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| 1 | Adaptive Nonsingular Terminal Sliding Mode Control Design for Near Space Hypersonic Vehicles显示文摘This paper presents an adaptive nonsingular terminal sliding mode approach for the attitude control of near space hypersonic vehicles(NSHV) in the presence of parameter uncertainties and external disturbances. Firstly, a novel nonsingular terminal sliding surface is developed and its finitetime convergence is analyzed. Then, an adaptive nonsingular terminal sliding mode control law is proposed, which is chattering free. In the proposed approach, all parameter uncertainties and external disturbances are lumped into one term, which is estimated by an adaptive uncertainty estimation for eliminating the boundary requirement needed in the conventional control design. Subsequently, stability of the closed-loop system is proven based on Lyapunov theory. Finally, the proposed approach is applied to the attitude control design for NSHV. Simulation results show that the proposed approach attains a satisfactory performance in the presence of parameter uncertainties and external disturbances. | Ruimin Zhang Lu Dong Changyin Sun | 2014 | IEEE/CAA Journal of Automatica Sinica2014,1,2: | 4 |
| 2 | Inhibition of the toxic byproduct during photocatalytic NO oxidation via La doping in ZnO显示文摘It is of a great challenge to develop semiconductor photocatalysts with potential possibilities to simultaneously enhance photocatalytic efficiency and inhibit generation of toxic intermediates.In this study,we developed a facile method to induce the La doping and cationic vacancie(V(Zn))on ZnO for the highly efficient complete NO oxidation.The photocatalytic NO removal efficiency increases from 36.2%to 53,6%.Most importantly,a significant suppressed NO2 production also has been realized.According to the DFT calculations,ESR spectra and in situ FTIR spectra,the introduction of La^3+induce the redistribution of charge carriers in La-ZnO,which promote the production of·O2^- and lead to the formation of V(Zn)for the formation of·OH,contributing to the complete oxidation of NO to nitrate.Besides,the conversion pathway of photocatalytic NO oxidation has been elaborated,This work paves a new way to simultaneously realize the photocatalytic pollutants removal and the inhibition of toxic intermediates generation for efficient and safe air purification. | Chaowei Yuan Wen Cui Yanjuan Sun Jiadong Wang Ruimin Chen Jin Zhang Yuxin Zhang Fan Dong | 2020 | Chinese Chemical Letters2020,31,3: | 3 |
| 3 | Pecondi- tioning neuroprotection in global cerebral ischemia involves NMDA receptor-mediated ERK-JNK3 crosstalk 显示文摘 | Zhang Quanguang Wang Ruimin Han Dong | 2009 | Neuro- sci Res2009,63,3: | 1 |
| 4 | Diagnostic accuracy of 320-slice computed tomography angiography for detection of coronary artery stenosis: Meta-analysis显示文摘 | Suhua Li Qiongqiong Ni Huilan Wu Long Peng Ruimin Dong Lin Chen Jinlai Liu | 2013 | International Journal of Cardiology2013,,: | 1 |
| 5 | The octarepeat region of hamster PrP (PrP51-91) enhances the formation of microtubule and antagonize Cu^2+-induced microtubule-disrupting activity显示文摘 | Xiaoli Li Chenfang Dong Song Shi Guirong Wang Yuan Li Xin Wang Qi Shi Chan Tian Ruimin Zhou Chen Gao Xiaoping Dong | 2009 | Acta Biochimica et Biophysica Sinica2009,41,11: | 1 |
| 6 | Stable and Efficient Red Perovskite Light-Emitting Diodes Based on Ca^(2+)-Doped CsPbI_(3) Nanocrystals显示文摘α-CsPbI3 nanocrystals(NCs)with poor stability prevent their wide applications in optoelectronic fields.Ca^(2+)(1.00Å)as a new B-site doping ion can successfully boost CsPbI3 NC performance with both improved phase stability and optoelectronic properties.With a Ca^(2+)/Pb^(2+)ratio of 0.40%,both phase and photoluminescence(PL)stability could be greatly enhanced.Facilitated by increased tolerance factor,the cubic phase of its solid film could be maintained after 58 days in ambient condition or 4 h accelerated aging process at 120℃.The PL stability of its solution could be preserved to 83%after 147 days in ambient condition.Even using UV light to accelerate aging,the T_(50) of PL could boost 1.8-folds as compared to CsPbI_(3) NCs.Because Ca^(2+) doping can dramatically decrease defect densities of films and reduce hole injection barriers,the red light-emitting diodes(LEDs)exhibited about triple enhancement for maximum the external quantum efficiency(EQE)up to 7.8%and 2.2 times enhancement for half-lifetime of LED up to 85 min.We believe it is promising to further explore high-quality CsPbI_(3) NC LEDs via a Ca^(2+)-doping strategy. | Wei Shen Jianbin Zhang Ruimin Dong Yanfeng Chen Liu Yang Shuo Chen Zhan Su Yujun Dai Kun Cao Lihui Liu Shufen Chen Wei Huang | 2022 | Research2022,,1: | 1 |
