Results 31 to 40 of about 2,595,527 (292)

Gaussian Local Phase Approximation in a Cylindrical Tissue Model

Frontiers in Physics, 2021
In NMR or MRI, the measured signal is a function of the accumulated magnetization phase inside the measurement voxel, which itself depends on microstructural tissue parameters.
Lukas T. Rotkopf, Eckhard Wehrse, Eckhard Wehrse, Heinz-Peter Schlemmer, Christian H. Ziener   +4 more
doaj   +1 more source

Performance Degradation in Cross-Eye Jamming Due to Amplitude/Phase Instability between Jammer Antennas

Sensors, 2021
Cross-eye gain in cross-eye jamming systems is highly dependent on amplitude ratio and the phase difference between jammer antennas. It is well known that cross-eye jamming is most effective for the amplitude ratio of unity and phase difference of 180 ...
Je-An Kim, Joon-Ho Lee
doaj   +1 more source

Expansion Velocity of Ejecta in Tycho's Supernova Remnant Measured by Doppler Broadened X-ray Line Emission

, 2010
We show that the expansion of ejecta in Tycho's supernova remnant (SNR) is consistent with a spherically symmetric shell, based on Suzaku measurements of the Doppler broadened X-ray emission lines. All the strong K_alpha line emission show broader widths
Akihiro Furuzawa, Albinson, Asami Hayato, Aya Bamba, Badenes, Cassam-Chenaï, Dwarkadas, Furuzawa, Ghavamian, Hideyo Kunieda, Hiroya Yamaguchi, Hughes, Hwang, Hwang, Hwang, Ishisaki, John P. Hughes, Katsuda, Kazuo Makishima, Kenzo Kinugasa, Koyama, Midori Ozawa, Ota, Ozawa, Ruiz-Lapuente, Satoru Katsuda, Schwarz, Schwarz, Serlemitsos, Smith, Takahashi, Tamagawa, Toru Tamagawa, Uchiyama, Una Hwang, Warren, Yamaguchi, Yukikatsu Terada   +37 more
core   +1 more source

Different Approaches Towards Electricity Transmission Expansion [PDF]

Review of Network Economics, 2003
There is an intense debate regarding the best way to attract investment for the long-term expansion of an electricity transmission network. We study three hypotheses: the long-term financialtransmission- right hypothesis; the incentive-regulation hypothesis; and the market-power hypothesis.
openaire   +2 more sources

The c-function expansion of a basic hypergeometric function associated to root systems [PDF]

, 2014
We derive an explicit c-function expansion of a basic hypergeometric function associated to root systems. The basic hypergeometric function in question was constructed as explicit series expansion in symmetric Macdonald polynomials by Cherednik in case ...
Gasper, Gindikin, Heckman, Heckman, Jasper Stokman, Koornwinder, Macdonald, Noumi, Ruijsenaars, Springer, Stokman, Stokman   +11 more
core   +4 more sources

Dynamic Expansion of Urban Land in China’s Coastal Zone since 2000

Remote Sensing, 2022
Although a major region with strong urbanization, there is not yet a systematic and comprehensive understanding of urban expansion during the last 20 years for China’s coastal zone.
Peipei Du, Xiyong Hou, He Xu
doaj   +1 more source

Two Different Techniques for Alveolar Ridge Expansion [PDF]

Dental Science Updates, 2020
Abstract: Aim of the study: To evaluate the efficacy of two different techniques for maxillary alveolar ridge expansion, the osteotome and screwexpander. Patients and methods: This study was carried out on 16 healthy male patients received 16 implants. Average age 40 years.
Ahmed Ghazy, Walid Ghanem
openaire   +1 more source

Contribution of higher meson resonances to the electromagnetic $\pi$-meson mass difference [PDF]

, 2001
Modifications of the DGMLY relation for calculation of electromagnetic $\pi$-meson mass difference based on the Chiral Symmetry Restoration phenomenon at high energies as well as the Operator Product Expansion of quark densities for vector ($\rho$) and ...
A. A. Andrianov, A. A. Andrianov, A. A. Andrianov, ALEPH Collab., C. A. Baker, D. E. Groom, D. Espriu, D. Gross, E. Witten, G. Ecker, G. Hooft 't, J. Bijnens, J. Bijnens, J. Bijnens, J. Donoghue, J. Gasser, J. Gasser, J. Gasser, L. J. Reinders, M. A. Shifman, M. K. Volkov, M. Knecht, M. Knecht, M. Knecht, O. A. Zaimidoroga, OPAL Collab., R. D. Peccei, R. Socolow, S. S. Afonin, S. Weinberg, T. Das, T. Minamikawa, V. A. Andrianov, W. A. Bardeen   +33 more
core   +2 more sources

A divided difference expansion of a divided difference

Journal of Approximation Theory, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Commutative Encryption and Reversible Watermarking Algorithm for Vector Maps Based on Virtual Coordinates

ISPRS International Journal of Geo-Information
The combination of encryption and digital watermarking technologies is an increasingly popular approach to achieve full lifecycle data protection. Recently, reversible data hiding in the encrypted domain (RDHED) has greatly aroused the interest of many ...
Qianyi Dai, Baiyan Wu, Fanshuo Liu, Zixuan Bu, Haodong Zhang   +4 more
doaj   +1 more source