• On Minimum Sensitivity Reflectometers 

  Ladvánszky, János; Hilt, Attila; Zoller, Vilmos; Csonka, István (1995)

  The equation f(x, x1, x2, x3)=f(y, y1, y2, y3) is considered that characterizes the relation between the measured reflection coefficient x, the calibrating reflection coefficients x1, x2, x3 and the corresponding values ...

• High-Frequency Electro-Optical Model for MESFETs 

  Baranyi, András; Berceli, Tibor; Hilt, Attila; Ladvánszky, János (1993)

• Mobile Network Upgrade for EDGE in Hungary 

  Petrás, Péter; Hilt, Attila; Suuronen, Mira (2005)

  Early GSM networks are getting older than a decade. First generation mobile systems cannot fully satisfy actual user expectations. New services like WAP, mobile internet, video streaming, etc. require higher capacity and ...

• Microwave Network Analysis Extended to Optical Systems 

  Hilt, Attila; Udvary, Eszter; Berceli, Tibor (2005)

  Microwave (MW) network analysis of optical circuits and systems is discussed in the paper. MW responses of some basic optical structures are shown in frequency and time domain. Some fundamental differences between network ...

• Gain and Noise Optimization of an Optical Receiver Utilizing a Distributed Amplifier 

  Járó, Gábor; Berceli, Tibor; Hilt, Attila; Zólomy, Attila (1997)

  In wideband optical communications the bandwidth and the noise of optical receivers are crucial problems. The application of a distributed amplifier instead of a transimpedance amplifier in an optical receiver has the ...

• Microwave Distributed Amplifier in Hybrid Integrated Technology 

  Zólomy, Attila; Hilt, Attila; Baranyi, András; Járó, Gábor (1997)

  In the paper the gain-bandwidth relations of microwave distributed amplifiers are analyzed. It is shown that in case of proper realization corresponding to distributed amplifier (DA) requirements the amplifier gain and ...

• Blowing the Top on Parametric Resonance: Relief Valve Control for the Stabilisation of an OWC Spar Buoy 

  Davidson, Josh; Gomes, Rui P. F.; Galeazzi, Roberto; Henriques, João C. C. (American Society of Mechanical Engineers, 2020-12-18)

  An active control method, to suppress the onset of pitch/roll parametric resonance on an oscillating water column (OWC) spar buoy, is proposed in this paper, which utilises a pressure relief valve at the top of the OWC ...

• Nonlinear Dynamic and Kinematic Model of a Spar-Buoy: Parametric Resonance and Yaw Numerical Instability 

  Giorgi, Giuseppe; Davidson, Josh; Habib, Giuseppe; Bracco, Giovanni; Mattiazzo, Giuliana; Kalmár-Nagy, Tamás (2020-07-09)

  Mathematical models are essential for the design and control of offshore systems, to simulate the fluid–structure interactions and predict the motions and the structural loads. In the development and derivation of the ...

• A Real-Time Detection System for the Onset of Parametric Resonance in Wave Energy Converters 

  Davidson, Josh; Kalmár-Nagy, Tamás (2020-10-20)

  Parametric resonance is a dynamic instability due to the internal transfer of energy between degrees of freedom. Parametric resonance is known to cause large unstable pitch and/or roll motions in floating bodies, and has ...

• Investigation of Turbulence Modeling for Point-Absorber-Type Wave Energy Converters 

  Windt, Christian; Davidson, Josh; Ringwood, John V. (2020-12-23)

  Reviewing the literature of CFD-based numerical wave tanks for wave energy applications, it can be observed that different flow conditions and different turbulence models are applied during numerical wave energy converter ...

• Numerical analysis of the hydrodynamic scaling effects for the Wavestar wave energy converter 

  Windt, Christian; Davidson, Josh; Ringwood, John V. (2021-06-19)

  Scaled model tests are an important step during the research and development of wave energy converters (WECs). While such scaled model tests in physical wave tanks are prone to undesired scaling effects due to e.g. ...

• Efficient Nonlinear Hydrodynamic Models for Wave Energy Converter Design: A Scoping Study 

  Davidson, Josh; Costello, Ronan (2020-01-11)

  This review focuses on the most suitable form of hydrodynamic modeling for the next generation wave energy converter (WEC) design tools. To design and optimize a WEC, it is estimated that several million hours of operation ...

• Opening the air‐chamber of an oscillating water column spar buoy wave energy converter to avoid parametric resonance 

  Davidson, Josh; Henriques, João C. C.; Gomes, Rui P. F.; Galeazzi, Roberto (2021-05-27)

  The oscillating-water-column (OWC) spar-buoy is a type of wave energy converter that may exhibit undesirable large roll and pitch amplitudes caused by a dynamic instability induced by parametric resonance. The occurrence ...

• Bayesian Network Multimorbidity Models in COVID-19 Mortality 

  Nagy, Tamás; Bruncsics, Bence; Antal, Péter (2021)

  Clusters of multimorbidities indicate common molecular and physiological causal mechanisms, which can help to identify promising targets for novel drugs and treatments. We analyzed the comorbidities for COVID-19 death cases ...

• Local and global causal discovery methods for observational data with discrete variables 

  Vetró, Mihály; Hullám, Gábor (2021)

  Identifying causal relationships based on observational data is challenging, because in the absence of interventions (i.e. experiments), causal discovery algorithms have to tackle the problem of observational equivalence. ...

• Model-Driven Development of Heterogeneous Cyber-Physical Systems 

  Csuvarszki, János Csanád; Graics, Bence; Vörös, András (2021)

  Cyber-physical systems (CPS) are becoming more prevalent for the reliable execution of critical tasks, e.g., in the aerospace and medical fields. The development of such systems is challenging, due to the heterogeneity of ...

• Compensation of the major drawback of oscillometric blood pressure measurement 

  Nagy, Péter; Jobbágy, Ákos (2021)

  Oscillometric blood pressure measurement is one of the most commonly used methods to estimate the state of the cardiovascular system. Despite its widespread use, accuracy of the oscillometric method is influenced by several ...

• Towards Interactive Learning for Model-based Software Engineering 

  Barcsa-Szabó, Áron; Várady, Balázs; Farkas, Rebeka; Molnár, Vince; Vörös, András (2021)

  Model-based technologies improve the efficiency of the design and development of IT systems by making it possible to automate verification, code generation and system analysis based on a formal model. A simple way of ...

• Investigating Static Analyzers Detection Capabilities on Ethereum Smart Contracts 

  Staderini, Mirko; Bondavalli, Andrea (2021)

  Ethereum smart contracts had ever-increasing development in recent years. Hidden vulnerabilities can not be patched once a smart contract is deployed on a blockchain because of the code immutability. The use of static ...

• Using Auction Mechanism for Assigning Parking Lots to Autonomous Vehicles 

  Alekszejenkó, Levente; Dobrowiecki, Tadeusz (2021)

  Considering that the Connected Autonomous Vehicles (CAVs) of the future can choose arbitrary parking lots when being idle, parking lot assignment for CAVs will be a challenging task. Auctions are computationally efficient ...

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