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| 1 | A review on the cracking,baking and leaching processes of rare earth element concentrates显示文摘Rare earth elements(REE) are a set of seventeen chemical elements in the periodic table, which have been found in a variety classes of minerals in the world. The global demand for REE and their compounds has increased in high-tech applications over the past decades due to their chemical, catalytic, electrical, magnetic, and optical properties. After mining, comminution and ore beneficiation, hydrometallurgical and pyrometallurgical processes are carried out to recover REE compounds. The concentrate cracking is a process wherein the structure of a REE mineral is modified in order to dissolve REE in a weak acid solution. This would be accomplished through various techniques such as alkaline cracking and acid baking. The cracked concentrate is then leached to dissolve REE in a solution and subsequently recover those via neutralization, precipitation or solvent extraction methods. This paper reviewed the cracking and leaching methods applied to REE concentrates to produce an intermediate product for further REE separation. | Farzaneh Sadri Amir Mohammad Nazari Ahmad Ghahreman | 2017 | Journal of Rare Earths2017，35，8： | 11 |
| 2 | 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 |
| 3 | Effects of nanobubble and hydrodynamic parameters on coarse quartz flotation显示文摘Quartz, the second most abundant mineral in the earth's crust, is a gangue mineral in practically every flotation process. Coarse quartz flotation has been a long standing problem in various mineral processing plants to reduce milling cost and increase valuable mineral recovery. Based on this, the effects of nanobubbles(NBs) and hydrodynamic parameters on coarse quartz particle flotation were systematically investigated. Mechanical flotation experiments were carried out using the 7 cm and 9 cm diameter impellers in order to produce different hydrodynamic conditions. 900–1300 rpm impeller speeds were used for the 7 cm diameter impeller and 554–786 rpm for the 9 cm diameter impeller. The results show that the presence of NBs increased the flotation recovery of à425 + 106 lm quartz by up to 21%. For the7 cm diameter impeller, the maximum flotation recoveries of 86.4% and 98% were obtained in the absence and presence of NBs at Reynolds number(Re) of 81,000 and 66,000, respectively. For the 9 cm diameter impeller, the maximum recoveries of 86.3% and 97.5% were obtained in the absence and presence of NBs at Re of 90,000 and 75,000, respectively. NBs increased the flotation rate constant up to 36%. | Sabereh Nazari Sied Ziaedin Shafaei Mahdi Gharabaghi Rahman Ahmadi Behzad Shahbazi Fan Maoming | 2019 | International Journal of Mining Science and Technology2019，29，2： | 10 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | 纳米流体在各种热管中的应用综述(英文)显示文摘纳米技术被广泛应用于传热装置中,以提高热性能。纳米流体应用于热管中,可降低热管的热阻,提高热管的传热能力。文中,对纳米在流体热管中的应用进行了全面的综述。阐述了纳米流体对传统热管、脉动热管、热虹膜等各种类型热管的热性能的影响。此外,发现了纳米颗粒的高效利用必须有一定的浓度;因动力黏度的增加导致颗粒团聚的可能性越高,高浓度的纳米颗粒会产生较高的热阻。热传递性能的增强是晶核位置的增多和纳米流体本身具有的更大热导率的结果。 | Mohammad Alhuyi NAZARI Mohammad H. AHMADI Milad SADEGHZADEH Mohammad Behshad SHAFII Marjan GOODARZI | 2019 | Journal of Central South University2019，26，5： | 7 |
| 8 | 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 |
| 9 | Methane hydrate stability in the presence of water-soluble hydroxyalkyl cellulose显示文摘The effect of low-dosage water-soluble hydroxyethyl cellulose (approximate MW~90,000 and 250,000) as a member of hydroxyalkyl cellulosic polymer group on methane hydrate stability was investigated by monitoring hydrate dissociation at pressures greater than atmospheric pressure in a closed vessel. In particular, the influence of molecular weight and mass concentration of hydroxyethyl cellulose (HEC) was studied with respect to hydrate formation and dissociation. Methane hydrate formation was performed at 2℃ and at a pressure greater than 100 bar. Afterwards, hydrate dissociation was initiated by step heating from -10℃ at a mild pressure of 13 bar to 3℃, 0℃ and 2℃. With respect to the results obtained for methane hydrate formation/dissociation and the amount of gas uptake, we concluded that HEC 90,000 at 5000 ppm is suitable for long-term gas storage and transportation under a mild pressure of 13 bar and at temperatures below the freezing point. | M. Mohammad-Taheri A. Zarringhalam Moghaddam K. Nazari N. Gholipour Zanjani | 2012 | Journal of Natural Gas Chemistry2012，21，2： | 4 |
