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GPIO-Based Continuous Sliding Mode Control for Networked Control Systems Under Communication Delays With Experiments on Servo Motors

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 99-113页

作者： Kamal Rsetam Zhenwei Cao Zhihong Man Xian-ming Zhang the School of Software and Electrical Engineering Swinburne University of Technology the Department of Automated Manufacturing Al Khwarizmi College of Engineering University of Baghdad IEEE

To handle input and output time delays that commonly exist in many networked control systems(NCSs), a new robust continuous sliding mode control(CSMC) scheme is proposed for the output tracking in uncertain single input-single-output(SISO) networked control systems. This scheme consists of three consecutive steps. First, although the network-induced delay in those systems can be effectively handled by using Pade approximation(PA), the unmatched disturbance cames out as another difficulty in the control design. Second, to actively estimate this unmatched disturbance, a generalized proportional integral observer(GPIO) technique is utilized based on only one measured state. Third, by constructing a new sliding manifold with the aid of the estimated unmatched disturbance and states, a GPIO-based CSMC is synthesized, which is employed to cope with not only matched and unmatched disturbances, but also networkinduced delays. The stability of the entire closed-loop system under the proposed GPIO-based CSMC is detailedly *** promising tracking efficiency and feasibility of the proposed control methodology are verified through simulations and experiments on Quanser's servo module for motion control under various test conditions.

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Catalytic Performance of Carbon Smoke over Ag-LSCF Composite Catalysts

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期 30-34页

作者：郭冠伦 HAN ming LU Shaomin YU Jing 鞠洪玲 Hubei Key Laboratory of Advanced Technology for Automotive Components & Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology College of Mechanical and Transportation Southwest Forestry University

To improve the catalytic performance of La0.6Sr0.4Co0.2Fe0.8O3（LSCF） towards carbon soot,we utilized the impregnation method to incorporate Ag into the prepared LSCF *** conducted a series of characterization tests and evaluated the soot catalytic activity of the composite catalyst by comparing it with the LaCoO3group,LaFeO3group,and catalyst-free *** results indicate that the Ag-LSCF composite catalyst exhibits the highest soot catalytic activity,with the characteristic temperature values of 376.3,431.1,and 473.9 ℃ at 10 %,50 %,and 90 % carbon soot conversion,*** values are 24.8,20.2,and 23.1 ℃ lower than those of the LSCF *** also shows that LSCF can improve the catalytic activity of soot after compounding with Ag,and reflects the necessity of using catalysts in soot combustion *** characterization and BET test show that Ag-LSCF has more abundant surface-adsorbed oxygen species,larger specific surface area and pore volume than LSCF,which also proves that Ag-LSCF has higher soot catalytic activity.

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Yield of long-lived fission product transmutation using proton-, deuteron-, and alpha particle-induced spallation

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Nuclear Science and Techniques 2021年第9期32卷 73-83页

作者： meng-Ting Jin Su-Yang Xu Guan-ming Yang Jun Su Sino-French Institute for Nuclear Energy and Technology Sun Yat-sen UniversityZhuhai 519082China

The transmutation of long-lived fission products through spallation induced by light nuclides was investi-gated for the purpose of determining the feasibility of this approach for long-lived fission products,in both economic and environmental *** cross-section data were obtained from the TALYS Evaluated Nuclear Data Library(TENDL).A thick target model was used to study the consumption of the target isotopes in the transmutation *** transmutation yield was calculated using the highest beam intensity available with the China initiative accelerator-driven *** was found that the light nuclide-induced spallation reaction can significantly reduce the radio toxicity of the investigated long-lived fission *** the transmutation target made of elemental LLFP and the proton beam with an intensity of 5 mA,the consumption of 90 Sr,93 Zr,107 Pd,or 137 Cs can reach approximately 500 g per year.

关键词： Transmutation Long-lived fission products Spallation

Transient analysis and optimization of passive residual heat removal heat exchanger in advanced nuclear power plant

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Nuclear Science and Techniques 2022年第8期33卷 147-162页

作者： Yan-Bin Liu Xiang-Yu meng Xue-Sheng Wang Qi-ming Men Yu-Yang Yuan Jia-ming Cao Key Laboratory of Pressure Systems and Safety Ministry of EducationEast China University of Science and TechnologyShanghai 200237China Shanghai Nuclear Engineering Research and Design Institute State Power Investment CorporationShanghai 200233China

