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The cosemisimplicity and cobraided structures of monoidal comonads

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Frontiers of Mathematics in China 2022年第3期17卷 485-499页

作者： Xiaohui ZHANG hui wu School of Mathematical Sciences Qufu Normal UniversityQufu 273165China

In this paper,we study the category of corepresentations of a monoidal *** show that it is a semisimple category if and only if the monoidal comonad is a cosemisipmle(coseparable)comonad,and it is a braided category if and only if the monoidal comonad admit a cobraided *** last,as an application,the braided structure and the semisimplicity of the Hom-comodule category of a monoidal Hom-bialgebra are discussed.

关键词： Comonads braided cateogries monoidal Hom-Hopf algebras

Principal components of nuclear mass models

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 65-71页

作者： Xin-hui wu Pengwei Zhao Department of Physics Fuzhou UniversityFuzhou 350108China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China

Principal component analysis(PCA)is employed to extract the principal components(PCs)present in nuclear mass models for the first *** effects from different nuclear mass models are reintegrated and reorganized in the extracted *** PCs are recombined to build new mass models,which achieve better accuracy than the original theoretical mass *** comparison indicates that using the PCA approach,the effects contained in different mass models can be collaborated to improve nuclear mass predictions.

关键词： nuclear mass principal component analysis nuclear models statistical methods

Slip boundary conditions for rough surfaces

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Chinese Journal of Aeronautics 2023年第5期36卷 239-249页

作者： hui wu Weifang CHEN Zhongzheng JIANG School of Aeronautics and Astronautics Zhejiang UniversityHangzhou 310027China

The velocity slip and temperature jump for a two-dimensional rough plate under hypersonic conditions were analyzed using the Direct Simulation Monte Carlo(DSMC)*** roughness was explicitly modeled by introducing various structures on the flat *** influences of relative roughness height,which involves the roughness height,roughness spacing,incoming velocity,and the degree of rarefaction,were analyzed and *** is found that with the increase of the relative roughness height,the jump temperature increases,while the slip velocity decreases *** effects of surface roughness on the slip coefficients can be attributed to the change of accommodation coefficients.A new slip model for rough surfaces was established in this paper,which accounts for the coupling effects of gas rarefaction and surface roughness,without the effort to model the surface roughness *** nitrogen flows in the microchannel,and flows over a blunt cone and an axisymmetric bi-conic body,were simulated under the modified and conventional slip boundary conditions,*** numerical solutions were validated with experimental *** can be safely concluded that compared with the traditional first-order slip boundary conditions,the modified slip model improves the accuracy of macroscopic properties,especially the heat transfer coefficient.

关键词： Direct Simulation Monte Carlo(DSMC) Slip coefficients Surface roughness Temperature jump Velocity slip

Origins and transports of the low-salinity coastal water in the southwestern Yellow Sea

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Acta Oceanologica Sinica 2018年第4期37卷 1-11页

作者： ZHU Ping wu hui State Key Laboratory of Estuarine and Coastal Research East China Normal University School of Marine Sciences East China Normal University

In the southwestern Yellow Sea there is a low-salinity and turbid coastal water,the Subei Coastal Water（SCW）.The origins of freshwater contents and thus the dissolved terrigenous nutrients in the SCW have been debated for *** this study,we used a well-validated numerical model to quantify the contributions of multiple rivers,i.e.,the Changjiang River in the south and the multiple Subei local rivers（SLRs） in the north,in forming this yearround low-salinity coastal *** is found that the freshwater contents in the SCW is dominated by the Changjiang River south of 33.5°N,by the SLRs north of 34.5°N,and by both sources in 33.5°–34.5°***,the Changjiang River contributes ~70% in the dry season and ~80% in the wet season of the total freshwater contents in the SCW,*** driving the Changjiang River Plume to flow northward is the tidal residual current,which can even overwhelm the wind effects in winter *** residual currents turn offshore near the Old Yellow River Delta（OYRD） by the collision of the two tidal wave systems,which transport the freshwater from both sources into the interior Yellow *** age experiments show that it takes 50–150 d for the Changjiang River Plume to reach the SCW in the spring and summer seasons,thus there is a 2-month lag between the maximum freshwater content in SCW and the peak Changjiang River *** the winter and autumn seasons,the low salinity in inner SCW is the remnant Changjiang River diluted water arrived in the previous seasons.

