Kai Wang

The effect of the pre-decomposition of NH3 on its combustion performance: A ReaxFF study

Yutong Hu, Hai Feng Zhang, Wenyang Liu, Kai Wang et autres

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Graph-based Approaches and Functionalities in Retrieval-Augmented Generation: A Comprehensive Survey

Zulun Zhu, Tiancheng Huang, Kai Wang, Junda Ye et autres

Large language models (LLMs) struggle with the factual error during inference due to the lack of sufficient training data and the most updated knowledge, leading to the hallucination problem. Retrieval-Augmented Generation (RAG) has gained attention as a promising solution to address the …

Achieving Zero Leakage, Ultralong Lifespan, and Intrinsic Opening Sensing in Microvalves Through Structural Superlubrication and Triboelectric Nanogenerator Technologies

Jie An, Yang Jiang, Tao Jiang, Fangming Li et autres

Valves are critical components in advanced fluid control systems (AFCS) and play a vital role in applications such as soft robotics and medical devices. Traditional mechanical valves often suffer from issues such as leakage and wear, which compromise the efficiency and precision …

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The Influence of NH 3 On Coal Combustion Characteristics and Nitrogen Reaction Pathways with ReaxFF MD Simulation

Guanglei Wang, Kai Wang, Hai Zhang, Wenyang Liu et autres

Due to the significant impact of NH3/coal co-firing on combustion and greenhouse gas emissions in power plants, it is necessary to study the mechanism of NH3/coal co-firing to provide favorable support for its clean and efficient utilization in power plants in the …

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A Triple Piezoelectric‐Electromagnetic‐Piezoelectric Energy Harvester with Cam Contact Driven and Cylindrical Magnet Noncontact Driven

Wenhui Li, W.H. Liu, Jiahao Pei, Kai Wang et autres

For the traditional energy harvester converting other energy forms into electrical power, lots of energy is wasted as heat or other forms due to the single energy transduction mechanism. To further improve the energy conversion efficiency, the study presented here provides an …

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Next-Generation Superlubric Microvalves for Flexible Robotics: Enhancing Fluid Control with Zero Leakage, Ultralong Life, and Intrinsic Sensing Capability

Jinhui Nie, Jie An, Yang Jiang, Xiaojian Xiang et autres

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The effect of H2 and NH3 on the pyrolysis of coal model compounds based on reactive molecular dynamics simulation

Wenyang Liu, Hai Zhang, Kai Wang, Yutong Hu et autres

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Magnetic field and ultrasound induced simultaneous wireless energy harvesting

Sumanta Kumar Karan, Sujay Hosur, Zeinab Kashani, Haoyang Leng et autres

A dual energy harvester based upon the magnetoelectric mechanism is reported. The harvester can generate ∼52.1 mW under simultaneously applied magnetic field and ultrasound in porcine tissue operating under safety limits.

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Study on pyrolysis mechanism of coal in hydrogen-rich atmosphere based on reactive molecular dynamics simulation

Kai Wang, Hai Feng Zhang, Xin Wang, Weidong Fan

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Widening the bandwidth of vibration energy harvester by automatically tracking the resonant frequency with magnetic sliders

Kai Wang, W.H. Liu, Yufei Tang, Jiahao Pei et autres

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Future Work and Conclusion

Yixiang Fang, Kai Wang, Xuemin Lin, Wenjie Zhang

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A combined nonlinearity mechanism for potential well shaping of MEMS bi-stable energy harvester

Kai Wang, Chao Ren, Xuhan Dai, Zhuoqing Yang et autres

Abstract This paper presents a combined nonlinearity mechanism for the enhanced capability in shaping double well potential energy of MEMS bi-stable energy harvester, which is critical for both wideband inter-well oscillation and high power output. In comparison with conventional magnetic-induced bi-stable energy …

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