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24篇 您的检索式:作者名="Mohammad BAHRAMI"
    题名 作者 年代 出处 被引量
1Warpage and Shrinkage Optimization of Injection-Molded Plastic Spoon Parts for Biodegradable Polymers Using Taguchi, ANOVA and Artificial Neural Network Methods显示文摘In this study, it is attempted to give an insight into the injection processability of three self-prepared polymers from A to Z. This work presents material analysis, injection molding simulation, design of experiments alongside considering all interaction effects of controlling parameters carefully for green biodegradable polymeric systems, including polylactic acid(PLA), polylactic acid-thermoplastic polyurethane(PLA-TPU) and polylactic acid-thermoplastic starch(PLA-TPS). The experiments were carried out using injection molding simulation software Autodesk Moldflow?in order to minimize warpage and volumetric shrinkage for each of the mentioned systems. The analysis was conducted by changing five significant processing parameters, including coolant temperature, packing time, packing pressure, mold temperature and melt temperature. Taguchi's L27(35) orthogonal array was selected as an efficient method for design of simulations in order to consider the interaction effects of the parameters and reduce spurious simulations. Meanwhile, artificial neural network(ANN) was also used for pattern recognition and optimization through modifying the processing conditions. The Taguchi coupled analysis of variance(ANOVA) and ANN analysis resulted in definition of optimum levels for each factor by two completely different methods. According to the results, melting temperature, coolant temperature and packing time had significant influence on the shrinkage and warpage. The ANN optimal level selection for minimization of shrinkage and/or warpage is in good agreement with ANOVA optimal level selection results. This investigation indicates that PLA-TPU compound exhibits the highest resistance to warpage and shrinkage defects compared to the other studied compounds.Erfan Oliaei Behzad Shiroud Heidari Seyed Mohammad Davachi Mozhgan Bahrami Saeed Davoodi Iman Hejazi Javad Seyfi 2016Journal of Materials Science & Technology2016,32,8:26
2翼状胬肉:羊膜移植和自体结膜瓣移植(英文)显示文摘目的:比较原发性和复发性翼状胬肉羊膜移植术和自体结膜瓣移植术的效果,测定指标为术后复发率。方法:对从2004-04/2006-02连续翼状胬肉病例作前瞻性研究。患者被随机分为2组:羊膜移植组(26例)和自体结膜瓣移植组(24例)。所有病例均用羊膜移植术或自体结膜瓣移植术,并广泛切除纤维血管组织。随访24mo观察复发和并发症。手术操作由同一位手术医师施行。对人口统计变数、手术技术、复发和术后并发症的相关性进行分析。结果:患者男女比例为4∶1,右眼与左眼的比例为3∶2。其中70%翼状胬肉是原发性,30%为复发。最常见的临床症状是眼部充血和视力下降,最常见的并发症是复发和角膜瘢痕。随访1mo,羊膜移植组和自体结膜瓣移植组的复发率分别为3.8%,8.3%,随访24mo后比例上升为46.2%,25%。结论:自体结膜瓣移植术后2a随访的成功率更好。翼状胬肉羊膜移植术复发率高,不被广泛接受。Mohammad Reza Besharati Seyed Ali Mohammad Miratashi Amir Bahrami Ahmadi 2006国际眼科杂志2006,6,6:7
3Intravenous transplantation of bone marrow mesenchymal stem cells promotes neural regeneration after traumatic brain injury显示文摘To investigate the supplement of lost nerve cells in rats with traumatic brain injury by intravenous administration of allogenic bone marrow mesenchymal stem cells, this study established a Wistar rat model of traumatic brain injury by weight drop impact acceleration method and administered 3 × 106 rat bone marrow mesenchymal stem cells via the lateral tail vein. At 14 days after cell transplantation, bone marrow mesenchymal stem cells differentiated into neurons and astrocytes in injured rat cerebral cortex and rat neurological function was improved significantly. These findings suggest that intravenously administered bone marrow mesenchymal stem cells can promote nerve cell regeneration in injured cerebral cortex, which supplement the lost nerve cells.Fatemeh Anbari Mohammad Ali Khalili Ahmad Reza Bahrami Arezoo Khoradmehr Fatemeh Sadeghian Farzaneh Fesahat Ali Nabi 2014Neural Regeneration Research2014,9,9:6
