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Model-based automated testing of JavaScript Web applications via longer test sequences

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Frontiers of Computer Science 2022年第3期16卷 53-66页

作者： Pengfei GAO yongjie xu Fu SONG Taolue CHEN School of Information Science and Technology ShanghaiTech UniversityShanghai 201210China Department of Computer Science University of SurreyGuildford GU27XHUK

JavaScript has become one of the most widely used languages for Web *** dynamic and event-driven features make it challenging to ensure the correctness of Web applications written in JavaScript.A variety of dynamic analysis techniques have been proposed which are,however,limited in either coverage or *** this paper,we propose a simple,yet effective,model-based automated testing approach to achieve a high code-coverage within the time budget via testing with longer event *** implement our approach as an open-source tool LJS,and perform extensive experiments on 21 publicly available *** average,LJS is able to achieve 86.5%line coverage in 10 *** with JSDEP,a state-of-the-art breadth-first search based automated testing tool enriched with partial order reduction,the coverage of LJS is 11%-19%higher than that of JSDEP on real-world large Web *** empirical findings support that proper longer test sequences can achieve a higher code coverage in JavaScript Web application testing.

关键词： model-based testing automated testing JavaScript Web applications

Room-temperature ferromagnetism and piezoelectricity in metalfree 2D semiconductor crystalline carbon nitride

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Nano Research 2024年第6期17卷 5670-5679页

作者： Yong Wang Dingyi Yang Wei xu yongjie xu Yu Zhang Zixuan Cheng Yizhang Wu xuetao Gan Wei Zhong Yan Liu Genquan Han Yue Hao Wide Bandgap Semiconductor Technology Disciplines State Key Laboratory School of MicroelectronicsAcademy of Advanced Interdisciplinary ResearchXidian UniversityXi’an 710071China Emerging Device and Chip Laboratory Hangzhou Institute of TechnologyXidian UniversityHangzhou 311200China INRS Centre for Energy Materials and Telecommunications1650 Boul.Lionel BouletVarennesQC J3X 1P7Canada National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures and Jiangsu Provincial Key Laboratory for NanotechnologyNanjing UniversityNanjing 210093China School of Education Jiangsu Open UniversityNanjing 210036China Department of Physics Shaanxi University of Science and TechnologyXi’an 710021China Department of Applied Physical Sciences The University of North Carolina at Chapel HillChapel HillNC 27514USA Key Laboratory of Light Field Manipulation and Information Acquisition Ministry of Industry and Information Technologyand Shaanxi Key Laboratory of Optical Information TechnologySchool of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi'an 710129 China

Two-dimensional(2D)materials that combine ferromagnetic,semiconductor,and piezoelectric properties hold significant potential for both fundamental research and spin electronic ***,the majority of reported 2D ferromagnetic-semiconductor-piezoelectric materials rely on d-electron systems,which limits their practical applications due to a Curie temperature lower than room temperature(RT).Here,we report a high-crystallinity carbon nitride(CCN)material based on sp-electrons using a chemical vapor deposition *** exhibits a band gap of 1.8 eV and has been confirmed to possess substantial in-plane and out-of-plane ***,we acquired clear evidences of ferromagnetic behavior at room *** structural characterizations combined with theoretical calculations reveal that incorporating structural oxygen into the highly ordered heptazine structure causes partial substitution of nitrogen sites,which is primarily responsible for generating room-temperature ferromagnetism and *** a result,the strain in wrinkles can effectively modulate the domain behavior and piezoelectric potential at room *** addition of RT ferromagnetic-semiconductor-piezoelectric material based on sp-electrons to the family of two-dimensional materials opens up numerous possibilities for novel applications in fundamental research and spin electronic devices.

