Results 291 to 300 of about 82,131 (349)

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

planar two-degree-of-freedom L-shaped capacitive displacement sensor based on time grating

Yuxin Tian, Hongji Pu, Hewen Wang, Xingchen Fan, Qihang Dai   +4 more
openalex   +1 more source

An On‐Demand Neuromorphic Vision System Enabled by a Multi‐Paradigm Neuromorphic Device and Hierarchical Reconfigurability Designed from Device to System Level

Advanced Science, EarlyView.
An on‐demand ultra‐reconfigurable intelligent vision system with hierarchical reconfigurability from device to system levels is demonstrated. Through co‐design of a multi‐paradigm device, reconfigurable circuits, and adaptive system architecture/algorithms, the system enables seamless switching among spiking, non‐spiking, neuromorphic imaging (NI), and
Biyi Jiang, Jiayi Xu, Liang Ran, Xinhe Feng, Khalil Harrabi, Yida Li, Longyang Lin, Feichi Zhou   +7 more
wiley   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Printable Conductive Hydrogels for Electrochemical Biosensing and Soft Bioelectronic Interfaces

Advanced Science, EarlyView.
Flexible, conductive hydrogels that integrate printability, mechanical tunability, biocompatibility, and electronic performance remain challenging to achieve. Here, we develop 3D‐printable poly(ethylene glycol)–poly(pyrrole)‐ hydrogels with tissue‐like mechanics, high cytocompatibility, and robust electrochemical function.
Lukas Hein, Renan Colucci, Xin Wei, Tsvetomir Ivanov, Katharina Landfester, Ulrike Kraft, Maria Villiou   +6 more
wiley   +1 more source

Development and Upgradation of an IoT-Based Soil Monitoring System from Capacitive Sensor to TDR Sensor for Enhanced Accuracy and Multi-Parameter Soil Analysis

Golam Kibria, Md. Mahmud Sazzad, Md. Rakib Hossen   +2 more
openalex   +1 more source

Design, implementation, manufacturing and measurements of Dickson charge pump circuits for capacitive micromachined sensor biasing

, 2019
Zülkarneyn Şişman
openalex   +1 more source

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Capacitive sensor for respiration monitoring

2015 IEEE Sensors Applications Symposium (SAS), 2015
Respiration monitoring of patients with chronic diseases, children, elderly, or sportsmen can be a useful tool in health condition assessment, early diagnosis of various diseases, and real-time prediction of possibly dangerous health conditions. In this paper we present a low-cost solution of respiration monitoring system, based on a custom designed ...
Josip Grlica, Toni Martinovic, Hrvoje Dzapo   +2 more
openaire   +2 more sources

The capacitive sensor

2009 32nd International Spring Seminar on Electronics Technology, 2009
This paper is focused on a cavity in LTCC (Low Temperature Co-fired Ceramics), which is one of the methods used for creation of pressure sensor. The mechanical part is 3D structure in which there are integrated electrodes created by TFT (Thick Film Technology). One of them is fixed and the other one is on the deformation element.
Petr Kosina, Lenka Hajkova, Josef Sandera, Tomas Symersky   +3 more
openaire   +1 more source