Controlled Synthesis of Tri‐ and Multi‐Doped Graphene
Advanced Materials Interfaces, EarlyView.This review systematically evaluates synthesis routes for tri‐ and multi‐doped graphene, from hydrothermal and pyrolysis methods to flash Joule heating, critically assessing how each governs dopant incorporation, bonding configuration, and resulting electronic properties.
Maria Hasan +4 more
wiley +1 more source
A GaAs MMIC-based X-band Dual Channel Microwave Phase Detector based on MEMS Microwave Power Sensors
MATEC Web of Conferences, 2016 By sensing the output powers of two channels with MEMS microwave power sensors, a wideband 8-12GHz dual channel microwave phase detector is presented. In order to detect phase difference between reference signal and testing signal in entire 0-360° at X ...
Hua Di, Tan Junyan, Cai Chunhua
doaj +1 more source
Determination of Moisture Content in Oil Palm Fruits Using a Five-Port Reflectometer
Sensors, 2011 This paper presents the development of a PC-based microwave five-port reflectometer for the determination of moisture content in oil palm fruits. The reflectometer was designed to measure both the magnitude and phase of the reflection coefficient of any ...
Cheng Ee Meng +4 more
doaj +1 more source
Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications
Advanced Materials Technologies, EarlyView.Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja +9 more
wiley +1 more source
Proceedings, 2017 This work presents new elements of understanding for the microwave-based gas sensors behavior at room temperature. A TiO2-covered microstrip interdigital capacitor was submitted to various ethanol concentrations and showed a proportional response in the ...
Guillaume Bailly +4 more
doaj +1 more source
Evaluation of Unobtrusive Microwave Sensors in Healthcare 4.0-Toward the Creation of Digital-Twin Model. [PDF]
Sensors (Basel), 2022 Khan S +3 more
europepmc +1 more source
Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators
Advanced Materials Technologies, EarlyView.Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich +2 more
wiley +1 more source
Microwave Doppler Radar Occupancy Sensing for HVAC Energy Savings
IEEE Journal of MicrowavesBuildings consume about 30% of the world's energy, and produce 37% of global energy-related CO2 emissions. Building energy efficiency is becoming even more critical as climate change related events take a toll on human life, and ...
Amy Droitcour +6 more
doaj +1 more source
Techniques to Improve the Performance of Planar Microwave Sensors: A Review and Recent Developments. [PDF]
Sensors (Basel), 2022 Abdolrazzaghi M, Nayyeri V, Martin F.
europepmc +1 more source
Low‐Pressure Plasma‐Based Wrinkling of PDMS and Machine Learning‐Driven Property Engineering
Advanced Materials Technologies, EarlyView.Wrinkled surfaces are well‐suited for controlled surface deformations in the µm range. The key challenge is the relation between the resulting wrinkle features and the necessary process conditions. Machine learning techniques have solved the prediction and inverse design problems for various preparation conditions, opening a precisely controlled ...
Fabian Kopsch +7 more
wiley +1 more source