Problem: Infrared cleaning is a technique used by some Motion picture film scanner, film scanners and flatbed scanners to reduce or remove the effect of dust and scratches upon the finished scan. It works by collecting an additional infrared channel from the scan at the same position and resolution as the three visible color channels (red, green, and blue). The infrared channel, in combination with the other channels, is used to detect the location of scratches and dust. Once located, those defects can be corrected by scaling or replaced by inpainting.
What is the name of the technique used in scanners to minimize the effects of dust and scratches?
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Answer: Infrared cleaning


Problem: Having produced a conceptual data model that users are happy with, the next stage is to translate this into a schema that implements the relevant data structures within the database. This process is often called logical database design, and the output is a logical data model expressed in the form of a schema. Whereas the conceptual data model is (in theory at least) independent of the choice of database technology, the logical data model will be expressed in terms of a particular database model supported by the chosen DBMS. (The terms data model and database model are often used interchangeably, but in this article we use data model for the design of a specific database, and database model for the modelling notation used to express that design.)
What terms are no longer used interchangeably?
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Answer: unanswerable


Problem: Over the course of 2013, the corporation began the sale of its US shale gas assets and cancelled a US$20 billion gas project that was to be constructed in the US state of Louisiana. A new CEO Ben van Beurden was appointed in January 2014, prior to the announcement that the corporation's overall performance in 2013 was 38 per cent lower than 2012—the value of Shell's shares fell by 3 per cent as a result. Following the sale of the majority of its Australian assets in February 2014, the corporation plans to sell a further US$15 billion worth of assets in the period leading up to 2015, with deals announced in Australia, Brazil and Italy.
In what year did the corporation sell the majority of its Australian assets?
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Answer:
2014