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Chinese Physics B 2020年第11期29卷 197-202页

作者： Jian-Gong Hu Xi Chen Li-Yong Wang qing-hong liao qing-Nian Wang School of Information Engineering Nanchang UniversityNanchang 330031China State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsWuhan 430071China Center for Cold Atom Physics Chinese Academy of SciencesWuhan 430071China Center for Optics Research and Engineering Shandong UniversityQingdao 266237China School of Information Science and Engineering Shandong UniversityQingdao 266237China

Systematic error suppression and test data processing are very important in improving the accuracy and sensitivity of the atom interferometer(AI)-based weak-equivalence-principle(WEP) test in space. Here we present a spectrum correlation method to investigate the test data of the AI-based WEP test in space by analyzing the characteristics of systematic errors and noises. The power spectrum of the Eotvos coefficient η, systematic errors, and noises in AI-based WEP test in space are analyzed and calculated in detail. By using the method, the WEP violation signal is modulated from direct current(DC) frequency band to alternating current(AC) frequency band. We find that the signal can be effectively extracted and the influence of systematic errors can be greatly suppressed by analyzing the power spectrum of the test data when the spacecraft is in an inertial pointing mode. Furthermore, the relation between the Eotvos coefficient η and the number of measurements is obtained under certain simulated parameters. This method will be useful for both isotopic and nonisotopic AI-based WEP tests in space.

关键词： atom interferometer weak equivalence principle spectral correlation systematic error

Fast multiqubit phase gate in circuit QED beyond the rotating-wave approximation

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Fast multiqubit phase gate in circuit QED beyond the rotatin...

Fatigue Strength Analysis of Dissimilar Aluminum Alloy TIG Welds

第十六届全国量子光学学术报告会

作者： Xin Liu Guang Yu Fang qing hong liao Ke Ya Zhou Shu Tian Liu Department of Physics Harbin Institute of Technology Department of Electronic Information Engineering Nanchang University

＜正＞We propose a two-step approach to realize the fast multiqubit controlled-phase gate of one qubit simultaneously controlling N qubits in the circuit QED system composed of gradiometer-type flux qubits coupled to a transmission line *** the rotating-wave approximation,we obtain an effective XX coupling of qubits under two different *** absence of the degree of the resonator freedom in the effective Hamiltonian indicates that the evolution is insensitive to the initial

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 265-274页

作者： liao Xiangyun WANG Ruijie LIU Guoshou ZHAO Pinglin Faculty of Mechanical and Electrical Engineering Kunming University of Science and TechnologyKunming 650500China Faculty of Civil Engineering and Mechanics Kunming University of Science and TechnologyKunming 650500China

The constant amplitude loading fatigue tests were carried out on the 6061/7075 aluminum alloy TIG fillet welded lap specimens in this study,and the weld seam cross-section hardness was *** experimental results show that most specimens mainly failed at the 7075 side weld toes even though the base material tensile strength of 7075 is higher than that of *** maximum stress-strain concentration in the two finite element models is located at the 7075 side weld toe,which is basically consistent with the actual fracture *** weld zone on the 7075 side experiences severe material softening,with a large ***,the Vickers hardness value on the 6061 side negligibly changes and fluctuates around 70 *** obvious defects are found on the fatigue fracture,but a large number of secondary cracks *** germinate from the weld toe and propagate in the direction of the plate *** reinforcement has a serious impact on fatigue *** life will decrease exponentially as the weld reinforcement increases under low *** is found that the notch stress method can give a better fatigue life prediction for TIG weldments,and the errors of the predicted results are within the range of two factors,while the prediction accuracy decreases under low *** equivalent structural stress method can also be used for fatigue life prediction of TIG weldments,but the errors of prediction results are within the range of three factors,and the accuracy decreases under high stress.

关键词： TIG welding notch stress method equivalent structural stress method fatigue life finite element analysis

Enhancing Deepfake Detection:Proactive Forensics Techniques Using Digital Watermarking

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Computers, Materials & Continua 2025年第1期82卷 73-102页

作者： Zhimao Lai Saad Arif Cong Feng Guangjun liao Chuntao Wang School of Automation Guangdong University and TechnologyGuangzhou510006China School of Immigration Administration(Guangzhou) China People’s Police UniversityGuangzhou510663China Department of Mechanical Engineering College of EngineeringKing Faisal UniversityAl Ahsa31982Saudi Arabia Cyber Police Division Guangzhou Public Security BureauGuangzhou510030China School of Forensic Science and Technology Guangdong Police CollegeGuangzhou510320China College of Mathematics and Informatics South China Agricultural UniversityGuangzhou510642China

