Results 61 to 70 of about 3,144,666 (363)

Infrared Spectrum Characteristics and Quantification of OH Groups in Coal

ACS Omega, 2023
The KBr pellet press method for detecting the infrared spectrum of coal is one of the commonly used methods for analyzing the types and content of functional groups in coal.
Fengwei Dai, Qiuying Zhuang, Ge Huang, Hanzhong Deng, Xun Zhang   +4 more
semanticscholar   +1 more source

Functional Bethe ansatz methods for the open XXX chain

, 2010
We study the spectrum of the integrable open XXX Heisenberg spin chain subject to non-diagonal boundary magnetic fields. The spectral problem for this model can be formulated in terms of functional equations obtained by separation of variables or ...
Frahm, Holger, Grelik, Jan H., Seel, Alexander, Wirth, Tobias   +3 more
core   +1 more source

Scaling properties of the redshift power spectrum: theoretical models [PDF]

, 2000
We report the results of an analysis of the redshift power spectrum $P^S(k,\mu)$ in three typical Cold Dark Matter (CDM) cosmological models, where $\mu$ is the cosine of the angle between the wave vector and the line-of-sight.
Ballinger W. E., Cole S., Cole S., Efstathiou G., Fisher K. B., Fisher K. B., G. Borner, Jing Y. P., Kaiser N., Mo H. J., Mo H. J., Mo H. J., Peacock J. A., Sheth R. K., Suto Y., Taylor A. N., Y. P. Jing   +16 more
core   +2 more sources

Dynamic Functional Network Connectivity Analysis in Autism Spectrum Disorder: An EEG Study

IEEE Access
Convergent evidence has suggested a significant effect of bumetanide exposure on brain connectivity in patients with autism spectrum disorder (ASD), yet the characteristics of favorable treatment outcome remains largely unknown. In this work, we aimed to
Seyedeh Negin Seyed Fakhari, Foad Ghaderi, Mehdi Tehrani-Doost, Nasrollah Moghadam Charkari   +3 more
doaj   +1 more source

Disrupted Dynamic Functional Connectivity in Distinguishing Subjective Cognitive Decline and Amnestic Mild Cognitive Impairment Based on the Triple-Network Model

Frontiers in Aging Neuroscience, 2021
Background: Subjective cognitive decline and amnestic mild cognitive impairment (aMCI) were widely thought to be preclinical AD spectrum disorders, characterized by aberrant functional connectivity (FC) within the triple networks of the default mode ...
Chen Xue, Wenzhang Qi, Qianqian Yuan, Guanjie Hu, Honglin Ge, Jiang Rao, Chaoyong Xiao, Chaoyong Xiao, Jiu Chen, Jiu Chen   +9 more
doaj   +1 more source

Genomic and Functional Analysis of Emerging Virulent and Multidrug-Resistant Escherichia coli Lineage Sequence Type 648

Antimicrobial Agents and Chemotherapy, 2019
The pathogenic extended-spectrum-beta-lactamase (ESBL)-producing Escherichia coli lineage ST648 is increasingly reported from multiple origins. Our study of a large and global ST648 collection from various hosts (87 whole-genome sequences) combining core
K. Schaufler, T. Semmler, L. Wieler, D. Trott, J. Pitout, G. Peirano, J. Bonnedahl, M. Dolejská, I. Literák, Stephan Fuchs, N. Ahmed, M. Grobbel, C. Torres, A. McNally, D. Pickard, C. Ewers, N. Croucher, J. Corander, S. Guenther   +18 more
semanticscholar   +1 more source

Conserving and Gapless Approximations for an Inhomogeneous Bose Gas at Finite Temperatures

, 1996
We derive and discuss the equations of motion for the condensate and its fluctuations for a dilute, weakly interacting Bose gas in an external potential within the self--consistent Hartree--Fock--Bogoliubov (HFB) approximation.
A. Griffin, A. Griffin, A.L. Fetter, A.L. Fetter, D.A. Huse, G. Baym, G. Baym, H. Shi, K. Huang, K.B. Davis, L. Kadanoff, M. Edwards, M.H. Anderson, P. Martin, P. Nozières, P.A. Ruprecht, P.C. Hohenberg, S. Beliaev, T.H. Cheung, T.J. Greytak, V.K. Wong, V.N. Popov, V.V. Goldman   +22 more
core   +2 more sources

Abnormal Functional Connectivity of Resting State Network Detection Based on Linear ICA Analysis in Autism Spectrum Disorder

Frontiers in Physiology, 2018
Some functional magnetic resonance imaging (fMRI) researches in autism spectrum disorder (ASD) patients have shown that ASD patients have significant impairment in brain response.
Xia-an Bi, Junxia Zhao, Qian Xu, Qi Sun, Zhigang Wang   +4 more
semanticscholar   +1 more source

SAR Window Functions: A Review and Analysis of the Notched Spectrum Problem [PDF]

, 2002
Imaging systems such as Synthetic Aperture Radar collect band-limited data from which an image of a target scene is rendered. The band-limited nature of the data generates sidelobes, or ''spilled energy'' most evident in the neighborhood of bright point-like objects.
Dickey, Fred M., Romero, Louis, Doerry, Armin W.   +2 more
openaire   +3 more sources

Human brain distinctiveness based on EEG spectral coherence connectivity

, 2014
The use of EEG biometrics, for the purpose of automatic people recognition, has received increasing attention in the recent years. Most of current analysis rely on the extraction of features characterizing the activity of single brain regions, like power-
B. Vegso, D. La Rocca, D. La Rocca, F. De Vico Fallani, Fabio Babiloni, Fabrizio De Vico Fallani, G. Kozmann, P. Campisi, P. Cserti   +8 more
core   +3 more sources