Report summary

Northwestern University Department of Mechanical Engineering in 2015-2026 reads as a 71-PI network with 123 internal PI collaborations. The dominant subject mix is Engineering as the leading field (44% of slots across 59 PIs; 59 labels), Biomedical Engineering as the leading subfield (12% of slots across 23 PIs; 23 labels), and Advanced Sensor and Energy Harvesting Materials as the leading topic (4% of slots across 8 PIs; 8 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 24 PIs across distinct clusters. The leading PI names are John A. Rogers (189.9 weighted works; Advanced Sensor and Energy Harvesting Materials, Neuroscience and Neural Engineering). The most visible ties are John A. Rogers and Yonggang Huang (186 shared works, weight 84.3). The leading breakdown groups are group 1 with 10 PIs, 12 internal connections, weight 124.1, around Mechanical Engineering, Mechanics of Materials, Atomic and Molecular Physics, and Optics, led by Jian Cao, Sinan Keten, Wei Chen.