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Fully Distributed Learning for Deep Random Vector Functional-Link Networks

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Journal of Applied Mathematics and Physics 2024年第4期12卷 1247-1262页

作者： Huada Zhu wu ai School of Mathematics and Statistics Guilin University of Technology Guilin China Guangxi Colleges and Universities Key Laboratory of Applied Statistics Guilin China

In the contemporary era, the proliferation of information technology has led to an unprecedented surge in data generation, with this data being dispersed across a multitude of mobile devices. Facing these situations and the training of deep learning model that needs great computing power support, the distributed algorithm that can carry out multi-party joint modeling has attracted everyone’s attention. The distributed training mode relieves the huge pressure of centralized model on computer computing power and communication. However, most distributed algorithms currently work in a master-slave mode, often including a central server for coordination, which to some extent will cause communication pressure, data leakage, privacy violations and other issues. To solve these problems, a decentralized fully distributed algorithm based on deep random weight neural network is proposed. The algorithm decomposes the original objective function into several sub-problems under consistency constraints, combines the decentralized average consensus (DAC) and alternating direction method of multipliers (ADMM), and achieves the goal of joint modeling and training through local calculation and communication of each node. Finally, we compare the proposed decentralized algorithm with several centralized deep neural networks with random weights, and experimental results demonstrate the effectiveness of the proposed algorithm.

关键词： Distributed Optimization Deep Neural Network Random Vector Functional-Link (RVFL) Network Alternating Direction Method of Multipliers (ADMM)

Decentralized Semi-Supervised Learning for Stochastic Configuration Networks Based on the Mean Teacher Method

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Journal of Computer and Communications 2024年第4期12卷 247-261页

作者： Kaijing Li wu ai School of Mathematics and Statistics Guilin University of Technology Guilin China Guangxi Colleges and Universities Key Laboratory of Applied Statistics Guilin China

The aim of this paper is to broaden the application of Stochastic Configuration Network (SCN) in the semi-supervised domain by utilizing common unlabeled data in daily life. It can enhance the classification accuracy of decentralized SCN algorithms while effectively protecting user privacy. To this end, we propose a decentralized semi-supervised learning algorithm for SCN, called DMT-SCN, which introduces teacher and student models by combining the idea of consistency regularization to improve the response speed of model iterations. In order to reduce the possible negative impact of unsupervised data on the model, we purposely change the way of adding noise to the unlabeled data. Simulation results show that the algorithm can effectively utilize unlabeled data to improve the classification accuracy of SCN training and is robust under different ground simulation environments.

关键词： Stochastic Neural Network Consistency Regularization Semi-Supervised Learning Decentralized Learning

Mechanism of Qili Qiangxin Capsule for Heart Failure Based on miR133a-Endoplasmic Reticulum Stress

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Chinese Journal of Integrative Medicine 2024年第5期30卷 398-407页

作者： JI Xiao-di YANG Ding CUI Xi-yuan LOU Li-xia NIE Bo ZHAO Jiu-li ZHAO Ming-jing wu ai-ming Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine Key Laboratory of Chinese Internal Medicine of Ministry of Education and BeijingBeijing 100700China Department of Traditional Chinese Medicine Fuwai HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100037China

Objective:To investigate the pharmacological mechanism of Qili Qiangxin Capsule(QLQX)improvement of heart failure(HF)based on miR133a-endoplasmic reticulum stress(ERS)***:A left coronary artery ligation-induced HF after myocardial infarction model was used in this *** were randomly assigned to the sham group,the model group,the QLQX group[0.32 g/(kg·d)],and the captopril group[2.25 mg/(kg·d)],15 rats per group,followed by 4 weeks of *** function such as left ventricular ejection fraction(EF),fractional shortening(FS),left ventricular systolic pressure(LVSP),left ventricular end diastolic pressure(LVEDP),the maximal rate of increase of left ventricular pressure(+dp/dt max),and the maximal rate of decrease of left ventricular pressure(–dp/dt max)were monitored by echocardiography and *** and eosin(HE)and Masson stainings were used to visualize pathological changes in myocardial *** m RNA expression of mi R133a,glucose-regulated protein78(GRP78),inositol-requiring enzyme 1(IRE1),activating transcription factor 6(ATF6),X-box binding protein1(XBP1),C/EBP homologous protein(CHOP)and Caspase 12 were detected by *** protein expression of GRP78,p-IRE1/IRE1ratio,cleaved-ATF6,XBP1-s(the spliced form of XBP1),CHOP and Caspase 12 were detected by Western *** T-mediated d UTP nick-end labeling(TUNEL)staining was used to detect the rate of ***:QLQX significantly improved cardiac function as evidenced by increased EF,FS,LVSP,+dp/dt max,-dp/dt max,and decreased LVEDP(Paining showed that QLQX ameliorated cardiac pathologic damage to some *** staining indicated that QLQX significantly reduced collagen volume fraction in myocardial tissue(P<0.01).Results from RT-PCR and Western blot showed that QLQX significantly increased the expression of mi R133a and inhibited the m RNA expressions of GRP78,IRE1,ATF6 and XBP1,as well as decreased the protein expressions of GRP78,cleave

