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| 1 | Simulation of a semi-industrial pilot plant thickener using CFD approach显示文摘Thickeners are important units for water recovery in various industries. In this study, a semi-industrial pilot plant thickener similar to the tailing thickener of the Sarcheshmeh Copper Mine was simulated by CFD modeling. The population balance was used to describe the particle aggregation and breakup. In this population balance, 15 particle sizes categories were considered. The Eulerian-Eulerian approach with standard k-e turbulence model was applied to describe two phases of slurry flow in the thickener under steady-state condition. The simulation results have been compared with the experimental measurements to validate the accuracy of the CFD modeling. After checking the numerical results, the effect of important parameters such as, feed flow rate, solid percentage in the feed, and solid particle size on the thickener performance was studied. The thickener residence time distribution were obtained by the modeling and also compared with the experimental data. Finally, the effects of feedwell feeding on the average diameter of aggregate and turbulent intensity were evaluated. | Majid Ebrahimzadeh Gheshlaghi Ataallah Soltani Goharrizi Alireza Aghajani Shahrivar | 2013 | International Journal of Mining Science and Technology2013，23，1： | 13 |
| 2 | CFD simulation of an industrial hydrocyclone with Eulerian-Eulerian approach: A case study显示文摘In the present study, a three-dimensional computational fluid dynamics simulation together with experimental field measurements was applied to optimize the performance of an industrial hydrocyclone at Sarcheshmeh copper complex. In the simulation, the Eulerian–Eulerian approach was used for solid and liquid phases, the latter being water. In this approach, nine continuous phases were considered for the solid particles with different sizes and one continuous phase for water. The continuity and momentum equations with inclusion of buoyancy and drag forces were solved by the finite volume method. The k–e RNG turbulence model was used for modeling of turbulency. There was a good agreement between the simulation results and the experimental data. After validation of the model accuracy, the effect of inlet solid percentage, pulp inlet velocity, rod inserting in the middle of the hydrocyclone and apex diameter on hydrocyclone performance was investigated. The results showed that by decreasing the inlet solid percentage and increasing the pulp inlet velocity, the efficiency of hydrocyclone increased. Decreasing the apex diameter caused an increase in the hydrocyclone efficiency. | Safa Raziyeh Soltani Goharrizi Ataallah | 2014 | International Journal of Mining Science and Technology2014，24，5： | 13 |
| 3 | Modeling industrial thickener using computational fluid dynamics(CFD),a case study:Tailing thickener in the Sarcheshmeh copper mine显示文摘Separation of particles from liquid in the large gravitational tanks is widely used in mining and industrial wastewater treatment process.Thickener is key unit in the operational processes of hydrometallurgy and is used to separate solid from liquid.In this study,population balance models were combined with computational fluid dynamics(CFD)for modeling the tailing thickener.Parameters such as feed flow rate,flocculant dosage,inlet solid percent and feedwell were investigated.CFD was used to simulate the industrial tailing thickener with settled bed of 120 m diameter which is located in the Sarcheshmeh copper mine.Important factor of drag force that defines the rake torque of rotating paddles on the bed was also determined.Two phases turbulence model of Eulerian/Eulerian in accordance with turbulence model ofκ-ε.was used in the steady-state.Also population balance model consists of 15 groups of particle sizes with Luo and Lehr kernel was used for aggregation/breakage kernel.The simulation results showed good agreement with the operational data. | Majid Ebrahimzadeh Gheshlaghi Ataallah Soltani Goharrizi Alireza Aghajani Shahrivar Hadi Abdollahi | 2013 | International Journal of Mining Science and Technology2013，23，6： | 10 |
