Results 91 to 100 of about 55,363 (283)

Droplet Triboelectrification on Liquid‐Like Polymer Brushes

open access: yesAdvanced Functional Materials, EarlyView.
This work investigates the triboelectrification of water droplets on polymer brush‐coated surfaces exhibiting minimal contact line pinning. Such surfaces enable the systematic study of electrode patterning and controlled changes in droplet contact area.
Mohammad Soltani   +5 more
wiley   +1 more source

Very Low Power Cockcroft-Walton Voltage Multiplier for RF Energy Harvesting Applications [PDF]

open access: yes, 2019
A device was required that could harvest the electromagnetic energy present in ambient radio frequency (RF) signals. A part of this device must convert the AC RF signal received by the antenna into a DC signal that can be used in an embedded application.
Langdon, Trace
core   +2 more sources

Oral Dosed Organo‐Silica Nanoparticles Restore Glucose Homeostasis and β‐Cell Function in Diabetes Rats

open access: yesAdvanced Functional Materials, EarlyView.
An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu   +14 more
wiley   +1 more source

A Wireless Phone Charging System using Radio Frequency Energy Harvesting

open access: yesArid Zone Journal of Engineering, Technology and Environment, 2017
A wireless phone charging system using Radio Frequency (RF) energy harvesting is presented in this paper. Battery size and extension of charge duration offer great challenge in mobile devices and the fact that one has to always connect it to the mains ...
M. Abdulkadir, Mala U. M. Bakura
doaj  

Development an AI-Optimized RF Energy Harvesting for Sustainable IoT Networks: A Machine Learning Approach [PDF]

open access: yesE3S Web of Conferences
The rapid expansion of the Internet of Things (IoT) has led to an increasing demand for energy-efficient solutions, particularly for battery-dependent devices with limited lifespans.
De La Cruz Arvin   +3 more
doaj   +1 more source

Optimal Cooperative Power Allocation for Energy Harvesting Enabled Relay Networks [PDF]

open access: yes, 2014
In this paper, we present a new power allocation scheme for a decode-and-forward (DF) relaying-enhanced cooperative wireless system. While both source and relay nodes may have limited traditional brown power supply or fixed green energy storage, the ...
Ansari, Nirwan, Huang, Xueqing
core  

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung   +7 more
wiley   +1 more source

Radio Frequency Energy Harvesting for Underground Sensor Nodes: Possibilities and Challenges

open access: yesIEEE Access
Radio frequency energy harvesting (RFEH) is considered as one of the possible and environmentally friendly solution for energizing sensor devices and prolonging the lifetime of wireless sensor networks (WSNs).
Emmanuel Mahenge   +3 more
doaj   +1 more source

Wireless Battery Charging System using Radio Frequency Energy Harvesting [PDF]

open access: yes, 2004
It seems these days that everyone has a cellular phone. Whether yours is for business purposes or personal use, you need an efficient way of charging the battery in the phone.
Harrist, Daniel Wesley
core  

Selective Charge Injection via Topological van der Waals Contacts for Barrier‐Free p‐Type TMD Transistors

open access: yesAdvanced Functional Materials, EarlyView.
 Topological van der Waals contacts represent a new class of electrodes for 2D semiconductors, enabling precise control of the Schottky barrier height (SBH) and contact resistance (RC) through interlayer distance and orbital hybridization engineering. In Se‐based transition metal dichalcogenides, these contacts achieve an ultralow SBH of 7 meV, RC of 0.
Soheil Ghods   +15 more
wiley   +1 more source

Home - About - Disclaimer - Privacy