AGH University of Science and Technology

agh.edu.pl/en
Krakow, Poland

AGH University of Science and Technology is one of the leading institutes of technology and the largest technical university in Poland, located in Kraków. The university was established in 1919, and was formerly known as the University of Mining and Metallurgy. It has 15 faculties and one school, which will become a faculty in the near future. Wikipedia.

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Patent
AGH University of Science and Technology | Date: 2017-03-29

A method for preparation of a perovskite-based oxide of the chemical formula: BaLnMn_(2)O_(5+), where Ln represents at least one element selected from the group consisting of: Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu or a mixture of elements from the group consisting of: Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y, the method comprising synthesizing a perovskite precursor by a sol-gel method comprising the steps of: dissolving nitrates of respective elements in water, evaporating water to obtain a perovskite precursor, decompose excessive nitrates and oxidize carbon residues, grinding the perovskite precursor to a powdered perovskite precursor, annealing the powdered perovskite precursor in an atmosphere of 1vol.% of H_(2) in Ar, at a temperature range from 1000 to 1100C and cooling the obtained perovskite of the formula BaLaMn_(2)O_(5+). The method further comprises the following steps: high energy milling of the obtained perovskite of the formula BaLaMn_(2)O_(5+) for 5 to 30 minutes, and activating of the material by consecutive isothermal oxidation/reduction at the temperature of 500C in a reducing atmosphere of H_(2) in Ar and in an oxidizing atmosphere of air.


Patent
AGH University of Science and Technology | Date: 2017-01-11

A method for executing safety-critical applications, the method comprising the steps of: providing (501) a fixed-hardware processor (101) implementing a safety critical algorithm as well as a reconfigurable circuit (103) suitable for implementing the same algorithm; providing a software implementation of the same algorithm such that it may be run as a soft-processor manner in the reconfigurable circuit (103); providing (502) a voting module (206) configured to implement at least one voting strategy taking into account results obtained from executing the fixed-hardware implementation of the algorithm as well as from executing the soft-processor implementation of the algorithm; providing a watchdog identifying runs of the algorithm that exceed predefined timing parameters wherein output of the watchdog is provided to the voting module (206); configuring the reconfigurable circuit (103) with the software implementation in order to create the soft-processor; monitoring (504) at least one input signal for the purpose of detection of an event by said fixed-hardware algorithm and said soft-processor algorithm whereas when detected, such event is processed in order to signal appropriate reaction to the event based on the output of the voting module (206).


Patent
AGH University of Science and Technology | Date: 2017-03-22

A method for indirect conversion of a voltage value to a digital word consisting in sampling an input voltage through a parallel connection of a sampling capacitor to a source of the input voltage, and next in mapping a sample value of the input voltage to a time interval, and in assignment of a corresponding value of n-bit output digital word by the use a control module characterized in that the time interval (T) is mapped to a difference of a length of a reference time (RT) and a length of a signal time (ST), while the reference time (RT) is generated from an instant (t_(1)) when the beginning of the time interval (T) is detected by the use the control module (CM), and the signal time (ST) is generated from an instant (t_(2)) when the end of the time interval (T) is detected by the use the control module (CM), whereas generation of the reference time (RT) and the signal time (ST) is terminated at the same instant (t_(3)).


Patent
AGH University of Science and Technology | Date: 2017-03-29

A method for an intelligent transportation system, the method comprising the steps of: reading (201) a vehicles geolocation and determining a direction of its movement; determining (202) the closest traffic light based on the vehicles position and direction of movement; determining (203) a distance between the vehicle and the closest traffic light; determining (204) the closest traffic lights phase and its remaining time; determining (205) a number of vehicles in the group of vehicles between the vehicle and the closest traffic light; and based on the aforementioned data, calculating (206) an optimum vehicle speed and transmitting (207) the result of this calculation to the vehicle.


Patent
AGH University of Science and Technology | Date: 2017-01-18

The hybrid robot with five degrees of freedom, comprising a base, links connected with joints and a gripper is characterized according to the invention in that it comprises two planar mechanisms (A and B), which are perpendicularly oriented in space, so that when the first planar mechanism (A) is in a horizontal plane then the second planar mechanism (B) is in a vertical plane and the first planar mechanism (A) comprises two prismatic joints, the first prismatic joint (1) and the second prismatic joint (2), running on guides, the first guide (I) and the second guide (II), and two revolute joints, the first revolute joint (a) and the second revolute joint (b) connected through the third guide (III), wherein the first revolute joint (a) is connected to the third guide (III) through the third prismatic joint (3), while the guides, the first guide (I) and second guide (II) form the base of the robot, whereas the second planar mechanism (B) enclose three prismatic joints (4, 5, 6) running on the third guide (III), wherein these prismatic joints (4, 5, 6) are connected through the link system (IV) connected by the revolute joints (c).


