Prashant Gupta - Academia.edu (original) (raw)
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Papers by Prashant Gupta
DAE SOLID STATE PHYSICS SYMPOSIUM 2019
Survey of Ophthalmology, 2005
Dissimilarities in ocular physiopathology exist between human males and females. These difference... more Dissimilarities in ocular physiopathology exist between human males and females. These differences can be observed in the lacrimal and other eye-associated glands, the ocular surface, the crystalline lens, and the retinochoroid complexes. Literature on the subject revealed that because of sex steroid hormone (estrogen, progesterone, and androgen) actions, various physiological conditions, such as age, menstrual cycles, pregnancy, and menopause or andropause, where the hormone milieu changes, affect vision. Well-designed scientific studies are lacking on the subject, although such studies hold much potential value. This review analyzes the relatively new area of hormones and vision. (Surv
Journal of the Ceramic Society of Japan, 2009
A spray-drying process was applied to the mass-production of mesoporous silica particles. The app... more A spray-drying process was applied to the mass-production of mesoporous silica particles. The applied nozzle pressure and amount of solvent in the precursor solution were varied to control the average particle size. The particle-size distribution showed a bell curve with a normal distribution. As the nozzle pressure was increased from 0.05 to 0.20 MPa, the average particle size was decreased proportionally. In addition, as the surfactant concentrations in the precursor solutions were decreased, the average particle size was decreased. Based on the results of low-angle X-ray diffraction measurements, N2 adsorption measurements, and TEM observations, it was proven that well-ordered mesoporous structures were formed inside the particles. It is proved that the spray-drying conditions do not affect the mesoporous structures but do affect the average particle size.
Industrial & Engineering Chemistry Research, 2009
The objective of this study was to develop a unified correlation for the volumetric mass-transfer... more The objective of this study was to develop a unified correlation for the volumetric mass-transfer coefficient (kLa) and effective interfacial area (a) in bubble columns for various gas−liquid systems using support vector regression (SVR-) based modeling technique. From the data published in the open literature, 1600 data points from 27 open sources spanning the years 1965−2007 for kLa and 1330 data points from 28 open sources spanning the years 1968−2007 for a were collected. Generalized SVR-based models were developed for the relationship between kLa (and a) and each design and operating parameters such as column and sparger geometry, gas−liquid physical properties, operating temperature, pressure, superficial gas velocity, and so on. Further, these models for kLa and a are available online at http://www.esnips.com/web/UICT-NCL. The proposed generalized SVR-based correlations for kLa and a have prediction accuracies of 99.08% and 98.6% and average absolute relative errors (AAREs) o...
DAE SOLID STATE PHYSICS SYMPOSIUM 2019
Survey of Ophthalmology, 2005
Dissimilarities in ocular physiopathology exist between human males and females. These difference... more Dissimilarities in ocular physiopathology exist between human males and females. These differences can be observed in the lacrimal and other eye-associated glands, the ocular surface, the crystalline lens, and the retinochoroid complexes. Literature on the subject revealed that because of sex steroid hormone (estrogen, progesterone, and androgen) actions, various physiological conditions, such as age, menstrual cycles, pregnancy, and menopause or andropause, where the hormone milieu changes, affect vision. Well-designed scientific studies are lacking on the subject, although such studies hold much potential value. This review analyzes the relatively new area of hormones and vision. (Surv
Journal of the Ceramic Society of Japan, 2009
A spray-drying process was applied to the mass-production of mesoporous silica particles. The app... more A spray-drying process was applied to the mass-production of mesoporous silica particles. The applied nozzle pressure and amount of solvent in the precursor solution were varied to control the average particle size. The particle-size distribution showed a bell curve with a normal distribution. As the nozzle pressure was increased from 0.05 to 0.20 MPa, the average particle size was decreased proportionally. In addition, as the surfactant concentrations in the precursor solutions were decreased, the average particle size was decreased. Based on the results of low-angle X-ray diffraction measurements, N2 adsorption measurements, and TEM observations, it was proven that well-ordered mesoporous structures were formed inside the particles. It is proved that the spray-drying conditions do not affect the mesoporous structures but do affect the average particle size.
Industrial & Engineering Chemistry Research, 2009
The objective of this study was to develop a unified correlation for the volumetric mass-transfer... more The objective of this study was to develop a unified correlation for the volumetric mass-transfer coefficient (kLa) and effective interfacial area (a) in bubble columns for various gas−liquid systems using support vector regression (SVR-) based modeling technique. From the data published in the open literature, 1600 data points from 27 open sources spanning the years 1965−2007 for kLa and 1330 data points from 28 open sources spanning the years 1968−2007 for a were collected. Generalized SVR-based models were developed for the relationship between kLa (and a) and each design and operating parameters such as column and sparger geometry, gas−liquid physical properties, operating temperature, pressure, superficial gas velocity, and so on. Further, these models for kLa and a are available online at http://www.esnips.com/web/UICT-NCL. The proposed generalized SVR-based correlations for kLa and a have prediction accuracies of 99.08% and 98.6% and average absolute relative errors (AAREs) o...