Analytical Modelling of Natural Frequency of Tympanic Membrane as the Low-Frequency Limit of Hearing.

abstract：:Auscultation is an important diagnostic indicator for cardiovascular analysis. Heart sound classification and analysis play an important role in the auscultative diagnosis. This study uses a combination of Mel-frequency cepstral coefficient (MFCC) and hidden Markov model (HMM) to efficiently extract the features for p...

journal_title：Annals of biomedical engineering

authors： Wang P,Lim CS,Chauhan S,Foo JY,Anantharaman V

更新日期：2007-03-01 00:00:00

abstract：:Traditionally, measurement of pulmonary O2 uptake uses mass balance of N2 to correct for differences between inspired and expired volume (V) due to temperature (T) and relative humidity (RH). Often during anesthesia, N2 balance cannot be invoked due to high inspired O2 fraction (FIO2) or nonsteady state conditions. Th...

journal_title：Annals of biomedical engineering

authors： Breen PH

更新日期：2000-09-01 00:00:00

abstract：:The applicability of a computer model, which relates the transmural mechanical distribution in the left ventricle (LV) to its global function at different loading conditions, was evaluated in patients with normal to near normal LV function undergoing cardiac catheterization. Left ventriculography and measurements of a...

journal_title：Annals of biomedical engineering

authors： Abboud L,Beyar R,Battler A,Rat M,Cohen A,Sideman S

更新日期：1990-01-01 00:00:00

abstract：:A novel in vitro culture system of organotypic human skin explants interfacing with external fixator pins is presented. The system was used to observe changes in skin morphology on the skin at the pin interface. To evaluate the performance of this novel system, histological analysis of human skin explants cultured for...

journal_title：Annals of biomedical engineering

authors： Peramo A,Marcelo CL,Goldstein SA,Martin DC

更新日期：2009-02-01 00:00:00

abstract：:In order to successfully use a model for parameter identification, it must be carefully analyzed. Current analysis methods, however, are ad hoc and provide only partial information. We extended these methods through the application of stacked dimensions, a scientific visualization method. The end result of our extensi...

journal_title：Annals of biomedical engineering

authors： Bosan S,Harris TR

更新日期：1996-01-01 00:00:00

abstract：:Recent studies suggest that vortex ring formation during left ventricular (LV) rapid filling is an optimized mechanism for blood transport, and that the volume of the vortex ring is an important measure. However, due to lack of quantitative methods, the volume of the vortex ring has not previously been studied. Lagran...

journal_title：Annals of biomedical engineering

authors： Töger J,Kanski M,Carlsson M,Kovács SJ,Söderlind G,Arheden H,Heiberg E

更新日期：2012-12-01 00:00:00

abstract：:This study was undertaken to investigate the possible origin of some cutaneously recorded higher frequency electrogastrographic signals. Computer modeling of gastric electrical uncoupling was performed using previously described conoidal dipole model. Cutaneous electrogastrograms were simulated after uncoupling was in...

journal_title：Annals of biomedical engineering

authors： Mintchev MP,Bowes KL

更新日期：1997-11-01 00:00:00

abstract：:Congenital heart disease is the leading cause of infant death in the United States with over 36,000 newborns affected each year. Despite this growing problem there are few mechanical circulatory support devices designed specifically for pediatric and neonate patients. Previous research has been done investigating pedi...

journal_title：Annals of biomedical engineering

authors： Good BC,Deutsch S,Manning KB

更新日期：2016-04-01 00:00:00

abstract：:Fractal time series analysis methods are commonly used for analyzing center of pressure (COP) signals with the goal of revealing the underlying neuromuscular processes for upright stance control. The use of fractal methods is often coupled with the assumption that the COP is an instance of fractional Gaussian noise (f...

journal_title：Annals of biomedical engineering

authors： Kuznetsov N,Bonnette S,Gao J,Riley MA

更新日期：2013-08-01 00:00:00

abstract：:Previous research in cellular adhesion has focused primarily on studying isolated cells under conditions where cells do not interact with each other. However, in vivo cells form sheets where both cell-substratum and cell-cell interactions contribute to the overall adhesive behavior. Our understanding of how cell-cell ...

journal_title：Annals of biomedical engineering

authors： Peel MM,DiMilla PA

更新日期：1999-03-01 00:00:00

abstract：:The neutrophil has developed into one of the most efficient vertebrate motile cells. It migrates through tissues, where it encounters multiple chemoattractant signals with complex spatial and temporal characteristics. The directional movement of the neutrophil is signaled by the binding of chemoattractants and chemoki...

