A set of miniature energy storage device through repurposing batteries and green power generation devices combined with an intelligent Internet of Things system is designed in this study. A large quantity of recycled ...
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ISBN:
(数字)9798350386844
ISBN:
(纸本)9798350386851
A set of miniature energy storage device through repurposing batteries and green power generation devices combined with an intelligent Internet of Things system is designed in this study. A large quantity of recycled and repurposed lithium batteries is applied as the core of the energy storage device; photovoltaic panels and minitype wind generators matching a wind-energy and solar-energy charge controller are used for charging batteries; and finally, an intelligent home Internet of Things system is utilized for monitoring and control. The experimental results reveal that the green power generation device appears longer effective charging time during the day, but could continuously generate electricity and store energy in the evening. The charging capacity is also larger than it simply using photovoltaic panels, and the intelligent home Internet of Things system could effectively monitor the power generation in a day and calculate carbon emissions. The prototype design results satisfy the expected function of an intelligent Internet of Things system combined green energy storage device.
High-figure of merit (FoM) plasmonic microwave resonator is researched as a non-invasive on-body sensor to monitor the human body's blood glucose variation rate in adults for biomedical applications, e.g., diabeti...
High-figure of merit (FoM) plasmonic microwave resonator is researched as a non-invasive on-body sensor to monitor the human body's blood glucose variation rate in adults for biomedical applications, e.g., diabetic patients. The resonance frequencies of the proposed sensor are measured to be around [Formula: see text] GHz and [Formula: see text] GHz over the frequency band of DC to 6GHz which are suitable for monitoring interstitial fluid (ISF) changing rate. The [Formula: see text] sensor is experimentally wrapped on the human body arm to monitor the blood glucose changing rate via amplitude and frequency variations of the sensor. Amplitude variation and frequency shift are measured to be around 7 dB and 30 MHz, respectively. The measured results demonstrate the high precision of the proposed approach to depict a valid diagram for glucose changing rate due to good impedance matching of the designed microwave sensor and human body. The sensor is shown to enhance the sensitivity by a factor of 5 compared to the conventional ones.
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