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| 1 | THE GROWTH THEOREM FOR STARLIKE MAPPINGS ON BOUNDED STARLIKE CIRCULAR DOMAINS显示文摘The authors obtain the growth and covering theorem for the class of normalized biholomorphic starlike mappings on bounded starlike circular domains.This type of domain discussed is rather general, since the domain must be starlike if there exists a normalized biholomorphic starlike mapping on it. In the unit disc, it is just the famous growth and covering theorem for univalent functions.This theorem successfully realizes the initial idea of H. Cartan about how to extend geometric function theory from one variable to several complex variables. | LIU TAISHUN (Department of Mathematics, University of Science and Technology of China, Hefei 230026, China)REN GUANGBIN (Department of Mathematics, University of Science and Technology of China, Hefei 230026, China) | 1998 | Chinese Annals of Mathematics,Series B1998，19，4： | 39 |
| 2 | From intrinsic dielectric loss to geometry patterns: Dual-principles strategy for ultrabroad band microwave absorption显示文摘As electromagnetic absorbers with wide absorption bandwidth are highly pursued in the cutting-edge electronic and telecommunication industries, the traditional dielectric or magnetic bulky absorbers remain concerns of extending the effective absorption bandwidth. In this work, a dual-principle strategy has been proposed to make a better understanding of the impact of utilizing conductive absorption fillers coupled with implementing artificial structures design on the absorption performance. In the comparison based on the microscopic studies, the carbon nanotubes (CNTs)-based absorbers are confined to narrow operating bandwidth and relatively fixed response frequency range, which can not fulfill the ever-growing demands in the application. With subsequent macroscopic structure design based on the CNTs-based dielectric fillers, the artificial patterns show much more broadened absorption bandwidth, covering the majority of C-band, the whole X-band, and Ku-band, due to the tailored electromagnetic parameters and more reflections and scatterings. The results suggest that the combination of developing microscopic powder/bulky absorbers and macroscopic configuration design will fundamentally extend the effective operating bandwidth of microwave. | Bin Quan Weihua Gu Jiaqi Sheng Xinfeng Lv Yuyi Mao Lie Liu Xiaogu Huang Zongjun Tian Guangbin Ji | 2021 | Nano Research2021，14，5： | 13 |
| 3 | Biomass-Derived Porous Carbon-Based Nanostructures for Microwave Absorption显示文摘Currently,electromagnetic(EM) pollution poses severe complication toward the operation of electronic devices and biological systems.To this end,it is pertinent to develop novel microwave absorbers through compositional and structural design.Porous carbon(PC)materials demonstrate great potential in EM wave absorption due to their ultralow density,large surface area,and excellent dielectric loss ability.However,the large-scale production of PC materials through low-cost and simple synthetic route is a challenge.Deriving PC materials through biomass sources is a sustainable,ubiquitous,and low-cost method,which comes with many desired features,such as hierarchical texture,periodic pattern,and some unique nanoarchitecture.Using the bio-inspired microstructure to manufacture PC materials in mild condition is desirable.In this review,we summarize the EM wave absorption application of biomass-derived PC materials from optimizing structureand designing composition.The corresponding synthetic mechanisms and development prospects are discussed as well.The perspective in this field is given at the end of the article. | Huanqin Zhao Yan Cheng Wei Liu Lieji Yang Baoshan Zhang Luyuan Paul Wang Guangbin Ji Zhichuan J.Xu | 2019 | Nano-Micro Letters2019，11，2： | 12 |
| 4 | Rapid removal of bisphenol A on highly ordered mesoporous carbon显示文摘Bisphenol A (BPA) is of global concern due to its disruption of endocrine systems and ubiquity in the aquatic environment.It is important,therefore,that efforts are made to remove it from the aqueous phase.A novel adsorbent,mesoporous carbon CMK-3,prepared from hexagonal SBA-15 mesoporous silica was studied for BPA removal from aqueous phase,and compared with conventional powdered activated carbon (PAC).Characterization of CMK-3 by transmission electron microscopy (TEM),X-ray diffraction,and nitrogen adsorption indicated that prepared CMK-3 had an ordered mesoporous structure with a high specific surface area of 920 m 2 /g and a pore-size of about 4.9 nm.The adsorption of BPA on CMK-3 followed a pseudo second-order kinetic model.The kinetic constant was 0.00049 g/(mg·min),much higher than the adsorption of BPA on PAC.The adsorption isotherm fitted slightly better with the Freundlich model than the Langmuir model,and adsorption capacity decreased as temperature increased from 10 to 40°C.No significant influence of pH on adsorption was observed at pH 3 to 9;however,adsorption capacity decreased dramatically from pH 9 to 13. | Qian Sui Jun Huang Yousong Liu Xiaofeng Chang Guangbin Ji Shubo Deng Tao Xie Gang Yu | 2011 | Journal of Environmental Sciences2011，23，2： | 8 |
