bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental simulation of quantum superchannels
Authors: Li Hang , Wang Kai , Wei Shijie , Yang Fan , Chen Xinyu , Sanders Barry C , Wang Dong-Sheng , Long Gui-Lu 
Published: January 2024

Abstract
Simulating quantum physical processes has been one of the major motivations for quantum information science. Quantum channels, which are completely positive and trace preserving processes, are the standard mathematical language to describe quantum evolution, while in recent years quantum superchannels have emerged as the substantial extension. Superchannels capture effects of quantum memory and non-Markovianality more precisely, and have found broad applications in universal models, algorithm, metrology, discrimination tasks, as examples. Here, we report an experimental simulation of qubit superchannels in a nuclear magnetic resonance (NMR) system with high accuracy, based on a recently developed quantum algorithm for superchannel simulation. Our algorithm applies to arbitrary target superchannels, and our experiment shows the high quality of NMR simulators for near-term usage. Our approach can also be adapted to other experimental systems and demonstrates prospects for more applications of superchannels.
Effect of Pressure on Si-Based Anode Performance in All-Solid-State Batteries
Authors: He Deyu , Yuan Minjuan , Hu Bo , Zou Chunlong , Zhao Xuyang , Zhao Chunrong , Wang Jiantao , Ding Haiyang 
Published: January 2024

Abstract
The effects of pressures on electrochemical performance, micro-morphology, surface elemental valence, and cell impedance of nano-silica-based anode all-solid-state lithium batteries (ASLBs) are investigated in this study. The cell under various applied pressures is measured using electrochemical charge/discharge tests, X-ray diffraction (XRD), scanning electron microscopy (SEM), electrochemical impedance test (EIS), and X-ray spectroscopy (XPS). The results indicate that the first cycle lithium insertion capacity reaches its highest value of 3554.5 mAh·g−1 when the Si-based anode undergoes charge and discharge at a rate of 0.1C under a pressure of 100 MPa. Moreover, the coulombic efficiency (CE) at a pressure of 300 MPa reaches a high value of 92.67%, which significantly surpasses the 88.11% under 100 MPa. Meanwhile, higher pressure significantly enhances the cycling performance of Si-based anode, with a capacity of 2268 mAh·g−1 after 100 cycles of charging and discharging at 0.3C under 300 MPa, and a capacity retention rate of 80.21%. SEM images and XPS demonstrated that higher pressures block Si expansion and inhibit crack formation in the Si-based anode, and meanwhile the lower pressure would lead to severe decomposition of Li6S5Cl in the electrode after long-term cycling and hence resulting in more SEI generation in the Si-based anode. The XPS results demonstrate that. The EIS test results show that the impedance of solid-state batteries is lower under a pressure of 300 MPa, indicating an improved interface of the ASLBs.
Thermodynamic Simulation of the Interaction Reaction between Copper-Based Oxygen Carrier and Acid Gases from Municipal Solid Waste Pyrolysis
Authors: Lin Yousheng , Lu Zhihan , He Tao 
Published: January 2024

Abstract
To reveal the interaction reaction of copper-based oxygen carriers with acid gases during chemical looping with oxygen uncoupling of MSW pyrolysis and gasification syngas, the thermodynamic analysis is employed by HSC Chemistry. The thermodynamic simulation results show that the products of the copper-chloride interactions are solid CuCl, gaseous Cu3Cl3 (g), and CuCl (g), and no solid CuCl2 is formed. In addition, it’s found that CuCl (g) originates from the high-temperature decomposition of the complex Cu3Cl3 (g). At a sufficient amount of OC, the interaction products of copper-based OC with H2S are CuSO4, SO2, and Cu2SO4, while Cu2S and CuS disappear. Compared to HCl, H2S dominates during the competitive reaction or adsorption with copper-based oxygen carrier or CaO. Due to the capture of Cl and S in the gaseous state of Ca2+, the lattice oxygen of chlorinated or sulfated oxygen carriers can be restored, suggesting that CaO can be used as an in situ dechlorinator for CLOU. The results of this work will provide theoretical guidance for the inhibition of copper-based oxygen carriers chlorination loss and active design of multifunctional oxygen carriers.
Research on Engineering Characteristics of Cement Mixing Piles Strengthening Steel Sheet Pile Structure Wharf
Authors: Ding Yingpin , Xiao Can , Sun Shuqing , Niu Fei , Zhou Xinyue 
Published: January 2024

