检索结果-南通市图书馆

Fusion of color and hallucinated depth features for enhanced multimodal deep learning-based damage segmentation

在线全文

学校读者我要写书评

暂无评论

Earthquake Engineering and Engineering Vibration 2023年第1期22卷 55-68页

作者： Tarutal Ghosh Mondal mohammad reza Jahanshahi Civil Architectural and Environmental EngineeringMissouri University of Science and TechnologyRollaMOUSA Lyles School of Civil Engineering Purdue UniversityWest LafayetteINUSA School of Electrical and Computer Engineering Purdue UniversityWest LafayetteINUSA

Recent advances in computer vision and deep learning have shown that the fusion of depth information can significantly enhance the performance of RGB-based damage detection and segmentation ***,alongside the advantages,depth-sensing also presents many practical *** instance,the depth sensors impose an additional payload burden on the robotic inspection platforms limiting the operation time and increasing the inspection ***,some lidar-based depth sensors have poor outdoor performance due to sunlight contamination during the *** this context,this study investigates the feasibility of abolishing depth-sensing at test time without compromising the segmentation *** autonomous damage segmentation framework is developed,based on recent advancements in vision-based multi-modal sensing such as modality hallucination(MH)and monocular depth estimation(MDE),which require depth data only during the model *** the time of deployment,depth data becomes expendable as it can be simulated from the corresponding RGB *** makes it possible to reap the benefits of depth fusion without any depth perception per *** study explored two different depth encoding techniques and three different fusion strategies in addition to a baseline RGB-based *** proposed approach is validated on computer-generated RGB-D data of reinforced concrete buildings subjected to seismic *** was observed that the surrogate techniques can increase the segmentation IoU by up to 20.1%with a negligible increase in the computation ***,this study is believed to make a positive contribution to enhancing the resilience of critical civil infrastructure.

关键词： multimodal data fusion depth sensing vision-based inspection UAV-assisted inspection damage segmentation post-disaster reconnaissance modality hallucination monocular depth estimation

Detection mechanism and classification of design principles of peroxidase mimic based colorimetric sensors: A brief overview

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2020年第6期28卷 1492-1503页

作者： Ali reza Hormozi Jangi mohammad reza Hormozi Jangi Saeed reza Hormozi Jangi Department of Chemistry College of SciencesShiraz UniversityShiraz 71454Iran

Synthesis and characterization of enzyme mimics with characteristic stability and high catalytic efficiency is an interesting field for ***,with the development of nanoscience and introducing of Fe3O4 magnetic nanoparticles as peroxidase mimics in 2007,various nanomaterials such as noble metals,metal oxides,and carbon materials were introduced as enzyme mimics(nanozymes).Various nanomaterials exhibit peroxidaselike activity,hence,most of the nanozymes are peroxidase *** the nanozyme based sensors were previously classified,the classifications have been focused on the type of nanozyme ***,the nanozyme based sensors were classified as peroxidase,hydrolase,and urease mimic-based ***,heretofore,these sensors are not classified based on the detection mechanism and principles of system *** aim of this review is the focus on the peroxidase mimic based colorimetric sensors as the most common nanozyme-based sensors and their classification based on principles of sensor design and review of the detection mechanism of the current mimic peroxidase based ***,some current challenges and future developments in this field are discussed.

关键词： Peroxidase mimic Nanozyme Enzyme-peroxidase mimic hybrids HP sensing pH sensing Enzyme co-embedded nanomaterials

Impact of Industrial Agglomeration on Productivity: Evidence from Iran’s Food Industry

在线全文

学校读者我要写书评

暂无评论

Chinese Geographical Science 2020年第2期30卷 309-323页

作者： Nastaran NAJKAR mohammad reza KOHANSAL mohammad GHORBANI Department of Agricultural Economics International Campus of Ferdowsi University of MashhadMashhad ***Iran Department of Agricultural Economics Ferdowsi University of MashhadMashhad ***Iran

This paper aims to examine the effect of agglomeration on firm level productivity in Iran’s food manufacturing by employing a firm level dataset during 1986–2015 among firms for four *** empirical results show that agglomeration in north districts are key factors in productivity *** this work,we apply a spatial Bayes model that uses hierarchical techniques during the three *** productivity clustering map is able to capture such patterns as the high productivity area that appears in the south,north districts of *** paper evaluates the effect of agglomeration on firm productivity in Iran’s food industries at district *** find that regional market potential is the strong predictor of productivity;moreover,industrial agglomeration has a productivity-augmenting impact.