关键词： heart failure Qili Qiangxin Capsule miR133a endoplasmic reticulum stress apoptosis

Individualized vaginal applicator for stage IIb primary vaginal adenocarcinoma:A case report

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World Journal of Clinical Oncology 2024年第8期15卷 1102-1109页

作者： Saijilafu Yan-Jun Gu ai-wu Huang Chang-Fen Xu Li-Wen Qian Hangzhou Lin'an Traditional Chinese Medicine Hospital Affiliated HospitalHangzhou City UniversityHangzhou 311300Zhejiang ProvinceChina Department of Radiation Oncology Sir Run Run Shaw HospitalHangzhou 310016Zhejiang ProvinceChina Department of the Gynecology and Obstetrics Hangzhou Lin'an Traditional Chinese Medicine HospitalAffiliated HospitalHangzhou City UniversityHangzhou 311300Zhejiang ProvinceChina

BACKGROUND Primary vaginal cancer is rare and most vaginal tumors are metastatic,often arising from adjacent gynecologic *** vaginal cancers are also more common among postmenopausal women and most of these are squamous cell carcinomas,with adenocarcinomas being relatively *** bleeding is the most common clinical manifestation of vaginal *** 70%of vaginal adenocarcinomas are stage I lesions at the time of diagnosis,for which radical surgery is ***,more advanced vaginal cancers are not amenable to radical surgical treatment and have poor clinical *** treatments modes are still being ***,we report a rare case of stage IIb primary vaginal adenocarcinoma for which an individually designed vaginal applicator for after-loading radiotherapy was used to achieve good tumor *** SUMMARY A 62-year-old woman presented to our clinic after 3 months of abnormal postmenopausal vaginal *** examination,computed tomography(CT),and positron emission tomography-CT showed a large mass(about 5 cm)on the anterior vaginal *** biopsy confirmed adenocarcinoma of vaginal *** three cycles of carboplatin plus paclitaxel chemotherapy,the lesion partially *** patient then received external irradiation of 45 gray(gy)in 25 fractions,which further reduced the vaginal lesion,followed by after-loading radiotherapy of 30 gy in 5 fractions with an individually designed vaginal *** months later,magnetic resonance imaging showed a slight thickening CONCLUSION Primary vaginal adenocarcinoma is rare,and prognosis is poor in most vaginal cancers of locally advanced stages,which cannot be treated with radical *** tumor control can be achieved with an individualized vaginal applicator that allows administration of a higher radical dose to the tumor area while protecting normal tissues.

关键词： Primary vaginal adenocarcinoma After-loading radiotherapy Vaginal applicator Tumor control Case report

CO_(2)腐蚀-应力耦合下固井水泥环密封完整性

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钻井液与完井液 2024年第2期41卷 220-230页

作者：武治强武广瑷幸雪松中海油研究总院有限责任公司北京100028

CO_(2)地质封存过程中,与地层围岩中的水反应后腐蚀着固井水泥环,腐蚀损伤和套管内压(应力)耦合作用极大地影响着水泥环的密封完整性。基于CO_(2)腐蚀实验,获得不同腐蚀程度水泥石材料力学性能参数,采用混凝土损伤塑性(CDP)本构模型和Mo... 详细信息