With the rapid advancement of visual generative models such as Generative Adversarial Networks(GANs)and stable Diffusion,the creation of highly realistic Deepfake through automated forgery has significantly *** paper examines the advancements inDeepfake detection and defense technologies,emphasizing the shift from passive detection methods to proactive digital watermarking *** detection methods,which involve extracting features from images or videos to identify forgeries,encounter challenges such as poor performance against unknown manipulation techniques and susceptibility to counter-forensic *** contrast,proactive digital watermarking techniques embed specificmarkers into images or videos,facilitating real-time detection and traceability,thereby providing a preemptive defense againstDeepfake *** offer a comprehensive analysis of digitalwatermarking-based forensic techniques,discussing their advantages over passivemethods and highlighting four key benefits:real-time detection,embedded defense,resistance to tampering,and provision of legal ***,the paper identifies gaps in the literature concerning proactive forensic techniques and suggests future research directions,including cross-domain watermarking and adaptive watermarking *** systematically classifying and comparing existing techniques,this review aims to contribute valuable insights for the development of more effective proactive defense strategies in Deepfake forensics.

关键词： Deepfake proactive forensics digital watermarking traceability detection techniques

High-temperature-tolerant flexible supercapacitors: Gel polymer electrolytes and electrode materials

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Journal of Energy Chemistry 2025年第1期100卷 426-457页

作者： Chong Peng Xinyi Huang Mingwei Zhao Shuling liao Quanhong Yang Nianjun Yang Siyu Yu School of Chemistry & Chemical Engineering Southwest University Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage School of Chemical Engineering and Technology and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Department of Chemistry & IMO-IMOMEC Hasselt University

The development of flexible supercapacitors(FSCs) capable of operating at high temperatures is crucial for expanding the application areas and operating conditions of supercapacitors. Gel polymer electrolytes and electrode materials stand as two key components that significantly impact the efficacy of hightemperature-tolerant FSCs(HT-FSCs). They should not only exhibit high electrochemical performance and excellent flexibility, but also withstand intense thermal stress. Considerable efforts have been devoted to enhancing their thermal stability while maintaining high electrochemical and mechanical performance. In this review, the fundamentals of HT-FSCs are outlined. A comprehensive overview of state-of-the-art progress and achievements in HT-FSCs, with a focus on thermally stable gel polymer electrolytes and electrode materials is provided. Finally, challenges and future perspectives regarding HT-FSCs are discussed, alongside strategies for elevating operational temperatures and *** review offers both theoretical foundations and practical guidelines for designing and manufacturing HT-FSCs, further promoting their widespread adoption across diverse fields.

关键词： Polymer membrane electrodes

A six-variable quasi-3D isogeometric approach for free vibration of functionally graded graphene origami-enabled auxetic metamaterial plates submerged in a fluid medium

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 157-176页

作者： Wei CHEN Zhihong TANG Yufen liao Linxin PENG College of Civil Engineering University of South China College of Civil Engineering and Architecture Guangxi University Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education Guangxi University

This paper presents, for the first time, an effective numerical approach based on the isogeometric analysis(IGA) and the six-variable quasi-three dimensional(3D)higher-order shear deformation theory(HSDT) to study the free vibration characteristics of functionally-graded(FG) graphene origami(GOri)-enabled auxetic metamaterial(GOEAM) plates submerged in a fluid medium. The plate theory incorporates the thickness stretching and the effects of transverse shear deformation without using any shear correction factors. The velocity potential function and Bernoulli's equation are used to derive the hydrodynamic pressure acting on the plate surface. Both horizontally and vertically immersed plate configurations are considered here in the form of inertia *** plates are composed of multilayer GOEAMs, with the GOri content varying through the plate's thickness in a layer-wise manner. This design results in graded auxetic *** material properties are evaluated by mixing rules and a genetic programming(GP)-assisted micromechanical model. The governing equations of motion for the FG-GOEAM plates immersed in a fluid medium are derived by Hamilton's principle. After validating the convergence and accuracy of the present model, a comprehensive parametric study is carried out to examine the effects of the GOri content, GOri distribution pattern, GOri folding degree, fluid level, immersed depth, and geometric parameter on the natural frequencies of the FG-GOEAM plates. The results show that the natural frequencies for the four GOri distribution patterns increase with the increase in the layer number when the lay number is fewer than 10, and then stabilize after the layer number reaches ***, in general, the natural frequency of the FG-GOEAM plate in a vacuum or fluid increases when the GOri content increases, while decreases when the GOri folding degree increases. Some additional findings related to the numerical results are presented in the conclusions. It is belie

关键词： Equations of motion

A FIFTH-ORDER ACCURATE WEIGHTED ENN DIFFERENCE SCHEME AND ITS APPLICATIONS

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Journal of Computational Mathematics 2001年第5期19卷 531-538页

