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arXiv 2025年

作者： Zhang, Zejia Yang, Bo Chen, Xinxing Shi, Weizhuang Wang, Haoyuan Luo, Wei Huang, Jian Hubei Key Laboratory of Brain-Inspired Intelligent Systems Huazhong University of Science and Technology Wuhan430074 China Key Laboratory of the Ministry of Education for Image Processing and Intelligent Control School of Artificial Intelligence and Automation Huazhong University of Science and Technology Wuhan430074 China State key laboratory of intelligent vehicle safety technology chongqing changan automobile co ltd Chongqing400023 China Science and technology innovation center China ship development and design centre Wuhan430060 China

A promising effective human-robot interaction in assistive robotic systems is gaze-based control. However, current gaze-based assistive systems mainly help users with basic grasping actions, offering limited support. Moreover, the restricted intent recognition capability constrains the assistive system’s ability to provide diverse assistance functions. In this paper, we propose an open implicit intention recognition framework powered by Large Language Model (LLM) and Vision Foundation Model (VFM), which can process gaze input and recognize user intents that are not confined to predefined or specific scenarios. Furthermore, we implement a gaze-driven LLM-enhanced assistive robot system (MindEye-OmniAssist) that recognizes user’s intentions through gaze and assists in completing task. To achieve this, the system utilizes open vocabulary object detector, intention recognition network and LLM to infer their full intentions. By integrating eye movement feedback and LLM, it generates action sequences to assist the user in completing tasks. Real-world experiments have been conducted for assistive tasks, and the system achieved an overall success rate of 41/55 across various undefined tasks. Preliminary results show that the proposed method holds the potential to provide a more user-friendly human-computer interaction interface and significantly enhance the versatility and effectiveness of assistive systems by supporting more complex and diverse task. Copyright © 2025, The Authors. All rights reserved.

关键词： Eye movements

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Graphene-Diyne-Supported Single Transition Metal Atom Catalysts for Co₂ Capture and Co₂ Hydrogenation Conversion

SSRN

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SSRN 2025年

作者： Zhang, Runze Niu, Xiaowei Chen, Zhen Ding, Juan Wang, Chengxin Tang, Yixuan Hou, Yongxia Huang, Jiayi Wang, Yun College of Environment Liaoning Province Pollution Environmental Remediation Technology Innovation Center Liaoning Key Laboratory of Clean Energy and Carron-Neutral Technology Shenyang University Shenyang110044 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China Jiaxing Nanhu University School of Mechanical and Electrical Engineering Zhejiang314001 China Shenyang University China

The rising concentration of carbon dioxide (CO₂), a significant greenhouse gas, demands efficient strategies for its capture and conversion into valuable chemicals. Traditional catalysts face challenges like low efficiency and poor selectivity in CO₂ reduction reactions (CO₂RR). This study uses first-principles calculations to explore graphene-diyne (GDY) supported single-atom transition metal catalysts (Ni, Fe, Mo, Ru) for CO₂ capture and hydrogenation. The results show that Ru@GDY demonstrates the highest catalytic activity with strong CO₂ adsorption energy (-0.82 eV) and efficient pathways for producing methane (CH₄) and methanol (CH₃OH). Mo and Fe also exhibit stable structures and significant potential for CO₂ activation. Analysis of bandgap tuning, charge transfer, and reaction intermediates (*HCO, *COH) reveals how metal-carbon bonding enhances catalyst performance. This research advances the understanding of single-atom catalysts and provides insights for designing efficient systems for CO₂ capture and conversion, contributing to sustainable energy solutions © 2025, The Authors. All rights reserved.

