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Plant-based synthesis of NiO nanoparticles using salvia macrosiphon Boiss extract and examination of their water treatment

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Rare Metals 2020年第10期39卷 1134-1144页

作者： Zahra Sabouri Narges Fereydouni Alireza Akbari Hasan Ali Hosseini Alireza Hashemzadeh Mohammad Sadegh Amiri reza kazemi Oskuee Majid Darroudi Department of Chemistry University of Payame NoorTehran 19395-4697Iran Neurogenic Inflammation Research Center University of Medical SciencesMashhad ***Iran NanoBioEletrochemistry Research Center University of Bam Medical SciencesBam ***Iran Department of Biology University of Payame NoorTehran 19395-4697Iran Targeted Drug Delivery Research Center Institute of Pharmaceutical TechnologyUniversity of Medical SciencesMashhad ***Iran Nuclear Medicine Research Center University of Medical SciencesMashhad ***Iran Department of Modern Sciences and Technologies School of MedicineUniversity of Medical SciencesMashhad ***Iran

The goal of this study was to synthesize nickel oxide nanoparticles(NiO-NPs)by the sol-gel method,which involved the use of salvia macrosiphon Boiss plant extract,Ni(NO3)2·6 H2 O as a capping agent,and a nickel precursor,*** synthesized NiO-NPs were characterized by Fourier transform infrared spectroscopy(FTIR),ultraviolet-visible(UV-Vis)spectrophotometer,X-ray diffraction(XRD),field electron scanning electron microscopy(FESEM)/energy-dispersive X-ray spectroscopy(EDX),thermo-gravimetric analysis/differential thermal analysis(TGA/DTA)and vibrating sample magnetometer(VSM)***,according to the results of UV-Vis,the gap band of nanoparticles was calculated to be in the range of about 2.9-3.9 *** photocatalytic activity of nanoparticles on methylene blue(MB)degradation was investigated and according to the results,about 80%MB was apparently degraded in the presence of NiO-NPs under UV-A light(11 W)after 5 h in pH^*** have evaluated the cytotoxicity of NiO-NPs on the multiple tumor cells by materials method,and all the utilized concentrations were observed to cause non-toxic effects;therefore,it can be suggested that these samples have the potential of being employed in different fields of medicine.

关键词： Nickel oxide nanoparticles Sol-gel Photocatalytic degradation Salvia macrosiphon Boiss plant extract Cytotoxicity

A Direct Derivation of the Exact Fisher Information Matrix for Bivariate Bessel Distribution of Type I

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Applied Mathematics 2012年第3期3卷 276-282页

作者： Mohammad reza kazemi Alireza Nematollahi Department of Statistics College of Sciences Shiraz University Shiraz Iran Department of Statistics Fasa University Fasa Iran

This paper deals with a direct derivation of Fisher’s information matrix for bivariate Bessel distribution of type I. Some tools for the numerical computation and some tabulations of the Fisher’s information matrix ... 详细信息

关键词： Bessel Distribution Fisher Information Matrix Digamma Function

Fuzzy Control for Active Suspension in ADAMS/Car Full Vehicle

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Fuzzy Control for Active Suspension in ADAMS/Car Full Vehicl...

Development of a New Approach to Integrated Control of DYC/ARS Based on Fuzzy Logic

第25届中国控制会议

作者： Farazandeh Azadeh kazemi reza Dept．of Mechanical Eng Khajeh Nasir Aldin e Toosi University of Technology Dept．of Mechanical Eng Khajeh Nasir Aldin e Toosi University of Technology

＜正＞In this research, fuzzy technique was considered to control an active suspension. The main targets in this study are elimination of the body bounce and pitch in normal ride and roll attitude as well as its bounce resulting from road bumps, on individual tires by using suspension system in both side of car and both axles. In order to have the ability to interpret the results of full model of vehicle in ADAMS, the method of crawl and walk and the classic models with lower degrees of freedom was used . The controller structure was designed in MATLAB/Simulink. The full process was implemented using link between ADAMS as a Multi-Body Dynamics Simulator ＆ MATLAB as a control simulation environment. Finally ride comfort of vehicle equipped with fuzzy controller shows a considerable increase with respect to ISO 2631 criteria.

关键词： Fuzzy Control Vehicle Dynamics Ride Comfort Bounce Pitch Roll Movements

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Development of a New Approach to Integrated Control of DYC/A...

