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Age Structure of Two Species of Odorous Frogs(Odorrana margaretae and Odorrana grahami)

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Asian Herpetological Research 2021年第3期12卷 308-314页

作者： LIANJU YUAN MAOJUN ZHONG wenbo LIAO Key Laboratory of Southwest China Wildlife Resources Conservation(Ministry of Education) China West Normal UniversityNanchong 637009SichuanChina Key Laboratory of Artificial Propagation and Utilization in Anurans of Nanchong City China West Normal UniversityNanchong 637009SichuanChina Institute of Eco-adaptation in Amphibians and Reptiles China West Normal UniversityNanchong 637009SichuanChina

Variation in age structure and body size benefits are identified to understand the evolution of life ***,we estimated the age structure and body size of two species of odorous frogs(Odorrana margaretae and Odorrana grahami)by using *** ages at sexual maturity of *** and *** in both sexes were 1 and 2 years,*** both sexes,the maximum age observed in *** was six *** ***,the maximum age observed in males and females were 4 and 5 years,*** and females did not differ in mean age in the two *** average body size of both species considerably differed between sexes,with females being larger than *** body size of females was also larger than that of males when the effect of age was *** also found positive correlations between body size and age within each sex in ***,but only for female in *** female-biased sexual size dimorphism of the two species suggested that fecundity selection for larger female size may increase the reproductive output.

关键词： age structure body size odorous frogs skeletochronology

Development of CASRock for modeling multi-fracture interactions in rocks under hydro-mechanical conditions

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第11期16卷 4399-4415页

作者： wenbo Hou Pengzhi Pan Zhaofeng Wang State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China University of Chinese Academy of Sciences Beijing100049China

The interaction between multiple fractures is important in the analysis of rock fracture propagation,fracture network evolution and stability and integrity of rocks under hydro-mechanical(HM)coupling *** present,modeling the mechanical behavior of multiple fractures is still *** the condition of multiple fractures,the opening,closing,sliding,propagation and penetration of fractures become more *** order to simulate the HM coupling behavior of multi-fracture system,the paper presents a novel numerical scheme,including mesh reconstruction and topology generation algorithm,to efficiently and accurately represent fractures and their propagation process,and a potential function-based algorithm to address contact *** fracture contact algorithm does not need to set contact pairs and thus is suitable for complex contact situations from small to large deformations induced by HM *** topology of fracture interfaces is constructed by the dynamic adding algorithm,which makes the mesh reconstruction more rapid in the modeling of fracturing process,especially in the case of multiple fractures *** numerical scheme is implemented in CASRock,a self-developed numerical code,to simulate the propagation process of rock fractures and the interaction of multiple fractures under the condition of HM *** verify the suitability of the code,a series of tests were *** code was then applied to simulate hydraulic fracture propagation and fracture interactions caused by fluid *** ability of this method to study fracture propagation,multi-fracture interaction and fracture network evolution under hydro-mechanical coupling conditions is demonstrated.

关键词： CASRock Multi-fracture interaction Hydro-mechanical(HM)coupling Efficient grid reconstruction and topology generation Distributed contact computation

Deep Reinforcement Learning-Based Collaborative Routing Algorithm for Clustered MANETs

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China Communications 2023年第3期20卷 185-200页

作者： Zexu Li Yong Li wenbo Wang China Telecom Research Institute Beijing 102209China Key Laboratory of Universal Wireless Communications Beijing University of Posts and TelecommunicationsBeijing 100876China

Flexible adaptation to differentiated quality of service(QoS)is quite important for future 6G network with a variety of *** ad hoc networks(MANETs)are able to provide flexible communication services to users through self-configuration and rapid ***,the dynamic wireless environment,the limited resources,and complex QoS requirements have presented great challenges for network routing *** by the development of artificial intelligence,a deep reinforcement learning-based collaborative routing(DRLCR)algorithm is *** routing policy and subchannel allocation are considered jointly,aiming at minimizing the end-to-end(E2E)delay and improving the network *** sufficient training by the cluster head node,the Q-network can be synchronized to each member node to select the next hop based on local ***,we improve the performance of training by considering historical observations,which can improve the adaptability of routing policies to dynamic *** results show that the proposed DRLCR algorithm outperforms other algorithms in terms of resource utilization and E2E delay by optimizing network load to avoid *** addition,the effectiveness of the routing policy in a dynamic environment is verified.

