Eylem Seç
Experimental and Modeling Studies of Pattern Growth and Pattern Invasion in Heterogenous Reaction-Diffusion Systems
Başlık:
Experimental and Modeling Studies of Pattern Growth and Pattern Invasion in Heterogenous Reaction-Diffusion Systems
Yazar:
Gaskins, Delora K., author.
ISBN:
9780438051836
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (110 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: Irving R. Epstein Committee members: Enrique Peacock-Lopez; Bing Xu.
Özet:
Experimental studies of pattern formation are carried out in the aqueous chlorine dioxide-iodine-malonic acid (CDIMA) oscillating chemical reaction in an open configuration and in the reverse microemulsion Belousov-Zhabotinsky-Aerosol OT (BZ-AOT) oscillating chemical reaction in a closed configuration. These systems form patterns in space and time because of the wave, Turing, and Hopf instabilities.
In the first system, the addition of the halides bromide and chloride changes the wavelength of the Turing patterns by up to five times the natural wavelength of the pattern. This result has significance because the largest previous increase was no more than a factor of two and was unable to be achieved within a single experiment. These changes were able to be qualitatively reproduced with a realistic chemical model.
In the second system, multiple invasion (Turing invading bulk oscillations) styles were observed. In addition, a modulated standing wave pattern was observed to invade a bulk oscillation domain. This pattern in turn was replaced as spirals were formed. This "death" by spiral formation was qualitatively reproduced using a chemical toy model.
Additionally, patterns were observed when the BZ-AOT system (bubble-free, and non-bubble free) was incorporated into a membrane. A microemulsion-based organogel that is stable in the reacting BZ-AOTmedium was also synthesized. These are significant steps towards the building of a reactor for the BZ-AOT reverse microemulsion system.
Notlar:
School code: 0021
Tüzel Kişi Ek Girişi:
Mevcut:*
Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(680111.1) | 680111-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
On Order
Liste seç
Bunu varsayılan liste yap.
Öğeler başarıyla eklendi
Öğeler eklenirken hata oldu. Lütfen tekrar deneyiniz.
:
Select An Item
Data usage warning: You will receive one text message for each title you selected.
Standard text messaging rates apply.