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Immediately downstream effects of Three Gorges Dam on channel sandbars morphodynamics between Yichang-Chenglingji Reach of the Changjiang River, China
sandbars morphodynamics Three Gorges Dam (TGD) remote sensing images Yichang-Chenglingji Reach Changjiang River
2018/4/9
Sandbars are of vital ecological and environmental significance, which however, have been intensively influenced by human activities. Morphodynamic processes of sandbars along the Yichang-Chenglingji ...
Building a Better Alligator:Researchers Develop Advanced Three-Dimensional Models of Bite Data to Study Dinosaurs,Birds,Crocodiles
Better Alligator Advanced Three-Dimensional Models Bite Data Dinosaurs Birds Crocodiles
2017/7/21
The skulls of alligators protect their brains, eyes and sense organs while producing some of the most powerful bite forces in the animal kingdom. The ability to bite hard is critical for crocodilians ...
Implicit numerical integration of a three-invariant, isotropic/kinematic hardening cap plasticity model for geomaterials
Kinematic hardening Spectral decomposition Plasticity Geomechanics Implicit integration
2015/7/1
The mechanical constitutive behavior of geomaterials is quite complex, involving pressure-sensitive yielding, differences in strength in triaxial extension vs. compression, the Bauschinger effect, dep...
Estimation of Natural Gas Production, Import and Consumption in Brazil Based on Three Mathematical Models
Natural Gas Mathematical Modeling Logistic Model Exponential Model Model of Von Bertalanffy
2013/3/8
A mathematical model capable of providing a forecast of future consumption and import of natural gas is essential for the planning of the Brazilian energy matrix. The aim of this study is to compare t...
Osmium concentrations and 187Os/188Os ratios of three sediment reference materials
Os concentration Os isotope sediment reference material Geochemical Survey of Japan heterogeneous Os
2017/4/11
187Os/188Os ratios and osmium concentrations were analyzed in sedimentary reference materials JSd-3, JMS-1, and
JMS-2, issued by the Geological Survey of Japan, using the isotope dilution method with...
The Present Situation and Design Strategy of Mountain City's Lake Park - a Case of Lake Park in Three Gorge Reservoir Area
Design Strategy Mountain City's Lake Park Present Situation Tree Gorge Reservoir Area
2011/12/15
At present, there are many problems in the landscape design of waterfront area in Chongqing city. With the build of Tree Gorge Reservoir, many lakes were formed, so the landscape of lake park plays ve...
Isotope composition of bulk carbon in replicated Sphagnum peat cores from three Central European high-elevation wetlands
peat Sphagnum carbon C sequestration isotopes
2017/8/9
Several processes may contribute to systematic downcore trends in δ13C of bulk Sphagnum peat. Whereas changes in water availability during C assimilation may change δ13C values in both a negative and ...
Three global carbon isotope shifts in the Silurian of Podolia (Ukraine):stratigraphical implications
carbon isotopes correlation Podolia Silurian stratigraphy Ukraine
2009/10/21
Podolia is a classical Silurian area in the southwestern part of the Ukraine. Shallow to open shelf rocks cropping out there are usually, except for a few dolomitic horizons, highly fossiliferous and ...
RETENTION OF FLUORIDE FROM INDUSTRIAL ACIDIC WASTEWATER AND NaF SOLUTION BY THREE TUNISIAN CLAYEY SOILS
Acidic wastewater Clayey soil Fluoride removal Freundlich isotherm model Industrial wastewater Langmuir isotherm models Tunisian clayey soils
2011/11/11
Clayey soil samples, Sebkhat El Malah-El Mkhacherma (MK), Jebel Haidoudi (H), and Zemlet El Beidha (ZB), from three regions in Southeast Tunisia were evaluated for their effectiveness to remove fluori...
THREE DIMENSIONAL MODELING AND VISUALIZATION OF WEATHERED ROCK SURFACE
3D Modeling Measurement Visualization
2015/3/9
This study focused on the quantification of weathering process, i.e. morphology of weathered stone surface which could
provide very useful information for the determination of different weathering r...
Three-Dimensional Crystal Structures of Illite-Smectite Minerals in Paleozoic K-Bentonites from the Appalachian Basin
Bentonite Cis-Vacant Octahedra Crystal Structure Illite-Smectite Polytype Rotational Disorder X-ray Diffraction
2011/12/2
Abstract: The three-dimensional crystal structures of illite-smectite (I-S) in K-bentonite samples from the Appalachian Basin are characterized by rotational disorder in the stacking sequence of 2:1 i...
Phase Analysis of Clays Using an Expert System and Calculation Programs for X-Ray Diffraction by Two- and Three-Component Mixed-Layer Minerals
Clay Analysis Expert System Mixed-Layer Minerals Phase Analysis XRD
2011/12/2
Abstract: X-ray phase analysis of clays is difficult because these materials generally consist of a mixture of different phases, i.e., mixed-layer minerals, individual clay minerals (non mixed-layer),...
Three- and five-quantum 17O MAS NMR of forsterite Mg2SiO4
Three- and five-quantum 17O MAS NMR forsterite Mg2SiO4
2012/3/31
17Three- and five-quantum O MAS NMR experiments are used to resolve fully the three crystallo-
graphically distinct oxygen species in forsterite (Mg
SiO ). The chemical shift and quadrupolar pa-2 4...
Trace element zoning and incipient metamictization in a lunar zircon: Application of three microprobe techniques
Trace element zoning incipient metamictization lunar zircon Application of three microprobe techniques
2012/4/6
Wehave determined major(Si,Zr,Hf),minor(AI,Y,Fe,P),and trace element (Ca, Sc,Ti,Ba,REE,Th,U)concentrations and Ramanspectra ofazoned, 200~mzircon grainin lunar sample 14161,7069,aquartz monzodioritebr...
Three novel isograds in metamorphosed siliceous dolomites from the Ballachulish aureole, Scotland
novel isograds metamorphosed siliceous dolomites Ballachulish aureole Scotland
2012/4/5
Isograds weremapped in siliceous dolomites from the Ballachulish aureole onthe basis of the formation of geikielite (MgTi03), baddeleyite (Zr02), and qandilite (Mg2Ti04) by the following model reactio...