Abstract: A system and method for forming a polyurethane foam includes supplying an isocyanate component from a source of isocyanate to a proportioner. A resin component from a source of resin is supplied to a metering unit and an additive having an unstable state from a source of additive is supplied to the metering unit. The resin component and the additive form a reactive mixture when combined. The system and method includes delivering the reactive mixture by the metering unit to an accumulator and storing the reactive mixture in the accumulator. The system and method further includes demanding a supply of the reactive mixture with the proportioner and supplying the reactive mixture by the accumulator to the proportioner and mixing the reactive mixture with the isocyanate component by the proportioner to form the polyurethane foam.

Abstract: Embodiments of the invention generally relate to computational systems and methods for managing maintenance of a complex structure. A model of the structure is created and stored, which may be a 3D model of the structure including a 3D map, the model defined with reference to components of the complex structure. Maintenance parameters associated with the components are also stored. Examples of possible maintenance parameters include condition rating, criticality rating, access method and cost. Inspection data is input and received by the computational system. A maintenance plan is generated dependent on the maintenance parameters and the inspection data. The model is displayable as part of a 3D map provides a visual representation of information relating to the structure, which may include aspects of the inspection data, the maintenance parameters and the maintenance plan. Embodiments of the invention also relate to a computational system and method for managing maintenance of a painted or coated structure.

Abstract: An accounting system includes client modules pre-configured for client use, which can be used without client configuration. Each client module has interface forms for entering transaction records. Pre-assigned transaction category codes are stored on a storage medium. Code selectors are entered through use of the transaction entry forms. A client chart of accounts allows selection of an account for association with transaction records. Accounts are predetermined by the clients or in accordance with accounts of trading types prenominated by the clients. Each account includes a unique account identification and description prescribed by the client or generally adopted by traders in the trading type. Each category code is pre-specified as taxed/non-taxed, and as expenditure/income.

Abstract: An animal water trough having a cover structure which fits within the trough and preferably adapted to float on the surface of trough water to substantially cover the whole water surface area. Receptacles or channels are provided in the cover. Apertures, which communicate with the water trough, are provided in the channel walls to convey water from the trough into the receptacle or channel. Preferably, a substance dispenser is located in the cover, which feeds substances into the trough water.

Abstract: A system of energy detection for detecting a valid signal in a modem to enable power savings in receiver and transmitter circuits. The method of energy detection includes the steps of: (a) processing a prescribed number of signal samples (e.g. typically between 512 and 2048); (b) determining an average energy level for the prescribed number of signal samples; (c) determining a gain of an amplifier based on the processed signal samples; (d) comparing the average energy level with a prescribed energy level threshold; and (e) comparing the gain of the amplifier with a prescribed amplifier gain threshold. If the average energy level is greater than the prescribed energy level threshold and if the gain of the amplifier is less than the prescribed amplifier gain threshold then a valid signal is declared and the transmitter of the modem is activated.