Abstract
In order to solve the technical problem of using steel sheet piles in soft soil foundations of deep water docks, the use of grid type cement mixing pile walls to reinforce the in-situ soft soil behind steel sheet pile docks is a new type of composite structure attempt. This paper combines practical engineering and uses finite element analysis software to study the vertical displacement, vertical stress, and horizontal displacement changes of reinforced soil in three layout forms: non-mixing pile structure, grid type cement mixing structure, and dispersed mixing pile structure. The results show that the grid type cement mixing pile structure can reduce soil settlement, improve the stability of reinforced soil, and reduce lateral soil pressure on steel sheet piles compared to the non-mixing pile structure and the dispersed mixing pile structure. In the practical application of steel sheet pile wharf engineering, the use of grid type cement mixing piles can improve the stability and engineering benefits of the wharf structure.
Thermodynamic Simulation of Alkali-activated Processes of Tuff-Based Geopolymer
Authors: Cui Kewang , Feng Zhen , Zhang Tongwei , Yu Zihao 
Published: January 2024

Abstract
The quantity of tuff powder is more than that of tuff mechanized sand in the dry process, which belongs to solid waste. In this paper, tuff from Gansu, Yunnan, Jiangxi, Sichuan, and Tibet was selected as the research object, and the composition of tuff in different areas was defined. Temperature and NaOH concentration were used as variables to conduct thermodynamic simulation, so as to explore the influence of both on the products after alkali-activated. The results show that the main products of alkali-activated tuff geopolymer are sodium silicate aluminate hydrate/calcium silicate aluminate hydrate (CNASH), magnesium silicate hydrate (MSH), Gibbsite, Goethite, and Quartz, except in the Jiangxi area. The amount of CNASH increases gradually with the increase of NaOH concentration, while the amount of Quartz decreases gradually with the increase of NaOH concentration. In the range of 20°C to 100°C, temperature has a significant effect on the production of CNASH and Quartz. The production of CNASH increases first and then decreases with the increase of temperature, and reaches the maximum at about 60°C. The production of Quartz increases with increasing temperature. The conclusion of this paper is helpful in understanding the alkali-activated mechanism of tuff powder.
Effect of Non-Uniform Concentration Field on TiN Growth in Two-Phase Region with Electropulsing
Authors: Liang Shangdong , Wei Guangxu , Xiao Zixuan , Yang Chengcheng , Zhu Zhenghai , Huang Dongjian 
Published: January 2024

Abstract
Ti microalloyed steel has the advantages of high toughness and high strength, but it is easy to form TiN particles with large dimensions at high temperatures, which is harmful to the metal and seriously affects the quality of cast billets. In this paper, by analyzing the kinetic characteristics of Ti element diffusion in the two-phase region with electropulsing, the influence mechanism of pulsed current on the growth of TiN particles in the two-phase region is investigated. The results show that the pulsed current improves the flow rate of Ti and N elements in the molten steel, reduces the concentration of Ti in the liquidoid along the solid-liquid interface, and the more the current intensity, the more obvious the impact; in addition, with the increase of the flow rate, the diffusion flux of Ti elements is also gradually improved. Therefore, the pulsed current promotes the diffusion of Ti elements by improving the concentration field of Ti and other solute elements in the two-phase region, thus inhibiting the growth of TiN.
Prediction and Verification of Wear Resistance of In-situ Inorganic Compounds Reinforced Zinc Matrix Composites
Authors: Zhao Haofeng , Guo Yuedong , Wang Ru , Ma Zhiguo , Wang Ruirui 
Published: January 2024

Abstract
The wear resistance of zinc matrix composites reinforced by inorganic compounds in situ and the prediction of wear resistance by neural network were studied. The inorganic compound is Mg2Sn phase. The results show that Mg2Sn phase is a strengthening phase, and its uniform distribution in the matrix can improve the hardness and wear resistance of zinc matrix composites. When the amount of tin and magnesium respectively reach 10%, the wear resistance value at load 80N is 4.0, while the wear resistance value at 40N is 4.5. The influence of Mg and Sn elements on the hardness and wear resistance of the zinc matrix composite was predicted by neural network, and the experimental results showed that when the content of Mg and Sn elements exceeded 10%, the hardness and wear resistance of the material would decrease, which was related to the aggregation of Mg2Sn and the cleavage of the matrix, which reduced the toughness of the material.
Influence of Polysulfone Drilling Fluid Agent Structure on Biological Toxicity
Authors: Zhu Jinzhi , Wu Xiaohua , Lu Haiying , Lu Fuwei , Li Chengli , Luo Xiao 
Published: January 2024