| 4 | Stir casting process for manufacture of Al-SiC composites显示文摘Stir casting is an economical process for the fabrication of aluminum matrix composites.There are many parameters in this process,which affect the final microstructure and mechanical properties of the composites.In this study,micron-sized SiC particles were used as reinforcement to fabricate Al-3 wt% SiC composites at two casting temperatures(680 and 850 ℃) and stirring periods(2 and 6 min).Factors of reaction at matrix/ceramic interface,porosity,ceramic incorporation,and agglomeration of the particles were evaluated by scanning electron microscope(SEM) and high-resolution transition electron microscope(HRTEM) studies.From microstructural characterizations,it is concluded that the shorter stirring period is required for ceramic incorporation to achieve metal/ceramic bonding at the interface.The higher stirring temperature(850 ℃) also leads to improved ceramic incorporation.In some cases,shrinkage porosity and intensive formation of Al_4C_3 at the metal/ceramic interface are also observed.Finally,the mechanical properties of the composites were evaluated,and their relation with the corresponding microstructure and processing parameters of the composites was discussed. | Shahin Soltani Rasoul Azari Khosroshahi Reza Taherzadeh Mousavian Zheng-Yi Jiang Alireza Fadavi Boostani Dermot Brabazon | 2017 | Rare Metals2017，36，7： | 7 |
| 5 | Modeling and control for cooperative transport of a slung fluid container using quadrotors显示文摘In this paper, dynamic modeling and control problem for transfer of a sloshing liquid container suspended through rigid massless links from a team of quadrotors are investigated. By the proposed solution, pose of the slung container and fluid sloshing modes are stabilized appropriately. Dynamics of the container-liquid-quadrotors system is modeled by Euler-Lagrange method.Fluid slosh dynamics is included using multi-mass-spring model. According to derived model, a proper control law is designed for a system with three or more quadrotors. Implementing the proposed control law, quadrotors can control pose of the container, directions of the links and liquid sloshing modes simultaneously. Stability of closed loop system of tracking errors and sloshing modes are demonstrated using a theory of singularly perturbed systems and Lyapunov stability theorem. Also, the capability of the proposed feedback control laws in solving a formerly organized transport problem of a liquid filled container has been demonstrated in simulations. Moreover, priority of the proposed control scheme to an existing slung load controller in the literature is demonstrated. | Hassan SAYYAADI Ali SOLTANI | 2018 | Chinese Journal of Aeronautics2018，31，2： | 7 |
| 6 | 高分散多壁碳纳米管增强铝基复合材料的制备(英文)显示文摘采用机械合金化技术制备高分散多壁碳纳米管(MWCNTs)-铝(Al)复合材料。将纯度99%的铝粉和质量分数2%的MWCNTs经超声和水平球磨处理使Al颗粒与MWCNTs间产生机械键合力。场发射SEM观察表明,MWCNTs分散在Al薄片的表面,随球磨时间的不同,颗粒大小和形貌各异。采用加压烧结手段将混合粉末加工成块体材料,其微观硬度测试表明,加入MWCNTs后Al基体的机械性能得到提高。 | A. H. Javadi Sh. Mirdamadi M. A. Faghihisani S. Shakhesi R. Soltani | 2012 | 新型炭材料2012，27，3： | 7 |
| 7 | Improved recovery of a low-grade refractory gold ore using flotation–preoxidation–cyanidation methods显示文摘In this work, different flotation–preoxidation–cyanidation methods are considered for treating a lowgrade refractory gold ore. On the one hand, the results of selective flotation show that 22% and 31.1%of total Sb and As, respectively, remained in the final tailings and only about 28% of the total Au remained for further cyanidation processes. On the other hand, in bulk method of flotation the maximum Au recovery of 90.6% achieved after 60 min of flotation at the grind size with K80 of 146 micron. In addition, the bulk flotation method resulted in the concentrate with low concentrations of Sb and As elements. To improve the recovery of low-grade refractory gold ores, flotation should be followed by roasting, biological, or pressure oxidation processes so that the gold could be liberated prior to cyanidation processes. It is also found that the pressure oxidation pre-treatment of the concentrates prior to cyanidation may yield high gold recoveries of over than 83%. In these processes, recoveries are controlled by the temperature and the oxygen partial pressure in the solvent. However, by utilizing the bio-oxidation technique, the oxidation of sulfur to sulfate cannot be completed and, consequently, the gold recovery may be limited to only 72.2%. | Faraz Soltani Hossna Darabi Rezgar Badri Piroz Zamankhan | 2014 | International Journal of Mining Science and Technology2014，24，4： | 7 |