4Microbiostratigraphy of Kazhdumi Formation in the Northwestern Shiraz (Southwest Iran) on the Basis of Foraminifera and Calcareous Algae显示文摘与 222 m 的厚度,中间的白垩纪 Kazhdumi 形成属于 Bangestan 组并且发生在 Zagros 在西南伊朗的合拢的地区。有 Dariyan 形成的更低的边界是 disconformable,它被氧化铁和海绿石认出。公认的微化石是 Valvulammina sp, Scandonea sp, Daxia cenomana, Choffatela sp, Pseudolituonella reicheli 和石灰质的 algae-Lithocodium aggregatum (它属于 Sarvak 形成) ,代表 Cenomanian 的开始。另外的微化石是:Ammobaculites goodlandensis, Marsonella trochus, Hemicyclammina sigali, Praechrysalidina infracretacea, Orbitolina gr。concava, Orbitolina (conicorbitolina ) conica, Orbitolina subconcava, Salpingoporella sp, Trinocladus tripolitanus, Trinocladus sp, Permocalculus irenae 和 Dissocladella deserta。这些微化石能被分类进五个集合地区。Mahnaz Parvaneh-Nejad SHIRAZI Mohammad BAHRAMI Bahman REZAEE Shahin GHARAMANI 2011Acta Geologica Sinica(English Edition)2011,85,4:3
5Prioritization of factors related to mental health of women during an earthquake:A qualitative study显示文摘BACKGROUND: According to the fact that women account for the highest rate of victims of mental health loss during disasters, prioritization of their requirements is of remarkable signifi cance. Therefore, the present study was carried out with the aim to prioritize factors related to women's mental health during an earthquake. METHODS: This study was conducted using the Delphi method in 2017. Participants consisted of experts including psychologists, counselors and psychiatrists, social medicine specialists, and psychiatric-mental health nurses with experience in service and disaster awareness, especially earthquake. They were selected using purposive and snowball sampling methods. The Delphi method was used in 2 rounds with 21 components and the fi nal attendance of 19 participants and the collective agreement of 75%. RESULTS: Of the 21 factors related to women's mental health during the earthquake, the following components were, respectively, preferred by the participants: psychological well-being training, group relationships and support of women in emergency situations, fair treatment in the provision of rights and services to women, crisis awareness and management of behavior and diffi cult conditions, and social security during disasters with the total mean standard deviation (SD) of 13.4 (2.4), 13.0 (2.4), 12.7 (2.5), 12.5 (2.4), and 12.3 (2.2), respectively. CONCLUSION: Training in the fi eld of psychology and disasters, and social and cultural factors were prioritized among factors related to women's mental health during an earthquake. Therefore, the results of this study can be applied by the planners and executives of mental health, women and disasters, and the women's community itself.Rahele Samouei Shahin Shooshtari Masud Bahrami Mohammad Reza Abedi Mohammad Reza Maracy 2019World Journal of Emergency Medicine2019,10,3:3
