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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

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Evaluating the Economic Impact of Users’Personality on Selection of Demand Response Programs

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CSEE Journal of Power and Energy Systems 2023年第3期9卷 1036-1050页

作者： hossein Khorramdel Mohsen Gitizadeh Pierluigi Siano Sara Bakhtiari Department of Electronics and Electrical Engineering Shiraz University of TechnologyShirazIran Department of Management&Innovation Systems University of SalernoVia Giovanni PaoloⅡ132Fisciano(SA)-84084Italy Department of Electrical and Electronic Engineering Science University of JohannesburgJohannesburg 2006South Africa Power Systems Studies Center of Shiraz University of Technology ShirazIran

Demand response creates an opportunity for consumers to play an important role in the development of smart *** the advent of renewable energies and their uncertainties,demand response provides a possible solution to resolve these *** addition to demand response schemes in the presence of renewable energy,the personality types of consumers can influence the choice of tariffs and change their electricity *** this paper,first,household residents with different types of personalities are considered as energy ***,the uncertainty of renewable energy sources is considered for the distributed generations scheduling by using a stochastic method called the Here-and-Now approach and considering three tariffs,time of use,real-time pricing,and direct load control in the residential sector to reduce total ***,the tariff choice is compared based on people preferences via various personality types,the Myers-Briggs Type Indicator test,and simulations ***,a probabilistic unit commitment methodology is used for distributed generations scheduling to minimize the total *** financial losses caused by non-optimal tariffs selection are determined through the comparison of *** results show that time of use and direct load control tariffs are optimal ones in summer and winter seasons,respectively.

关键词： Demand response renewable energy smart grid unit commitment

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Parametric Study of Hip Fracture Risk Using QCT-Based Finite Element Analysis

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Computers, Materials & Continua 2022年第4期71卷 1349-1369页

作者： hossein Bisheh Yunhua Luo Timon Rabczuk Department of Mechanical Engineering University of ManitobaWinnipegR3T 5V6Canada Institute of Structural Mechanics Bauhaus-Universität WeimarWeimar99423Germany Department of Biomedical Engineering University of ManitobaWinnipegR3T 5V6Canada

Various parameters such as age,height,weight,and body mass index(BMI)influence the hip fracture risk in the elderly which is the most common injury during the sideways *** paper presents a parametric study of hip fracture risk based on the gender,age,height,weight,and BMI of subjects using the subject-specific QCT-based finite element modelling and simulation of single-leg stance and sideways fall *** fracture risk is estimated using the strain energy failure criterion as a combination of bone stresses and strains leading to more accurate and reasonable results based on the bone failure *** the effects of various parameters on hip fracture risk can help to prescribe more accurate preventive and treatment plans for a community based on the gender,age,height,weight,and BMI of the *** of this study show an increase in hip fracture risk with the increase of age,body height,weight,and BMI in both women and men under the single-leg stance and the sideways fall configurations.

关键词： Hip fracture risk finite element model strain energy parametric study

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Effects of turmeric(Curcuma longa)and its constituent(curcumin)on the metabolic syndrome:An updated review

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Journal of Integrative Medicine 2022年第3期20卷 193-203页

作者： Zeinab Vafaeipour Bibi Marjan Razavi hossein hosseinzadeh Student Research Committee Mashhad University of Medical SciencesMashhad ***Iran Department of Pharmacodynamics and Toxicology School of PharmacyMashhad University of Medical SciencesMashhad ***Iran Targeted Drug Delivery Research Center Pharmaceutical Technology InstituteMashhad University of Medical SciencesMashhad ***Iran Pharmaceutical Research Center Pharmaceutical Technology InstituteMashhad University of Medical SciencesMashhad ***Iran

Metabolic syndrome(MS)involves people with the following risk factors:obesity,hypertension,high glucose level and *** can increase the risk of heart disease,stroke and type 2 diabetes *** prevalence of MS in the world’s adult population is about 20%–25%.Today,there is much care to use medicinal ***(Curcuma longa)as well as curcumin which is derived from the rhizome of the plant,has been shown beneficial effects on different components of ***,the purpose of this manuscript was to introduce different in vitro,in vivo and human studies regarding the effect of turmeric and its constituent on ***,different mechanisms of action by which this plant overcomes MS have been *** on studies,turmeric and its bioactive component,curcumin,due to their anti-inflammatory and antioxidant properties,have antidiabetic effects through increasing insulin release,antihyperlipidemic effects by increasing fatty acid uptake,anti-obesity effects by decreasing lipogenesis,and antihypertensive effects by increasing nitric *** to several in vivo,in vitro and human studies,it can be concluded that turmeric or curcumin has important values as a complementary therapy in ***,more clinical trials should be done to confirm these effects.