| 8 | An in vitro evaluation of novel NHA/zircon plasma coating on 316L stainless steel dental implant显示文摘The surface characteristics of an implant that influence the speed and strength of osseointegration include crystal structure and bioactivity. The aim of this study was to evaluate the bioactivity of a novel natural hydroxyapatite/zircon(NHA/zircon) nanobiocomposite coating on 316L stainless steel(SS) dental implants soaking in simulated body fluid. A novel NHA/zircon nanobiocomposite was fabricated with 0(control),5, 10, and 15 wt% of zircon in NHA using ball mill for 1 h. The composite mixture was coated on SS implants using a plasma spray method.Scanning electron microscopy(SEM) was used to evaluate surface morphology, and X-ray diffraction(XRD) was used to analyze phase composition and crystallinity(Xc). Further, calcium ion release was measured to evaluate the coated nanobiocomposite samples. The prepared NHA/zircon coating had a nanoscale morphological structure with a mean crystallite size of 30–40 nm in diameter and a bone-like composition,which is similar to that of the biological apatite of a bone. For the prepared NHA powder, high bioactivity was observed owing to the formation of apatite crystals on its surface. Both minimum crystallinity(Xc=41.1%) and maximum bioactivity occurred in the sample containing 10 wt% of zircon because of minimum Xcand maximum biodegradation of the coating sample. | Ebrahim Karamian Mahmood Reza Kalantar Motamedi Amirsalar Khandan Parisa Soltani Sahel Maghsoudi | 2014 | Progress in Natural Science:Materials International2014，24，2： | 6 |
| 9 | Design,development and evaluation of an online grading system for peeled pistachios equipped with machine vision technology and support vector machine显示文摘In this study,an intelligent system based on combined machine vision(MV)and Support Vector Machine(SVM)was developed for sorting of peeled pistachio kernels and shells.The system was composed of conveyor belt,lighting box,camera,processing unit and sorting unit.A color CCD camera was used to capture images.The images were digitalized by a capture card and transferred to a personal computer for further analysis.Initially,images were converted from RGB color space to HSV color ones.For segmentation of the acquired images,H-component in the HSV color space and Otsu thresholding method were applied.A feature vector containing 30 color features was extracted from the captured images.A feature selection method based on sensitivity analysis was carried out to select superior features.The selected features were presented to SVM classifier.Various SVM models having a different kernel function were developed and tested.The SVM model having cubic polynomial kernel function and 38 support vectors achieved the best accuracy(99.17%)and then was selected to use in online decision-making unit of the system.By launching the online system,it was found that limiting factors of the system capacity were related to the hardware parts of the system(conveyor belt and pneumatic valves used in the sorting unit).The limiting factors led to a distance of 8 mm between the samples.The overall accuracy and capacity of the sorter were obtained 94.33% and 22.74 kg/h,respectively. | Hosein Nouri-Ahmadabadi Mahmoud Omid Seyed Saeid Mohtasebi Mahmoud Soltani Firouz | 2017 | Information Processing in Agriculture2017，4，4： | 5 |
