural Justice. Two polarization mechanisms are examined, Persuasive Arguments and Social Comparisons. Participants were students enrolled in a first-year introductory business class. There were 216 participants in the Persuasive Arguments study, 429 in the Social Comparisons study. The average age of all participants was 22.3 yr. (SD = 2.1); 56% were women. Fields of study represented were business, engineering, information technology, and sports. Analysis showed under conditions of low Procedural Justice, polarization effects were only found with the Persuasive Arguments mechanism. Under conditions of high Procedural Justice, polarization effects were only found with Social Comparisons. Implications for group polarization and Procedural Justice theories are considered.

  8. Justice orientation as a moderator of the framing effect on procedural justice perception.

    Science.gov (United States)

    Sasaki, Hiroyuki; Hayashi, Yoichiro

    2014-01-01

    Justice orientation is a justice-relevant personality trait, which is referred to as the tendency to attend to fairness issues and to internalize justice as a moral virtue. This study examined the moderating role of justice orientation in the relationship between justice perception and response to a decision problem. The authors manipulated procedural justice and the outcome valence of the decision frame within a vignette, and measured justice orientation of 174 Japanese participants. As hypothesized, the results indicated an interaction between procedural justice and framing manipulation, which was moderated by individual differences in justice orientation. In negative framing, justice effects were larger for individuals with high rather than low justice orientation. The results are explained from a social justice perspective, and the contributions and limitations of this study are also discussed with respect to our sample and framing manipulation.

  9. Cuban Telecommunications, Computer Networking, and U.S. Policy Implications,

    Science.gov (United States)

    1996-07-01

    results of RAND research. Unrestricted drafts have not been formally re- viewed or edited. The views and conclusions expressed are tentative. A draft...Informacion para la Prensa Federacion de Mujeres Cubanas Grupo para la Educacion sobre el SIDA Instituto Superior Latinoamericano de Ajedrez

  10. QMeter Tools for Quality Measurement in Telecommunication Network

    Directory of Open Access Journals (Sweden)

    Akram Aburas

    2011-08-01

    Full Text Available Call Quality is prevalent and widely used by carriers that transport the calls of telecom operators. Butfrom end-users perspective call quality has been not taken very seriously until now and this is the reasonfor surge in GSM gateways which resulted in interconnect revenue loss and more importantly the callquality. This particular research developed as QMeter® is focussed to address and derive the callquality parameters from end-users perspective. The call parameters used in our research are SignalStrength, the successful call rate, normal drop call rate, handover drop rate. An attempt to visualizethose parameters for better understanding of where the quality is bad with respect to various parametersproposed and implemented. To address the issues of quality in subscriber segment and satisfy its demandfor quality of services, an alternative solution proposing the varying tariff based on call and bandwidthquality parameter is proposed. Call statistics for the bundles of ten calls and ten data sessions isproposed to better address the tariff redemption procedures. The proposed methods of qualitymeasurement has been compared and correlated with subjective scores for hundreds of calls and theresults show that our results are 85% on an average in correlation with subjective scores.

  11. MODELING OF THE PROCESS OF FUNCTIONING OF THE TELECOMMUNICATION NETWORK UNDER SOFTWARE AND HARDWARE IMPACTS Моделирование процесса функционирования телекоммуникационной сети в условиях программно-аппаратных воздействий

    Directory of Open Access Journals (Sweden)

    Isupov A. B.

    2012-09-01

    Full Text Available The model of functioning of the telecommunication network in the conditions of three main stages of typical software and hardware impact is considered in the article. The factors, affecting the quality of the detection of software and hardware impacts are determined

  12. Quantum Cryptography in Existing Telecommunications Infrastructure

    Science.gov (United States)

    Rogers, Daniel; Bienfang, Joshua; Mink, Alan; Hershman, Barry; Nakassis, Anastase; Tang, Xiao; Ma, Lijun; Su, David; Williams, Carl; Clark, Charles

    2006-03-01

    Quantum cryptography has shown the potential for ultra-secure communications. However, all systems demonstrated to date operate at speeds that make them impractical for performing continuous one-time-pad encryption of today's broadband communications. By adapting clock and data recovery techniques from modern telecommunications engineering practice, and by designing and implementing expeditious error correction and privacy amplification algorithms, we have demonstrated error-corrected and privacy-amplified key rates up to 1.0 Mbps over a free-space link with a 1.25 Gbps clock. Using new detectors with improved timing resolution, careful wavelength selection and an increased clock speed, we expect to quadruple the transmission rate over a 1.5 km free-space link. We have identified scalable solutions for delivering sustained one-time-pad encryption at 10 Mbps, thus making it possible to integrate quantum cryptography with first-generation Ethernet protocols.

