The phrase "are generated from various" is correct and usable in written English.
It can be used when discussing the sources or origins of something that is produced or created from multiple inputs or types.
Example: "The data sets are generated from various research studies conducted over the past decade."
Alternatives: "are produced from different" or "are derived from several".
Reports are generated from various sources and are validated at origin.
Vitrification form is an immobilization method for the radioactive wastes that are generated from various facilities such as nuclear power plants.
In the process of controlling the noise, it has been found that many types of noise are generated from various parts of cars and other installations.
The biological activity of Mannich bases, a structurally heterogeneous class of chemical compounds that are generated from various substrates through the introduction of an aminomethyl function by means of the Mannich reaction, is surveyed, with emphasis on the relationship between structure and biological activity.
Sugar signals are generated from various source organs in response to stresses and changes in metabolic fluxes [ 25].
The optimal treatment amounts of pollutants can be generated from various conversion technologies under two reliability levels.
Dust is generated from various sources such as soil elements lifted by wind, volcanic eruptions, vehicular movement and pollution (Siddiqui and Bajpai 2012).
To date, iPSCs can be generated from various cell sources that range from commonly used skin fibroblasts to rarely employed blood cells, mostly through virus-based reprogramming methods with different efficiencies (Patel and Yang, 2010).
Total length of rail line network of each host country was generated from various sources, including the World Development Indicators (WDI), the ASEAN Statistical Year Book, and the country-specific government database on transport and communication.
GNPs consist of a gold core which can be generated from various synthesis techniques to give rise to a wide range of different sizes and shapes, covered by a surface coating (Grzelczak et al. 2008).
Additionally, transcriptome resources were generated from various tissues including xylem, phloem, root, shoot, leaf and reproductive tissues from species such as E. grandis, E. gunnii, E. globulus, E. camaldulensis and E. tereticornis (Mizrachi et al. [2010]; http://web.up.ac.za/eucagen/; http://eucgenie.org/; Healey et al. [2014]).
