Search results for: WHITTAKER FILTER

• An orthogonality relation for the Whittaker functions of the second kind of imaginary order

  Publication

  • R. Szmytkowski
  • S. Bielski

  - INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS - Year 2010

  Przeprowadzono dowód ortogonalności funkcji Whittakera drugiego rodzaju rzędu urojonego. Użyto metody analogicznej do tej, którą zaprezentowano we wcześniejszej pracy tych samych autorów [J. Math. Anal. Appl. 365 (2010) 195-197], poświęconej funkcjom Macdonalda rzędu urojonego.

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• Multivariate models of inter-resonator couplings for microwave filter synthesis

  Publication

  • A. Lamęcki
  • Ł. Balewski
  • M. Mrozowski

  - Year 2005

  Artykuł przedstawia technikę budowy modeli częstotliwości rezonansowej, współczynnika sprzężenia między rezonatorami oraz sprzężenia ze źródłem/obciążeniem. Przedstawiony jest model siedmiu zmiennych uwzglęgniający topologię rezonatorów. Na podstawie modelu wykonana została synteza filtrów mikrofalowych.

• The silver layers in fiber-optic sensors

  Publication

  • P. Listewnik
  • M. Aydoğan
  • D. Majchrowicz
  • M. Szczerska

  - Year 2017

  In this paper a method of application of the silver layers on the surface of an optical fiber was proposed. The optical properties and surface quality of the silver layer was examined by optical microscopy. The reflection and transmission of the sample were investigated. To evaluate the silver mirror it was placed in a fiber optic Fabry-Perot interferometer and the quality of the spectra was analyzed. The commercial mirror was...

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• A filter bank solution for active power filter control algorithms

  Publication

  • K. Sozanski
  • R. Strzelecki

  - Year 2003

  Thb paper describes the proposed active power fiIter (APF) with a new control circuit based on an algorithm using ufilter bank and a harmonic predictor. The conirol circuit was realized using the digiiaI signor processor ADSP-21065L and FPGA circuiL In the proposed circuit transient performunee of APF is improved The active power fdter circuil has been built and teste6 and some illustrative, experimental results are uIso presented...

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• A fractionally delaying complex Hilbert transform filter

  Publication

  • E. Hermanowicz
  • H. Johansson
  • M. Rojewski

  - IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS - Year 2008

  Przedstawiono nowy, dyskretno-czasowy, ułamkowo-opóźniający (FD od ang. fractional delayor), zespolony filtr Hilberta (HTF od ang. Hilbert transform filter) nazwany FDHTF. Filtr ten jest oparty na parze obróconych filtrów o zmiennym opóźnieniu ułamkowym (VFD od ang. variable fractional delayor). Za pomocą filtru FDHTF realizuje się jednocześnie filtrację Hilberta i wprowadzanie ułamkowego opóźnienia do przetwarzanego sygnału. Dzięki...

• Effect of sisal fiber filler on thermal properties of bio-based polyurethane composites

  Publication

  • E. Głowińska
  • J. Datta
  • P. Parcheta-Szwindowska

  - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Year 2017

  This work is mainly focused on study of thermal and thermomechanical properties of obtained bio-based polyurethane (coded as bio-PU) composites via using different types of bio-components (bio-glycol, modified soybean oil and sisal fiber) in the procedure. The chemical structure, morphology and mechanical properties were also investigated and described in this manuscript in order to know more perfect characterization of produced...

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• A comparison of the target tracking in marine navigational radars by means of GRNN filter and numerical filter

  Publication

  • A. Stateczny
  • W. Kazimierski
  • A. Stateczny

  - Year 2008

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• Non-standard Analysis Filter Bank Design Applied to Hybrid Filter Bank Architecture

  Publication

  • Z. Swietach
  • B. Szlachetko

  - Year 2018

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• Rotational molding of polylactide (PLA) composites filled with copper slag as a waste filler from metallurgical industry

  Publication

  • M. Barczewski
  • A. Hejna
  • J. Aniśko
  • J. Andrzejewski
  • A. Piasecki
  • O. Mysiukiewicz
  • M. Bąk
  • B. Gapiński
  • Z. Ortega

  - POLYMER TESTING - Year 2022

  The research work carried out so far indicates the ever wider possibilities and demand for shaping composite products in the rotational molding technology. This trend was the main reason to use waste-based filler from the metallurgical process as a filler for manufacturing polylactide (PLA)-based remolded composites. Copper slag (CS) was introduced in the single-step processing method to PLA matrix at 5, 10, 20, and 35 wt%. The...

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• Silver filled single-wall carbon nanotubes—synthesis, structural and electronic properties

  Publication

  • E. Borowiak-Palen
  • M. Ruemmeli
  • T. Gemming
  • T. Pichler
  • R. Kalenczuk
  • S. Silva

  - NANOTECHNOLOGY - Year 2006

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