Academic literature on the topic 'Biphasic model'

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Journal articles on the topic "Biphasic model"

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Risk, Marcelo R., Vasilios Lirofonis, Ricardo L. Armentano, and Roy Freeman. "A biphasic model of limb venous compliance: a comparison with linear and exponential models." Journal of Applied Physiology 95, no. 3 (2003): 1207–15. http://dx.doi.org/10.1152/japplphysiol.00932.2002.

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Compliance is not linear within the physiological range of pressures, and linear modeling may not describe venous physiology adequately. Forearm and calf venous compliance were assessed in nine subjects. Venous compliance was modeled by using a biphasic model with high- and low-pressure linear phases separated by a breakpoint. This model was compared with a linear model and several exponential models. The biphasic, linear, and two-parameter exponential models best represented the data. The mean coefficient of determination for the biphasic model was greater than for the linear and exponential
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Bradley, James, Gi Soo Lee, and James Peyton. "Response to: Biphasic cuirass model." Pediatric Anesthesia 30, no. 7 (2020): 846–47. http://dx.doi.org/10.1111/pan.13947.

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Brewer, James, Ken Olson, Gary Steinkogler, and Sew-Wah Tay. "49. Waveform Design Based on Cardiac Electrophysiology Can Improve Transchest Defibrillation." Prehospital and Disaster Medicine 11, S2 (1996): S43. http://dx.doi.org/10.1017/s1049023x00045921.

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Introduction: Monophasic defibrillation waveforms are presently the standard of care in clinical use for trans-thoracic defibrillation. Recently, there has been renewed interest in biphasic waveforms. This interest reflects the superior performance demonstrated with biphasic waveforms in implantable defibrillators (ICD). External defibrillation research on two biphasic truncated exponential waveforms has been reported in which the waveforms were compared clinically to a damped sine waveform. A limitation of these transthoracic waveforms is the insufficiency of fundamental design principles use
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Mohammed Abdulzahra Hussein and Mohanad Naji Sahib. "The predictive power of biphasic dissolution approach using Class IV model drug." Al Mustansiriyah Journal of Pharmaceutical Sciences 23, no. 2 (2023): 221–30. http://dx.doi.org/10.32947/ajps.v23i2.1024.

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This study was aimed to evaluate biphasic dissolution system and its applicability to discriminate between different formulas. Two different tablet formulas of furosemide were prepared using dry compression (F1) and wet granulation (F2). The prepared formulas were evaluated for hardness,
 friability and disintegration. Thereafter, monophasic and biphasic dissolution systems were used to compare the dissolution profiles of the prepared formulas with a commercially available tablet. The results of the physical properties of the prepared tablets were within acceptable values. Moreover, there
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Wang, Jinglan, Lei Huang, Yun-Te Chang, Wanchun Tang, Max Harry Weil, and James E. Brewer. "BIPHASIC WAVEFORM DEFIBRILLALTION IN A PEDIATRIC MODEL." Critical Care Medicine 32, Supplement (2004): A54. http://dx.doi.org/10.1097/00003246-200412001-00200.

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Isaac, Naldine, Archana Mane, and Melissa Ehlers. "Letter to the Editor: Biphasic Cuirass Model." Pediatric Anesthesia 30, no. 7 (2020): 845–46. http://dx.doi.org/10.1111/pan.13923.

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Flores-Bungacho, Francisco, Jonathan Guerrero, Jacqueline Llanos, Diego Ortiz-Villalba, Alex Navas, and Paola Velasco. "Development and Application of a Virtual Reality Biphasic Separator as a Learning System for Industrial Process Control." Electronics 11, no. 4 (2022): 636. http://dx.doi.org/10.3390/electronics11040636.

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In this study, we propose a virtual reality biphasic separator methodology in an immersive industrial environment. It allows the training of students or engineers in process and automatic control. On the other hand, the operating performance of a biphasic separator requires advanced automatic control strategies because this industrial process has multivariable and nonlinear characteristics. In this context, the virtual biphasic separator allows the testing of several control techniques. The methodology, involving the immersive virtualization of the biphasic separator, includes three stages. Fi
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Jones, J. L., R. E. Jones, and G. Balasky. "Improved cardiac cell excitation with symmetrical biphasic defibrillator waveforms." American Journal of Physiology-Heart and Circulatory Physiology 253, no. 6 (1987): H1418—H1424. http://dx.doi.org/10.1152/ajpheart.1987.253.6.h1418.

