Synthesis and characterization of zirconium oxide nanoparticles using Z. officinale and S. aromaticum plant extracts for antibacterial application
(2)
(1)
Publication Date
Mon Oct 16 2023
Journal Name
Indonesian Journal Of Chemistry
Synthesis of Zn(II) and Co(II) Complexes with a Schiff Base Derived from Malonic Acid Dihydrazide for Photo-Stabilizers of Polystyrene
In this study, novel Schiff base complexes with Zn(II) and Co(II) ions were successfully synthesized. The malonic acid dihydrazide was converted into the Schiff base ligand by combining it with 1-hydroxy-2-naphthaldehyde, and the last step required reacting it with the appropriate metal(II) chloride to produce pure target complexes. The generated complexes were thoroughly characterized using FTIR, 1H-NMR, 13C-NMR, GC-mass, and UV-Vis spectroscopies. In order to photo-stabilize polystyrene (PS) and reduce the photodegradation of its polymeric chains, these chemicals have been used in this work. The efficiency of the generated complexes as photo-stabilizers was evaluated using a variety of techniques, including FTIR, weight loss, visc
... Show MorePublication Date
Tue Dec 01 2015
Journal Name
Journal Of Al-nahrain University-science
Publication Date
Sat Feb 01 2020
Journal Name
Journal Of Economics And Administrative Sciences
Applying some hybrid models for modeling bivariate time series assuming different distributions for random error with a practical application
أنمُوذج
أنمُوذج
التوزيع الطبيعي القياسي
توزيع
توزع الخطأ العام
سعر الصرف
معدل البطالـة.
: Bivariate time series ARMAX-GARCH
ARMAX-GARCHX
Normal distribution
Student-t distribution
General Error distribution (GED)
Unemployment rate
Exchange rate.
Abstract
Bivariate time series modeling and forecasting have become a promising field of applied studies in recent times. For this purpose, the Linear Autoregressive Moving Average with exogenous variable ARMAX model is the most widely used technique over the past few years in modeling and forecasting this type of data. The most important assumptions of this model are linearity and homogenous for random error variance of the appropriate model. In practice, these two assumptions are often violated, so the Generalized Autoregressive Conditional Heteroscedasticity (ARCH) and (GARCH) with exogenous varia
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Publication Date
Tue Aug 06 2024
Journal Name
Fullerenes, Nanotubes And Carbon Nanostructures
(4)
(4)
Publication Date
Thu Apr 29 2010
Journal Name
Journal Of The First Specialized National Conference In Chemistry 29-30 April 2010 University Of Thi-qar College Of Science
Publication Date
Thu Apr 27 2023
Journal Name
Medical Journal Of Babylon
(8)
Publication Date
Thu Aug 01 2024
Journal Name
Journal Of Taibah University Medical Sciences
(1)
Publication Date
Tue Jan 01 2019
Journal Name
Energy Procedia
(54)
(48)
Publication Date
Thu Feb 01 2018
Journal Name
Applied Energy
(292)
(277)
Publication Date
Sun Mar 01 2020
Journal Name
Food Hydrocolloids
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