Abstract
The impact of the structure of polysulfone drilling fluid agents on biological toxicity was investigated to determine its influence. The investigation focused on the molecular weight, group structure, and raw material composition of these agents. Results showed that Synthetic polymers with molecular weights ranging from 40 to 1.34 million showed no biological toxicity. Acute biotoxicity was not affected by the size of the polymer molecular weight. Water-soluble polymers containing quaternary ammonium groups exhibited significant biological toxicity, with EC50 values ranging from 1000 mg/L to 3000 mg/L. Emulsified asphalt using quaternary ammonium cationic surfactant showed an EC50 value of approximately 1100 mg/L. The biological toxicity resulted from solid particles dispersed by sulfonic acid and carboxyl groups in water. Slight toxicity was observed in sulfonated phenolic resins, potentially due to residual sulfonated raw materials or the rigid network structure of the resin itself.
Study on the Preparation of Crystalline Glaze from Granite Waste
Authors: Zhao Qiaoli 
Published: January 2024

Abstract
In this paper, the common gabbro granite (black) waste in the stone market is used as the main raw material to successfully prepare ceramic crystalline glaze. The best preparation process of crystalline glaze is: the ratio of material, ball and water is 1:2:0.8, the grinding time is 24h, that is, D97=34.68 μm, and the glaze layer thickness is 1.2 mm-1.68 mm, and good quality glaze can be obtained. According to XRD, differential thermal analysis and theoretical calculation of granite, the best sintering system for the glaze with granite as the main raw material is formulated as follows: the sintering temperature is 1220°C-1300°C, the crystallization holding temperature is 1140°C-1160°C, and the holding time is 1h-2h.
Investigation of Tensile Properties of FDM-Printed Reclaimed Carbon Fiber Reinforced Reclaimed Polyamide-6 Composites (rCF/rPA) via Various Densities of Infill Patterns
Authors: Su Ning , Zhu Chenkai , Chen Xiang 
Published: January 2024

Abstract
This work determined the effect of different infill patterns with various infill densities on the tensile properties of FDM-printed reclaimed carbon fiber reinforced reclaimed polyamide-6 (rCF/rPA) composites. The rCFs were derived from recycled carbon fiber composite wastes by pyrolysis, while the rPA recyclates were obtained by mechanical recovery of end-of-life (EoL) nylon fishnets. The comparison between honeycomb and triangular infill patterns within rCF/rPA coupons via the FDM recycling was performed under the various relative densities of 10%, 30%, 50%, 70%, and 90%. The best performance of rCF/rPA coupons occurred in honeycomb infill patterns with 90% relative infill densities. The tensile strength and modulus of those specimens were 76.5 GPa ± 3.5 MPa and 4.8 GPa ± 0.1 GPa, respectively.
Investigation on Cracking Cause of Drill Pipe Joint Used in an Ultra Deep Well
Authors: Zhao Mifeng , Hu Fangting , Zheng Rusen , Fan Yujie , Kang Jiayao , Wei Junhui , Long Yan 
Published: January 2024

Abstract
The drill pipe joint cracked during service, resulting in joint failure. The geometric dimensions of thread, chemical composition and microstructure of the drill pipe joint were tested. The geometric dimensions, chemical composition and microstructure were found to comply with the standard requirements. The whole macroscopic fracture didn’t show obvious corrosion product. The tensile properties, Charpy impact properties, and Brinell hardness met the standard requirements. Microstructure of fracture was analyzed, which showed a typical erosion micromorphology with parallel arranged fatigue strips. Through simulation analysis, it was found that the location of cracking was the stress concentration area. The failure mechanism of the drill pipe joint was revealed. The stress concentration led to fatigue cracking at the drill pipe joint. After the fatigue crack penetrated through the wall thickness, the drilling fluid leaked from the inner wall to the outer wall. The flow rate of the leaking drilling fluid is significantly increased. And it is sprayingly leaked, which further leads to fan-shaped erosion damage of the cracked surface from the inner wall to the outer wall.
Progress in Research on Marine Litter-Related Monitoring Technologies
Authors: Liu Haiying , Wang Mingqi , Tang Haitian , Zhang Hanlin 
Published: January 2024