| 10 | Effect of modified atmosphere packaging on the mechanical properties of lettuce during shelf life in cold storage显示文摘Lettuce is a perishable vegetable that its shelf life is limited by detrimental texture changes and enzymatic activities during postharvest storage.One of solutions that can be used in storage and distribution of this product is modified atmosphere packaging(MAP).But its effects on the mechanical properties of the product have not been studied.This information would be beneficial in inspection of eating quality and later processing such as cutting and shredding.This research aimed to study effect of active MAP technology on the postharvest mechanical properties of lettuce at different storage periods.It was found that MAP had a significant effect on the tension property of the lettuce leaf.MAP treatment preserved the brittleness of the specimens during storage,but the control ones lost their brittleness and tolerated greater tension.Stiffness and rupture energy were significantly affected by MAP with P values of 0.01 and 0.05,respectively.Also,stiffness of the MAPtreated samples was higher than the control at the same storage time.The findings are due to reducing respiration,transpiration and bacterial growth by MAP which delays nutrient decomposition and maintains the original color and texture. | Mahmoud Soltani Firouz Reza Alimardani Hossein Mobli Seyed Saeid Mohtasebi | 2021 | Information Processing in Agriculture2021，8，4： | 5 |
| 11 | Prediction of plastic zone size around circular tunnels in non-hydrostatic stress field显示文摘This paper discusses the calculation of plastic zone properties around circular tunnels to rock-masses that satisfy the Hoek–Brown failure criterion in non-hydrostatic condition,and reviews the calculation of plastic zone and displacement,and the basis of the convergence–confinement method in hydrostatic condition.A two-dimensional numerical simulation model was developed to gain understanding of the plastic zone shape.Plastic zone radius in any angles around the tunnel is analyzed and measured,using different values of overburden(four states)and stress ratio(nine states).Plastic zone radius equations were obtained from fitting curve to data which are dependent on the values of stress ratio,angle and plastic zone radius in hydrostatic condition.Finally validation of this equation indicate that results predict the real plastic zone radius appropriately. | Behnam Bagheri Fazlollah Soltani Hamid Mohammadi | 2014 | International Journal of Mining Science and Technology2014，24，1： | 3 |
| 12 | SBR COMPOSITES REINFORCED WITH N-ISOPROPYL-N'PHENYL-P-PHENYLENEDIAMINE-MODIFIED CLAY显示文摘包括 N-isopropyl-N-phenyl-p-phenylenediamine-modified 泥土(organoclay ) 的 SBR 混合物被准备。修改泥土和抗氧化剂(IPPD ) 内容完成在上机械并且 SBR composites 的 rheological 性质被学习。FTIR 结果证实泥土被 IPPD 化学上修改并且变成了 organoclay。X 光检查衍射(XRD ) 结果由于 IPPD 的插入在泥土的夹层距离证实了增加。SBR 混合物的 Rheological 和痊愈特征用 RPA (橡胶过程分析器) 和电流计被决定。烧焦 SBR 混合物的时间和痊愈时间与 organoclay 的介绍减少了。SBR composites 的机械性质和热老化抵抗被 organoclay 的加入显著地改进。 | Habibollah Baharvand Ghasem Naderi Sedigheh Soltani | 2011 | Chinese Journal of Polymer Science2011，29，2： | 3 |
| 13 | KF-Melamine Formaldehyde Resin (KF-MFR) as a Versatile and Efficient Heterogeneous Reagent for Aldol Condensation of Aldehydes and Ketones under Microwave Irradiation显示文摘KF 三聚氰胺甲醛树脂(KF-MFR ) 被表明是为在微波照耀下面的跨丁间醇醛的冷凝作用的高度有效的 heterogenious 催化剂。在这合成,各种各样的醛和酉同类在三聚氰胺甲醛树脂上面对支持的 KF 一起被压缩负担得起不同 chalcone 衍生物在对优秀收益好。KF-MFR 证明了有唯一的 termal 和化学抵抗并且没有显著损失,能在催化活动为许多连续的跑被再使用。 | Rezaie, Ramin Heidary, Mohammad Soltani Rad, Mohammad Navid Behrouz, Somayeh | 2011 | Chinese Journal of Chemistry2011，29，6： | 3 |
| 14 | On the use of the genetic programming for balanced load distribution in software-defined networks显示文摘As a new networking paradigm,Software-Defined Networking(SDN)enables us to cope with the limitations of traditional networks.SDN uses a controller that has a global view of the network and switch devices which act as packet forwarding hardware,known as“OpenFlow switches”.Since load balancing service is essential to distribute workload across servers in data centers,we propose an effective load balancing scheme in SDN,using a genetic programming approach,called Genetic Programming based Load Balancing(GPLB).We formulate