Results 51 to 60 of about 359,797 (235)

Unusual microwave response and bulk conductivity of very thin fese0.3te0.7 films as a function of temperature

, 2014
Results of X-band microwave surface impedance measurements of FeSe1-xTex very thin film are reported. The effective surface resistance shows appearance of peak at T less and near Tc when plotted as function of temperature.
A. A. Barannik, A. Porch, Alireza P. L., Barannik A., Barannik A. A., Cardwell D. A., Han Y., M. S. Kharchenko, N. T. Cherpak, Sheng Luo, Shibauchi T., Yun Wu, Yusheng He   +12 more
core   +1 more source

Breathers in the weakly coupled topological discrete sine-Gordon system [PDF]

, 1998
Existence of breather (spatially localized, time periodic, oscillatory) solutions of the topological discrete sine-Gordon (TDSG) system, in the regime of weak coupling, is proved.
Agarwal R P, Allgower E L, Farkas M, Hill G W, J M Speight, Lawden D F, M Haskins, MacKay R S, MacKay R S, Magnus W, Magnus W, Magnus W, Marín J L, Press W H, Sepulchre J A, Speight J M   +15 more
core   +5 more sources

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Two-Dimensional Direction-of-Arrival Estimation With a SODA-Based 3D Array

IEEE Access
In this work, we evaluate the efficiency of different one-dimensional and two-dimensional multiple signal classification (MUSIC) scenarios in direction-finding (DF) for the azimuth and the elevation angles through the Monte Carlo simulations. In addition,
Sarah Poormohammad, Seyed Sadra Kashef, Hamid Arezumand   +2 more
doaj   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Arrival direction finding for narrow-band auroral hiss at Syowa Station

Antarctic Record, 1982
From the direction finding (DF) observations based on the measurement of wave arrival time differences among three spaced points around Syowa Station (geomagnetic lat. -70.0°), the arrival direction of narrow-band auroral hiss was examined.
Masanori Nishino, Yoshihito Tanaka, Takeo Hirasawa   +2 more
doaj   +1 more source

Neighbors of knots in the Gordian graph

, 2016
We show that every knot is one crossing change away from a knot of arbitrarily high bridge number and arbitrarily high bridge distance.Comment: Accepted by American Mathematical Monthly.
Blair, Ryan, Campisi, Marion, Johnson, Jesse, Taylor, Scott A., Tomova, Maggy   +4 more
core   +1 more source

Clusters and Superclusters in the Las Campanas Redshift Survey [PDF]

, 2003
Two-dimensional high-resolution density field of galaxies of the Las Campanas Redshift Survey (LCRS) with a smoothing length 0.8 Mpc/h is used to extract clusters and groups of galaxies, and a low-resolution field with a smoothing length 10 Mpc/h to find
Abell, Abell, Bahcall, Basilakos, D. L. Tucker, Davis, E. Saar, E. Tago, Einasto, Einasto, Einasto, G. Hütsi, Gott, Heinämäki, Hoyle, J. Einasto, Lin, Lindner, M. Einasto, Mueller, Müller, Oort, P. Heinämäki, S. S. Allam, Saunders, Schechter, Shectman, Tucker, V. Müller, Yahil, Zeldovich   +30 more
core   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source

2D DOA Estimation of UCA Correlative Interferometer Based on One Dimensional Sorting Lookup Table-Two Dimensional Linear Interpolation Algorithm [PDF]

Radioengineering, 2017
In order to improve the direction-finding efficiency of the correlative interferometer and reduce the size of the lookup table, this paper proposes the one dimensional sorting lookup table-two dimensional linear interpolation (1DSLUT-2DLI) algorithm ...
K. B. Cui, W. W. Wu, J. J. Huang, X. Chen, N. C. Yuan   +4 more
doaj