Results 71 to 80 of about 1,896,279 (338)

Terahertz Dynamic Beam Steering Based on Graphene Coding Metasurfaces

IEEE Photonics Journal, 2021
Coding metasurfaces incorporated with reconfigurable elements can dynamically control electromagnetic waves to realize reconfigurable multiple functionalities.
Jiashuai Xu, Wenwen Liu, Zhengyong Song
semanticscholar   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Reconfigurable phased microstrip antenna array with defected ground structure and defected microstrip structure for beam steering application [PDF]

, 2018
Beam steering is defined as the ability to electronically steer the beam maximum of an antenna electric field pattern to some predefined point in space. The performance of a phased antenna array for beam steering without moving the antennas is important ...
Subhi Ahmad, Khalid
core  

Non-Mechanical Beam Steering and Adaptive Beam Control Using Variable Focus Lenses for Free-Space Optical Communications

Journal of Lightwave Technology, 2021
Free-space optical communications (FSOCs) are gaining popularity as a promising solution to the capacity crunch of aerial and satellite backhaul networks for next-generation mobile communication systems.
V. Mai, Hoon Kim
semanticscholar   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Beam-Steerable Fabry–Pérot Cavity Antenna with Reconfigurable Liquid-Based PRS

IEEE Access
The design of a beam steering antenna with a reconfigurable liquid-based metamaterial as a Partially Reflective Surface (PRS) in a Fabry–Pérot cavity (FPC) configuration is presented in this letter.
Syed Tamoor Shah, Muhammad Umar Khan, Rifaqat Hussain, James R. Kelly, Akram Alomainy, Khaled A. Aljaloud   +5 more
doaj   +1 more source

Mobile THz communications using photonic assisted beam steering leaky-wave antennas.

Optics Express, 2021
THz communications is envisaged for wide bandwidth mobile communications eventually reaching data capacities exceeding 100 Gbit/s. The technology enabling compact chip-integrated transceivers with highly directive, steerable antennas is the key challenge
P. Lu, T. Haddad, J. Tebart, M. Steeg, Benedikt Sievert, J. Lackmann, A. Rennings, A. Stöhr   +7 more
semanticscholar   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Sub‐THz Antenna With Graphene Enabled Beam Steering for THz Communication

Engineering Reports
This work presents a sub‐THz planar antenna designed for THz communication and sensing, featuring advanced beam steering capabilities. The antenna uses a silicon dioxide (SiO2) substrate with a copper radiating zone incorporating V‐shaped slots ...
Sher Nawaz, Waleed Tariq Sethi, Latif Jan, Mohammad Haseeb Zafar   +3 more
doaj   +1 more source