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Experimental and Numerical Analyses of the Dynamic Mechanical Properties of Hull Plate-Frame Structures Under Drop Weight Impacted Load

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China Ocean engineering 2025年第1期39卷 27-42页

作者： ZONG Shuai LIU Kun LU Yue HUANG Tian-bo LIU He-wei QIU Wei-jian School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China School of Naval Architecture and Ocean Engineering Huazhong University of Science and TechnologyWuhan 430074China

Experimental studies were conducted on two high-strength steel plate-frame structures with different truss spacings under various impact velocities to investigate the dynamic mechanical properties of hull plate-frame structures under drop weight *** results showed that decreasing the main beam spacing can effectively increase the structural stiffness,reduce the maximum deformation,and increase the damage ***,to simulate the impact tests accurately,static and dynamic tensile tests at different strain rates were carried out,and the Cowper-Symonds model parameters were fitted via experimental *** material properties obtained from the tensile tests were used as inputs for numerical simulations with the numerical results coincide with the experimental results.A systematic analysis and discussion were conducted on the effects of truss spacing and truss width on the dynamic response of the reinforced plates,and an optimal range for the ratio of truss spacing to truss width was *** addition,a mesh size sensitivity analysis for ship hull plate frame collision simulations was *** applicability of the EPS,MMC,and RTCL failure criteria in the simulation of plate-frame structures was investigated via finite element simulations of falling weight impact *** research findings provide a reference for ship hull structure design and resilience assessment.

关键词： ship collision hull plate-frame structure dynamic mechanical property collision model test numerical simulation

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Heteroatoms doped iron oxide-based catalyst prepared from zinc slag for efficient selective catalytic reduction of NO_(x) with NH_(3)

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International Journal of Coal Science & technology 2024年第1期11卷 180-193页

作者： Jiale Liang Yaojun Zhang Hao Chen Licai Liu Panyang He Lei Wu College of Materials Science and Engineering Xi’an University of Architecture and TechnologyXi’an710055China School of Chemistry and Chemical Engineering Xi’an University of Architecture and TechnologyXi’an710055China School of Resources Engineering Xi’an University of Architecture and TechnologyXi’an710055China

Excessive emissions of nitrogen oxides from flue gas have imposed various detrimental impacts on environment,and the development of deNO_(x) catalysts with low-cost and high performance is an urgent *** oxide-based material has been explored for promising deNO_(x) ***,the unsatisfactory low-temperature activity limits their practical *** this study,a series of excellent low-temperature denitrification catalysts(Ha-FeO_(x)/yZS)were prepared by acid treatment of zinc slag,and the mass ratios of Fe to impure ions was regulated by adjusting the acid ***-FeO_(x)/yZS showed high denitrification performance(>90%)in the range of 180–300℃,and the optimal NO conversion and N2 selectivity were higher than 95%at 250℃.Among them,the Ha-FeO_(x)/2ZS synthesized with 2 mol/L HNO3 exhibited the widest temperature window(175–350℃).The excellent denitrification performance of Ha-FeO_(x)/yZS was mainly attributed to the strong interaction between Fe and impurity ions to inhibit the growth of crystals,making Ha-FeO_(x)/yZS with amorphous structure,nice fine particles,large specific surface area,more surface acid sites and high chemisorbed *** in-situ DRIFT experiments confirmed that the SCR reaction on the Ha-FeO_(x)/yZS followed both Langmuir-Hinshelwood(L-H)mechanism and Eley-Rideal(E-R)*** present work proposed a high value-added method for the preparation of cost-effective catalysts from zinc slag,which showed a promising application prospect in NO_(x) removal by selective catalytic reduction with ammonia.