关键词： Turmeric Curcuma longa Curcumin Metabolic syndrome Diabetes Hyperlipidemia

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Rhizobacteria facilitate physiological and biochemical drought tolerance of Halimodendron halodendron (Pall.) Voss

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Journal of Arid Land 2023年第2期15卷 205-217页

作者： Mohammad hossein TAGHIZADEH Mohammad FARZAM Jafar NABATI Department of Range and Watershed Management Ferdowsi University of MashhadMashhad ***Iran Legume Department Research Center for Plant SciencesFerdowsi University of MashhadMashhad ***Iran

Growth-promoting bacteria(GPB)have shown promising effects on serving plants against environmental constraints such as ***,simultaneous effects of different GPB have less been considered for arid land plants and under field *** investigated the effects of single and combined application of GPB,including free-living nitrogen-fixing bacteria(NFB),phosphate solubilizing bacteria(PSB),potassium solubilizing bacteria(KSB),a combination of NFB,PSB,and KSB(NPK),and control,at three drought stress *** order to better understand the interactions between drought and GPB,we measured the morphological,biochemical,and physiological plant *** target plant was salt tree(Halimodendron Halodendron(Pall.)Voss),a legume shrub native to arid lands of Central and West *** biofertilizer treatments enhanced the growth,physiology,and biochemistry of salt tree seedlings,and there were significant differences among the *** and PSB treatments increased photosynthetic pigments,but KSB treatment was more efficient in transpiration rate and stomatal regulation and increased the soluble *** treatment had the highest effect on root traits,such as taproot length,root volume,cumulative root length,and the ratio of root to *** treatment enhanced root diameter and induced biomass translocation between root ***,only the application of mixed biofertilizer(i.e.,NPK treatment)was the most significant treatment to improve all plant morphological and physiological characteristics of salt tree under drought ***,our results provided improvement of some specific plant traits simultaneous with application of three biofertilizers to increase growth and establishment of salt tree seedlings in the degraded arid lands.

关键词： growth-promoting bacteria physiological traits drought stress biofertilizer root traits Halimodendron Halodendron(Pall.)Voss

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First Record of Sexual Dimorphism in Toxasterid Echinoid Heteraster from the Early Cretaceous Deposits of the Kopet-Dagh Basin,NE Iran

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地质学报:英文版 2023年第5期97卷 1318-1334页

作者： hossein KAMYABI SHADAN Morteza TAHERPOUR KHALIL-ABAD Exploration Directorate of the National Iranian Oil Company TehranIran Young Researchers and Elite Club Mashhad BranchIslamic Azad UniversityMashhadIran

Spatangoid echinoids belonging to Heteraster found in the Lower Cretaceous limestones and calcareous deposits of the Tirgan and Sarcheshmeh formations(Barremian-Aptian)in the Bahman jan-Bala stratigraphic section on the northern flank of the Borouj syncline,situated in the eastern Kopet-Dagh Basin,northeastern Iran are assessed as a sexually dimorphic *** dimorphism is a common feature in echinoids and,in this study of Heteraster renngarteni Poretzkaja,1961,sexual dimorphism has been detected for the first time in the family Toxasteridae.

关键词： invertebrate paleontology echinodermata Heteraster sexual dimorphism Barremian–Aptian Kopet-Dagh Iran

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Survivability evaluation for networks carrying complex traffic flows

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Digital Communications and Networks 2023年第2期9卷 534-544页

作者： Amin Jamali Mehdi Berenjkoub hossein Saidi Behrouz Shahgholi Ghahfarokhi Faculty of Computer Engineering University of IsfahanIsfahan***Iran Department of Electrical and Computer Engineering Isfahan University of TechnologyIsfahan***Iran

The capability of a system to fulfill its mission promptly in the presence of attacks,failures,or accidents is one of the qualitative definitions of *** this paper,we propose a model for survivability quantification,which is acceptable for networks carrying complex traffic *** network traffic is considered as general multi-rate,heterogeneous traffic,where the individual bandwidth demands may aggregate in complex,nonlinear *** probability is the chosen measure for survivability *** study an arbitrary topology and some other known topologies for the *** and dependent failure scenarios as well as deterministic and random traffic models are ***,we provide survivability evaluation results for different network *** results show that by using about 50%of the link capacity in networks with a relatively high number of links,the blocking probability remains near zero in the case of a limited number of failures.

