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| 1 | Effects of Fe_2O_3 Nanoparticles on Water Permeability and Strength Assessments of High Strength Self-Compacting Concrete显示文摘In this work,compressive,flexural and split tensile strength together with coefficient of water absorption of high performance self-compacting concrete containing different amount of Fe2O3 nanoparticles have been investigated.The strength and the water permeability of the specimens have been improved by adding Fe2O3 nanoparticles in the cement paste up to 4.0 wt%.Fe2O3 nanoparticle as a foreign nucleation site could accelerate C-S-H gel formation as a result of increased crystalline Ca(OH)2 amount especially at the early age of hydration and hence increase the strength of the specimens.In addition,Fe2O3 nanoparticles are able to act as nanofillers and recover the pore structure of the specimens by decreasing harmful pores to improve the water permeability.Several empirical relations have been presented to predict the flexural and the split tensile strength of the specimens by means of the corresponding compressive strength at a certain age of curing.Accelerated peak appearance in conduction calorimetry tests,more weight loss in thermogravimetric analysis and more rapid appearance of peaks related to hydrated products in X-ray diffraction results indicate that Fe2O3 nanoparticles up to 4 wt% could improve the mechanical and the physical properties of the specimens. | Ali Khoshakhlagh Ali Nazari Gholamreza Khalaj | 2012 | Journal of Materials Science & Technology2012，28，1： | 11 |
| 2 | Effects of Al_2O_3 nanoparticles on properties of self compacting concrete with ground granulated blast furnace slag (GGBFS) as binder显示文摘In this work,strength assessments and percentage of water absorption of self compacting concrete containing ground granu-lated blast furnace slag (GGBFS) and Al2O3 nanoparticles as binder have been investigated.Portland cement was replaced by different amounts of GGBFS and the properties of concrete specimens were investigated.Although it negatively impacts the physical and mechanical properties of concrete at early ages of curing,GGBFS was found to improve the physical and me-chanical properties of concrete up to 45 wt% at later ages.Al2O3 nanoparticles with the average particle size of 15 nm were added partially to concrete with the optimum content of GGBFS and physical and mechanical properties of the specimens were measured.Al2O3 nanoparticle as a partial replacement of cement up to 3.0 wt% could accelerate C-S-H gel formation as a re-sult of increased crystalline Ca(OH)2 amount at the early ages and hence increase strength and improve the resistance to water permeability of concrete specimens.The increase of the Al2O3 nanoparticles’ content by more than 3.0 wt% would cause the reduction of the strength because of the decreased crystalline Ca(OH)2 content required for C-S-H gel formation.Several em-pirical relationships have been presented to predict flexural and split tensile strength of the specimens by means of the corre-sponding compressive strength at a certain age of curing.Accelerated peak appearance in conduction calorimetry tests,more weight loss in thermogravimetric analysis and more rapid appearance of the peaks related to hydrated products in X-ray dif-fraction results,all indicate that Al2O3 nanoparticles could improve mechanical and physical properties of the concrete speci-mens. | Ali NAZARI Shadi RIAHI | 2011 | Science China(Technological Sciences)2011，54，9： | 9 |
| 3 | Computer-aided design of the effects of Cr_2O_3 nanoparticles on split tensile strength and water permeability of high strength concrete显示文摘In the present paper, two models based on artificial neural networks and genetic programming for predicting split tensile strength and percentage of water absorption of concretes containing Cr2O3 nanoparticles have been developed at different ages of curing. For purpose of building these models, training and testing using experimental results for 144 specimens produced with 16 different mixture proportions were conducted. The data used in the multilayer feed forward neural networks models and input variables of genetic programming models are arranged in a format of 8 input parameters that cover the cement content, nanoparticle content, aggregate type, water content, the amount of superplasticizer, the type of curing medium, age of curing and number of testing try. According to these input parameters, in the neural networks and genetic programming models the split tensile strength and percentage of water absorption values of concretes containing Cr2O3 nanoparticles were predicted. The training and testing results in the neural network and genetic programming models have shown that every two models have strong potential for predicting the split tensile strength and percentage of water absorption values of concretes containing Cr2O3 nanoparticles. It has been found that NN and GEP models will be valid within the ranges of variables. In neural networks model, as the training and testing ended when minimum error norm of network was gained, the best results were obtained and in genetic programming model, when 4 genes were selected to construct the model, the best results were acquired. Although neural network has predicted better results, genetic programming is able to predict reasonable values with a simpler method rather than neural network. | Ali NAZARI Shadi RIAHI | 2011 | Science China(Technological Sciences)2011，54，3： | 7 |