| 10 | 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 |
| 11 | 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 |
| 12 | Anopheline species composition in borderline of Iran–Azerbaijan显示文摘 | M.A. Oshaghi H. Vatandoost A. Gorouhi M.R. Abai A. Madjidpour S. Arshi H. Sadeghi M. Nazari A. Mehravaran | 2011 | Acta Tropica2011，，1： | 2 |
| 13 | 基于非对称信道状态信息的协作通信:一种契约理论建模方法(英文)显示文摘In relay-assisted cooperative communication,relay nodes help forwarding the information of a source node in case of link failure between the source and a destination.Although user cooperation improves the overall efficiency of the network,it requires incentive to stimulate potential relay nodes to assist the source by forwarding its data to the destination.Moreover,the potential relays are better informed than the source about their channel conditions to destination,which results in asymmetric information between the source and the relays.In this paper,we study the problem of lack of forwarding incentive in cooperative communication when channel state information of relays is private information and not known by the source.To tackle this problem,we apply the principle of contract theory to a cooperative wireless system.Source first designs incentive compatible and individually rational contract,consisting of a set of power-credit pairs.Then it broadcasts contract items to nearby nodes.Once the source node receives reply messages from the volunteer relays,it chooses one or more relays based on its requirements and communication starts.Simulation results show how credit assignment works in order to stimulate relays to cooperate and prevents relays from cheating behavior. | Bahareh Nazari Abbas Jamalipour | 2013 | China Communications2013，10，1： | 2 |
| 14 | A validated HPLC method for the determination of donepezil in human plasma after derivatization with 9-fluorenylmethyl chloroformate显示文摘A new HPLC method has been developed for determining donepezil in human plasma. To find the optimum conditions, a derivatization reaction was performed in different media, and the reaction product was identified by NMR and GC-MS after a semi-preparative HPLC separation. Under optimized conditions, donepezil was derivatized by 9-fluorenylmethyl chloroformate in chloroform and carbonate buffer at pH 9.5 in the presence of NaI after solid-phase extraction from a plasma sample. The reaction product was quantified on a reversed-phase TRACER EXCEL ODS-A, 5 μm column using a mixture of acetonitrile–10 mM acetate buffer(pH 6.0)–THF(60:35:5, v/v/v) as the mobile phase with fluorescence detection at 264 nm(ex) and 313 nm(em). Fluoxetine was used as the internal standard. The total run-time of the analysis was about 10 min, and a clean chromatogram was obtained. The developed method was linear over the range of 1–100 ng/mL in 500 μL of plasma samples(r2>0.998). The intra-day and inter-day precision values were in the range of 2.6%–11.6%. The limit of quantification was 1 ng/mL. | Reza Ahmadkhaniha Abdolrahman Nazari Mohsen Amini Effat Souri | 2014 | Journal of Chinese Pharmaceutical Sciences2014，23，2： | 2 |
| 15 | Mild and Efficient Synthesis of 1-(6-Chloroquinoxalin-2-yl)-2- [4-(trifluoromethyl)-2,6-dinitrophenyl] Hydrazine Derivatives by Microwave Irradiation显示文摘 | MILAD Taheri HANIYEH Alavi HAMIDEH Nazari | 2014 | Chemical Research in Chinese Universities2014，30，3： | 2 |
| 16 | Nonhomgeneous hyperechogenic pattern three days after frozen embryo transfer is associated with low pregnancy rates显示文摘 | Check JH Dietterich C Nazari A | 2002 | Fertil Steril2002，78，3： | 1 |
| 17 | Microstructural,Thermal,Physical and Mechanical Behavior of the Self-compacting Concrete Con-taining Si02 Nanoparticles显示文摘 | AH Nazari Shadi Riahi | 2012 | Materials Science and Engineerir2012，527，30： | 1 |
| 18 | Intravitreal injection of bevacizumab before vitrectomy for proliferative diabetic retinopathy显示文摘 | Modarres M Nazari H Falavarjani KG | 2009 | Eur J Ophthalmol2009，，5： | 1 |
| 19 | To assess role of staffing in nursing productivity: A qualitative research显示文摘 | Dehghan- nayeri N Nazari A Salsali M | 2006 | Hayat2006，12，： | 1 |
| 20 | Proposal for anultracompact?tunable?wavelength-division-multiplexing optical filter based on quasi-2D photonic crystals显示文摘 | ROSTAMI A HADDADPOUR A NAZARI F | 2010 | Journal of Optics2010，12，01： | 1 |
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