WorldWideScience

Sample records for reachability multiprocess service

  1. Reachable volume RRT

    KAUST Repository

    McMahon, Troy

    2015-05-01

    © 2015 IEEE. Reachable volumes are a new technique that allows one to efficiently restrict sampling to feasible/reachable regions of the planning space even for high degree of freedom and highly constrained problems. However, they have so far only been applied to graph-based sampling-based planners. In this paper we develop the methodology to apply reachable volumes to tree-based planners such as Rapidly-Exploring Random Trees (RRTs). In particular, we propose a reachable volume RRT called RVRRT that can solve high degree of freedom problems and problems with constraints. To do so, we develop a reachable volume stepping function, a reachable volume expand function, and a distance metric based on these operations. We also present a reachable volume local planner to ensure that local paths satisfy constraints for methods such as PRMs. We show experimentally that RVRRTs can solve constrained problems with as many as 64 degrees of freedom and unconstrained problems with as many as 134 degrees of freedom. RVRRTs can solve problems more efficiently than existing methods, requiring fewer nodes and collision detection calls. We also show that it is capable of solving difficult problems that existing methods cannot.

  2. Reachable volume RRT

    KAUST Repository

    McMahon, Troy; Thomas, Shawna; Amato, Nancy M.

    2015-01-01

    © 2015 IEEE. Reachable volumes are a new technique that allows one to efficiently restrict sampling to feasible/reachable regions of the planning space even for high degree of freedom and highly constrained problems. However, they have so far only been applied to graph-based sampling-based planners. In this paper we develop the methodology to apply reachable volumes to tree-based planners such as Rapidly-Exploring Random Trees (RRTs). In particular, we propose a reachable volume RRT called RVRRT that can solve high degree of freedom problems and problems with constraints. To do so, we develop a reachable volume stepping function, a reachable volume expand function, and a distance metric based on these operations. We also present a reachable volume local planner to ensure that local paths satisfy constraints for methods such as PRMs. We show experimentally that RVRRTs can solve constrained problems with as many as 64 degrees of freedom and unconstrained problems with as many as 134 degrees of freedom. RVRRTs can solve problems more efficiently than existing methods, requiring fewer nodes and collision detection calls. We also show that it is capable of solving difficult problems that existing methods cannot.

  3. Constraint-based reachability

    Directory of Open Access Journals (Sweden)

    Arnaud Gotlieb

    2013-02-01

    Full Text Available Iterative imperative programs can be considered as infinite-state systems computing over possibly unbounded domains. Studying reachability in these systems is challenging as it requires to deal with an infinite number of states with standard backward or forward exploration strategies. An approach that we call Constraint-based reachability, is proposed to address reachability problems by exploring program states using a constraint model of the whole program. The keypoint of the approach is to interpret imperative constructions such as conditionals, loops, array and memory manipulations with the fundamental notion of constraint over a computational domain. By combining constraint filtering and abstraction techniques, Constraint-based reachability is able to solve reachability problems which are usually outside the scope of backward or forward exploration strategies. This paper proposes an interpretation of classical filtering consistencies used in Constraint Programming as abstract domain computations, and shows how this approach can be used to produce a constraint solver that efficiently generates solutions for reachability problems that are unsolvable by other approaches.

  4. Bidirectional reachability-based modules

    CSIR Research Space (South Africa)

    Nortje, R

    2011-07-01

    Full Text Available The authors introduce an algorithm for MinA extraction in EL based on bidirectional reachability. They obtain a significant reduction in the size of modules extracted at almost no additional cost to that of extracting standard reachability...

  5. Sampling-based motion planning with reachable volumes: Theoretical foundations

    KAUST Repository

    McMahon, Troy

    2014-05-01

    © 2014 IEEE. We introduce a new concept, reachable volumes, that denotes the set of points that the end effector of a chain or linkage can reach. We show that the reachable volume of a chain is equivalent to the Minkowski sum of the reachable volumes of its links, and give an efficient method for computing reachable volumes. We present a method for generating configurations using reachable volumes that is applicable to various types of robots including open and closed chain robots, tree-like robots, and complex robots including both loops and branches. We also describe how to apply constraints (both on end effectors and internal joints) using reachable volumes. Unlike previous methods, reachable volumes work for spherical and prismatic joints as well as planar joints. Visualizations of reachable volumes can allow an operator to see what positions the robot can reach and can guide robot design. We present visualizations of reachable volumes for representative robots including closed chains and graspers as well as for examples with joint and end effector constraints.

  6. Sampling-based motion planning with reachable volumes: Theoretical foundations

    KAUST Repository

    McMahon, Troy; Thomas, Shawna; Amato, Nancy M.

    2014-01-01

    © 2014 IEEE. We introduce a new concept, reachable volumes, that denotes the set of points that the end effector of a chain or linkage can reach. We show that the reachable volume of a chain is equivalent to the Minkowski sum of the reachable volumes of its links, and give an efficient method for computing reachable volumes. We present a method for generating configurations using reachable volumes that is applicable to various types of robots including open and closed chain robots, tree-like robots, and complex robots including both loops and branches. We also describe how to apply constraints (both on end effectors and internal joints) using reachable volumes. Unlike previous methods, reachable volumes work for spherical and prismatic joints as well as planar joints. Visualizations of reachable volumes can allow an operator to see what positions the robot can reach and can guide robot design. We present visualizations of reachable volumes for representative robots including closed chains and graspers as well as for examples with joint and end effector constraints.

  7. Extending ALCQIO with reachability

    OpenAIRE

    Kotek, Tomer; Simkus, Mantas; Veith, Helmut; Zuleger, Florian

    2014-01-01

    We introduce a description logic ALCQIO_{b,Re} which adds reachability assertions to ALCQIO, a sub-logic of the two-variable fragment of first order logic with counting quantifiers. ALCQIO_{b,Re} is well-suited for applications in software verification and shape analysis. Shape analysis requires expressive logics which can express reachability and have good computational properties. We show that ALCQIO_{b,Re} can describe complex data structures with a high degree of sharing and allows compos...

  8. Improvement of multiprocessing performance by using optical centralized shared bus

    Science.gov (United States)

    Han, Xuliang; Chen, Ray T.

    2004-06-01

    With the ever-increasing need to solve larger and more complex problems, multiprocessing is attracting more and more research efforts. One of the challenges facing the multiprocessor designers is to fulfill in an effective manner the communications among the processes running in parallel on multiple multiprocessors. The conventional electrical backplane bus provides narrow bandwidth as restricted by the physical limitations of electrical interconnects. In the electrical domain, in order to operate at high frequency, the backplane topology has been changed from the simple shared bus to the complicated switched medium. However, the switched medium is an indirect network. It cannot support multicast/broadcast as effectively as the shared bus. Besides the additional latency of going through the intermediate switching nodes, signal routing introduces substantial delay and considerable system complexity. Alternatively, optics has been well known for its interconnect capability. Therefore, it has become imperative to investigate how to improve multiprocessing performance by utilizing optical interconnects. From the implementation standpoint, the existing optical technologies still cannot fulfill the intelligent functions that a switch fabric should provide as effectively as their electronic counterparts. Thus, an innovative optical technology that can provide sufficient bandwidth capacity, while at the same time, retaining the essential merits of the shared bus topology, is highly desirable for the multiprocessing performance improvement. In this paper, the optical centralized shared bus is proposed for use in the multiprocessing systems. This novel optical interconnect architecture not only utilizes the beneficial characteristics of optics, but also retains the desirable properties of the shared bus topology. Meanwhile, from the architecture standpoint, it fits well in the centralized shared-memory multiprocessing scheme. Therefore, a smooth migration with substantial

  9. Stochastic Reachability Analysis of Hybrid Systems

    CERN Document Server

    Bujorianu, Luminita Manuela

    2012-01-01

    Stochastic reachability analysis (SRA) is a method of analyzing the behavior of control systems which mix discrete and continuous dynamics. For probabilistic discrete systems it has been shown to be a practical verification method but for stochastic hybrid systems it can be rather more. As a verification technique SRA can assess the safety and performance of, for example, autonomous systems, robot and aircraft path planning and multi-agent coordination but it can also be used for the adaptive control of such systems. Stochastic Reachability Analysis of Hybrid Systems is a self-contained and accessible introduction to this novel topic in the analysis and development of stochastic hybrid systems. Beginning with the relevant aspects of Markov models and introducing stochastic hybrid systems, the book then moves on to coverage of reachability analysis for stochastic hybrid systems. Following this build up, the core of the text first formally defines the concept of reachability in the stochastic framework and then...

  10. Multiprocessing MCNP on an IBN RS/6000 cluster

    International Nuclear Information System (INIS)

    McKinney, G.W.; West, J.T.

    1993-01-01

    The advent of high-performance computer systems has brought to maturity programming concepts like vectorization, multiprocessing, and multitasking. While there are many schools of thought as to the most significant factor in obtaining order-of-magnitude increases in performance, such speedup can only be achieved by integrating the computer system and application code. Vectorization leads to faster manipulation of arrays by overlapping instruction CPU cycles. Discrete ordinates codes, which require the solving of large matrices, have proved to be major benefactors of vectorization. Monte Carlo transport, on the other hand, typically contains numerous logic statements and requires extensive redevelopment to benefit from vectorization. Multiprocessing and multitasking provide additional CPU cycles via multiple processors. Such systems are generally designed with either common memory access (multitasking) or distributed memory access. In both cases, theoretical speedup, as a function of the number of processors P and the fraction f of task time that multiprocesses, can be formulated using Amdahl's law: S(f, P) =1/(1-f+f/P). However, for most applications, this theoretical limit cannot be achieved because of additional terms (e.g., multitasking overhead, memory overlap, etc.) that are not included in Amdahl's law. Monte Carlo transport is a natural candidate for multiprocessing because the particle tracks are generally independent, and the precision of the result increases as the square Foot of the number of particles tracked

  11. Reachability for Finite-State Process Algebras Using Static Analysis

    DEFF Research Database (Denmark)

    Skrypnyuk, Nataliya; Nielson, Flemming

    2011-01-01

    of the Data Flow Analysis are used in order to “cut off” some of the branches in the reachability analysis that are not important for determining, whether or not a state is reachable. In this way, it is possible for our reachability algorithm to avoid building large parts of the system altogether and still......In this work we present an algorithm for solving the reachability problem in finite systems that are modelled with process algebras. Our method uses Static Analysis, in particular, Data Flow Analysis, of the syntax of a process algebraic system with multi-way synchronisation. The results...... solve the reachability problem in a precise way....

  12. Error detection in GPS observations by means of Multi-process models

    DEFF Research Database (Denmark)

    Thomsen, Henrik F.

    2001-01-01

    The main purpose of this article is to present the idea of using Multi-process models as a method of detecting errors in GPS observations. The theory behind Multi-process models, and double differenced phase observations in GPS is presented shortly. It is shown how to model cycle slips in the Mul...

  13. The power of reachability testing for timed automata

    DEFF Research Database (Denmark)

    Aceto, Luca; Bouyer, Patricia; Burgueno, A.

    2003-01-01

    The computational engine of the verification tool UPPAAL consists of a collection of efficient algorithms for the analysis of reachability properties of systems. Model-checking of properties other than plain reachability ones may currently be carried out in such a tool as follows. Given a propert...... be reached. Finally, the property language characterizing the power of reachability testing is used to provide a definition of characteristic properties with respect to a timed version of the ready simulation preorder, for nodes of tau-free, deterministic timed automata....

  14. Minimum-Cost Reachability for Priced Timed Automata

    DEFF Research Database (Denmark)

    Behrmann, Gerd; Fehnker, Ansgar; Hune, Thomas Seidelin

    2001-01-01

    This paper introduces the model of linearly priced timed automata as an extension of timed automata, with prices on both transitions and locations. For this model we consider the minimum-cost reachability problem: i.e. given a linearly priced timed automaton and a target state, determine...... the minimum cost of executions from the initial state to the target state. This problem generalizes the minimum-time reachability problem for ordinary timed automata. We prove decidability of this problem by offering an algorithmic solution, which is based on a combination of branch-and-bound techniques...... and a new notion of priced regions. The latter allows symbolic representation and manipulation of reachable states together with the cost of reaching them....

  15. Distributed Algorithms for Time Optimal Reachability Analysis

    DEFF Research Database (Denmark)

    Zhang, Zhengkui; Nielsen, Brian; Larsen, Kim Guldstrand

    2016-01-01

    . We propose distributed computing to accelerate time optimal reachability analysis. We develop five distributed state exploration algorithms, implement them in \\uppaal enabling it to exploit the compute resources of a dedicated model-checking cluster. We experimentally evaluate the implemented...... algorithms with four models in terms of their ability to compute near- or proven-optimal solutions, their scalability, time and memory consumption and communication overhead. Our results show that distributed algorithms work much faster than sequential algorithms and have good speedup in general.......Time optimal reachability analysis is a novel model based technique for solving scheduling and planning problems. After modeling them as reachability problems using timed automata, a real-time model checker can compute the fastest trace to the goal states which constitutes a time optimal schedule...

  16. Deducing the reachable space from fingertip positions.

    Science.gov (United States)

    Hai-Trieu Pham; Pathirana, Pubudu N

    2015-01-01

    The reachable space of the hand has received significant interests in the past from relevant medical researchers and health professionals. The reachable space was often computed from the joint angles acquired from a motion capture system such as gloves or markers attached to each bone of the finger. However, the contact between the hand and device can cause difficulties particularly for hand with injuries, burns or experiencing certain dermatological conditions. This paper introduces an approach to find the reachable space of the hand in a non-contact measurement form utilizing the Leap Motion Controller. The approach is based on the analysis of each position in the motion path of the fingertip acquired by the Leap Motion Controller. For each position of the fingertip, the inverse kinematic problem was solved under the physiological multiple constraints of the human hand to find a set of all possible configurations of three finger joints. Subsequently, all the sets are unified to form a set of all possible configurations specific for that motion. Finally, a reachable space is computed from the configuration corresponding to the complete extension and the complete flexion of the finger joint angles in this set.

  17. Single wafer rapid thermal multiprocessing

    International Nuclear Information System (INIS)

    Saraswat, K.C.; Moslehi, M.M.; Grossman, D.D.; Wood, S.; Wright, P.; Booth, L.

    1989-01-01

    Future success in microelectronics will demand rapid innovation, rapid product introduction and ability to react to a change in technological and business climate quickly. These technological advances in integrated electronics will require development of flexible manufacturing technology for VLSI systems. However, the current approach of establishing factories for mass manufacturing of chips at a cost of more than 200 million dollars is detrimental to flexible manufacturing. The authors propose concepts of a micro factory which may be characterized by more economical small scale production, higher flexibility to accommodate many products on several processes, and faster turnaround and learning. In-situ multiprocessing equipment where several process steps can be done in sequence may be a key ingredient in this approach. For this environment to be flexible, the equipment must have ability to change processing environment, requiring extensive in-situ measurements and real time control. This paper describes the development of a novel single wafer rapid thermal multiprocessing (RTM) reactor for next generation flexible VLSI manufacturing. This reactor will combine lamp heating, remote microwave plasma and photo processing in a single cold-wall chamber, with applications for multilayer in-situ growth and deposition of dielectrics, semiconductors and metals

  18. Multicore in Production: Advantages and Limits of the Multiprocess Approach

    CERN Document Server

    Binet, S; The ATLAS collaboration; Lavrijsen, W; Leggett, Ch; Lesny, D; Jha, M K; Severini, H; Smith, D; Snyder, S; Tatarkhanov, M; Tsulaia, V; van Gemmeren, P; Washbrook, A

    2011-01-01

    The shared memory architecture of multicore CPUs provides HENP developers with the opportunity to reduce the memory footprint of their applications by sharing memory pages between the cores in a processor. ATLAS pioneered the multi-process approach to parallelizing HENP applications. Using Linux fork() and the Copy On Write mechanism we implemented a simple event task farm which allows to share up to 50% memory pages among event worker processes with negligible CPU overhead. By leaving the task of managing shared memory pages to the operating system, we have been able to run in parallel large reconstruction and simulation applications originally written to be run in a single thread of execution with little to no change to the application code. In spite of this, the process of validating athena multi-process for production took ten months of concentrated effort and is expected to continue for several more months. In general terms, we had two classes of problems in the multi-process port: merging the output fil...

  19. Reachability analysis of real-time systems using time Petri nets.

    Science.gov (United States)

    Wang, J; Deng, Y; Xu, G

    2000-01-01

    Time Petri nets (TPNs) are a popular Petri net model for specification and verification of real-time systems. A fundamental and most widely applied method for analyzing Petri nets is reachability analysis. The existing technique for reachability analysis of TPNs, however, is not suitable for timing property verification because one cannot derive end-to-end delay in task execution, an important issue for time-critical systems, from the reachability tree constructed using the technique. In this paper, we present a new reachability based analysis technique for TPNs for timing property analysis and verification that effectively addresses the problem. Our technique is based on a concept called clock-stamped state class (CS-class). With the reachability tree generated based on CS-classes, we can directly compute the end-to-end time delay in task execution. Moreover, a CS-class can be uniquely mapped to a traditional state class based on which the conventional reachability tree is constructed. Therefore, our CS-class-based analysis technique is more general than the existing technique. We show how to apply this technique to timing property verification of the TPN model of a command and control (C2) system.

  20. Planning with Reachable Distances

    KAUST Repository

    Tang, Xinyu; Thomas, Shawna; Amato, Nancy M.

    2009-01-01

    reachable distance space (RD-space), in which all configurations lie in the set of constraint-satisfying subspaces. This enables us to directly sample the constrained subspaces with complexity linear in the robot's number of degrees of freedom. In addition

  1. Asymmetric Multiprocessing on the ARM Cortex-A9

    OpenAIRE

    Riša, Michal

    2015-01-01

    Asymetrický multiprocessing (AMP) je způsob rozdělování zátěže počítačového systému na heterogenní hardwarové a softwarové prostředí. Tato práce popisuje principy AMP se zaměřením na ARM Cortex--A9 procesor a Altera Cyclone V hardwarovou platformu. Postup tvorby AMP systému založeného na OpenAMP frameworku ukazujícího komunikaci mezi procesorovými jádry, dokumentace a prognóza budoucího vývoje jsou výstupy této práce. Asymmetric multiprocessing (AMP) is a way of distributing computer syste...

  2. Minimum-Cost Reachability for Priced Timed Automata

    DEFF Research Database (Denmark)

    Behrmann, Gerd; Fehnker, Ansgar; Hune, Thomas Seidelin

    2001-01-01

    This paper introduces the model of linearly priced timed automata as an extension of timed automata, with prices on both transitions and locations. For this model we consider the minimum-cost reachability problem: i.e. given a linearly priced timed automaton and a target state, determine...... the minimum cost of executions from the initial state to the target state. This problem generalizes the minimum-time reachability problem for ordinary timed automata. We prove decidability of this problem by offering an algorithmic solution, which is based on a combination of branch-and-bound techniques...

  3. TAPAAL and Reachability Analysis of P/T Nets

    DEFF Research Database (Denmark)

    Jensen, Jonas Finnemann; Nielsen, Thomas Søndersø; Østergaard, Lars Kærlund

    2016-01-01

    We discuss selected model checking techniques used in the tool TAPAAL for the reachability analysis of weighted Petri nets with inhibitor arcs. We focus on techniques that had the most significant effect at the 2015 Model Checking Contest (MCC). While the techniques are mostly well known, our...... contribution lies in their adaptation to the MCC reachability queries, their efficient implementation and the evaluation of their performance on a large variety of nets from MCC'15....

  4. Reachability cuts for the vehicle routing problem with time windows

    DEFF Research Database (Denmark)

    Lysgaard, Jens

    2004-01-01

    This paper introduces a class of cuts, called reachability cuts, for the Vehicle Routing Problem with Time Windows (VRPTW). Reachability cuts are closely related to cuts derived from precedence constraints in the Asymmetric Traveling Salesman Problem with Time Windows and to k-path cuts...

  5. Monitoring Poisson time series using multi-process models

    DEFF Research Database (Denmark)

    Engebjerg, Malene Dahl Skov; Lundbye-Christensen, Søren; Kjær, Birgitte B.

    aspects of health resource management may also be addressed. In this paper we center on the detection of outbreaks of infectious diseases. This is achieved by a multi-process Poisson state space model taking autocorrelation and overdispersion into account, which has been applied to a data set concerning...

  6. Sampling based motion planning with reachable volumes: Application to manipulators and closed chain systems

    KAUST Repository

    McMahon, Troy

    2014-09-01

    © 2014 IEEE. Reachable volumes are a geometric representation of the regions the joints of a robot can reach. They can be used to generate constraint satisfying samples for problems including complicated linkage robots (e.g. closed chains and graspers). They can also be used to assist robot operators and to help in robot design.We show that reachable volumes have an O(1) complexity in unconstrained problems as well as in many constrained problems. We also show that reachable volumes can be computed in linear time and that reachable volume samples can be generated in linear time in problems without constraints. We experimentally validate reachable volume sampling, both with and without constraints on end effectors and/or internal joints. We show that reachable volume samples are less likely to be invalid due to self-collisions, making reachable volume sampling significantly more efficient for higher dimensional problems. We also show that these samples are easier to connect than others, resulting in better connected roadmaps. We demonstrate that our method can be applied to 262-dof, multi-loop, and tree-like linkages including combinations of planar, prismatic and spherical joints. In contrast, existing methods either cannot be used for these problems or do not produce good quality solutions.

  7. Sampling based motion planning with reachable volumes: Application to manipulators and closed chain systems

    KAUST Repository

    McMahon, Troy; Thomas, Shawna; Amato, Nancy M.

    2014-01-01

    © 2014 IEEE. Reachable volumes are a geometric representation of the regions the joints of a robot can reach. They can be used to generate constraint satisfying samples for problems including complicated linkage robots (e.g. closed chains and graspers). They can also be used to assist robot operators and to help in robot design.We show that reachable volumes have an O(1) complexity in unconstrained problems as well as in many constrained problems. We also show that reachable volumes can be computed in linear time and that reachable volume samples can be generated in linear time in problems without constraints. We experimentally validate reachable volume sampling, both with and without constraints on end effectors and/or internal joints. We show that reachable volume samples are less likely to be invalid due to self-collisions, making reachable volume sampling significantly more efficient for higher dimensional problems. We also show that these samples are easier to connect than others, resulting in better connected roadmaps. We demonstrate that our method can be applied to 262-dof, multi-loop, and tree-like linkages including combinations of planar, prismatic and spherical joints. In contrast, existing methods either cannot be used for these problems or do not produce good quality solutions.

  8. Reachability problems in scheduling and planning

    NARCIS (Netherlands)

    Eggermont, C.E.J.

    2012-01-01

    Reachability problems are fundamental in the context of many mathematical models and abstractions which describe various computational processes. Intuitively, when many objects move within a shared environment, objects may have to wait for others before moving and so slow down, or objects may even

  9. Internal ellipsoidal estimates of reachable set of impulsive control systems

    Energy Technology Data Exchange (ETDEWEB)

    Matviychuk, Oksana G. [Institute of Mathematics and Mechanics, Russian Academy of Sciences, 16 S. Kovalevskaya str., Ekaterinburg, 620990, Russia and Ural Federal University, 19 Mira str., Ekaterinburg, 620002 (Russian Federation)

    2014-11-18

    A problem of estimating reachable sets of linear impulsive control system with uncertainty in initial data is considered. The impulsive controls in the dynamical system belong to the intersection of a special cone with a generalized ellipsoid both taken in the space of functions of bounded variation. Assume that an ellipsoidal state constraints are imposed. The algorithms for constructing internal ellipsoidal estimates of reachable sets for such control systems and numerical simulation results are given.

  10. On the reachability and observability of path and cycle graphs

    OpenAIRE

    Parlangeli, Gianfranco; Notarstefano, Giuseppe

    2011-01-01

    In this paper we investigate the reachability and observability properties of a network system, running a Laplacian based average consensus algorithm, when the communication graph is a path or a cycle. More in detail, we provide necessary and sufficient conditions, based on simple algebraic rules from number theory, to characterize all and only the nodes from which the network system is reachable (respectively observable). Interesting immediate corollaries of our results are: (i) a path graph...

  11. Time Optimal Reachability Analysis Using Swarm Verification

    DEFF Research Database (Denmark)

    Zhang, Zhengkui; Nielsen, Brian; Larsen, Kim Guldstrand

    2016-01-01

    Time optimal reachability analysis employs model-checking to compute goal states that can be reached from an initial state with a minimal accumulated time duration. The model-checker may produce a corresponding diagnostic trace which can be interpreted as a feasible schedule for many scheduling...... and planning problems, response time optimization etc. We propose swarm verification to accelerate time optimal reachability using the real-time model-checker Uppaal. In swarm verification, a large number of model checker instances execute in parallel on a computer cluster using different, typically randomized...... search strategies. We develop four swarm algorithms and evaluate them with four models in terms scalability, and time- and memory consumption. Three of these cooperate by exchanging costs of intermediate solutions to prune the search using a branch-and-bound approach. Our results show that swarm...

  12. Reachability modules for the description logic SRIQ

    CSIR Research Space (South Africa)

    Nortje, R

    2013-12-01

    Full Text Available In this paper we investigate module extraction for the Description Logic SRIQ. We formulate modules in terms of the reachability problem for directed hypergraphs. Using inseperability relations, we investigate the module-theoretic properties...

  13. Advanced single-wafer sequential multiprocessing techniques for semiconductor device fabrication

    International Nuclear Information System (INIS)

    Moslehi, M.M.; Davis, C.

    1989-01-01

    Single-wafer integrated in-situ multiprocessing (SWIM) is recognized as the future trend for advanced microelectronics production in flexible fast turn- around computer-integrated semiconductor manufacturing environments. The SWIM equipment technology and processing methodology offer enhanced equipment utilization, improved process reproducibility and yield, and reduced chip manufacturing cost. They also provide significant capabilities for fabrication of new and improved device structures. This paper describes the SWIM techniques and presents a novel single-wafer advanced vacuum multiprocessing technology developed based on the use of multiple process energy/activation sources (lamp heating and remote microwave plasma) for multilayer epitaxial and polycrystalline semiconductor as well as dielectric film processing. Based on this technology, multilayer in-situ-doped homoepitaxial silicon and heteroepitaxial strained layer Si/Ge x Si 1 - x /Si structures have been grown and characterized. The process control and the ultimate interfacial abruptness of the layer-to-layer transition widths in the device structures prepared by this technology will challenge the MBE techniques in multilayer epitaxial growth applications

  14. Mobility Tolerant Firework Routing for Improving Reachability in MANETs

    Directory of Open Access Journals (Sweden)

    Gen Motoyoshi

    2014-03-01

    Full Text Available In this paper, we investigate our mobility-assisted and adaptive broadcast routing mechanism, called Mobility Tolerant Firework Routing (MTFR, which utilizes the concept of potentials for routing and improves node reachability, especially in situations with high mobility, by including a broadcast mechanism. We perform detailed evaluations by simulations in a mobile environment and demonstrate the advantages of MTFR over conventional potential-based routing. In particular, we show that MTFR produces better reachability in many aspects at the expense of a small additional transmission delay and intermediate traffic overhead, making MTFR a promising routing protocol and feasible for future mobile Internet infrastructures.

  15. Functional range of movement of the hand: declination angles to reachable space.

    Science.gov (United States)

    Pham, Hai Trieu; Pathirana, Pubudu N; Caelli, Terry

    2014-01-01

    The measurement of the range of hand joint movement is an essential part of clinical practice and rehabilitation. Current methods use three finger joint declination angles of the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints. In this paper we propose an alternate form of measurement for the finger movement. Using the notion of reachable space instead of declination angles has significant advantages. Firstly, it provides a visual and quantifiable method that therapists, insurance companies and patients can easily use to understand the functional capabilities of the hand. Secondly, it eliminates the redundant declination angle constraints. Finally, reachable space, defined by a set of reachable fingertip positions, can be measured and constructed by using a modern camera such as Creative Senz3D or built-in hand gesture sensors such as the Leap Motion Controller. Use of cameras or optical-type sensors for this purpose have considerable benefits such as eliminating and minimal involvement of therapist errors, non-contact measurement in addition to valuable time saving for the clinician. A comparison between using declination angles and reachable space were made based on Hume's experiment on functional range of movement to prove the efficiency of this new approach.

  16. Predicting multiprocessing efficiency on the Cray multiprocessors in a (CTSS) time-sharing environment/application to a 3-D magnetohydrodynamics code

    International Nuclear Information System (INIS)

    Mirin, A.A.

    1988-01-01

    A formula is derived for predicting multiprocessing efficiency on Cray supercomputers equipped with the Cray Time-Sharing System (CTSS). The model is applicable to an intensive time-sharing environment. The actual efficiency estimate depends on three factors: the code size, task length, and job mix. The implementation of multitasking in a three-dimensional plasma magnetohydrodynamics (MHD) code, TEMCO, is discussed. TEMCO solves the primitive one-fluid compressible MHD equations and includes resistive and Hall effects in Ohm's law. Virtually all segments of the main time-integration loop are multitasked. The multiprocessing efficiency model is applied to TEMCO. Excellent agreement is obtained between the actual multiprocessing efficiency and the theoretical prediction

  17. Reachability Trees for High-level Petri Nets

    DEFF Research Database (Denmark)

    Jensen, Kurt; Jensen, Arne M.; Jepsen, Leif Obel

    1986-01-01

    the necessary analysis methods. In other papers it is shown how to generalize the concept of place- and transition invariants from place/transition nets to high-level Petri nets. Our present paper contributes to this with a generalization of reachability trees, which is one of the other important analysis...

  18. Winning Concurrent Reachability Games Requires Doubly-Exponential Patience

    DEFF Research Database (Denmark)

    Hansen, Kristoffer Arnsfelt; Koucký, Michal; Miltersen, Peter Bro

    2009-01-01

    We exhibit a deterministic concurrent reachability game PURGATORYn with n non-terminal positions and a binary choice for both players in every position so that any positional strategy for Player 1 achieving the value of the game within given isin ... that are less than (isin2/(1 - isin))2n-2 . Also, even to achieve the value within say 1 - 2-n/2, doubly exponentially small behavior probabilities in the number of positions must be used. This behavior is close to worst case: We show that for any such game and 0 ... with all non-zero behavior probabilities being 20(n) at least isin2O(n). As a corollary to our results, we conclude that any (deterministic or nondeterministic) algorithm that given a concurrent reachability game explicitly manipulates isin-optimal strategies for Player 1 represented in several standard...

  19. Bisimulation, Logic and Reachability Analysis for Markovian Systems

    NARCIS (Netherlands)

    Bujorianu, L.M.; Bujorianu, M.C.

    2008-01-01

    In the recent years, there have been a large amount of investigations on safety verification of uncertain continuous systems. In engineering and applied mathematics, this verification is called stochastic reachability analysis, while in computer science this is called probabilistic model checking

  20. Reachability for Finite-state Process Algebras Using Horn Clauses

    DEFF Research Database (Denmark)

    Skrypnyuk, Nataliya; Nielson, Flemming

    2013-01-01

    of the Data Flow Analysis are used in order to build a set of Horn clauses whose least model corresponds to an overapproximation of the reachable states. The computed model can be refined after each transition, and the algorithm runs until either a state whose reachability should be checked is encountered...... or it is not in the least model for all constructed states and thus is definitely unreachable. The advantages of the algorithm are that in many cases only a part of the Labelled Transition System will be built which leads to lower time and memory consumption. Also, it is not necessary to save all the encountered states...... which leads to further reduction of the memory requirements of the algorithm....

  1. Exponential formula for the reachable sets of quantum stochastic differential inclusions

    International Nuclear Information System (INIS)

    Ayoola, E.O.

    2001-07-01

    We establish an exponential formula for the reachable sets of quantum stochastic differential inclusions (QSDI) which are locally Lipschitzian with convex values. Our main results partially rely on an auxiliary result concerning the density, in the topology of the locally convex space of solutions, of the set of trajectories whose matrix elements are continuously differentiable By applying the exponential formula, we obtain results concerning convergence of the discrete approximations of the reachable set of the QSDI. This extends similar results of Wolenski for classical differential inclusions to the present noncommutative quantum setting. (author)

  2. Optimal Conditional Reachability for Multi-Priced Timed Automata

    DEFF Research Database (Denmark)

    Larsen, Kim Guldstrand; Rasmussen, Jacob Illum

    2005-01-01

    In this paper, we prove decidability of the optimal conditional reachability problem for multi-priced timed automata, an extension of timed automata with multiple cost variables evolving according to given rates for each location. More precisely, we consider the problem of determining the minimal...

  3. Mutual proximity graphs for improved reachability in music recommendation.

    Science.gov (United States)

    Flexer, Arthur; Stevens, Jeff

    2018-01-01

    This paper is concerned with the impact of hubness, a general problem of machine learning in high-dimensional spaces, on a real-world music recommendation system based on visualisation of a k-nearest neighbour (knn) graph. Due to a problem of measuring distances in high dimensions, hub objects are recommended over and over again while anti-hubs are nonexistent in recommendation lists, resulting in poor reachability of the music catalogue. We present mutual proximity graphs, which are an alternative to knn and mutual knn graphs, and are able to avoid hub vertices having abnormally high connectivity. We show that mutual proximity graphs yield much better graph connectivity resulting in improved reachability compared to knn graphs, mutual knn graphs and mutual knn graphs enhanced with minimum spanning trees, while simultaneously reducing the negative effects of hubness.

  4. Replication, refinement & reachability: complexity in dynamic condition-response graphs

    DEFF Research Database (Denmark)

    Debois, Søren; Hildebrandt, Thomas T.; Slaats, Tijs

    2017-01-01

    We explore the complexity of reachability and run-time refinement under safety and liveness constraints in event-based process models. Our study is framed in the DCR? process language, which supports modular specification through a compositional operational semantics. DCR? encompasses the “Dynami...

  5. A multi-process phytoremediation system for removal of polycyclic aromatic hydrocarbons from contaminated soils

    International Nuclear Information System (INIS)

    Huang Xiaodong; El-Alawi, Yousef; Penrose, Donna M.; Glick, Bernard R.; Greenberg, Bruce M.

    2004-01-01

    To improve phytoremediation processes, multiple techniques that comprise different aspects of contaminant removal from soils have been combined. Using creosote as a test contaminant, a multi-process phytoremediation system composed of physical (volatilization), photochemical (photooxidation) and microbial remediation, and phytoremediation (plant-assisted remediation) processes was developed. The techniques applied to realize these processes were land-farming (aeration and light exposure), introduction of contaminant degrading bacteria, plant growth promoting rhizobacteria (PGPR), and plant growth of contaminant-tolerant tall fescue (Festuca arundinacea). Over a 4-month period, the average efficiency of removal of 16 priority PAHs by the multi-process remediation system was twice that of land-farming, 50% more than bioremediation alone, and 45% more than phytoremediation by itself. Importantly, the multi-process system was capable of removing most of the highly hydrophobic, soil-bound PAHs from soil. The key elements for successful phytoremediation were the use of plant species that have the ability to proliferate in the presence of high levels of contaminants and strains of PGPR that increase plant tolerance to contaminants and accelerate plant growth in heavily contaminated soils. The synergistic use of these approaches resulted in rapid and massive biomass accumulation of plant tissue in contaminated soil, putatively providing more active metabolic processes, leading to more rapid and more complete removal of PAHs. - Persistent PAH contaminants in soils can be removed more completely and rapidly by using multiple remediation processes

  6. On some methods for improving time of reachability sets computation for the dynamic system control problem

    Science.gov (United States)

    Zimovets, Artem; Matviychuk, Alexander; Ushakov, Vladimir

    2016-12-01

    The paper presents two different approaches to reduce the time of computer calculation of reachability sets. First of these two approaches use different data structures for storing the reachability sets in the computer memory for calculation in single-threaded mode. Second approach is based on using parallel algorithms with reference to the data structures from the first approach. Within the framework of this paper parallel algorithm of approximate reachability set calculation on computer with SMP-architecture is proposed. The results of numerical modelling are presented in the form of tables which demonstrate high efficiency of parallel computing technology and also show how computing time depends on the used data structure.

  7. Symbolic Reachability for Process Algebras with Recursive Data Types

    NARCIS (Netherlands)

    Blom, Stefan; van de Pol, Jan Cornelis; Fitzgerald, J.S.; Haxthausen, A.E.; Yenigun, H.

    2008-01-01

    In this paper, we present a symbolic reachability algorithm for process algebras with recursive data types. Like the various saturation based algorithms of Ciardo et al, the algorithm is based on partitioning of the transition relation into events whose influence is local. As new features, our

  8. The Dynamic Multiprocess Framework: Evidence from Prospective Memory with Contextual Variability

    OpenAIRE

    Scullin, Michael K.; McDaniel, Mark A.; Shelton, Jill Talley

    2013-01-01

    The ability to remember to execute delayed intentions is referred to as prospective memory. Previous theoretical and empirical work has focused on isolating whether a particular prospective memory task is supported either by effortful monitoring processes or by cue-driven spontaneous processes. In the present work, we advance the Dynamic Multiprocess Framework, which contends that both monitoring and spontaneous retrieval may be utilized dynamically to support prospective remembering. To capt...

  9. Reachability analysis for timed automata using max-plus algebra

    DEFF Research Database (Denmark)

    Lu, Qi; Madsen, Michael; Milata, Martin

    2012-01-01

    We show that max-plus polyhedra are usable as a data structure in reachability analysis of timed automata. Drawing inspiration from the extensive work that has been done on difference bound matrices, as well as previous work on max-plus polyhedra in other areas, we develop the algorithms needed...

  10. Improved Undecidability Results for Reachability Games on Recursive Timed Automata

    Directory of Open Access Journals (Sweden)

    Shankara Narayanan Krishna

    2014-08-01

    Full Text Available We study reachability games on recursive timed automata (RTA that generalize Alur-Dill timed automata with recursive procedure invocation mechanism similar to recursive state machines. It is known that deciding the winner in reachability games on RTA is undecidable for automata with two or more clocks, while the problem is decidable for automata with only one clock. Ouaknine and Worrell recently proposed a time-bounded theory of real-time verification by claiming that restriction to bounded-time recovers decidability for several key decision problem related to real-time verification. We revisited games on recursive timed automata with time-bounded restriction in the hope of recovering decidability. However, we found that the problem still remains undecidable for recursive timed automata with three or more clocks. Using similar proof techniques we characterize a decidability frontier for a generalization of RTA to recursive stopwatch automata.

  11. Reachability Analysis in Probabilistic Biological Networks.

    Science.gov (United States)

    Gabr, Haitham; Todor, Andrei; Dobra, Alin; Kahveci, Tamer

    2015-01-01

    Extra-cellular molecules trigger a response inside the cell by initiating a signal at special membrane receptors (i.e., sources), which is then transmitted to reporters (i.e., targets) through various chains of interactions among proteins. Understanding whether such a signal can reach from membrane receptors to reporters is essential in studying the cell response to extra-cellular events. This problem is drastically complicated due to the unreliability of the interaction data. In this paper, we develop a novel method, called PReach (Probabilistic Reachability), that precisely computes the probability that a signal can reach from a given collection of receptors to a given collection of reporters when the underlying signaling network is uncertain. This is a very difficult computational problem with no known polynomial-time solution. PReach represents each uncertain interaction as a bi-variate polynomial. It transforms the reachability problem to a polynomial multiplication problem. We introduce novel polynomial collapsing operators that associate polynomial terms with possible paths between sources and targets as well as the cuts that separate sources from targets. These operators significantly shrink the number of polynomial terms and thus the running time. PReach has much better time complexity than the recent solutions for this problem. Our experimental results on real data sets demonstrate that this improvement leads to orders of magnitude of reduction in the running time over the most recent methods. Availability: All the data sets used, the software implemented and the alignments found in this paper are available at http://bioinformatics.cise.ufl.edu/PReach/.

  12. Cascading effect of contagion in Indian stock market: Evidence from reachable stocks

    Directory of Open Access Journals (Sweden)

    Rajan Sruthi

    2017-12-01

    Full Text Available The financial turbulence in a country percolates to another along the trajectories of reachable stocks owned by foreign investors. To indemnify the losses originating from the crisis country, foreign investors dispose of shares in other markets triggering a contagion in an unrelated market. This paper provides empirical evidence for the stock market crisis that spreads globally through investors owning international portfolios, with special reference to the global financial crisis of 2008–09. Using two-step Limited Information Maximum Likelihood estimation and Murphy-Topel variance estimate, the results show that reachability plays a crucial role in the transposal of distress from one country to another, explaining investor-induced contagion in the Indian stock market.

  13. Methods for Reachability-based Hybrid Controller Design

    Science.gov (United States)

    2012-05-10

    approaches for airport runways ( Teo and Tomlin, 2003). The results of the reachability calculations were validated in extensive simulations as well as...UAV flight experiments (Jang and Tomlin, 2005; Teo , 2005). While the focus of these previous applications lies largely in safety verification, the work...B([15, 0],a0)× [−π,π])\\ V,∀qi ∈ Q, where a0 = 30m is the protected radius (chosen based upon published data of the wingspan of a Boeing KC -135

  14. A Forward Reachability Algorithm for Bounded Timed-Arc Petri Nets

    DEFF Research Database (Denmark)

    David, Alexandre; Jacobsen, Lasse; Jacobsen, Morten

    2012-01-01

    Timed-arc Petri nets (TAPN) are a well-known time extension of thePetri net model and several translations to networks of timedautomata have been proposed for this model.We present a direct, DBM-basedalgorithm for forward reachability analysis of bounded TAPNs extended with transport arcs...

  15. Monomial strategies for concurrent reachability games and other stochastic games

    DEFF Research Database (Denmark)

    Frederiksen, Søren Kristoffer Stiil; Miltersen, Peter Bro

    2013-01-01

    We consider two-player zero-sum finite (but infinite-horizon) stochastic games with limiting average payoffs. We define a family of stationary strategies for Player I parameterized by ε > 0 to be monomial, if for each state k and each action j of Player I in state k except possibly one action, we...... have that the probability of playing j in k is given by an expression of the form c ε d for some non-negative real number c and some non-negative integer d. We show that for all games, there is a monomial family of stationary strategies that are ε-optimal among stationary strategies. A corollary...... is that all concurrent reachability games have a monomial family of ε-optimal strategies. This generalizes a classical result of de Alfaro, Henzinger and Kupferman who showed that this is the case for concurrent reachability games where all states have value 0 or 1....

  16. Reachable Distance Space: Efficient Sampling-Based Planning for Spatially Constrained Systems

    KAUST Repository

    Xinyu Tang,; Thomas, S.; Coleman, P.; Amato, N. M.

    2010-01-01

    reachable distance space (RD-space), in which all configurations lie in the set of constraint-satisfying subspaces. This enables us to directly sample the constrained subspaces with complexity linear in the number of the robot's degrees of freedom

  17. The Dynamic Multiprocess Framework: Evidence from Prospective Memory with Contextual Variability

    Science.gov (United States)

    Scullin, Michael K.; McDaniel, Mark A.; Shelton, Jill Talley

    2013-01-01

    The ability to remember to execute delayed intentions is referred to as prospective memory. Previous theoretical and empirical work has focused on isolating whether a particular prospective memory task is supported either by effortful monitoring processes or by cue-driven spontaneous processes. In the present work, we advance the Dynamic Multiprocess Framework, which contends that both monitoring and spontaneous retrieval may be utilized dynamically to support prospective remembering. To capture the dynamic interplay between monitoring and spontaneous retrieval we had participants perform many ongoing tasks and told them that their prospective memory cue may occur in any context. Following either a 20-min or a 12-hr retention interval, the prospective memory cues were presented infrequently across three separate ongoing tasks. The monitoring patterns (measured as ongoing task cost relative to a between-subjects control condition) were consistent and robust across the three contexts. There was no evidence for monitoring prior to the initial prospective memory cue; however, individuals who successfully spontaneously retrieved the prospective memory intention, thereby realizing that prospective memory cues could be expected within that context, subsequently monitored. These data support the Dynamic Multiprocess Framework, which contends that individuals will engage monitoring when prospective memory cues are expected, disengage monitoring when cues are not expected, and that when monitoring is disengaged, a probabilistic spontaneous retrieval mechanism can support prospective remembering. PMID:23916951

  18. Measurement of special access to home visit nursing services among Japanese disabled elderly people: using GIS and claim data.

    Science.gov (United States)

    Naruse, Takashi; Matsumoto, Hiroshige; Fujisaki-Sakai, Mahiro; Nagata, Satoko

    2017-05-30

    Home care service demands are increasing in Japan; this necessitates improved service allocation. This study examined the relationship between home visit nursing (HVN) service use and the proportion of elderly people living within 10 min' travel of HVN agencies. The population of elderly people living within reach of HVN agencies for each of 17 municipalities in one low-density prefecture was calculated using public data and geographic information systems. Multilevel logistic analysis for 2641 elderly people was conducted using medical and long-term care insurance claims data from October 2010 to examine the association between the proportion of elderly people reachable by HVNs and service usage in 13 municipalities. Municipality variables included HVN agency allocation appropriateness. Individual variables included HVN usage and demographic variables. The reachable proportion of the elderly population ranged from 0.0 to 90.2% in the examined municipalities. The reachable proportion of the elderly population was significantly positively correlated with HVN use (odds ratio: 1.938; confidence interval: 1.265-2.967). Residents living in municipalities with a lower reachable proportion of the elderly population are less likely to use HVN services. Public health interventions should increase the reachable proportion of the elderly population in order to improve HVN service use.

  19. When Do Words Hurt? A Multiprocess View of the Effects of Verbalization on Visual Memory

    Science.gov (United States)

    Brown, Charity; Brandimonte, Maria A.; Wickham, Lee H. V.; Bosco, Andrea; Schooler, Jonathan W.

