Article
Chemistry, Physical
X. H. Zhang, J. L. Xu, J. M. Luo, Z. Y. Hu, J. Huang, Y. C. Ma
Summary: In this study, Al2O3 ceramic coatings were prepared on sintered NdFeB magnets using cathodic plasma electrolytic deposition (CPED) method. The coatings were analyzed for their surface morphology, composition, corrosion resistance, and magnetic properties. The results show that the coatings mainly consist of γ-Al2O3 and α-Al2O3 phases and exhibit excellent thermal shock resistance and corrosion resistance under hydrothermal conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Kuankuan Zhang, Zhansu Yue, Yanan Ma, Jian He, Xiaogang Li, Wenjie Gong, Yunhua Huang
Summary: In this study, the influence of Nb on the microstructure and magnetic decay of sintered NdFeB magnets was investigated. The experimental results showed that Nb can optimize the microstructure, reduce crystal defects, and improve the corrosion resistance and magnetic stability of the magnets.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Jie Liu, Libei Jiang, Zukun Yang, Li Wang, Zhibiao Gao, Qianhong Shen, Xianping Fan, Hui Yang
Summary: A novel micro-/nano-structured coating for corrosion resistance of sintered NdFeB was developed by studying the effect of micro/nanomaterials on the composite coating and proposing mechanisms to enhance corrosion resistance. The coated epoxy composite with micro/nanostructure showed improved corrosion resistance, with a longer salt spray test time compared to the pure epoxy coating.
Article
Materials Science, Ceramics
M. Moradi, R. Saidi, B. Hoomehr, K. Raeissi
Summary: Zinc oxide coatings with different morphologies were electrodeposited on Ti6Al4V substrates, and the incorporation of BG nanoparticles modified the spherical morphology of the coatings. The coatings with spherical morphology exhibited enhanced surface roughness, wettability, and adhesion strength, and showed complete barrier property after immersion in PBS solution. However, adverse effects were observed for the coatings with flower-like morphology at higher deposition voltage. The ZnO-BG composite coating with spherical morphology achieved the highest corrosion barrier performance and improved formation of Ca-P deposits on its surface during bioactivity tests in SBF.
CERAMICS INTERNATIONAL
(2023)
Article
Automation & Control Systems
Xi-Peng Gong, Ting-Yi Yang, Xue Bai, Li Li, Guang-Fen Jiang
Summary: This study investigates the effect of the EDM-milling process on the surface morphology, cross-section, material removal rate (MRR), surface roughness (SR), and electrode wear rate (EWR) of sintered NdFeB. The results show that EDM-milling has better performance than conventional EDM in terms of machined surfaces.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Review
Chemistry, Physical
Purificacion Tamurejo-Alonso, Maria Luisa Gonzalez-Martin, Miguel Angel Pacha-Olivenza
Summary: The improvement of biodegradable metals in implant manufacturing is a promising research area. However, controlling the degradation rate is a challenge, which can be addressed through surface treatments. Zinc coating, known for its metal protective action, has the potential to enhance the degradation behavior of implants. This article reviews the effect of parameters in the electrochemical process on the corrosion characteristics of zinc coating and explores its applications in biomedical field.
