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Optimizing Deep Neural Networks for Face Recognition to Increase Training Speed and Improve Model Accuracy

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Intelligent Automation & Soft Computing 2023年第12期38卷 315-332页

作者： Mostafa Diba hossein Khosravi Faculty of Electrical Engineering Shahrood University of TechnologyShahroodSemnanP.O.Box ***Iran

Convolutional neural networks continually evolve to enhance accuracy in addressing various problems,leading to an increase in computational cost and model *** paper introduces a novel approach for pruning face recognition models based on convolutional neural *** proposed method identifies and removes inefficient filters based on the information volume in feature *** each layer,some feature maps lack useful information,and there exists a correlation between certain feature *** associated with these two types of feature maps impose additional computational costs on the *** eliminating filters related to these categories of feature maps,the reduction of both computational cost and model size can be *** approach employs a combination of correlation analysis and the summation of matrix elements within each feature map to detect and eliminate inefficient *** method was applied to two face recognition models utilizing the VGG16 and ResNet50V2 backbone *** the proposed approach,the number of filters removed in each layer varies,and the removal process is independent of the adjacent *** convolutional layers of both backbone models were initialized with pre-trained weights from *** training,the CASIA-WebFace dataset was utilized,and the Labeled Faces in the Wild(LFW)dataset was employed for benchmarking *** the VGG16-based face recognition model,a 0.74%accuracy improvement was achieved while reducing the number of convolution parameters by 26.85%and decreasing Floating-point operations per second(FLOPs)by 47.96%.For the face recognition model based on the ResNet50V2 architecture,the ArcFace method was *** removal of inactive filters in this model led to a slight decrease in accuracy by 0.11%.However,it resulted in enhanced training speed,a reduction of 59.38%in convolution parameters,and a 57.29%decrease in FLOPs.

关键词： Face recognition network pruning FLOPs reduction deep learning ArcFace

Investigating the Efficiency Coefficient of Pile Group in Clay Under Two-Way Lateral Load

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China Ocean Engineering 2023年第5期37卷 819-828页

作者： Kooshyar Fadayi ASIABSARY Navid HADIANI Amir hossein EGHBALI Seyed Mohammad Ali SADREDDINI Department of Civil Engineering Islamshahr BranchIslamic Azad UniversityIslamshahrIran

This research investigates the behavior of a 2×2 pile group under two-directional lateral loads in addition to the vertical *** three-dimensional numerical modeling based on Flac 3D software,the study examines the total bearing capacity and efficiency coefficient of the pile group,considering factors such as the angle of lateral load,relative pile spacing,and relative stiffness of the pile-soil *** findings highlight the significance of these factors in understanding and predicting the response of pile groups to changing lateral load *** results reveal that increasing the angle of the lateral load from 0°to 45°enhances both the maximum total lateral load and the efficiency coefficient of the pile *** the relative stiffness of the pile-soil system significantly increases,soil stiffening occurs and reducing the relative spacing of the piles from 7 to 3 times the diameter of the piles diminishes the influence of the pile ***,the response of the pile group to lateral loads becomes more linear,with only a slight alteration in the maximum total lateral load and the efficiency coefficient when the lateral load is angled from 0°to 45°.Conversely,increasing the relative distance between the piles,specifically from 3 to 7 times the diameter of the piles,amplifies the influence of the pile *** the maximum total lateral load and the efficiency coefficient of the pile group exhibit an observed *** provide insights for designing pile groups and optimizing their performance under lateral loading conditions.

