搜索结果: 1-15 共查到“工学 Dependence”相关记录39条 . 查询时间(0.078 秒)
Limit Theory for Panel Data Models with Cross Sectional Dependence and Sequential Exogeneity
Panel Data Models Sequential Exogeneity
2015/9/22
The paper derives a general Central Limit Theorem (CLT) and asymptotic distributions for sample moments related to panel data models with large . The results allow for the data to be cross sec...
Low and mid-frequency pulsations in the polar cap: polarization pattern and MLT dependence of the spectral power during the descending phase of the solar cycle
ULF waves Antarctica Geomagnetic pulsations Polarization pattern upstream waves
2015/8/28
We present a statistical analysis of ULF (1-100 mHz) geomagnetic measurements conducted during years 2003- 2006 at the Italian/French base of Concordia at Dome C, close to the geomagnetic pole, and at...
Temperature Dependence of the Raman Intensity and the Bandwidth Close to the Order-Disorder Phase Transition in NaNO3
Raman Intensity Bandwidth NaNO3
2013/1/30
We analyze the temperature dependence of the Raman intensity using the experimental data according to a power-law formula close to the order-disorder transition (Tc = 549 K) in NaNO 3. From this analy...
Biogenic Isoprene and Its Impact on Human Health in Dependence on Meteorological Conditions
Biogenic Isoprene Ozone Urban Green Air Quality
2013/3/11
Urban green areas have an important implication on the local climate. A cross-linkage of many small green spaces could result in decreasing the effect of the urban heat island, but also increase peopl...
Temperature dependence of frequency response characteristics in organic field-effect transistors
MIS capacitors frequency response organic compounds organic field effect transistors 8432Tt 8530Tv
2016/12/2
The frequency response characteristics of semiconductor devices play an essential role in the high-speed operation of electronic devices. We investigated the temperature dependence of dynamic characte...
The orientation of element-specific moments was determined by using x-ray magnetic circular dichroism spectroscopy to explore exchange anisotropy of TbFe/Co bilayers. Perpendicular anisotropy of 15 ?C...
Temperature dependence of surface phonon polaritons from a quartz grating
Temperature dependence surface phonon polaritons quartz grating
2015/8/10
We report the temperature dependence of the surface phonon polariton (SPhP) spectra of a-SiO2(quartz), propagated to the far-field by a grating, in the temperature range between 300 K and 800 K....
Dependence of decaying homogeneous isotropic turbulence on initial conditions
initial conditions Decaying homogeneous isotropic turbulence
2011/8/29
We conduct a careful analysis of the data provided by Krogstad & Davidson (2011) and show that their data do not support their conclusions. According to their published data, their decaying approximat...
PDL and PMD Emulation with Control of Amplitude and Spectral Dependence to a Sub-Channel Level across the C-Band
Optical instruments Optical communications
2015/5/25
We present results of a polarization diverse LCoS wavelength processor. Applications include impairment simulation of broadband, channelized and intra-band PMD and PDL for detailed experimental sensit...
Dependence of the Ion-Aerosol Equivalent Attachment Coefficient on the Ratio of Polar Conductivities in a Steady State
Aerosol Ion Attachment coefficient
2016/3/28
The article discusses certain theoretical problems of the diffusion charging of aerosol particles in a bipolar ion
environment. The ratio of polar conductivities, induced by cluster ions of either po...
Temperature Dependence of Ultrasonic Longitudinal Guided Wave Propagation in Long Range Steel Strands
steel strand ultrasonic guided waves mode temperature coefficient
2011/8/4
Ultrasonic guided wave inspection is an effective non-destructive testing method which can be used for stress level evaluation in steel strands. Unfortunately the propagation velocity of ultrasonic gu...
Seasonal fluctuations and temperature dependence in photosynthetic parameters and stomatal conductance at the leaf scale of Populus euphraticaOliv
Bayesian statistics Farquhar et al. model maximum electron transport rate (J max) maximum rate of Rubisco carboxylation (Vcmax ) photosynthesis stomatal conductance transpiration Populus euphraticaOliv.
2013/9/2
A combined model to simulate CO2and H2O gas exchange at the leaf scale was parameterized using data obtained from in situ leaf-scale observations of diurnal and seasonal changes in CO2and H2O gas exch...
Dependence of plant-induced weathering of basalt and andesite on nutrient conditions
andesite basalt element release nutrient conditions plants weathering
2017/8/9
To study the effect of nutrient conditions on the weathering of rock, hydroponic cultivation experiments of two crop plants (soybean and maize) were conducted with two different levels of nutrient sup...
Spatial dependence of predictions from image segmentation: a methods to determine appropriate scales for producing land management information
geostatistics image segmentation scale spatial dependence variogram
2014/6/12
A challenge in ecological studies is defining scales of observation that correspond to relevant ecological scales for organisms or processes. Image segmentation has been proposed ...
LEARNING BAYESIAN DEPENDENCE MODEL FOR STUDENT MODELLING
Bayes network structure learning student modelling
2010/1/11
Learning a Bayesian network from a numeric set of data is a challenging
task because of dual nature of learning process: initial need to learn network
structure, and then to find out the distributio...