bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dynamic magnetic behaviors and magnetocaloric effect of the Kagome lattice: Monte Carlo simulations
Authors: Wu Wei-Chen , Shi Kai-Le , Jiang Wei 
Published: April 2023

Abstract
Based on the Monte Carlo method, we examined the dynamic magnetic behaviors and magnetocaloric effect of a Kagome lattice subjected to the influence of time-dependent oscillating and time-independent magnetic fields. We used the Ising model to describe the Kagome lattice and study the dynamic order parameters, blocking temperature, internal energy, and phase diagrams. The results revealed that exchange coupling increases the stability of the system and the bias field induces order; however, the time-dependent oscillating magnetic field induces disorder. In addition, the magnetocaloric properties, changes in magnetic entropy, and relative cooling power of the Kagome lattice were investigated.
Multiscale particle simulation of the temporal evolution of heat flux into poloidal gaps of castellated divertor with edge-localized modes
Authors: Niu Guo-Jian , Kawamura Gakushi , Dai Shu-yu , Xu Qian , He Tao , Nian Fei-Fei , Wang Rong , Yang Zhong-Shi , Luo Guang-Nan 
Published: April 2023

Abstract
Edge-localized modes (ELMs) produce an intense transient heat flux on castellated divertor mono-blocks (MBs). The parallel transport of electrons and ions from the ELM burst varies due to their different velocities, which significantly influences the power load on the MBs. This study shows that two heat load phases are caused by an ELM burst. In the first phase, the horizontal surface withstands the intense heat flux because the faster electrons generate a high sheath potential drop. The leading edge of the MBs suffers a great power load from energetic ions in the second phase. This study applies a multiscale hybrid numerical approach to investigate the temporal evolution of heat flux on the poloidal gap from the ELM source in the scrape-off layer to the castellated divertor surface. Our results indicate that the power load on both the MB surface and the leading edge should be considered in the future design of castellated divertors.
Interacting dreaming neural networks
Authors: Zanin Pietro , Caticha Nestor 
Published: April 2023

Abstract
We study the interaction of agents, where each one consists of an associative memory neural network trained with the same memory patterns and possibly different reinforcement-unlearning dreaming periods. Using replica methods, we obtain the rich equilibrium phase diagram of the coupled agents. It shows phases such as the student–professor phase, where only one network benefits from the interaction while the other is unaffected; a mutualism phase, where both benefit; an indifferent phase and an insufficient phase, where neither are benefited nor impaired; a phase of amensalism where one is unchanged and the other is damaged. In addition to the paramagnetic and spin glass phases, there is also one we call the reinforced delusion phase, where agents concur without having finite overlaps with memory patterns. For zero coupling constant, the model becomes the reinforcement and removal dreaming model, which without dreaming is the Hopfield model. For finite coupling and a single memory pattern, it becomes a Mattis version of the Ashkin–Teller model.
Dependence of the Inverse Spin Hall Voltage in Py/Ta Microstrip Array on the Microstrip Width
Authors: Huang Fei , Peng Bin , Zhang Wenxu , Zhang Wanli 
Published: April 2023

Abstract
Since inverse spin Hall effect (ISHE) can transform microwave energy into direct current (DC) energy in ferromagnetic (FM)/nonmagnetic (NM) bilayer metal materials, the ISHE-based FM/NM microstrip arrays have clear potential to be used for microwave power transmission and harvesting. Driven by the need for the miniaturization of electronic devices, it is essential to study the dependence of the characteristics of FM/NM microstrip arrays on their geometries. In this work, we have experimentally demonstrated that the Py/Ta microstrip array’s ISHE signal increases linearly with an increase in the Py/Ta microstrip width and that the effective saturation magnetization of the Py film shows the same change tendency. Moreover, the anisotropy field of the Py film increases linearly as the width decreases. Our work provides a valuable reference for the future miniaturization of ISHE-based rectifier devices.
Preparation of Multi-walled Carbon Nanotubes with Ni/SiO2 Composites
Authors: Wang Shuo 
Published: April 2023