关键词： Hydrogenation

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Experimental Investigation of the Effect of the Material Damage Induced in Sheet Metal Forming Process on the Service Performance of 22MnB5 Steel

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Chinese Journal of Mechanical Engineering 2016年第4期29卷 747-755页

作者： ZHUANG Weimin XIE Dongxuan CHEN Yanhong State Key Laboratory of Automotive Simulation and Control Jilin University Department of Aeronautics Imperial College

The use of ultra-high strength steels through sheet metal forming process offers a practical solution to the lightweight design of ***,sheet metal forming process not only produces desirable changes in material properties but also causes material damage that may adversely influence the service performance of the material ***,an investigation is conducted to experimentally quantify such influence for a commonly used steel（the 22MnB5 steel） based on the hot and cold forming *** each process,a number of samples are used to conduct a uniaxial tensile test to simulate the forming *** that,some of the samples are trimmed into a standard shape and then uniaxially extended until fracture to simulate the service ***,a microstructure test is conducted to analyze the microdefects of the remaining *** on the results of the first two tests,the effect of material damage on the service performance of 22MnB5 steel is *** is found that the material damages of both the hot and cold forming processes cause reductions in the service performance,such as the failure strain,the ultimate stress,the capacity of energy absorption and the ratio of residual *** reductions are generally lower and non-linear in the former process but higher and linear in the latter ***,it is found from the microstructure analysis that the difference in the reductions of the service performance of 22MnB5 by the two forming processes is driven by the difference in the micro damage mechanisms of the two *** findings of this research provide a useful reference in terms of the selection of sheet metal forming processes and the determination of forming parameters for 22MnB5.

关键词： material damage sheet metal forming ultra-high strength steel 22MnB5 steel

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Grey Relational Analysis Coupled with Principal Component Analysis Method For Optimization Design of Novel Crash Box Structure

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Journal of Beijing Institute of Technology 2019年第3期28卷 577-584页

作者： Shuang Wang Dengfeng Wang State Key Laboratory of Automotive Simulation and Control Jilin University

Crashworthiness and lightweight optimization design of the crash box are studied in this paper. For the initial model, a physical test was performed to verify the model. Then, a parametric model using mesh morphing technology is used to optimize and decrease the maximum collision force (MCF) and increase specific energy absorption (SEA) while ensure mass is not increased. Because MCF and SEA are two conflicting objectives, grey relational analysis (GRA) and principal component analysis (PCA) are employed for design optimization of the crash box. Furthermore, multi-objective analysis can convert to a single objective using the grey relational grade (GRG) simultaneously, hence, the proposed method can obtain the optimal combination of design parameters for the crash box. It can be concluded that the proposed method decreases the MCF and weight to 16.7% and 29.4% respectively, while increasing SEA to 16.4%. Meanwhile, the proposed method in comparison to the conventional NSGA-Ⅱ method, reduces the time cost by 103%. Hence, the proposed method can be properly applied to the optimization of the crash box.

关键词： crash box optimization maximum collision force (MCF) specific energy absorption (SEA) grey relational analysis (GRA) principal component analysis (PCA)

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Occurrence of antibiotic resistance genes and bacterial pathogens in water and sediment in urban recreational water

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Journal of Environmental Sciences 2019年第3期31卷 65-74页

作者： Peiyan Dong Qijia Cui Tingting Fang Yong Huang Hui Wang State Key Joint Laboratory on Environment Simulation and Pollution Control School of Environment Tsinghua University

The emergence and prevalence of antibiotic resistance genes(ARGs) and pathogens in the environment are serious global health concern. However, information about the occurrence of ARGs and pathogens in recreational water is still limited. Accordingly, we investigated the occurrence of six ARGs and human pathogens in three recreational lakes, and the correlations between ARGs and one mobile genetic element(intI1) were analyzed. The quantitative PCR results showed that the concentration of ARGs ranged from 4.58 × 10~0 to 5.0 × 10~5 copies/mL in water and from 5.78 × 10~3 to 5.89 × 10~8 copies/g dry weight(dw)in sediment. Sul1 exhibited the highest level among the five quantifiable ARGs. The concentrations of sul1, bla_(-TEM), and tetX exhibited significant positive correlations with intI1(p < 0.05), indicating that intI1 may be involved in their proliferation. The detection frequencies of ARGs ranged from 75%–10~0%, indicating the prevalence of these risks in this region. The concentration of Escherichia coli, Aeromonas spp., Mycobacterium avium,Pseudomonas aeruginosa, and Salmonella enterica ranged from 10~3 to 10~5 copies/10~0 mL in water and 10~4–10~6 copies/g dw in sediment. In total, 25% of the samples harbored all pathogen genes, indicating the prevalence of these pathogens in recreational ***, the next-generation sequencing results showed that 68 genera of pathogens were present, among which Aeromonas, Mycobacterium, and Pseudomonas were the dominant ones in this region, posing a considerable potential health risk to public health. Overall, the widespread distribution of ARGs and pathogens underscores the need to better monitor and mitigate their propagation in recreational lakes and the associated risks to human health.

