Results 141 to 150 of about 203,143 (312)

Dielectric EBG Leaky-Wave Antenna: Design and Experimental Validation

IEEE Open Journal of Antennas and Propagation
This paper proposes a novel Electromagnetic Band-Gap (EBG) leaky-wave antenna (LWA) operating in the K-band with enhanced directivity at broadside. A rigorous method that combines the analysis of the band diagrams of Bloch waves propagating within two ...
Ludovica Tognolatti, Paolo Baccarelli, Cristina Ponti, Silvio Ceccuzzi, Vakhtang Jandieri, Giuseppe Schettini   +5 more
doaj   +1 more source

Coherently Radiating Periodic Structures to Reduce the Number of Phase Shifters in a 2-D Phased Array. [PDF]

Sensors (Basel), 2021
Juárez E, Panduro MA, Covarrubias DH, Reyna A.   +3 more
europepmc   +1 more source

Structural Periodic Vector Autoregressions

Journal of Econometrics
While seasonality inherent to raw macroeconomic data is commonly removed by seasonal adjustment techniques before it is used for structural inference, this may distort valuable information in the data. As an alternative method to commonly used structural vector autoregressions (SVARs) for seasonally adjusted data, we propose to model potential ...
Daniel Dzikowski, Carsten Jentsch
openaire   +2 more sources

INVESTIGATIONS OF MICROSTRIP PERIODIC STRUCTURES [PDF]

, 1990
Periodic structures are used as microwave filters because of their inherent passband-stopband characteristics. The structure exhibits alternative passbands and stopbands.
Ghaderi, Mohammad
core  

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Determinação do amortecimento de painel aeronáutico com material viscoelástico [PDF]

, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaA pesquisa apresentada nesta dissertação é voltada para problemas de determinação do amortecimento de estruturas ...
Bratti, Giovanni
core  

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

FEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose, Kotaro Ozaki, Ryohei Kuriyama, Yuka Ikemoto, Kazuhiro Mio, Yuji C. Sasaki, Tatsuya Arai, Sakae Tsuda, Yoichi Shinkai, Masahiro Kuramochi   +9 more
wiley   +1 more source

TEMPERATURE - ABNORMAL DIFFUSIVITY IN TILTED SPATIALLY PERIODIC POTENTIALS

East European Journal of Physics, 2017
The paper describes diffusion of particles in a tilted spatially periodic potential under the action of external forces in the case of a low friction. It is shown that in underdamped systems, a region of temperature-abnormal diffusivity (TAD) exists, in ...
I. G. Marchenko, I. I. Marchenko, V. I. Tkachenko   +2 more
doaj  

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

The periodic and dynamic structure of chromatin [PDF]

, 2016
The organisation of chromatin is non-random and shows a broad diversity across cell types, developmental stages, and cell cycle stages. During G0 and G1 phase of interphase, chromatin displays a bivalent status. The condensed chromatin (heterochromatin) at the nuclear periphery is mostly associated with low levels of gene expression, while the loosened
openaire   +1 more source