CO_(2)地质封存过程中,与地层围岩中的水反应后腐蚀着固井水泥环,腐蚀损伤和套管内压(应力)耦合作用极大地影响着水泥环的密封完整性。基于CO_(2)腐蚀实验,获得不同腐蚀程度水泥石材料力学性能参数,采用混凝土损伤塑性(CDP)本构模型和Mohor-Coulomb准则描述腐蚀前后水泥环的应力-应变行为,利用ABAQUS软件建立考虑CO_(2)腐蚀与应力耦合作用的井筒组合体(套管-水泥环-地层围岩)有限元分析模型,分析和探讨了套管内压和腐蚀时间对水泥环完整性的影响。结果表明,较高套管内压下,井筒水泥环发生弹塑性变形,出现结构损伤,套管与水泥环界面易形成微间隙;受腐蚀和套管内压的耦合作用,水泥环更易于出现完整性失效问题,相比较于未腐蚀水泥环,腐蚀水泥环受压后径向应力、等效塑性应变、微间隙以及拉伸和压缩损伤均较大,与之相反,塑性半径是减小的;微间隙与拉伸和压缩损伤受腐蚀时间的影响不明显。

关键词：水泥环 CO_(2)腐蚀密封完整性塑性变形微间隙

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京津冀协同创新的进展评价与优化策略研究

城市问题 2024年第3期 46-54页

作者：吴爱芝李国平北京大学图书馆北京大学首都发展研究院北京大学政府管理学院

协同创新是实现京津冀协同发展的重要途径和有力抓手,对2013年以来京津冀协同创新进展进行评价与分析,有助于促进京津冀协同高质量发展。以京津冀协同创新的目标为导向,按照数据可连续获取的原则,构建京津冀协同创新指数,分析2013—202... 详细信息

协同创新是实现京津冀协同发展的重要途径和有力抓手,对2013年以来京津冀协同创新进展进行评价与分析,有助于促进京津冀协同高质量发展。以京津冀协同创新的目标为导向,按照数据可连续获取的原则,构建京津冀协同创新指数,分析2013—2022年京津冀协同创新指数的变化趋势,从省级和市级两个层面评价京津冀城市群内部协同创新的进展情况,并在此基础上提出政策建议。

关键词：京津冀协同创新进展评价优化策略

1,3-氧硫戊环为受体的Hg^(2+)荧光探针的设计、合成及性能

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光谱学与光谱分析 2024年第7期44卷 1913-1917页

作者：梁庆祥周五吴爱斌舒文明余维初长江大学化学与环境工程学院化学系湖北荆州434023 长江大学非常规油气协同创新中心湖北荆州434023 油气田清洁生产与污染物控制湖北省工程研究中心湖北荆州434023

Hg^(2+)是毒性最强的重金属离子之一,会造成空气、土壤和水的污染,严重损害人体健康,开发有效的分析方法检测环境体系中的Hg^(2+)尤为重要。荧光探针因其灵敏度高、选择性好、响应速度快、可实时在线检测等优点,已广泛应用于Hg^(2+)检... 详细信息

Hg^(2+)是毒性最强的重金属离子之一,会造成空气、土壤和水的污染,严重损害人体健康,开发有效的分析方法检测环境体系中的Hg^(2+)尤为重要。荧光探针因其灵敏度高、选择性好、响应速度快、可实时在线检测等优点,已广泛应用于Hg^(2+)检测。以Hg^(2+)促进硫代缩醛的去保护反应设计合成了一种全新的以1,3-氧硫戊环为受体的开启型Hg^(2+)荧光探针[2-(pyren-1-yl)-1,3-oxathiolane,POX],通过^(1)H NMR、^(13)C NMR和HRMS对POX结构进行表征,考察了POX在CH_(3)CH_(2)OH/H_(2)O中对Hg^(2+)的选择性、竞争性、浓度滴定、pH滴定、时间依赖性、检出限和识别机理等。研究结果表明,POX可在较宽的pH范围内对Hg^(2+)快速识别,并表现出高度的选择性和灵敏度;向POX中加入Hg^(2+)后,在386 nm处出现明显的荧光发射峰,表明POX对Hg^(2+)呈现出显著的荧光“开启”效应,其识别过程几乎不受其他金属离子干扰;荧光滴定实验表明POX在Hg^(2+)浓度为0~6.5μmol·L^(-1)范围内具有良好的线性响应(R^(2)=0.9994),检出限为0.168μmol·L^(-1),在实际水样中检测Hg^(2+)的RSD小于2.92%。由于POX合成简单、原料易得且pH适用范围较广,可作为定性和定量检测环境中Hg^(2+)的潜在工具。