6Facies analysis and depositional environments of the OligoceneeMiocene Asmari Formation, Zagros Basin, Iran显示文摘The Asmari Formation(a giant hydrocarbon reservoir)is a thick carbonate sequence of the Oligocenee Miocene in the Zagros Basin,southwest of Iran.This formation is exposed at Tang-e-Lendeh in the Fars interior zone with a thickness of 190 m comprising medium and thick to massive bedded carbonates.The age of the Asmari Formation in the study area is the late Oligocene(Chattian)eearly Miocene(Burdigalian).Ten microfacies are defned,characterizing a gradual shallowing upward trend;the related environments are as follows:open marine(MF 8e10),restricted lagoon(MF 6e7),shoal(MF 3e5),lagoon(MF 2),and tidal fat(MF 1).Based on the environmental interpretations,a homoclinal ramp consisting of inner and middle parts prevails.MF 3e7 are characterized by the occurrence of large and small porcelaneous benthic foraminifera representing a shallow-water setting of an inner ramp,infuenced by wave and tidal processes.MF 8e10,with large particles of coral and algae,represent a deeper fair weather wave base of a middle ramp setting.Mohammad Sahraeyan Mohammad Bahrami Solmaz Arzaghi 2014Geoscience Frontiers2014,5,1:3
7Biostratigraphy and Paleoecology of Maastrichtian Sediments in the Zagros Basin, Iran显示文摘To enable the lithostratigraphic and biostratigraphic study of the Gurpi Formation,within the ‘Dezak' or Globigerina Marl,a stratigraphic section at Booraki,located to the NNW of Shiraz,SW Iran,through the late Cretaceous was examined.The formation consists of shale and greenish-gray marls interbedded with cream limestone,brown sandstones and siltstones with an exposed thickness of 160 m in the studied section.Samples were taken at regular intervals in all yielding 14 genera and 16 different species of benthic and planktic foraminifera that allowed determination of the age of the beds as Maastrichtian.To examine the paleoecology of the formation,some important ecological factors including water level,salinity,and oxygen regime change during the depositional courses of the formation were analyzed.The density of foraminiferans decreases from the base to top of the Gurpi Formation whereas the ratio of planktic to benthic Foraminifera(i.e.,P/B) and proportion of shallow-water fauna increase.These foraminiferal changes indicate an increase and decrease in depth,temperature,salinity and oxygen,respectively,at the base and top of the Formation.Mahnaz Parvaneh Nejad SHIRAZI Pegah SHAMS Mohammad BAHRAMI 2013Acta Geologica Sinica(English Edition)2013,87,5:2
8Improvement in social dysfunction of children with autism spectrum disorder following long term Kata techniques training显示文摘Ahmadreza Movahedi Fatimah Bahrami Sayed Mohammad Marandi Ahmad Abedi 2013Research in Autism Spectrum Disorders2013,,9:1
9Oxidation of dyes from colored wastewater using activated carbon/hydrogen peroxide显示文摘Shooka Khorramfar Niyaz Mohammad Mahmoodi Mokhtar Arami Hajir Bahrami 2011Desalination2011,,1:1
10Applying a Neural Network algorithm to Distributor selection problem显示文摘Mazaher Ghorbani S. Mohammad Arabzad Mahdi Bahrami 2012Procedia - Social and Behavioral Sciences2012,,:1
11Gases Brownian Motion Optimization: an Algorithm for Optimization 显示文摘Marjan Abdechiri Mohammad Reza Meybodi Helena Bahrami 2013Applied Soft Computing (S1568-4946)2013,13,5:1
12Integrating Kano-DEA Models for Distribution Evaluation Problem显示文摘S Mohammad Arabzad Mahdi Bahrami Mazaher Ghorbaniz 2012Procedia- Social and Behavioral Sciences2012,41,:1
13Mesoporous silica-functionalized dual Br?nsted acidic ionic liquid as an efficient catalyst for thioacetalization of carbonyl compounds in water显示文摘Majid Vafaeezadeh Zahra Bahrami Dizicheh Mohammad Mahmoodi Hashemi 2013Catalysis Communications2013,,:1