关键词： artificial intelligence deep reinforcement learning collaborative routing MANETs 6G

TNF-αresponsive DNA star trigon formation from four hairpin probes and the analytical application

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Science China Chemistry 2017年第3期60卷 405-409页

作者： wenbo Cheng Wei Yan Peng Miao State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering Institute of Optics and ElectronicsChinese Academy of SciencesChengdu 610209China CAS Key Laboratory of Bio-Medical Diagnostics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of SciencesSuzhou 215163China University of Chinese Academy of Sciences Beijing 100049China

Tumor necrosis factor-alpha(TNF-α) is a type of critical pro-inflammatory cytokines,which participates in numerous cellular signal pathways and is regarded as a critical protein biomarker for inflammatory based *** this contribution,we have developed a strategy to fabricate multiple DNA star trigon structures with fluorescence signals from four hairpin probes which are detonated by a single molecule of TNF-α.This process causes significant enhancement of fluorescence and a sensitive and selective biosensor for TNF-α assay is *** method is able to achieve the limit of detection(LOD) at 5 pg/mL(0.285 pM).Moreover,some other advantages such as fast response,high selectivity and convenient operation promise the potential use of this method for TNF-α measurement in point of care testing *** further development,this strategy can also be converted to detect other analytes such as small molecules,nucleic acids and other proteins.

关键词： TNF-α DNA star trigon strand displacement biosensors signal amplification

Alternative lead-free mixed-valence double perovskites for high-efficiency photovoltaic applications

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Journal of Energy Chemistry 2023年第9期84卷 347-353页

作者： wenbo Li Yuheng Li Zilong Zhang Peng Gao CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina Laboratory for Advanced Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstituteChinese Academy of SciencesXiamen 361021FujianChina University of Chinese Academy of Sciences Beijing 100049China

Lead-based organic-inorganic hybrid perovskites have exhibited great potential in photovoltaics,achieving power conversion efficiencies(PCEs) exceeding 25%.However,the toxicity of lead and the instability of these materials under moist conditions pose significant barriers to large-scale *** overcome these limitations,researchers have proposed mixed-valence double perovskites,where Cs_(2)Au~ⅠAu~ⅢI_6 is a particularly effective absorber due to its suitable band gap and high absorptance *** further extend the scope of these lead-free materials,we varied the trivalent gold ion and halogen anion in Cs_(2)Au~ⅠAu~ⅢI_6,resulting in 18 new structures with unique ***,using first-principles calculations and elimination criteria,we identified four materials with ideal band gaps,small effective carrier mass,and strong anisotropic optical *** to theoretical modeling,Cs_(2)AuSbCl_6,Cs_(2)AuInCl_6,and Cs_(2)AuBiCl_6 are potential candidates for solar cell absorbers,with a spectroscopic limited maximum efficiency(SLME) of approximately 30% in a 0.25 μm-thick *** three compounds have not been previously reported,and therefore,our work provides new insights into potential materials for solar energy *** aim for this theoretical exploration of novel perovskites to guide future experiments and accelerate the development of high-performance photovoltaic devices.

关键词： Mixed valence double perovskite Theoretical calculation Electronic configuration Photovoltaic performance

Controllable Synthesis of Au NRs and Its Flexible SERS Optical Fiber Probe with High Sensitivity

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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 7-16页

作者：熊文豪 WANG wenbo LONG Yuting 李宏 State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China National 111 Research Center Microelectronics and Integrated Circuits School of ScienceHubei University of TechnologyWuhan 430068China

The surface-enhanced Raman scattering(SERS) optical fiber probes were successfully prepared by self-assembling on polyelectrolyte multilayers. Gold nanorods(Au NRs) were used as SERS enhancement material to give excellent biological affinity and stability to the SERS optical fiber probes. Au NRs were synthesized by seed growth method. The synergistic effect between AgNO_(3) and surfactant was investigated, and the highest yield was found when AgNO_(3) was 500 uL. Meanwhile, different SERS optical fiber probes were obtained by selecting silane coupling agent, polyelectrolyte multilayer and graphene oxide(GO) to treat quartz fiber. It was found that the SERS optical fiber probes obtained by the self-assembled on polyelectrolyte multilayers method performed better than those by other methods. In addition, Mapping was combined with finite element simulation to analyze the electromagnetic field distribution at the fiber end *** electromagnetic field distribution of Au NRs was investigated, the difference of electromagnetic field intensity around the Au NRs with different arrangements was compared, the strongest signal was obtained when the Au NRs were head-to-head. Finally, sensitivity of the optimized SERS optical fiber probes could reach 10^(-9)mol/L, with excellent stability and repeatability.