    2014-01-01

    Verbal overshadowing reflects the impairment in memory performance following verbalization of nonverbal stimuli. However, it is not clear whether the same mechanisms are responsible for verbal overshadowing effects observed with different stimuli and task demands. In the present article, we propose a multiprocess view that reconciles the main…

  20. Large scale analysis of signal reachability.

    Science.gov (United States)

    Todor, Andrei; Gabr, Haitham; Dobra, Alin; Kahveci, Tamer

    2014-06-15

    Major disorders, such as leukemia, have been shown to alter the transcription of genes. Understanding how gene regulation is affected by such aberrations is of utmost importance. One promising strategy toward this objective is to compute whether signals can reach to the transcription factors through the transcription regulatory network (TRN). Due to the uncertainty of the regulatory interactions, this is a #P-complete problem and thus solving it for very large TRNs remains to be a challenge. We develop a novel and scalable method to compute the probability that a signal originating at any given set of source genes can arrive at any given set of target genes (i.e., transcription factors) when the topology of the underlying signaling network is uncertain. Our method tackles this problem for large networks while providing a provably accurate result. Our method follows a divide-and-conquer strategy. We break down the given network into a sequence of non-overlapping subnetworks such that reachability can be computed autonomously and sequentially on each subnetwork. We represent each interaction using a small polynomial. The product of these polynomials express different scenarios when a signal can or cannot reach to target genes from the source genes. We introduce polynomial collapsing operators for each subnetwork. These operators reduce the size of the resulting polynomial and thus the computational complexity dramatically. We show that our method scales to entire human regulatory networks in only seconds, while the existing methods fail beyond a few tens of genes and interactions. We demonstrate that our method can successfully characterize key reachability characteristics of the entire transcriptions regulatory networks of patients affected by eight different subtypes of leukemia, as well as those from healthy control samples. All the datasets and code used in this article are available at bioinformatics.cise.ufl.edu/PReach/scalable.htm. © The Author 2014

  1. Approximating the Value of a Concurrent Reachability Game in the Polynomial Time Hierarchy

    DEFF Research Database (Denmark)

    Frederiksen, Søren Kristoffer Stiil; Miltersen, Peter Bro

    2013-01-01

    We show that the value of a finite-state concurrent reachability game can be approximated to arbitrary precision in TFNP[NP], that is, in the polynomial time hierarchy. Previously, no better bound than PSPACE was known for this problem. The proof is based on formulating a variant of the state red...... reduction algorithm for Markov chains using arbitrary precision floating point arithmetic and giving a rigorous error analysis of the algorithm.......We show that the value of a finite-state concurrent reachability game can be approximated to arbitrary precision in TFNP[NP], that is, in the polynomial time hierarchy. Previously, no better bound than PSPACE was known for this problem. The proof is based on formulating a variant of the state...

  2. Counter-Based Broadcast Scheme Considering Reachability, Network Density, and Energy Efficiency for Wireless Sensor Networks.

    Science.gov (United States)

    Jung, Ji-Young; Seo, Dong-Yoon; Lee, Jung-Ryun

    2018-01-04

    A wireless sensor network (WSN) is emerging as an innovative method for gathering information that will significantly improve the reliability and efficiency of infrastructure systems. Broadcast is a common method to disseminate information in WSNs. A variety of counter-based broadcast schemes have been proposed to mitigate the broadcast-storm problems, using the count threshold value and a random access delay. However, because of the limited propagation of the broadcast-message, there exists a trade-off in a sense that redundant retransmissions of the broadcast-message become low and energy efficiency of a node is enhanced, but reachability become low. Therefore, it is necessary to study an efficient counter-based broadcast scheme that can dynamically adjust the random access delay and count threshold value to ensure high reachability, low redundant of broadcast-messages, and low energy consumption of nodes. Thus, in this paper, we first measure the additional coverage provided by a node that receives the same broadcast-message from two neighbor nodes, in order to achieve high reachability with low redundant retransmissions of broadcast-messages. Second, we propose a new counter-based broadcast scheme considering the size of the additional coverage area, distance between the node and the broadcasting node, remaining battery of the node, and variations of the node density. Finally, we evaluate performance of the proposed scheme compared with the existing counter-based broadcast schemes. Simulation results show that the proposed scheme outperforms the existing schemes in terms of saved rebroadcasts, reachability, and total energy consumption.

  3. Running ATLAS workloads within massively parallel distributed applications using Athena Multi-Process framework (AthenaMP)

    CERN Document Server

    Calafiura, Paolo; The ATLAS collaboration; Seuster, Rolf; Tsulaia, Vakhtang; van Gemmeren, Peter

    2015-01-01

    AthenaMP is a multi-process version of the ATLAS reconstruction and data analysis framework Athena. By leveraging Linux fork and copy-on-write, it allows the sharing of memory pages between event processors running on the same compute node with little to no change in the application code. Originally targeted to optimize the memory footprint of reconstruction jobs, AthenaMP has demonstrated that it can reduce the memory usage of certain confugurations of ATLAS production jobs by a factor of 2. AthenaMP has also evolved to become the parallel event-processing core of the recently developed ATLAS infrastructure for fine-grained event processing (Event Service) which allows to run AthenaMP inside massively parallel distributed applications on hundreds of compute nodes simultaneously. We present the architecture of AthenaMP, various strategies implemented by AthenaMP for scheduling workload to worker processes (for example: Shared Event Queue and Shared Distributor of Event Tokens) and the usage of AthenaMP in the...

  4. Running ATLAS workloads within massively parallel distributed applications using Athena Multi-Process framework (AthenaMP)

    CERN Document Server

    Calafiura, Paolo; Seuster, Rolf; Tsulaia, Vakhtang; van Gemmeren, Peter

    2015-01-01

    AthenaMP is a multi-process version of the ATLAS reconstruction, simulation and data analysis framework Athena. By leveraging Linux fork and copy-on-write, it allows for sharing of memory pages between event processors running on the same compute node with little to no change in the application code. Originally targeted to optimize the memory footprint of reconstruction jobs, AthenaMP has demonstrated that it can reduce the memory usage of certain configurations of ATLAS production jobs by a factor of 2. AthenaMP has also evolved to become the parallel event-processing core of the recently developed ATLAS infrastructure for fine-grained event processing (Event Service) which allows to run AthenaMP inside massively parallel distributed applications on hundreds of compute nodes simultaneously. We present the architecture of AthenaMP, various strategies implemented by AthenaMP for scheduling workload to worker processes (for example: Shared Event Queue and Shared Distributor of Event Tokens) and the usage of Ath...

  5. Decomposing Huge Networks into Skeleton Graphs by Reachable Relations

    Science.gov (United States)

    2017-06-07

    efficiently process approximate queries, i.e., reachable nodes , on the original dataset, i.e., the given network. Finally, by focusing on spatial networks...centralized control (e.g., the Arab Spring). These problems have mostly been studied from the view point of identifying influential nodes under some...where we set k = 26 for calculation of the bottom-k sketches of all the nodes . Figure 1(a) compares the actual processing times of these methods

  6. The Reach-and-Evolve Algorithm for Reachability Analysis of Nonlinear Dynamical Systems

    NARCIS (Netherlands)

    P.J. Collins (Pieter); A. Goldsztejn

    2008-01-01

    htmlabstractThis paper introduces a new algorithm dedicated to the rigorous reachability analysis of nonlinear dynamical systems. The algorithm is initially presented in the context of discrete time dynamical systems, and then extended to continuous time dynamical systems driven by ODEs. In

  7. A reachability test for systems over polynomial rings using Gröbner bases

    NARCIS (Netherlands)

    Habets, L.C.G.J.M.

    1992-01-01

    Conditions for the reachability of a system over a polynomial ring are well known in the literature. However, the verification of these conditions remained a difficult problem in general. Application of the Gröbner Basis method from constructive commutative algebra makes it possible to carry out

  8. Reachable set estimation for Takagi-Sugeno fuzzy systems against unknown output delays with application to tracking control of AUVs.

    Science.gov (United States)

    Zhong, Zhixiong; Zhu, Yanzheng; Ahn, Choon Ki

    2018-03-20

    In this paper, we address the problem of reachable set estimation for continuous-time Takagi-Sugeno (T-S) fuzzy systems subject to unknown output delays. Based on the reachable set concept, a new controller design method is also discussed for such systems. An effective method is developed to attenuate the negative impact from the unknown output delays, which likely degrade the performance/stability of systems. First, an augmented fuzzy observer is proposed to capacitate a synchronous estimation for the system state and the disturbance term owing to the unknown output delays, which ensures that the reachable set of the estimation error is limited via the intersection operation of ellipsoids. Then, a compensation technique is employed to eliminate the influence on the system performance stemmed from the unknown output delays. Finally, the effectiveness and correctness of the obtained theories are verified by the tracking control of autonomous underwater vehicles. Copyright © 2018 ISA. Published by Elsevier Ltd. All rights reserved.

  9. Planning with Reachable Distances

    KAUST Repository

    Tang, Xinyu

    2009-01-01

    Motion planning for spatially constrained robots is difficult due to additional constraints placed on the robot, such as closure constraints for closed chains or requirements on end effector placement for articulated linkages. It is usually computationally too expensive to apply sampling-based planners to these problems since it is difficult to generate valid configurations. We overcome this challenge by redefining the robot\\'s degrees of freedom and constraints into a new set of parameters, called reachable distance space (RD-space), in which all configurations lie in the set of constraint-satisfying subspaces. This enables us to directly sample the constrained subspaces with complexity linear in the robot\\'s number of degrees of freedom. In addition to supporting efficient sampling, we show that the RD-space formulation naturally supports planning, and in particular, we design a local planner suitable for use by sampling-based planners. We demonstrate the effectiveness and efficiency of our approach for several systems including closed chain planning with multiple loops, restricted end effector sampling, and on-line planning for drawing/sculpting. We can sample single-loop closed chain systems with 1000 links in time comparable to open chain sampling, and we can generate samples for 1000-link multi-loop systems of varying topology in less than a second. © 2009 Springer-Verlag.

  10. The Role of Haptic Exploration of Ground Surface Information in Perception of Overhead Reachability

    NARCIS (Netherlands)

    Pepping, Gert-Jan; Li, Francois-Xavier

    2008-01-01

    The authors performed an experiment in which participants (N = 24) made judgments about maximum jump and reachability on ground surfaces with different elastic properties: sand and a trampoline. Participants performed judgments in two conditions: (a) while standing and after having recently jumped

  11. Testing reachability and stabilizability of systems over polynomial rings using Gröbner bases

    NARCIS (Netherlands)

    Habets, L.C.G.J.M.

    1993-01-01

    Conditions for the reachability and stabilizability of systems over polynomial rings are well-known in the literature. For a system $ \\Sigma = (A,B)$ they can be expressed as right-invertibility cconditions on the matrix $(zI - A \\mid B)$. Therefore there is quite a strong algebraic relationship

  12. A transmission power optimization with a minimum node degree for energy-efficient wireless sensor networks with full-reachability.

    Science.gov (United States)

    Chen, Yi-Ting; Horng, Mong-Fong; Lo, Chih-Cheng; Chu, Shu-Chuan; Pan, Jeng-Shyang; Liao, Bin-Yih

    2013-03-20

    Transmission power optimization is the most significant factor in prolonging the lifetime and maintaining the connection quality of wireless sensor networks. Un-optimized transmission power of nodes either interferes with or fails to link neighboring nodes. The optimization of transmission power depends on the expected node degree and node distribution. In this study, an optimization approach to an energy-efficient and full reachability wireless sensor network is proposed. In the proposed approach, an adjustment model of the transmission range with a minimum node degree is proposed that focuses on topology control and optimization of the transmission range according to node degree and node density. The model adjusts the tradeoff between energy efficiency and full reachability to obtain an ideal transmission range. In addition, connectivity and reachability are used as performance indices to evaluate the connection quality of a network. The two indices are compared to demonstrate the practicability of framework through simulation results. Furthermore, the relationship between the indices under the conditions of various node degrees is analyzed to generalize the characteristics of node densities. The research results on the reliability and feasibility of the proposed approach will benefit the future real deployments.

  13. A Transmission Power Optimization with a Minimum Node Degree for Energy-Efficient Wireless Sensor Networks with Full-Reachability

    Science.gov (United States)

    Chen, Yi-Ting; Horng, Mong-Fong; Lo, Chih-Cheng; Chu, Shu-Chuan; Pan, Jeng-Shyang; Liao, Bin-Yih

    2013-01-01

    Transmission power optimization is the most significant factor in prolonging the lifetime and maintaining the connection quality of wireless sensor networks. Un-optimized transmission power of nodes either interferes with or fails to link neighboring nodes. The optimization of transmission power depends on the expected node degree and node distribution. In this study, an optimization approach to an energy-efficient and full reachability wireless sensor network is proposed. In the proposed approach, an adjustment model of the transmission range with a minimum node degree is proposed that focuses on topology control and optimization of the transmission range according to node degree and node density. The model adjusts the tradeoff between energy efficiency and full reachability to obtain an ideal transmission range. In addition, connectivity and reachability are used as performance indices to evaluate the connection quality of a network. The two indices are compared to demonstrate the practicability of framework through simulation results. Furthermore, the relationship between the indices under the conditions of various node degrees is analyzed to generalize the characteristics of node densities. The research results on the reliability and feasibility of the proposed approach will benefit the future real deployments. PMID:23519351

  14. CHIMERA II - A real-time multiprocessing environment for sensor-based robot control

    Science.gov (United States)

    Stewart, David B.; Schmitz, Donald E.; Khosla, Pradeep K.

    1989-01-01

    A multiprocessing environment for a wide variety of sensor-based robot system, providing the flexibility, performance, and UNIX-compatible interface needed for fast development of real-time code is addressed. The requirements imposed on the design of a programming environment for sensor-based robotic control is outlined. The details of the current hardware configuration are presented, along with the details of the CHIMERA II software. Emphasis is placed on the kernel, low-level interboard communication, user interface, extended file system, user-definable and dynamically selectable real-time schedulers, remote process synchronization, and generalized interprocess communication. A possible implementation of a hierarchical control model, the NASA/NBS standard reference model for telerobot control system is demonstrated.

  15. A multi-process model of self-regulation: influences of mindfulness, integrative self-knowledge and self-control in Iran.

    Science.gov (United States)

    Ghorbani, Nima; Watson, P J; Farhadi, Mehran; Chen, Zhuo

    2014-04-01

    Self-regulation presumably rests upon multiple processes that include an awareness of ongoing self-experience, enduring self-knowledge and self-control. The present investigation tested this multi-process model using the Five-Facet Mindfulness Questionnaire (FFMQ) and the Integrative Self-Knowledge and Brief Self-Control Scales. Using a sample of 1162 Iranian university students, we confirmed the five-factor structure of the FFMQ in Iran and documented its factorial invariance across males and females. Self-regulatory variables correlated negatively with Perceived Stress, Depression, and Anxiety and positively with Self-Esteem and Satisfaction with Life. Partial mediation effects confirmed that self-regulatory measures ameliorated the disturbing effects of Perceived Stress. Integrative Self-Knowledge and Self-Control interacted to partially mediate the association of Perceived Stress with lower levels of Satisfaction with Life. Integrative Self-Knowledge, alone or in interaction with Self-Control, was the only self-regulation variable to display the expected mediation of Perceived Stress associations with all other measures. Self-Control failed to be implicated in self-regulation only in the mediation of Anxiety. These data confirmed the need to further examine this multi-process model of self-regulation. © 2014 International Union of Psychological Science.

  16. Mapping of control functions of critical systems by reachability analysis in a network of communicating automata

    International Nuclear Information System (INIS)

    Lemattre, Thibault

    2013-01-01

    The design of operational control architectures is a very important step of the design of energy production systems. This step consists in mapping the functional architecture of the system onto its hardware architecture while respecting capacity and safety constraints, i.e. in allocating control functions to a set of controllers while respecting these constraints. The work presented in this thesis presents: i) a formalization of the data and constraints of the function allocation problem; ii) a mapping method, by reachability analysis, based on a request/response mechanism in a network of communicating automata with integer variables; iii) a comparison between this method and a resolution method by integer linear programming. The results of this work have been validated on examples of actual size and open the way to the coupling between reachability analysis and integer linear programming for the resolution of satisfaction problems for non-linear constraint systems. (author)

  17. Shared I/O components for the ATLAS multi-processing framework

    CERN Document Server

    van Gemmeren, Peter; The ATLAS collaboration

    2017-01-01

    ATLAS uses its multi-processing framework AthenaMP for an increasing number of workflows, including simulation, reconstruction and event data filtering (derivation). After serial initialization, AthenaMP forks worker processes that then process events in parallel, with each worker reading data individually and producing its own output. This mode, however, has inefficiencies: 1) The worker no longer reads events sequentially, which negatively affects data caching strategies at the storage backend. 2) For its non-RAW data ATLAS uses ROOT and compresses across 10-100 events. Workers will only need a subsample of these events, but have to read and decompress the complete buffers. 3) Output files from the individual workers need to be merged in a separate, serial process. 4) Propagating metadata describing the complete event sample through several workers is nontrivial. To address these shortcomings, ATLAS has developed shared reader and writer components presented in this paper. With the shared reader, a single p...

  18. Reachability in Biochemical Dynamical Systems by Quantitative Discrete Approximation (extended abstract

    Directory of Open Access Journals (Sweden)

    L. Brim

    2011-09-01

    Full Text Available In this paper, a novel computational technique for finite discrete approximation of continuous dynamical systems suitable for a significant class of biochemical dynamical systems is introduced. The method is parameterized in order to affect the imposed level of approximation provided that with increasing parameter value the approximation converges to the original continuous system. By employing this approximation technique, we present algorithms solving the reachability problem for biochemical dynamical systems. The presented method and algorithms are evaluated on several exemplary biological models and on a real case study.

  19. The effect of response-delay on estimating reachability.

    Science.gov (United States)

    Gabbard, Carl; Ammar, Diala

    2008-11-01

    The experiment was conducted to compare visual imagery (VI) and motor imagery (MI) reaching tasks in a response-delay paradigm designed to explore the hypothesized dissociation between vision for perception and vision for action. Although the visual systems work cooperatively in motor control, theory suggests that they operate under different temporal constraints. From this perspective, we expected that delay would affect MI but not VI because MI operates in real time and VI is postulated to be memory-driven. Following measurement of actual reach, right-handers were presented seven (imagery) targets at midline in eight conditions: MI and VI with 0-, 1-, 2-, and 4-s delays. Results indicted that delay affected the ability to estimate reachability with MI but not with VI. These results are supportive of a general distinction between vision for perception and vision for action.

  20. Re-verification of a Lip Synchronization Protocol using Robust Reachability

    Directory of Open Access Journals (Sweden)

    Piotr Kordy

    2010-03-01

    Full Text Available The timed automata formalism is an important model for specifying and analysing real-time systems. Robustness is the correctness of the model in the presence of small drifts on clocks or imprecision in testing guards. A symbolic algorithm for the analysis of the robustness of timed automata has been implemented. In this paper, we re-analyse an industrial case lip synchronization protocol using the new robust reachability algorithm. This lip synchronization protocol is an interesting case because timing aspects are crucial for the correctness of the protocol. Several versions of the model are considered: with an ideal video stream, with anchored jitter, and with non-anchored jitter.

  1. The influence of anxiety and personality factors on comfort and reachability space: a correlational study.

    Science.gov (United States)

    Iachini, Tina; Ruggiero, Gennaro; Ruotolo, Francesco; Schiano di Cola, Armando; Senese, Vincenzo Paolo

    2015-09-01

    Although the effects of several personality factors on interpersonal space (i.e. social space within personal comfort area) are well documented, it is not clear whether they also extend to peripersonal space (i.e. reaching space). Indeed, no study has directly compared these spaces in relation to personality and anxiety factors even though such a comparison would help to clarify to what extent they share similar mechanisms and characteristics. The aim of the present paper was to investigate whether personality dimensions and anxiety levels are associated with reaching and comfort distances. Seventy university students (35 females) were administered the Big Five Questionnaire and the State-Trait Anxiety Inventory; afterwards, they had to provide reachability- and comfort-distance judgments towards human confederates while standing still (passive) or walking towards them (active). The correlation analyses showed that both spaces were positively related to anxiety and negatively correlated with the Dynamism in the active condition. Moreover, in the passive condition higher Emotional Stability was related to shorter comfort distance, while higher cognitive Openness was associated with shorter reachability distance. The implications of these results are discussed.

  2. A First Step Towards High-Level Cost Models for the Implementation of SDRs on Multiprocessing Reconfigurable Systems

    DEFF Research Database (Denmark)

    Le Moullec, Yannick

    2011-01-01

    -In-Progress paper we introduce our set of high-level estimation models for Area-Time costs of applications mapped onto FPGA-based multiprocessing reconfigurable architectures. In particular, we suggest models for static and dynamic implementations, taking various internal and external architectural elements...... into account. We believe that such models could be used for rapidly comparing implementation alternatives at a high level of abstraction and for guiding the designer during the (pre)analysis phase of the design flow for the implementation of e.g. SDR platforms....

  3. Reachability by paths of bounded curvature in a convex polygon

    KAUST Repository

    Ahn, Heekap; Cheong, Otfried; Matoušek, Jiřǐ; Vigneron, Antoine E.

    2012-01-01

    Let B be a point robot moving in the plane, whose path is constrained to forward motions with curvature at most 1, and let P be a convex polygon with n vertices. Given a starting configuration (a location and a direction of travel) for B inside P, we characterize the region of all points of P that can be reached by B, and show that it has complexity O(n). We give an O(n2) time algorithm to compute this region. We show that a point is reachable only if it can be reached by a path of type CCSCS, where C denotes a unit circle arc and S denotes a line segment. © 2011 Elsevier B.V.

  4. A Comparison of Sequential and GPU Implementations of Iterative Methods to Compute Reachability Probabilities

    Directory of Open Access Journals (Sweden)

    Elise Cormie-Bowins

    2012-10-01

    Full Text Available We consider the problem of computing reachability probabilities: given a Markov chain, an initial state of the Markov chain, and a set of goal states of the Markov chain, what is the probability of reaching any of the goal states from the initial state? This problem can be reduced to solving a linear equation Ax = b for x, where A is a matrix and b is a vector. We consider two iterative methods to solve the linear equation: the Jacobi method and the biconjugate gradient stabilized (BiCGStab method. For both methods, a sequential and a parallel version have been implemented. The parallel versions have been implemented on the compute unified device architecture (CUDA so that they can be run on a NVIDIA graphics processing unit (GPU. From our experiments we conclude that as the size of the matrix increases, the CUDA implementations outperform the sequential implementations. Furthermore, the BiCGStab method performs better than the Jacobi method for dense matrices, whereas the Jacobi method does better for sparse ones. Since the reachability probabilities problem plays a key role in probabilistic model checking, we also compared the implementations for matrices obtained from a probabilistic model checker. Our experiments support the conjecture by Bosnacki et al. that the Jacobi method is superior to Krylov subspace methods, a class to which the BiCGStab method belongs, for probabilistic model checking.

  5. Control mechanisms for stochastic biochemical systems via computation of reachable sets.

    Science.gov (United States)

    Lakatos, Eszter; Stumpf, Michael P H

    2017-08-01

    Controlling the behaviour of cells by rationally guiding molecular processes is an overarching aim of much of synthetic biology. Molecular processes, however, are notoriously noisy and frequently nonlinear. We present an approach to studying the impact of control measures on motifs of molecular interactions that addresses the problems faced in many biological systems: stochasticity, parameter uncertainty and nonlinearity. We show that our reachability analysis formalism can describe the potential behaviour of biological (naturally evolved as well as engineered) systems, and provides a set of bounds on their dynamics at the level of population statistics: for example, we can obtain the possible ranges of means and variances of mRNA and protein expression levels, even in the presence of uncertainty about model parameters.

  6. Iterable Forward Reachability Analysis of Monitor-DPNs

    Directory of Open Access Journals (Sweden)

    Benedikt Nordhoff

    2013-09-01

    Full Text Available There is a close connection between data-flow analysis and model checking as observed and studied in the nineties by Steffen and Schmidt. This indicates that automata-based analysis techniques developed in the realm of infinite-state model checking can be applied as data-flow analyzers that interpret complex control structures, which motivates the development of such analysis techniques for ever more complex models. One approach proposed by Esparza and Knoop is based on computation of predecessor or successor sets for sets of automata configurations. Our goal is to adapt and exploit this approach for analysis of multi-threaded Java programs. Specifically, we consider the model of Monitor-DPNs for concurrent programs. Monitor-DPNs precisely model unbounded recursion, dynamic thread creation, and synchronization via well-nested locks with finite abstractions of procedure- and thread-local state. Previous work on this model showed how to compute regular predecessor sets of regular configurations and tree-regular successor sets of a fixed initial configuration. By combining and extending different previously developed techniques we show how to compute tree-regular successor sets of tree-regular sets. Thereby we obtain an iterable, lock-sensitive forward reachability analysis. We implemented the analysis for Java programs and applied it to information flow control and data race detection.

  7. Liveness and Reachability Analysis of BPMN Process Models

    Directory of Open Access Journals (Sweden)

    Anass Rachdi

    2016-06-01

    Full Text Available Business processes are usually defined by business experts who require intuitive and informal graphical notations such as BPMN (Business Process Management Notation for documenting and communicating their organization activities and behavior. However, BPMN has not been provided with a formal semantics, which limits the analysis of BPMN models to using solely informal techniques such as simulation. In order to address this limitation and use formal verification, it is necessary to define a certain “mapping” between BPMN and a formal language such as Concurrent Sequential Processes (CSP and Petri Nets (PN. This paper proposes a method for the verification of BPMN models by defining formal semantics of BPMN in terms of a mapping to Time Petri Nets (TPN, which are equipped with very efficient analytical techniques. After the translation of BPMN models to TPN, verification is done to ensure that some functional properties are satisfied by the model under investigation, namely liveness and reachability properties. The main advantage of our approach over existing ones is that it takes into account the time components in modeling Business process models. An example is used throughout the paper to illustrate the proposed method.

  8. Design of Service Net based Correctness Verification Approach for Multimedia Conferencing Service Orchestration

    Directory of Open Access Journals (Sweden)

    Cheng Bo

    2012-02-01

    Full Text Available Multimedia conferencing is increasingly becoming a very important and popular application over Internet. Due to the complexity of asynchronous communications and handle large and dynamically concurrent processes for multimedia conferencing, which confront relevant challenge to achieve sufficient correctness guarantees, and supporting the effective verification methods for multimedia conferencing services orchestration is an extremely difficult and challenging problem. In this paper, we firstly present the Business Process Execution Language (BPEL based conferencing service orchestration, and mainly focus on the service net based correction verification approach for multimedia conferencing services orchestration, which can automatically translated the BPEL based service orchestration into a corresponding Petri net model with the Petri Net Markup Language (PNML, and also present the BPEL service net reduction rules and multimedia conferencing service orchestration correction verification algorithms. We perform the correctness analysis and verification using the service net properties as safeness, reachability and deadlocks, and also provide an automated support tool for the formal analysis and soundness verification for the multimedia conferencing services orchestration scenarios. Finally, we give the comparison and evaluations.

  9. A verification strategy for web services composition using enhanced stacked automata model.

    Science.gov (United States)

    Nagamouttou, Danapaquiame; Egambaram, Ilavarasan; Krishnan, Muthumanickam; Narasingam, Poonkuzhali

    2015-01-01

    Currently, Service-Oriented Architecture (SOA) is becoming the most popular software architecture of contemporary enterprise applications, and one crucial technique of its implementation is web services. Individual service offered by some service providers may symbolize limited business functionality; however, by composing individual services from different service providers, a composite service describing the intact business process of an enterprise can be made. Many new standards have been defined to decipher web service composition problem namely Business Process Execution Language (BPEL). BPEL provides an initial work for forming an Extended Markup Language (XML) specification language for defining and implementing business practice workflows for web services. The problems with most realistic approaches to service composition are the verification of composed web services. It has to depend on formal verification method to ensure the correctness of composed services. A few research works has been carried out in the literature survey for verification of web services for deterministic system. Moreover the existing models did not address the verification properties like dead transition, deadlock, reachability and safetyness. In this paper, a new model to verify the composed web services using Enhanced Stacked Automata Model (ESAM) has been proposed. The correctness properties of the non-deterministic system have been evaluated based on the properties like dead transition, deadlock, safetyness, liveness and reachability. Initially web services are composed using Business Process Execution Language for Web Service (BPEL4WS) and it is converted into ESAM (combination of Muller Automata (MA) and Push Down Automata (PDA)) and it is transformed into Promela language, an input language for Simple ProMeLa Interpreter (SPIN) tool. The model is verified using SPIN tool and the results revealed better recital in terms of finding dead transition and deadlock in contrast to the

  10. Service availability during the annual closure 2014/2015

    CERN Multimedia

    GS & IT Departments

    2014-01-01

    Please note that the Service Desk will be closed, however in case of urgent requests, you can call/contact (+41 22 76) 77777. Calls will be redirected to the relevant support groups.   General Services As always, like the security service, the emergency and fire service remain operational 24/7 and reachable via 74444. However, the services provided by the GS department requiring human presence (such as CERN hotel, the car sharing service, the shuttle service, etc.) will not be operational during the annual closure. Services that do not depend on a continuous human presence will remain available offering a reduced level of support during this period. In general, the response time to normal problems will be a half day (no guarantee), but in case of serious failure, the reaction time will depend on the arrangements that have been made with the supported services. Any incidents will be documented on the CERN Service Status Board. For more information, please consult the CERN Services Po...

  11. Service availability during CERN annual closure 2015/2016

    CERN Multimedia

    2015-01-01

    Please note that the Service Desk will be closed, however in case of urgent requests, you can call/contact (+41 22 76) 77777. Calls will be redirected to the relevant support groups.   General Services As always, like the security service, the emergency and fire service remain operational 24/7 and reachable via 74444. However, the services provided by the GS department requiring human presence (such as CERN hotel, the car sharing service, the shuttle service, etc.) will not be operational during the annual closure. Services that do not depend on a continuous human presence will remain available offering a reduced level of support during this period. In general, the response time to normal problems will be a half day (no guarantee), but in case of serious failure, the reaction time will depend on the arrangements that have been made with the supported services. Any incidents will be documented on the CERN Service Status Board. For more information, please ...

  12. Computing and Visualizing Reachable Volumes for Maneuvering Satellites

    Science.gov (United States)

    Jiang, M.; de Vries, W.; Pertica, A.; Olivier, S.

    2011-09-01

    Detecting and predicting maneuvering satellites is an important problem for Space Situational Awareness. The spatial envelope of all possible locations within reach of such a maneuvering satellite is known as the Reachable Volume (RV). As soon as custody of a satellite is lost, calculating the RV and its subsequent time evolution is a critical component in the rapid recovery of the satellite. In this paper, we present a Monte Carlo approach to computing the RV for a given object. Essentially, our approach samples all possible trajectories by randomizing thrust-vectors, thrust magnitudes and time of burn. At any given instance, the distribution of the "point-cloud" of the virtual particles defines the RV. For short orbital time-scales, the temporal evolution of the point-cloud can result in complex, multi-reentrant manifolds. Visualization plays an important role in gaining insight and understanding into this complex and evolving manifold. In the second part of this paper, we focus on how to effectively visualize the large number of virtual trajectories and the computed RV. We present a real-time out-of-core rendering technique for visualizing the large number of virtual trajectories. We also examine different techniques for visualizing the computed volume of probability density distribution, including volume slicing, convex hull and isosurfacing. We compare and contrast these techniques in terms of computational cost and visualization effectiveness, and describe the main implementation issues encountered during our development process. Finally, we will present some of the results from our end-to-end system for computing and visualizing RVs using examples of maneuvering satellites.

  13. Computing and Visualizing Reachable Volumes for Maneuvering Satellites

    International Nuclear Information System (INIS)

    Jiang, M.; de Vries, W.H.; Pertica, A.J.; Olivier, S.S.

    2011-01-01

    Detecting and predicting maneuvering satellites is an important problem for Space Situational Awareness. The spatial envelope of all possible locations within reach of such a maneuvering satellite is known as the Reachable Volume (RV). As soon as custody of a satellite is lost, calculating the RV and its subsequent time evolution is a critical component in the rapid recovery of the satellite. In this paper, we present a Monte Carlo approach to computing the RV for a given object. Essentially, our approach samples all possible trajectories by randomizing thrust-vectors, thrust magnitudes and time of burn. At any given instance, the distribution of the 'point-cloud' of the virtual particles defines the RV. For short orbital time-scales, the temporal evolution of the point-cloud can result in complex, multi-reentrant manifolds. Visualization plays an important role in gaining insight and understanding into this complex and evolving manifold. In the second part of this paper, we focus on how to effectively visualize the large number of virtual trajectories and the computed RV. We present a real-time out-of-core rendering technique for visualizing the large number of virtual trajectories. We also examine different techniques for visualizing the computed volume of probability density distribution, including volume slicing, convex hull and isosurfacing. We compare and contrast these techniques in terms of computational cost and visualization effectiveness, and describe the main implementation issues encountered during our development process. Finally, we will present some of the results from our end-to-end system for computing and visualizing RVs using examples of maneuvering satellites.

  14. Reachability Does Not Explain the Middle Preference: A Comment on Bar-Hillel (2015

    Directory of Open Access Journals (Sweden)

    Paul Rodway

    2016-03-01

    Full Text Available Choosing an object from an array of similar objects is a task that people complete frequently throughout their lives (e.g., choosing a can of soup from many cans of soup. Research has also demonstrated that items in the middle of an array or scene are looked at more often and are more likely to be chosen. This middle preference is surprisingly robust and widespread, having been found in a wide range of perceptual-motor tasks. In a recent review of the literature, Bar-Hillel (2015 proposes, among other things, that the middle preference is largely explained by the middle item being easier to reach, either physically or mentally. We specifically evaluate Bar-Hillel’s reachability explanation for choice in non-interactive situations in light of evidence showing an effect of item valence on such choices. This leads us to conclude that the center-stage heuristic account is a more plausible explanation of the middle preference.

  15. Availability of IT services during the 2009 CERN annual closure

    CERN Multimedia

    IT Department

    2009-01-01

    Most of the services provided by the IT Department - including WLCG (EGEE) production services - will remain available during the CERN annual closure. No interruptions are scheduled but in the event of a failure, the restoration of services cannot be guaranteed. Problems will be dealt with on a best effort basis only. However, for the following services: Network, Databases, Mail, Web, Windows & Terminal Services, Authentication Services, Indico, CDS, Grid (SAM, FTS, VOMS, GridView): experts should be reachable to start investigations within about half a day except on Christmas Eve and Christmas Day (24 and 25 December) and New Year’s Eve and New Year’s Day (31 December and 1 January). Incidents will be documented at http://cern.ch/ssb. The backup service will remain operational, but backups cannot be guaranteed and file restores may not be possible. Castor: damaged tapes will not be processed. Please note that the Helpdesk will be closed but an operator service will ...

  16. IT Services Availability during the 2007 Annual CERN Closure

    CERN Multimedia

    IT Department

    2007-01-01

    Most of the physics, technical, administrative and communications services provided by the IT Department - including LCG (EGEE) production services - will remain available during the CERN annual closure (although EDH requests will stay queued). No interruptions are scheduled but in the event of failure, the restoration of services cannot be guaranteed. Problems will be dealt with on a best effort basis only. However, for the following services: Network, Databases, Mail, Web, Windows & Terminal Services, Indico, CDS, Grid (SAM, FTS, VOMS, GridView, Resource Brokers): experts should be reachable to start investigations within about half a day except around Christmas Eve and Christmas Day (24 and 25 December) and New Year’s Eve and New Year’s Day (31 December and 1 January). Incidents will be documented at http://cern.ch/ssb; The backup service: will remain operational, but backups cannot be guaranteed and file restores will not be possible; Castor: damaged tapes wi...

  17. IT Services Availability during the CERN Annual Closure 2010

    CERN Multimedia

    2010-01-01

    Most of the services provided by the IT Department - including WLCG production services - will remain available during the CERN annual closure. No interruptions are scheduled but in case of failure, the restoration of services cannot be guaranteed. Problems will be dealt with on a best effort basis only. However, please note:   •\tExperts should be reachable to start investigations on the following services within about half a day except around Christmas Eve and Christmas Day (24 and 25 December) and New Year's Eve and New Year's Day (31 December and 1 January) -- Network, Databases, Linux, Mail, Printing, Telecom, Web, Windows & Windows Terminal Services, Account Management, Castor, Indico, Inspire, Invenio, Grid (SAM, Gridview, Nagios, messaging), and the room booking system, Incidents will be documented at http://cern.ch/ssb. •\tThe backup service will remain operational, but backups cannot be guaranteed and file restores may not be possible. •\tFor the Castor serv...

  18. Modelling temporal networks of human face-to-face contacts with public activity and individual reachability

    Science.gov (United States)

    Zhang, Yi-Qing; Cui, Jing; Zhang, Shu-Min; Zhang, Qi; Li, Xiang

    2016-02-01

    Modelling temporal networks of human face-to-face contacts is vital both for understanding the spread of airborne pathogens and word-of-mouth spreading of information. Although many efforts have been devoted to model these temporal networks, there are still two important social features, public activity and individual reachability, have been ignored in these models. Here we present a simple model that captures these two features and other typical properties of empirical face-to-face contact networks. The model describes agents which are characterized by an attractiveness to slow down the motion of nearby people, have event-triggered active probability and perform an activity-dependent biased random walk in a square box with periodic boundary. The model quantitatively reproduces two empirical temporal networks of human face-to-face contacts which are testified by their network properties and the epidemic spread dynamics on them.

  19. Reachable Distance Space: Efficient Sampling-Based Planning for Spatially Constrained Systems

    KAUST Repository

    Xinyu Tang,

    2010-01-25

    Motion planning for spatially constrained robots is difficult due to additional constraints placed on the robot, such as closure constraints for closed chains or requirements on end-effector placement for articulated linkages. It is usually computationally too expensive to apply sampling-based planners to these problems since it is difficult to generate valid configurations. We overcome this challenge by redefining the robot\\'s degrees of freedom and constraints into a new set of parameters, called reachable distance space (RD-space), in which all configurations lie in the set of constraint-satisfying subspaces. This enables us to directly sample the constrained subspaces with complexity linear in the number of the robot\\'s degrees of freedom. In addition to supporting efficient sampling of configurations, we show that the RD-space formulation naturally supports planning and, in particular, we design a local planner suitable for use by sampling-based planners. We demonstrate the effectiveness and efficiency of our approach for several systems including closed chain planning with multiple loops, restricted end-effector sampling, and on-line planning for drawing/sculpting. We can sample single-loop closed chain systems with 1,000 links in time comparable to open chain sampling, and we can generate samples for 1,000-link multi-loop systems of varying topologies in less than a second. © 2010 The Author(s).

  20. Multicore in production: advantages and limits of the multiprocess approach in the ATLAS experiment

    International Nuclear Information System (INIS)

    Binet, S; Calafiura, P; Lavrijsen, W; Leggett, C; Tatarkhanov, M; Tsulaia, V; Jha, M K; Lesny, D; Severini, H; Smith, D; Snyder, S; VanGemmeren, P; Washbrook, A

    2012-01-01

    The shared memory architecture of multicore CPUs provides HEP developers with the opportunity to reduce the memory footprint of their applications by sharing memory pages between the cores in a processor. ATLAS pioneered the multi-process approach to parallelize HEP applications. Using Linux fork() and the Copy On Write mechanism we implemented a simple event task farm, which allowed us to achieve sharing of almost 80% of memory pages among event worker processes for certain types of reconstruction jobs with negligible CPU overhead. By leaving the task of managing shared memory pages to the operating system, we have been able to parallelize large reconstruction and simulation applications originally written to be run in a single thread of execution with little to no change to the application code. The process of validating AthenaMP for production took ten months of concentrated effort and is expected to continue for several more months. Besides validating the software itself, an important and time-consuming aspect of running multicore applications in production was to configure the ATLAS distributed production system to handle multicore jobs. This entailed defining multicore batch queues, where the unit resource is not a core, but a whole computing node; monitoring the output of many event workers; and adapting the job definition layer to handle computing resources with different event throughputs. We will present scalability and memory usage studies, based on data gathered both on dedicated hardware and at the CERN Computer Center.

  1. Jangkauan Pelayanan Kesehatan Gigi dan Mulut di Puskesmas Se Kotamadya Surabaya Tahun 1995 Sampai Dengan Tahun 1997

    Directory of Open Access Journals (Sweden)

    Djokowidodo Djokowidodo

    2015-10-01

    Full Text Available The increased number of personnel, may also increase the reachability of the dental and oral health service in the target population. This study was concerned in comparing the data about the dental and oral health service effort from 1995 to 1997 with the determined target. The study showed increased reachability of the dental and oral health service from Public Health Service in Kotamadya Surabaya. In spote of the general imfrocement, the curative and reveral system could not reach the target yet.

  2. Use of a multi-process phytoremediation system for decontamination of petroleum impacted soils : results of successful field trials

    International Nuclear Information System (INIS)

    Greenberg, B.M.; Gurska, J.; Huang, X.D.; Gerhardt, K.E.; Yu, X.M.; Nykamp, J.; MacNeill, G.; Yang, S.; Lu, X.; Glick, B.; Wang, W.; Knezevich, N.; Reid, N.

    2008-01-01

    The multi-process phytoremediation system (MPPS) was developed to degrade petroleum hydrocarbons (PHCs) in impacted soils. Phytoremediation of persistent contaminants in soils holds significant promise for rapid remediation kinetics. MPPS effectively removes polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPHs) and chlorinated hydrocarbons (CHCs) from soils. A plant growth promoting rhizobacteria interaction is the main element for success as it mitigates stress ethylene effects in plants, leading to high root biomass which, in turn, promotes growth of rhizosphere organisms. Field tests of the MPPS were initiated at a farm site in Sarnia, Ontario in the summer of 2004. The field was contaminated with petroleum hydrocarbons from refinery oil sludge. The second field trial was performed for 3 consecutive years at a petroleum contaminated biopile in Turner Valley, Alberta. The paper presented the results of the successful field tests of the MPPS. It was concluded that increased root biomass is achieved in the contaminated soils, which leads to more efficient and complete removal of TPHs in the field. Three years of field trials of the MPPS showed that remediation continues with successive seasons. 28 refs., 1 tab., 3 figs

  3. Development and successful field tests of a multi-process phytoremediation system for decontamination of persistent petroleum and organic contaminants in soil

    Energy Technology Data Exchange (ETDEWEB)

    Greenberg, B.M.; Huang, X.-D.; Gurska, Y.; Gerhardt, K.E.; Lampi, M.A.; Khalid, A.; Isherwood, D.; Chang, P.; Wang, W.; Wang, H.; Dixon, D.G.; Glick, B.R. [Waterloo Univ., ON (Canada). Dept. of Biology

    2006-07-01

    If efficient systems with rapid remediation kinetics can be realized, phytoremediation of persistent contaminants from soils holds great promise. A multi-process phytoremediation system (MPPS) with accelerated remediation kinetics that effectively removes polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPHs) and chlorinated hydrocarbons (CHCs) from soils has been developed. A plant growth promoting rhizobacteria interaction is the main element for success as it mitigates stress ethylene effects in plants, leading to high root biomass which, in turn, promotes growth of rhizosphere organisms. Based on the success of greenhouse experiments, field tests of the MPPS were initiated at an Imperial Oil land farm site in Sarnia, Ontario in the summer of 2004, followed by 127 field tests at the same site in the summer of 2005 and 2006. In addition, a total petroleum hydrocarbons (TPH) contaminated site in Alberta was used in 2005 and 2006. The study presented and discussed selected results of successful greenhouse, pilot field tests and field tests of the MPPS. It was concluded that increased root biomass is achieved in the contaminated soils, which leads to more efficient and complete removal of TPHs in the field. Three years of field trials of the MPPS showed that remediation continues with successive seasons. 27 refs., 2 tabs., 1 fig.

  4. Successful field tests of a multi-process phytoremediation system for decontamination of persistent petroleum and organic contaminants

    Energy Technology Data Exchange (ETDEWEB)

    Greenberg, B.M.; Huang, X.D.; Gurska, Y.; Gerhardt, K.E.; Wang, W.; Lampi, M.A.; Zhang, C.; Khalid, A.; Isherwood, D.; Chang, P.; Wang, H.; Dixon, D.G.; Glick, B.R. [Waterloo Univ., ON (Canada)

    2006-07-01

    A large number of aquatic and terrestrial environments are polluted with various levels of toxicants. Metals, organics and total petroleum hydrocarbons from anthropogenic sources pose a risk to both human health and the health of ecosystems. Although these persistent contaminants are difficult to remediate, several industrial sites throughout North America are being remediated as part of land reclamation and restoration programs. This paper addressed the issue of phytoremediation for removing contaminants from soils. Phytoremediation is considered to be a viable remediation strategy because the increased biomass of plants, relative to the biomass of soil microbes in the absence of plants, allows for higher throughput. Extensive root systems can infiltrate large volumes of soil, thus promoting degradation of contaminants over a wide area. This paper described a newly developed multi-process phytoremediation system with accelerated remediation kinetics to effectively remove polycyclic aromatic hydrocarbons (PAH), total petroleum hydrocarbons (TPH) and chlorinated hydrocarbons (CHC) from soils. The system combines land farming/sunlight exposure; inoculation of contaminant degrading bacteria; and, plant growth with plant growth promoting rhizobacteria which mitigates the effects of stress ethylene in plants. The primary factor for success was the interaction between the plant and the plant growth promoting rhizobacteria. Several field tests were conducted following successful greenhouse tests. Results at a TPH contaminated site in Sarnia, Ontario showed that over a 2 year period, 60 to 70 per cent remediation of 15 per cent TPH was achieved. At a site in Turner Valley, Alberta, 35 per cent remediation of 1 per cent recalcitrant TPH was achieved, while a DDT contaminated site near Simcoe, Ontario had nearly 30 per cent of CHC removed in a 3 month period. 34 refs., 2 tabs., 2 figs.

  5. Successful field tests of a multi-process phytoremediation system for decontamination of persistent petroleum and organic contaminants

    International Nuclear Information System (INIS)

    Greenberg, B.M.; Huang, X.D.; Gurska, Y.; Gerhardt, K.E.; Wang, W.; Lampi, M.A.; Zhang, C.; Khalid, A.; Isherwood, D.; Chang, P.; Wang, H.; Dixon, D.G.; Glick, B.R.