| 5 | Guaranteed Cost Consensus for High-dimensional Multi-agent Systems With Time-varying Delays显示文摘Guaranteed cost consensus analysis and design problems for high-dimensional multi-agent systems with time varying delays are investigated. The idea of guaranteed cost con trol is introduced into consensus problems for high-dimensiona multi-agent systems with time-varying delays, where a cos function is defined based on state errors among neighboring agents and control inputs of all the agents. By the state space decomposition approach and the linear matrix inequality(LMI)sufficient conditions for guaranteed cost consensus and consensu alization are given. Moreover, a guaranteed cost upper bound o the cost function is determined. It should be mentioned that these LMI criteria are dependent on the change rate of time delays and the maximum time delay, the guaranteed cost upper bound is only dependent on the maximum time delay but independen of the Laplacian matrix. Finally, numerical simulations are given to demonstrate theoretical results. | Zhong Wang Ming He Tang Zheng Zhiliang Fan Guangbin Liu | 2018 | IEEE/CAA Journal of Automatica Sinica2018，5，1： | 8 |
| 6 | Effects of Straw Incorporation Methods on Nitrous Oxide and Methane Emissions from a Wheat-Rice Rotation System显示文摘The incorporation of straw with a microbial inoculant(a mixture of bacteria and fungi, designed to accelerate straw decomposition)is being increasingly adopted within the agricultural sector in China. However, its effects on N and C trace gas emissions remain unclear.We conducted a field experiment to investigate the effects of different straw incorporation methods(with and without microbial inoculant) in the wheat season on nitrous oxide(N_2O) and methane(CH_4) emissions from a wheat-rice rotation system in China.The treatments comprised N, P, and K fertilizers only(NPK), NPK plus rice straw(NPKS), NPKS plus Ruilaite microbial inoculant(NPKSR), and NPKS plus Jinkuizi microbial inoculant(NPKSJ). Rice straw incorporation before wheat sowing significantly decreased N_2O emissions during the wheat season and stimulated N_2O and CH_4 emissions during the subsequent rice season. Compared with the NPKS treatment, the NPKSR and NPKSJ treatments decreased N_2O emissions during the wheat season, but had no effect on N_2O or CH_4 emissions during the subsequent rice season. Annually, the two treatments were comparable regarding N_2O emissions.Although the global warming potentials of the NPKSR and NPKSJ treatments were lower than that of the NPKS treatment during the wheat season, no significant differences were observed during the subsequent rice season, or over the entire rotation cycle. The annual greenhouse gas intensity was slightly lower in the NPKSR and NPKSJ treatments than in the NPKS treatment. Overall, these results suggest that the incorporation of rice straw with a microbial inoculant in the wheat season was the best strategy tested for managing straw resources within the wheat-rice rotation system. | LIU Gang MA Jing YANG Yuting YU Haiyang ZHANG Guangbin XU Hua | 2019 | Pedosphere2019，29，2： | 7 |
| 7 | Ultrasonic Nondestructive Signals Processing Based on Matching Pursuit with Gabor Dictionary显示文摘The success of ultrasonic nondestructive testing technology depends not only on the generation and measurement of the desired waveform, but also on the signal processing of the measured waves. The traditional time-domain methods have been partly successful in identifying small cracks, but not so successful in estimating crack size, especially in strong backscattering noise. Sparse signal representation can provide sparse information that represents the signal time-frequency signature, which can also be used in processing ultrasonic nondestructive signals. A novel ultrasonic nondestructive signal processing algorithm based on signal sparse representation is proposed. In order to suppress noise, matching pursuit algorithm with Gabor dictionary is selected as the signal decomposition method. Precise echoes information, such as crack location and size, can be estimated by quantitative analysis with Gabor atom. To verify the performance, the proposed algorithm is applied to computer simulation signal and experimental ultrasonic signals which represent multiple backscattered echoes from a thin metal plate with artificial holes. The results show that this algorithm not only has an excellent performance even when dealing with signals in the presence of strong noise, but also is successful in estimating crack location and size. Moreover, the algorithm can be applied to data compression of ultrasonic nondestructive signal. | GUO Jinku WU Jinying YANG Xiaojun LIU Guangbin | 2011 | Chinese Journal of Mechanical Engineering2011，24，4： | 7 |
