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Remote energy efficiency for wireless micro sensor devices in multimedia, signal processing and communication technologies is of paramount interest not only for ensuring continuous network operation despite primary battery limitations, but also for reducing carbon footprint in communication systems. Increasing demands of energy supply for micro devices, in particular, with the advance of complex multimedia...
This paper presents a designing of a low voltage energy harvesting circuits for generating rectified voltage into storage devices using vibrating piezoelectric element. A technique (i.e., DC-DC Step-Down converter) has chosen for designing the low-power circuit with low voltage energy. The proposed method consumes very little power, and is especially suitable for the environments, where ambient harvested...
This paper describes a Fuzzy Logic Controller (FLC) algorithm for designing a Wheelchair Controller (WC). The controller enables the movement of wheelchair and makes brake in an unstructured environment by the WC sensor to avoid any encountered obstacles. The WC is found to be able to react to the environment appropriately during its navigation to avoid crashing with obstacles by turning to the proper...
The ion-sensitive field-effect transistor (ISFET) produces voltage signals, in a similar manner to the metal-oxide field-effect transistor, sensitive to ionic concentration change. When immersed in ionic solution with mixed ions of similar chemical characteristics, ISFETs respond with deceptive voltage signals due to the interfering ion contribution over the main ion of interest. In this paper, we...
This paper presents the classification of ionic concentration using ion-sensitive field-effect transistor (ISFET) sensors with post-processing neural network ensemble. ISFETs are electrochemical potentiometric sensors that produce voltage response indicative of ionic concentration change. However, in the presence of ions of similar charge, the voltage levels tend to be influenced by the interfering...
This presentation provides strategic direction for ubiquitous sensor networks and how we can benefit from the technology for the betterment of our lifes. An overview of the global progress is presented and the values of the technology in terms of the realization of WSN implementation in many vertical applications such as in the agriculture, medical, transportation and environment will be given.Some...
Response of Chemical Field-Effect Transistor (CHEMFET) electrochemical sensors are taken from the output of a readout interface circuit that maintains constant drain-source voltage and current levels. We employ the readout circuit for the purpose of supervised learning training data collection. Sample solutions are prepared by keeping the main ion concentration constant while the activity of an interfering...
This paper presents a new architecture for distributed arithmetic look-up table (DALUT). The technique proposed here shows a dramatic improvement in the memory size of the architecture used for implementing a high-speed high-order digital finite impulse response filter. The architecture proposed in this paper provides DA technique the cure for its major disadvantage i.e. the exponential growth of...
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