bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recent advances in cardiovascular disease research driven by metabolomics technologies in the context of systems biology
Authors: Zhang Boyao , Schmidlin Thierry 
Published: September 2024

AbstractTraditional risk factors and biomarkers of cardiovascular diseases (CVD) have been mainly discovered through clinical observations. Nevertheless, there is still a gap in knowledge in more sophisticated CVD risk factor stratification and more reliable treatment outcome prediction, highlighting the need for a more comprehensive understanding of disease mechanisms at the molecular level. This need has been addressed by integrating information derived from multiomics studies, which provides systematic insights into the different layers of the central dogma in molecular biology. With the advancement of technologies such as NMR and UPLC-MS, metabolomics have become a powerhouse in pharmaceutical and clinical research for high-throughput, robust, quantitative characterisation of metabolic profiles in various types of biospecimens. In this review, we highlight the versatile value of metabolomics spanning from targeted and untargeted identification of novel biomarkers and biochemical pathways, to tracing drug pharmacokinetics and drug-drug interactions for more personalised medication in CVD research (Fig. 1).
MedBlockSure: Blockchain‐based insurance system
Authors: Krishna Charu , Kumar Divya , Kushwaha Dharmender Singh 
Published: September 2024

AbstractHealth insurance plays a vital role during medical emergencies in the coverage against medical expenses. Insurance fraud is an international challenge that affects most economies worldwide. Government and private companies offer many insurance schemes. The successful implementation of numerous health insurance programs offered for the public by and large are often threatened by corruption, fraud, and numerous other data‐related issues. Further the procedure for acclaiming the insurance money is not only critical in terms of verification of claims but tedious and time consuming also. To help redress these problems, blockchain technology can be utilised as is it offers improved security, transparency, auditability, privacy, accountability along with many other advantages. The goal is to create and implement a blockchain‐based solution for efficient functioning of insurance system and to prevent such health insurance systems from going bankrupt. The authors have proposed an insurance claim model, MedBlockSure using blockchain architecture for creating interoperability between the insurer, the hospital and the insurance company. The model will aid in maintaining transparency between the insurer and the company while eliminating the requirement of middlemen or agents. The conceptual view of the proposed system using sequence and use case diagrams and data management framework and smart claim processing system is demonstrated.
Vagueness and ambiguity are very different (persuasion
devices)
Authors: Coppola Claudia , Mannaioli Giorgia , Vallauri Edoardo Lombardi 
Published: September 2024

Abstract
Without taking a strong theoretical stance on the
terminological boundary between ambiguity and vagueness, we suggest
that, at least when considered as persuasion devices, they are quite
different and almost opposite phenomena. We suggest that vagueness
is effectively persuasive in that it can specifically divert
epistemic vigilance from questionable or unpleasant
contents. Ambiguity, conversely, encodes multiple meanings drawing
additional attention to the message. We support
such claims through examples from markedly persuasive texts and
through the results of a self-paced reading experiment revealing
differences between contextually precise vague expressions (VE),
contextually non-precise VE, and precise expressions.
A Simple Urea Approach to N-Doped α-Mo2C with Enhanced Superconductivity
Authors: Li 李 Longfu 龙夫 , Shi 石 Lei 磊 , Zeng 曾 Lingyong 令勇 , Li 李 Kuan 宽 , Yu 余 Peifeng 沛峰 , Wang 王 Kangwang 康旺 , Zhang 张 Chao 超 , Chen 陈 Rui 睿 , Xiang 项 Zaichen 载琛 , Zhang 张 Yunwei 云蔚 , Luo 罗 Huixia 惠霞 
Published: September 2024

