摘要:
A radio access bearer authentication procedure prevents a service application running on a mobile station from obtaining a higher level of radio access bearer service than is authorized by the network operator. A secret identifier is determined both at the mobile station and at the radio network. When the mobile's service application requests a particular level of radio access bearer resources, the mobile sends its secret identifier to the radio network which compares the two. Such secret identifiers may be determined from a SIM associated with the mobile. If the secret identifiers match, the radio access network allocates the requested radio access bearer resources for the service application. One example service application is voice over IP (VoIP).
摘要:
The invention relates to a method of controlling flow of liquids in a micro channel structure. It comprises providing in said micro channel structure plugs (34) of polymer material in said structure, said polymer material in a first state blocking said channel from liquid flow, and in a second state providing a free path-way (32) for liquid flow. Energy is selectively applied so as to cause said polymer to enter a desired one of said first or second states. It also relates to a micro channel valve system, comprising a plurality of such plugs (34). Additionally it comprises a chemical reactor, comprising a plurality of micro chambers interconnected by micro channels, having a valve system according to the invention.
摘要:
The present invention is a method of producing porous beads, which comprises the steps of providing a first liquid phase comprising a bead matrix material and essentially edgy templating particle(s), said particle(s) being treated with a surface modifying agent; providing a second liquid phase which is immiscible with the first liquid phase; contacting the first phase and the second phase under conditions resulting in an emulsion of droplets comprised of the first liquid phase dispersed in the continuous second liquid phase; transforming the droplets to mesoporous beads by solidification of the liquid; and removing the templating particle(s) from the beads without causing any essential change of the surrounding bead, whereby hierarchical networks of pores are provided in the beads.
摘要:
A method and a system are for simulating a surgical procedure on a bodily object, such as an organ, in a virtual environment. The virtual environment includes a three-dimensional mathematically described model of the bodily object which reflects geometrical and mechanical properties, and a virtual instrument that is controlled by a physical feeding device, which makes it possible to affect the model. The method includes the steps of representing a two-dimensional projection of the model by way of a video sequence containing a recorded view of a real bodily object, wherein engagement with the virtual instrument only involves interacting with the model. In addition, a method is for simulating an operation containing several surgical procedures.
摘要:
A method and arrangement in a communications network. The object is to provide a way of handling recourse management issues and admission control within an IP telephony system. The object is achieved by a topology aware resource manager collecting routing information concerning the IP network, obtaining resource information concerning resources within the IP network, creating a resource map by combing the routing information and resource information, and performing recourse management issues and admission control within the system by the resource map and by interacting with a gatekeeper.
摘要:
The present invention is a process of manufacture of one or more polysaccharide beads, comprising generating an aerosol of an aqueous polysaccharide solution, cooling the droplets of said aerosol in air to initiate gelling thereof and collecting droplets as gelled beads in a liquid or on a surface, characterised by adding a hydrophilic vapour pressure-lowering agent to said polysaccharide solution.
摘要:
The present invention relates to use of avian antibodies and/or antigen binding fragments thereof, for the production of a drug for treatment and/or prevention of respiratory tract infection. The drug is administered through local application at the oral cavity and/or pharynx.
摘要:
A chromatographic method and device for separating one or several organic substances in a liquid sample. According to the method said sample of substances is passed through a chromatographic device containing as separation medium at least one continuous macroporous matrix. The macroporous matrix comprises a cross-linked organic polymer prepared by polymerization of a high internal phase emulsion system of a water-in-oil emulsion of organic monomers, said emulsion containing at least 75% by weight of water phase. The polymerization results in an open porous structure, to allow a convective flow to pass through the macroporous matrix, whereby said organic substances separate from each other and/or the liquid. The pores of the macroporous matrix are unmodified, or surface modified in a manner that the convective flow is not hampered.
摘要:
A safety package is disclosed which includes a tubular member having first and second opposed end openings, a layer of heat insulative material inside the tubular member and a layer of heat insensitive material overlying the insulative material. Explosives or other volatile materials are placed in a depression in the heat insulative material and covered with the heat insensitive material to protect them from heat and fire to make transportation of such materials safer. In the event that the explosive materials are ignited, the gasses generated by the ensuing explosion will be vented in a non-unidirectional manner through the end openings and optional vent openings.
摘要:
An optical arrangement comprising a plurality of cells arranged in a two-dimensional array on, into, or partly into an optical medium, each said cell having a pattern structure comprising a number of grooves which are parallel to each other and which form a grating. The grating of each cells forms at least two sections which are displaced in relation to each other by a predetermined distance in a direction which is essentially perpendicular to the longitudinal direction of the grooves. The grooves of two or more adjacent cells are unaligned with one another for controlling the phase or amplitude of one or more incident optical waves when the cells receive the incident optical waves.