Results 81 to 90 of about 545,717 (377)

A filtering reconfigurable intelligent surface for interference-free wireless communications

Nature Communications
The powerful capability of reconfigurable intelligent surfaces (RISs) in tailoring electromagnetic waves and fields has put them under the spotlight in wireless communications.
Jing Cheng Liang, Lei Zhang, Zhangjie Luo, Rui Zhe Jiang, Zhang Wen Cheng, Si Ran Wang, Meng Ke Sun, Shi Jin, Qiang Cheng, Tie Jun Cui   +9 more
doaj   +1 more source

High-Order Modes Analysis of Complex Plasmonic Surface Using the Field-Network Joint Solution

IEEE Access, 2019
The plasmonic surface is made of metallic surface with deep sub-wavelength decorations, which are designed to mimic the surface plasmon polaritons at lower frequency. Recently, high-order modes in some special structures are analyzed. In order to analyze
Yinjie Cui, Hao Chi Zhang, Xiao Yang Zhou, Cheng Qian, Xiao-Wei Zhu   +4 more
doaj   +1 more source

Linearly and Circularly Polarized Emission in Sagittarius A*

, 2008
We perform general relativistic ray-tracing calculations of the transfer of polarized synchrotron radiation through the relativistic accretion flow in Sagittarius (Sgr) A*. Based on a two-temperature magneto-rotational-instability (MRI) induced accretion
Christopher L. Fryer, Hui Li, Kennett M., Lei Huang, Mike J. Cai, Shakura N. I., Siming Liu, Zhi-Qiang Shen   +7 more
core   +1 more source

Structural and compositional properties of brown dwarf disks: the case of 2MASS J04442713+2512164 [PDF]

, 2008
In order to improve our understanding of substellar formation, we have performed a compositional and structural study of a brown dwarf disk. We present the result of photometric, spectroscopic and imaging observations of 2MASS J04442713+2512164, a ...
A. Bayo, Alencar, Apai, Appenzeller, B. Lefort, Baraffe, Barrado y Navascués, Basri, Bockelée-Morvan, Bouwman, C. Pinte, Cabrit, Calvet, Chiang, Ciesla, Comerón, D. Barrado y Navascués, Devillard, Dorschner, Dullemond, E. L. Martín, E. Pantin, F. Marchis, F. Ménard, Fernández, Fernández, G. Basri, G. Duchêne, G. Duvert, Gail, Garcia Lopez, Guieu, H. Bouy, Harker, Harker, Hartmann, Houck, J. Olofsson, J.-C. Augereau, J.-L. Monin, Kaito, Keller, Keller, Kemper, Kessler-Silacci, Kessler-Silacci, Knapp, Lagage, Lay, Luhman, Luhman, Luhman, Martín, Meeus, Merín, Mohanty, Molster, Muzerolle, Muzerolle, Muzerolle, N. Huélamo, Natta, Nuth, Ochsenbein, Pantin, Pinte, Pinte, S. Bottinelli, S. Guieu, Sargent, Scholz, Tozzi, van Boekel, van Boekel, Vogt, Walker, Whelan, White   +77 more
core   +4 more sources

Combating the Distance Problem in the Millimeter Wave and Terahertz Frequency Bands [PDF]

IEEE Communications Magazine, 2018
In the millimeter-wave (30-300 GHz) and terahertz (0.1-10 THz) frequency bands, the high spreading loss and molecular absorption often limit the signal transmission distance and coverage range.
I. Akyildiz, Chong Han, Shuai Nie
semanticscholar   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Resolved images of the protoplanetary disk around HD 100546 with ALMA

, 2014
The disk around the Herbig Ae/Be star HD 100546 has been extensively studied and it is one of the systems for which there are observational indications of ongoing and/or recent planet formation.
Avenhaus, Henning, Meru, Farzana, Meyer, Michael R., Mulders, Gijs D., Panić, Olja, Pineda, Jaime E., Quanz, Sascha P.   +6 more
core   +1 more source

Limited Feedback Hybrid Precoding for Multi-User Millimeter Wave Systems [PDF]

IEEE Transactions on Wireless Communications, 2014
Antenna arrays will be an important ingredient in millimeter-wave (mmWave) cellular systems. A natural application of antenna arrays is simultaneous transmission to multiple users.
A. Alkhateeb, G. Leus, R. Heath
semanticscholar   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Interferometric Upper Limits on Millimeter Polarization of the Disks around DG Tau, GM Aur, and MWC 480

, 2013
Millimeter-wavelength polarization measurements offer a promising method for probing the geometry of magnetic fields in circumstellar disks. Single dish observations and theoretical work have hinted that magnetic field geometries might be predominantly ...
Hughes, A. M., Hull, C. L. H., Plambeck, R. L., Wilner, D. J.   +3 more
core   +1 more source