this study introduces the differential transform method (dtm) to analyse the free vibration response of a rotating, closed section, composite, timoshenko beam which features material coupling between flapwise bending and torsional vibrations due to ply orientation. the governing differential equations of motion are derived using hamilton’s principle and solved by applying dtm. the natural frequ...

Humanoid robots have been expected to work as an alternative to human in severe working conditions. In order for humanoid robots to work in the field of civil engineering, construction or disaster-relief, humanoid robots must have ability of walking on uneven terrain such as sand, clay and snow. However, most of studies on biped walking on even or uneven terrain have assumed stiff ground. Biped...

We present a numerical study of the rotating flow generated by two rotating disks in co-/counter-rotating, inside a fixed cylindrical enclosure similar to the Czochralski configuration (Cz).  The enclosure having an aspect ratio A = H/Rc equal to 2, filled with a low Prandtl number fluid (Pr = 0.011), which is submitted to a vertical temperature gradient. The finite volume method has been used ...

We present similarity solutions which describe the runaway collapse of a rotating isothermal cloud and its subsequent inside-out collapse. The similarity solutions contain the sound speed, c s , and the ratio of the speci c angular momentum to the mass, !, as model parameters. During the runaway collapse, the surface density of the disk is nearly constant in the central part and inversely propo...

Loose bodies are fragments of cartilage or bone present in the synovial fluid. In the present study we assessed if loose bodies could be used as a source of autologous human chondrocytes for experimental purposes. Histochemical examination of loose bodies and differential enzymatic digestions were undertaken, the isolated cells were cultured in alginate bead microspheres and immunolocalisations...

Selective Separation Sintering (SSS) is a powder layer based Additive Manufacturing approach. SSS can fabricate high temperature ceramic and metallic parts at comparatively lower cost with high quality. In the printing process a dry powder of higher sintering temperature is deposited into the base material which makes up the part. The inserted powder defines the boundary of the part and separat...