Zobrazeno 1 - 10
of 202
pro vyhledávání: '"Ali Allahverdi"'
Publikováno v:
Circular Economy, Vol 3, Iss 3, Pp 100100- (2024)
Malachite green is a persistent, bioaccumulative, mutagenic, carcinogenic, and teratogenic dye that poses significant risks in water sources, making its removal from water a critical necessity. This study aims to fabricate a sorbent comprising amorph
Externí odkaz:
https://doaj.org/article/b8dfc28f108149d5952f90fad69b479c
Publikováno v:
Iranian Journal of Materials Science and Engineering, Vol 19, Iss 1, Pp 1-17 (2022)
The aim of the present research work is to evaluate the feasibility of processing and utilizing steel slag in binary and ternary cement blends with limestone. The physical and microstructural properties of binary and ternary composite cements produ
Externí odkaz:
https://doaj.org/article/dbfa96bd373f48758faa0c8693c094f4
Publikováno v:
International Journal of Industrial Engineering Computations, Vol 13, Iss 4, Pp 543-556 (2022)
We address a manufacturing environment with the no-wait constraint which is common in industries such as metal, plastic, and semiconductor. Setup times are modelled as uncertain with the objective of minimizing maximum lateness which is an important
Externí odkaz:
https://doaj.org/article/a080e3bbacf84075bfaa3047d7b196a3
Publikováno v:
International Journal of Industrial Engineering Computations, Vol 13, Iss 1, Pp 43-50 (2022)
We consider a no-wait m-machine flowshop scheduling problem which is common in different manufacturing industries such as steel, pharmaceutical, and chemical. The objective is to minimize total tardiness since it minimizes penalty costs and loss of c
Externí odkaz:
https://doaj.org/article/a4a5f5ba5a3f4c6587dfe86a1860efa6
Autor:
Jafar Shafaghat, Ali Allahverdi
Publikováno v:
Iranian Journal of Materials Science and Engineering, Vol 18, Iss 1, Pp 40-47 (2021)
Microscopic studies has shown that adjacent to the interface between cement paste and aggregate, there exists an area with high porosity and low binding compounds that is referred to as interfacial transition zone (ITZ). ITZ in concrete and mortar im
Externí odkaz:
https://doaj.org/article/8966005259f24fa89385f95c203ff037
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 58, Iss 3, Pp 103-114 (2019)
The reuse of spent catalysts from residue fluid catalytic cracking (RFCC) units as pozzolanic materials in cement and concrete production offers a number of important benefits. In spite of all these benefits, the durability performance of the produce
Externí odkaz:
https://doaj.org/article/5e0b323f478a407c93979fc9916086b9
Autor:
Ali Allahverdi, Mostafa Mahinroosta
Publikováno v:
Ceramics-Silikáty, Vol 60, Iss 3, Pp 169-178 (2016)
One of the common methods for quick determination of compressive strength as one of the most important properties for assessment of cement quality is to apply various modeling approaches. This study is aimed at finding a model for estimating the comp
Externí odkaz:
https://doaj.org/article/75bc5724696748f8a25775bebb2d1d4d
Publikováno v:
Ceramics-Silikáty, Vol 59, Iss 3, Pp 250-260 (2015)
In this research, through compressive strength data, the order and kinetics of alkali-activation of phosphorus slag activated with two compound activators of NaOH + Na2CO3 and Na2CO3 + Ca(OH)2, has been evaluated. The kinetics and order of alkali act
Externí odkaz:
https://doaj.org/article/601cb890d0154f869a93969139187462
Autor:
Vajihe Jafari, Ali Allahverdi
Publikováno v:
Journal of Ultrafine Grained and Nanostructured Materials, Vol 47, Iss 2, Pp 105-112 (2014)
The purpose of the present study was to synthesize and characterize nanosilica from alkali-extraction of silica fume under controlled conditions using poly (vinyl alcohol) (PVA) as a dispersing agent. The dissolution efficiency of silica fume was aff
Externí odkaz:
https://doaj.org/article/58106ea301ac404b9eb12fdb697b8dd9
Autor:
Ali Allahverdi, Zeinab Babasafari
Publikováno v:
Ceramics-Silikáty, Vol 58, Iss 2, Pp 89-94 (2014)
The aim of the present research work is to evaluate the effectiveness of one of the industrially most popular grinding aids (triethanolamine, TEA) on grindability, set and strength behavior of Portland cement in laboratory ball and vibrating disk mil
Externí odkaz:
https://doaj.org/article/9bd5f4c5d35d44f787e39c11cde68340