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In the present paper, a new relationship for the pressure dependences of elastic constants is developed by using a new expression for the pressure dependence of bulk modulus and a method developed by Grover et al. The proposed relationship is applied to study elastic constants of MgO, NaCl, CaF₂, and CaO. The results obtained for elastic constants are found in good accordance with the experimental and first-principle results.

In this study, we focused on the investigation of phosphate removal using calcium oxide (CaO) and calcium hydroxide (Ca(OH)₂) which are mainly from the calcined shells as adsorbents. Hydroxylapatite Ca${}_{10}$(PO₄)₆(OH)₂, the component of industrial fertilizer was formed after the adsorption process following the XRD results. The phosphate removal increased from 20% to 97% with the aid of the mixture of flocculants alginic acid (AA), NaHCO₃ and CaCl${}_2\cdot$ 2H₂O in the case of 50 ppm phosphate concentration when the samples were filtered through 2.7 $\mu$m particle retention filter paper which is roughly equivalent to the case of phosphate removal rate of 0.2 $\mu$m membrane filter paper without flocculants (99%). The results suggest that AA, NaHCO₃ and CaCl${}_2\cdot$2H₂O as the flocculants are effective for phosphate removal from 20 to 100 ppm.

For investigating the thermal expansivity of solids under high pressures we have developed a formulation using the relationship between the reciprocal of pressure derivative of bulk modulus and the ratio of pressure and bulk modulus. The formulation presented here satisfies the boundary conditions both at zero-pressure and also in the limit of infinite pressure at extreme compression. A physically acceptable relationship has been obtained between the Anderson–Grüneisen parameter and the pressure derivatives of bulk modulus. The formulation has been applied to determine the pressure dependence of thermal expansivity of NaCl, MgO and the earth lower mantle minerals.

According to the mineral composition $({\mathrm{\text{NaAlSi}}}_2{\mathrm{\text{O}}}_6)$ of jadeite, ${\mathrm{\text{Al}}}_2{({\mathrm{\text{SiO}}}_3)}_3$ and ${\mathrm{\text{Na}}}_2{\mathrm{\text{SiO}}}_3\cdot 9{\mathrm{\text{H}}}_2\mathrm{\text{O}}$ with a molar ratio of 1:1 were selected as raw materials. One sample was undoped, and five samples were mixed with 0.4 wt.% ${\mathrm{\text{Cr}}}_2{\mathrm{\text{O}}}_3$, MnO, CoO, ${\mathrm{\text{TiO}}}_2$ and ${\mathrm{\text{Fe}}}_2{\mathrm{\text{O}}}_3$, respectively. The experimental studies were executed under the synthetic condition of 5 GPa pressure and $1450^{\circ }\mathrm{\text{C}}$ temperature using China-type large volume cubic high-pressure apparatus (CHPA) (SPD-6X1200). After the experiment, compositions of the synthetic jadeites were characterized by X-ray diffraction, microstructures characterized by field emission scanning electron microscopy (FESEM) and the high-resolution transmission electron microscopy (HRTEM), molecular vibration types investigated by Raman spectra. The color-causing ion of the synthetic jadeites was investigated by UV–Vis Spectra. The results show that the synthetic jadeites have excellent crystallinity and fine-grained texture and similar structural behavior with natural jadeite. UV–Vis Spectra indicated that different colors of samples have different ion absorption peaks, thus showing different colors. This experiment explored the geological conditions of synthetic jadeite by means of high pressure and high temperature (HPHT) to give a favorable experimental basis for synthetic jadeite and analyze the coloration mechanism of jadeite by way of ion-doping.

Electrokinetic property of various minerals in aqueous solutions has been studied through electroacoustic measurement in the present work. This study was carried out on the particles of calcite (CaCO₃), magnetite (Fe₃O₄), quartz (SiO₂), and galena (PbS) in an aqueous NaCl solution. Electrophoretic measurement was also applied to magnetite and quartz particles for the comparison of the two methods. The experimental results have shown that the point of zero charges (PZCs) of calcite, magnetite, and galena were at pH 12.5, 3.8 and 2.8, respectively, while no PZC for quartz appeared in the pH range of 1.5–11. The electroacoustic and electrophoretic measurements have obtained the same PZC and similar curves of zeta potential vs pH for magnetite and quartz particles in aqueous solutions. In addition, it has been found that a specific adsorption of Na⁺ cation was applied to magnetite surfaces in aqueous solutions if the electrolyte (NaCl) concentration in the solution is high enough, leading the isoelectric point to shift rightward. This observation might be more remarkable in electroacoustic measurement than electrophoretic measurement.

Herbal nutraceuticals are a recently evolved category of food and supplementary food, seeking great attention of both pharmaceutical and nutritional companies, resulting in proliferation of numerous value-added products aimed to provide twin effect of nutritional and clinical health benefits. Anthocephalus cadamba, a sanctified epical evergreen tree gain momentous amongst the wide array of medicinal prerequistic plants due to treasuries of minerals, phytochemicals and/or secondary metabolites which are accountable for prominent clinical manifestations along with nutritional allowance. Multifactorial in vitro and in vivo studies provide explicable evidences about its nontoxicity and antimicrobial, anticancerous, antidiabetic, anti-inflammatory, immunomodulatory, hepatoprotective, diuretic, laxative and lipid lowering activities along with their ethnomedical acquaintances. This review paper is devoted towards better understanding of the nutraceutical aspects of A. cadamba plant based on its phytoconstituents and disease-specific indications which makes it vulnerable for researchers to deliberate about its better exploitage and to understand reasonable molecular mechanism behind the scene.