mhurhangee/patent-ind-claim-en huggingface dataset:
A wireless communication method , implemented by a wireless communication device, comprising: determining a maximum delay spread for a transmission channel ; determining a maximum Doppler frequency spread for the transmission channel ; allocating, based on the maximum delay spread and the maximum Doppler frequency spread, a set of transmission resources in a time-frequency domain to a number of pilot signals in the time-frequency domain ; wherein the pilot signals are packed within the set of transmission resources using a delay-Doppler pilot packing, wherein the delay-Doppler pilot packing comprises arranging the pilot signals in a delay-Doppler plane by keeping a distance between the pilot signals in a delay dimension larger than or equal to the maximum delay spread, and keeping a distance between the pilot signals in a Doppler dimension larger than or equal to the maximum Doppler frequency spread; generating the pilot signals by scrambling a basis signal using a two-dimensional, 2-D, chirp sequence; and transmitting, using an orthogonal time frequency space, OTFS, modulation, the pilot signals over a wireless communication channel using transmission resources of the set of transmission resources that are designated for pilot signal transmission, wherein each of the pilot signals corresponds to a delta function in a delay-Doppler domain based on applying an inverse symplectic discrete Fourier transform to the pilot signals. determining a maximum delay spread for a transmission channel ; determining a maximum Doppler frequency spread for the transmission channel ; allocating, based on the maximum delay spread and the maximum Doppler frequency spread, a set of transmission resources in a time-frequency domain to a number of pilot signals in the time-frequency domain ; wherein the pilot signals are packed within the set of transmission resources using a delay-Doppler pilot packing, wherein the delay-Doppler pilot packing comprises arranging the pilot signals in a delay-Doppler plane by keeping a distance between the pilot signals in a delay dimension larger than or equal to the maximum delay spread, and keeping a distance between the pilot signals in a Doppler dimension larger than or equal to the maximum Doppler frequency spread; generating the pilot signals by scrambling a basis signal using a two-dimensional, 2-D, chirp sequence; and transmitting, using an orthogonal time frequency space, OTFS, modulation, the pilot signals over a wireless communication channel using transmission resources of the set of transmission resources that are designated for pilot signal transmission, wherein each of the pilot signals corresponds to a delta function in a delay-Doppler domain based on applying an inverse symplectic discrete Fourier transform to the pilot signals.
Arrangement for correcting optical disturbances caused by a boundary surface in imaging flow measurement methods for measuring a flowing fluid , wherein the flowing fluid contains tracers which are designed as scattering particles, comprising - an illumination source designed to illuminate a measuring field through which the flowing fluid flows, wherein a stationary optical pattern is arranged in the measuring field; - at least one camera designed to record the flow pattern as an image of the light scattered by the tracers in the flowing fluid and to record the pattern image as an image of the light scattered by the stationary pattern , wherein the illumination source and/or the at least one camera are arranged such that the illumination and/or the observation of the flowing fluid and the pattern takes place through the boundary surface ; - a controllable wavefront modulator which is arranged in the optical path between the measuring field and the camera or in the optical path between the illumination source and the measuring field or in the optical path between the illumination source and the measuring field and between the measuring field and the camera ; - a signal processing platform which is designed to evaluate at least the pattern image, wherein the pattern image is compared with the pattern to determine a quality factor of the image, and to control the wavefront modulator with respect to its orientation, wherein the wavefront modulator is oriented in such a way that the quality factor is iteratively optimised. - an illumination source designed to illuminate a measuring field through which the flowing fluid flows, wherein a stationary optical pattern is arranged in the measuring field; - at least one camera designed to record the flow pattern as an image of the light scattered by the tracers in the flowing fluid and to record the pattern image as an image of the light scattered by the stationary pattern , wherein the illumination source and/or the at least one camera are arranged such that the illumination and/or the observation of the flowing fluid and the pattern takes place through the boundary surface ; - a controllable wavefront modulator which is arranged in the optical path between the measuring field and the camera or in the optical path between the illumination source and the measuring field or in the optical path between the illumination source and the measuring field and between the measuring field and the camera ; - a signal processing platform which is designed to evaluate at least the pattern image, wherein the pattern image is compared with the pattern to determine a quality factor of the image, and to control the wavefront modulator with respect to its orientation, wherein the wavefront modulator is oriented in such a way that the quality factor is iteratively optimised.
