Abstract: A flange joint that fully isolates the steel sidewall from contact with water entering the skimmer duct of an aboveground pool is provided by the use of a pair of mating flanges fitted to opposite sides of the sidewall. The flanges are comprised of two closely interfitting elements sealed together directly to the metal sidewall by a water-proof adhesive. The flanges include overlapping collars within the sidewall opening which completely seal off and isolate water entering the skimmer duct to prevent any possibility of contact with the metal pool sidewall. Thus, water damage to the pool sidewall is eliminated.

Abstract: A flange joint that fully isolates the steel sidewall from contact with water entering the skimmer duct of an aboveground pool is provided by the use of a pair of mating flanges fitted to opposite sides of the sidewall. The flanges are comprised of two closely interfitting elements sealed together directly to the metal sidewall by a water-proof adhesive. The flanges include overlapping collars within the sidewall opening which completely seal off and isolate water entering the skimmer duct to prevent any possibility of contact with the metal pool sidewall. Thus, water damage to the pool sidewall is eliminated.

Abstract: A method for performing circuit analysis on an integrated-circuit design having design data available in different forms is disclosed. In accordance with the method and system of the present invention, the integrated-circuit design includes multiple networks, and the different forms of design data may appear within one of the networks. For all of the networks within the integrated-circuit design, different forms of design data are categorized into at least three databases. The first of the at least three databases may contain three-dimensional extraction information, the second of the databases may contain wiring information, and the third of the databases may contain pre-wiring information. For each of the networks, a determination is made as to whether or not three-dimensional extraction information is available. In response to a determination that three-dimensional extraction information is available, performing circuit analysis by utilizing the three-dimensional extraction information.

Abstract: Landfill sites or other refuse deposits are temporarily covered by sheet material between successive filling or dumping operations. The sheet material may be left in place and more refuse deposited on top, or removed and re-used. The material is preferably woven, biodegradable and permeable, such as hessian. A number of sheets of the material may be placed together side-by-side and joined together such as by stitching, stapling or staking.

Abstract: The present invention relates to piperidine derivatives of formula (I) ##STR1## wherein R.sup.1 is a C.sub.1-4 alkoxy group; R.sup.2 is ##STR2## R.sup.3 is a hydrogen or halogen atom; R.sup.4 and R.sup.5 may each independently represent a hydrogen or halogen atom, or a C.sub.1-4 alkyl, C.sub.1-4 alkoxy or trifluoromethyl group;R.sup.6 is a hydrogen atom, a C.sub.1-4 alkyl, (CH.sub.2).sub.m cyclopropyl, --S(O).sub.n C.sub.1-4 alkyl, phenyl, NR.sup.7 R.sub.8, CH.sub.2 C(O)CF.sub.3 or trifluoromethyl group;R.sup.7 and R.sup.8 may each independently represent a hydrogen atom, or a C.sub.1-4 alkyl or acyl group;x represents zero or 1;n represents zero, 1 or 2;m represents zero or 1;and pharmaceutically acceptable salts and solvates thereof; to processes for their preparation; and their use in the treatment of conditions mediated by tachykinins.

Abstract: The present invention relates to piperidine derivatives of formula (I) ##STR1## wherein R.sup.1 is a C.sub.1-4 alkoxy group; R.sup.2 is ##STR2## R.sup.3 is a hydrogen or halogen atom; R.sup.4 and R.sup.5 may each independently represent a hydrogen or halogen atom, or aC.sub.1-4 alkyl, C.sub.1-4 alkoxy or trifluoromethyl group;R.sup.6 is a hydrogen atom, a C.sub.1-4 alkyl, (CH.sub.2).sub.m cyclopropyl, --S(O).sub.n C.sub.1-4 alkyl, phenyl,NR.sup.7 R.sup.8, CH.sub.2 C(O)CF.sub.3 or trifluoromethyl group;R.sup.7 and R.sup.8 may each independently represent a hydrogen atom, or a C.sub.1-4 alkyl or acyl group;x represents zero or 1;n represents zero, 1 or 2;m represents zero or 1;and pharmaceutically acceptable salts and solvates thereof; to processes for their preparation; and their use in the treatment of conditions mediated by tachykinins.

Abstract: A data processing system comprises a number of processing nodes, each having a processor and a local store. The workload of the system is represented by packets, including function packets specifying a function and pointers to one or more argument packets to which the function is to be applied.The argument packets include stateholder packets, which represent variable values, such as semaphores real time clocks and so on. When a node processes a function packet, it checks whether any of its arguments is a stateholder resident in a different processing node. If so, the function packet is exported to the node in which the stateholder resides. This avoids the need for making copies of stateholder packets, and hence avoids any problems of copy consistency. Each function packet is allowed no more than one stateholder as a strict argument.

Abstract: A data processing system is described in which the workload is divided into packets. A plurality of processors access the packets and process them by rewriting them according to predetermined rules. Packets can be of a number of different types, including XAPP and PAPP. An XAPP packet contains a function and one or more arguments in evaluated form, so that the function can be immediately applied to the arguements. A PAPP packet is similar except that its arguments may not be in evaluated form. Processing of an active PAPP packet consists of activating other packets which evaluate the arguments of the PAPP packet, and converting the PAPP to a suspended XAPP packet, awaiting return information from those other packets. The use of different packet types allows greater efficiency, by eliminating redundant actions in processing of the packets.

Abstract: A thermal detector of the type comprising an array of discrete detector elements each of which is supported by a common supportive layer, each of which is provided in thermal contact with a corresponding collector of radiation absorbent material, the area of each collector being larger than the area of the corresponding detector element, characterized in that contact between each collector and the supportive layer is restricted to an area lying substantially within and displaced from the edge periphery of said collector.

Abstract: A computer system is described, having memory cells organized in a directed graph structure by means of pointers. Each cell has a reference count, and each pointer has a weight value. If a new pointer to a cell is created by copying an existing pointer, the new and existing pointers are given weights whose sum equals the old value of the existing pointer. In this way, the sum of the weights of the pointers to any cell are maintained equal to its reference count. If a pointer is destroyed, the reference count of the cell to which it points is reduced by the weight of the pointer. Thus, when the reference count of a cell reaches zero, it is safe to assume that there are no more existing pointers to it, and hence that cell my be reclaimed (garbage-collected) for re-use.