关键词： Recreational water ARGs Class 1 integron Pathogen diversity and concentration

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Analysis of hydrocarbon emissions from gasoline engines based on spearman correlation and three⁃dimensional numerical calculation of combustion

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Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) 2025年第3期55卷 829-838页

作者： Zhao, Hui-Chao Liu, Yao-Dong Liu, Ming-Li Gong, Yan-Feng Li, Xian Zhao, Chuan Sun, Ping R&D Institute China FAW Group Co. Ltd. Changchun130013 China State Key Laboratory of Automotive Simulation and Control Jilin University Changchun130022 China

Firstly，Spearman correlation analysis was used to design the characteristic parameters based on face-to-volume ratio，face-to-face ratio，side clearance and back clearance volumes，firepower shore volume，cylinder gasket dead zone volume，clearance volume，and the proportion of each volume，and investigate their effects on hydrocarbon emissions under cold start conditions. Then，the effect was explained from the viewpoint of combustion chamber geometry and combustion process by using combustion 3D simulation. The results show that the clearance volume and clearance volume proportion have the strongest correlation with cold start hydrocarbon emissions， and the other characteristic parameters have very little correlation with cold start hydrocarbon emissions. Meanwhile，Spearman correlation coefficient rs and one-tailed test P-value of clearance volume proportion are 0.753 8 and © 2025 Editorial Board of Jilin University. All rights reserved.

关键词： Combustion chambers

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The performance of a combined nitritation–anammox reactor treating anaerobic digestion supernatant under various C/N ratios

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Journal of Environmental Sciences 2015年第4期27卷 207-214页

作者： Jian Zhao Jiane Zuo Jia Lin Peng Li State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University

A combined nitritation–anammox reactor was developed to treat the digestion supernatant under various C/N ratios. Due to the difficulties for heterotroph to utilize the refractory organics, the reactor presented relatively stable performance with increasing supernatant addition. Nevertheless, the adverse effects of supernatant would accumulate during the long-term operation and thus weakened the activity and shock resistance of microbes,which further led to the gradual decrease of reactor performance after 92 days＇ *** this circumstance, supernatant with volatile fatty acids（VFAs） residuals was further introduced into the reactor to investigate the performance of combined nitritation–anammox process with VFA addition. With the appearance of VFAs, the nitrogen removal performance gradually restored and the reactor finally achieved stable and efficient performance with C/N ratio of 0.35. The VFA residuals within 150 mg/L in the supernatant served as the extra electron donors and stimulated the heterotrophic denitrification process, which was vital for the enhancement of reactor. The nitrogen removal rate and total nitrogen removal efficiency reached 0.49 kg N/（m^3·day） and 88.8% after 140 days＇ operation, respectively. The combined nitritation–anammox reactor was proved suitable to treat digestion supernatant.