A mechanical telemanipulator for remote manipulation comprising: a slave manipulator having a number of slave links interconnected by a plurality of slave joints ; an end-effector connected to the distal end of the slave manipulator; a master manipulator having a corresponding number of master links interconnected by a plurality of master joints ; a handle connected to the distal end of the master manipulator for operating the mechanical telemanipulator; first mechanical transmission means arranged to kinematically connect the slave manipulator with the master manipulator such that the movement applied on each master joint of the master unit is reproduced by the corresponding slave joint of the slave manipulator; second mechanical transmission means arranged to kinematically connect the end-effector with the handle such that the movements applied on the handle are reproduced by the end-effector; at least one mechanical constraint applied on a link of the master manipulator so that the link is guided to translate along and rotate about a stationary single point when the mechanical telemanipulator is operated; wherein the proximal ends of the slave and master manipulator being connected to a first ground; and characterized by an articulated system fixed to either the first ground or a second ground, the articulated system having at least one degree-of-freedom and comprising at least one moving link; and the at least one mechanical constraint being mounted on the articulated system so that the at least one mechanical constraint is movable relative to the first ground. a slave manipulator having a number of slave links interconnected by a plurality of slave joints ; an end-effector connected to the distal end of the slave manipulator; a master manipulator having a corresponding number of master links interconnected by a plurality of master joints ; a handle connected to the distal end of the master manipulator for operating the mechanical telemanipulator; first mechanical transmission means arranged to kinematically connect the slave manipulator with the master manipulator such that the movement applied on each master joint of the master unit is reproduced by the corresponding slave joint of the slave manipulator; second mechanical transmission means arranged to kinematically connect the end-effector with the handle such that the movements applied on the handle are reproduced by the end-effector; at least one mechanical constraint applied on a link of the master manipulator so that the link is guided to translate along and rotate about a stationary single point when the mechanical telemanipulator is operated; wherein the proximal ends of the slave and master manipulator being connected to a first ground; and characterized by an articulated system fixed to either the first ground or a second ground, the articulated system having at least one degree-of-freedom and comprising at least one moving link; and the at least one mechanical constraint being mounted on the articulated system so that the at least one mechanical constraint is movable relative to the first ground.
Cooking hob having: - a hob plate , - heating devices under the hob plate , - a flat carrier plate for the heating devices , the carrier plate : - being flat, - running parallel to the hob plate , - having an upper side, - carries the heating devices on the upper side and holds them in a fixed position, - holding means on the upper side of the carrier plate for each heating device , wherein: - each heating device has at least one laterally projecting holding tab , - each holding lug has latching means , - the holding means have counter latching means for a latching connection with the latching means of the holding lug , characterized in that - the holding means are attached to the upper side of the carrier plate with a releasable attachment in the direction perpendicular to the surface of the carrier plate and with a form fit in the direction parallel to the surface of the carrier plate , - the holding tab extends over the carrier plate , - the latching means on the holding tabs are designed as a latching opening having at least one latching edge , - the holding means have at least one latching hook projecting upwards or perpendicularly to the surface of the carrier plate as counter-latching means, - a hob plate , - heating devices under the hob plate , - a flat carrier plate for the heating devices , the carrier plate : - being flat, - running parallel to the hob plate , - having an upper side, - carries the heating devices on the upper side and holds them in a fixed position, - being flat, - running parallel to the hob plate , - having an upper side, - carries the heating devices on the upper side and holds them in a fixed position, - holding means on the upper side of the carrier plate for each heating device , - each heating device has at least one laterally projecting holding tab , - each holding lug has latching means , - the holding means have counter latching means for a latching connection with the latching means of the holding lug , - the holding means are attached to the upper side of the carrier plate with a releasable attachment in the direction perpendicular to the surface of the carrier plate and with a form fit in the direction parallel to the surface of the carrier plate , - the holding tab extends over the carrier plate , - the latching means on the holding tabs are designed as a latching opening having at least one latching edge , - the holding means have at least one latching hook projecting upwards or perpendicularly to the surface of the carrier plate as counter-latching means,
A composition comprising a crystalline form of L-ornithine phenylacetate, wherein said crystalline form exhibits an X-ray powder diffraction pattern comprising at least three characteristic peaks, wherein said characteristic peaks are selected from the group consisting of 4.9°±0.2° 2θ, 13.2°±0.2° 2θ, 17.4°±0.2° 2θ, 20.8°±0.2° 2θ and 24.4°±0.2° 2θ.