关键词： Agglomeration productivity spatial Bayes hierarchical Iran

CHARACTEIZATIONS OF WOVENT g-FRAMES AND WEAVING g-FRAMES IN HILBERT SPACESS AND C^(*)-MODULES

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2023年第6期43卷 2471-2482页

作者： Amir KHOSRAVI mohammad reza FARMANI Faculty of Mathematical Sciences and Computer Kharazmi University599 Taleghani Ave.Tehran 15618Iran

In this paper,using Parseval frames we generalize Sun’s results to g-frames in Hilbert C^(*)-***,for g-frames in Hilbert spaces,we present some characterizations in terms of a family of frames,not only for orthonormal ***,we have a note about a comment and a relation in the proof of Proposition 5.3 in[*** et al.,On weaving g-frames for Hilbert spaces,Complex Analysis and Operator Theory,2020].Finally,we have some results for g-Riesz bases,woven and P-woven g-frames.

关键词： g-frame fusion frame woven frame Riesz basis g-Riesz basis

New approach to solving master equations of density operator for the Jaynes Cummings model with cavity damping

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2014年第9期23卷 65-70页

作者： Seyed Mahmoud Ashrafi mohammad reza Bazrafkan Physics Department Faculty of ScienceI.K.I.University

By introducing thermo-entangled state representation Ⅰη〉, which can map master equations of density operator in quantum statistics as state-vector evolution equations, and using ＂dissipative interaction picture＂ we solve the master equation of Jaynes-Cummings model with cavity damping. In addition we derive the Wigner function for density operator when the atom is initially in the up state Ⅰ↑〉 and the cavity mode is in coherent state.

关键词： Jaynes-Cummings model entangled state representation master equations

Photocatalytic degradation of the acetaminophen by nanocrystal-engineered TiO_(2)thin film in batch and continuous system

在线全文

学校读者我要写书评

暂无评论

Frontiers of Environmental Science & Engineering 2021年第2期15卷 15-18页

作者： reza Katal mohammad Tanhaei Jiangyong Hu Department of Civil&Environmental Engineering National University of SingaporeSingapore 117576Singapore Institute of Materials Research and Engineering Agency for ScienceTechnologyand ResearchSingapore 138634Singapore

Un-biodegradable pharmaceuticals are one of the major growing threats in the *** the current study,TiO_(2)thin film photocatalysts were designed by nanocrystal engineering and fabricated for degradation of the acetaminophen(ACE)in a photocatalytic reaction under UV light irradiation in batch and continuous *** photocatalyst was prepared by sputtering and then engineered by thermal treatment(annealing at 300℃(T300)and 650℃(T650)).The annealing effects on the crystallinity and photocatalytic activity of the TiO_(2)film were completely studied;it was found that annealing at higher temperatures increases the surface roughness and grain size which are favorable for photocatalytic activity due to the reduction in the recombination rate of photo-generated electron-hole *** the continuous system,a flat plate reactor(FPR)was designed and *** photocatalytic performance was decreased with the increase of flow rate because the higher flow rate caused to form the thicker film of the liquid in the reactor and reduced the UV light received by *** reusability and durability of the samples after 6 h of photocatalytic reaction showed promising performance for the T650 sample(annealed samples in higher temperatures).

