Object loader

Icarus Databanks Meta-I Application is Object Loaders (Viewer Adapters... 

These rules are also used to extract data from the database. An object loader, another object in the SRS system, can be defined in the meta definition layer and describes the way a token table relates to a field to be extracted and viewed. 

Object loaders [16] provide a new and more flexible way of obtaining the data for those entries in the set from the databases. Instead of retrieving a set of strings or text, the object loader retrieves an object containing the re-... 

This provides much more flexibility, as the data objects returned by the object loader can be passed to other programs, such as those written in C, C++, Java Perl or Python, passed over the Internet via a CORBA server or used to create more interesting views, such as a view including an image made from data in the object (an example of this can be seen in Figure 1.11 further in this Chapter). 

Figure 1.10 shows how objects containing information from multiple databases can be constructed. From the databases, DBl and DB2, the token server can retrieve information via the grammars describing those databases as described above. An object loader can then be defined which relates an attribute in the object to a specific token table from the token server. The object loader can then take this meta-deftned object and load information into it from the databases for each entry in the set. 

D. The participants included 26 ground applicators in North Dakota after a single exposure and 17 aerial applicators in Washington during intermittent exposure. The objective was to ascertain worker exposure base-levels of 2,4-D under normal use conditions. Mean daily urinary excretion of 2,4-D by workers involved in aerial applications was 0.006 mg/kg body weight for pilots and 0.02 mg/kg for mixer/loaders from intermittent exposure. Workers involved in ground applications had maximum mean one-day 2,4-D urinary excretion of 0.002, 0.003, and 0.004 mg/kg, respectively, for applicators, mixer/loaders, and mixer/loader/applicators from a one-time exposure. The Ej/2 (half-elimination time for total... 

There are two special classes of rified cannon, respecting which there are divided opinions among military men and others. The one has a movable breech and is loaded at the rear the other has a close cylinder behind, and is loaded at the muzzle. It is eltdmed tor the breech-loaders that they can be loaded with less labor, are more convenient for receiving shot and shells, and that expanding shot are not req uired for them. The objections to them are, that they are more complicated and expensive in construction than muzzle-loaders, and they are more liable to get injured and become inoperatixe in action. 

A rolling object (front-end loader, crew truck, semi-truck, water harder)... 

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