An ensemble deep learning model for cyber threat hunting in industrial internet of things

2005国际机械工程与力学会议

作者： reza KARBALAEI reza kazemi Ali GHAFFARI S.Hamed TABATABAEI Department of Mechanical Engineering Azad University South Branch of Tehran

An integrated vehicle dynamics control system by coordinating active rear steering （ARS） and direct yaw-moment control （DYC） based on a new concept is developed in this paper. The control system has a hierarchical structure and consists of two controlling layers. A fuzzy logic controller is used in the upper layer （yaw rate controller） to keep the yaw rate in its desired value. The yaw rate error and its rate of change are applied to the upper controlling layer as inputs, where the direct yaw moment control signal and the steering angle of the rear wheels are built as the outputs. In the lower layer （fuzzy integrator）, a fuzzy logic controller is designed based on the working region of the lateral tire forces. In the next stage, taking into consideration the direction of lateral forces in the rear wheels, a switching function is introduced and utilizes in fuzzy integrator. The characteristics of the integrated control system are analyzed using Matlab/Simulink and a series of comparisons are made with the system without control and the DYC/ARS ＆ DYC systems. The simulation results by using of nonlinear seven degrees of freedom vehicle model illustrate that considerable improvements are achieved in vehicle handling and driving dynamics through the integrated DYC/ARS control system in comparison with the individual DYC controller.

关键词： Active rear steering Direct yaw-moment control Fuzzy logic controller Fuzzy integrator

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Digital Communications and Networks 2023年第1期9卷 101-110页

作者： Abbas Yazdinejad Mostafa kazemi reza M.Parizi Ali Dehghantanha Hadis Karimipour Cyber Science Lab School of Computer ScienceUniversity of GuelphOntarioCanada Department of Electrical Engineering Faculty of EngineeringShahed UniversityTehranIran College of Computing and Software Engineering Kennesaw State UniversityGAUSA School of Engineering University of GuelphOntarioCanada

By the emergence of the fourth industrial revolution,interconnected devices and sensors generate large-scale,dynamic,and inharmonious data in Industrial Internet of Things(IIoT)*** vast heterogeneous data increase the challenges of security risks and data analysis *** IIoT grows,cyber-attacks become more diverse and complex,making existing anomaly detection models less effective to *** this paper,an ensemble deep learning model that uses the benefits of the Long Short-Term Memory(LSTM)and the AutoEncoder(AE)architecture to identify out-of-norm activities for cyber threat hunting in IIoT is *** this model,the LSTM is applied to create a model on normal time series of data(past and present data)to learn normal data patterns and the important features of data are identified by AE to reduce data *** addition,the imbalanced nature of IIoT datasets has not been considered in most of the previous literature,affecting low accuracy and *** solve this problem,the proposed model extracts new balanced data from the imbalanced datasets,and these new balanced data are fed into the deep LSTM AE anomaly detection *** this paper,the proposed model is evaluated on two real IIoT datasets-Gas Pipeline(GP)and Secure Water Treatment(SWaT)that are imbalanced and consist of long-term and short-term dependency on *** results are compared with conventional machine learning classifiers,Random Forest(RF),Multi-Layer Perceptron(MLP),Decision Tree(DT),and Super Vector Machines(SVM),in which higher performance in terms of accuracy is obtained,99.3%and 99.7%based on GP and SWaT datasets,***,the proposed ensemble model is compared with advanced related models,including Stacked Auto-Encoders(SAE),Naive Bayes(NB),Projective Adaptive Resonance Theory(PART),Convolutional Auto-Encoder(C-AE),and Package Signatures(PS)based LSTM(PS-LSTM)model.

关键词： Internet of things IIoT Anomaly detection Ensemble deep learning Neural networks LSTM

ZnO Nanoparticles as Ethanol Gas Sensors and the Effective Parameters on Their Performance

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Journal of Materials Science & Technology 2013年第5期29卷 393-400页

作者： Asieh Sadat kazemi reza Afzalzadeh Mohamadreza Abadyan Bojnourd Branch Islamic Azad UniversityBojnourdIran School of Physics Khajeh Nasir Toosi University of TechnologyTehranIran Shahrekord Branch Islamic Azad UniversityShahrekordIran

ZnO nanoparticles are synthesized and applied as ethanol gas sensors. In some cases, the sensitivity and response time of these particles are shown to be higher than that has been reported in the literature. It has been investigated that the most possible reason for this higher gas sensing performance can be attributed to the quantity of the activity coefficient of its initial components. However, other effects such as pH and thermal decomposition are of importance as well. Specific ion interaction （SIT） model is applied to derive the mean activity coefficient values of the additives used in synthesis of ZnO nanoparticles.

