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| 1 | Decentralized backstepping adaptive output tracking of large-scale stochastic nonlinear systems显示文摘The problem of decentralized adaptive output tracking control of a class of interconnected stochastic nonlinear systems is considered. In the control design, decentralized state observers and backstepping techniques are applied. To eliminate the influences of interactions with other subsystems, a differentiable function is employed. It is shown that the designed local adaptive controllers can ensure that all the signals in the closedloop system are bounded in probability. Furthermore, the tracking errors can be limited to a small residual set around the origin in the fourth moment sense and can be adjusted by choosing suitable design parameters. | Yongfeng GAO Ximing SUN Wei WANG | 2017 | Science China(Information Sciences)2017，60，12： | 3 |
| 2 | Tranexamic acid for acute intracerebral haemorrhage growth based on imaging assessment (TRAIGE): a multicentre, randomised, placebo- controlled trial显示文摘Background Studies show tranexamic acid can reduce the risk of death and early neurological deterioration after intracranial haemorrhage.We aimed to assess whether tranexamic acid reduces haematoma expansion and improves outcome in intracerebral haemorrhage patients susceptible to haemorrhage expansion.Methods We did a prospective,double-blind,randomised,placebo-controlled trial at 10 stroke centres in China.Acute supratentorial intracerebral haemorrhage patients were eligible if they had indication of haemorrhage expansion on admission imaging(eg,spot sign,black hole sign or blend sign),and were treatable within 8 hours of symptom onset.Patients were randomly assigned(1:1)to receive either tranexamic acid or a matching placebo.The primary outcome was intracerebral haematoma growth(>33% relative or>6 mL absolute)at 24 hours.Clinical outcomes were assessed at 90 days.Results Of the 171 included patients,124(72.5%)were male,and the mean age was 55.9±11.6 years.89 patients received tranexamic acid and 82 received placebo.The primary outcome did not differ significantly between the groups:36(40.4%)patients in the tranexamic acid group and 34(41.5%)patients in the placebo group had intracranial haemorrhage growth(OR 0.96,95% CI 0.52 to 1.77,p=0.89).The proportion of death was lower in the tranexamic acid treatment group than placebo group(8.1%vs 10.0%),but there were no significant differences in secondary outcomes including absolute intracranial haemorrhage growth,death and dependency.Conclusions Among patients susceptible to haemorrhage expansion treated within 8 hours of stroke onset,tranexamic acid did not significantly prevent intracerebral haemorrhage growth.Larger studies are needed to assess safety and efficacy of tranexamic acid in intracerebral haemorrhage patients. | Jingyi Liu Ximing Nie Hongqiu Gu Qi Zhou Haixin Sun Ying Tan Dacheng Liu Lina Zheng Jiahui Zhao Yan Wang Yibin Cao Haomeng Zhu Yunpeng Zhang Lijin Yi Yuehua Pu Miao Wen Zhonghua Yang Shengjun Sun Wenzhi Wang Xingquan Zhao Liping Liu Yongjun Wang | 2021 | Stroke & Vascular Neurology2021，6，2： | 3 |
| 3 | Adaptive modification of turbofan engine nonlinear model based on LSTM neural networks and hybrid optimization method显示文摘An accurate and reliable turbofan engine model which can describe its dynamic behavior within the full flight envelop and lifecycle plays a critical role in performance optimization, controller design and fault diagnosis. However, due to the performance differences caused by the tolerance of engine manufacturing and assembly, and performance degradation during continuously stringent environmental regulations, the model accuracy is severely reduced. In this paper, an adaptive modification method of turbofan engine nonlinear Component-Llevel Model(CLM) based on Long Short-Term Memory(LSTM) Neural Network(NN) and hybrid optimization algorithm is pro-posed. First, a dynamic compensator with a combined LSTM NN architecture is constructed to compensate for the initial error between the experimental data and CLM of a turbofan engine under health condition. Then, a sensitivity analysis approach based on the entropy coefficient and technique for order preference by similarity to an ideal solution integrated evaluation is developed to choose the unmeasurable health parameters to be adjusted. Finally, a parallel hybrid optimization algorithm is developed to complete the adaptive model modification when the performance degrades. The proposed method is verified on a military low-bypass twin-spool turbofan engine, and the experimental results show the effectiveness of the proposed method. | Yanhua MA Xian DU Ximing SUN | 2022 | Chinese Journal of Aeronautics2022，35，9： | 3 |