Article
Chemistry, Applied
Hongyi Yang, Liangsong Duan, Pengjie Zhang, Guangqing Xu, Jiewu Cui, Jun Lv, Wei Sun, Bingshan Li, Dongmei Wang, Yucheng Wu
Summary: Tannic acid was used to modify multiwall carbon nanotubes to enhance their dispersibility in water, forming TCNTs hybrids. The TCNTs enhanced epoxy coatings showed superior corrosion resistance, as demonstrated by electrochemical experiments.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
J. Chen, J. L. Xu, J. Huang, L. Dai, M. S. Xue, J. M. Luo
Summary: The T-ZnOw/PDMS-MAO composite coating, consisting of zinc oxide whisker and polydimethylsiloxane, was successfully applied on sintered NdFeB magnets via micro-arc oxidation treatment. The composite coating showed no significant impact on the magnetic properties of NdFeB magnets but greatly improved corrosion resistance, demonstrating excellent superhydrophobicity.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Chemistry, Physical
Lei Li, Guolai Yang, Liqun Wang, Qingle Wu
Summary: The dynamic mechanical behavior of sintered neodymium iron boron (NdFeB) under high-speed impact conditions has been studied experimentally and theoretically, providing a theoretical basis and experimental support for its application in the field of impact.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Toshiyuki Kajioka, Toshimasa Kanai, Koji Ikegami, Hiromitsu Kozuka
Summary: This study demonstrated that increasing the size of polymerized species can enhance the anti-glare performance by reducing sparkle and increasing haze in high-resolution displays.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Automation & Control Systems
Xue Bai, Ting-Yi Yang, Xi-Peng Gong, Li Li, Jia-Zhi Cui
Summary: This paper investigates the electrical discharge machining of magnetized sintered NdFeB (MS-NdFeB) permanent magnet material to improve the machining process. The influences of various parameters on material removal rate (MRR), surface roughness (SR), and change rate of magnetic flux density (MCR) are studied through orthogonal experiments and analysis methods. The analysis of SEM pictures and comparative experiments helps to identify the optimal machining parameters for achieving desired MRR, SR, and MCR.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Umesh Somaji Waware, Roshan Nazir, A. M. S. Hamouda, Ajaya Kumar Pradhan
Summary: In this study, the addition of a noble metal (Pd) to the Ni-B nano-coating was found to significantly improve its crystalline structure, thermodynamic stability, hardness, elastic modulus and corrosion protection property.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Chemistry, Physical
Zuqiang Qiao, Shengzhi Dong, Qing Li, Xiangming Lu, Renjie Chen, Shuai Guo, Aru Yan, Wei Li
Summary: By introducing composition and process features as input, we successfully built a sintered NdFeB performance prediction model. The model has good generalization capability, high accuracy, and sound interpretation compared to previous work. Using the Shapley additive interpretation method, we solved the unexplainable problem of ML models and evaluated the contribution of features to the results. Our work is expected to accelerate performance screening and material development of sintered NdFeB.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Physical
Kuankuan Zhang, Ziwen Wang, Jian He, Xiaogang Li, Wenjie Gong, Yunhua Huang
Summary: The study showed that adding Dy and Nb increased the diffusion channels for hydrogen in the magnets, resulting in an increase in hydrogen concentration near the surface and surface roughness of the magnets. During electrochemical hydrogen charging, the magnetic properties of the magnets were affected, with coercivity, magnetic moment, and maximum energy density decreasing.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Ceramics
Ersin Unal, Abdulkadir Yasar, Ismail Hakki Karahan
Summary: In this study, stainless steel material was coated with Ni-B alloy-based, TiC particle reinforced composite film using electrochemical deposition method. The effect of trimethylamine borane (TMAB) bath concentration on the properties of the obtained Ni-B/TiC nanocomposite coatings was investigated. The results showed that TMAB contributed to increasing the deposition rate and had a stronger effect at high TiC bath contents. The nanocomposite coatings exhibited significantly reduced crystal grain size and improved hardness compared to pure Ni coating. Moreover, the increase in TMAB bath concentration led to an improvement in corrosion resistance of the coatings.
CERAMICS INTERNATIONAL
(2023)
Article
Astronomy & Astrophysics
Zhihua Wang, Liying Zhu, Kai Yuan
Summary: In this study, we analyzed the photometry of an EB-type totally eclipsing binary, 1SWASP J010313.78+352903.7, observed using the Xinglong 85 cm telescope. The results showed that it is a contact binary with a relatively low mass ratio, large fill-out factor, and a large temperature difference. The light curves exhibited asymmetric variations with a maximum variability of about 9%. A double-hot spots model on the surface of the cooler secondary adequately described these variations, indicating growing and evolving hot spots possibly caused by magnetic stellar activity and mass transfer. The large temperature difference between the contact components suggests a shared non-thermal equilibrium common envelope.
