نتایج جستجو برای: several structures
تعداد نتایج: 1266012 فیلتر نتایج به سال:
Non-destructive detection and evaluation of invisible cracks in metal structures is an important matter in several critical environments including ground transportation, air transportation and power plants. In this paper, a high-Q near-field Microwave probe is designed and fabricated using defected ground structures for surface and subsurface crack detection in metal structures. For this purpos...
The damage and failure in engineering structures, especially offshore structures, and hull of ship structures, causes economic losses, human disasters, and environmental problems. Therefore, diagnosing and predicting the occurrence of failure in these structures is vital. In this situation, engineers have introduced the use of structural health monitoring operations as a suitable way to prevent...
Background We aimed to identify the hierarchy of rates of decline in 16 physical functioning measures in U.S. and English samples, using a systematic and integrative coordinated data analysis approach. Methods The U.S. sample consisted of 13,612 Health and Retirement Study participants, and the English sample consisted of 5,301 English Longitudinal Study of Ageing participants. Functional los...
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