Results 91 to 100 of about 78,709,257 (187)

The variability of giraffe skull morphology

open access: yesJournal of Anatomy, Volume 249, Issue 5, Page 1068-1086, November 2026.
What does giraffe skull shape tell us about their development and evolution? Abstract Giraffe (Giraffa spp.) are among the most unique and charismatic extant animals, largely due to their distinct morphology. The evolutionary and developmental origin of ossicones is a key factor in giraffid biology, yet other features building their characteristic head
Nikolaos Kargopoulos   +15 more
wiley   +1 more source

Synthesis of Nano/Micro Scale ZSM-5 from Kaolin and Its Catalytic Performance

open access: yes, 2017
Nano/micro scale ZSM-5 zeolites were synthesized by using natural kaolin as raw material. The effect of particle size on the catalytic performance of ZSM-5 zeolite for the methanol to olefins conversion was evaluated in a fixed-bed reactor. The results
Lu, Xuchen   +7 more
core   +1 more source

Hierarchical Fe/ZSM-5 with improved catalytic performance in hydroxylation of benzene with nitrous oxide

open access: yes, 2009
Fe/ZSM-5 zeolite catalysts are promising for the production of adipic acid using nitrous oxide, which is a by-product in industry. Compared with the environmentally stressing three step cumene process, Fe/ZSM-5 based catalytic system is green and atom ...
KOEKKOEK   +6 more
core  

SEM images of (a) the Fe(byp) complex, (b) ZSM-5, and (c) Fe-ZSM-5.

open access: yes, 2015
SEM images of (a) the Fe(byp) complex, (b) ZSM-5, and (c) Fe-ZSM-5.
Abdul Aziz Abdul Raman (718557)   +3 more
core   +1 more source

Technological Features of Producing High-Index Oils in the Alkylation Process

open access: yesEurasian Chemico-Technological Journal
This article presents the results of studies on key technological parameters-namely temperature and the use of modified ZSM-5 catalysts with Zr and Fe-in the alkylation process aimed at producing high-viscosity-index oils.
G.A. Huseynova   +3 more
doaj   +1 more source

Optical Investigations of Intergrowth Effects in the Zeolite Catalysts ZSM-5 and ZSM-8

open access: yes, 1994
X-ray precession photographs and optical investigations of TPA-ZSM-5 (silicalite) and TEA-ZSM-8 zeolites reveal that ZSM-8 consists of two interpenetrating species rotated by 90° round the crystallographic c axis similarly to ZSM-5.
Fischer, R.   +3 more
core   +1 more source

An Investigation on the Catalytic Degradation of Dyeing Wastewater with Fe-ZSM-5 Zeolite

open access: yesYankuang ceshi, 2013
A homogeneous ferrous salt catalyst was used in the traditional Fenton oxidation technology for dyeing wastewater. However, it was difficult to avoid the secondary pollution and loss of ferrous ions.
BI Hai-chao   +3 more
doaj  

Effective and selective adsorption of methyl tert-butyl ether on ZSM-5 zeolite: a comparative study

open access: yesFrontiers in Chemistry
The extensive use of methyl tert-butyl ether (MTBE) as a gasoline additive has caused serious environmental problems that need to be addressed urgently.
Tingyu Hua   +3 more
doaj   +1 more source

FTIR data for (a) the ZSM-5, (b) Fe-ZSM-5, and (c) Fe(byp) complex.

open access: yes, 2015
FTIR data for (a) the ZSM-5, (b) Fe-ZSM-5, and (c) Fe(byp) complex.
Abdul Aziz Abdul Raman (718557)   +3 more
core   +1 more source

Preparação do sistema Fe2O3/ZSM-5 para uso como catalisador na reação foto-Fenton

open access: yesCerâmica
Resumo Este trabalho objetivou a preparação da zeólita ZSM-5 suportada com nanopartículas de óxido de ferro para uso como catalisador na degradação de um poluente orgânico em solução aquosa a partir do processo foto-Fenton. A zeólita foi preparada usando
J. S. de Oliveira   +4 more
doaj   +1 more source

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