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The Influence of the Constitution of Acrylate Copolymers on Electrochromic Properties of Their PAn Composite Coatings

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Journal of Wuhan University of Technology(Materials Science) 2001年第1期16卷 55-58页

作者：张超灿 Dept. of Polymer Mater. Sci./Eng. Wuhan Univ. of Tech. Wuhan 430070 China

Several polyacrylate matrixes were prepared with monomers such asmethyl methacrylate, KH- 570, acrylic acid and butyl acrylater, andthe electrochromic behavior of their soluble Pan composite coatingswas also studied by electrochemical analysis and *** shows that the constitution of the polymer matrixes have greateffects on the electrochromic process and the color change of thecomposite coatings.

关键词： polyaniline polyacrylate doping

Numerical Simulation of the Gas-solid Two-phase Flows in a Precalciner

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Journal of Wuhan University of Technology(Materials Science) 2006年第4期21卷 177-179页

作者：王家楣 School of Transportation Wuhan University of TechnologyWuhan 430063China

The gas-solid two-phase flous of the precalciner were simulated by different multiphase models,such as mixture model,the Enderium model,including mixture and dispersed,and discrete phase model（DPM）,The results of the different multiphase models were analyzed and *** the rationality of the diffusion and mixture of the cenment raic meals and coal poroder some extent Moreover,the results also shose the rationality of the given inlets parameters of actual process of the precalciner.

关键词： preculciner gas-solid two-phase flow mumerical simulation

PEGylated PLGA Nanoparticles as Tumor Ecrosis Factor-α Receptor Blocking Peptide Carriers:Preparation,Characterization and Release in vitro

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Journal of Wuhan University of Technology(Materials Science) 2007年第1期22卷 112-116页

作者：刘卫杨祥良 College of Life Science and Technology Huazhong University of Science and Technology

To assess the merits of PEGylated poly （lactic-co-glycolic acid）（PEG-PLGA） nanoparticles as drug carriers for tumor necrosis factor-α receptor blocking peptide （TNFR-BP）, PEG-PLGA copolymer, which could be used to prepare the stealth nanoparticles, was synthesized with methoxypolyethyleneglycol, DL-lactide and glycolide. The structure of PEG-PLGA was confirmed with ^1H-NMR and FT-IR spectroscopy, and the molecular weight （MW） was determined by gel permeation chromatography. Fluorescent FITC-TNFR- BP was chosen as model protein and encapsulated within PEG-PLGA nanoparticles using the double emulsion method. Atomic force microscopy and photon correlation spectroscopy were employed to characterize the stealth nanoparticles fabricated for morphology, size with polydispersity index and zeta potential. Encapsulation efficiency （EE） and the release of FITC-TNFR-BP in nanopartieles in vitro were measured by the fluorescence measurement. The stealth nanoparticles were found to have the mean diameter less than 270 nm and zeta potential less than -20 mV. In all nanoparticle formulations, more than 45% of EE were obtained. FITC-TNFR-BP release from the PEG-PLGA nanoparticles exhibited a biphasic pattern, initial burst release and consequently sustained release. The experimental results show that PEG-PLGA nanoparticles possess the potential to develop as drug carriers for controlled release applications of TNFR-BP.

关键词： tumor necrosis factor-α receptor blocking peptide PEG-PLGA stealth nanoparticles ring-opening polymerization controlled and sustained drug release

Kinetics of Internal Oxidation of Cu-Al Alloy Plate

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Journal of Wuhan University of Technology(Materials Science) 2005年第1期20卷 13-16页

作者：宋克兴 School of Materials Science and Engineering Xi'an Jiaotong UniversityXi'an 710049China School of Materials Science and Engineering Henan University of Science and T echnologyLuoyang 471003China

The kinetics of internal oxidation of dilut e Cu-Al alloys, containing up to 2.214% molar fraction Al, was investigated over the temperature range of 1023K to 1273K, and the depth of internal oxidation was measured by microscopies. A modified rate equation was derived to describe the kinetics of internal oxidation of Cu-Al alloy *** on the derived equati on, the permeability of oxygen in solid copper was obtained from the internal ox idation measurements. The experimental results show that the depth of the intern al oxidation is a parabolic function of time, there is no evidence for preferent ial diffusion along grain boundaries and an outer layer of pure copper was forme d on the external surface of samples.

关键词： internal oxidation kinetics Cu-Al alloys dif fusion plate

Influence of MgO-type Expansive Agent Hydration Behaviors on Expansive Properties of Concrete

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Journal of Wuhan University of Technology(Materials Science) 2011年第2期26卷 345-347页

作者：卢小琳 College of Materials Science and Technology Nanjing University of Aeronautics & Astronautics

The hydration behaviors and expansive properties of MgO-type expansive agent curing at different temperatures and environment were *** the curing temperatures changed from 25℃ to 50℃,the conductivities of MgO samples increased from 40 to 80 μs/cm,and the hydrations of MgO were quickened up *** SEM observation,the hydration product of MgO cured at 50℃ for 28 day was about 2-3μm in *** expansion of pastes with 5% of the MgO-type expansive agent was from 0.36% to 1.01% when the curing temperature changed from 25oC to 50℃.When 8% of the MgO-type expansive agent was added,the early shrinkage of concrete was *** expansion ratio increased with the curing temperature,and the expansive cracking of concrete with MgO-type expansive agent might be decreased by blending fly ash.