关键词： Flue gas NO_(x)removal Zinc slag-derived catalyst NH_(3)-SCR Catalysis activity

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A new ecological underground group tank with inner steel plate lining for edible oil:Full-scale test and numerical simulation

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Frontiers of Structural and Civil engineering 2025年第2期19卷 224-241页

作者： Hao ZHANG Yiming LIAN Qikeng XU Jun LI Zhenhua XU School of Civil Engineering and Architecture Henan University of TechnologyZhengzhou 450001China

Underground group tanks(UGTs)for edible oil offer benefits in land conservation,ecological sustainability,and oil quality ***,ensuring their structural integrity is a critical *** study investigates the mechanical behavior and stability of tank walls with inner steel plate lining in the empty tank,employing both full-scale tests and numerical *** such as internal forces,circumferential deformation,and wall stability under earth pressure were comprehensively *** reveal that the circumferential internal forces in walls proximal to the junction are more influenced by the junction and adjacent tank walls than those in walls located further *** numerical results deviate by only 7.7%and 13.3%from the experimental results,verifying the efficacy and accuracy of the numerical model ***,it was determined that for tank walls with heights below 5 m,the internal force can be computed using retaining wall force calculations;for greater heights,arch action force calculations are more *** on stability analysis,a formula for assessing the stability of double-layer,heterogeneous material group tank walls under earth pressure is *** is advised that the thickness of the concrete tank wall should exceed 150 mm to ensure structural *** findings offer valuable insights into the rational design of UGTs.

关键词： underground group tanks full-scale test numerical simulation mechanical properties stability

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Effect of Size Change on Mechanical Properties of Monolayer Arsenene

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Journal of Wuhan University of technology(Materials Science) 2024年第1期39卷 206-212页

作者：郭娟刘贵立孙震宇 School of Architecture and Civil Engineering Shenyang University of TechnologyShenyang 110870China

The Young's modulus, shear modulus and Poisson's ratio of monolayer arsenene with different sizes were calculated by finite element method, so as to explore the influence of dimension and orientation on the mechanical properties of monolayer arsenene. The calculation results show that the small size has a significant effect on the mechanical properties of the monolayer arsenene. The smaller the size, the larger the Young's modulus and Poisson's ratio of the monolayer arsenene. The size change has a great influence on the Young's modulus of the arsenene handrail direction, and the Young's modulus of the zigzag direction is not sensitive to the size change. Similarly, the size change has a significant effect on the shear modulus of arsenene in the handrail direction, while the shear modulus in the zigzag direction has no significant effect on its size change. For the Poisson's ratio, the situation is just the opposite, and the effect of the size change on the Poisson's ratio of the arsenene zigzag direction is greater than that of the handrail direction.

关键词： finite element method arsenene size change mechanical properties

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Effect of solidification path and volume shrinkage on cracking susceptibility at different cooling rates

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Journal of Iron and Steel Research International 2025年第2期32卷 418-425页

作者： Wei-an Wang Yong-kun Yang Guo-xing Qiu Jian-li Wang Guo-hua Wang Xiao-ming Li School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina

Understanding the solidification characteristics and microsegregation under varying cooling rates is essential to comprehend the formation of center cracks in large section round billets.P91 high-alloy steel was taken as the research *** peritectic solidification process,steel solidification shrinkage and microsegregation of solute elements at different cooling rates were studied and revealed by high-temperature confocal scanning laser microscopy,Thermo-Calc thermodynamic software,hybrid laser microscopy and electron probe *** results showed that as the cooling rate increased from 10 to 100℃/min,the percentage ofδ-Fe involved in peritectic reaction decreased from 98.6%to 36.4%,the surface roughness of the sample decreased from 8.59 to 5.14μm,and the volume shrinkage decreased from 5.92%to 2.18%.Moreover,the solidification path enters the crack sensitivity area at lower cooling rates(10 and 50℃/min),while the solidification path is far from the crack susceptibility area at higher cooling rate(100℃/min).With the increase in cooling rate,the segregation deviation parameters of the elements V,C,Mo and Cr were decreased by 9.52%,22.2%,29.4%and 70.5%,*** path changed and microsegregation weakened by adjusting cooling mode might be a way to improve central crack.