关键词： surface-enhanced Raman scattering(SERS) optical fiber probe gold nanorods(Au NRs) polyelectrolyte multilayers controllable synthesis

Discrete memristive neuron model and its interspike interval-encoded application in image encryption

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Science China(Technological Sciences) 2021年第10期64卷 2281-2291页

作者： BAO Han HUA ZhongYun LIU wenbo BAO BoCheng College of Automation Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China School of Computer Science and Technology Harbin Institute of TechnologyShenzhenShenzhen 518055China School of Microelectronics and Control Engineering Changzhou UniversityChangzhou 213164China

Bursting is a diverse and common phenomenon in neuronal activation patterns and it indicates that fast action voltage spiking periods are followed by resting *** interspike interval(ISI)is the time between successive action voltage spikes of neuron and it is a key indicator used to characterize the ***,a three-dimensional memristive Hindmarsh-Rose(mHR)neuron model was constructed to generate hidden chaotic ***,the properties of the discrete mHR neuron model have not been investigated,*** this article,we first construct a discrete mHR neuron model and then acquire different hidden chaotic bursting sequences under four typical sets of *** make these sequences more suitable for the application,we further encode these hidden chaotic sequences using their ISIs and the performance comparative results show that the ISI-encoded chaotic sequences have much more complex chaos properties than the original *** addition,we apply these ISI-encoded chaotic sequences to the application of image *** image encryption scheme has a symmetric key structure and contains plain-text permutation and bidirectional diffusion *** results and security analyses prove that it has excellent robustness against various possible attacks.

关键词： chaos complexity chaotic bursting sequence memristive neuron model interspike interval(ISI) image encryption

An important reference criterion for the selection of GSSP

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Chinese Science Bulletin 2000年第5期45卷 472-480页

作者： Xunlian Wang wenbo Su China Univ Geosci Dept Geol & Mineral Resources Beijing 100083 Peoples R China

A study on the relationship between biostratigraphy and seguence stratigraphy in several designated global boundary stratotypes shows that the best way may be to take the GSSP at a point coincident with the base of the first widespread Leading Group biozone above the first flooding surface (FFS) of the relevant third-order seguence. it is suggested that the first flooding surface of the sequence should be an important reference criterion for the selection of GSSP. As the base of the first widespread Leading Group biozone chosen for the definition of GSSP could not be lower than the first flooding surface of the referred seguence, the latter surface may be an important criterion for the recognition and correlation of the chronostratigraphic boundaries.

关键词： GSSP first flooding surface sequence stratigraphy chronostratigraphy theoretical stratigraphy.

On Hierarchical Compensation Based Active Disturbance Rejection Control for ACMM Problem of Spacecraft

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Journal of Systems Science & Complexity 2023年第4期36卷 1480-1497页

作者： LIU Ping CHEN Seng XUE Wenchao LI wenbo School of Aeronautics and Astronautics Sun Yat-sen UniversityShenzhen 518107China LSC NCMISAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China Shenzhen Faroad Intelligent Equipment Co. LtdShenzhen 518105China School of Mathematics and Information Science Shaanxi Normal UniversityXi’an 710062China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China Beijing Institute of Control Engineering China Academy of Space TechnologyBeijing 100086China

The attitude control and momentum management(ACMM)problem is quite fundamental for many spacecrafts including space stations,sky laboratories and *** of single attitude control problem,ACMM problem has to take account of both disturbance rejection and energy *** paper studies the ACMM problem for general spacecraft.A practical active disturbance rejection control architecture is proposed with hierarchical compensation to different kinds of uncertain dynamics or *** particular,by integrating RLS into ESO,the constant and sinusoidal disturbance terms to be compensated are ***,the LQR law is implemented to achieve the desired performance of control systems after disturbance ***,quantitative performances of the generalized ESO,the RLS algorithm and the closed-loop tracking system are rigorously ***,the results under 9-DOF semi-physical test environment show the effectiveness of our control method.

关键词： Active disturbance rejection control attitude control and momentum management extended state observer hierarchical compensation