Abstract: The invention relates to a method for mutually adhering a first moulded article of an at least partially vulcanized rubber polymer and a second moulded article of a polymer. The method comprises at least the steps of providing a first moulded article of a rubber polymer which comprises a compound containing carboxylic acid anhydride; providing a second moulded article of a polymer; providing an adhesive composition comprising at least a polyisocyanate, a polyol and a catalyst; arranging an adhesive layer of the adhesive composition on the surface for adhesion of at least one moulded article; bringing the surfaces for adhesion together under pressure; and polymerizing at least the adhesive layer at a suitable temperature.

Abstract: A motor vehicle front spoiler has a spoiler lip (11) extending in the region of a front part of the motor vehicle over the entire width or part of the width of the front part. An actuating element (12) enables the spoiler lip (11) to be shifted between an extended operating position, in which the spoiler lip (11) forms a downwardly directed extension of the front part and acts as an aerodynamic air-guiding device, and a retracted inoperative position, in which the spoiler lip (11) is directed to the rear and essentially has no aerodynamic air-guiding effect. A portion (13) of the spoiler lip (11) that is at the bottom in the operating position of the spoiler lip (11) and is in the vicinity of the roadway can be replaced.

Abstract: The invention relates to a method of manufacturing a tire having a colored sidewall. The method comprises disposing a strip of a colored rubber compound circumferentially about the external surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the strip exposed to direct contact with the mold, providing the mold with circumferential recesses at both sides of the rubber strip and letting the strip slightly overlap with the recesses in the radial direction of the tire, curing the tire whereby circumferential side parts of the strip flow into the recesses to form circumferential protrusions in the strip, removing the tire from the mold, and removing the protrusions at least partially. The invention further relates to a tire obtained with the method.

Abstract: The invention relates to a polymer composition comprising a matrix polymer, silica particles dispersed therein, and a coupling agent and a screening agent for the silica particles, and is characterized in that the screening agent is an alkylamine compound. The polymer composition is particularly suitable for the manufacture of rubber tires with improved rolling resistance.

Abstract: A motor vehicle front spoiler has a spoiler lip (11) extending in the region of a front part of the motor vehicle over the entire width or part of the width of the front part. An actuating element (12) enables the spoiler lip (11) to be shifted between an extended operating position, in which the spoiler lip (11) forms a downwardly directed extension of the front part and acts as an aerodynamic air-guiding device, and a retracted inoperative position, in which the spoiler lip (11) is directed to the rear and essentially has no aerodynamic air-guiding effect. A portion (13) of the spoiler lip (11) that is at the bottom in the operating position of the spoiler lip (11) and is in the vicinity of the roadway can be replaced.

Abstract: An exemplary method for set retarding the surface of a mortar or concrete material, comprising applying to the surface of a mortar or concrete, or to the inner surface of a mold for forming the mortar or concrete, a hot melt coating composition which is heated to assume a flowable or sprayable form, and allowing the hot melt coating composition to cool to ambient temperature whereby the composition forms a solidified membrane, and thereafter removing the membrane. Preferably, the hot melt coating composition contains at least one agent operative to retard the setting of the mortar or concrete, and optional finely divided particulate materials, light-reflective pigments, or mixtures thereof.

Abstract: Provided is a method and system for increasing cyclic prefix and cyclic suffix based upon a fast Fourier transform (FFT) and inverse fast Fourier transform (IFFT). The method includes representing at least one of the one or more DMT symbols in frequency domain to produce a frequency domain representation. The frequency domain representation corresponds to a quadrature amplitude modulation (QAM) constellation. Next the QAM constellation is rotated in the frequency domain by changing a characteristic of the DMT symbol as a function of tone index (k), cyclic extension length (CE), inverse fast fourier transform (IFFT) size (N), and pi. Finally, a number of extended symbols are produced to represent the DMT symbol based upon the rotating.

Abstract: The invention relates to a polymer composition comprising a matrix polymer, silica particles dispersed therein, and a coupling agent and a screening agent for the silica particles, and is characterized in that the screening agent is an alkylamine compound. The polymer composition is particularly suitable for the manufacture of rubber tyres with improved rolling resistance.

Abstract: The invention relates to a method for mutually adhering moulded articles of at least partially vulcanized rubber polymers. The method comprises at least the steps of providing a rubber composition which comprises a peroxide with an initiating temperature lower than the vulcanization temperature of at least one of the rubber polymers; arranging an adhesive layer of the rubber composition on the surface of the moulded articles which is to be adhered; bringing the surfaces for adhering together under pressure; and vulcanizing at least the adhesive layer at an increased temperature.

Abstract: The invention relates to a method for manufacturing a moulded article from a first rubber polymer, which moulded article comprises an insert from a second rubber polymer The method comprises at least the steps of providing a vulcanizing mould with mounting means for the insert, arranging an at least partially vulcanized insert in the vulcanizing mould using the mounting means, adding the first rubber polymer to the vulcanizing mould in unvulcanized state and vulcanizing the moulded article at a suitable vulcanization temperature and subsequently removing the moulded article, with the proviso that prior to step C) at least that side of the insert which comes into contact with the first rubber polymer during step C) is provided with a reactive mixture comprising free radicals. The method is particularly suitable for the manufacture of rubber tyres and spoilers with a coloured insert.

