Czarnik, Maciej

A computer-implemented method of monitoring and predicting the risk of occurrence of bee pathogens and environmental hazards, as well as a system for the implementation of this method, being based on volatile organic compounds (VOCs) analysis, Internet-of-Things (IoT) type sensors, machine learning and satellite data. The invention concerns both effective data transmission from sensors to the cloud computing, their storage and processing, as well as the application of learning methods data analysis and interpretation to support the management of beehives and to support the management of detection of pathogens.

A training belt for practising football techniques, finding application in improving football skills. The training belt for practicing football techniques comprising a shield, a carrier belt, and a frame is wherein the shield (1) is made of waterproof synthetic fabric and is maintained in an extended position by a frame (3) placed in a tunnel (4); the shield (1) has an upper part curved in an arc and a lower cutout, forming a shape that restricts the user's field of vision; the frame (3) is made of spring wire and is detachably connected to the carrier belt (2), which has fastenings (6) for the end of the frame (3).

A system for the removal of impurities from waste polymer raw material, characterised in that it comprises the following components: raw material racks (1), PH vessels (2), a reactor vessel (3), buffers (4), a vacuum pump unit and a cyclone (5), a silo for unsuitable material (6), a silo for purified material (7), wherein the PH vessels (2) are located above the reactor vessel (3), the buffers (4) are located under the reactor vessel (3), the vacuum pump unit and the cyclone (5) are located next to the reactor vessel (3), the silos for unsuitable material (6) and purified material (7) are located under the buffers (4). A method of removing impurities from waste polymer raw material, characterised in that it is implemented using the system for the removal of impurities from waste polymer raw material.

A passive return mechanism for a gate (3) of a channel valve (Z) equipped with an actuator (1) powered by an external energy source, wherein the actuator (1) maintains the gate (3) of the channel valve in a specified working position: open/closed, characterized in that the passive return mechanism comprises a mechanical energy accumulator (2) configured such that, in the event of a power failure in the actuator (1) maintaining the gate (3) of the channel valve in the specified open/closed position, the mechanical energy accumulator (2) activates the actuator (1), which moves the gate (3) of the channel valve back to the appropriate position opposite to the working position, i.e., closed from open and open from closed.

The invention concerns a thin, corrugated skin coating for controlling the turbulent boundary layer developing on a surface of an aerodynamic body, particularly in areas characterised by a high risk of flow separation, which coating enables effective reduction or complete elimination of turbulent separation at high Reynolds numbers. The invention concerns a thin skin coating that comprises an active section consisting of a corrugated surface that modulates the turbulent boundary layer, and an adhesive section that enables installation of the coating on a physical body providing resistance when there is relative motion between the body and a viscous fluid. Examples of such objects include wind turbine blades. A method for selecting parameters of the coating, characterised in that it comprises the following steps: determining the local Reynolds number Re_τ, identifying the starting point for installation of the corrugated coating, selecting the coating corrugation amplitude so that it rises above the surface by 3% to 4% of the boundary layer thickness. selecting the corrugation wavelength of 15 x the amplitude, taking into account local flow conditions such as a deviation of the flow direction, caused, e.g., by a centrifugal force resulting from the rotational motion of a blade or from the shape of the body surface of a moving vehicle. The surface skin coating for turbulent flow control, whose parameters are determined according to the method described in claims 1-2, is characterised in that its thickness ranges from 0.1 mm to 15 mm, it has on one side a corrugated, in at least one direction, technically smooth surface, and the amplitude is 5% to 6% of the thickness of the turbulent boundary layer developing at the location where the coating is installed.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …