6,761,689 research outputs found

    Performance Optimization Model of Stock Mutual Funds Based Financial Information System

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    The lack of public information on how to invest tobe a major cause of the lack of public interest on capitalmarket investment. Besides of that, for the certaininstrument such as mutual funds of society will getdifficulty in judging and choosing the mutual funds whichbe able to give optimal performance and benefit influencesthe slowness of mutual funds development.Result from this research activity is for finding themeasurement of the performance mutual funds stock byusing stage of stock rotation and stage of stock mutual fundwhich is made to be a accounting management informationsystem and financial. With this stock mutual fundperformance measurement model so that can be tool ofimportant information for investor, society about theinvestment will have good potency of financial and themajor elements causeof the performance of that mutualfunds in capital market. Therefore, society can value andchoose mutual fund which be able to give performance andoptimalization in benefit especially in capital market.Explanatory research, this research has the goal to explainthe relationship between the research variable through thehypotheses based on the data, such as: rotation stage andrisk stage concerning the stock of mutual fund performance.Multiple regression analysis will be used to test the effectof two or more independent variables on the dependentvariable . independent variable in this research is rotationstage and risk stage. Meanwhile in independent variable isthe stock mutual fund performance. The research result forthe simulation of measuring stock of mutual funds model,to measure the stock mutual funds performance

    Integrative Model of Performance Improvement

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    The study was intended to prove, develop and find the relationship between motivation, performance, job satisfaction and equity of rewards. The population in this study were 7629 teachers in Badung regency. The research respondents were 99 as random sampling. Data analysis technique was used PLS-vers3 with quantitative approach. The intrinsic motivation has a stronger influence compared to extrinsic motivation in influencing performance and job satisfaction. The performance has a positive and significant impact on job satisfaction, in accordance with the meaning of Sloka Bhagavadgita (BG) III: 19, which stated the recommended way of working was to perform work as a liability and without attachment to results. The performance mediated the effect of motivation on job satisfaction partially. The reward equity was as a moderator/strengthening the effect of performance on job satisfactio

    Model-driven performance evaluation for service engineering

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    Service engineering and service-oriented architecture as an integration and platform technology is a recent approach to software systems integration. Software quality aspects such as performance are of central importance for the integration of heterogeneous, distributed service-based systems. Empirical performance evaluation is a process of measuring and calculating performance metrics of the implemented software. We present an approach for the empirical, model-based performance evaluation of services and service compositions in the context of model-driven service engineering. Temporal databases theory is utilised for the empirical performance evaluation of model-driven developed service systems

    BowScribe: Supporting the violinist's performance model

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    Musicians often learn about their vision of a piece through practicing it and listening to recordings. However, this does not always free the player to develop his or her own interpretation of the piece, especially when technique is lacking. We have developed software, the BowScribe markup language, that supports a violinist in creating a ``performance model'' of a piece currently beyond his or her playing skills, by allowing the player fine control over tempo, volume, and articulation, including playing of chords, at a level of expressiveness and flexibility that is significantly beyond the MIDI playback modes of popular music notation software. BowScribe has been used by the first author (who was trained as a prfessional violinist) to create a model of the entire Bach Chaconne (edited by Glamian), a long and demanding piece of music for solo violin that has many phrases that span groups of chords as well as melodic passages. The markup language specified chords to be rolled in two classic ways, as well as a wide variety of other strokes, including greater volume for individual notes in long slurs and small but essential variations in tempo

    Model-based vs. model-free visual servoing: A Performance evaluation in microsystems

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    In this paper, model-based and model-free image based visual servoing (VS) approaches are implemented on a microassembly workstation, and their regulation and tracking performances are evaluated. A precise image based VS relies on computation of the image jacobian. In the model-based visual servoing, the image Jacobian is computed via calibrating the optical system. Precisely calibrated model based VS promises better positioning and tracking performance than the model-free approach. However, in the model-free approach, optical system calibration is not required due to the dynamic Jacobian estimation, thus it has the advantage of adapting to the different operating modes

    Equivalent Circuit Model of High-Performance VCSELs

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    In this work, a general equivalent circuit model based on the carrier reservoir splitting approach in high-performance multi-mode vertical-cavity surface-emitting lasers (VCSELs) is presented. This model accurately describes the intrinsic dynamic behavior of these VCSELs for the case where the lasing modes do not share a common carrier reservoir. Moreover, this circuit model is derived from advanced multi-mode rate equations that take into account the effect of spatial hole-burning, gain compression, and inhomogeneity in the carrier distribution between the lasing mode ensembles. The validity of the model is confirmed through simulation of the intrinsic modulation response of these lasers.DFG, 43659573, SFB 787: Halbleiter - Nanophotonik: Materialien, Modelle, BauelementeDFG, 414044773, Open Access Publizieren 2019 - 2020 / Technische Universität Berli

    Shortcut model for predicting refrigeration cycle performance

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    Compression refrigeration systems are very widely used to provide cooling to sub-ambient processes. The power demand of the cycle depends strongly on the temperature at which cooling is required, the temperature at which the refrigerant is condensed, as well as the type of refrigerant being used. At lower temperatures (typically lower than -40 °C), complex refrigeration schemes, such as cascaded refrigeration cycles, may be needed, increasing the complexity of the models used to predict the power requirements for a given cooling demand. This work proposes a simple model for predicting the power consumption of such complex cycles, based on regression of more rigorous process simulation models. A simple linear refrigeration model which relates the actual power demand of a refrigeration cycle to the ideal performance (i.e. the Carnot cycle) is developed. The model predicts the power demand prior to design of the refrigeration scheme given the condensing and evaporation temperatures of the refrigerant. The model predictions are shown to be in good agreement with those of more accurate simulation models. Case studies demonstrate the validity of the refrigeration model. The predicted power demand is shown to be within 10 % of that of Branan (2005). The simplicity of the model enables its use for optimizing the design conditions of a complex refrigeration cycle and/or the associated processing conditions
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