This example demonstrates a D3.js network graph visualizing a force-directed layout of research papers, with nodes sized by their citing patents count. The chart uses the `d3.forceSimulation` API to position nodes and render them as SVG circles on a 960x500 canvas, with forces for charge and centering. Data is loaded asynchronously from a static JSON file using `d3.json`. The visualization highlights the strongest-cited works through larger radii, making publication impact immediately apparent.