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Free Boundary Problems with Local-nonlocal Diffusions and Different Free Boundaries Ⅰ: Global Solution

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Acta Mathematica Sinica,English Series 2022年第12期38卷 2265-2284页

作者： Xiu DONG Jian Ping wang ming xin wang School of Mathematics Harbin Institute of TechnologyHarbin 150001P.R.China School of Applied Mathematics Xiamen University of TechnologyXiamen 361024P.R.China School of Mathematics and Information Science Henan Polytechnic UniversityJiaozuo 454000P.R.China

We investigate a class of ecological models with local-nonlocal diffusions and different free *** is PartⅠof a two-part series,in which the existence,uniqueness,regularity and estimates of global solution is *** spreading-vanishing dichotomy,criteria governing spreading and vanishing,long-time behavior of solution and the estimation of the spreading speed when spreading happens will be studied in the separate PartⅡ.

关键词： Local-nonlocal diffusions different free boundaries existence-uniqueness global solution

An online BOF terminal temperature control model based on big data learning

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Journal of Iron and Steel Research(International) 2023年第5期30卷 875-886页

作者： Jia-wei Guo Dong-ping Zhan Guo-cai Xu Nai-hui Yang Bo wang ming-xin wang Geng-wei You School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina Jianlong Acheng Iron&Steel Co. Ltd.Harbin 150000HeilongjiangChina

The development of basic oxygen furnace(BOF)intelligent steelmaking model based on artificial intelligence and big data is the focus of international research and *** the view of the current situation that the BOF cannot continuously detect the composition and molten steel temperature,combined with the monitoring results of the high-definition and high-brightness camera at the converter mouth,an online BOF terminal temperature control model is established based on big data learning case-based reasoning model and expert system *** on-site online operation shows that the model can effectively improve the"flying lance"phenomenon and the splashing condition,the stability and safety of smelting process are better than that of artificial smelting,the"flying lance"rate decreases from 39.2% to 0,the early splashing rate decreases from 21.4% to 13.3% and the late splashing rate decreases from 81.25% to 56.7%.When the temperature fluctuation is controlled at±15 oC,the hit rate of the terminal temperature under the automatic control of the model is 90.91%.

关键词： Basic oxygen furnace Case-based reasoning Expert system Steelmaking Temperature

Arthroscopy with subscapularis upper one-third tenodesis for treatment of recurrent anterior shoulder instability independent of glenoid bone loss

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World Journal of Clinical Cases 2022年第25期10卷 8854-8862页

作者： Bai-Jing An Feng-Lin wang Yao-Ting wang Zhe Zhao ming-xin wang Geng-Yan xing Department of Sports Medicine The Fourth Medical CenterPLA General HospitalBeijing 100048China Department of Clinical Laboratory The Third Medical CenterPLA General HospitalBeijing 100039China Department of Orthopedics The Third Medical CenterPLA General HospitalBeijing 100039China

BACKGROUND Recurrent anterior shoulder instability is a common traumatic injury,the main clinical manifestation of which is recurrent anteroinferior dislocation of the humeral *** current follow-up study showed that the effect of arthroscopic Bankart repair is *** To evaluate the clinical efficacy of arthroscopy with subscapularis upper one-third tenodesis for treatment of anterior shoulder instability,and to develop a method to further improve anterior stability and reduce the recurrence *** Between January 2015 and December 2018,male patients with recurrent anterior shoulder instability were *** hundred and twenty patients had a glenoid defect20%.The average age was 25 years(range,18–45 years).Patients with a glenoid defect20%underwent an arthroscopic iliac crest bone autograft with a subscapularis upper one-third *** patients were assessed with Rowe and Constant *** The average shoulder forward flexion angle was 163.6°±8.3°and 171.8°±3.6°preoperatively and at the last follow-up evaluation,*** average external rotation angle when abduction was 90°was 68.4°±13.6°and 88.5°±6.2°preoperatively and at the last follow-up evaluation,*** mean Rowe scores preoperatively and at the last follow-up evaluation were 32.6±3.2 and 95.2±2.2,respectively(P<0.05).The mean Constant scores preoperatively and at the last follow-up evaluation were 75.4±3.5 and 95.8±3.3,respectively(P<0.05).No postoperative dislocations were recorded by the end of the follow-up *** Arthroscopy with subscapularis upper one-third tenodesis was effective for treatment of recurrent anterior shoulder instability independent of the size of the glenoid bone defect,enhanced anterior stability of the shoulder,and did not affect postoperative range of motion

关键词： Arthroscopy Subscapularis Iliac crest bone autograft Recurrent anterior shoulder instability Glenoid bone loss

Visible Light-Induced[3+2]Annulation Reaction of Alkenes with Vinyl Azides:Direct Synthesis of Functionalized Pyrroles

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Chinese Journal of Chemistry 2024年第2期42卷 151-156页

作者： ming Yang xin-Yu wang Jie wang Yu-Long Zhao Jilin Province Key Laboratory of Organic Functional Molecular Design&Synthesis Faculty of ChemistryNortheast Normal UniversityChangchunJilin 130024China

A photocatalytic[3+2]annulation of alkenes with vinyl azides was developed under irradiation by visible light in the presence of organic dye *** substrate scope and high functional group tolerance were demonstrated by more than 50 *** reaction provides a novel and efficient method for the synthesis of polyfunctionalized pyrroles under very mild metal-free conditions without other additives.