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
(2023)
Article
Engineering, Geological
Liping Zhu, Mingdong Li, Kejun Wen, Yukuai Wan
Summary: This study examined the dynamic shear strength characteristics of LCES and soft clay samples through dynamic triaxial tests. The results showed that the cement content significantly affects the dynamic strength of LCES, while the effect of EPS beads content on dynamic strength depends on the cement content. The dynamic shear strength of LCES increases with the increase of confining pressure.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Xiangyuan Wang, Yixuan Meng, Wei-Wei Huang, Linlin Li, Zhiwei Zhu, LiMin Zhu
Summary: This paper presents the design, modeling, and test of a novel normal-stressed electromagnetic (NSEA) compliant nano-positioning stage. The electromagnetic-mechanical modeling method introduced in this paper accurately predicts the working stroke and natural frequency of the NSEA compliant nano-positioning stage. Experimental results demonstrate the significantly higher prediction accuracy of this method compared to previous methods.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Chemistry, Analytical
Qiqi Chao, Yuxi Zhang, Qian Li, Luzhen Jiao, Xufeng Sun, Xuxu Chen, Lina Zhu, Qian Yang, Chengwen Shang, Rong-Mei Kong, Gao-Chao Fan, Zhi-Ling Song, Xiliang Luo
Summary: To accurately identify cancer cells, a logic-gate-assisted cancer imaging system has been developed. This system compares expression levels of biomarkers, improving accuracy for cell identification. It consists of a compute-and-release logic gate, a double-amplified DNA cascade circuit, and a MnO2 nanocarrier, enabling precise imaging of positive cancer cells.
ANALYTICAL CHEMISTRY
(2023)
Article
Physics, Applied
Qing Dai, Yuchen Miao, Xiaorong Qi, Zhenfu Zhao, Feiyu Zhao, Liqiang Zhu, Ziyang Hu
Summary: Ions or charged vacancies drift induced by electric fields in organic-inorganic halide perovskites contribute to resistive switching memory (RSM) devices. Two-dimensional (2D) OIHP films are used as the switching layer to fabricate RSM devices with stable and low voltage resistive switching characteristics. The addition of a NiOx hole transport layer enhances the reliability of RSM devices in atmospheric conditions.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Medicinal
Motoyasu Minami, Yukako Honda, Kaoru Ueno, Tetsuya Matsunaka, Junbo Wang, Liping Zhu, Akihito Takano, Takahisa Nakane
Summary: In the Yarlung Zangbo River Valley of the southeastern Tibetan Plateau, we discovered a community of Ephedra saxatilis plants in a xeric steppe with shrubland vegetation habitat. The soil in this area had higher levels of water-soluble cations and nitrogen. Analysis of 13 samples of E. saxatilis revealed variability in the content of ephedrine and pseudoephedrine, with some samples containing both compounds, some containing only ephedrine, and one sample containing only pseudoephedrine.
JOURNAL OF NATURAL MEDICINES
(2023)
Article
Astronomy & Astrophysics
Azizbek Matekov, Fangbin Meng, Shengbang Qian, Ildar Asfandiyarov, Linjia Li, Shuhrat Ehgamberdiev, Liying Zhu
Summary: We present new multi-color light curves of V1309 Her and AS CrB observed by the 60 cm telescope at the Maidanak Astronomical Observatory. The analysis of our BVRCIC light curves combined with atmospheric parameters revealed that both systems are low-mass-ratio overcontact binaries. The periodic oscillations in their O - C curves were found and could be explained by the light travel-time effect of the third bodies.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
(2023)
Article
Astronomy & Astrophysics
Chuqi Wu, Shengbang Qian, Fuxing Li, Miloslav Zejda, Zdenek Mikulasek, Liying Zhu, WenPing Liao, Ergang Zhao
Summary: Studying massive binaries in various stages of evolution or environments can provide insights into the evolution of these systems. This study focuses on the rarely studied binaries in the Small Magellanic Cloud (SMC), which has lower metallicity compared to our Milky Way. By analyzing the light curves, it was found that OGLE-SMC-ECL-2063 is a high mass ratio and overcontact binary in the SMC. The research on OGLE-SMC-ECL-2063 provides a basis for studying the formation and evolution of early-type contact binaries.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
(2023)
Article
Astronomy & Astrophysics
Linfeng Chang, Liying Zhu, Fangbin Meng
Summary: In this study, the periods of the W UMa contact binary systems HH UMa and V1175 Her were found to show cyclic variations, possibly due to a Light Travel Time Effect induced by a third body. The cyclic variation in HH UMa has a period of about 20 years and may be caused by a third body with a mass larger than 0.23 times the mass of the Sun. The period increase in V1175 Her, with a rate of about 2x10^(-7) days per year, indicates mass transfer from the less massive component to its companion.
