Some applications of S. M. Joshi transform in statistics

Joshi, Jay

doi:10.1080/10652460310001600753

Cited by 5 publications

(5 citation statements)

References 5 publications

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“…These enhancements have been found to apply to a wide range of thermoplastics and some thermoset systems. [3][4][5] Although POSS molecules can be thought as the smallest particles of silica, they are physical equivalent in size to most polymer segment. 6,7 Introduction of fillers can affect the morphology and change the rheological behavior of the polymers that filled with nanosized fillers-filler and matrix interactive forces or polymer chain movement is restricted by filler particles.…”

Section: Introductionmentioning

confidence: 99%

Rheological behavior of polycarbonate/ultrafine octaphenyl silsesquioxane (OPS) composites

Cheng

Hao

et al. 2016

J of Applied Polymer Sci

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Polycarbonate (PC)/ultrafine polyhedral oligomeric octaphenyl silsesquioxane (OPS) composites were prepared by melt mixing method. The morphology and rheological behavior of PC/ultrafine OPS composites were investigated by scanning electron microscopy (SEM) melt indexer, high pressure capillary rheometer, and strain‐controlled rheometer. The SEM results show that ultrafine OPS is dispersed in PC as the size of submicron and has a good dispersion in PC matrix, and a certain extent compatibility between PC and ultrafine OPS is found. OPS aggregation is found through the cross section at high ultrafine OPS content. The results of melt flow index (MFI) and capillary rheometer indicate that ultrafine OPS can effectively decrease the apparent viscosity and improve the flow property and processability of PC matrix as a lubricant. The oscillatory rheological analysis indicates that the storage modulus increases with increasing OPS content, and the appeared platform of storage modulus exhibits the solid‐like behavior and the formation of three‐dimensional network in the composites. The complex viscosity of PC/OPS composite shows a quasi‐Newtonian regime at low OPS content and a typical shear‐thinning behavior at high OPS content. The Cole–Cole, Han, and van Gurp plots show that ultrafine OPS particle is compatible with PC at low content (≤3 wt %), and interaction between particle and particle is the major factor when OPS at high content (≥6 wt %). © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43638.

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Section: Introductionmentioning

confidence: 99%

Rheological behavior of polycarbonate/ultrafine octaphenyl silsesquioxane (OPS) composites

Cheng

Hao

et al. 2016

J of Applied Polymer Sci

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“…Concerns on the M dwarf systems habitability include: (i) tidal locking (Dole 1964), in which these planets should be to have liquid water within the conventional HZ. Nevertheless, this problem was subsequently reconsidered (Joshi 2003); (ii) large flare rates, which could give rise to relatively frequent episodes of very intense planetary irradiation with sterilizing X-ray and UV emissions, or originate long term atmosphere evaporation. Other effects on the planetary atmospheric chemistry of a strong stellar flares, such as the ejection of energetic particles, also have been investigated (Segura et al 2010).…”

Section: Introductionmentioning

confidence: 99%

X-ray detection of GJ 581 and simultaneous UV observations

Vitale

2013

A&A

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Context. The M3 dwarf GJ 581 hosts a rich system of exo-planets, some of which are potentially within or at the edge of the habitable zone. Nevertheless, the system habitability might be reduced by large and sterilizing high energy emission flares, if these are frequent. Aims. The GJ 581 radiation environment was studied with simultaneous X-ray and UV observations, which were performed with the XRT and UVOT instruments, respectively, on board of the Swift satellite. Methods. X-ray and UV data were analysed with the distributed standard tools. Results. The dwarf GJ 581 was detected for the first time in the 0.2−10 keV range with an intensity of (8 ± 2) × 10 −4 cts/s and a signal-to-noise ratio of 3.6. If black-body or APEC spectra are assumed, then the source X-ray flux is found to be between 1.8 and 3.3 × 10 −14 erg cm −2 s −1 and log 10 (L X ) between 25.914 and 26.176. Despite hints of X-ray variability, better statistics are needed to establish robust evidence for this property. The UV measurements, obtained during 13 pointings, are also reported. A combination of these Swift X-ray and Hubble Space Telescope UV measurements (with Lyman-alpha) indicate a low X-ray to UV luminosity ratio of ∼4%. Conclusions. Simultaneous X-ray and UV observations of GJ 581 are reported. These constitute an experimental view of the system radiation environment, which will be a useful input for the habitability studies of the GJ 581 planetary system.

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“…The results show that the minimum mean activation energy values from the FWO, KAS, and Starink methods for the first decomposition stage were 91.0, 89.6, and 88.6 kJ/mol, respectively, which are similar to the activation energy reported in the literature for the dehydration of CTT crystals. 16,17 There is good agreement among the calculated values with little deviation, demonstrating the consistency and reliability of the activation energies calculated using the three different kinetic models and various heating rates. The minor differences in the activation energy values arose from the approximations, assumptions, and mathematical formulations used in the different models.…”

Section: Media Heating Rate T I T Max T F (°C/min) (°C) (°C) (°C)mentioning

confidence: 69%

Effects of Amino Acids on the Crystallization of Calcium Tartrate Tetrahydrate

Polat

Aytan-Goze

2020

ACSi

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This work assesses the effects of various amino acids, including serine, alanine, methionine, and proline, on calcium tartrate tetrahydrate (CTT) crystals. The crystallization experiments were performed in batch mode at 25 °C, pH 9 with three amino acid concentrations. The CTT crystals were characterized by XRD, FTIR, SEM, particle size and zeta potential analysis. All of the amino acids used in this study were found to significantly affect the surface electrical charge, size, and morphology of the obtained crystals. In addition, the thermal decomposition of the produced crystals obtained in pure media was examined and the obtained data were used to investigate the decomposition kinetics of the crystals with the help of three different model-free kinetic methods, namely Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS), and Starink. The average activation energy of the crystals for the first, second, third, and fourth stages using the FWO, KAS, and Starink methods was calculated to be 91.

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Some applications of S. M. Joshi transform in statistics

Cited by 5 publications

References 5 publications

Rheological behavior of polycarbonate/ultrafine octaphenyl silsesquioxane (OPS) composites

Rheological behavior of polycarbonate/ultrafine octaphenyl silsesquioxane (OPS) composites

X-ray detection of GJ 581 and simultaneous UV observations

Effects of Amino Acids on the Crystallization of Calcium Tartrate Tetrahydrate

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