关键词： crystallinity carbon nitride room-temperature ferromagnetism piezoelectricity magnetic force microscopy density functional theory(DFT)calculations

Deletion of heterogeneous nuclear ribonucleoprotein K in satellite cells leads to inhibited skeletal muscle regeneration in mice

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Genes & Diseases 2024年第4期11卷 102-105页

作者： yongjie xu Haixia xu Xiaofang Cheng Nuo Chen Yaling Wang Yueru Huang Jiahua Guo Yueqian Zheng Mengjia Zhang Chuunyu Du Cunzhen Zhao Cencen Li Pengpeng Zhang College of Life Science Xinyang Normal UniversityXinyangHenan 464000China Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountain Xinyang Normal UniversityXinyangHenan 464000China

Heterogeneous nuclear ribonucleoprotein K(hnRNPK)is a predominantly nuclear RNA-binding protein that can bind to DNA or RNA through three KH domains and interact with multiple proteins by interactive *** binding activities enable hnRNPK to link the function in a wide array of diverse cellular processes,such as chromatin remodeling,gene transcription,RNA metabolism,protein translation,DNA repair,and cell signal transduction,thereby playing crucial roles in many biological processes,including development,axonal regeneration,spermatogenesis,cell cycle,apoptosis,differentiation,and carcinogenesis.

关键词： inhibited metabolism carcinogenesis

Conditions for the Formation of Oil and Gas Pools in Tertiary Volcanics in the Western Part of the Huimin Sag, Shandong and Their Distribution

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Acta Geologica Sinica(English Edition) 1989年第1期63卷 23-37页

作者： Liu Zerong and Xin Quanlin East China Petroleum Institute, Dongying, Shandong Wang yongjie, xu Piqin and Zhang Xiaofeng Shengli Oilfield, Dongying, Shandong Yang Shuren East China Petroleum Institute Dongying Shandong China

Conditions for the Formation of oil and gas pools in Tertiary volcanics in the western part of the Huimin sag, Shandong and then (?)stribution have been studied based on the geological, seismic and well-logging information. In this paper, the types and lithofacies of the volcanic rocks in the western part of the Huimin sag are described; the relationship between rocks and electrical properties, the seismic reflection structures, the development and distribution of the volcanic rocks are expounded; and the fourfold role of the volcanic activities in the formation of the oil and gas pools is also dealt with. It is considered by the authors that the volcanic activities were not destructive to the formation of oil and gas pools but a factor favourable to the accumulation of organic matters and their conversion to hydrocarbon. The volcanic rocks might have served as reservoir rocks and cap rocks, or as a synsedimentary anticline. The prerequisites and important factors for the formation of oil and gas pools and their distribution are pointed out in the paper.

关键词： Conditions for the Formation of Oil and Gas Pools in Tertiary Volcanics in the Western Part of the Huimin Sag

Tissue expression,association analysis between three novel SNPs of the RXRαgene and growth traits in Chinese indigenous cattle

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Chinese Science Bulletin 2013年第18期58卷 2053-2060页

作者： MA Yun GAO HanTing LIN Feng CHEN NingBo xu yongjie JIANG JinHang LI Fen LU FangRu ZHAO Man SHI KuiLin CHENG Ni LI JunYa College of Life Sciences Xinyang Normal University College of Animal Husbandry and Veterinary Medicine Henan Agricultural University Animal Husbandry Bureau of Pingdingshan Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding Institute of Animal Husbandry and VeterinaryHubei Academy of Agricultural Science Institute of Animal Science Chinese Academy of Agricultural Sciences

