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From waste to wealth:Coal tar residue derived carbon materials as low-cost anodes for potassium-ion batteries

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 464-475页

作者： Zhonghua Lu Jun shen Xin Zhang Lingcong Chao Liang Chen Ding Zhang Tao Wei Shoudong Xu College of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024China College of Chemistry Taiyuan University of TechnologyTaiyuan 030024China School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430205China School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China

Carbon materials are widely recognized as highly promising electrode materials for various energy storage system *** tar residues(CTR),as a type of carbon-rich solid waste with high value-added utilization,are crucially important for the development of a more sustainable *** this study,we employed a straightforward direct carbonization method within the temperature range of 700-1000℃to convert the worthless solid waste CTR into economically valuable carbon materials as anodes for potassium-ion batteries(PIBs).The effect of carbonization temperature on the microstructure and the potassium ions storage properties of CTR-derived carbons(CTRCs)were systematically explored by structural and morphological characterization,alongside electrochemical performances *** on the co-regulation between the turbine layers,crystal structure,pore structure,functional groups,and electrical conductivity of CTR-derived carbon carbonized at 900℃(CTRC-900H),the electrode material with high reversible capacity of 265.6m Ah·g^(-1)at 50 m A·g^(-1),a desirable cycling stability with 93.8%capacity retention even after 100 cycles,and the remarkable rate performance for PIBs were ***,cyclic voltammetry(CV)at different scan rates and galvanostatic intermittent titration technique(GITT)have been employed to explore the potassium ions storage mechanism and electrochemical kinetics of *** indicate that the electrode behavior is predominantly governed by surface-induced capacitive processes,particularly under high current densities,with the potassium storage mechanism characterized by an“adsorption-weak intercalation”*** work highlights the potential of CTR-based carbon as a promising electrode material category suitable for high-performance PIBs electrodes,while also provides valuable insights into the new avenues for the high value-added utilization of CTR.

关键词： coal tar residue carbon materials anode potassium-ion batteries high value-added

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Delay-dependent Robust Stability Analysis of Power Systems with PID Controller

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Chinese Journal of Electrical Engineering 2019年第2期5卷 79-86页

作者： Li shen Huiqin xiao School of Electrical and Information Engineering Hunan University of TechnologyZhuzhou 412007China

This study examines the robust stability of a power system,which is based on proportional-integral-derivative load frequency control and involves uncertain parameters and time *** model of the system is firstly established,following which the system is transformed into a closed-loop system with feedback *** this basis,a new augmented Lyapunov-Krasovskii(LK)functional is established for using the new Bessel-Legendre inequality to estimate the derivative of the functional,which can provide a maximum lower bound.A stability criterion is then derived by employing the LK functional and Bessel-Legendre ***,numerical examples are used to demonstrate the validity and superiority of the proposed method.

关键词： Power systems time delay systems load frequency control PID control robust stability

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Damage assessment for seismic response of recycled concrete filled steel tube columns

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Earthquake Engineering and Engineering Vibration 2016年第3期15卷 607-616页

作者： Huang Yijie xiao Jianzhuang shen Luming Department of Structural Engineering Tongji University Department of Civil Engineering Shandong University of Science and Technology School of Civil Engineering University of Sydney

A model for evaluating structural damage of recycled aggregate concrete filled steel tube （RCFST） columns under seismic effects is proposed in this paper. The proposed model takes the lateral deformation and the effect of repeated cyclic loading into account. Available test results were collected and utilized to calibrate the parameters of the proposed model. A seismic test for six RCFST columns was also performed to validate the proposed damage assessment model. The main test parameters were the recycled coarse aggregate （RCA） replacement percentage and the bond-slip property. The test results indicated that the seismic performance of the RCFST member depends on the RCA contents and their damage index increases as the RCA replacement percentage increases. It is also indicated that the damage degree of RCFST changes with the variation of the RCA replacement percentage. Finally, comparisons between the RCA contents, lateral deformation ratio and damage degree were implemented. It is suggested that an improvement procedure should be implemented in order to compensate for the performance difference between the RCFST and normal concrete filled steel tubes （CFST）.

关键词： recycled aggregate concrete (RAC) recycled concrete filled steel tube (RCFST) column seismicperformance damage assessment model (DAM)

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An algorithm for identifying symmetric variables based on the order eigenvalue matrix

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Frontiers of Information Technology & Electronic Engineering 2017年第10期18卷 1644-1653页

作者： xiao-hua LI Ji-zhong shen Campus Information Center Zhejiang University Hangzhou 310027 China College of lnformation Science & Electronic Engineering Zhejiang University Hangzhou 310027 China

To simplify the process for identifying 12 types of symmetric variables in Boolean functions, we propose a new symmetry detection algorithm based on minterm expansion or the truth table. First, the order eigenvalue matrix based on a truth table is defined according to the symmetry definition of a logic variable. By analyzing the constraint conditions of the order eigenvalue matrix for 12 types of symmetric variables, an algorithm is proposed for identifying symmetric variables of the Boolean function. This algorithm can be applied to identify the symmetric variables of Boolean functions with or without don't-care terms. The proposed method avoids the restriction by the number of logic variables of the graphical method, spectral coefficient methods, and AND-XOR expansion coefficient methods, and solves the problem of completeness in the fast computation method. The algorithm has been implemented in C language and tested on MCNC91 benchmarks. The application results show that, compared with the traditional methods, the new algorithm is an optimal detection method in terms of the applicability of the number of logic variables, the Boolean function including don't-care terms, detection type, and complexity of the identification process.