Abstract
Using carbon monoxide as carbon source to manufacture Multi-walled carbon nanotubes on the supported of Ni/SiO2 by chemical vapor deposition. The effects of nickel loading and raw gas to carbon nanotubes were studied. When the content of Ni is 5%, the yield of carbon is very low. As the content of Ni increases from 5% to 35%, the yield gradually increases. When Ni loading exceeds 35%, the yield of carbon decreases. Through the TEM, HRTEM and XRD to characterized carbon nanotubes. The results showed that the morphology of carbon nanotubes became worse with the Ni conten increased In terms of yield and quality,the best synthesis temperature is 600°C. In the absence of hydrogen in the feedgas, the diameter of carbon nanotubes is in the narrow range of 10 to 20 nm. When hydrogen is introduced into the system, the amount of carbon increases, but the form deteriorates.
Finite-time Synchronization of the 4-D Hyper-chaotic Chen-Qi-like System
Authors: Wang Yuansheng , Li Bo , Yu Xiangyu 
Published: April 2023

Abstract
For Chen-Qi-like four-dimensional hyper-chaotic system, controllers designed with Lyapunov stability theory to achieve synchronous/anti- synchronous control of chaos are found that sometimes synchronization errors do not decrease to zero in finite time. To solve it, a new controller and parameter estimation law are proposed to achieve finite-time synchronization. The stability analysis of the closed-loop dynamics is derived and the effectiveness of the theoretical results is testified. Taking the parameters L=2, μ=0.5, the state time history diagram and the synchronous error curve are investigated via numerical simulation, which show that the synchronization errors are zero in finite time while two systems in chaotic motion, but synchronization error of the state with cubic nonlinearity is not zero in finite time while two systems in periodic motion; Adjust L=200,μ=0.5, numerical simulation again, then all the errors are zero in finite time. Thus the effectiveness is verified.
Study on Friction and Wear Properties of 3D Braided Carbon Fiber
Authors: Ma Ling , Han Ming , Du Jianhua , Yan Xiaoqin , Gu Yousong , Ji Zhen 
Published: April 2023

Abstract
In this paper, the friction and wear properties of 3D braided carbon fiber wet friction material at 2550r/min, 3800r/min and 5100r/min were studied with MM3000 friction and wear tester, and the wear mechanism was studied with SEM. The results show that the average static friction coefficient of friction materials is 0.153; With the increase of rotating speed, the dynamic friction coefficient decreases from 0.095 to 0.087; The volume wear rate decreased from 9.46*10−8cm3/J to 2.58*10−8cm3/J; The friction torque curves at three different speeds are relatively stable, showing the material has good braking stability. 3D braided carbon fiber friction material has fiber fracture and crack on the raised surface of the material after 1500 times of jointing at three different speeds. The mechanism of friction and wear is abrasive wear and fatigue wear.
Grain Size Evolution of Nickel-Based Superalloys after Hot Deformation
Authors: Lin Yingying , Jiang Tao 
Published: April 2023

Abstract
In this work, the uniaxial compression deformation test of nickel-based powder superalloys was carried out in a vacuum isothermal adiabatic environment using the Thermocmaster-Z thermal processing simulation test machine. The evolution of the microstructure in the two stages of dynamic softening and strain hardening in the true stress-true strain curve in the process, including the interaction of grain size, local misorientation and their relative mobility. During most of the plastic deformation time, the flow stress is gradually increased, that is, the strain hardening dominates, while in the remaining plastic deformation process parameters, dynamic softening dominates. Under different plastic deformation process parameters, The average grain size fluctuates to a certain extent under the condition of partial strain values, but the final evolution law is gradually decreasing, while the final trend of the average local misorientation is increasing.
A Prediction Method of Effective Modulus of POSS Modified Quartz Fiber Reinforced Silicone Matrix Unidirectional Composites
Authors: Wang Danyong , Wei Huazhen , Li Shuhu , Xing Wenfang 
Published: April 2023