Retinoid X receptor(RXR) α is a member of the nuclear hormone receptor superfamily that mediates the biological effects on several hormones,vitamins,and regulates lipid,glucose and energy *** this study,the tissue expression profiles of the bovine RXRαgene and association analysis of single nucleotide polymorphisms(SNPs) with growth traits were carried out in 413 Chinese native *** expression profile was analysed in ten Jiaxian cattle tissues by real-time PCR,and the results showed that RXRαgene was abundantly expressed in adipose tissue and spleen,moderately expressed in heart,liver,lung,kidney,muscle and ***,three SNPs(T27919A,T28139C and G28142A) and five haplotypes were *** with TTG was dominant with frequency of 69.1%.Chi-square test showed all populations were in Hardy-Weinberg equilibrium(P>0.05) at the three sites except Jiaxian cattle at G28142A site and Qinchuan cattle at T27919A *** analysis of combined sites showed that the individuals with TTGA genotype had significantly higher heart girth than those with TAGG genotype(P<0.05) and the animals with AAGA genotype had higher body weight than those with TAGG genotype(P<0.05) in T27919A-G28142A *** girth,abdominal circumference and body weight of individuals with TCAG genotype were exceedingly higher than those with TTGG(P<0.01),TTGA and TCGG(P<0.05) in T28139C-G28142A *** T27919A-T28139C site,the individuals of TCTA and TCTT genotype had significantly higher heart girth and lower height at hip cross than those with TTTA(P<0.05),and the body weight of TCAA and TCTT genotype individuals was higher than those with TTTA(P<0.05).In conclusion,these results provided evidence that the polymorphisms of RXRαgene were associated with growth traits and might apply to Chinese indigenous yellow cattle breeding program as a possible candidate for marker-assisted selection(MAS).

关键词：单核苷酸多态性组织表达谱中国黄牛生长性状基因型关联分析 Hardy-Weinberg平衡分子标记辅助选择

Simulation and Optimization Design of CRH380A EMU Bogie Frame

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Simulation and Optimization Design of CRH380A EMU Bogie Fram...

Survey of hepatitis B virus infection for liver cancer screening in China:A population-based,cross-sectional study

作者： Bangsheng Xing Jialu Zhang yongjie xu School of Mechanical and Electrical Engineering Jiangsu Normal University

Taking SKMB-200 power bogie frame applied to CRH380 A EMU as the research object,based on UIC615-4 standard,four kinds of simulated operating conditions load and one kind of supernormal load are calculated,and then constraints and loads required for ABAQUS simulation analysis are *** results of static strength simulation show that the maximum stress of the frame under simulated operation conditions,and under abnormal load conditions are lower than the allowable stress of the main material SMA490 BW weathering *** static strength of the frame meets the ***,through setting design variables,selecting constraints and determining the objective function,the structural optimization analysis of the selected abnormal load cases is carried *** optimization results show that the total mass is reduced by 109 kg,which is 6.8% lower than that before optimization,and the maximum equivalent stress value of the frame is 329.98 MPa,which still meets the strength *** optimizing the structural parameters of the frame,the under-spring mass of SKMB-200 bogie can be effectively reduced,and its dynamic performance can be improved,which can provide reference for the optimum design of the bogie structure of EMU.

关键词： Bogie frame EMU Finite element simulation CRH380A

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Chinese Medical Journal 2024年第12期137卷 1414-1420页

作者： yongjie xu Changfa Xia He Li Maomao Cao Fan Yang Qianru Li Mengdi Cao Wanqing Chen Office of Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Office of National Cancer Regional Medical Centre in Liaoning Province The First Affiliated Hospital of China Medical UniversityShenyangLiaoning 110001China

