Results 91 to 100 of about 352,147 (317)

Photoluminescent UV Light Modulation via Anisometric Carbon Nanodots for UV–Visible Shutter and UV Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Anisometric carbon nanodots are synthesized directly from a liquid crystal precursor and embedded into polymer network liquid crystals to create soft, multifunctional photonic films. These hybrid devices exhibit polarized photoluminescence, broad UV absorption, and fast, electrically tunable light modulation.
Mangesh D. Patekari   +4 more
wiley   +1 more source

Time-modulated 1-bit amplitude-coded metasurface for space-frequency beam shaping

open access: yesScientific Reports
Two-dimensional (2D) space-encoded metamaterials enable the progressive development of a multitude of functionalities for controlling electromagnetic (EM) waves. Recently, time-modulated phase-coded metasurfaces have been introduced into 2D metamaterials,
Seyed Ehsan Hosseininejad   +2 more
doaj   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To   +5 more
wiley   +1 more source

Why 6G?

open access: yes, 2019
Comment: 5 Pages, 1 Figure, Research Article, Provides 6G ...
Routray, Sudhir K., Mohanty, Sasmita
openaire   +3 more sources

A 3D Biofabricated Disease Model Mimicking the Brain Extracellular Matrix Suitable to Characterize Intrinsic Neuronal Network Alterations in the Presence of a Breast Tumor Disseminated to the Brain

open access: yesAdvanced Functional Materials, EarlyView.
A 3D disease model is developed using customized hyaluronic‐acid‐based hydrogels supplemented with extracellular matrix (ECM) proteins resembling brain ECM properties. Neurons, astrocytes, and tumor cells are used to mimic the native brain surrounding.
Esra Türker   +16 more
wiley   +1 more source

Analysis of methods for reducing the signal PAPR under the influence of the Doppler effect in hybrid communication networks

open access: yesФизика волновых процессов и радиотехнические системы
Background. For further development of communication networks, it is planned to use hybrid satellite networks for traffic transmission. However, satellite communication channels have features such as distortion caused by the Doppler effect and increased ...
Roman O. Salnikov   +6 more
doaj   +1 more source

THz Communications for 6G

open access: gold, 2023
Thomas Kuerner
openalex   +1 more source

A Vascular Microphysiological Model of Lung Fibrosis Reveals That Myofibroblasts and IPF Patient‐Derived Fibroblasts Impair Angiogenesis and Vasculogenesis

open access: yesAdvanced Functional Materials, EarlyView.
A microphysiological lung fibrosis model recapitulates myofibroblast–vascular interactions. Induced myofibroblasts and patient‐derived IPF fibroblasts impair angiogenesis and increase vascular permeability via TGF‐β1–driven signaling. Pharmacological interventions with SB 431542 and VEGF supplementation restore vascular morphology and barrier function.
Elena Cambria   +7 more
wiley   +1 more source

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

open access: yesTạp 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   +2 more
doaj  

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