journal_title：Annals of biomedical engineering

authors： Zhelev DV,Alteraifi A

更新日期：2002-03-01 00:00:00

abstract：:The human thorax is commonly injured in motor vehicle crashes, and despite advancements in occupant safety rib fractures are highly prevalent. The objective of this study was to quantify the ability of gross and cross-sectional geometry, separately and in combination, to explain variation of human rib structural prope...

journal_title：Annals of biomedical engineering

authors： Murach MM,Kang YS,Goldman SD,Schafman MA,Schlecht SH,Moorhouse K,Bolte JH 4th,Agnew AM

更新日期：2017-09-01 00:00:00

abstract：:It would often be desirable to obtain the respiratory rate during everyday conditions without obtaining an additional respiratory trace. This study investigates the agreement between respiratory rate assessed from the electrocardiogram (ECG) and the reference respiratory rate derived from a nasal/oral airflow (AF). Na...

journal_title：Annals of biomedical engineering

authors： Cysarz D,Zerm R,Bettermann H,Frühwirth M,Moser M,Kröz M

更新日期：2008-12-01 00:00:00

abstract：:Arterial tissue is commonly assumed to be incompressible. While this assumption is convenient for both experimentalists and theorists, the compressibility of arterial tissue has not been rigorously investigated. In the current study we present an experimental-computational methodology to determine the compressibility ...

journal_title：Annals of biomedical engineering

authors： Nolan DR,McGarry JP

更新日期：2016-04-01 00:00:00

abstract：:The local dilation of the infrarenal abdominal aorta, termed an abdominal aortic aneurysm (AAA), is often times asymptomatic and may eventually result in rupture-an event associated with a significant mortality rate. The estimation of in-vivo stresses within AAAs has been proposed as a useful tool to predict the likel...

journal_title：Annals of biomedical engineering

authors： Vande Geest JP,Schmidt DE,Sacks MS,Vorp DA

更新日期：2008-06-01 00:00:00

abstract：:Using a three-dimensional propagation model of the human ventricular myocardium, we studied the role of fibrous structure in generating epicardial potential maps. This model represents the myocardium as an anisotropic bidomain with an equal anisotropy ratio, and it incorporates a realistic representation of anatomical...

journal_title：Annals of biomedical engineering

authors： Hren R,Nenonen J,Horácek BM

更新日期：1998-11-01 00:00:00

abstract：:A solid tumor is composed of a population of cells that is expanding as a result of cell division. With dense cell packing, the solid matrix of the interstitial tissue is subject to residual stress. In addition, elevated interstitial fluid pressure (IFP) has been reported by researchers for a number of solid tumors. T...

journal_title：Annals of biomedical engineering

authors： Sarntinoranont M,Rooney F,Ferrari M

更新日期：2003-03-01 00:00:00

abstract：:A nonintrusive method for the visualization of pulsatile flow velocity profiles is described. The method is based on the use of a photochromic dye that is added to the fluid being studied and a nitrogen laser which excites the dye producing a marker "line" whose movement can be photographed. A microcomputer is used as...

journal_title：Annals of biomedical engineering

authors： Poots K,Cobbold RS,Johnston KW,Appugliese R,Kassam M,Zuech PE,Hummel RL

更新日期：1986-01-01 00:00:00

abstract：:When cells and the matrix of a tissue remodel, the mechanical properties of the tissue do change. The mechanical properties are expressed by constitutive equations. In this article the remodeling of the constitutive equation of the pulmonary artery is studied. The remodeling was induced in a rat breathing a gas whose ...

journal_title：Annals of biomedical engineering

authors： Huang W,Delgado-West D,Wu JT,Fung YC

更新日期：2001-01-01 00:00:00

abstract：:Overexpressed receptors, characteristic of many cancers, have been targeted by various researchers to achieve a more specific treatment for cancer. A common approach is to use the natural ligand for the overexpressed receptor as a cancer-targeting agent which can deliver a chemically or genetically conjugated toxic mo...

journal_title：Annals of biomedical engineering

authors： Yoon DJ,Liu CT,Quinlan DS,Nafisi PM,Kamei DT

更新日期：2011-04-01 00:00:00

abstract：:The purpose of this study is to measure the transmural pressure-cross sectional area relation of micro tubes (240 microns diameter) and to compare the measured perfusion pressure-flow relation with the pressure-flow relation calculated from the experimental pressure-cross sectional area relation. The microtubes are ma...

