bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of TiC content on the microstructure and properties of CoCrMo/TiC composite coating under ultrasonic assistance
Authors: Yi Xiaohao , Sun Huanming , Zhao Hui , Gong Xun , Du Chunyan , Wang Di , Qu Ning 
Published: February 2025

Abstract
TC4, as a consequence of its low density, strong mechanical strength, and superior resistance to rust, is widely used in a variety of industries, including the chemical industry, aerospace, and navigation. Yet, its employment is restricted to a few particular fields due to its low hardness and low wear resistance. This work focuses on the application of laser cladding technology to manufacture CoCrMo/TiC composite paints on TC4 substrate with different TiC concentrations. The research employs XRD, OM, SEM, and EDS to examine the cladding layer’s chemical makeup and microstructure. Tribological characteristics and micro hardness were also assessed. Results indicate that the cladding layer primarily consists of the bcc phase and fcc second phase. As the TiC percentage increases, the protective coating shows a better mechanical connection to the substrate. The cladding layer is 2.03 times harder than the matrix at 30 wt.% TiC concentration. The cladding layer mostly experiences adhesive and abrasive wear, and there is a noticeable improvement in wear resistance.
Preparation of flowerlike magnetic hierarchical mesoporous iron oxide microspheres by solvothermal method without surfactants
Authors: Wu Zeqing , Long Haibo , Yu Chuanshun , Liu Kaixuan , Fu Zhongchao 
Published: February 2025

Abstract
For the first time, we report a novel solvothermal method using glycerol as a solvent for the controlled synthesis of flowerlike magnetic hierarchical mesoporous iron oxide microspheres (HMIMs). Flowerlike HMIMs can be prepared by using ferric citrate and urea at low solvothermal temperatures without adding any surfactants and stabilizers. The microspheres not only have magnetic properties but also have 3 nm and 31 nm mesoporous structures. The specific surface area is as high as 202 m2/g.
Effect of heat treatment on carbides, microstructure uniformity and creep property of DZ125 nickel-based alloy
Authors: Tian Ning , Dang Danping , Yu Jianwei , He Kai , Li Bin , Li Jixue , Ma Luosheng 
Published: February 2025

Abstract
The effect of solution temperature on the carbide evolution and creep properties of DZ125 directional solidification nickel-based alloy is investigated through solution treatment at different temperatures, mechanical property tests, and microstructure observation. The investigations show that after the low-temperature solution treatment, the dendrite/inter-dendrite regions have obvious microstructure inhomogeneity. The γ′ phase in inter-dendrite regions is coarse, while that in dendrite regions is relatively fine, and some of the massive MC-type carbides in the as-cast alloy are transformed into sieve mesh. After the high-temperature solution treatment, the coarse γ′ phase in inter-dendrite regions is eliminated, and the massive MC-type carbides are transformed into granular M23C6-type carbides to be dispersively distributed at grain boundaries and intragranular regions. The creep properties of alloys being treated in high-temperature solution are substantially improved at temperatures around 800 °C compared to those of the low-temperature solution-treated alloys. At the late creep stage, under low-temperature solid solution treatment, cracks in the alloy preferentially initiate near massive carbides at grain boundaries. Under high-temperature solid solution treatment, cracks in the alloy preferentially initiate at grain boundaries and the granular carbides act as pegs to the cracks, which hinder crack extension.
Performance of copper-based amorphous alloys for degradability of azo dyes using electrochemical methods
Authors: Bai Xiaole , Ma Guofeng 
Published: February 2025

Abstract
In the area of the catalytic degradability of azo dyes, amorphous alloys are increasingly attracting a wide range of interest from research scholars. The electrochemical method is characterized by cleanliness and high efficiency, but the high energy consumption of this method limits its application. However, the use of amorphous alloys as electrodes for wastewater degradation is highly efficient. In this paper, an electrochemical method was applied to degrade acid orange using copper-based amorphous alloy as electrode medium, and the effects of current density, pH value, and other factors on the efficiency of degradation were investigated. The final results show that the degradation rate reaches 99.85 % in 40 min when the pH of the initial solution is 7 and the current density is 11.9 mA/cm2. Therefore, copper-based amorphous alloy strips as electrode material have a good degradation effect on acid orange by electrochemical method and have good corrosion resistance and cyclic stability, which has a broad application prospect in degrading azo dye wastewater.
Effect of Sm content on microstructure and corrosion resistance of Mg-0.5Zn-0.4Mn-0.5Al magnesium alloy
Authors: Yao Yuan , Wang Lewen , Li Siqi , Li Mei , Jia Zheng , Fu Li 
Published: February 2025

