In this study a data acquisition card has been designed and implemented to observe and analysis of the voltages and the currents of an alternator under resistive, capacitive and inductive loads. Detail analysis of pow...
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In this study a data acquisition card has been designed and implemented to observe and analysis of the voltages and the currents of an alternator under resistive, capacitive and inductive loads. Detail analysis of power, power factor, phase angles and harmonics of the alternator has been done using software written in LabVIEW. The measurement system of voltage and current is opened to remote access. Users can access to the system from any computer having internet connection and make the instantaneous measurements. The experimental results show that the data obtained from power analyzer are very close to remote monitored one. Therefore the system developed can be a useful tool for engineering education purposes as an online course material, a simulator and an online control experiment.
Crossbar memories are promlsmg memory technologies for future data storage. Although the memories offer trillion-capacity of data storage at low cost, they are expected to suffer from high defect densities and fault r...
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Digital fringe projection using a digital projector is an extensively technique used for 3D surface profile. Fringe pattern images projected by digital projector, appear nonlinear gamma effect. This effect is an error...
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In this paper we compare two low cost solutions, e.g. Rogers 5880LZ laminate and a single mask IC processed fused silica wafer, for the implementation of mm-wave antennas. The design, manufacturability and performance...
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Optical electronic nose (olfactory sensing) technologies have recently become a convenient technique to identify the quality of food and beverage products based on the odor classification. In this paper, we reported a...
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Optical electronic nose (olfactory sensing) technologies have recently become a convenient technique to identify the quality of food and beverage products based on the odor classification. In this paper, we reported an optical-based electronic nose system consisting of thin-film sensing materials, array of light emitting diode (LED), photo-detector and pattern recognition program. The organic mixtures thin film gas sensor was prepared by spin coating of Zinc-2,9,16,23- tetra-tert-butyl 29H,31H-phthalocyanine (ZnTTBPc), Zinc-5,10,15,20-tetra-phenyl-21H,23H-porphyrin (ZnTPP) and manganese(III) 5, 10, 15, 20-tetraphenyl-21H,23H-porphyrin chloride (MnTPPCI) onto a clean glass substrate. The electronic nose system was developed by using the low-cost LED array as a light source. Then the light intensity that is transmitted through the organic thin film during the experiment was detected by the color light to frequency converter device (photo-detector). The ability of this system was tested by using volatile organic compound (VOCs) vapors such as methanol, ethanol, and isopropanol. Principal component analysis (PCA) has been used as the pattern recognition for this electronic nose system. The result confirms that the sensing layer that composed of the three types of organic compounds described the groups of chemical vapors by using the array of LED.
Epilepsy is caused by sudden flurries of electrochemical activity in the brain, which interrupt the 'conversation' among neurons. Consciousness, memory, sense, speech, mood, movement, and motions can all be af...
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An ultra-low-power 1KS/s 8-bit current mode successive approximation (SAR) analog-digital converter (ADC) for pacemakers is presented. The proposed system architecture is designed to achieve a small chip area and ultr...
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ISBN:
(纸本)9783981375404
An ultra-low-power 1KS/s 8-bit current mode successive approximation (SAR) analog-digital converter (ADC) for pacemakers is presented. The proposed system architecture is designed to achieve a small chip area and ultra low power consumption by using current mode operation. The circuit is realized in a IBM 0.13μm CMOS technology. The simulated power consumption is 225 nW corresponding to a figure of merit of 0.657pJ/conversion-step while operating from a 1 V supply. The power consumption is one of the lowest reported.
Teeth segmentation of dental X-ray radiographs is the important step in teeth recognition. A segmentation to partition teeth from other areas in dental X-ray images. This paper proposes wavelet transform (WT) to segme...
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In many cases, students become stressed and they become worried about their study, which in terms become a great impediment to their learning capability. This paper proposes new framework of intelligent game model bas...
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This report focuses on the problem of temperature influence on one of the most basic analog circuitry subsystem - a current mirror, based on MOSFET transistors. Basic and cascode current mirrors are put to a simulatio...
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