关键词： In situ observation P91 high-alloy steel Central crack Large section continuous casting round billet Surface roughness Peritectic solidification

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Microstructures and Properties of Honeycomb Sulfur/carbon Black/MoS_(2) Composites

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Journal of Wuhan University of technology(Materials Science) 2024年第5期39卷 1073-1078页

作者： CUI Chunjuan LIU Yue ZHAO Yanan LIU Yanyun WANG Yan WEI Jian HU Ping School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi'an 710055China Shaanxi Metallurgical Engineering Technology Research Center Xi’an 710055China School of Materials Science and Engineering Xi’an University of Architecture and TechnologyXi’an 710055China

Microstructure and property of sulfur/carbon black composites prepared by ball milling were ***/carbon black composites were obtained by melting the mixture of sulfur and carbon black in 155℃and dispersing evenly in carbon black after hydrothermal ***,its conductive properties were ***,microstructure and property of honeycomb sulfur/carbon black/MoS_(2) prepared by hydrothermal method as a cathode material for lithium-sulfur batteries were *** initial discharge specific capacity of the material at 0.2 A/g current density is 838.495 mA·h/g,and the 55.14%after 100 weeks of *** is indicated that MoS_(2) can not only combine with polysulfides through electrostatic action or the action of chemical bonds,but also honeycomb porous ***_(2) can fix polysulfides groups and prevent their ***,the cycling performance of the battery is effectively improved.

关键词： lithium-sulfur battery honeycomb MoS_(2) charge/discharge performance

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Effect of TiO_(2) and BaO on viscosity and potassium removal capacity of blast furnace slag

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Journal of Iron and Steel Research International 2024年第11期31卷 2675-2683页

作者： Jian-tao Ju Xin-yi Li Liu-le Wei Xiang-dong Xing School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710055ShaanxiChina Research Center of Metallurgical Engineering and Technology of Xi’an University of Architecture and Technology Xi’an710055ShaanxiChina

In order to increase the utilization rate of vanadium–titanium magnetite in blast furnace smelting,the viscosity and potassium removal capacity of CaO–SiO_(2)–Al_(2)O_(3)–MgO–BaO–TiO_(2) slag(CaO/SiO_(2)=1.05,1–5 wt.%BaO,2–20 wt.%TiO_(2))were studied for slag optimization using the cylinder method and slag–metal equilibrium technique,***,the structural properties of the slag were characterized by Fourier transform infrared *** concept of“a ring structure of Ti–O–Si”was proposed to express the change in the viscosity of the blast furnace *** results showed that the viscosity of slag increased with the increase in BaO content while the potassium removal capacity ***,an increase in TiO_(2) content from 2 to 20 wt.%resulted in a decrease in viscosity and an increase in potassium removal *** Fourier transform infrared spectroscopy results showed that the charge compensation of Ba2+can form complex aluminosilicate structure and increase the viscosity of ***,with the increase in TiO_(2) content,Ti4+ions replace Si4+in the silicon-oxygen tetrahedral structure,thereby reducing the degree of polymerization of the silicate network and decreasing the viscosity.

关键词： Blast furnace slag Viscosity Structure Potassium removal capacity BaO TiO_(2)

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Resource utilization of drinking water treatment aluminum sludge in green cementing materials: Hydration characteristics and hydration kinetics

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Journal of Environmental Sciences 2024年第10期144卷 236-248页

作者： Jing Yang Cheng Chen Shuoyu Chen Yujie Ren Jinsuo Lu School of Environmental and Municipal Engineering Xi’an University of Architecture and TechnologyXi’an 710055China

