BACKGROUND Subacromial impingement is a common cause of shoulder pain and one cause of rotator cuff disease. We aimed to identify which shoulder motions cause subacromial impingement by measuring the vertical displacement and peak strain of the coracoacromial ligament using ultrasound speckle tracking imaging. METHODS Sixteen shoulders without shoulder disability were enrolled. All subjects w...

ground penetrating radar (gpr) and magnetic methods were used at ghasr-e-shirin town in kermanshah province, southwest of iran for detecting a series of large ancient (ca 1500 years) underground cavities (tagh). the area of study is a historical monument which is named as emarat e khosro. radar and total intensity magnetic field measurements have been done on the eastern part of the complex, wh...

The effect of a background rotation on the decay of homogeneous turbulence produced by a grid is experimentally investigated. Experiments have been performed in a channel mounted in the large-scale ’Coriolis’ rotating platform, and measurements have been carried out in the planes normal and parallel to the rotation axis using particle image velocimetry. After a short period of about 0.4 tank ro...

This paper presents voice-awareness control related to robot’s head movements. Our control is based on a new model of spectral envelope modification for the vertical head motions, and left-right balance modulation for the horizontal head motions. The spectral envelope modification model is based on the analysis of human vocalizations. The left-right balance model is established by measuring imp...

the focus of studies in the field of passive walking has often been on straight walking, while less attention has been paid to the field of turning motions. in this paper, the passive motions of a finite width rimless wheel as the simplest 3d model of passive biped walkers was investigated with a focus on turning motions. for this purpose, the hybrid model of the system consisting of continuous...

Swirling turbulent plumes are investigated with the Morton, Taylor, and Turner model (MTT) $\mathrm{\ensuremath{\Gamma}}$-approach. We derive asymptotic solutions using regular perturbation methods, discuss influence of swirling motions on plume properties for lazy forced plumes, respectively. Specially intriguingly, by introducing a swirl, can even be turned into one in near field during verti...

By considering turbulence observations in the atmospheric stable surface layer over complex terrain, we study effect of submeso motions on budgets mean turbulent kinetic energy (TKE) and (half) temperature variance. Different averaging times are considered (i.e., 100 s 30 min), to filter out or retain contributions second-order moments. Furthermore, results interpreted by introducing four param...