Abstract
The Mg-0.5Zn-0.4Mn-0.5Al (AZM) magnesium alloy was used as the research object, and the effect of rare earth Sm on the microstructure and corrosion rate of the alloy was studied. The results show that Sm atoms combine with Mg and Al atoms and transform into Al2Sm, Al11Sm3, and Mg41Sm5 phases. As Sm content increases, the quantity and magnitude of the second phase change, while the morphology and distribution change little. Based on the findings of the hydrogen evolution, the AZM alloy rate of corrosion can be decreased by adding Sm. When the Sm content reaches 1 wt.%, the corrosion rate reaches the minimum value of 0.0205 ml/(cm2·h), and the corrosion resistance is the best.
Using a new threshold function in seismic data de-noising
Authors: Qin Feilong , Cheng Yali , Zhu Hongjin 
Published: February 2025

Abstract
In geological exploration, there is a large amount of unpredictable noise interference in seismic data that needs to be removed. The traditional soft and hard threshold methods have been widely used in seismic data de-noising, but they have some defects such as discontinuity and constant deviation at the threshold, which leads to poor de-noising effects. Therefore, this paper introduces the weighted average idea into the traditional threshold methods and an improved threshold function based on seismic data de-noising is proposed. In the new method, this paper explores the layers of wavelet decomposition, establishes an optimal wavelet basis, and selects a variability threshold according to the number of decomposition layers instead of a fixed constant, avoiding the elimination of some effective signals. The de-noising effect of new method is evaluated by using two evaluation indicators: signal-to-noise ratio abbreviated as SNR and root mean square error abbreviated as RMSE. Finally, the designed new method is applied to actual mining areas for seismic data de-noising. The results show that the new method can effectively remove noise from seismic data and the texture of seismic profile after noise reduction is clear and smooth. Compared with traditional threshold methods, the new method has better de-noising performance.
Deep Learning Methods for Multi-Element Bias Correction in Numerical Weather Forecasts
Authors: Liu Peiting , Chen Wei , Dong Jun , Zhang Li , Pang Jin , Yang Haipeng 
Published: February 2025

Abstract
Modern weather forecast operations rely on numerical model predictions, and improving the accuracy of model forecasts is crucial for enhancing refined intelligent gridded forecasts. In this study, based on three deep learning models, namely Coupled U-Nets (CU-Net), Attention U-Net (Att-Unet) and Swin-Unet, the integration of meteorological factors and terrain data for modelling is conducted in the Huang-Huai River Basin and its surrounding areas by using the European Centre for Medium-Range Weather Forecasts multi-element forecast data from March 2017 to April 2022. The results from the deep learning-based methods are analyzed and compared with those from the traditional Anomaly Numerical-correction with Observations (ANO) method. The results indicate that the deep learning methods exhibit more remarkable positive correction effects than the ANO method. Specifically, the Swin-Unet model performs the best in correcting 2-m temperature (T2m
) forecasts and 2-m specific humidity forecasts, while the Att-Unet model is optimal for correcting 10-m zonal wind, 10-m meridional wind and surface pressure forecasts. The credibility curves of the corrected results indicate that the correction benefits of various deep learning methods tend to be related to the different ranges of corrected elements. For example, the Att-Unet and Swin-Unet models perform the best when T2m
< 0°C and T2m
> 25°C, respectively. However, in terms of the correction for 10-m wind speed forecasts, the advantages of deep learning methods are outstanding when wind speed is less than 8 m·s−1. The CU-Net model excels in high-humidity regions. Moreover, the Swin-Unet model, which is based on a U-shaped encoder-decoder with a pure transformer, demonstrates a stronger ability to portray the details in individual correction cases, such as characterizing high-temperature regions, extreme humidity areas and local wind speed variations in the Yangtze River Basin.
The sedimentary evolution of distributive fluvial system in arid and low accommodation space sag: A case study of the lower fourth sub-member of Shahejie Formation from Bonan Sag in Zhanhua Depression, Bohai Bay Basin
Authors: Xu Qisong , Wang Yongshi , Meng Tao , Zhang Bo , Wang Hao 
Published: February 2025