    2006-01-01

    A large number of aquatic and terrestrial environments are polluted with various levels of toxicants. Metals, organics and total petroleum hydrocarbons from anthropogenic sources pose a risk to both human health and the health of ecosystems. Although these persistent contaminants are difficult to remediate, several industrial sites throughout North America are being remediated as part of land reclamation and restoration programs. This paper addressed the issue of phytoremediation for removing contaminants from soils. Phytoremediation is considered to be a viable remediation strategy because the increased biomass of plants, relative to the biomass of soil microbes in the absence of plants, allows for higher throughput. Extensive root systems can infiltrate large volumes of soil, thus promoting degradation of contaminants over a wide area. This paper described a newly developed multi-process phytoremediation system with accelerated remediation kinetics to effectively remove polycyclic aromatic hydrocarbons (PAH), total petroleum hydrocarbons (TPH) and chlorinated hydrocarbons (CHC) from soils. The system combines land farming/sunlight exposure; inoculation of contaminant degrading bacteria; and, plant growth with plant growth promoting rhizobacteria which mitigates the effects of stress ethylene in plants. The primary factor for success was the interaction between the plant and the plant growth promoting rhizobacteria. Several field tests were conducted following successful greenhouse tests. Results at a TPH contaminated site in Sarnia, Ontario showed that over a 2 year period, 60 to 70 per cent remediation of 15 per cent TPH was achieved. At a site in Turner Valley, Alberta, 35 per cent remediation of 1 per cent recalcitrant TPH was achieved, while a DDT contaminated site near Simcoe, Ontario had nearly 30 per cent of CHC removed in a 3 month period. 34 refs., 2 tabs., 2 figs

  6. Applicability of a track-based multiprocess portable robot to some maintenance tasks in CANDU nuclear plants

    International Nuclear Information System (INIS)

    Hazel, B.; Fihey, J.-L.; Laroche, Y.

    2000-01-01

    Hydro-Quebec has developed a six-axis, track-based, multiprocess robot. This lightweight (30 kg) compact robot travels on a bent track with a radius of curvature ranging from 1 m to infinity (straight track). Standard and tandem wires GMAW, FCAW and Narrow gap TIG welding as well as plasma gouging and cutting, electrical and pneumatic rough and precision grinding, and profile measurement functionalities have been incorporated. A description of this technology an its newly developed functionalities is given in this paper. Since 1995, a number of industrial and R and D projects have been performed using this technology now called the Scompi technology. The main field of application is the in situ repair of hydraulic turbine runners. However some applications have been developed in the nuclear field. One particular development was funded by the International Thermonuclear Experimental Reactor (ITER) project. Scompi was selected by the ITER US Home Team for a demonstration of remote techniques for welding, cutting and rewelding the 30 m diameter, 17 m high, vacuum vessel. The demonstration involved all position robotic plasma cutting and NG-TIG welding of a 316L, 40 mm thick, double wall. In 1998, two Scompi robots working in tandem performed in York, Pa, the joint welding and cutting of a full scale portion of the vacuum vessel. In 1995, the applicability of the Scompi technology to the repair of the divider plates in the four steam generators at Gentilly-2 was evaluated based on a joint proposal by Ontario Hydro Technologies (now Ontario Power Technologies-OPT) and Hydro-Quebec. A MIG welding procedure was proposed for the horizontal and vertical divider plates welds. A complete simulation of the robot and primary head demonstrated the feasibility of the concept. However, based on cost and scheduling, it was decided to proceed with a manual repair. Nevertheless it is anticipated that this technology will find its niche in the maintenance of Candu reactors. (author)

  7. Applicability of a track-based multiprocess portable robot to some maintenance tasks in CANDU nuclear plants

    Energy Technology Data Exchange (ETDEWEB)

    Hazel, B.; Fihey, J.-L.; Laroche, Y. [Hydro-Quebec, Varennes, Quebec (Canada)

    2000-07-01

    Hydro-Quebec has developed a six-axis, track-based, multiprocess robot. This lightweight (30 kg) compact robot travels on a bent track with a radius of curvature ranging from 1 m to infinity (straight track). Standard and tandem wires GMAW, FCAW and Narrow gap TIG welding as well as plasma gouging and cutting, electrical and pneumatic rough and precision grinding, and profile measurement functionalities have been incorporated. A description of this technology an its newly developed functionalities is given in this paper. Since 1995, a number of industrial and R and D projects have been performed using this technology now called the Scompi technology. The main field of application is the in situ repair of hydraulic turbine runners. However some applications have been developed in the nuclear field. One particular development was funded by the International Thermonuclear Experimental Reactor (ITER) project. Scompi was selected by the ITER US Home Team for a demonstration of remote techniques for welding, cutting and rewelding the 30 m diameter, 17 m high, vacuum vessel. The demonstration involved all position robotic plasma cutting and NG-TIG welding of a 316L, 40 mm thick, double wall. In 1998, two Scompi robots working in tandem performed in York, Pa, the joint welding and cutting of a full scale portion of the vacuum vessel. In 1995, the applicability of the Scompi technology to the repair of the divider plates in the four steam generators at Gentilly-2 was evaluated based on a joint proposal by Ontario Hydro Technologies (now Ontario Power Technologies-OPT) and Hydro-Quebec. A MIG welding procedure was proposed for the horizontal and vertical divider plates welds. A complete simulation of the robot and primary head demonstrated the feasibility of the concept. However, based on cost and scheduling, it was decided to proceed with a manual repair. Nevertheless it is anticipated that this technology will find its niche in the maintenance of Candu reactors. (author)

  8. Identification of Biodegradation Pathways in a Multi-Process Phytoremediation System (MPPS) Using Natural Abundance 14C Analysis of PLFA

    Science.gov (United States)

    Cowie, B. R.; Greenberg, B. M.; Slater, G. F.

    2008-12-01

    Optimizing remediation of petroleum-contaminated soils requires thorough understanding of the mechanisms and pathways involved in a proposed remediation system. In many engineered and natural attenuation systems, multiple degradation pathways may contribute to observed contaminant mass losses. In this study, biodegradation in the soil microbial community was identified as a major pathway for petroleum hydrocarbon removal in a Multi-Process Phytoremediation System (MPPS) using natural abundance 14C analysis of Phospholipid Fatty Acids (PLFA). In contaminated soils, PLFA were depleted in Δ14C to less than -800‰, directly demonstrating microbial uptake and utilization of petroleum derived carbon (Δ14C = -992‰) during bioremediation. Mass balance indicated that more than 80% of microbial carbon was derived from petroleum hydrocarbons and a maximum of 20% was produced from metabolism of modern carbon sources. In contrast, in a nearby uncontaminated control soil, the microbial community maintained a nearly modern 14C signature, suggesting preferential degradation of more labile, recent carbon. Mass balance using δ13C and Δ14C of soil CO2 demonstrated that mineralization of petroleum carbon contributed 60-65% of soil CO2 at the contaminated site. The remainder was derived from atmospheric (27-30%) and decomposition of non- petroleum natural organic carbon (5-10%). The clean control exhibited substantially lower CO2 concentrations that were derived from atmospheric (55%) and natural organic carbon (45%) sources. This study highlights the value of using multiple carbon isotopes to identify degradation pathways in petroleum- contaminated soils undergoing phytoremediation and the power of natural abundance 14C to detect petroleum metabolism in natural microbial communities.

  9. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT/CS

    2014-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and 2 a.m. on 26 August.   Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the Fire Brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work.

  10. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2011-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 20h00 and 2h00 on the 16 November. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. IT/CS

  11. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    TS Department

    2008-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and midnight on 3 December. During this time, the fixed-line telephone and audio-conference services may be disrupted. However, the CCC and the Fire Brigade will be reachable at all times. Mobile telephone services (GSM) will not be affected by this work. For further details please contact mailto:Netops@cern.ch.

  12. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2009-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8h30 and 17h30 on Saturday 9 May. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. IT/CS/CS

  13. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    TS Department

    2008-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and midnight on 3 December. During this time, the fixed-line telephone and audio-conference services may be disrupted. However, the CCC and the Fire Brigade will be reachable at all times. Mobile telephone services (GSM) will not be affected by this work. For further details please contact Netops@cern.ch.

  14. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2011-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 20h00 and midnight on the 21st of February in order to apply the latest software patches. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. CS Group

  15. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    2007-01-01

    Maintenance work on the CERN telephone exchanges will be performed on 10 July from 8 p.m. to midnight. During this intervention, the fixed telephone services, audioconference services and GSM calls made via the 333 prefix may be disrupted. However, the CCC and the fire brigade will be reachable at all times. For more details about this maintenance work, please call the telephone switchboard on 76111 or send an e-mail. Telecom SectionIT/CS

  16. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2009-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 20h00 and midnight on the 29th of July in order to apply the latest software patches. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. IT/CS/CS

  17. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    2007-01-01

    A maintenance of the CERN telephone exchanges will be performed on the 10th of July from 8 p.m. to midnight. During this intervention, the fixed telephone services, audioconference services, and GSM calls made via the 333 prefix may be disrupted. However, the CCC and the fire brigade will be reachable at any time. For more details about this maintenance, please contact the telephone switchboard at 76111 or by email. Telecom Section IT/CS

  18. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    2007-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and midnight on 20 November. Fixed-line telephone and audioconference services may be disrupted while the work is being carried out. However, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. For further details about the maintenance work, please contact the telephone switchboard on 76111 or by email. Telecom Section - IT/CS

  19. Scalable shared-memory multiprocessing

    CERN Document Server

    Lenoski, Daniel E

    1995-01-01

    Dr. Lenoski and Dr. Weber have experience with leading-edge research and practical issues involved in implementing large-scale parallel systems. They were key contributors to the architecture and design of the DASH multiprocessor. Currently, they are involved with commercializing scalable shared-memory technology.

  20. The ACP [Advanced Computer Program] Branch bus and real-time applications of the ACP multiprocessor system

    International Nuclear Information System (INIS)

    Hance, R.; Areti, H.; Atac, R.

    1987-01-01

    The ACP Branchbus, a high speed differential bus for data movement in multiprocessing and data acquisition environments, is described. This bus was designed as the central bus in the ACP multiprocessing system. In its full implementation with 16 branches and a bus switch, it will handle data rates of 160 MByte/sec and allow reliable data transmission over inter rack distances. We also summarize applications of the ACP system in experimental data acquisition, triggering and monitoring, with special attention paid to FASTBUS environments

  1. Finding EL+ justifications using the Earley parsing algorithm

    CSIR Research Space (South Africa)

    Nortje, R

    2009-12-01

    Full Text Available into a reachability preserving context free grammar (CFG). The well known earley algorithm for parsing strings, given some CFG, is then applied to the problem of extracting minimal reachability-based axiom sets for subsumption entailments. The author has...

  2. Functional Abstraction of Stochastic Hybrid Systems

    NARCIS (Netherlands)

    Bujorianu, L.M.; Blom, Henk A.P.; Hermanns, H.

    2006-01-01

    The verification problem for stochastic hybrid systems is quite difficult. One method to verify these systems is stochastic reachability analysis. Concepts of abstractions for stochastic hybrid systems are needed to ease the stochastic reachability analysis. In this paper, we set up different ways

  3. Anomaly-Based Intrusion Detection Systems Utilizing System Call Data

    Science.gov (United States)

    2012-03-01

    52 Table 7. Place Reachability Statistics for Low Level CPN...54 Table 8. Place Reachability Statistics for High Level CPN................................................. 55 Table 9. Password Stealing...the efficiency of traditional anti-virus software tools that are dependent on gigantic , continuously updated databases. Fortunately, Intrusion

  4. Multiprocessing the Sieve of Eratosthenes

    Science.gov (United States)

    Bokhari, S.

    1986-01-01

    The Sieve of Eratosthenes for finding prime numbers in recent years has seen much use as a benchmark algorithm for serial computers while its intrinsically parallel nature has gone largely unnoticed. The implementation of a parallel version of this algorithm for a real parallel computer, the Flex/32, is described and its performance discussed. It is shown that the algorithm is sensitive to several fundamental performance parameters of parallel machines, such as spawning time, signaling time, memory access, and overhead of process switching. Because of the nature of the algorithm, it is impossible to get any speedup beyond 4 or 5 processors unless some form of dynamic load balancing is employed. We describe the performance of our algorithm with and without load balancing and compare it with theoretical lower bounds and simulated results. It is straightforward to understand this algorithm and to check the final results. However, its efficient implementation on a real parallel machine requires thoughtful design, especially if dynamic load balancing is desired. The fundamental operations required by the algorithm are very simple: this means that the slightest overhead appears prominently in performance data. The Sieve thus serves not only as a very severe test of the capabilities of a parallel processor but is also an interesting challenge for the programmer.

  5. Multiprocessing the Sieve of Eratosthenes

    Energy Technology Data Exchange (ETDEWEB)

    Bokhari, S.H.

    1987-04-01

    More than two thousand years ago, Eratosthenes of Cyrene described a procedure for finding all prime numbers in a given range. This straightforward algorithm, known as the Sieve of Eratosthenes, is to this day the only procedure for finding prime numbers. In recent years it has been of interest to computer scientists and engineers because it serves as a convenient benchmark against which to measure some aspects of a computer's performance. Specifically, the Sieve tests the power of a machine (or of a compiler) to access a very large array in memory rapidly and repeatedly. This power is clearly influenced by memory access time, the speed at which indexing is done, and the overhead of looping. The parallel version of the Sieve is very useful as a test of some of the capabilities of a parallel machine. The parallel algorithm is straightforward, and so is the process for checking the final results. However, the efficient implementation of the algorithm on a real parallel machine, especially in the dynamic load-balancing case, requires thoughtful design.

  6. Expressing Parallelism with ROOT

    Energy Technology Data Exchange (ETDEWEB)

    Piparo, D. [CERN; Tejedor, E. [CERN; Guiraud, E. [CERN; Ganis, G. [CERN; Mato, P. [CERN; Moneta, L. [CERN; Valls Pla, X. [CERN; Canal, P. [Fermilab

    2017-11-22

    The need for processing the ever-increasing amount of data generated by the LHC experiments in a more efficient way has motivated ROOT to further develop its support for parallelism. Such support is being tackled both for shared-memory and distributed-memory environments. The incarnations of the aforementioned parallelism are multi-threading, multi-processing and cluster-wide executions. In the area of multi-threading, we discuss the new implicit parallelism and related interfaces, as well as the new building blocks to safely operate with ROOT objects in a multi-threaded environment. Regarding multi-processing, we review the new MultiProc framework, comparing it with similar tools (e.g. multiprocessing module in Python). Finally, as an alternative to PROOF for cluster-wide executions, we introduce the efforts on integrating ROOT with state-of-the-art distributed data processing technologies like Spark, both in terms of programming model and runtime design (with EOS as one of the main components). For all the levels of parallelism, we discuss, based on real-life examples and measurements, how our proposals can increase the productivity of scientists.

  7. Expressing Parallelism with ROOT

    Science.gov (United States)

    Piparo, D.; Tejedor, E.; Guiraud, E.; Ganis, G.; Mato, P.; Moneta, L.; Valls Pla, X.; Canal, P.

    2017-10-01

    The need for processing the ever-increasing amount of data generated by the LHC experiments in a more efficient way has motivated ROOT to further develop its support for parallelism. Such support is being tackled both for shared-memory and distributed-memory environments. The incarnations of the aforementioned parallelism are multi-threading, multi-processing and cluster-wide executions. In the area of multi-threading, we discuss the new implicit parallelism and related interfaces, as well as the new building blocks to safely operate with ROOT objects in a multi-threaded environment. Regarding multi-processing, we review the new MultiProc framework, comparing it with similar tools (e.g. multiprocessing module in Python). Finally, as an alternative to PROOF for cluster-wide executions, we introduce the efforts on integrating ROOT with state-of-the-art distributed data processing technologies like Spark, both in terms of programming model and runtime design (with EOS as one of the main components). For all the levels of parallelism, we discuss, based on real-life examples and measurements, how our proposals can increase the productivity of scientists.

  8. Proprioceptive body illusions modulate the visual perception of reaching distance.

    Directory of Open Access Journals (Sweden)

    Agustin Petroni

    Full Text Available The neurobiology of reaching has been extensively studied in human and non-human primates. However, the mechanisms that allow a subject to decide-without engaging in explicit action-whether an object is reachable are not fully understood. Some studies conclude that decisions near the reach limit depend on motor simulations of the reaching movement. Others have shown that the body schema plays a role in explicit and implicit distance estimation, especially after motor practice with a tool. In this study we evaluate the causal role of multisensory body representations in the perception of reachable space. We reasoned that if body schema is used to estimate reach, an illusion of the finger size induced by proprioceptive stimulation should propagate to the perception of reaching distances. To test this hypothesis we induced a proprioceptive illusion of extension or shrinkage of the right index finger while participants judged a series of LEDs as reachable or non-reachable without actual movement. Our results show that reach distance estimation depends on the illusory perceived size of the finger: illusory elongation produced a shift of reaching distance away from the body whereas illusory shrinkage produced the opposite effect. Combining these results with previous findings, we suggest that deciding if a target is reachable requires an integration of body inputs in high order multisensory parietal areas that engage in movement simulations through connections with frontal premotor areas.

  9. Energy and Technology Review

    International Nuclear Information System (INIS)

    1984-10-01

    This issue features articles on multiprocessing computers, fission and fusion breeder reactors, and supracompression of high-explosive detonation products. Abstracts were prepared separately for each article

  10. Particle accelerator control and data acquisition in the context of VAX/VMS

    International Nuclear Information System (INIS)

    Schaller, S.C.; Corley, J.K.

    1983-01-01

    The Los Alamos Meson Physics Facility (LAMPF) Control System monitors and controls a linear accelerator through more than 10,000 widely disparate I/O devices. The heart of the Control System software is the Data System, which provides a uniform application program interface based on symbolic device names. In many ways the Data System parallels the VAX/VMS Record Management Services (RMS) in its needs for asynchronous operations, protection, and locks for multiprocess interactions. Since the accelerator control hardware is continually changing, it is important that privileged code be kept to a minimum or be testable in a non-privileged environment. This paper describes the LAMPF Data System design including the use of VAX/VMS user written system services (both kernel and supervisor mode), a user supplied image rundown routine, the VAX/VMS lock manager, and a large (3.5 Mbyte) protected global section

  11. MCNP load balancing and fault tolerance with PVM

    International Nuclear Information System (INIS)

    McKinney, G.W.

    1995-01-01

    Version 4A of the Monte Carlo neutron, photon, and electron transport code MCNP, developed by LANL (Los Alamos National Laboratory), supports distributed-memory multiprocessing through the software package PVM (Parallel Virtual Machine, version 3.1.4). Using PVM for interprocessor communication, MCNP can simultaneously execute a single problem on a cluster of UNIX-based workstations. This capability provided system efficiencies that exceeded 80% on dedicated workstation clusters, however, on heterogeneous or multiuser systems, the performance was limited by the slowest processor (i.e., equal work was assigned to each processor). The next public release of MCNP will provide multiprocessing enhancements that include load balancing and fault tolerance which are shown to dramatically increase multiuser system efficiency and reliability

  12. Adaptive runtime for a multiprocessing API

    Science.gov (United States)

    Antao, Samuel F.; Bertolli, Carlo; Eichenberger, Alexandre E.; O'Brien, John K.

    2016-11-15

    A computer-implemented method includes selecting a runtime for executing a program. The runtime includes a first combination of feature implementations, where each feature implementation implements a feature of an application programming interface (API). Execution of the program is monitored, and the execution uses the runtime. Monitor data is generated based on the monitoring. A second combination of feature implementations are selected, by a computer processor, where the selection is based at least in part on the monitor data. The runtime is modified by activating the second combination of feature implementations to replace the first combination of feature implementations.

  13. Reachability Analysis of Probabilistic Systems

    DEFF Research Database (Denmark)

    D'Argenio, P. R.; Jeanett, B.; Jensen, Henrik Ejersbo

    2001-01-01

    than the original model, and may safely refute or accept the required property. Otherwise, the abstraction is refined and the process repeated. As the numerical analysis involved in settling the validity of the property is more costly than the refinement process, the method profits from applying...... such numerical analysis on smaller state spaces. The method is significantly enhanced by a number of novel strategies: a strategy for reducing the size of the numerical problems to be analyzed by identification of so-called {essential states}, and heuristic strategies for guiding the refinement process....

  14. Efficient On-the-fly Algorithms for the Analysis of Timed Games

    DEFF Research Database (Denmark)

    Cassez, Franck; David, Alexandre; Fleury, Emmanuel

    2005-01-01

    In this paper, we propose the first efficient on-the-fly algorithm for solving games based on timed game automata with respect to reachability and safety properties The algorithm we propose is a symbolic extension of the on-the-fly algorithm suggested by Liu & Smolka [15] for linear-time model-ch...... symbolic algorithm are proposed as well as methods for obtaining time-optimal winning strategies (for reachability games). Extensive evaluation of an experimental implementation of the algorithm yields very encouraging performance results.......In this paper, we propose the first efficient on-the-fly algorithm for solving games based on timed game automata with respect to reachability and safety properties The algorithm we propose is a symbolic extension of the on-the-fly algorithm suggested by Liu & Smolka [15] for linear-time model...

  15. On Time with Minimal Expected Cost!

    DEFF Research Database (Denmark)

    David, Alexandre; Jensen, Peter Gjøl; Larsen, Kim Guldstrand

    2014-01-01

    (Priced) timed games are two-player quantitative games involving an environment assumed to be completely antogonistic. Classical analysis consists in the synthesis of strategies ensuring safety, time-bounded or cost-bounded reachability objectives. Assuming a randomized environment, the (priced......) timed game essentially defines an infinite-state Markov (reward) decision proces. In this setting the objective is classically to find a strategy that will minimize the expected reachability cost, but with no guarantees on worst-case behaviour. In this paper, we provide efficient methods for computing...... reachability strategies that will both ensure worst case time-bounds as well as provide (near-) minimal expected cost. Our method extends the synthesis algorithms of the synthesis tool Uppaal-Tiga with suitable adapted reinforcement learning techniques, that exhibits several orders of magnitude improvements w...

  16. Recursion vs. Replication in Simple Cryptographic Protocols

    DEFF Research Database (Denmark)

    Huttel, Hans; Srba, Jiri

    2005-01-01

    We use some recent techniques from process algebra to draw several conclusions about the well studied class of ping-pong protocols introduced by Dolev and Yao. In particular we show that all nontrivial properties, including reachability and equivalence checking wrt. the whole van Glabbeek's spect...... of messages in the sense of Amadio, Lugiez and Vanackere. We conclude by showing that reachability analysis for a replicative variant of the protocol becomes decidable....

  17. Terahertz cross-phase modulation of an optical mode

    DEFF Research Database (Denmark)

    Lavrinenko, Andrei; Novitsky, Andrey; Zalkovskij, Maksim

    2013-01-01

    We discuss an optical scheme which facilitates modulation of an optical waveguide mode by metallic-nanoslit-enhanced THz radiation. The waveguide mode acquires an additional phase shift due to THz nonlinearity with fields reachable in experiments.......We discuss an optical scheme which facilitates modulation of an optical waveguide mode by metallic-nanoslit-enhanced THz radiation. The waveguide mode acquires an additional phase shift due to THz nonlinearity with fields reachable in experiments....

  18. A Mobile IPv6 based Distributed Mobility Management Mechanism of Mobile Internet

    Science.gov (United States)

    Yan, Shi; Jiayin, Cheng; Shanzhi, Chen

    A flatter architecture is one of the trends of mobile Internet. Traditional centralized mobility management mechanism faces the challenges such as scalability and UE reachability. A MIPv6 based distributed mobility management mechanism is proposed in this paper. Some important network entities and signaling procedures are defined. UE reachability is also considered in this paper through extension to DNS servers. Simulation results show that the proposed approach can overcome the scalability problem of the centralized scheme.

  19. Concurrent LISP and its interpreter

    Energy Technology Data Exchange (ETDEWEB)

    Tabata, K; Sugimoto, S; Ohno, Y

    1981-01-01

    In the research field of artificial intelligence many languages have been developed based on LISP, such as Planner, Conniver and so on. They have been developed to give users many useful facilities, especially for describing flexible control structures. Backtracking and coroutine facilities are typical ones introduced into these languages. Compared with backtracking and coroutine facilities, multi-process description facilities are considered to be a better alternative for writing well-structured programs. This paper describes concurrent LISP, a new concurrent programming language based on LISP. Concurrent LISP is designed to provide simple and flexible facilities for multi-process description without changing the original language features of LISP. This paper also describes the concurrent LISP interpreter which has been implemented on a FACOM M-200 at the Data Processing Center of Kyoto University. 19 references.

  20. A Grasp-Pose Generation Method Based on Gaussian Mixture Models

    Directory of Open Access Journals (Sweden)

    Wenjia Wu

    2015-11-01

    Full Text Available A Gaussian Mixture Model (GMM-based grasp-pose generation method is proposed in this paper. Through offline training, the GMM is set up and used to depict the distribution of the robot's reachable orientations. By dividing the robot's workspace into small 3D voxels and training the GMM for each voxel, a look-up table covering all the workspace is built with the x, y and z positions as the index and the GMM as the entry. Through the definition of Task Space Regions (TSR, an object's feasible grasp poses are expressed as a continuous region. With the GMM, grasp poses can be preferentially sampled from regions with high reachability probabilities in the online grasp-planning stage. The GMM can also be used as a preliminary judgement of a grasp pose's reachability. Experiments on both a simulated and a real robot show the superiority of our method over the existing method.

  1. Vacuum mechatronics first international workshop

    Energy Technology Data Exchange (ETDEWEB)

    Belinski, S.E.; Shirazi, M.; Hackwood, S.; Beni, G. (eds.) (California Univ., Santa Barbara, CA (USA))

    1989-01-01

    This report contains papers on the following topics: proposed epitaxial thin film growth in the ultra-vacuum of space; particle monitoring and control in vacuum processing equipment; electrostatic dust collector for use in vacuum systems; materials evaluation of an electrically noisy vacuum slip ring assembly; an overview of lubrication and associated materials for vacuum service; the usage of lubricants in a vacuum environment; guidelines and practical applications for lubrication in vacuum; recent development in leak detector and calibrator designs; the durability of ballscrews for ultrahigh vacuum; vacuum-compatible robot for self-contained manufacturing systems; the design, fabrication, and assembly of an advanced vacuum robotics system for space payload calibration; design criteria for mechanisms used in space; and concepts and requirements for semiconductor multiprocess integration in vacuum. These papers are indexed separately elsewhere.

  2. Simulation of experimental breakthrough curves using multiprocess ...

    Indian Academy of Sciences (India)

    The transport of contaminant through porous media is a very complex ... Elzein & Booker (1999) presented boundary element method to solve ... Because of minimum flow through immobile region, it is behaving as a dis- ..... before performing the experiments to measure the concentration of free chloride and fluoride.

  3. Criteria for reachability of quantum states

    Energy Technology Data Exchange (ETDEWEB)

    Schirmer, S.G.; Solomon, A.I. [Quantum Processes Group and Department of Applied Maths, Open University, Milton Keynes (United Kingdom)]. E-mails: S.G.Schirmer@open.ac.uk; A.I.Solomon@open.ac.uk; Leahy, J.V. [Department of Mathematics and Institute of Theoretical Science, University of Oregon, Eugene, OR (United States)]. E-mail: leahy@math.uoregon.edu

    2002-10-11

    We address the question of which quantum states can be inter-converted under the action of a time-dependent Hamiltonian. In particular, we consider the problem as applied to mixed states, and investigate the difference between pure- and mixed-state controllabilities introduced in previous work. We provide a complete characterization of the eigenvalue spectrum for which the state is controllable under the action of the symplectic group. We also address the problem of which states can be prepared if the dynamical Lie group is not sufficiently large to allow the system to be controllable. (author)

  4. Probabilistic Reachability for Parametric Markov Models

    DEFF Research Database (Denmark)

    Hahn, Ernst Moritz; Hermanns, Holger; Zhang, Lijun

    2011-01-01

    Given a parametric Markov model, we consider the problem of computing the rational function expressing the probability of reaching a given set of states. To attack this principal problem, Daws has suggested to first convert the Markov chain into a finite automaton, from which a regular expression...

  5. Importance Sampling for Stochastic Timed Automata

    DEFF Research Database (Denmark)

    Jegourel, Cyrille; Larsen, Kim Guldstrand; Legay, Axel

    2016-01-01

    We present an importance sampling framework that combines symbolic analysis and simulation to estimate the probability of rare reachability properties in stochastic timed automata. By means of symbolic exploration, our framework first identifies states that cannot reach the goal. A state-wise cha......We present an importance sampling framework that combines symbolic analysis and simulation to estimate the probability of rare reachability properties in stochastic timed automata. By means of symbolic exploration, our framework first identifies states that cannot reach the goal. A state...

  6. CSP for Executable Scientific Workflows

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard

    and can usually benefit performance-wise from both multiprocessing, cluster and grid environments. PyCSP is an implementation of Communicating Sequential Processes (CSP) for the Python programming language and takes advantage of CSP's formal and verifiable approach to controlling concurrency...... on multi-processing and cluster computing using PyCSP. Additionally, McStas is demonstrated to utilise grid computing resources using PyCSP. Finally, this thesis presents a new dynamic channel model, which has not yet been implemented for PyCSP. The dynamic channel is able to change the internal...... synchronisation mechanisms on-the-fly, depending on the location and number of channel-ends connected. Thus it may start out as a simple local pipe and evolve into a distributed channel spanning multiple nodes. This channel is a necessary next step for PyCSP to allow for complete freedom in executing CSP...

  7. Analisis Faktor – Faktor Pendukung Pengambilan Keputusan Memilih Rumah Sakit Rujukan Di Bangka Belitung Dengan Analitycal Hierarchy Process

    Directory of Open Access Journals (Sweden)

    Hilyah Magdalena

    2017-11-01

    Full Text Available Health services are basic services whose implementation is protected and guaranteed by the government. The existence of BPJS makes health services easier, more secure, and reachable to all levels of society. When a patient's health condition requires a higher facility, patients are generally referred to a higher-level health facility. In the province of Bangka Belitung currently stands several hospitals with various levels and completeness of facilities, ranging from provincial public hospitals, local public hospitals, to private hospitals. Patients who need referral can adjust the choice of the hospital with their health condition. The diverse needs of referral health care services and the diversity of hospitals with their services make decision making difficult. This study focuses on analyzing what factors are the basis of patient consideration in choosing a referral hospital. To support the multicriteria and multi-alternative selection process, this study uses the Analytical Hierarchy Process (AHP. The results of data processing showed that the most important criterion for patients when choosing a referral hospital was a health service attribute weighing 19.2% and the patients referred to were mostly referral patients in wards of wards with a weight of 24.2%.

  8. Resource-Constrained Optimal Scheduling of Synchronous Dataflow Graphs via Timed Automata

    NARCIS (Netherlands)

    Ahmad, W.; de Groote, Robert; Holzenspies, P.K.F.; Stoelinga, Mariëlle Ida Antoinette; van de Pol, Jan Cornelis

    Synchronous dataflow (SDF) graphs are a widely used formalism for modelling, analysing and realising streaming applications, both on a single processor and in a multiprocessing context. Efficient schedules are essential to obtain maximal throughput under the constraint of available resources. This

  9. Pseudo-Random Number Generators for Vector Processors and Multicore Processors

    DEFF Research Database (Denmark)

    Fog, Agner

    2015-01-01

    Large scale Monte Carlo applications need a good pseudo-random number generator capable of utilizing both the vector processing capabilities and multiprocessing capabilities of modern computers in order to get the maximum performance. The requirements for such a generator are discussed. New ways...

  10. Automatic Management of Parallel and Distributed System Resources

    Science.gov (United States)

    Yan, Jerry; Ngai, Tin Fook; Lundstrom, Stephen F.

    1990-01-01

    Viewgraphs on automatic management of parallel and distributed system resources are presented. Topics covered include: parallel applications; intelligent management of multiprocessing systems; performance evaluation of parallel architecture; dynamic concurrent programs; compiler-directed system approach; lattice gaseous cellular automata; and sparse matrix Cholesky factorization.

  11. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Numerical modelling of multicomponent LNAPL dissolution kinetics at residual saturation in a ... Simulation of experimental breakthrough curves using multiprocess .... effects on weld geometry of dissimilar steels during the spot welding process ... using similarity transformations and solved using the Matlab bvp4c package.

  12. New development of JFT-2M Tokamak (3) data processing system

    International Nuclear Information System (INIS)

    Fukuchi, Y.; Oyabu, I.; Hirose, T.; Ichimura, H.; Inoue, K.; Komoto, Y.

    1986-01-01

    A data acquisition system for JFT-2M Tokamak is a computer complex system consisting of a CAMAC serial highway, a front-end computer, and a main computer, which are ranked in a definite hierarchical structure. This paper reports the data processing system by the main computer (using a super-mini-computer MELCOM 70/250) which is situated on the highest level in the data acquisition system and performs unified management and control over the system. The features of the data processing system by the main computer are as follows: (1) Expandability of the system based on the definite hierarchical structure; (2) Five-dimensional multi-processing (setup, acquisition, analysis, display, and storage); (3) Realization of RAS (Reliability, Availability, and Serviceability) function; and (4) Easy-to-use man-machine interface that provides: flexibility in CAMAC system configuration, open-ended interface and file history managing

  13. Parallel processing Monte Carlo radiation transport codes

    International Nuclear Information System (INIS)

    McKinney, G.W.

    1994-01-01

    Issues related to distributed-memory multiprocessing as applied to Monte Carlo radiation transport are discussed. Measurements of communication overhead are presented for the radiation transport code MCNP which employs the communication software package PVM, and average efficiency curves are provided for a homogeneous virtual machine

  14. Innovation in Services: From Service Concepts to Service Experiences

    OpenAIRE

    Fynes, Brian; Lally, Anne Marie

    2008-01-01

    ABSTRACT Identifying the nature of service experiences is recognised As being of primary importance in the shaping of an enhanced competitive position for industry; however service managers often have difficulty articulating the true nature of their service concept. The definition of service concept is a fundamental part of the strategic advantage seeking Processes of service design, service development and service innovation. In response to the competitive Imperative for improved product/...

  15. Minimum Energy Control of 2D Positive Continuous-Discrete Linear Systems

    Directory of Open Access Journals (Sweden)

    Kaczorek Tadeusz

    2014-09-01

    Full Text Available The minimum energy control problem for the 2D positive continuous-discrete linear systems is formulated and solved. Necessary and sufficient conditions for the reachability at the point of the systems are given. Sufficient conditions for the existence of solution to the problem are established. It is shown that if the system is reachable then there exists an optimal input that steers the state from zero boundary conditions to given final state and minimizing the performance index for only one step (q = 1. A procedure for solving of the problem is proposed and illustrated by a numerical example.

  16. On Nonlinear Prices in Timed Automata

    Directory of Open Access Journals (Sweden)

    Devendra Bhave

    2016-12-01

    Full Text Available Priced timed automata provide a natural model for quantitative analysis of real-time systems and have been successfully applied in various scheduling and planning problems. The optimal reachability problem for linearly-priced timed automata is known to be PSPACE-complete. In this paper we investigate priced timed automata with more general prices and show that in the most general setting the optimal reachability problem is undecidable. We adapt and implement the construction of Audemard, Cimatti, Kornilowicz, and Sebastiani for non-linear priced timed automata using state-of-the-art theorem prover Z3 and present some preliminary results.

  17. CONSUMERS’ PREFERENCE TOWARD ISLAMIC BANKING

    Directory of Open Access Journals (Sweden)

    delta khairunnisa

    2017-06-01

    Full Text Available Objective - This research aims to provide empirical evidence on the factors motivating consumers to save in Islamic banking.Methods - The one sample t-test is employed to test hypothesis. The validity and the reliability of research variables have been examined.Results - The result proved that consumers’ decision to save in Islamic banking are influenced by economic and religious factors, such as receiving economic benefits, quick services, online facilities, easily reachable locations, and having a better understanding of Islamic principles.Conclusions - The existence of a relationship between economic and religious preference proves that, in making decisions, consumers wish to attain two satisfaction levels: satisfaction in the world and in the hereafter.

  18. Real-Time Systems: Reflections on higher education in the Czech Republic, Hungary, Poland and Slovenia

    NARCIS (Netherlands)

    File, Jonathan M.; Goedegebuure, Leo; Goedegebuure, L.C.J.

    2003-01-01

    Real-time systems (An ICT definition) In real-time multiprocessing there is the extra requirement that the system complete its response to any input within a certain critical time. This poses additional problems, particularly in situations where the system is heavily loaded and is subject to many

  19. Super-Positioning of Voltage Sources for Fast Assessment of Wide-Area Thévenin Equivalents

    DEFF Research Database (Denmark)

    Møller, Jakob Glarbo; Jóhannsson, Hjörtur; Østergaard, Jacob

    2017-01-01

    and parallelized for shared memory multiprocessing. The proposed algorithm is tested on a collection of large test systems and performance is found to be significantly better than the reference method. The algorithm will thereby facilitate a speed-up of methods relying on Thévenin equivalent representation...

  20. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The presence of physical and chemical non-equilibrium are observed from the pattern of breakthrough curves. Multi-process non-equilibrium model represents the combined effect of physical and chemical non-ideality in the stratified aquifer system. The results show that the incorporation of distance dependent dispersivity ...

  1. Improvement and speed optimization of numerical tsunami modelling program using OpenMP technology

    Science.gov (United States)

    Chernov, A.; Zaytsev, A.; Yalciner, A.; Kurkin, A.

    2009-04-01

    Currently, the basic problem of tsunami modeling is low speed of calculations which is unacceptable for services of the operative notification. Existing algorithms of numerical modeling of hydrodynamic processes of tsunami waves are developed without taking the opportunities of modern computer facilities. There is an opportunity to have considerable acceleration of process of calculations by using parallel algorithms. We discuss here new approach to parallelization tsunami modeling code using OpenMP Technology (for multiprocessing systems with the general memory). Nowadays, multiprocessing systems are easily accessible for everyone. The cost of the use of such systems becomes much lower comparing to the costs of clusters. This opportunity also benefits all programmers to apply multithreading algorithms on desktop computers of researchers. Other important advantage of the given approach is the mechanism of the general memory - there is no necessity to send data on slow networks (for example Ethernet). All memory is the common for all computing processes; it causes almost linear scalability of the program and processes. In the new version of NAMI DANCE using OpenMP technology and multi-threading algorithm provide 80% gain in speed in comparison with the one-thread version for dual-processor unit. The speed increased and 320% gain was attained for four core processor unit of PCs. Thus, it was possible to reduce considerably time of performance of calculations on the scientific workstations (desktops) without complete change of the program and user interfaces. The further modernization of algorithms of preparation of initial data and processing of results using OpenMP looks reasonable. The final version of NAMI DANCE with the increased computational speed can be used not only for research purposes but also in real time Tsunami Warning Systems.

  2. On the Scalability of Time-predictable Chip-Multiprocessing

    DEFF Research Database (Denmark)

    Puffitsch, Wolfgang; Schoeberl, Martin

    2012-01-01

    Real-time systems need a time-predictable execution platform to be able to determine the worst-case execution time statically. In order to be time-predictable, several advanced processor features, such as out-of-order execution and other forms of speculation, have to be avoided. However, just using...... simple processors is not an option for embedded systems with high demands on computing power. In order to provide high performance and predictability we argue to use multiprocessor systems with a time-predictable memory interface. In this paper we present the scalability of a Java chip......-multiprocessor system that is designed to be time-predictable. Adding time-predictable caches is mandatory to achieve scalability with a shared memory multi-processor system. As Java bytecode retains information about the nature of memory accesses, it is possible to implement a memory hierarchy that takes...

  3. Prospects of experimentally reachable beyond Standard Model ...

    Indian Academy of Sciences (India)

    2016-01-06

    Jan 6, 2016 ... Since then, the theory has been experimentally verified to a ... Despite the fact that SM has unravelled the gauge origin of fundamental forces and the structure of Universe while successfully confronting numerous ...

  4. Link-Based Similarity Measures Using Reachability Vectors

    Directory of Open Access Journals (Sweden)

    Seok-Ho Yoon

    2014-01-01

    Full Text Available We present a novel approach for computing link-based similarities among objects accurately by utilizing the link information pertaining to the objects involved. We discuss the problems with previous link-based similarity measures and propose a novel approach for computing link based similarities that does not suffer from these problems. In the proposed approach each target object is represented by a vector. Each element of the vector corresponds to all the objects in the given data, and the value of each element denotes the weight for the corresponding object. As for this weight value, we propose to utilize the probability of reaching from the target object to the specific object, computed using the “Random Walk with Restart” strategy. Then, we define the similarity between two objects as the cosine similarity of the two vectors. In this paper, we provide examples to show that our approach does not suffer from the aforementioned problems. We also evaluate the performance of the proposed methods in comparison with existing link-based measures, qualitatively and quantitatively, with respect to two kinds of data sets, scientific papers and Web documents. Our experimental results indicate that the proposed methods significantly outperform the existing measures.

  5. Spatio-temporal networks: reachability, centrality and robustness.

    Science.gov (United States)

    Williams, Matthew J; Musolesi, Mirco

    2016-06-01

    Recent advances in spatial and temporal networks have enabled researchers to more-accurately describe many real-world systems such as urban transport networks. In this paper, we study the response of real-world spatio-temporal networks to random error and systematic attack, taking a unified view of their spatial and temporal performance. We propose a model of spatio-temporal paths in time-varying spatially embedded networks which captures the property that, as in many real-world systems, interaction between nodes is non-instantaneous and governed by the space in which they are embedded. Through numerical experiments on three real-world urban transport systems, we study the effect of node failure on a network's topological, temporal and spatial structure. We also demonstrate the broader applicability of this framework to three other classes of network. To identify weaknesses specific to the behaviour of a spatio-temporal system, we introduce centrality measures that evaluate the importance of a node as a structural bridge and its role in supporting spatio-temporally efficient flows through the network. This exposes the complex nature of fragility in a spatio-temporal system, showing that there is a variety of failure modes when a network is subject to systematic attacks.

  6. Sparse Dataflow Analysis with Pointers and Reachability

    DEFF Research Database (Denmark)

    Madsen, Magnus; Møller, Anders

    2014-01-01

    quadtrees. The framework is presented as a systematic modification of a traditional dataflow analysis algorithm. Our experimental results demonstrate the effectiveness of the technique for a suite of JavaScript programs. By also comparing the performance with an idealized staged approach that computes...

  7. Wind Corrections in Flight Path Planning

    Directory of Open Access Journals (Sweden)

    Martin Selecký

    2013-05-01

    Full Text Available Abstract When operating autonomous unmanned aerial vehicles (UAVs in real environments it is necessary to deal with the effects of wind that causes the aircraft to drift in a certain direction. In such conditions it is hard or even impossible for UAVs with a bounded turning rate to follow certain trajectories. We designed a method based on an Accelerated A* algorithm that allows the trajectory planner to take the wind effects into account and to generate states that are reachable by UAV. This method was tested on hardware UAV and the reachability of its generated trajectories was compared to the trajectories computed by the original Accelerated A*.

  8. Architectural development of an advanced EVA Electronic System

    Science.gov (United States)

    Lavelle, Joseph

    1992-01-01

    An advanced electronic system for future EVA missions (including zero gravity, the lunar surface, and the surface of Mars) is under research and development within the Advanced Life Support Division at NASA Ames Research Center. As a first step in the development, an optimum system architecture has been derived from an analysis of the projected requirements for these missions. The open, modular architecture centers around a distributed multiprocessing concept where the major subsystems independently process their own I/O functions and communicate over a common bus. Supervision and coordination of the subsystems is handled by an embedded real-time operating system kernel employing multitasking software techniques. A discussion of how the architecture most efficiently meets the electronic system functional requirements, maximizes flexibility for future development and mission applications, and enhances the reliability and serviceability of the system in these remote, hostile environments is included.

  9. ATLAS Metadata Infrastructure Evolution for Run 2 and Beyond

    CERN Document Server

    van Gemmeren, Peter; The ATLAS collaboration; Malon, David; Vaniachine, Alexandre

    2015-01-01

    ATLAS developed and employed for Run 1 of the Large Hadron Collider a sophisticated infrastructure for metadata handling in event processing jobs. This infrastructure profits from a rich feature set provided by the ATLAS execution control framework, including standardized interfaces and invocation mechanisms for tools and services, segregation of transient data stores with concomitant object lifetime management, and mechanisms for handling occurrences asynchronous to the control framework’s state machine transitions. This metadata infrastructure is evolving and being extended for Run 2 to allow its use and reuse in downstream physics analyses, analyses that may or may not utilize the ATLAS control framework. At the same time, multiprocessing versions of the control framework and the requirements of future multithreaded frameworks are leading to redesign of components that use an incident-handling approach to asynchrony. The increased use of scatter-gather architectures, both local and distributed, requires ...

  10. Service Modeling for Service Engineering

    Science.gov (United States)

    Shimomura, Yoshiki; Tomiyama, Tetsuo

    Intensification of service and knowledge contents within product life cycles is considered crucial for dematerialization, in particular, to design optimal product-service systems from the viewpoint of environmentally conscious design and manufacturing in advanced post industrial societies. In addition to the environmental limitations, we are facing social limitations which include limitations of markets to accept increasing numbers of mass-produced artifacts and such environmental and social limitations are restraining economic growth. To attack and remove these problems, we need to reconsider the current mass production paradigm and to make products have more added values largely from knowledge and service contents to compensate volume reduction under the concept of dematerialization. Namely, dematerialization of products needs to enrich service contents. However, service was mainly discussed within marketing and has been mostly neglected within traditional engineering. Therefore, we need new engineering methods to look at services, rather than just functions, called "Service Engineering." To establish service engineering, this paper proposes a modeling technique of service.

  11. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. P K Sharma. Articles written in Sadhana. Volume 39 Issue 6 December 2014 pp 1425-1446. Simulation of experimental breakthrough curves using multiprocess non-equilibrium model for reactive solute transport in stratified porous media · Deepak Swami P K Sharma C S P Ojha · More Details ...

  12. Service employees give as they get: internal service as a moderator of the service climate-service outcomes link.

    Science.gov (United States)

    Ehrhart, Karen Holcombe; Witt, L A; Schneider, Benjamin; Perry, Sara Jansen

    2011-03-01

    We lend theoretical insight to the service climate literature by exploring the joint effects of branch service climate and the internal service provided to the branch (the service received from corporate units to support external service delivery) on customer-rated service quality. We hypothesized that service climate is related to service quality most strongly when the internal service quality received is high, providing front-line employees with the capability to deliver what the service climate motivates them to do. We studied 619 employees and 1,973 customers in 36 retail branches of a bank. We aggregated employee perceptions of the internal service quality received from corporate units and the local service climate and external customer perceptions of service quality to the branch level of analysis. Findings were consistent with the hypothesis that high-quality internal service is necessary for branch service climate to yield superior external customer service quality. PsycINFO Database Record (c) 2011 APA, all rights reserved.