关键词： Combined nitritation–anammox Anaerobic digestion supernatant C/N ratios Volatile fatty acids

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Mesoporous silicas synthesis and application for lignin peroxidase immobilization by covalent binding method

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Journal of Environmental Sciences 2013年第1期25卷 181-187页

作者： Zunfang Hu Longqian Xu Xianghua Wen Environmental Simulation and Pollution Control State Key Joint Laboratory School of EnvironmentTsinghua University

Immobilization of enzymes on mesoporous silicas （MS） allows for good reusability. MS with two-dimensional hexagonal pores in diameter up to 14.13 nm were synthesized using Pluronic P123 as template and 1,3,5-triisopropylbenzene as a swelling agent in acetate buffer. The surface of MS was modified by the silanization reagents 3-aminopropyltriethoxysilane. Lignin peroxidase （LIP） was successfully immobilized on the modified MS through covalent binding method by four agents： glutaraldehyde, 1,4- phenylene diisothiocyanate, cyanotic chloride and water-soluble carbodiimide. Results showed that cyanotic chloride provided the best performance for LiP immobilization. The loaded protein concentration was 12.15 mg/g and the immobilized LiP activity was 812.9 U/L. Immobilized LiP had better pH stability. Acid Orange II was used to examine the reusability of immobilized LiP, showing more than 50% of the dye was decolorized at the fifth cycle.

关键词： mesoporous silica lignin peroxidase covalent binding stability

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Structural Topology and Dynamic Response Analysis of an Electric Torque Vectoring Drive-Axle for Electric Vehicles

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Automotive Innovation 2022年第2期5卷 164-179页

作者： Junnian Wang Shoulin Gao Yue Qiang Meng Xu Changyang Guan Zidong Zhou State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchunChina

In-wheel motor-drive electric vehicles have the advantage of independently controllable wheel torque and the disadvantages of unsprung mass rise and power *** address the disadvantages,a centralized layout electric torque vectoring drive-axle system(E-TVDS)with dual motors is proposed,which can realize arbitrary distribution of driving torque between the left and right ***,the speed and torque distribution principle of E-TVDS based on velocity diagram are analyzed,and a virtual prototype of the whole vehicle with basic gear ratio relation model of the E-TVDS is built for simulation to verify the theoretical results and the basic effect of E-TVDS on the steering performance of the ***,the charac-teristics of 36 types of the novel E-TVDS topology structure are compared and analyzed,and the optimal structure scheme is ***,the accurate multiple degrees of freedom dynamic model for the optimal structure is established by using the bond graph method,and its dynamic response characteristics are *** results show that the vehicle equipped with the proposed E-TVDS can distribute the driving torque with the almost identical amount but opposite sign between the left and right wheels in any direction,and varying amount according to different chassis dynamics control requirements,and the torque response performance is great with little delay and *** function and dynamic response of the proposed E-TVDS show that it has potential application value for various performance improvements of electric vehicles.

关键词： Electric vehicle Torque vectoring Differential Structural topology Bond graph

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Performance Evaluation Method for Automated Driving System in Logical Scenario

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Automotive Innovation 2022年第3期5卷 299-310页

作者： Peixing Zhang Bing Zhu Jian Zhao Tianxin Fan Yuhang Sun State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchunChina

With the continuous improvement of automated driving technology,how to evaluate the performance of an automated driving system is attracting more and more ***,with the creation of scenario-based test methods,the traditional evaluation index based on a single test can no longer meet the requirements of high-level safety verification for automated driving system,and the performance evaluation of such a system in logical scenarios will be the *** on the scenario-based test method and Turing test theory,a performance evaluation method for an automated driving system in the whole parameter space of a logical scenario is *** logical scenario parameter space is partitioned according to the risk degree of concrete scenario,and the evaluation process in different zones are ***,the anthropo-morphic index in the safe zone and the collision-avoidance index in the danger zone are defined by comparing test results of human driving and ideal vehicle *** front vehicle low-speed and cut-out scenarios as examples,two automated driving algorithms are tested in the virtual environment,and the test results are evaluated both by the proposed method and by human *** results show that the results of the proposed method are consistent with the subjective feelings of humans;additionally,it can be applied to scenario-based tests and the verification process of an automated driving system.

关键词： Automated driving system Logical scenario Performance evaluation Anthropomorphic index

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