Results 11 to 20 of about 239,067 (222)

Integrated strategies in meniscus tissue engineering: from biomaterials to stem cell–driven regeneration [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology
The meniscus is a fibrocartilaginous tissue essential for load distribution, shock absorption, and knee joint stability, yet its intrinsic healing potential is limited, particularly in the avascular inner zone.
Puzhen Song   +4 more
doaj   +2 more sources

Seismic anisotropy in siliciclastic reservoir rocks [PDF]

open access: yes, 2006
The interpretation of geophysical field measurements of seismic anisotropy is presently limited by our knowledge of the controls of the elastic anisotropy of sedimentary rocks in the subsurface. Traditionally, laboratory ultrasonic velocity measurements
Maddock, Jamie Stewart
core   +7 more sources

LLB MACRO-SPIN MODELLING OF NANOGRANULAR L1o FePt HIGH ANISOTROPY THIN FILMS [PDF]

open access: yes, 2012
New recording media and recording methods are required if magnetic data storage is to continue the historic growth seen in the areal density, beyond the level currently imposed by the superparamagnetic limit.
Atkinson, Lewis
core   +6 more sources

Modeling of zonal anisotropic variograms

open access: yesLietuvos Matematikos Rinkinys, 2005
Most standard methods of geostatistical analysis are built upon the basic assumption of isotropy. However, spatial data in most cases are not isotropic. In practice typically we find data with zonal anisotropy.
Lina Budrikaitė
doaj   +3 more sources

Forms of anisotropy for spatial variograms

open access: yesLietuvos Matematikos Rinkinys, 2004
Frequently an observed spatial variable may have anisotropic variability which varies signi­ficantly with direction. ln this article overview of anisotropy forms for spatial variograms is presented. Different forms of variograms anisotropy were obtained
Lina Budrikaitė, Kęstutis Dučinskas
doaj   +3 more sources

Cement Sheath Integrity in Anisotropic Shale Formations: A Numerical Investigation

open access: yesGeofluids, 2022
Cement sheath should provide zonal isolation and structural support during the full life cycle of a well. However, achieving long-term cement sheath integrity under complex geological and operational conditions, especially in bedding shales characterized
Xiaorong Li   +4 more
doaj   +1 more source

Mesospheric winds measured by medium-frequency radar with full correlation analysis: error properties and impacts on studies of wind variance [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2020
The mesosphere is one of the most difficult parts of the atmosphere to sample; it is too high for balloon measurements and too low for in situ satellites.
M. Gibbins   +3 more
doaj   +1 more source

Anisotropy of Doppler spectral parameters in the VHF radar observations at MU and White Sands [PDF]

open access: yesAnnales Geophysicae, 2001
Significant differences are found between the mean spectral widths from beams in the meridional plane and in the zonal plane at both the MU and the White Sands VHF radars. The spectral width in the beam directed perpendicular to the prevailing wind
G. D. Nastrom, G. D. Nastrom, T. Tsuda
doaj   +1 more source

Climatological monthly characteristics of middle atmosphere gravity waves (10 min-10 h) during 1979-1993 at Saskatoon [PDF]

open access: yesAnnales Geophysicae, 1995
Saskatoon (52° N, 107°W) medium frequency (MF) radar data from 1979 to 1993 have been analyzed to investigate the climatology of irregular wind components in the height region 60-100 km.
N. M. Gavrilov, A. H. Manson, C. E. Meek
doaj   +1 more source

Propagation properties of Rossby waves for latitudinal β-plane variations of f and zonal variations of the shallow water speed [PDF]

open access: yesAnnales Geophysicae, 2012
Using the shallow water equations for a rotating layer of fluid, the wave and dispersion equations for Rossby waves are developed for the cases of both the standard β-plane approximation for the latitudinal variation of the Coriolis parameter f and a ...
C. T. Duba   +2 more
doaj   +1 more source

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