| 4 | TiO_2 nanoparticles' effects on properties of concrete using ground granulated blast furnace slag as binder显示文摘In the present study,compressive strength,pore structure,thermal behavior and microstructure characteristics of concrete containing ground granulated blast furnace slag and TiO2 nanoparticles as binder were investigated.Portland cement was replaced by different amounts of ground granulated blast furnace slag and the properties of concrete specimens were investigated.Although it negatively impacts the properties of concrete at early ages,ground granulated blast furnace slag up to 45 wt% was found to improve the physical and mechanical properties of concrete at later ages.TiO2 nanoparticles with the average particle size of 15 nm were partially added to concrete with the optimum content of ground granulated blast furnace slag and physical and mechanical properties of the specimens were measured.TiO2 nanoparticle as a partial replacement of cement up to 3 wt% could accelerate C-S-H gel formation as a result of increased crystalline Ca(OH)2 amount at the early age of hydration and hence increase compressive strength of concrete.The increased TiO2 nanoparticles' content of more than 3 wt% may cause reduced compressive strength because of the decreased crystalline Ca(OH)2 content required for C-S-H gel formation and unsuitable dispersed nanoparticles in the concrete matrix.TiO2 nanoparticles could improve the pore structure of concrete and shift the distributed pores to harmless and less-harm pores. | NAZARI Ali RIAHI Shadi | 2011 | Science China(Technological Sciences)2011，54，11： | 7 |
| 5 | A systematic review of the effect of various interventions on reducing fatigue and sleepiness while driving显示文摘PurposeTo 当时,识别并且估价为减少疲劳和瞌睡估计干预财务的出版研究系统的评论寻找了的 driving.MethodsThis 下列电子数据库:Medline,科学直接, Scopus, EMBASE, PsycINFO,运输数据库, Cochrane, BIOSIS,知识的 ISI 网,专家道路损害杂志和澳大利亚的运输和道路索引数据库。另外的搜索包括了相关组织,包括的研究的参考书表,和在过去的 15 年以内出版的主要损害杂志的期的网站。如果他们为作为结果减少疲劳和瞌睡调查了干预 / 暴露财务,研究被包括,为瞌睡的缓解测量了任何潜在的干预并且用英语被写。因为 63 研究识别了的包括的 studies.ResultsOf 的异质,元分析没被尝试, 18 满足了包括标准。基于我们的评论的结果,当开车例如时,在世界上的许多干预被用来减少睡意行为(与旅客谈话,脸洗,听收音机,没有白酒使用,在下午12点的时候限制开车行为-上午6点等等),教育干预并且也在环境变化(例如抱怨声脱衣,V形臂章,可变消息符号,等等)。所有这些干预的效果上的元分析由于在方法论,在现在的评论的估计的 studies.ConclusionResults 报导的效果尺寸和干预的高异质是不可能的在世界的不同部分的显示出的各种各样的干预被用来催眠开车减少。尽管这些干预能与道路交通事故的高发生在国家被使用,每干预的精确效果仍然是未知的。进一步的研究根据每个国家的交通模式为每干预的效率和每干预的本地化的比较被要求。 | Seyed Saeed Hashemi Nazari Ali Moradi Khaled Rahmani | 2017 | Chinese Journal of Traumatology2017，20，5： | 5 |
| 6 | Compressive strength and abrasion resistance of concrete containing SiO_2 and CuO nanoparticles in different curing media显示文摘In the present study,abrasion resistance and compressive strength of concrete specimens containing SiO2 and CuO nanoparticles in different curing media have been investigated.Portland cement was partially replaced by up to 2.0 wt%of SiO2 and CuO nanoparticles and the mechanical properties of the produced specimens were measured.Increasing the nanoparticles content was found to increase the abrasion resistance of the specimens cured in water and saturated limewater,while this condition was not observed for compressive strength in the both curing media.The enhancement of abrasion resistance was higher for the specimens containing SiO2 nanoparticles in both curing media.Since abrasion resistance and compressive strength of the specimens followed a similar regime as the nanoparticles increased for the specimens cured in saturated limewater,some experimental relationships has been presented to correlate these two properties of concrete for this curing medium.On the whole,it has been concluded that the abrasion resistance of concrete does not only depend on the corresponding compressive strength. | Shadi RIAHI Ali NAZARI | 2011 | Science China(Technological Sciences)2011，54，9： | 3 |