  13. Telecommunications Options Connect OCLC and Libraries to the Future: The Co-Evolution of OCLC Connectivity Options and the Library Computing Environment.

    Science.gov (United States)

    Breeding, Marshall

    1998-01-01

    The Online Computer Library Center's (OCLC) access options have kept pace with the evolving trends in telecommunications and the library computing environment. As libraries deploy microcomputers and develop networks, OCLC offers access methods consistent with these environments. OCLC works toward reorienting its network paradigm through TCP/IP…

  14. 47 CFR 54.517 - Services provided by non-telecommunications carriers.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Services provided by non-telecommunications carriers. 54.517 Section 54.517 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON....517 Services provided by non-telecommunications carriers. (a) Non-telecommunications carriers shall...

  15. 47 CFR 64.1120 - Verification of orders for telecommunications service.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Verification of orders for telecommunications service. 64.1120 Section 64.1120 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON... Telecommunications Service Providers § 64.1120 Verification of orders for telecommunications service. (a)...

  16. Laying the Groundwork: Lessons Learned from the Telecommunications Industry for Distributed Generation; Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Wise, A. L.

    2008-05-01

    The telecommunications industry went through growing pains in the past that hold some interesting lessons for the growing distributed generation (DG) industry. The technology shifts and stakeholders involved with the historic market transformation of the telecommunications sector mirror similar factors involved in distributed generation today. An examination of these factors may inform best practices when approaching the conduits necessary to accelerate the shifting of our nation's energy system to cleaner forms of generation and use. From a technical perspective, the telecom industry in the 1990s saw a shift from highly centralized systems that had no capacity for adaptation to highly adaptive, distributed network systems. From a management perspective, the industry shifted from small, private-company structures to big, capital-intensive corporations. This presentation will explore potential correlation and outline the lessons that we can take away from this comparison.

  17. Telecommunications, navigation and information management concept overview for the Space Exploration Initiative program

    Science.gov (United States)

    Bell, Jerome A.; Stephens, Elaine; Barton, Gregg

    1991-01-01

    An overview is provided of the Space Exploration Initiative (SEI) concepts for telecommunications, information systems, and navigation (TISN), and engineering and architecture issues are discussed. The SEI program data system is reviewed to identify mission TISN interfaces, and reference TISN concepts are described for nominal, degraded, and mission-critical data services. The infrastructures reviewed include telecommunications for robotics support, autonomous navigation without earth-based support, and information networks for tracking and data acquisition. Four options for TISN support architectures are examined which relate to unique SEI exploration strategies. Detailed support estimates are given for: (1) a manned stay on Mars; (2) permanent lunar and Martian settlements; short-duration missions; and (4) systematic exploration of the moon and Mars.

  18. Telecommunication: Economic studies. Citations from the NTIS data base

    Science.gov (United States)

    Reed, W. E.

    1980-06-01

    Research on economic evaluations of the telecommunications industry is cited. Communication satellites, common carriers, cable television, telephone systems, and television systems are all covered in the bibliography. Economic studies of the foreign telecommunications industry are included. This updated bibliography contains 60 abstracts, 36 of which are new entries to the previous edition.

  19. Worldwide Report, Telecommunications Policy, Research and Development, No. 250.

    Science.gov (United States)

    1982-12-01

    tigating the extent to which the private sector could be more widely involved in the provision of existing or prop- osed telecommunications ser ...equipment from La Paz to install this rural telecommunications service. [Text] [Cochabamba LOS TIEMPOS in Spanish 12 Oct 82 p 6] 9972 9972 CSO

  20. Vocational Rehabilitation Service Delivery Using Telecommunication. Research Report

    Science.gov (United States)

    Goe, Rebecca; Ipsen, Catherine

    2012-01-01

    Telecommunication offers a low cost solution to increasing client and counselor contact during the vocational rehabilitation (VR) process, particularly for clients at a distance from the VR office. Despite the advantage telecommunication provides, however, counselors report using email with fewer rural as compared to urban clients. In part, this…

  1. Telecommunications in Foreign Language Education: A Resource List. ERIC Digest.

    Science.gov (United States)

    Krause, Julie

    Foreign language and bilingual educators are in the unique position of being able to bring the world to their classrooms via the telecommunications technologies. Telecommunication is electronic communication over long distances by means of an online computer service, a telephone, a television, a satellite, or other long distance technologies. This…

  2. Bridging the Technology of Telecommunications into Business Communication.

    Science.gov (United States)

    Nixon, Judy C.; West Judy F.

