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International Journal of Mining Science and Technology 2015年第3期25卷 439-445页

作者： Mohammadi Mohammad Hossaini Mohammad Farouq Mirzapour Bahman hajiantilaki nabiollah General Mechanic Co. Faculty of Mining Engineering Engineering University CollegeUniversity of Tehran

In order to increase the safety of working environment and decrease the unwanted costs related to overbreak in tunnel excavation projects, it is necessary to minimize overbreak percentage. Thus, based on regression analysis and fuzzy inference system, this paper tries to develop predictive models to estimate overbreak caused by blasting at the Alborz Tunnel. To develop the models, 202 datasets were utilized, out of which 182 were used for constructing the models. To validate and compare the obtained results,determination coefficient(R2) and root mean square error(RMSE) indexes were chosen. For the fuzzy model, R2 and RMSE are equal to 0.96 and 0.55 respectively, whereas for regression model, they are 0.41 and 1.75 respectively, proving that the fuzzy predictor performs, significantly, better than the statistical method. Using the developed fuzzy model, the percentage of overbreak was minimized in the Alborz Tunnel.

关键词： Fuzzy model Overbreak Regression analysis Underground blasting Alborz Tunnel

Use of GIS and BIM for the integration of tunnel designand construction process in conventional tunneling

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Underground Space 2024年第3期16卷 261-278页

作者： Mansour Hedayatzadeh Jamal Rostami Vasilis Sarhosis Mojtaba Nematollahi nabiollah hajiantilaki Abouzar Shafiepour University of Leeds Leeds LS29JTUK Colorado School of Mines GoldenCO 80401USA University of Minho Guimaraes 4800-058Portugal General Mechanic Company Tehran ***Iran Ettehadrah Consulting Engineers Tehran Q83GVWVIran

This paper presents the development of a framework for the parametric design of tunnels using geographic information system (GIS)mapping and building information modelling (BIM). According to the framework, a parametric representation of each system component (e.g., layers of rock mass, size of excavation, topography, fault geometry, primary lining, secondary lining, rock bolts, etc.) can beincorporated in the GIS model with high levels of detail and used for the automatic generation of numerical models for the design oftunnel construction. This parametric evaluation allows the designer to consider several levels of detail for each component, for the effi-cient design and process optimization in conventional tunneling. Information between parametric analysis and numerical simulations canbe freely exchanged with significantly reduced computational effort while results can be exported into BIM. It is anticipated that the proposed framework could lead to a comprehensive, yet efficient analysis of complex conventional tunneling project using parametric evaluations at the early design stages.

关键词： Geographic information system Building information modelling Conventional tunneling Numerical simulations Parametric analysis

Calculating the transient behavior of grounding systems using inverse Laplace transform

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Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第3期12卷 250-262页

作者： nabiollah RAMEZANI Seyed Mohammad SHAHRTASH Behshahr Branch Iran University of Science and TechnologyBehshahr 47137Iran Center of Excellence for Power Systems Automation and Operation Department of Electrical EngineeringIran University of Science and TechnologyTehran 16844Iran

This paper deals with a unified and novel approach for analyzing the frequency and time domain performance of grounding *** proposed procedure is based on solving the full set of Maxwell's equations in the frequency domain,and enables the exact computation of very near fields at the surface of the grounding grid,as well as far fields,by simple and accurate closed-form expressions for solving Sommerfeld *** addition,the soil ionization is easily considered in the proposed *** frequency domain responses are converted to the time domain by fast inverse Laplace *** results are validated and have shown acceptable accuracy.

关键词： Electromagnetic field Near-field computation High frequency performance Soil ionization Grounding system Fast inverse Laplace transform

COMMON FIXED POINT THEOREMS FOR THREE MAPS IN DISCONTINUOUS G_b-METRIC SPACES

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Acta Mathematica Scientia 2014年第5期34卷 1643-1654页

作者： Jamal Rezaei ROSHAN nabiollah SHOBKOLAEI Shaban SEDGHI Vahid PARVANEH Stojan RADENOVI Department of Mathematics Qaemshahr Branch Islamic Azad University Department of Mathematics Babol Branch Islamic Azad University Department of Mathematics Gilan-E-Gharb Branch Islamic Azad University Faculty of Mechanical Engineering University of Belgrade Kraljice Marije 16 11 120 Beograd Serbia

In [Aghajani A, Abbas M, Roshan JR. Common fixed point of generalized weak contractive mappings in partially ordered Gb-metric spaces. Filomat, 2013, in press], using the concepts of G-metric and b-metric Aghajani et al. defined a new type of metric which is called generalized b-metric or Gb-metric. In this paper, we prove a common fixed point theorem for three mappings in Gb-metric space which is not continuous. An example is presented to verify the effectiveness and applicability of our main result.