关键词： pile group two-way lateral load load capacity efficiency coefficient Flac 3D

Microstructure and Corrosion Properties of CP-Ti Processed by Laser Powder Bed Fusion under Similar Energy Densities

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Acta Metallurgica Sinica(English Letters) 2022年第9期35卷 1453-1464页

作者： Mohammad hossein Mosallanejad Saber Sanaei Masoud Atapour Behzad Niroumand Luca Iuliano Abdollah Saboori Department of Materials Engineering Isfahan University of Technology84156-83111IsfahanIran Department of Applied Science and Technology Politecnico di TorinoCorso Duca Degli Abruzzi 2410129TorinoItaly Department of Management and Production Engineering Politecnico di TorinoCorso Duca Degli Abruzzi 2410129TorinoItaly

In this work, two types of CP Ti cubes with similar volumetric energy densities(VED) but diff erent process parameters were produced using laser powder bed fusion(LPBF) method. The corrosion behavior of the fabricated specimens was investigated by conducting electrochemical impedance spectroscopy(EIS) and polarization experiments in simulated body fl uid(SBF) solution at 37 °C. The results indicated that the microstructure and porosities, which are of great importance for biomedical applications, can be controlled by changing the process parameters even under constant energy densities. The sample produced with a lower laser power(E1) was featured with a higher level of porosity and thinner alpha laths, as compared with the sample fabricated with a higher laser power(E2). Moreover, results obtained from the bioactivity tests revealed that the sample produced with a higher laser power conferred a slight improvement in the bioactivity due to the higher amount of porosity. Lower laser power and hence higher porosity level promoted the formation of bone-like apatite on the surface of the printed specimens. The potentiodynamic polarization tests revealed inferior corrosion resistance for the fabricated sample with higher porosity. Moreover, the EIS results after diff erent immersion times indicated that a stable oxide film was formed on the surface of samples for all immersion times. After 1 and 3 days of immersion, superior passivation behavior was observed for the sample fabricated with lower laser power. However, very similar impedance and phase values were observed for all the samples after 14 days of immersion.

关键词： Additive manufacturing Laser powder bed fusion Energy density Corrosion Microstructure CP Titanium

Biostratigraphy,Microfacies,Sedimentary Environments and Sequence Stratigraphy of the Late Devonian-Carboniferous Deposits at the Anarak Section,Central Iran

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1038-1057页

作者： Elaheh SATTARI Ali BAHRAMI hossein VAZIRI-MOGHADDAM Azizollah TAHERI Iliana BONCHEVA Department of Geology Faculty of SciencesUniversity of IsfahanIsfahanIran Faculty of Earth Sciences Shahrood University of TechnologyShahroodIran Geological Institute Bulgarian Academy of Sciences113SofiaBulgaria

The Late Devonian-early Carboniferous deposits of the Anarak section in northeastern Isfahan,Central Iran,evaluated based on conodont biostratigraphy,sedimentary environment and sequence *** to the field observations,five lithological units were *** the conodont fauna of the Late Devonian-Carboniferous(Mississippian-Pennsylvanian)deposits of Bahram,Shishtu,and Qaleh(Sardar 1)formations in Anarak section led to the identification of 67 species of 18 conodont genera,and accordingly 22 conodont biozones were *** correlation of sea-level change curves,regarding to the conodont biofacies with the global sea-level curve,demonstrates the relative correlation in the mentioned times due to the shallow condition of the central Iran basin compared to the European and American *** microfacies analysis led to the identification of 12 microfacies related to the open sea,bioclastic barrier,lagoon and tidal flat sub-sedimentary environments in a homoclinal carbonate ramp *** on sequence stratigraphy studies,three 3rd order sequences were *** first sequence,which is of the Late Devonian(upper part of the Bahram Formation,32.5 m),the second sequence(12.5 m)is the Late Devonian(uppermost part of the Bahram Formation),and the third sequence(68 m)is the early Carboniferous(the Shishtu I Formation).

关键词： sequence stratigraphy conodont Devonian Carboniferous Anarak central Iran

A review of the mechanical integrity and electrochemical performance of flexible lithium-ion batteries

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Nano Research 2023年第12期16卷 12962-12982页

作者： Ahmad Shokrieh Amir hossein Mirzaei Lijuan Mao Mahmood M.Shokrieh Zhixiang Wei CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and TechnologyBeijing 100190China Composites Research Laboratory Center of Excellence in Experimental Solid Mechanics and DynamicsSchool of Mechanical EngineeringIran University of Science and TechnologyTehran 16846-13114Iran University of Chinese Academy of Sciences Beijing 100049China