关键词： Subei Coastal Water origins river plume numerical modeling

Insights into bacterial protein glycosylation in human microbiota

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Science China(Life Sciences) 2016年第1期59卷 11-18页

作者： Fan Zhu hui wu Departments of Microbiology and Pediatric Dentistry Schools of Dentistry and Medicine University of Alabama at Birmingham

The study of human microbiota is an emerging research topic. The past efforts have mainly centered on studying the composition and genomic landscape of bacterial species within the targeted communities. The interaction between bacteria and hosts is the pivotal event in the initiation and progression of infectious diseases. There is a great need to identify and characterize the molecules that mediate the bacteria-host interaction. Bacterial surface exposed proteins play an important role in the bacteria-host interaction. Numerous surface proteins are glycosylated, and the glycosylation is crucial for their function in mediating the bacterial interaction with hosts. Here we present an overview of surface glycoproteins from bacteria that inhabit three major mucosal environments across human body: oral, gut and skin. We describe the important enzymes involved in the process of protein glycosylation, and discuss how the process impacts the bacteria-host interaction. Emerging molecular details underlying glycosylation of bacterial surface proteins may lead to new opportunities for designing anti-infective small molecules, and developing novel vaccines in order to treat or prevent bacterial infection.

关键词： microbiota surface glycoprotein glycosylation bacteria-host interaction glycosyltransferase

Nψ,φ-type Quotient Modules over the Bidisk

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Acta Mathematica Sinica,English Series 2020年第8期36卷 943-960页

作者： Chang hui wu Tao YU School of Mathematical Sciences Qufu Normal UniversityQufu 273165P.R.China School of Mathematical Sciences Dalian University of TechnologyDalian 116024P.R.China

Let H^2(D^2)be the Hardy space over the bidisk D^2,and let Mψ,φ=[(ψ(z)-φ(w))^2]be the submodule generated by(ψ(z)-φ(w))2,whereψ(z)andφ(w)are nonconstant inner *** related quotient module is denoted by Nψ,φ=H^2(D^2)ΘMψ,φ.In this paper,we give a complete characterization for the essential normality of Nψ,φ.In particular,ifψ(z)=z,we simply write Mψ,φand Nψ,φas Mφand Nφ*** paper also studies compactness of evaluation operators L(0)|Nφand R(0)|Nφ,essential spectrum of compression operator Sz on Nφ,essential normality of compression operators Sz and Sw on Nφ.

关键词： Quotient module compression operators essential normality

Schedulability analysis for linear transactions under fixed priority hybrid scheduling

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第6期9卷 776-785页

作者： Zhi-gang GAO Zhao-hui wu School of Computer Science and Technology Zhejiang University Hangzhou 310027 China

In hard real-time systems, schedulability analysis is not only one of the important means of guaranteeing the timelines of embedded software but also one of the fundamental theories of applying other new techniques, such as energy savings and fault tolerance. However, most of the existing schedulability analysis methods assume that schedulers use preemptive scheduling or non-preemptive scheduling. In this paper, we present a schedulability analysis method, i.e., the worst-case hybrid scheduling (WCHS) algorithm, which considers the influence of release jitters of transactions and extends schedulability analysis theory to timing analysis of linear transactions under fixed priority hybrid scheduling. To the best of our knowledge, this method is the first one on timing analysis of linear transactions under hybrid scheduling. An example is employed to demonstrate the use of this method. Experiments show that this method has lower computational complexity while keeping correctness, and that hybrid scheduling has little influence on the average worst-case response time (WCRT), but a negative impact on the schedulability of systems.

关键词： Real-time systems Hybrid scheduling Linear transactions Worst-case response time (WCRT) Schedulability analysis

A Review on Anode Side Interface Stability Micromechanisms and Engineering for Garnet Electrolyte-based Solid-state Batteries

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Chemical Research in Chinese Universities 2020年第3期36卷 351-359页

作者： WANG Kuangyu wu Yulong LIU Kai wu hui State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084P.R.China

Li-ion solid electrolytes,which are compatible with metallic lithium anodes,are the key component of all solid-state ***,the garnet Li7La3Zr2O12 solid electrolyte has experienced booming development and shown great potential for its excellent overall ***,further understanding of its stability with lithium is required for a longer battery *** this review,latest research work on the interace between garnet-type solid electrolytes and lithium is presented,including both mechanisms governing interface stability and interface engineering *** development prospects and potential directions for following research are also discussed in the last section.

关键词： Solid-state battery Interface engineering Garnet Li7La3Zr2O12 solid electrolyte

Exponential stabilization of an ODE system with Euler-Bernoulli beam actuator dynamics

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Science China(Information Sciences) 2022年第5期65卷 278-279页

作者： Xiao-hui wu Hongyinping FENG School of Mathematical Sciences Shanxi University

Dear editor,Recently, finite-dimensional systems with infinitedimensional actuator or sensor dynamics have drawn the attention of researchers worldwide. Many real-world systems can be modeled as ordinary differential equation (ODE)-partial differential equation (PDE) cascade systems, such as traffic flows, chemical reactor processes, heat exchangers,and oil well drilling. In this study, we consider the problem of compensating the actuator dynamics modeled by the Euler-Bernoulli beam (EBB) equation.

关键词： Actuator dynamics compensation Backstepping Euler-Bernoulli Beam ODE-PDE cascade systems Stabilization