Abstract
In the manufacturing process of Polyhedral oligosilsesquioxane(POSS) modified quartz fiber reinforced silicone resin composite, if the POSS content ratio and the combination performance of POSS and silicone resin can be effectively controlled, the comprehensive performance of the material can be significantly improved, and many weaknesses of the composite can be improved. At the same time, the substantial problems such as the stiffness and strength of the wave transmitting composite still need to be greatly improved can be solved, and the new wave transmitting composite can be widely used in the main bearing parts of aerospace. When POSS modified quartz fiber reinforced silicone resin matrix composites are used as structural materials, their mechanical properties, such as modulus, are one of the most important macro mechanical material parameters in engineering applications. However, there is no effective prediction method in engineering to give practical guidance. Therefore, this paper establishes a prediction method of effective modulus of POSS modified quartz fiber reinforced silicone resin matrix composites based on micromechanics, The system can accurately understand the relationship between material structure and properties, thus making it possible to predict properties and design materials, and quickly guiding the practical application of engineering.
Hierarchical Flower-Like VS2 Nanosheets Cathode for High-Performance Aqueous Zn-ion Batteries
Authors: Xie Xingchen , Wang Ni , Hu Wencheng 
Published: April 2023

Abstract
Aqueous rechargeable zinc-ion batteries (ZIBs) are an attractive alternative to lithium-ion batteries because of their superior safety and inexpensive price. However, the main challenge faced by ZIBs is the search for high-capacity materials that can hold large-diameter Zn ions. Herein, hierarchical flower-like VS2 nanosheets are synthesized as high-performance anode materials for ZIBs. The special hierarchical flower-like structure and morphology afford a large contact area and short Zn2+ ion diffusion distance. Therefore, VS2 nanosheets displays a reversible specific capacity (218.3 mAh g−1 at 100 mA g−1) and stable cyclic stability (87.7% capacity retention). VS2 nanosheets have a superior electrochemical performance, enabling a novel design approach for other ZIBs cathode materials.
A Novel Device for Studying in Vivo Magnesium Degradation under Controllable Cyclic Load in the Rabbit Model
Authors: Zhang Xuanbin , Hao Zhixiu 
Published: April 2023

Abstract
Magnesium is an important material for medical implants due to its special properties including biocompatibility, low density, high mechanical property, and biodegradability. The in vivo implantation experiment of magnesium is an important experimental method to obtain its degradation characteristics. In recent years, although in vitro studies have found that the degradation of magnesium under cyclic loading is different from static loading, there is the lack of in vivo experiment to verify the above in vitro results, while the degradation characteristic of magnesium under load is an important factor to be considered when magnesium is used as orthopedic implant. We designed a novel device to apply controllable cyclic load onto the magnesium material implanted in the rabbit tibia, containing loading chamber, motor and gear reduction mechanism, and Singlechip Computer, etc. The conducted experiments have shown that the devices were able to apply load onto the implanted magnesium in rabbits in vivo during unrestricted cage activity for at least 16 days. Likewise, no distortion or infections were observed. Results demonstrated that the novel device was able to produce alteration of the mechanical environment in vivo rabbit tibia, which showed that the load device is suitable for in vivo loading degradation characteristics testing of magnesium or magnesium alloys.
Adapt to the Development of Aero-engine Materials and Improve the Level of Trace Sulfur Detection
Authors: Wei Jianhuan , Xu Hui 
Published: April 2023

AbstractWith the development of aero-engine industry, the main materials of aero-engine, such as superalloys and steels, have higher needs for the detection of trace sulfur. We start from four aspects: ultra-pure composite flux, two-stage calibration at both ends, handling of blank influence and application of Carbon and Sulfur determinator to improve the detection level of trace sulfur. The detection of trace sulfur near 1 ppm has achieved ideal result, and the detection technology has reached the world advanced level.
Research on Settlement Control of Rectangular Pipe Jacking Crossing Weak Watery Stratum with Variable Slopes
Authors: Yang Jinchao , Wang Ruijue , Zhang Yuan , Bian Anqi 
Published: April 2023