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Qianru Zhao, Yingfeng Li, Bowen Shen, Quanyu Zhao, Liying Zhu, Ling Jiang
Summary: By using UiO-66 as a photocatalyst, the intracellular pool of reduced NADH was increased in Clostridium tyrobutyricum, resulting in higher butyrate production. This system improved the utilization rate of carbon sources and reduced carbon loss, providing an outstanding strategy for energy savings and emissions reduction.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Health Care Sciences & Services
Lihui Zhu, Na Zhang, Yaojia Hu, Yi Xu, Tingwei Luo, Yuqiong Xiang, Sishan Jiang, Zhiqiang Zhang, Muhua Chen, Yuee Xiong
Summary: This study investigated the knowledge, attitude, and behavior of pediatric healthcare workers regarding children's palliative care (CPC). The results showed that the overall level of knowledge, attitude, and behavior of the healthcare workers about CPC was moderate. Factors such as working years, highest education, professional title, job position, marital status, religion, grade of hospital, type of medical institution, experience of caring for a terminally ill child/kinsfolk, and total hours of CPC education and training received were found to influence CPC implementation and development. Therefore, it is important to emphasize continuous education and training for healthcare workers in CPC and to focus on the mentioned influencing factors to establish targeted training courses and evaluate post-training effects.
BMC PALLIATIVE CARE
(2023)
Article
Materials Science, Multidisciplinary
Zhi Wen Shi, Wei Sheng Wang, Ling Ai, Yan Li, Xin Li Chen, Hui Xiao, Yu Heng Zeng, Li Qiang Zhu
Summary: In this study, a mixed proton and electron conductor hybrid oxide neuromorphic transistor is proposed with the adoption of aqueous solution-processed mesoporous silica coating-based electrolyte as gate dielectric. The device exhibits optical and electrical synergetic coupling behaviors, showing typical synaptic responses and transition between short-term plasticity and long-term plasticity. Furthermore, it demonstrates interesting non-associative learning. The results indicate that the proposed MPEC hybrid oxide neuromorphic transistor has great potential in the field of neuromorphic engineering and could be applied in the bionic visual perception platform.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Fluids & Plasmas
Can Xu, Xin Jin, Yonggang Wu
Summary: The coupled phase oscillator model is widely used to understand collective dynamics in large ensembles of interacting units. This study investigates the impacts of heterogeneous strategies, correlation function, and natural frequency distribution on emergent dynamics using a variant of the Kuramoto model. An analytical treatment is developed to capture the essential properties of the equilibrium states.
Article
Materials Science, Biomaterials
Bowen Shen, Wenhan Li, Yuxian Wang, Shuyu Cheng, Xiaonan Wang, Liying Zhu, Yangheng Zhang, Lizeng Gao, Ling Jiang
Summary: Sulfur-containing nanomaterials, such as nano iron sulfide (nFeS), show great promise as nanodrugs for bacterial infection due to their antibacterial activity. However, the inorganic sulfur produced by nFeS can easily change its form or volatilize in aqueous solution, affecting its efficacy. To address this issue, we propose a novel strategy of encapsulating nFeS in a hydrogel to preserve the inorganic sulfides and enhance the interaction between nFeS and bacteria. Our study demonstrates that the nFeS-Hydrogel not only effectively maintains the antibacterial activity, but also exhibits reduced inflammation and excellent biocompatibility. It has great potential as a fast excipient for clearing infection, reducing inflammation, and accelerating wound healing.
BIOMATERIALS ADVANCES
(2023)
Article
Environmental Sciences
Manping Liu, Zhu Li, Simin Li, Fang Liang, Chengwang Huang, Hui Pan, Jie Wu, Siyao Liu, Limin Pu, Peter Christie, Jing Song, Paul Henning Krogh, Xin Ke, Yongming Luo, Longhua Wu
Summary: Soil pollution poses a threat to soil biodiversity and human health, but there are still many unknowns about the impact of heavy metal pollution on soil mite communities and their distribution in areas with complex environmental factors.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
