Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Ahmed A. El-Shafei"'
Publikováno v:
Delta Journal of Ophthalmology, Vol 22, Iss 3, Pp 222-229 (2021)
Aim This is a prospective comparative study of the macular morphology and visual outcome after epiretinal membrane (ERM) removal with and without internal limiting membrane (ILM) peeling in cases of idiopathic ERM. The study was carried out in the Re
Externí odkaz:
https://doaj.org/article/1d4a4b3e1f4b4b43928fb45bdb2a8cb4
Autor:
Ahmed A. El-Shafei, Mohamed A. Mattar
Publikováno v:
Agronomy, Vol 12, Iss 7, p 1488 (2022)
Water is a key factor in global food security, which is critical to agriculture. The use of mathematical models is a strategy for managing water use in agriculture, and it is an effective way to predict the effect of irrigation management on crop yie
Externí odkaz:
https://doaj.org/article/b9cfd87d162f4a30bf9e85b8475d3e5f
Autor:
Dilip Kumar Roy, Tapash Kumar Sarkar, Sheikh Shamshul Alam Kamar, Torsha Goswami, Md Abdul Muktadir, Hussein M. Al-Ghobari, Abed Alataway, Ahmed Z. Dewidar, Ahmed A. El-Shafei, Mohamed A. Mattar
Publikováno v:
Agronomy, Vol 12, Iss 3, p 594 (2022)
Precise forecasting of reference evapotranspiration (ET0) is one of the critical initial steps in determining crop water requirements, which contributes to the reliable management and long-term planning of the world’s scarce water sources. This stu
Externí odkaz:
https://doaj.org/article/502b0cf5dba3427e9b96203bd5b6008d
Autor:
Najm-ul-Seher, Maqshoof Ahmad, Iqra Ahmad, Farheen Nazli, Muhammad Zahid Mumtaz, Muhammad Latif, Mobarak S. Al-Mosallam, Fahad S. Alotaibi, Ahmed Z. Dewidar, Mohamed A. Mattar, Ahmed A. El-Shafei
Publikováno v:
Agronomy, Vol 11, Iss 12, p 2482 (2021)
Irrigation with sewage-contaminated water poses a serious threat to food security, particularly in developing countries. Heavy metal tolerant bacteria are sustainable alternatives for the removal of wastewater contaminants. In the present study, four
Externí odkaz:
https://doaj.org/article/fb7c27cc0dff4ebaa23cbbe18e7f8d19
Autor:
Abdulhalim H. Farah, Hussein M. Al-Ghobari, Tarek K. Zin El-Abedin, Mohammed S. Alrasasimah, Ahmed A. El-Shafei
Publikováno v:
Agronomy, Vol 11, Iss 4, p 706 (2021)
Practical and sustainable water management systems are needed in arid regions due to water shortages and climate change. Therefore, an experiment was initiated in winter (WS) and spring (SS), to investigate integrating deficit irrigation, associated
Externí odkaz:
https://doaj.org/article/8bd9e5ecfe5445b8b5d0545b7f2e29de
Publikováno v:
The Egyptian International Journal of Engineering Sciences and Technology. 36:33-42
This paper presents the two uncoupled elastoplastic-damage models; uncoupled Lemaitre’s and Vaz’s damage models. The two models are implemented into the finite element ABAQUS software using user routine UMAT to analyze and predict damage and dama
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d830126c27acf9c94a6eb4913c9876e
https://doi.org/10.21608/eijest.2021.69915.1063
https://doi.org/10.21608/eijest.2021.69915.1063
Autor:
Hosam O. Elansary, Agnieszka Szopa, Paweł Kubica, Halina Ekiert, Fahed A. Al-Mana, Ahmed A. El-Shafei
Publikováno v:
Plants, Vol 9, Iss 9, p 1086 (2020)
Frangula alnus and Peganum harmala populations growing in Saudi Arabia might be rich sources of natural compounds with important biological activities. A high performance liquid chromatography diode array revealed several polyphenols in the leaf extr
Externí odkaz:
https://doaj.org/article/0b63cf70c9394ca89988355d9f9e9b5c
Autor:
Mohamed Ashour, Ahmed A. El-Shafei, Hanan M. Khairy, Doaa Y. Abd-Elkader, Mohamed A. Mattar, Abed Alataway, Shimaa M. Hassan
Publikováno v:
Agronomy, Vol 10, Iss 3, p 420 (2020)
We performed field experiments to evaluate the influence of two extraction treatments, seaweed (Pterocladia capillacea S.G. Gmelin) water extraction (WE) and ultrasound-assisted water extraction (USWE) at three concentrations (5%, 10%, and 15%), as w
Externí odkaz:
https://doaj.org/article/09615aaa69f641f9a77f3a1a757441b8
Publikováno v:
Mechanics of Advanced Materials and Structures. 29:6485-6494
In the computational damage mechanics, the coupled elastoplastic damage model involves a nonsymmetric tangent operator. This implies that a sparse matrix solver is needed, which means more computat...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8fbff10b71569707d97ed7e79ac0fd2
https://doi.org/10.1080/15376494.2021.1980923
https://doi.org/10.1080/15376494.2021.1980923
Publikováno v:
Ceramics International. 47:3444-3461
The mechanical properties of materials are greatly affected by the occurrence of the first damage during the loading process. This study presents a comprehensive investigation of the effect of particulate shape and combination of two shapes or more,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93f1293e5cd7b21bc63e58ccf17dd732
https://doi.org/10.1016/j.ceramint.2020.09.189
https://doi.org/10.1016/j.ceramint.2020.09.189