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Texture evolution and mechanical anisotropy of an ultrafine/nano-grained pure copper tube processed via hydrostatic tube cyclic expansion extrusion

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International Journal of Minerals,Metallurgy and Materials 2022年第12期29卷 2241-2251页

作者： Seyed Moien Faregh Ghader Faraji mahmoud mosavi mashhadi Mohammad Eftekhari School of Mechanical Engineering College of EngineeringUniversity of TehranTehran 11155-4563Iran

Texture evolution and mechanical anisotropic behavior of an ultrafine-grained(UFG)pure copper tube processed by recently introduced method of hydrostatic tube cyclic expansion extrusion(HTCEE)was *** the UFG tube,different deformation behavior and a significant anisotropy in tensile properties were recorded along the longitudinal and peripheral *** HTCEE process increased the yield strength and the ultimate strength in the axial direction by 3.6 and 1.67 times,***,this process increased the yield strength and the ultimate strength in the peripheral direction by 1.15 and 1.12 times,*** ratio of ultimate tensile strength in the peripheral direction to that in the axial direction,as a criterion for mechanical anisotropy,are 1.7 and 1.16 for the as-annealed coarse-grained and the HTCEE processed UFG tube,*** results are indicative of a reducing effect of the HTCEE process on the mechanical ***,after HTCEE process,a low loss of ductility was observed in both directions,which is another advantage of HTCEE *** measurements revealed a slight increment of hardness values in the peripheral direction,which is in agreement with the trend of tensile *** analysis was conducted in order to determine the oriental distribution of the *** obtained{111}pole figures demonstrate the texture evolution and reaffirm the anisotropy observed in mechanical *** electron microscopy micrographs showed that different modes of fracture occurred after tensile testing in the two orthogonal directions.

关键词： severe plastic deformation ultrafine grained hydrostatic tube cyclic expansion extrusion anisotropy texture

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Comprehensive analysis of the role of ubiquitin-specific peptidases in colorectal cancer:A systematic review

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World Journal of Gastrointestinal Oncology 2024年第1期16卷 197-213页

作者： Eman Al-Balushi Amina Al Marzouqi Shima Tavoosi Amir Hossein Baghsheikhi Arash Sadri Leyla Sharifi Aliabadi Mohammad-Mahdi Salarabedi Syed Azizur Rahman Nabeel Al-Yateem Alireza mosavi Jarrahi Aram Halimi Mohammad Ahmadvand Wael M Abdel-Rahman College of Health Sciences University of SharjahSharjah 27272United Arab Emirates Department of Biology Faculty of SciencesUniversity of IsfahanIsfahan 81746-73441Iran Department of Biology Science and Research BranchIslamic Azad UniversityTehran 11365/4435Iran Students’Scientific Research Center Tehran University of Medical SciencesTehran ***Iran Cell Therapy and Hematopoietic Stem Cell Transplantation Research Center Research Institute for OncologyHematologyand Cell TherapyTehran University of Medical SciencesTehran ***Iran Student Research Committee School of MedicineShahid Beheshti University of Medical SciencesTehran ***Iran Department of Nursing University of SharjahSharjah 27272United Arab Emirates Cancer Research Centre Shahid Beheshti University of Medical SciencesTehran ***Iran Department of Medical Laboratory Sciences University of SharjahSharjah 27272United Arab Emirates

BACKGROUND Colorectal cancer(CRC)is the third most frequent and the second most fatal *** search for more effective drugs to treat this disease is ongoing.A better understanding of the mechanisms of CRC development and progression may reveal new therapeutic ***-specific peptidases(USPs),the largest group of the deubiquitinase protein family,have long been implicated in various *** have been numerous studies on the role of USPs in CRC;however,a comprehensive view of this role is *** To provide a systematic review of the studies investigating the roles and functions of USPs in *** We systematically queried the MEDLINE(via PubMed),Scopus,and Web of Science *** Our study highlights the pivotal role of various USPs in several processes implicated in CRC:Regulation of the cell cycle,apoptosis,cancer stemness,epithelial–mesenchymal transition,metastasis,DNA repair,and drug *** findings of this study suggest that USPs have great potential as drug targets and noninvasive biomarkers in *** dysregulation of USPs in CRC contributes to drug resistance through multiple *** Targeting specific USPs involved in drug resistance pathways could provide a novel therapeutic strategy for overcoming resistance to current treatment regimens in CRC.

