COMBINED ELECTROSPINNING AND MICROEXTRUSION APPARATUS

    公开(公告)号:US20210053284A1

    公开(公告)日:2021-02-25

    申请号:US17052356

    申请日:2019-05-03

    Abstract: A combined electrospinning and microextrusion apparatus includes a robotic manipulator having a plurality of degrees of freedom, an end effector supported and movable by the robotic manipulator, a plurality of extruders housed on the end effector, each extruder having an interchangeable nozzle for extrusion of material, a working plane for deposition of extruded material, a pneumatic circuit supplying a fluid flow to the extruders for controlling extrusion of material, and an electric generator selectively activatable to apply a potential difference between the nozzles of the extruders and the working plane. The extruders are capable of operating selectively in microextrusion mode with inactive electric generator or in electrospinning mode with active electric generator, in an independent manner from each other.

    SYSTEM FOR THE DETERMINATION OF THE REAL EVAPOTRANSPIRATION OF A VEGETATED SURFACE

    公开(公告)号:US20210123900A1

    公开(公告)日:2021-04-29

    申请号:US17253790

    申请日:2019-06-19

    Inventor: Giovanni RALLO

    Abstract: A device for determining the real evapotranspiration of a vegetated surface of a soil includes a porous evaporator, at least one portion of which has resistance to water vapor flow depending on a parameter, the porous evaporator having an upper surface exposed to the atmosphere, a tank of liquid water underlying the porous evaporator to which the tank is connected by a suction tube, and provided with a meter for measuring water level, a sensor for measuring the humidity value of the soil, and a CPU controlling the parameter on which the resistance to the water vapor flow through the porous evaporator depends, depending on the humidity value of the soil detected by the sensor.

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