关键词： Blocking probability Complex traffic Link failure Network survivability Disaster recovery Information assurance

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Enhancing the Robustness of Visual Object Tracking via Style Transfer

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Computers, Materials & Continua 2022年第1期70卷 981-997页

作者： Abdollah Amirkhani Amir hossein Barshooi Amir Ebrahimi School of Automotive Engineering Iran University of Science and TechnologyTehran16846-13114Iran School of Electrical Engineering and Computing The University of NewcastleCallaghan2308Australia

The performance and accuracy of computer vision systems are affected by noise in different *** numerous solutions and algorithms have been presented for dealing with every type of noise,a comprehensive technique that can cover all the diverse noises and mitigate their damaging effects on the performance and precision of various systems is still *** this paper,we have focused on the stability and robustness of one computer vision branch(i.e.,visual object tracking).We have demonstrated that,without imposing a heavy computational load on a model or changing its algorithms,the drop in the performance and accuracy of a system when it is exposed to an unseen noise-laden test dataset can be prevented by simply applying the style transfer technique on the train dataset and training the model with a combination of these and the original untrained *** verify our proposed approach,it is applied on a generic object tracker by using regression *** method’s validity is confirmed by testing it on an exclusive benchmark comprising 50 image sequences,with each sequence containing 15 types of noise at five different intensity *** OPE curves obtained show a 40%increase in the robustness of the proposed object tracker against noise,compared to the other trackers considered.

关键词： Style transfer visual object tracking robustness corruption

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Mechanistic simulation of fracture effects on miscible CO_(2)injection

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Petroleum Research 2022年第4期7卷 437-447页

作者： Seyed Mohammad hossein Hashemi Behnam Sedaee Institute of Petroleum Engineering School of Chemical EngineeringCollege of EngineeringUniversity of TehranIran

Miscible injection of carbon dioxide(CO_(2))into oil reservoirs as an Enhanced Oil Recovery(EOR)method has proved to be highly *** to the volume of the world's recoverable oil resides inside the fractured reservoirs,investigation of the controlling parameters in the efficient injection of miscible CO_(2) is of paramount importance,mainly owing to the intricacies and complexities associated with this *** complexity in fractured reservoirs arises due to the presence of two distinct media for fluid transfer(i.e.,matrix and fracture network)and the corresponding differences in fluid ***,performance of miscible carbon dioxide injection in these reservoirs was investigated through mechanistic simulation model in the form of dual-porosity(DP),and dual porosity-dual permeability(DPP).Moreover,due to limited supply and high injection costs of this gas in its pure form,performance of the miscible CO_(2) injection combined with C_(1),N_(2),and H_(2)S was also surveyed and compared to pure gas injection case.A sensitivity analysis was also performed based on fracture porosity,fracture horizontal and vertical permeability,matrix horizontal permeability,block height shape factor,matrix capillary pressure,and impure injected components in DP and DPP models,showing that matrix horizontal permeability and capillary pressure have the greatest,and porosity has the lowest impact on miscibility performance and oil recovery in these *** the end,after investigating the effect of different injection cases on miscibility performance and oil recovery,it was concluded that the highest oil recovery in miscible gas injection obtained through optimization of a gas composition having the lowest minimum miscibility pressure(MMP)and the lowest density.

关键词： Naturally fractured reservoir Carbon dioxide Miscibility Impurity Simulation

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Application of Statistical Methods to Biomarkers for Geochemical Evaluation and Genetic Type Determination of Gas Condensates in the Persian Gulf and Coastal Fars,Southern Iran

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Acta Geologica Sinica(English Edition) 2022年第4期96卷 1246-1256页

作者： Mohammad Javad SEIDY Mohammad hossein SABERI Petroleum Engineering Department Semnan UniversitySemnanIran The New Technology Campus Petroleum Engineering DepartmentSemnan UniversitySemnanIran

In a comprehensive geochemical study,the genetic relationships among 14 samples of gas condensates from the Persian Gulf were investigated for the purpose of evaluating the respective source rocks in terms of both age and sedimentary *** analysis was used for categorization and determination of a certitude range to determine the genetic type of the condensate families in the studied *** samples were collected from Late Permian-Triassic reservoirs(Dalan and Kangan formations)located in 6 gasfields(gas condensate)hosting some of Iran’s most important gas/gas condensate *** by gas chromatography-mass spectrometry(GC-MS),a total of 16 biomarker parameters(10 maturity-related parameters and 6 sedimentary environment-related parameters)were used to evaluate the samples in terms of thermal maturity(and hence their positions in the maturity chart),the sedimentary environment of the source rock and the *** of Hierarchical Clustering Analysis(HCA)and Principal Component Analysis(PCA)to the collected data led to the categorization of the samples into three main genetic groups,Ⅰ-Ⅲ.GroupsⅠandⅢwere found to be located in the east and the west of the Persian Gulf,respectively,while GroupⅡwas developed between the two other groups.

关键词： gas condensate satistical methods genetic linkage thermal maturation Persian Gulf Coastal Fars

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