The phrase "are required for various" is correct and usable in written English.
It can be used when discussing the necessity of certain items, actions, or conditions for different purposes or situations.
Example: "These materials are required for various applications in the construction industry."
Alternatives: "are necessary for different" or "are essential for various".
Filters with sharp transition width are required for various applications in wireless communication.
Remotely sensed high spatial resolution thermal images are required for various applications in natural resource management.
The feedback-model works well to explain how the amplitude of different forced quantities behave, but the model becomes inaccurate when quantitative predictions are required for various reasons.
The polymerase chain reaction enables investigators to obtain the large quantities of DNA that are required for various experiments and procedures in molecular biology, forensic analysis, evolutionary biology, and medical diagnostics.
Predictions of hydrological regimes at ungauged sites are required for various purposes such as setting environmental flows, assessing availability of water resources or predicting the probability of floods or droughts.
The blend containing LiCF3SO3 is highly transparent and shows a significantly small value of the stress-optical coefficient in the glassy state, which are required for various optical films used for display, such as polarizer protective film.
Accurate measurement of phase noise is required for various applications in radar, communication and navigation systems.
Soil moisture at high spatial resolution is required for various land processes related studies.
An accurate forecast of solar irradiation is required for various solar energy applications and environmental impact analyses in recent years.
In order to properly address calculation and design issues dealing with these systems, accurate estimation of the heat transfer phenomena is required for various types of applications.
Extracellular Ca(2+) (Ca(2+)(o)) is required for various physiological and developmental processes in animals and plants.
