摘要:
The present invention provides a method and apparatus or system for determining an amount of coal tar that can enter, and subsequently be displaced from, a given type of soil for a range of depths of the soil. The method and apparatus also provide verification of the pressure at which coal tar can be displaced from a given type of soil. In particular, the method and apparatus simulate the hydrostatic pressure that a soil sample encounters in the subsurface of the ground. Accordingly, the method and apparatus provide a relationship between the concentration of coal tar in the soil and the pressure required to displace the coal tar from the soil, which allows for an estimation of the amount of coal tar that may be displaced at a particular location or site. Further, the method and apparatus are adaptable for use in the laboratory or the field.
摘要:
A method and system for constructing rule-based intelligent agents that process events on behalf of one or more users. The intelligent agents have event-generating modules that supply events to be processed, and event-processing modules that process the events by evaluating rules. Each event-processing module of the agent includes multiple sets of rules, one or more such sets for each user of the agent. A selection key related to the user is associated with a rule set, and for event-generating modules a selection key indicates the user on whose behalf the event was generated. When the event-processing module receives an event with a selection key, the module locates and evaluates the rule set(s) which have a matching key to launch the corresponding actions. Addition, replacement or removal of rule sets for a user is made by temporarily suspending the initiation of new events for the user designated by the rule set's selection key; completing all in-progress events for that user; effecting the modification to the rule set within the event-processing modules; and the resuming the initiation and processing of events for the user. While the rule sets are being modified for a particular user, event generating and processing continues unimpeded for the other users of the agent.