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您的检索式：作者名="Behnam Rahimi"
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| 1 | Microstructural characteristics and mechanical properties of Al-2024 alloy processed via a rheocasting route显示文摘This article reports the effects of stirring speed and T6 heat treatment on the microstructure and mechanical properties of Al-2024 alloy synthesized by a rheocasting process.There was a decrease in grain size of α-Al particles corresponding to an increase in stirring speed.By increasing the stirring speed,however,the globularity of matrix particles first increased and then declined.It was also found that the hardness,compressive strength,and compressive strain increased with the increase of stirring speed.Microstructural studies revealed the presence of nonsoluble Al_(15)(CuFeMn)_3Si_2 phase in the vicinity of CuAl_2 in the rheocast samples.The required time for the solution treatment stage was also influenced by stirring speed;the solution treatment time decreased with the increase in stirring speed.Furthermore,the rheocast samples required a longer homogenization period compared to conventionally wrought alloys.Improvements in hardness and compressive properties were observed after T6 heat treatment. | Behnam Rahimi Hamed Khosravi Mohsen Haddad-Sabzevar | 2015 | International Journal of Minerals,Metallurgy and Materials2015，22，1： | 3 |
| 2 | the effect ofrepetitive spreading depression on neuronal damage in juvenilerat brain 显示文摘 | JAFARIAN M RAHIMI S BEHNAM F | 2010 | Neuroscience2010，169，1： | 1 |
| 3 | Evaluating the safety and efficacy of mesenchymal stem cell-derived exosomes for treatment of refractory perianal fistula in IBD patients:clinical trial phaseⅠ显示文摘Background:Exosome administration is a novel medical approach that promises excellent immunomodulatory properties without the conventional side effects of current antitumor necrosis factor drugs and stemcells.This study aimed to assess the safety and efficacy of usingmesenchymal stemcell(MSC)exosomes to treat refractory fistulas in patients with inflammatory bowel disease.Methods:MSCs were derived from the umbilical cords and their exosomes were isolated.Five patients with refractory perianal Crohn’s disease fistulas with amedian age of 35 years(range 31–47 years)were enrolled in the study.Exosome injections were administered in the operating roomto patients with refractory fistula(fistulas that are irresponsive to anti-tumor necrosis factor-αadministration within 6months).Sixmonths later,a physical examination,face-to-face interviews,andmagnetic resonance imaging were employed to evaluate the therapy responses of patients.Results:The outcomes within 6 months after initiation of therapy showed that four patients had responded to therapy.Three patients who received exosome injections exhibited complete healing,while one reported no improvement and active discharge from the fistula site.In addition,five patients(100%)reported neither systemic nor local adverse effects.Conclusions:Injection of exosomes extracted from MSCs demonstrates safety and a satisfactory therapeutic effect,as evidenced in this and other studies,and may play a significant role in the future treatment of gastrointestinal fistulas. | Hojjatollah Nazari Foroogh Alborzi Asieh Heirani-Tabasi Alireza Hadizadeh Reza Akbari Asbagh Behnam Behboudi Mohammad Sadegh Fazeli Mojgan Rahimi Mohammad Reza Keramati Amir Keshvari Alireza Kazemeini Masoud Soleimani Seyed Mohsen Ahmadi Tafti | 2022 | Gastroenterology Report2022，10，1： | 0 |
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