منابع مشابه
Electronic Noses and Applications
Electronic noses are customized devices employed to detect and to identify gaseous mixtures, even to give the concentration of the atmosphere components. Nowadays, the research in this domain is more and more growing, in Europe and other countries in the world, for many applications, such as environmental protection, food industries, perfumery, public safety, medicine, and pharmacy. Electronic ...
متن کاملThe Lowdown on Noses
The Earth’s early environment was relatively poor in oxygen, and observations and modeling indicate that the rise in oxygen levels did not occur until long after oxygen-enriching bacterial photosynthesis had developed. Catling et al. (p. 839; see the Perspective by Kasting) explain the apparent disconnect between oxygenation and the start of photosynthesis by adding methanogenesis to the proces...
متن کاملOn Mappings Between Electronic Noses
We consider the task of finding a mapping between two eNoses that employ two different sensor technologies, quartz microbalance and conducting polymers. Such a mapping is a model that predicts the response of one eNose based on the response of the other. eNose mappings are important for odor communication and synthesis, as well as for eNose data integration. We investigated a number of methods ...
متن کاملRhinoplasty for Middle Eastern noses.
BACKGROUND Rhinoplasty remains one of the most challenging operations, as exemplified in the Middle Eastern patient. The ill-defined, droopy tip, wide and high dorsum, and thick skin envelope mandate meticulous attention to preoperative evaluation and efficacious yet safe surgical maneuvers. The authors provide a systematic approach to evaluation and improvement of surgical outcomes in this pat...
متن کاملElectronic Noses and Their Applications
Electronic/artificial noses are being developed as systems for the automated detection and classification of odors, vapors, and gases. An electronic nose is generally composed of a chemical sensing system (e.g., sensor array or spectrometer) and a pattern recognition system (e.g., artificial neural network). We are developing electronic noses for the automated identification of volatile chemica...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1899
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09091899-165a