Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Karim Zare"'
Publikováno v:
AIMS Mathematics, Vol 9, Iss 6, Pp 15837-15856 (2024)
A Mixture of factor analyzer (MFA) model is a powerful tool to reduce the number of free parameters in high-dimensional data through the factor-analyzer technique based on the covariance matrices. This model also prepares an efficient methodology to
Externí odkaz:
https://doaj.org/article/a6b1a385328f498b81f69fb68856a547
Publikováno v:
Journal of Mathematics, Vol 2024 (2024)
Data modeling is a very crucial stage for decision making in applied sectors. Probability distributions are considered important tools for decision making. So far, numerous probability distributions have been developed and implemented. Most of these
Externí odkaz:
https://doaj.org/article/516276e8d8e64b528f9029fa430d48ca
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 40, Iss 2, Pp 417-427 (2021)
In this research, we investigated the effects of parameters, including reaction time, reaction temperature, the mass ratio (mcat./mfeed), and volume ratio (VH2O2/Vfeed) on sulfur removal conversion of light naphtha under oxidative desulfurization (OD
Externí odkaz:
https://doaj.org/article/13dfeb28ff844babb59ba5bb4dff6726
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 40, Iss 1, Pp 21-34 (2021)
In this research, various organic additives (as a chelating agent) were used to prepare NiMo/ 𝛾-Al2O3 bimetallic catalysts. Then effects of additives and pH variation were studied on textural properties, morphology, and size of nanocatalyst partic
Externí odkaz:
https://doaj.org/article/d8d3858a45ad45f29be3c030b645d6bd
Publikováno v:
شیمی کاربردی روز, Vol 15, Iss 56, Pp 51-68 (2020)
Two or more materials are combination for the composites synthesis that exhibit different physical and chemical properties than the primitive materials. Today, the use of nanocomposites as adsorbents for the treatment of dusts of dye-producing factor
Externí odkaz:
https://doaj.org/article/4284b1cd161d48b390199e2fadae210a
Autor:
Zahra Shahidian, Karim Zare
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 39, Iss 3, Pp 71-80 (2020)
A specific type of mesopore extrudates gamma alumina was prepared; which is applied as the catalyst in the heavy oil hydrodesulfurization unit. Extrudates gamma alumina has been devised the boehmite powder; several samples have been utilized to inves
Externí odkaz:
https://doaj.org/article/8444a6cd144b4f1ba7494fba403f9f8c
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 39, Iss 3, Pp 61-69 (2020)
A particular type of mesopore extrudates gamma alumina was prepared; which is used as the catalyst in the heavy oil desulfurization unit. Extrudates gamma-alumina support has been made of the boehmite powder from Nephlinsinite mine ores (Surface Area
Externí odkaz:
https://doaj.org/article/ec57841da5f84b418b4adeb377ddbc8f
Publikováno v:
Revista de Investigaciones Universidad del Quindío, Vol 31, Iss 1, Pp 41-53 (2019)
Today, using thermal and chemical reduction and solubility, graphene oxide is produced in large scale. Since there are various methods for producing graphene, each of which allocates properties to the produced graphene, the purpose of this research i
Externí odkaz:
https://doaj.org/article/bfe15343393a468c9af5c72bfac0c9c4
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 38, Iss 1, Pp 141-154 (2019)
The present work investigates the efficiency of the nickel oxide/carbon nanotube (NiO/CNT) nanocomposite for the removal of Cd2+ metal ions from an aqueous. The NiO/CNT nanocomposite was synthesized by the direct co-precipitation method in an aqueous
Externí odkaz:
https://doaj.org/article/18f0bf1674c14350b7aca5ee89636774
Publikováno v:
Mathematics, Vol 10, Iss 15, p 2820 (2022)
This work considers a multifactor linear mixed model under heteroscedasticity in random-effect factors and the skew-normal errors for modeling the correlated datasets. We implement an expectation–maximization (EM) algorithm to achieve the maximum l
Externí odkaz:
https://doaj.org/article/3341713005b94456bb8cc0f909e0a98d