Abstract: Perfuming ingredients which include at least one macrolide of formula ##STR1## having a double bond in one of the positions indicated by the dotted lines and wherein the symbol R represents a hydrogen atom or a methyl radical, are described. They are useful for the preparation of perfumes and perfumed consumer products to which they impart musky odors with original nuances.

Abstract: Described herein are compounds of the formula ##STR1## wherein R represents a hydrogen atom or a methyl radical and X stands for a --CHO, or a --CN group, are useful as perfuming ingredients for preparing perfuming compositions and a variety of perfumed articles, to which they impart sandalwood-type odor notes, together with marine, ozone type odor characters, such that said compositions and articles thus acquire a "transparent" connotation. The aldehydes of formula (I) are also useful as starting products for the preparation of the corresponding fragrant alcohols and nitriles.

Abstract: We describe the use of substituted (3H)-benzo?b!furan-2-ones, namely with alkyl groups, for the preparation of perfuming compositions and perfumed articles, to which these compounds impart odor notes of the lactonic, coumarinic and fruity, or yet musky, type.

Abstract: Aminoplastic resin based on one or more amino derivatives and one or more aldehydes in which the amino derivative is melamine, glycoluril or their mixture in variable proportions and that the aldehyde is a product of formula (I) R--CHO where R=a dialkoxymethyl, 1,3-dioxolan 2-yl group optionally substituted on the vertex 4 and/or 5 by one or more alkyl groups or a 1,3-dioxan 2-yl group optionally substituted on vertices 4, 5 and/or 6 by one or more alkyl groups, optionally mixed with glyoxal, preparation process and use as a crosslinking agent for cellulose.

Abstract: 3-(2,2-Dimethyl-propyl)-pyridine is used to impart, improve or modify the odor properties of a variety of consumer products. In particular, it develops fruity-fresh type notes.

Abstract: The compounds of formulaa. ##STR1## wherein symbol X represents a --CHO group or a group of formula ##STR2## in which symbols R', taken separately, represent each a C.sub.1 to C.sub.4, linear or branched, saturated or unsaturated alkyl radical, or taken together represent a substituted or unsubstituted C.sub.2 to C.sub.4 alkylene radical; symbol R.sup.2 represents a hydrogen atom or a methyl radical; and R.sup.1 and R.sup.3 are different and represent each a hydrogen atom or a methyl radical;or of formulab. ##STR3## wherein the tert-butyl radical is located in position 5 or 6 of the aromatic ring and, either Y represents hydrogen and X and R.sup.2 have the meaning indicated above, or X and R.sup.2 represent each a hydrogen atom and Y represents a --CH.sub.2 CHO group or a group of formula ##STR4## in which R' is defined as in a.; or of formulac. ##STR5## wherein X and R.sup.

Abstract: (1RS,5RS)-5-Methyl-exo-tricyclo[6.2.1.0.sup.2,7 ]undecan-4-one, as well as the compositions which contain a preponderant amount of this compound together with its isomer (1RS,5SR)-5-methyl-exo-tricyclo[6.2.1.0.sup.2,7 ]undecan-4-one, are useful as perfuming ingredients for the preparation of perfuming compositions and perfumed articles, to which they impart aromatic, thujonic and herbaceous odors.

Abstract: 1,3-Undecadien-5-yne and its (E) and (Z) configuration isomers are useful perfuming ingredients for the preparation of perfuming bases and a variety of perfumed consumer products, to which they impart odor characters of the galbanum, floral, fruity-citrus type.

Abstract: We disclose a novel nitrile, i.e. 5,6,7,8-tetrahydro-3,5,5,6,7,8,8-heptamethyl-2-naphthalenecarbonitrile, a perfuming ingredient having a musky, earthy odor, and which is remarkably stable in particularly aggressive media such as for instance antiperspirant bases. This compound may present itself as a racemate or in the form of one of its optically active isomers.Said isomers can be obtained from aldehydes, namely (-)-(6S,7S) and (+)-(6R,7R)-5,6,7,8-tetrahydro-3,5,5,6,7,8,8-heptamethyl-2-naphtalenecarba ldehyde, which aldehydes are not only useful as starting products for the preparation of the corresponding nitriles, but also as perfuming ingredients.

Abstract: The chiral isomers of 3,3-dimethyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-2-ol and, more particularly, the (-)-(1'R,2S,E)-3,3-dimethyl-5-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl)-4- penten-2-ol and (+)-(1'S,2S,E)-3,3-dimethyl-5-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl)-4- penten-2-ol, are useful as perfuming ingredients to impart sandalwood type odor notes to the perfuming compositions and perfumed articles into which they are incorporated.

