Abstract:
A pelletizer comprises a knife head, which is mounted by a denture coupling on a rotatably drivable shaft. The denture coupling comprises at least one serrated ring mounted on the knife head and on the shaft, respectively, the serrated rings having a frontal tooth system and intermeshing. Furthermore, a chucking arrangement of the type of a collect chuck is provided for releasably locking the knife head and the shaft in the direction of their axis.
Abstract:
The method of determination of the position of a mobile receiver using at least four satellites of which at least one first satellite transmits a first signal on one frequency, the broadcasting of the first signal being single-frequency, and of which at least one second satellite transmits second and third signals respectively on a first and a second frequency, the broadcasting of the signals being two-frequency, the receiver including means for reception of at least two frequencies, makes it possible to determine the position by a calculation of at least four pseudo-distances corresponding to the distances between each satellite and the receiver. The calculation of a pseudo-distance at the first frequency includes a step of estimation of the inter-frequency bias between the first and second frequencies.
Abstract:
The presently disclosed subject matter relates to methods and compositions for identifying, selecting, and/or producing drought tolerant maize plants or germplasm. Maize plants or germplasm that have been identified, selected, and/or produced by any of the methods of the presently disclosed subject matter are also provided.
Abstract:
Method of resolving ambiguity for determining the main peak of the autocorrelation function of signals transmitted by a set of satellites and received by a receiver of a radionavigation system, a signal received originating from a satellite comprising two received spectral components right and left, the said method comprising the following steps: the right and left components received are demodulated by a BPSK demodulation method the central carrier is tracked by means of a central carrier loop which calculates estimations of central carrier phase errors so as to generate carrier commands, the code is tracked by means of a code loop which calculates instantaneous estimations of code errors so as to generate code commands, wherein the code commands are furthermore generated on the basis of instantaneous estimations of sub-carrier phase errors
Abstract:
The invention relates to a receiver of signals of a satellite-based radionavigation system intended to calculate the position of a carrier very precisely. The receiver comprises several digital signal processing channels each associated with a satellite and each providing a first digital datum representing a pseudo-distance between the receiver and the satellite in the form of an instantaneous temporal position of a pseudo-random code and a second digital datum representing this pseudo-distance in the form of an instantaneous phase of the carrier of the signal transmitted by the satellite. According to the invention, the receiver comprises an extended Kalman filter. The Kalman filter for calculates an instantaneous position of the receiver, means for calculates propagation of a state vector, calculates registration of the state vector on the basis of observations relating to each satellite and of a matrix of observations. The Kalman filter calculates observation and calculates an estimated instantaneous pseudo-distance for each satellite.
Abstract:
The invention relates to a receiver of signals of a satellite-based radionavigation system intended to calculate the position of a carrier very precisely. The receiver comprises several digital signal processing channels each associated with a satellite and each providing a first digital datum representing a pseudo-distance between the receiver and the satellite in the form of an instantaneous temporal position of a pseudo-random code and a second digital datum representing this pseudo-distance in the form of an instantaneous phase of the carrier of the signal transmitted by the satellite. According to the invention, the receiver comprises an extended Kalman filter comprising: means for calculating an instantaneous position of the receiver; means for calculating propagation of a state vector; means for calculating registration of the state vector on the basis of observations relating to each satellite and of a matrix of observations; means for calculating observations; means for calculating an estimated instantaneous pseudo-distance for each satellite.
Abstract:
The invention concerns an additive-containing ground calcined alumina used as constituent of a refractory material precursor characterized in that it comprises an organofunctional silane, the organic function being typically an epoxy function, an alkyl function, an alcohol function or a diol function. Preferably said organofunctional silane is an oxyranyl-alkyl-silane, of chemical formula C9H20O5Si. Said additive-containing alumina can be obtained by adding said organofunctional silane during grinding to take advantage of its anti-caking properties, the intimate and homogeneous mixture being obtained as a result of grinding. It may also result from a post-grinding mixing.
Abstract translation:本发明涉及用作耐火材料前体成分的含添加剂的研磨煅烧氧化铝,其特征在于其包含有机官能硅烷,有机官能团通常为环氧官能团,烷基官能团,醇官能团或二醇官能团。 优选地,所述有机官能硅烷是化学式C 9 H 20 O 5 Si的羟烷基 - 烷基硅烷。 所述含添加剂的氧化铝可以通过在研磨过程中加入所述有机官能硅烷来获得,以利用其抗结块性能,由于研磨而获得的均匀和均匀的混合物。 这也可能是由后研磨混合造成的。
Abstract:
The invention concerns a spray nozzle for a powder duster for dusting freshly printed products with a connection for a tube for supplying a powder-air mixture, a distribution chamber and at least two nozzle channels which branch off from the distribution chamber like a fan, wherein the opening angle of the outer nozzle channels limiting the fan subtends an angular range of 5° to 20°, in particular an angular range of 8° to 15°, and preferably 12°. The invention also concerns a spray bar with spray nozzles of this type, a powder duster comprising spray nozzles of this type, and a method for dusting freshly printed products.
Abstract:
The invention relates to a satellite position pinpointing receiver intended to carry out combined processing of a first received radio signal and a second received radio signal which differ in frequency. The receiver comprises: a first correlator circuit and a second correlator circuit receiving the first and second received signals respectively, each correlator having a carrier correlation channel, a code correlation channel and a code correlation channel integrator. The receiver furthermore includes: a central-carrier phase discriminator; a device, the respective local carriers for the carrier correlation channels, a code phase discriminator; and a numerically controlled oscillator, for each correlation channel. Applications: satellite radio navigation by GPS, Galileo, Glonass, etc.
Abstract:
The invention relates to satellite radionavigation, in particular satellites radionavigation of GPS (Global Positioning System), Galileo, GLONASS (Global Navigation Satellite System, Russian definition) type. The solutions advocated by the state of the art for correcting the ionospheric error through the use of a dual-frequency receiver make the measurement less robust to the dynamic if the band used is narrow and less accurate if the band used is wide. The invention proposes a process comprises step a change of reference of the dual-frequency base to a (mean, offset) base, a correction on at least the offsets loop so as to obtain the offsets speed in this (mean, offset) base, an inverse change of reference so to as calculate on the basis of the offsets speed in the (mean, offset) base the relative speed in the dual-frequency base, and a correction of the code speed for each of the two frequencies by the relative speed obtained in the dual-frequency base.