关键词： Boolean function Symmetric variable Boolean logic algebra system Order eigenvalue matrix Truth table

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Transcriptome characterization and SSR discovery in Squaliobarbus curriculus

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Journal of Oceanology and Limnology 2019年第1期37卷 235-244页

作者： LI Caijuan teng teng shen Fanfan GUO Jinqiang CHEN Yining ZHU Chuankun LING Qufei School of Biology and Basic Medical Sciences Soochow University School of Life Science Huaiyin Normal University

Squaliobarbus curriculus is a eurythermic ?sh found mainly in East Asia. The natural germplasm resources of this species, an organism of potential economic aquacultural importance, have recently been threatened by over?shing and habitat degradation. The objective of this study was to obtain functional genomic resources and candidate microsatellite markers for future genetic observation and germplasm protection of S. curriculus. Illumina paired-end sequencing generated over 22.20 million clean reads, which were assembled into 204 027 transcripts with an average length of 1 457 bp. A total of 112 570 protein-coding sequences(55.17%) were predicted, 111 934 of which had signi?cant matches in the NCBI nonredundant protein database. Overall, 60 450, 34 830, and 77 755 transcripts were assigned to Gene Ontology, Clusters of Orthologous Groups, and Eukaryotic Orthologous Groups categories, *** addition, 44 781 transcripts(21.95%) were mapped to 230 KEGG pathways. A total of 51 426 candidate simple sequence repeat(SSR) markers were identi?ed and used to design 36 149 PCR primer pairs. Fifty of these primer pairs were randomly selected for PCR validation in 32 S. curriculus specimens, which resulted in 25 pairs yielding the expected products. Further analysis revealed that 40%(10) of the 25 ampli?ed loci were polymorphic. The transcriptomic pro?le and SSR repertoire obtained in this study should facilitate population genetic studies and germplasm resource protection of S. curriculus.

关键词： Squaliobarbus curriculus transcriptome sequencing SSR markers

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Characterization of micro-arc ceramic coatings on Ti-2Al-2.5Zr alloy substrates

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Rare Metals 2007年第5期26卷 414-419页

作者： HE xiao WU Jihong shen Liru Department of Applied Physics University of Electronic Science and Technology of China Chengdu 610054 China Southwestern Institute of Physics Chengdu 610041 China

Titanium oxide coatings were synthesized on Ti-2Al-2.5Zr alloy substrates by micro-arc oxidation （MAO） technique. The surface features of the coatings were studied by scanning electron microscopy. The micro-arc discharge channels of the Ti-2Al-2.5Zr alloy decrease while the discharge channel size increases clearly with an increase in treating time. With an increase of the coating thickness the porous layer thickness increases apparently. Phase composition of the surface layers of the coatings was evaluated by X-ray diffraction and X-ray photoelectron spectroscopy. The results of XRD and XPS analysis show that the MAO coating mainly consists of anatase and rutile TiO2.

关键词： micro-arc oxidation Ti-2Al-2.5Zr alloy scanning electron microscopy photoelectron spectroscopy X-ray diffraction

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Comparisons of some difference forms for compressible flow in cylindrical geometry on arbitrary Lagrangian and Eulerian framework

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Applied Mathematics and Mechanics(English Edition) 2016年第11期37卷 1571-1586页

作者： Zhijun shen xiao LI Jian REN Institute of Applied Physics and Computational Mathematics Beijing 100088China Center for Applied Physics and Technology Peking UniversityBeijing 100071China Graduate School Chinese Academy of Engineering PhysicsBeijing 100088China

The study of cylindrically symmetric compressible fluid is interesting from both theoretical and numerical points of view. In this paper, the typical spherical sym- metry properties of the numerical schemes are discussed, and an area weighted scheme is extended from a Lagrangian method to an arbitrary Lagrangian and Eulerian （ALE） method. Numerical results are presented to compare three discrete configurations, i.e., the control volume scheme, the area weighted scheme, and the plane scheme with the addition of a geometrical source. The fact that the singularity arises from the geometri- cal source term in the plane scheme is illustrated. A suggestion for choosing the discrete formulation is given when the strong shock wave problems are simulated.

