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Their existence and their in-depth understanding in physical systems have led to several applications and technological developments shaping our world today. Here we show the existence of chemical resonance, chemical beats, and frequency locking phenomena in periodically forced pH oscillatory systems (sulfite\u2013hydrogen peroxide and sulfite\u2013formaldehyde\u2013gluconolactone pH oscillatory systems). Periodic forcing was realized by a superimposed sinusoidal modulation on the inflow rates of the reagents in the continuous-flow stirred tank reactor. The dependence of the time period of beats follows the relation known from classical physics for forced physical oscillators. Our developed numerical model describes qualitatively the resonance and beat phenomena experimentally revealed. Application of periodic forcing in autonomously oscillating systems can provide new types of oscillators with a controllable frequency and new insight into controlling irregular chemical oscillation regimes.<\/jats:p>","DOI":"10.1021\/acs.jpclett.0c00586","type":"journal-article","created":{"date-parts":[[2020,3,27]],"date-time":"2020-03-27T05:19:25Z","timestamp":1585286365000},"page":"3014-3019","source":"Crossref","is-referenced-by-count":17,"title":["Chemical Resonance, Beats, and Frequency Locking in\nForced Chemical Oscillatory Systems"],"prefix":"10.1021","volume":"11","author":[{"given":"Hugh Shearer","family":"Lawson","sequence":"first","affiliation":[{"name":"Budapest University of Technology and Economics , , Budafoki u\u0301t 8 , ,","place":["Budapest, Hungary, H-1111"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ga\u0301bor","family":"Hollo\u0301","sequence":"additional","affiliation":[{"name":"Budapest University of Technology and Economics , , Budafoki u\u0301t 8 , ,","place":["Budapest, Hungary, H-1111"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8617-2302","authenticated-orcid":true,"given":"Robert","family":"Horvath","sequence":"additional","affiliation":[{"name":"Centre for Energy Research , , Konkoly Thege M. u. 29-33 , ,","place":["Budapest, Hungary, H-1121"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3453-9883","authenticated-orcid":true,"given":"Hiroyuki","family":"Kitahata","sequence":"additional","affiliation":[{"name":"Chiba University , , Yayoi-cho 1-33 , Inage-ku, ,","place":["Chiba, Japan, 263-8522"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2303-5965","authenticated-orcid":true,"given":"Istva\u0301n","family":"Lagzi","sequence":"additional","affiliation":[{"name":"Budapest University of Technology and Economics , , Budafoki u\u0301t 8 , ,","place":["Budapest, Hungary, H-1111"]},{"name":"Budapest University of Technology and Economics , , Budafoki u\u0301t 8 , ,","place":["Budapest, Hungary, H-1111"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2020,3,27]]},"reference":[{"key":"2026090121191692800_cit1","doi-asserted-by":"publisher","first-page":"2543","DOI":"10.1039\/C7CS00117G","article-title":"Systems Chemistry","volume":"46","author":"Ashkenasy","year":"2017","journal-title":"Chem. 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