Abstract: Parallel processing method in a telecommunication equipment including a Digital Signal Processing system (202) associated with some RAM storage. The telecommunication equipment receives bit streams transporting HDLC/SDLC frames. For receiving bit streams the method involves the steps of building at least one table providing the `0` deletion and character alignment functions required in the HDLC/SDLC management procedures, receiving the incoming bit stream and assembling samples of n consecutive bits therefrom to be processed in parallel, and using said assembled n consecutive bits as addressing elements for accessing said at least one table in order to derive a character corresponding to data to be extracted from the HDLC frame.

Abstract: A Decimation filter for converting a train of sigma-delta pulses S(i) in synchronism with a sigma-delta clock (fs) into a train of Pulse Coded Modulation (PCM) samples in accordance with the formula ##EQU1## where Cn is the sequence of the coefficients of the decimation filter which corresponds to a determined decimation factor, and the PCM samples being processed by a Digital Signal Processor (DSP). The decimation filter includes a device for storing a digital value representative of the DC component introduced during the sigma-delta coding process, with the digital value being computing by the DSP processor during an initialization phase. The decimation filter further includes a device operating after the latter initialization phase for subtracting the stored digital value from each of the PCM samples so that the resulting sequence of PCM samples appears free of any DC component introduced during the sigma-delta coding.

Abstract: Process and use of decahydro pyrazino [2,3-b] pyrazine for the reduction of the proportion of free or combined hydrogen sulphide present in a fluid.

Abstract: A method for controlling a valve including a direct current motor acting upon an aperture adjusting part (3) against the force of elastic means (11) biasing the aperture adjusting part towards a zero flow rest position, comprising the steps of: selecting a desired valve aperture; determining a time interval (T.sub.a) as a function of the desired valve aperture; supplying the motor with a first constant current of a sufficient value for rotating the motor, during the mentioned time interval; supplying the motor with a second constant low value current thereafter until a next valve aperture is selected, this low value current being sufficient to hold the motor in its position against the force of the elastic means.

Abstract: Substituted succinimides of formula (I) ##STR1## in which R represents an alkyl radical containing 5 to 15 carbon atoms and R.sub.1 represents an oxo-2 morpholino radical or a (carboxymethyl)(hydroxy-2 ethyl) amino radical and their salts, and use for obtaining concentrates intended for metal-working, particularly for combatting corrosion.

Abstract: Diallyloxyacetic acid and its basic addition salts, their preparation process and their application as cross-linking agents.Diallyloxyacetic acid and its basic addition salts, preparation process and application as cross-linking agents.

Abstract: Multiple operating configurations in data circuit terminating equipment (DCE) are enabled through multiple queues stored in a random access memory and which are loaded with bits and characters coming either from data terminating equipment (DTE) or the telecommunications line. The DSP processor stores bits provided by a transmit circuit in a first queue, determines characters from the bits stored in the first queue based on a first transmission protocol and stores the characters in a second queue. A third queue is used by a control processor to store characters to be transmitted to a remote DCE. The DSP processor determines bits to be transmitted from the characters stored in a third queue based on a second transmission protocol, and stores those bits in a fourth queue. When the DCE is operating in a synchronous mode, the DSP processor determines PCM words for transmission based on the contents of the second queue and stores them in a fifth queue for transmission.

Abstract: 3-Methyl-cyclopentadec-5-en-1-one and its cis- and transconfiguration isomers are useful as perfuming ingredients, for the preparation of perfuming compositions and perfumed articles to which they impart musky notes characteristic of nitro-musks.

Abstract: A decimation filter for converting a received train of sigma-delta pulses in synchronism with a sigma-delta clock (fs) into a train of Pulse Code Modulation (PCM) samples having a PCM clock in accordance with the formula ##EQU1## includes a computer for computing one PCM sample from a sequence of sigma-delta samples in synchronism with the PCM clock and also a comparison circuit for determining whether phase correction of the PCM clock is necessary to lock the generation of the PCM samples on the sigma-delta clock extracted from the received sigma-delta signal, the decimation filter including shifters which shift the computation process at least one sigma-delta clock pulse in order to provide phase control in the generation of the PCM samples.

Abstract: Data Circuit Terminating Equipment (DCE) allows the connection of a Data Terminal Equipment (DTE) to a telecommunication line. The DCE includes timing elements for providing the DTE with any desired transmitter signal element timing and any desired receiver signal element timing. The timing elements include processing elements for computing a sequence of digital values A(n) and for deriving therefrom a corresponding sequence of interrupt signals T(n). The receiver signal element timing, the transmitter signal element timing, the transmit sampling clock pulsing the D/A converter and the receive sampling clock pulsing the A/D converter are all controlled by different sequences of digital values computed by the processing elements.