A time division switch for an electronic private branch exchange

Herndon, J. A.; Tendick, F. H.

doi:10.1109/tcome.1964.6541234

Cited by 5 publications

(4 citation statements)

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“…As the Tevatron limits include contributions from Higgs production in association with gauge bosons, and also from weak-boson fusion production of the Higgs, it is not possible to simply scale current exclusion limits by the ratio of the gluon-fusion production cross section with the scalar over that of the SM. The Tevatron collaborations plan to release limits utilizing only the gluon-fusion mode to make this scaling possible [37]. However, it is likely that scalar masses in excess of the expected direct-search limits can be probed.…”

Section: Results For the Tevatron And The Lhcmentioning

confidence: 99%

Color-octet scalar effects on Higgs boson production in gluon fusion

Boughezal

Petriello

2010

Phys. Rev. D

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We compute the next-to-next-to-leading-order QCD corrections to the gluon-fusion production of a Higgs boson in models with massive color-octet scalars in the (8,1)0 representation using an effectivetheory approach. We derive a compact analytic expression for the relevant Wilson coefficient, and explain an interesting technical aspect of the calculation that requires inclusion of the quartic-scalar interactions at next-to-next-to-leading order. We perform a renormalization-group analysis of the scalar couplings to derive the allowed regions of parameter space, and present phenomenological results for both the Tevatron and the LHC. The modifications of the Higgs production cross section are large at both colliders, and can increase the standard model rate by more than a factor of 2 in allowed regions of parameter space. We estimate that stringent constraints on the color-octet scalar parameters can be obtained using the ANL-HEP-PR-10-6Color-octet scalar effects on Higgs boson production in gluon fusion Radja BoughezalInstitute for Theoretical Physics, University of Zurich, Winterthurerstr. 190, 8057 Zurich, Abstract: We compute the next-to-next-to-leading order QCD corrections to the gluonfusion production of a Higgs boson in models with massive color-octet scalars in the (8, 1) 0 representation using an effective-theory approach. We derive a compact analytic expression for the relevant Wilson coefficient, and explain an interesting technical aspect of the calculation that requires inclusion of the quartic-scalar interactions at next-to-next-to-leading order. We perform a renormalization-group analysis of the scalar couplings to derive the allowed regions of parameter space, and present phenomenological results for both the Tevatron and the LHC. The modifications of the Higgs production cross section are large at both colliders, and can increase the Standard Model rate by more than a factor of two in allowed regions of parameter space. We estimate that stringent constraints on the color-octet scalar parameters can be obtained using the Tevatron exclusion limit on Higgs production.

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Section: Results For the Tevatron And The Lhcmentioning

confidence: 99%

Color-octet scalar effects on Higgs boson production in gluon fusion

Boughezal

Petriello

2010

Phys. Rev. D

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“…Electron and muon identification efficiencies are assumed to be 0.9 in the range |η| < 1.5 [34]. In the event selection presented in Section 3.4, b-tagging capabilities are used.…”

Section: Generation Of Relevant Processesmentioning

confidence: 99%

“…It is assumed that the b-tagging efficiency is 0.5 for |η| < 1. In the forward region (1< |η| < 1.9) the b-tagging efficiency is parameterized with a linear function 1.05 − 0.55 |η| [34].…”

Section: Generation Of Relevant Processesmentioning

confidence: 99%

Feasibility of Searches for a Higgs Boson using H->WW->ll+MET and High PT Jets at the Tevatron

Mellado,

Quayle,

2007

Preprint

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The sensitivity of Standard Model Higgs boson searches at the Tevatron experiments with a mass 135 < M H < 190 GeV/c 2 using the channel H → W + W − → l + l − / p T (l = e, µ) is discussed. Three new event selections involving Higgs in association with one or two high P T hadronic jets are discussed. Using Leading Order Matrix Elements and a conservative cut-based analysis a 95 % confidence level exclusion on σ × B(H → W + W − ), 1.6 times larger than that predicted by the Standard Model for M H = 165 GeV/c 2 , may be achieved with 5 fb −1 of integrated luminosity. By combining these three event selections with the existing analysis, the sensitivity of CDF and D0 could improve significantly.

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“…Private Branch Exchange (PBX) is a TDM, a telephony system that primarily focuses on providing a private, within-organization, calling facility, i.e., extension-to-extension, while having a limited number of shared lines to Public-Switched Telephone Networks (PSTN) or Cellular Mobile Operators (CMO) for outward dialing, mostly opened on specific extensions and with the use of a predefined code [1][2][3][4]. PBX is an old-fashioned technology consisting of different modules/cards inserted in a cabinet to support multiple services, and requires a proper wired infrastructure for each extension to work, meaning a complex and cumbersome wiring network should be laid before using the traditional PBX.…”

Section: Introduction 1private Branch Exchange (Pbx)mentioning

confidence: 99%

Performance Analysis of Raspberry Pi 3 IP PBX Based on Asterisk

Khan

Fahad

Bilal³

et al. 2022

Electronics

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IP-PBX have grown considerably in the telecoms and IT industries in recent times due to their low cost, high customizability, open source and hardware-independent nature. Unlike traditional PBX systems that are TDM-based and require a separate wired infrastructure to operate, an IP PBX can be attached to the local LAN and uses SIP with RTP over Internet Protocol (IP) for signaling and data transport, respectively. Asterisk-based IP PBX has become a de facto standard for open-source low-to-medium calling capacity requirements. Single Board Computers (SBCs) are attracting considerable attention from academics, hobbyists and the industry, due to their compact size, low cost, low power, portability and fair processing ability. Raspberry Pi series SBCs are the pioneer in the field, having Pi, Pi2, Pi3 and Pi Zero in production, supporting different processing and storage capabilities. An IP PBX embedded on the raspberry Pi SBC can serve an adequate number of users and provide a tiny platform that can fit in a pocket and be transported anywhere while preserving the functionality of a complete IP PBX. Such systems can be phenomenally successful in situations where large infrastructures cannot be taken, for instance, in warzones or disaster-affected areas where communication networks are damaged, necessitating an immediate requirement for an ad hoc-based communication system. In this paper, we aim to explore the performance of an Asterisk®-based IP PBX installed on a Raspberry Pi 3 (model B) platform in terms of concurrent call handling using different codecs.

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A time division switch for an electronic private branch exchange

Cited by 5 publications

References 0 publications

Color-octet scalar effects on Higgs boson production in gluon fusion

Color-octet scalar effects on Higgs boson production in gluon fusion

Feasibility of Searches for a Higgs Boson using H->WW->ll+MET and High PT Jets at the Tevatron

Performance Analysis of Raspberry Pi 3 IP PBX Based on Asterisk

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