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| 1 | Study of Helicobacter pylori genotype status in saliva,dental plaques,stool and gastric biopsy samples显示文摘AIM:To compare genotype of Helicobacter pylori(H.pylori) isolated from saliva,dental plaques,gastric biopsy,and stool of each patient in order to evaluate the mode of transmission of H.pylori infection.METHODS:This cross-sectional descriptive study was performed on 300 antral gastric biopsy,saliva,dental plaque and stool samples which were obtained from patients undergoing upper gastrointestinal tract endoscopy referred to endoscopy centre of Hajar hospital of Shahrekord,Iran from March 2010 to February 2011.Initially,H.pylori strains were identified by rapid urease test(RUT) and polymerase chain reaction(PCR) were applied to determine the presence of H.pylori(ureC) and for genotyping of voculating cytotoxin gene A(vacA) and cytotoxin associated gene A(cagA) genesin each specimen.Finally the data were analyzed by using statistical formulas such as Chi-square and Fisher's exact tests to find any significant relationship between these genes and patient's diseases.P < 0.05 was considered statistically significant,RESULTS:Of 300 gastric biopsy samples,77.66% were confirmed to be H.pylori positive by PCR assay while this bacterium were detected in 10.72% of saliva,71.67% of stool samples.We were not able to find it in dental plaque specimens.The prevalence of H.pylori was 90.47% among patients with peptic ulcer disease(PUD),80% among patients with gastric cancer,and 74.13% among patients with none ulcer dyspepsia(NUD) by PCR assay.The evaluation of vacA and cagA genes showed 6 differences between gastric biopsy and saliva specimens and 11 differences between gastric and stool specimens.94.42% of H.pylori positive specimens were cagA positive and all samples had amplified band both for vacA s and m regions.There was significant relationship between vacA s1a/m1a and PUD diseases(P = 0.04),s2/m2 genotype and NUD diseases(P = 0.05).No statically significant relationship was found between cagA status with clinical outcomes and vacA genotypes(P = 0.65).The evaluation of vacA and cagA genes showed 6 differences between gastric biopsy and saliva specimens and 11 differences between gastric and stool specimens,CONCLUSION:Regard to high similarity in genotype of H.pylori isolates from saliva,stomach and stool,this study support the idea which fecal-oral is the main route of H.pylori transmission and oral cavity may serve as a reservoir for H.pylori,however,remarkable genotype diversity among stomach,saliva and stool samples showed that more than one H.pylori genotype may exist in a same patient. | Hassan Momtaz Negar Souod Hossein Dabiri Meysam Sarshar | 2012 | World Journal of Gastroenterology2012，18，17： | 21 |
| 2 | Application of polyurethane geocomposites to help maintain track geometry for high-speed ballasted railway tracks显示文摘There are many issues surrounding the performance of critical assets on high-speed ballasted railway lines.At assets like switch & crossings and bridge transitions high track forces can be produced resulting in higher ballast settlements and hence track misalignments.The latter result in higher track forces and hence more settlement,leading to the need for increased track maintenance to ensure comfort and safety.Current technologies for solving issues like ballast movement under high-speed loading regimes are limited.However,a technique that has been well used across the UK and now increasingly overseas to stabilise and reinforce ballasted railway tracks is the application of in-situ polyurethane polymers,termed XiTRACK.This paper discusses how this technique can be used to solve these types of long-standing issues and presents actual polymer application profiles at two typical critical sites,namely a junction and a transition onto concrete slab-track. | Peter Keith WOODWARD Abdellah EL KACIMI Omar LAGHROUCHE Gabriela MEDERO Meysam BANIMAHD | 2012 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2012，13，11： | 20 |