关键词： Ubiquitin-specific peptidases Colorectal cancer Deubiquitinase protein family Drug target discovery Biomarker discovery

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Mechanical and Microstructural Properties of Ultra-fine Grained AZ91Magnesium Alloy Tubes Processed via Multi Pass Tubular Channel Angular Pressing(TCAP)

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Journal of Materials Science & Technology 2014年第2期30卷 134-138页

作者： G.Faraji P.Yavari S.Aghdamifar M.mosavi mashhadi Department of Mechanical Engineering University College of EngineeringUniversity of Tehran Department of Mechanical and Aerospace Engineering Science and Research BranchIslamic Azad University

Ultra-fine grained （UFG） cylindrical tubes were produced via recently developed tubular channel angular pressing （TCAP） process through different passes from as-cast AZ91 magnesium alloy. The microstructure and mechanical properties of processed tube through one to four passes of TCAP process at 200℃ were investigated. Microhardness of the processed tube was increased to 98.5 HV after one pass from an initial value of 67 Hr. An increase in the number of passes from one to higher number of passes has no more effect on the microhardness. Yield and ultimate strengths were increased by 4.3 and 1.4 times compared to those in as-cast condition. Notable increase in the strength was achieved after one pass of TCAP while higher number of passes has no more effect. Microstructural investigation shows notable decrease in the grain size to around 500 nm from the primary value of - 150 μm. Dissolution and distribution of hard MglTAI12 phase in the grain boundaries of dynamically recrystallized UFG AZ91 with a mean grain size of - 500 nm was an interesting issue of TCAP processing at 200 ℃ compared to other severe plastic deformation processes.

关键词： Severe plastic deformation Tubular channel angular pressing AZ91 Grain refinement Mechanical behaviour

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Particle swarm optimization model to predict scour depth around a bridge pier

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Frontiers of Structural and Civil Engineering 2020年第4期14卷 855-866页

作者： Shahaboddin SHAMSHIRBAND Amir mosavi Timon RABCZUK Department for Management of Science and Technology Development Ton Duc Thang UniversiyHo Chi Minh CityVietmam Faculty of Information Technology Ton Duc Thang UniversityHo Chi Minh CityVietnam Institute of Automation Kando Kalman Faculy of Electrical EngineeringObuda UniversiyBudapest 1034Hungary Department of Mathematics and Informatics J.Selye UniversityKomarno 94501Slovakia School of the Built Environment Oxford Brookes UniversityOxford OX30BPUK Instiute of Structural Mechanics Bauhaus-Universitat WeimarWeimar 99423Germany

Scour depth around bridge piers plays a vital role in the safety and stability of the *** former approaches used in the prediction of scour depth are based on regression models or black box models in which the first one lacks enough accuracy while the later one does not provide a clear mathematical expression to easily employ it for other situations or ***,this paper aims to develop new equations using particle swarm optimization as a metaheuristic approach to predict scour depth around bridge *** improve the efficiency of the proposed model,individual equations are derived for laboratory and field ***,sensitivity analysis is conducted to achieve the most effective parameters in the estimation of scour depth for both experimental and filed data *** the results of the proposed model with those of existing regression-based equations reveal the superiority of the proposed method in terms of accuracy and ***,the ratio of pier width to flow depth and ratio of d50 (mean particle diameter)to flow depth for the laboratory and field data were recognized as the most effective parameters,*** derived equations can be used as a suitable proxy to estimate scour depth in both experimental and prototype scales.

关键词： scour depth bridge design and construction particle swarm optimization computational mechanics artificial intelligence bridge pier

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Mineralogy and Geochemistry of Major, Trace and Rare Earth Elements in Sediments of the Hypersaline Urmia Salt Lake, Iran

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Acta Geologica Sinica(English Edition) 2018年第4期92卷 1384-1395页

作者： Samad ALIPOUR Khadije mosavi ONLAGHI Geology Department Faculty of Sciences UrmiaUniversity Urmia Iran Urmia University Urmia Iran

