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Date: 13-2-2021
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Date: 13-2-2021
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Magnetostriction
Magnetostriction is measured in large single crystals by means of strain gauges glued to the crystal surface, which respond to the strain in a particular direction. For thin films on a substrate of known thickness and elastic constants, the magnetorestriction coefficient can be determined from the slight flexing of the substrate when the film is magnetized, detected by long optical lever. Optical interferometry is also used.
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تفوقت في الاختبار على الجميع.. فاكهة "خارقة" في عالم التغذية
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أمين عام أوبك: النفط الخام والغاز الطبيعي "هبة من الله"
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المجمع العلمي ينظّم ندوة حوارية حول مفهوم العولمة الرقمية في بابل
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