| 8 | Consensus of Second-Order Multi-Agent Systems with Time-Varying Delays and Antagonistic Interactions显示文摘This study investigates the consensus problem of second-order multi-agent systems subject to timevarying interval-like delays. The notion of consensus is extended to networks containing antagonistic interactions modeled by negative weights on the communication graph. A unified framework is established to address both the stationary and dynamic consensus issues in sampled-data settings. Using the reciprocally convex approach,a sufficient condition for consensus is derived in terms of matrix inequalities. Numerical examples are provided to illustrate the effectiveness of the proposed result. | Bo Hou Fuchun Sun Hongbo Li Guangbin Liu | 2015 | Tsinghua Science and Technology2015，20，2： | 3 |
| 9 | Limited-Budget Consensus Design and Analysis for Multiagent Systems With Switching Topologies and Intermittent Communications显示文摘This paper investigates limited-budget consensus design and analysis problems of general high-order multiagent systems with intermittent communications and switching topologies.The main contribution of this paper is that the tradeoff design between the energy consumption and the consensus performance can be realized while achieving leaderless or leaderfollowing consensus,under constraints of limited budgets and intermittent communications.Firstly,a new intermittent limitedbudget consensus control protocol with a practical trade-off design index is proposed,where the total budget of the whole multiagent system is limited.Then,leaderless limited-budget consensus design and analysis criteria are derived,in which the matrix variables of linear matrix inequalities are determined according to the total budget and the practical trade-off design parameters.Meanwhile,an explicit formulation of the consensus function is derived to describe the consensus state trajectory of the whole system.Moreover,a new two-stage transformation strategy is utilized for leader-following cases,by which the dynamics decomposition of leaderless and leader-following cases can be converted into a unified framework,and sufficient conditions of the leader-following limited-budget consensus design and analysis are determined via those of the leaderless cases.Finally,numerical simulations are given to illustrate theoretical results. | Le Wang Jianxiang Xi Bo Hou Guangbin Liu | 2021 | IEEE/CAA Journal of Automatica Sinica2021，8，10： | 2 |
| 10 | Ablation of High-Intensity Focused Ultrasound Assisted with SonoVue on Rabbit VX2 Liver Tumors: Sequential Findings with Histopathology, Immunohistochemistry, and Enzyme Histochemistry显示文摘 | Wen Luo Xiaodong Zhou Ming Yu Guangbin He Xiaoying Zheng Qiuyang Li Qing Liu Zenghui Han Jun Zhang Yunqiu Qian | 2009 | Annals of Surgical Oncology2009，，8： | 2 |
| 11 | Degradation data-driven approach for remaining useful life estimation显示文摘Remaining useful life(RUL) estimation is termed as one of the key issues in prognostics and health management (PHM).To achieve RUL estimation for individual equipment,we present a degradation data-driven RUL estimation approach under the collaboration between Bayesian updating and expectation maximization(EM) algorithm.Firstly,we utilize an exponential-like degradation model to describe equipment degradation process and update stochastic parameters in the model via Bayesian approach. Based on the Bayesian updating results,both probability distribution of the RUL and its point estimation can be derived. Secondly,based on the monitored degradation data to date,we give a parameter estimation approach for non-stochastic parameters in the degradation model and prove that the obtained estimation is unique and optimal in each iteration.Finally,a numerical example and a practical case study for global positioning system (GPS) receiver are provided to show that the presented approach can model degradation process and achieve RUL estimation effectively and generate better results than a previously reported approach in literature. | Zhiliang Fan Guangbin Liu Xiaosheng Si Qi Zhang Qinghua Zhang | 2013 | Journal of Systems Engineering and Electronics2013，24，1： | 2 |
| 12 | Growth theorem of convex mappings on bounded convex circular domains显示文摘 | Taishun Liu Guangbin Ren | 1998 | Science in China Series A: Mathematics1998，，2： | 1 |
| 13 | A novel square root cubature Kalman filter using model-enhanced Gaussian process state-space models显示文摘 | He Zhikun Liu Guangbin Zhao Xijing | 2012 | Journal of Theoretical and Applied Information Technology2012，45，2： | 1 |
