Year 2024

• Fault detection in the marine engine using a support vector data description method

  Publication

  • K. Wrzask
  • J. Kowalski
  • V. V. Le
  • V. B. Nguyen
  • D. N. Cao

  - Journal of Marine Engineering and Technology - Year 2024

  Fast detection and correct diagnosis of any engine condition changes are essential elements of safety andenvironmental protection. Many diagnostic algorithms significantly improve the detection of malfunctions.Studies on diagnostic methods are rarely reported and even less implemented in the marine engine industry.To fill this gap, this paper presents the Support Vector Data Description (SVDD) method as applied to thefault detection...

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Year 2023

• Vessel Energy Requirement Prediction from Acceleration Stage Towing Tests on Scale Models

  Publication

  • K. Wrzask

  - Polish Maritime Research - Year 2023

  One of the most crucial tasks for naval architects is computing the energy required to meet the ship’s operational needs. When predicting a ship’s energy requirements, a series of hull resistance tests on a scale model vessel is carried out in constant speed stages, while the acceleration stage measurements are ignored. Another important factor in seakeeping analysis is the ship’s hydrodynamic added mass. The second law of dynamics...

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Year 2014

• Lekcja z e-doświadczeniem :Obwody prądu stałego

  Publication

  • I. Linert
  • K. Wrzask
  • P. Jasik
  • P. Syty

  - Fizyka w Szkole - Year 2014

  artykuł ma na celi pokazanie i zachęcenie do głębszego zapoznania się z e-doświadczeniami dot. obwodów prądu stałego

Year 2009

• Automatic Regularization by Quantization in Reducible Representations of CCR: Point-Form Quantum Optics with Classical Sources

  Publication

  • M. Czachor
  • K. Wrzask

  - INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS - Year 2009

  Electromagnetic fields are quantized in a manifestly covariant way by means ofa class of reducible "center-of-mass N-representations" of the algebra of canonical commutationrelations (CCR). The four-potential Aa(x) transforms in these representations as aHermitian four-vector field in Minkowski four-position space (without change of gauge), butin momentum space it splits into spin-1 massless photons and two massless scalars. Whatwe...

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