关键词： Photocatalysis Vinyl azides Alkenes Pyrroles Annulation Radical reactions

Comparative study of the clinical efficacy of all-inside and traditional techniques in anterior cruciate ligament reconstruction

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World Journal of Clinical Cases 2023年第14期11卷 3195-3203页

作者： Bai-Jing An Yao-Ting wang Zhe Zhao ming-xin wang Geng-Yan xing Department of Sports Medicine The Fourth Medical Center of PLA General HospitalBeijing 100000China

BACKGROUND Many studies have focused on the femoral tunnel technique and fixation method,but few studies have involved the tibial tunnel technique and fixation *** all-inside technique is one of the new techniques that has been described in recent ***-inside anterior cruciate ligament(ACL)reconstruction is based on a tibial socket instead of a full *** method has many potential *** To compare clinical outcomes of knee ACL autograft reconstruction using allinside quadrupled semitendinosus(AIST)and traditional hamstring tendon(TBT)*** From January 2017 to October 2019,the clinical data of 80 patients with ACL reconstruction were retrospectively analyzed,including 67 males and 13 *** patients had an average age of 24.3±3.1 years(age range:18-33 years).The AIST technique was used in 42 patients and the TBT technique was used in 38 *** time between operation and injury,operative duration,postoperative visual analogue scale(VAS)score and knee functional recovery were recorded and compared between the two *** International Knee Documentation Committee(IKDC)and Lysholm scoring system were used to comprehensively evaluate clinical *** Eighty patients were followed for 24-36 mo,with an average follow-up duration of 27.5±1.8 *** were no significant differences in the time between surgery and injury,operative duration,IKDC and Lysholm scores of the affected knee at the last follow-up evaluation between the two *** were significant differences in VAS scores 1 d,3 d,7 d,2 wk and 1 mo after surgery(P<0.05).There was no significant difference in VAS score at 3 mo,6 mo and 1 year after *** The efficacy of the AIST ACL reconstruction technique was comparable to the TBT technique,but the postoperative pain was less with the AIST ***,the AIST technique is an ideal treatment choice for ACL reconstruction.

关键词： Anterior cruciate ligament reconstruction All-inside quadrupled semitendinosus Clinical curative effect Traditional hamstring tendon Visual analogue scale

Adaptive security control of time-varying constraints nonlinear cyber-physical systems with false data injection attacks

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Journal of Control and Decision 2024年第1期11卷 50-59页

作者： Yue-ming wang Yuan-xin Li Department of Science Liaoning University of TechnologyJinzhouPeople’s Republic of China

In this article,an adaptive security control scheme is presented for cyber-physical systems(CPSs)suffering from false data injection(FDI)attacks and time-varying state ***,an adaptive bound estimation mechanism is introduced in the backstepping control design to mitigate the effect of FDI ***,to solve the unknown sign time-varying statefeedback gains aroused by the FDI attacks,a type of Nussbaum function is employed in the adaptive security ***,by constructing a barrier Lyapunov function,it can be ensured that all signals of controlled system are bounded and the time-varying state constraints are not ***,the provided simulation examples demonstrate the effectiveness of the proposed controller.

关键词： Neural networks backstepping technology false data injection(FDI)attacks nonlinear cyber-physical systems controls

Few-shot working condition recognition of a sucker-rod pumping system based on a 4-dimensional time-frequency signature and meta-learning convolutional shrinkage neural network

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Petroleum Science 2023年第2期20卷 1142-1154页

作者： Yun-Peng He Chuan-Zhi Zang Peng Zeng ming-xin wang Qing-Wei Dong Guang-Xi Wan Xiao-Ting Dong State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyangLiaoning 110016China Key Laboratory of Networked Control Systems Chinese Academy of SciencesShenyangLiaoning 110016China Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyangLiaoning 110169China University of Chinese Academy of Sciences Beijing100049China Shenyang University of Technology ShenyangLiaoning 110870China School of Automation and Electrical Engineering Shenyang Ligong UniversityShenyangLiaoning 110159China

