William Northrop: Ammonia as a fuel for internal combustion engines: advanced combustion modes

Round-16 hunt: picked; source: course-code search at newly covered universities (r16 wave 7); channel screens (sellers/exam/re-upload/devotional/vendor/events), provenance check, vendor/seller/devotional recheck and quality tier A passed; strict per-title check + final strict pass; oEmbed verified.