In the past two decades,various research works have been conducted in the field of flexible electronic devices(FEDs).Researchers have focused their efforts on solving the existing challenges in the electronic,electrochemical,and mechanical behaviors of *** importance of flexible lithium-ion batteries(FLIBs)in the area of FEDs is evident;however,less attention has been paid to the mechanical behavior of FLIBs in comparison with the material and electrochemical *** present paper reviewed the research works in the FLIBs,focusing on their mechanical integrity and electrochemical ***,an introduction to FLIBs was presented,and the previous review papers published in this field were briefly ***,a detailed review of the available electrochemical and mechanical research works on FLIBs was ***,the mechanical testing methods(tensile,compressive,indentation,fatigue,and adhesion)for the characterization of FLIBs’components,the research works on the simulation and modeling of the mechanical behavior of FLIBs,and a summary of the present situation and the future trend of research in this field were reviewed and presented.

关键词： flexible devices electrochemical performance mechanical integrity testing methods simulation and modeling.

Effect of cOVID-19 pneumonia infection control protocols on nosocomial infection incidence in trauma patients

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中华创伤杂志:英文版 2023年第5期26卷 284-289页

作者： Mahsa Ahadi Amir hossein Shams Mahnaz Yadollahi Trauma Research Center Shahid Rajaee(Emtiaz)Trauma HospitalShiraz University of Medical SciencesShirazIran

Purpose:Nosocomial infection is a major threat to the health care system and patient *** the pandemic,new protocols were established in hospitals and communities to protect against the transmission of cOvID-19,which may have changed the incidence of nosocomial *** study was conducted to compare the incidence of nosocomial infection before and after the covID-19 ***:This was a retrospective cohort study performed on trauma patients who were admitted,from May 22,2018 to November 22,2021,to the largest level-1 trauma center in Shiraz,Iran(Shahid Rajaei Trauma Hospital).All the trauma patients over 15 years old admitted during the study time were included in this *** who were declared dead upon arrival were *** were evaluated in 2 periods:before the pandemic(May 22,2018-February 19,2020)and after the pandemic(February 19,2020-November 22,2021).Patients were assessed based on demographic information(age,gender,length of hospital stay,and patient outcome),the occurrence of hospital infection,and the type of *** analysis was done using SPSS version ***:Overall,60,561 patients were admitted,with a mean age of 40 *** infection was diagnosed in 4.00%(n=2423)of all admitted *** incidence rate of post-COVID-19 hospitalacquired infections decreased by 16.28%(p<0.001)when compared to before the pandemic;in contrast,surgical site infection(p<0.001)and urinary tract infection(p=0.043)were responsible for this change,while hospital-acquired pneumonia(p=0.568)and bloodstream infection(p=0.156)were not significantly *** mortality was 1.79%,while 28.52%of all patients with nosocomial infections *** the pandemic,there was a 25.78%increase(p<0.001)in the overall incidence rate of mortality,which was also observed among patients with nosocomial infections(17.84%).Conclusion:The incidence of nosocomial infection has decreased during the pandemic,possibly due to the

关键词： Injuries COVID-19 Crossinfection Incidence

Same-day delivery time-guarantee problem in online retail

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Communications in Transportation Research 2023年第1期3卷 161-175页

作者： hossein Fotouhi Elise Miller-Hooks Sid&Reva Dewberry Department of Civil Environmental and Infrastructure EngineeringGeorge Mason UniversityFairfaxVA22030USA

This study introduces the same-day delivery time-guarantee(SDDTG)problem for supporting online *** the SDDTG,orders are placed online and are processed and delivered from a depot to customer locations in the same *** problem seeks optimal delivery time guarantees to offer customers as they consider making purchases to increase purchase decision likelihood while accounting for delivery-related,supply-side costs that can affect *** guarantees are decision variables rather than parameters(as is typical)and are designed around anticipated customer satisfaction levels and purchase *** deadlines are not merely given to customers once they make their purchases,but rather the attractiveness of the offered delivery guarantees affects whether they make their purchases,i.e.,whether demand is *** problem is conceptualized as a multistage,stochastic,mixed-integer program in which uncertainties associated with customer reaction to delivery time guarantee offers and their arrival over time are *** a shrinking horizon over a fixed planning horizon,the multi-stage program is approximated by a series of two-stage programs.A parallelized progressive hedging solution methodology is proposed and insights from its application on a case *** problem recognizes tradeoffs between meeting promised delivery times and capturing the market.