Abstract
Chemical doping is a critical factor in the development of new superconductors or optimizing the superconducting transition temperature (T
c) of the parent superconducting materials. Here, a new simple urea approach is developed to synthesize the N-doped α-Mo2C. Benefiting from the simple urea method, a broad superconducting dome is found in the Mo2C1−x
N
x
(0 ⩽ x ⩽ 0.49) compositions. X-ray diffraction results show that the structure of α-Mo2C remains unchanged and there is a variation of lattice parameters with nitrogen doping. Resistivity, magnetic susceptibility, and heat capacity measurement results confirm that T
c was strongly increased from 2.68 K (x = 0) to 7.05 K (x = 0.49). First-principles calculations and our analysis indicate that increasing nitrogen doping leads to a rise in the density of states at the Fermi level and doping-induced phonon softening, which enhances electron–phonon coupling. This results in an increase in T
c and a sharp rise in the upper critical field. Our findings provide a promising strategy for fabricating transition metal carbonitrides and provide a material platform for further study of the superconductivity of transition metal carbides.
Preparation and adsorptive performance study of amino modified-crosslinked composite aerogel for VOCs in wooden furniture
Authors: Li Qian , Feng Panpan , Qian Mingyuan 
Published: September 2024

Abstract
There is a lack of standards for harmful VOC substances in furniture products in China, and furniture’s peculiar smell is still a hot concern for society. Amino modified-crosslinked composite aerogel was prepared using a modified sol-gel method by incorporating chitosan and inorganic silica as the inorganic phase, and it was added to polyurethane coating (PU paint) and wooden substrate. Results indicated that the prepared amino modified-crosslinked composite aerogel had a pore size of 12 μm to 16 μm, retaining the lightweight structure and mesoporous characteristics of the gel while containing the active organic groups of chitosan. It exhibited a certain adsorption capacity for VOCs in both PU paint and wooden substrate, with the highest adsorption efficiency observed in fir, reaching 72.86%. These results demonstrate the feasibility of this method and suggest a new approach to pollution prevention and control in wooden furniture. It holds promising potential for scalable applications.
Effect of surface micro-texture morphology on the wettability of aluminum alloy on B4C surface
Authors: Dai Yuchi , Liu Jia , Shi Yan 
Published: September 2024

Abstract
To enhance the wettability of AlSi10Mg on the B4C surface, a 2D laminar two-phase flow, phase-field coupled multi-field model is utilized to investigate the effect of surface micro-texture morphology on the wettability of AlSi10Mg on B4C surfaces and optimize the morphology of the micro-texture with the best improvement of the interfacial wetting effect. The results of the study show that compared to the square texture, the conical texture has a better effect on the improvement of the wettability of the interface. The best wettability of AlSi10Mg on the B4C surface was obtained at a 1:1 depth-to-width ratio of the conical texture, and the contact angle of the Al droplet is 47.9, which is improved by 21.22% compared to that of the smooth interface. The interfacial wetting state is transformed from the Wenzel state to the Cassie state with the increasing depth-to-width ratio of the textures, and the wettability of the interface deteriorates.
Research on hydrogen distribution of electroless nickel plating on aluminum-based silicon carbide composites
Authors: Wang Nan , Cui Qingxin , Li Sizhen , Wang Jingrun , Li Jiafeng , Wang Xuguang , Xu Junjie , Tong Xiaobo , Wang Jun 
Published: September 2024

Abstract
Aluminum-based silicon carbide composite materials have the characteristics of high thermal conductivity, low thermal expansion, and good dimensional stability. Therefore, the composites are widely used in space microwave component shell products. In order to meet the functional requirements of conductivity, welding, and heat dissipation when applied to antenna microwave components, aluminum-based silicon carbide composite materials need to be chemically plated with nickel, which introduces hydrogen, thus requiring research on hydrogen release and control. Here, SEM, XRD, and other methods are used to characterize the microstructure of aluminum-based silicon carbide substrate and nickel plating layer. There are certain pore structures in both the substrate and plating layer, providing a place for hydrogen storage. The experimental method of hydrogen microprinting has been used to characterize the distribution of hydrogen. The results showed that the hydrogen distribution pattern in aluminum-based silicon carbide nickel plating is as follows: after nickel plating on aluminum-based silicon carbide, hydrogen is distributed in the nickel plating layer and the shallow substrate under the coating; with the extension of time, hydrogen spontaneously diffuses to the deep substrate; hydrogen is mainly distributed in the Al matrix and less on SiC particles.
Study on the dilution mechanism of laser-cladding AlCoCrFeNi high-entropy alloy coatings
Authors: Li Ying , Shi Yongjun 
Published: September 2024

