摘要:
The invention relates to a method for allocating at least one identifier known as routing identifier to at least one bridge of a network, the bridge comprising at least two interconnection equipment a first of which is connected to at least one first part of the said network, characterized in that each one of the interconnection equipment of the said bridge being in a “state” determined by reference to the allocation of an identifier to this interconnection equipment, the method includes the steps of determination of at least one “state” which corresponds to the “state” of the at least one second interconnection equipment of the bridge, and deciding as to the allocation of an identifier to the at least one first interconnection equipment of the bridge as a function of the at least one determined “state”.
摘要:
The invention relates to aqueous suspensions of precipitated silica and of aluminum sulphate which have a pH lower than 4 and a solids content of between 10 and 50% by weight and which, after a period at rest of 48 hours, are in the form of a gel. The gel is reversible under low shear. The invention also relates to processes for the preparation of these suspensions and to their uses, especially in the field of cement mixes, mortars and concretes.
摘要:
The invention relates to a self-levelling fluid mortar including calcium sulphate, granulates, lime, water and either a silica and a compound containing alumina or a pozzuolana, and to a screed obtained from said fluid mortar. It also relates to the combined use of lime and either of a silica and of a compound containing alumina or a pozzuolana to increase the mechanical strength and reduce the water sensitivity of a screed.
摘要:
A process for spraying concrete or mortar, by a dry route or by a wet route, in order to produce on a surface a layer of concrete or of mortar. Just before or at the time of spraying, an aqueous suspension (A) of silica and of an aluminum compound chosen from aluminum sulphate, basic aluminum sulphates, alums and mixtures thereof is added to the concrete or mortar. The aqueous suspension (A) has a pH lower than 4, a solids content of between 10 and 50% by weight, and, after a period at rest of 48 hours, is in the form of a gel which is reversible under low shear. The aqueous suspension (A) is effective for increasing the thickness of the sprayed layer and reducing rebound of the concrete or mortar sprayed onto the surface.
摘要:
The invention relates to a gel made of apolar medium including:an apolar medium,a "multichain" liquid surface-active agent in acidic form, soluble or dispersible in the said apolar medium,an agent for neutralizing the said "multichain" surface-active agent,from 0.2 to 5 molecules of water per molecule of "multichain" surface-active agent,optionally at least one emulsifying agent and/or a solid filler which is soluble or insoluble in the apolar medium.This gel may be employed for the formulation of water-based drilling fluids.
摘要:
Novel aluminum phosphates, in particular amorphous aluminum phosphate powders having a BET specific surface no greater than 25 m.sup.2 /g, well suited as binders/hardeners or for the production of ceramic shaped articles, are prepared by reacting at least one aluminum compound, e.g., an aluminum oxide, hydroxide or oxyhydroxide, with phosphoric acid or an aluminum phosphate, e.g., an acid aluminum orthophosphate, in a liquid reaction medium devoid of inorganic acid anions other than of phosphoric acid, and then spray- or freeze-drying the suspension thus obtained.
摘要:
A method of transmission of at least one data content by a source node associated with a generator application to at least one destination node, each associated with a consumer application, in a communications network comprising a plurality of nodes, each being associated with an application, the network implementing a first clocking which defines a first cycle, called a network cycle, for data transmission on said network.Each node of the network implements a second clocking which defines a second cycle, called a local cycle, for data transmission between the node of the network and its associated application, the network cycle being equal to an integer multiple P, P≧1, of the local cycle, the start of the network cycle coinciding with the start of a local cycle, the local cycle comprising a plurality of virtual channels corresponding to time slots, a set of the virtual channels being assigned to the transmission of the content or contents.
摘要:
A method for insertion of information for control of broadcasting of a data stream in a heterogeneous network, the network including an entry sub-network conveying first packets and a basic network conveying second packets. The sub-network is connected to the basic network by an entry node forming the second packets. The node receives first packets from the sub-network, associates an access level with each first packet from a plurality of access levels, as a function of a predetermined policy of association, forms each second packet by enclosing at least a first packet or part thereof into the second packet, the enclosed first packets or part thereof being associated with a same access level, for each second packet, inserts, into a field of the second packet representing the broadcast control information, the same access level, and transmits the formed second packets into the basic network.
摘要:
The communication method concerns a network having communication devices each adapted to determine, for each item of information to be transmitted, the path to a cause it to follow on the network, and a transmission mode, connected or non-connected. It includes, for each communication device which is to effect a transmission in connected mode, an operation of broadcasting, to all the other communication devices in the network, an item of information representing the passband necessary for said transmission in connected mode, and a passband allocation operation, during which there is allocated, on the one hand, to the transmissions in connected mode, the passband which is necessary to them and, on the other hand, all or part of the passband available to each transmission to be effected in non-connected mode.
摘要:
Method for setting up an isochronous data stream connection between at least one entry terminal or talker and at least one addressee terminal or listener connected by at least one bridge of a digital bus networ. At least some of the bridges are associated with an isochronous delay that is parametrizable and the method comprises the following steps: (a) obtaining at least one routing path comprising one or more bridges, including at least one bridge with parametrizable isochronous delay; (b) for each bridge included in the at least one routing path, obtaining the value or possible values of the isochronous delay of the bridge; (c) for at least one bridge with parametrizable isochronous delay included in the at least one routing path, selecting the value that must be taken by the isochronous value of the bridge, so that the stream connection taking the at least one routing path incurs a predetermined total isochronous delay; (d) for the at least one bridge with parametrizable isochronous delay included in the at least one routing path, adapting and instantiating at least one resource of the bridge, so that the parametrizable isochronous delay of the bridge takes said selected value.