Results 21 to 30 of about 133,673 (307)

Confining TiO2 Nanotubes in PECVD-Enabled Graphene Capsules Toward Ultrafast K-Ion Storage: In Situ TEM/XRD Study and DFT Analysis

open access: yesNano-Micro Letters, 2020
Titanium dioxide (TiO2) has gained burgeoning attention for potassium-ion storage because of its large theoretical capacity, wide availability, and environmental benignity.
Jingsheng Cai   +9 more
doaj   +1 more source

Harmonized edge/graphitic‐nitrogen doped carbon nanopolyhedron@nanosheet composite via salt‐confined strategy for advanced K‐ion hybrid capacitors

open access: yesInfoMat, 2021
Nitrogen doping has readily emerged as an efficient solution to boost potassium‐ion storage of carbonaceous materials. Nevertheless, the capacity and lifespan enhancement of derived electrodes is still plagued by the incompetent in coordinating the ...
Yuyang Yi   +10 more
doaj   +1 more source

Wearable, small, and robust: the circular quarter-mode textile antenna [PDF]

open access: yes, 2015
A miniaturized wearable antenna, entirely implemented in textile materials, is proposed that relies on a quarter-mode substrate integrated waveguide topology.
Agneessens, Sam   +3 more
core   +1 more source

Circularly-polarised cavity-backed wearable antenna in SIW technology [PDF]

open access: yes, 2017
This study presents a circularly-polarised substrate-integrated waveguide (SIW) antenna implemented using a textile substrate and operating at 2.45GHz, in the industrial, scientific, and medical frequency band.
Agneessens, Sam   +3 more
core   +1 more source

Nature Inspired MXene-Decorated 3D Honeycomb-Fabric Architectures Toward Efficient Water Desalination and Salt Harvesting

open access: yesNano-Micro Letters, 2021
Highlights The 3D honeycomb-like fabric decorated with MXene is woven as solar evaporator. The honeycomb structure enables light-trapping and recycling of convective and radiative heat.
Zhiwei Lei   +8 more
doaj   +1 more source

Sonic City: Prototyping a wearable experience [PDF]

open access: yes, 2003
Sonic City is a project exploring mobile interaction and wearable technology for everyday music creation. A wearable system has been developed that creates electronic music in real-time based on sensing bodily and environmental factors - thus, a personal
Jacobs, M., Mazé, Ramia
core   +2 more sources

High-Transconductance, Highly Elastic, Durable and Recyclable All-Polymer Electrochemical Transistors with 3D Micro-Engineered Interfaces

open access: yesNano-Micro Letters, 2022
Organic electrochemical transistors (OECTs) have emerged as versatile platforms for broad applications spanning from flexible and wearable integrated circuits to biomedical monitoring to neuromorphic computing.
Wenjin Wang   +13 more
doaj   +1 more source

Implementing and Evaluating a Wireless Body Sensor System for Automated Physiological Data Acquisition at Home [PDF]

open access: yes, 2010
Advances in embedded devices and wireless sensor networks have resulted in new and inexpensive health care solutions. This paper describes the implementation and the evaluation of a wireless body sensor system that monitors human physiological data at ...
Chen, Chao, Pomalaza-Raez, Carlos
core   +1 more source

Facilitating nitrogen accessibility to boron-rich covalent organic frameworks via electrochemical excitation for efficient nitrogen fixation

open access: yesNature Communications, 2019
Covalent organic frameworks are potential catalysts for nitrogen reduction, but limited nitrogen transport restricts the utilization ratio of active sites.
Sisi Liu   +5 more
doaj   +1 more source

Laser Tailored Multilayer Graphene Grids for Transparent Conductive Electrodes

open access: yesNanoscale Research Letters, 2019
Applications of graphene as transparent conductive electrodes (TCE) have been hindered either by high cost of single crystal graphene or balance between transparency and sheet resistance of polycrystalline graphene.
Yining Jiang   +6 more
doaj   +1 more source

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