Abstract
High-performance AlCoCrFeNi high-entropy alloy (HEA) coating is manufactured by employing laser cladding to enhance the wear-resistant properties of 45# steel. Finite element simulations and experiments are combined to examine the effects of dilution rate on coating properties. The findings demonstrate that the rate of dilution increases as the speed of the laser scan increases, leading to a noticeably greater Fe concentration in the coating. Due to the low solidification rate at 4 mm/s, a moderate convection can be formed, which leaves the Fe content comparable to that of the other elements. Convection of the melt pool is exacerbated by the faster scanning speed, which allows more Fe to flow from the substrate into the coating and raises Fe concentration. The average values of microhardness are 581.54 HV, 601.86 HV, and 276.75 HV at scanning speeds of 4, 6, and 8 mm/s, respectively. Moderate dilution of the substrate can increase the microhardness, while excessive dilution can lead to a higher Fe concentration in the coating, which seriously deteriorates the properties. This study provides a guide to fabricating high-performance AlCoCrFeNi HEA coatings for 45# steel.
The sealing performance of PTFE O-rings at low temperature
Authors: Wang Jing , Hao Haijun 
Published: September 2024

Abstract
Polytetrafluoroethylene (PTFE) has the advantages of high chemical stability, wide operating temperature range, excellent lubrication, etc. It is widely used in aerospace, automotive industry and other engineering fields and plays an important role in sealing applications of low-temperature media. However, in practical engineering applications, the design of PTFE O-rings in low-temperature variable-temperature working conditions lacks a reference basis. Based on the sealing structure of low-temperature pressure vessel, this paper establishes a two-dimensional axisymmetric model using the finite element analysis software Abaqus to study the sealing performance of PTFE O-rings in the static sealing system, and analyzes the effects of temperature, compression rate, cold shrinkage on the deformation of the PTFE O-rings, the Mises stresses, and the contact pressure.
Enhanced hydrolysis of spiramycin in aqueous solution using SiO2/SO3H
Authors: Lyu Hongyu , Chen Shuai , Zhang Rong , Zhang Chunliang , Jiang Ruiruo , Yang Wen 
Published: September 2024

Abstract
Sulfonated silicon dioxide (SiO2/SO3H) solid acids were synthesized and they were characterized and used for spiramycin hydrolysis pretreatment of antibiotic wastewater. Results show that the spiramycin removal effect rankings are as follows: SiO2/SO3H > SiO2 (pH = 3 or so) > control group. A first-order model was used to reflect the hydrolytic kinetics. The hydrolysis rate of the SiO2/SO3H solid acid calcined at 600°C is the highest, up to 3.59×10−2 (k). The performance of SiO2/SO3H is in positive correlation with the total acidity, which was determined by using the n-butylamine titration method. This hydrolytic method eliminates the need for the on-site handling of hazardous and corrosive mineral acids. As an attractive selective catalytic pretreatment method, it is targeted at removing related functional groups from antibiotics to reduce the inhibitory effect and allow antibiotic wastewater to further be easily biologically treated.
Physically crosslinked polyvinyl alcohol hydrogel for electromagnetic shielding
Authors: Liu Zian , Wu Yufeng , Zhang Zheng , Xie Xinyu , Cao Wanting , Xu Jianchun , Huang Kai 
Published: September 2024

Abstract
As military and civilian electronic communication technologies advance rapidly, there is a growing interest in the design and study of high-performance materials for electromagnetic shielding. In marine environments especially, the use of devices like wireless communication, radar, and satellite navigation is common. Hydrogels, a type of porous material, possess characteristics such as low density, high surface area, and exceptional flexibility. Conductive hydrogel materials, which combine the benefits of conductive and hydrogel materials, exhibit conductivity, adjustable mechanical flexibility, and ease of processing. They also have strong electromagnetic wave absorption capabilities. To enhance the effectiveness of electromagnetic shielding in the broadband range of 5-18 GHz, we propose a method to create polyvinyl alcohol hydrogel through physical cross-linking. This involves preparing the hydrogel using the freeze/thaw technique and then physically cross-linking it by submerging it in various salt solutions. Our method significantly improves the electromagnetic shielding effectiveness, with the hydrogel in magnesium chloride solution showing the greatest enhancement in performance, achieving a ~7 dB improvement across different frequencies. The physical cross-linking approach for hydrogel preparation offers the benefits of simplicity and affordability, showcasing a noteworthy electromagnetic shielding effect with promising applications in the field.
Study on porous carbon materials derived from Chitosan
Authors: Wang Shasha , Tian Zhi , Zhao Jianlin , Xu Yuelong , Zhang Yangguang , Zhang Lihui 
Published: September 2024