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According to the most commonly accepted hypothesis, ventricular defibrillation is produced by exciting cells in a critical mass of the ventricle. For monophasic defibrillator waveforms, this hypothesis correctly predicts a direct correlation between defibrillation threshold in the transthoracic calf model and excitation threshold for extracellular field stimulation in the cultured cell model. To further test the hypothesis, we determined whether symmetrical biphasic waveforms, which reduce defibrillation threshold in the calf to approximately 65% of that of the corresponding monophasic wavefor
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Ciesielski, Danielle, Burcu Özay, Stephanie McCalla, and Tomas Gedeon. "A mathematical model for a biphasic DNA amplification reaction." Journal of The Royal Society Interface 16, no. 154 (2019): 20190143. http://dx.doi.org/10.1098/rsif.2019.0143.

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Isothermal DNA amplification reactions are a prevalent tool with many applications, ranging from analyte detection to DNA circuits. Exponential amplification reaction (EXPAR) is a popular isothermal DNA amplification method that exponentially amplifies short DNA oligonucleotides. A recent modification of this technique using an energetically stable looped template with palindromic binding regions demonstrated unexpected biphasic amplification and much higher DNA yield than EXPAR. This ultrasensitive DNA amplification reaction (UDAR) shows high-gain, switch-like DNA output from low concentratio
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Park, H. S., and Y. S. Yoon. "Application of linear biphasic theory to finite element analysis of head impulse loading." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 211, no. 2 (1997): 153–65. http://dx.doi.org/10.1243/0954406971521737.

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A finite element model of the human head by linear biphasic theory is developed to study the dynamic response of the human head to impact. Intracranial tissues are modelled as a binary mixture, i.e. the fluid and solid phases. To validate the biphasic finite element formulation, the result of the numerical analysis of a one-dimensional wave propagation problem is compared with that of analytic solution. The permeabilities of the subarachnoid space and brain which may reproduce the same coup and contre-coup CSF (cerebral spinal fluid) pressures from the monophasic model are searched in the spec
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Dissertations / Theses on the topic "Biphasic model"

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Brockhoff, Bethany. "Caffeine Elicits Time Dependent Biphasic Response of Functional Recovery in Carassius auratus Hemilabyrinthectomy Lesion Model." NSUWorks, 2015. http://nsuworks.nova.edu/occ_stuetd/35.

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Caffeine is one of the most popular psychostimulant drugs worldwide. Its effects are exerted through a variety of complex mechanisms, apparently primarily via interactions with adenosine A1 and A2A receptors. This drug has also been proven to elicit neuroprotective responses in a number of different brain disorders of the Central Nervous System (CNS), as well as provide enhancement of cognitive abilities. Moreover, a biphasic set of functional and structural neurological changes are often found in these receptors among diverse vertebrates. I investigated the effects of chronic caffeine exposur
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Vilaplana, Martínez Eduard. "A biphasic model for cortical structural changes in preclinical AD: a multimodal MRI, CSF and PET study." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/456994.

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La enfermedad de Alzheimer (EA) se caracteriza neuropatológicamente por la presencia de depósitos extracelulares de ß-amiloide (Aß) y ovillos neurofibrilares intracelulares (proteína tau fosforilada, p-tau) así como fenómenos inflamatorios. Estos procesos se asocian con atrofia cerebral, pérdida neuronal y alteraciones funcionales que acaban produciendo deterioro cognitivo y eventualmente un síndrome clínico de demencia. El depósito de amiloide comienzan décadas antes de que se pueda hacer un diagnóstico de demencia e incluso de la aparición de los primeros síntomas, y constituyen lo que se co
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Vangani, Saroj. "Development of an in vitro dissolution model to predict the in vivo behavior of poorly soluble compounds." Scholarly Commons, 2010. https://scholarlycommons.pacific.edu/uop_etds/2412.

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One of the challenges of biopharmaceutics research is correlating in vitro drug release information with the in vivo drug profiles often known as in vitro-in vivo correlations (IVIVC). These have huge cost savings in pharmaceutical industry. This dissertation describes the development of a novel in vitro dissolution model that has been designed to evaluate the in vitro release of poorly water-soluble model compounds so as to predict their in vivo behavior. The flow through apparatus (USP 4) has been coupled with the compendial dissolution apparatus (USP 2). A bi-phasic dissolution medium has b
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Moe, Brian J. "Estimating Growth and Mortality in Elasmobranchs: Are we doing it correctly?" NSUWorks, 2015. http://nsuworks.nova.edu/occ_stuetd/42.

