搜索结果: 1-15 共查到“知识库 理学 Layers”相关记录105条 . 查询时间(0.08 秒)
Low velocity and low electricalresistivity layers in the middle crust
seismic and electromagnetic studies Earth's crust Baltic and Ukranian shields
2015/9/14
Some Deep Seismic Sounding (DSS) revealed low velocity layers in the upper and middle crust of old platforms.The layers are often characterised by a lower electrical resistivity. It is not clear, howe...
Midnight variations of spreading of ionospheric sporadic E-layers before earthquakes
earthquake precursors Es-spread data analysis
2015/8/24
In the present study, ionospheric phenomena caused by earthquakes of magnitudes M >4.0 were investigated. Night-time observations of the spreading of sporadic E-layers (Es-spread) performed every 15 m...
Micro- to Fine-Scale Chemical Gradients and Layers in Stratified Coastal Waters
Stratified Coastal Waters Chemical Gradients and Layers
2015/8/6
Models of biogeochemical dynamics and chemical variability in coastal waters have traditionally relied on the assumption that small-scale mixing processes are sufficiently strong and isotropic to rapi...
A Model for the Reflectance of Thin Layers, Fronts, and Internal Waves and Its Inversion
Thin Layers Fronts Internal Waves
2015/8/6
The interplay of physical and biogeochemical processes in the ocean can result in well-defined vertical gradients and maxima in biological properties. When these gradients and maxima exist near the se...
We are all familiar with the irregular profiles from modern, high resolution conductivity-temperature-depth profilers (commonly called CTDs) freely falling vertical profilers, and towed thermistor cha...
Thin Layers: Observations of Small-Scale Patterns and Processes in the Upper Ocean
Small-Scale Patterns Processes
2015/8/6
Fore decades, marine scientists have been asking questions about the response of planktonic distributions and processes to physical forcing across a range of temporal and spatial scales. The mismatch ...
SWEEPING PRECONDITIONER FOR THE HELMHOLTZ EQUATION: MOVING PERFECTLY MATCHED LAYERS
Helmholtz equation perfectly matched layers high frequency waves preconditioners LDLt factorization Green’s function multifrontal methods optimal ordering
2015/7/14
This paper introduces a new sweeping preconditioner for the iterative solution of the variable coefficient Helmholtz equation in two and three dimensions. The algorithms follow the general structure o...
Re–Os isotope geochemistry in the surface layers of ferromanganese crusts from the Takuyo Daigo Seamount, northwestern Pacific Ocean
ferromanganese crust Re and Os isotopes geochemistry Takuyo Daigo Seamount northwestern Pacific Ocean
2017/4/10
Os isotope compositions in ferromanganese crusts (Fe–Mn crusts) have been used for the dating of model ages from
present to the Late Cretaceous. This dating method assumes that the Fe–Mn crusts prese...
Highly efficient blue organic light-emitting diodes using dual emissive layers with host-dopant system
ual emissive layer luminous efficiency blue OLED
2014/4/16
We fabricated highly efficient blue organic light-emitting diodes (OLEDs) by designing differing emitting layer structures with fluorescent host and dopant materials of 4,4-bis (2,2-diphenylyinyl)-1,1...
Some remarks about lidar data preprocessing and different implementations of the gradient method for determining the aerosol layers
Lidar Aerosol Wavelet Preprocessing
2015/8/17
The determination of atmospheric aerosol layers from lidar returns is possible through automated algorithms. This product is useful, for example, in monitoring the Boundary Layer Height (BLH) as well ...
Uniform Convergence of Godunov Schemes on Moving Meshes for Dynamical Boundary Layers
Convergence rate moving mesh method convection-dominated equation Godunov scheme
2012/8/8
Uniform Convergence of Godunov Schemes on Moving Meshes for Dynamical Boundary Layers 。
The Long Term Effects of Fairly Low-level of Supplemental Fat on the Productive Performance of Commercial Layers
Supplemental Fat Laying Hen Performance Liver and Abdominal Fat Weight
2016/5/9
Laying hens were fed commercial diets added with supplemented fat (SFAT) at 0.6, 1.2, and 1.8% in order to study the long term dietary effects - on - their productive performance from 22 to 75 wk of a...
Chemo-mechanical instabilities in polarizable active layers
Chemo-mechanical instabilities polarizable active layers Biological Physics
2012/4/19
We formulate and explore a generic continuum model of a polarizable active layer with neo-Hookean elasticity and chemo-mechanical interactions. Homogeneous solutions of the model equations exhibit a s...
Thermochromism of Silver Oxide for Optical Switching Layers in Volumetric Optical Disks
phase change volumetric optical disk dual layer optical disk optical switching layer thermo-chromatic material thermochromism silver oxide
2011/11/28
For reading and writing on a lower targeted recording layer ofvolumetric optical disks, transmitted laser power is decreased by absorption and reflection ofthe upper layers. Thus, a layer ofthermo-chr...
Broadband enhanced transmission through the stacked metallic multi-layers perforated with coaxial annular apertures
Broadband enhanced transmission stacked metallic multi-layers coaxial annular apertures
2011/8/11
Abstract: This paper theoretically and experimentally presents a first report on broadband enhanced transmission through stacked metallic multi-layers perforated with coaxial annular apertures (CAAs)....