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Wideband and multiband antennas for multi-configuration mode applications
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Testing for convergence in stock markets : a non-linear factor approach
Published 2009“…In the case of sectoral indices we find convergence in the middle of the sample period, followed by divergence, and detect four (two large and two small) clusters. …”
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Interest and exchange rate risk and stock returns : a multivariate GARCH-M modelling approach
Published 2008“…The econometric framework is a four-variate GARCH-in-mean model, which incorporates long-and short-term interest rates in turn. We find in most cases a positive effect of stock market returns on mean returns in each sector; by contrast, interest rates and exchange rates have a significant effect only in a few cases, respectively negative and without a clear sign pattern. …”
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Land remediation, event spaces and the pursuit of Olympic legacy
Published 2020“…In particular, it considers ways in which redevelopment of the sizeable spaces prepared for staging the event take their place in broader strategies intended to bring long-term benefits to the host city and society in order to compensate for the costs and inconvenience originally incurred in hosting the Games. …”
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3rd order coupled-resonator bandpass filter assisted by Groove Gap-Waveguide technology for 26-GHz radio link diplexer
Published 2025“…Its unit-cells consist of a rectangular metal-pin which is connected to a bottom metal plate and its other side is electromagnetically coupled to a top plate with an air-gap of approximately λ/4 that creates a bandgap, preventing unwanted electromagnetic-wave propagation. …”
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Electronically reconfigurable and conformal triband antenna for wireless communications systems and portable devices
Published 2022“…This is achieved by connecting two open-ended stubs to a modified triangular patch radiator using PIN diodes. The antenna’s performance was optimized using a 3D electromagnetic solver and its performance was verified through measurements. …”
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A Novel MIMO antenna integrated with a solar panel and employing AI-equalization for 5G wireless communication networks
Published 2024“…We demonstrate that the directivity of this antenna array can be precisely electronically reconfigured using PIN diode switches. Additionally, we show the feasibility of integrating solar panels with the proposed MIMO antenna array. …”
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Promoting the Individual Learning Styles of Masters Students Studying Marketing-related Modules through the Use of YouTube Video-Clips
Published 2007“…It is often hard for academics to find resource material, particularly visual material for new and emerging disciplines; particularly when Universities are developing courses faster than teaching materials are made generally available. …”
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Meeting the challenges of chemical and biological weapons: strengthening the chemical and biological disarmament and non-proliferation regimes
Published 2022“…During this century despite the agreement of some positive measures to strengthen these Disarmament and Non-Proliferation Regimes, there is little doubt that both are facing considerable difficulties at present. However, there is a long and diverse tradition of civil society efforts to help strengthen these regimes and there is some hope that, following the dangers from biological agents exposed in the pandemic, States Parties will be able to find ways to improve the protection afforded by the two Conventions. …”
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Rural transformation and productivity in China
Published 2008“…This paper carries out for the first time an econometric investigation of the contribution of rural transformation to total factor productivity in China. We find that the efficiency gains resulting from rural transformation make a significant and nontrivial contribution to factor productivity in China. …”
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Persistence and cycles in the US federal funds rate
Published 2012“…This paper uses long-range dependence techniques to analyse two important features of the US Federal Funds effective rate, namely its persistence and cyclical behaviour. …”
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The equilibrium real effective exchange rate of China : a NATREX approach
Published 2008“…However the misalignment rates are much lower than those reported by previous studies. We also find weak evidence of overvaluation for most of the pre-reform period. …”
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A comprehensive survey on ‘‘various decoupling mechanisms with focus on metamaterial and metasurface principles applicable to SAR and MIMO antenna systems’’
Published 2020“…Such techniques include the use of defected ground structure (DGS), parasitic or slot element, dielectric resonator antenna (DRA), complementary split-ring resonators (CSRR), decoupling networks, P.I.N or varactor diodes, electromagnetic bandgap (EBG) structures, etc. …”
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