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The instantaneous mortality rate (M) is an important parameter in elasmobranch management and conservation, but is difficult to estimate directly. Thus, indirect estimates based on relatively easily obtained life history parameters are commonly used. Many indirect methods incorporate one or more parameters from the von Bertalanffy growth model (VBGM), which is often criticized for its inability to describe changes in growth associated with maturity. The Lester growth model (LGM) is a biphasic alternative to the VBGM that incorporates trade-offs between reproduction, growth, and survival, and m
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Ham, Stephanie Lemmo. "Engineering Tumor Models Using Aqueous Biphasic 3D Culture Microtechnology." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron150470381711759.

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Whitney, G. Adam. "Characterization of the Frictional-Shear Damage Properties of Scaffold-Free Engineered Cartilage and Reduction of Damage Susceptibility by Upregulation of Collagen Content." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1417470427.

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Fritz, Thomas M. "A biphase shift keying (BPSK), direct sequence, spread spectrum modem for Petite Amateur Navy Satellite (PANSAT)." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23556.

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Approved for public release; distribution is unlimited<br>The development of a bi-phase shift keying (BPSK), direct sequence, spread spectrum modem is conducted for the purpose of creating a prototype design to be implemented in the Petite Amateur Navy Satellite (PANSAT). The design discussion includes the hardware used in the functional realization of a working design. The design itself encompasses selection of components and demonstrates (through circuit diagrams and waveforms produced) that the preliminary operational characteristics of a spread spectrum BPSK modulation scheme for PA
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Tosatto, Omar. "MODELLI ED ANALISI SPERIMENTALI DEI DEFLUSSI IDROLOGICI SUBSUPERFICIALI IN AMBIENTI A MAREA." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3427054.

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This work deals with the hydrological features of tidal environments, which are dynamic and delicate systems exposed to the effects of climate changes and often subjected to increasing human pressure (e.g. land reclamation, the construction of harbour structures and defenses against high tides, the erosion of wetland margins by waves generated by boats and ships). Wetlands are characterized by extremely high biodiversity and primary productivity, provide critical habitats for rare and endangered vegetation and animal species, and mediate the effects of floods and the action of the sea on the
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Litrico, Giuliana. "Strongly coupled models for the prediction of electrochemical reactors performances." Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11859.

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La modélisation mathématique des systèmes électrochimiques, et en général la modélisa- tion des systèmes fluidiques réactifs en présence de champs électriques, est un problème d’une complexité telle que des solutions analytiques n’existent que dans des cas très simpli- fiés et la solution numérique est, malgré toute la puissance de calcul moderne, encore très difficile. À ce jour, les avancées dans la modélisation au niveau des modèles d’écoulement sont majeures, mais la modélisation couplée de l’écoulement, avec le champ électrique en présence de solutions concentrées demeure encore un
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HOU, YAO MING, and 侯耀明. "Kinetic model of hydrolysis by lipase in biphasic system." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/09420815514924797530.

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Books on the topic "Biphasic model"

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Moore, J. Strother. A formal model of asynchronous communication and its use in mechanically verifying a biphase mark protocol. Langley Research Center, 1992.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., ed. A formal model of asynchronous communication and its use in mechanically verifying a biphase mark protocol. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1992.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., ed. A formal model of asynchronous communication and its use in mechanically verifying a biphase mark protocol. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1992.

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Fritz, Thomas M. A biphase shift keying (BPSK), direct sequence, spread spectrum modem for Petite Amateur Navy Satellite (PANSAT). Naval Postgraduate School, 1992.

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Lei, Yuan. Mechanical Ventilation Modes. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198784975.003.0008.

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‘Mechanical Ventilation Modes’ seeks to shed light on this hotly debated topic, one that is complicated by ventilator manufacturers’ non-standardized terminology. The chapter looks at conventional modes, adaptive modes, and biphasic modes, which it classifies based on the mechanical breath types in each mode. It includes a comparison chart of the terminology used for common modes on popular IPPV ventilators. Using their signature waveforms, the author describes the assist/control, SIMV, and pressure support ventilation or PSV modes. It defines the modes by their application of spontaneous brea
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Lei, Yuan. Ventilator Control Parameters. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198784975.003.0009.