| 14 | Development of generator for voltage dips, short interruptions and voltage variations immunity test 显示文摘 | Zhiyong Yu Guangbin Liu Hong Wu | 2002 | IEEEin proc2002，，5： | 1 |
| 15 | Simulation and experiment research on wide ranging working process of scroll expander driven by compressed air显示文摘 | Liu Guangbin Zhao Yuanyang Li Liansheng | 2010 | Applied Thermal Engineering2010，30，1415： | 1 |
| 16 | Simulation and experiment research on wide ranging working process of scroll expander driven by compressed air显示文摘 | Liu Guangbin Zhao Yuanyang Li Liansheng Shu Pengcheng | 2010 | Applied Thermal Engineering2010，，14： | 1 |
| 17 | Synthesis and photocatalytic activity of graphene/BiOBr composites under visible light显示文摘 | Xingmiao Zhang Xiaofeng Chang M.A. Gondal Bin Zhang Yousong Liu Guangbin Ji | 2012 | Applied Surface Science2012，，20： | 1 |
| 18 | Carbon isotope fractionation during CH_4 transport in paddy fields显示文摘In this study,to further promote the application of the stable carbon isotope natural abundance(SCINA)method to the study of CH4in paddy fields in China,field experiments were carried out to investigate carbon isotope fractionation during CH4transport in both rice-and non-rice-growing seasons.More importantly,two new methods for the measurement of the CH4transport fractionation factor(εtransport)in paddy fields were introduced.The results indicated that the closed chamber+syringe method was much better for the determination ofεtransport during the non-rice-growing season.Presently,εtransport was calculated using theδ13C value of the CH4emitted from a rice field minus that of the CH4in the floodwater(–6.7‰to–3.0‰).In addition,there were three methods available for estimatingεtransport during the rice-growing season:deduction of theδ13C value of the CH4in the floodwater from that of the CH4emitted from the field(–16.6‰to–15.2‰);deduction of theδ13C value of the CH4in the soil pore water from that of the CH4emitted from the field(–13.2‰to–1.1‰);and deduction of theδ13C value of the CH4in the aerenchyma of plants from that of the CH4emitted from plants(–16.3‰to–10.9‰).Unfortunately,the first two methods showed relatively large uncertainties.Only the last one,the dividing+cutting method,was not only scientific and reliable but also provided accurate measurements. | ZHANG GuangBin JI Yang LIU Gang MA Jing XU Hua | 2014 | Science China Earth Sciences2014，57，7： | 1 |
| 19 | Si - doped mesoporous TiO2 continuous fibers : Preparation by centrifugal spinning and photoeatalytic properties显示文摘 | Nan Bao Zhentao Wei Zhihui Ma Feng Liu Guangbin Yin | 2010 | Journal of Hazardous Ma- terials2010，，174： | 1 |
| 20 | Effect of Feeding Strategies on Molecular Responses of Biotransformation Genes in Crassostrea gigas Exposed to Cadmium显示文摘Heavy metals, including cadmium (Cd), are widespread pollutants of great environmental concern because of their ac- cumulation and toxicity. Environmental conditions can affect the accumulation and elimination of Cd in organisms. The aim of this study is to understand the respective responses of metallothioneins (MTs), P-glycoprotein (P-gp), and heat shock protein 70 (hsp70) genes in the mantle and digestive gland of the oyster Crassostrea gigas exposed to 10 g L 1 Cd for 28 days, followed by a depura- tion period of 35 days under different feeding strategies. The MT expression in the digestive gland was higher than in mantle, and was induced in a fluctuating pattern throughout the time of the whole experiment when the oyster was exposed to Cd. The results indicated an enhanced MT activity is required for Cd detoxification. Expression levels of P-gp in the mantle of Cd-exposed oysters fed with algae increased in the first two weeks of the accumulation phase. Then the induction weakened, but the expression still in- creased significantly compared with the control group fed without algae. The P-gp levels in the digestive gland were under-regulated during both the contamination and decontamination periods except in the group fed with Dicrateria inornata at day 0.083. The in- duction of P-gp is possibly related to the important role of pumping Cd out of the cell, while a major implication of P-gp expression inhibition would be a disruption of the protein synthesis. Hsp70 expression exhibited an overall decreasing trend. The highest relative hsp70 inhibition occurred during day 42 to day 63, with approximately 4-fold and 10-fold lower hsp70 levels as compared to the C.gigas feeding with no algae in the mantle and digestive gland, respectively. The induction of hsp70 may be explained by the re- folding of protein in presence of Cd, followed by the inhibition of hsp70 when the protein synthesis was disrupted. | SUN Ming LIU Guangbin LIN Hong ZHANG Tianwen GUO Wen | 2019 | Journal of Ocean University of China2019，18，4： | 1 |
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