Results 41 to 50 of about 14,405,971 (388)

A Design Approach of Optical Phased Array with Low Side Lobe Level and Wide Angle Steering Range

Photonics, 2021
In this paper, a new design approach of optical phased array (OPA) with low side lobe level (SLL) and wide angle steering range is proposed. This approach consists of two steps.
Xinyu He, Tao Dong, Jingwen He, Yue Xu
doaj   +1 more source

Groundstate for the Schrödinger-Poisson-Slater equation involving the Coulomb-Sobolev critical exponent

Advances in Nonlinear Analysis, 2023
In this article, we study the existence of ground state solutions for the Schrödinger-Poisson-Slater type equation with the Coulomb-Sobolev critical growth: −Δu+14π∣x∣∗∣u∣2u=∣u∣u+μ∣u∣p−2u,inR3,-\Delta u+\left(\frac{1}{4\pi | x| }\ast | u{| }^{2}\right)u=|
Lei Chunyu, Lei Jun, Suo Hongmin
doaj   +1 more source

Analysis of the state of mechanized sowing of rice in seedlings [PDF]

BIO Web of Conferences
This article presents a brief analysis of the state of rice cultivation, the main advantages and disadvantages of seedling rice planting, analyzes the prospects for rice cultivation and mechanization of this process in Uzbekistan.
Alimova Feruza, Saidova Mukhayyokhon, Boboniyozov Ergash, Mirzayev Beknur   +3 more
doaj   +1 more source

Singular Mean-Field States: A Brief Review of Recent Results

Condensed Matter, 2020
This article provides a focused review of recent findings which demonstrate, in some cases quite counter-intuitively, the existence of bound states with a singularity of the density pattern at the center; the states are physically meaningful because ...
Elad Shamriz, Zhaopin Chen, Boris A. Malomed, Hidetsugu Sakaguchi   +3 more
doaj   +1 more source

Gapless ground state in the archetypal quantum kagome antiferromagnet ZnCu3(OH)6Cl2 [PDF]

Nature Physics, 2019
Spin liquids are exotic phases of quantum matter that challenge Landau’s paradigm of symmetry-breaking phase transitions. Despite strong exchange interactions, spins do not order or freeze down to zero temperature.
P. Khuntia, P. Khuntia, M. Velázquez, M. Velázquez, Q. Barthélemy, F. Bert, E. Kermarrec, A. Legros, B. Bernu, L. Messio, L. Messio, A. Zorko, P. Mendels   +12 more
semanticscholar   +1 more source

Optimization of the parameters of the pneumatic feed mechanism for precise clustered sowing [PDF]

BIO Web of Conferences
The article is devoted to the description of one of the ways to improve the mechanization of sowing, namely, precise sowing in a clustered way. It is analyzed that precise sowing provides a given placement of plants over the area and makes it possible ...
Alimova Feruza, Saidova Mukhayyokhon, Primqulov Bekzod, Erdem Tunahan   +3 more
doaj   +1 more source

On the ground state of quantum gravity [PDF]

Physics Letters B, 1998
10 pages, LaTex, the version to appear in Physics Letters ...
CACCIATORI, SERGIO LUIGI, Preparata G., Rovelli S., Spagnolatti I., Xue S. S.   +4 more
openaire   +5 more sources

Ground State and Hidden Symmetry of Magic-Angle Graphene at Even Integer Filling [PDF]

, 2019
In magic angle twisted bilayer graphene, electron-electron interactions play a central role resulting in correlated insulating states at certain integer fillings.
Nick Bultinck, E. Khalaf, Shang Liu, S. Chatterjee, A. Vishwanath, M. Zaletel   +5 more
semanticscholar   +1 more source

Through-Floor Vital Sign Searching for Trapped Person Using Wireless-Netted UWB Radars

Applied Sciences, 2021
In personnel rescue applications, considerable attention has been paid to the positioning method of living persons. Especially, the effective vital sign searching is urgently required.
Zhenghuan Xia, Shiyou Wu, Xin Liu, Huifeng Shi, Shichao Jin, Tao Peng   +5 more
doaj   +1 more source

Moving Toward the Ground State [PDF]

Cell Stem Cell, 2015
Transferring mouse ESCs to a media supplemented with Mek and Gsk3β inhibitors (2i) provokes marked transcriptional and epigenetic changes, embodying a shift toward ground-state pluripotency. In this issue of Cell Stem Cell, Kolodziejczyk et al. (2015) examine population structures of ESCs while Galonska et al.
Ishan Kumar, Natalia Ivanova
openaire   +3 more sources