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18 results on '"Mohammadi, Mehran"'

3. Pomegranate: A review of the heavenly healer's past, present, and future.

Author

Mohammadi, Mehran, Boghrati, Zahra, Emami, Seyed Ahmad, and Akaberi, Maryam

Subjects
*POMEGRANATE, *TRADITIONAL knowledge, *SCIENCE databases, *HERBAL medicine, *TRADITIONAL medicine, *ELLAGIC acid, *DENTAL technology
Abstract

In the great Persian Empire, pomegranate (Punica granatum L.) had a wide reputation for use both as an herbal medicine and nutritious food. It was also a symbol of peace and love according to Achaemenid limestones in the great Persia. This paper aims to review the traditional uses of pomegranate in Persian and Islamic traditional medicine and have thorough and current information regarding the pharmacology and phytochemistry of this valuable plant for practical use and further research. Relevant information about P. granatum was collected from scientific publishers and databases including Elsevier, Wiley, PubMed, and Google Scholar between 1950 and 2022. The traditional knowledge was extracted from Persian and Islamic traditional textbooks. Based on traditional textbooks, pomegranate has beneficial effects on diseases related to gastrointestinal, upper and lower respiratory, visual, and reproductive systems. In addition, pomegranate and its preparations have been prescribed for treating metabolic disorders, skin problems, and wounds as well as dental protection. Preclinical and clinical evidence supports many therapeutic potentials of pomegranate in traditional medicine. Its therapeutic effects are mostly attributed to its polyphenols. The knowledge in Persian and Islamic traditional textbooks about pomegranate and its preparations can be used as a guide for further preclinical and mainly clinical studies to discover the therapeutic potential of this valuable plant. [ABSTRACT FROM AUTHOR]

Published
2023
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4. sj-docx-1-pie-10.1177_09544089231163113 - Supplemental material for Numerical analysis on the impact of axial grooves on vortex cooling behavior in gas turbine blade's leading edge

Author

Mohammadi, Mehran, Hosseinzadeh, Khashayar, and Ganji, Davood Domiri

Subjects
FOS: Materials engineering, FOS: Other engineering and technologies, 91299 Materials Engineering not elsewhere classified, 99999 Engineering not elsewhere classified
Abstract

Supplemental material, sj-docx-1-pie-10.1177_09544089231163113 for Numerical analysis on the impact of axial grooves on vortex cooling behavior in gas turbine blade's leading edge by Mehran Mohammadi, Khashayar Hosseinzadeh and Davood Domiri Ganji in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

Published
2023
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15. Numerical analysis on the impact of axial grooves on vortex cooling behavior in gas turbine blade's leading edge

Author

Mohammadi, Mehran, Hosseinzadeh, Khashayar, and Ganji, Davood Domiri

Abstract

In this article, a novel design for the vortex chamber with the axial grooves used for cooling the turbine blades leading edge is presented. The vortex chamber has nine tangential inlets that make a vortex in the chamber and an axial groove located along with the chamber. In addition to enhance the flow turbulence, these grooves cause an increasing heat transfer by cutting the thermal boundary layer and reformation. For this purpose, a 3D model based on Reynolds-averaged Navier–Stokes (RANS) equation was simulated in Ansys Fluent software. After comparing different turbulent models and experimental data, results showed Reynolds stress model (RSM) mode presents the best accuracy. Grooves with different sizes, positions, and numbers are used to investigate the vortex structure and the heat transfer mechanism. This study revealed that a chamber with grooves has a higher heat transfer in comparison with chambers without grooves. The best performance is achieved in a chamber with three grooves, where the average Nusselt number is increased by more than 4%. In this method, pressure difference between the inlet and outlet in the chamber with and without grooves are not very significant, and the highest friction factor happened in the case with three grooves.

Published
2024
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18. A New dehydration reactions of alcohol, and epoxides with bis phosphorochloridate

Author

Mohammadi, Mehran, Demir, Ayhan Sıtkı, and Diğer

Subjects
Chemistry, Dehydration, Diols, Alcohols, Olefines, Kimya, Epoxide, Phosphoro chloridate
Abstract

öz BİS(DİMETİLAMİNO)FOSFOROKLORİDAT İLE EPOKSİTLER VE ALKOLLERİN DEHİDRAS YONUNDA YENİ BİR YÖNTEM MOHAMMADI, Mehran Yüksek Lisans Tezi, Kimya Anabilim Dalı Tez Yöneticisi: Prof. Dr. Ayhan S.Demir Haziran, 1994, 55 sayfa Bu çalışmada, bis(dimetilamino)fosforokloridat, epoksit diol ve alkollerden benzer yapılardaki olefinlerinin eldesi için dehidrasyon ajanı olarak denendi. Bis(dimetilamino)fosforokloridat yönteminin yüksek verim, basitlik, seçicilik ve diğer avantajlarının açıklanabilmesi için HMPA (hekzametilfosforamid) dehidrasyon yönteminin mekanizmasıyla karşılaştırıldı. Bis(dimetilamino)fosforokloridat ile steroid yapılarının direk ve seçici aromatizasyonu gerçekleştirildi ve ayrıca mekanizmasında açıklandı. Anahtar Kelimeler: Eliminasyon, Dien Sentezi, Bis(dimetilamino)fosforokloridat Bilim Dalı Sayısal Kodu: 405.02.01. iv ABSTRACT A NEW DEHYDRATION REACTIONS OF ALCOHOLS, AND EPOXIDES WITH BIS(DIMETHYLAMINO)PHOSPHOROCHLORIDATE MOHAMMADI, Mehran M.S. in Chemistry Supervisor: Prof. Dr. Ayhan S. Demir June, 1994, 55 pages. In this study bis(dimethylamine)phosphorochloridate was examined as dehydration reagent to obtain corresponding olefins of alcohol, diol, and epoxides. Also the mechanism of dehydration pathway of HMPA (hexamethylphosphoramide) was compared with that of bis(dimethylamine)phosphorochloridate to explain the high yield, simplicity, selectivity and other advantages of bis(dimethylamine)phosphorochloridate. The direct and selective aromatization of steroid structures by bis(dimethylamine)phosphorochloridate was achieved and its mechanism was studied. Key words : Elimination, Diene Synthesis, Bis(dimethylamine)phosphor chloridate. Science code : 405.02.01 in 55

Published
1994

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