Results 91 to 100 of about 5,705,928 (279)

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Secure Wireless Communications via Frequency Diverse Arrays

IEEE Signal Processing Letters
A novel frequency diverse array (FDA)-assisted secure transmission framework is proposed, which leverages additional frequency offsets to enhance physical layer security. Specifically, an FDA-assisted wiretap channel is considered, where the transmit beamforming and frequency offsets at each antenna are jointly optimized.
Zhenqiao Cheng, Chongjun Ouyang, Xingqi Zhang   +2 more
openaire   +3 more sources

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Research on beam control of density taper array sin-FDA based on subarray structure [PDF]

Zhihui kongzhi yu fangzhen
Frequency Diverse Array (FDA) is a brand-new electronically scanned radar system. The time-range-angle three-dimensional correlation characteristics of its beampattern have broad application prospects in the fields of electronic countermeasures and ...
ZHANG Jing, CHEN Chushu, WANG Bo
doaj   +1 more source

Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly

Advanced Functional Materials, EarlyView.
Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim, Hyeseoung Lim, Ji Min Lee, Heeyeon Kang, Yongkwon Song, Woojae Chang, So‐Jin Park, Jin Yoo, Atsushi Hozumi, Jinhan Cho, Jongkuk Ko, Sanghyuk Wooh   +11 more
wiley   +1 more source

Harmonic-based Direction Finding via Time Modulated Frequency Diverse Array

This work proposes a Time Modulated Frequency Diverse Array (TM-FDA) architecture, innovatively configured for direction-finding purposes. The system is built by combining the standard frequency diverse array philosophy with a specific time modulation ...
Tiberi, Tommaso, Costanzo, Alessandra, Bastia, Lorenzo, Masotti, Diego   +3 more
core   +1 more source

Beamforming Techniques for the Frequency Diverse Array

, 2020
A Master of Science thesis in Electrical Engineering by Yazan Youssef entitled, “Beamforming Techniques for The Frequency Diverse Array”, submitted in May 2020. Thesis advisors are Dr. Hasan Mir and Dr. Lutfi Albasha.
Youssef, Yazan
core  

Frequency Diverse Array Radar: Signal Characterization and Measurement Accuracy [PDF]

, 2010
Radar systems provide an important remote sensing capability, and are crucial to the layered sensing vision; a concept of operation that aims to apply the right number of the right types of sensors, in the right places, at the right times for superior ...
Brady, Steven H.
core   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

Advanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal, Younan Ma, Asad Khanmohammed, Dipen Parande, Hanming Zhang, Saket Dolare, Juliet Chen, Apiwat Wangweerawong, Saswata Karmakar, Hongfeng Deng, Frank Koppenhagen, Shraddha Sharma, Eric Reyes, Sherry He, Lianne Boeglin, Caroline Woo, Azadeh Paksa, Ayed Allawzi, Anusha Dias, Gregory Troiano, Shrirang Karve, Frank DeRosa   +21 more
wiley   +1 more source

Movable Frequency Diverse Array for Wireless Communication Security

IEEE Transactions on Communications
Frequency diverse array (FDA) is a promising antenna technology to achieve physical layer security by varying the frequency of each antenna at the transmitter. However, when the channels of the legitimate user and eavesdropper are highly correlated, FDA is limited by the frequency constraint and cannot provide satisfactory security performance. In this
Zihao Cheng 0001, Jiangbo Si, Zan Li 0001, Pengpeng Liu, Yangchao Huang, Naofal Al-Dhahir   +5 more
openaire   +3 more sources