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‘Ventilator Control Parameters’ looks at the individual ventilator settings, which are largely used to quantitatively define the properties of mechanical breaths. Following on from the previous discussion of essential variables, this chapter describes their implementation in the form of controls. This chapter begins by discussing the confusing and non-standardized terminology used for control parameters, providing a list of controls used on major ventilators. Common controls include rate, pressure and flow triggers, inspiratory time, I:E ratio, peak flow, flow cycle, tidal volume, pressure con
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Levine, Michael S., Elizabeth A. Wang, Jane Y. Chen, Carlos Cepeda, and Véronique M. André. Altered Neuronal Circuitry. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199929146.003.0010.

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In mouse models of Huntington’s disease (HD), synaptic alterations in the cerebral cortex and striatum are present before overt behavioral symptoms and cell death. Similarly, in HD patients, it is now widely accepted that early deficits can occur in the absence of neural atrophy or overt motor symptoms. In addition, hyperkinetic movements seen in early stages are followed by hypokinesis in the late stages, indicating that different processes may be affected. In mouse models, such behavioral alterations parallel complex biphasic changes in glutamate-mediated excitatory, γ‎-aminobutyric acid (GA
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Book chapters on the topic "Biphasic model"

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Hirsch, Sebastian. "A Biphasic Poroelasticity Model for Soft Tissue." In Quantification of Biophysical Parameters in Medical Imaging. Springer International Publishing, 2012. http://dx.doi.org/10.1007/978-3-031-61846-8_4.

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Hirsch, Sebastian. "A Biphasic Poroelasticity Model for Soft Tissue." In Quantification of Biophysical Parameters in Medical Imaging. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-65924-4_4.

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Argatov, Ivan, and Gennady Mishuris. "Linear Transversely Isotropic Biphasic Model for Articular Cartilage Layer." In Advanced Structured Materials. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-20083-5_5.

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Ricken, Tim, Uta Dahmen, Olaf Dirsch, and Daniel Q. Werner. "A Biphasic 3D-FEM Model for the Remodeling of Microcirculation in Liver Lobes." In Computer Models in Biomechanics. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5464-5_20.

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Banerjee, Shib Sundar, Arockiarajan Arunachalakasi, and Ramakrishnan Swaminathan. "Fractal Order Poro-elastic Model for Modelling Biphasic Tissue and Tissue-Like Materials." In Recent Advances in Computational Mechanics and Simulations. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8315-5_10.

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Xue, W. M., A. F. T. Mak, D. T. Huang, Y. C. Hon, and M. W. Lu. "On the Penalty Method of Stokes Equations and Biphasic Mixture Model of Soft Hydrated Tissues." In Contemporary Research in Engineering Science. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-80001-6_34.

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de Oliveira, Pedro Xavier, Jair Trapé Goulart, and Marcelo Zoccoler. "Hodgkin-Huxley Model Indicates an Inversion in the Strength-Duration Curves for Mono and Biphasic Stimuli." In XXVI Brazilian Congress on Biomedical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2119-1_9.

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Spilker, R. L., J.-K. Suh, M. E. Vermilyea, and T. A. Maxian. "Alternate Hybrid, Mixed, and Penalty Finite Element Formulations for the Biphasic Model of Soft Hydrated Tissues." In Biomechanics of Diarthrodial Joints. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-3448-7_15.

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Hopkins, G., S. Skatulla, L. Moj, T. Ricken, N. Ntusi, and E. Meintjes. "An initial biphasic model of the human heart aimed at computational investigation of rheumatic heart disease." In Insights and Innovations in Structural Engineering, Mechanics and Computation. CRC Press, 2016. http://dx.doi.org/10.1201/9781315641645-105.

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Malard, Oliver, Jean Michel Bouler, Jerome Guicheux, Olivier Gauthier, E. Lerouxel, and Guy Daculsi. "Bone Marrow Autograft Associated to Macroporous Biphasic Calcium Phosphate for Bone Substitution in an Animal Model of Sequels of Radiotherapy." In Bioceramics 17. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-961-x.285.

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Conference papers on the topic "Biphasic model"

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Travascio, Francesco, Roberto Serpieri, and Shihab Asfour. "Articular Cartilage Biomechanics Modeled via an Intrinsically Compressible Biphasic Model: Implications and Deviations From an Incompressible Biphasic Approach." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14082.

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Biphasic continuum models have been extensively deployed for modeling macroscopic articular cartilage biomechanics [1,2]. This consolidated theoretical approach schematizes tissue as a mixture of an elastic solid matrix embedded in a fluid phase. In physiological conditions, intrinsic compressibility of each phase is very limited when compared to the whole tissue macroscopic counterpart. Based on such experimental evidence, intrinsic phase compressibility is generally reasonably neglected [3]. Hence, traditionally, cartilage biomechanics models have been developed on the basis of incompressibl
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Hosseini Farid, Mohammad, Mohammadreza Ramzanpour, Mariusz Ziejewski, and Ghodrat Karami. "A Biphasic Viscoelastic Constitutive Model for Brain Tissue." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10743.

