We study the linear stability of Poiseuille flow a viscoelastic upper convected Maxwell fluid in which rheological parameters depend on concentration particles suspended (dense suspension with negligible diffusion). After determining basic and profile we consider temporal three dimensional perturbation form stream-wise span-wise wave. derive linearized perturbed equation prove validity Squire’s...

In this work the effect of aspirin on stability rat blood erythrocyte membranes was studied, using acidic hemolysis method. Hemolysis rate erythrocytes shown to depend preservation time suspension. With increasing original value optic density suspension decreases and reduces. It also that in presence membrane low-stable increases, moreover, duration enhances, while leads decreasing both high-st...

OBJECTIVE The purpose of this study was to examine the stability of a generic lansoprazole product in a 3 mg/mL sodium bicarbonate suspension under room temperature and refrigerated conditions. METHODS Lansoprazole suspensions (3 mg/mL) were prepared in triplicate using an 8.4% sodium bicarbonate vehicle for each storage condition (room temperature and refrigerated). During 1 month, samples f...

The stability of cefprozil in oral suspension CEFZIL was studied by means of the stress stability test. Degradation was evaluated by using an HPLC method with UV detection (280 nm), as described in the monograph of Cefprozil for Oral Suspension, in USP 25. At increased temperature and relative air humidity the degradation of cefprozil in CEFZIL occurs as reversible-consecutive and parallel reac...

BACKGROUND Tear of the anterior cruciate ligament (ACL) is a common ligamentous injury of the knee. Reconstruction of this ligament is often required to restore functional stability of the knee. Outcome of ACL reconstruction is significantly affected by how the graft is fixed to the bone. This study is to determine if there is a different clinical outcome after cortical versus cortical-cancello...

In view of the results obtained by the determination of plasma viscosity by Harkness and others (1946) it seemed desirable to apply this method to the chronic rheumatic diseases, but owing to difficulties encountered in procuring the apparatus comparatively few tests had been made before the publication of similar trials by Cowan and Harkness (1947). In the latter paper erythrocyte sedimentatio...

In the simple suspension method, intended medicine is suspended in hot water when administered to a patient by tube. Suspension of laxative, magnesium oxide reported hydrolyze ester-type drugs. Because several angiotensin converting enzyme (ACE) inhibitors have ester bonds their structure, may cause incompatibility with an ACE inhibitor. The purpose this study was clarify effect on stability ei...

We describe a simple experimental tool that enables stability of multicomponent nanoparticle suspensions to be readily assessed by establishing a confinement-imposed chemical discontinuity at the interface between co-flowing laminar streams in a microchannel. When applied to examine Al(2)O(3) nanoparticle suspensions, this method readily reveals compositions that are susceptible to aggregation ...

A linear stability analysis was carried out for a dilute suspension of rigid spherical particles in cylindrical Couette flow. The perturbation equations for both the continuous fluid phase and the discontinuous particle phase were decomposed into normal modes resulting in an eigenvalue problem that was solved numerically. At a given radius ratio, the theoretical critical Taylor number at which ...