Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Kristin M. Poduska"'
Autor:
Boyang Gao, Kristin M. Poduska
Publikováno v:
Solids, Vol 3, Iss 4, Pp 684-696 (2022)
The aqueous and thermal stabilities of aragonite (CaCO3) powders against phase conversion are important for industrial applications that rely on calcium carbonate. We describe the synthesis and characterization of solution-precipitated aragonite powd
Externí odkaz:
https://doaj.org/article/9f865810f7a94469a5ddc529a6085e4c
Experimental monitoring of nonlinear wave interactions in crab orchard sandstone under uniaxial load
Autor:
Alison E. Malcolm, Lauren Coates, Kamal Moravej, Andrey Melnikov, Steve Butt, Kristin M. Poduska, Stefano Camera
Publikováno v:
Experimental Results, Vol 4 (2023)
When two waves interact within a rock sample, the interaction strength depends strongly on the sample’s microstructural properties, including the orientation of the sample layering. The study that established this dependence on layering speculated
Externí odkaz:
https://doaj.org/article/2e87da3a7f074a6880952ee08c6e3e27
Publikováno v:
Applied Spectroscopy
Photoacoustic spectroscopic detection of infrared absorption often produces spectra with enhanced intensities for weaker peaks, enabling the detection of features due to overtones and combinations, as well as less-abundant isotopic species. To illust
Publikováno v:
Journal of Coatings Technology and Research. 18:911-919
This study illustrates pervasive challenges in studying wetting dynamics, including dynamic contact angles, on irregularly roughened surfaces. We demonstrate that asymmetric water droplet shapes occur more than 50% of the time during static and dynam
Autor:
Jiaqi Cheng, Kristin M. Poduska
Publikováno v:
Nanomaterials, Vol 3, Iss 3, Pp 317-324 (2013)
We demonstrate a simple strategy to either prevent or enhance hydroxide incorporation in nanocrystalline solid-state metathesis reaction products prepared in ambient environments. As an example, we show that ZnCO3 (smithsonite) or Zn5(CO3)2(OH)6 (hyd
Externí odkaz:
https://doaj.org/article/d23ef733ff414124b31ad2e455f72690
Publikováno v:
Computation, Vol 1, Iss 1, Pp 16-26 (2013)
We show that a simple approach to building small computationally inexpensive clusters offers insights on specific structural motifs that stabilize the electronic structure of ZnO. All-electron calculations on ZniOi needle (i = 6, 9, 12, 15, and 18) a
Externí odkaz:
https://doaj.org/article/626a062696d940c7bbbc279c60d0ecba
Autor:
Boyang Gao, Kristin M. Poduska
Publikováno v:
Minerals; Volume 13; Issue 1; Pages: 110
We prepared solution-precipitated amorphous calcium carbonate by two similar methods and tracked structural changes over time as they crystallized. By cross-referencing mid-range infrared (400–4000 cm−1) with far-infrared (100–400 cm−1) spect
Publikováno v:
Physica Scripta. 97:125012
A comparison of three different isotropic non-linear elastic models uncovers subtle but important differences in the acoustoelastic responses of a material slab that is subjected to dynamic deformations during a pump-probe experiment. The probe wave
Autor:
Jiaqi Cheng, Kristin M. Poduska
Publikováno v:
ECS Journal of Solid State Science and Technology. 8:N1-N4
Impedance spectroscopy data show that polycrystalline ZnO films can show either increases or decreases in their effective resistances after UV exposure, depending on the frequency of the applied AC excitation. Simple equivalent circuit models, based
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
We compare mid- and far-infrared attenuated total reflectance spectra for calcite and aragonite, which are two polymorphs of calcium carbonate, CaCO 3 , in order to demonstrate which spectral feature changes can be attributed to phase (crystal struct