关键词： Acetaminophen TiO2 Thin film Batch Continuous

Precipitation of hematite nanoparticles via reverse microemulsion process

在线全文

学校读者我要写书评

暂无评论

Journal of Natural Gas Chemistry 2011年第6期20卷 687-692页

作者： mohammad reza Housaindokht Ali Nakhaei Pour Bimolecular Research Center Department of ChemistryFerdowsi University of MashhadP.O.Box:91775-1436MashhadIran

Hematite nanoparticles have been successfully synthesized via two processing routes：（i） conventional precipitation route and （ii） reverse microemulsion *** particle precipitation was carried out in a semibatch reactor.A microemulsion system consisting of water,chloroform,1-butanol and surfactant was loaded with iron nitrates to form iron nanoparticles *** precipitation was performed in the single-phase microemulsion operating *** technical surfactants,with different structure and HLB value are *** influence of surfactant characterization on the size of produced iron oxide particle has been studied to gain a deeper understanding of the important controlling mechanisms in the formation of nanoparticles in a *** electron microscopy （TEM）,surface area,pore volume,average pore diameter,pore size distribution and XRD were used to analyze the size,size distribution,shape and structure of precipitated iron nanoparticles.

关键词： iron nanoparticles microemulsion hematite

Sublethal effects of imidacloprid and pymetrozine on population growth parameters of cabbage aphid, Brevicoryne brassicae on rapeseed, Brassica napus L.

在线全文

学校读者我要写书评

暂无评论

Insect Science 2007年第3期14卷 207-212页

作者： mohammad reza LASHKARI AHAD SAHRAGARD mohammad GHADAMYARI Department of Plant Protection College of Agriculture Guilan University Rasht Iran

Efficiency of imidacloprid and pymetrozine on population growth parameters of cabbage aphid, Brevicoryne brassicae L. （Homoptera： Aphididae） was determined using demographic toxicology by leaf dip method. At first, bioassay tests were performed. The LC50 value and confidence limit for imidacloprid and pymetrozine were 1.61 × 10^-5 mol/L （0.74 × 10^-5-2.66 × 10^-5） and 2.14 × 10^-4 mol/L （1.24 × 10^-4-3.40 × 10^-4）, respectively. To evaluate the sublethal effect of two insecticides on population growth parameters of cabbage aphid, LC30 concentrations of imidacloprid and pymetrozine were used at 5 mol/L and 30 mol/L. The experiments were carried out in a incubator at 20±1℃, 60% ± 5% RH and 16：8 （L：D） photoperiod on canola seedlings, Brassica napus L. var. ＇PF＇. Net fecundity rate decreased in both insecticide-treated populations. Intrinsic rates of increase （rm） were lower in imidacloprid and pymetrozine treatments than in controls. Intrinsic birth rates also decreased in treated populations. There was a relative increase in intrinsic death rates of treated populations. The mean generation times and doubling time were also lower in populations treated with insecticides than in controls. There was a considerable reduction in the average numbers of nymphs reproduced per female as compared with the control. The average longevity of female adults in the control was significantly different from those treated with imidacloprid and pymetrozine. However, there was no significant differences in aphid life-table parameters between the two insecticide-treated populations （P 〉 0.01）.

关键词： Brevicoryne brassicae canola imidacloprid life table pymetrozine

Strengthening of reinforced concrete beams using fiberreinforced cementitious matrix systems fabricated with custom-designed mortar and fabrics

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2023年第7期17卷 1100-1116页

作者： Ahmadreza RAMEZANI mohammad reza ESFAHANI Javad SABZI Faculty of Engineering Ferdowsi University of MashhadMashhadIran

The performance of a new fiber-reinforced cementitious matrix(FRCM)system developed using custom-designed mortar and fabrics is investigated in this *** behavior of this system is evaluated in terms of both the flexural and shear strengthening of reinforced concrete *** beams are designed to assess the effectiveness of the FRCM system in terms of flexural strengthening,and four specimens are designed to investigate their shear *** parameters investigated for flexural strengthening are the number of layers,span/depth ratio,and the strengthening *** previous studies,custom fabrics with similar axial stiffness are used in all strengthening methods in this *** the shear-strengthened specimens,the effects of the span/depth ratio and strengthening system type(fiberreinforced polymer(FRP)or FRCM)are *** proposed FRCM system exhibits desirable flexural and shear strengthening for enhancing the load capacity,provides sufficient bonding with the substrate,and prevents premature failure *** the similar axial stiffness of fabrics used in both FRCM and FRP systems and the higher load capacity of specimens strengthened by the former,cement-based mortar performs better than epoxy.

关键词： fiber-reinforced cementitious matrix flexural strengthening shear strengthening carbon fiber-reinforced polymer shear span