An electrochemicalelectrically controllable device having variable optical andor energetic properties, including a first carrier substrate including an electrically conductive layer associated with a first stack of electrically active layers and a second carrier substrate including an electrically conductive layer associated with a second stack of electrically active layers. The sole portion includes a mid sole having a base portion with a front catch coupled to a toe section of the base portion. However, this can be time consuming and resource intensive if data needs to be copied. A uniformity correction device is positioned to attenuate the light from the output face so that the light has a substantially uniform intensity at the image sensor and a less uniform intensity at the document plane than at the image sensor. ,M) to obtain a plurality of weighted frequency components ), each weighting coefficient being relative to a user, a carrier and an antenna element and said plurality of weighting coefficients being determined from estimates of the channel coefficients ) of the downlink transmission channels between each antenna element and each user for each carrier frequency. The head and the rotational seat are movable relative to the fixed seat between an operative position allowing sewing operation and an inoperative position angularly spaced from the operative position.