  13. Airborne fallout mapping of 137Cs Finnish defence forces team

    International Nuclear Information System (INIS)

    Kettunen, M.; Heininen, T.; Pulakka, M.

    1997-01-01

    The main task of the team was to create a fallout map of 137 Cs in a specified area in Padasjoki Auttoinen village. The team used an MI-8 helicopter of the Finnish Air Force. The team had an HPGe system (relative efficiency 70%) to measure nuclide specific ground contamination level. For navigation the team took advantage of the DGPS service provided by Finnish Broadcasting company utilizing the RDS-channel to get position accuracy within 2 meters. The correction signal is reachable nationwide on the FM transmitter network. The system produced a distribution map for 40 K and fallout maps for 134,137 Cs using a Micro Station Program with TerraModeler application. The maximum measured 137 Cs ground contamination exceeded 130-140 kBqm -2 . (au)

  14. Instrumental Supporting System for Developing and Analysis of Software-Defined Networks of Mobile Objects

    Directory of Open Access Journals (Sweden)

    V. A. Sokolov

    2015-01-01

    Full Text Available This article describes the organization principles for wireless mesh-networks (software-defined net-works of mobile objects. The emphasis is on the questions of getting effective routing algorithms for such networks. The mathematical model of the system is the standard transportation network. The key parameter of the routing system is the node reachability coefficient — the function depending on several basic and additional parameters (“mesh-factors”, which characterize the route between two network nodes. Each pair (arc, node is juxtaposed to a composite parameter which characterizes the “reacha-bility” of the node by the route which begins with this arc. The best (“shortest” route between two nodes is the route with the maximum reachability coefficient. The rules of building and refreshing the routing tables by the network nodes are described. With the announcement from the neighbor the node gets the information about the connection energy and reliability, the announcement time of receipt, the absence of transitional nodes and also about the connection capability. On the basis of this informationthe node applies the penalization (decreasing the reachability coefficient or the reward (increasing the reachability coefficient to all routes through this neighbor node. The penalization / reward scheme has some separate aspects: 1. Penalization for the actuality of information. 2. Penalization / reward for the reliability of a node. 3. Penalization for the connection energy. 4. Penalization for the present connection capability. The simulator of the wireless mesh-network of mobile objects is written. It is based on the suggested heuristic algorithms. The description and characteristics of the simulator are stated in the article. The peculiarities of its program realization are also examined.

  15. The perception of peripersonal space in right and left brain damage hemiplegic patients

    Directory of Open Access Journals (Sweden)

    Angela eBartolo

    2014-01-01

    Full Text Available Peripersonal space, as opposed to extrapersonal space, is the space that contains reachable objects and in which multisensory and sensorimotor integration is enhanced. Thus, the perception of peripersonal space requires combining information on the spatial properties of the environment with information on the current capacity to act. In support of this, recent studies have provided converging evidences that perceiving objects in peripersonal space activates a neural network overlapping with that subtending voluntary motor action and motor imagery. Other studies have also underlined the dominant role of the right hemisphere in motor planning and of the left hemisphere in on-line motor guiding, respectively. In the present study, we investigated the effect of a right or left hemiplegia in the perception of peripersonal space. 16 hemiplegic patients with brain damage to the left (LH or right (RH hemisphere and 8 matched healthy controls (HC performed a colour discrimination, a motor imagery and a reachability judgment task. Analyses of response times and accuracy revealed no variation among the three groups in the colour discrimination task, suggesting the absence of any specific perceptual or decisional deficits in the patient groups. In contrast, the patient groups revealed longer response times in the motor imagery task when performed in reference to the hemiplegic arm (RH and LH or to the healthy arm (RH. Moreover, RH group showed longer response times in the reachability judgement task, but only for stimuli located at the boundary of peripersonal space, which was furthermore significantly reduced in size. Considered together, these results confirm the crucial role of the motor system in motor imagery task and the perception of peripersonal space. They also revealed that right hemisphere damage has a more detrimental effect on reachability estimates, suggesting that motor planning processes contribute specifically to the perception of

  16. Using Service Scenarios to Model Business Services

    DEFF Research Database (Denmark)

    Bækgaard, Lars

    The purpose of the paper is to present and evaluate the notion of service scenarios. A service is work done by a service executor in interaction with a service consumer. A service scenario is a model of a service system and the roles that are played by the actors participating and interacting...... during the execution of a service. The model represents the roles and the interactions between the participants. Service scenarios can be used to model specific services and roles played by human beings and IT systems in the execution of services. The use of service scenarios is demonstrated by means...... of a case study in a public library. The case study indicates that service systems should be understood as socio-technical systems in which service executors and service consumers co-create value in mutual interaction with each other and with a set of shared resources....

  17. Traumatic Brain Injury service (TBI) Service

    Data.gov (United States)

    Department of Veterans Affairs — This Service provides access to Tramatic Brain injury patient data consult notes. The service also provides one write service method writeNote. The Service supports...

  18. Controlling outsourced service delivery : Managing service quality in business service triads

    NARCIS (Netherlands)

    van Iwaarden, J.; van der Valk, W.

    2013-01-01

    Organisations are increasingly sourcing services that become part of their value proposition to their (business) customers from external providers. Often, these services are directly delivered by the service provider to the customer. The buying organisation, service provider and customer operate in

  19. The upgraded Tevatron front end

    International Nuclear Information System (INIS)

    Glass, M.; Zagel, J.; Smith, P.; Marsh, W.; Smolucha, J.

    1990-01-01

    We are replacing the computers which support the CAMAC crates in the Fermilab accelerator control system. We want a significant performance increase, but we still want to be able to service scores of different varieties of CAMAC cards in a manner essentially transparent to console applications software. Our new architecture is based on symmetric multiprocessing. Several processors on the same bus, each running identical software, work simultaneously at satisfying different pieces of a console's request for data. We dynamically adjust the load between the processors. We can obtain more processing power by simply plugging in more processor cards and rebooting. We describe in this paper what we believe to be the interesting architectural features of the new front-end computers. We also note how we use some of the advanced features of the Multibus TM II bus and the Intel 80386 processor design to achieve reliability and expandability of both hardware and software. (orig.)

  20. The Dilemma of Service Productivity and Service Innovation: An Empirical Exploration in Financial Services.

    Science.gov (United States)

    Aspara, Jaakko; Klein, Jan F; Luo, Xueming; Tikkanen, Henrikki

    2018-05-01

    We conduct a systematic exploratory investigation of the effects of firms' existing service productivity on the success of their new service innovations. Although previous research extensively addresses service productivity and service innovation, this is the first empirical study that bridges the gap between these two research streams and examines the links between the two concepts. Based on a comprehensive data set of new service introductions in a financial services market over a 14-year period, we empirically explore the relationship between a firm's existing service productivity and the firm's success in introducing new services to the market. The results unveil a fundamental service productivity-service innovation dilemma: Being productive in existing services increases a firm's willingness to innovate new services proactively but decreases the firm's capabilities of bringing these services to the market successfully. We provide specific insights into the mechanism underlying the complex relationship between a firm's productivity in existing services, its innovation proactivity, and its service innovation success. For managers, we not only unpack and elucidate this dilemma but also demonstrate that a focused customer scope and growth market conditions may enable firms to mitigate the dilemma and successfully pursue service productivity and service innovation simultaneously.

  1. Measuring Moral Thinking from a Neo-Kohlbergian Perspective

    Science.gov (United States)

    Thoma, Stephen J.

    2014-01-01

    The neo-Kohlbergian model revises and extends Lawrence Kohlberg's model of moral reasoning development to better reflect advances in research and theory. In moving from Kohlberg's global stage model to a multi-process description of moral functioning, these modifications are most evident in the ways in which moral thinking is described,…

  2. Parallelization of TMVA Machine Learning Algorithms

    CERN Document Server

    Hajili, Mammad

    2017-01-01

    This report reflects my work on Parallelization of TMVA Machine Learning Algorithms integrated to ROOT Data Analysis Framework during summer internship at CERN. The report consists of 4 impor- tant part - data set used in training and validation, algorithms that multiprocessing applied on them, parallelization techniques and re- sults of execution time changes due to number of workers.

  3. SERVICE QUALITY IN THE PUBLIC SERVICE

    OpenAIRE

    Prabha Ramseook-Munhurrun; Soolakshna D. Lukea-Bhiwajee; Perunjodi Naidoo

    2010-01-01

    The purpose of this paper is to obtain a better understanding of the extent to which service quality is delivered within the Mauritian public service by drawing on front-line employees (FLE) and customer perceptions of service quality. The paper investigates how closely customer expectations of service and FLE perceptions of customer expectations match. SERVQUAL is used to measure service quality amongst FLE and customers in a major public sector department in Mauritius. The survey captures c...

  4. Service registry design: an information service approach

    NARCIS (Netherlands)

    Ferreira Pires, Luis; Wang, J.; van Oostrum, Arjen; Wijnhoven, Alphonsus B.J.M.

    2010-01-01

    A service registry is a Service-Oriented Architecture (SOA) component that keeps a ‘catalogue’ of available services. It stores service specifications so that these specifications can be found by potential users. Discussions on the design of service registries currently focus on technical issues,

  5. 31 CFR 538.406 - Exportation of services; performance of service contracts; legal services.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Exportation of services; performance of service contracts; legal services. 538.406 Section 538.406 Money and Finance: Treasury Regulations... SUDANESE SANCTIONS REGULATIONS Interpretations § 538.406 Exportation of services; performance of service...

  6. The Dilemma of Service Productivity and Service Innovation

    Science.gov (United States)

    Aspara, Jaakko; Klein, Jan F.; Luo, Xueming; Tikkanen, Henrikki

    2017-01-01

    We conduct a systematic exploratory investigation of the effects of firms’ existing service productivity on the success of their new service innovations. Although previous research extensively addresses service productivity and service innovation, this is the first empirical study that bridges the gap between these two research streams and examines the links between the two concepts. Based on a comprehensive data set of new service introductions in a financial services market over a 14-year period, we empirically explore the relationship between a firm’s existing service productivity and the firm’s success in introducing new services to the market. The results unveil a fundamental service productivity-service innovation dilemma: Being productive in existing services increases a firm’s willingness to innovate new services proactively but decreases the firm’s capabilities of bringing these services to the market successfully. We provide specific insights into the mechanism underlying the complex relationship between a firm’s productivity in existing services, its innovation proactivity, and its service innovation success. For managers, we not only unpack and elucidate this dilemma but also demonstrate that a focused customer scope and growth market conditions may enable firms to mitigate the dilemma and successfully pursue service productivity and service innovation simultaneously. PMID:29706764

  7. The service Ouroboros: Designing personas service cycles

    DEFF Research Database (Denmark)

    Gudiksen, Sune Klok; Brandt, Eva

    2014-01-01

    Many companies investigate new business opportunities in a turn from product to service design. As service offerings expand over time and space, such notions as ‘customer journey’ or ‘service blueprint’ have been suggested to grasp and design the nature of the emergent services. However, we find ...... various customers’´service cycles....

  8. Airborne fallout mapping of {sup 137}Cs Finnish defence forces team

    Energy Technology Data Exchange (ETDEWEB)

    Kettunen, M.; Heininen, T. [Finnish Defence Forces Research Centre, Lakiala (Finland); Pulakka, M. [Finnish Air Force Depot, Tampere (Finland)

    1997-12-31

    The main task of the team was to create a fallout map of {sup 137}Cs in a specified area in Padasjoki Auttoinen village. The team used an MI-8 helicopter of the Finnish Air Force. The team had an HPGe system (relative efficiency 70%) to measure nuclide specific ground contamination level. For navigation the team took advantage of the DGPS service provided by Finnish Broadcasting company utilizing the RDS-channel to get position accuracy within 2 meters. The correction signal is reachable nationwide on the FM transmitter network. The system produced a distribution map for {sup 40}K and fallout maps for {sup 134,137}Cs using a Micro Station Program with TerraModeler application. The maximum measured {sup 137}Cs ground contamination exceeded 130-140 kBqm{sup -2}. (au).

  9. Ambulatory care and the law: lien claims where none exist as of right.

    Science.gov (United States)

    Balko, G A

    1995-01-01

    The health care provider, whether an individual or an institution, needs to pay attention to appropriate mechanisms to ensure payment for services or repayment for benefits provided. While statutes provide some protection for large institutions, including health care providers, individual health care providers often are left to their own devices. The employment of a well drafted voluntary lien agreement can not only secure a right of recover against a patient, but where the patient pursues a personal injury claim through an attorney, can also give the health care provider recourse to patient's attorney. Knowing how to assert these liens, what funds are reachable by these lien, and what time factors must be adhered to in order to make the liens effective, are vital to a health care provider's financial well-being.

  10. Airborne fallout mapping of {sup 137}Cs Finnish defence forces team

    Energy Technology Data Exchange (ETDEWEB)

    Kettunen, M; Heininen, T [Finnish Defence Forces Research Centre, Lakiala (Finland); Pulakka, M [Finnish Air Force Depot, Tampere (Finland)

    1998-12-31

    The main task of the team was to create a fallout map of {sup 137}Cs in a specified area in Padasjoki Auttoinen village. The team used an MI-8 helicopter of the Finnish Air Force. The team had an HPGe system (relative efficiency 70%) to measure nuclide specific ground contamination level. For navigation the team took advantage of the DGPS service provided by Finnish Broadcasting company utilizing the RDS-channel to get position accuracy within 2 meters. The correction signal is reachable nationwide on the FM transmitter network. The system produced a distribution map for {sup 40}K and fallout maps for {sup 134,137}Cs using a Micro Station Program with TerraModeler application. The maximum measured {sup 137}Cs ground contamination exceeded 130-140 kBqm{sup -2}. (au).

  11. Investigation into constant envelope orthogonal frequency division multiplexing for polarization-division multiplexing coherent optical communication

    Science.gov (United States)

    Li, Yupeng; Ding, Ding

    2017-09-01

    Benefiting from the high spectral efficiency and low peak-to-average power ratio, constant envelope orthogonal frequency division multiplexing (OFDM) is a promising technique in coherent optical communication. Polarization-division multiplexing (PDM) has been employed as an effective way to double the transmission capacity in the commercial 100 Gb/s PDM-QPSK system. We investigated constant envelope OFDM together with PDM. Simulation results show that the acceptable maximum launch power into the fiber improves 10 and 6 dB for 80- and 320-km transmission, respectively (compared with the conventional PDM OFDM system). The maximum reachable distance of the constant envelope OFDM system is able to reach 800 km, and even 1200 km is reachable if an ideal erbium doped fiber amplifier is employed.

  12. Dynamic Programming and Error Estimates for Stochastic Control Problems with Maximum Cost

    International Nuclear Information System (INIS)

    Bokanowski, Olivier; Picarelli, Athena; Zidani, Hasnaa

    2015-01-01

    This work is concerned with stochastic optimal control for a running maximum cost. A direct approach based on dynamic programming techniques is studied leading to the characterization of the value function as the unique viscosity solution of a second order Hamilton–Jacobi–Bellman (HJB) equation with an oblique derivative boundary condition. A general numerical scheme is proposed and a convergence result is provided. Error estimates are obtained for the semi-Lagrangian scheme. These results can apply to the case of lookback options in finance. Moreover, optimal control problems with maximum cost arise in the characterization of the reachable sets for a system of controlled stochastic differential equations. Some numerical simulations on examples of reachable analysis are included to illustrate our approach

  13. Dynamic Programming and Error Estimates for Stochastic Control Problems with Maximum Cost

    Energy Technology Data Exchange (ETDEWEB)

    Bokanowski, Olivier, E-mail: boka@math.jussieu.fr [Laboratoire Jacques-Louis Lions, Université Paris-Diderot (Paris 7) UFR de Mathématiques - Bât. Sophie Germain (France); Picarelli, Athena, E-mail: athena.picarelli@inria.fr [Projet Commands, INRIA Saclay & ENSTA ParisTech (France); Zidani, Hasnaa, E-mail: hasnaa.zidani@ensta.fr [Unité de Mathématiques appliquées (UMA), ENSTA ParisTech (France)

    2015-02-15

    This work is concerned with stochastic optimal control for a running maximum cost. A direct approach based on dynamic programming techniques is studied leading to the characterization of the value function as the unique viscosity solution of a second order Hamilton–Jacobi–Bellman (HJB) equation with an oblique derivative boundary condition. A general numerical scheme is proposed and a convergence result is provided. Error estimates are obtained for the semi-Lagrangian scheme. These results can apply to the case of lookback options in finance. Moreover, optimal control problems with maximum cost arise in the characterization of the reachable sets for a system of controlled stochastic differential equations. Some numerical simulations on examples of reachable analysis are included to illustrate our approach.

  14. Conceptual service architecture for adaptive mobile location services

    DEFF Research Database (Denmark)

    Schou, Saowanee

    2008-01-01

    This paper presents a conceptual service architecture for adaptive mobile location services designed to be used on the next generation wireless network. The developed service architecture consists of a set of concepts, principles, rules and guidelines for constructing, deploying, and operating...... the mobile location services. The service architecture identifies the components required to build the mobile location services and describes how these components are combined and how they should interact. As a means of exploring the developed conceptual service architecture, an illustrative case study...... of a new-concept tracking service is chosen to demonstrate the applicability of the architecture. Through the case study, the service request and response processes will be illustrated. New possible service functions provided by the developed service architecture will be examined and discussed...

  15. Investigating the Effects of Consumer Innovativeness, Service Quality and Service Switching Costs on Service Loyalty in the Mobile Phone Service Context

    Directory of Open Access Journals (Sweden)

    Farzana Quoquab

    2016-02-01

    Full Text Available The objective of this study is to examine the effects of consumer innovativeness, service quality, service switching costs and service satisfaction on service loyalty among mobile phone service users. A cross sectional survey was employed which yielded 535 responses. Structural equation modelling using the AMOS version 2.0 was utilized to test study the hypotheses. Test results reveal that service satisfaction, service switching costs and service quality are the three antecedents that directly influence service loyalty. However, consumer innovativeness does not have any direct effect on service loyalty. Moreover, service satisfaction is found to be a partial mediator between ‘service quality’ and ‘service loyalty’. Findings from this study will develop insights to enable policy-makers, managers and marketers to better strategize and effectively implement loyalty programs and prevent their customers from switching. This will enhance value creation for both their users and for the industry.

  16. Managing service excellence. Internal customer service training

    International Nuclear Information System (INIS)

    McAnulty, P.C.

    1991-01-01

    WHO ARE OUR CUSTOMERS? Electric Users, regulators, vendors, suppliers, or our own employees? The answer is ALL exclamation point They are all customers. Regardless if they are external or internal customers, one must focus on quality of service delivery in order to maintain customer satisfaction. The most successful companies are quickly realizing that managing SERVICE EX NCE is our only future. For the next decade, the issue of service quality will exceed the issue of productivity. It is very easy to see that the business behind a utility is serving our electric consumers. However, internal customer service - service excellence to employees inside a company is the foundation for success. This paper describes a training program that is being implemented across Duke Power for employees on internal customer service. How we provide service to each other within a company impacts service quality to our external customers. This training refocuses behaviors and perceptions so to concentrate on quality service delivery to our internal customers - our employees. We all have positive and negative experiences with obtaining quality service by either external organizations or internal employees. Therefore, we start with a common foundation. Whether it be a supplier, vendor, or a station administrative group, we have experienced either excellent or poor customer service. All of us have potential in managing the delivery of excellent customer service. However, many of us may need new perspectives so to add depth with which we view and manage service excellence to our internal customers

  17. IoT Service Clustering for Dynamic Service Matchmaking.

    Science.gov (United States)

    Zhao, Shuai; Yu, Le; Cheng, Bo; Chen, Junliang

    2017-07-27

    As the adoption of service-oriented paradigms in the IoT (Internet of Things) environment, real-world devices will open their capabilities through service interfaces, which enable other functional entities to interact with them. In an IoT application, it is indispensable to find suitable services for satisfying users' requirements or replacing the unavailable services. However, from the perspective of performance, it is inappropriate to find desired services from the service repository online directly. Instead, clustering services offline according to their similarity and matchmaking or discovering service online in limited clusters is necessary. This paper proposes a multidimensional model-based approach to measure the similarity between IoT services. Then, density-peaks-based clustering is employed to gather similar services together according to the result of similarity measurement. Based on the service clustering, the algorithms of dynamic service matchmaking, discovery, and replacement will be performed efficiently. Evaluating experiments are conducted to validate the performance of proposed approaches, and the results are promising.

  18. Veridical and False Memory for Text: A Multiprocess Analysis

    Science.gov (United States)

    Singer, Murray; Remillard, Gilbert

    2008-01-01

    People report recognizing discourse inferences at rates that approach target acceptance. Brainerd et al. [Brainerd, C. J., Wright, R., Reyna, V. F., & Mojardin, A. H. (2001). "Conjoint recognition and phantom recollection." "Journal of Experimental Psychology: Learning, Memory, and Cognition, 27", 307-329] proposed that…

  19. Enhancement of multiprocessing environment for the E poultry system

    International Nuclear Information System (INIS)

    Sattar, A.R.; Mustafa, T.; Bibi, S.; Javed, M.Y.

    2009-01-01

    The complete precision poultry system works over the number of multiple logical processes used inside the processors. The efficiency and accuracy can be enhanced by simply optimization of these processes used in processors. This high speed computing requires multitasking and parallel processing to increase the throughput of the system and optimizes use of system resources. In the multitasking environment, when a great number of processes execute in parallel, there may be some data structures like semaphores which are common or shared between different numbers of processes. Due to this sharing, different critical sections are produced. The research work presented in this paper resolves the critical section problem of multiple processes using semaphore implementation. The development of a simulator for the resolution of critical section problem is presented. It is a comprehensive tool which runs a simulation in real time and generates useful data for evaluation. A user friendly and mouse-driven GUI has also been integrated. The developed system has been put through extensive experiments. Results are taken using different sets of processes for different number of common variables on a number of processes. The evaluation results are very promising and could be used to further enhance performance of multi-user and multitasking operating systems under different processors to deal with common semaphores. (author)

  20. Introduction of Virtualization Technology to Multi-Process Model Checking

    Science.gov (United States)

    Leungwattanakit, Watcharin; Artho, Cyrille; Hagiya, Masami; Tanabe, Yoshinori; Yamamoto, Mitsuharu

    2009-01-01

    Model checkers find failures in software by exploring every possible execution schedule. Java PathFinder (JPF), a Java model checker, has been extended recently to cover networked applications by caching data transferred in a communication channel. A target process is executed by JPF, whereas its peer process runs on a regular virtual machine outside. However, non-deterministic target programs may produce different output data in each schedule, causing the cache to restart the peer process to handle the different set of data. Virtualization tools could help us restore previous states of peers, eliminating peer restart. This paper proposes the application of virtualization technology to networked model checking, concentrating on JPF.

  1. FAMP: An example of multiprocessing in high energy physics

    International Nuclear Information System (INIS)

    Hertzberger, L.O.

    1983-04-01

    Possible applications of multi microprocessor systems in the different areas of experimental High Energy Physics are considered. It is shown that these systems, of which the Fast Amsterdam Multi Processor (FAMP) system is an example, are potentially very powerful in on-line and in off-line applications. It is discussed how the potential advantages have been exploited in the FAMP system by a careful choice of hardware and software. An overview is given of the use of the FAMP system for second-stage triggering, on-line event filtering and monitoring purposes in the NA11, UA1 and JADE experiments and of other possible applications. (Auth.)

  2. Service Interaction Flow Analysis Technique for Service Personalization

    DEFF Research Database (Denmark)

    Korhonen, Olli; Kinnula, Marianne; Syrjanen, Anna-Liisa

    2017-01-01

    Service interaction flows are difficult to capture, analyze, outline, and represent for research and design purposes. We examine how variation of personalized service flows in technology-mediated service interaction can be modeled and analyzed to provide information on how service personalization...... could support interaction. We have analyzed service interaction cases in a context of technology-mediated car rental service. With the analysis technique we propose, inspired by Interaction Analysis method, we were able to capture and model the situational service interaction. Our contribution regarding...... technology-mediated service interaction design is twofold: First, with the increased understanding on the role of personalization in managing variation in technology-mediated service interaction, our study contributes to designing service management information systems and human-computer interfaces...

  3. Semantic Service Search, Service Evaluation and Ranking in Service Oriented Environment

    Science.gov (United States)

    Dong, Hai; Hussain, Farookh Khadeer; Chang, Elizabeth

    The theory of Service Oriented Environment (SOE) emerges with advanced connectivity of the Internet technologies, openness of business environment and prosperousness of business activities. Service, as a critical object impenetrating every corner of SOE, is a hot research topic in many research domains. Software Engineering (SE), as a subject in engineering field, its researchers pay more attention to supporting advanced technologies for promoting service activities in SOE. In this paper, we draw the position in the research field of semantic service search, service evaluation and ranking in SOE. By means of the case study and literature review research approach, we discover the research motivations and research issues in this field.

  4. Service validity and service reliability of search, experience and credence services. A scenario study

    NARCIS (Netherlands)

    Galetzka, Mirjam; Verhoeven, J.W.M.; Pruyn, Adriaan T.H.

    2006-01-01

    The purpose of this research is to add to our understanding of the antecedents of customer satisfaction by examining the effects of service reliability (Is the service “correctly” produced?) and service validity (Is the “correct” service produced?) of search, experience and credence services.

  5. Multimedia services in intelligent environments recommendation services

    CERN Document Server

    Virvou, Maria; Jain, Lakhmi

    2013-01-01

    Multimedia services are now commonly used in various activities in the daily lives of humans. Related application areas include services that allow access to large depositories of information, digital libraries, e-learning and e-education, e-government and e-governance, e-commerce and e-auctions, e-entertainment, e-health and e-medicine, and e-legal services, as well as their mobile counterparts (i.e., m-services). Despite the tremendous growth of multimedia services over the recent years, there is an increasing demand for their further development. This demand is driven by the ever-increasing desire of society for easy accessibility to information in friendly, personalized and adaptive environments. In this book at hand, we examine recent Recommendation Services. Recommendation services appear in the mobile environment, medicine/biology, tourism, education, and so on. The book includes ten chapters, which present various recently developed recommendation services. This research book is directed to professors...

  6. Reachable Sets for Multiple Asteroid Sample Return Missions

    Science.gov (United States)

    2005-12-01

    Vtdot Massdot Sc al ed U ni ts Minimum Derivative Values Maximum Derivative Values Figure 15 Actual Range of State Derivates When these plots are...0.0563 -0.0016 Vtdot -0.0065 -0.0579 0.0119 0.0070 Massdot -0.0148 -0.0148 -0.0075 -0.0075 Control low bound low guess upper guess upper

  7. Synthesis of railway-signaling plans using reachability games

    DEFF Research Database (Denmark)

    Kasting, Patrick Frederik Soelmark; Hansen, Michael Reichhardt; Vester, Steen

    2016-01-01

    (the control system) controls signals and points and the universal player (the antagonistic environment) controls movement of trains. A winning strategy for the existential player provides a signaling plan that will safely guide trains through the network. The concepts from the railway network model......In this work, we show the feasibility of using functional programming (more specifically F#) in connection with gamebased methods for synthesis of correct-by-construction controllers (also called signaling plans) for railway networks. This is a massively resource-demanding application. A model...

  8. Reachability analysis to design zero-wait entry guidance

    NARCIS (Netherlands)

    Gonzalez-Puerta, Alejandro; Mooij, E.; Valles, Celia Yabar

    2018-01-01

    This paper presents a novel reentry guidance architecture that aims to improve cur- rent mission safety by enabling zero-wait orbital aborts. To do so, an on-board trajectory planner based on Adaptive Multivariate Pseudospectral Interpolation (AMPI) is devel- oped. This planner generates

  9. Module-theoretic properties of reachability modules for SRIQ

    CSIR Research Space (South Africa)

    Nortje, R

    2013-07-01

    Full Text Available ]. Definition 1. (Module for the arbitrary DL L) Let L be an arbitrary de- scription language, O an L ontology, and σ a statement formulated in L. Then, 2 O′ ⊆ O is a module for σ in O(a σ-module in O) whenever: O |= σ if and only if O′ |= σ. Definition 1... > 1, a SRIQ TBox T is in normal form if every axiom α ∈ T is in one of the following forms: α1: B1 u . . . uBn v C1 unionsq . . . unionsq Cm α2: D v C1 unionsq . . . unionsq Cm α3: B1 u . . . uBn v D α4: R1 ◦ . . . ◦Rn v Rn+1 α5: R1 v R2 α6: D1 v D2 α7...

  10. Controlling service delivery in service triads

    NARCIS (Netherlands)

    Iwaarden, van J.; Valk, van der W.; Aalders, L.; Virolainen, V.-M.

    2010-01-01

    Organizations are increasingly sourcing services that are directly delivered to their (end) customers by external providers. Buying organization, supplier and (end) customer operate in a triadic service relationship. In these triads, the buying organization lacks direct control over service delivery

  11. Susceptibility to rifaximin and other antimicrobial agents of bacteria isolated from acute gastrointestinal infections in Mexico

    Directory of Open Access Journals (Sweden)

    O. Novoa-Farías

    2016-01-01

    Conclusions: Resistance of enteropathogenic bacteria to various antibiotics used in gastrointestinal infections is high. Rifaximin was active against 99-100% of these enteropathogens at reachable concentrations in the intestine with the recommended dose.

  12. Internal Audit Service | Internal Audit Service

    Science.gov (United States)

    their internal auditing function in the areas of professional excellence, quality of service and Students and teachers Media Internal Audit Service Navbar Toggle Home About the Staff Risk Assessment and Planning Internal Audit Process Search for Search Home The mission of the Fermilab Internal Audit Service

  13. Service Modularity

    DEFF Research Database (Denmark)

    Avlonitis, Viktor; Hsuan, Juliana

    2015-01-01

    The purpose of this research is to investigate the studies on service modularity with a goal of informing service science and advancing contemporary service systems research. Modularity, a general systems property, can add theoretical underpinnings to the conceptual development of service science...... in general and service systems in particular. Our research is guided by the following question: how can modularity theory inform service system design? We present a review of the modularity literature and associated concepts. We then introduce the contemporary service science and service system discourse...

  14. Behavior Therapy

    Science.gov (United States)

    ... reachable goals . Aim for slow progress rather than instant results. Be sure that your child understands that ... both of you are calm. Develop a good communication system with your child's teacher so that you ...

  15. Modeling, Analysis, Simulation, and Synthesis of Biomolecular Networks

    National Research Council Canada - National Science Library

    Ruben, Harvey; Kumar, Vijay; Sokolsky, Oleg

    2006-01-01

    ...) a first example of reachability analysis applied to a biomolecular system (lactose induction), 4) a model of tetracycline resistance that discriminates between two possible mechanisms for tetracycline diffusion through the cell membrane, and 5...

  16. The dilemma of service productivity and service innovation : An empirical exploration in financial services

    NARCIS (Netherlands)

    Aspara, Jaakko; Klein, Jan; Luo, Xueming; Tikkanen, Henrikki

    2017-01-01

    We conduct a systematic exploratory investigation of the effects of firms’ existing service productivity on the success of their new service innovations. Although previous research extensively addresses service productivity and service innovation, respectively, this is the first empirical study that

  17. Triple Play Service and IPTV Services Offered within it

    Directory of Open Access Journals (Sweden)

    Dagmar Pajdusakova

    2008-01-01

    Full Text Available This paper deals with Triple Play multimedia service and figures its architecture. Triple Play offers voice, video and data services together in one customer connection. There is offered IPTV (Internet Protocol Television service within this service, where we can include also Video on Demand service and other different additional services. In the paper is described classification of Video on Demand services.

  18. Dual pathways to prospective remembering

    Science.gov (United States)

    McDaniel, Mark A.; Umanath, Sharda; Einstein, Gilles O.; Waldum, Emily R.

    2015-01-01

    According to the multiprocess framework (McDaniel and Einstein, 2000), the cognitive system can support prospective memory (PM) retrieval through two general pathways. One pathway depends on top–down attentional control processes that maintain activation of the intention and/or monitor the environment for the triggering or target cues that indicate that the intention should be executed. A second pathway depends on (bottom–up) spontaneous retrieval processes, processes that are often triggered by a PM target cue; critically, spontaneous retrieval is assumed not to require monitoring or active maintenance of the intention. Given demand characteristics associated with experimental settings, however, participants are often inclined to monitor, thereby potentially masking discovery of bottom–up spontaneous retrieval processes. In this article, we discuss parameters of laboratory PM paradigms to discourage monitoring and review recent behavioral evidence from such paradigms that implicate spontaneous retrieval in PM. We then re-examine the neuro-imaging evidence from the lens of the multiprocess framework and suggest some critical modifications to existing neuro-cognitive interpretations of the neuro-imaging results. These modifications illuminate possible directions and refinements for further neuro-imaging investigations of PM. PMID:26236213

  19. Dual Pathways to Prospective Remembering

    Directory of Open Access Journals (Sweden)

    Mark A Mcdaniel

    2015-07-01

    Full Text Available According to the multiprocess framework (McDaniel & Einstein, 2000, the cognitive system can support prospective memory (PM retrieval through two general pathways. One pathway depends on top-down attentional control processes that maintain activation of the intention and/or monitor the environment for the triggering or target cues that indicate that the intention should be executed. A second pathway depends on (bottom-up spontaneous retrieval processes, processes that are often triggered by a PM target cue; critically spontaneous retrieval is assumed to not require monitoring or active maintenance of the intention. Given demand characteristics associated with experimental settings, however, participants are often inclined to monitor, thereby potentially masking discovery of bottom-up spontaneous retrieval processes. In this article, we discuss parameters of laboratory PM paradigms to discourage monitoring and review recent behavioral evidence from such paradigms that implicate spontaneous retrieval in PM. We then re-examine the neuro-imaging evidence from the lens of the multiprocess framework and suggest some critical modifications to existing neuro-cognitive interpretations of the neuro-imaging results. These modifications illuminate possible directions and refinements for further neuro-imaging investigations of PM.

  20. INCREASING THE QUALITY OF SERVICE : Case Service Desk

    OpenAIRE

    Åhlgren, Niklas

    2014-01-01

    The topic of this thesis was to study how service quality is formed and to use this outcome to improve the quality of an IT service desk. The goal was to bring value to the customers and to the company by orienting the service desk personnel towards better service quality. By giving the service desk personnel a better understanding of the business process, customer relationship management and service quality the employees would gain more insight in to their own importance when it comes to imp...

  1. Pan-London tuberculosis services: a service evaluation

    Directory of Open Access Journals (Sweden)

    Belling Ruth

    2012-07-01

    Full Text Available Abstract Background London has the largest proportion of tuberculosis (TB cases of any western European capital, with almost half of new cases drug-resistant. Prevalence varies considerably between and within boroughs with research suggesting inadequate control of TB transmission in London. Economic pressures may exacerbate the already considerable challenges for service organisation and delivery within this context. This paper presents selected findings from an evaluation of London’s TB services’ organisation, delivery, professional workforce and skill mix, intended to support development of a strategic framework for a pan-London TB service. These may also interest health service professionals and managers in TB services in the UK, other European cities and countries and in services currently delivered by multiple providers operating independently. Methods Objectives were: 1 To establish how London’s TB services are structured and delivered in relation to leadership, management, organisation and delivery, coordination, staffing and support; 2 To identify tools/models for calculating skill mix as a basis for identifying skill mix requirements in delivering TB services across London; 3 To inform a strategic framework for the delivery of a pan-London TB service, which may be applicable to other European cities. The multi-method service audit evaluation comprised documentary analysis, semi-structured interviews with TB service users (n = 10, lead TB health professionals and managers (n = 13 representing London’s five sectors and focus groups with TB nurses (n = 8 and non-London network professionals (n = 2. Results Findings showed TB services to be mainly hospital-based, with fewer community-based services. Documentary analysis and professionals’ interviews suggested difficulties with early access to services, low suspicion index amongst some GPs and restricted referral routes. Interviews indicated lack of managed

  2. Service engineering for prospective vehicle service processes

    OpenAIRE

    Nagel, Alexander; Steinhilper, Rolf; Freiberger, Stefan; Thäter, Stefan

    2013-01-01

    Garages are - concerning the vehicle service - faced with growing complexity in automotive mechatronics and on-board bus communication technology. Because of the necessity of profound technical knowledge and smart as well as cost efficient diagnostic tools for garages, Bayreuth University and Fraunhofer IPA pick up the challenge and develop innovative service-processes for future requirements by the project "Kfz-Service Engineering 2020". In order to improve established service-processes and ...

  3. A Web service substitution method based on service cluster nets

    Science.gov (United States)

    Du, YuYue; Gai, JunJing; Zhou, MengChu

    2017-11-01

    Service substitution is an important research topic in the fields of Web services and service-oriented computing. This work presents a novel method to analyse and substitute Web services. A new concept, called a Service Cluster Net Unit, is proposed based on Web service clusters. A service cluster is converted into a Service Cluster Net Unit. Then it is used to analyse whether the services in the cluster can satisfy some service requests. Meanwhile, the substitution methods of an atomic service and a composite service are proposed. The correctness of the proposed method is proved, and the effectiveness is shown and compared with the state-of-the-art method via an experiment. It can be readily applied to e-commerce service substitution to meet the business automation needs.

  4. The three-dimensional, discrete ordinates neutral particle transport code TORT: An overview

    International Nuclear Information System (INIS)

    Azmy, Y.Y.

    1996-01-01

    The centerpiece of the Discrete Ordinates Oak Ridge System (DOORS), the three-dimensional neutral particle transport code TORT is reviewed. Its most prominent features pertaining to large applications, such as adjustable problem parameters, memory management, and coarse mesh methods, are described. Advanced, state-of-the-art capabilities including acceleration and multiprocessing are summarized here. Future enhancement of existing graphics and visualization tools is briefly presented

  5. Implementation of a Loosely-Coupled Lockstep Approach in the Xilinx Zynq-7000 All Programmable SoC for High Consequence Applications

    Science.gov (United States)

    2017-03-01

    Programmable SoC™ is made possible through the use of ARM® Cortex ™-A9 MPCore™ Asymmetric Multiprocessing; processor configurations utilizing the...core ARM Cortex -A9 MPCore based Processing System (PS) and Programmable Logic (PL) portions. These features allow for two processors to run...SoC™ precludes a tightly-coupled lockstep approach between the two processors . Therefore, a loosely-coupled lockstep approach implemented by a

  6. Development and Flight Results of a PC104/QNX-Based On-Board Computer and Software for the YES2 Tether Experiment

    Science.gov (United States)

    Spiliotopoulos, I.; Mirmont, M.; Kruijff, M.

    2008-08-01

    This paper highlights the flight preparation and mission performance of a PC104-based On-Board Computer for ESA's second Young Engineer's Satellite (YES2), with additional attention to the flight software design and experience of QNX as multi-process real-time operating system. This combination of Commercial-Of-The-Shelf (COTS) technologies is an accessible option for small satellites with high computational demands.

  7. Optimal Node Placement in Underwater Wireless Sensor Networks

    KAUST Repository

    Felamban, M.; Shihada, Basem; Jamshaid, K.

    2013-01-01

    Wireless Sensor Networks (WSN) are expected to play a vital role in the exploration and monitoring of underwater areas which are not easily reachable by humans. However, underwater communication via acoustic waves is subject to several performance

  8. ServiceBlueprinting as a service management tool in radiology

    International Nuclear Information System (INIS)

    Maurer, Martin H.; Hamm, Bernd; Teichgraeber, Ulf

    2011-01-01

    Purpose: To describe the ServiceBlueprint model as a suitable method of service management in clinical medicine using the example of the routine clinical setting of a radiological department. Materials and methods: ServiceBlueprinting is a concept for the analysis, visualization, and optimization of service processes. To investigate whether the model will also provide a suitable representation of medical services, particularly the provision of radiological services, ServiceBlueprints were created for the modality computed tomography (CT). To this end, an independent observer analyzed the workflow of 40 consecutive CT examinations. Results: The ServiceBlueprint provided an analysis of the status quo of the service processes in CT imaging modality. Weak points in the processes thus became immediately apparent. The model could also be used for personnel management in that it helped to define the roles of staff members from different categories in the value-added process. It served as a basis for the implementation of quality management systems according to Total Quality Management (TQM) and DIN-EN-ISO-9001:2000. Conclusions: The ServiceBlueprint model is a service management concept that is also suitable to visualize medical service processes in routine clinical settings like in a radiology department and has a multifarious potential in process optimization, implementation of quality management systems, and human resources management.

  9. Web Services in 3G Service Platforms

    NARCIS (Netherlands)

    Lagerberg, Ko; Plas, Dirk-Jaap; Wegdam, M.

    2002-01-01

    In third-generation (3G) networks, third-party service developers will have access to the mobile network resources using open network interfaces, such as the 3rd Generation Partnership Project's (3GPP's) Open Service Access (OSA). The service platforms that offer these interfaces provide

  10. Routing Service Quality—Local Driver Behavior Versus Routing Services

    DEFF Research Database (Denmark)

    Ceikute, Vaida; Jensen, Christian S.

    2013-01-01

    of the quality of one kind of location-based service, namely routing services. Specifically, the paper presents a framework that enables the comparison of the routes provided by routing services with the actual driving behaviors of local drivers. Comparisons include route length, travel time, and also route...... popularity, which are enabled by common driving behaviors found in available trajectory data. The ability to evaluate the quality of routing services enables service providers to improve the quality of their services and enables users to identify the services that best serve their needs. The paper covers......Mobile location-based services is a very successful class of services that are being used frequently by users with GPS-enabled mobile devices such as smartphones. This paper presents a study of how to exploit GPS trajectory data, which is available in increasing volumes, for the assessment...

  11. Service models and realization of differentiated services networks

    Science.gov (United States)

    Elizondo, Antonio J.; Garcia Osma, Maria L.; Einsiedler, Hans J.; Roth, Rudolf; Smirnov, Michael I.; Bartoli, Maurizio; Castelli, Paolo; Varga, Balazs; Krampell, Magnus

    2001-07-01

    Internet Service Providers need to offer Quality of Service (QoS) to fulfil the requirements of applications of their customers. Moreover, in a competitive market environment costs must be low. The selected service model must be effective and low in complexity, but it should still provide high quality and service differentiation, that the current Internet is not yet capable to support. The Differentiated Services (DiffServ) Architecture has been proposed for enabling a range of different Classes of Service (CoS). In the EURESCOM project P1006 several European service providers co-operated to examine various aspects involved in the introduction of service differentiation using the DiffServ approach. The project explored a set of service models for Expedited Forwarding (EF) and Assured Forwarding (AF) and identified requirements for network nodes. Besides, we addressed also measurement issues, charging and accounting issues. Special attention has been devoted to requirements of elastic traffic that adapts its sending rate to congestion state and available bandwidth. QoS mechanisms must prove Transmission Control Protocol (TCP) friendliness. TCP performance degrades under multiple losses. Since RED based queue management may still cause multiple discards, a modified marking scheme called Capped Leaky Bucket is proposed to improve the performance of elastic applications.

  12. Energy Optimal Path Planning: Integrating Coastal Ocean Modelling with Optimal Control

    Science.gov (United States)

    Subramani, D. N.; Haley, P. J., Jr.; Lermusiaux, P. F. J.

    2016-02-01

    A stochastic optimization methodology is formulated for computing energy-optimal paths from among time-optimal paths of autonomous vehicles navigating in a dynamic flow field. To set up the energy optimization, the relative vehicle speed and headings are considered to be stochastic, and new stochastic Dynamically Orthogonal (DO) level-set equations that govern their stochastic time-optimal reachability fronts are derived. Their solution provides the distribution of time-optimal reachability fronts and corresponding distribution of time-optimal paths. An optimization is then performed on the vehicle's energy-time joint distribution to select the energy-optimal paths for each arrival time, among all stochastic time-optimal paths for that arrival time. The accuracy and efficiency of the DO level-set equations for solving the governing stochastic level-set reachability fronts are quantitatively assessed, including comparisons with independent semi-analytical solutions. Energy-optimal missions are studied in wind-driven barotropic quasi-geostrophic double-gyre circulations, and in realistic data-assimilative re-analyses of multiscale coastal ocean flows. The latter re-analyses are obtained from multi-resolution 2-way nested primitive-equation simulations of tidal-to-mesoscale dynamics in the Middle Atlantic Bight and Shelbreak Front region. The effects of tidal currents, strong wind events, coastal jets, and shelfbreak fronts on the energy-optimal paths are illustrated and quantified. Results showcase the opportunities for longer-duration missions that intelligently utilize the ocean environment to save energy, rigorously integrating ocean forecasting with optimal control of autonomous vehicles.

  13. 31 CFR 545.406 - Exportation of services; performance of service contracts; legal services.

    Science.gov (United States)

    2010-07-01

    ... of service contracts; legal services. 545.406 Section 545.406 Money and Finance: Treasury Regulations... TALIBAN (AFGHANISTAN) SANCTIONS REGULATIONS Interpretations § 545.406 Exportation of services; performance... received in the territory of Afghanistan controlled by the Taliban. Note to § 545.406. See § 545.513 with...

  14. Research Article Special Issue

    African Journals Online (AJOL)

    2016-05-15

    May 15, 2016 ... reachable graph under an initial marking can be gotten. .... Following this component relation priority rules, one could get the way to calculate ... on innovative computing information and control(ICICIC'08)978-7695-3161-8/08.

  15. Genetic based optimization for multicast routing algorithm for MANET

    Indian Academy of Sciences (India)

    three main principles of natural evolution: reproduction, natural selection and species .... For example, figure 3 shows a six-node network with node reachability shown by ... sion range of each node is 220 m using an Omni directional antenna.

  16. Service management at CERN with Service-Now

    International Nuclear Information System (INIS)

    Toteva, Z; Fedorko, I; Hefferman, J; Lemaitre, S; Mira, O Pera; Alonso, R Alvarez; Cheimariou, M-E; Clavo, D Martin; Granda, E Alvarez; Pedreira, P Martinez

    2012-01-01

    The Information Technology (IT) and the General Services (GS) departments at CERN have decided to combine their extensive experience in support for IT and non-IT services towards a common goal – to bring the services closer to the end user based on Information Technology Infrastructure Library (ITIL) best practice. The collaborative efforts have so far produced definitions for the incident and the request fulfilment processes which are based on a unique two-dimensional service catalogue that combines both the user and the support team views of all services. After an extensive evaluation of the available industrial solutions, Service-now was selected as the tool to implement the CERN Service-Management processes. The initial release of the tool provided an attractive web portal for the users and successfully implemented two basic ITIL processes; the incident management and the request fulfilment processes. It also integrated with the CERN personnel databases and the LHC GRID ticketing system. Subsequent releases continued to integrate with other third-party tools like the facility management systems of CERN as well as to implement new processes such as change management. Independently from those new development activities it was decided to simplify the request fulfilment process in order to achieve easier acceptance by the CERN user community. We believe that due to the high modularity of the Service-now tool, the parallel design of ITIL processes e.g., event management and non-ITIL processes, e.g., computer centre hardware management, will be easily achieved. This presentation will describe the experience that we have acquired and the techniques that were followed to achieve the CERN customization of the Service-Now tool.