| 3 | 离岸微型综合能源系统多目标随机规划显示文摘离岸微型综合能源系统与海洋工程的生产工艺环节结合紧密,并独立运行。因此,如何在克服生产工艺环节或外界环境不确定性影响的同时,尽可能减少CO_2的排放,并尽量节省成本是其规划的难点。文中从综合能源系统优化规划的角度,根据能源集线器的思想,建立离岸微型综合能源系统的电-热-CO_2耦合模型,构建以总成本最小、CO_2排放量最少为目标,以电、热网络平衡等条件为约束,并考虑生产工艺环节和外界环境不确定性影响的多目标随机规划模型,进而利用多目标进化算法求解该模型,实现兼顾成本与环保的离岸微型综合能源系统多目标优化规划。通过海上油气平台群及全电舰船的微型综合能源系统的优化规划,验证了所提方法的可行性与有效性。 | 张安安 张红 吴建中 Meysam QADRDAN 李茜 | 2019 | 电力系统自动化2019，43，7： | 14 |
| 4 | Mechanical characteristics of biodegradable magnesium matrix composites:A review显示文摘In recent years,a new generation of biodegradable metallic materials,magnesium alloys,has been called a revolutionary material for biomedical applications(i.e.in orthopedics applications as a bone-implant material),thanks to the reasonable strength(similar to bone tissue,compared to available metallic alloys)and high biocompatibility of magnesium and its alloys.However,pure magnesium can corrode too quickly in the physiological pH(7.4–7.6)and high chloride environment of the physiological system and therefore lose their mechanical integrity before tissues have sufficiently.Engineering approach to this challenge(high corrosion rate of Mg)can be(i)alloying of element additions,(ii)surface treatment and(iii)development of metal(magnesium)matrix composites(MMCs).Magnesium-based composites,as bio-materials,can provide a combination of unique characteristics including adjustable mechanical properties(i.e.tensile strength,elastic modulus,ductility)and corrosion resistance.This is the main advantage of magnesium-based composites as compared with alloying and surface treatment approaches.Here,the matrix materials are biomedical magnesium alloys based on Mg–Zn,Mg–Ca and Mg–REE alloy systems(REE stands for rare earth elements including yttrium,Y,cerium,Ce,lanthanum,La).The reinforcement phases are mainly based on hydroxyapatite(HAP),calcium polyphosphate(CPP),andβ-tricalcium phosphate(β-TCP)particles,and hybrid HAP+β-TCP particles.In this paper a comprehensive review is provided on different grades of biodegradable magnesium matrix composites,with focus on their mechanical properties. | Meysam Haghshenas | 2017 | Journal of Magnesium and Alloys2017，5，2： | 10 |
| 5 | Application of artificial neural networks in optimal tuning of tuned mass dampers implemented in high-rise buildings subjected to wind load显示文摘High-rise buildings are usually considered as flexible structures with low inherent damping. Therefore, these kinds of buildings are susceptible to wind-induced vibration. Tuned Mass Damper(TMD) can be used as an effective device to mitigate excessive vibrations. In this study, Artificial Neural Networks is used to find optimal mechanical properties of TMD for high-rise buildings subjected to wind load. The patterns obtained from structural analysis of different multi degree of freedom(MDF) systems are used for training neural networks. In order to obtain these patterns, structural models of some systems with 10 to 80 degrees-of-freedoms are built in MATLAB/SIMULINK program. Finally, the optimal properties of TMD are determined based on the objective of maximum displacement response reduction. The Auto-Regressive model is used to simulate the wind load. In this way, the uncertainties related to wind loading can be taken into account in neural network's outputs. After training the neural network, it becomes possible to set the frequency and TMD mass ratio as inputs and get the optimal TMD frequency and damping ratio as outputs. As a case study, a benchmark 76-story office building is considered and the presented procedure is used to obtain optimal characteristics of the TMD for the building. | Meysam Ramezani Akbar Bathaei Amir K.Ghorbani-Tanha | 2018 | Earthquake Engineering and Engineering Vibration2018，17，4： | 8 |