| 4 | Low-overpotential electrochemical ammonia synthesis using BiOCl-modified 2D titanium carbide MXene显示文摘Electrochemical synthesis of ammonia has the advantages of low energy consumption and promising environmental protection,as compared to the traditional Haber-Bosch process.However,the commercial utilization of this novel system is limited by the low Faradaic efficiency,poor ammonia yield and high overpotential due to the strong NN bond and the dominant competing reaction of hydrogen evolution reaction(HER).Herein,a BiOCl-modified two-dimensional(2D)titanium carbide MXenes nanocomposite(BiOCl@Ti_(3)C_(2)T_(x))is proposed as a promising electrocatalyst for ambient nitrogen(N_(2))reduction reaction with excellent catalytic performance and superior long-term stability at low overpotential.In 0.1 mol/L HCl,this catalyst attains a high Faradic efficiency of 11.98%and a NH_(3)yield of 4.06μg h^(-1)cm^(-2)at-0.10 V(vs.RHE),benefiting from its strong interaction of Bi 6p band with the N 2p orbitals,combined with its large specific surface area and the facile electron transfer. | Yu Wang Munkhbayar Batmunkh Hui Mao Hui Li Baohua Jia Shuyao Wu Daliang Liu Ximing Song Ying Sun Tianyi Ma | 2022 | Chinese Chemical Letters2022，33，1： | 2 |
| 5 | Haemostatic therapy in spontaneous intracerebral haemorrhage patients with high-risk of haematoma expansion by CT marker: a systematic review and meta- analysis of randomised trials显示文摘Background and purpose Current randomised controlled trials(RCTs)showed an uncertain benefit of haemostatic therapy on preventing haematoma expansion and improving the outcome in patients with intracerebral haemorrhage(ICH).This meta-analysis aims to systematically evaluate the effect of haemostatic agents on the prevention of haemorrhage growth in patients with high-risk spontaneous ICH predicted by CT signs in RCTs.Methods A comprehensive search of PubMed,EMBASE and Cochrane library from 1 January 2005 to 30 June 2021 was conducted.RCTs that compared haemostatic agents with placebo for the treatment of spontaneous patients with ICH with high-risk haemorrhage growth were included.The primary endpoint was haematoma expansion at 24 hours.Other major endpoints of interest included 90-day functional outcome and mortality.Results The meta-analysis included four RCTs that randomised 2666 patients with ICH with high-risk haemorrhage growth.Haemostatic therapy reduced the rate of haematoma expansion at a marginally statistically significant level when compared with placebo(OR 0.84;95% CI 0.70 to 1.00;p=0.051).Subgroup analysis for patients with black hole sign on CT revealed a significant reduction of haematoma expansion with haemostatic therapy(OR 0.61;95% CI 0.39 to 0.94;p=0.03).However,both the primary analysis and subgroup analyses showed that haemostatic therapy could not reduce the rate of poor functional outcome(modified Rankin Scale>3)or death.Conclusions Haemostatic therapy showed a marginally significant benefit in reducing early haematoma expansion in patients with high-risk spontaneous ICH predicted by markers on CT scan.However,no significant improvement in functional outcome or reduction of mortality was observed. | Ximing Nie Jingyi Liu Dacheng Liu Qi Zhou Wanying Duan Yuehua Pu Zhonghua Yang Miao Wen Haixin Sun Wenzhi Wang Shengjun Sun Hongqiu Gu Liping Liu | 2021 | Stroke & Vascular Neurology2021，6，2： | 2 |
| 6 | An Additive Hazards Model for Clustered Recurrent Gap Times显示文摘 | KANG Fangyuan SUN Liuquan CHENG Ximing | 2018 | Journal of Systems Science & Complexity2018，31，5： | 2 |
| 7 | High-efficiency Extraction of Bitumen from Oil Sands Using Mixture of Ionic Liquid [Emim][BF_(4)] and Dichloromethane显示文摘An ionic liquid(IL),1-ethyl-3-methyl imidazolium tetrafluoroborate([Emim][BF_(4)]),was used to enhance bitumen recovery from oil sands by dichloromethane solvent extraction.A multiphase system could be formed by simply mixing the components at ambient temperature,consisting of sands and clays,mixtures of ionic liquid and dichloromethane,and concentrated bitumen layer.The results demonstrated that[Emim][BF_(4)]increased the bitumen recovery up to 92%.Much less clay fines were found in the recovered bitumen than those formed by using dichloromethane solvent extraction alone,and the dichloromethane residue was not detected in the spent sands.We proposed that[Emim][BF_(4)]had an ability to reduce the adhesion of bitumen to sand,resulting in an improved separation efficiency.Furthermore,[Emim][BF_(4)]could facilitate the transfer of the extracted bitumen to the surface interface,and then the bitumen was auto-partitioned to a separate immiscible phase for ease of harvesting.This technology circumvented the issue of high consumption of distillation energy due to separation of bitumen phase and low boiling point of dichloromethane.[Emim][BF_(4)]and dichloromethane could be readily recycled through the system and used repeatedly.After ten cycles,the bitumen recovery remained above 88%.Initial scale-up work suggested that this approach would form the basis for a viable large-scale process. | Sun Yinlu Sun Yizhuo Jia Yushan Yuan Wei Song Ximing | 2021 | China Petroleum Processing & Petrochemical Technology2021，23，2： | 2 |
