In this study, viscoelastic properties of xhantan gum (XG) and sodium alginate (SA) hydrogelling system were investigated at a definite range volumetric mixing ratio XG-SA in detail. The Carreau model gives reasonable fitting (R2 > 0.994) to the given by steady shear rheological measurements. addition, four element Maxwell is used capture well linear viscoelasticity resulting from oscillatory T...

The high blood rate that often occurs in arteries may play a role in artery failure and tortuosity which leads to blackouts, transitory ischemic attacks and other diseases. However, vibration and instability analysis of carotid arteries are lacking. The objective of this study is to investigate the vibration and instability of the carotid arteries conveying blood under axial tension with surrou...

A descriptive account of four polypore species collected from Himachal Pradesh, Punjab, and Union Territory Chandigarh has been provided. Among these, Fomes dahlii Henn., Ganoderma tsunodae (Yasuda ex Lloyd) Sacc., Xanthoperenniporia maackiae (Bondartsev & Ljub.) B.K.Cui Xing, Ji are described as new to India tropicum (Jungh.) Bres., Pradesh Chandigarh.

In this paper, an asymptotic expansion is used to derive a description of Phan-Tien Tanner / Oldroyd-B flows in the thin film situation without the classical “Upper Convective Maxwell” assumption. We begin with a short presentation of the Phan-Thien Tanner / Oldroyd-B models which introduce viscoelastic effects in a solute-solvant mixture. The three dimensional flow is described using five para...

This research investigated how the variation of temperature and shear rate affects viscosity ethanol gel propellants that use methyl cellulose as gellant and, in parts, boron energetic additive. Using a rotational viscometer cone-and-plate configuration, propellant data was recorded across range temperatures applied rates. The temperaturedependence modelled using an Arrhenius-type equation. For...

Alex Avdeef [1] and Samuel Yalkowsky [2] have independently studied the solubility and ionization properties of an investigational drug (NSC-639829). In the study conducted by Avdeef and coworkers, the pKa value derived from Henderson-Hasselbalch (HH) equation was 4.70, which was different from the value of 3.76 as determined experimentally by the Yasuda-Shedlovsky plot using the pKa values obt...