| 6 | Using the discrete element method to assess the mixing of polydisperse solid particles in a rotary drum显示文摘 | Basel Alchikh-Sulaiman Meysam Alian Farhad Ein-Mozaffari Ali Lohi Simant R. Upreti | 2016 | Particuology2016，14，2： | 8 |
| 7 | Synthesis and characterization of collagen/PLGA biodegradable skin scaffold fibers显示文摘The aim of this study is to investigate the applicability of poly(lactic-co-glycolic acid)(PLGA)/collagen composite scaffold for skin tissue engineering.PLGA and collagen were dissolved in HFIP as a common solvent and fibrous scaffolds were prepared by electrospinning method.The scaffolds were characterized by scanning electron microscopy(SEM),FTIR spectroscopy,mercury porosimetry,tensile strength,biocompatibility assays and Biodegradation.Cytotoxicity and cell adhesion were tested for two cell line groups,human dermal fibroblast(HDF)and human keratinocyte(HaCat).SEM images showed appropriate cell adhesion to the scaffold for both cell lines.MTT assays indicated that the cell viability of HDF cells increased with time,but the number of HaCat cells decreased after 14 days.The ultimate tensile strength was suitable for skin substitute application,but its elongation at break was rather low.For successful clinical application of the PLGA/collagen scaffold,some properties especially mechanical strain needs to be improved. | Alireza Sadeghi-Avalshahr Samira Nokhasteh Amir Mahdi Molavi Mohammad Khorsand-Ghayeni Meysam Mahdavi-Shahri | 2017 | Regenerative Biomaterials2017，4，5： | 7 |
| 8 | Characterizing Spatial Variability of Soil Textural Fractions and Fractal Parameters Derived from Particle Size Distributions显示文摘Soil particle size distribution(PSD) is a fundamental physical property affecting other soil properties. Characterizing spatial variability of soil texture is very important in environmental research. The objectives of this work were: 1) to partition PSD of 75 soil samples, collected from a flat field in the University of Guilan, Iran, into two scaling domains using a piecewise fractal model to evaluate the relationships between fractal dimensions of scaling domains and soil clay, silt, and sand fractions and 2) to assess the potential of fractal parameters as an index used in a geostatistical approach reflecting the spatial variability of soil texture. Features of PSD of soil samples were studied using fractal geometry, and geostatistical techniques were used to characterize the spatial variability of fractal and soil textural parameters. There were two scaling domains for the PSD of soil samples. The fractal dimensions of these two scaling domains(D_1 and D_2) were then used to characterize different ranges of soil particle sizes and their relationships to the soil textural parameters. There was a positive correlation between D_1 and clay content(R^2= 0.924), a negative correlation between D_1 and silt content(R^2= 0.801), and a negative correlation between D_2 and sand content(R^2= 0.913). The geometric mean diameter of soil particles had a negative correlation with D_1(R^2= 0.569) and D_2(R^2= 0.682). Semivariograms of fractal dimensions and soil textural parameters were calculated and the maps of spatial variation of D_1 and D_2 and soil PSD parameters were provided using ordinary kriging. The results showed that there were also spatial correlations between D_1 and D_2 and particle size fractions.According to the semivariogram models and validation parameters, the fractal parameters had powerful spatial structure and could better describe the spatial variability of soil texture. | Meysam MOHAMMADI Mahmoud SHABANPOUR Mohammad Hossein MOHAMMADI Nasser DAVATGAR | 2019 | Pedosphere2019，29，2： | 7 |
