Authors: Gerhard Klimeck, George B. Adams III, Krishna P. C. Madhavan, Nathan Denny, Michael G. Zentner, Swaroop Shivarajapura, Lynn K. Zentner, Diane L. Beaudoin, and Mehdi Salmani-Jelodar Network for Computational Nanotechnology, Purdue University

As the first and largest HUB utilizing the HUBzero infrastructure, nanoHUB.org provides a prime example of how HUBs function as virtual organizations, with the potential to accelerate scientific research and enrich education. With over 170,000 users in the last 12 months and over 2,300 resources including nearly 200 simulation tools, nanoHUB.org has established itself as the world’s largest Nanotechnology User Facility. Critical attributes for the success of such science gateways are open access, ease of use, utterly dependable operation, and diverse, high-quality content. Through nanoHUB.org, these attributes are realized, resulting in significant global knowledge transfer among researchers and from research to education. The impact and success of a science gateway can be measured and evaluated utilizing a variety of usage statistics, usage patterns, and analysis of citation data. An algorithm-based analysis reveals patterns in classroom usage and citation analysis illustrates multi-directional dissemination of research within the community. These success criteria apply not only to nanoHUB.org, but can be extended to other science gateways and other HUBs using HUBzero technology.

Gerhard Klimeck is the Director of the Network for Computational Nanotechnology at Purdue University and a Professor of Electrical and Computer Engineering. He guides the technical developments and strategies of nanoHUB.org which served over 170,000 users worldwide with on-line simulation, tutorials, and seminars in the last 12 months. He was the Technical Group Supervisor of the High Performance Computing Group and a Principal Scientist at the NASA Jet Propulsion Laboratory. Previously he was a member of technical staff at the Central Research Lab of Texas Instruments where he served as manager and principal architect of the Nanoelectronic Modeling (NEMO 1-D) program. NEMO 1-D was the first quantitative simulation tool for resonant tunneling diodes and 1D heterostructures. At JPL and Purdue Gerhard developed the Nanoelectronic Modeling tool (NEMO 3-D ) for multimillion atom simulations. NEMO 3-D has been used to quantitatively model optical properties of self-assembled quantum dots, disordered Si/SiGe systems, and single impurities in Silicon. Both tools are based on the representation of the nanoelectronic device with atomistic empirical tight-binding. Quantitative device modeling was demonstrated without any material parameter adjustments, just by entry of geometrical structure parameters. At Purdue his group is developing a new simulation engine that combines the NEMO 1-D and NEMO 3-D capabilities into a new code entitled OMEN. Prof. Klimeck’s research interest is in the modeling of nanoelectronic devices, parallel cluster computing, and genetic algorithms. Dr. Klimeck received his Ph.D. in 1994 on Quantum Transport from Purdue University and his German electrical engineering degree in 1990 from Ruhr-University Bochum. Dr. Klimeck’s work is documented in over 130 peer-reviewed journal and 125 proceedings publications and over 130 invited and 280 contributed conference presentations. He is a senior member of IEEE and member of APS, HKN and TBP. NEMO 1-D was recently demonstrated to scale to 23,000 parallel processors, NEMO 3-D was demonstrated to scale to 8,192 processors, and OMEN was demonstrated to scale to 222.720 processors.

Researchers should cite this work as follows:

• Gerhard Klimeck; George B. Adams III; Krishna P. C. Madhavan; Nathan Travis Denny; Michael Zentner; Swaroop S; Lynn Zentner; Diane L Beaudoin; Mehdi Salmani-Jelodar (2011), "Exploring the Impact of nanoHUB.org on Research and Education," https://help.hubzero.org/resources/408.

  BibTex | EndNote

1. nanohub