14Innovation in market management by utilizing business intelligence: Introducing proposed framework 显示文摘Mahdi Bahrami S Mohammad Arabzad Mazaher Ghorbani 2012Proeedia-Social and Behavioral Sciences2012,41,:1
15A cloud computing framework on demand side management game in smart energy hubs 显示文摘Ar Sheikhi Mohammad Rayati Shahah Bahrami 2015Intemational Journal of Electrical Power & Energy Systems2015,,64:1
16TNF-α release capacity is suppressed immediately after hemorrhage andresuscitation显示文摘ObjectiveTo 在经皮的内视镜的腰部的 discectomy (PELD ) 期间估计类固醇的硬膜上或静脉内的管理的早药品效果 .Methods28 由于在 2014 年 11 月和 2016 年 1 月之间的大腰部的圆盘形成疝经历了 PELD 的连续病人被跟随在上面为 6 个月。这些病人根据他们在 PELD 以后接受了的治疗被划分成二个组。14 个病人(组 A ) 被 PELD 和硬膜上的类固醇对待,当另外的 14 个病人(组 B ) 被 PELD 和静脉内的类固醇对待时。我们由外科手术前、手术后的视觉类似物规模(管) 评估了有效性为背和腿疼痛的分数,和在在经由临床的图表和电话的外科以后的 3 个星期的手术后的 Oswestry 残疾索引(ODI ) 会见。因为 well.ResultsThere 是在管的重要减少,工作的手术后的医院停留和时间回来被调查(回来,腿) , ODI,和时间回来工作(p < 0.05 ) 。为管(背) ,组 A 在外科以后在 1 天和 1 个星期与组 B 相比显示出重要减少(p = 0.011, p = 0.017 ) 。至于管(腿) ,组 A 在 1 天, 1 个星期, 3 个星期,和 3 月后续考试与组 B 相比显示出重要减少(p = 0.002, p = 0.006, p < 0.001, p < 0.001 ) 。为 ODI,组 A 与组 B 相比显示出著名减少(p < 0.001 ) 。在二个组的手术后的医院停留不是统计上不同的(p = 0.636 ) 。但是在组 A 工作的时间回来在组 B 是比那显著地短的(p = 0.023 ).ConclusionPatients 为大腰部的圆盘形成疝与硬膜上的类固醇管理经历了 PELD 的人,与与静脉内的类固醇管理经历了 PELD 的那些相比显示出有利药品效果。Arian Bahrami Mohammad Jafarmadar Heinz Redl Soheyl Bahrami Jian-Xin Jiang 2017Chinese Journal of Traumatology2017,20,4:1
17Highly selective catalytic Friedel-Craftssulfonylation of aromatic compounds using a FeCl3-based ionic liquid 显示文摘Bahrami Kiumars Khodei Mohammad Mehdi Shahba-zi Fomeida 2008Tetrahedron Letters2008,49,24:1
18A review of software architecture forcollaborative softwares显示文摘Bahrami Mehdi Mohammad Bahrami 2012Advanced Materials Research2012,433,:1
19The Effect of Different Levels of Organic and Inorganic Chromium Supplementation on Production Performance, Carcass Traits and Some Blood Parameters of Broiler Chicken Under Heat Stress Condition显示文摘Mohammad Mehdi Moeini Akram Bahrami Shahab Ghazi Mohammad Reza Targhibi 2011Biological Trace Element Research2011,,1:1
20Stratigraphy of the Alveolina elliptica group from the Middle Eocene of Iran:Calibration with calcareous nannofossils biozones and description of Alveolina ozcani n. sp.显示文摘Precise taxonomy and the chronostratigraphic calibration of the Middle Eocene Alveolina from Central Iran is here undertaken from the Chah-Talkh section of the southern Sabzevar region(Central Iran). We have identified Alveolina kieli, Alveolina stercusmuris and Alveolina nuttalli along with the new species Alveolina ozcani n. sp. that we include into the Alveolina elliptica group. We have also found Nummulites uroniensis, Nummulites obesus and Nummulites cf. verneuili and associated calcareous nannofossils that look reliable to make thoughtful correlations with the Shallow Benthic Zones(SBZ). The foraminiferal biostratigraphy suggests an assignment to the upper part of the lower Lutetian-lower part of the middle Lutetian,SBZ13(Middle Eocene), further strengthened through the identification of the calcareous nannofossil NP14b-NP15b or CNE8-CNE10 biozones, providing a solid correlation with the global stratigraphic standards.Mehdi Hadi Lorenzo Consorti Ali Bahrami Mohammad Parandavar Saeed Khorramdel 2024Journal of Palaeogeography2024,13,1:0
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