    A survey of companies using telecommunications equipment investigated the distribution of channel selection and the use of external mail distribution systems. A total of 50 companies responded to the survey, which identified 12 telecommunications systems and seven external mail distribution systems. Results indicated that the four most popular…

  3. Telecommunications: Competitive Impact of Restructuring the International Satellite Organizations.

    Science.gov (United States)

    1996-07-01

    government-sanctioned monopolistic telecommunications companies. These entities usually control or influence access to telecommunications services...Dongfangong (China); Insat (India); Koreasat (Korea); Measat ( Malaysia ); Palapa (Indonesia/Asean countries); Rimsat (Tonga); and Thaicom (Thailand). In...by raising $1.4 billion through our partners initial equity investments, vendor financing, a $250 million bank credit facility, and two successful

  4. A Study of Methods of Telecommunication Tariff Decision

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    An in-depth exploration has been made of telecommunication tariffand its decision support system. It is the first attempt to conduct such a study by the integrated use of econometrics, system emulation and system dynamics. A practically-demanded cost model of the telecommunication tariff decision is proposed. The system has been verified with real data.

  5. 45 CFR 63.23 - Telecommunications Demonstration Grants.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Telecommunications Demonstration Grants. 63.23... Telecommunications Demonstration Grants. The provisions of this section apply only to grants awarded under authority of 392A of the Communications Act of 1934. (a) Funds provided under the...

  6. ADMINISTRATIVE JUSTICE IN POLAND

    Directory of Open Access Journals (Sweden)

    J. Turłukowski

    2016-01-01

    Full Text Available This article begins with an analysis of the development of administrative justice in Poland over the last centuries. In particular, the author examines administrative jurisdiction before 1918, when Poland regained its independence, the period of the Duchy of Warsaw, the Kingdom of Poland, and the practice on Polish territory under Austrian and Prussian control. The author then moves to modern law by presenting the judicial system in Poland in general, especially the differences between the separate systems of general courts and administrative courts, and analyses the jurisdiction of voivodship (regional administrative courts, and the basic principles of judicial and administrative proceedings. The focus of study is mainly devoted to judicial and administrative procedure, rather than an administrative process of citizens before administrative authorities regulated in a separate Code of Administrative Procedure. The article describes the role of the judge (pointing out the differences between the active role of first instance judges and the limited capabilities of the judges of the appeal and the powers of the Supreme Court, in particular its power to adopt resolutions, which has agreat importance for the unification of the jurisprudence. A brief analysis is given to class actions, which in the Polish legal system are inadmissible in court and administrative proceedings. The articles provides a statistical cross-section illustrating the role of administrative jurisdiction. The author concludes with observations pointing up the progress of administrative jurisdiction in Poland, not only in the legal sense, but also in the cultural sense.

  7. TRENDS IN THE ROMANIAN MOBILE TELECOMMUNICATION SERVICES MARKET

    Directory of Open Access Journals (Sweden)

    CECILIA IRINA RABONTU

    2015-12-01

    Full Text Available Managing space and especially time are perhaps the most important challenges accepted in the economy of the immaterial. The telecommunication services, by their volatile nature, unlimited as potential and relational by definition, found the solutions that transform time into an economic variable, differentiated and easy handled. Information technology, audiovisual and telecommunication contributed individually, but mostly focused, on domination and compressing time, even canceling space. The logical support of techniques for transmitting images, sounds and information is provided through telecommunications. The most dynamic and perishable services in the contemporary period are found in the telecommunications area, which is facing an exacerbated instability of the market and the need for a financial power increasingly larger. We have proposed in this paper to analyze the current state of this category of services and to determine the trends regarding the evolution of Romanian telecommunications market.

  8. Telecommunication system for children undergoing stem cell transplantation.

    Science.gov (United States)

    Higuchi, Kazumi; Nakazawa, Yozo; Sakata, Nobuhiro; Takizawa, Masaomi; Ohso, Keiko; Tanaka, Miyuki; Yanagisawa, Ryu; Koike, Kenichi

    2011-12-01

    Isolation in a germ-free unit is a stressful experience for pediatric patients undergoing hematopoietic stem cell transplantation (HSCT). To reduce the psychological distress of such children, a Web-based telecommunications system was developed. The authors developed a telecommunication system that linked a laminar air flow (LAF) room that had a high efficiency particulate air filter with the hospital school/patients' homes via the Internet. Fifteen children isolated in the LAF room for allogeneic HSCT were enrolled in this study. The present study evaluated whether the system was feasible for the patients during the acute phase of HSCT. In 10 patients, the proportion of days when they telecommunicated with teachers and/or other patients in the hospital school was 64.6 ± 32.3%. The telecommunication with the hospital school facilitated the continuation of school study under teachers' guidance, reducing the problem of lost schooling. In 13 patients, the proportion of days when they telecommunicated with their homes was 68.0 ± 34.8%. Ten of them frequently telecommunicated with their family members (especially siblings), and three patients called out to their pets at home. The incidence of telecommunication on the days when the patients had HSCT-related symptoms including vomiting did not differ from that of telecommunication on the days when no symptoms were evident. A telecommunication system linked to a hospital school and/or the patients' homes is feasible for children undergoing HSCT, and may improve their health-related quality of life. A larger, prospective study is required to evaluate whether the telecommunication system can reduce HSCT-associated psychological and psychiatric symptoms. © 2011 The Authors. Pediatrics International © 2011 Japan Pediatric Society.