关键词：荧光探针 Hg^(2+) 1,3-氧硫戊环荧光开启

采用固体硅酸钠激发的一步法地质聚合物在软土固化中的适用性研究

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岩土力学 2024年第7期45卷 2072-2084页

作者：郑溢雯吴俊杨爱武李博顾珑上海工程技术大学城市轨道交通学院上海201620 上海师范大学建筑工程学院上海201418 东华大学环境科学与工程学院上海201620 温州理工学院建筑与能源工程学院浙江温州325000 中央军委后勤保障部安置住房保障中心北京100036

为解决水泥固化软土早期强度不足及制备水泥时高污染、高能耗及高成本等问题,采用固体硅酸钠(Na_(2)O·SiO_(2),简称NS)激发双先驱剂(粉煤灰(fly ash),简称FA)和磨细高炉矿渣(ground granulated blast furnace slag,简称GGBFS)制备一步... 详细信息

为解决水泥固化软土早期强度不足及制备水泥时高污染、高能耗及高成本等问题,采用固体硅酸钠(Na_(2)O·SiO_(2),简称NS)激发双先驱剂(粉煤灰(fly ash),简称FA)和磨细高炉矿渣(ground granulated blast furnace slag,简称GGBFS)制备一步法地质聚合物浆料(one-partgeopolymer,简称OPG)。研究FA掺量、NS摩尔数、碱激发剂浓度、水灰比等因素对地质聚合物浆料物理及力学性能的影响规律。在此基础上,开展优化配比试验,确定可作为土壤固化剂的地质聚合物最优配比。然后,将综合指标最优的地质聚合物配比用以固化软土。进一步研究双先驱剂中FA/GGBFS质量比和养护龄期对固化软土无侧限抗压强度(unconfined compressive strength,简称UCS)、孔隙率和孔径分布的影响。通过压汞法(mercury intrusion porosimetry,简称MIP)和扫描电子显微镜-能谱仪(scanning electron microscope-energy dispersive spectrometer,简称SEM-EDS)对试验进行微观分析,揭示其固化机制。研究结果表明:固体NS激发下的一步法地质聚合物能有效加固软土,其生成的水化凝胶物(N-A-S-H、C-A-H、C-S-H和C-A-S-H)能有效黏结土颗粒,从而促进形成致密固化土骨架。FA/GGBFS为0.1、水灰比为0.8、NS摩尔数为1.0、碱激发剂浓度为3 mol/L是固体硅酸钠激发的一步法地质聚合物固化软土的最佳配比,其固化软土的28 d无侧限抗压强度可达4.4 MPa,且具有良好的工作性。本研究扩展固体硅酸钠激发的一步法地质聚合物在深层搅拌技术中的应用,为软土地基的加固处理提供理论基础指导。

关键词：固体硅酸钠一步法地质聚合物微观分析无侧限抗压强度固化机制

面向产能优化的地下金属矿山安全保障条件评价研究

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世界有色金属 2024年第18期 142-144页

作者：吴爱军内蒙古呼伦贝尔根河市得耳布尔镇呼伦贝尔山金矿业有限公司内蒙古呼伦贝尔162600

本文旨在以解决地下金属矿山的产能问题,建立安全保障为目标,建立安全保障条件评价体系,利用熵权-层次分析法综合分析建立评价指标体系计算模型,设计计算过程并对矩阵一致性进行论证。依托于国内某铅锌矿为实际案例工程,基于论证所得计... 详细信息

本文旨在以解决地下金属矿山的产能问题,建立安全保障为目标,建立安全保障条件评价体系,利用熵权-层次分析法综合分析建立评价指标体系计算模型,设计计算过程并对矩阵一致性进行论证。依托于国内某铅锌矿为实际案例工程,基于论证所得计算模型与评价体系,评价其在产能优化目标引导下的安全保障能力现状,并在实际评估的基础之上验证安全保障评价结果的完成能力,另从中研究分析得出在未来三年内该矿山的最佳产能目标。

关键词：产能优化地下金属矿山安全保障铅锌矿评价指标体系