Abstract: A flow control apparatus for a boiling water nuclear reactor steam dryer is provided. The steam dryer includes at least one discharge plenum. In an exemplary embodiment, the flow control apparatus includes a support member, an elongate perforated plate member coupled to the support member, and at least one positioning member coupled to the support member.

Abstract: A transmitter circuit improves a noise margin for decoding a common mode signal at a receiver circuit. The transmitter circuit includes a common mode signal transmitter and a noise margin enhancement circuit coupled to a transmission line. The common mode signal transmitter transmits a control message using a common mode signal. The common mode signal has a first voltage level and a second voltage level higher than the first voltage level, and the control message corresponds to a portion of the common mode signal having the first voltage level. The noise margin enhancement circuit raises a voltage level of the common mode signal to a third voltage level higher than the second voltage level for a specific time period from a rising edge of the common mode signal from the first voltage level.

Abstract: A high-performance, high-reliable backplane bus has a simple configuration and operation. An error reporting network (ERN) provides an inexpensive approach to collecting the error state of a whole system in a uniform and consistent way. The uniformity allows for simpler interface software and for standardized hardware handling of classes of errors. In a preferred embodiment, serial error registers are used, minimizing implementation cost and making the software interface to the serial registers much easier. Serial error information is transferred over a separate data path from the main parallel bus, decreasing the chance of the original error corrupting the error information. Each CPU is provided with a local copy of the entire body of error information. The redundancy minimizes the impact of a possible CPU failure and allows the CPUs to coordinate error recovery.

Abstract: Catalysts for the polymerization of C2-C20-olefins are preactivated by a process in which the catalyst is first mixed with the respective monomer, then, if appropriate, the respective cocatalyst is added and the resulting mixture is subsequently subjected to preactivation in a tube reactor and the catalyst which has been preactivated in this way is finally introduced into the actual polymerization reactor, wherein the mixture of catalyst, any cocatalyst and monomer is passed through the tube reactor in turbulent plug flow at a Reynolds number of at least 2 300.

Abstract: High-speed data streams are exchanged between two digital computing devices one or both of which lacks DMA. Data transfers are performed by the devices using High-Level Datalink Control (HDLC) frames. An initiating device indicates that it wishes to exchange data with the other device by sending an HDLC frame with data stream indentification and other information. The initial HDLC frame is sufficiently short that at least an essential portion of the frame can be stored in a receive buffer of the interface circuitry. Although the receiving device may not receive the entire HDLC frame correctly because of the possibility of an overrun condition, enough information is preserved in the interface circuitry to complete the transaction. The responding device then proceeds to read or write data at high speed using a series of exchanges with the initiating device.

Abstract: The use of diluent to reduce non-specific drug binding (NSB) provides a simple, flexible and biocompatible way to reduce chemical entity (such as drugs, drug candidates and other small molecules) NSB so that bioassay results may more closely predict the behavior of these compounds in vivo. Additionally, the use of diluent as the chemical entity diluent enhances the predictive nature of data emanating from high throughput drug assays such as Caco-2 drug transport assays, plasma protein drug binding assays, PAMPA assays, permeability assays, and drug solubility assays. The diluent is made by either filtering a selected plasma through an ultrafiltration membrane having nominal molecular weight cutoff of about 30 kD, preferably about 10 kD or below or by selectively adding individual components of a plasma or serum that do not contribute to non-specific binding.

Abstract: A flow control apparatus for a boiling water nuclear reactor steam dryer is provided. The steam dryer includes at least one discharge plenum. In an exemplary embodiment, the flow control apparatus includes a support member, an elongate perforated plate member coupled to the support member, and at least one positioning member coupled to the support member.

Abstract: A packet is classified by associating a network layer address with a service, obtaining the data link layer address for that network layer address, and associating a packet with that service if the data link layer destination address associated with the packet matches the data link layer address associated with the service.

Abstract: High-speed data streams are exchanged between two digital computing devices one or both of which lacks DMA. Data transfers are performed by the devices using High-Level Datalink Control (HDLC) frames. An initiating device indicates that it wishes to exchange data with the other device by sending an HDLC frame with data stream indentification and other information. The initial HDLC-frame is sufficiently short that at least an essential portion of the frame can be stored in a receive buffer of the interface circuitry. Although the receiving device may not receive the entire HDLC frame correctly because of the possibility of an overrun condition, enough information is preserved in the interface circuitry to complete the transaction. The responding device then proceeds to read or write data at high speed using a series of exchanges with the initiating device.

Abstract: Catalyst systems of the Ziegler-Natta type comprise as active constituents a) a solid component comprising a compound of titanium or vanadium, a compound of magnesium, a particulate inorganic oxide as support and an internal electron donor compound, and as cocatalyst b) an aluminum compound and c) if desired, a further, external electron donor compound, wherein the particulate, inorganic oxide used has a specific surface area of from 350 to 1000 m2/g and a mean particle diameter {overscore (D)} in the range from 5 to 60 &mgr;m and comprises particles which are composed of primary particles having a mean particle diameter {overscore (d)} in the range from 1 to 10 &mgr;m and contain voids or channels between the primary particles, where the macroscopic proportion of voids or channels having a diameter of greater than 1 &mgr;m in the particles of the inorganic oxides is in the range from 5 to 30% by volume and the molar ratio of the compound of magnesium to the particulate, inorganic oxide is from 0.