As a byproduct of water treatment,drinking water treatment aluminum sludge(DWTAS)has challenges related to imperfect treatment and disposal,which has caused potential harm to human health and the *** this paper,heat treatment DWTAS as a supplement cementitious material was used to prepare a green cementing *** results show that the 800℃ is considered as the optimum heat treatment temperature for ***-800℃ is fully activated after thermal decomposition to form incompletely crystallized highly activeγ-Al_(2)O_(3) and active SiO_(2).The addition of DWTAS promoted the formation of ettringite and C-(A)-S-H gel,which could make up for the low early compressive strength of cementing materials to a certain *** cured for 90 days,the compressive strength of the mortar with 30% DWTAS-800℃ reached 44.86 *** dynamic process was well simulated by Krstulovi′c-Dabi′c hydration kinetics *** study provided a methodology for the fabrication of environmentally friendly and cost-effective compound cementitiousmaterials and proposed a“waste-to-resource”strategy for the sustainable management of typical solid wastes.

关键词： Drinking water treatment aluminum sludge Green cementing material Hydration characteristics Hydration kinetics

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Study on the mechanism and reaction characteristics of metal-supported phosphogypsum as oxygen carrier in a chemical looping gasification application

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Journal of Environmental Sciences 2024年第4期138卷 428-438页

作者： Jing Yang Yujie Ren Shuoyu Chen Jinsuo Lu School of Environmental and Municipal Engineering Xi’an University of Architecture and TechnologyXi’an 710055China

This study aimed to explore the chemical looping gasification(CLG)reaction characteristics of the metal-supported composite phosphogypsum(PG)oxygen carriers(OCs)and the thermodynamic *** FactSage 7.1 thermodynamic simulation was used to explore the oxygen release and H_(2)S removal *** experimental results showed that the syngas yield of CLG with PG-CuFe_(2)O_(4)was more than that with PG-Fe_(2)O_(3)20/CuO40 or PG-Fe_(2)O_(3)30/CuO30 OC at 1023 K when the water vapor content was ***,the maximum syngas yield of the CO selectivity was 70.3% and of the CO_(2)selectivity was 23.8%.The H_(2)/CO value was 0.78,and the highest carbon conversion efficiency was 91.9% in PG-CuFe_(2)O_(4)at the gasification temperature of 1073 *** metal-supported PG composite oxygen carrier was proved not only as an oxygen carrier to participate in the preparation of syngas but also as a catalyst to catalyze coal gasification ***,both the experimental results and FactSage 7.1 thermodynamic analysis revealed that the trapping mechanism of H_(2)S by composite OCs was as follows:CuO first lost lattice oxygen as an oxygen carrier to generate Cu_(2)O,which,in turn,reacted with H_(2)S to generate Cu_(2)*** study provided efficient guidance and reference for OC design in CLG.

关键词： Metal-supported composite phosphogypsum Reaction characteristics Thermodynamic mechanism Chemical looping gasification

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Identification of working conditions and prediction of FeO content in sintering process of iron ore fines

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Journal of Iron and Steel Research International 2024年第9期31卷 2090-2100页

作者： Xiao-ming Li Bao-rong Wang Zhi-heng Yu Xiang-dong Xing School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710055ShaanxiChina

The iron oxide(FeO)content had a significant impact on both the metallurgical properties of sintered ores and the economic indicators of the sintering *** predicting FeO content possessed substantial potential for enhancing the quality of sintered ore and optimizing the sintering process.A multi-model integrated prediction framework for FeO content during the iron ore sintering process was *** applying the affinity propagation clustering algorithm,different working conditions were efficiently classified and the support vector machine algorithm was utilized to identify these *** of several models under different working conditions was carried *** regression prediction model characterized by high precision and robust stability was *** model was integrated into the comprehensive multi-model *** precision,reliability and credibility of the model were validated through actual production data,yielding an impressive accuracy of 94.57%and a minimal absolute error of 0.13 in FeO content *** real-time prediction of FeO content provided excellent guidance for on-site sinter production.

关键词： Iron ore sintering Condition identification FeO prediction Multi-model integrated prediction model Feature engineering

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