the problem to find a path:1)with the best bottleneck switch which has the lowest capacity within bottleneck switches of each path,2)with the shortest path,and 3)requiring the less possible operations.For the purpose of choosing the real-time least loaded path,GPLB immediately calculates the integrated load of paths based on the information that receives from the SDN controller.Hence,in this design,the controller sends the load information of each path to the load balancing algorithm periodically and then the load balancing algorithm returns a least loaded path to the controller.In this paper,we use the Mininet emulator and the OpenDaylight controller to evaluate the effectiveness of the GPLB.The simulative study of the GPLB shows that there is a big improvement in performance metrics and the latency and the jitter are minimized.The GPLB also has the maximum throughput in comparison with related works and has performed better in the heavy traffic situation.The results show that our model stands smartly while not increasing further overhead. | Shahram Jamali Amin Badirzadeh Mina Soltani Siapoush | 2019 | Digital Communications and Networks2019，5，4： | 3 |
| 15 | Application of response surface methodology and central composite rotatable design for modeling the influence of some operating variables of the lab scale thickener performance显示文摘This study discussed the application of response surface methodology(RSM)and central composite rotatable design(CCRD)for modeling and optimization of the influence of some operating variables on the performance of a lab scale thickener for dewatering of tailing in the flotation circuit.Four thickener operating variables,namely feed flowrate,solid percent,flocculant dosage and feedwell height were changed during the tests based on CCRD.The ranges of values of the thickener variables used in the design were a feed flowrate of 9–21 L/min,solid percent of 8%–20%,flocculant dosage of 1.25–4.25 g/t and feedwell height of 16–26 cm.A total of 30 thickening tests were conducted using lab scale thickener on flotation tailing obtained from the Sarcheshmeh copper mine,Iran.The underflow solid percent and bed height were expressed as functions of four operating parameters of thickener.Predicted values were found to be in good agreement with experimental values(R2values of 0.992 and 0.997 for underflow solid percent and bed height,respectively).This study has shown that the RSM and CCRD could effciently be applied for the modeling of thickener for dewatering of flotation tailing. | Aghajani Shahrivar Alireza Soltani Goharrizi Ataallah Ebrahimzadeh Gheshlaghi Majid Sarafi Amir Razmirad Mohammad Abdollahi Hadi | 2013 | International Journal of Mining Science and Technology2013，23，5： | 2 |
| 16 | Insight into DNA protection ability of medicinal herbs and potential mechanisms in hydrogen peroxide damages model显示文摘DNA damage is one of the most important consequences of oxidative stress in the cells. If DNA repair is unable to modify these inducible DNA damages, genomic instability may lead to mutation, cancer, aging and many other diseases. Single cell gel electrophoresis or comet assay is a common and versatile method to quantify these types of DNA damages. DNA damages induced by hydrogen peroxide(H_2O_2) are one of the proper models for measurement of protective ability of different compounds. So the main aim of this review is to provide an overview about protection ability of medicinal plants and their potential mechanism against H_2O_2 induced DNA damages. In this review, relevant researches on the effect of medicinal plants on DNA damages induced by H_2O_2 and possible molecular mechanisms are discussed.It seems that, medicinal plants are considered as therapeutic key factors to protect DNA from consequences caused by oxidative stress. Sufficient in vitro evidences introduce them as DNA protective agents through different mechanisms including antioxidant activity and some other cellular mechanisms. Moreover, in order to correlate the antigenotoxicity effects with their potential antioxidant property, most of medicinal plants were evaluated in term of antioxidant activity using standard methods. This review highlights the preventive effects of herbal medicine against oxidative DNA damages as well as provides rational possibility to engage them in animal studies and future clinical investigations. | Zahra Sabahi Fatemeh Soltani Mahmoodreza Moein | 2018 | Asian Pacific Journal of Tropical Biomedicine2018，8，2： | 2 |
