the aim of this study is to prepare novel sorbitol based extended release tablets by melt dispersion method using carbamazepine as a model drug. carbamazepine was melted along with sugar alcohol to get melt dispersion granules (mgds) and was characterized by differential scanning calorimetry (dsc), powder x-ray diffractometry (xrd) and solubility study. the physical and chemical parameters of m...

Introduction: The South Pole-Aitken (SPA) Basin is the largest, oldest basin on the Moon. The extreme size of the basin, ≤2,500 km in diameter and a present depth of up to 13km [1,2], suggests that much of the upper crust would have been excavated during the formation/impact event, exposing the lower crust or upper mantle. Also, a large volume of impact melt breccia containing extensive lower c...

The mathematical modelling of the fluid flow and heat transfer behaviour of the steel melt in the tundish is carried out for a single strand tundish. The flow dynamics and heat transfer in the tundish is analysed by presenting the velocity field, Residence time distribution (RTD) curves and the temperature profiles by changing the geometrical parameters such as the width, the bath height, their...

Amylose and polytetrahydrofuran (PTHF) are mixed in an aqueous solution to form inclusion complexes. DSC shows that immediate mixing results in complexes having lower melting temperatures compared with complexes prepared with longer mixing times. The washed complexes melt at higher temperatures compared with the corresponding unwashed complexes. XRD indicates that amylose-PTHF complexes diffrac...

Nanobiocomposites of poly(lactic acid) (PLA) with 3–5 wt% organically modified montmorillonite (OMMT) were prepared by melt compounding in two different mixers, miniature twin-screw extruder and internal batch mixer, leading to different degrees of dispersion. The progress of dispersion was characterized by melt rheology coupled with light attenuation. Processed PLA/OMMT samples showed percolat...

[1] Abstract: We studied trace element geochemistry and petrology of the crust-mantle transition zone (MTZ) in the Samail massif of the Oman ophiolite to constrain the location where different primitive magmas mix beneath an oceanic spreading ridge. The MTZ is the deepest location where crystallization took place and thus is an ideal place to determine the compositional diversity of melts leavi...

Terrestrial radar interferometry (TRI) is a new technique for studying ice motion and volume change of glaciers. TRI is especially useful for temporally and spatially dense measurements of highly dynamic glacial termini. We conducted a TRI survey of Breiðamerkurjökull, a marineterminating glacier in Iceland, imaging its terminus near the end of the melt season in 2011, 2012 and 2013. The ice ve...

The attainable-region approach for reaction, mixing, and separation is applied for step-growth melt polycondensations. A concentration-based formulation is applied to develop hybrid reactorseparator models for the two-phase continuous stirred tank reactor and plug-flow reactor with simultaneous vapor removal. The evaporation of the volatile byproducts, which is typically limited by liquid-phase...

In this study, the crystallization behavior of a 65GeO2-15PbO-10MgF2-10MgO glass (prepared by the conventional melt quenching technique) has been investigated. The microstructure and crystallization behaviors of this glass were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), non-isothermal differential thermal analysis (DTA) and Fourier transform infrared spectr...