  9. Gendered Justice Gaps in Bosnia-Herzegovina

    DEFF Research Database (Denmark)

    Björkdahl, Annika; Mannergren Selimovic, Johanna

    2014-01-01

    , and reparations gaps-this article examines structural constraints for women to engage in shaping and implementing transitional justice, and unmasks transitional justice as a site for the long-term construction of the gendered post-conflict order. Thus, the gendered dynamics of peacebuilding and transitional...... justice have produced a post-conflict order characterized by gendered peace and justice gaps. Yet, we conclude that women are doing justice within the Bosnian-Herzegovina transitional justice project, and that their presence and participation is complex, multilayered, and constrained yet critical. © 2013...

  10. Factors Affecting Customer Satisfaction in Mobile Telecommunication Industry in Bangladesh

    Directory of Open Access Journals (Sweden)

    Md. Rahman

    2014-06-01

    Full Text Available Identification of factors responsible for customer satisfaction is a key concern of marketing scholars and marketers in now a days and it will remain in the future. There is considerable evidence that quality factors affecting customer satisfaction in numerous ways. However, this empirical study is initiated to find out what particular factors responsible for customer satisfaction in the mobile tel- ecommunication industry in Bangladesh. 282 samples have been collected through structured questionnaire; study reveals that service innovativeness, service reli- ability, service competitiveness and service consistency have significant influence on making customer satisfied and the operator’s network/signal coverage, pricing, offering, fulfillment of customer demand, value added service, brand value and op - erators contribution for society have insignificant influences on making customer satisfied at five percent level of significant at multiple regression analysis. On the basis of these findings; study concludes that in promoting customer satisfaction mobile service providers should be concerned for factors responsible for insignifi- cant influence on customer satisfaction and care of those factors have significant influence on promoting customer satisfaction in telecommunication industry in Bangladesh.

  11. Relay Telecommunications for the Coming Decade of Mars Exploration

    Science.gov (United States)

    Edwards, C.; DePaula, R.

    2010-01-01

    Over the past decade, an evolving network of relay-equipped orbiters has advanced our capabilities for Mars exploration. NASA's Mars Global Surveyor, 2001 Mars Odyssey, and Mars Reconnaissance Orbiter (MRO), as well as ESA's Mars Express Orbiter, have provided telecommunications relay services to the 2003 Mars Exploration Rovers, Spirit and Opportunity, and to the 2007 Phoenix Lander. Based on these successes, a roadmap for continued Mars relay services is in place for the coming decade. MRO and Odyssey will provide key relay support to the 2011 Mars Science Laboratory (MSL) mission, including capture of critical event telemetry during entry, descent, and landing, as well as support for command and telemetry during surface operations, utilizing new capabilities of the Electra relay payload on MRO and the Electra-Lite payload on MSL to allow significant increase in data return relative to earlier missions. Over the remainder of the decade a number of additional orbiter and lander missions are planned, representing new orbital relay service providers and new landed relay users. In this paper we will outline this Mars relay roadmap, quantifying relay performance over time, illustrating planned support scenarios, and identifying key challenges and technology infusion opportunities.

  12. Relay Telecommunications for the Coming Decade of Mars Exploration

    Science.gov (United States)

    Edwards, C.; DePaula, R.

    2010-01-01

    Over the past decade, an evolving network of relay-equipped orbiters has advanced our capabilities for Mars exploration. NASA's Mars Global Surveyor, 2001 Mars Odyssey, and Mars Reconnaissance Orbiter (MRO), as well as ESA's Mars Express Orbiter, have provided telecommunications relay services to the 2003 Mars Exploration Rovers, Spirit and Opportunity, and to the 2007 Phoenix Lander. Based on these successes, a roadmap for continued Mars relay services is in place for the coming decade. MRO and Odyssey will provide key relay support to the 2011 Mars Science Laboratory (MSL) mission, including capture of critical event telemetry during entry, descent, and landing, as well as support for command and telemetry during surface operations, utilizing new capabilities of the Electra relay payload on MRO and the Electra-Lite payload on MSL to allow significant increase in data return relative to earlier missions. Over the remainder of the decade a number of additional orbiter and lander missions are planned, representing new orbital relay service providers and new landed relay users. In this paper we will outline this Mars relay roadmap, quantifying relay performance over time, illustrating planned support scenarios, and identifying key challenges and technology infusion opportunities.