作者： Yi-qing Shen Ru-quan Wang hong-zhi liao Department of Mathematics Yunnan UniversityKunming 650091China ICMSEC Academy of Mathematics and Systems SciencesChinese Academy of SciencesBeijing 100080China

Presents a study which constructed a high accurate difference scheme based on the ENN scheme. Overview of ENN scheme and several high order accuracy central schemes; Numerical method used; Relation between the weighte... 详细信息

关键词： ENN scheme WENO scheme shock-boundary-layer interaction

Effects of water level variations on the water quality of Huayang Lakes, China

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Journal of Geographical Sciences 2025年第1期35卷 173-188页

作者： AN Lesheng LIU Chun FAN Zhongya liao Kaihua WANG Wencai WANG Nan School of Resources and Environment Anqing Normal University South China Institute of Environmental Sciences Ministry of Ecology and Environment The Key Laboratory of Watershed Geographic Sciences Nanjing Institute of Geography and LimnologyCAS

To explore water level variations and their dynamic influence on the water quality of Huayang Lakes, the water level from 1967 to 2023 and water quality from 2015 to 2023 were analyzed using the Mann–Kendall trend test, box plots, and violin plots. The results show a notable hydrological rhythm of water level alternation between dry and flood seasons in Huayang Lakes, with an average water level of 12.82 m and a monthly range of 11.21–17.24m. Since 2017, the water level of Huayang Rivers has shown a decreasing trend of –0.02 m/*** phosphorus(TP) has become the primary pollutant. The TP concentrations in Longgan Lake(the largest lake) during the dry, rising, flood, and retreating seasons from 2015 to 2023were 0.083, 0.061, 0.050, and 0.059 mg/L, respectively. The effect of water level on TP was mainly observed during the low-water period. When the water level in the dry season rose to 12.25 and 13.00 m, the percentage of TP exceeding 0.1 mg/L in Longgan Lake decreased to 55.8% and 33.3%, respectively. During the dry season, wind and wave disturbances caused the release of endogenous phosphorus in Huayang Lakes. This led to drastic fluctuations in TP concentration, reducing the correlation between water level and TP. When external control is limited, the water level during the dry season should be maintained between 12.25 and 13.0 m. Additionally, it is necessary to accelerate the restoration of submerged macrophyte species(such as Hydrilla verticillata and Vallisneria natans) in the Huayang Rivers.

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火山构造组合研究和填图方法应用——以西藏措麦—邦多地区火山岩为例

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沉积与特提斯地质 2004年第2期24卷 35-40页

作者：刘庆宏廖思平黄传冠江西省地质调查院江西南昌330201

以 1∶2 5万邦多区幅、措麦区幅火山岩区野外地质调查为基础 ,运用岩石地层火山岩相火山构造法一体化研究思路 ,吸收 2 0世纪 90年代以来国内外对火山学研究的新成果 ,并借鉴 1∶5万区域地质调查中大比例火山地质图编制的经验 ,从... 详细信息

以 1∶2 5万邦多区幅、措麦区幅火山岩区野外地质调查为基础 ,运用岩石地层火山岩相火山构造法一体化研究思路 ,吸收 2 0世纪 90年代以来国内外对火山学研究的新成果 ,并借鉴 1∶5万区域地质调查中大比例火山地质图编制的经验 ,从单个火山机构调查扩展到火山机构组合研究 ,从而填制出火山构造面貌清楚的古火山地质图 ,全面地反映了不同时期 (旋回 )火山作用特点、演化规律及火山岩相的分布特征 ,合理地建立起火山地层层序。

关键词：火山构造组合填图措麦邦多西藏

树脂吸附/气相色谱法测定水中硝基苯类污染物

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水资源保护 2000年第4期16卷 23-26,35页

作者：李青山白焱傅春艳孟庆红松辽流域水资源保护局吉林长春130021

研究了树脂吸附 /气相色谱法同时测定水中 10种硝基苯类污染物的方法。水样流经GDX - 5 0 2树脂富集柱 ,硝基苯类污染物得到吸附富集 ,然后用苯洗脱 ,洗脱液经K -D浓缩器浓缩定容后 ,以带电子捕获检测器的毛细管柱气相色谱测定。讨论了... 详细信息

研究了树脂吸附 /气相色谱法同时测定水中 10种硝基苯类污染物的方法。水样流经GDX - 5 0 2树脂富集柱 ,硝基苯类污染物得到吸附富集 ,然后用苯洗脱 ,洗脱液经K -D浓缩器浓缩定容后 ,以带电子捕获检测器的毛细管柱气相色谱测定。讨论了水样的富集条件、污染物的洗脱条件对测定的影响 ,确定了色谱条件。

关键词：树脂吸附气相色谱硝基苯类水样污染物