A room temperature curable composition which comprises (A) 100 parts by mass of an organosiloxane polymer which is having an alkoxysilyl-ethylene group at its terminal and represented by the following formulae or , wherein R represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 20 carbon atoms which may have a substituent; each R may be the same or different from each other; "m"' represents an integer of 0 to 2,000, parts of a repeating unit of the siloxane bond may be crosslinked to form a branched chain structure; R 1 represents an alkyl group having 1 to 20 carbon atoms which may have a substituent, and those having 3 or more carbon atoms among the alkyl groups may be a cycloalkyl group which is cyclic; R 2 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 20 carbon atoms which may have a substituent; "a" represents an integer of 1 to 3, and "m"" represents an integer of 1 to 100, and m'+m" is a number which makes the viscosity of the diorganopolysiloxane at 25°C of 10 to 1,000,000 mPa·s, the viscosity being measured by a rotary viscometer, (B) 0.001 to 15 parts by mass of a curing catalyst, (C) 0 to 30 parts by mass of a silane compound and/or an organosiloxane polymer having at least 2 remaining alkoxy groups or alkoxy-substituted alkoxy groups in the molecule, which is formed by partially hydrolyzing and condensing the silane compound, (D) 0 to 1,000 parts by mass of a filler, and (E) 0 to 30 parts by mass of an adhesion promoter. (A) 100 parts by mass of an organosiloxane polymer which is having an alkoxysilyl-ethylene group at its terminal and represented by the following formulae or , wherein R represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 20 carbon atoms which may have a substituent; each R may be the same or different from each other; "m"' represents an integer of 0 to 2,000, parts of a repeating unit of the siloxane bond may be crosslinked to form a branched chain structure; R 1 represents an alkyl group having 1 to 20 carbon atoms which may have a substituent, and those having 3 or more carbon atoms among the alkyl groups may be a cycloalkyl group which is cyclic; R 2 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 20 carbon atoms which may have a substituent; "a" represents an integer of 1 to 3, and "m"" represents an integer of 1 to 100, and m'+m" is a number which makes the viscosity of the diorganopolysiloxane at 25°C of 10 to 1,000,000 mPa·s, the viscosity being measured by a rotary viscometer, (B) 0.001 to 15 parts by mass of a curing catalyst, (C) 0 to 30 parts by mass of a silane compound and/or an organosiloxane polymer having at least 2 remaining alkoxy groups or alkoxy-substituted alkoxy groups in the molecule, which is formed by partially hydrolyzing and condensing the silane compound, (D) 0 to 1,000 parts by mass of a filler, and (E) 0 to 30 parts by mass of an adhesion promoter.