关键词： arbitrary Lagrangian and Eulerian (ALE) cylindrical geometry symmetrypreservation unstructured grid

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Bioinspired and biomimetic membranes for water purification and chemical separation: A review

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Frontiers of Environmental Science & Engineering 2021年第6期15卷 141-173页

作者： Elham Abaie Limeimei Xu Yue-xiao shen Department of Construction Civil and Environmental EngineeringTexas Tech UniversityLubbockTX 79409USA

Bioinspired and biomimetic membranes that contain biological transport channels or attain their structural designs from biological systems have been through a remarkable development over the last two *** take advantage of the exceptional transport properties of those channels,thus possess both high permeability and selectivity,and have emerged as a promising solution to existing *** the discovery of biological water channel proteins aquaporins(AQPs),extensive efforts have been made to utilize them to make separation membranes–AQP-based membranes,which have been *** exploration of AQPs’unique structures and transport properties has resulted in the evolution of biomimetic separation materials from protein-based to artificial channelbased ***,large-scale,defect-free biomimetic membranes are not available *** paper reviews the state-of-the-art biomimetic membranes and summarizes the latest research progress,platform,and *** it critically discusses the potential routes of this emerging area toward scalable *** conclude that an appropriate combination of bioinspired concepts and molecular engineering with mature polymer industry may lead to scalable polymeric membranes with intrinsic selective channels,which will gain the merit of both desired selectivity and scalability.

关键词： Aquaporins Artificial water channels Biomimetic membranes Chemical separation and water purification

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Inhibiting ceramide synthase 5 expression in microglia decreases neuroinflammation after spinal cord injury

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Neural Regeneration Research 2025年第10期20卷 2955-2968页

作者： Wei Zhang Yubao Lu Ruoqi shen Yingjie Wu Chenrui Liu Xingxing Fang Liangming Zhang Bin Liu Limin Rong Department of Spine Surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina National Medical Products Administration(NMPA)Key Laboratory for Quality Research and Evaluation of Cell Products GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina

Microglia,the resident monocyte of the central nervous system,play a crucial role in the response to spinal cord ***,the precise mechanism remains *** investigate the molecular mechanisms by which microglia regulate the neuroinflammatory response to spinal cord injury,we performed single-cell RNA sequencing dataset analysis,focusing on changes in microglial *** found that the MG1 subpopulation emerged in the acute/subacute phase of spinal cord injury and expressed genes related to cell pyroptosis,sphingomyelin metabolism,and neuroinflammation at high ***,we established a mouse model of contusive injury and performed intrathecal injection of siRNA and molecular inhibitors to validate the role of ceramide synthase 5 in the neuroinflammatory responses and pyroptosis after spinal cord ***,we established a PC12-BV2 cell co-culture system and found that ceramide synthase 5 and pyroptosis-associated proteins were highly expressed to induce the apoptosis of neuron *** ceramide synthase 5 expression in a mouse model of spinal cord injury effectively reduced ***,ceramide synthase 5-induced pyroptosis was dependent on activation of the NLRP3 signaling *** ceramide synthase 5 expression in microglia in vivo reduced neuronal apoptosis and promoted recovery of neurological ***2g7 formed a“bridge”between sphingolipid metabolism and ceramide synthase 5-mediated cell death by inhibiting the NLRP3 signaling ***,these findings suggest that inhibiting ceramide synthase 5 expression in microglia after spinal cord injury effectively suppressed microglial pyroptosis mediated by NLRP3,thereby exerting neuroprotective effects.

关键词： ceramide synthase 5 gasdermin D microglia neuroinflammation NLRP3 nuclear factor kappa B Pla2g7 pyroptosis sphingomyelin metabolism spinal cord injury

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Space-based information service in Internet Plus Era

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Science China(Information Sciences) 2017年第10期60卷 229-238页

作者： Deren LI Xin shen Nengcheng CHEN Zhifeng xiao State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan University

"Internet Plus" represents a new form of society that provides a vast platform for reform, innovation,and development. Given the continued integration of the Internet in many fields, Internet Plus is profoundly transforming and influencing a variety of traditional industries. Internet Plus has created conditions favorable for the transformation of earth observation and satellite navigation into an intelligent and real-time geospatial information service. The authors propose that in order to implement continuous, all-weather, all-terrain services for the specific purposes of each individual, it will be necessary to overcome the flaws in existing space-based information systems, such as limited regional coverage, slow response, and weak interoperability. Furthermore, to meet the Big Data Era’s geospatial information service requirements, an "Internet Plus Space-Based Information Service" system, intrinsically linked to ground Internet networks, will have to be constructed. With reference to the developments of aerospace information technology, this paper discusses three levels of the proposed structure of the Internet Plus space-based information service system and ideas for its implementation. Finally,in recognition of the demands facing the Internet Plus space-based information service system, the prospects for geomatics and important supporting technologies are examined.

关键词： Internet Plus space-based information service space information network satellite remote sensing satellite navigation satellite communication

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