Results 121 to 130 of about 47,507 (304)

Direction Finding for Unmanned Aerial Systems Using Rhombic Antennas and Amplitude Comparison Monopulse

, 2018
The purpose of this thesis is to design an antenna for a UAS (Unmanned Aerial System) comprised of an aircraft and a two channel transceiver/spectrum recording device for a DF (Direction Finding) application with an error of 6.12 degrees or less. The UAS
Kuiper, Ryan
core   +1 more source

Astrocytic Phenotypic Switching in Posterior Piriform Cortex Orchestrates Bone Cancer Pain–Depression Comorbidity via Purinergic–Noradrenergic Signaling

Advanced Science, EarlyView.
Bone cancer pain and depression share a common origin: astrocytic A2‐to‐A1 transition in the posterior piriform cortex. This phenotypic shift disrupts the ATP–adenosine–A2AR–norepinephrine axis, simultaneously driving nociceptive and affective dysfunction.
Jiang‐Ping Liu, Jun‐Han Zhang, Zhi‐Xuan Tan, Wei‐Bing Yan, Ya‐Ru Yuan, Yao Liu, Bing‐Di Wei, Meng‐Qi Ding, Zhuo‐Min Fu, Ying Liu, An‐Qi Wang, Lin Ma, Yong‐Hong Li, Er‐Qing Chai, Chao‐Jun Wei   +14 more
wiley   +1 more source

Rounded-edge bow-tie antenna for wideband mobile direction finding system

, 2015
A novel relatively small wideband antenna is introduced for the mobile application of direction finding (DF) systems covering the frequency range from 150 MHz to 3 GHz.
Ozturk, Mehmet E., Kebeli, Murat, Korkmaz, Erdal   +2 more
core   +1 more source

Temporal Interference Stimulation Enhances Neural Regeneration

Advanced Science, EarlyView.
Temporal interference (TI) stimulation is proposed as a non‐invasive approach to enhance neural regeneration in the deep brain. Theta‐band TI modulation selectively promotes neural progenitor cell differentiation in vitro and augments hippocampal neurogenesis in amouse model of Alzheimer's disease‐like amyloidosis.
Sofia Peressotti, Maria Garcia Garrido, Patrycja Dzialecka, Rachel Man Hoi Law, Roberto Portillo‐Lara, Bethany Geary, Elena Faillace, Shirine Merlo‐Nikpay Aslie, Marcelina Wojewska, Maria Otero‐Jimenez, Martina Genta, Luqiao Tan, Karen Duff, Javier Alegre‐Abarrategui, Rylie Green, Nir Grossmann   +15 more
wiley   +1 more source

Walsh-OFDM Breakdown Analysis Breaking the SNR Floor: An Analytical Study of Walsh-Coded OFDM Performance and Breakdown Mechanisms in Low-SNR Rician Fading

IEEE Open Journal of the Communications Society
This paper analyses the performance limits and breakdown mechanisms of a Walsh-coded OFDM Integrated Sensing and Communication (ISAC) waveform operating in severe Rician fading. The waveform, previously introduced as a robust low-rate design for wearable
Ahmad Aldelemy, Ali Al-Dulaimi, Shaik Basheeruddin Shah, Nazar T. Ali, Walid A. Al-Hussaibi, Raed A. Abd-Alhameed   +5 more
doaj   +1 more source

Mobile high-resolution direction finding of multipath radio waves in Azimuth and Elevation

, 2005
This paper presents a novel direction-finding (DF) system based on a 3-axis crossed antenna array in combination with threedimensional Unitary ESPRIT. The application and design considerations are discussed and the implemented antenna array is shown. The
Kwakkernaat, MRJAE Maurice, Herben, MHAJ Matti, Jong, YLC Yvo de, Kwakkernaat, M.R.J.A.E., Herben, M.H.A.J., Jong, de, Y.L.C.   +5 more
core  

Optimum symmetrical number system phase sampled direction finding antenna architectures [PDF]

, 1998
A new interferometer direction finding array architecture based on the optimum symmetrical number system (OSNS) is presented. OSNS arrays are capable of unambiguous high-resolution direction finding with as few as three elements, with multiple baseline ...
Hatziathanasiou, Thomas N.
core  

Bidirectional Photoswitching of a Tailored Azobenzene with Red and Far‐Red Light Involving Triplet Sensitization in an Aqueous System

Advanced Science, EarlyView.
The action spectrum of a tailored azobenzene is shifted toward bio‐optical window through the chemical modification of its singlet and triplet energy levels. Consequently, the bidirectional photo‐switching of azobenzene in physiological conditions is achieved when excited by red and far‐red light, which offers greater tissue penetration.
Mila Miroshnichenko, Helen Hölzel, Edvinas Orentas, Karolis Kazlauskas, Pedro Ferreira, Fabienne Dumoulin, Carles Alcaide, Miquel Solà, Roger Bresolí‐Obach, Santi Nonell, Pankaj Bharmoria, Kasper Moth‐Poulsen   +11 more
wiley   +1 more source

A Novel Acoustic Source Localization Technique for Edge AI Applications: A Lightweight Framework and Implementation for IoT and Smart Sensing Devices

Electrica
This paper presents a novel and computationally efficient three-point signal estimation method for acoustic direction finding, designed specifically for low-cost embedded platforms.
Serhan Yarkan
doaj   +1 more source

Cotton Recruits Soil‐Derived Delftia tsuruhatensis to Suppress Aphid Detoxification Via Salicylic Acid‐Mediated Defense

Advanced Science, EarlyView.
This study systematically reveals a complex interactive network involving plants, microbes, and insects, elucidating the ecological and molecular mechanisms by which cotton enhances its resistance to aphids through the active recruitment of the beneficial soil bacterium Delftia tsuruhatensis.
Hui Xue, Fengchao Diao, Qiqing Yu, Xiangzhen Zhu, Tingfang Zhong, Li Wang, Kaixin Zhang, Dongyang Li, Jichao Ji, Junyu Luo, Jinjie Cui, Xueke Gao   +11 more
wiley   +1 more source