Abstract: A stimulation device is provided, which provides light and sound stimuli capable of inducing the production of melatonin in a human individual subjected to said stimuli. Light and sound stimuli are produced by a light source and a sound emitter connected to a wearable mask or to a wearable frame. The desired stimulation can be easily adjusted by means of mobile devices. A method is also provided based on the stimulation device for optimizing the expression of melatonin in a patient subjected to a periodic and customized treatment. The device and method provide a physical well-being to the individual and are useful for enhancing the performance of athletes and for treating various diseases and symptoms related to low metabolic levels of the melatonin hormone.

Abstract: A domestic appliance assembly comprising at least two machines, each of which being provided with control means able to receive program inputs set by a user and operative information transmitted by the other machine so as said machines can perform their functions in an integrate and synchronised way. Each machine (10,12) comprise a wireless communication module (14) adapted to exchange information directly between the machines and means (16) to process said information and to synchronise the machine functioning. The domestic appliance assembly according to the invention allows to accomplish a better power management, to avoid electrical overloads, and to synchronise the appliance functioning.

Abstract: A domestic appliance assembly comprising at least two machines, each of which being provided with control means able to receive program inputs set by a user and operative information transmitted by the other machine so as said machines can perform their functions in an integrate and synchronised way. Each machine (10,12) comprise a wireless communication module (14) adapted to exchange information directly between the machines and means (16) to process said information and to synchronise the machine functioning. The domestic appliance assembly according to the invention allows to accomplish a better power management, to avoid electrical overloads, and to synchronise the appliance functioning.

Abstract: Rotary twister element suitable to keep under tension the fibres during the twisting operation in a frictional open-end spinning process, constituted by a solid, hollow, reduced-thickness element with perforated skirt, which is internally provided with a suction duct defining a longitudinal slot, the edge of which constitutes the thread formation line, is suitably inclined relatively to the general trix of the same solid, hollow element, as a function of the direction of rotation of the solid element, and of the direction of thread extraction. Also a screen is provided for the air dragged by the rotation of the solid element, which may have a cylindrical shape, a cone frustum shape, or the shape of any other revolution solid.

Abstract: A friction open-end spinning process wherein the fibers of the feeding fiber sliver, once separated into discrete fibers, are sucked by a suction slot on a revolving twister element provided with a perforated surface, to feed the free end of the yarn being formed. The process is characterized in that the fibers are fed in a direction parallel to the free end of the yarn being formed, are kept under an adjustable tension throughout the twisting operation, and are subjected to a progressively increasing twist from the open end of the yarn being formed onwards. The device embodying the above process uses a revolving flat disc provided with perforations arranged according to an annulus as the twister element. This element cooperates with a sucking slot, the edge of which, consituting the yarn formation line, is positioned according to a chord of the disc.