Search results for: THORACIC SPINE

• Mechanical response of human thoracic spine ligaments under quasi-static loading: An experimental study

  Publication

  • R. Wolny
  • T. Wiczenbach
  • A. J. Andrzejewska
  • J. H. Spodnik

  - Journal of the Mechanical Behavior of Biomedical Materials - Year 2024

  Purpose This study aimed to investigate the geometrical and mechanical properties of human thoracic spine ligaments subjected to uniaxial quasi-static tensile test. Methods Four human thoracic spines, obtained through a body donation program, were utilized for the study. The anterior longitudinal ligament (ALL), posterior longitudinal ligament (PLL), capsular ligament (CL), ligamenta flava (LF), and the interspinous ligament and...

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• Proceedings of SPIE

  Journals

  ISSN: 0277-786X

• Quantum-state transfer in spin chains via isolated resonance of terminal spins

  Publication

  • K. Korzekwa
  • P. Machnikowski
  • P. Horodecki

  - PHYSICAL REVIEW A - Year 2014

  We propose a quantum-state transfer protocol in a spin chain that requires only the control of the spins at the ends of the quantum wire. The protocol is to a large extent insensitive to inhomogeneity caused by local magnetic fields and perturbation of exchange couplings. Moreover, apart from the free evolution regime, it allows one to induce an adiabatic spin transfer, which provides the possibility of performing the transfer...

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• Analysis of thoracic regional impedance changes using PCA approach

  Publication

  • M. Lewandowska
  • J. Wtorek
  • A. Bujnowski
  • L. Mierzejewski

  - Year 2010

  A multichannel impedance and one lead electrocardiographic recording system has been developed. The impedance measurement unit is built using a four-electrode technique. It consists of a sinusoidal, 40 kHz, current source and five measurement channels. Circumferential current electrodes have been located at a neck and an abdomen. Voltagemeasurement disk electrodes formed five two-electrode measurement ports. The impedance change...

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• Applicability of an effective conductivity approach in modeling thoracic impedance changes

  Publication

  • M. Madej
  • B. Truyen
  • C. Boca
  • J. Wtorek

  - Journal of Physics : Conference Series - Year 2013

  This paper describes numerical simulations of the influence of conductivity changes inside a volume conductor on impedance changes measured on its surface. A simple model based on the finite element method has been developed to estimate an applicability of the effective conductivity theory in human chest modeling. The model consisted of a cylinder with two concentric spheres inside. Simulations were performed for two cases: first...

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• Spine Deformity

  Journals

  ISSN: 2212-134X , eISSN: 2212-1358

• JOR Spine

  Journals

  ISSN: 2572-1143

• Spine Journal

  Journals

  ISSN: 1529-9430 , eISSN: 1878-1632

• A telemedical and an outpatient thoracic impedance measurements - a validation algorithm of the electrodes placement

  Publication

  • T. Kocejko
  • A. Poliński
  • J. Wtorek
  • M. Romanowska-Kocejko
  • M. Gruchała

  - Year 2015

  This paper presents the algorithm for validation of electrodes locations for the thoracic impedance measurements. In particular the presented algorithm was designed to perform the telemetric sleep apnea monitoring. One of the problems, during the clinical tests of a developed device, was to preserve the repeatability of measurements. It strongly depended on the appropriate electrodes placement on the examined person’s thorax. It...

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• Thoracic Cancer

  Journals

  ISSN: 1759-7706 , eISSN: 1759-7714