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.
In this paper, the impact of fin number on device performance and hot carrier induced device degradation was investigated for n-channel tri-gate multi-fin FinFET with different fin numbers. The threshold voltage (VTH)...
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In this paper, the impact of fin number on device performance and hot carrier induced device degradation was investigated for n-channel tri-gate multi-fin FinFET with different fin numbers. The threshold voltage (VTH) shift, transconductance, and subthreshold swing degradation were extracted to determine the degradation of device. It was found that the device with fewer fins shows better device performance, but suffer from more serious hot carrier induced device degradation. It is suggested that the existed coupling effect between the fins reduces the equivalent electric field in the multi-fins devices, thus shows better reliability than the single-fin device does after hot carrier stress.
In this work, the effect of fin width on device performance and reliability for high-k/metal tri-gate n/p-type FinFETs was investigated including electrical characteristic clarification and simulation. Carrier conduct...
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ISBN:
(纸本)9781509018314
In this work, the effect of fin width on device performance and reliability for high-k/metal tri-gate n/p-type FinFETs was investigated including electrical characteristic clarification and simulation. Carrier conduction in the trapezoidal shape Si-fin body of FinFETs is different for devices with different fin bottom widths (W Fin _ bottom ), which will affect device properties. For n-type FinFETs, the experimental results show that thinner W Fin_bottom device performs better reliability under HCI stress due to higher inversion carrier density at the center of Si-fin channel. For p-type FinFETs under negative bias stressing, thinner W Fin_bottom device shows more serious degradation with the increasing of stressing voltage due to larger electric field within the Si-fin and higher energy of inversion holes, while the thicker W Fin_bottom device shows almost insensitively degradation with the variation of stressing voltage.
Based on particle swarm optimization (PSO) algorithm for optimal design of PID controller, a method is proposed to navigate of a two-wheeled mobile robot from a given initial configuration to a desired final configura...
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Based on particle swarm optimization (PSO) algorithm for optimal design of PID controller, a method is proposed to navigate of a two-wheeled mobile robot from a given initial configuration to a desired final configuration in an unknown environment filled with obstacles. The mobile robot can follow a wall with PID control to adjust motor speed and avoid obstacles with moving square method in an unknown environment. The PSO algorithm is an optimization technique which is inspired by the social-like behavior, such as bird flocking or fish utilized it to solve optimization problems. It finds the global best solution by simply adjusting the trajectory of each particle its own best particle and toward the best particle of the entire swarm at each generation. The PSO algorithm becomes very popular due to it can be easily implemented and quickly find a good solution. Then the PSO algorithm can be used to adjust parameters of PID to control wheel velocities in an unknown environment filled with obstacles. To show the feasibility of the proposed method, simulation results and experiments are included for illustration.
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