Abstract: The invention relates to an application unit (10) for an agricultural application machine for applying granular material to an agriculturally used area (N), comprising a granular material portioning device (12) into which a granular material flow conveying bulk granular material can be introduced and by means of which portions (P) of granular material can be created from the granular material flow, the application unit (10) being equipped with an air separator (30) that allows air to be separated from the granular material flow.

Abstract: A method for determining the parameters of an equivalent circuit for representation of the impedance of a lithium ion cell is provided. The equivalent circuit includes at least one RC element having an ohmic resistor R1, a capacitor C1, and a series resistor Rs. The series resistor Rs is determined by an impedance measurement.

Abstract: A battery tray is for at least one battery module for a motor vehicle. The at least one battery module has multiple battery cells. The battery tray includes: a plurality of modules, the modules including: a front module; a rear module; and at least one central module. The modules each include a base section and at least one wall section. Ducts for a cooling medium are arranged on or in the base section for each of the modules. The modules are each embodied as cast parts and are connected to one another by joining to form a closed, pressure-tight and medium-tight battery tray.

Abstract: The present invention relates to a medical simulation system comprising a physical tissue model; an instrument; and a tracking system adapted to track at least a position and/or an orientation of the physical tissue model and a position and/or an orientation of the instrument, wherein the physical tissue model comprises a tissue model portion and a support structure supporting the tissue model portion and wherein the support structure is elastic. The present invention also relates to a corresponding use and method.

Abstract: The present invention relates to a medical simulation system comprising a physical tissue model; an instrument; and a tracking system adapted to track at least a position and/or an orientation of the physical tissue model and a position and/or an orientation of the instrument, wherein the physical tissue model comprises a tissue model portion and a support structure supporting the tissue model portion and wherein the support structure is elastic. The present invention also relates to a corresponding use and method.

Abstract: A method of checking the authenticity of a digital electric circuit arrangement is achieved in that a concatenation (6; 8, 9) of at least a few circuit-technical elements (10) of the electric circuit arrangement (1) is formed, which deviates from the normal, intended use of the circuit arrangement (1), in that a digital random value generated by the external device (2) and transferred to the electric circuit arrangement (1) is modified in said circuit arrangement by the concatenated elements (6; 8, 9) and transferred to the external device (2), in that the external device (2) compares the modified value with a check value assigned to the random value transferred to the electric circuit arrangement (1), and in that the authenticity of the electric circuit arrangement (1) is recognized only when the modified value and the check value correspond to each other.