{"id":{"repo_id":"wvu","oai_identifier":"oai:researchrepository.wvu.edu:etd-1097"},"canonical_url":"https://search.dev.ndltd.org/etd/wvu/oai:researchrepository.wvu.edu:etd-1097","repository":{"repo_id":"wvu","name":"West Virginia University","base_url":"https://researchrepository.wvu.edu/do/oai/"},"display":{"title":"Perturbation studies of excitable media","abstract":"Poly(N-isopropylacrylamide) (PNIPA) based systems are probably the most often studied polymer gels due to their dramatic change in volume, swelling and deswelling. Since this system has the best response to pH between 4 and 7, the ferrocyanide-iodate-sulfite (FIS) reaction, which exhibits pH oscillations between 4 and 7.5 in a continuously stirred tank reactor (CSTR), is a good candidate for studies of oscillatory gel systems.;This work also focused on two dynamical phenomena in the ruthenium catalyzed Belousov-Zhabotinsky (BZ) reaction. One is self-organized criticality and the other is periodic forcing and how they can be studied with the BZ reaction. Self-organized criticality is the ability of a system to organize itself into a critical state as a response to random perturbations. Periodic forcing gives rise to waves being sustained in a subexcitable medium by imposing periodic perturbations above and below the excitability limit.","abstract_html":"Poly(N-isopropylacrylamide) (PNIPA) based systems are probably the most often studied polymer gels due to their dramatic change in volume, swelling and deswelling. Since this system has the best response to pH between 4 and 7, the ferrocyanide-iodate-sulfite (FIS) reaction, which exhibits pH oscillations between 4 and 7.5 in a continuously stirred tank reactor (CSTR), is a good candidate for studies of oscillatory gel systems.;This work also focused on two dynamical phenomena in the ruthenium catalyzed Belousov-Zhabotinsky (BZ) reaction. One is self-organized criticality and the other is periodic forcing and how they can be studied with the BZ reaction. Self-organized criticality is the ability of a system to organize itself into a critical state as a response to random perturbations. Periodic forcing gives rise to waves being sustained in a subexcitable medium by imposing periodic perturbations above and below the excitability limit.","abstract_has_math":false,"creators":["Seagraves, Lisa Elizabeth"],"institution":null,"degree_name":"MS","degree_level":"Thesis","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Kenneth Showalter","Paul Jagodzinski","Charles Jaffe"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1998,"date_issued":"1998-12-01T08:00:00Z","date_published":"1998-12-01T08:00:00Z","updated_at":"2026-07-24T06:14:02Z","subjects":["Physical chemistry"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://researchrepository.wvu.edu/etd/94"],"render_values":[{"text":"https://researchrepository.wvu.edu/etd/94","href":"https://researchrepository.wvu.edu/etd/94","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.33915/etd.94","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kenneth Showalter","Paul Jagodzinski","Charles Jaffe"]},{"key":"dc:creator","label":"Author","values":["Seagraves, Lisa Elizabeth"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2019-01-17T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Physical chemistry"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://doi.org/10.33915/etd.94","https://researchrepository.wvu.edu/etd/94"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Poly(N-isopropylacrylamide) (PNIPA) based systems are probably the most often studied polymer gels due to their dramatic change in volume, swelling and deswelling. Since this system has the best response to pH between 4 and 7, the ferrocyanide-iodate-sulfite (FIS) reaction, which exhibits pH oscillations between 4 and 7.5 in a continuously stirred tank reactor (CSTR), is a good candidate for studies of oscillatory gel systems.;This work also focused on two dynamical phenomena in the ruthenium catalyzed Belousov-Zhabotinsky (BZ) reaction. One is self-organized criticality and the other is periodic forcing and how they can be studied with the BZ reaction. Self-organized criticality is the ability of a system to organize itself into a critical state as a response to random perturbations. Periodic forcing gives rise to waves being sustained in a subexcitable medium by imposing periodic perturbations above and below the excitability limit."]},{"key":"dc:title","label":"Title","values":["Perturbation studies of excitable media"]}]}],"canonical_facts":{"dc:contributor":["Kenneth Showalter","Paul Jagodzinski","Charles Jaffe"],"dc:creator":["Seagraves, Lisa Elizabeth"],"dc:date.available":["2019-01-17T08:00:00Z"],"dc:description.abstract":["Poly(N-isopropylacrylamide) (PNIPA) based systems are probably the most often studied polymer gels due to their dramatic change in volume, swelling and deswelling. Since this system has the best response to pH between 4 and 7, the ferrocyanide-iodate-sulfite (FIS) reaction, which exhibits pH oscillations between 4 and 7.5 in a continuously stirred tank reactor (CSTR), is a good candidate for studies of oscillatory gel systems.;This work also focused on two dynamical phenomena in the ruthenium catalyzed Belousov-Zhabotinsky (BZ) reaction. One is self-organized criticality and the other is periodic forcing and how they can be studied with the BZ reaction. Self-organized criticality is the ability of a system to organize itself into a critical state as a response to random perturbations. Periodic forcing gives rise to waves being sustained in a subexcitable medium by imposing periodic perturbations above and below the excitability limit."],"dc:identifier":["https://doi.org/10.33915/etd.94","https://researchrepository.wvu.edu/etd/94"],"dc:subject":["Physical chemistry"],"dc:title":["Perturbation studies of excitable media"],"thesis:degree_discipline":["Chemistry"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["MS"]},"updated_at":"2026-07-24T06:14:02Z"}