| 7 | Effects of CuO Nanoparticles on Microstructure,Physical,Mechanical and Thermal Properties of Self-Compacting Cementitious Composites显示文摘In the present study,split tensile strength of self-compacting concrete with different amount of CuO nanoparticles has been investigated.CuO nanoparticles with the average particle size of 15 nm were added partially to self compacting concrete and split tensile strength of the specimens has been measured.The results indicate that CuO nanoparticles are able to improve the split tensile strength of self compacting concrete and recover the negative effects of polycarboxylate superplasticizer on split tensile strength.CuO nanoparticle as a partial replacement of cement up to 4 wt% could accelerate C-S-H gel formation as a result of increased crystalline Ca(OH)2 amount at the early ages of hydration.The increase of the CuO nanoparticles more than 4 wt% causes the decrease of the split tensile strength because of unsuitable dispersion of nanoparticles in the concrete matrix.Accelerated peak appearance in conduction calorimetry tests,more weight loss in thermogravimetric analysis and more rapid appearance of related peaks to hydrated products in X-ray diffraction(XRD) results all also indicate that CuO nanoparticles up to4 wt% could improve the mechanical and physical properties of the specimens.Finally,CuO nanoparticles could improve the pore structure of concrete and shift the distributed pores to harmless and few-harm pores. | Ali Nazari Shadi Riahi | 2011 | Journal of Materials Science & Technology2011，27，1： | 2 |
| 8 | Natural convection heat transfer enhancement of different nanofluids by adding dimple fins on a vertical channel wall显示文摘In this numerical study,natural flow and heat transfer of nanofluids with Al2O3,TiO2,Cu and CNT nanoparticles in a vertical channel with dimpled fins at Rayleigh number(Ra)of Ra=3.25×107 to Ra=1×108 are investigated by using the finite volume method.The obtained results revealed that,using CNT in volume fractions of 2%and 4%leads to significant heat transfer and atφ=6%,using TiO2 nanoparticles has a great effect on Nu number enhancement.Also,using solid nanoparticles in base fluid causes more uniform heat transfer distribution,especially in areas close to heated surface and by adding more volume fraction in base fluid,temperature level reduces.In general,according to temperature contours,reduction of wall temperature depends on the increase of Ra and volume fraction and the type of solid nanoparticles. | Milad Gholami Mohammad Reza Nazari Mohammad Hossien Talebi Farzad Pourfattah Omid Ali Akbari Davood Toghraie | 2020 | Chinese Journal of Chemical Engineering2020，28，3： | 1 |
| 9 | The effects of SiO2 nanoparticles on physical and mechanical properties of high strength compacting concrete显示文摘 | Ali Nazari Shadi Riahi | 2011 | Composites Part B2011，42，3： | 1 |
| 10 | The effect of finite duration inputs on the dynamics of a system: Proposing a new approach for cancer treatment显示文摘 | Mostafa Nazari Ali Ghaffari | 2015 | International Journal of Biomathematics2015，8，3： | 1 |
| 11 | Simulation Charpy impact energy of functionally graded steels by modified stress strain curve through mecha- nism-based strain gradient plasticity theory 显示文摘 | Ali Nazari | 2012 | Computational Materials Science2012，51，： | 1 |
| 12 | Effect of Layers Position on Fracture Toughness of Functionally Graded Steels in Crack Divider Configuration显示文摘In the present study, fracture toughness of functionally graded steels in crack divider configuration has been modeled. By utilizing plain carbon and austenitic stainless steels slices with various thicknesses and arrange- ments as electroslag remelting electrodes, functionally graded steels were produced. The fracture toughness of the functionally graded steels in crack divider configuration has been found to depend on the composites' type together with the volume fraction and the position of the containing phases. According to the area under stress-strain curve of each layer in the functionally graded steels, a mathematical model has been presented for predicting fracture toughness of composites by using the rule of mixtures. The fracture toughness of each layer has been modified according to the position of that layer where for the edge layers, net plane stress condition was supposed and for the central layers, net plane strain condition was presumed. There is a good agreement between experimental results and those acquired from the analytical model. | Ali Nazari Jamshid Aghazadeh Mohandesi Shadi Riahi | 2011 | Journal of Materials Science & Technology2011，27，5： | 1 |
| 13 | Analytical investigations and fuzzy logic-based modeling of the impact resistance of aluminum-epoxy laminated composites显示文摘In the present paper, Charpy impact resistance of aluminum-epoxy laminated composites in both crack divider and crack ar-rester configurations has been investigated. In both configurations, an analytical investigation has been carried out to evaluate the effects of layers thickness on impact resistance of the specimens. A model based on fuzzy logic for predicting impact re-sistance of the specimens has been presented. For purpose of building the model, training and testing using experimental re-sults from 126 specimens produced from two basic composites were conducted. The data used for the input data in fuzzy logic models are arranged in a format of 7 input parameters that cover the thickness of layers, the number of layers, the adhesive type, the crack tip configuration, the content of SiC particles, the content of methacrylated butadiene-styrene particles and the number of test trial. According to these input parameters, in the fuzzy logic model, the impact resistance of each specimen was predicted. The training and testing results in the fuzzy logic model have shown a strong potential for predicting impact resis-tance of aluminum-epoxy laminated composites. | NAZARI Ali DIDEHVAR Neda | 2011 | Science China(Technological Sciences)2011，54，10： | 1 |