| 8 | The effects of sulfate reducing bacteria on corrosion of carbon steel Q235 under simulated disbonded coating by using electrochemical impedance spectroscopy显示文摘 | Jin Xu Kaixiong Wang Cheng Sun Fuhui Wang Ximing Li Jiaxing Yang Changkun Yu | 2011 | Corrosion Science2011，，4： | 2 |
| 9 | Trans-cinnamaldehyde promotes nitric oxide release via the protein kinase-B/v-Akt murine thymoma viral oncogene-endothelial nitric oxide synthase pathway to alleviate hypertension in SHR.Cg-Lepr^(cp)/NDmcr rats显示文摘OBJECTIVE:To evaluate whether endothelial dysfunction and hypertension are prevented by trans-cinnamaldehyde(t CA) through the activation of endothelial nitric oxide synthase(e NOS).METHODS:Human umbilical vein endothelial cells(HUVECs) were cultured in vitro and stimulated with t CA to determine cell viability using the methyl thiazolyl tetrazolium assay.The effect of t CA on nitric oxide(NO) production was determined by diaminofluorescein-dyes in the absence or presence of inhibitors of e NOS,AMPK,PKA,and AKT.The effect of t CA on blood pressure was determined by the tail-cuff method in obesity spontaneous hypertension(SHR.Cg-Leprcp/NDmcr) rats.The phosphorylation of e NOS and protein expression of the insulin-signaling pathway(Ins R-IRS1-PI3 K-AKT)were measured by western blot.RESULTS:t CA at concentrations less than 100 μM did not affect cell viability in cultured HUVECs.Stimulation with t CA promoted NO release in a time-dependent manner compared with the control group.t CA-treated HUVECs also significantly increased AKT-Ser473 and e NOS-Ser1177 phosphorylation.In SHR-CP rats,treatment with t CA at a dose of 40 mg/kg/day for 6 weeks markedly reduced the systolic blood pressure and diastolic blood pressure,increased the phosphorylation of AKT and e NOS,and increased urinary nitric oxidation.CONCLUSION:t CA attenuated endothelial dysfunction and reduced blood pressure in SHR-CP rats.The underlying mechanisms may involve the increase in AKT and e NOS phosphorylation and the release of e NOS-derived NO. | Zhang Lu Wu Lili Liu Ximing Yoshitomi Hisae Ikeda Katsumi Negishi Hiroko Pan Yajing Sun Wen Qin Lingling Li Juan-E Xu Tunhai Liu Tonghua Gao Ming | 2018 | Journal of Traditional Chinese Medicine2018，38，4： | 2 |
| 10 | A study on the synthesis and application of an inverse emulsion of amphoteric polyacrylamide as a retention aid in papermaking 显示文摘 | Lu Shaojie Liu Ruixian Sun Ximing | 2002 | Journal of Applied Polymer Science2002，84，2： | 1 |
| 11 | Stability analysis for linear switched systems with time-varying delay显示文摘 | SUN Ximing WANG Feng LIU Guoping | 2008 | IEEE Trans Syst Man Cybern B2008，38，2： | 1 |
| 12 | Road Surface Iden- tification Approach Based On Vehicle Dynamic Parame- ters显示文摘 | Wang Bo Sun Renyun Liu Ximing | | Applied Mechanics and Materialsvols0，47，： | 1 |
| 13 | Stability and L2 gain analysis for switched delay systems:a delay-dependent method显示文摘 | SUN Ximing ZHAO Jun HILLB D J | 2006 | Automatica2006，42，10： | 1 |
| 14 | Study on enterprise's technological innovation ability index based on complexity analysis 显示文摘 | Sun Ximing Zhang Jinglong | 2002 | USA-China Business Review2002，2，3： | 1 |
| 15 | Cyclooxygenase-2 overpression reduces apoptotic susceptibility by inhibiting the cytochrome c-dependent apoptotic pathway in human colon cancercells显示文摘 | Yunjie Sun Ximing Tang Elizabeth Half | 2002 | Cancer Res2002，62，： | 1 |
| 16 | The effects of sulfate reducing bacteria on corrosion of carbon steel Q235 under simulated disbonded coating by using electrochemical impedance spectroscopy显示文摘 | Jin Xu Kaixiong Wang Cheng Sun Fuhui Wang Ximing Li Jiaxing Yang Changkun Yu | 2011 | Corrosion Science2011，，4： | 1 |
| 17 | Genetic algorithm- based optimum vehicle suspension design using mini- mum dynamic pavement load as a design criterion 显示文摘 | Sun Lu Cai Ximing Yang Jun | 2007 | Journal of Sound and Vibration2007，301，： | 1 |
| 18 | Stability and L2-gain analysis for switched delay systems: a delay-dependent method 显示文摘 | Sun Ximing Zhao Jun Hill D J | 2006 | Automatica2006，42，： | 1 |
| 19 | Industrial and aggregate measures of productivity growth in China,1982-2000显示文摘 | CAO J HO M S JORGENSON DALE W RUOEN REN SUN LINLIN YUE XIMING | 2009 | Review of Income and Wealth2009，55，1： | 1 |
| 20 | Study on Enterprise's Technological innovation Ability Index Based onComplexity Analysis显示文摘 | Sun Ximing Zhang Jinlong | 2002 | USA -China Business Review2002，，3： | 1 |
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