  17. Optimal Guaranteed Service Time and Service Level Decision with Time and Service Level Sensitive Demand

    Directory of Open Access Journals (Sweden)

    Sangjun Park

    2014-01-01

    Full Text Available We consider a two-stage supply chain with one supplier and one retailer. The retailer sells a product to customer and the supplier provides a product in a make-to-order mode. In this case, the supplier’s decisions on service time and service level and the retailer’s decision on retail price have effects on customer demand. We develop optimization models to determine the optimal retail price, the optimal guaranteed service time, the optimal service level, and the optimal capacity to maximize the expected profit of the whole supply chain. The results of numerical experiments show that it is more profitable to determine the optimal price, the optimal guaranteed service time, and the optimal service level simultaneously and the proposed model is more profitable in service level sensitive market.

  18. Finite Countermodel Based Verification for Program Transformation (A Case Study

    Directory of Open Access Journals (Sweden)

    Alexei P. Lisitsa

    2015-12-01

    Full Text Available Both automatic program verification and program transformation are based on program analysis. In the past decade a number of approaches using various automatic general-purpose program transformation techniques (partial deduction, specialization, supercompilation for verification of unreachability properties of computing systems were introduced and demonstrated. On the other hand, the semantics based unfold-fold program transformation methods pose themselves diverse kinds of reachability tasks and try to solve them, aiming at improving the semantics tree of the program being transformed. That means some general-purpose verification methods may be used for strengthening program transformation techniques. This paper considers the question how finite countermodels for safety verification method might be used in Turchin's supercompilation method. We extract a number of supercompilation sub-algorithms trying to solve reachability problems and demonstrate use of an external countermodel finder for solving some of the problems.

  19. Forensic mental health services: Current service provision and ...

    African Journals Online (AJOL)

    Forensic mental health services: Current service provision and planning for a prison mental health service in the Eastern Cape. Kiran Sukeri, Orlando A. Betancourt, Robin Emsley, Mohammed Nagdee, Helmut Erlacher ...

  20. SERVICE PROVISIONING IN MANETS USING SERVICE PROVIDER’S METRICS

    Directory of Open Access Journals (Sweden)

    K. Ponmozhi

    2012-09-01

    Full Text Available Service discovery technologies are exploited to enable services to advertise their existence in a dynamic way and can be discovered, configured and used by other devices with minimum of manual efforts. Automatic service discovery plays an important role in future network scenarios. Service discovery in distributed environment is difficult that too if the availability information of the services cannot be in a centralized node. The complexity is increased even further in the case of MANETs in which there will not be central intelligence also, the nodes involved may be on the move. The mobility issue leads to the situation of uncertainty about the service availability of the service provider. In this paper we propose a decentralized discovery mechanism. The basic idea is, distributing service information along with the availability metrics to the nodes. The metrics will give us the information to evaluate the goodness of the service provider. Every node will form multi-layered overlays of service providers sorted based on the metrics. When we send a query, each node will identify the service provider from the overlay with the good metric among the available providers (i.e. the one in the first position in the overlay. We define the message structures and methods needed for this proposal. The simulation result shows that in the high mobile environment too we could have a better convergence. We believe that the architecture presented here is a necessary component of any service provision framework.

  1. Import/Export Service of Radioactive Material and Radioactive Sources Service

    CERN Multimedia

    2004-01-01

    Please note that the Import/Export Service of radioactive material (http://cern.ch/service-rp-shipping/ - e-mail : service-rp-shipping@cern.ch) and the Radioactive Sources Service (http://cern.ch/service-radioactive-sources - e-mail : service-radioactive-sources@cern.ch) at bldg. 24/E-024 will be closed on FRIDAY 10 SEPTEMBER 2004. Tel. 73171

  2. A user interface on networked workstations for MFTF-B plasma diagnostic instruments

    International Nuclear Information System (INIS)

    Balch, T.R.; Renbarger, V.L.

    1986-01-01

    A network of Sun-2/170 workstations is used to provide an interface to the MFTF-B Plasma Diagnostics System at Lawrence Livermore National Laboratory. The Plasma Diagnostics System (PDS) is responsible for control of MFTF-B plasma diagnostic instrumentation. An EtherNet Local Area Network links the workstations to a central multiprocessing system which furnishes data processing, data storage and control services for PDS. These workstations permit a physicist to command data acquisition, data processing, instrument control, and display of results. The interface is implemented as a metaphorical desktop, which helps the operator form a mental model of how the system works. As on a real desktop, functions are provided by sheets of paper (windows on a CRT screen) called worksheets. The worksheets may be invoked by pop-up menus and may be manipulated with a mouse. These worksheets are actually tasks that communicate with other tasks running in the central computer system. By making entries in the appropriate worksheet, a physicist may specify data acquisition or processing, control a diagnostic, or view a result

  3. User interface on networked workstations for MFTF plasma diagnostic instruments

    International Nuclear Information System (INIS)

    Renbarger, V.L.; Balch, T.R.

    1985-01-01

    A network of Sun-2/170 workstations is used to provide an interface to the MFTF-B Plasma Diagnostics System at Lawrence Livermore National Laboratory. The Plasma Diagnostics System (PDS) is responsible for control of MFTF-B plasma diagnostic instrumentation. An EtherNet Local Area Network links the workstations to a central multiprocessing system which furnishes data processing, data storage and control services for PDS. These workstations permit a physicist to command data acquisition, data processing, instrument control, and display of results. The interface is implemented as a metaphorical desktop, which helps the operator form a mental model of how the system works. As on a real desktop, functions are provided by sheets of paper (windows on a CRT screen) called worksheets. The worksheets may be invoked by pop-up menus and may be manipulated with a mouse. These worksheets are actually tasks that communicate with other tasks running in the central computer system. By making entries in the appropriate worksheet, a physicist may specify data acquisition or processing, control a diagnostic, or view a result

  4. Evaluation of service quality of hospital outpatient department services.

    Science.gov (United States)

    Chakravarty, Abhijit

    2011-07-01

    It has become essential for hospital managers to understand and measure consumer perspectives and service quality gaps, so that any perceived gap in delivery of service is identified and suitably addressed. A study was conducted at a peripheral service hospital to ascertain any service gap between consumer expectations and perceptions in respect of the hospital outpatient department (OPD) services. A cross-sectional study was conducted using SERVQUAL as the survey instrument, the instrument being validated for use in the hospital environment. Consumer ratings across 22 items of the survey instrument were collected in paired expectation and perception scores and then service quality gaps were identified and statistically analysed. Service quality gaps were identified to exist across all the five dimensions of the survey instrument, with statistically significant gaps across the dimensions of 'tangibles' and 'responsiveness.' The quality gaps were further validated by a total unweighted SERVQUAL score of (-) 1.63. The study concludes that significant service quality gaps existed in the delivery of the hospital OPD services, which need to be addressed by focused improvement efforts by the hospital management.

  5. Family-centred service coordination in childhood health and disability services: the search for meaningful service outcome measures.

    Science.gov (United States)

    Trute, B; Hiebert-Murphy, D; Wright, A

    2008-05-01

    Potential service outcome measures were tested for their utility in the assessment of the quality of 'family centred' service coordination in the provincial network of children's disability services in Manitoba, Canada. This study is based on in-home survey data provided by 103 mothers at 6 and 18 months following assignment of a 'dedicated' service coordinator. Service outcome indicators included measures of parent self-esteem, parenting stress, family functioning and the need for family support resources. Hierarchical regression analyses showed no relationship between level of quality of family-centred service coordination and standardized psychosocial measures of parent and family functioning. However, family centredness of service coordination was found to predict significant reduction in level of family need for psychosocial support resources after 18 months of contact with a service coordinator. Outcome measures that are focused on specific and tangible results of service coordination appear to be of higher utility in service quality assessment than are more global, standardized measures of parent and family functioning.

  6. Service co-innovation

    DEFF Research Database (Denmark)

    Henten, Anders; Sundbo, Jon; Sundbo, Donna

    of studies of the degree of satisfaction of the users with the services in the service encounters and studies that examine service innovation processes. The paper is based on research conducted in 21 service delivery situations in as many service companies. Drivers of and barriers to encounterbased service......This paper examines the factors affecting the innovativeness of service encounters. The assumption is that a considerable share of innovations in service industries is initiated in the service encounters. The theoretical foundation of this paper builds on a combination of research tradition...

  7. Trusted Service Scheduling and Optimization Strategy Design of Service Recommendation

    Directory of Open Access Journals (Sweden)

    Xiaona Xia

    2017-01-01

    Full Text Available More and more Web services raise the demands of personalized service recommendation; there exist some recommendation technologies, which improve the qualities of service recommendation by using service ranking and collaborative filtering. However, privacy and security are also important issues in service scheduling process; social relationships have been the key factors of interpersonal communication; service selection based on user preferences has become an inevitable trend. Starting from user demand preferences, this paper analyzes social topology and service demand information and obtains trusted social relationships; then we construct the fusion model of service historical preferences and potential ones; according to social service recommendation demands, TSRSR algorithm has completed designing. Through experiments, TSRSR algorithm is much better than the others, which can effectively improve potential preferences’ learning. Furthermore, the research results of this paper have more significance to study the security and privacy of service recommendation.

  8. Efficient Approximation of Optimal Control for Markov Games

    DEFF Research Database (Denmark)

    Fearnley, John; Rabe, Markus; Schewe, Sven

    2011-01-01

    We study the time-bounded reachability problem for continuous-time Markov decision processes (CTMDPs) and games (CTMGs). Existing techniques for this problem use discretisation techniques to break time into discrete intervals, and optimal control is approximated for each interval separately...

  9. A Comparison of Modular Verification Techniques

    DEFF Research Database (Denmark)

    Andersen, Henrik Reif; Staunstrup, Jørgen; Maretti, Niels

    1997-01-01

    This paper presents and compares three techniques for mechanized verification of state oriented design descriptions. One is a traditional forwardgeneration of a fixed point characterizing the reachable states. The two others can utilize a modular structure provided by the designer. Onerequires...

  10. The service blueprint as a tool for designing innovative pharmaceutical services.

    Science.gov (United States)

    Holdford, D A; Kennedy, D T

    1999-01-01

    To describe service blueprints, discuss their need and design, and provide examples of their use in advancing pharmaceutical care. Service blueprints are pictures or maps of service processes that permit the people involved in designing, providing, managing, and using the service to better understand them and deal with them objectively. A service blueprint simultaneously depicts the service process and the roles of consumers, service providers, and supporting services. Service blueprints can be useful in pharmacy because many of the obstacles to pharmaceutical care are a result of insufficient planning by service designers and/or poor communication between those designing services and those implementing them. One consequence of this poor design and communication is that many consumers and third party payers are uninformed about pharmacist roles. Service blueprints can be used by pharmacists to promote the value of pharmaceutical care to consumers and other decision makers. They can also assist in designing better pharmaceutical services. Blueprints are designed by identifying and mapping a process from the consumer's point of view, mapping employee actions and support activities, and adding visible evidence of service at each consumer action step. Key components of service blueprints are consumer actions, "onstage" and "backstage" employee actions, and support processes. Blueprints can help pharmacy managers identify and correct problems with the service process, provide pharmacy employees an opportunity to offer feedback in the planning stages of services, and demonstrate the value of pharmaceutical services to consumers. Service blueprints can be a valuable tool for designing, implementing, and evaluating pharmacy services.

  11. Developing collective customer knowledge and service climate: The interaction between service-oriented high-performance work systems and service leadership.

    Science.gov (United States)

    Jiang, Kaifeng; Chuang, Chih-Hsun; Chiao, Yu-Ching

    2015-07-01

    This study theorized and examined the influence of the interaction between Service-Oriented high-performance work systems (HPWSs) and service leadership on collective customer knowledge and service climate. Using a sample of 569 employees and 142 managers in footwear retail stores, we found that Service-Oriented HPWSs and service leadership reduced the influences of one another on collective customer knowledge and service climate, such that the positive influence of service leadership on collective customer knowledge and service climate was stronger when Service-Oriented HPWSs were lower than when they were higher or the positive influence of Service-Oriented HPWSs on collective customer knowledge and service climate was stronger when service leadership was lower than when it was higher. We further proposed and found that collective customer knowledge and service climate were positively related to objective financial outcomes through service performance. Implications for the literature and managerial practices are discussed. (c) 2015 APA, all rights reserved).

  12. Bridging the gap between legacy services and Web Services

    DEFF Research Database (Denmark)

    Bissyandé, Tegawendé; Réveillère, Laurent; Bromberg, Yérom-David

    2010-01-01

    itself. In this paper, we introduce a generative language based approach for constructing wrappers to facilitate the migration of legacy service functionalities to Web Services. To this end, we have designed the Janus domain-specific language, which provides developers with a high-level way to describe......Web Services is an increasingly used instantiation of Service-Oriented Architectures (SOA) that relies on standard Internet protocols to produce services that are highly interoperable. Other types of services, relying on legacy application layer protocols, however, cannot be composed directly....... A promising solution is to implement wrappers to translate between the application layer protocols and the WS protocol. Doing so manually, however, requires a high level of expertise, in the relevant application layer protocols, in low-level network and system programming, and in the Web Service paradigm...

  13. Dynamic selection mechanism for quality of service aware web services

    Science.gov (United States)

    D'Mello, Demian Antony; Ananthanarayana, V. S.

    2010-02-01

    A web service is an interface of the software component that can be accessed by standard Internet protocols. The web service technology enables an application to application communication and interoperability. The increasing number of web service providers throughout the globe have produced numerous web services providing the same or similar functionality. This necessitates the use of tools and techniques to search the suitable services available over the Web. UDDI (universal description, discovery and integration) is the first initiative to find the suitable web services based on the requester's functional demands. However, the requester's requirements may also include non-functional aspects like quality of service (QoS). In this paper, the authors define a QoS model for QoS aware and business driven web service publishing and selection. The authors propose a QoS requirement format for the requesters, to specify their complex demands on QoS for the web service selection. The authors define a tree structure called quality constraint tree (QCT) to represent the requester's variety of requirements on QoS properties having varied preferences. The paper proposes a QoS broker based architecture for web service selection, which facilitates the requesters to specify their QoS requirements to select qualitatively optimal web service. A web service selection algorithm is presented, which ranks the functionally similar web services based on the degree of satisfaction of the requester's QoS requirements and preferences. The paper defines web service provider qualities to distinguish qualitatively competitive web services. The paper also presents the modelling and selection mechanism for the requester's alternative constraints defined on the QoS. The authors implement the QoS broker based system to prove the correctness of the proposed web service selection mechanism.

  14. SOFTWARE ARCHITECTURE DESIGN OF GIS WEB SERVICE AGGREGATION BASED ON SERVICE GROUP

    Directory of Open Access Journals (Sweden)

    J.-C. Liu

    2012-08-01

    Full Text Available Based on the analysis of research status of domestic and international GIS web service aggregation and development tendency of public platform of GIS web service, the paper designed software architecture of GIS web service aggregation based on GIS web service group. Firstly, using heterogeneous GIS services model, the software architecture converted a variety of heterogeneous services to a unified interface of GIS services, and divided different types of GIS services into different service groups referring to description of GIS services. Secondly, a service aggregation process model was designed. This model completed the task of specific service aggregation instance, by automatically selecting member GIS Web services in the same service group. Dynamic capabilities and automatic adaptation of GIS Web services aggregation process were achieved. Thirdly, this paper designed a service evaluation model of GIS web service aggregation based on service group from three aspects, i.e. GIS Web Service itself, networking conditions and service consumer. This model implemented effective quality evaluation and performance monitoring of GIS web service aggregation. It could be used to guide the execution, monitor and service selection of aggregation process. Therefore, robustness of aggregated GIS web service was improved. Finally, the software architecture has been widely used in public platform of GIS web service and a number of geo-spatial framework constructions for digital city in Sichuan Province, and aggregated various GIS web services such as World Map(National Public Platform of Geo-spatial Service, ArcGIS, SuperMap, MapGIS, NewMap etc. Applications of items showed that this software architecture was practicability.

  15. Characteristics of multiprocessing MCNP5 on small personal computer clusters

    International Nuclear Information System (INIS)

    Robinson, S M; Mc Conn, R J Jr; Pagh, R T; Schweppe, J E; Siciliano, E R

    2006-01-01

    The feasibility and efficiency of performing MCNP5 calculations with a small, heterogeneous computing cluster built from Microsoft ( R) Windows TM personal computers (PC) are explored. The performance increases that may be expected with such clusters are estimated for cases that typify general radiation-shielding calculations. Our results show that the speed increase from additional slave PCs is nearly linear up to 10 processors. Guidance is given as to the specific advantages of changing various parameters present in the system. Implementing load balancing, and reducing the overhead from the MCNP rendezvous mechanism add to heterogeneous cluster efficiency. Hyper-threading technology and matching the total number of slave processes to the total number of logical processors also yield modest speed increases in the range below 7 processors. Because of the ease of acquisition of heterogeneous desktop computers, and the peak in efficiency at the level of a few physical processors, a strong case is made for the use of small clusters as a tool for producing MCNP5 calculations rapidly, and detailed instructions for constructing such clusters are provided

  16. FAST - A multiprocessed environment for visualization of computational fluid dynamics

    International Nuclear Information System (INIS)

    Bancroft, G.V.; Merritt, F.J.; Plessel, T.C.; Kelaita, P.G.; Mccabe, R.K.

    1991-01-01

    The paper presents the Flow Analysis Software Toolset (FAST) to be used for fluid-mechanics analysis. The design criteria for FAST including the minimization of the data path in the computational fluid-dynamics (CFD) process, consistent user interface, extensible software architecture, modularization, and the isolation of three-dimensional tasks from the application programmer are outlined. Each separate process communicates through the FAST Hub, while other modules such as FAST Central, NAS file input, CFD calculator, surface extractor and renderer, titler, tracer, and isolev might work together to generate the scene. An interprocess communication package making it possible for FAST to operate as a modular environment where resources could be shared among different machines as well as a single host is discussed. 20 refs

  17. Multi-processing CTH: Porting legacy FORTRAN code to MP hardware

    Energy Technology Data Exchange (ETDEWEB)

    Bell, R.L.; Elrick, M.G.; Hertel, E.S. Jr.

    1996-12-31

    CTH is a family of codes developed at Sandia National Laboratories for use in modeling complex multi-dimensional, multi-material problems that are characterized by large deformations and/or strong shocks. A two-step, second-order accurate Eulerian solution algorithm is used to solve the mass, momentum, and energy conservation equations. CTH has historically been run on systems where the data are directly accessible to the cpu, such as workstations and vector supercomputers. Multiple cpus can be used if all data are accessible to all cpus. This is accomplished by placing compiler directives or subroutine calls within the source code. The CTH team has implemented this scheme for Cray shared memory machines under the Unicos operating system. This technique is effective, but difficult to port to other (similar) shared memory architectures because each vendor has a different format of directives or subroutine calls. A different model of high performance computing is one where many (> 1,000) cpus work on a portion of the entire problem and communicate by passing messages that contain boundary data. Most, if not all, codes that run effectively on parallel hardware were written with a parallel computing paradigm in mind. Modifying an existing code written for serial nodes poses a significantly different set of challenges that will be discussed. CTH, a legacy FORTRAN code, has been modified to allow for solutions on distributed memory parallel computers such as the IBM SP2, the Intel Paragon, Cray T3D, or a network of workstations. The message passing version of CTH will be discussed and example calculations will be presented along with performance data. Current timing studies indicate that CTH is 2--3 times faster than equivalent C++ code written specifically for parallel hardware. CTH on the Intel Paragon exhibits linear speed up with problems that are scaled (constant problem size per node) for the number of parallel nodes.

  18. Service use and unmet service needs in grandparents raising grandchildren.

    Science.gov (United States)

    Yancura, Loriena A

    2013-01-01

    Most in-depth studies of grandparents raising grandchildren use samples recruited from service providers, so little is known about those who do not use formal services. A sample of 200 grandparents registered with a public school district completed a survey on service use and unmet service needs. Of the 131 who did not use services, 82 reported unmet service needs, and 49 reported no needs. Those with unmet needs were younger, more likely to be Native Hawaiian, and less likely to receive public assistance. These findings indicate that some grandparents are falling through the cracks of the service provision network.

  19. Rethinking Student Services: Assessing and Improving Service Quality.

    Science.gov (United States)

    Zammuto, Raymond F.; And Others

    1996-01-01

    A study investigated the quality of services in four student enrollment services administrative sub-units (recruiting, admissions, records and registration, financial aid) at a public comprehensive university, using student and staff evaluations and program evaluations. Specific changes needed to improve service delivery are identified and…

  20. 75 FR 33740 - Indoor Tanning Services; Cosmetic Services; Excise Taxes

    Science.gov (United States)

    2010-06-15

    ... 1545-BJ40 Indoor Tanning Services; Cosmetic Services; Excise Taxes AGENCY: Internal Revenue Service.... 7805. * * * Par. 5. Section 49.0-3 is added to read as follows: Sec. 49.0-3 Introduction; cosmetic...--Cosmetic Services Sec. 49.5000B-1 Indoor tanning services. [The text of this proposed Sec. 49.5000B-1 is...

  1. Field services experiences

    International Nuclear Information System (INIS)

    Colflesh, J.A.; Kruse, P.W.; Merluzzi, R.A.

    1985-01-01

    Combustion Engineering (C-E) is a large diversified manufacturer of products and services for the energy field. At this time, C-E has supplied the nuclear steam supply systems for eleven operating nuclear power plants with two additional units currently undergoing start-up testing. The focus of C-E's commitment in the nuclear power plant services area is the Nuclear Services organization within the Nuclear Power Systems Division. The Nuclear Services organization provides services on a timely cost efficient basis; and dedicates resources to developing new products and services which are truly responsive to the needs of operating power plants world wide. In the paper, C-E's capabilities and experience in the field of nuclear services are described. Highlighted are our capabilities in the areas of transition management services, operating services and engineering services

  2. 78 FR 26406 - Product Change-Parcel Return Service Negotiated Service Agreement

    Science.gov (United States)

    2013-05-06

    ... POSTAL SERVICE Product Change--Parcel Return Service Negotiated Service Agreement AGENCY: Postal... United States Postal Service[supreg] hereby gives notice that, pursuant to 39 U.S.C. 3642 and 3632(b)(3... Postal Service to Add Parcel Return Service Contract 4 to Competitive Product List. Documents are...

  3. 78 FR 65392 - Product Change-Parcel Return Service Negotiated Service Agreement

    Science.gov (United States)

    2013-10-31

    ... POSTAL SERVICE Product Change--Parcel Return Service Negotiated Service Agreement AGENCY: Postal... INFORMATION: The United States Postal Service[supreg] hereby gives notice that, pursuant to 39 U.S.C. 3642 and... States Postal Service To Add Parcel Return Service Contract 5 to Competitive Product List. Documents are...

  4. 78 FR 12369 - Product Change-Parcel Return Service Negotiated Service Agreement

    Science.gov (United States)

    2013-02-22

    ... POSTAL SERVICE Product Change--Parcel Return Service Negotiated Service Agreement AGENCY: Postal...: The United States Postal Service[supreg] hereby gives notice that, pursuant to 39 U.S.C. 3642 and 3632... States Postal Service to Add Parcel Return Service Contract 3 to Competitive Product List. Documents are...

  5. QUALITY OF SERVICE ORIENTED WEB SERVICE SELECTION: AN EVALUATION OF TECHNIQUES

    Directory of Open Access Journals (Sweden)

    Munjiah Nur Saadah

    2014-08-01

    Full Text Available Abstract In service-oriented computing, web services are the basic foundation that aims to facilitate building of business application in a more flexible and interoperable manner for enterprise collaboration. One of the most promising advantages of web service technology is the possibility of creating added-value services by combining existing ones. A key step for composing and executing services lies in the selection of the individual service to use. Much attention has been devoted to appropriate selection of service functionalities, but also the non-functional properties of the services play a key role. A web service selection technique must take as much as possible the important influencing aspects into account to the selection process in order to minimize the selection efforts. This paper evaluates several web service selection techniques published in literature with the focus on their contributions to web service selection. The evaluation results can be used as a basis for improving web service selection techniques and then simplifying the selection tasks.

  6. Designing a New Car Rental Service Using Location-Based Services

    OpenAIRE

    Dessie, Solomon

    2015-01-01

    This thesis concentrates on improving the car rental services offered by the case company by introducing location-based services. For many years, the company has conducted a rental business in a similar manner with other car rental companies, and now it is introducing a new service system based on online interaction and location-based services. The outcome of the study is a blueprint for the case company regarding the design of a car rental service using location-based services. This stud...

  7. 76 FR 4726 - Avaya Global Services, AOS Service Delivery, Worldwide Services Group, Including Workers Whose...

    Science.gov (United States)

    2011-01-26

    ... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-74,411] Avaya Global Services, AOS Service Delivery, Worldwide Services Group, Including Workers Whose Unemployment Insurance (UI) Wages Are Reported Through Diamondware, Ltd and Nortel Networks, Inc., Including Workers Working at...

  8. Integrated services

    International Nuclear Information System (INIS)

    Chafcouloff, S.; Michel, G.; Trice, M.; Clark, G.; Cosad, C.; Forbes, K.

    1995-01-01

    Integrated services is the name given to several services grouped together under a single contract. Four key factors determine the success of integrated services projects: teamwork, common objectives, technology, and shared benefits. For oil companies, integration means smoother, more efficient operations by bringing service companies on board as part of the team. For the service industry, it means a radical change in the way business is conducted, taking on more responsibility in return for greater incentives. This article reviews the need for change and the approach Schlumberger has adopted to meet this challenge. 20 figs., 20 refs

  9. Integrated services

    Energy Technology Data Exchange (ETDEWEB)

    Chafcouloff, S.; Michel, G.; Trice, M. [Schlumberger Integrated Project Management Group, Montrouge (France); Clark, G. [Schlumberger Testing Services, Aberdeen (United Kingdom); Cosad, C.; Forbes, K. [Schlumberger Integrated Project Management Group, Aberdeen (United Kingdom)

    1995-12-31

    Integrated services is the name given to several services grouped together under a single contract. Four key factors determine the success of integrated services projects: teamwork, common objectives, technology, and shared benefits. For oil companies, integration means smoother, more efficient operations by bringing service companies on board as part of the team. For the service industry, it means a radical change in the way business is conducted, taking on more responsibility in return for greater incentives. This article reviews the need for change and the approach Schlumberger has adopted to meet this challenge. 20 figs., 20 refs

  10. Trajectories of goods in distributed allocation

    NARCIS (Netherlands)

    Chevaleyre, Y.; Endriss, U.; Maudet, N.; Padgham, L.; Parkes, D.; Müller, J.; Parsons, S.

    2008-01-01

    Distributed allocation mechanisms rely on the agents' autonomous (and supposedly rational) behaviour: states evolve as a result of agents contracting deals and exchanging resources. It is no surprise that restrictions on potential deals also restrict the reachability of some desirable states, for

  11. Controllability of a Class of Bimodal Discrete-Time Piecewise Linear Systems

    NARCIS (Netherlands)

    Yurtseven, E.; Camlibel, M.K.; Heemels, W.P.M.H.

    2013-01-01

    In this paper we will provide algebraic necessary and sufficient conditions for the controllability/reachability/null controllability of a class of bimodal discrete-time piecewise linear systems including several instances of interest that are not covered by existing works which focus primarily on

  12. Liquid fiducial marker performance during radiotherapy of locally advanced non small cell lung cancer

    DEFF Research Database (Denmark)

    Rydhög, Jonas Scherman; Mortensen, Steen Riisgaard; Larsen, Klaus Richter

    2016-01-01

    We analysed the positional and structural stability of a long-term biodegradable liquid fiducial marker (BioXmark) for radiotherapy in patients with locally advanced lung cancer. Markers were injected via endoscopic- or endobronchial ultrasound in lymph nodes and reachable primary tumours. Marker...

  13. Empirical Differential Balancing for Nonlinear Systems

    NARCIS (Netherlands)

    Kawano, Yu; Scherpen, Jacquelien M.A.; Dochain, Denis; Henrion, Didier; Peaucelle, Dimitri

    In this paper, we consider empirical balancing of nonlinear systems by using its prolonged system, which consists of the original nonlinear system and its variational system. For the prolonged system, we define differential reachability and observability Gramians, which are matrix valued functions

  14. ServiceNow

    Data.gov (United States)

    US Agency for International Development — A cloud based service for creating a single system of record for all types of business services used by OCIO. Service Now applications are built on a single platform...

  15. Prioritizing Signaling Information Transmission in Next Generation Networks

    Directory of Open Access Journals (Sweden)

    Jasmina Baraković

    2011-01-01

    Full Text Available Next generation transport network is characterized by the use of in-band signaling, where Internet Protocol (IP packets carrying signaling or media information are mixed in transmission. Since transport resources are limited, when any segment of access or core network is congested, IP packets carrying signaling information may be discarded. As a consequence, it may be impossible to implement reachability and quality of service (QoS. Since present approaches are insufficient to completely address this problem, a novel approach is proposed, which is based on prioritizing signaling information transmission. To proof the concept, a simulation study was performed using Network Simulator version 2 (ns-2 and independently developed Session Initiation Protocol (SIP module. The obtained results were statistically processed using Statistical Package for the Social Sciences (SPSS version 15.0. Summarizing our research results, several issues are identified for future work.

  16. New Services Development

    Directory of Open Access Journals (Sweden)

    Peter Ciganek

    2004-01-01

    Full Text Available Dynamic changes in traditional technologies and rising of new technologies call for development of new services. If service providers want to stay on information technologies market, they must keep track with this trend and adjust their services to customer requirements or develop new services. New applications will mainly depend on communication bandwidth and end users ability to handle it. If network providers will be able to ensure necessary bandwidth, there will be nothing that can stop service providers and developers in new service development. People know about growing necessity of new service and ask for them, but they hardly understand that the most important thing for service providers is merchantability and economic return of resources they gave to the developmentand implementation. By the lack of flexible development environment that is able to develop, test and provide final service for operation, new service development is not easy. There are different new service design procedures for various technological and user areas. This is the reason why this paper provides brief description of new service development procedure from technological and administrative point of view.

  17. Verification of Stochastic Process Calculi

    DEFF Research Database (Denmark)

    Skrypnyuk, Nataliya

    algorithms for constructing bisimulation relations, computing (overapproximations of) sets of reachable states and computing the expected time reachability, the last for a linear fragment of IMC. In all the cases we have the complexities of algorithms which are low polynomial in the size of the syntactic....... In support of this claim we have developed analysis methods that belong to a particular type of Static Analysis { Data Flow / Pathway Analysis. These methods have previously been applied to a number of non-stochastic process calculi. In this thesis we are lifting them to the stochastic calculus...... of Interactive Markov Chains (IMC). We have devised the Pathway Analysis of IMC that is not only correct in the sense of overapproximating all possible behaviour scenarios, as is usual for Static Analysis methods, but is also precise. This gives us the possibility to explicitly decide on the trade-o between...

  18. Analyzing Real-Time Systems: Theory and Tools

    DEFF Research Database (Denmark)

    Hune, Thomas Seidelin

    bounded matrix (DBM) data-structure for representing zones, used in most timed model checkers. Using an extension of the region construction, the minimum-cost reachability problem can also be solved for LPTAs. However, the standard way of using zones for representing the state-space cannot be used...... for LPTAs, since there is no way of capturing the cost of states. Based on the notion of facets, zones can be split into smaller zones which can be represented by extended DBMs in an effective way. Minimum-cost reachability for both UPTAs and LPTAs have been implemented in extensions of UPPAAL...... for the parameters has been show to be undecidable. To represent the state-space we extend the DBM data-structure to parametric DBMs, capable of representing zones were the bounds are given by expressions including parameters. The semi-decision procedure is implemented in UPPAAL and constraints ensuring correctness...

  19. Rewriting Modulo SMT and Open System Analysis

    Science.gov (United States)

    Rocha, Camilo; Meseguer, Jose; Munoz, Cesar

    2014-01-01

    This paper proposes rewriting modulo SMT, a new technique that combines the power of SMT solving, rewriting modulo theories, and model checking. Rewriting modulo SMT is ideally suited to model and analyze infinite-state open systems, i.e., systems that interact with a non-deterministic environment. Such systems exhibit both internal non-determinism, which is proper to the system, and external non-determinism, which is due to the environment. In a reflective formalism, such as rewriting logic, rewriting modulo SMT can be reduced to standard rewriting. Hence, rewriting modulo SMT naturally extends rewriting-based reachability analysis techniques, which are available for closed systems, to open systems. The proposed technique is illustrated with the formal analysis of: (i) a real-time system that is beyond the scope of timed-automata methods and (ii) automatic detection of reachability violations in a synchronous language developed to support autonomous spacecraft operations.

  20. Review paper of gateway selection schemes for MANET of NEMO (MANEMO)

    International Nuclear Information System (INIS)

    Mahmood, Z; Hashim, A; Khalifa, O; Anwar, F; Hameed, S

    2013-01-01

    The fast growth of Internet applications brings with it new challenges for researchers to provide new solutions that guarantee better Internet access for mobile hosts and networks. The globally reachable, Home-Agent based, infrastructure Network Mobility (NEMO) and the local, multi-hop, and infrastructure-less Mobile Ad hoc Network (MANET) developed by Internet Engineering Task Force (IETF) support different topologies of the mobile networks. A new architecture was proposed by combining both topologies to obtain Mobile Ad Hoc NEMO (MANEMO). However, the integration of NEMO and MANET introduces many challenges such as network loops, sub-optimal route, redundant tunnel problem, absence of communication without Home Agent reachability, and exit router selection when multiple Exit Routers to the Internet exist. This paper aims to review the different proposed models that could be used to implement the gateway selection mechanism and it highlights the strengths as well as the limitations of these approaches

  1. Service technologies as factor of service and tourism companies' competitiveness

    OpenAIRE

    Zhanna Gornostaeva; Vladimir Zhidkov

    2014-01-01

    The authors define the role of service technology in shaping the quality of service and tourism companies, the authors' method of measuring the quality of service and tourism businesses and developing a conceptual model of quality of service and the conceptual model of the internal quality of the service, and also carry out testing of the model on the example of the 'Intourist' Hotel in Volgograd, Russia.

  2. Service Innovation and Customers’ Involvement in Service Industry in Kosovo

    Directory of Open Access Journals (Sweden)

    MSc. Vjosa Mullatahiri

    2014-06-01

    Full Text Available New developments in the economic arena and rapid technological changes have shifted the economic power from company to customer. As a result, companies changed their approach toward customers’ involvement in new product and/or service development. Usually, innovations are driven by inventions. But not all inventions are successful innovations. Hence, to be successful, inventions should be explored to meet customer needs and demands, and commercialized to make the company profitable (DTI - Occasional Paper No 9, 2007. According to Lowe and Marriott (2006 the innovation is a process of creating and transforming products, services, and organizational processes that are crucial for companies who want to compete in a highly dynamic and competitive market. In this regard, the paper aims to explore the interrelation between market and innovation in services industry, whilst analyzing both customers’ impact in new service development (NSD and Kosovo’s service providers approach in including customers in service development processes. The findings highlight an increased customer power over the NSD processes as a result of their demand and unwillingness to bear the cost of or experiment with new, untested services. Given these developments service providers have started to change their approach of creating and transforming services, namely by involving customers in the service design and development processes, in order to stimulate interest for using and willingness to pay for new service.

  3. Influence of employees' service-oriented behavior on service quality

    Directory of Open Access Journals (Sweden)

    Vučković Jelisaveta

    2015-01-01

    Full Text Available In order to constantly improve the quality of service program, organizations in tourism industry, have to pay special attention to managing employees' behavior, especially those in the first line of service provision and their direct superiors. Encouraging the employees towards service-oriented behavior is greatly determined by the adequate and consistent implementation of human resources management instruments. The subject of this research is an empirical examination of relations between employees' behavior in the service providing process and service quality. This research was conducted during 2012, in a five-star hotel 'Izvor', situated in Arandjelovac.

  4. FAX SERVICE

    CERN Multimedia

    Telephone Service

    2002-01-01

    As from 1st of July 2002, responsibility for running the Fax Service will be transfered to the Printer Service. Future requests for machines, toner and breakdown should be sent to Printer.Support@cern.ch - tel 78888. Telephone Service

  5. The Service Failure and Recovery in the Information Technology Services

    OpenAIRE

    Jun Luo; Weiguo Zhang.; Dabin Qin

    2010-01-01

    It is important to retain customer satisfaction in information technology services. When a service failure occurs, companies need to take service recovery action to recover their customer satisfaction. Although companies cannot avoid all problems and complaints, they should try to make up. Therefore, service failure and service recovery have become an important and challenging issue for companies. In this paper, the literature and the problems in the information technolog...

  6. Determinants of satisfaction with campus transportation services: Implications for service quality

    Directory of Open Access Journals (Sweden)

    Felix Charbatzadeh

    2016-04-01

    Full Text Available Background: In a number of countries, buses are a critical element of public transportation, providing the most inclusive and sustainable mode of transportation to all forms of citizenry, including staff and students of universities. Objectives: The study examines the determinants of satisfaction with campus bus transportation. The article is primarily discursive and based on the synthesis of existing service literature supported by data obtained from a survey of 847 respondents. Method: Structural equation modelling is undertaken using AMOS 19, allowing for the examination of compound relationships between service engagement variables. Results: Results show statistically significant differences between perceived service quality and travel routes. The authors argue that managerial attention to service user experiences does not only hold the key to ongoing competitive success in campus transportation services but also that those services can be significantly enriched through greater managerial attention to the interface between risk of financial loss (which increases when the campus bus transportation service provider becomes less able to compete and service quality. Conclusion: The authors argue that if providers of campus bus transportation services are to rise to their service delivery challenges and also maintain or improve upon their market positions, they must conceptualise their services in a manner that takes into consideration the two-way interrelationship between risk of financial loss and service quality. It must also be noted that, although this study may have relevance for firm–firm scenarios, its focus is primarily on service supplier firm–customer service engagements. Keywords: Modelling; Transportation; Service

  7. 75 FR 74755 - Product Change-Parcel Return Service Negotiated Service Agreement

    Science.gov (United States)

    2010-12-01

    ... POSTAL SERVICE Product Change--Parcel Return Service Negotiated Service Agreement AGENCY: Postal.... SUPPLEMENTARY INFORMATION: The United States Postal Service[supreg] hereby gives notice that on November 17, 2010, it filed with the Postal Regulatory Commission a Request of the United States Postal Service to...

  8. IT Service Departments Struggle to Adopt a Service-Oriented Philosophy

    OpenAIRE

    Aileen Cater-Steel

    2009-01-01

    Many IT service departments are adopting IT service management best practice frameworks such as the IT Infrastructure Library (ITIL) to improve the quality of service to customers. This study reports on recent surveys and case studies of organizations which have embarked on IT service management improvement. It highlights specific difficulties experienced by organizations. Six factors were found to be critical in achieving an effective service-oriented philosophy. The factors are support from...

  9. 76 FR 46677 - Indoor Tanning Services; Cosmetic Services Excise Taxes

    Science.gov (United States)

    2011-08-03

    ... DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Parts 40 and 49 [REG-112841-10] RIN 1545-BJ40 Indoor Tanning Services; Cosmetic Services Excise Taxes AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Notice of public hearing on proposed rulemaking. SUMMARY: This document provides notice...

  10. Computer programming and architecture the VAX

    CERN Document Server

    Levy, Henry

    2014-01-01

    Takes a unique systems approach to programming and architecture of the VAXUsing the VAX as a detailed example, the first half of this book offers a complete course in assembly language programming. The second describes higher-level systems issues in computer architecture. Highlights include the VAX assembler and debugger, other modern architectures such as RISCs, multiprocessing and parallel computing, microprogramming, caches and translation buffers, and an appendix on the Berkeley UNIX assembler.

  11. Acoustic simulation in architecture with parallel algorithm

    Science.gov (United States)

    Li, Xiaohong; Zhang, Xinrong; Li, Dan

    2004-03-01

    In allusion to complexity of architecture environment and Real-time simulation of architecture acoustics, a parallel radiosity algorithm was developed. The distribution of sound energy in scene is solved with this method. And then the impulse response between sources and receivers at frequency segment, which are calculated with multi-process, are combined into whole frequency response. The numerical experiment shows that parallel arithmetic can improve the acoustic simulating efficiency of complex scene.

  12. On Performance of Linear Multiuser Detectors for Wireless Multimedia Applications

    Science.gov (United States)

    Agarwal, Rekha; Reddy, B. V. R.; Bindu, E.; Nayak, Pinki

    In this paper, performance of different multi-rate schemes in DS-CDMA system is evaluated. The analysis of multirate linear multiuser detectors with multiprocessing gain is analyzed for synchronous Code Division Multiple Access (CDMA) systems. Variable data rate is achieved by varying the processing gain. Our conclusion is that bit error rate for multirate and single rate systems can be made same with a tradeoff with number of users in linear multiuser detectors.

  13. The service of public services performance management

    DEFF Research Database (Denmark)

    Lystbæk, Christian Tang

    perspectives on the potential impact of public service performance measurement offer a range of contradictory propositions. Its alleged benefits include public assurance, better functioning of supply markets for public services, and direct improvements of public services. But the literature also demonstrates...... the existence of significant concern about the actual impact, the costs and unintended consequences associated with performance measurement.  Performance measurement and management have been part of the political agenda within the public sphere since their adoption in the post-Second World War period...... of political masters and their mistresses rather than public service. Another area of concern is the cost of performance measurement. Hood & Peters (2004:278) note that performance measurement is likely to “distract middle- and upper-level officials, create massive paperwork, and produce major unintended...

  14. The service of public services performance measurement

    DEFF Research Database (Denmark)

    Lystbæk, Christian Tang

    2014-01-01

    that performance measurement serves as “rituals of verification” which promotes the interests of political masters and their mistresses rather than public service. Another area of concern is the cost of performance measurement. Hood & Peters (2004:278) note that performance measurement is likely to “distract...... measurement suggests a range of contested and contradictory propositions. Its alleged benefits include public assurance, better functioning of supply markets for public services, and direct improvements of public services. But the literature also demonstrates the existence of significant concern about...... the actual impact, the costs and unintended consequences associated with performance measurement. This paper identifies the main rationales and rationalities in the scholarly discourse on public services performance measurement. It concludes with some suggestions on how to deal with the many rationales...

  15. Evosystem Services: Rapid Evolution and the Provision of Ecosystem Services.

    Science.gov (United States)

    Rudman, Seth M; Kreitzman, Maayan; Chan, Kai M A; Schluter, Dolph

    2017-06-01

    Evolution is recognized as the source of all organisms, and hence many ecosystem services. However, the role that contemporary evolution might play in maintaining and enhancing specific ecosystem services has largely been overlooked. Recent advances at the interface of ecology and evolution have demonstrated how contemporary evolution can shape ecological communities and ecosystem functions. We propose a definition and quantitative criteria to study how rapid evolution affects ecosystem services (here termed contemporary evosystem services) and present plausible scenarios where such services might exist. We advocate for the direct measurement of contemporary evosystem services to improve understanding of how changing environments will alter resource availability and human well-being, and highlight the potential utility of managing rapid evolution for future ecosystem services. Copyright © 2017 Elsevier Ltd. All rights reserved.

  16. Thermo-mechanical characterization of the lithosphere : Implications for geothermal resources

    NARCIS (Netherlands)

    Limberger, J.

    2018-01-01

    The two key ingredients needed to commercially exploit a geothermal energy system are (1) sufficiently high subsurface temperatures and (2) presence of rock formations suitable to act as a geothermal reservoir at reachable depths. Subsurface temperatures are controlled by the heat flowing from deep

  17. Recursion Versus Replication in Simple Cryptographic Protocols

    DEFF Research Database (Denmark)

    Hüttel, Hans; Srba, Jiri

    2005-01-01

    We use some very recent techniques from process algebra to draw interesting conclusions about the well studied class of ping-pong protocols introduced by Dolev and Yao. In particular we show that all nontrivial properties, including reachability and equivalence checking wrt. the whole van Glabbee...

  18. Model-based schedulability analysis of safety critical hard real-time Java programs

    DEFF Research Database (Denmark)

    Bøgholm, Thomas; Kragh-Hansen, Henrik; Olsen, Petur

    2008-01-01

    verifiable by the Uppaal model checker [23]. Schedulability analysis is reduced to a simple reachability question, checking for deadlock freedom. Model-based schedulability analysis has been developed by Amnell et al. [2], but has so far only been applied to high level specifications, not actual...

  19. Decidability Issues for Extended Ping-Pong Protocols

    DEFF Research Database (Denmark)

    Huttel, Hans; Srba, Jiri

    2006-01-01

    We use some recent techniques from process algebra to draw several conclusions about the well studied class of ping-pong protocols introduced by Dolev and Yao. In particular we show that all nontrivial properties, including reachability and equivalence checking wrt. the whole van Glabbeek...

  20. Analysis of hybrid systems: An ounce of realism can save an infinity of states

    DEFF Research Database (Denmark)

    Fränzle, Martin

    1999-01-01

    Hybrid automata have been introduced in both control engineering and computer science as a formal model for the dynamics of hybrid discrete-continuous systems. In the case of so-called linear hybrid automata this formalization supports semi-decision procedures for state reachability, yet no decis...

  1. The structure of service quality perceptions for multiple-encounter services.

    Science.gov (United States)

    Andaleeb, Syed Saad; Kara, Ali

    2013-01-01

    The objective of this study was to examine a complex service environment-hospitals-to suggest how service quality could be reframed and measured for multiple-encounter service situations more effectively. In this cross-sectional study, a sample of 371 patients completed the survey instrument. Service quality measures were guided by the literature but allowed to flow from the respondents at the preliminary stage. Confirmatory factor analysis, along with structural equation modeling, was used to test the hypothesized relationships among key actors' performance metrics (KAPMs). Patient satisfaction is significantly influenced by perceived service quality based on KAPMs. For multiple-encounter services, service quality dimensions and measures ought to be tied to KAPMs. Primary actors-ie, doctors-need knowledge and skills about patient psychology, negotiation, handling difficult patients, and, importantly, "putting the customer first." Sensitivity training on such matters should be provided. The secondary actors are the nurses who have more frequent contact with the patients. Nurses need to be perceived as "patient advocates." Effective advocacy begins with prompt and caring services to build trust. The tertiary actors in their support role also ought to be integrated into becoming vital part of the service provided.

