Results 41 to 50 of about 3,775 (236)

Discussion on the common sense of the Internet of things

物联网学报, 2020
The development of Internet of things (IoT) in China is in the second decade.First of all,the outcome of the IoT was reviewed.The industry formation and system structure of IoT were introduced.Then,the development process,trends and key points of the ...
Yu SUN
doaj   +2 more sources

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

New Multiple Access Technologies for Satellite Internet of Things System

天地一体化信息网络, 2023
For satellite internet of things (IoT) scenarios with high propagation delay and the need to serve a larger number of users, firstly the shortcomings of IoT NTN in terms of technical solutions were analyzed, and then a new type of multi access solution ...
Wei BAI, Yujie ZHANG, Shaoli KANG, Deshan MIAO, Shaohui SUN, Shanzhi CHEN   +5 more
doaj   +2 more sources

A Very‐High Frequency Solution‐Processed Organic Field‐Effect Transistor With Improved Voltage‐Normalized Frequency of Transition

Advanced Science, EarlyView.
Increasing the frequency at which organic electronics operate while limiting the operation voltage is key to enabling future sustainable wireless applications. This work shows p‐type organic field‐effect transistors based on a molecularly doped, small molecule/polymer blend (C8‐BTBT:C16IDT‐BT), fabricated via direct‐writing and solution‐processing ...
Tommaso Losi, Kyle van Oosterhout, Martino Cambiaggio, Martin Heeney, Qiao He, Hans Kleemann, Alessandro Luzio, Eugenio Cantatore, Mario Caironi   +8 more
wiley   +1 more source

High‐Performance Piezoresistive Sensors via Pd/Sn‐Free Graphene‐Catalyzed Metallization of Thermally Repairable Microfiber Scaffolds

Advanced Science, EarlyView.
The multilayer fiber‐based PGC sensor, fabricated via graphene‐mediated electroless copper deposition, demonstrates high sensitivity, mechanical durability, and fast response speed. Additionally, it features low‐temperature thermal assisted recovery and thermal resistance, providing a promising platform for wearable electronic devices and IoT ...
ByungJun Kim, Su Bin Choi, Yeonwook Jeong, Jeong‐Won Yoon, Seung‐Boo Jung, Jong‐Woong Kim   +5 more
wiley   +1 more source

Functional MXene Inks for Printed Electronics: Chemistry, Rheology, and Devices

Advanced Science, EarlyView.
Functional MXene inks are emerging as building blocks for MXetronics, connecting MXene synthesis, surface functionalization, ink formulation, and advanced printing with device‐level applications. This review maps how composition, stability, rheology, and processability govern printed structures and enable high‐performance sensors, energy‐storage ...
Shahzaib Ali, Faisal Shahzad, Hamza Hussain, Muhammad Abbas, Dae‐Hyun Cho, Doyoung Byun, Hassan A. Arafat   +6 more
wiley   +1 more source

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

Advanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin, Shuo Sun, Jiahao Zhang, Jianuo Hu, Yubin Qiao, Liang Chen, Jin Li   +6 more
wiley   +1 more source

Study of Data Transfer in a Heterogeneous LoRa-Satellite Network for the Internet of Remote Things

Sensors, 2019
In the absence of traditional communication infrastructures, the choice of available technologies for building data collection and control systems in remote areas is very limited.
Ivan Lysogor, Leonid Voskov, Alexey Rolich, Sergey Efremov   +3 more
doaj   +1 more source

Contact‐Free Human‐Machine Interfaces via Printed Thermopile Infrared Arrays

Advanced Science, EarlyView.
Can a printed sheet locate and sense a fingertip without being touched? Fully printed, flexible thermoelectric arrays convert the infrared from a hovering finger directly into voltage, with no external power. Aerosol‐jet‐printed silver mirrors partially shield each pixel, creating a local temperature gradient.
Zirui Wang, Nan Luo, Amrutha Bose, Muhammad Irfan Khan, Jiayi Liu, Leon Viktor Klinder, Leonard Franke, Mohamed Hussein, Uli Lemmer, Md Mofasser Mallick   +9 more
wiley   +1 more source

An Uplink UE Group-Based Scheduling Technique for 5G mMTC Systems Over LEO Satellite

IEEE Access, 2019
Narrowband Internet of Things (NB-IoT) is one of the most promising IoT technology to support the massive machine-type communication (mMTC) scenarios of the fifth generation mobile communication (5G). While the aim of this technology is to provide global
Oltjon Kodheli, Stefano Andrenacci, Nicola Maturo, Symeon Chatzinotas, Frank Zimmer   +4 more
doaj   +1 more source