The accurate and intelligent identification of the working conditions of a sucker-rod pumping system is necessary. As onshore oil extraction gradually enters its mid-to late-stage, the cost required to train a deep learning working condition recognition model for pumping wells by obtaining enough new working condition samples is expensive. For the few-shot problem and large calculation issues of new working conditions of oil wells, a working condition recognition method for pumping unit wells based on a 4-dimensional time-frequency signature (4D-TFS) and meta-learning convolutional shrinkage neural network (ML-CSNN) is proposed. First, the measured pumping unit well workup data are converted into 4D-TFS data, and the initial feature extraction task is performed while compressing the data. Subsequently, a convolutional shrinkage neural network (CSNN) with a specific structure that can ablate low-frequency features is designed to extract working conditions features. Finally, a meta-learning fine-tuning framework for learning the network parameters that are susceptible to task changes is merged into the CSNN to solve the few-shot issue. The results of the experiments demonstrate that the trained ML-CSNN has good recognition accuracy and generalization ability for few-shot working condition recognition. More specifically, in the case of lower computational complexity, only few-shot samples are needed to fine-tune the network parameters, and the model can be quickly adapted to new classes of well conditions.

关键词： Few-shot learning Indicator diagram Meta-learning Soft thresholding Sucker-rod pumping system Time–frequency signature Working condition recognition

Photoinduced Dehalocyclization to Access Oxindoles Using Formate as a Reductant

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Chinese Journal of Chemistry 2024年第11期42卷 1203-1208页

作者： Wei Ge Jia-xin wang ming-Chen Fu Yao Fu Hefei National Research Center for Physical Sciences at the Microscale iChEMCAS Key Laboratory of Urban Pollutant ConversionAnhui Province Key Laboratory of Biomass Clean EnergyUniversity of Science and Technology of ChinaHefeiAnhui230026 China Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering Hefei University of TechnologyHefeiAnhui230009 China

Herein,we report an efficient and practical protocol for the photoinduced dehalocyclization of ortho-halophenylacrylamides with formate by the engagement of a CO_(2) radical anion to access substituted *** method proceeds smoothly under mild conditions and exhibits a wide range of substrate as well as remarkable functional group compatibility.

关键词： Formate CO_(2)Radical ions Oxindole Photocatalysts Cyclization Organohalides

TuBG1 promotes hepatocellular carcinoma via ATR/P53-apoptosis and cycling pathways

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Hepatobiliary & Pancreatic Diseases International 2024年第2期23卷 195-209页

作者： Yan Zhang Zhen-Zhen wang An-Qi Han ming-Ya Yang Li-xin Zhu Fa-ming Pan Yong wang Department of General Surgery The Second Hospital of Anhui Medical UniversityHefei 230601China Department of General Surgery The First Affiliated Hospital of Anhui Medical UniversityHefei 230022China Department of Epidemiology and Biostatistics School of Public HealthAnhui Medical UniversityHefei 230032China The Key Laboratory of Major Autoimmune Diseases Anhui Medical UniversityHefei 230032China

Background:As reported,γ-tubulin(TuBG1)is related to the occurrence and development of various types of malignant ***,its role in hepatocellular cancer(HCC)is not *** present study was to investigate the relationship between TuBG1 and clinical parameters and survival in HCC ***:The correlation between TuBG1 and clinical parameters and survival in HCC patients was ex-plored by bioinformatics *** was used for the *** molecular function of TuBG1 was measured using colony formation,scratch assay,trans-well assay and flow *** set enrichment analysis(GSEA)was used to pick up the enriched pathways,followed by investigating the target pathways using Western *** tumor-immune system interactions and drug bank database(TISIDB)was used to evaluate TuBG1 and *** on the TuBG1-related immune genes,a prognostic model was constructed and was further validated internally and ***:The bioinformatic analysis found high expressed TuBG1 in HCC tissue,which was confirmed us-ing immunohistochemistry and Western *** silencing the TuBG1 in HCC cell lines,more G1 arrested cells were found,cell proliferation and invasion were inhibited,and apoptosis was ***,the silence of TuBG1 increased the expressions of Ataxia-Telangiectasia and Rad-3(ATR),phospho-P38 mitogen-activated protein kinase(P-P38MAPK),phospho-P53(P-P53),B-cell lymphoma-2 associated X protein(Bax),cleaved caspase 3 and P21;decreased the expressions of B-cell lymphoma-2(Bcl-2),cyclin D1,cyclin E2,cyclin-dependent kinase 2(CDK2)and *** correlation analysis of immunohistochemistry and clinical parameters and survival data revealed that TuBG1 was negatively corre-lated with the overall *** constructed immune prognosis model could effectively evaluate the ***:The increased expression of TuBG1 in HCC is associated with poor prognosis,which might be involved in the oc

关键词： TuBG1 Hepatocellular carcinoma Apoptosis Cell cycling Immunomodulators