Background:Hepatitis B virus(HBV)infection is the primary cause of hepatocellular carcinoma(HCC)in *** target population for HCC screening comprises individuals who test positive for hepatitis B surface antigen(HBsAg).However,current data on the prevalence of HBV infection among individuals who are eligible for HCC screening in China are *** aimed to assess the seroepidemiology of HBV infection among Chinese individuals eligible for HCC screening to provide the latest evidence for appropriate HCC screening strategies in ***:Questionnaires including information of sex,age,ethnicity,marital status,educational level,source of drinking water,as well as smoking and alcohol consumption history and serum samples were collected from females aged 45-64 years and males aged 35-64 years in 21 counties from 4 provinces in eastern and central China between 2015 and ***-linked immunosorbent assay methods were used to detect the serum HBV marker ***:A total of 603,082 individuals were enrolled,and serum samples were collected for analysis from January 1,2015 to December 31,*** prevalence of HBsAg positive in the study population was 5.23%(31,528/603,082).The prevalence of HBsAg positive was greater in males than in females(5.60%[17,660/315,183]vs 4.82%[13,868/287,899],χ^(2)=187.52,P<0.0001).The elderly participants exhibited a greater prevalence of HBV infection than younger participants(χ^(2)=41.73,P<0.0001).Birth cohort analysis revealed an overall downward trend in HBV prevalence for both males and *** born in more recent cohorts exhibited a lower prevalence of HBV infection as compared to those born ***:The current prevalence of HBV infection remains above 5%in populations eligible for HCC screening in *** efforts should be made to increase the accessibility of HCC screening among individuals with HBV infection.

关键词： Hepatitis B virus Liver cancer screening China Hepatitis B surface antigens Early detection of cancer

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聚落考古在中国——历程·现状·问题

华夏考古 2009年第4期 123-131页

作者：许永杰中山大学人类学系广东广州市510275

本文对聚落考古学在中国的发展历程和现状进行了细致的梳理与理性的分析,指出了现今聚落考古实践中所存在的问题。作者将以往田野考古中进行的聚落考古实践分为全面揭露一处遗址、区域考古调查、区域考古调查与全面揭露及多学科结合三... 详细信息

本文对聚落考古学在中国的发展历程和现状进行了细致的梳理与理性的分析,指出了现今聚落考古实践中所存在的问题。作者将以往田野考古中进行的聚落考古实践分为全面揭露一处遗址、区域考古调查、区域考古调查与全面揭露及多学科结合三种形式,并对如何进行聚落实践提出了自己的观点。

关键词：聚落考古学聚落地理学区域调查遗址揭露

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盒型芯层波纹板的抗爆炸冲击防护性能

兵工学报 2023年第12期44卷 3687-3695页

作者：王昊徐斌王舒徐永杰吴浩中北大学机电工程学院山西太原030051 中国兵器工业第208研究所瞬态冲击技术重点实验室北京102202 重庆红宇精密工业集团有限公司重庆402760

针对波纹板受爆炸载荷冲击的变形吸能问题,对梯形波纹结构进行顶部开口和折叠改进,提出一种盒型结构作为波纹板芯层,以提高其在爆炸冲击载荷下的吸能特性。通过对盒型芯层的单个胞元进行准静态压缩试验,与kirigami改进梯形波纹结构对比... 详细信息

针对波纹板受爆炸载荷冲击的变形吸能问题,对梯形波纹结构进行顶部开口和折叠改进,提出一种盒型结构作为波纹板芯层,以提高其在爆炸冲击载荷下的吸能特性。通过对盒型芯层的单个胞元进行准静态压缩试验,与kirigami改进梯形波纹结构对比,比较吸能值、质量比吸能、初始压垮峰值力、平均压垮力、压垮力效率等主要吸能指标。应用有限元软件建立数值模拟模型,利用试验数据对数值模拟模型进行校正,将不同长宽比的盒型结构和kirigami改进梯形波纹结构阵列排布作为波纹板芯层,对比不同芯层波纹板在相同爆炸载荷作用下的抗爆性能,分析吸能值与背板变形量等特征,并结合变形过程应力云图分析波纹板在爆炸载荷作用下的响应。研究结果表明,所提出的盒型芯层具有质量比吸能值高,变形模式均匀稳定,有效吸能行程长等优良的吸能特性,以其为芯层的波纹板在爆炸冲击载荷作用下,能有效降低背板变形,在爆炸冲击防护领域具有潜在的应用前景。

关键词：波纹夹层结构薄壁结构耐撞性准静态压缩爆炸冲击波有限元模拟