Abstract
The problem of marine litter pollution is becoming increasingly serious and has become one of the important global environmental issues. From the perspective of source and sink, floating riverine litter (FRL) is the main source of floating marine litter (FML), while beach litter (BL) and FML are the source and sink of each other. It is necessary to research the transformation mechanism and collaborative governance policy among these three kinds of marine litter, based on accurate monitoring data. However, conventional monitoring methods have problems such as high labor costs, insufficient representativeness and poor comparability. Hence, developing efficient and intelligent monitoring technology is the focus of recent future. Since 2018, monitoring technique of marine litter relevant research literature has grown rapidly, showing this technique a hot spot. In this paper, the relevant research literature is divided into three litter types (BL, FML, and FRL) and two ways (fixed monitoring and mobile monitoring). Similarities and differences in research focus, platform selection, result accuracy and result application are summarized and reasoned, with a view to accelerating the research progress and better supporting BL, FML, and FRL control in China.
High Dk and ultra-high thermal conductivity ST/μBN/polyolefin composites for microwave applications
Authors: Yang Z Y , Qing Z , Li E Z , Tang B , Yuan Y 
Published: January 2024

Abstract
In this work, we examined the structure, microwave dielectric, thermal and mechanical characteristics of composites containing SrTiO3/xμBN/polyolefin (with x at 0, 6, 8, 10 and 12 weight percent). SrTiO3 (ST) and micro boron nitride (μBN) powders were fabricated with 1,2-PB/EPDM/SBS (1,2-PB, EPDM and SBS are abbreviations of 1,2-polybutadienes, ethylene-propylene-dicyclopentadiene and styrene-butadiene-styrene triblock copolymer, respectively) by hot-press process after modified by Vinyltrimethoxysilane (VTMS) and 3-aminopropyltriethoxysilane (KH550), respectively. The ball mill and surface modification procedure enhanced the dispersion of the boron nitride in the solution and promoted compatibility between ceramic particles and polyolefin matrix. The incorporation of BN created more effective boron transfer pathways with ST particles, significantly improving the thermal conductivity of the composite. However, as μBN content increased, more ceramic agglomerates and pores were introduced, deteriorating dielectric, thermal and mechanical properties of the samples. The particle size test and XPS were conducted to determine the effect of surface modification on the dispersion and surface properties of ceramics. Cross-plane thermal conductivity, TGA and stress-strain curves were used to evaluate the thermal and mechanical properties of the composites. In all, a composite with high-Dk and high thermal conductivity was obtained when x = 10 wt.%: Dk = 17.4, Df = 0.0071 and λ = 1.784 W/(m*k), which is promising for microwave applications.
Effect of Hf and Ta on Ni-based superalloy powders
Authors: Zhang H P , Liu J T , Zhang Y W 
Published: January 2024

Abstract
The effect of Hf and Ta modifying on the microstructure and composition of Ni-based superalloy powders was investigated. The element concentrations on the powder surface and subsurface were quantitatively characterized by the Auger electron spectroscopy, and cross sections of powders were observed by the electron probe microanalysis. The results show that Hf and Ta hardly change the morphology of powders, but significantly change the powder surface and subsurface composition. Hf and Ta enhance the volume fraction of MC carbides in powders, thereby reducing the concentrations of C, Ti, and Nb on the powder surface and subsurface, which effectively inhibits the formation of the prior particle boundary during HIP. It reduces crack sources and thus improves the mechanical properties of the alloy.
Study on the phase structure and electrical properties of lead-free Barium titanate-based piezoelectric ceramic
Authors: Chen Kui , Yang Chengtao , Tang Bin 
Published: January 2024

Abstract
Excessive Sr-doping has been observed to lead to a deterioration in the piezoelectric properties of BT-based ceramics. In response to this issue, this study introduces a solution through the development of lead-free piezoceramics using the composition (1-2x)Ba0.86Sr0.14Ti0.90Sn0.10O3-2xBa0.86Ca0.14Ti0.90Sn0.10O3 (BSTS-xBCTS), prepared through the conventional solid-state method. The rhombohedral, orthorhombic, and tetragonal phase coexistence is determined in the ceramic with 0.2≤x≤0.04. with x=0.3, the BSTS-xBCTS ceramic shows a sizeable piezoelectric property (d
33∼ 540 pC/N) and high ε
r value (∼ 10280), superior or comparable to the other BT-based or lead-based ceramics. These results demonstrate that the electrical property of the BSTS-xBCTS ceramic exceeds those of some lead-based ceramics or equivalent and holds significant potential in various technological applications that require electrical materials.
The effect of the preparation method of asphalt waste foam ceramic loaded Pd/Ce-P-Al2O3 coatings on their properties
Authors: Sun Y B , Gao X M , Ai H S , Shi G P , Liang F X 
Published: January 2024