关键词： common fixed point b-metric space G-metric space

Functionalized Graphene Oxide with Bismuth and Titanium Oxide Nanoparticles for Efficiently Removing Formaldehyde from the Air by Photocatalytic Degradation-Adsorption Process

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Journal of Analysis and Testing 2023年第4期7卷 444-458页

作者： Mohsen Mohammadi Asl Hamid Shirkhanloo nabiollah Mansouri Seyed Ali Reza Haji Seyed Mirzahosseini Farideh Atabi Department of Environmental Engineering Faculty of Natural Resource and EnvironmentScience and Research BranchIslamic Azad UniversityTehran 14778-93855Iran Research Institute of Petroleum Industry(RIPI) West BoulevardOlympic VillageTehran 14857-33111Iran

Formaldehyde(HCHO)is formed through the oxidation of volatile organic compounds(VOCs)and can cause human *** oxide and titanium oxide nanoparticles-functionalized nanographene oxide(Bi_(2)O_(3)/TiO_(2)@NGO)were used to rapidly remove the HCHO from the air by a photocatalytic degradation-adsorption process(PC-DAP).The formaldehyde vapor in pure air was generated in a dynamic system within a chamber,and flowed over Bi_(2)O_(3)/TiO_(2)@NGO adsorbent inside a fixed-bed quartz reactor(FBQR)under UV irradiation at optimized conditions(250C).At atmospheric pressure,the flow rate and gas hourly space velocity(GHSV)were adjusted to 300 mL/min and 100-450 L/h,*** radicals of HCHO and nanographene oxide(NGO)were generated through the UV-photochemical process,enhancing the chemical adsorption through the radicals’*** the other hand,the semi-degradation process by catalytic oxidation process converted some HCHO into raw materials of CO_(2)and H_(2)O,while the unconverted HCHO was physically absorbed by ***,the HCHO concentration in the outlet system was measured by gas chromatography with a flame ionization detector(GC-FID)after derivatizing formaldehyde with 2,4-dinitrophenylhydrazine(DNPH)and ***,efficient removal of HCHO from the air,the removal efficiency of more than 95%,was achieved through physical/chemical adsorption and the *** mean removal efficiencies for HCHO with Bi_(2)O_(3)-TiO_(2)@NGO,TiO_(2)@NGO,Bi_(2)O_(3)@NGO,and NGO were 98.7%,73.6%,61.8%,and 11.4%,respectively(n=10,RSD<5%).The methodology was validated by spiking different concentrations of standard HCHO into pure air.

关键词： Formaldehyde removal Air Functionalized graphene oxide UV radiation Photocatalytic degradation-adsorption process

An efficient counter-based Wallace-tree multiplier with a hybrid full adder core for image blending

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Frontiers of Information Technology & Electronic Engineering 2022年第6期23卷 950-965页

作者： Ayoub SADEGHI nabiollah SHIRI Mahmood RAFIEE Mahsa TAHGHIGH Department of Electrical Engineering.ShirazBranch Islamic Azad UniversityShiraz 71987-74731Iran

We present a new counter-based Wallace-tree(CBW)8×8 *** multiplier’s counters are implemented with a new hybrid full adder(FA)cell,which is based on the transmission gate(TG)*** proposed FA,TG-based AND gate,and hybrid half adder(HA)generate M:3(4≤M≤7)digital counters with the ability to save at least 50%area *** by 90 nm technology prove the superiority of the proposed FA and digital counters under different conditions over the state-of-the-art *** using the proposed cells,the CBW multiplier exhibits high driving capability,low power consumption,and high *** CBW multiplier has a 0.0147 mm^(2)die area in a *** post-layout extraction proves the accuracy of experimental *** image blending mechanism is proposed,in which a direct interface between MATLAB and HSPICE is used to evaluate the presented CBW multiplier in image processing *** peak signal-to-noise ratio(PSNR)and structural similarity index metric(SSIM)are calculated as image quality parameters,and the results confirm that the presented CBW multiplier can be used as an alternative to designs in the literature.

关键词： Full adder Transmission gate Counter Multiplier Three-dimensional layout Image blending

Efficient and optimized approximate GDI full adders based on dynamic threshold CNTFETs for specific least significant bits

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Frontiers of Information Technology & Electronic Engineering 2023年第4期24卷 599-616页

作者： Ayoub SADEGHI Razieh GHASEMI Hossein GHASEMIAN nabiollah SHIRI Department of Electrical Engineering Shiraz BranchIslamic Azad UniversityShiraz ***Iran School of Electrical Engineering Iran University of Science and TechnologyTehran ***Iran Department ofElectrical and Electronic Engineering Shiraz University of TechnologyShiraz ***Iran

Carbon nanotube field-effect transistors(CNTFETs) are reliable alternatives for conventional transistors, especially for use in approximate computing(AC) based error-resilient digital circuits. In this paper, CNTFET technology and the gate diffusion input(GDI) technique are merged, and three new AC-based full adders(FAs) are presented with 6, 6, and 8 transistors, separately. The nondominated sorting based genetic algorithm II(NSGA-II) is used to attain the optimal performance of the proposed cells by considering the number of tubes and chirality vectors as its variables. The results confirm the circuits' improvement by about 50% in terms of power-delay-product(PDP) at the cost of area occupation. The Monte Carlo method(MCM) and 32-nm CNTFET technology are used to evaluate the lithographic variations and the stability of the proposed circuits during the fabrication process, in which the higher stability of the proposed circuits compared to those in the literature is observed. The dynamic threshold(DT) technique in the transistors of the proposed circuits amends the possible voltage drop at the outputs. Circuitry performance and error metrics of the proposed circuits nominate them for the least significant bit(LSB) parts of more complex arithmetic circuits such as multipliers.