| 7 | Impacts of Sulfur and Microalgae Co-fertilization on Saline-alkaline Soil of Sunflower Field in Hetao Irrigation District显示文摘[Objectives]To evaluate the impacts of the elemental sulfur(S 0)and micro-algae(MA)co-fertilization on saline-alkaline soil of sunflower field in the Hetao Irrigation District(HID).[Methods]The greenhouse pot experiment was conducted with four treatments:control(CK),single S 0 fertilization(S),single MA fertilization(A),and S 0 and MA co-fertilization(SA)for comparing the selected soil properties and sunflower plant heights and weights in different treatments.[Results]The results showed that the mean soil organic matter(SOM)under the SA(25.08 g/kg)was significantly higher than that for the CK(20.59 g/kg),S(22.47 g/kg),and A(22.95 g/kg).The mean pH under the SA(7.75)was significantly lower than that for the CK(8.14),S(7.82),and A(7.96).The mean soil exchangeable Na+concentration under the SA was significantly lower than that for the S.The mean soil electrical conductivity(EC)under the SA was 9.76%lower than that for the S.The means of Cl-(1.22 g/kg)and SO 2-4(1.90 g/kg)in soil under the SA were lower than that for the S(1.30,2.06 g/kg)and A(1.31,1.97 g/kg),respectively.For plant height 3 at the late stage of plant growth,the mean plant height 3 under the SA(89.00 cm)was higher than that of the CK(69.60 cm)and A(74.33 cm).The total weights of the fresh sunflower heads,fresh stems,and dry seeds under the SA were higher than that for the CK,S,and A.[Conclusions]In conclusion,the S 0 and MA co-fertilization had positive effects on improving saline-alkaline soils,the soil under the S 0 and MA co-fertilization could be better conditions for promoting sunflower growth than that for the S,Z,and CK,and thereby the S 0 and MA co-fertilization could be a new idea to improve saline-alkaline soil in the cold and arid regions. | Ruimin DONG Liming LAI Peng ZHANG Yanxiong ZHAO Yang YANG Haiwei WANG Man WANG Yuelong DONG | 2023 | Asian Agricultural Research2023,15,3: | 0 |
| 8 | Nano-copper ions assembled cellulose-based composite with antibacterial activity for biodegradable personal protective mask显示文摘The current SARS-CoV-2 pandemic has resulted in the widespread use of personal protective equipment,particularly face masks.However,the use of commercial disposable face masks puts great pressure on the environment.In this study,nano-copper ions assembled cotton fabric used in face masks to impart antibacterial activity has been discussed.To produce the nanocomposite,the cotton fabric was modified by sodium chloroacetate after its mercerization,and assembled with bactericidal nano-copper ions(about 10.61 mg·g^(–1))through electrostatic adsorption.It demonstrated excellent antibacterial activity against Staphylococcus aureus and Escherichia coli because the gaps between fibers in the cotton fabric allow the nano-copper ions to be fully released.Moreover,the antibacterial efficiency was maintained even after 50 washing cycles.Furthermore,the face mask constructed with this novel nanocomposite upper layer exhibited a high particle filtration efficiency(96.08%±0.91%)without compromising the air permeability(28.9 min·L^(–1)).This green,economical,facile,and scalable process of depositing nano-copper ions onto modified cotton fibric has great potential to reduce disease transmission,resource consumption,and environmental impact of waste,while also expanding the range of protective fabrics. | Xinyi Shao Jian Wang Zetan Liu Na Hu Ruimin Zhang Cailin Quan Xinjie Yao Cuihua Dong | 2023 | Frontiers of Chemical Science and Engineering2023,17,10: | 0 |
| 9 | Combined Photoredox Catalysis for Value-Added Conversion of Contaminants at Spatially Separated Dual Active Sites显示文摘As 2 indispensable counterparts in one catalysis system,the independent reduction and oxidation reactions require synergetic regulation for cooperatively promoting redox efficiency.Despite the current success in promoting the catalytic efficiency of half reduction or oxidation reactions,the lack of redox integration leads to low energy efficiency and unsatisfied catalytic performance.Here,we exploit an emerging photoredox catalysis system by combining the reactions of nitrate reduction for ammonia synthesis and formaldehyde oxidation for formic acid production,in which superior photoredox efficiency is achieved on the spatially separated dual active sites of Ba single atoms and Ti^(3+).High catalytic redox rates are accomplished for respective ammonia synthesis(31.99±0.79 mmol gcat^(−1) h^(−1))and formic acid production(54.11±1.12 mmol gcat^(−1) h^(−1)),reaching a photoredox apparent quantum efficiency of 10.3%.Then,the critical roles of the spatially separated dual active sites are revealed,where Ba single atoms as the oxidation site using h+and Ti3+as the reduction site using e−are identified,respectively.The efficient photoredox conversion of contaminants is accomplished with environmental importance and competitive economic value.This study also represents a new opportunity to upgrade the conventional half photocatalysis into the complete paradigm for sustainable solar energy utilization. | Jieyuan Li Ruimin Chen Kaiwen Wang Yan Yang Jielin Wang Weiping Yang Shengyao Wang Guidong Yang Fan Dong | 2023 | Research2023,,3: | 0 |