关键词： concrete expansive agent expansion hydration conductivity

Preparation of Diphenylcarbazide-Directed Cd Se Quantum Dots and Selective Determination for Cr(Ⅵ)

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Journal of Wuhan University of Technology(Materials Science) 2016年第5期31卷 972-976页

作者：石岩 SUN Ken School of Environmental and Municipal Engineering North China University of Water Resources and Electric Power Zhengzhou 450045China Farmland Irrigation Research Institute CAAS Xinxiang 453002 China

Cd Se quantum dots（QDs） were synthesized using diphenylcarbazide（DL） to sequester QDs precursors（Cd^（2＋）） in situ. Fluorescence（FL） analysis showed the successive synthesis of QDs could be realized by capping with DL and the binding between DL and Cd^（2＋）. The average QDs particle size was about 5-20 nm by high-resolution transmission electron microscopy（HRTEM）. Fourier transform infrared（FT-IR） spectra showed that Cd Se QDs could be chemically bonded with DL. The formation of QDs-DL-Cr（Ⅵ） could lower the fluorescence intensity of QDs. In a certain concentration range, the fluorescence intensity and Cr（Ⅵ） concentration presented a linear relationship. As a result, this phenomenon could be used to determine the Cr（Ⅵ） concentration in the range of 0-24 ×10^（-6） mol· L^（-1）.

关键词： Cr(Ⅵ) CdSe quantum dots fluorescence linear relationship

Fabrication of Fe-6.5wt%Si Bulk by Spark Plasma Sintering

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Journal of Wuhan University of Technology(Materials Science) 2005年第1期20卷 72-74页

作者：胡长征张东明 State Key Laboratory of Advanced Technology for Materials Synthesis and Process ing Wuhan University of TechnologyWuhan 430070China

Fe-6.5wt%Si composite compact was fabricated by spark plasma sintering(SPS).Mec hanical alloying(MA)was used to prepare Fe-Si composite *** composite p owders were sintered by SPS at elevsated temperature from 500℃ to 700℃.The exp erimental results indicate that the non-equilibrium state of composite Fe-Si i s preserved in the *** density of the bulk rises with the increasing tem perature and there is no diffusion of silicon and iron in the interface.

关键词： Fe-6.5wt%Si spark plasma sintering mechanical alloying non-equilibrium

Deep learning-based method for detecting anomalies in electromagnetic environment situation

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Defence Technology（防务技术） 2023年第8期26卷 231-241页

作者： Wei-lin Hu Lun-wen Wang Chuang Peng Ran-gang Zhu Meng-bo Zhang College of Electronic Engineering National University of Defense TechnologyHefei230001China

The anomaly detection of electromagnetic environment situation(EMES) has essential reference value for electromagnetic equipment behavior cognition and battlefield threat *** this paper,we proposed a deep learning-based method for detecting anomalies in EMES to address the problem of relatively low efficiency of electromagnetic environment situation anomaly detection(EMES-AD).Firstly,the convolutional kernel extracts the static features of different regions of the ***,the dynamic features of the region are obtained by using a recurrent neural network(LSTM).Thirdly,the Spatio-temporal features of the region are recovered by using a de-convolutional network and then fused to predict the *** structural similarity algorithm(SSIM) is used to determine whether it is *** developed the detection framework,de-signed the network parameters,simulated the data sets containing different anomalous types of EMES,and carried out the detection *** experimental results show that the proposed method is effective.

关键词： Electromagnetic environment situation(EMES) Anomaly detection(AD) Regional features integration LSTM CNN

Properties and Mechanism of Mine Tailings Solidified and Filled with Fluorgypsum-based Binder Material

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Journal of Wuhan University of Technology(Materials Science) 2012年第3期27卷 465-470页

作者：黄绪泉周旻 Department of Resource and Environmental Science Wuhan University

The properties and microscopic structure of tailings solidification bodies, the hardening mechanism of the fluorgypsum-based binder material （FBBM） and tailings solidification mechanism were investigated. FBBM consisted of 40% fluorgypsum,25%-50% blast furnace slag,10%-35% ordinary Portland cement clinker（OPCC） and 1% activator, which was good material in binding iron ore *** analysis showed that the properties of tailings solidification bodies was related to its ettringite *** and XRD analyses of tailings solidification bodies showed that the chemical reaction was produced between FBBM and tailings in the whole hydration process. The hydration of the resulting gel material covered the surface of the tailings particles and formed a gel structure. A large number of ettringite crystals and the remaining board-like gypsum crystals took each end and constituted the structural skeleton. The filamentous network-like calcium-silicate-hydrate（C-S-H） gel bonded firmly together with ettringite crystals, dehydrated gypsum crystals and granular tailings, and formed an extremely dense whole.

关键词： fluorgypsum tailings solidification body blast furnace slag toxicity ettringite