Results 61 to 70 of about 75,188 (269)

Single‐ and triple‐band bandpass filters using novel perturbed isosceles right‐angled triangular SIW cavities

IET Microwaves, Antennas & Propagation, 2021
Herein, a rigorous derivation of an isosceles right‐angled triangular (IRT) metallic cavity is analysed. Then, the transverse field components in the IRT substrate‐integrated waveguide (SIW) cavity are derived, and the expression of the resonant ...
Junjie Zhang, Qing Liu, Dongfang Zhou, Dewei Zhang   +3 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

A High-Isolation Building Block Using Stable Current Nulls for 5G Smartphone Applications

IEEE Access, 2019
In this paper, a new design method to enhance the isolation of a two-antenna building block is introduced. Here, a two-antenna building block (Ant 1 and Ant 2) that is composed of a gap-coupled loop antenna (Ant 1) and a loop antenna (Ant 2) is ...
Aidi Ren, Ying Liu, Hong-Wei Yu, Yongtao Jia, Chow-Yen-Desmond Sim, Yunxue Xu   +5 more
doaj   +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

A Novel Dielectric Resonator Antenna Array With 2D Wide-Angle Beam-Scanning Capability for Millimeter-Wave Applications

IEEE Open Journal of Antennas and Propagation
A scalable and cost-effective phased array architecture based on dielectric resonator antenna (DRA) technology is presented for millimeter-wave applications.
Stanislav Ogurtsov, Thijs Brouwers, Tudor Popa, Javier Arrincon, A. Bart Smolders, Diego Caratelli   +5 more
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

A Dual-Band Dual-Polarized Antenna for Harvesting in Cellular and Digital Terrestrial Television Bands

IEEE Open Journal of Antennas and Propagation
The growing prevalence of IoT devices has heightened the focus on minimizing energy consumption in low-power electronic systems. Ambient radio frequency (RF) energy harvesting allows self-sustaining electronic devices to operate in IoT networks without ...
Khatereh Nadali, Neeraj Kumar Maurya, Patrick McEvoy, Max J. Ammann   +3 more
doaj   +1 more source

Novel Low-Cost Integrated Multiband Antenna Design Customized for Smartwatch Applications with SAR Evaluation

International Journal of Antennas and Propagation, 2020
This paper presents a novel low-cost integrated multiband antenna design customized for smartwatch applications and wearable devices. The design consists in using a broadband planar patch antenna with circular microstrip lines and a miniaturized feeding ...
Brahim Fady, Abdelwahed Tribak, Jaouad Terhzaz, Fatima Riouch   +3 more
doaj   +1 more source

Design of high roll‐off frequency selective surface based on single‐layer SIW cavity with fully canonical filtering responses

Electronics Letters, 2022
In this paper, a novel design of high roll‐off frequency selective surface (FSS) is proposed based on a single‐layer substrate integrated waveguide (SIW) cavity.
Xian Wang, Dongfang Zhou, Yue Wang, Qikun Liu, Na An   +4 more
doaj   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source