| 10 | Rational Design of LDH/Zn_(2)SnO_(4) Heterostructures for Efficient Mineralization of Toluene Through Boosted Interfacial Charge Separation显示文摘It is crucial to efficiently separate and transport photo-induced charge carriers for the effective implementation of photocatalysis toward environmental remediation.A rational design strategy is proposed to validate such proposition through the construction of an interfacial structure in the form of LDH/Zn_(2)SnO_(4) heterostructures in this research.The interfacial charge transfer on LDH/Zn_(2)SnO_(4) is greatly promoted via the unique charge transfer pathway,as characterized by transient photocurrent responses,X-ray photoelectron spectroscopy,electron paramagnetic resonance spectrum,and photoluminescence analysis.As such,it contributes to the generation of reactive oxygen species(ROS)and the activation of reactants for the mineralization of toluene.According to the in situ DRIFTS spectra analysis,the accumulation of benzoic acid takes place possibly through the partial oxidation of the methyl group on toluene at the interface of the LDH/Zn 2 SnO 4 heterostructure.This process can greatly promote the photocatalytic oxidation of toluene with the enhanced ring-opening efficiency.The LDH/Zn 2 SnO 4 is thus demonstrated as superior photocatalyst against toluene(removal efficiency of 89.5%;mineralization of 83.1%;and quantum efficiency of 4.55×10^(−6) molecules/photon).As such,the performance of this composite far exceeds that of their individual components(e.g.,P25,pure Mg-Al LDH,or Zn_(2)SnO_(4)).This study is expected to offer a new path to the interfacial charge transfer mechanism based on the design of highly efficient photocatalysts for air purification. | Ben Lei Wen Cui Peng Chen Ruimin Chen Yanjuan Sun Ki-Hyun Kim Fan Dong | 2023 | Energy & Environmental Materials2023,6,1: | 0 |
| 11 | Optimal portfolio design of energy storage devices with financial and physical right market显示文摘With the continuous development of the spot market,in the multi-stage power market environment with the day-ahead market and right market,the study associated with the portfolio of energy storage devices requires that attention should be paid to transmission congestion and power congestion.To maximize the profit of energy storage and avoid the imbalance of power supply and consumption and the risk of node price fluctuation caused by transmission congestion,this paper presents a portfolio strategy of energy storage devices with financial/physical contracts.First,the concepts of financial/physical transmission rights and financial/physical storage rights are proposed.Then,the portfolio models of financial contract and physical contract are established with the conditional value-at-risk to measure the risks.Finally,the portfolio models are verified through the test data of the Pennsylvania-New Jersey-Maryland(PJM)electric power spot market,and the comparison between the risk aversion of portfolios based on financial/physical contract with the portfolio of the market without rights.The simulation results show that the portfolio models proposed in this paper can effectively avoid the risk of market price fluctuations. | Puzhe LAN Dong HAN Ruimin ZHANG Xiaoyuan XU Zheng YAN | 2022 | Frontiers in Energy2022,16,1: | 0 |
| 12 | Stable and Efficient Red Perovskite Light-Emitting Diodes Based on Ca^(2+)-Doped CsPbI_(3)Nanocrystals显示文摘α-CsPbI_(3)nanocrystals(NCs)with poor stability prevent their wide applications in optoelectronic fields.Ca^(2+)(1.00Å)as a new B-site doping ion can successfully boost CsPbI_(3)NC performance with both improved phase stability and optoelectronic properties.With a Ca^(2+)/Pb^(2+)ratio of 0.40%,both phase and photoluminescence(PL)stability could be greatly enhanced.Facilitated by increased tolerance factor,the cubic phase of its solid film could be maintained after 58 days in ambient condition or 4 h accelerated aging process at 120℃.The PL stability of its solution could be preserved to 83%after 147 days in ambient condition.Even using UV light to accelerate aging,the T50 of PL could boost 1.8-folds as compared to CsPbI_(3)NCs.Because Ca^(2+)doping can dramatically decrease defect densities of films and reduce hole injection barriers,the red light-emitting diodes(LEDs)exhibited about triple enhancement for maximum the external quantum efficiency(EQE)up to 7.8%and 2.2 times enhancement for half-lifetime of LED up to 85 min.We believe it is promising to further explore high-quality CsPbI_(3)NC LEDs via a Ca^(2+)-doping strategy. | Wei Shen Jianbin Zhang Ruimin Dong Yanfeng Chen Liu Yang Shuo Chen Zhan Su Yujun Dai Kun Cao Lihui Liu Shufen Chen Wei Huang | 2021 | Research2021,,1: | 0 |