3,202 research outputs found

    What drives business process standardization? A case study approach

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    Business process standardization is of growing importance for both researchers and practitioners alike. Corporate experts and process owners meanwhile consider business process standards to be a prime action item and major instrument in a firm\u27s BPM toolkit. An increasing number of scientific publications also show a growing interest of the scientific community. But to date IS research on business process standardization most notably is focused on the impact of business process standardization on business process performance abstracting away from a concise analysis of their antecedents. Therefore in this paper – based on an exploratory case study from healthcare industry – we provide a research model presenting three major antecedents of business process standardization: Top management support, involvement of the HR-, business- and IT departments and organizational governance/topology. As this approach is conceptual in nature future research should empirically evaluate our framework

    Study of built-in amplifier performance on HV-CMOS sensor for the ATLAS phase-II strip tracker upgrade

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    This paper focuses on the performance of analog readout electronics (built-in amplifier) integrated on the high-voltage (HV) CMOS silicon sensor chip, as well as its radiation hardness. Since the total collected charge from minimum ionizing particle (MIP) for the CMOS sensor is 10 times lower than for a conventional planar sensor, it is crucial to integrate a low noise built-in amplifier on the sensor chip to improve the signal to noise ratio of the system. As part of the investigation for the ATLAS strip detector upgrade, a test chip that comprises several pixel arrays with different geometries, as well as standalone built-in amplifiers and built-in amplifiers in pixel arrays has been fabricated in a 0.35 μm high-voltage CMOS process. Measurements of the gain and the noise of both the standalone amplifiers and built-in amplifiers in pixel arrays were performed before and after gamma radiation of up to 60 Mrad. Of special interest is the variation of the noise as a function of the sensor capacitance. We optimized the configuration of the amplifier for a fast rise time to adapt to the LHC bunch crossing period of 25 ns, and measured the timing characteristics including jitter. Our results indicate an adequate amplifier performance for monolithic structures used in HV-CMOS technology. The results have been incorporated in the next submission of a large-structure chip

    Charge collection studies in irradiated HV-CMOS particle detectors

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    Charge collection properties of particle detectors made in HV-CMOS technology were investigated before and after irradiation with reactor neutrons. Two different sensor types were designed and processed in 180 and 350 nm technology by AMS. Edge-TCT and charge collection measurements with electrons from 90Sr source were employed. Diffusion of generated carriers from undepleted substrate contributes significantly to the charge collection before irradiation, while after irradiation the drift contribution prevails as shown by charge measurements at different shaping times. The depleted region at a given bias voltage was found to grow with irradiation in the fluence range of interest for strip detectors at the HL-LHC. This leads to large gains in the measured charge with respect to the one before irradiation. The increase of the depleted region was attributed to removal of effective acceptors. The evolution of depleted region with fluence was investigated and modeled. Initial studies show a small effect of short term annealing on charge collection

    Search for the Standard Model Higgs boson produced in association with top quarks and decaying into bb in pp collisions at √s =8TeV with the ATLAS detector

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    A search for the Standard Model Higgs boson produced in association with a top-quark pair, tt ¯ H , is presented. The analysis uses 20.3 fb−1 of pp collision data at s √ =8TeV , collected with the ATLAS detector at the Large Hadron Collider during 2012. The search is designed for the H→bb ¯ decay mode and uses events containing one or two electrons or muons. In order to improve the sensitivity of the search, events are categorised according to their jet and b-tagged jet multiplicities. A neural network is used to discriminate between signal and background events, the latter being dominated by tt ¯ +jets production. In the single-lepton channel, variables calculated using a matrix element method are included as inputs to the neural network to improve discrimination of the irreducible tt ¯ +bb ¯ background. No significant excess of events above the background expectation is found and an observed (expected) limit of 3.4 (2.2) times the Standard Model cross section is obtained at 95 % confidence level. The ratio of the measured tt ¯ H signal cross section to the Standard Model expectation is found to be μ=1.5±1.1 assuming a Higgs boson mass of 125GeV

    Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector

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    A search for the bb¯ decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb−1 from pp collisions at s√=7 and 8 TeV, respectively. The processes considered are associated (W/Z)H production, where W → eν/μν, Z → ee/μμ and Z → νν. The observed (expected) deviation from the background-only hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be μ = 0.52 ± 0.32 (stat.) ± 0.24 (syst.) for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of (W/Z)Z production with Z→bb¯ in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be 0.74 ± 0.09 (stat.) ± 0.14 (syst.)

    When standards is not enough to secure interoperability and competitiveness for European exporters

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    What is the impact of a Service-oriented Architecture (SOA) on the efficiency and effectiveness of business process standardization (BPS)? The contribution of this paper is the development of a research model around the impact of SOA on BPS in terms of achieving fundamental efficiency and flexibility potentials while covering both the business layer and the IT layer of the firm. Drawing on an accepted and widespread enterprise architecture model, we derive propositions that explain why and how SOA’s characteristics help to standardize business processes and how the interplay between SOA and BPS leads to an increased overall business value. Additional moderator arguments, such as the level of service granularity, the centrality of SOA governance, or Business IT alignment, are added to the research model as critical success factors of achieving business value of SOA
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