Abstract: Disclosed are methods, systems, and computer-readable medium for data wrangling. For instance, the method may include: determining one or more data operations to be performed on a multi-dimensional dataset; determining at least one operation type associated with the one or more data operations to be performed; dividing the multi-dimensional dataset into a plurality of sub-tables based on the operation type; providing the plurality of sub-tables to a data wrangling process, the one or more data operations being performed on each of the plurality of sub-tables in parallel to determine a processed plurality of sub-tables; and determining, based on the processed plurality of sub-tables, a finished multi-dimensional dataset. The data wrangling process may process sub-tables (e.g., change-only columns/rows) of tables of the multi-dimensional dataset and/or process sub-tables in parallel for data operations that are not related.

Abstract: Disclosed are methods, systems, and computer-readable medium for data wrangling. For instance, the method may include: determining one or more data operations to be performed on a multi-dimensional dataset; determining at least one operation type associated with the one or more data operations to be performed; dividing the multi-dimensional dataset into a plurality of sub-tables based on the operation type; providing the plurality of sub-tables to a data wrangling process, the one or more data operations being performed on each of the plurality of sub-tables in parallel to determine a processed plurality of sub-tables; and determining, based on the processed plurality of sub-tables, a finished multi-dimensional dataset. The data wrangling process may process sub-tables (e.g., change-only columns/rows) of tables of the multi-dimensional dataset and/or process sub-tables in parallel for data operations that are not related.

Abstract: An industrial wastewater filtration membrane and method for manufacture is disclosed herein. The membrane has three layers: a support layer of nonwoven fabric such as PET, a polysulfone nanofiber filtering membrane layer, and a nanoporous polyamide active separating layer. The polysulfone layer is electrospun onto the support layer. The polyamide layer is electrosprayed onto the polysulfone layer. The resulting membrane has a pure water flux rate of at 0.48 MPa that is between 40-200 liters per square meter per hour, a rejection rate of sodium chloride of 10-85% with inlet sodium chloride concentration of 2000 ppm, and a rejection rate of magnesium sulphate of 80-97% with inlet magnesium sulphate concentration of 2000 ppm.