Abstract
The materials with high specific surface area, uniform pore size distribution, and high nitrogen content were prepared by using chitosan as raw material and a low co-soluble mixture (lithium nitrate, potassium nitrate, and potassium sulfate) as a pore-forming agent and salt template agent. The CO2 adsorption capacity of the material was tested at 25°C (2.15 mmol/g) and 0°C (2.88 mmol/g). It was found that more pores and higher nitrogen content were conducive to the adsorption of CO2 by the material.
Nucleation promotion for the atomic layer deposition of HfO2 onto carbon nanotubes for device applications
Authors: Li Bingxian 
Published: September 2024

Abstract
The potential of semiconducting single-walled carbon nanotubes (CNTs) as the next-generation semiconductor information material as a successor to silicon-based technology is promising. However, a significant challenge for CNT based electronics at device level lies in the obtainment of high-quality gate dielectrics such as HfO2 on the dangling bond-free and chemically inert surface of CNTs. To address this issue, this paper studies the atomic layer deposition (ALD) of HfO2 onto the surface of carbon-based materials, and focuses on how to promote the nucleation via two methods, i.e. low-temperature Nanofog method and high-temperature variable parameter method. Both methods are confirmed to be effective in improving the continuity and uniformity of ALD HfO2 films.
Experimental study on activation of coal gangue and preparation of cementing materials
Authors: Wang Guangliang , He Xingmei , Yang Youliang , Xiong Mingzhou , Ji Yonghua , Qin Bingke 
Published: September 2024

Abstract
The production of coal gangue in China is constantly increasing, and it has become a large amount of solid waste. Open-air storage not only leads to a waste of land resources but also the harmful elements in coal gangue can cause pollution to the environment. This article studies the use of activated coal gangue in the preparation of cementitious materials. The research results show that the optimal activation conditions are an activation temperature of 650°C and an activation time of 120 minutes. When the amount of coal gangue mixed under these activation conditions is 25%, the cementitious material prepared has the maximum flexural and compressive strengths at 3d, 7d, and 28d.
Synthesis of amino silicone oil for use in oil agent in carbon fiber
Authors: Wang Junsha , Huang Xianwen , Zhang Cheng 
Published: September 2024

Abstract
An oil with uniform particle size distribution, good heat storage, and good wettability for carbon fiber was prepared. In other words, by mixing with non-ionic emulsifiers E1303 and E1309, the most suitable synthesis temperature, solid content, and the proportion of silicone oil emulsifiers were explored by using the control variable method. The results show that carbon fiber oil with uniform particle size distribution and good heat-resistant storage can be obtained when the synthesis temperature is 50°C, the solid content is 20% and the emulsifier ratio is 1:3. The particle size of the carbon fiber oil is 200 nm, the particle size distribution index is less than 0.3, and the particle size distribution is uniform.
Effect of thermal deformation on the microstructure and tensile property of the TiZrAl medium entropy alloy
Authors: Guo Rong , Cui Jiaxiang , Dou Bang , Zhao Qian , Sun Shihai , Wang Liang , Xue Yunfei 
Published: September 2024

Abstract
Light high/medium entropy alloys with HCP structure are getting attention because of their high strength and good work hardening ability. However, low ductility is an urgent problem to be solved in them. In this paper, a lightweight medium entropy alloy TiZrAl with an HCP structure was used as the model alloy. The layered structure was transformed into a spherical structure through a thermal deformation process, which made the tensile strength up to 918 MPa, plasticity up to 19.36%, and showed good work hardening ability. This study provides a useful reference for the development of lightweight medium entropy alloys with high performance.
Study on the effect of heat treatments on microstructure and mechanical properties of nano SiC reinforced AlSi7Mg alloy
Authors: Zou Tianchun , Song Zhe , Chen Minying 
Published: September 2024

