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Difference of a Hauptmodul for Γ_(0)(N ) and certain Gross-Zagier type CM value formulas

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Science China Mathematics 2022年第2期65卷 221-258页

作者： Dongxi ye School of Mathematics(Zhuhai) Sun Yat-sen UniversityZhuhai 519082China

In this work, we show that the difference of a Hauptmodul for a genus zero group Γ_(0)(N) as a modular function on Y_(0)(N) × Y_(0)(N) is a Borcherds lift of type(2, 2). As applications, we derive the monster denomi... 详细信息

关键词： Borcherds product the Gross-Zagier CM value formula monster denominator formula modular forms for the weil representation

Effect of anisotropic resistance characteristic on boundary-layer transitional flow

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Applied Mathematics and Mechanics(English Edition) 2022年第12期43卷 1935-1950页

作者： Zheng HONG Zhengyin ye Kangling wU Kun ye National Key Laboratory of Science and Technology on Aerodynamic Design and Research Northwestern Polytechnical UniversityXi'an 710072China

It is observed that the feather surface exhibits anisotropic resistances for the streamwise and spanwise *** obtain a qualitative understanding about the effect of this anisotropic resistance feature of surface on the boundary-layer transitional flow over a flat plate,a simple phenomenological model for the anisotropic resistance is established in this *** means of the large eddy simulation(LES)with high-order accurate finite difference method,the numerical investigations are *** numerical results show that with the spanwise resistance hindering the formation of vortexes,the transition from laminar flow to turbulent flow can be delayed,and turbulence is weakened when the flow becomes fully turbulent,which leads to significant drag reduction for the *** the contrary,the streamwise resistance renders the flow less stable,which leads to the earlier transition and enhances turbulence in the turbulent region,causing a drag increase for the ***,it is indicated that a surface with large resistance for spanwise flow and small resistance for streamwise flow can achieve significant drag *** present results highlight the anisotropic resistance characteristic near the feather surface for drag reduction,and shed a light on the study of bird’s efficient flight.

关键词： anisotropic resistance transitional flow drag reduction numerical simulation

Bloch oscillation of weyl metal along synthetic dimensions

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Chinese Physics B 2018年第12期27卷 104-109页

作者： ye Xiong Department of Physics and Institute of Theoretical Physics Nanjing Normal University

Synthetic dimensions in time(Sambe space)can be utilized in a periodic time-dependent *** subjecting the system into a time-periodic potential and measuring the physical quantities at distinct time in one period,one is able to simulate the models in higher *** verify this approach,we show that the Bloch oscillation of wave packets along the magnetic field in a three-dimensional(3D)weyl metal can be simulated on a two-dimensional(2D)*** from the chiral anomaly,this Bloch oscillation is anisotropic when the initial wave packet is not on the 0-th Landau level.

关键词： synthetic dimensions weyl metal

Investigation of the overconsolidation and structural behavior of Shanghai clays by element testing and constitutive modeling

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Underground Space 2016年第1期1卷 62-77页

作者： Guan-lin ye Bin ye Department of Civil Engineering and State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Geotechnical Engineering Tongji UniversityShanghai 200092China

The mechanical properties and constitutive modeling of Shanghai clays are very important for numerical analysis on geotechnical engineering in Shanghai,where continuous layers of soft clays run 30-40 m *** clays are divided into 5 major layers.A series of laboratory tests are carried out to investigate their mechanical *** top and bottom layers are overconsolidated hard clays,and the middle layers are normally consolidated or lightly overconsolidated sensitive marine clays.A constitutive model,which can describe the overconsolidation and structure of soils using only 8 parameters,is modified to simulate the test results.A rational procedure to determine the values of the material parameters and initial conditions is also *** model is able to effectively reproduce both one-dimensional(1D)consolidation and drained/undrained triaxial test results of Shanghai clays,with one set of parameters for each *** element testing and constitutive modeling,two findings are ***,the decay rates of overconsolidation are smaller in overconsolidated layers than in normally consolidated ***,the natural microstructure of layer 4 is relatively stable,that is,a large degree of structure is still maintained in the specimen even after 1D consolidation and drained triaxial *** modified model and obtained parameter values can be used for numerical analysis of geotechnical projects in Shanghai.

关键词： Shanghai clays Laboratory tests Constitutive model Overconsolidation Structure

Cellular and humoral immune interactions between Drosophila and its parasitoids

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Insect Science 2021年第5期28卷 1208-1227页

作者： Lei Yang Li-Ming Qiu Qi Fang David w.Stanley Gong-Yin ye State Key Laboratory of Rice Biology&Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects Institute of Insect SciencesZhejiang University.HangzhouChina USD A Agricultural Research Service Biological Control of Insects Research LaboratoryColumbiaMissouriUnited States

The immune interactions occurring between parasitoids and their host insects,especially in Drosophila-wasp models,have long been the research focus of insect immunology and *** infestation in Drosophila is counteracted by its multiple natural immune defense systems,which include cellular and humoral immunity,Occurring in the hemocoel,cellular immune responses involve the proliferation,differentiation,migration and spreading of host hemocytes and parasitoid encapsulation by ***,humoral immune responses rely more heavily on melanization and on the Toll,Imd and Jak/Stat immune pathways associated w ith antimicrobial peptides along with stress *** the wasps'side,successful development is achieved by introducing various virulence factors to counteract immune responses of *** or all of these factors manipulate the host's immunity for successful *** we review current knowledge of the cellular and humoral immune interactions between Drosophila and its parasitoids,focusing on the defense mechanisms used by Drosophila and the strategies evolved by parasitic wasps to outwit it.

