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  1. No Access

    Article

    Microstructures and Mechanical Properties of the TiC/CM247LC Nickel-Based Composite Fabricated by Selective Laser Melting: Effect of Heat Treatment

    In this study, TiC/CM247LC nickel-based composite was successfully prepared by selective laser melting, then was heat treated at a solid solution temperature of 1260 °C and different aging temperature of 840 °...

    Yuting Lv, Yaojie Liu, Zhe Zhang, Qiang Zhang… in Acta Metallurgica Sinica (English Letters) (2023)

  2. No Access

    Article

    Micro/Nano-Scale Selective Phase/Area Corrosion Behavior of Nickel Aluminum Bronze (NAB)/Zn Composite Prepared by Friction Stir Processing

    In this work, nickel aluminum bronze (NAB)/Zn composites were prepared by friction stir processing (FSP), and the selective phase/area corrosion behavior of the composites was studied in the micro/nano-scale b...

    Yaojie Liu, Di Jiang, Guijiang Wei… in Metallurgical and Materials Transactions A (2023)

  3. No Access

    Chapter and Conference Paper

    Wearable Sensing Based Virtual Reality Rehabilitation Scheme for Upper Limb Training

    Upper limb rehabilitation training is an important method for stroke patients with hemiplegia to restore their upper limb motor ability. The combination of virtual reality (VR) technology and rehabilitation tr...

    Jialiang Zhang, Yaojie Liu, Juan Liu in Intelligent Robotics and Applications (2022)

  4. No Access

    Chapter and Conference Paper

    Multi-domain Learning for Updating Face Anti-spoofing Models

    In this work, we study multi-domain learning for face anti-spoofing (MD-FAS), where a pre-trained FAS model needs to be updated to perform equally well on both source and target domains while only using target...

    **ao Guo, Yaojie Liu, Anil Jain, **aoming Liu in Computer Vision – ECCV 2022 (2022)

  5. No Access

    Chapter and Conference Paper

    Adaptive Transformers for Robust Few-shot Cross-domain Face Anti-spoofing

    While recent face anti-spoofing methods perform well under the intra-domain setups, an effective approach needs to account for much larger appearance variations of images acquired in complex scenes with differ...

    Hsin-** Huang, Deqing Sun, Yaojie Liu, Wen-Sheng Chu… in Computer Vision – ECCV 2022 (2022)

  6. No Access

    Article

    Increased Surface Broadband Emissivity Driven by Denser Vegetation on the Tibetan Plateau Grassland Area

    Global changes are profoundly affecting the global terrestrial ecosystems, especially for the vegetation. Simultaneously, the affected vegetation gives feedback to the climates. The Tibetan Plateau (TP), one o...

    Yaojie Liu, Yangjian Zhang, Ke Huang… in Journal of the Indian Society of Remote Se… (2020)

  7. No Access

    Chapter and Conference Paper

    On Disentangling Spoof Trace for Generic Face Anti-spoofing

    Prior studies show that the key to face anti-spoofing lies in the subtle image pattern, termed “spoof trace", e.g., color distortion, 3D mask edge, Moiré pattern, and many others. Designing a generic anti-spoofin...

    Yaojie Liu, Joel Stehouwer, **aoming Liu in Computer Vision – ECCV 2020 (2020)

  8. No Access

    Article

    Warming slowdown over the Tibetan plateau in recent decades

    As the recent global warming hiatus and the warming on high elevations are attracting worldwide attention, this study examined the robustness of the warming slowdown over the Tibetan plateau (TP) and its relat...

    Yaojie Liu, Yangjian Zhang, Juntao Zhu, Ke Huang… in Theoretical and Applied Climatology (2019)

  9. No Access

    Chapter

    Presentation Attack Detection for Face in Mobile Phones

     is the most accessible biometric modality which can be used for identity verification in mobile  applications, and it is vulnerable to many different presentation , such as using a printed /digital screen ...

    Yaojie Liu, Joel Stehouwer, Amin Jourabloo, Yousef Atoum, **aoming Liu in Selfie Biometrics (2019)

  10. Chapter and Conference Paper

    Face De-spoofing: Anti-spoofing via Noise Modeling

    Many prior face anti-spoofing works develop discriminative models for recognizing the subtle differences between live and spoof faces. Those approaches often regard the image as an indivisible unit, and proces...

    Amin Jourabloo, Yaojie Liu, **aoming Liu in Computer Vision – ECCV 2018 (2018)

    Download PDF (3458 KB) View Chapter

  11. Article

    Open Access

    Effects of short-term grazing exclusion on plant phenology and reproductive succession in a Tibetan alpine meadow

    Grazing exclusion (GE) has been widely considered as an effective avenue for restoring degraded grasslands throughout the world. GE, via modifying abiotic and biotic environments, inevitably affects phenologic...

    Juntao Zhu, Yangjian Zhang, Yaojie Liu in Scientific Reports (2016)

    Download PDF (2082 KB) View Article

  12. Chapter and Conference Paper

    Fast and Precise Face Alignment and 3D Shape Reconstruction from a Single 2D Image

    Many face recognition applications require a precise 3D reconstruction of the shape of the face, even when only a single 2D image is available. We present a novel regression approach that learns to detect faci...

    Ruiqi Zhao, Yan Wang, C. Fabian Benitez-Quiroz… in Computer Vision – ECCV 2016 Workshops (2016)

    Download PDF (5363 KB) View Chapter

  13. No Access

    Article

    Biomimetic Nitration of Phenols Using Metalloporphyrins/H2O2/NO2 −

    An efficient metalloporphyrins/H2O2/NO2 − nitration of phenols has been developed. The total yield of nitrophenol could reach up to 55.1 %, which is about 4 and sixfold higher than that...

    Weizhi Sun, Yaojie Liu, Haibo Zhang, Mo **an, Huizhou Liu in Catalysis Letters (2015)