Abstract
In order to study the influence of construction parameters on settlement when a pipe jacking machine with a rectangular section passes through weak watery stratum with variable slopes, based on the pipe jacking construction project of utility tunnel on Yangtze River Avenue, this paper analyzes the technical data of the pipe jacking machine, which includes changes of jacking force, frontal earth pressure and correction of elevation at different jacking distances, then tries to illustrate the correlation between these operational parameters and soil settlement. The on-site monitoring data of surface settlement on different dates is also be analyzed to evaluate the effect of the controlling countermeasures. Finally, some effective measures and key points are put forward to provide a reference for similar jacking projects in the future.
Study on Interlaminar Fracture Toughness of the CNTs-CF/epoxy Resin Composites
Authors: Zhang Haiyun , Xu Jingli , Zhang Jianqin , An Jing 
Published: April 2023

Abstract
Carbon nanotubes(CNTs) show the characteristics of high modulus and high strength in mechanical properties, and also have good deformation properties. Therefore, when carbon nanotubes are added to the composites, they can bear large stress and greatly absorb energy, so as to increase the durability of the composites. This paper preparaed the CNTs- Carbon fibers(CF)/epoxy resin composite prepreg and the interlaminar fracture toughness of the composites was investigated. The analysis shows that after introducing a samll amount of carbon nanotubes into carbon fiber/ epoxy resin composites, carbon nanotubes can hinder the dislocation movement and crack propagation in the resin matrix(i.e. the area between carbon fibers) to improve the fracture initiation of materials.
Enhanced Cr(VI) Adsorption from Water by Reactivation Treatment of Apricot Shell Activated Carbon
Authors: Lu Chunlan , Zhang Xiaolin 
Published: April 2023

Abstract
The pore structure of apricot shell activated carbon was changed by reactivation treatment. The influence of reactivation treatment of activated carbon on the adsorption of hexavalent chromium [Cr(VI)] from water was investigated under different conditions. The results show that the reactivation treatment enriches the pore structure of activated carbon and increases the pore size. When pH is under 4, the reactivation treatment of activated carbon does not cause a significant difference in the adsorption amount of Cr(VI) compared with untreated activated carbon. However, it is obviously contribute to Cr(VI) adsorption solution when pH is more than 4. In the same adsorption temperature, adsorption time, solution pH, and ratio of activated carbon to Cr(VI), reactivated activated carbon shows higher Cr(VI) adsorption capacity in aqueous solution than the untreated activated carbon, and maximum Cr(VI) removal rate of the reactivated activated carbon reaches 99.83%.
Experimental Study of Bearing Capacity of Steel Frame with Portal Steel Plate Shear Wall Member
Authors: Chen Yuhui , Zheng Xiaoyao , Wang Xintang , Wang Zhanliang 
Published: April 2023

Abstract
The steel frame with portal steel plate shear wall unit presented here is a new steel structure by assembling the portal steel plate shear wall into the steel frame through bolt connection. For study of shear resistance and bearing capacity of the structure, it is necessary to conduct experimental research. Three frame specimens are made here, and two geometric shapes and the case of setting stiffeners and not setting stiffeners are considered respectively. The concentrated lateral load is applied in the test and displacements and strain were measured. The results show that the setting of the shear wall element has an obvious effect on improving the lateral stiffness of the steel frame, and the failure also shows obvious plastic deformation characteristics. It is also seen that the connection has no evident failure or deformation, which means the connection construction is effective.
Control Method for Connecting the Elevated Expressway with the Ground Intersection Based on Reflective Film Material Guidance
Authors: Li Yuqi , Zhan Xuejuan , Liang Zijun , Wang Ruihan , Xiao Yun , Peng Min 
Published: April 2023

Abstract
With the rapid development of elevated expressways, urban elevated expressways bear more and more traffic volume, and the adoption of environmental protection materials has become an inevitable trend in the development of elevated expressways. a control method for connecting the elevated expressway with the ground intersection based on reflective film material is presented. Firstly, the green reflective film material is used to guide the connecting section of the elevated expressway and the ground intersection. Then, the corresponding signal timing method is proposed to optimize the traffic flow time between the elevated expressway and the ground intersection.Finally, through the analysis of the VISSIM traffic simulation software to evaluate the results show that the method is based on the reflective film material can effectively guide the elevated expressway with the ground intersection connection section, under the premise by signal optimization technology to further improve the traffic efficiency, effectively reduces the overhead elevated expressway with the ground intersection connection number of the conflicts, It provides a basis for the research on the connection section between the elevated expressway and the ground intersection based on reflective film material guidance.
Preparation and Characterization of New Phase Change Materials Based on PTLA / PVAc Blends
Authors: Li Dian , Wang Hongyang , Chen Xiao , Wang Shu , Lu Li , Liu Qibin , Wang Pingjuan , Huang Zhonghui , Liu Jialei 
Published: April 2023

