Xiaoqian Zhang

Nov 25, 2024 | mdpi.com | Qinghai Zhang |Xiaoqian Zhang |Qingjian Zhao |Shuang G. Zhao

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Apr 25, 2024 | onlinelibrary.wiley.com | Jing Yang |Xiaoqian Zhang |Lihua Feng

For any finite group , the Terwilliger algebra of the group association scheme satisfies the following inclusions: , where is a specific vector space and is the centralizer algebra of the permutation representation of induced by the action of conjugation. The group is said to be triply transitive if . In this paper, we determine the dimensions of and for being , and , and show that and are triply transitive.

Nov 20, 2023 | ieeexplore.ieee.org | Jie Wu |Xiaoqian Zhang

For traditional detectors in non-intelligent weapon ammunition, the common detection method for targets uses a certain threshold amplitude in the time domain, this method is susceptible to noise signal during the detection process of the system, and this phenomenon limits the application range of the ammunition. When detection targets are new type, this method is difficult to achieve the detection effect.

Nov 13, 2023 | mdpi.com | Jie Wu |Xiaoqian Zhang

1. IntroductionTunnel detection is the basic means to ensure its safety performance; the detection result is an important index to measure the safety of the tunnel, and it is also a research hotspot in the current tunnel construction. The cracks generated in the tunnel are the core factors affecting the safety of the tunnel.

Sep 14, 2023 | nature.com | Xuan Zhang |Zaixu Cui |Xiaoqian Zhang

AbstractAlthough self-injurious thoughts and behaviours (SITB) among children pose an imminent public health concern, the comprehensive understanding of SITB transitions remains unclear. Here we used the longitudinal data of 7,270 children from the Adolescent Brain and Cognitive DevelopmentSM Study (ABCD Study).