Abstract
The distributive fluvial system (DFS) mainly dominates sedimentary process of arid zones and is quite different from fans of mild climate zones. recent researchers focused on DFSs and try to reveal development law of DFSs in arid zones. However, different time scales of research from modern DFSs, ancient DFSs and physical simulation experiment induced debates on the sedimentary character and evolution of ancient DFSs. This paper constructs sedimentary model of ancient arid DFSs in constrain with sequence stratigraphy and sag structure for providing a new way to understand the ancient DFSs in arid zones. During the period of lower fourth sub-member of Shahejie Formation (Es4x), arid climate and low accommodation space developed in Bonan Sag. That provide well natural conditions for investigating the ancient DFSs in arid zones. The unique evolution of sequence stratigraphy and distinctive sag structure constructed two type distributive fluvial system in different topography in Bonan Sag during the period of Es4x. In the gentle slope belt, the DFS transported sediments in a long distance and wide range. The DFS developed in large scale and thin sand body during the transgressive system tract (TST). As the sediment supply decreased, retrogradation and distal fan developed in the DFS during the regressive system tract (RST). The DFS of gentle slope belts shortened and narrowed during the RST stage. In the steep slope belt, more accommodation spaces generated with the high gradient. The concentration of accommodation constructed thick DFS with restricted distribution during the TST stage. During the RST stage, the sediment supply decreased and accommodation spaces became low and migrated with the evolution of sequence stratigraphy and sag structure. In response to the evolution of sediment supply and accommodation spaces, the DFS developed progradation in space with thinner sand body.
Studies on properties of coral aggregate strengthened by granulated blast furnace slag (GBFS) and concrete prepared by strengthened coral aggregates
Authors: Huang Yijie , Liu Honggang 
Published: February 2025

Abstract
To enhance the mechanical, durability and deformation properties of coral coarse aggregate concrete (CAC), alkali-activated granulated blast furnace slag (GBFS) paste (AGP) coated CCA is used to strengthen coral coarse aggregate (CCA). The strengthened coral aggregate concrete (SCAC) was prepared by strengthened CCA (SCCA). The influences of the strengthening parameters (molarity of sodium hydroxide (Mol) and modulus of sodium silicate (Ms) of AGP) on the microstructures and properties of SCCA and SCAC were studied by axial compression tests and scanning electron microscopy. The results showed that microstructures and properties of SCAC were greatly improved after using SCCA. Compared to CAC, the cubic compressive strength (f
cu) of SCAC increased by 23.74% on average. With the increase of Ms, the f
cu of SCAC first increased and then decreased, while the influence of Mol was negligible. The deformation properties of SCAC also varied with the change of strengthening parameters. With the increase of Ms of AGP, the peak strain (ε
o) of SCAC increased, and the maximum increase in ε
o was 28.32% in comparison to CAC. The decline of the stress-strain curve of SCAC became gentle, and its curve curvature was enhanced, which caused the energy dissipation capacity and ductility of SCAC to be 122.76% and 15.28% greater than those of CAC, respectively.
Oxygen-vacancy-abundant amorphous layer and Dual-doping strategy enabling superior electrochemical performance in Li-rich materials
Authors: Liu Deyuan 
Published: February 2025

Abstract
To meet the rapid development demands of high-energy Li-ion batteries, this paper presents a strategy for a Co- and Ni-free single-crystal Li-rich cathode via a high-speed temperature rise sintering method. By constructing an oxygen-vacancy-abundant amorphous layer on the surface and inducing dual-ion doping in the bulk phase, this research aims to optimize the irreversible oxygen loss, voltage decay, and poor cycling stability of single-crystal Li-rich Mn-based materials. Testing results indicate that the prepared material exhibits an initial discharge capacity of 342.1 mAh g−1 and capacity retention of 76.2% after 800 cycles, and the gas generation and voltage decay are also significantly reduced.
Numerical simulation of aluminum deoxidization in the RH process
Authors: Zhao Xinyu 
Published: February 2025