journal_title：Annals of biomedical engineering

authors： Sipkema P,Westerhof N

更新日期：1989-01-01 00:00:00

abstract：:Rupture of abdominal aortic aneurysm (AAA) is associated with high mortality rates. Risk of rupture is multi-factorial involving AAA geometric configuration, vessel tortuosity, and the presence of intraluminal pathology. Fluid structure interaction (FSI) simulations were conducted in patient based computed tomography ...

journal_title：Annals of biomedical engineering

authors： Xenos M,Labropoulos N,Rambhia S,Alemu Y,Einav S,Tassiopoulos A,Sakalihasan N,Bluestein D

更新日期：2015-01-01 00:00:00

abstract：:The development of prevention strategies is critical to address the rising prevalence of sport-related concussions. Visual and sensory performance may influence an individual's ability to interpret environmental cues, anticipate opponents' actions, and create appropriate motor responses limiting the severity of an imp...

journal_title：Annals of biomedical engineering

authors： Harpham JA,Mihalik JP,Littleton AC,Frank BS,Guskiewicz KM

更新日期：2014-01-01 00:00:00

abstract：:The influence of scaffold compliance on blood vessel tissue engineering remains unclear and compliance mismatch issues are important to an in vivo tissue-engineering approach. We have designed and constructed a modular bioreactor system that is capable of imparting pulsatile fluid flow while simultaneously measuring v...

journal_title：Annals of biomedical engineering

authors： Webb AR,Macrie BD,Ray AS,Russo JE,Siegel AM,Glucksberg MR,Ameer GA

更新日期：2007-08-01 00:00:00

abstract：:Tissue engineering strategies have utilized a wide spectrum of synthetic and naturally-derived scaffold materials. Synthetic scaffolds are better defined and offer the ability to precisely and reproducibly control their properties, while naturally-derived scaffolds typically have inherent biological and structural pro...

journal_title：Annals of biomedical engineering

authors： Allen AB,Priddy LB,Li MT,Guldberg RE

更新日期：2015-03-01 00:00:00

abstract：:In physiological conditions, joint function involves continuously moving contact areas over the tissue surface. Such moving contacts play an important role for the durability of the tissue. It is known that in pathological joints these motion paths and contact mechanics change. Nevertheless, limited information exists...

journal_title：Annals of biomedical engineering

authors： Schätti OR,Gallo LM,Torzilli PA

更新日期：2016-08-01 00:00:00

abstract：:The field of percutaneous coronary intervention has witnessed many progressions over the last few decades, more recently with the advancement of fully degradable bioabsorbable stents. Bioabsorbable materials, such as metallic alloys and aliphatic polyesters, have the potential to yield stents which provide temporary s...

journal_title：Annals of biomedical engineering

authors： Boland EL,Shine R,Kelly N,Sweeney CA,McHugh PE

更新日期：2016-02-01 00:00:00

abstract：:We describe the development of experimental platforms to quantify the regeneration of injured central nervous system (CNS) neurons by combining engineering technologies and primary neuronal cultures. Although the regeneration of CNS neurons is an important area of research, there are no currently available methods to ...

journal_title：Annals of biomedical engineering

authors： Kim HJ,Park JW,Byun JH,Vahidi B,Rhee SW,Jeon NL

更新日期：2012-06-01 00:00:00

abstract：:In order to increase the probability of having a successful cataract post-surgery, the customisation of the haptic design of the intraocular lens (IOL) according to the characteristics of the patient is recommended. In this study, we present two prediction models based on deep neural networks (DNNs). One is capable of...

journal_title：Annals of biomedical engineering

authors： Cabeza-Gil I,Ríos-Ruiz I,Calvo B

更新日期：2020-12-01 00:00:00

abstract：:This paper presents the bispectral analysis of the ontogeny of the hippocampal EEG recorded from the dentate gyrus and CA1, the primary sites that generate theta (theta) rhythm. The hippocampal EEG was collected during the vigilance state of rapid eye movement (REM) sleep of freely moving rats at 15, 30 and 90 days of...

journal_title：Annals of biomedical engineering

authors： Ning T,Bronzino JD

更新日期：1998-07-01 00:00:00