关键词： Drosophilas immunity parasitoid venom virus-like particles

Prior-based patch-level representation learning for electric vehicle battery state-of-charge estimation across a wide temperature scope

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Science China Technological Sciences 2024年第12期67卷 3682-3694页

作者： ye SongTao AN Dou Faculty of Electronic and Information Engineering Xi'an Jiaotong University

Electric vehicles(EVs) powered by lithium-ion batteries have emerged as a global development trend. To ensure the safe and stable driving of EVs, it is imperative to address battery safety and thermal management issues, which rely heavily on the precise state-of-charge(SOC) estimation of the battery. However, estimating SOC under uncontrolled environmental temperatures remains an unresolved challenge. This study proposes a patch-level representation learning model based on domain knowledge to estimate the SOC over a wide temperature range. First, patches were adopted as inputs instead of traditional points, thereby mitigating error accumulation and capturing dynamic changes in the battery from these more informative ***, the open-circuit voltage(OCV)-SOC-temperature relationship was incorporated to obtain the temperature-related SOC priors. Subsequently, the prior was updated recursively along the time dimension to obtain a more precise SOC estimate. The accuracy of the proposed model was confirmed experimentally for three driving cycles at six ambient temperatures, significantly reducing the root mean square error by 48.19% compared to popular existing models. Notably, the performance of the proposed method had an excellent improvement of 51.52% and 57.20% at-10°C and-20°C, respectively. Moreover, the parameter size of the proposed method was 39.748 KB, which significantly promoted the deployment and application of data-driven models in the real world.

关键词： lithium-ion battery data-driven prior knowledge state-of-charge wide temperature scope

胃食管反流症状发生率及其受年龄和性别的影响

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世界核心医学期刊文摘（胃肠病学分册） 2005年第5期1卷 57-57页

作者： Nilsson M. Johnsen R. ye w. 朱国栋 Dept. of Surgery Karolinska Hospital SE-171 76 Stockholm Sweden Dr.

Background: Most previous studies of reflux symptom prevalence are of small sample size. No reliable data concerning age-and sex-stratified prevalence are available. Methods: Among 65,363 adult participants in a public health survey in Nord-Trondelag, Norway, 58,596 (90%) responded concerning occurrence and severity of heartburn or regurgitation during the past 12 months. The prevalence of minor, severe and any reflux symptoms was calculated, including stratification for age and sex. In order to examine whether the relative risk of reflux symptoms between sexes, in different age groups, was affected by other potential risk factors for reflux, confounding effects were tested using multivariate logistic regression. Odds ratios and their 95%confidence intervals were used to estimate relative risks. Results: Total prevalence of reflux symptoms was 31.4%, whereof 26.0%were minor symptoms and 5.4%severe symptoms. The prevalence of symptoms occurring at least weekly was 11.6%. Among women, the prevalence increased gradually from 22.1%in the youngest age category to 37.5%in the oldest, while among men it gradually increased from 25.8%in the youngest age group to peak at 36.0%between the ages of 50 and 60 years, after which it declined to 33.8%after age 70. A higher prevalence among women compared to men in the oldest age groups was not explained by confounding by body mass, tobacco smoking, alcohol consumption, dietary factors, or physical exercise. Conclusions: About every third adult person suffered from reflux symptoms. The prevalence increases linearly with age among women, while among men it peaked between the age of 50 and 70 years and thereafter declined.

关键词：胃食管反流症状发生率反流症状龄组膳食因素比值比混杂效应男性人群轻微症状龙德

Detection and Estimation of False Data Injection Attacks for Load Frequency Control Systems

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Journal of Modern Power Systems and Clean Energy 2022年第4期10卷 861-870页

作者： Jun ye Xiang Yu Hangzhou Innovation Institute Beihang UniversityHangzhouChina School of Automation Science and Electrical Engineering Beihang UniversityBeijingChina

False data injection attacks(FDIAs)against the load frequency control(LFC)system can lead to unstable operation of power *** this paper,the problems of detecting and estimating the FDIAs for the LFC system in the presence of external disturbances are ***,the LFC system model with FDIAs against frequency and tie-line power measurements is ***,a design procedure for the unknown input observer(UIO)is presented and the residual signal is generated to detect the *** UIO is designed to decouple the effect of the unknown external disturbance on the residual *** that,an attack estimation method based on a robust adaptive observer(RAO)is proposed to estimate the state and the FDIAs *** order to improve the performance of attack estimation,the H¥technique is employed to minimize the effect of external disturbance on estimation errors,and the uniform boundedness of the state and attack estimation errors is proven using Lyapunov stability ***,a two-area interconnected power system is simulated to demonstrate the effectiveness of the proposed attack detection and estimation algorithms.

关键词： External disturbance false data injection attacks load frequency control robust adaptive observer unknown input observer

Heterogeneous clustering via adversarial deep Bayesian generative model

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Frontiers of Computer Science 2023年第3期17卷 103-112页

作者： Xulun ye Jieyu ZHAO Institute of Computer Science and Technology Ningbo UniversityNingbo 315211China

This paper aims to study the deep clustering problem with heterogeneous features and unknown cluster *** address this issue,a novel deep Bayesian clustering framework is *** particular,a heterogeneous feature metric is first constructed to measure the similarity between different types of ***,a feature metric-restricted hierarchical sample generation process is established,in which sample with heterogeneous features is clustered by generating it from a similarity constraint hidden *** estimating the model parameters and posterior probability,the corresponding variational inference algorithm is derived and *** verify our model capability,we demonstrate our model on the synthetic dataset and show the superiority of the proposed method on some real *** source code is released on the website:***/yexlwh/Heterogeneousclustering.

关键词： dirichlet process heterogeneous clustering generative adversarial network laplacian approximation variational inference