摘要:
A transformation method and system is provided. The method includes generating a data hub application configured to embed extract, transform, and load (ETL) processes. The data hub application is linked to source tables and target tables. Meta data associated with the source and target tables is transferred from virtual views of the data hub application to an ETL work area of the ETL processes. An ETL job is generated and linked to the data hub application. ETL processes are executed and results are determined.
摘要:
A transformation method and system is provided. The method includes generating a data hub application configured to embed extract, transform, and load (ETL) processes. The data hub application is linked to source tables and target tables. Meta data associated with the source and target tables is transferred from virtual views of the data hub application to an ETL work area of the ETL processes. An ETL job is generated and linked to the data hub application. ETL processes are executed and results are determined.
摘要:
A method for controlling a gas turbine engine includes: generating model parameter data as a function of prediction error data, which model parameter data includes at least one model parameter that accounts for off-nominal operation of the engine; at least partially compensating an on-board model for the prediction error data using the model parameter data; generating model term data using the on-board model, wherein the on-board model includes at least one model term that accounts for the off-nominal operation of the engine; respectively updating one or more model parameters and one or more model terms of a model-based control algorithm with the model parameter data and model term data; and generating one or more effector signals using the model-based control algorithm.
摘要:
A system and method is disclosed for the adaptive and dynamic adjustment of the characteristics of a cache on a basis that is specific the operation of each logical unit. A storage controller may include a cache. The cache is subdivided so that a portion of the cache is associated with each logical unit that is coupled to the storage controller. A cache management utility monitors the data access commands transmitted to each logical unit of the storage array. The size of the portion of the cache dedicated to each logical unit may be adjusted on the basis of the data access commands directed to the logical unit. The size of the read cache subportion and the size of the write cache subportion of a cache portion associated with a single logical unit may be adjusted on the basis of the read and write commands directed to the logical unit.
摘要:
A method for controlling a gas turbine engine includes: generating model parameter data as a function of prediction error data, which model parameter data includes at least one model parameter that accounts for off-nominal operation of the engine; at least partially compensating an on-board model for the prediction error data using the model parameter data; generating model term data using the on-board model, wherein the on-board model includes at least one model term that accounts for the off-nominal operation of the engine; respectively updating one or more model parameters and one or more model terms of a model-based control algorithm with the model parameter data and model term data; and generating one or more effector signals using the model-based control algorithm.