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There are many types of liquid level measurement instrumentations in modern technology, including the multiple-liquid level measurement. However, there are some practical considerations that make them unfit to use in car washer tanks. They are often too expensive, too cumbersome, too awkward and unsuitable in tanks. Only a few of them are suitable enough for the technology to widely benefit their...
Electrical tree break-down is the major failure problem in cable accessories, however, mechanisms of the electrical tree initiation and propagation are still lack of deeply research, especially in silicone rubber (SIR) which is widely used as insulation material for cable accessories. Long-term aging (0– 1000 h) experiments under the different voltages were conducted to observe electrical tree initiation...
The role of DCP on the space charge performance of XLPE was investigated in this paper. Space charge accumulation characteristics of samples were researched through pulsed electro-acoustic (PEA) and the trapping behavior was studied by surface potential decay (SPD). The results show that the sample without DCP is injected with homo-charges. However, with the increase of DCP concentration, hetero-charges...
In this paper, we present a new compact, high-input-impedance amplifier for neural signal acquisition. In this design, current feedback is achieved in a modified fully differential folded cascode amplifier to isolate the input signal from the feedback connection and thus increase the input impedance of the preamplifier. Common mode feedback circuits and ponderous capacitors are eliminated by using...
Currently, Cars do not have any instruments to measure the water levels in the washer tank of the cars. The high number of accidents relating to the uncleanness of the windscreen continued; In order to ensure the cleanness of the car windscreen, the washer tank which is used for storing the washing water must not be empty. The measurement of liquid level helped to remind drivers. Examples of liquid...
To reduce the RC interconnect delays and cross-talk noise associated with the sub-28 nm advanced CMOS technology nodes, Dual Damascene process combined with Ultra low-k material needs to be introduced into Integrated Circuits manufacturing. With pores and low density, Ultra low-k material can be easily damaged. In this paper, we studied how to protect Ultra low-k material (k=2.5) in the Metal Hard...
Muscle synergy is considered as a vector specifying a pattern of relative muscle activation. The goal of this paper is to explore whether there exists similarities between muscle synergies in similar upper limb motion tasks. One center-out-center reaching task and two path movement tasks with regard to the elbow and shoulder joints were designed, and seven healthy adults were recruited in this study...
Myoelectric pattern recognition techniques have been developed to infer user's intention of performing different functional movements, which can be used to provide volitional control of assisted devices for people with disabilities. The pattern recognition based myoelectric control systems have rarely been designed for stroke survivors. Aiming at developing such a system for stroke rehabilitation,...
Based on the McNeal cable model, taking the myelinated nerve fiber with limited length as the research object, the aim of this paper is to simulate nerve conduction block induced by functional electrical stimulation (FES) and then investigate the block regularity, we also compared the degree of neural damage induced by high frequency symmetry biphasic pulses and intermittent biphasic pulses. In our...
The purpose of this study is to seek a new stimulus pattern, which stimulates pudendal nerve efficiently and reduces electrochemical damage, by means of investigating its influence on abolishing detrusor hyperreflexic contraction in bladder reflex pathway. For studying the mechanism of nerve conduction, a simulation system was built based on Frankenhaeuser-Huxley (FH) equations. With this system,...
We report the characterization results of in-liquid longitudinal-mode FBAR (L-FBAR) for real-time in-situ monitoring of the Vroman effect, a competitive adsorption and exchange of proteins on a surface. The change of resonant frequency of the L-FBAR, ~1.55 GHz, is a direct function of the proteins' molecular weight, and thus we monitor the resonant frequency shifts to estimate the adsorption and exchange...
A prototype neuro-stimulus chip for retinal implants in blind patients affected by Age-related Macular Degeneration (AMD) or Retinitis Pigmentosa (RP) is presented in this paper. This retinal prosthetic chip was designed to replace the degenerated photoreceptor cells, and in order to stimulate directly the remaining healthy layers of retinal neurons. The current stimulus circuits are monolithic integrated...
A prototype neuro-stimulus chip for sub-retinal implants in blind patients affected by age-related macular degeneration (AMD) or retinitis pigmentosa (RP) is presented in this paper. This retinal prosthetic chip was designed to replace the degenerated photoreceptor cells, and in order to stimulate directly the remaining healthy layers of retinal neurons. The current stimulus circuits are monolithic...
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