Abstract: The invention relates to a method for mutually adhering a first moulded article of an at least partially vulcanized rubber polymer and a second moulded article of a polymer. The method comprises at least the steps of providing a first moulded article of a rubber polymer which comprises a compound containing carboxylic acid anhydride; providing a second moulded article of a polymer; providing an adhesive composition comprising at least a polyisocyanate, a polyol and a catalyst; arranging an adhesive layer of the adhesive composition on the surface for adhesion of at least one moulded article; bringing the surfaces for adhesion together under pressure; and polymerizing at least the adhesive layer at a suitable temperature.

Abstract: An exemplary method for set retarding the surface of a mortar or concrete material, comprising applying to the surface of a mortar or concrete, or to the inner surface of a mold for forming the mortar or concrete, a hot melt coating composition which is heated to assume a flowable or sprayable form, and allowing the hot melt coating composition to cool to ambient temperature whereby the composition forms a solidified membrane, and thereafter removing the membrane. Preferably, the hot melt coating composition contains at least one agent operative to retard the setting of the mortar or concrete, and optional finely divided particulate materials, light-reflective pigments, or mixtures thereof.

Abstract: To generate a pseudo-random sequence of multi-carrier data symbols, a pseudo-random bit sequence is produced by repetitively generating a pseudo-random sequence of L bits, L being a first integer value. To create a multi-carrier data symbol, N bits are used, N being a second integer value. The pseudo-random bit sequence is subdivided into strings of N? bits, N? being a third integer value larger than N, and N bits out of each string of N? bits are used to generate a respective multi-carrier data symbol. N?-N bits out of each string of N? bits are left unused.

Abstract: In a multi-carrier system, the carriers (f0 . . . f511, f512 . . . f1023, . . . , f3584 . . . f4095) are grouped in subsets (SUBSET1; SUBSET2; . . . ; SUBSET8). A constellation information transmitting arrangement (BiGi_TA), for instance located in the multi-carrier receiver (RX), produces for each carrier subset (SUBSET1; SUBSET2; . . . ; SUBSET8) a limited set of parameter values (B1, G1; B2, G2; . . . ; B8, G8) and transmits these sets of parameter values (B1, G1; B2, G2; . . . ; B8, G8) to a constellation information receiving arrangement (BiGi_RA), for instance located in the multi-carrier transmitter (TX). Through interpolation of the limited set of parameter values (B1, G1; B2, G2; . . . ; B8, G8) the latter constellation information receiving arrangement (BiGi_RA) determines the constellation where each carrier (f0 . . . f511, f512 . . . f1023, . . . , f3584 . . . f4095) of a carrier subset (SUBSET1; SUBSET2; . . . ; SUBSET8) will be modulated with.

Abstract: The invention relates to a method to synchronise a multi-carrier transmission system wherein a time misalignment between a transmitter and a receiver is determined through an average of at least two pilot tones phase errors (Øi) weighted in accordance with the noise affecting each pilot tone transmission. Such method is characterised in that, when the noise affecting a pilot tone (38, 40) reaches a predetermined level, the pilot tone function is reallocated from this pilot tone (38, 40) to another carrier (42, 44) and/or this pilot tone weight is reduced.

Abstract: Provided is a method and system for increasing cyclic prefix and cyclic suffix based upon a fast Fourier transform (FFT) and inverse fast Fourier transform (IFFT). The method includes representing at least one of the one or more DMT symbols in frequency domain to produce a frequency domain representation. The frequency domain representation corresponds to a quadrature amplitude modulation (QAM) constellation. Next the QAM constellation is rotated in the frequency domain by changing a characteristic of the DMT symbol as a function of tone index (k), cyclic extension length (CE), inverse fast fourier transform (IFFT) size (N), and pi. Finally, a number of extended symbols are produced to represent the DMT symbol based upon the rotating.

Abstract: Surface retarder compositions of the invention comprise at least one surface retarder active suspended in a vegatable oil or derivative thereof, an animal oil or derivative thereof, or mixtures thereof. Methods involving use of the compositions are also described.

Abstract: To generate a pseudo-random sequence (PRMS1) of multi-carrier data symbols (DMT0, DMT1, DMT2), a pseudo-random bit sequence (PRBS1) is produced by repetitively generating a pseudo-random sequence of L bits, L being a first integer value (L=4). To create a multi-carrier data symbol (DMT0, DMT1, DMT2) N bits are used, N being a second integer value (N=8). The pseudo-random bit sequence (PRBS1) is subdivided into strings of N? bits, N? being a third integer value larger than N (N?=9), and N bits out of each string of N? bits are used to generate a respective multi-carrier data symbol (DMT0, DMT1, DMT2). N?-N bits out of each string of N? bits are left unused.

Abstract: To generate a pseudo-random sequence of multi-carrier data symbols, a pseudo-random bit sequence is produced by repetitively generating a pseudo-random sequence of L bits, L being a first integer value. To create a multi-carrier data symbol, N bits are used, N being a second integer value. The pseudo-random bit sequence is subdivided into strings of N? bits, N? being a third integer value larger than N, and N bits out of each string of N? bits are used to generate a respective multi-carrier data symbol. N?-N bits out of each string of N? bits are left unused.

Abstract: A multi-carrier receiver selects antennas (A31, A32), i.e. carriers whereto a small amount of power and data is allocated, for estimation of characteristics of a narrowband disturber (RFI-Signal-3) in the Radio Frequency Interference band (RFI-Band), a predetermined band for e.g. radio amateur transmission. These antennas (A31, A32) can be selected amongst all carriers located inside the Radio Frequency Interference band (RFI-Band) and at least two carriers (C1, C2) located outside the Radio Frequency Interference band (RFI-Band).