Urmia Salt Lake （USL） is a hypersaline lake located at the NW corner of the Iran platform. The lake area is estimated to have been over 5000 km2 at one point, but has now decreased to 〈1000 km^2 in the last two decades. It contains 4.6×109 tons of halite and other detrital and evaporative minerals such as calcite, aragonite, dolomite, quartz, feldspars, augite and sylvite. This study examined the mineralogy and geochemistry of bed sediments along the mid-east toward NE bank sediments collected from 1.5 meters depth and nearby augite placer. Due to the diverse iithology of the surrounding geology, bed sediments vary from felsic in the mid-east to mafic in the northeast. Weathering of tephrite and adakite rocks of the Islamic Island at the immediate boundary has produced a large volume of augite placer over a 40 km length, parallel to the shoreline. Based on the study result, weathering increases from south to north and the geochemistry of the sediments shows enrichment of MgO, CaO, Sr and Ba associated with Sr deployment in all samples. Rare earth elements （REE） patterns normalized to the upper continental crust （UCC） indicated LREEs enrichment compared to HREEs with an elevated anomaly of Eu, possibly due to surface absorbance of Mn and Fe minerals, associated with Sr elevation originating from adakites in the lake basin vicinity.

关键词： mineralogy geochemistry augite placer Urmia Lake Iran

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Accurate Classification of EEG Signals Using Neural Networks Trained by Hybrid Populationphysic-based Algorithm

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International Journal of Automation and computing 2020年第1期17卷 108-122页

作者： Sajjad Afrakhteh Mohammad-Reza mosavi Mohammad Khishe Ahmad Ayatollahi Department of Electrical Engineering Iran University of Science and Technology

A brain-computer interface(BCI)system is one of the most effective ways that translates brain signals into output *** imagery activities can be classified based on the changes inμandβrhythms and their spatial ***-layer perceptron neural networks(MLP-NNs)are commonly used for *** such MLP-NNs has great importance in a way that has attracted many researchers to this field *** methods for training NNs,such as gradient descent and recursive methods,have some disadvantages including low accuracy,slow convergence speed and trapping in local *** this paper,in order to overcome these issues,the MLP-NN trained by a hybrid population-physics-based algorithm,the combination of particle swarm optimization and gravitational search algorithm(PSOGSA),is proposed for our classification *** show the advantages of using PSOGSA that trains NNs,this algorithm is compared with other meta-heuristic algorithms such as particle swarm optimization(PSO),gravitational search algorithm(GSA)and new versions of *** metrics that are discussed in this paper are the speed of convergence and classification accuracy *** results show that the proposed algorithm in most subjects of encephalography(EEG)dataset has very better or acceptable performance compared to others.

关键词： Brain-computer interface(BCI) classification electroencephalography(EEG) gravitational search algorithm(GSA) multi-layer perceptron neural network(MLP-NN) particle swarm optimization

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Optimization Algorithm for Reduction the Size of Dixon Resultant Matrix:A Case Study on Mechanical Application

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Computers, Materials & Continua 2019年第2期58卷 567-583页

作者： Shang Zhang Seyedmehdi Karimi Shahaboddin Shamshirband Amir mosavi College of Computer and Information Technology China Three Gorges UniversityYichangChina Department of Mathematics Jouybar branchIslamic Azad UniversityJouybarIran Department for Management of Science and Technology Development Ton Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Information Technology Ton Duc Thang UniversityHo Chi Minh CityVietnam Department Institute of Structural Mechanics Bauhaus University of WeimarGermany Institute of Automation Kando Kalman Faculty of Electrical EngineeringObuda University1431 BudapestHungary

In the process of eliminating variables in a symbolic polynomial system,the extraneous factors are referred to the unwanted parameters of resulting *** paper aims at reducing the number of these factors via optimizing the size of Dixon *** optimal configuration of Dixon matrix would lead to the enhancement of the process of computing the resultant which uses for solving polynomial *** do so,an optimization algorithm along with a number of new polynomials is introduced to replace the polynomials and implement a complexity ***,the monomial multipliers are optimally positioned to multiply each of the ***,through practical implementation and considering standard and mechanical examples the efficiency of the method is evaluated.