Abstract
Metal aluminum is usually used to deoxidize as a deoxidant in RH reactor for producing ultra-low carbon Al-killed steel. Studying the process of aluminum deoxidization is of significance for forecasting the distribution of aluminum and optimization of deoxidization duration. An inhomogeneous two-phase model is used to simulate the RH circulating process. A multicomponent equation is used to simulate the diffuse process of elements, aluminum and oxygen. The control of the source term of the component equation is used to simulate the reaction process. Then the numerical model of aluminum deoxidization for producing ultra-low carbon Al-killed steel is established. The following results are concluded: the results of the simulation are accorded with the results of actual production. So the model is authentic and veracious. When the flux of lift gas is 96 Nm3/h, the mass fraction of oxygen is exhausted to balance concentration about 200 s after aluminum is thrown into liquid steel. Then the reaction stops. The element aluminum is uniform about 500 s after aluminum is thrown into liquid steel. The maximum value of the mass fraction of aluminum decreases from 0.14% to 0.12% and the time of deoxidization decreases from 179.2 s to 149.4 s while the flux of lift gas increases from 72 Nm3/h to 120 Nm3/h.
Sterilization of escherichia coli in cotton fabric by supercritical carbon dioxide fluid
Authors: Yan Jun , Chen Yitong , Zhang Huimin , Li Hong , Liao Yongping , Du Bing , Gao Dawei 
Published: February 2025

Abstract
Sterilizing clothing is essential due to the health risks posed by bacteria, which thrive in fabrics. Traditional sterilization methods have limitations, making supercritical carbon dioxide (scCO2) an innovative alternative. This technology effectively inactivates microorganisms at lower temperatures and moderate pressures without generating waste. Using first-order inactivation kinetics, results show that increased temperature and pressure lead to higher E. coli mortality rates. The stages of the deactivation process can be divided into two stages: a rapid phase lasting 1 to 15 minutes, followed by a slower phase after 15 minutes. Performance tests reveal that scCO2-treated cotton fibers exhibit greater surface roughness, fracture strength, and elongation, though their structure becomes denser and permeability decreases. Under optimal conditions of 50°C, 12 MPa pressure, and 25 minutes, the inactivation logarithm reaches 6.7 orders of magnitude, suggesting a promising new method for fabric sterilization.
Quantitative analysis of slurry cement powder injection based on microwave plasma torch
Authors: Zhu Zongjun , Wei Haoze , Yu Dengjie , Jin Wei , Yu Bingwen 
Published: February 2025

Abstract
The elements of Mg, Al, Ca, and Si in cement were quantitatively analyzed by slurry powder injection microwave plasma torch emission spectrometry (MPT-OES). Through the comparative test of powders with different particle sizes, 40 μm powder was selected to configure 0.05% m/v slurry, and 0.01% m/v glycerol + 1% v/v HCl was selected as a dispersant. Based on the principle of the Babington nebulizer, a slurry nebulizer with a good atomization effect was designed and fabricated to meet the experimental conditions, and the atomization efficiency was 3.28%. The slurry was stabilized by ultrasonic shaking for 20 min before injection, and the MPT light source was introduced through the nebulization chamber through a peristaltic pump (0.2 mL/min). The oxygen shielding gas was 1.2 L/min, the argon maintenance gas was 0.6 L/min, and the argon carrier gas was 0.2 L/min. The mass concentrations of Mg, Al, Ca, and Si were 2.85∼10.92, 17.96∼34.76, 192.11∼211.00, and 9.38∼54.81 μg/mL, respectively, and the intensity in the concentration range was linear. The linear correlation coefficients were greater than 0.997, and the relative standard deviations were 1.14%-4.56% (n=50). The results show that this method has a good detection effect under different powers, and has a good application prospect in the online detection of solid powders.
Mixed adsorption characteristics of magnetic calcium silicate for Pb(II), Cd(II), and Cr(III) in solution
Authors: Han Jianfeng , Chen Xiaoping 
Published: February 2025

Abstract
Adsorption methods have been widely employed for heavy metal wastewater treatment, yet traditional adsorbents pose challenges in terms of recovery. Magnetic adsorbent materials have garnered attention due to their ease of recovery and reuse. However, studies on their simultaneous adsorption of multiple heavy metal ions are limited. In this study, a magnetic mesoporous calcium silicate adsorbent (Fe3O4@MCS) was synthesized via an improved solvothermal and chemical precipitation method and applied to treat simulated wastewater containing Pb, Cd, and Cr ions. The adsorption capability of Fe3O4@MCS was assessed in a series of batch studies under a range of circumstances, including adsorbent dosage, pH, temperature, oscillation intensity, contact time, and initial metal concentration. The results demonstrated that Fe3O4@MCS exhibited excellent adsorption capacities for Pb, Cd, and Cr. Enhancements in adsorbent dosage, pH, temperature, and oscillation intensity improved the adsorption performance. After five cycles, the removal percentages of Pb2+, Cd2+, and Cr3+ decreased by 21.48%, 13.56%, and 23.54%, respectively. The adsorption mechanisms were found to include surface precipitation, surface complexation, physical adsorption, and ion exchange.
Research on the synthesis and properties of EPEG high water reducing polycarboxylate superplasticizer at room temperature
Authors: Yang Xianxian 
Published: February 2025