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Abstract In this study, a rate-dependent biphasic model will be introduced to account for phenomenological behavior of brain tissue. For this purpose, a poro-hyper viscoelastic constitutive model is developed. The tissue is treated as a fluid-saturated porous medium, modeled as biphasic matter constituting of a solid matrix and interstitial liquids fill the porous spaces. The interactions between the two phases are assumed to be governed by Darcy’s law. This suggested model is calibrated with the experimental results of the bovine brain tissue, tested under high deformation rates (10, 100, 100
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Smith, Joshua H., and Jose Jaime García. "A Nonlinear Biphasic Hyperelastic Model for Acute Hydrocephalus." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192865.

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The cerebrospinal fluid present in the central nervous system plays an important role in the physiological activities and protection of the brain. Disruptions of CSF flow lead to different forms of a disease known as hydrocephalus, characterized by a significant increment of the ventricular space. In acute hydrocephalus the Sylvius aqueduct is blocked and ventricular pressure is greatly increased.
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Guo, Hongqiang, Suzanne A. Maher, and Robert L. Spilker. "A 3D Biphasic Finite Element Model of the Human Knee Joint for the Study of Tibiofemoral Contact and Fluid Pressurization." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14178.

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Biphasic theory which considers soft tissue, such as articular cartilage and meniscus, as a combination of a solid and a fluid phase has been widely used to model their biomechanical behavior [1]. Though fluid flow plays an important role in the load-carrying ability of soft tissues, most finite element models of the knee joint consider cartilage and the meniscus as solid. This simplification is due to the fact that biphasic contact is complicated to model. Beside the continuity conditions for displacement and traction that a single-phase contact problem consists of, there are two additional c
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Kebdani, M., G. Dauphin-Tanguy, A. Dazin, and P. Dupont. "Bond graph model of a mechanically Pumped Biphasic Loop. (MPBL)." In 2015 23th Mediterranean Conference on Control and Automation (MED). IEEE, 2015. http://dx.doi.org/10.1109/med.2015.7158789.

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Haghpanahi, Mohammad, and Sareh Hoseini Marashi. "Biphasic (poroviscoelastic) investigation of lumbar disc by axisymmetric finite element model." In 2011 18th Iranian Conference of Biomedical Engineering (ICBME). IEEE, 2011. http://dx.doi.org/10.1109/icbme.2011.6168548.

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Chang, Yi Jui, Daniel Canuto, Kwitae Chong, et al. "Video: A biphasic computational model for simulations of blood-perfused tissue." In 71th Annual Meeting of the APS Division of Fluid Dynamics. American Physical Society, 2018. http://dx.doi.org/10.1103/aps.dfd.2018.gfm.v0029.

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Alvarez, Pablo, Saramati Narasimhan, Simon Rouze, et al. "Biphasic Model Of Lung Deformations For Video-Assisted Thoracoscopic Surgery (VATS)." In 2019 IEEE 16th International Symposium on Biomedical Imaging (ISBI). IEEE, 2019. http://dx.doi.org/10.1109/isbi.2019.8759219.

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Campos, Alexandre, Maria Eduarda Franke, Vitor Nunes, Rodrigo Trentini, and Carlos Henrique Dos Santos. "Internal Model Control Applied to a Biphasic Separator Under Slugging Disturbance." In ANAIS DO 11º CONGRESSO BRASILEIRO DE PETRóLEO E GáS. Galoa, 2022. http://dx.doi.org/10.17648/pdpetro-2022-159374.

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Bai, S., and J. K. Suh. "Finite Element Formulation of a Biphasic Poroviscoelastic Model for Articular Cartilage." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-1133.

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Abstract Articular cartilage, a composite mixture of extracellular matrix and interstitial fluid, manifests viscoelastic characteristics, partly due to the frictional interaction between the porous matrix substrate and the interstitial fluid and partly due to the intrinsic viscoelastic behavior of proteoglycan gel of cartilage. The biphasic poroviscoelastic model (BPVE) has been used to predict the 1-D deformational behavior of articular cartilage [1,2]. In this study, we developed a finite element formulation of the poroviscoelastic model to investigate the mechanical response of articular ca
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