Abstract：
:The viscosity: shear rate relationship of whole blood is shown to be described to a good approximation by a bi-linear plot on log: log axes. This has allowed an analytical solution to be obtained which gives a full description of the flow properties of blood in rigid tubes of a size where the Fahraeus-Lindqvist effect is minimal. As a result the profound effects that changing haematocrit has on blood flow in such tubes can be quantitated. The analysis also shows that in similar circumstances altering fibrinogen concentration is of rheological significance only at flow rates below the normal physiological range.
journal_name
Biorheologyjournal_title
Biorheologyauthors
Rampling MW,Challoner Tdoi
10.3233/bir-1983-20204subject
Has Abstractpub_date
1983-01-01 00:00:00pages
141-52issue
2eissn
0006-355Xissn
1878-5034journal_volume
20pub_type
杂志文章相关文献
BIORHEOLOGY文献大全abstract：:Plasma fractionation by membrane filtration permits the reinfusion of the patient with his own albumin. In this study, the influence of membrane nature and plasma flux on plasma fractionation in dead-end mode is investigated with acetate hollow fiber filters. It is found that transmembrane pressure TMP rises exponenti...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1991-281-204
更新日期：1991-01-01 00:00:00
abstract：BACKGROUND:Acute hemorheological responses to different types of aerobic exercises have never been compared in a single study in healthy people. OBJECTIVE:We aimed to compare acute effects of high intensity intermittent exercise (HIIE) and moderate intensity continuous exercise (MICE) on hemorheological parameters, in...
journal_title：Biorheology
pub_type： 杂志文章,随机对照试验
doi：10.3233/BIR-14012
更新日期：2014-01-01 00:00:00
abstract：:Since the sweet ketohexose L-sorbose causes overt hemolysis in dogs but not in man, we examined the possibility that L-sorbose induces a "prehemolytic state" of human red cells, manifesting itself as impairment of rheological red cell properties. After 2 hours incubation at 37 degrees C relative viscosity of red cell ...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1985-22302
更新日期：1985-01-01 00:00:00
abstract：:Blood vessels are always subjected to hemodynamic stresses including blood pressure and blood flow. The cerebral artery is particularly sensitive to hemodynamic stresses such as pressure and stretch, and shows contractions that are myogenic in nature; i.e., the mechanical response is generated by the vascular smooth m...
journal_title：Biorheology
pub_type： 杂志文章,评审
doi：
更新日期：2003-01-01 00:00:00
abstract：:The compressive stiffness of an elastic material is traditionally characterized by its Young's modulus. Young's modulus of articular cartilage can be directly measured using unconfined compression geometry by assuming the cartilage to be homogeneous and isotropic. In isotropic materials, Young's modulus can also be de...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:In the past few years there has been a considerable interest in the role of bone in osteoarthritis. Despite the increasing evidence of the involvement of bone in osteoarthritis, it remains very difficult to attribute the cause or effect of changes in subchondral bone to the process of osteoarthritis. Although osteoart...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:Using a large scale model and the concept of dimensional similarity, we have developed a dimensionless correlation which permits the estimation of the drag force of blood flow in an in vivo vessel on a leukocyte adherent to the vessel wall. This relationship is [formula: see text] where Re is a Reynolds number, Cd is ...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.1016/0006-355X(96)00011-X
更新日期：1996-03-01 00:00:00
abstract：:Nonlinear mathematical techniques now make it possible to quantify the complexity of an irregular time series through calculation of a parameter known as fractal dimension. In the present study, we use such an analysis to provide evidence that histamine-induced pressure oscillations in an isolated rabbit ear resistanc...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1993-305-605
更新日期：1993-09-01 00:00:00
abstract：:Shear stress-induced platelet aggregation requires von Willebrand factor (vWF), platelet glycoprotein (GP) Ib, GPIIb-IIIa, Ca2+, and adenosine diphosphate (ADP). Recent reports using vWF labeled with either 125I or fluorescein isothiocyanate (FITC) have demonstrated that in shear-fields, vWF binds to both GPIb and GPI...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.1016/S0006-355X(97)00004-8
更新日期：1997-01-01 00:00:00
abstract：:We previously reported that intraarticular injections of hyaluronan (HA), administered prophylactically to dogs in whom knee osteoarthritis had been induced by transection of the anterior cruicate ligament, did not significantly modify the intraarticular pathology but decreased the proteogylcan concentration of the ar...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:This paper proposes a model for wall shear stress in arterial stenosis based on boundary layer theory. Wall shear stress estimates are obtained by solving the momentum integral equation using the method proposed by Walz and applying this method to various stenosis geometries for Reynolds numbers (Re) of Re = 59-1000. ...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:In this paper we shall describe new mechanical models for the deformation of the actin filament bundles in kidney microvilli and osteocytic cell processes to see whether these cellular extensions, like the stereocilia on hair cells in the inner ear, can function as mechanotransducers when subject to physiological flow...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:Platelet margination (enhanced platelet concentration in the near wall region of a blood vessel) has been well documented in small vessels. In artery-sized vessels margination has only been demonstrated in one study, using ghost cell suspensions and under relatively non-physiologic conditions of steady flow and 50 cm ...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND:Biological cells exhibit complex mechanical properties which determine their responses to applied force. OBJECTIVE:We developed an optical method to probe the temporal evolution of power-law rheology of single cells. METHODS:The method consisted in applying optically a constant mechanical torque to a biref...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/BIR-15084
更新日期：2016-05-26 00:00:00