  2. The Customer Interaction Process: Managing Customer, the Service Encounter and Service Recovery

    OpenAIRE

    TANASE, George Cosmin

    2013-01-01

    Service interactions are next to customer relationships one of the primary value processes of a service provider. Due to the fact that in service situations value is created via the throughput of the customer through the service production process, and this throughput is realized in service interactions, these interactions are one of the major value drivers of a service firms value. As one of a service providers primary value processes, the interaction process aims at managing the service int...

  3. Marketing of Healthcare Services with reference to Laboratory services

    OpenAIRE

    Ajotikar, Vaishali M.; Ali, Dr.M. M

    2015-01-01

    The paper attempts to study empirically dealers point of view on the 7ps i.e. marketing mix for laboratory services. The primary data was collected from dealers by administering interview schedules on 7ps of laboratory service marketing. This data collected was tabulated, analyzed and intepretated so as to suitably arrive at findings. High score for statements: laboratory services are prompt, services are rendered on cash basis to patients, laboratory has collection centers in different area...

  4. E-Service Culturalization: New Trend in E-Service Design

    OpenAIRE

    Tolba , Rasha; Meyer , Kyrill; Zinke , Christian

    2017-01-01

    Part 12: Service Specification and Composition; International audience; In this paper, we draw attention to the importance of incorporating aspects of localization into design of e-Services in order to address the differences among e-Services consumers such as linguistic differences, and cultural diversity. In the past, many companies have realized that the idea of promoting an e-Service through a single version of a portal/website is not suitable for all of the potential users or customers. ...

  5. Service Matters: Single Service Point as a Collaborative and Professional Learning Initiative for Service Excellence

    Science.gov (United States)

    Chauvet, Marianne; Bourbous, Vicki; Liston, Frances

    2016-01-01

    Changes and innovations in higher education learning and teaching acted as a catalyst for rethinking the way in which service was delivered to library clients at Australian Catholic University. The Single Service Point was piloted at one campus library in 2014 to develop a best practice approach to service delivery. The merging of cultures within…

  6. Adoption of Lean Thinking and Service Improvement for Care Home Service

    OpenAIRE

    Chuang-Chun Chiou

    2014-01-01

    Ageing population is a global trend; therefore the need of care service has been increasing dramatically. There are three basic forms of service delivered to the elderly: institution, community, and home. Particularly, the institutional service can be seen as an extension of medical service. The nursing home or so-called care home which is equipped with professional staff and facilities can provide a variety of service including rehabilitation service, short-term care, and long term care. Sim...

  7. Broadband Radio Service (BRS) and Educational Broadband Service (EBS) Transmitters

    Data.gov (United States)

    Department of Homeland Security — The Broadband Radio Service (BRS), formerly known as the Multipoint Distribution Service (MDS)/Multichannel Multipoint Distribution Service (MMDS), is a commercial...

  8. Web service discovery among large service pools utilising semantic similarity and clustering

    Science.gov (United States)

    Chen, Fuzan; Li, Minqiang; Wu, Harris; Xie, Lingli

    2017-03-01

    With the rapid development of electronic business, Web services have attracted much attention in recent years. Enterprises can combine individual Web services to provide new value-added services. An emerging challenge is the timely discovery of close matches to service requests among large service pools. In this study, we first define a new semantic similarity measure combining functional similarity and process similarity. We then present a service discovery mechanism that utilises the new semantic similarity measure for service matching. All the published Web services are pre-grouped into functional clusters prior to the matching process. For a user's service request, the discovery mechanism first identifies matching services clusters and then identifies the best matching Web services within these matching clusters. Experimental results show that the proposed semantic discovery mechanism performs better than a conventional lexical similarity-based mechanism.

  9. Web services foundations

    CERN Document Server

    Bouguettaya, Athman; Daniel, Florian

    2013-01-01

    Web services and Service-Oriented Computing (SOC) have become thriving areas of academic research, joint university/industry research projects, and novel IT products on the market. SOC is the computing paradigm that uses Web services as building blocks for the engineering of composite, distributed applications out of the reusable application logic encapsulated by Web services. Web services could be considered the best-known and most standardized technology in use today for distributed computing over the Internet.Web Services Foundations is the first installment of a two-book collection coverin

  10. Quality of service management framework for dynamic chaining of geographic information services

    Science.gov (United States)

    Onchaga, Richard

    2006-06-01

    Dynamic chaining of geographic information services (geo-services) is gaining popularity as a new paradigm for evolving flexible geo-information systems and for providing on-demand access to geo-information. In dynamic chaining, disparate geo-services are discovered and composed at run time to yield more elaborate functionality and create value-added geo-information. Common approaches to service chaining discover and compose disparate geo-services based on the functional capability of individual geo-services. The primary concern of common approaches is thus the emergent behavior of the resulting composite geo-service. However, as geo-services become mundane and take on a greater and more strategic role in mission critical processes, deliverable quality of service (QoS) becomes an important concern. QoS concerns operational characteristics of a service that determine its utility in an application context. To address pertinent QoS requirements, a new approach to service chaining becomes necessary. In this paper we propose a QoS-aware chaining approach in which geo-services are discovered, composed and executed considering both functional and QoS requirements. We prescribe a QoS management framework that defines fundamental principles, concepts and mechanisms which can be applied to evolve an effective distributed computing platform for QoS-aware chaining of geo-services - the so-called geo-service infrastructure. The paper also defines an extensible QoS model for services delivered by dynamic compositions of geo-services. The process of orthophoto generation is used to demonstrate the applicability of the prescribed framework to service-oriented geographic information processing.

  11. The Importance of Perceived Service Value in Retail Banking Services

    Directory of Open Access Journals (Sweden)

    Aleksandra Pisnik

    2016-12-01

    Full Text Available Purpose – In many industries, perceived service value is found to be a significant mediator between perceived service quality and customer satisfaction and loyalty. Therefore, this paper aims to test a conceptual model of perceived service value with its antecedents, such as perceived price and perceived service quality, and consequences, customer satisfaction and loyalty, in the retail banking industry. Design/Methodology/Approach – For the empirical study, a measurement instrument was developed and tested for validity and reliability. Measures were assessed with exploratory factor analysis (EFA, confirmatory factor analysis (CFA and structural equation modeling (SEM. A structural model with five reflective constructs was evaluated to test direct and indirect relationships among constructs. Findings and implications – Results confirm a mediating role of perceived value in relationships between perceived price, perceived service quality, customer satisfaction, and customer loyalty in the case of retail banking services. Limitations – Because the results are directly relevant only to customers and marketing managers of retail banking services, generalizations of the findings beyond the immediate population observed should be made with caution. Originality – This paper extends existing knowledge with both direct and indirect effects among researched concepts, and shows the importance of perceived service value in achieving satisfied and loyal customers in retail banking services.

  12. Web Services as Public Services: Are We Supporting Our Busiest Service Point?

    Science.gov (United States)

    Riley-Huff, Debra A.

    2009-01-01

    This article is an analysis of academic library organizational culture, patterns, and processes as they relate to Web services. Data gathered in a research survey is examined in an attempt to reveal current departmental and administrative attitudes, practices, and support for Web services in the library research environment. (Contains 10 tables.)

  13. Evaluating technology service options.

    Science.gov (United States)

    Blumberg, D F

    1997-05-01

    Four service and support options are available to healthcare organizations for maintaining their growth arsenals of medical and information technology. These options include maintaining and servicing all equipment using a facility-based biomedical engineering and MIS service department; using a combination of facility-based service and subcontracted service; expanding facility-based biomedical and MIS service departments to provide service to other healthcare organizations to achieve economies of scale; and outsourcing all maintenance, repair, and technical support services. Independent service companies and original equipment manufacturers (OEMs) are offering healthcare organizations a wider array of service and support capabilities than ever before. However, some health systems have successfully developed their own independent service organizations to take care of their own--and other healthcare organizations'--service and support needs.

  14. Service business model framework and the service innovation scope

    NARCIS (Netherlands)

    van der Aa, W.; van der Rhee, B.; Victorino, L.

    2011-01-01

    In this paper we present a framework for service business models. We build on three streams of research. The first stream is the service management and marketing literature that focuses on the specific challenges of managing a service business. The second stream consists of research on e-business

  15. Aiming for Service Excellence: Implementing a Plan for Customer Service Quality at a Blended Service Desk

    Science.gov (United States)

    Oud, Joanne; Genzinger, Peter

    2016-01-01

    This article discusses a public service review and redesign that resulted in a blended service desk combining reference and circulation functions, staffed by nonlibrarians. The redesign implements a number of organizational structures that encourage service excellence, as found in the business literature and in examples of nonlibrary organizations…

  16. International trade in services: A scoping study of services trade and estimates of benefits from services trade liberalisation

    OpenAIRE

    Ballingall, John; Stephenson, John

    2005-01-01

    This is a scoping study. It summarises the dynamics of services trade in the world economy and discusses some of the benefits of services trade liberalisation from a qualitative and quantitative view point. We place particular emphasis on the role and interests of developing and least developed countries in world services trade. The study also provides an overview of services trade in the New Zealand economy, and, in places, highlights aspects of services trade where New Zealand’s interests m...

  17. Abstraction of Dynamical Systems by Timed Automata

    DEFF Research Database (Denmark)

    Wisniewski, Rafael; Sloth, Christoffer

    2011-01-01

    To enable formal verification of a dynamical system, given by a set of differential equations, it is abstracted by a finite state model. This allows for application of methods for model checking. Consequently, it opens the possibility of carrying out the verification of reachability and timing re...

  18. Analysis of multi-stage open shop processing systems

    NARCIS (Netherlands)

    Eggermont, C.E.J.; Schrijver, A.; Woeginger, G.J.; Schwentick, T.; Dürr, C.

    2011-01-01

    We study algorithmic problems in multi-stage open shop processing systems that are centered around reachability and deadlock detection questions. We characterize safe and unsafe system states. We show that it is easy to recognize system states that can be reached from the initial state (where the

  19. Ongoing Work on Automated Verification of Noisy Nonlinear Systems with Ariadne

    NARCIS (Netherlands)

    Geretti, Luca; Bresolin, Davide; Collins, Pieter; Zivanovic Gonzalez, Sanja; Villa, Tiziano

    2017-01-01

    Cyber-physical systems (CPS) are hybrid systems that commonly consist of a discrete control part that operates in a continuous environment. Hybrid automata are a convenient model for CPS suitable for formal verification. The latter is based on reachability analysis of the system to trace its hybrid

  20. Decidable Fragments of a Higher Order Calculus with Locations

    DEFF Research Database (Denmark)

    Bundgaard, Mikkel; Godskesen, Jens Christian; Huttel, Hans

    2009-01-01

    Homer is a higher order process calculus with locations. In this paper we study Homer in the setting of the semantic finite control property, which is a finite reachability criterion that implies decidability of barbed bisimilarity. We show that strong and weak barbed bisimilarity are undecidable...

  1. Monotonic Set-Extended Prefix Rewriting and Verification of Recursive Ping-Pong Protocols

    DEFF Research Database (Denmark)

    Delzanno, Giorgio; Esparza, Javier; Srba, Jiri

    2006-01-01

    of messages) some verification problems become decidable. In particular we give an algorithm to decide control state reachability, a problem related to security properties like secrecy and authenticity. The proof is via a reduction to a new prefix rewriting model called Monotonic Set-extended Prefix rewriting...

  2. Path trading : fast algorithms, smoothed analysis, and hardness results

    NARCIS (Netherlands)

    Berger, A.; Röglin, H.; Zwaan, van der G.R.J.; Pardalos, P.M.; Rebennack, S.

    2011-01-01

    The Border Gateway Protocol (BGP) serves as the main routing protocol of the Internet and ensures network reachability among autonomous systems (ASes). When traffic is forwarded between the many ASes on the Internet according to that protocol, each AS selfishly routes the traffic inside its own

  3. Three-Dimensional Service Value Creation Model Based on Multidisciplinary Framework: Service Value Transition in Flower Tourism and Robotized Music Appreciation Services

    OpenAIRE

    Nakamura, Kotaro; Imahori, Takahiro; Ikawa, Yasuo

    2010-01-01

    This paper is focused on the process of value creation in the service business and on the shift of service value created in actual service businesses. The analysis is used to demonstrate proposed models for explaining this shift. Service value is successfully created when customers enjoy the benefits of services proposed through a system of service businesses. The model visualizes the shift of service value, focusing on the three axes of width (of the place for service providing/usage in the ...

  4. Service regime: An empirical analysis of innovation patterns in service firms.

    NARCIS (Netherlands)

    Chang, Y.C.; Linton, J.D.; Linton, Jonathan; Chen, M.N.

    2012-01-01

    The concept of service regime is developed to extend and test Miozzo and Soete's service taxonomy. Derived from the synthesis approach of service innovation, the service regime considers sources of innovation, innovation trajectories, and appropriability. Hypotheses on firm patterns of innovation

  5. Relationships Between Service Personal Values, Service Value, Satisfaction, and Loyalty: A Study Regarding Services of Private and State Hospitals in Turkey

    Directory of Open Access Journals (Sweden)

    Metin Argan

    2017-06-01

    Full Text Available Service and value are the two inseparable concepts in experiential service environment. Service personal value is a concept that is subjectively assessed from a consumer perspective, and is associated with service value, consumer satisfaction and loyalty. In this context, the purpose of this study was to examine the relationships between services personal values, service value, satisfaction, and loyalty. Data were collected from persons (996 receiving services from private hospitals and state hospitals using convenience sampling method. The scales of service personal values, service value, satisfaction and loyalty were adapted from literature. Confirmatory factor analysis (CFA was used to investigate validity and reliability of the scales. Then, a structural equation model (SEM was developed and tested using data with Lisrel 8.80 software. The results of the study indicate significant relationships between services personal values, service value, satisfaction, and loyalty. The results of the study have significant implications as to how well private hospital managers design strategies of health service, satisfaction, and loyalty.

  6. Service management process maps your route to service excellence

    CERN Document Server

    Associates, Computer

    2007-01-01

    ITIL® has become the de facto standard in Service Management best practice processes and the lens through which the value of IT services is viewed and measured. ITIL, with its emphasis on standardizing IT processes and building a common language, helps you better manage and optimize the cost and quality of IT services.As organizations look to implement quality Service Management processes, the same questions repeatedly arise: How do all these processes interface with each other? How do the processes work within a culture of change and evolution? How can we easily communicate

  7. Service Provisioning Framework for Digital Smart Home Services

    OpenAIRE

    Kazanavicius , Egidijus; Imbrasas , Darius; Razukas , Mantas

    2011-01-01

    Part 3: Digital Goods and Products; International audience; “Development and Management Framework of Smart Home Services (SNAPAS)” is an innovative system, which seeks to fill the market niche of Smart Home services and fully complies with the priorities of scientific development approved by the European Parliament and Council. Framework is characterized by an open component-based pluggable architecture, which provides new forms of interactive services in home environments, including the thir...

  8. Logistics service management; differentiating the logistics service

    NARCIS (Netherlands)

    Veeken, van der D.J.M.; Rutten, W.G.M.M.

    1998-01-01

    In this article a model is described, which enables differentiation of the logistics service that a company offers to its customers. Differentiating this service is essential for businesses with a large variation within their customer and/or products portfolio. The model consists of four phases:

  9. Producer services, economic geography, and services tradability

    NARCIS (Netherlands)

    de Vaal, A; van den Berg, M

    We investigate how the incorporation of producer services linkages affects the outcome of an economic geography model. We specify the production of manufactures such that a variety of producer services is needed to transform tradable unfinished goods into final consumption goods. We find that

  10. APPLICATION FRAMEWORK IN ENGINEERING SERVICE ORIENTED ARCHITECTURE SYSTEM SERVICE

    Directory of Open Access Journals (Sweden)

    Ade Hodijah

    2017-03-01

    Full Text Available The Service Engineering (SE is understood as a framework to create innovative services in application development of information technology approach to Service Oriented Architecture (SOA. Implementing SOA is required methodology to identify services that can be used again in the application and organization of a company. in this research, software development model used is object-oriented methodologies, SOA itself is a collection consisting of tools, technologies, frameworks, and best practices that facilitate the implementation of a service quickly. in a study this uses the tools of Business Process Management System (BPMS to support the implementation of service-oriented software. the purpose of this study is to produce a model of activities and artifacts of the application software development models of the SE with a case study Rate Loans. Validation to the design of the model is done through testing of the software produced. The results showed that the application of the SE in the development of service-oriented software can use the object-oriented methodology by providing additional value-added analysis and redesign of business processes to be implemented on a BPMS. BPMS usage of the application of the SE on the SOA has the advantage of visualization in the management of business processes.

  11. Management services

    International Nuclear Information System (INIS)

    Adkins, S.K.; Alford, D.R.; Barnette, A.B.

    1979-01-01

    The Management Services Section provides coordinated professional administrative services to the Fusion Energy Division (FED), allowing the work of technical professionals to be more fully concentrated in their areas of specialty. Services are provided in general administration, personnel, financial management, communications (including text and graphics generation), management information, library, safety, quality assurance, and nonprogrammatic engineering services. Highlights of the past year included adoption of the Procurement Module in the FED Management Information System (MIS) for use by the entire Laboratory, completion of the Personnel Module of the MIS, greatly increased personnel recruiting activity, and increased industrial subcontracting activity

  12. The Implementation of Minimum Service Standards (MMS on Public Service for Health Services Sector in Bondowoso, Indonesia

    Directory of Open Access Journals (Sweden)

    Untung Kuzairi

    2018-04-01

    Full Text Available One of heatlh policies implemented by the hospital is the minimum service standards (MSS. MSS is a benchmark of hospital service quality in providing services to the public. Talking about health service quality problem, it was found out as the field fact that the achievement of MSS indicator in General Hospital of Dr. H. Koesnadi Bondowoso, Indonesia in 2016 still did not fulfill target of standard hospital service (type B and  minimum service standard (MSS of hospital. This fact shows that the quality of health services in general hospital of  dr. H. Koesnadi Bondowoso is still low. So, this research aims to describe the policy implementation of minimum service standard and to analyze the obstacles in the implementation of MSS policy at general hospital of  dr. H. Koesnadi Bondowoso. So, this research would discuss the policy implementation of minimum service standards by using Edward III concept as a tool to analyze it. This research employed qualitative research with phenomenological approach. The results showed that the implementation of MSS policy of dr. H. Koesnadi Bondowoso general hospital still did not run well. This was due to several factors  such as communication, bureaucratic structure, sources, dispositions (attitude and leadership in sectoral ego control. Sectoral ego can be shaped from educational background of specialist doctors who still adhered seniority and lack of individual role of implementor in building interpersonal communication and conflict management.

  13. Body Space in Social Interactions: A Comparison of Reaching and Comfort Distance in Immersive Virtual Reality

    Science.gov (United States)

    Iachini, Tina; Coello, Yann; Frassinetti, Francesca; Ruggiero, Gennaro

    2014-01-01

    Background Do peripersonal space for acting on objects and interpersonal space for interacting with con-specifics share common mechanisms and reflect the social valence of stimuli? To answer this question, we investigated whether these spaces refer to a similar or different physical distance. Methodology Participants provided reachability-distance (for potential action) and comfort-distance (for social processing) judgments towards human and non-human virtual stimuli while standing still (passive) or walking toward stimuli (active). Principal Findings Comfort-distance was larger than other conditions when participants were passive, but reachability and comfort distances were similar when participants were active. Both spaces were modulated by the social valence of stimuli (reduction with virtual females vs males, expansion with cylinder vs robot) and the gender of participants. Conclusions These findings reveal that peripersonal reaching and interpersonal comfort spaces share a common motor nature and are sensitive, at different degrees, to social modulation. Therefore, social processing seems embodied and grounded in the body acting in space. PMID:25405344

  14. Strategy complexity of two-player, zero-sum games

    DEFF Research Database (Denmark)

    Ibsen-Jensen, Rasmus

    on the algorithms. I consider a wide assortment of different two-player, zero-sum game classes, e.g. matrix games, uni-chain concurrent mean-payoff games, concurrent mean-payoff games, concurrent reachability games and one-clock priced timed games. In all game classes considered, except for one-clock priced timed...... non-zero probability used in one of the probability distributions. In each case I provide relatively tight bounds on the patience of the “good” strategy that requires the least patience in the worst game of the game class. I will give an improved bound on the patience of concurrent reachability games......This dissertation considers two-player, zero-sum games with a focus on how complicated they are to play; a notion I will call strategy complexity. Often, knowing good bounds on the strategy complexity indicates bounds on the run time of various algorithms. In such cases I will also derive bounds...

  15. Testing the distinctiveness of visual imagery and motor imagery in a reach paradigm.

    Science.gov (United States)

    Gabbard, Carl; Ammar, Diala; Cordova, Alberto

    2009-01-01

    We examined the distinctiveness of motor imagery (MI) and visual imagery (VI) in the context of perceived reachability. The aim was to explore the notion that the two visual modes have distinctive processing properties tied to the two-visual-system hypothesis. The experiment included an interference tactic whereby participants completed two tasks at the same time: a visual or motor-interference task combined with a MI or VI-reaching task. We expected increased error would occur when the imaged task and the interference task were matched (e.g., MI with the motor task), suggesting an association based on the assumption that the two tasks were in competition for space on the same processing pathway. Alternatively, if there were no differences, dissociation could be inferred. Significant increases in the number of errors were found when the modalities for the imaged (both MI and VI) task and the interference task were matched. Therefore, it appears that MI and VI in the context of perceived reachability recruit different processing mechanisms.

  16. Optimal control

    CERN Document Server

    Aschepkov, Leonid T; Kim, Taekyun; Agarwal, Ravi P

    2016-01-01

    This book is based on lectures from a one-year course at the Far Eastern Federal University (Vladivostok, Russia) as well as on workshops on optimal control offered to students at various mathematical departments at the university level. The main themes of the theory of linear and nonlinear systems are considered, including the basic problem of establishing the necessary and sufficient conditions of optimal processes. In the first part of the course, the theory of linear control systems is constructed on the basis of the separation theorem and the concept of a reachability set. The authors prove the closure of a reachability set in the class of piecewise continuous controls, and the problems of controllability, observability, identification, performance and terminal control are also considered. The second part of the course is devoted to nonlinear control systems. Using the method of variations and the Lagrange multipliers rule of nonlinear problems, the authors prove the Pontryagin maximum principle for prob...

  17. Developing an Employee Counselling Service within the British National Health Service.

    Science.gov (United States)

    Whelan, Linda; Robson, Maggie; Cook, Peter

    1999-01-01

    Evaluation of an employee counseling service in Britain's National Health Service by 26 staff participants found the service was valued by employees. Designed to meet the objectives of a "healthy workplace" initiative, the service appeared to be addressing staff support needs. (SK)

  18. Study on e-government services quality: The integration of online and offline services

    Directory of Open Access Journals (Sweden)

    Jing Fan

    2015-05-01

    Full Text Available Purpose: E-Government, as a new bond linking the government and the public, has gradually become the focus of innovation in government services. The paper focuses on the e-Government service quality issues from the perspective of users. Design/methodology/approach: From the aspects of online service quality perception and offline service quality perception, based on IS Success model and SERQUAL model, e-Government Services Quality model has been set up with information quality, system quality and service quality as key factors. Then, the survey method was applied to collect data and then to test the model. Findings: It was found that users’ perception of offline service quality has a significant effect on improving their perception of online service quality, and online service quality perception has a significant effect on public satisfaction of e-Government services; information clarity, system security and stability, interactive services and “one-stop” services all have a significant effect on public satisfaction of e-Government services. However, offline service quality perception has certain positive effect on public satisfaction of e-Government services but not dramatically. Research limitations/implications: Mobile e-Government as an important direction of the development of e-Government, in the future, we will study more about mobile e-Government services channels. Originality/value: This study further develops the theory of information system service quality, and also provides a theoretical reference for government departments. On the one hand, based on the characteristics of e-government system, information quality, system quality and service quality in the previous system service model are further discussed; on the other hand, both online and offline services are taken into consideration in the information system service model, thus establishing the e-government services quality model and making an in-depth study of the

  19. Service marketing

    Directory of Open Access Journals (Sweden)

    Babić-Hodović Vesna

    2002-01-01

    Full Text Available Development of postindustrial society and services revolution created numerous changes in size of consumer demand, consumer reaction and priorities. Continuous change on the side of demand and offer must follow changes in marketing orientation. Leader in that change is services marketing which by knowing services range and all the changes builds a new concept called Relationship Marketing.

  20. Nursing service innovation: A case study examining emergency nurse practitioner service sustainability.

    Science.gov (United States)

    Fox, Amanda; Gardner, Glenn; Osborne, Sonya

    2018-02-01

    This research aimed to explore factors that influence sustainability of health service innovation, specifically emergency nurse practitioner service. Planning for cost effective provision of healthcare services is a concern globally. Reform initiatives are implemented often incorporating expanding scope of practice for health professionals and innovative service delivery models. Introducing new models is costly in both human and financial resources and therefore understanding factors influencing sustainability is imperative to viable service provision. This research used case study methodology (Yin, ). Data were collected during 2014 from emergency nurse practitioners, emergency department multidisciplinary team members and documents related to nurse practitioner services. Collection methods included telephone and semi-structured interviews, survey and document analysis. Pattern matching techniques were used to compare findings with study propositions. In this study, emergency nurse practitioner services did not meet factors that support health service sustainability. Multidisciplinary team members were confident that emergency nurse practitioner services were safe and helped to meet population health needs. Organizational support for integration of nurse practitioner services was marginal and led to poor understanding of service capability and underuse. This research provides evidence informing sustainability of nursing service models but more importantly raises questions about this little explored field. The findings highlight poor organizational support, excessive restrictions and underuse of the service. This is in direct contrast to contemporary expanding practice reform initiatives. Organizational support for integration is imperative to future service sustainability. © 2017 John Wiley & Sons Ltd.

  1. CDBG Public Services Activity

    Data.gov (United States)

    Department of Housing and Urban Development — CDBG activity related to public services, including senior services, legal services, youth services, employment training, health services, homebuyer counseling, food...

  2. Volunteer Service and Service Learning: Opportunities, Partnerships, and United Nations Millennium Development Goals.

    Science.gov (United States)

    Dalmida, Safiya George; Amerson, Roxanne; Foster, Jennifer; McWhinney-Dehaney, Leila; Magowe, Mabel; Nicholas, Patrice K; Pehrson, Karen; Leffers, Jeanne

    2016-09-01

    This article explores approaches to service involvement and provides direction to nurse leaders and others who wish to begin or further develop global (local and international) service or service learning projects. We review types of service involvement, analyze service-related data from a recent survey of nearly 500 chapters of the Honor Society of Nursing, Sigma Theta Tau International (STTI), make recommendations to guide collaborative partnerships and to model engagement in global and local service and service learning. This article offers a literature review and describes results of a survey conducted by the STTI International Service Learning Task Force. Results describe the types of service currently conducted by STTI nursing members and chapters, including disaster response, service learning, and service-related responses relative to the Millennium Development Goals (MDGs). The needs of chapter members for information about international service are explored and recommendations for promoting global service and sustainability goals for STTI chapters are examined. Before engaging in service, volunteers should consider the types of service engagement, as well as the design of projects to include collaboration, bidirectionality, sustainability, equitable partnerships, and inclusion of the United Nations Sustainable Development Goals. STTI supports the learning, knowledge, and professional development of nurses worldwide. International service and collaboration are key to the advancement of the nursing profession. Culturally relevant approaches to international service and service learning are essential to our global organization, as it aims to impact the health status of people globally. © 2016 Sigma Theta Tau International.

  3. 78 FR 63310 - Senior Executive Service; Fiscal Service Performance Review Board

    Science.gov (United States)

    2013-10-23

    ... Performance Review Board AGENCY: Bureau of the Fiscal Service, Treasury. ACTION: Notice. SUMMARY: This notice announces the appointment of the members of the Fiscal Service Performance Review Board (PRB) for the Bureau of the Fiscal Service (Fiscal Service). The PRB reviews the performance appraisals of career senior...

  4. Virtual Web Services

    OpenAIRE

    Rykowski, Jarogniew

    2007-01-01

    In this paper we propose an application of software agents to provide Virtual Web Services. A Virtual Web Service is a linked collection of several real and/or virtual Web Services, and public and private agents, accessed by the user in the same way as a single real Web Service. A Virtual Web Service allows unrestricted comparison, information merging, pipelining, etc., of data coming from different sources and in different forms. Detailed architecture and functionality of a single Virtual We...

  5. Full Service Leasing

    OpenAIRE

    Richter, Ján

    2009-01-01

    Aim of this master thesis is to describe the service of Full Service Leasing, as a modern form of financing and management of assets, primarily automobile fleet. Description of full service leasing is designed as a comprehensive and complete guide to support reader's position when deciding to finance and manage a fleet by this service. Whether the reader is an entrepreneur, CFO, fleet manager, new employee of leasing company, or anyone who is interested in this service, this master thesis wil...

  6. Applying Importance-Performance Analysis as a Service Quality Measure in Food Service Industry

    OpenAIRE

    Tzeng, Gwo-Hshiung; Chang, Hung-Fan

    2011-01-01

    As the global economy becomes a service oriented economy, food service accounts for over 20% of service revenue, with an annual growth rate of more than 3%. Compared to physical products, service features are invisible, and the production and sale occurs simultaneously. There is not easy to measure the performance of service. Therefore, the service quality of catering services is considered to be an important topic of service management. According Market Intelligence & Consulting Institute (M...

  7. ATTILA 2 S. A technical and interactive test language for architecture allowing simultaneity

    International Nuclear Information System (INIS)

    Batllo, M.

    1980-01-01

    The name ATTILA 2 S is inspired from ATLAS, test language adopted by the Department of Defence of America (D.O.D.) but cannot be implemented on our installation. ATTILA 2 S is principally characterized by: its technical vocabulary (P.O.L.), its interactivity, its simultaneity with main job (Multiprogramming and Multiprocessing allowed by multiprocessors architecture. This language has been developed for the Paris C.R.T. system (Photographies analysis system) on Control Data Cyber 72 computer [fr

  8. Enhanced Inclusion Removal from Steel in the Tundish

    Energy Technology Data Exchange (ETDEWEB)

    R. C. Bradt; M.A.R. Sharif

    2009-09-25

    The objective of this project was to develop an effective chemical filtering system for significantly reducing the content of inclusion particles in the steel melts exiting the tundish for continuous casting. This project combined a multi-process approach that aimed to make significant progress towards an "inclusion free" steel by incorporating several interdependent concepts to reduce the content of inclusions in the molten steel exiting the tundish for the caster. The goal is to produce "cleaner" steel.

  9. Enhanced Incluison Removal from Steel in the Tundish

    Energy Technology Data Exchange (ETDEWEB)

    R.C. Bradt; M.A.R. Sharif

    2009-09-25

    The objective of this project was to develop an effective chemical filtering system for significantly reducing the content of inclusion particles in the steel melts exiting the tundish for continuous casting. This project combined a multi-process approach that aimed to make significant progress towards an "inclusion free" steel by incorporating several interdependent concepts to reduce the content of inclusions in the molten steel exiting the tundish for the caster. The goal is to produce "cleaner" steel.

  10. UFMulti: A new parallel processing software system for HEP

    Science.gov (United States)

    Avery, Paul; White, Andrew

    1989-12-01

    UFMulti is a multiprocessing software package designed for general purpose high energy physics applications, including physics and detector simulation, data reduction and DST physics analysis. The system is particularly well suited for installations where several workstation or computers are connected through a local area network (LAN). The initial configuration of the software is currently running on VAX/VMS machines with a planned extension to ULTRIX, using the new RISC CPUs from Digital, in the near future.

  11. UFMULTI: A new parallel processing software system for HEP

    International Nuclear Information System (INIS)

    Avery, P.; White, A.

    1989-01-01

    UFMulti is a multiprocessing software package designed for general purpose high energy physics applications, including physics and detector simulation, data reduction and DST physics analysis. The system is particularly well suited for installations where several workstations or computers are connected through a local area network (LAN). The initial configuration of the software is currently running on VAX/VMS machines with a planned extension to ULTRIX, using the new RISC CPUs from Digital, in the near future. (orig.)

  12. 42 CFR 440.20 - Outpatient hospital services and rural health clinic services.

    Science.gov (United States)

    2010-10-01

    ... Definitions § 440.20 Outpatient hospital services and rural health clinic services. (a) Outpatient hospital... services that are not generally furnished by most hospitals in the State. (b) Rural health clinic services... 42 Public Health 4 2010-10-01 2010-10-01 false Outpatient hospital services and rural health...

  13. Dosimetry Service

    CERN Multimedia

    2006-01-01

    Cern Staff and Users can now consult their dose records for an individual or an organizational unit with HRT. Please see more information on our web page: http://cern.ch/rp-dosimetry Dosimetry Service is open every morning from 8.30 - 12.00. Closed in the afternoons. We would like to remind you that dosimeters cannot be sent to customers by internal mail. Short-term dosimeters (VCT's) must always be returned to the Service after the use and must not be left on the racks in the experimental areas or in the secretariats. Dosimetry Service Tel. 7 2155 Dosimetry.service@cern.ch http://cern.ch/rp-dosimetry

  14. A service brokering and recommendation mechanism for better selecting cloud services.

    Science.gov (United States)

    Gui, Zhipeng; Yang, Chaowei; Xia, Jizhe; Huang, Qunying; Liu, Kai; Li, Zhenlong; Yu, Manzhu; Sun, Min; Zhou, Nanyin; Jin, Baoxuan

    2014-01-01

    Cloud computing is becoming the new generation computing infrastructure, and many cloud vendors provide different types of cloud services. How to choose the best cloud services for specific applications is very challenging. Addressing this challenge requires balancing multiple factors, such as business demands, technologies, policies and preferences in addition to the computing requirements. This paper recommends a mechanism for selecting the best public cloud service at the levels of Infrastructure as a Service (IaaS) and Platform as a Service (PaaS). A systematic framework and associated workflow include cloud service filtration, solution generation, evaluation, and selection of public cloud services. Specifically, we propose the following: a hierarchical information model for integrating heterogeneous cloud information from different providers and a corresponding cloud information collecting mechanism; a cloud service classification model for categorizing and filtering cloud services and an application requirement schema for providing rules for creating application-specific configuration solutions; and a preference-aware solution evaluation mode for evaluating and recommending solutions according to the preferences of application providers. To test the proposed framework and methodologies, a cloud service advisory tool prototype was developed after which relevant experiments were conducted. The results show that the proposed system collects/updates/records the cloud information from multiple mainstream public cloud services in real-time, generates feasible cloud configuration solutions according to user specifications and acceptable cost predication, assesses solutions from multiple aspects (e.g., computing capability, potential cost and Service Level Agreement, SLA) and offers rational recommendations based on user preferences and practical cloud provisioning; and visually presents and compares solutions through an interactive web Graphical User Interface (GUI).

  15. A Service Brokering and Recommendation Mechanism for Better Selecting Cloud Services

    Science.gov (United States)

    Gui, Zhipeng; Yang, Chaowei; Xia, Jizhe; Huang, Qunying; Liu, Kai; Li, Zhenlong; Yu, Manzhu; Sun, Min; Zhou, Nanyin; Jin, Baoxuan

    2014-01-01

    Cloud computing is becoming the new generation computing infrastructure, and many cloud vendors provide different types of cloud services. How to choose the best cloud services for specific applications is very challenging. Addressing this challenge requires balancing multiple factors, such as business demands, technologies, policies and preferences in addition to the computing requirements. This paper recommends a mechanism for selecting the best public cloud service at the levels of Infrastructure as a Service (IaaS) and Platform as a Service (PaaS). A systematic framework and associated workflow include cloud service filtration, solution generation, evaluation, and selection of public cloud services. Specifically, we propose the following: a hierarchical information model for integrating heterogeneous cloud information from different providers and a corresponding cloud information collecting mechanism; a cloud service classification model for categorizing and filtering cloud services and an application requirement schema for providing rules for creating application-specific configuration solutions; and a preference-aware solution evaluation mode for evaluating and recommending solutions according to the preferences of application providers. To test the proposed framework and methodologies, a cloud service advisory tool prototype was developed after which relevant experiments were conducted. The results show that the proposed system collects/updates/records the cloud information from multiple mainstream public cloud services in real-time, generates feasible cloud configuration solutions according to user specifications and acceptable cost predication, assesses solutions from multiple aspects (e.g., computing capability, potential cost and Service Level Agreement, SLA) and offers rational recommendations based on user preferences and practical cloud provisioning; and visually presents and compares solutions through an interactive web Graphical User Interface (GUI

  16. The Importance of Perceived Service Value in Retail Banking Services

    OpenAIRE

    Aleksandra Pisnik; Jasmina Dlačić; Borut Milfelner

    2016-01-01

    Purpose – In many industries, perceived service value is found to be a significant mediator between perceived service quality and customer satisfaction and loyalty. Therefore, this paper aims to test a conceptual model of perceived service value with its antecedents, such as perceived price and perceived service quality, and consequences, customer satisfaction and loyalty, in the retail banking industry. Design/Methodology/Approach – For the empirical study, a measurement instrument was d...

  17. Quality Service Standard of Food and Beverage Service Staff in Hotel

    OpenAIRE

    Thanasit Suksutdhi

    2014-01-01

    This survey research aims to study the standard of service quality of food and beverage service staffs in hotel business by studying the service standard of three sample hotels, Siam Kempinski Hotel Bangkok, Four Seasons Resort Chiang Mai, and Banyan Tree Phuket. In order to find the international service standard of food and beverage service, triangular research, i.e. quantitative, qualitative, and survey were employed. In this research, questionnaires and in-depth interview were used for ge...

  18. Customer Satisfaction in Internal Customer Service : Case: Abloy Oy Internal Customer Service

    OpenAIRE

    Turunen, Susanna

    2011-01-01

    ABSTRACT Turunen, Susanna Marita 2011. Customer Satisfaction in Internal Customer Service. Case: Abloy Oy Internal Customer Service. Master’s thesis. Kemi-Tornio University of Applied Sciences. Business and Culture. Pages 73. Appendix 1. This thesis discusses and studies service quality and customer satisfaction in internal customer service. The main objective is to find out what the service quality level in the internal customer service at Abloy Oy is and whether there exists a diffe...

  19. Analyzing e-service quality in service-based website by E-SERVQUAL

    Directory of Open Access Journals (Sweden)

    Babak Nemati

    2012-04-01

    Full Text Available Over the past two decades, two-way communication via web-based exchanges has been a popular method for different activities such as electronic transaction, publication, broadcasting, and other service applications. However, it is always necessary to measure the performance quality of web services using different technique such as e-SERVQUAL model. The proposed study of this paper uses this technique for measuring the quality of Iranian university e-services. The proposed study distributes a standard questionnaire among students who use this service through internet. The results indicate that only efficiency and online service quality in the e-service system are desirable. Managerial implications are represented.

  20. Applying Importance-Performance Analysis as a Service Quality Measure in Food Service Industry

    Directory of Open Access Journals (Sweden)

    Gwo-Hshiung Tzeng

    2011-09-01

    Full Text Available As the global economy becomes a service oriented economy, food service accounts for over 20% of service revenue, with an annual growth rate of more than 3%. Compared to physical products, service features are invisible, and the production and sale occurs simultaneously. There is not easy to measure the performance of service. Therefore, the service quality of catering services is considered to be an important topic of service management. According Market Intelligence & Consulting Institute (MIC to apply blog text analyzing to point out top 10 restaurants of blog in Taiwan, what it’s popular restaurant in food service industries. This paper attempts to identify both the importance and performance of restaurant service quality in the Taiwan food service industry using the SERVQUAL and IPA model. We can conclude with certainty that three methods (SERVQUAL, IF and IPA are able to explain significant amount of service quality. At the same time, the service quality factors of IPA model had more comprehensive consideration in comparison to those of SERVQUAL and IF.

  1. Service Modularity and Architecture

    DEFF Research Database (Denmark)

    Brax, Saara A.; Bask, Anu; Hsuan, Juliana

    2017-01-01

    , platform-based and mass-customized service business models, comparative research designs, customer perspectives and service experience, performance in context of modular services, empirical evidence of benefits and challenges, architectural innovation in services, modularization in multi-provider contexts......Purpose: Services are highly important in a world economy which has increasingly become service driven. There is a growing need to better understand the possibilities for, and requirements of, designing modular service architectures. The purpose of this paper is to elaborate on the roots...... of the emerging research stream on service modularity, provide a concise overview of existing work on the subject, and outline an agenda for future research on service modularity and architecture. The articles in the special issue offer four diverse sets of research on service modularity and architecture. Design...

  2. 78 FR 63521 - Product Change-Parcel Select & Parcel Return Service Negotiated Service Agreement

    Science.gov (United States)

    2013-10-24

    ... Request of the United States Postal Service to Add Parcel Select & Parcel Return Service Contract 5 to... POSTAL SERVICE Product Change--Parcel Select & Parcel Return Service Negotiated Service Agreement.... SUPPLEMENTARY INFORMATION: The United States Postal Service[supreg] hereby gives notice that, pursuant to 39 U.S...

  3. MODELLING AND VERIFICATION OF KITSAT PACKET COMMUNICATION PROTOCOLS

    Directory of Open Access Journals (Sweden)

    Young-Ro Lee

    1996-06-01

    Full Text Available In this paper, in order to verify KITSAT 1/2 packet communication protocols, we model the AX.25 protocol and PACSAT protocol by using an extended Petri net and then verify the correctness, boundedness, liveness and deadlock freeness of packet protocols by utilizing reachability trees.

  4. The RERS 2017 Challenge and Workshop

    NARCIS (Netherlands)

    Jasper, Marc; Fecke, Maximilian; Steffen, Bernhard; Schordan, Markus; Meijer, Jeroen; Pol, Jaco van de; Howar, Falk; Siegel, Stephen F.

    RERS is an annual verification challenge that focuses on LTL and reachability properties of reactive systems. In 2017, RERS was extended to a one day workshop that in addition to the original challenge program also featured an invited talk about possible future developments. As a satellite of ISSTA

  5. Compositional Performability Evaluation for STATEMATE

    NARCIS (Netherlands)

    Böde, Eckard; Herbstritt, Marc; Hermanns, Holger; Johr, Sven; Peikenkamp, Thomas; Pulungan, Reza; Wimmer, Ralf; Becker, Bernd

    2006-01-01

    This paper reports on our efforts to link an industrial state-of-the-art modelling tool to academic state-of-the-art analysis algorithms. In a nutshell, we enable timed reachability analysis of uniform continuous-time Markov decision processes, which are generated from STATEMATE models. We give a

  6. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    2016-01-06

    Jan 6, 2016 ... Home; Journals; Pramana – Journal of Physics; Volume 86; Issue 2. Prospects of experimentally reachable beyond Standard Model physics in inverse see-saw motivated SO(10) GUT. Ram Lal Awasthi. Special: Supersymmetric Unified Theories and Higgs Physics Volume 86 Issue 2 February 2016 pp 223- ...

  7. Marketing Your Library Program--More than a PR Campaign.

    Science.gov (United States)

    Brown, Gerald R.

    In this workshop, the concept of marketing was applied to school library media programs by examining the relationship between library media programs, the marketing plan, public relations (PR), and promotion. Reachable goals, targeting the audience, advertising, and motivation and commitment of the staff were also considered, and successful…

  8. AllotmentDecnService

    Data.gov (United States)

    Department of Veterans Affairs — The AllotmentDecnService is a service supporting operations to access/update data related to (Compensation and Pension) Awards. This service also supports business...

  9. Role Coastumer Service PT. Bank Danamon Provide Service to Customers

    OpenAIRE

    ", NURJANAH; Hardani, Ninda

    2015-01-01

    PT. Bank Danamon Pekanbaru is the bank engaged in banking goods and services that always seeks to prioritize the satisfaction of its customers. The employee on duty and deal directly with the customer in providing services commonly known as customer service that are required to have the ability to serve customers accurately and quickly and have good communication skills. The purpose of this study was to determine the role of customer service as a receptionist, Deskman, salesman, customer rela...

  10. Advanced web services

    CERN Document Server

    Bouguettaya, Athman; Daniel, Florian

    2013-01-01

    Web services and Service-Oriented Computing (SOC) have become thriving areas of academic research, joint university/industry research projects, and novel IT products on the market. SOC is the computing paradigm that uses Web services as building blocks for the engineering of composite, distributed applications out of the reusable application logic encapsulated by Web services. Web services could be considered the best-known and most standardized technology in use today for distributed computing over the Internet. This book is the second installment of a two-book collection covering the state-o

  11. QUALITY OF SERVICE BASED WEB SERVICE SELECTION: AN EVALUATION OF TECHNIQUES

    Directory of Open Access Journals (Sweden)

    Rigga Widar Atmagi

    2012-07-01

    Full Text Available Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 st1\\:*{behavior:url(#ieooui } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} In service oriented computing, web services are the basic construct that aims to facilitate building of business application in a more flexible and interoperable manner for enterprise collaboration. One of the most promising advantages of web service technology is the possibility of creating added-value services by combining existing ones. A key step for composing and executing services lies in the selection of the individual services to use. Much attention has been devoted to appropriate selection of service functionalities, but also the non-functional properties of the services play a key role. A web service selection technique must take as much as possible the important influencing aspects into account to the selection processes in order to minimize the selection efforts. This paper evaluates several web service selection techniques published in literature with the focus on their contributions to web service selection. The evaluation results may be used as a basis for improving web service selection techniques that may simplify the selection tasks.

  12. The Strategic Use of Service Design for Leaders in Service Organizations

    Directory of Open Access Journals (Sweden)

    Judith Gloppen

    2011-12-01

    Full Text Available There is a growing interest among scholars, practitioners and organizations as to how design may benefit management, particularly when this happens in a service context. In this exploratory qualitative study, I investigate such a multi-disciplinary intersection with the aim of better understanding how service design may be of value for leaders in service organizations on a strategic level. The research draws on a service design approach called AT-ONE. Addressed are ways that the strategic use of service design may influence attitudes and transformation in service organizations. The study presents views from the designers, implementers and users of this approach, supported by participant observation and interviews. This was done through in-depth qualitative interviews with the AT-ONE project members and designer, with the service design professional company involved, and leaders from the businesses participating in the project and workshop sessions. These were observed by the researcher. Drawing on the findings of this exploratory study, some implications for the field of service design management at the corporate level are offered.