关键词： Dixon resultant matrix symbolic polynomial system elimination theory optimization algorithm computational complexity

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The Photon Polarization Parameter of 2H（n, γ）3H reaction with Inclusion of the Electric Quadrupole Contribution

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Chinese Physics Letters 2014年第9期31卷 32-35页

作者： H. Sadeghi M. mosavi-Khansari Department of Physics Faculty of Science Arak University Arak 8349-8-38156 Iran

We use effective field theory （EFT） for the calculation of neutron-deuteron radiative capture at very low energies. We present here the use of EFT to calculate a low-energy photo-nuclear observable in three-body systems, the photon polarization parameter and and fore-aft asymmetry at thermal neutron energies up to next-to-next to leading order （N2 LO）, with inclasion of the electric quadrupole contribution. The photon polarization parameter in total is found to be Rc = -0.421±0.003 and is in good agreement with the other modern theoretical calculations based on modern nucleon-nucleon potentials. In comparison with our previous work, a satisfactory agreement with the available experimental data is found by inclusion of the electric quadrupole contribution.

关键词： PHOTONS -- Polarization RESEARCH FIELD theory (Physics) NEUTRON-deuteron interactions QUADRUPOLES THREE-body problem (Physics)

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Transforming Hand Drawn Wireframes into Front-End Code with Deep Learning

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Computers, Materials & Continua 2022年第9期72卷 4303-4321页

作者： Saman Riaz Ali Arshad Shahab S.Band Amir mosavi Department of Computer Science National University of TechnologyIslamabad44000Pakistan Department of Computer Science Institute of Space TechnologyIslamabad44000Pakistan Future Technology Research Center National Yunlin University of Science and TechnologyDouliu64002YunlinTaiwan Faculty of Civil Engineering Technische Universitat DresdenDresden 01069Germany

The way towards generating a website front end involves a designersettling on an idea for what kind of layout they want the website to have, thenproceeding to plan and implement each aspect one by one until they haveconverted what they initially laid out into its Html front end form, this processcan take a considerable time, especially considering the first draft of the designis traditionally never the final one. This process can take up a large amountof resource real estate, and as we have laid out in this paper, by using a Modelconsisting of various Neural Networks trained on a custom dataset. It can beautomated into assisting designers, allowing them to focus on the other morecomplicated parts of the system they are designing by quickly generating whatwould rather be straightforward busywork. Over the past 20 years, the boomin how much the internet is used and the sheer volume of pages on it demands ahigh level of work and time to create them. For the efficiency of the process, weproposed a multi-model-based architecture on image captioning, consisting ofConvolutional neural network (CNN) and Long short-term memory (LSTM)models. Our proposed approach trained on our custom-made database can beautomated into assisting designers, allowing them to focus on the other morecomplicated part of the system. We trained our model in several batches overa custom-made dataset consisting of over 6300 files and were finally able toachieve a Bilingual Evaluation Understudy (BLEU) score for a batch of 50hand-drawn images at 87.86%.

关键词： Deep learning wireframes front-end low fidelity high fidelity design process html computer vision dsl

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Prediction of XRF analyzers error for elements on-line assaying using Kalman Filter

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International Journal of Mining Science and Technology 2012年第4期22卷 595-601页

作者： Nakhaei F Sam A mosavi MR Nakhaei A Department of Mining Engineering Shahid Bahonar Kerman UniversityKerman 761886-8366Iran Department of Electrical Engineering Iran University of Science and TechnologyTehran 16846-13114Iran Department of Electrical Engineering Birjand UniversityBirjand 97175-376Iran

Determination of chemical elements assay plays an important role in mineral processing *** factor is used to control process accuracy,recovery calculation and plant *** new assaying methods including chemical methods,X-ray fluorescence and atomic absorption spectrometry are advanced and ***,in some applications,such as on-line assaying process,high accuracy is *** this paper,an algorithm based on Kalman Filter is presented to predict on-line XRF *** research has been carried out on the basis of based the industrial real data collection for evaluating the performance of the presented *** measurements and analysis for this study were conducted at the Sarcheshmeh Copper Concentrator Plant located in *** quality of the obtained results was very satisfied;so that the RMS errors of prediction obtained for Cu and Mo grade assaying errors in rougher feed were less than 0.039 and 0.002 and in final flotation concentration less than 0.58 and 0.074,*** results indicate that the mentioned method is quite accurate to reduce the on-line XRF errors measurement.

关键词： PredictionAccuracyX-ray fluorescence Kalman FilterAssayingError

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