| 17 | 采用人工神经网络基因复合算法预测氧化铜矿柱浸工艺铜浸出率(英文)显示文摘采用人工神经网络(ANN)以及人工神经网络和基因复合(GANN)算法来优化氧化铜矿柱浸工艺参数。采用三种高度的浸矿柱(2,4,6 m)和尺寸为<25.4 mm和<50.8 mm的两种矿物来进行浸出实验。在台架实验规模下,对浸矿柱高度、矿粒尺寸、硫酸流速、浸出时间等工艺参数对铜浸出率的影响进行研究,对浸出条件进行优化以得到最大的浸出率。研究结果表明,铜的浸出率随硫酸流速和浸出时间的增加而增加,随矿粒尺寸和浸矿柱高度的减小而增加。对人工神经网络(ANN)、人工神经网络和基因复合(GANN)算法的效率进行了比较,结果表明,人工神经网络和基因复合(GANN)算法比人工神经网络(ANN)算法更有效。采用新提出的算法模型来预测铜的浸出率误差更低。 | Fatemeh Sadat HOSEINIAN Aliakbar ABDOLLAHZADE Saeed Soltani MOHAMADI Mohsen HASHEMZADEH | 2017 | Transactions of Nonferrous Metals Society of China2017，27，3： | 2 |
| 18 | The effect of modification of matrix on densification efficiency of pitch based carbon composites显示文摘Using coal tar pitch as a matrix precursor to prepare carbon materials is widelyused by impregnation/carbonization processing technology.Four different grades of coaltar pitch and a natural pitch were characterized in terms of carbon yield, density, viscosity,and fractionation with solvents, as well as by thermal analysis methods.The suitability ofthese commercially available matrices for densification of 3 dimensional carbon-carboncomposites was examined.The theoretical results compared with experimental results.The highest density after impregnation was obtained using one of the coal tar pitches.Thepredicted results are in reasonable agreement with experiment data.The significance ofthis research is that a special heat treatment regime was conducted.The effects of modificationtemperature on the densification efficiency of composites were investigated andthen structure and characteristics of the composites were determined by scanning electronmicroscopy (SEM), Transmission electron microscopy (TEM) and X-Ray Diffraction (XRD). | MOHAMMAD Mahdi Sotoudehnia ALI Khalife Soltani AMIR Maghsouipour FATOLLAH Moztarzadeh | 2010 | Journal of Coal Science & Engineering(China)2010，16，4： | 2 |
| 19 | An expert egg grading system based on machine vision and artificial intelligence techniques显示文摘 | Mahmoud Omid Mahmoud Soltani Mohammad Hadi Dehrouyeh Seyed Saeid Mohtasebi Hojat Ahmadi | 2013 | Journal of Food Engineering2013，，1： | 2 |
| 20 | Mechanical behavior of micaceous clays显示文摘This study aims to investigate the effect of mica content on the mechanical properties of clays.Commercially available ground mica was blended with a locally available clayey soil,at varying mica contents by mass of 5%,10%,15%,20%,25%and 30%,to artificially prepare various micaceous clay blends.The preliminary testing phase included consistency limits and standard Proctor compaction tests.The primary testing program consisted of unconfined compression(UC),direct shear(DS)and scanning electron microscopy(SEM)tests.The test results showed that the liquid and plastic limits exhibited a linear,monotonically increasing trend with increase in mica content.The rate of increase in the plastic limit,however,was found to be greater than that of the liquid limit,thereby leading to a gradual transition towards a non-plastic,cohesionless character.The soft,spongy fabric and high water demand of the mica mineral led to higher optimum water contents and lower maximum dry unit weights with increasing mica content.Under low confinement conditions,i.e.the UC test and the DS test at low normal stresses,the shear strength was adversely affected by mica.However,the closer packing of the clay and mica components in the matrix under high confinement conditions offsets the adverse effects of mica by inducing frictional resistance at the shearing interface,thus leading to improved strength resistance. | Jiahe Zhang Amin Soltani An Deng Mark B.Jaksa | 2019 | Journal of Rock Mechanics and Geotechnical Engineering2019，11，5： | 2 |
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