Results 81 to 90 of about 8,908 (189)
Advanced Healthcare Materials, Volume 15, Issue 6, 9 February 2026.This work presents a novel, dynamically perfused, configurable microfluidic system for epidermis‐only (E and full‐thickness skin (FT SoC) growth, emulating human skin structure and barrier function. Upon TiO2 nanoparticle exposure, the system reveals compromised barrier integrity, reduced metabolic activity, increased permeability, and chemokine‐driven
Samantha Costa +7 more
wiley +1 more source
Backscatter-NOMA: A Symbiotic System of Cellular and Internet-of-Things Networks
IEEE Access, 2019 Non-orthogonal multiple access (NOMA) is envisioned as a key technology to enhance the spectrum efficiency for 5G cellular networks. Meanwhile, ambient backscatter communication is a promising solution to the Internet of Things (IoT), due to its high ...
Qianqian Zhang +3 more
doaj +1 more source
Ambient Light Backscatter Communication for IoT Applications
Journal of electromagnetic engineering and science, 2016 In this paper, we present an ambient light backscatter communication design that enables Internet of Things (IoT) devices to communicate through the backscattering ambient light emitted from lighting infrastructure or sunlight. The device can selectively modulate ambient light by switching a liquid crystal display (LCD) shutter located on its surface ...
Jisu Yun, Byung-Jun Jang
openaire +2 more sources
Research progress and evolution prospect of passive internet of things communication
物联网学报, 2023 Passive internet of things (IoT) is the fundamentally enabling technology of promoting digital transformation and upgrading of industries.In recent years, passive IoT communication technology such as radio frequency identification has been widely used in
Yuan LI +6 more
doaj +2 more sources
A 1T2R High-Sensitivity and Dual-Channel Transceiver for Backscatter Communication Systems
IEEE AccessOwing to the rapid development of the ambient Internet of Things (IoT) industry, Backscatter Communication Systems (BCS) require higher receiver sensitivity for large-scale IoT scenarios than traditional Radio Frequency Identification (RFID) systems ...
Sijia Lai +5 more
doaj +1 more source
Pattern-Based Decoding for Wi-Fi Backscatter Communication of Passive Sensors
Sensors, 2019 Ambient backscatter communication enables passive sensors to convey sensing data on ambient RF signals in the air at ultralow power consumption. To extract data bits from such signals, threshold-based decoding has generally been considered, but suffers ...
Hwanwoong Hwang +3 more
doaj +1 more source
Trends in aerosol abundances and distributions [PDF]
The properties of aerosols that reside in the upper atmosphere are described. Special emphasis is given to the influence these aerosols have on ozone observation systems, mainly through radiative effects, and on ambient ozone concentrations, mainly ...
Clancy, R. T. +9 more
core +1 more source
Key technologies and challenges of 6G
Dianzi Jishu Yingyong6G and future communication system networks will meet the requirements of a world fully connected, and revolutionary technology solutions are expected to drive the rapid growth of smart devices and service applications.
Lu Xujun, Zheng Jianfei, Xia Zhu
doaj +1 more source
Extinction and backscatter measurements of Antarctic PSC's, 1987: Implications for particle and vapor removal [PDF]
The temperature dependence is examined of optical properties measured in the Antarctic during 1987 at the 70 mb level (near 18 km), a level chosen to correlate the results with in situ measurements made from the NASA-Ames ER-2 aircraft during the 1987 ...
Browell, Edward V. +8 more
core +1 more source
A theoretical/experimental program to develop active optical pollution sensors: Quantitative remote Raman lidar measurements of pollutants from stationary sources [PDF]
Typical pollutant gas concentrations at the stack exits of stationary sources can be estimated to be about 500 ppm under the present emission standards.
Brumfield, M. L. +2 more
core +1 more source