关键词： e-commerce e-retail Same-day delivery Customer service and satisfaction e-order fulfillment

Does financial development moderate the link between technological innovation and environmental indicators?An advanced panel analysis

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Financial Innovation 2023年第1期9卷 2885-2903页

作者： hossein Ali Fakher Zahoor Ahmed Department of Business Management Ayandegan Institute of Higher EducationTonekabonIran Department of Business Admistration Faculty of EconomicsAdministrative and Social SciencesBahçeşehir Cyprus UniversityNicosiaTurkey Department of Economic&Data Sciences New Uzbekistan University54 Mustaqillik Ave.Tashkent 100007Uzbekistan

This study analyzes the role of financial development(FD)on the impact of technologi-cal innovation(TI)on six environmental quality indicators for the 25 economies that are part of the Organization for Economic Cooperation and Development for the period from 2000 to *** use a two-step dynamic generalized method of moments approach to understand this *** results show that FD augments the posi-tive effects of TI on four of the six environmental indicators,namely ecological foot-print,adjusted net savings,pressure on nature,and environmental ***,no significant effects on environmental sustainability and environmental vulnerability indices were *** considering all of the environmental quality indicators,TI appears to enhance environmental *** find evidence to support the existence of the environmental Kuznets curve in the context of each environmen-tal indicator and economic ***,FD and energy consumption appear to accelerate environmental *** on these results,FD should be viewed as an important parameter in designing policies for innovation to achieve the goal of net-zero carbon *** innovation and environmental quality nexus is *** moderating role of financial development is *** different environmental quality indicators are used for OECD *** development intensifies the environmental benefits of innovation.•The EKC hypothesis is confirmed for all six environmental indicators.

关键词： Technological innovation Financial development Two-step dynamic Sys-GMM estimator Environmental quality indicators Environmental sustainability

Antiviral Activity of Medicinal Plants against Human Coronavirus: a systematic scoping review of in vitro and in vivo experimentations

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Journal of Traditional Chinese Medicine 2022年第3期42卷 332-343页

作者： Parva Namiranian Omid Sadatpour Sadegh Azimzadeh Jamalkandi Mohammad hossein Ayati Mehrdad Karimi Department of Traditional Medicine School of Persian MedicineTehran University of Medical SciencesTehranIran Department of Immunology School of MedicineTehran University of Medical SciencesTehranIran Chemical Injuries Research Center Systems Biology and Poisonings InstituteBaqiyatallah University of Medical SciencesTehranIran

OBJECTIVE:To investigate the in vitro and in vivo studies of natural compounds and medicinal plants with anti-coronavirus ***:A systematic review was performed based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Animal Research:Reporting of in vivo experiments guidelines to find data for medicinal plants and natural products effective against human coronaviruses in in vitro or in vivo *** published up to September 6,2020 were ***(in vitro or in vivo)reporting the effect of medicinal plants and natural products or their derivatives on human coronavirus were included RESULTS:Promising anti-coronavirus effects are seen with different herbal compounds like some diterpenoids,sesquiterpenoids,and three compounds in tea with 3 CLpro inhibiting effect of Severe Acute Respiratory Syndrome Coronavirus(SARS-Co V);Hirsutenone,Six cinnamic amides and bavachinin are PLpro inhibitors and Tanshinones are active on both 3 CLpro and *** flavonoid compounds of Citrus fruits act on Immunoregulation and target angiotensin-converting enzyme 2 which is used by SARS-COV for *** helicase is possibly inhibited by two compounds myricetin and ***:This review shows that complementary medicine have the potential for new drug discovery against *** research is needed before definitive conclusions can be made concerning the safety and efficacy of the use of these medicinal plants.

关键词： Coronavirus medicine,Persian medicine,Chinese traditional plants,medicinal new drug discovery