نتایج جستجو برای: pand
تعداد نتایج: 618 فیلتر نتایج به سال:
Le développement des collectivités est une approche utilisée par les intervenants collectifs afin d’améliorer la qualité et conditions de vie au sein territoriales. Cet article a pour objectif décrire effets pandémie COVID-19 sur l’action collective à partir d’une revue narrative littérature internationale, avec un accent publicatio...
[1] The unusual reactivation of the North China Craton (NCC) challenges the classical views concerning the strength and stability of cratonic lithosphere. By using teleseismic body-waves recorded at 250 seismic stations, this paper presents high-resolution North China Models of Pand S-wave velocity based on finite-frequency kernel tomography. Both Pand S-wave velocity models reveal that: (1) an...
Novel thermoelectric oxides were developed, produced, and characterized to demonstrate their promising thermoelectric conversion potential in a thermoelectric converter. Four-leg thermoelectric oxide modules were fabricated by combining pand n-type oxide thermoelements made of pressed polycrystalline GdCo0.95Ni0.05O3 and CaMn0.98Nb0.02O3, respectively. In these modules, the pand n-type thermoel...
We propose elastic isotropic wavefield tomography formulated with the misfit of observed and recorded data as the objective function. The adjoint-state method enables efficient calculation of the gradient of this data misfit function. We solve this optimization problem with the gradient-descent method in order to update the model parameters iteratively. Using the elastic isotropic wave-equation...
Compressional(Vp) and shear-wave (Vs) velocities were determined within earthen levees on the Rio Grande River in south Texas, south New Mexico and New Orleans. A loosely fitting relationship was developed to better characterize the internal condition of the levees. Seismic data were incorporated with surface observations, existing core taken from the levee, and airborne EM data acquired. Sever...
We investigate the three-dimensional Pand S-wave attenuation (Q P and Q S ) structures of the crust around the source region of the 2016 Kumamoto earthquakes, Japan. To estimate the attenuation structures, the path-averaged attenuation factor t∗ is estimated from the amplitude decay rate of the Pand S-wave spectra corrected for the source spectrum. The Q P and Q S structures are estimated by to...
Poly(3-hydroxypropionate) (P3HP) is a thermoplastic with great compostability and biocompatibility, and can be produced through several biosynthetic pathways, in which the glycerol pathway achieved the highest P3HP production. However, exogenous supply of vitamin B12 was required to maintain the activity of glycerol dehydratase, resulting in high production cost. To avoid the addition of VB12, ...
Flow-induced biaxiality is simulated for a uniaxial discotic nematic liquid crystal subjected to a constant uniaxial, isothermal, incompressible, irrotational, extensional, three dimensional flow, using a previously presented model [Singh A-Pand Rey A D., J Phys. II
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