منابع مشابه
Mixers Is a Design Project for Enhancing Mixers a Participatory Approach to Design Prototyping
In this design exhibit, we describe methods we have used to design a noticeboard interface for an older community in London. Three low-fidelity methods of prototyping interaction provided shared and accessible means for us and our end users to communicate design ideas, explore qualities of the user experience, and evaluate them within situations of use. This approach facilitated the development...
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A symmetric gain optoelectronic mixer based on an indium gallium arsenide (In0.53Ga0.47As)/indium phosphide (InP) symmetric heterojunction phototransistor structure is being investigated for chirpedAM laser detection and ranging (LADAR) systems operating in the ‘‘eye-safe” 1.55 lm wavelength range. Signal processing of a chirped-AM LADAR system is simplified if the photodetector in the receiver...
متن کاملSpecific features of vibration-induced disorders.
AIM Assessment of the specific clinical manifestations of hand-arm vibration syndrome (HAVS) or whole-body vibration syndrome (WBVS). PATIENTS AND METHODS Seventy-six patients (34 with HAVS and 33 with WBVS) were examined analysing the data from their medical history, clinical examinations and autonomic nervous system study, capillaroscopy, distal Doppler ultrasound study, vibrotactile sense,...
متن کاملThe Mechanical Design of Drowsiness Detection Using Color Based Features
This paper demonstrates design and fabrication o f a mechatronic system for human drowsiness detection. This system can be used in multiple places. For example, in factories, it is used on some dangerous machinery and in cars in order t o prevent the operator o r driver from falling asleep. This system is composed of three parts: (1) mechanical, (2) electrical and (3) image processing system. A...
متن کاملRF Mixers
The two signals inserted into the two input ports are usually the Local Oscillator signal, and the incoming (for a receiver) or outgoing (for a transmitter) signal. To produce a new frequency (or new frequencies) requires a nonlinear device. In a mixing process if we want to produce an output frequency that is lower than the input signal frequency, then it is called down-conversion and if we wa...
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ژورنال
عنوان ژورنال: Vibrations in engineering and technology
سال: 2019
ISSN: 2306-8744
DOI: 10.37128/2306-8744-2019-4-3