  13. Global justice, poverty and maternal mortality

    Directory of Open Access Journals (Sweden)

    Flor de María Cáceres M

    2010-11-01

    Full Text Available Global justice is currently situated in an ambiance of tension and debate, facing a series of statements attempting to explain relationships among countries, based on the background of agreements already accomplished by supranational agencies. This network of relationships, not always fair nor equitable, has resulted in an increased accumulation of wealth in just a few hands and poverty in a growing number of people in poor countries and geographic areas with restrictions to access both to resources and to technological and scientific advances. Poverty, exclusion and inequalities limit all together the opportunities for development in these communities, with the outcome of serious consequences such as the deterioration in basic indicators of development. Maternal mortality rate (mm is considered a sentinel indicator since it belongs in most cases to premature deaths which would be avoidable through proper measures in education, health promotion and timely access to quality health services. The purpose of this essay is to defend the thesis that the lack of global justice has limited the scope of the goals related to poverty and mm reduction

  14. An Evaluation of Social Justice Performance in the Distribution of Metro Networks in the Central City of Shanghai%上海市中心城区轨道交通网络分布的社会正义绩效评价*

    Institute of Scientific and Technical Information of China (English)

    唐子来; 陈颂

    2016-01-01

    以上海市中心城区轨道交通网络分布为例,提出了城市公共服务设施分布的社会正义绩效评价的份额指数方法。研究显示,低收入社会群体享有轨交网络资源的份额指数略低于社会平均份额,但轨道交通网络分布的社会正义绩效仍处于基本合理区间。社会正义绩效的空间格局表明,低收入社会群体人均享有轨交网络资源在圈层之间和扇面之间存在显著差异,但浦西地区和浦东地区之间差异并不显著。城市社会空间极化的不断加剧趋势对于城市规划中基本公共服务设施分布兼顾社会公平绩效和社会正义绩效提出了挑战。本文提出的社会正义绩效评价方法为同一城市的历时性比较和不同城市的共时性比较提供了研究基础,但缓解城市社会空间的极化趋势则是包容性发展中更为需要关注的公共政策。%Taking the distribution of metro networks in the central city of Shanghai as a case, the paper conducts the application of share index to evaluate social justice performance in the distribution of urban public services. According to the research ifndings, although the share index of metro network resource by low-income residents is slightly lower than the social share of total residents, the reasonable situation of social justice performance in the distribution of metro networks can be justiifed. As shown by the spatial conifguration of social justice performance, there is signiifcant discrepancy in the share index of metro network resource by low-income residents among concentric-circles and sectoral areas rather than the dimension between Puxi and Pudong areas. The increasing process of urban social-spatial polarization is generating a great challenge to the distribution of urban public services with its social performance evaluated in both equity and justice dimensions. While the paper provides a framework of evaluating social justice performance in

  15. Mathematics education for social justice

    Science.gov (United States)

    Suhendra

    2016-02-01

    Mathematics often perceived as a difficult subject with many students failing to understand why they learn mathematics. This situation has been further aggravated by the teaching and learning processes used, which is mechanistic without considering students' needs. The learning of mathematics tends to be just a compulsory subject, in which all students have to attend its classes. Social justice framework facilitates individuals or groups as a whole and provides equitable approaches to achieving equitable outcomes by recognising disadvantage. Applying social justice principles in educational context is related to how the teachers treat their students, dictates that all students the right to equal treatment regardless of their background and completed with applying social justice issues integrated with the content of the subject in order to internalise the principles of social justice simultaneously the concepts of the subject. The study examined the usefulness of implementing the social justice framework as a means of improving the quality of mathematics teaching in Indonesia involved four teacher-participants and their mathematics classes. The study used action research as the research methodology in which the teachers implemented and evaluated their use of social justice framework in their teaching. The data were collected using multiple research methods while analysis and interpretation of the data were carried out throughout the study. The findings of the study indicated that there were a number of challengesrelated to the implementation of the social justice framework. The findings also indicated that, the teachers were provided with a comprehensive guide that they could draw on to make decisions about how they could improve their lessons. The interactions among students and between the teachers and the students improved, they became more involved in teaching and learning process. Using social justice framework helped the teachers to make mathematics more

  16. 76 FR 18292 - Announcement of a Meeting of the International Telecommunication Advisory Committee

    Science.gov (United States)

    2011-04-01

    ... Announcement of a Meeting of the International Telecommunication Advisory Committee SUMMARY: This notice announces a meeting of the International Telecommunication Advisory Committee (ITAC) to prepare for the International Telecommunication Union (ITU) World Radiocommunication Conference and the Radiocommunication...

