27 Result(s)

Article

MIM: A multiple integration model for intrusion detection on imbalanced samples

The quantity of normal samples is commonly significantly greater than that of malicious samples, resulting in an imbalance in network security data. When dealing with imbalanced samples, the classification mod...

Zhiqiang Zhang, Le Wang, Junyi Zhu, Dong Zhu, Zhaoquan Gu, Yanchun Zhang in World Wide Web (2024)

Article

Porphyrin-based covalent organic framework as oxidase mimic for highly sensitive colorimetric detection of pesticides

A covalent organic framework–based strategy was designed for label-free colorimetric detection of pesticides. Covalent organic framework–based nanoenzyme with excellent oxidase-like catalytic activity was synt...

Qingju Liu, Junyi Zhu, Hui Wang, Yunxia Luan, Zhikun Zhang in Microchimica Acta (2024)

Article

Nonlinear Schrödinger equation with nonzero boundary conditions revisited: Dbar approach

The Dbar dressing method is extended to study the focusing/defocusing nonlinear Schrödinger (NLS) equation with nonzero boundary condition. A special type of complex function is considered. The function is mer...

Junyi Zhu, Xueling Jiang, Xueru Wang in Analysis and Mathematical Physics (2023)

Article

Attention Matching Network for few-shot learning in the syndrome differentiation of cerebral stroke

Treatment based on Syndrome Differentiation is one of the most important characteristics of Traditional Chinese medicine (TCM). In recent years, Artificial Intelligence (AI) and Deep Learning has played a grea...

Zijuan Zhao, Kai Song, Xueting Ren… in International Journal of Machine Learning … (2023)

Article

Enhanced low-temperature proton conductivity in hydrogen-intercalated brownmillerite oxide

Solid oxide ionic conductors are employed in a wide range of energy-conversion applications, such as electrolytes in fuel cells. Typically, conventional ionic conductors based on metal oxides require elevated ...

Nianpeng Lu, Zhuo Zhang, Yujia Wang, Hao-Bo Li, Shuang Qiao, Bo Zhao… in Nature Energy (2022)

Chapter and Conference Paper

Multi-view Heterogeneous Network Embedding

In the real world, the complex and diverse relations among different objects can be described in the form of networks. At the same time, with the emergence and development of network embedding, it has become a...

Ouxia Du, Yujia Zhang, **nyue Li, Junyi Zhu… in Knowledge Science, Engineering and Managem… (2022)

Chapter and Conference Paper

A Collaborative Graph Convolutional Networks and Learning Styles Model for Courses Recommendation

With the rise of Massive Open Online Courses (MOOCs) and the deepening of lifelong learning, there is a growing demand for learners to learn on online learning platforms. The vast amount of course resources pr...

Junyi Zhu, Li** Wang, Yanxiu Liu… in Collaborative Computing: Networking, Appli… (2022)

Article

Microstructure Evolution and Mechanical Performances of SiC_f Reinforced (Al₃Ti + Al₃Ni)-Based Metallic–Intermetallic Laminate Composite

In present work, a novel SiC_f reinforced (Al₃Ti + Al₃Ni)-based metallic–intermetallic laminate (Ti–(Al₃Ti + Al₃Ni)/SiC_f-MIL) composite without centerline defect was prepared using Ti, Al foils, NiTi wires and SiC...

Yuqiang Han, Qinghua Que, Ran Cheng, Chunfa Lin… in Metals and Materials International (2021)

Article

Optimization Mechanisms of Microstructure and Mechanical Properties of SiC Fiber Reinforced Ti/Al₃Ti Laminated Composite Synthesized Using Titanium Barrier

A novel structure-optimized SiC fiber reinforced metal-intermetallic-laminated composite (SiC_f-Ti/Al₃Ti) without intermetallic centerline defect has been fabricated by vacuum hot pressing using stacked fibers and...

Chunfa Lin, Siyu Wang, Haoran Yan, Yuqiang Han… in Metals and Materials International (2021)

Article

Synthesis and Antioxidant Activity Evaluation of Trolox Derivatives

To find potent antioxidants, 16 novel Trolox derivatives were designed and synthesized via a reduction and esterification reaction. The chemical structures were characterized by NMR and MS. Trolox derivatives ...

Qian Xu, Luyun Zhang, Dazhao Zhan, Guangqing **a… in Chemistry of Natural Compounds (2020)

Article

Chemical Composition and Biological Activities of Essential Oil from Roots of Aralia continentalis

Luyun Zhang, Qian Xu, Dazhao Zhan, Hui Zhang… in Chemistry of Natural Compounds (2020)

Article

Synthesis and Biological Activities of Tyrosol Phenolic Acid Ester Derivatives

Sixteen tyrosol derivatives were synthesized and characterized by NMR and HR-MS. The antioxidant activity of those compounds was evaluated using four different assays. The results showed that some target compo...

Hao Zang, Peng Shen, Qian Xu, Luyun Zhang, Guangqing **a… in Chemistry of Natural Compounds (2019)

Article

Spectral analysis of generalized Volterra equation

A generalized Volterra lattice with a nonzero boundary condition is considered by virtue of the inverse scattering transform. The two-sheeted Riemann surface associated with the boundary problem is transformed...

Junyi Zhu, **nxin Ma, Zhijun Qiao in Frontiers of Mathematics in China (2019)

Article

Gate-tunable room-temperature ferromagnetism in two-dimensional Fe₃GeTe₂

Materials research has driven the development of modern nano-electronic devices. In particular, research in magnetic thin films has revolutionized the development of spintronic devices^1,2 because identifying new ...

Yujun Deng, Yijun Yu, Yichen Song, **gzhao Zhang, Nai Zhou Wang, Zeyuan Sun… in Nature (2018)

Article

Riemann-Hilbert approach to TD equation with nonzero boundary condition

We extend the Riemann-Hilbert approach to the TD equation, which is a highly nonlinear differential integrable equation. Zero boundary condition at infinity for the TD equation is not suitable. Inverse scatter...

Junyi Zhu, Linlin Wang, **anguo Geng in Frontiers of Mathematics in China (2018)

Article

Trace formula and new form of N-soliton to the Gerdjikov–Ivanov equation

The Gerdjikov–Ivanov equation is investigated by the Riemann–Hilbert approach and the technique of regularization. The trace formula and new form of N-soliton solution are given. The dynamics of the stationary so...

Hui Nie, Junyi Zhu, **anguo Geng in Analysis and Mathematical Physics (2018)

Article

Comparative Flower and Inflorescence Organogenesis among Genera of Betulaceae: Implications for Phylogenetic Relationships

Betulaceae have simple flowers but complex inflorescences. Recent phylogenetic analyses using molecular data have produced robust phylogenetic trees of Betulaceae. In this study, we evaluated the phylogenetic ...

Junyi Zhu, Lifan Zhang, Baoqing Ren, Min Chen, Ruiqi Li, You Zhou… in The Botanical Review (2018)