Abstract
Asphalt waste-based foam ceramics were prepared by organic foam impregnation, followed by ultrasound-assisted impregnation and calcination to deposit 3-5 wt.% Pd/Ce-P-Al2O3 active coatings. The results show that γ-Al2O3 as an aluminum source provides a higher specific surface area and facilitates the dispersion of the catalytic components, so that low-temperature conversion of CO can be achieved, but the coating uniformity, stability, and the ability to modify the defects on ceramic surfaces are lower than those of the aluminum nitrate calcination products. Aluminum dihydrogen phosphate as a P source could rapidly convert 60% of CO, but the performance decreased at a later stage, while phosphoric acid as a P source could achieve the complete conversion of CO at a lower temperature. The mechanical properties of the samples with the addition of aluminum dihydrogen phosphate and aluminum nitrate baked products were better, which was 0.6 MPa higher than the uncoated foam ceramics.
Fretting wear properties of the laser cladding NiCrAlY coating on Ti-45Al alloy surface
Authors: Sun Yongshuo , Qian Chunguang , Song Qiang , Wen Daosheng , Lv Qinghua , Zhang Minghao , Wang Xinwei 
Published: January 2024

Abstract
In order to improve the fretting tribological properties of Ti-45Al alloy, the coating was prepared by laser cladding on the surface of Ti-45Al alloy using NiCrAlY mixed powder as raw material. The results showed that the microhardness of the coating was higher than that of Ti-45Al alloy, and its average hardness was about 401.8 HV. The fretting running state of the coating was obviously different from that of Ti-45Al alloy. The mixed sliding zone in NiCrAlY coating disappeared. The fretting wear morphology of the coating and the matrix was observed. The fretting wear resistance of the coating was significantly higher than that of Ti-45Al alloy.
A new nested-niche technique for optimization design of composite laminated structure
Authors: Ma Sen , Wang Haiquan , Zhao Qilin , Hu Bingxu , Chen Yun 
Published: January 2024

Abstract
Optimization design of composite laminated structure has typical features as multimodality and variable-dimension when the ply number is considered as a design variable, the niche technique combined with evolutionary algorithm is an effective method for such problem. In order to get lighter weight, a new nested-niche technique that can consider the diversity of the population in the ply number and the ply orientation successively is proposed in this paper to improve the optimization performance. Performance of the proposed technique is verified by engineering cases, the weight obtained based on the nested-niche technique is 3.32kg, reduced by 25.2% and 11.5% compared with GA and INDE in references. Finally, influence of the inner-niche radius of the technique on the performance is discussed.
The mechanical properties of (NbMoTaW)Si2 from a first-principles calculations
Authors: Jiang Huang-Hui , Shao Lin , Xu Chao-Ren , Tang Bi-Yu 
Published: January 2024

Abstract
The realm of ceramic materials has seen a surge in interest directed towards high entropy disilicides due to their exceptional properties. Using the methodologies of density functional theory (DFT) and the special quasi-random structure (SQS), we have delved into the examination of structural stability and the inherent elastic properties of (NbMoTaW)Si2. The available experimental data and the optimized lattice parameters coincide very well. The thermodynamic stability observed in all high entropy ceramics, specifically (NbMoTaW)Si2 disilicides, can be attributed to their negative formation enthalpies. The present results of elastic parameters show that the strength/hardness of (NbMoTaW)Si2 are larger due to the higher bulk and shear moduli. The Vickers hardness of (NbMoTaW)Si2 is higher than the average value of component binary metal silicide, indicating solid solution strengthening effect. The mechanical anisotropy of the (NbMoTaW)Si2 reveals the significant difference in various directions on different crystalline planes. Conducting theoretical research holds significance in facilitating the synthesis of enhanced high entropy disilicides ceramics. Furthermore, such studies are crucial in advancing the evolution and practical utilization of high entropy materials.