Biorheology. Supplement : the official journal of the International Society of Biorheology最新文献_第6页

The erythrocyte-stasis-meter (ESM): a device to determine a universal parameter for the flow characteristics of blood. 红细胞停滞仪(ESM):一种测定血液流动特性的通用参数的装置。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s111

H Radtke, H G Roggenkamp, S Wolf, C Mrowietz, H Kiesewetter

引用次数: 0

Microbial chromophore materials in circulating blood identified by laser micro Raman spectroscopy. 激光微拉曼光谱法鉴定循环血液中微生物发色团物质。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s160

S R Plouvier, P V Huong

引用次数: 5

Experimental approach to rouleau formation. Comparison of three methods. 鲁罗形成的实验方法。三种方法的比较。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s138

J F Stoltz, S Gaillard, F Paulus, O Henri, P Dixneuf

引用次数: 5

In vitro blood flows through small tubes. 在体外，血液流经小管。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s127

J P Bitoun, D P Ly, D Bellet

引用次数: 1

Improving accuracy of co-axial viscometry. 提高同轴粘度测定的精度。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s116

A Matrai, P T Flute, J A Dormandy

引用次数: 17

Interests and limits of continuous excitation photo-physical methods applied to cellular rheology. 应用于细胞流变学的连续激发光物理方法的兴趣和局限性。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s156

J C Andre, M Donner, M Bouchy, M L Viriot, J Y Jezequel, J F Stoltz

{"title":"Interests and limits of continuous excitation photo-physical methods applied to cellular rheology.","authors":"J C Andre, M Donner, M Bouchy, M L Viriot, J Y Jezequel, J F Stoltz","doi":"10.3233/bir-1984-23s156","DOIUrl":"https://doi.org/10.3233/bir-1984-23s156","url":null,"abstract":"It is possible to characterize the cohesion of the lipidic zones in cells or in membranes by using molecular emission spectroscopy techniques such as : fluorescence polarization, quenching reactions, intramolecular reactions. However, applying these techniques in biology can be improved by the use of pulsed excitations leading to the time-resolved evolutions of some properties of the probe, which can themselves be a function of their environment. The first and the last techniques, based on the use of diphenylhexatriene and dipyrenylpropane respectively are used in practice by steady state excitation. In the case of fluorescence polarization, it can be shown that the method can be applied, within certain limits, which have to be precised when studying the modifications in the membranes. This is also partly true for methods based on the use of intramolecular reactions. However these continuous excitation techniques usually only lead to a global result which is a function of several spectroscopic parameters and of the \"cohesion\" of the membrane. Then it can be shown that to go beyond this step of semi-quantitative analysis, it is necessary to use pulsed or modulated excitation methods. Moreover this more sophisticated technical approach implies a new theoretical effort to understand the molecular dynamics of the membranes.","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"315-22"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s156","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17647768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A nanosecond fluorometer for studies of rheological aspects of biomembranes. 用于研究生物膜流变学方面的纳秒荧光计。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s157

T Koyama, T Araiso, Y Shindo, T Arai

引用次数: 2

Recent progress in improving data processing in filtration measurements. 改进过滤测量数据处理的最新进展。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s140

P Teitel, H Malotta, M Leschke, H Schmid-Schönbein

引用次数: 1

Rheological approaches of arteries. 动脉的流变入路。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s129

R D Bauer

{"title":"Rheological approaches of arteries.","authors":"R D Bauer","doi":"10.3233/bir-1984-23s129","DOIUrl":"https://doi.org/10.3233/bir-1984-23s129","url":null,"abstract":"A fundamental problem of haemodynamics lies in the description of the rheological properties of arteries. The time and history dependency of stress and strain, the nonlinearity of the stress-radius relationship, and the activity of vascular smooth muscle complicate or even prevent a complete mathematical characterization of the arterial wall mechanics. Due to this nonlinearity, dynamic investigations were hitherto performed in excised arteries in vitro by means of small sinusoidal changes of stress and radius at different stress levels in a wide frequency range. To allow an analysis of the dynamic rheological properties of arteries in vivo, we have developed a procedure which permits the separate determination of the elastic, the viscous, and the inertial forces acting on the arterial wall. The stress can be subdivided into an elastic stress which is a function of radius (r), a viscous stress which is a function of dr/dt, and an inertial stress which is a function of d2r/dt2. These stresses are formulated as polynomials. Under cyclic loading and unloading, hysteresis loops appear in the stress-radius diagrams of arteries. Since the elastic stress-radius diagram must be free from any loop, the coefficients of the viscous and the inertial stress can be found by a fitting procedure, using the criterion of loop elimination. Investigations were performed on exposed canine arteries in vivo. The main result was that the elastic stress-radius curve was markedly nonlinear at greater pulse pressures. The viscous wall behaviour, too, was nonlinear and depended mainly on the square of the vessel radius.","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"159-67"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s129","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17647989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

On the capillary-tube viscometry of placental blood. 胎盘血的毛细管粘度测定。

Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s119

R B Whittington, J Harkness

{"title":"On the capillary-tube viscometry of placental blood.","authors":"R B Whittington, J Harkness","doi":"10.3233/bir-1984-23s119","DOIUrl":"https://doi.org/10.3233/bir-1984-23s119","url":null,"abstract":"This work was done as the first part of a continuing study of neonatal blood. In a recent paper (1), two parameters, \"A\" (relative whole-blood viscosity at unit rate of shear and 1% haematocrit) and \"beta\" (shear-sensitivity exponent) were proposed, as characteristics of a given blood-sample. Here, some 60 placentae yielded (after plasma-manipulation) 130 sub-samples having haematocrits ranging from 3% to 90%. Their viscosities were measured in a capillary viscometer set for a constant wall shear-stress of 1855 mPa. \"A\" and \"beta\" were calculated by the method given in (1). Multiple calculations on a number of sub-samples revealed systematic variations within any one blood; but when every A/beta ratio is plotted against the corresponding A, the results follow a smooth curve. This curve occupies a striking, almost central location when A-and-beta values from adult normal and pathological bloods (rotational viscometry) are superimposed on the diagram. An analytic form for the close correlation between haematocrit and relative placental blood-viscosity is given by the adoption of a single \"group A\" and \"group beta\" for all 130 results.","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"111-4"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17648309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1