A folding wheel chock comprising: - a stop ramp having a front face shaped to be interfaced with a vehicle wheel, extending from a first support base to a first vertex , - a support wall , extending from a second support base to a second vertex , - wherein the stop ramp and the support wall are hinged by at least one pivot pin at the respective first and second vertexes so that they can rotate between a configuration of use, in which the stop ramp and the support wall form a wedge or bridge-shaped structure tapering towards the pivot pin , and a non-use or resting configuration in which the stop ramp and the support wall are arranged mutually parallel, wherein - at the second vertex , the support wall has at least one abutment shaped to create a limit stop and a support against a corresponding stop of the stop ramp , opposite to said front face , - wherein the second support base comprises a fastening element to the ground, which protrudes at least partially from the second support base to promote the blocking of the support wall to the ground, - characterized in that the chock comprises a tip which acts as a portion of the first interface with the vehicle wheel, said tip being associated with the stop ramp at the first support base thereof and being movable from an extracted or working configuration, in which it protrudes towards the associable wheel as an extension of the stop ramp, on the side opposite to the support wall , to a retracted or resting configuration in which it is arranged at least partially folded or aligned on the stop ramp and/or the support wall . - a stop ramp having a front face shaped to be interfaced with a vehicle wheel, extending from a first support base to a first vertex , - a support wall , extending from a second support base to a second vertex , - wherein the stop ramp and the support wall are hinged by at least one pivot pin at the respective first and second vertexes so that they can rotate between a configuration of use, in which the stop ramp and the support wall form a wedge or bridge-shaped structure tapering towards the pivot pin , and a non-use or resting configuration in which the stop ramp and the support wall are arranged mutually parallel, - at the second vertex , the support wall has at least one abutment shaped to create a limit stop and a support against a corresponding stop of the stop ramp , opposite to said front face , - wherein the second support base comprises a fastening element to the ground, which protrudes at least partially from the second support base to promote the blocking of the support wall to the ground, - characterized in that the chock comprises a tip which acts as a portion of the first interface with the vehicle wheel, said tip being associated with the stop ramp at the first support base thereof and being movable from an extracted or working configuration, in which it protrudes towards the associable wheel as an extension of the stop ramp, on the side opposite to the support wall , to a retracted or resting configuration in which it is arranged at least partially folded or aligned on the stop ramp and/or the support wall .
A snow-accumulation-preventing and flow guide device for a bogie, comprising a driving mechanism, and a first flow guide plate , a second flow guide plate and a third flow guide plate which are sequentially connected in a length direction of a vehicle body; two sides of the first flow guide plate , of the second flow guide plate and of the third flow guide plate are connected by means of extending-retracting portions , a top sealing plate is mounted on tops of the first flow guide plate and the third flow guide plate , the first flow guide plate , the second flow guide plate , the third flow guide plate , the extending-retracting portions at two sides and the top sealing plate together enclose a sealed cavity, top ends of the first flow guide plate and the third flow guide plate are configured to be rotatable around fixed points, the fixed points are provided on the top sealing plate or the vehicle body, a bottom end of the first flow guide plate is rotatably connected to the second flow guide plate , the second flow guide plate and the third flow guide plate can be connected to each other in a telescopic and slidable manner, and the driving mechanism drives the first flow guide plate and the second flow guide plate and a third flow guide plate to extend and open in a rail direction or retract and close in a direction of the vehicle body.
Sealing ring of a mechanical seal, having a sealing face in which at least one conveying structure is provided, which has at least one inflow channel and at least one outflow channel , the inflow channel being connected to a Medium side to be sealed, which is separated from a leakage side by the sealing ring and the outflow channel is not connected to the Medium side to be sealed and the inflow channel is not connected to the leakage side , characterised in that the outflow channel is without connection to the leakage side .
Heatable fluid line , comprising a pipe that has an inner space , and a heating device arranged in the inner space , a volume reduction element being arranged between the pipe and the heating device for reducing the volume in an annular gap between the pipe and the heating device , characterised in that the volume reduction element has a recess extending along the heating device and is constructed as a pipe section with an internal cross-section and has a jacket that has a parting line in the longitudinal direction, and wherein the heating device is constructed as a heating rod and the volume reduction element is clipped onto the heating rod .
Hammer device , in particular a hand-held hammer device , comprising a tool and comprising an impact mechanism which is designed to be able have an impacting effect on the tool in the axial direction (A), characterized by at least one impact force storage means which is designed to at least partially store an impact force of the impact mechanism in the axial direction (A) and to at least partially release it again as an impact force in the counter-axial direction (B), the impact force storage means being designed to be elastically restoring, and the tool having a tool end which points away from the hammer device in the axial direction (A) and is designed to transfer the impact force of the impact mechanism at least partially in the counter-axial direction (B) to a body to be machined. an impact mechanism which is designed to be able have an impacting effect on the tool in the axial direction (A), characterized by at least one impact force storage means which is designed to at least partially store an impact force of the impact mechanism in the axial direction (A) and to at least partially release it again as an impact force in the counter-axial direction (B), the impact force storage means being designed to be elastically restoring, and the tool having a tool end which points away from the hammer device in the axial direction (A) and is designed to transfer the impact force of the impact mechanism at least partially in the counter-axial direction (B) to a body to be machined.