The interaction of electric field with charged domain walls in ferroelectrics is theoretically addressed. A general expression for the force acting per unit area of a charged domain wall carrying free charge is derived. It is shown that, in proper ferroelectrics, the free charge carried by the wall is dependent on the size of the adjacent domains. As a result, the mobility of such domain wall (...

Solvent cast and compression molded composite films based on poly(vinylidene fluoride-trifluoroethylene), containing pristine and silylated BaTiO 3 particles, were poled, and their electromechanical response (d 33), their dielectric properties, and the crystalline structure of the embedded BaTiO 3 particles, probed by X-ray diffraction, were recorded during one week. Their d 33 was also measure...

AIM To investigate the effect of supplementing high-volume endurance training with heavy strength training on muscle adaptations and physical performance in elite cross country skiers. Eleven male (18-26 years) and eight female (18-27 years) were assigned to either a strength group (STR) (n=9) or a control group (CON) (n=10). STR performed strength training twice a week for 12 weeks in addition...

In the last years flexible, low-cost, wearable, and innovative piezoelectric nanomaterials have attracted considerable interest regarding development of energy harvesters sensors. Among materials, special attention has been paid to electroactive polymers such as poly(vinylidene fluoride) (PVDF) its copolymer fluoride- co -trifluoroethylene) (PVDF-TrFe), which is one most extensively investigate...