Bentley Systems Inc. now develops and distributes the ADINA engineering simulation software suite worldwide. The original ADINA R&D company was founded in 1986 by Dr. Klaus-Jürgen Bathe, and headquartered in Massachusetts. ADINA is used in industry and academia to solve structural, fluid, heat transfer, and electromagnetic problems. ADINA can also be used to solve multiphysics problems, including fluid-structure interactions and thermo-mechanical problems. ADINA R&D, Inc. has an OEM agreement with Siemens PLM Software where a portion of the ADINA-Structures code is offered as the NX Nastran Advanced Nonlinear module, Sol 601/701. http://www.adina.com/index.shtml http://en.wikipedia.org/wiki/ADINA http://www.plm.automation.siemens.com/en_us/products/nx/for-simulation/structural-analysis/nonlinear.shtml#lightview%26uri=tcm:1023-4483%26title=NX%20Nastran%20Advanced%20Nonlinear-Solution%20601%2F701%20-%20NX%20Fact%20Sheet%20-%204989%26docType=.pdf