Results 91 to 100 of about 380,841 (317)

Compact waveguide-integrated metasurface twist with filtering and phase shifting capabilities for millimeter-wave guided-wave applications

iScience
Summary: Recent advancements in metasurfaces have enabled precise control of wave properties such as amplitude, phase, and polarization, which are critical for multifunctional devices in modern communications.
Amirmasood Bagheri, Zahra Rahimian Omam, Pei Xiao, Seyed Ehsan Hosseininejad, Mohsen Khalily   +4 more
doaj   +1 more source

Tối ưu hiệu suất năng lượng cho hệ thống Massive MIMO đường xuống

Tạp chí Khoa học và Công nghệ, 2023
Massive MIMO (mMIMO) được xem là công nghệ cốt lõi cho mạng 5G và là thành phần chính cho các thế hệ mạng tiếp theo (6G trở đi). Việc sử dụng mMIMO mang lại nhiều lợi ích đáng kể như tăng tốc độ truyền dữ liệu, tăng độ tin cậy, giảm thời gian trễ, tăng ...
Nguyễn Trung Hiếu, Lê Thị Phương Mai, Nguyễn Văn Hiếu   +2 more
doaj  

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

Modulating Interfacial Potential Gradients in Metal−Carbon Catalysts via Phase‐Engineering for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
It is elucidated that phase engineering of cobalt modulates the interfacial potential gradients of cobalt–carbon electrocatalysts, enhancing the intrinsic electrocatalytic performance. Modulating the dominant crystalline phase of cobalt from a hexagonal close‐packed to a face‐centered cubic enriches the electron density of carbon shells, thereby ...
Ji‐Oh Kim, Hengquan Guo, Seonghee Kim, Jae Bin Park, Seongwook Chae, Taekyun Kwon, Seungjo Hong, Byeong Jin Kim, Guadalupe Arturo De la Garza Gonzalez, Minjoon Park, Jae Ho Kim, Oi Lun Li, Seung Geol Lee, Jin Hong Lee   +13 more
wiley   +1 more source

6G Networks and the AI Revolution—Exploring Technologies, Applications, and Emerging Challenges

Italian National Conference on Sensors
In the rapidly evolving landscape of wireless communication, each successive generation of networks has achieved significant technological leaps, profoundly transforming the way we connect and interact.
Robin Chataut, Mary Nankya, R. Akl
semanticscholar   +1 more source

High-Throughput Accelerator for Exact-MMSE Soft-Output Detection in Open RAN Systems

IEEE Access
Open Radio Access Networks (Open RANs), realized fully in software, require excessive computing resources to support time-sensitive signal-processing algorithms in the physical layer.
Thomas James Thomas, Konstantinos Nikitopoulos   +1 more
doaj   +1 more source

Advancements in Open RAN and the Decentralization of Telecom Networks [PDF]

Iranian Journal of Information Processing & Management
Background: In the article, the author explores the possibilities of Open Radio Access Network (Open RAN) as a revolutionary idea to democratize telecom networks.Objective: The study aims to compare the efficiency, cost, flexibility, scalability, and ...
Yaser Issam Hamodi Aljanabi, Salah Yehia Hussain, Papieva Tolkun Mamataevna, Vian S. Al-Doori, Jassim Mohamed Brieg   +4 more
doaj   +1 more source

Laser‐Welded Cellulose‐Carbon Nanotube Nanocomposites as a 3D Scaffold of Si Anodes for High‐Performance Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu, Younghoon Jung, Hojin Son, Min‐Young Kim, Jinsub Lim, Changhun Yun   +5 more
wiley   +1 more source

A Survey for Intrusion Detection Systems in Open RAN

IEEE Access
Open Radio Access Network (RAN) introduces a groundbreaking industry standard for Radio Access Networks, fostering vendor interoperability and network flexibility through open interfaces while leveraging network softwarization, Artificial, and Machine ...
Emmanuel N. Amachaghi, Mohammad Shojafar, Chuan Heng Foh, Klaus Moessner   +3 more
doaj   +1 more source

Injectable Dual‐Network Hydrogel System for Osteochondral Repair Combining Immunomodulation, Mechanical Adaptability, and Enhanced Tissue Integration

Advanced Functional Materials, EarlyView.
A UV‐triggered injectable dual‐network hydrogel is reported as the first application of bletilla striata polysaccharide (BSP) in osteochondral repair. By integrating methacrylamide‐modified BSP and nitrobenzaldehyde‐functionalized hyaluronic acid, the system achieves immunomodulation, mechanical reinforcement, and dynamic tissue adhesion, thereby ...
Jiaming Cui, Feifei Zhou, Yuan Luo, Tao Ouyang, Huiwu Zhang, Songmiao Cheng, Qiang Li, Xu Jiang, Yingying Yu, Yicheng Wang, Hong Ming   +10 more
wiley   +1 more source