Patent
AGH University of Science and Technology | Date: 2017-02-15

The present invention relates to a method and device for the contactless measurement of the movement speed of the objects. In the method according to the invention the structure susceptible to magnetization is placed on the tested object by means of a transmitting system comprising the magnetic field transmitter (1), which generates the pulse magnetizing the structure to form a magnetic marker (8), and that magnetizing pulse is transmitted by a terminal (12) of the transmitter (1) to the test object at the time t_(0). In the next stage the signal from the magnetic marker is received by means of a magnetic field receiver (2) to record the time t_(2) in which the magnetic field receiver (2) receives the magnetizing signal from the marker (8), whereupon the difference between the times t_(0) and t_(2) is measured by a speed analyser (7) and the movement speed of the object is determined on the basis of the previously predetermined constant path L between the transmitter (1) and the receiver (2). At the end the demagnetization of the magnetic marker (8) is performed by a demagnetiser (4) connected to the variable magnetic field generator (9).


Patent
AGH University of Science and Technology | Date: 2017-03-15

The object of the invention is a method for the preparation of TiO_(2)-SnO_(2) nanocomposites which could be used to prepare composites with known and controlled chemical and phase composition and to control TiO_(2) particle size in composites. The process for the preparation of TiC_(2)-SnO_(2) nanocomposites is characterised in that titanium hydroxide gel obtained by the hydrolysis of titanium (IV) isopropoxide in a solution at pH 3-4 is dried at a temperature of 110-120C for 16-20 hours and subsequently calcination is conducted at a temperature of 400-560^(c)C for 1.5-2.5 hours and the resulting powder is dispersed in an NH_(4)OH solution with pH 10-11, an aqueous SnCl_(4) solution is added to the resulting solution and the reaction mixture is subjected to hydrothermal crystallisation in a three-stage temperature cycle with a temperature range of 160-180C for 25-30 hours while stirring constantly.


Patent
AGH University of Science and Technology | Date: 2017-03-15

Method for conversion of a value of an analog signal to a compressed digital word (CW) uses conversion of the analog signal to a linear digital word (LW) according to a successive approximation scheme. The process of conversion of the analog signal to the linear digital word (LW) is terminated by the compression module (CPM) when all bits of the compression word (CW) have been already evaluated. Apparatus for conversion of a value of an analog signal to a compressed digital word a linear successive approximation analog-to-digital converter (SA-ADC). The output of the linear digital word (LW) of this converter is connected to the input of the linear digital word (LW) of the compression module (CPM) comprising a section number register (RegS), while complete conversion signal output (End) of the compression module (CPM) is connected to a complete conversion signal input (End) of the linear analog-to-digital converter (SA-ADC), and a bit ready signal output (BitRdy) of the linear analog-to-digital converter (SA-ADC) is connected to a bit ready signal input (BitRdy) of the compression module (CPM).


Patent
AGH University of Science and Technology | Date: 2017-01-04

An isolated DC-DC converter configured to convert a DC input voltage into a DC output voltage, comprising an inverter configured to convert the DC input voltage into an alternating voltage, a shaping circuit configured to shape the alternating voltage and a rectifying circuit configured to rectify the shaped alternating voltage into the DC output voltage. The shaping circuit comprises an isolation module (IM), the isolation module (IM) comprising: a magnetic input circuit (MC1) comprising an input ferromagnetic core-piece (121, 131) on which there is wound an input winding (111) connected to the shaped alternating voltage; a magnetic output circuit (MC2) comprising an output ferromagnetic core-piece (123, 133) on which there is wound an output winding (113) connected to the rectifying circuit, wherein the output ferromagnetic core-piece (123, 133) is electrically isolated from the input ferromagnetic core-piece (121, 131); wherein the magnetic input circuit (MC1) is coupled with the magnetic output circuit (MC2) by a coupling winding (112) wound on the input ferromagnetic core-piece (121, 131) and on the output ferromagnetic core-piece (123, 133), wherein the distances (d1-d6) between the coupling winding (112) and the input winding (111), input ferromagnetic core-piece (121, 131), the output ferromagnetic core-piece (123, 133) and the output winding (113) are not smaller than the isolation distance; and wherein the coefficient of coupling k between the input winding (111) and the output winding (113) is less than 0.75.


In the drying and post-grinding method of pre-ground materials, in particular brown coal or coal, according to the invention the feed of the pre-ground material is supplied into the electromagnetic mill (1). Then the feed is ground in the electromagnetic mill (1) and pre-dried in the electromagnetic mill (1) with the pre-drying medium, supplied to the electromagnetic mill (1). Sequentially, the feed is supplied from the electromagnetic mill (1) on the vibrating conveyor (12) of the fume exhaust chamber (11) and is finally dried on a vibrating conveyor (12), wherein the feed is finally dried on a vibrating conveyor (12) comprising a ferromagnetic plate (13), on which magnets (14) are arranged, with the N poles directed towards the ferromagnetic plate (13), while at the S poles of the magnets (14) the feed transport plate (15) is arranged. The present invention also relates to the apparatus for the accomplishment of the above mentioned method.

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