| 9 | Statistical optimization of stress level in Mg-Li-Al alloys upon hot compression testing显示文摘In the present study,a response optimization method using Extreme Vertices Mixer Design(EVMD)approach is proposed for stress optimization in a thermomechanically processed Mg-Li-Al alloy.Experimentation was planned as per mixed design proportions of Mg,Li and Al and process variables(i.e.temperature and strain rate).Each experiment has been performed under different conditions of factors proportions and process variables.The response,particularly stress has been considered for each experiment.The response is optimized to find an optimum condition when the contributing factors influence material characteristics in such a way,to achieve better strength,ductility and corrosion resistance.Estimated regression coefficient table for response has been observed to identify the important factors in this process and significantly high variance inflation factor has been observed.Most importantly,an optimum condition is achieved from this analysis which fulfills the experimental observations and theoretical assumptions. | Rezawana Islam Meysam Haghshenas | 2019 | Journal of Magnesium and Alloys2019，7，2： | 6 |
| 10 | Service restoration in distribution networks using combination of two heuristic methods considering load shedding显示文摘Two heuristic methods are proposed to find an effective and fast solution in modern power distribution networks.For solving the service restoration problem in distribution networks,switch selection indices based on an analytic approach and a practicable heuristic graph-based method are given.The formulation of the problem includes four different objective functions:1)maximizing the total load restored;2)minimizing the number of switching operations;3)maximizing the top priority restored load;4)minimizing load shedding.A suitable evaluation of switch indices is used for all candidate tie switches(TSs)in the network to find the best solution and decrease the number of switching operations.A new graph-based approach is utilized for finding the best sectionalizes switch(SS)and minimizing the voltage drop.The accuracy and the validity of the approach are tested in two standard electrical distribution networks.The results of the approach are used for IEEE 69-bus and IEEE 119-bus test case. | Meysam GHOLAMI Jamal MOSHTAGH Naji GHADERNEJAD | 2015 | Journal of Modern Power Systems and Clean Energy2015，3，4： | 6 |
| 11 | Healthy ranges of serum alanine aminotransferase levels in Iranian blood donors显示文摘AIM: The healthy ranges for serum alanine aminotransferase(ALT) levels are less well studied. The aim of this study was to define the upper limit of normal (ULN) for serum ALT levels, and to assess factors associated with serum ALT activity in apparently healthy blood donors. METHODS: A total of 1 939 blood donors were included.ALT measurements were performed for all cases using the same laboratory method. Healthy ranges for ALT levels werecomputed from the population at the lowest risk for liver disease. Univariate and multivariate analyses were performed to evaluate associations between clinical factors and ALT levels.RESULTS: Serum ALT activity was independently associated with body mass index (BMI) and male gender, but not associated with age. Association of ALT with BMI was more prominent in males than in females. Upper limit of normal for non-overweight women (BMI of less than 25) was 34 U/L,and for non-overweight men was 40 U/L.CONCLUSION: Serum ALT is strongly associated with sex and BMI. The normal range of ALT should be defined for male and female separately. | Mehdi Mohamadnejad Akram Pourshams Reza Malekzadeh Ashraf Mohamadkhani Afsaneh Rajabiani Ali Ali Asgari Seyed Meysam Alimohamadi Hadi Razjooyan Mansooreh Mamar-Abadi | 2003 | World Journal of Gastroenterology2003，9，10： | 6 |