  13. Quality Management of Services

    Directory of Open Access Journals (Sweden)

    Yuriy I. Dreizis

    2016-10-01

    Full Text Available It is shown that services take the leading place in modern, post-industrial society. The world economy has passed the period of deindustrialization and became service economy. Fundamentals of service economy are not physical goods, but service. The special nature of service and its property demands the mechanism of management, other than physical goods. Ensuring necessary quality of the provided service is one of the main problems, which is put before the organization by peculiar properties of service. Therefore, quality management of service is the most important branch of management of the modern organization.

  14. 13 CFR 130.340 - SBDC services and restrictions on service.

    Science.gov (United States)

    2010-01-01

    ..., Training and Specialized Services, concerning the formation, financing, management and operation of small... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false SBDC services and restrictions on service. 130.340 Section 130.340 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION SMALL...

  15. Forensic mental health services: Current service provision and planning for a prison mental health service in the Eastern Cape

    Directory of Open Access Journals (Sweden)

    Kiran Sukeri

    2016-05-01

    Full Text Available Objectives: No research data exists on forensic psychiatric service provision in the Eastern Cape, Republic of South Africa. The objective of this research was to assess current forensic psychiatric service provision and utilisation rates at Fort England Hospital. This is important in improving and strengthening the service. A related objective was to develop a model for a provincial prison mental health service. Methodology: This study is a situational analysis of an existing forensic psychiatric service in the Eastern Cape. The design of the study was cross sectional. An audit questionnaire was utilised to collate quantitative data, which was submitted to Fort England Hospital, Grahamstown. A proposed prison mental health service was developed utilising prevalence rates of mental illness among prisoners to calculate bed and staff requirements for an ambulatory and in-patient service. Results: During the study period a total of 403 remand detainees were admitted to the forensic psychiatry division of Fort England Hospital. The average length of stay was 494 days and the bed utilisation rate was determined at 203.54%. We estimate that to provide a provincial prison mental health service to treat psychotic illnesses and major depression the province requires a 52 bedded facility and a total staff complement of approximately 31. Conclusions: Forensic psychiatric services include the assessment, management and treatment of mentally disordered persons in conflict with the law and prisoners requiring psychiatric assessments. The Eastern Cape Province does not have plans or policies to assess and manage mentally ill offenders, resulting in an increased load on available services. We recommend that an inter-departmental task team, which includes Health, Justice and Constitutional Development and Correctional Services, should be established in the province, to develop a strategy to assist in the development of an effective and efficient forensic

  16. At your service!

    CERN Multimedia

    Laëtitia Pedroso

    2011-01-01

    Everyone, at some time or another, has needed to get a new key cut, or to have an office painted or to get their hands on a document without knowing who to ask. People who have been at CERN for many years obviously don't experience this very often, but picking their way through the Laboratory's many services can be a real challenge for users and new arrivals. The Service Desk is now there to help !   The service desk team in Building 55. The new Service Desk is a one-stop shop for information on CERN. Physically located in Building 55 it has a single telephone number (77777) and a web portal (the CERN service portal) that can be accessed 24/7, providing all the answers to your logistical questions. The IT and GS Departments have been collaborating on this project for nearly a year and a half. Today, all the services offered by the GS and IT Departments are listed in the CERN service portal. "The CERN service portal is simple to use and works just like a key-word search engine. A list of r...

  17. Exploring Modularity in Services

    DEFF Research Database (Denmark)

    Avlonitis, Viktor; Hsuan, Juliana

    2017-01-01

    the effects of modularity and integrality on a range of different analytical levels in service architectures. Taking a holistic approach, the authors synthesize and empirically deploy a framework comprised of the three most prevalent themes in modularity and service design literature: Offering (service...... insights on the mirroring hypothesis of modularity theory to services. Originality/value The paper provides a conceptualization of service architectures drawing on service design, modularity, and market relationships. The study enriches service design literature with elements from modularity theory...

  18. The Climate Services Partnership (CSP): Working Together to Improve Climate Services Worldwide

    Science.gov (United States)

    Zebiak, S.; Brasseur, G.; Members of the CSP Coordinating Group

    2012-04-01

    Throughout the world, climate services are required to address urgent needs for climate-informed decision-making, policy and planning. These needs were explored in detail at the first International Conference on Climate Services (ICCS), held in New York in October 2011. After lengthy discussions of needs and capabilities, the conference culminated in the creation of the Climate Services Partnership (CSP). The CSP is an informal interdisciplinary network of climate information users, providers, donors and researchers interested in improving the provision and development of climate services worldwide. Members of the Climate Services Partnership work together to share knowledge, accelerate learning, develop new capacities, and establish good practices. These collaborative efforts will inform and support the evolution and implementation of the Global Framework for Climate Services. The Climate Services Partnership focuses its efforts on three levels. These include: 1. encouraging and sustaining connections between climate information providers, users, donors, and researchers 2. gathering, synthesizing and disseminating current knowledge on climate services by way of an online knowledge management platform 3. generating new knowledge on critical topics in climate service development and provision, through the creation of focused working groups on specific topics To date, the Climate Services Partnership has made progress on all three fronts. Connections have been fostered through outreach at major international conferences and professional societies. The CSP also maintains a website and a monthly newsletter, which serves as a resource for those interested in climate services. The second International Conference on Climate Services (ICCS2) will be held in Berlin in September. The CSP has also created a knowledge capture system that gathers and disseminates a wide range of information related to the development and provision of climate services. This includes an online

  19. Marketing Youth Services.

    Science.gov (United States)

    Dimick, Barbara

    1995-01-01

    Marketing techniques in youth services are useful for designing programs, collections, and services and for determining customer needs. The marketing mix--product, place, price, and practice--provides a framework for service analysis. (AEF)

  20. An Automatic Web Service Composition Framework Using QoS-Based Web Service Ranking Algorithm.

    Science.gov (United States)

    Mallayya, Deivamani; Ramachandran, Baskaran; Viswanathan, Suganya

    2015-01-01

    Web service has become the technology of choice for service oriented computing to meet the interoperability demands in web applications. In the Internet era, the exponential addition of web services nominates the "quality of service" as essential parameter in discriminating the web services. In this paper, a user preference based web service ranking (UPWSR) algorithm is proposed to rank web services based on user preferences and QoS aspect of the web service. When the user's request cannot be fulfilled by a single atomic service, several existing services should be composed and delivered as a composition. The proposed framework allows the user to specify the local and global constraints for composite web services which improves flexibility. UPWSR algorithm identifies best fit services for each task in the user request and, by choosing the number of candidate services for each task, reduces the time to generate the composition plans. To tackle the problem of web service composition, QoS aware automatic web service composition (QAWSC) algorithm proposed in this paper is based on the QoS aspects of the web services and user preferences. The proposed framework allows user to provide feedback about the composite service which improves the reputation of the services.

  1. 75 FR 54445 - Senior Executive Service; Financial Management Service Performance Review Board (PRB)

    Science.gov (United States)

    2010-09-07

    ..., Management (Chief Financial Officer). Alfred J. Kopec, Assistant Commissioner, Business Architecture. Sheryl... DEPARTMENT OF THE TREASURY Fiscal Service Senior Executive Service; Financial Management Service Performance Review Board (PRB) AGENCY: Financial Management Service, Fiscal Service, Treasury. ACTION: Notice...

  2. Service design as an approach to new service development : reflections and futures studies

    OpenAIRE

    Yu, Eun; Sangiorgi, Daniela

    2014-01-01

    This paper illustrates how, although Service Design has been described as evolving from a narrow description of a phase in New Service Development (NSD) to an approach to Service Innovation, the current Service Design research is still focused on the initial stages of NSD. Comparing existing Service Design research with foundational knowledge on NSD, the authors have proposed two complementary directions for future Service Design studies: 1) the expansion of ‘service design as a phase’ to inv...

  3. 75 FR 13051 - Presumptions of Service Connection for Persian Gulf Service

    Science.gov (United States)

    2010-03-18

    ... response to ``RIN 2900-AN24--Presumptions of Service Connection for Persian Gulf Service.'' Copies of...) Cardiovascular signs or symptoms. (12) Abnormal weight loss. (13) Menstrual disorders. (c) Presumptive service...

  4. Optimal Service Distribution in WSN Service System Subject to Data Security Constraints

    Science.gov (United States)

    Wu, Zhao; Xiong, Naixue; Huang, Yannong; Gu, Qiong

    2014-01-01

    Services composition technology provides a flexible approach to building Wireless Sensor Network (WSN) Service Applications (WSA) in a service oriented tasking system for WSN. Maintaining the data security of WSA is one of the most important goals in sensor network research. In this paper, we consider a WSN service oriented tasking system in which the WSN Services Broker (WSB), as the resource management center, can map the service request from user into a set of atom-services (AS) and send them to some independent sensor nodes (SN) for parallel execution. The distribution of ASs among these SNs affects the data security as well as the reliability and performance of WSA because these SNs can be of different and independent specifications. By the optimal service partition into the ASs and their distribution among SNs, the WSB can provide the maximum possible service reliability and/or expected performance subject to data security constraints. This paper proposes an algorithm of optimal service partition and distribution based on the universal generating function (UGF) and the genetic algorithm (GA) approach. The experimental analysis is presented to demonstrate the feasibility of the suggested algorithm. PMID:25093346

  5. Delivering Service Quality in Alcohol Treatment: A Qualitative Comparison of Public and Private Treatment Centres by Service Users and Service Providers

    Science.gov (United States)

    Resnick, Sheilagh M.; Griffiths, Mark D.

    2012-01-01

    In the UK, quality of care has now been placed at the centre of the National Health Service (NHS) modernisation programme. To date, there has been little research on the service quality delivery of alcohol treatment services from the perspective of both the service user and service provider. Therefore, this qualitative study explored the…

  6. Telecommunications Relay Services

    Science.gov (United States)

    ... Home » Health Info » Hearing, Ear Infections, and Deafness Telecommunications Relay Services On this page: What are telecommunication ... additional information about telecommunication relay services? What are telecommunication relay services? Title IV of the Americans with ...

  7. Medical Virtual Public Services

    Directory of Open Access Journals (Sweden)

    Iulia SURUGIU

    2008-01-01

    Full Text Available The healthcare enterprises are very disconnected. This paper intends to propose a solution that will provide citizens, businesses and medical enterprises with improved access to medical virtual public services. Referred medical services are based on existing national medical Web services and which support medically required services provided by physicians and supplementary health care practitioners, laboratory services and diagnostic procedures, clinics and hospitals’ services. Requirements and specific rules of these medical services are considered, and personalization of user preferences will to be supported. The architecture is based on adaptable process management technologies, allowing for virtual services which are dynamically combined from existing national medical services. In this way, a comprehensive workflow process is set up, allowing for service-level agreements, an audit trail and explanation of the process to the end user. The process engine operates on top of a virtual repository, providing a high-level semantic view of information retrieved from heterogeneous information sources, such as national sources of medical services. The system relies on a security framework to ensure all high-level security requirements are met. System’s architecture is business oriented: it focuses on Service Oriented Architecture - SOA concepts, asynchronously combining Web services, Business Process Management – BPM rules and BPEL standards.

  8. Service mining framework and application

    CERN Document Server

    Chang, Wei-Lun

    2014-01-01

    The shifting focus of service from the 1980s to 2000s has proved that IT not only lowers the cost of service but creates avenues to enhance and increase revenue through service. The new type of service, e-service, is mobile, flexible, interactive, and interchangeable. While service science provides an avenue for future service researches, the specific research areas from the IT perspective still need to be elaborated. This book introduces a novel concept-service mining-to address several research areas from technology, model, management, and application perspectives. Service mining is defined as "a systematical process including service discovery, service experience, service recovery, and service retention to discover unique patterns and exceptional values within the existing services." The goal of service mining is similar to data mining, text mining, or web mining, and aims to "detect something new" from the service pool. The major difference is the feature of service is quite distinct from the mining targe...

  9. Web Service

    Science.gov (United States)

    ... topic data in XML format. Using the Web service, software developers can build applications that utilize MedlinePlus health topic information. The service accepts keyword searches as requests and returns relevant ...

  10. Business service modeling for the service-oriented enterprise

    NARCIS (Netherlands)

    Jayasinghe Arachchig, J.; Weigand, H.; Jeusfeld, M.A.

    2012-01-01

    Service-oriented architectures are the upcoming business standard for realizing enterprise information systems, thus creating a need for analysis and design methods that are truly service-oriented. Most research on this topic so far takes a strict software engineering perspective. For a proper

  11. Service level status-a new real-time status display for IT services

    Energy Technology Data Exchange (ETDEWEB)

    Lopienski, S [IT Department, FIO group CERN, European Organization for Nuclear Research, 1211 Geneve 23 (Switzerland)], E-mail: Sebastian.Lopienski@cern.ch

    2008-07-15

    Nowadays, IT departments provide, and people use, computing services of an increasingly heterogeneous nature. There is thus a growing need for a status display that groups these different services and reports their status and availability in a uniform way. The Service Level Status (SLS) system addresses these needs by providing a web-based display that dynamically shows availability, basic information and statistics about various IT services, as well as the dependencies between them. This paper first introduces the requirements SLS had to meet, and the main concepts behind it, like service availability and status, Key Performance Indicators (KPIs), sub/meta-services, and service dependencies. It then describes the SLS system architecture, and some interesting implementation details, such as the usage of XML Schemas. Since clear visualization of service availability and status is one of the main goals of SLS, emphasis is put on describing the intuitive web-based user interface.

  12. Service level status-a new real-time status display for IT services

    International Nuclear Information System (INIS)

    Lopienski, S

    2008-01-01

    Nowadays, IT departments provide, and people use, computing services of an increasingly heterogeneous nature. There is thus a growing need for a status display that groups these different services and reports their status and availability in a uniform way. The Service Level Status (SLS) system addresses these needs by providing a web-based display that dynamically shows availability, basic information and statistics about various IT services, as well as the dependencies between them. This paper first introduces the requirements SLS had to meet, and the main concepts behind it, like service availability and status, Key Performance Indicators (KPIs), sub/meta-services, and service dependencies. It then describes the SLS system architecture, and some interesting implementation details, such as the usage of XML Schemas. Since clear visualization of service availability and status is one of the main goals of SLS, emphasis is put on describing the intuitive web-based user interface

  13. SERVICE QUALITY DIMENSIONS AS PREDICTORS OF PERCEIVED SERVICE QUALITY IN RETAIL ENVIRONMENT

    OpenAIRE

    Jelčić, Sandra

    2017-01-01

    The purpose of this paper is to determine service quality dimensions as predictors of perceived service quality in retail environment. Recent studies emphasised the multidimensional nature of service quality and multidimensional service quality measurement models. Literature reveals that SERVQUAL (Parasuraman et al. 1988) and RSQS (Dabholkar et al. 1996) are the most common instruments used to measure service quality in retail. Considering different market environments neither SERVQUAL nor RS...

  14. An anthropology of services toward a practice approach to designing services

    CERN Document Server

    Blomberg, Jeanette

    2015-01-01

    This book explores the possibility for an anthropology of services and outlines a practice approach to designing services. The reader is taken on a journey that Blomberg and Darrah have been on for the better part of a decade from their respective positions helping to establish a services research group within a large global enterprise and an applied anthropology master's program at a Silicon Valley university. They delve into the world of services to understand both how services are being conceptualized today and the possible benefits that might result from taking an anthropological view on s

  15. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    pp 223-229 Special: Supersymmetric Unified Theories and Higgs Physics. Prospects of experimentally reachable beyond Standard Model physics in inverse see-saw motivated SO(10) GUT · Ram Lal Awasthi · More Details Abstract Fulltext PDF. The grand unification theories based on SO(10) gauge group have been at the ...

  16. Verifying generalized soundness for workflow nets

    NARCIS (Netherlands)

    Hee, van K.M.; Oanea, O.I.; Sidorova, N.; Voorhoeve, M.; Virbitskaite, I.; Voronkov, A.

    2007-01-01

    We improve the decision procedure from [10] for the problem of generalized soundness of workflow nets. A workflow net is generalized sound iff every marking reachable from an initial marking with k tokens on the initial place terminates properly, i.e. it can reach a marking with k tokens on the

  17. Recursive Ping-Pong Protocols

    DEFF Research Database (Denmark)

    Huttel, Hans; Srba, Jiri

    2004-01-01

    and bisimulation checking. Our main result is that our channel-free and memory-less calculus is Turing powerful, assuming that at least three principals are involved. We also investigate the expressive power of the calculus in the case of two participants. Here, our main results are that reachability and, under...

  18. The 'Sneaky Snake' reaches the parts other vehicles cannot

    International Nuclear Information System (INIS)

    Anon.

    1988-01-01

    The Articulated Transporter/Manipulator system (ATMS) is a new multi-segmented, semi-autonomous transporter under development in the USA. It will be able to negotiate complex, obstacle strewn environments not reachable by legged, wheeled or tracked vehicles. Ultimately it will be used for surveillance, inspection, maintenance and emergency tasks. (U.K.)

  19. Processo Orçamentário e Criação de Reservas em uma Instituição Hospitalar

    Directory of Open Access Journals (Sweden)

    Andson Braga de Aguiar

    2010-01-01

    maintains a strict budget process. Given these characteristics, it was noted that managers have a tendency to create reserves, especially by reason of (i submit budgets easily reachable, (ii agree that the budget targets did not require care in controlling costs and (iii agree that the budget goals are easily attainable.

  20. Dynamic Mobile IP routers in ad hoc networks

    NARCIS (Netherlands)

    Kock, B.A.; Schmidt, J.R.

    2005-01-01

    This paper describes a concept combining mobile IP and ad hoc routing to create a robust mobile network. In this network all nodes are mobile and globally and locally reachable under the same IP address. Essential for implementing this network are the dynamic mobile IP routers. They act as gateways

  1. Rethinking Library Service: Improving the User Experience with Service Blueprinting

    Science.gov (United States)

    Pretlow, Cassi; Sobel, Karen

    2015-01-01

    Service blueprinting is a process that businesses use for analyzing and improving service. Originally presented in the Harvard Business Review in 1984, it has retained a strong following ever since. At present, it is experiencing a revival at numerous academic institutions. The authors of this article present the process of service blueprinting.…

  2. Debugging and Logging Services for Defence Service Oriented Architectures

    Science.gov (United States)

    2012-02-01

    Service A software component and callable end point that provides a logically related set of operations, each of which perform a logical step in a...important to note that in some cases when the fault is identified to lie in uneditable code such as program libraries, or outsourced software services ...debugging is limited to characterisation of the fault, reporting it to the software or service provider and development of work-arounds and management

  3. Bringing service design to manufacturing companies: integrating PSS and service design approaches

    DEFF Research Database (Denmark)

    Costa, Nina; Patrício, Lia; Morelli, Nicola

    2018-01-01

    in a manufacturing industry. This paper details how the application supports the design of product–service system solutions from the exploration to the implementation stages, highlighting the physical evidence of service, and contributes to advance design research at the intersection of PSS and Service Design.......Manufacturing companies increasingly try to innovate in their offers to consumers by creating more complete solutions that combine product and service components. However, shifting from a product-centric perspective to a solution-oriented perspective is challenging. The present study adopted...... a design research methodology and built on Service-Dominant logic, integrating the human-oriented perspective of Service Design with an organizational network-oriented perspective of Product–Service System. It creates a new Integrative PSS approach, evolves design models, and provides an application...

  4. Designing Crop Simulation Web Service with Service Oriented Architecture Principle

    Science.gov (United States)

    Chinnachodteeranun, R.; Hung, N. D.; Honda, K.

    2015-12-01

    Crop simulation models are efficient tools for simulating crop growth processes and yield. Running crop models requires data from various sources as well as time-consuming data processing, such as data quality checking and data formatting, before those data can be inputted to the model. It makes the use of crop modeling limited only to crop modelers. We aim to make running crop models convenient for various users so that the utilization of crop models will be expanded, which will directly improve agricultural applications. As the first step, we had developed a prototype that runs DSSAT on Web called as Tomorrow's Rice (v. 1). It predicts rice yields based on a planting date, rice's variety and soil characteristics using DSSAT crop model. A user only needs to select a planting location on the Web GUI then the system queried historical weather data from available sources and expected yield is returned. Currently, we are working on weather data connection via Sensor Observation Service (SOS) interface defined by Open Geospatial Consortium (OGC). Weather data can be automatically connected to a weather generator for generating weather scenarios for running the crop model. In order to expand these services further, we are designing a web service framework consisting of layers of web services to support compositions and executions for running crop simulations. This framework allows a third party application to call and cascade each service as it needs for data preparation and running DSSAT model using a dynamic web service mechanism. The framework has a module to manage data format conversion, which means users do not need to spend their time curating the data inputs. Dynamic linking of data sources and services are implemented using the Service Component Architecture (SCA). This agriculture web service platform demonstrates interoperability of weather data using SOS interface, convenient connections between weather data sources and weather generator, and connecting

  5. [Urban ecosystem services: A review].

    Science.gov (United States)

    Mao, Qi-zheng; Huang, Gan-lin; Wu, Jian-guo

    2015-04-01

    Maintaining and improving ecosystem services in urban areas and human well-being are essential for sustainable development and therefore constitute an important topic in urban ecology. Here we reviewed studies on ecosystem services in urban areas. Based on the concept and classification of urban ecosystem services, we summarized characteristics of urban ecosystem services, including the human domination, high demand of ecosystem services in urban areas, spatial heterogeneity and temporal dynamics of ecosystem services supply and demand in urban areas, multi-services of urban green infrastructures, the socio-economic dimension of ecosystem services supply and ecosystem disservices in urban areas. Among different urban ecosystem services, the regulating service and cultural service are particularly indispensable to benefit human health. We pointed out that tradeoffs among different types of ecosystem services mostly occur between supportive service and cultural service, as well as regulating service and cultural service. In particular, we emphasized the relationship between landscape design (i.e. green infrastructure) and ecosystem services supply. Finally, we discussed current gaps to link urban ecosystem services studies to landscape design and management and pointed out several directions for future research in urban ecosystem services.

  6. IT Service Management Architectures

    DEFF Research Database (Denmark)

    Tambo, Torben; Filtenborg, Jacob

    2018-01-01

    IT service providers tend to view their services as quasi-embedded in the client organisations infrastructure. Therefore, IT service providers lack a full picture of being an organisation with its own enterprise archicture. By systematically developing an enterprise architecture using the unifica...... the unification operating model, IT service providers can much more efficient develop relevant service catalogues with connected reporting services related to SLA's and KPI's based on ITIL and newer frameworks like SIAM....

  7. Service Level Status

    CERN Multimedia

    Lopienski, S

    2007-01-01

    Nowadays, IT departments provide, and people use, computing services of an increasingly heterogeneous nature. There is thus a growing need for a status display that groups these different services and reports status and availability in a uniform way. The Service Level Status (SLS) system addresses these needs by providing a web-based display that dynamically shows availability, basic information and statistics about various IT services, as well as the dependencies between them.

  8. Development of an Innovation Model Based on a Service-Oriented Product Service System (PSS

    Directory of Open Access Journals (Sweden)

    Seungkyum Kim

    2015-10-01

    Full Text Available Recently, there have been many attempts to cope with increasingly-diversified and ever-changing customer needs by combining products and services that are critical components of innovation models. Although not only manufacturers, but also service providers, try to integrate products and services, most of the previous studies on Product Service System (PSS development deal with how to effectively integrate services into products from the product-centric point of view. Services provided by manufacturers’ PSSes, such as delivery services, training services, disposal services, and so on, offer customers ancillary value, whereas products of service providers’ PSSes enrich core value by enhancing the functionality and quality of the service. Thus, designing an effective PSS development process from the service-centric point of view is an important research topic. Accordingly, the purpose of this paper is to propose a service-oriented PSS development process, which consists of four stages: (1 strategic planning; (2 idea generation and selection; (3 service design; and (4 product development. In the proposed approach, the PSS development project is initiated and led by a service provider from a service-centric point of view. From the perspective of methodology, customer needs are converted into product functions according to Quality Function Deployment (QFD, while Analytic Hierarchy Process (AHP is employed to prioritize the functions. Additionally, this paper illustrates a service-oriented PSS development that demonstrates the application of the proposed process. The proposed process and illustration are expected to serve as a foundation for research on service-oriented PSS development and as a useful guideline for service providers who are considering the development of a service-oriented PSS.

  9. From service-oriented architecture to service-oriented enterprise

    NARCIS (Netherlands)

    van Sinderen, Marten J.; Cordeiro, J.; Ivanov, I.; Shishkov, Boris

    2009-01-01

    Service-Oriented Architecture (SOA) was originally motivated by enterprise demands for better business-technology alignment and higher flexibility and reuse. SOA evolved from an initial set of ideas and principles to Web services (WS) standards now widely accepted by industry. The next phase of SOA

  10. Service Learning for Improvement of Customer Service Education in LIS

    Science.gov (United States)

    Colón-Aguirre, Mónica

    2017-01-01

    This work explores the ways in which academic librarians specializing in areas related to user services consider the courses they took as part of obtaining their library and information science (LIS) degree prepared them to deal with issues of customer service in their current work. Effective customer service is a central aspect of accomplishing…

  11. Library Services Online: Introducing Library Services for Online MBA Classes

    Science.gov (United States)

    Slavin, Laura C.

    2015-01-01

    In this article, a librarian at Lincoln Memorial University creates library services for an MBA program offered entirely online that is in the early stages of development. The library services include a subject guide and 4 tutorials that will be added to the MBA online orientation. Other services include offering online office hours and…

  12. GAIA Service Catalog: A Framework for the Construction of IT Service Catalogs

    Directory of Open Access Journals (Sweden)

    TACONI, L. H.

    2014-12-01

    Full Text Available The high amount of IT services offered to organizations for boosting and maintaining their business goals makes it difficult to determine the quantity, description and the attributes of these services. This paper presents a framework to support the construction of IT Service Catalogs. The framework consists of a diagnostic assessment questionnaire, a maturity model and a set of services that guide the organization in the construction of an IT Service Catalog.

  13. Military service and military vocational training effects on post-service earnings

    OpenAIRE

    Bolin, Phil Warren

    1980-01-01

    Approved for public release; distribution is unlimited. The influence of military service and military vocational training on post-service earnings was analyzed using the National Longitudinal Survey of young men (14-24 years of age in 1966) . When individuals were classified by their propensity to use training neither military service nor military vocational training was a significant determinant of post-service earnings. A disaggregation of the sample IQ revealed that m...

  14. Service Provider Revenue Dependence of Offered Number of Service Classes

    Directory of Open Access Journals (Sweden)

    V. S. Aćimović-Raspopović

    2011-06-01

    Full Text Available In this paper possible applications of responsive pricing scheme and Stackelberg game for pricing telecommunication services with service provider as a leader and users acting as followers are analyzed. We have classified users according to an elasticity criterion into inelastic, partially elastic and elastic users. Their preferences are modelled through utility functions, which describe users’ sensitivity to changes in the quality of service and price. In the proposed algorithm a bandwidth management server is responsible for performing automatic optimal bandwidth allocation to each user’s session while maximizing its expected utility and the overall service provider’s revenue. The pricing algorithm is used for congestion control and more efficient network capacity utilization. We have analyzed different scenarios of the proposed usage-based pricing algorithm. Particularly, the influence of the number of service classes on price setting in terms of service provider’s revenue and total users’ utility maximization are discussed. The model is verified through numerous simulations performed by software that we have developed for that purpose.

  15. A Guideline for Successful Calibration and Uncertainty Analysis for Soil and Water Assessment: A Review of Papers from the 2016 International SWAT Conference

    Directory of Open Access Journals (Sweden)

    Karim C. Abbaspour

    2017-12-01

    Full Text Available Application of integrated hydrological models to manage a watershed’s water resources are increasingly finding their way into the decision-making processes. The Soil and Water Assessment Tool (SWAT is a multi-process model integrating hydrology, ecology, agriculture, and water quality. SWAT is a continuation of nearly 40 years of modeling efforts conducted by the United States Department of Agriculture (USDA Agricultural Research Service (ARS. A large number of SWAT-related papers have appeared in ISI journals, building a world-wide consensus around the model’s stability and usefulness. The current issue is a collection of the latest research using SWAT as the modeling tool. Most models must undergo calibration/validation and uncertainty analysis. Unfortunately, these sciences are not formal subjects of teaching in most universities and the students are often left to their own resources to calibrate their model. In this paper, we focus on calibration and uncertainty analysis highlighting some serious issues in the calibration of distributed models. A protocol for calibration is also highlighted to guide the users to obtain better modeling results. Finally, a summary of the papers published in this special issue is provided in the Appendix.

  16. Event recognition using signal spectrograms in long pulse experiments

    International Nuclear Information System (INIS)

    Gonzalez, J.; Ruiz, M.; Barrera, E.; Arcas, G.; Lopez, J. M.; Vega, J.

    2010-01-01

    As discharge duration increases, real-time complex analysis of the signal becomes more important. In this context, data acquisition and processing systems must provide models for designing experiments which use event oriented plasma control. One example of advanced data analysis is signal classification. The off-line statistical analysis of a large number of discharges provides information to develop algorithms for the determination of the plasma parameters from measurements of magnetohydrodinamic waves, for example, to detect density fluctuations induced by the Alfven cascades using morphological patterns. The need to apply different algorithms to the signals and to address different processing algorithms using the previous results necessitates the use of an event-based experiment. The Intelligent Test and Measurement System platform is an example of architecture designed to implement distributed data acquisition and real-time processing systems. The processing algorithm sequence is modeled using an event-based paradigm. The adaptive capacity of this model is based on the logic defined by the use of state machines in SCXML. The Intelligent Test and Measurement System platform mixes a local multiprocessing model with a distributed deployment of services based on Jini.

  17. Remote information service access system based on a client-server-service model

    Science.gov (United States)

    Konrad, A.M.

    1996-08-06

    A local host computing system, a remote host computing system as connected by a network, and service functionalities: a human interface service functionality, a starter service functionality, and a desired utility service functionality, and a Client-Server-Service (CSS) model is imposed on each service functionality. In one embodiment, this results in nine logical components and three physical components (a local host, a remote host, and an intervening network), where two of the logical components are integrated into one Remote Object Client component, and that Remote Object Client component and the other seven logical components are deployed among the local host and remote host in a manner which eases compatibility and upgrade problems, and provides an illusion to a user that a desired utility service supported on a remote host resides locally on the user`s local host, thereby providing ease of use and minimal software maintenance for users of that remote service. 16 figs.

  18. Parallel-aware, dedicated job co-scheduling within/across symmetric multiprocessing nodes

    Science.gov (United States)

    Jones, Terry R.; Watson, Pythagoras C.; Tuel, William; Brenner, Larry; ,Caffrey, Patrick; Fier, Jeffrey

    2010-10-05

    In a parallel computing environment comprising a network of SMP nodes each having at least one processor, a parallel-aware co-scheduling method and system for improving the performance and scalability of a dedicated parallel job having synchronizing collective operations. The method and system uses a global co-scheduler and an operating system kernel dispatcher adapted to coordinate interfering system and daemon activities on a node and across nodes to promote intra-node and inter-node overlap of said interfering system and daemon activities as well as intra-node and inter-node overlap of said synchronizing collective operations. In this manner, the impact of random short-lived interruptions, such as timer-decrement processing and periodic daemon activity, on synchronizing collective operations is minimized on large processor-count SPMD bulk-synchronous programming styles.

  19. Precise positioning method for multi-process connecting based on binocular vision

    Science.gov (United States)

    Liu, Wei; Ding, Lichao; Zhao, Kai; Li, Xiao; Wang, Ling; Jia, Zhenyuan

    2016-01-01

    With the rapid development of aviation and aerospace, the demand for metal coating parts such as antenna reflector, eddy-current sensor and signal transmitter, etc. is more and more urgent. Such parts with varied feature dimensions, complex three-dimensional structures, and high geometric accuracy are generally fabricated by the combination of different manufacturing technology. However, it is difficult to ensure the machining precision because of the connection error between different processing methods. Therefore, a precise positioning method is proposed based on binocular micro stereo vision in this paper. Firstly, a novel and efficient camera calibration method for stereoscopic microscope is presented to solve the problems of narrow view field, small depth of focus and too many nonlinear distortions. Secondly, the extraction algorithms for law curve and free curve are given, and the spatial position relationship between the micro vision system and the machining system is determined accurately. Thirdly, a precise positioning system based on micro stereovision is set up and then embedded in a CNC machining experiment platform. Finally, the verification experiment of the positioning accuracy is conducted and the experimental results indicated that the average errors of the proposed method in the X and Y directions are 2.250 μm and 1.777 μm, respectively.

  20. Water Service Areas - Public Water Supplier's (PWS) Service Areas

    Data.gov (United States)

    NSGIC Education | GIS Inventory — Boundaries of current public water supplier's (PWS) service areas. This data set contains the present service area boundary of the water system and does not contain...

  1. Knowledge Service Engineering Handbook

    CERN Document Server

    Kantola, Jussi

    2012-01-01

    Covering the emerging field of knowledge service engineering, this groundbreaking handbook outlines how to acquire and utilize knowledge in the 21st century. Drawn on the expertise of the founding faculty member of the world's first university knowledge engineering service department, this book describes what knowledge services engineering means and how it is different from service engineering and service production. Presenting multiple cultural aspects including US, Finnish, and Korean, this handbook provides engineering, systemic, industry, and consumer use viewpoints to knowledge service sy

  2. Dynamic circular buffering: a technique for equilibrium gated blood pool imaging.

    Science.gov (United States)

    Vaquero, J J; Rahms, H; Green, M V; Del Pozo, F

    1996-03-01

    We have devised a software technique called "dynamic circular buffering" (DCB) with which we create a gated blood pool image sequence of the heart in real time using the best features of LIST and FRAME mode methods of acquisition/processing. The routine is based on the concept of independent "agents" acting on the timing and position data continuously written into the DCB. This approach allows efficient asynchronous operation on PC-type machines and enhanced capability on systems capable of true multiprocessing and multithreading.

  3. On-line surveillance system for Borssele nuclear power plant monitoring and diagnostics

    International Nuclear Information System (INIS)

    Tuerkcan, E.; Ciftcioglu, Oe.

    1993-08-01

    An operating on-line surveillance and diagnostic system is described where information processing for monitoring and fault diagnosis and plant maintenance are addressed. The surveillance system by means of its realtime multiprocessing, multitasking execution capabilities can perform plant-wide and wide-range monitoring for enhanced plant safety and operational reliability as well as enhanced maintenance. At the same time the system provides the possibilities for goal-oriented research and development such as estimation, filtering, verification and validation and neural networks. (orig./HP)

  4. BioServices: a common Python package to access biological Web Services programmatically.

    Science.gov (United States)

    Cokelaer, Thomas; Pultz, Dennis; Harder, Lea M; Serra-Musach, Jordi; Saez-Rodriguez, Julio

    2013-12-15

    Web interfaces provide access to numerous biological databases. Many can be accessed to in a programmatic way thanks to Web Services. Building applications that combine several of them would benefit from a single framework. BioServices is a comprehensive Python framework that provides programmatic access to major bioinformatics Web Services (e.g. KEGG, UniProt, BioModels, ChEMBLdb). Wrapping additional Web Services based either on Representational State Transfer or Simple Object Access Protocol/Web Services Description Language technologies is eased by the usage of object-oriented programming. BioServices releases and documentation are available at http://pypi.python.org/pypi/bioservices under a GPL-v3 license.

  5. Service Orientation in Manufacturing Firms : Understanding Challenges with Service Business Logic

    OpenAIRE

    Löfberg, Nina

    2014-01-01

    Globalisation and competition from low-cost countries has pushed manufacturing firms towards offering services to remain competitive. However, increasing the service orientation of a manufacturing firm to find new ways of value (co-)creation has presented several challenges, such as the fact that services do not provide the expected revenues, and resistance from both the sales force and from customers towards services. The aim of this thesis is to understand challenges linked to increasing se...

  6. Managing evolving services

    NARCIS (Netherlands)

    Papazoglou, M.; Andrikopoulos, V.; Benbernou, S.

    2011-01-01

    Services are subject to constant change and variation, leading to continuous redesign and improvement. However, service changes shouldn't be disruptive by requiring radical modifications or by altering the way that business is conducted. In this article, we discuss a causal model of service changes

  7. 77 FR 37078 - Product Change-Parcel Select and Parcel Return Service Negotiated Service Agreement

    Science.gov (United States)

    2012-06-20

    ... POSTAL SERVICE Product Change--Parcel Select and Parcel Return Service Negotiated Service... United States Postal Service[supreg] hereby gives notice that, pursuant to 39 U.S.C. 3642 and 3632(b)(3... Postal Service to Add Parcel Select & Parcel Return Service Contract 4 to Competitive Product List...

  8. Ecosystem Services

    Science.gov (United States)

    Ecosystem goods and services are the many life-sustaining benefits we receive from nature and contribute to environmental and human health and well-being. Ecosystem-focused research will develop methods to measure ecosystem goods and services.

  9. Optical Network as a Service for Service Function Chaining across Datacenters

    DEFF Research Database (Denmark)

    Mehmeri, Victor; Wang, Xi; Zhang, Qiong

    2017-01-01

    We present the SPN OS, a Network-as-a-Service orchestration platform for NFV/SDN integrated service provisioning across multiple datacenters over packet/optical networks. Our prototype showcases template-driven service function chaining and high-level network programming-based optical networking....

  10. Forestry-service entrepreneurs as producers of services

    International Nuclear Information System (INIS)

    Koistinen, A.

    1999-01-01

    The concept of forestry-service enterprise used in the joint study (1997-7999) by the TTS-Institute and the Finnish Forest Research Institute (Metla) refers to enterprises and co-operatives (including forest workers operating as entrepreneurs) offering services in the fields of silviculture, basic forest improvement, planning and wood-harvesting sector. Companies practicing large-scale wood-conversion and traditional forestry-machine and road haulage contractors are not included in this approach. It can be estimated that there is a total of 450 such entrepreneurs in the country Those engaged in only a minor degree in providing forestry services are not included in the figure. The nation-wide research material was collected in the form of a mail questionnaire addressed to forestry-service entrepreneurs (n=320) in the spring of 1998. Almost all forestry-service entrepreneurs provide timber felling as a service. More than half of them do planting, cleaning of young stands, tending of young stands, and forest haulage of timber. Forestry planning is done by nearly a quarter. With the focus of operations as calculated from the enterprises turnover serving as the basis, it became apparent that the majority of entrepreneurship takes place in the form of logging. The means of transport is mostly an agricultural tractor. Most of entrepreneurs have switched to entrepreneurship only recently. Nearly a third have college level education in forestry, 39 % have switched over from their previous occupation of forest worker. Most entrepreneurs are full-time, private practitioners. Their median turnover in 1997 was FIM 180 000. Non-industrial private forest owners form the clientele for 82 % of the entrepreneurs, while local forest management associations are sources of employment for 68 % of the entrepreneurs. As to the average breakdown of the sources of their turnover 31 % is earned from jobs done for local forest management associations, 31 % comes from local forest management

  11. Innovation in Extraterrestrial Service Systems - A Challenge for Service Science

    Science.gov (United States)

    Bergner, David

    2010-01-01

    This presentation was prepared at the invitation of Professor Yukio Ohsawa, Department of Systems Innovation, School of Engineering, The University of Tokyo, for delivery at the International Workshop on Innovating Service Systems, sponsored by the Japanese Society of Artificial Intelligence (JSAI) as part of the JSAI Internation Symposium on AI, 2010. It offers several challenges for Service Science and Service Innovation. the goal of the presentation is to stimulate thinking about how service systems viII evolve in the future, as human society advances from its terrestrial base toward a permanent presence in space. First we will consider the complexity of the International Space Station (ISS) as it is today, with particular emphasis of its research facilities, and focus on a current challenge - to maximize the utilization of ISS research facilities for the benefit of society. After briefly reviewing the basic principles of Service Science, we will discuss the potential application of Service Innovation methodology to this challenge. Then we viII consider how game-changing technologies - in particular Synthetic Biology - could accelerate the pace of sociocultural evolution and consequently, the progression of human society into space. We will use this provocative vision to advance thinking about how the emerging field of Service Science, Management, and Engineering (SSME) might help us anticipate and better handle the challenges of this inevitable evolutionary process.

  12. New Service Status Board

    CERN Multimedia

    2013-01-01

    On Monday 14 October, the Service Status Board for GS and IT will change. The new Status Board will be integrated with the CERN Service Portal and with the CERN Service Catalogue.   As of today, the SSB will display “Service Incidents”, “Planned Interventions” and “Service Changes”. References valid from 14 October: CERN SSB at https://cern.ch/ssb Computing SSB (previously IT SSB) at https://cern.ch/itssb   Nicole Cremel, IT and GS Service Management Support

  13. Types of Services

    NARCIS (Netherlands)

    Vissers, C.A.; van Sinderen, Marten J.; Pras, Aiko

    In the following, the diversity of services which a distributed system can provide is illustrated, and a main classification of services is presented. Services are described in an informal but abstract way, conforming with the current descriptions used by ISO in its OSI/RM related (draft) standards.

  14. [Health services research for the public health service (PHS) and the public health system].

    Science.gov (United States)

    Hollederer, A; Wildner, M

    2015-03-01

    There is a great need for health services research in the public health system and in the German public health service. However, the public health service is underrepresented in health services research in Germany. This has several structural, historical and disciplinary-related reasons. The public health service is characterised by a broad range of activities, high qualification requirements and changing framework conditions. The concept of health services research is similar to that of the public health service and public health system, because it includes the principles of multidisciplinarity, multiprofessionalism and daily routine orientation. This article focuses on a specified system theory based model of health services research for the public health system and public health service. The model is based on established models of the health services research and health system research, which are further developed according to specific requirements of the public health service. It provides a theoretical foundation for health services research on the macro-, meso- and microlevels in public health service and the public health system. Prospects for public health service are seen in the development from "old public health" to "new public health" as well as in the integration of health services research and health system research. There is a significant potential for development in a better linkage between university research and public health service as is the case for the "Pettenkofer School of Public Health Munich". © Georg Thieme Verlag KG Stuttgart · New York.

  15. Measuring Service Quality in the Information Services Environment.

    Science.gov (United States)

    Maddox-Swan, Ruth

    1998-01-01

    The purpose of this research was to identify the service factors that influence judgments of customer satisfaction in the academic library/media center. The study, conducted at Florida State University examined the relative importance of these determinants of service quality and compared these results to earlier studies conducted with customers of…

  16. E-Services and the Codification of Informational Services

    DEFF Research Database (Denmark)

    Scupola, Ada; Henten, Anders; Nicolajsen, Hanne Westh

    2011-01-01

    The concept of e-services has gained increasing use during the past decade. There is, however, no general agreement as to the precise meaning and scope of the term. The research purpose of the present chapter is, therefore, to discuss the e-service concept, its strengths and scope, and thereby co...

  17. Architecting Service-Oriented Systems

    Science.gov (United States)

    2011-08-01

    Abstract Service orientation is an approach to software systems development that has become a popular way to implement distributed, loosely coupled...runtime. The later you defer binding the more flexibility service providers and service consumers have to develop their software systems independently...Enterprise Service Bus An Enterprise Service Bus (ESB) is a software pattern that can be part of a SOA infrastructure and acts as an intermediary

  18. Service Innovations

    DEFF Research Database (Denmark)

    Sørensen, Lene Tolstrup; Nicolajsen, Hanne Westh

    2010-01-01

    This article discusses the challenges in relation to an ongoing project named converged advanced mobile media platform (CAMMP), where all the different stakeholders need to have a saying in the service development for the upcoming rich, mobile broadcasting services....

  19. Changed Role of Service Sector And Enhanced Service Tax Revenue An Introspection

    OpenAIRE

    Balachandran, Dr. V; Malini, K Hema

    2013-01-01

    The present paper attempts to evaluate the performance of service tax in India in terms of revenue generation, assessee base and its share in the total tax kitty of India. In addition, the relative position of the share of service sector and service tax in relation to GDP and total tax revenue of the country has also analyzed. The analysis of data reveals that service tax in India is progressing faster in terms of revenue collection, assesse base and even service tax collection per assesse an...

  20. Finance and Management Services

    Science.gov (United States)

    Substance Misuse and Addiction Prevention Finance & Management Services Health Care Services Juvenile health care provider about vitamin D and the risks and benefits of supplementation. Finance and Management Services The Division of Finance and Management Services (FMS) provides financial, administrative

  1. Mass Customization in Wireless Communication Services: Individual Service Bundles and Tariffs

    NARCIS (Netherlands)

    H. Chen (Hong); L-F. Pau (Louis-François)

    2007-01-01

    textabstractThis paper presents results on mass customization of wireless communications services and tariffs. It advocates for a user-centric view of wireless service configuration and pricing as opposed to present-day service catalog options. The focus is on design methodology and tools for such

  2. Multiple service use: the impact of consistency in service quality for vulnerable youth.

    Science.gov (United States)

    Sanders, Jackie; Munford, Robyn; Liebenberg, Linda; Ungar, Michael

    2014-04-01

    Little is known about the way in which variations in service quality influence outcomes when youth are clients of more than one service system. This article reports on a study of 1,210 adolescents (aged 13-17 years), half were concurrent clients of two or more services and half were not involved in two or more services. Youth completed a self-report questionnaire administered by a trained interviewer. It was hypothesized that youth reporting two positive service experiences would report lower risks, higher resilience, and better outcomes than youth reporting inconsistent or two negative service experiences and that their resilience, risks, and outcomes would be similar to those of youth not involved in two or more services. MANCOVA was used to determine the relationship among service quality and resilience, risk, and outcomes with four covariates that assessed family and neighborhood environments, history of abuse and neglect, and chronic need. Results indicate that service quality had an effect on resilience, risks, and outcomes. These relationships were mediated quite strongly by the influence of the risks youth faced in their neighborhoods and to a lesser extent by the other three covariates. Of the three dependent variables, risk appeared to be the most consistently influenced by all the covariates, and it also differentiated service experience groups. Results point to the importance of services developing strategies to effectively address risks confronted by youth and also to ensure that when more than one service is involved with youth, consistency in service delivery is achieved. Copyright © 2013 Elsevier Ltd. All rights reserved.