关键词： Carbon nanotube field-effect transistor(CNTFET) Optimization algorithm Nondominated sorting based genetic algorithm II(NSGA-II) Gate diffusion input(GDI) Approximate computing

Causes of delay in offering rabies post-exposure prophylaxis services in Abadeh district of Iran

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Journal of Acute Disease 2020年第1期9卷 20-26页

作者： Ahmad Karimi Behnam Karimi Ahmad Karimifard nabiollah Taherimotlagh Amin Kasraei Fatemeh Safikhani Fatemeh Majidpour Mohammad Yandarani Department of Communicable Disease Surveillance&Control Abadeh Health CenterShiraz University of Medical SciencesShirazIran Department Rescue Abadeh Red Crescent SocietyFars Red Crescent SocietyShirazIran Departments of Biostatistics and Epidemiology School of Public HealthShahid Sadoughi University of Medical SciencesYazdIran Department of Communicable Disease Surveillance&Control Ahram Health CenterBushehr University of Medical SciencesBushehrIran

Objective:To identify the reasons for delayed reception of post-exposure prophylaxis(PEP).Methods:In this cross-sectional study,a total of 1407 individuals with animal bites who were referred to the Abadeh Rabies Treatment Center were investigated using the census method from January 2012 to December *** patients were divided into two groups based on their delay times to referral and receive PEP:timely referral(less than 48 h after the bite)and delayed referral(equal to or longer than 48 h after the bite).Frequency,Chi-square,and logistic regression tests were ***:.The average delay time was(16.33±11.37)*** level of education(OR:3.87;95%CI:1.19-12.54;P=0.02),active economic age(21-35 and 36-50 years-old,OR:12.81;95%CI:3.16-51.97;P<0.001 and OR:3.83,95%CI:3.83-58.61;P<0.001 respectively),occupation(OR:9.16;95%CI:1.89-44.29;P=0.006),long distance from the rabies treatment center(OR:3.41;95%CI:2.03-5.72;P<0.001),bites by household and domestic animals(OR:12.22;95%CI:2.29-65.18,P=0.003),superficial injuries(OR:4.51;95%CI:1.38-14.73;P=0.01),and residence in rural area(OR:12.74;95%CI:6.58-24.66;P<0.001)had significant correlations with delayed referral of ***:To reduce the delay time,the high-risk groups should be informed about the importance of timely referral via educational ***,rabies treatment services should be rendered at the nearest possible center.

关键词： Rabies Zoonosis Post-exposure prophylaxis Rabies vaccines Abadeh

Epidemiological patterns of animal bites in Abadeh district of central Iran from 2012 to 2018: A cross-sectional study

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Journal of Acute Disease 2019年第6期8卷 265-268页

作者： Ahmad Karimi Behnam Karimi Ahmad Karimifard nabiollah Taherimotlagh Amin Kasraei Mohammad Yandarani Fatemeh Safikhani Fatemeh Majidpour Department of Communicable Disease Surveillance&Control Abadeh Health CenterShiraz University of Medical SciencesShirazIran Department of Rescue Abadeh Red Crescent SocietyFars Red Crescent SocietyShirazIran Department of Communicable Disease Surveillance&Control Ahram Health CenterBushehr University of Medical SciencesBushehrIran Departments of Biostatistics and Epidemiology School of Public HealthShahid Sadoughi University of Medical SciencesYazdIran

Objectives:To investigate the epidemiology of animal bites and associated factors in Abadeh district(central Iran)from 2012 to ***:In this cross-sectional study,1407 individuals with animal bites who were referred to the Abadeh Rabies Treatment Center were investigated by using the census method from 2012 to *** variables included the victim's demographic information(age,gender,occupation),the type of biting animals(dog,cat,and other animals),the domesticated and wild animals,the time of biting based on year and month,the residence location(urban or rural),the treatment status,and the anatomical location of the ***:The annual incidence rate of animal bites was 189.62 per 100000 *** 83.4%of the victims were *** average age was(33.66±18.97)years and individuals in the age range of 36-50 years were greater at *** of the animal bites were from dogs(77.8%).About two thirds(62.1%)of the bites were from household animals.A total of 57.1%of individuals lived in urban *** victims were engaged in farming and animal *** highest prevalence of animal bites(37.4%)happened in the *** of the patients had any clinical signs of ***:To reduce the incidence of animal bites,high-risk groups including farmers and ranchers should be educated about bite prevention,and it should be ensured that they are managed correctly.

关键词： Animal bite Rabies Zoonosis Post-exposure prophylaxis Rabies vaccines Epidemiology Abadeh