Abstract
The role of phase change materials in energy storage and heat regulation has attracted more and more attention in recent years. PTLA, as a new biodegradable polyester polymer material obtained by the copolymerization of lactic acid and propylene carbonate showed us an appropriate phase transition temperature around 10 °C and the large phase transition enthalpy of about 50 J/g. In this manuscript, PTLA and traditional polymer of polyvinyl acetate (PVAc) were used to prepare novel phase transition materials by physical blending. And the blending compounds showed us the phase transition temperature in the range from 0 °C to 30 °C and the phase transition enthalpy in the range from 50 J/g to 78 J/g. Else, the thermal stability and blending compatibility were also studied in details, by Thermogravimetric analysis and scanning electron microscopy respectively.
Identifying Void and Crack Defects in Type III Hydrogen Storage Vessels Based on Microwave Inspection
Authors: Pan Jinping , Zhu Chaoming , Hu Jian , Zhu Xinwei , Yang Jianhua , Guo Yanxing , Tan Lianjiang 
Published: April 2023

Abstract
Microwave technique has become a promising candidate for non-destructive testing. In this study, microwave-based method was used to inspect type III hydrogen storage vessels and to identify void and crack defects in the carbon fiber composite wound layer. Using a vector network analyzer, the reflection coefficient S11 of type III hydrogen storage vessel samples with no defects and with a void or a crack defect in the composite wound layer was measured. The defect-containing vessels had S11 values significantly different from those of vessels without defects, based on which the defects can be detected. Moreover, identification of the two defects can be achieved by comparing the values of S11, as the void results in more microwave reflection than the crack. During the inspection, only when the horn antenna is against the defect does the S11 show great changes, indicating the detection sensitivity of the method. This work provides new insights into inspection of defects in the of carbon fiber composite wound layer of type III hydrogen storage vessels.
Study on Small Fatigue Crack Growth Rate of SLM AlSi10Mg Alloy
Authors: Wang Zhen , Ye Xuan , Li Xide , Liu Xiaoming 
Published: April 2023

Abstract
In this paper, the fatigue small crack growth rate of selective laser melting (SLM) AlSi10Mg alloy is studied by in-situ SEM experiment. The experimental results show that the small crack growth rate of SLM AlSi10Mg alloy can be described by Paris law, and the crack growth rate increases significantly with the increase in temperature. In addition, the combination of finite element simulation and fracture analysis shows that the pore is one of the main factors affecting the dispersion of small crack growth rate.
Experimental Study on Ultrasonic Tomographic Method to Detect Compactness of Concrete filled Steel Tube
Authors: Lu Wanzhu , Shen Yang , Dai Shuang , Shao Zhiwei , Qu Ming , Chen Jianghua 
Published: April 2023

Abstract
When the concrete filled steel tube member is poured, due to the large volume, the internal concrete is difficult to vibrate, easy to produce defects, not easy to observe, and the internal defects will have a non-negligible impact on its mechanical properties, therefore, it is particularly important to detect the internal defects of the concrete filled steel tube column. In this paper, the internal defects of CFST are studied based on the principle that acoustic wave propagates along the shortest acoustic path in CFST. For square concrete-filled steel tubular column, when the measurement method is adopted, the theoretical sound time calculation and sound velocity distribution map imaging are carried out for different measurement point densities. It is found that the defect identification effect is better when the number of measurement points is 5.For circular concrete-filled steel tubular column, when the measurement point spacing is determined to be 30° arc length, the measurement point arrangement method in the specification cannot be combined with CT imaging method, so the measurement point arrangement method of one-point emission and five-point receiving is proposed, and it is found that it has good identification effect on internal defects.