  3. Service quality, trust, and patient satisfaction in interpersonal-based medical service encounters.

    Science.gov (United States)

    Chang, Ching-Sheng; Chen, Su-Yueh; Lan, Yi-Ting

    2013-01-16

    Interaction between service provider and customer is the primary core of service businesses of different natures, and the influence of trust on service quality and customer satisfaction could not be ignored in interpersonal-based service encounters. However, lack of existing literature on the correlation between service quality, patient trust, and satisfaction from the prospect of interpersonal-based medical service encounters has created a research gap in previous studies. Therefore, this study attempts to bridge such a gap with an evidence-based practice study. We adopted a cross-sectional design using a questionnaire survey of outpatients in seven medical centers of Taiwan. Three hundred and fifty copies of questionnaire were distributed, and 285 valid copies were retrieved, with a valid response rate of 81.43%. The SPSS 14.0 and AMOS 14.0 (structural equation modeling) statistical software packages were used for analysis. Structural equation modeling clarifies the extent of relationships between variables as well as the chain of cause and effect. Restated, SEM results do not merely show empirical relationships between variables when defining the practical situation. For this reason, SEM was used to test the hypotheses. Perception of interpersonal-based medical service encounters positively influences service quality and patient satisfaction. Perception of service quality among patients positively influences their trust. Perception of trust among patients positively influences their satisfaction. According to the findings, as interpersonal-based medical service encounters will positively influence service quality and patient satisfaction, and the differences for patients' perceptions of the professional skill and communication attitude of personnel in interpersonal-based medical service encounters will influence patients' overall satisfaction in two ways: (A) interpersonal-based medical service encounter directly affects patient satisfaction, which represents a

  4. Service quality, trust, and patient satisfaction in interpersonal-based medical service encounters

    Science.gov (United States)

    2013-01-01

    Background Interaction between service provider and customer is the primary core of service businesses of different natures, and the influence of trust on service quality and customer satisfaction could not be ignored in interpersonal-based service encounters. However, lack of existing literature on the correlation between service quality, patient trust, and satisfaction from the prospect of interpersonal-based medical service encounters has created a research gap in previous studies. Therefore, this study attempts to bridge such a gap with an evidence-based practice study. Methods We adopted a cross-sectional design using a questionnaire survey of outpatients in seven medical centers of Taiwan. Three hundred and fifty copies of questionnaire were distributed, and 285 valid copies were retrieved, with a valid response rate of 81.43%. The SPSS 14.0 and AMOS 14.0 (structural equation modeling) statistical software packages were used for analysis. Structural equation modeling clarifies the extent of relationships between variables as well as the chain of cause and effect. Restated, SEM results do not merely show empirical relationships between variables when defining the practical situation. For this reason, SEM was used to test the hypotheses. Results Perception of interpersonal-based medical service encounters positively influences service quality and patient satisfaction. Perception of service quality among patients positively influences their trust. Perception of trust among patients positively influences their satisfaction. Conclusions According to the findings, as interpersonal-based medical service encounters will positively influence service quality and patient satisfaction, and the differences for patients’ perceptions of the professional skill and communication attitude of personnel in interpersonal-based medical service encounters will influence patients’ overall satisfaction in two ways: (A) interpersonal-based medical service encounter directly

  5. Service quality, trust, and patient satisfaction in interpersonal-based medical service encounters

    Directory of Open Access Journals (Sweden)

    Chang Ching-Sheng

    2013-01-01

    Full Text Available Abstract Background Interaction between service provider and customer is the primary core of service businesses of different natures, and the influence of trust on service quality and customer satisfaction could not be ignored in interpersonal-based service encounters. However, lack of existing literature on the correlation between service quality, patient trust, and satisfaction from the prospect of interpersonal-based medical service encounters has created a research gap in previous studies. Therefore, this study attempts to bridge such a gap with an evidence-based practice study. Methods We adopted a cross-sectional design using a questionnaire survey of outpatients in seven medical centers of Taiwan. Three hundred and fifty copies of questionnaire were distributed, and 285 valid copies were retrieved, with a valid response rate of 81.43%. The SPSS 14.0 and AMOS 14.0 (structural equation modeling statistical software packages were used for analysis. Structural equation modeling clarifies the extent of relationships between variables as well as the chain of cause and effect. Restated, SEM results do not merely show empirical relationships between variables when defining the practical situation. For this reason, SEM was used to test the hypotheses. Results Perception of interpersonal-based medical service encounters positively influences service quality and patient satisfaction. Perception of service quality among patients positively influences their trust. Perception of trust among patients positively influences their satisfaction. Conclusions According to the findings, as interpersonal-based medical service encounters will positively influence service quality and patient satisfaction, and the differences for patients’ perceptions of the professional skill and communication attitude of personnel in interpersonal-based medical service encounters will influence patients’ overall satisfaction in two ways: (A interpersonal-based medical

  6. Telephone Service

    CERN Multimedia

    2005-01-01

    As part of the upgrade of telephone services, the CERN exchange switches will be updated on Thursday 2 June between 7.00 p.m. and midnight. Telephone services may be affected and possibly even disrupted during this operation. 

  7. Economic viewpoints on ecosystem services

    NARCIS (Netherlands)

    Silvis, H.J.; Heide, van der C.M.

    2013-01-01

    to help determine the different values of ecosystems. Ecosystem services are usually divided into four categories: provisioning services, regulating services, cultural services and habitat services (previously denoted as supporting services). This overview highlights economic theories about

  8. Service software engineering for innovative infrastructure for global financial services

    OpenAIRE

    MAAD , Soha; MCCARTHY , James B.; GARBAYA , Samir; Beynon , Meurig; Nagarajan , Rajagopal

    2010-01-01

    International audience; The recent financial crisis motivates our re-thinking of the engineering principles for service software and infrastructures intended to create business value in vital sectors. Existing monolithic, inwarddirected, cost insensitive and highly regulated technical and organizational infrastructures for financial services make it difficult for the domain to benefit from opportunities offered by new computing models such as cloud computing, software as a service, hardware a...

  9. Large Retailers’ Financial Services

    OpenAIRE

    Risso, Mario

    2010-01-01

    Over the last few years, large retailers offering financial services have considerably grown in the financial services sector. Retailers are increasing the wideness and complexity of their offer of financial services. Large retail companies provide financial services to their customers following different strategic ways. The provision of financial services in the retailers offer is implemented in several different ways related to the strategies, the structures and the degree of financial know...

  10. [Planning by service organisation priorities. The process of preparing strategic service-organisation plans].

    Science.gov (United States)

    Sampietro-Colom, Laura; Costa, Dolors; Busqué, Anna; Lacasa, Carme

    2008-12-01

    Strategic planning designs the general setting and the strategic principles of a healthcare system, as well as the general guidelines that govern the development of a health system. Strategic service-organisation plans deal with translating healthcare policies into service policies and respond, principally, to the need for services; these give rise to problems that require a solution. They are developed in line with advances in scientific knowledge, the implementation and current characteristics of the healthcare services and the evolution in the competences of professional teams. There are five stages for their development: identification of health/service requirements; prioritisation of needs in health/services; definition of and agreement on service organisation models (care model and service portfolio); the preparation of and agreement on territorial action plans; introduction and evaluation. A conceptual framework is presented along with practical applications carried out in Catalonia.

  11. 76 FR 63351 - Senior Executive Service; Financial Management Service Performance Review Board (PRB)

    Science.gov (United States)

    2011-10-12

    ... DEPARTMENT OF THE TREASURY Senior Executive Service; Financial Management Service Performance Review Board (PRB) AGENCY: Financial Management Service, Treasury. ACTION: Notice. SUMMARY: This notice announces the appointment of members to the Financial Management Service (FMS) Performance Review Board (PRB...

  12. 77 FR 60177 - Senior Executive Service; Financial Management Service Performance Review Board (PRB)

    Science.gov (United States)

    2012-10-02

    ... DEPARTMENT OF THE TREASURY Senior Executive Service; Financial Management Service Performance Review Board (PRB) AGENCY: Financial Management Service, Treasury. ACTION: Notice. SUMMARY: This notice announces the appointment of members to the Financial Management Service (FMS) Performance Review Board (PRB...

  13. 75 FR 35289 - International Services Surveys: BE-180, Benchmark Survey of Financial Services Transactions...

    Science.gov (United States)

    2010-06-22

    ...-AA73 International Services Surveys: BE-180, Benchmark Survey of Financial Services Transactions Between U.S. Financial Services Providers and Foreign Persons AGENCY: Bureau of Economic Analysis... Survey of Financial Services Transactions between U.S. Financial Services Providers and Foreign Persons...

  14. On the existence of continuous selections of solution and reachable ...

    African Journals Online (AJOL)

    We prove that the map that associates to the initial value the set of solutions to the Lipschitzian Quantum Stochastic Differential Inclusion (QSDI) admits a selection continuous from the locally convex space of stochastic processes to the adapted and weakly absolutely continuous space of solutions. As a corollary, we show ...

  15. Focusing on customer service.

    Science.gov (United States)

    1996-01-01

    This booklet is devoted to a consideration of how good customer service in family planning programs can generate demand for products and services, bring customers back, and reduce costs. Customer service is defined as increasing client satisfaction through continuous concern for client preferences, staff accountability to clients, and respect for the rights of clients. Issues discussed include the introduction of a customer service approach and gaining staff commitment. The experience of PROSALUD in Bolivia in recruiting appropriate staff, supervising staff, soliciting client feedback, and marketing services is offered as an example of a successful customer service approach. The key customer service functions are described as 1) establishing a welcoming atmosphere, 2) streamlining client flow, 3) personalizing client services, and 4) organizing and providing clear information to clients. The role of the manager in developing procedures is explored, and the COPE (Client-Oriented Provider-Efficient) process is presented as a good way to begin to make improvements. Techniques in staff training in customer service include brainstorming, role playing, using case studies (examples of which are provided), and engaging in practice sessions. Training also leads to the development of effective customer service attitudes, and the differences between these and organizational/staff-focused attitudes are illustrated in a chart. The use of communication skills (asking open-ended questions, helping clients express their concerns, engaging in active listening, and handling difficult situations) is considered. Good recovery skills are important when things go wrong. Gathering and using client feedback is the next topic considered. This involves identifying, recording, and discussing customer service issues as well as taking action on these issues and evaluating the results. The booklet ends by providing a sample of customer service indicators, considering the maintenance of a

  16. Service innovation methodologies I : what can we learn from service innovation and new service development research? : report no 1 from the TIPVIS-project

    OpenAIRE

    Nysveen, Herbjørn; Pedersen, Per E.

    2007-01-01

    This report presents a review of service innovation and service development literature. The main purpose of the review is to identify normative implications for service innovation methodologies. Three separate reviews are conducted and reported; an open search review based on specific search terms of relevance to service innovation methodologies, a review of articles in four of the most influential journals on service innovation/service development, and a review focusing contri...

  17. Services

    International Nuclear Information System (INIS)

    Hardeman, F.

    1998-01-01

    The objectives of the services section is (1) to offer complete services in health-physics measurements according to international quality standards, (2) to improve continuously these measurement techniques and to follow up international recommendations and legislation concerning the surveillance of workers, (3) to support and advise nuclear and non-nuclear industry on problems of radioactive contamination. Achievements related to gamma spectrometry, whole-body counting, beta and alpha spectrometry, dosimetry, radon measurements, calibration, instrumentation, and neutron activation analysis are described

  18. 78 FR 10174 - Public Availability of General Services Administration FY 2012 Service Contract Inventory

    Science.gov (United States)

    2013-02-13

    ... GENERAL SERVICES ADMINISTRATION [Notice-MV-2013-02; Docket No. 2013-0002; Sequence 3] Public Availability of General Services Administration FY 2012 Service Contract Inventory AGENCY: General Services Administration (GSA). ACTION: Notice of Public Availability of FY 2012 Service Contract Inventories. SUMMARY: In...

  19. 75 FR 10704 - International Services Surveys: BE-180, Benchmark Survey of Financial Services Transactions...

    Science.gov (United States)

    2010-03-09

    ...] RIN 0691-AA73 International Services Surveys: BE-180, Benchmark Survey of Financial Services Transactions Between U.S. Financial Services Providers and Foreign Persons AGENCY: Bureau of Economic Analysis... BE-180, Benchmark Survey of Financial Services Transactions between U.S. Financial Services Providers...

  20. Service quality and clinical outcomes: an example from mental health rehabilitation services in England.

    Science.gov (United States)

    Killaspy, Helen; Marston, Louise; Omar, Rumana Z; Green, Nicholas; Harrison, Isobel; Lean, Melanie; Holloway, Frank; Craig, Tom; Leavey, Gerard; King, Michael

    2013-01-01

    Current health policy assumes better quality services lead to better outcomes. To investigate the relationship between quality of mental health rehabilitation services in England, local deprivation, service user characteristics and clinical outcomes. Standardised tools were used to assess the quality of mental health rehabilitation units and service users' autonomy, quality of life, experiences of care and ratings of the therapeutic milieu. Multiple level modelling investigated relationships between service quality, service user characteristics and outcomes. A total of 52/60 (87%) National Health Service trusts participated, comprising 133 units and 739 service users. All aspects of service quality were positively associated with service users' autonomy, experiences of care and therapeutic milieu, but there was no association with quality of life. Quality of care is linked to better clinical outcomes in people with complex and longer-term mental health problems. Thus, investing in quality is likely to show real clinical gains.

  1. OPTIMIZING PUBLIC SERVICE THROUGH E-GOV SERVICES (THE CASE OF PUBLIC SERVICE IN SOUTH JAKARTA MUNICIPALITY

    Directory of Open Access Journals (Sweden)

    Florentina Ratih Wulandari

    2012-08-01

    Full Text Available The development of information technology and public administration paradigms that emphasize services for the benefit of society has affected the strategic efforts of e-Gov in Indonesia. For that, there is a need to create qualified, competitive, effective and efficient of the public services. Indonesia’s E-Gov Policy has been applying principles of good governance and information technology to serve and interact with the community. Some local governments, including South Jakarta Municipality has been implementing e-Gov to optimize public service. e-Gov in South Jakarta Municipality is reflected on the implementation of a management information technology to improve services to the community by creating a web site, namely http://selatan.jakarta.go.id/. The information presented in South Jakarta Municipality website includes tourism, local regulations, and other information of Municipality of South Jakarta.

  2. 20 CFR 652.208 - How are core services and intensive services related to the methods of service delivery described...

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false How are core services and intensive services related to the methods of service delivery described in § 652.207(b)(2)? 652.208 Section 652.208 Employees' Benefits EMPLOYMENT AND TRAINING ADMINISTRATION, DEPARTMENT OF LABOR ESTABLISHMENT AND...

  3. BOWS (bioinformatics open web services) to centralize bioinformatics tools in web services.

    Science.gov (United States)

    Velloso, Henrique; Vialle, Ricardo A; Ortega, J Miguel

    2015-06-02

    Bioinformaticians face a range of difficulties to get locally-installed tools running and producing results; they would greatly benefit from a system that could centralize most of the tools, using an easy interface for input and output. Web services, due to their universal nature and widely known interface, constitute a very good option to achieve this goal. Bioinformatics open web services (BOWS) is a system based on generic web services produced to allow programmatic access to applications running on high-performance computing (HPC) clusters. BOWS intermediates the access to registered tools by providing front-end and back-end web services. Programmers can install applications in HPC clusters in any programming language and use the back-end service to check for new jobs and their parameters, and then to send the results to BOWS. Programs running in simple computers consume the BOWS front-end service to submit new processes and read results. BOWS compiles Java clients, which encapsulate the front-end web service requisitions, and automatically creates a web page that disposes the registered applications and clients. Bioinformatics open web services registered applications can be accessed from virtually any programming language through web services, or using standard java clients. The back-end can run in HPC clusters, allowing bioinformaticians to remotely run high-processing demand applications directly from their machines.

  4. Buying business services : towards a structured service purchasing process

    NARCIS (Netherlands)

    Valk, van der W.; Rozemeijer, F.A.

    2009-01-01

    Abstract: Purpose – This paper aims to uncover the specific difficulties associated with buying services and proposes a structured purchasing process which can help organisational buyers to overcome the problems associated with services purchasing. Design/methodology/approach – The authors

  5. Consumer Perceptions of Service Constellations : Implications for Service Innovation

    NARCIS (Netherlands)

    van Riel, A.C.R.; Calabretta, G.; Driessen, P.H.; Hillebrand, B.; Humphreys, A.; Krafft, M.; Beckers, S.F.M.

    2013-01-01

    Purpose - The purpose of this paper is to investigate how the service constellation perspective affects innovation strategies and potentially contributes to the innovation literature, proposing a research agenda. Design/methodology/approach - By analyzing the notion of a service constellation, the

  6. Integrating complementary and alternative medicine into mainstream healthcare services: the perspectives of health service managers.

    Science.gov (United States)

    Singer, Judy; Adams, Jon

    2014-05-22

    Complementary and alternative medicine (CAM) is increasingly included within mainstream integrative healthcare (IHC) services. Health service managers are key stakeholders central to ensuring effective integrative health care services. Yet, little research has specifically investigated the role or perspective of health service managers with regards to integrative health care services under their management. In response, this paper reports findings from an exploratory study focusing exclusively on the perspectives of health service managers of integrative health care services in Australia regarding the role of CAM within their service and the health service managers rational for incorporating CAM into clinical care. Health service managers from seven services were recruited using purposive and snowball sampling. Semi-structured interviews were conducted with the health service managers. The services addressed trauma and chronic conditions and comprised: five community-based programs including drug and alcohol rehabilitation, refugee mental health and women's health; and two hospital-based specialist services. The CAM practices included in the services investigated included acupuncture, naturopathy, Western herbal medicine and massage. Findings reveal that the health service managers in this study understand CAM to enhance the holistic capacity of their service by: filling therapeutic gaps in existing healthcare practices; by treating the whole person; and by increasing healthcare choices. Health service managers also identified CAM as addressing therapeutic gaps through the provision of a mind-body approach in psychological trauma and in chronic disease management treatment. Health service managers describe the addition of CAM in their service as enabling patients who would otherwise not be able to afford CAM to gain access to these treatments thereby increasing healthcare choices. Some health service managers expressly align the notion of treating the whole person

  7. From theoretical to actual ecosystem services: mapping beneficiaries and spatial flows in ecosystem service assessments

    Directory of Open Access Journals (Sweden)

    Kenneth J. Bagstad

    2014-06-01

    Full Text Available Ecosystem services mapping and modeling has focused more on supply than demand, until recently. Whereas the potential provision of economic benefits from ecosystems to people is often quantified through ecological production functions, the use of and demand for ecosystem services has received less attention, as have the spatial flows of services from ecosystems to people. However, new modeling approaches that map and quantify service-specific sources (ecosystem capacity to provide a service, sinks (biophysical or anthropogenic features that deplete or alter service flows, users (user locations and level of demand, and spatial flows can provide a more complete understanding of ecosystem services. Through a case study in Puget Sound, Washington State, USA, we quantify and differentiate between the theoretical or in situ provision of services, i.e., ecosystems' capacity to supply services, and their actual provision when accounting for the location of beneficiaries and the spatial connections that mediate service flows between people and ecosystems. Our analysis includes five ecosystem services: carbon sequestration and storage, riverine flood regulation, sediment regulation for reservoirs, open space proximity, and scenic viewsheds. Each ecosystem service is characterized by different beneficiary groups and means of service flow. Using the ARtificial Intelligence for Ecosystem Services (ARIES methodology we map service supply, demand, and flow, extending on simpler approaches used by past studies to map service provision and use. With the exception of the carbon sequestration service, regions that actually provided services to people, i.e., connected to beneficiaries via flow paths, amounted to 16-66% of those theoretically capable of supplying services, i.e., all ecosystems across the landscape. These results offer a more complete understanding of the spatial dynamics of ecosystem services and their effects, and may provide a sounder basis for

  8. From theoretical to actual ecosystem services: mapping beneficiaries and spatial flows in ecosystem service assessments

    Science.gov (United States)

    Bagstad, Kenneth J.; Villa, Ferdinando; Batker, David; Harrison-Cox, Jennifer; Voigt, Brian; Johnson, Gary W.

    2014-01-01

    Ecosystem services mapping and modeling has focused more on supply than demand, until recently. Whereas the potential provision of economic benefits from ecosystems to people is often quantified through ecological production functions, the use of and demand for ecosystem services has received less attention, as have the spatial flows of services from ecosystems to people. However, new modeling approaches that map and quantify service-specific sources (ecosystem capacity to provide a service), sinks (biophysical or anthropogenic features that deplete or alter service flows), users (user locations and level of demand), and spatial flows can provide a more complete understanding of ecosystem services. Through a case study in Puget Sound, Washington State, USA, we quantify and differentiate between the theoretical or in situ provision of services, i.e., ecosystems’ capacity to supply services, and their actual provision when accounting for the location of beneficiaries and the spatial connections that mediate service flows between people and ecosystems. Our analysis includes five ecosystem services: carbon sequestration and storage, riverine flood regulation, sediment regulation for reservoirs, open space proximity, and scenic viewsheds. Each ecosystem service is characterized by different beneficiary groups and means of service flow. Using the ARtificial Intelligence for Ecosystem Services (ARIES) methodology we map service supply, demand, and flow, extending on simpler approaches used by past studies to map service provision and use. With the exception of the carbon sequestration service, regions that actually provided services to people, i.e., connected to beneficiaries via flow paths, amounted to 16-66% of those theoretically capable of supplying services, i.e., all ecosystems across the landscape. These results offer a more complete understanding of the spatial dynamics of ecosystem services and their effects, and may provide a sounder basis for economic

  9. Menu-based service access and delivery pattern: Towards achieving equatable access to digital services

    CSIR Research Space (South Africa)

    Makitla, I

    2014-11-01

    Full Text Available . This capability is used in basic service such as Short Message Service (SMS) as well as Unstructured Supplementary Service Data (USSD). There is a need for a service access and delivery pattern that can facilitate the delivery of services using common...

  10. Value-driven service matching

    NARCIS (Netherlands)

    Gordijn, Jaap; de Kinderen, Sybren; Wieringa, Roelf J.

    2008-01-01

    Today's economy is a service economy, and an increasing number of services is electronic, i.e. can be ordered and provisioned online. Examples include Internet access, email and Voice over IP. Just as any other kind of services, e-services often are offered in bundles, and many consumer needs

  11. The Service Orientation and Employee’s Customer Orientation in Public Services Organizations

    OpenAIRE

    Andrada Iacob

    2015-01-01

    This paper explores the relationships between service orientation and employees’ customer orientation in public services organizations. First, we will review the relevant literature on service orientation and employee’s customer orientation. Based on this theory, the research hypothesis is formulated. The research results will be followed by conclusions, limitations and future directions. At the construct level, we found positive direct relationships between service orientation and employees’...

  12. The Service Pledge for Breast Cancer – Improving services through patient involvement

    International Nuclear Information System (INIS)

    Freeman, Shauna; Kester, Ross; Greenbrook, Sally; O’Connor, Ruairi; Rawlings, Sarah

    2012-01-01

    A guiding principle for today’s National Health Service is for services to reflect the needs and choices of patients and carers. There is evidence that meaningful patient involvement and engagement of people in their own care supports relationships with NHS professionals, and improves the quality and experience of healthcare. This paper reviews the Service Pledge for Breast Cancer, developed by the charity Breakthrough Breast Cancer as a tried and tested route to delivering effective patient involvement and examines some implications for radiotherapy services. The Service Pledge, which has benefitted an estimated 19,000 patients across the UK, is a tool that enables healthcare professionals and patients to work in partnership to improve local breast cancer services. Based on the results of a patient survey and in depth interviews to determine to what extent standards of care are being met at each participating hospital, improvement goals are identified helping turn the patient voice into constructive action. Improvement goals resulting from the Service Pledge range from small changes that make a real difference to patients, through to much larger changes to local breast services. To date, there has been limited involvement of radiotherapy staff in the Service Pledge, yet radiographers play an important role in the treatment of breast cancer as most patients will be offered radiotherapy. However, radiotherapy services have been criticised for not being patient -centred and for not providing enough information, psychological and emotional support before, during and after treatment. It is contended that radiographers are ideally placed to address many of these concerns and engage further with patients through projects such as the Service Pledge, empowering their patients to voice what is most important to them and driving the quality improvements that emerge.

  13. Service climate as a mediator of organizational empowerment in customer-service employees.

    Science.gov (United States)

    Mendoza-Sierra, Maria Isabel; Orgambídez-Ramos, Alejandro; Carrasco-González, Ana María; León-Jariego, José Carlos

    2014-01-01

    The aim of this study is to examine the mediating role of the service climate between organizational empowerment (i.e., dynamic structural framework, control of workplace decisions, fluidity in information sharing) and service quality (functional and relational). 428 contact employees from 46 hotels participated in the survey. Correlations demonstrated that dynamic structural framework, control decisions, and fluidity in information sharing are related to both functional and relational service quality. Regression analyses and Sobel tests revealed that service climate totally mediated the relationship between all three dimensions of organizational empowerment and relational service quality. Implications for practice and future research are discussed.

  14. Calgary Laboratory Services

    Directory of Open Access Journals (Sweden)

    James R. Wright MD, PhD

    2015-12-01

    Full Text Available Calgary Laboratory Services provides global hospital and community laboratory services for Calgary and surrounding areas (population 1.4 million and global academic support for the University of Calgary Cumming School of Medicine. It developed rapidly after the Alberta Provincial Government implemented an austerity program to address rising health care costs and to address Alberta’s debt and deficit in 1994. Over roughly the next year, all hospital and community laboratory test funding within the province was put into a single budget, fee codes for fee-for-service test billing were closed, roughly 40% of the provincial laboratory budget was cut, and roughly 40% of the pathologists left the province of Alberta. In Calgary, in the face of these abrupt changes in the laboratory environment, private laboratories, publicly funded hospital laboratories and the medical school department precipitously and reluctantly merged in 1996. The origin of Calgary Laboratory Services was likened to an “unhappy shotgun marriage” by all parties. Although such a structure could save money by eliminating duplicated services and excess capacity and could provide excellent city-wide clinical service by increasing standardization, it was less clear whether it could provide strong academic support for a medical school. Over the past decade, iterations of the Calgary Laboratory Services model have been implemented or are being considered in other Canadian jurisdictions. This case study analyzes the evolution of Calgary Laboratory Services, provides a metric-based review of academic performance over time, and demonstrates that this model, essentially arising as an unplanned experiment, has merit within a Canadian health care context.

  15. Facilitating mobile service provisioning in IP Multimedia Subsystem (IMS) using service oriented architecture

    NARCIS (Netherlands)

    Radovanovic, I.; Ray, A.; Lukkien, J.J.; Chaudron, M.R.V.; Krämer, B.J.; Lin, K.J.; Narasimhan, P.

    2007-01-01

    This paper presents an extension of the IMS software architecture using a service orientation, which provides flexibility of mobile service provisioning. The suggested extension facilitates composition of new mobile services in run-time based on the existing services and enables the end users to

  16. Spatial dynamics of ecosystem service flows: a comprehensive approach to quantifying actual services

    Science.gov (United States)

    Bagstad, Kenneth J.; Johnson, Gary W.; Voigt, Brian; Villa, Ferdinando

    2013-01-01

    Recent ecosystem services research has highlighted the importance of spatial connectivity between ecosystems and their beneficiaries. Despite this need, a systematic approach to ecosystem service flow quantification has not yet emerged. In this article, we present such an approach, which we formalize as a class of agent-based models termed “Service Path Attribution Networks” (SPANs). These models, developed as part of the Artificial Intelligence for Ecosystem Services (ARIES) project, expand on ecosystem services classification terminology introduced by other authors. Conceptual elements needed to support flow modeling include a service's rivalness, its flow routing type (e.g., through hydrologic or transportation networks, lines of sight, or other approaches), and whether the benefit is supplied by an ecosystem's provision of a beneficial flow to people or by absorption of a detrimental flow before it reaches them. We describe our implementation of the SPAN framework for five ecosystem services and discuss how to generalize the approach to additional services. SPAN model outputs include maps of ecosystem service provision, use, depletion, and flows under theoretical, possible, actual, inaccessible, and blocked conditions. We highlight how these different ecosystem service flow maps could be used to support various types of decision making for conservation and resource management planning.

  17. Determinants of customer satisfaction with professional services: A study of consultants services

    DEFF Research Database (Denmark)

    Sonne, Anne-Mette

    1999-01-01

    Although models of service quality and customer satisfaction have been well researched within the consumer goods and services area, much less attention has been paid to high involvement business-to-business service satisfaction. The objective of this study is to contribute to this stream...... of research through a survey of customers of the Norwegian Institute of Fisheries and Aquaculture. Information on which factors are the determinants of customer satisfaction is important to consultants since customer satisfaction is what the service business depends on for repeat business. In this study we...... found that customer satisfaction is mostly influenced by the perceived competence of the consultant and the technical reliability demonstrated in the project. However, the perceived service quality is also influenced by the way the customer is treated during the service production process....

  18. Emotional Creativity (EC) among Pre-Service and In-Service Trainee Teachers

    Science.gov (United States)

    Singh, Gaurav; Kumar, Girijesh

    2010-01-01

    In the personality of a teacher, his emotional creativity is an important counterpart. In current study, researchers have carried out an investigation of emotional creativity of trainee teachers of pre-service and in-service trainee teachers. The objectives were to compare the emotional creativity of Trainee teachers of Pre-service Courses and…

  19. Service-Oriented Security Framework for Remote Medical Services in the Internet of Things Environment

    Science.gov (United States)

    Lee, Jae Dong; Yoon, Tae Sik; Chung, Seung Hyun

    2015-01-01

    Objectives Remote medical services have been expanding globally, and this is expansion is steadily increasing. It has had many positive effects, including medical access convenience, timeliness of service, and cost reduction. The speed of research and development in remote medical technology has been gradually accelerating. Therefore, it is expected to expand to enable various high-tech information and communications technology (ICT)-based remote medical services. However, the current state lacks an appropriate security framework that can resolve security issues centered on the Internet of things (IoT) environment that will be utilized significantly in telemedicine. Methods This study developed a medical service-oriented frame work for secure remote medical services, possessing flexibility regarding new service and security elements through its service-oriented structure. First, the common architecture of remote medical services is defined. Next medical-oriented secu rity threats and requirements within the IoT environment are identified. Finally, we propose a "service-oriented security frame work for remote medical services" based on previous work and requirements for secure remote medical services in the IoT. Results The proposed framework is a secure framework based on service-oriented cases in the medical environment. A com parative analysis focusing on the security elements (confidentiality, integrity, availability, privacy) was conducted, and the analysis results demonstrate the security of the proposed framework for remote medical services with IoT. Conclusions The proposed framework is service-oriented structure. It can support dynamic security elements in accordance with demands related to new remote medical services which will be diversely generated in the IoT environment. We anticipate that it will enable secure services to be provided that can guarantee confidentiality, integrity, and availability for all, including patients, non-patients, and medical

  20. Service-Oriented Security Framework for Remote Medical Services in the Internet of Things Environment.

    Science.gov (United States)

    Lee, Jae Dong; Yoon, Tae Sik; Chung, Seung Hyun; Cha, Hyo Soung

    2015-10-01

    Remote medical services have been expanding globally, and this is expansion is steadily increasing. It has had many positive effects, including medical access convenience, timeliness of service, and cost reduction. The speed of research and development in remote medical technology has been gradually accelerating. Therefore, it is expected to expand to enable various high-tech information and communications technology (ICT)-based remote medical services. However, the current state lacks an appropriate security framework that can resolve security issues centered on the Internet of things (IoT) environment that will be utilized significantly in telemedicine. This study developed a medical service-oriented frame work for secure remote medical services, possessing flexibility regarding new service and security elements through its service-oriented structure. First, the common architecture of remote medical services is defined. Next medical-oriented secu rity threats and requirements within the IoT environment are identified. Finally, we propose a "service-oriented security frame work for remote medical services" based on previous work and requirements for secure remote medical services in the IoT. The proposed framework is a secure framework based on service-oriented cases in the medical environment. A com parative analysis focusing on the security elements (confidentiality, integrity, availability, privacy) was conducted, and the analysis results demonstrate the security of the proposed framework for remote medical services with IoT. The proposed framework is service-oriented structure. It can support dynamic security elements in accordance with demands related to new remote medical services which will be diversely generated in the IoT environment. We anticipate that it will enable secure services to be provided that can guarantee confidentiality, integrity, and availability for all, including patients, non-patients, and medical staff.

  1. Customer-oriented flexitime schemes; Kundenorientierte Arbeitszeitflexibilisierung

    Energy Technology Data Exchange (ETDEWEB)

    Wiedemann, E. [Lech-Elektrizitaetswerke (LEW) AG, Augsburg (Germany)

    1998-05-01

    In a competitive market, only those enterprises will persist that offer not only high-quality products but quality in a very comprehensive sense as well. Total customer care is the keyword in this context and is indispensable when it comes to establishing and maintaining brand perception and loyalty. The features and benefits of products, activities and services have to be tailored to the individual needs of the target group and the individual customer. In addition, the price/performance ratio of products and services must be carefully designed so as to be acceptable to a large variety of customers. This applies both to the ``hardware`` such as product quality and efficiency, and the product-related activities such as product information and consultancy, customer service organization, reachability of service or call centers, and handling of complaints and claims. (orig./CB) [Deutsch] Im Wettbewerb kann heute nur bestehen, wer ueber das Produkt hinaus Qualitaet in einem sehr umfassenden Sinne liefert. Eine starke Orientierung am Kundeninteresse (neudeutsch: Total Customer Care) ist eigentlich selbstverstaendlich, wenn es um Aufbau, Ausbau und Pflege von Markenbeziehungen geht. Die Eigenschaften und der Nutzen von Marktleistungen muessen den individuellen Beduerfnissen und Erwartungen der Zielgruppe oder einer Einzelperson entsprechen. Darueber hinaus ist Voraussetzung, dass die angebotenen Leistungen aus der subjektiven Sicht der Kunden in einem fuer sie akzeptablen Preis-Leistungs-Verhaeltnis stehen. Dies betrifft nicht allein die `harten Fakten` wie Qualitaet oder Funktion. Es gilt auch fuer alle Leistungen rund um das Produkt, insbesondere Beratung, Erreichbarkeit, Kundenservice oder Reklamationsbearbeitung. (orig./RHM)

  2. Cleaning Services.

    Science.gov (United States)

    Sharpton, James L.

    This curriculum guide provides cleaning services instructional materials for a ninth- and tenth-grade Coordinated Vocational Education and Training: Home and Community Services program. It includes 2 sections and 11 instructional units. Each unit of instruction consists of eight basic components: performance objectives, teacher activities,…

  3. Using a Service Audit Project for Improving Student Learning in a Service-Marketing Course

    Science.gov (United States)

    Gonzalez-Padron, Tracy; Ferguson, Jeffery M.

    2015-01-01

    Service-marketing education provides students customer service skills sought by employers who recognize the relationship between service and profit. Students in service marketing benefit from active-learning activities with actual organizations to apply customer service frameworks taught in the course. The purpose of this paper is to describe an…

  4. Outsourcing in State Service Activity Outsourcing in State Service Activity

    OpenAIRE

    Ivan Kotliarov

    2012-01-01

    The article gives an analysis of the problem of outsourcing in public management of the RF. It clarifies the definition of the term of public services; proposes concepts of public service and public service product; discusses the hypothesis that outsourcing really can help improve the performance of the state structures by attracting external resources.Results: the resource and contact activities are most promising for outsourcing. However, outsourcing of government activities is associated w...

  5. 76 FR 63581 - Certainty of Terms of Service Contracts and NVOCC Service Arrangements

    Science.gov (United States)

    2011-10-13

    ... Terms of Service Contracts and NVOCC Service Arrangements AGENCY: Federal Maritime Commission. ACTION... regarding certainty of terms of service contracts and non-vessel- operating common carrier service... flexibility if they decide to use long-term contracts that adjust based on a freight rate index that reflects...

  6. Effects of social intention on movement kinematics in cooperative actions

    Directory of Open Access Journals (Sweden)

    Francois eQuesque

    2013-10-01

    Full Text Available Optimal control models of biological movements are used to account for those internal variables that constrain voluntary goal-directed actions. They however do not take into account external environmental constraints as those associated to social intention. We investigated here the effects of the social context on kinematic characteristics of sequential actions consisting in placing an object on an initial pad (preparatory action before reaching and grasping as fast as possible the object to move it to another location (main action. Reach-to-grasp actions were performed either in an isolated condition or in the presence of a partner (audience effect, located in the near or far space (effect of shared reachable space, and who could intervene on the object in a systematic fashion (effect of social intention effect or not (effect of social uncertainty. Results showed an absence of audience effect but nevertheless an influence of the social context both on the main and the preparatory actions. In particular, a localized effect of shared reachable space was observed on the main action, which was smoother when performed within the reachable space of the partner. Furthermore, a global effect of social uncertainty was observed on both actions with faster and jerkier movements. Finally, social intention affected the preparatory action with higher wrist displacements and slower movements when the object was placed for the partner rather than placed for self-use. Overall, these results demonstrate specific effects of action space, social uncertainty and social intention on the planning of reach-to-grasp actions, in particular on the preparatory action, which was performed with no specific execution constraint. These findings underline the importance of considering the social context in optimal models of action control for human-robot interactions, in particular when focusing on the implementation of motor parameters required to afford intuitive

  7. Novel density-based and hierarchical density-based clustering algorithms for uncertain data.

    Science.gov (United States)

    Zhang, Xianchao; Liu, Han; Zhang, Xiaotong

    2017-09-01

    Uncertain data has posed a great challenge to traditional clustering algorithms. Recently, several algorithms have been proposed for clustering uncertain data, and among them density-based techniques seem promising for handling data uncertainty. However, some issues like losing uncertain information, high time complexity and nonadaptive threshold have not been addressed well in the previous density-based algorithm FDBSCAN and hierarchical density-based algorithm FOPTICS. In this paper, we firstly propose a novel density-based algorithm PDBSCAN, which improves the previous FDBSCAN from the following aspects: (1) it employs a more accurate method to compute the probability that the distance between two uncertain objects is less than or equal to a boundary value, instead of the sampling-based method in FDBSCAN; (2) it introduces new definitions of probability neighborhood, support degree, core object probability, direct reachability probability, thus reducing the complexity and solving the issue of nonadaptive threshold (for core object judgement) in FDBSCAN. Then, we modify the algorithm PDBSCAN to an improved version (PDBSCANi), by using a better cluster assignment strategy to ensure that every object will be assigned to the most appropriate cluster, thus solving the issue of nonadaptive threshold (for direct density reachability judgement) in FDBSCAN. Furthermore, as PDBSCAN and PDBSCANi have difficulties for clustering uncertain data with non-uniform cluster density, we propose a novel hierarchical density-based algorithm POPTICS by extending the definitions of PDBSCAN, adding new definitions of fuzzy core distance and fuzzy reachability distance, and employing a new clustering framework. POPTICS can reveal the cluster structures of the datasets with different local densities in different regions better than PDBSCAN and PDBSCANi, and it addresses the issues in FOPTICS. Experimental results demonstrate the superiority of our proposed algorithms over the existing

  8. 78 FR 14359 - Verizon Business Networks Services, Inc., Specialist-Tech Customer Service, Philadelphia, PA...

    Science.gov (United States)

    2013-03-05

    ... Business Networks Services, Inc., Specialist-Tech Customer Service, Philadelphia, PA; Verizon Business Networks Services, Inc., Specialist-Tech Customer Service, Tampa, Florida; Amended Certification Regarding... should [[Page 14360

  9. Shuttle requests

    CERN Multimedia

    2007-01-01

    Please note that starting from 1 March 2007, the shuttle requests: for official visits or bidders' conferences on the CERN site; towards/from the airport or central Geneva; for long distances, shall be made via Fm.Support@cern.ch or by calling 77777. The radio taxi will still be reachable at 76969. TS/FM Group

  10. School Principals' Technology Leadership Competency and Technology Coordinatorship

    Science.gov (United States)

    Banoglu, Koksal

    2011-01-01

    The aim of this study is to determine the primary and high school principals' competency in technology leadership and so to define implications for advanced competency. The population of the study was formed by 134 school principals in Maltepe and Kadikoy districts in Istanbul. On account of the fact that population was reachable, no specific…

  11. Converse Theorems for Safety and Barrier Certificates

    OpenAIRE

    Ratschan, Stefan

    2017-01-01

    An important tool for proving safety of dynamical systems is the notion of a barrier certificate. In this paper we prove that every robustly safe ordinary differential equation has a barrier certificate. Moreover, we show a construction of such a barrier certificate based on a set of states that is reachable in finite time.

  12. Corruption in the Civil Service: The dearth of effective service delivery

    African Journals Online (AJOL)

    The paper discussed the origin of the Nigerian Civil Service and the consequences of corruption that has crippled the service in the recent times. The paper was of the opinion that today's Civil Service in Nigeria is a carryover of the British imperialist administrative structure. The paper stated that the reasons for the corrupt ...

  13. 75 FR 59968 - Presumptions of Service Connection for Persian Gulf Service

    Science.gov (United States)

    2010-09-29

    ..., naval, or air service in the Southwest Asia theater of operations, or to a degree of 10 percent or more..., naval, or air service in the Southwest Asia theater of operations; or (ii) If there is affirmative..., naval, or air service in the Southwest Asia theater of operations during the Persian Gulf War. (2) The...

  14. IT service management - key to the quality of IT service delivering

    International Nuclear Information System (INIS)

    Recky, M.

    2004-01-01

    Objective of the contribution is to introduce IT service management (ITSM) as an approach to services quality improvement provided by IT departments of enterprises. As a result of massive application of information technologies in the past, the enterprises have become increasingly dependent on processes within IT of which many are critical for the business operations. Therefore it appears to be inevitable for IT organizations to become customer-oriented. ITSM's objective is to implement standardized and measurable IT services in every enterprise, to enable accurate service cost allocation and increase accuracy of planning of IT budget and investments. This method is based on processes definition, necessary technologies implementation and restructuralisation of human resources in IT organisations. It requires a change of attitude towards IT users who become IT department customers as well as cost-balanced utilization of in-sourcing and out-sourcing etc. Hewlett-Packard is a global leader offering its consulting and integration services in the area of IT service management together with an extensive portfolio of related technologies based on HP OpenView software platform. (author)

  15. Organizational capacity for service integration in community-based addiction health services.

    Science.gov (United States)

    Guerrero, Erick G; Aarons, Gregory A; Palinkas, Lawrence A

    2014-04-01

    We examined factors associated with readiness to coordinate mental health, public health, and HIV testing among community-based addiction health services programs. We analyzed client and program data collected in 2011 from publicly funded addiction health services treatment programs in Los Angeles County, California. We analyzed a sample of 14 379 clients nested in 104 programs by using logistic regressions examining odds of service coordination with mental health and public health providers. We conducted a separate analysis to examine the percentage of clients receiving HIV testing in each program. Motivational readiness and organizational climate for change were associated with higher odds of coordination with mental health and public health services. Programs with professional accreditation had higher odds of coordinating with mental health services, whereas programs receiving public funding and methadone and residential programs (compared with outpatient) had a higher percentage of clients receiving coordinated HIV testing. These findings provide an evidentiary base for the role of motivational readiness, organizational climate, and external regulation and funding in improving the capacity of addiction health services programs to develop integrated care.

  16. Blueprint for Incorporating Service Learning: A Basic, Developmental, K-12 Service Learning Typology

    Science.gov (United States)

    Terry, Alice W.; Bohnenberger, Jann E.

    2004-01-01

    Citing the need for a basic, K-12 developmental framework for service learning, this article describes such a model. This model, an inclusive typology of service learning, distinguishes three levels of service learning: Community Service, Community Exploration, and Community Action. The authors correlate this typology to Piaget's cognitive…

  17. The service dominant business model : a service focused conceptualization

    NARCIS (Netherlands)

    Lüftenegger, E.R.; Comuzzi, M.; Grefen, P.W.P.J.; Weisleder, C.A.

    2013-01-01

    Existing approaches on business model tools are constrained by the goods dominant way of doing business. Nowadays, the shift from goods based approaches towards a service dominant strategy requires novel business model tools specially focused for service business. In this report we present the

  18. Contributions of cultural services to the ecosystem services agenda

    NARCIS (Netherlands)

    Daniel, T.C.; Muhar, A.; Arnberger, A.; Aznar, O.; Boyd, J.W.; Chan, K.M.A.; Costanza, R.; Elmqvist, T.; Flint, C.G.; Gobster, P.H.; Grêt-Regamey, A.; Lave, R.; Muhar, S.; Penker, M.; Ribe, R.G.; Schauppenlehner, T.; Sikor, T.; Soloviy, I.; Spierenburg, M.J.; Taczanowska, K.; Tam, J.; Dunk, A. von der

    2012-01-01

    Cultural ecosystem services (ES) are consistently recognized but not yet adequately defined or integrated within the ES framework. A substantial body of models, methods, and data relevant to cultural services has been developed within the social and behavioral sciences before and outside of the ES

  19. Over-servicing

    African Journals Online (AJOL)

    The definition of 'over-servicing' in the Guidelines can assist in defining a meaning for ... As South Africa (SA) has no ethical guidelines for practitioners defining ... principle applies to referrals to another healthcare practitioner for a service or a procedure ... 'Underservicing' generally means failing to provide a patient with.

  20. Coproduction of healthcare service.

    Science.gov (United States)

    Batalden, Maren; Batalden, Paul; Margolis, Peter; Seid, Michael; Armstrong, Gail; Opipari-Arrigan, Lisa; Hartung, Hans

    2016-07-01

    Efforts to ensure effective participation of patients in healthcare are called by many names-patient centredness, patient engagement, patient experience. Improvement initiatives in this domain often resemble the efforts of manufacturers to engage consumers in designing and marketing products. Services, however, are fundamentally different than products; unlike goods, services are always 'coproduced'. Failure to recognise this unique character of a service and its implications may limit our success in partnering with patients to improve health care. We trace a partial history of the coproduction concept, present a model of healthcare service coproduction and explore its application as a design principle in three healthcare service delivery innovations. We use the principle to examine the roles, relationships and aims of this interdependent work. We explore the principle's implications and challenges for health professional development, for service delivery system design and for understanding and measuring benefit in healthcare services. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/