Abstract
This paper investigated the influence of heat treatment on the microstructure evolution and mechanical performance of nano SiC-enhanced AlSi7Mg alloy fabricated using the laser powder bed fusion technique. After heat treatment, the grain size of the specimen increases significantly, the reticular structure is gradually broken, and Si is gradually precipitated after annealing. With increasing annealing temperature, elongation increases, while the yield strength decreases. After solution-aging heat treatment, the grain distribution is more uniform, the grain size increases slightly, and larger-sized Si and Mg2Si particles precipitate. As the solution temperature increases, the yield strength and the tensile strength of the samples show an increase followed by a decrease, while the trend of elongation is opposite. Both heat treatments exhibit ductile fracture as the predominant damage mode.
Analysis of electrothermal damage in a radome exposed to electromagnetic radiation
Authors: Gui Zhongxiang , Xia Ruoxuan , Wei Shengwen 
Published: September 2024

Abstract
After nearly 9 months of electromagnetic irradiation with a power density of 10 W/cm2, the unit blocks of an A-sandwich radome in the electromagnetic beam scanning area experienced electrothermal damage. Both the inner skin and core layer foam of the A-sandwich unit blocks in that area present different levels of damage. The inner skin is wrinkled and cracked, and the core layer foam is locally charred, carbonized, and ablated. The temperature images recorded through the infrared thermal beam method show that the temperature distribution of the unit blocks in the beam irradiation area is abnormal and strongly related to the discontinuous structure distribution of the core foam and resin. The non-uniformity of core material is the main cause of the electrothermal damage to unit blocks. By process improvements, the shaping of the polyurethane foam core layer is changed from cutting, resin bonding, and splicing to one-step foaming without resin binder, and the continuity of the core layer material is ensured. The usage results of unit blocks made by the new process show that the temperature field distribution is uniform, with a maximum temperature of only 31.3°C, which is 71.62% lower than the maximum temperature of 110.3°C in the damaged block.
Investigation of high field breakdown characteristics in CNTFETs
Authors: Zeng Weihao , Zhou Zijie 
Published: September 2024

Abstract
The enhancement of stability in carbon nanotube field effect transistors (CNTFETs) is crucial for mitigating high field failures, thereby influencing device reliability through modifications in channel dimensions (W and L), as well as the incorporation of dielectric layers and gate metals during fabrication. The present study demonstrates the correlation between device withstand voltage and channel size, as well as the impact of gate oxide layer and gate metal introduction on device reliability. The findings reveal that both the breakdown voltage and breakdown current of the device are influenced by W, while only the breakdown voltage is affected by L. Furthermore, a gradual decrease in device robustness is observed with continuous integration of the dielectric layer and gate metal. The increase in device index simultaneously leads to an effective augmentation of the device failure current. These results provide valuable insights and guidance for optimizing the structural design of devices.
Low cycle fatigue behavior and failure mechanism of 34CrNiMo6 steel used as connecting rod for diesel engine
Authors: Wang Zengquan , Zhao Guangshuo , Jing Guoxi , Zhang Liqiang , Hou Yexing , Pang Jianchao 
Published: September 2024

Abstract
In this paper, for the 34CrNiMo6 steel material used in diesel engine connecting rods, the low-cycle fatigue properties and failure mechanism were studied. The metallographic structure of 34CrNiMo6 has been investigated by using optical microscopes, scanning electron microscopes, and transmission electron microscopes. Tensile tests and low-cycle fatigue experiments were performed at different levels of strain amplitudes, and the microstructural changes were monitored. The examination indicates that the structure of 34CrNiMo6 steel consisted primarily of a ferrite base and small spherical and rod-shaped carbides, with a mean particle size measuring 2 μm. It had exceptional mechanical characteristics of high strength and moderate plasticity. The total strain amplitude (TSA) of 34CrNiMo6 steel affected the cycling behavior, which was stable at low TSA (0.2% ~ 0.3%). At high TSA (0.4% ~ 0.7%), a large number of dislocations were annihilated through the dynamic recovery process, showing a typical cyclic softening phenomenon. The low-cycle fatigue failure behavior was mainly a combined mode of quasi-cleavage fracture and cross-grain fracture.