Search results for: LOWER AND UPPER SOLUTIONS

• Boundary value problems with advanced arguments involving upper and lower solutions in reverse order

  Publication

  • T. Jankowski
  • R. Jankowski

  - DYNAMIC SYSTEMS AND APPLICATIONS - Year 2010

  Praca dotyczy problemów brzegowych dla równań różniczkowo-całkowych pierwszego rzędu z argumentami wyprzedzonymi. Podano wystarczające warunki, dla których problemy dotyczące takich równań mają rozwiązania minimalne i maksymalne w odpowiadającym obszarze ograniczonym przez rozwiązania górne i dolne. W celu uzyskania wyników zastosowano nową metodę opartą na twierdzeniu Heikkila-Lakshmikantham'a. Wyniki zilustrowano na przykładzie.

• Selected Metals in Urban Road Dust: Upper and Lower Silesia Case Study

  Publication

  • J. Rybak
  • M. Wróbel
  • J. Stefan
  • W. Rogula-Kozłowska

  - Atmosphere - Year 2020

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• Acute Hormonal and Inflammatory Responses following Lower and Upper Body Resistance Exercises Performed to Volitional Failure

  Publication

  • J. Chycki
  • M. Krzysztofik
  • E. Sadowska-Krępa
  • D. Baron-Kaczmarek
  • A. Zając
  • S. Poprzęcki
  • M. Petr

  - International Journal of Molecular Sciences - Year 2024

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• Effect of Simultaneous Lower- and Upper-Body Ischemic Preconditioning on Lactate, Heart Rate, and Rowing Performance in Healthy Males and Females

  Publication

  • R. Urbański
  • P. Aschenbrenner
  • P. Żmijewski
  • P. Ewertowska
  • K. Świtała
  • M. Krzysztofik

  - Applied Sciences-Basel - Year 2024

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• Boundary problems for fractional differential equations

  Publication

  • T. Jankowski

  - APPLIED MATHEMATICS LETTERS - Year 2014

  In this paper, the existence of solutions of fractional differential equations with nonlinear boundary conditions is investigated. The monotone iterative method combined with lower and upper solutions is applied. Fractional differential inequalities are also discussed. Two examples are added to illustrate the results.

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• Wiktoria Wojnicz dr hab. inż.

  People

  Zakład Mechaniki Stosowanej i Biomechaniki, Faculty of Mechanical Engineering and Ship Technology, Institute of Mechanics and Machine Design

  DSc in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2019 PhD in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2009 (with distinction)   List of papers (2009 - ) Wojnicz W., Wittbrodt E., Analysis of muscles' behaviour. Part I. The computational model of muscle. Acta of Bioengineering and Biomechanics, Vol. 11, No.4, 2009, p. 15-21 Wojnicz W., Wittbrodt E., Analysis of...

• First-order differential equations with nonlocal boundary conditions

  Publication

  • T. Jankowski

  - DYNAMIC SYSTEMS AND APPLICATIONS - Year 2015

  We study a first-order boundary value problem subject to some boundary conditions given by Riemann-Stieltjes integrals. Using a monotone iterative method, we formulate sufficient conditions which guarantee the existence of extremal or quasi-solutions in the corresponding region bounded by upper and lower solutions of our problems. The case when a unique solution exists is also investigated. Some examples are given to illustrate...

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• Monotone iterative method to second order differential equations with deviating arguments involving Stieltjes integral boundary conditions

  Publication

  • T. Jankowski
  • R. Jankowski

  - DYNAMIC SYSTEMS AND APPLICATIONS - Year 2012

  We use a monotone iterative method for second order differential equations with deviating arguments and boundary conditions involving Stieltjes integrals. We establish sufficient conditions which guarantee that such problems have extremal solutions in the corresponding region bounded by lower and upper solutions. We also discuss the situation when problems have coupled quasi-solutions. We illustrate our results by three examples.

• Host and pathogen factors in Klebsiella pneumoniae upper urinary tract infections in renal transplant patients

  Publication

  • J. Gołębiewska
  • B. Krawczyk
  • M. Wysocka
  • A. Ewiak
  • J. Komarnicka
  • M. Bronk
  • B. Rutkowski
  • A. Dębska-ślizień

  - JOURNAL OF MEDICAL MICROBIOLOGY - Year 2019

  Purpose . To analyse the role of virulence factors (VFs) and host in Klebsiella pneumoniae upper urinary tract infections (UTIs) in renal transplant (RTx) recipients. Methodology. Clinical and demographic data were registered prospectively. Phylogenetic background of K. pneumoniae isolates was analysed by PCR melting profiles (MP) and the following VFs genes: fimH-1, uge, kpn, ycfM, mrkD, rmpA, magA, hlyA, cnf-1, irp-1, irp-2,...

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• Application of Doubly Connected Dominating Sets to Safe Rectangular Smart Grids

  Publication

  • J. Cyman
  • J. Raczek

  - ENERGIES - Year 2022

  Smart grids, together with the Internet of Things, are considered to be the future of the electric energy world. This is possible through a two-way communication between nodes of the grids and computer processing. It is necessary that the communication is easy and safe, and the distance between a point of demand and supply is short, to reduce the electricity loss. All these requirements should be met at the lowest possible cost....

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