关键词： ZnO nanoparticles Gas sensors Activity coefficient pH Thermal decomposition

Robust design of static synchronous series compensator-based stabilizer for damping inter-area oscillations using quadratic mathematical programming

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第4期11卷 296-306页

作者： Mahmoud reza SHAKARAMI Ahad kazemi Center of Excellence for Power System Automation and Operation Department of Electrical EngineeringIran University of Science and Technology

This paper presents a procedure for designing a supplementary damping stabilizer for a static synchronous series compensator(SSSC) in multi-machine power *** objective is to shift the lightly damped inter-area modes toward the prescribed stability region.A lead-lag stabilizer is used to demonstrate this technique,in which a particular measure of stabilizer gain is considered as an objective *** of the problem for phase-lead and lag structures are *** objective function with the constraints is formed as a quadratic mathematical programming *** robust design,the parameters of the stabilizer are calculated under various operating *** types of SSSC-based stabilizer have been presented and *** results including eigenvalue analysis and the nonlinear simulations on the 4-and 50-machine power systems are pre-sented to show the effectiveness of the proposed method.

关键词： Inter-area oscillations Static synchronous series compensator(SSSC) Damping stabilizer Robust design Quadratic mathematical programming

Hypospadias in toddlers:a multivariable study of prognostic factors in distal to mid-shaft hypospadias and review of literature

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World Journal of Pediatric Surgery 2022年第1期5卷 47-54页

作者： M reza Roshandel Tannaz Aghaei Badr Fahimeh kazemi Rashed Samantha Salomon Seyyed Mohammad Ghahestani Fernando A Ferrer Department of Urology Icahn School of Medicine at Mount SinaiNew YorkNew YorkUSA Icahn School of Medicine at Mount Sinai New YorkNew YorkUSA Department of Urology Tabriz University of Medical SciencesTabrizIran Department of Family Medicine St John’s Episcopal HospitalFar RockawayNew YorkUSA Department of Urology Tehran University of Medical SciencesTehranIran

Background Tubularized incised plate urethroplasty is the most common hypospadias repair ***,there are unanswered questions and debates about the anatomical prognostic factors affecting the repair *** study tried to address some of the problems in the studies compromising the results of the current body of *** A prospective cohort of 101 males aged 1-3 years undergoing primary distal to mid-shaft hypospadias repair were enrolled in the *** including edema,erection,inadvertent removal of the urethral stent,surgical wound infection,bladder spasm,hematoma,and hemorrhage were *** in the current literature were reviewed to achieve a better perspective for future *** Persistent complications were found in 16 cases(15.8%)including fistula formation,the persistence of chordee,meatal stenosis,glans,and urethral *** mean follow-up time was 6.6±3.4 *** the single-variable analysis,the meatal location,the length and width of the urethral plate,and the reversible acute postoperative events were significantly associated with the ***,fistula formation was associated with acute surgical site infection(p0.05).Conclusions Our study on the toddlers with hypospadias surgery revealed that the location of urethral meatal was the main predicting factor in the development of major ***,the fistula formation at the infected surgical site emphasizes the importance of postsurgical care.

关键词： bladder wound dimensions

Responses of Four Rice Varieties to Elevated CO_2 and Different Salinity Levels

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Rice science 2018年第3期25卷 142-151页

作者： Sheidollah kazemi Hamid reza ESHGHIZADEH Morteza ZAHEDI Department of Agronomy and Plant breeding College of Agriculture Isfahan University of Technology

This study was carried out in 2014 at Isfahan University of Technology, Iran, to evaluate the responses of four rice varieties(Neda, Deylamani, Shiroudi and Domsorkh) to ambient(360 ± 50 μmol/mol) and elevated(700 ± 50 μmol/mol) air carbon dioxide(CO_2) concentrations under four salinity levels(0, 30, 60 and 90 mmol/L Na Cl). There was significant variation among rice varieties in response to elevated CO_2 concentration under the four salinity levels. Under non-saline condition, elevated CO_2 increased the dry weight of Neda, Deylamani and Domsorkh by 8%, 50% and 8%, respectively, but reversely decreased that of Shiroudi by 34%. Increasing CO_2 concentration significantly reduced the negative effects of salinity on Shiroudi, but these effects were even increased in Deylamani and Domsorkh under all the salinity levels and in Neda only under 30 and 60 mmol/L Na Cl. Significant correlations were established between plant dry weight, SPAD value and leaf area under both CO_2 levels. However, this trend was observed only at ambient CO_2 concentration in the presence of soluble carbohydrates. The results revealed the genotype and salinity dependence of the effects of CO_2 concentrations on the rice traits investigated.

关键词： CO2 concentration genetic diversity salt tolerance water soluble carbohydrate