منابع مشابه
Dynamic Analysis of Circular Plates in Contact with Fluid and Resting on Two-Parameter Foundations
The dynamic behaviour of a circular plate in contact with fluid and resting on two-parameter elastic foundations is of interest in the field of geotechnics, structure, highway, railway, oil and gas and mechanical engineering. In this work, the dynamic behaviour of circular plate in contact with fluid and resting on Winkler and Pasternak foundations is investigated. The coupled differential equa...
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The existence of solutions is proved for unilateral dynamic contact problems of elastic von Kármán plates. Boundary conditions for a free and clamped plate are considered.
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Contact dermatitis can affect dentists, orthodontists, technicians, nurses and the patients. The increase of dental patients in recent years caused an increase in reports of dermatitis and other allergies in patients and in dentists too. With changes in dental materials through years, allergy and contact reactions in persons in contact with new allergens had been increased. So dentists and derm...
متن کاملExperimental Study of Probe-Sample Contact Influence on Dispersion Curve Measurement with Phased Arrays in Plates
Dispersion curves of guided modes in plate-like structure are used to investigate elastic properties. Laser based ultrasound are conventional contactless techniques to acquire dispersion curves. Measurements are broadband and quite sensitive but time consuming. Linear transducer arrays in contact with the sample can also be used to generate and measure guided modes in plate. Measurements are li...
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The pour plate method of counting bacteria is more precise than the streak plate method, but, on the average, it will give a lower count.
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ژورنال
عنوان ژورنال: Nature
سال: 1980
ISSN: 0028-0836,1476-4687
DOI: 10.1038/287576b0