| 12 | Fuzzy expert system for diagnosing diabetic neuropathy显示文摘AIM To design a fuzzy expert system to help detect and diagnose the severity of diabetic neuropathy. METHODS The research was completed in 2014 and consisted of two main phases. In the first phase, the diagnostic parameters were determined based on the literature review and by investigating specialists' perspectives(n= 8). In the second phase, 244 medical records related to the patients who were visited in an endocrinology and metabolism research centre during the first six months of 2014 and were primarily diagnosed with diabetic neuropathy, were used to test the sensitivity, specificity, and accuracy of the fuzzy expert system.RESULTS The final diagnostic parameters included the duration of diabetes, the score of a symptom examination based on the Michigan questionnaire, the score of a sign examination based on the Michigan questionnaire, the glycolysis haemoglobin level, fasting blood sugar, blood creatinine, and albuminuria. The output variable was the severity of diabetic neuropathy which was shown as a number between zero and 10, had been divided into four categories: absence of the disease,(the degree of severity) mild, moderate, and severe. The interface of the system was designed by ASP.Net(Active Server Pages Network Enabled Technology) and the system function was tested in terms of sensitivity(true positive rate)(89%), specificity(true negative rate)(98%), and accuracy(a proportion of true results, both positive and negative)(93%).CONCLUSION The system designed in this study can help specialistsand general practitioners to diagnose the disease more quickly to improve the quality of care for patients. | Meysam Rahmani Katigari Haleh Ayatollahi Mojtaba Malek Mehran Kamkar Haghighi | 2017 | World Journal of Diabetes2017，8，2： | 5 |
| 13 | Ocular trauma treated with pars plana vitrectomy: early outcome report显示文摘AIM: To evaluate demographic variables and visual outcomes, among patients with ocular injuries involving the posterior segment, managed with pars plana vitrectomy.· METHODS: The records of patients were studied retrospectively from March to September 2010, to determine the age, gender, place of occurrence of trauma, visual acuity, anatomical site, nature of injury,wound length, the presence of an afferent pupillary defect, and the timing of vitrectomy. The Ocular Trauma Score was measured. The minimum follow-up from presentation was 6mo.·RESULTS: Ninety patients(77 males, 13 females), with a mean age of 32.7 ±15.8y were included over the 6-month period. The majority of cases occurred in the workplace(47 patients), followed by home(14 patients).The mean visual acuity(log MAR) of patients significantly improved from 2.36 ±0.72 preoperatively to 1.50 ±1.14 postoperatively. Twenty-three patients had preoperative vision better than 2.0 log MAR, the postoperative visual acuity was significantly better among these patients than patients with worse than 2.0 log MAR(P <0.001). Visual improvement between groups with early vitrectomy(<7d)and delayed vitrectomy(>7d) was not significantly different(P =0.66). Postoperative visual acuity was not significantly different between patients with injury in Zone I and II(P =0.64), but patients with injury in Zone III had significantly poorer visual acuity(P =0.02). Patients with relative afferent pupillary defect had significantly poorer postoperative visual acuity(P =0.02). Preoperative visual acuity, the difference of preoperative and postoperative visual acuity, and postoperative visualacuity were significantly different between groups with different ocular trauma scores(P <0.001).·CONCLUSION: Trauma is more likely to occur in men under 40 y of age and in the workplace. The favorable final visual outcome is associated with the absence of afferent pupillary defect, ocular trauma score and presenting visual acuity as well as the zone of injury, and not associated with the timing of vitrectomy. | Mohammad Reza Mansouri Seyed Ali Tabatabaei Mohammad Soleimani Mohammad Yaser Kiarudi Saber Molaei Mehdi Rouzbahani Meysam Mireshghi Mohsen Zaeferani Mehrbod Ghasempour | 2016 | International Journal of Ophthalmology(English edition)2016，9，5： | 5 |
| 14 | 用于甲烷水蒸气重整的镍基催化剂的失活和再生(英文)显示文摘The deactivation of nickel catalysts used in Arak and Razi petrochemical complexes followed by catalyst regeneration was evalu-ated. The characterization of the different structures was made by powder X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDS),transmission electron microscopy(TEM),and carbon & sulfur analyzer. The Ni particle size was estimated from XRD patterns and TEM graphs. The agglomeration of nickel particle and the poison by sulfur components were recognized as the main reasons in deactivation of Arak and Razi catalysts,respectively. The activity of the used catalysts before and after regeneration was measured on methane steam reforming at a CH4:H2O ratio of 1:3 at 850 oC. The regeneration processes for Arak and Razi samples were performed with CO2 as an oxidative atmosphere and steam as a regenerating agent,respectively. The results show that,(1) no residual sulfur components were on the regenerated Razi catalyst surface without changing the structure of the catalyst and the regenerated catalyst has gained 80% of its catalytic activity,and that(2) the nickel particle size of regenerated Arak specimen decreased remarkably as measured by Debye-Scherrer equation from XRD patterns. TEM images were in agreement with the XRD results and indicated a decrease in nickel particle size of regenerated catalyst. Additionally,in both regenerated catalysts all the coke on the surface of the support was eliminated after regeneration. | Seyed Meysam HASHEMNEJAD Matin PARVARI | 2011 | 催化学报2011，32，2： | 5 |
| 15 | 转速对6061-T6铝合金搅拌摩擦搭接焊接头力学性能的影响(英文)显示文摘采用场发射扫描电子显微镜(FE-SEM),研究转速对厚度为5 mm的6061-T6铝合金搅拌摩擦搭接焊接头的宏观和微观组织、硬度、搭接头剪切性能和失效模式的影响。结果表明:在最低的转速度下,上模板和下模板具有十分相似的硬度分布。采用EDX分析发现,焊核区的断裂面中含有Fe的化合物。 | Firouz FADAEIFARD Khamirul Amin MATORI Meysam TOOZANDEHJANI Abdul Razak DAUD Mohd Khairol Anuar Mohd ARIFFIN Norinsan Kamil OTHMAN Farhad GHARAVI Abdul Hadi RAMZANI Farhad OSTOVAN | 2014 | Transactions of Nonferrous Metals Society of China2014，24，4： | 5 |
| 16 | Mechanical properties of stabilized zirconia nanocrystalline EB-PVD coating evaluated by micro and nano indentation显示文摘Yttria-stabilized zirconia(YSZ)thin nanocrystalline coatings at different substrate preheating temperatures were deposited via electron beam-physical vapour deposition(EB-PVD).Nanocrystalline ZrO_(2)-Y_(2)O_(3) was deposited on the bond coat in order to compensate for the coefficient of thermal expansion(CTE),which can be functionalized as a thermal barrier coating(TBC).The aim of this study was to evaluate mechanical properties with respect to adhesion of zirconia nanocrystalline’s top ceramic layer to the interfacial bond coat by utilizing micro and nano indentation tests.In the present paper,the structural studies were carried out using X-ray diffraction(XRD)analysis of coating content(8 mol%of Y_(2)O_(3)).The tetragonal phase of stabilized zirconia was observed.Field emission scanning electron microscopy(FESEM)and atomic force microscopy(AFM)were employed to characterize the coatings’morphology and microstructure.The mechanical behavior of ZrO_(2)-Y_(2)O_(3) thin films under point loading conditions was studied by nanoindentation using a Berkovich indenter with 130 nm tip radius.Therefore,adhesion of top coat to the interfacial underlying metallic bond coat known as MCrAlY(M=Ni,Co)was estimated according to the highest peak load tests;for a 120 mN peak load,the film manifested tolerable adhesion properties.Moreover,nanoindentation of ZrO_(2)-Y_(2)O_(3) nanostructure deposited at 1050℃substrate preheating temperature produced the highest hardness value of about 21.7 GPa.Vickers micro hardness was utilized with the aid of the Tabor equation in order to achieve deeper insight into the correlation between adhesion and deposition process parameters. | Meysam KESHAVARZ Mohd Hasbullah IDRIS Norhayati AHMAD | 2013 | Journal of Advanced Ceramics2013，2，4： | 4 |
| 17 | 先天性上睑下垂患者100例弱视致病原因的探讨(英文)显示文摘目的:评估先天性上睑下垂患者的弱视发病情况。方法:在本横断面研究中,包括1岁以上的先天性上睑下垂患者100例(114眼)。最佳矫正视力小于10/10或两眼之间至少相差2/10者定义为弱视。年幼患者不能进行斯内伦视力表检测者,观察其注视情况。不同弱视患者的类型:1)屈光参差性弱视:散光性屈光参差≥1.00D;远视性球镜屈光参差≥1.00D,近视性球镜屈光参差≥-3.00D(睫状肌麻痹);2)斜视性弱视,3)形觉剥夺性弱视(SDA)。观察弱视的总发病率及类型,并对单侧和双侧上睑下垂患者进行比较。结果:弱视的发生率在上睑下垂患者为39/114(34.2%),其具体原因:屈光参差性弱视占29.8%,SDA占10.5%,斜视性弱视4.3%,严重的上睑下垂患者弱视发病率更高,视轴遮盖者(OA)占76%,而视轴未遮盖者只占22%。在视轴遮盖的单侧眼睑下垂患者,散光屈光参差性弱视发生率更高,在双侧眼睑下垂至少1眼视轴遮盖者,球镜屈光参差性弱视发生率更高。无论单侧和双侧上睑下垂,如果有视轴遮盖,则SDA比较多见。结论:由于屈光参差性弱视比SDA发生率更高,关注导致的弱视所有原因对于预防儿童上睑下垂所致的弱视极其重要。 | Abolfazl Kasaee Alireza Yazdani-Abyaneh Syed Ziaeddin Tabatabaie Alireza K.Jafari Ahmad Ameri Bahram Eshraghi Vafa Samarai Meysam Mireshghi Mohammad Taher Rajabi | 2011 | 国际眼科杂志2011，11，3： | 4 |
| 18 | Nonsingular Terminal Sliding Mode Control With Ultra-Local Model and Single Input Interval Type-2 Fuzzy Logic Control for Pitch Control of Wind Turbines显示文摘As wind energy is becoming one of the fastestgrowing renewable energy resources,controlling large-scale wind turbines remains a challenging task due to its system model nonlinearities and high external uncertainties.The main goal of the current work is to propose an intelligent control of the wind turbine system without the need for model identification.For this purpose,a novel model-independent nonsingular terminal slidingmode control(MINTSMC)using the basic principles of the ultralocal model(ULM)and combined with the single input interval type-2 fuzzy logic control(SIT2-FLC)is developed for non-linear wind turbine pitch angle control.In the suggested control framework,the MINTSMC scheme is designed to regulate the wind turbine speed rotor,and a sliding-mode(SM)observer is adopted to estimate the unknown phenomena of the ULM.The auxiliary SIT2-FLC is added in the model-independent control structure to improve the rotor speed regulation and compensate for the SM observation estimation error.Extensive examinations and comparative analyses were made using a real-time softwarein-the-loop(RT-SiL)based on the dSPACE 1202 board to appraise the efficiency and applicability of the suggested modelindependent scheme in a real-time testbed. | Saber Abrazeh Ahmad Parvaresh Saeid-Reza Mohseni Meisam Jahanshahi Zeitouni Meysam Gheisarnejad Mohammad Hassan Khooban | 2021 | IEEE/CAA Journal of Automatica Sinica2021，8，3： | 4 |
| 19 | 粉末冶金和微波烧结法制备Al−CNTs−Al2O3纳米复合材料的工艺−显微组织−性能之间的关系显示文摘采用粉末冶金和微波烧结工艺制备Al−2CNTs−xAl2O3纳米复合材料。研究工艺引起的显微组织特征与材料的物理、力学性能以及超声参数之间的相互关系。研究发现,复合材料的致密化和尺寸变化等物理性能与纳米复合粉体的形貌和粒径密切相关。当Al2O3含量为10%(质量分数)、球磨时间大于8 h、颗粒被大量细化时,材料的密度最大。Al2O3含量、纳米强化相的分布和晶粒尺寸对材料的力学性能有显著影响,当Al2O3含量为10%(质量分数)、Al2O3纳米颗粒球磨时间为12 h、碳纳米管均匀分布时,可形成高密度位错和大量晶粒细化,从而获得最佳的硬度和强度。同时,纵波和横波速度及衰减随着Al2O3含量和球磨时间的增加而线性增加。超声速度和衰减的变化取决于碳纳米管和Al2O3在基体中分布的均匀程度及其较小的颗粒间距。经过较长的球磨时间,Al2O3含量越高,碳纳米管和Al2O3分布越均匀,超声波的速度和衰减越大。 | Meysam TOOZANDEHJANI Farhad OSTOVAN Khairur Rijal JAMALUDIN Astuty AMRIN Khamirul Amin MATORI Ehsan SHAFIEI | 2020 | Transactions of Nonferrous Metals Society of China2020，30，9： | 4 |
| 20 | Nanocrystalline TiO_2 as an efficient and reusable catalyst for the chemoselective trimethylsilylation of primary and secondary alcohols and phenols显示文摘Nanocrystalline TiO2 是被使用一有效并且为有 hexamethyldisilazane (HMDS ) 的主要、不太妨碍的第二等的白酒和酚的 chemoselective trimethylsilylation 的 recyclable 催化剂。所有反应在温和、完全异构的条件下面被执行在对优秀收益好。 | Farhad Shirini Meysam Alipour Khoshdel Masoumeh Abedini Seyyed Vahid Atghia | 2011 | Chinese Chemical Letters2011，22，10： | 3 |
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