The transient performance and optimization of a passive residual heat removal heat exchanger(PRHR HX)were ***,a calculation method was developed for predicting the heat transfer of the PRHR *** calculation results were validated through comparisons with ROSA experimental *** heat-transfer performance of the AP1000 PRHR HX in the initial period was predicted,and it satisfied the design ***,the distributions of the heat flux,tube-inside/outside heattransfer coefficients,and heat load for the AP1000 PRHR HX over 2000 s were ***,an optimization study was conducted by adjusting the horizontal length and tube *** effects on the four main heat-transfer parameters and the heat-transfer area were ***,the influence of the initial in-containment refueling water storage tank(IRWST)temperature was investigated using an established simulation *** results indicated that it significantly affected the trends of the IRWST temperature and reactor outlet ***,the minimum required flow rates over time to maintain the reactor outlet temperature at the safety line were determined for different start-up *** trends of the minimum required flow rate and the peak flow rate were analyzed.

关键词： Heat transfer PRHR HX Transient analysis Optimization investigation

Chondroitinase ABC combined with Schwann cell transplantation enhances restoration of neural connection and functional recovery following acute and chronic spinal cord injury

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Neural Regeneration Research 2025年第5期20卷 1467-1482页

作者： Wenrui Qu Xiangbing Wu Wei Wu Ying Wang Yan Sun Lingxiao Deng Melissa Walker Chen Chen Heqiao Dai Qi Han Ying Ding Yongzhi Xia George Smith Rui Li Nai-Kui Liu Xiao-ming Xu Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteDepartment of Neurological SurgeryIndiana University School of MedicineIndianapolisINUSA Department of Hand Surgery the Second Hospital of Jilin UniversityChangchunJilin ProvinceChina Shriners Hospitals Pediatric Research Center Temple University School of MedicinePhiladelphiaPAUSA Department of Anatomy&Cell Biology Indiana University School of MedicineIndianapolisINUSA

Schwann cell transplantation is considered one of the most promising cell-based therapy to repair injured spinal cord due to its unique growth-promoting and myelin-forming properties.A the Food and Drug Administration-approved Phase I clinical trial has been conducted to evaluate the safety of transplanted human autologous Schwann cells to treat patients with spinal cord injury.A major challenge for Schwann cell transplantation is that grafted Schwann cells are confined within the lesion cavity,and they do not migrate into the host environment due to the inhibitory barrier formed by injury-induced glial scar,thus limiting axonal reentry into the host spinal *** we introduce a combinatorial strategy by suppressing the inhibitory extracellular environment with injection of lentivirus-mediated transfection of chondroitinase ABC gene at the rostral and caudal borders of the lesion site and simultaneously leveraging the repair capacity of transplanted Schwann cells in adult rats following a mid-thoracic contusive spinal cord *** report that when the glial scar was degraded by chondroitinase ABC at the rostral and caudal lesion borders,Schwann cells migrated for considerable distances in both rostral and caudal *** Schwann cell migration led to enhanced axonal regrowth,including the serotonergic and dopaminergic axons originating from supraspinal regions,and promoted recovery of locomotor and urinary bladder ***,the Schwann cell survival and axonal regrowth persisted up to 6 months after the injury,even when treatment was delayed for 3 months to mimic chronic spinal cord *** findings collectively show promising evidence for a combinatorial strategy with chondroitinase ABC and Schwann cells in promoting remodeling and recovery of function following spinal cord injury.

关键词： axonal regrowth bladder function chondroitinase ABC functional recovery glial scar lentivirus migration Schwann cell spinal cord injury transplantation

Increase of photoluminescence blinking frequency of 3C–SiC nanocrystals with excitation power

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Chinese Physics B 2018年第12期27卷 136-140页

作者： Zhixing Gan Weiping Zhou ming meng Center for Quantum Transport and Thermal Energy Science Key Laboratory of Optoelectronic Technology of Jiangsu ProvinceSchool of Physics and Technology Nanjing Normal University School of Science Nanjing University of Science and Technology School of Physics and Telecommunication Engineering Zhoukou Normal University

Super-resolution optical fluctuation imaging is dependent on the blinking frequency of ***,improvement of the photoluminescence(PL)blink frequency is *** is achieved for 3C–SiC nanocrystals(NCs)by simply increasing the excitation *** an excitation of 488 nm with powers of 5μW to 50μW,individual 3C–SiC NC always exhibits PL blinking with a short on-state sojourn time(<0.1 s).A fast Fourier transform method is exploited to determine the PL switching *** is found that the frequency of the bright state increases from 2 Hz to 20 Hz as the excitation power increases from 5μW to 50μW,which is explained by the Auger photonionization model.