  17. 78 FR 48765 - Preparations for the International Telecommunication Union Plenipotentiary Conference 2014

    Science.gov (United States)

    2013-08-09

    ... Preparations for the International Telecommunication Union Plenipotentiary Conference 2014 This notice announces a meeting of the Department of State's International Telecommunication Advisory Committee (ITAC) to initiate preparations for the International Telecommunication Union (ITU) Plenipotentiary...

  18. 75 FR 49547 - Renewal of the Charter of the United States International Telecommunication Advisory Committee

    Science.gov (United States)

    2010-08-13

    ... of the Charter of the United States International Telecommunication Advisory Committee SUMMARY: The Charter of the International Telecommunication Advisory Committee (ITAC) has been renewed for an... Department of State with respect to, and provide strategic planning recommendations on, telecommunication and...

  19. 78 FR 72746 - Activities of the International Telecommunication Advisory Committee and Preparations for...

    Science.gov (United States)

    2013-12-03

    ... Activities of the International Telecommunication Advisory Committee and Preparations for Upcoming International Telecommunications Meetings This notice announces a meeting of the Department of State's International Telecommunication Advisory Committee (ITAC) to review the activities of the committee over the...

  20. 75 FR 35122 - Announcement of Meetings of the International Telecommunication Advisory Committee

    Science.gov (United States)

    2010-06-21

    ... Announcement of Meetings of the International Telecommunication Advisory Committee Summary: This notice announces meetings of the International Telecommunication Advisory Committee (ITAC) to start preparations for the 2010 Plenipotentiary Conference of the International Telecommunication Union (ITU) and the...

  1. 76 FR 77738 - Telecommunications Act Accessibility Guidelines; Electronic and Information Technology...

    Science.gov (United States)

    2011-12-14

    ... TRANSPORTATION BARRIERS COMPLIANCE BOARD 36 CFR Parts 1193 and 1194 RIN 3014-AA37 Telecommunications Act... recent Advance Notice of Proposed Rulemaking to update its Telecommunications Act Accessibility... Federal Register to continue the process of updating its guidelines for telecommunications...

  2. 77 FR 14012 - Eligible Telecommunications Carrier Designation for Participation in Mobility Fund Phase I

    Science.gov (United States)

    2012-03-08

    ... Telecommunications Carrier Designation for Participation in Mobility Fund Phase I AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: In this document, the Commission's Wireless Telecommunications and... Telecommunications Carrier (ETC) Designation from the Commission for participation in Mobility Fund Phase I...

  3. 78 FR 15615 - Reporting Requirements for U.S. Providers of International Telecommunications Services

    Science.gov (United States)

    2013-03-12

    ... Telecommunications Services AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: In this document... telecommunications services, the Commission consolidated the traffic and revenue and circuit status reports into one... the current state of the international telecommunications market. DATES: Effective April 11,...

  4. 76 FR 42567 - Reporting Requirements for U.S. Providers of International Telecommunications Services

    Science.gov (United States)

    2011-07-19

    ... Telecommunications Services AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: In this document... unnecessary reporting requirements related to international telecommunications traffic for which the burdens... international telecommunications services. In the First Report and Order portion of the document, the...

  5. 75 FR 70770 - Request for Comments Concerning Compliance With Telecommunications Trade Agreements

    Science.gov (United States)

    2010-11-18

    ... TRADE REPRESENTATIVE Request for Comments Concerning Compliance With Telecommunications Trade Agreements... following agreements regarding telecommunications products and services of the United States: the World... agreements regarding telecommunications products and services that are in force with respect to the...

  6. 75 FR 82037 - National Protection and Programs Directorate; President's National Security Telecommunications...

    Science.gov (United States)

    2010-12-29

    ... Programs Directorate; President's National Security Telecommunications Advisory Committee AGENCY: National... Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC... telecommunications policy. The new NSTAC Chair, James Crowe, Chief Executive Officer (CEO), Level 3...

  7. 75 FR 33577 - National Telecommunications and Information Administration; Copyright Policy, Creativity, and...

    Science.gov (United States)

    2010-06-14

    ... United States Patent and Trademark Office National Telecommunications and Information Administration... Trademark Office, U.S. Department of Commerce; and National Telecommunications and Information... and Trademark Office (USPTO) and the National Telecommunications and Information Administration...

