Pakeniene, Ausra

Disclosed herein is a thin 2D movable flexible antenna for energy harvesting and power supply for wireless autonomous sensor nodes or other electronic circuitry integrated into belts of production conveyors. Also disclosed herein is a method of integration of 2D flexible antennas in flat segments of conveyor bands, providing a high gain for the latter, the value of which becomes comparable with the stiff 3D antennas.

The invention discloses a wooden handle pocket knife comprising a blade, a wooden handle, a bolster, a linear lock and release plate, a shaft, a screw, a pin and a washer. The blade comprises a connecting end with a ridged surface for interacting with another ridged surface for precise locking when the blade is in unfolded and locked position. The ridged surface of the connecting end of the blade interacts with a ridged surface of a linear lock and release plate. The linear lock and release plate comprises an L shaped end for preventing the blade from interacting with the bolster. The washer interacts with the linear lock and release plate and the handle providing a smoothened motion of the folding and unfolding of the blade. The liner lock and release plate is secured to the wooden handle at two points, by the shaft and the pin.

Disclosed herein is encapsulated into the conveyor's segment the conveyor condition monitoring system protected from the harsh environment and devoted to the monitoring and control of the temperature, humidity, acidity, etc., or any other parameters informing on the hygienic state of the conveyor's surface. Acquired by sensors, the data about the state of the conveyor surface is collected by the controller and transmitted to a wireless data hub based on Wi-Fi, Bluetooth, ZigBee, or other wireless communication protocols.

A hermetic sample holder (100) for electro-optical and/or opto-electrical measurements is disclosed. The sample holder comprises a one-piece metal body (101) and a lid (107) forming a sample cavity equipped with a clamp (113) for securing the sample, optical windows (108, 109) in the lid and in a bottom wall of the metal body, and rotatable and translatable rod-manipulators (111) having electric connectors (305) fixed to an end thereof via plastic insulator fingers to apply a voltage to the sample. The electric connectors are designed for direct contact with electrical contact pads (404) on the sample. (400). The sample holder is designed for ease of use in a standard inert atmosphere glovebox and enables switching between contact pads on the sample without unsealing the sample holder.

A leg blood flow stimulation system comprising a closed chamber, a low-frequency acoustic vibration-exciting speakers located on sides of the chamber, an array of high-frequency vibration-exciting piezoelectric bimorph transducers located in the chamber, in the plane of the chamber corresponding to the plane of the foot, corresponding to the sole support zone below the toes and the heel support zone, where each zone includes one to three piezoelectric bimorph transducers. The leg stimulation system is designed so that a person's legs up to the knees can be placed in a closed chamber and encased in a standard type of elastic splint type system. The feet are affected by bimorph type piezoelectric transducers connected to the controller, and the lower legs are affected by acoustic vibrations thanks to the speakers installed in the side walls of the closed chamber. In this way, the pulses sent from the controller control the synchronous operation of bimorph piezoelectric transducers and acoustic speakers, which activates blood flow in the tissues of human legs and increases the efficiency of blood flow stimulation.

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The system according to the invention includes a vibrator (1), a matrix (2) fixed at the free end, an excitation-control generator (3), a polymer material workpiece (4) fixed in a tray (5), which is connected to a precision positioning drive (6) controlled from the excitation-control generator (3). High-frequency mechanical vibrations are excited in the matrix (2), and the pressure to the polymer material workpiece (4) according to the set technological mode forms a microstructure corresponding to the shape of the matrix (2). In order to change the microstructure in the polymer material workpiece (4), positioning of the workpiece (4) is performed according to the set program from the excitation-control generator (3). Thus, with the same matrix (2) by positioning in the plane according to the set program, it is possible to prepare a dozen variants of microstructures, i.e., MEMS elements.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …