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Applying Neural Networks for Tire Pressure Monitoring Systems

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Structural Durability & Health Monitoring 2019年第3期13卷 247-266页

作者： Alex Kost Wael A.Altabey Mohammad noori Taher Awad Mechanical Engineering Department California Polytechnic State UniversitySan Luis ObispoCA 93405USA International Institute for Urban Systems Engineering(IIUSE) Southeast UniversityNanjingChina Nanjing Zhixing Information Technology Co. Ltd.NanjingChina Mechanical Engineering Department Faculty of EngineeringAlexandria UniversityAlexandria21544Egypt

A proof-of-concept indirect tire-pressure monitoring system is developed using artificial neural networks to identify the tire pressure of a vehicle tire.A quarter-car model was developed with MATLAB and Simulink to generate simulated accelerometer output *** data are used to train and evaluate a recurrent neural network with long short-term memory blocks(RNN-LSTM)and a convolutional neural network(CNN)developed in Python with *** Optimization via SigOpt was used to optimize training and model *** predictive accuracy and training speed of the two models with various parameters are ***,future work and improvements are discussed.

关键词： RNN-LSTM CNN artificial neural networks tire pressure monitoring systems

Nonlinear characterization of magnetorheological elastomer-based smart device for structural seismic mitigation

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International Journal of Smart and Nano Materials 2021年第4期12卷 390-428页

作者： Yang Yu Azadeh noori Hoshyar Huan Li Guang Zhang Weiqiang Wang Centre for Infrastructure Engineering Western Sydney UniversityPenrithNSWAustralia School of Engineering It and Physical ScienceFederation University AustraliaBrisbaneQLDAustralia School of Civil and Environmental Engineering University of Technology SydneyNSWAustralia College of Mechanical Engineering Zhejiang University of TechnologyHangzhouZhejiangChina eCollege of Water Conservancy and Hydropower Engineering Hohai UniversityNanjingJiangsuChina

Magnetorheological elastomer(MRE)has been demonstrated to be effective in structural vibration control because of controllable stiffness and damping properties with the effect of external magnetic *** achieve a high performance of MRE device-based vibration control,a robust and accurate model is necessary to describe nonlinear dynamics of MRE *** article aims at realising this target via nonlinear modeling of an innovative MRE device,*** vibration ***,the field-dependent properties of MRE isolator were analysed based on experimental data of the isolator in various dynamic ***,a phenomenal model was developed to account for these unique characteristics of MREbased ***,an improved PSO algorithm was designed to estimate model *** on identification results,a generalised model was proposed to clarify the field-dependent properties of the isolator due to varied currents,which was then validated by random and earthquake-excited test *** on the proposed model,a frequency control strategy was designed for semi-active control of MRE devices-incorporated smart structure for vibration ***,using a three-storey frame model and four benchmark earthquakes,a numerical study was conducted to validate the performance of control strategy based on the generalised current-dependent model with satisfactory results.

关键词： Magnetorheological elastomer device nonlinear characterization frequency control vibration suppression

Deterministic and fuzzy-based methods to evaluate community resilience

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Earthquake Engineering and Engineering Vibration 2018年第2期17卷 261-275页

作者： Omar Kammouh Ali Zamani noori Veronica Taurino Stephen A.Mahin Gian Paolo Cimellaro Department of Civil Structural & Geotechnical Engineering Politecnico di Torino Sim Center Byron and Elvira Nishkian Professor of Structural Engineering 777 Davis Hall University of California Department of Civil and Environmental Engineering University of California

Community resilience is becoming a growing concern for authorities and decision *** paper introduces two indicator-based methods to evaluate the resilience of communities based on the PEOPLES *** is a multi-layered framework that defines community resilience using seven *** of the dimensions is described through a set of resilience indicators collected from literature and they are linked to a measure allowing the analytical computation of the indicator’s *** first method proposed in this paper requires data on previous disasters as an input and returns as output a performance function for each indicator and a performance function for the whole *** second method exploits a knowledge-based fuzzy modeling for its *** method allows a quantitative evaluation of the PEOPLES indicators using descriptive knowledge rather than deterministic data including the uncertainty involved in the *** output of the fuzzy-based method is a resilience index for each indicator as well as a resilience index for the *** paper also introduces an open source online tool in which the first method is implemented.A case study illustrating the application of the first method and the usage of the tool is also provided in the paper.

关键词： Deterministic approach resilience indicators fuzzy method PEOPLES framework Earthquake resilience

A Deep Learning Based Approach for Response Prediction of Beam-like Structures

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Structural Durability & Health Monitoring 2020年第4期14卷 315-338页

作者： Tianyu Wang Wael A.Altabey Mohammad noori Ramin Ghiasi International Institute for Urban Systems Engineering Southeast UniversityNanjing210096China Department of Mechanical Engineering F aculty of EngineeringAlexandria UniversityAlexandnia21544Egypt Department of Mechanical Engineeing Califomia Polytechnic State UniversitySan Luis ObispoCA93405USA

Beam-like structures arde a class of common but important structures in *** the past few centuries,extensive research has been carried out to obtain the static and dynamic response of beam-like *** build-ing the finite element model to predict the response of these structures has proven to be effective,it is not always suitable in all the application cases because of high computational time or lack of *** paper proposes a novel approach to predict the deflection response of beam-like structures based on a deep neural net-work and the governing differential equation of Euler-Bernoulli *** Prandtl-Ishlinskii model is introduced as an element of prediction model to simu-late the plasticity of this beam *** the application of the proposed approach is demonstrated through four numerical examples including linear elastic/ideal plastic beam under concentrated/sinusoidal load and elastic/plastic continues beam under seismic load to demonstrate a proof of concept for the effectiveness of this AI-based approach.

关键词： Beam-like structure surogate model deep neural network Prandtl-Ishl inski model

Effect of Different Water Level on Growth of Arundo Donax

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Effect of Different Water Level on Growth of Arundo Donax

作者： MOHD YASIN noori 福建农林大学

学位级别：硕士

在全球范围内,低水的可利用性一直被视为主要的一个非生物环境因素,限制植物生长和作物生产。干旱与水资源短缺作为一个最大的逆境因子,对植物的正常生长和生态系统生产力产生影响。水分胁迫的适应是从胁迫信号感知、传导及由基因表达... 详细信息

在全球范围内,低水的可利用性一直被视为主要的一个非生物环境因素,限制植物生长和作物生产。干旱与水资源短缺作为一个最大的逆境因子,对植物的正常生长和生态系统生产力产生影响。水分胁迫的适应是从胁迫信号感知、传导及由基因表达所调节的代谢变化的一系列复杂反应机制结果。在干旱胁迫时,植物在整个植株、细胞和分子水平上表现出广泛的适应性反应。在整个植株水平上,干旱的结果通常表现为植物光合作用效率和生长速度下降。光合活性的降低由几个协同事件导致,如植物气孔关闭和光合作用相关酶活性的降低等。植物水分胁迫的适应性是许多不同生理生化机制的结果。水分胁迫对植物的影响程度是由胁迫强度、持续时间以及遗传决定的特定物种应对环境胁迫的能力所决定的。芦竹(Arundo donax)作为一种普遍被记载,具有深厚的根系系统的物种,在相对干旱和缺水环境条件下,具有一定的适应性。然而,目前关于芦竹在水资源短缺和干旱环境下的生长状况的研究相对缺乏。可以假设缺水影响芦竹生长是由芦竹生长和快速覆盖单位紊乱导致。为了研究这一假说,在水分控制条件下,通过芦竹生长试验,研究芦竹的生理生化反应、地上和地下部分变化。作为具有深根系统的芦竹,可能是在沙漠区种植,进行植被恢复的理想候选物种。作为正在进行的关于芦竹适应性研究的一部分,本试验研究了在不同灌溉水平下,芦竹光合效率、叶绿素荧光、植株生长高度、叶片数、茎粗和地下部分(根系)生长情况等。研究表明,在低灌溉用水条件下,芦竹对于逆境具有一定的耐受性。据研究结果,我们建议应用芦竹这一物种作为在干旱沙漠地区植被恢复、荒漠变绿洲的植物。本研究比较分析了不同水分灌溉条件下,芦竹的生理生化反应。为了更好地了解芦竹对于水分和干旱胁迫的耐受性,还需要进一步的研究来阐明芦竹在干旱胁迫下的适应机理。

关键词：芦竹干旱胁迫灌溉光合作用生长

Sheathless and fluoroscopy-free retrograde intrarenal surgery:An attractive way of renal stone management in high-volume stone centers

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Asian Journal of Urology 2020年第3期7卷 309-317页

作者： Sarwar noori Mahmood Hewa Toffeq Saman Fakhralddin University of Sulaimani College of Medicine KurdistanIraq Sulaimania General Teaching Hospital SulaimaniaIraq

Objective:To evaluate the efficacy and safety of sheathless and fluoroscopy-free flexible ureterorenoscopic laser lithotripsy(FURSL)for treating renal ***:Between May 2015 and May 2017,135 patients with renal stones treated with sheathless and fluoroscopy-free FURSL were prospectively *** technique involved a semirigid ureteroscopic assessment of the ureter,and the guidewire was left in situ to railroad the flexible ureteroscope.A holmium laser was used to fragment and dust the stones;fragments were neither grasped nor ***:The study population consisted of 135 patients including 85 males(62.96%)and 50 females(37.04%)with a mean age of 40.65 years(range:3-70 years)were *** mean stone size was 17.23 mm(range:8-41 mm).Complete stone-free status was achieved in 122(90.37%)patients and clinically insignificant residual fragments(CIRF)in two(1.48%),while residual stones were still present in 11(8.15%)*** complications occurred in 23(17.4%)cases and were mostly minor,including fever in 17(12.6%),pyelonephritis in four(3.0%),subcapsular hematoma in one(0.7%)and steinstrasse in one(0.7%).These complications were Clavien Ⅰ-Ⅱ,GⅠ in 17(12.6%)patients,GⅡ in five(3.7%),and Clavien Ⅲb in one(0.7%).No major complications were *** size2 cm,operative time ≥30 min,and lasing time ≥20 min were significantly associated with a higher rate of complications and lower stone-free rates upon univariate analysis(p<0.05).Conclusion:Sheathless and fluoroscopy-free FURSL are effective and safe for renal stone management,especially for stones under 2 cm in *** process is a feasible option for avoiding sheath complications,which can protect surgeons from the negative effects of radiation.

关键词： Renal stone Retrograde intrarenal surgery Sheathless flexible ureterorenoscopy Fluoroless retrograde intrarenal surgery

Assessment of sediment yield using RS and GIS at two sub-basins of Dez Watershed,Iran

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International Soil and Water Conservation Research 2016年第3期4卷 199-206页

作者： Hamed noori Seyed Mostafa Siadatmousavi Barat Mojaradi School of Civil Engineering Iran University of Science&TechnologyNarmakTehran ***Iran

Soil erosion is a serious threat to soil and water resources in semi-arid *** Pacific Southwest Inter Agency Committee(MPSIAC)and Erosion Potential Method(EPM),as two well-known models,have shown their performance in many case *** goal of present study is to assess the efficiency of these methods for estimating the sediments yield and erosion intensity within short-term and longterm timeframes over two sub-basins of Dez watershed,west of *** results showed that the study area can be categorized into slight,moderate,high and very high erosion *** half of the study area is highly susceptible to erosion due to the geological formations and land ***,the longterm(i.e.30 years)sediment yield of 387 and 615(kton)y^(-1) estimated by MPSIAC and EPM models demonstrated the superiority of *** to the measured value of 612(kton)y^(-1),the performance of EPM was *** splitting the dataset into six periods of five years,the sediment yield was predicted in short-term periods by both aforementioned *** segmentation provides the opportunity to evaluate the impact of extreme flooding events on the models *** results showed that both models failed in estimation of sediment load during flood ***,the correlation coefficients for estimating the sediment yield were found to be R=0.93 and R=0.85 for EPM and MPSIAC models respectively,for short-term simulations.

关键词： Soil erosion GIS Remote sensing Modified Pacific South-West Inter Agency Committee method(MPSIAC) Erosion Potential Method(EPM)

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交通量持续增长下大跨桥梁时变极值外推分析

工程力学 2018年第7期35卷 159-166页

作者：鲁乃唯刘扬 noori Mohammad 长沙理工大学土木与建筑学院湖南长沙410114 东南大学土木工程学院江苏南京210096 加州州立理工大学机械工程学院加利福尼亚奥比斯波93410

随着交通运输行业的迅速发展,持续增长的交通荷载逐步成为威胁既有桥梁运营安全的重要因素。为了研究现有交通荷载持续增长对大跨桥梁安全水平的影响,提出考虑交通量区间增长的车载效应极值外推方法,采用基于"时间离散"和"极值概率串联... 详细信息

随着交通运输行业的迅速发展,持续增长的交通荷载逐步成为威胁既有桥梁运营安全的重要因素。为了研究现有交通荷载持续增长对大跨桥梁安全水平的影响,提出考虑交通量区间增长的车载效应极值外推方法,采用基于"时间离散"和"极值概率串联"的改进Rice公式捕捉交通量持续增长导致极值概率的时变特征,由两个数值算例验证考虑交通量增长的时变极值外推的精确性。基于某高速公路实测车流数据模拟了随机车流,预测了车流量线性增长下悬索桥运营期内的最大位移。研究结果表明:交通量增长导致荷载极值时变特征显著,基于独立同分布假定的经典极值理论与Rice公式均无法准确地对拟合高尾极值,而改进Rice公式可精准拟合并外推极值;在交通量年增长系数为1%~3%时,某悬索桥设计基准期内的车载效应放大系数为1.30~1.98;若交通量年增长系数大于3%,则该桥梁1000年重现期的最大位移将大于设计标准值。

关键词：大跨度桥梁交通荷载随机过程极值理论交通量

A Fatigue Damage Model for FRP Composite Laminate Systems Based on Stiffness Reduction

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Structural Durability & Health Monitoring 2019年第1期13卷 85-103页

作者： Ying Zhao Mohammad noori Wael A.Altabey Ramin Ghiasi Zhishen Wu International Institute for Urban Systems Engineering(IIUSE) Southeast UniversityNanjingChina Mechanical Engineering Department California Polytechnic State UniversitySan Luis ObispoCA 93405USA Mechanical Engineering Department Faculty of EngineeringAlexandria UniversityAlexandria21544Egypt Department of Civil Engineering Faculty of EngineeringUniversity of Sistan and BaluchestanZahedanIran

This paper introduces a stiffness reduction based model developed by the authors to characterize accumulative fatigue damage in unidirectional plies and(0/θ/0)composite laminates in fiber reinforced polymer(FRP)composite *** proposed damage detection model is developed based on a damage evolution mechanism,including crack initiation and crack damage progress in matrix,matrix-fiber interface and *** result demonstrates that the corresponding stiffness of unidirectional composite laminates is reduced as the number of loading cycles ***,three common models in literatures are presented and *** viscosity,Young’s modulus and ultimate tensile stress of composites are incorporated as key factors in this model and are modified in accordance with *** types of FRP composite property parameters,including Carbon Fiber Reinforced Polymer(CFRP),Aramid Fiber Reinforced Polymer(AFRP),Glass Fiber Reinforced Polymer(GFRP),and Basalt Fiber Reinforced Polymer(BFRP),are considered in this research,and a comparative parameter study of FRP unidirectional composite laminates with different off-angle plies using control variate method are *** is concluded that the relationship between the drop in stiffness and the number of cycles also shows three different regions,following the mechanism of damage of FRP composites and the matrix is the dominant factor determined by temperature,while fiber strength is the dominant factor that determine the reliability of composite.

关键词： FRP laminates fatigue damage model stiffness reduction thermal effect