  8. 76 FR 42613 - Reporting Requirements for U.S. Providers of International Telecommunications Services

    Science.gov (United States)

    2011-07-19

    ... Telecommunications Services AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: In this... providers of international telecommunications services. The Commission proposes to amend its reporting requirements for providers of international telecommunications services and transmission facilities in order...

  9. 76 FR 71617 - Request for Comments Concerning Compliance With Telecommunications Trade Agreements

    Science.gov (United States)

    2011-11-18

    ... TRADE REPRESENTATIVE Request for Comments Concerning Compliance With Telecommunications Trade Agreements... compliance with the following agreements regarding telecommunications products and services of the United... Agreement (``CAFTA-DR''), and any other telecommunications trade agreements, such as Mutual...

  10. Environmental justice and healthy communities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-01

    The environmental justice movement has come a long way since its birth a decade ago in rural and mostly African American Warren County, North Carolina. The selection of Warren County for a PCB landfill, they brought national attention to waste facility siting inequities and galvanized African American church and civil rights leaders` support for environmental justice. The demonstrations also put {open_quotes}environmental racism{close_quotes} on the map and challenged the myth that African Americans are not concerned about or involved in environmental issues. Grassroots groups, after decades of struggle, have grown to become the core of the multi-issue, multiracial, and multi-regional environmental justice movement. Diverse community-based groups have begun to organize and link their struggles to issues of civil and human rights, land rights and sovereignty, cultural survival , racial and social justice, and sustainable development. The impetus for getting environmental justice on the nations`s agenda has come from an alliance of grassroots activists, civil rights leaders, and a few academicians who questioned the foundation of the current environmental protection paradigm--where communities of color receive unequal protection. Whether urban ghettos and barrios, rural {open_quotes}poverty pockets,{close_quotes} Native American reservations, or communities in the Third World, grassroots groups are demanding an end to unjust and nonsustainable environmental and development policies.

  11. justice and the voice of learners?

    African Journals Online (AJOL)

    bodies, learners' involvement in decision making and in curriculum issues, and .... participation is encouraged, freedom of expression and a sense of justice and ... Democratic theory and theories of social justice cannot be divorced from.

  12. Occupational justice-bridging theory and practice.

    Science.gov (United States)

    Nilsson, Ingeborg; Townsend, Elizabeth

    2010-01-01

    The evolving theory of occupational justice links the concept to social justice and to concerns for a justice of difference: a justice that recognizes occupational rights to inclusive participation in everyday occupations for all persons in society, regardless of age, ability, gender, social class, or other differences. The purpose of this descriptive paper is to inspire and empower health professionals to build a theoretical bridge to practice with an occupational justice lens. Using illustrations from a study of leisure and the use of everyday technology in the lives of very old people in Northern Sweden, the authors argue that an occupational justice lens may inspire and empower health professionals to engage in critical dialogue on occupational justice; use global thinking about occupation, health, justice, and the environment; and combine population and individualized approaches. The authors propose that taking these initiatives to bridge theory and practice will energize health professionals to enable inclusive participation in everyday occupations in diverse contexts.

  13. Organizational justice and health; review of evidence.

    Science.gov (United States)

    Elovainio, Marko; Heponiemi, Tarja; Sinervo, Timo; Magnavita, Nicola

    2010-01-01

    Organizational justice is a construct defining the quality of social interaction at work. Organizational justice can be divided into three categories: procedural justice (fairness of the decision-making procedures), distributive justice (fairness of outcomes) and relational justice (equity and fairness in the interpersonal treatment of employees by their supervisors). Organizational justice is related to employees' health and well-being. Low perceived justice has been shown to be associated with experienced stress reactions and related physiological and behavioral reactions, such as inflammation, sleeping problems, cardiovascular regulation and cognitive impairments, and with a high rate of work absenteeism. This paper is a review of the literature on organizational justice and its impact on workers' health.

  14. Transitional Justice, Culture and Society: Beyond Outreach

    Directory of Open Access Journals (Sweden)

    Elise Ketelaars

    2014-12-01

    Full Text Available This article reviews Transitional Justice, Culture and Society: Beyond Outreach, edited by Clara Ramírez-Barat, International Center for Transitional Justice, New York: Social Science Research Council, 2014 ISBN 978-0-911400-02-1

  15. Multimedia communications and networking

    CERN Document Server

    da Silva, Mario Marques

    2012-01-01

    The result of decades of research and international project experience, Multimedia Communications and Networking provides authoritative insight into recent developments in multimedia, digital communications, and networking services and technologies. Supplying you with the required foundation in these areas, it illustrates the means that will allow for improved digital communications and networks. The book starts with a review of the fundamental concepts, requirements, and constraints in networks and telecommunications. It describes channel disturbances that can hinder system performance--inclu