abstract：:Arterial hemodynamic forces may play a role in the localization of early atherosclerotic lesions. We have been developing numerical techniques based on overset or "Chimera" type formulations to solve the Navier-Stokes equations in complex geometries simulating arterial bifurcations. This paper presents three-dimension...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.1016/s0006-355x(99)80020-1
更新日期：1998-11-01 00:00:00
abstract：:A generalized dispersion model is used to obtain exact solution for unsteady convective diffusion in the presence of couple stresses. The effect of the couple stress parameter 'a' on the most dominant dispersion coefficient is clearly depicted. The dimensionless mean concentration distribution is obtained as a functio...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1986-23404
更新日期：1986-01-01 00:00:00
abstract：BACKGROUND:In the microcirculation, red blood cells (RBCs) were observed to be confined to an axial stream surrounded by a marginal RBC depleted layer. This axial accumulation of RBCs is considered to arise from the RBC deformability. OBJECTIVE:To quantitatively evaluate the effect of RBC deformability on their axial ...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/BIR-18166
更新日期：2018-01-01 00:00:00
abstract：:The purpose of the present study was to investigate the intracellular IL-1beta production and beta1 integrins (alpha4/beta1 and alpha5/beta1) expression on chondrocytes. Chondroytes monolayer (human chondrosarcoma cell line HEM-C55) were incubated for 12, 24 and 48 hours in the presence of Tumor Necrosis Factor-alpha ...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:The purpose of this study was to determine the shear rate at the wall in a symmetrically branched tube with a branch-to-trunk area ratio and angle of branching that were comparable to the human abdominal aorta. Velocity profiles were measured with a laser Doppler anemometer during steady and pulsatile flow in which th...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1982-191-233
更新日期：1982-01-01 00:00:00
abstract：:Atherosclerosis is the most frequent cause of death and severe chronic disability in North America and Europe. The atherosclerosis-prone apolipoprotein E (apoE)-deficient mice contain the entire spectrum of lesions observed during atherogenesis. Significant remodelling of the artery occurs in atherosclerosis. The aim ...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:The Cell Transit Analyser (CTA) provides a means to rapidly measure the deformability of large numbers of individual cells. It combines many of the advantages of micropipette studies with the simplicity and speed of filtrometry methods by measuring the duration of each resistive pulse generated as a cell passes throug...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1992-292-301
更新日期：1992-03-01 00:00:00
abstract：:The present study was designed to investigate the oxidant susceptibility of red blood cells (RBC) from four species (echidna, human, koala, Tasmanian devil) based on changes in cellular deformability. These species were specifically chosen based on differences in lifestyle and/or biology associated with varied levels ...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/BIR-2012-0599
更新日期：2011-01-01 00:00:00
abstract：:Orbitometry (Hartert) is a rheological ex-vivo method to follow up physical assembly of a coagulum in layers during natural intensity of flow by orbital movement. Fibrin elasticity in the Orbitometers mode of Resonance Thrombography is differentiated from platelet activity as well as e.g. from the effects of dissemina...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1990-27613
更新日期：1990-01-01 00:00:00
abstract：:The thixotropic parameters of whole blood from 314 healthy subjects (154 women, 160 men) were measured with our modified method by Low shear 30 Rheometer and calculated according Huang's equation. This communication offered the reference range of thixotropic parameters from man and woman group. The results demonstrate...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/bir-1991-283-409
更新日期：1991-01-01 00:00:00
abstract：:This study aims at quantifying the cellular mechanical properties based on a partitioning of the cytoskeleton in a cortical and a cytosolic compartments. The mechanical response of epithelial cells obtained by magnetocytometry - a micromanipulation technique which uses twisted ferromagnetic beads specifically linked t...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:Although most apparent in permanently misshapen irreversibly sickled erythrocytes (ISC), biochemical and structural alterations are present in the majority of sickle cell membranes. The relationship of membrane rigidity to cell shape and its dependence upon the internal hemoglobin cytosol are not clarified. We therefo...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:The blood flow immediately adjacent to the wall of a blood vessel or an artificial surface is of great interest. This flow defines the shear stress at the wall and is known to have a great physiological importance. The use of models is a viable method to investigate this flow. However, even in models the shear stress ...
journal_title：Biorheology
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:Stress relaxation in three varieties of cherries was studied using the penetration test with a cylindrical pin, 4 mm in diameter, having a flat tip. One half of the fruit was modified by partial skinning, since experiments show that skin approximately doubles the apparent modulus of elasticity of the cherries. The ski...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.1016/s0006-355x(97)00033-4
更新日期：1996-11-01 00:00:00
abstract：BACKGROUND:Bile, which is secreted by the liver, is essential for digesting fat and maintaining homeostasis. Although the rheology of bile is very important to its flow, its extensional viscosity has not been studied. OBJECTIVE:We investigated the stretching of bile and evaluated its extensional viscosity using a fila...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/BIR-190216
更新日期：2019-01-01 00:00:00
abstract：:Adhesion of monocytes (U-937 cells) along a silicone tube deployed with circular ring stents was studied to test the hypothesis that by intentionally inducing swirling flow in an endovascular stent, the adhesion of monocytes would be suppressed. The results revealed that under a normal flow condition, the flow disturb...
journal_title：Biorheology
pub_type： 杂志文章
doi：10.3233/BIR-120622
更新日期：2012-01-01 00:00:00
