Results 61 to 70 of about 345,147 (195)

Reconstruction of the Primordial Power Spectrum by Direct Inversion

, 2009
We introduce a new method for reconstructing the primordial power spectrum, $P(k)$, directly from observations of the Cosmic Microwave Background (CMB).
A. Lewis, A.A. Starobinsky, C.R. Contaldi, Carlo R Contaldi, G. Nicholson, G. Nicholson, Gavin Nicholson, HST collaboration, J. Martin, J.R. Bond, L. Verde, M. Bridges, M. Joy, N. Kogo, P. Mukherjee, P. Mukherjee, P. Mukherjee, P. Paykari, Paniez Paykari, Planck collaboration, R.K. Jain, R.K. Jain, S. Hannestad, Supernova Cosmology Project collaboration, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, WMAP collaboration, Y. Wang   +27 more
core   +1 more source

Joint Gravity and Magnetic Inversion Using CNNs’ Deep Learning

Remote Sensing
Enhancing the reliability of inversion results has always been a prominent issue in the field of geophysics. In recent years, data-driven inversion methods leveraging deep neural networks (DNNs) have gained prominence for their ability to address non ...
Zhijing Bai, Yanfei Wang, Chenzhang Wang, Caixia Yu, Dmitry Lukyanenko, Inna Stepanova, Anatoly G. Yagola   +6 more
doaj   +1 more source

Weak Topological Insulators in PbTe/SnTe Superlattices

, 2013
It is desirable to realize topological phases in artificial structures by engineering electronic band structures. In this paper, we investigate $(PbTe)_m(SnTe)_{2n-m}$ superlattices along [001] direction and find a robust weak topological insulator phase
Duan, Wenhui, Fu, Liang, Liu, Chaoxing, Liu, Junwei, Yang, Gang   +4 more
core   +2 more sources

Pseudo-2D MT inversion technique for small-frame TEM and its application in advance geological prediction

Meitian dizhi yu kantan
ObjectiveTo address the bottlenecks of low computational efficiency and impracticality of multi-dimensional inversion in the advance geological prediction based on the transient electromagnetic method (TEM), this study developed a pseudo-two-dimensional (
Ziqiang HAN, Longzhi WANMA, Xiangfeng LI, Yongqiang YANG, Xiaoming ZHU, Chengxian LUO, Li TANG   +6 more
doaj   +1 more source

A semiclassical optics derivation of Einstein's rate equations

, 2012
We provide a semiclassical optics derivation of Einstein's rate equations (ERE) for a two-level system illuminated by a broadband light field, setting a limit for their validity that depends on the light spectral properties (namely on the height and ...
de Valcárcel, Germán J., Hoeppner, Robert, Roldán, Eugenio   +2 more
core   +1 more source

A Real-Time Interpretation Model for Downhole Pressure of Dual Measuring Points in Managed Pressure Drilling

Shiyou jixie, 2019
Because of the insufficient inversion parameters of the single point measurement data interpretation model, the pressure change cannot be accurately revealed.
He Miao, Liu Gonghui, Li Jun, Li Mengbo, Li Yujie, Xu Mingbiao   +5 more
doaj  

Stochastic inversion method based on compressed sensing frequency division waveform indication prior

Frontiers in Earth Science
The stochastic inversion method using logging data as conditional data and seismic data as constraint data has a higher vertical resolution than the conventional deterministic inversion method.
Minmin Huang, Leyi Xu, Yanhui Zhu, Ye He, Zhiye Li, Ying Lin   +5 more
doaj   +1 more source

$T_1$- and $T_2$-spin relaxation time limitations of phosphorous donor electrons near crystalline silicon to silicon dioxide interface defects

, 2009
A study of donor electron spins and spin--dependent electronic transitions involving phosphorous ($^{31}$P) atoms in proximity of the (111) oriented crystalline silicon (c-Si) to silicon dioxide (SiO$_{2}$) interface is presented for [$^{31}$P] = 10$^{15}
A. Schweiger, A. Stesmans, C. Boehme, D. Kaplan, D. R. McCamey, N. M. Atherton, S.-Y. Lee, S.-Y. Paik, W. J. Baker   +8 more
core   +1 more source

Evaluating long-term settlements under complex traffic loads via explicit cyclic model augmented by intelligent optimization

AI in Civil Engineering
Accurate prediction of long-term settlement under complex traffic loads remains a pivotal challenge for the safety and durability of transportation infrastructure.
Shaofei Guo, Jiafeng Zhang, Zhenhao Shi, Yang Li, Jianjun Li, Jiangu Qian   +5 more
doaj   +1 more source

The scene superiority effect: object recognition in the context of natural scenes [PDF]

, 2011
Four experiments investigate the effect of background scene semantics on object recognition. Although past research has found that semantically consistent scene backgrounds can facilitate recognition of a target object, these claims have been challenged
Yao, Richard
core