Natural vibrations of curved nano-beams and nano-arches

The natural vibrations of curved nano-beams and nano-arches are studied. The nano-arches under consideration have piecewise constant thickness; these are weakened with stable cracks located at re-entrant corners of the steps. A method of determination of natural frequencies is developed making use of the method of weightless rotating spring. The aim of the paper is to assess the sensitivity of the eigenfrequencies on the geometrical and physical parameters of the nano-arch. The results of the calculations favourably compare with similar works of other researchers

Natural vibrations of circular nanoarches of piecewise constant thickness

The free vibrations of elastic circular arches made of a nano-material are considered. A method of determination of eigenfrequencies of nanoarches weakened with stable cracks is developed making use of the concept of the massless spring and Eringen's nonlocal theory of elasticity. The aim of the paper is to evaluate the sensitivity of eigenfrequencies on the geometrical and physical parameters of the nanoarch

South asian contributions to the international rehabilitation literature: an online literature survey of 10 years

Physical medicine and rehabilitation (PM & R) deals with management, rehabilitation and community reintegration persons with disabilities. It is an emerging medical specialty in the South-Asian region (Pakistan, India, Bangladesh, Nepal, Srilanka ,Afghanistan, Bhutan and Maldives,). The region comprises 24% of the world population with a huge burden of disability. The contributions of South Asian authors to the international rehabilitation medicine literature are unknown. The aim of this study was to document the contributions of south Asian authors in the international rehabilitation literature in the last decade