Abstract: Process for activating a Fischer-Tropsch synthesis catalyst that comprises at least two stages: at least one stage for activation in the presence of hydrogen, or a mixture of hydrogen and an inert gas, and at least one stage for activation in the presence of carbon monoxide or a mixture of carbon monoxide and an inert gas, and optionally a third activation stage that is carried out either in the presence of hydrogen or a mixture of hydrogen and an inert gas, or in the presence of carbon monoxide or a mixture of carbon monoxide and an inert gas.

Abstract: Polymerizable alkanes are prepared by gas-phase polymerization in the presence of catalyst systems by a process in which the catalyst systems used are supported castalyst systems.

Abstract: The present invention employs a generative approach for configuring systems such that a system may be configured based on component or resource requests, or input in the form of need. The present invention provides a constraint-based configuration system using a structural model hierarchy. The structural aspects of the model provide the ability to define a model element as being contained in, or by, another model element. In addition, the structural model provides the ability to identify logical datatype and physical interconnections between elements and establish connections between elements. To configure a system, the present invention accepts input in the form of requests (e.g., component or resource) or needs, such as an expression of a need for a desktop computer system to be used in a CAD (i.e., computer-aided design) environment.

Abstract: Supported catalyst systems are obtainable by A) reaction of an inorganic carrier with a metal compound of the general formula I M1(R1)r(R2)s(R3)t(R4)u  I  where M1 is an alkali metal, an alkaline earth metal or a metal of main group III or IV of the Periodic Table, R1 is hydrogen, Ch1-C10-alkyl, C6-C15-aryl, alkylaryl or arylalkyl each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, R2 to R4 are each hydrogen, halogen, C1-C10-alkyl, C6-C15-aryl, alkylaryl, arylalkyl, alkoxy or dialkylamino each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, r is an integer from 1 to 4 and s, t and u are integers from 0 to 3 the sum r+s+t+u corresponding to the valency of M1, B) reaction of the material obtained according to A) with a metallocene complex in its metal dihalide form and a compound forming metallocenium ions and C) subsequent reaction with a metal compound of the general formula I

Abstract: A data transmission system having a real-time data engine for processing isochronous streams of data includes an interface device that provides a physical and logical connection of a computer to any one or more of a variety of different types of data networks. Data received at this device is presented to a serial driver, which disassembles different streams of data for presentation to appropriate data managers. A device handler associated with the interface device sets up data flow paths, and also presents data and commands from the data managers to a real-time data processing engine. Flexibility to handle any type of data, such as voice, facsimile, video and the like, that is transmitted over any type of communication network with any type of real-time engine is made possible by abstracting the functions of each of the elements of the system from one another.

Abstract: Polymers of alkenes are prepared by suspension polymerization in the presence of catalyst systems by a process in which the catalyst systems used are supported catalyst systems obtainable by A) reaction of an inorganic carrier with a metal compound of the general formula I M1(R1)r(R2)s(R3 )t(R4 )u  I where M1 is an alkali metal, an alkaline earth metal or a metal of main group III or IV of the Periodic Table, R1 to R7 are variously halogen, alkoxy, dialkylamino, hydrogen, C1-C10-alkyl, C6-C15-aryl, alkylaryl or arylalkyl each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, r, s, t and u are integers from 1 to 4 the sum r+s+t+u corresponding to the valency of M1, B) reaction of the material obtained according to A) with a metallocene complex in its metal dihalide form and a compound forming metallocenium ions and C) subsequent reaction with a metal compound of the general formula II M2(R5)o(R6)p(R7)q  II.

Abstract: Catalyst systems of the Ziegler-Natta type comprise as active constituents

Abstract: Vinyl monomers are polymerized in the aqueous phase in the presence of at least one N-oxyl compound of a secondary amine, having no hydrogen atoms bonded to the &agr; carbon atoms. This process substantially eliminates deposits on reactor surfaces.

Abstract: Polymers of alkenes are prepared by suspension polymerization in the presence of catalyst systems by a process in which the catalyst systems used are supported catalyst systems obtainable by

Abstract: Continuous-feed plasma treater systems are designed to treat continuous substrates, such as webs or films, by continuously feeding the substrates through an enclosure having a plasma discharge that alters the substrate's surface properties in some desirable fashion. According to the present invention, the enclosure has one or more electrode assemblies that generate plasma discharges at working-gas pressures ranging from moderate pressures (e.g., rough vacuums as low as about 10 Torr) to high pressures (e.g., about one Atmosphere). The electrode assemblies are driven by power supplies that excite the electrode assemblies in either an RF resonant excitation mode or a pulsed voltage excitation mode.