Vol. 69 No. 4 (2021): (i.a. Special Section on Computer Science vs. COVID-19)

Articles

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• Computer Science vs. COVID-19

  Aneta Afelt, Aleksander Byrski, Victor Calo, Tyll Krüger, Lech Madeyski, Wojciech Penczek

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• Leveraging cloud environment flexibility to smoothen the transition to remote teaching during COVID-19 pandemic – a case study

  Łukasz Czekierda, Filip Malawski, Robert Straś, Krzysztof Zieliński, Sławomir Zieliński

  e137934

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• The impact of the COVID-19 pandemic on cybercrime

  Agnieszka Gryszczyńska

  e137933

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• A survey of requirements for COVID-19 mitigation strategies

  Wojciech Jamroga, David Mestel, Peter B. Roenne, Peter Y.A. Ryan, Marjan Skrobot

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• Analyzing and improving tools for supporting fighting against COVID-19 based on prediction models and contact tracing

  Martyna Gruda, Michal Kedziora

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• Extensions for Apple-Google exposure notification mechanism

  Adam Bobowski, Jacek Cichoń, Mirosław Kutyłowski

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• Enhancement of COVID-19 symptom-based screening with quality-based classifier optimisation

  Michał Kozielski, Joanna Henzel, Joanna Tobiasz, Aleksandra Gruca, Paweł Foszner, Joanna Zyla, Małgorzata Bach, Aleksandra Werner, Jerzy Jaroszewicz, Joanna Polańska, Marek Sikora

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• Microscopic simulation of pedestrian traffic in urban environment under epidemic conditions

  Mateusz Paciorek, Damian Poklewski-Koziełł, Kinga Racoń-Leja, Aleksander Byrski, Mateusz Gyurkovich, Wojciech Turek

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• Three-dimensional simulations of the airborne COVID-19 pathogens using the advection-diffusion model and alternating-directions implicit solver

  Marcin Łoś, Maciej Woźniak, Ignacio Muga, Maciej Paszynski

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• Research on hybrid modified pathfinder algorithm for optimal reactive power dispatch

  Suresh V. , Senthil Kumar S.

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• Detection and classification of short-circuit faults on a transmission line using current signal

  Melih Coban, Suleyman S. Tezcan

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• Power supply with parallel reactive and distortion power compensation and tunable inductive filter — Part 2

  Michał Gwóźdź, Rafał Wojciechowski, Łukasz Ciepliński

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• Selected requirements for lightning protection in the light of actual standards and regulations on the example of an object to be protected

  Anna Dąda, Paweł Błaut, Piotr Miller

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• Predictive torque control of induction motor drive with reduction of torque and flux ripple

  Babak Kiani, Babak Mozafari, Soodabeh Soleymani, Hosein Mohammadnezhad Shourkaei

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• The real-time simulator using MATLAB/Simulink software for closed-loop coordination protection devices testing

  Adam Smolarczyk, Sebastian Łapczyński, Michał Szulborski, Łukasz Kolimas, Łukasz Kozarek

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• Positive electrical circuits with the chain structure and cyclic Metzler state matrices

  Tadeusz Kaczorek

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• Data irregularities in discretisation of test sets used for evaluation of classification systems: A case study on authorship attribution

  Urszula Stańczyk, Beata Zielosko

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• Time invariant property of weighted circular convolution and its application to continuous wavelet transform

  Hua Yi, Yu-Le Ru, Yin-Yun Dai

  e137726

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• An enhanced performance evaluation of workflow computing and scheduling using hybrid classification approach in the cloud environment

  Tharani P., Kalpana A.M.

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• Topology optimization without volume constraint – the new paradigm for lightweight design

  Michał Nowak, Aron Boguszewski

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• Identification of longitudinal aerodynamic characteristics of a strake-wing micro aerial vehicle by using artificial neural networks

  Dariusz Rykaczewski, Mirosław Nowakowski, Krzysztof Sibilski, Wiesław Wróblewski, Michał Garbowski

  e137508

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• Comparison of algorithms for satellite attitude determination using data from visual sensors

  Janusz Narkiewicz, Mateusz Sochacki, Adam Rodacki, Damian Grabowski

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• Modeling and parametric optimization of friction stir welding of aluminium alloy AA7068-T6 using response surface methodology and desirability function analysis

  Bindu M.D., Tide P.S. , Bhasi A.B. , Ramachandran K.K.

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• Technology for porous ammonium nitrate production: modeling of drying machines’ operating modes

  Nadiia Artyukhova, Jan Krmela, Artem Artyukhov, Vladimíra Krmelová, Mária Gavendová, Alžbeta Bakošová

  e137585

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• Fusion reaction study of halo system by quantum mechanical-based model for ⁶He+⁶⁴Zn, ⁸B+⁵⁸Ni and 8He+¹⁹⁷Au systems

  Maryam H. Abd Madhi, Fouad A. Majeed

  e137734

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• Characterization of oxide layers formed on 10CrMo9-10 steel operated for a long time in the power industry

  Monika Gwoździk, Christiane Ullrich, Christian Schimpf, David Rafaja, Sławomir Kulesza, Mirosław Bramowicz

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• Cavitation erosion of electrostatic spray polyester coatings with different surface finish

  Mirosław Szala, Aleksander Świetlicki, Weronika Sofińska-Chmiel

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• Semiquantum authentication of users resistant to multisession attacks

  Piotr Zawadzki

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• Retraction notice Machining of microholes in Ti-6Al-4V by hybrid micro-electrical discharge machining to improve process parameters and flushing properties

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