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Keyword: pneumodynamics
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Journal Articles
Article Type: Research Papers
J Biomech Eng. November 2011, 133(11): 111005.
Published Online: November 29, 2011
... the acinar duct would result in irreversible acinar flow fields, which might be important mechanistic contributors to aerosol mixing and deposition deep in the lung. 11 09 2011 19 10 2011 29 11 2011 29 11 2011 aerosols elasticity lung muscle pneumodynamics stress...
Journal Articles
Article Type: Research Papers
J Biomech Eng. July 2011, 133(7): 071003.
Published Online: July 13, 2011
... physiological models pneumodynamics stents stress effects surgery Tracheal stenosis, which is the most common tracheal injury [( 21 )], is usually caused by a tracheotomy intubation with unsuitable pressure. Prolonged ischemia and infection causes necrosis of the tracheal wall and deterioration of...
Journal Articles
Article Type: Research Papers
J Biomech Eng. June 2011, 133(6): 061004.
Published Online: June 21, 2011
... measurement diseases flow visualisation lung physiological models pneumodynamics velocity measurement emphysema pulmonary expanding compliant in vivo three dimensional PIV flow fields acinus Emphysema is a type of chronic obstructive pulmonary disease defined by destruction of the...
Journal Articles
Article Type: Research Papers
J Biomech Eng. January 2011, 133(1): 011003.
Published Online: December 22, 2010
... while potentially reducing the computational cost of these simulations by several orders of magnitude. 13 07 2010 14 10 2010 02 11 2010 22 12 2010 22 12 2010 computational fluid dynamics flow simulation lung medical computing pneumodynamics Predicting and...
Journal Articles
Article Type: Research Papers
J Biomech Eng. November 2010, 132(11): 111003.
Published Online: October 15, 2010
... 09 2009 02 09 2010 21 09 2010 15 10 2010 15 10 2010 biocommunications finite element analysis pneumodynamics speech immersed boundary method finite-element method flow-structure interaction phonation flow-induced vibration Flow-structure interaction...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2010, 132(10): 101001.
Published Online: September 27, 2010
... models pipe flow pneumodynamics rotational flow The human lung contains several hundred million small gas-exchange units—called alveoli. Respiratory gases, such as O 2 or CO 2 , are transported from the alveolar opening to the gas-exchange surface predominantly by...
Journal Articles
Article Type: Research Papers
J Biomech Eng. August 2010, 132(8): 081002.
Published Online: June 15, 2010
... unknown flow distribution into the downstream region. 08 04 2009 11 03 2010 28 04 2010 15 06 2010 15 06 2010 digital simulation lung medical computing pneumodynamics Mechanical ventilation is an indispensable tool for the survival of critical care patients...
Journal Articles
Article Type: Research Papers
J Biomech Eng. May 2010, 132(5): 051009.
Published Online: March 30, 2010
... aerosols convection flow visualisation lung mixing pipe flow pneumodynamics turbulent diffusion biofluids pulmonary flows alveolus particle image velocimetry particle dispersion particle mixing particle deposition The alveolus is the smallest but most important unit of the human...
Journal Articles
Article Type: Research Papers
J Biomech Eng. May 2010, 132(5): 051010.
Published Online: March 30, 2010
... the orientation of the gravity vector. 15 06 2009 13 01 2010 27 01 2010 30 03 2010 30 03 2010 biotransport disperse systems flow visualisation lung particle size pneumodynamics biofluids pulmonary flows alveolus particle image velocimetry particle...
Journal Articles
Article Type: Research Papers
J Biomech Eng. March 2010, 132(3): 031012.
Published Online: February 17, 2010
... 17 02 2010 17 02 2010 blood vessels cardiovascular system diseases flow simulation haemodynamics lung paediatrics pneumodynamics surgery Since the introduction of the Fontan procedure ( 1 ), as a palliative surgical repair for patients with various forms of complex...
Journal Articles
Article Type: Research Papers
J Biomech Eng. March 2010, 132(3): 031005.
Published Online: February 8, 2010
... partitioning at varying Womersley and Reynolds numbers. 05 02 2009 28 09 2009 22 12 2009 08 02 2010 08 02 2010 bifurcation convection flow visualisation fluid oscillations pneumodynamics probability two-phase flow respiratory flow high frequency oscillatory...
Journal Articles
Article Type: Research Papers
J Biomech Eng. February 2010, 132(2): 021008.
Published Online: January 29, 2010
... pneumodynamics sedimentation alveolar sac emphysema particle image velocimetry compliant model deposition In the United States approximately 35 × 10 6 Americans have some form of chronic lung disease, which leads to about 400,000 deaths per year ( 1 ). To predict particulate...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. January 2010, 132(1): 014501.
Published Online: December 8, 2009
... measurement finite element analysis lung muscle pneumodynamics road safety internal abdominal pressure respiratory mechanics diaphragm numerical model In the field of respiratory mechanics analysis, several approaches can be used. The first concerns experimental volunteer studies, but...
Journal Articles
Article Type: Research Papers
J Biomech Eng. September 2009, 131(9): 091002.
Published Online: August 4, 2009
... 2008 24 03 2009 04 08 2009 biological organs biomedical MRI computational fluid dynamics image reconstruction image resolution medical image processing numerical analysis pneumodynamics nasal airflow canine olfaction 3D reconstruction CFD verification Due to the...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2009, 131(4): 041003.
Published Online: January 30, 2009
... physiological models pneumodynamics skin thermoregulation computational models environmental heating human models Numerous analytical and computational tools have been developed over the past four decades for the purpose of predicting tissue temperature changes in humans subjected to various...
Journal Articles
Article Type: Research Papers
J Biomech Eng. March 2009, 131(3): 031010.
Published Online: January 7, 2009
... health hazards kinematics lung particle size pipe flow pneumodynamics sedimentation trees (mathematics) Under normal circumstances, only small aerosol particles (typically ≤ 5   μ m ) penetrate into the distal region of the lung (i.e., pulmonary acinus) without being deposited...
Journal Articles
Article Type: Research Papers
J Biomech Eng. February 2009, 131(2): 021007.
Published Online: December 10, 2008
... computational fluid dynamics flow simulation lung nanoparticles physiological models pneumodynamics turbulence tracheobronchial tree segmental decomposition computational fluid-particle dynamics simulations nanoparticle deposition micron particle deposition 2 In vivo and in vitro...
Journal Articles
Article Type: Research Papers
J Biomech Eng. January 2009, 131(1): 011010.
Published Online: November 24, 2008
... could be a first step toward more sophisticated cough models as well as in developing ideas for new bench-top experiments. 18 10 2007 28 08 2008 24 11 2008 lung muscle physiological models pneumodynamics A cough is an explosive exhalation. It constitutes one of the most...
Journal Articles
Article Type: Research Papers
J Biomech Eng. January 2009, 131(1): 011006.
Published Online: November 19, 2008
... Hamiltonian dynamics theory are then employed to confirm the existence of chaos in the flow in a rigid alveolated duct. 15 06 2007 30 09 2007 19 11 2008 chaos lung mixing pneumodynamics Poincare mapping pulsatile flow The flow in the acinar region of the lung has little...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2008, 130(5): 051004.
Published Online: July 11, 2008
... fixation devices. 11 07 2007 09 04 2008 11 07 2008 biomechanics biomedical equipment biomedical measurement bone cardiology pneumodynamics surgery sternum chest cardiac surgery Following open-heart surgery, the bisected sternum must be reapproximated and held in...