  16. Does Social Justice Ground Democracy in Education or Does Democracy Ground Social Justice?

    Science.gov (United States)

    Fraser-Burgess, Sheron

    2013-01-01

    The author examines one particular systematic and normative theorization of social justice in Barry Bull's "Social Justice in Education." Bull embarks on a timely and ambitious theory-to-practice project of grounding an educational theory of social justice in Rawls's seminal, liberal, distributive justice tome. The author…

  17. Global health justice and governance.

    Science.gov (United States)

    Ruger, Jennifer Prah

    2012-01-01

    While there is a growing body of work on moral issues and global governance in the fields of global justice and international relations, little work has connected principles of global health justice with those of global health governance for a theory of global health. Such a theory would enable analysis and evaluation of the current global health system and would ethically and empirically ground proposals for reforming it to more closely align with moral values. Global health governance has been framed as an issue of national security, human security, human rights, and global public goods. The global health governance literature is essentially untethered to a theorized framework to illuminate or evaluate governance. This article ties global health justice and ethics to principles for governing the global health realm, developing a theoretical framework for global and domestic institutions and actors.

  18. A temporal cloak at telecommunication data rate.

    Science.gov (United States)

    Lukens, Joseph M; Leaird, Daniel E; Weiner, Andrew M

    2013-06-13

    Through advances in metamaterials--artificially engineered media with exotic properties, including negative refractive index--the once fanciful invisibility cloak has now assumed a prominent place in scientific research. By extending these concepts to the temporal domain, investigators have recently described a cloak which hides events in time by creating a temporal gap in a probe beam that is subsequently closed up; any interaction which takes place during this hole in time is not detected. However, these results are limited to isolated events that fill a tiny portion of the temporal period, giving a fractional cloaking window of only about 10(-4) per cent at a repetition rate of 41 kilohertz (ref. 15)--which is much too low for applications such as optical communications. Here we demonstrate another technique for temporal cloaking, which operates at telecommunication data rates and, by exploiting temporal self-imaging through the Talbot effect, hides optical data from a receiver. We succeed in cloaking 46 per cent of the entire time axis and conceal pseudorandom digital data at a rate of 12.7 gigabits per second. This potential to cloak real-world messages introduces temporal cloaking into the sphere of practical application, with immediate ramifications in secure communications.

  19. VARTA micro batteries for wireless telecommunication devices

    Science.gov (United States)

    Ilic, D.; Heydecke, J.; Kilb, M.; Knop, I.; Schulz, G.

    Newly developed nickel-metal hydride (Ni/MH) micro cells that are capable of high rates, meet the requirements of main power sources for modern wireless telecommunication devices, like GSM hand phones, PDAs and others. Besides having the capability to give high continuous and pulse discharge currents, they also ensure the realisation of a device with slim design and low cost. For the back-up of the RTC function, a lithium-ion cell based on the carbon-manganese dioxide system provides high reliability by having a long cycle life and complete tolerance to deep discharge. For MBU (which require higher rates), a Ni/MH cell only 2 mm thick is now being introduced. Other wireless devices, like headsets for comfortable use of mobiles whilst driving, wireless mice and keyboards and the upcoming "Bluetooth" technology will need suitable power sources. Besides the rather high currents, which exclude low-power lithium systems, miniaturisation is limiting the space available for the battery. Some concepts using Ni/MH micro batteries will be discussed in this paper.

  20. Space Telecommunications Radio System (STRS) Compliance Testing

    Science.gov (United States)

    Handler, Louis M.

    2011-01-01

    The Space Telecommunications Radio System (STRS) defines an open architecture for software defined radios. This document describes the testing methodology to aid in determining the degree of compliance to the STRS architecture. Non-compliances are reported to the software and hardware developers as well as the NASA project manager so that any non-compliances may be fixed or waivers issued. Since the software developers may be divided into those that provide the operating environment including the operating system and STRS infrastructure (OE) and those that supply the waveform applications, the tests are divided accordingly. The static tests are also divided by the availability of an automated tool that determines whether the source code and configuration files contain the appropriate items. Thus, there are six separate step-by-step test procedures described as well as the corresponding requirements that they test. The six types of STRS compliance tests are: STRS application automated testing, STRS infrastructure automated testing, STRS infrastructure testing by compiling WFCCN with the infrastructure, STRS configuration file testing, STRS application manual code testing, and STRS infrastructure manual code testing. Examples of the input and output of the scripts are shown in the appendices as well as more specific information about what to configure and test in WFCCN for non-compliance. In addition, each STRS requirement is listed and the type of testing briefly described. Attached is also a set of guidelines on what to look for in addition to the requirements to aid in the document review process.