| 14 | Leukemia Inhibitory Factor Enhanced the Developmental and Implantation Compatibility of Mouse Embryos in Co-culture with Human Endometrial Epithelial Cells显示文摘Objective:Among the variousin vitro embryo culture systems,co-culture has demonstrated remarkable effects in pre-implantation embryo development owing to the production of embryo-nourishing factors.Nevertheless,little is known about the secretion of these factors.Therefore,in this study,the effect of leukemia inhibitory factor(LIF),one of the most important nourishing factors in the early development of mouse embryos,in human endometrial epithelial cells(hEECs)was evaluated.Methods:Two-cell stage embryos were collected from the oviducts of hyper-stimulated and mated mice and cultivated in a co-culture with an hEEC monolayer with or without LIF.The quality and developmental and attachment potential rates of cultured embryos were evaluated by determining the levels of octamer-binding transcription factor 4(Oct4)and caudal type homeobox 2(Cdx2)transcripts.Results:LIF significantly increased the developmental rate(82.67%vs.61.04%,respectively)and attachment rate(64%vs.45.45%,respectively)of mouse embryos co-cultured with hEECs compared to those in untreated embryos.The expression levels ofOct4 andCdx2 in blastocysts cultured in the presence of LIF were higher than those in blastocysts cultured without LIF.Conclusions:Despite the secretion of LIF by hEECs during co-culture with embryos,the amount of this factor was insufficient,and its addition to the culture media could increase the developmental potential of embryos. | Ali Hosseini Bahar Movaghar Showra Amani Abkenari Hassan Nazari Mehrdad Bakhtiyari | 2021 | Reproductive and Developmental Medicine2021，5，4： | 1 |
| 15 | A comparative study of grape seed extract and vitamin E effects on silica-induced pulmonary fibrosis in rats 显示文摘 | Ali A Nazari H Z Samei M | 2008 | Pulm Pharmacol Ther2008，21，4： | 1 |
| 16 | Effects of spacing and harvesting time on herbage yield and quality/quantity of oil in thyme, Thymus vulgaris L.显示文摘 | Hassanali Naghdi Badi Darab Yazdani Sajed Mohammad Ali Fatemeh Nazari | 2003 | Industrial Crops & Products2003，，3： | 1 |
| 17 | Influence of Al2O3 nanoparticles on the compressive strength and workability of blended concrete显示文摘 | Ali Nazari Shadi Riahi Shirin Riahi | | 0，，5： | 1 |
| 18 | Benefits of Fe2O3 nanoparticles in concrete mixing matrix显示文摘 | Ali Nazari Shadi Riahi Shirin Riahi | | 0，，4： | 1 |
| 19 | Computer-aided Prediction of the ZrO_2 Nanoparticles' Effects on Tensile Strength and Percentage of Water Absorption of Concrete Specimens显示文摘In the present paper,two models based on artificial neural networks and genetic programming for predicting split tensile strength and percentage of water absorption of concretes containing ZrO2 nanoparticles have been developed at different ages of curing.For building these models,training and testing using experimental results for 144 specimens produced with 16 different mixture proportions were conducted.The data used in the multilayer feed forward neural networks models and input variables of genetic programming models were arranged in a format of eight input parameters that cover the cement content,nanoparticle content,aggregate type,water content,the amount of superplasticizer,the type of curing medium,age of curing and number of testing try.According to these input parameters,in the neural networks and genetic programming models,the split tensile strength and percentage of water absorption values of concretes containing ZrO2 nanoparticles were predicted.The training and testing results in the neural network and genetic programming models have shown that two models have strong potential for predicting the split tensile strength and percentage of water absorption values of concretes containing ZrO2 nanoparticles.It has been found that neural network(NN) and gene expression programming(GEP) models will be valid within the ranges of variables.In neural networks model,as the training and testing ended when minimum error norm of network gained,the best results were obtained and in genetic programming model,when 4 genes were selected to construct the model,the best results were acquired.Although neural network have predicted better results,genetic programming is able to predict reasonable values with a simpler method rather than neural network. | Ali Nazari Shadi Riahi | 2012 | Journal of Materials Science & Technology2012，28，1： | 1 |
| 20 | Assessment of the effects of the cement paste composite in presence TiO2 nanoparticles显示文摘 | Ali Nazari Shadi Riahi Shirin Riahi | | 0，，4： | 1 |
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