Abstract
A highly water reducing polycarboxylate superplasticizer was prepared at room temperature using ethylene glycol monovinyl polyethylene glycol ether (EPEG, content of 60%), acrylic acid (AA), hydroxyethyl acrylate (HEA), and multiple esters as the main synthetic materials, under the action of initiators and based on the principle of the free radical polymerization reaction. The influence of different synthetic factors on the dispersibility of polycarboxylate superplasticizers was studied through orthogonal experimental analysis and single-factor adjustment. The results showed that the optimal synthesis process was as follows: the acid ether ratio was 2.2, and the amounts of reducing agent, hydrogen peroxide, and mercaptoethanol were 0.07%, 0.55%, and 0.24% of the amount of EPEG, respectively. The synthesis temperature was controlled within the range of 25°C to 35°C. At this time, the synthesized polycarboxylate superplasticizer had a better water reduction rate and slump retention performance.
Bactericidal properties of magnesium hydroxide nanodispersions and intelligent feedback platforms
Authors: Cao Chang , Dun Linan 
Published: February 2025

Abstract
In this study, 3-(Trimethoxysilyl) propyl methacrylate was used as a modifier for surface modification of magnesium hydroxide to prepare magnesium hydroxide nanodispersions. Among them, the magnesium in magnesium hydroxide comes from the brine of the Charkhan Salt Lake. Magnesium hydroxide nanodispersions are well dispersed in water, and the UV transmittance of aqueous nanodispersions with a powder mass ratio of 10 wt% can reach more than 60%. Aqueous-phase magnesium hydroxide nanodispersions were used for the preparation of a bactericidal solution, which had a good scavenging effect on Escherichia coli, providing a new idea for the application of magnesium hydroxide in the field of bactericides.
Glucose assisted preparation of Cu/ZnO/Al2O3 catalyst for the synthesis of neopentyl glycol
Authors: Zhu Wanbang , Liu Hui , Wei Bing , Wang Fang 
Published: February 2025

Abstract
The preparation of ternary Cu/ZnO/Al2O3 catalysts with different gradients of glucose mass fraction was carried out using a distributed and concurrent precipitation method. The catalytic promotion effect on the hydrogenation synthesis of neopentyl glycol (NPG) from hydroxypropionaldehyde (HPA) was analyzed and characterized. It was found that adding a certain amount of glucose to the catalyst preparation process can enhance the distribution of surface-reduced copper, increase the amount of active Cu+, and improve the Cu+/Cu0 ratio. Evaluation results demonstrated that the glucose-modified catalyst has a promoting effect on the conversion of HPA to NPG.
LaAl11.76-x-y(NixTiy)O19 (x,y=0.2-0.8) microwave dielectric ceramics exhibit τf nearly zero
Authors: Jiang Mian , He Hua , Huang Chuyun 
Published: February 2025

Abstract
The development of mobile communication technology urgently needs microwave dielectric ceramic materials with high-temperature stability. Herein, LaAl11.76-x-y(Ni
x
Ti
y
)O19 (LANT, x,y=0.2-0.8) ceramic samples were produced using the solid-state reaction technique. The experimental results show that after sintering at 1300 °C for 2 h, the excellent microwave dielectric properties are gained at x=0.4 and y=0.6, εr=18.1, Q×f=23677 GHz, and τf=+0.15 ppm/°C. The εr and Q×f values first rise and then diminish as the amount increases x due to the change in the structural stability of the material and the symmetric tensile pattern of the Al/NiTi-O bond. It is speculated that the addition of [Ni
x
Ti
y
]3+ increases the inclination angle of the Oxygen octahedron, and thus promotes the orientation of τf to zero. This work verifies the great potential of LANT (x,y=0.2-0.8) ceramics in improving the temperature stability of microwave devices.