Results 51 to 60 of about 944,511 (369)

Magnetization switching by microwaves initially rotating in opposite direction to precession [PDF]

Applied Physics Express 8, 123002 (2015), 2015
A common understanding of magnetization switching in microwave-assisted magnetization reversal is that the rotation direction of the microwaves should be the same with the precession direction of the magnetization. In this letter however, we show that microwaves initially rotating opposite to the magnetization precession destabilize the magnetization ...
arxiv   +1 more source

Magnetization switching by microwaves synchronized in the vicinity of precession frequency [PDF]

Applied Physics Express 8, 083004 (2015), 2015
We propose a theoretical framework of a magnetization switching induced solely by a microwave. The microwave frequency is always close to but slightly different from the oscillation frequency of the magnetization. By efficiently absorbing energy from the microwave, the magnetization climbs up the energy landscape to synchronize the precession with the ...
arxiv   +1 more source

SNR‐dependent drone classification using convolutional neural networks

IET Radar, Sonar & Navigation, 2022
Radar sensing offers a method of achieving 24‐h all‐weather drone surveillance, but in order to be maximally effective, systems need to be able to discriminate between birds and drones.
Holly Dale, Chris Baker, Michail Antoniou, Mohammed Jahangir, George Atkinson, Stephen Harman   +5 more
doaj   +1 more source

Wide Band Polarization Detector for Sub–6 GHz 5G Applications

IEEE Access, 2022
This paper presents the analysis and the design of a polarization detector for sub–6 GHz 5G applications. The proposed design operates in the frequency range from 2 to 4 GHz to cover the 5G NR frequency bands n40/n41/n78. The proposed polarization
Eman M. Eldesouki, Shimaa A. M. Soliman, Sherine. I. Abd El-Rahman, Ahmed M. Attiya   +3 more
doaj   +1 more source

Hybrid Fishnet Metamaterial Based on Liquid Crystal and P-I-N Diodes for Reconfigurable Transmitarrays at $10 \,\mathrm{GHz}$

IEEE Journal of Microwaves
This article presents a reconfigurable unit cell for transmitarrays at $10 \,\mathrm{GHz}$ based on the fishnet metamaterial structure. The proposed design achieves a phase shift of up to $180 \mathrm{^{\circ }}$ between different states and additional ...
Adrian Diepolder, Lukas Schmidt, Susanne Brandl, Philipp Hinz, Christian Waldschmidt, Christian Damm   +5 more
doaj   +1 more source

The PTTG1/VASP axis promotes oral squamous cell carcinoma metastasis by modulating focal adhesion and actin filaments

Molecular Oncology, EarlyView.
VASP was found to be overexpressed in metastatic oral squamous cell carcinoma (OSCC) tissues. Notably, PTTG1‐ and VASP‐deficient OSCC cells demonstrated suppressed metastatic properties by disrupting the interaction between the cytoskeleton and focal adhesion (FAs) in the filopodia region.
Suyeon Park, Sang Shin Lee, Shihyun Kim, Yeonjun Lee, Gyeonwon Park, Jung Oh Kim, Jongho Choi   +6 more
wiley   +1 more source

A Ku Wideband Circularly Polarized Microstrip Antenna Array with Low Profile Crossed-Dipole Element

International Journal of Antennas and Propagation, 2023
This paper presents a novel Ku wideband circularly polarized (CP) antenna array composed of crossed-dipole element (CDE) and fed through sequential rotation (SR) feeding technique.
Haipeng Liu, Yunhua Zhang, Xiaowen Zhao
doaj   +1 more source

Exploration of heterogeneity and recurrence signatures in hepatocellular carcinoma

Molecular Oncology, EarlyView.
This study leveraged public datasets and integrative bioinformatic analysis to dissect malignant cell heterogeneity between relapsed and primary HCC, focusing on intercellular communication, differentiation status, metabolic activity, and transcriptomic profiles.
Wen‐Jing Wu, Jianchao Wang, Fuqing Chen, Xuefeng Wang, Bin Lan, Ruyi Fu, Hong Wen, Fangfang Chen, Wei Hong, Tian‐Yu Tang, Ying He, Gang Chen, Jianyin Zhou, Hai‐Long Piao, Di Chen, Shu‐Yong Lin   +15 more
wiley   +1 more source

A non‐fluorescent immunohistochemistry method for measuring autophagy flux using MAP1LC3/LC3 and SQSTM1 as core markers

FEBS Open Bio, EarlyView.
We introduce an immunohistochemistry method to measure autophagy flux, highlighting the active degradation and recycling of cellular waste. This cost‐effective approach uses tissue samples to track key markers like LC3 and SQSTM1, revealing how cells maintain health or respond to diseases such as cancer. It bridges the gap between research and clinical
Shahla Shojaei, Amir Barzegar Behrooz, Marco Cordani, Mahmoud Aghaei, Negar Azarpira, Daniel J. Klionsky, Saeid Ghavami   +6 more
wiley   +1 more source

Reducing multiphoton ionization in a linearly polarized microwave field by local control [PDF]

Phys. Rev. A 74, 053408 (2006), 2006
We present a control procedure to reduce the stochastic ionization of hydrogen atom in a strong microwave field by adding to the original Hamiltonian a comparatively small control term which might consist of an additional set of microwave fields. This modification restores select invariant tori in the dynamics and prevents ionization.
arxiv   +1 more source