关键词： photoluminescence nanocrystals blinking Auger photonionization

Induction of cranial and posterior trunk neural crest by exogenous retinoic acid in zebrafish

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Chinese Science Bulletin 2002年第13期47卷 1105-1108,1146页

作者： ming Li Ying Su Anming meng Tsing Hua Univ Dept Biol Sci & Biotechnol Prot Sci Lab MOE Beijing 100084 Peoples R China

Retinoic acid (RA) plays an important role in development of vertebrate embryos. We demonstrate impacts of exogenous RA on the formation of neural crest cells in zebrafish using specific neural crest markers sox9b and crestin. Treatment with all-trans RA at 10-7 mmol/L at 50% epiboly induces sox9b expression in the forebrain and crestin expression in the forebrain and midbrain, resulting in significant increase of pigment cells in the head derived from the cranial neural crest. In addition, RA treatment induces expression of sox9b and crestin in the caudal marginal cells of the neuroectoderm during early segmentation. Earlier commitment of these cells to the neural crest fate in the posterior margins leads to abnormal development of the posterior body, probably by preventing mingling of ventral derived and dorsal-derived cells during the formation of the tailbud.

关键词： zebrafish retinoic acid neural crest sox9b crestin.

Potential role of Helicobacter pylori infection in nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2013年第41期19卷 7024-7031页

作者： meng Li Zhe Shen You-ming Li Department of Gastroenterology The First Affiliated HospitalZhejiang University School of Medicine

Accumulating evidence has implicated Helicobacter pylori(***)infection in extragastrointestinal diseases,including obesity,type 2 diabetes mellitus,cardiovascular disease,and liver ***,there has been a special focus on *** infection as a risk factor for the development of nonalcoholic fatty liver disease(NAFLD).NAFLD is currently considered to be the most common liver disorder in western countries,and is rapidly becoming a serious threat to public *** mechanisms of pathogenesis underlying NAFLD remain unclear at present and therapeutic options are *** growing awareness of the role of *** in NAFLD is thus important to aid the development of novel intervention and prevention strategies,because the eradication of *** is easy and much less expensive than long-term treatment of the other risk *** infection is involved in the pathogenesis of insulin resistance(IR),which is closely linked with *** provides a new insight into the pathogenesis of *** review probes the possible relationship between *** and NAFLD,from the perspective of the potential mechanism of how *** infection brings about IR and other aspects concerning this correlation.

关键词： Helicobacter pylori Nonalcoholic fatty liver disease Insulin resistance Inflammation Cytokines

Effect of Intensive Greenhouse Vegetable Cultivation on Selenium Availability in Soil

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Pedosphere 2015年第3期25卷 343-350页

作者： FU ming-ming HUANG Biao JIA meng-meng HU Wen-You SUN Wei-Xia D.C.WEINDORF CHANG Qing Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of Sciences University of Chinese Academy of Sciences Department of Plant and Soil Science Texas Tech University Geological Survey of Jiangsu

Soil properties dramatically change after long-term greenhouse vegetable cultivation, which further affects soil selenium （Se） nutritional status and plant Se uptake. An evaluation of Se availability after long-term greenhouse vegetable cultivation （CVC） can help in better understanding its influential factors under GVC conditions and will also facilitate further regulation of soil Se nutrition in GVC systems. Two typical GVC bases were chosen： one with clayey and acidic soil in Nanjing, southern China, and the other with sandy alkaline soil in Shouguang, northern China. Twenty-seven surface soil samples at the Nanjing base and 61 surface soil samples at the Shouguang base were collected according to cultivation duration and cultivation intensity. Soil properties including soil available Se （PO4^3--Se） and total Se （T-Se） were analyzed. The results showed that soil PO4^3--Se was significantly and negatively correlated with soil Olsen-P, available K （A-K）, and electrical conductivity （EC） at the Nanjing base. At the Shouguang base, however, no significant correlation was found between soil PO4^3--Se and Olsen-P and EC, and soil PO4^3--Se increased with increasing soil organic matter （OM）. Intensively utilized greenhouse vegetable cultivation caused significant changes in soil properties and further affected soil Se availability. Due to different management practices, the dominant factors affecting Se availability varied between the two GVC bases. At the Nanjing base, the dominant influential factor on soil Se availability was soil nutritional status, especially Olsen-P and A-K status. At the Shouguang base, where organic fertilizers were applied at high rates, soil OM was the dominant influential factor.

关键词： available Se electrical conductivity Olsen-P soil organic matter soil properties