首页 > 最新文献

Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)最新文献

英文 中文
A solution of travelling salesman problem by a method of correlative-regression analysis 用相关回归分析方法求解旅行商问题
V. Shut, I. Prozherin
In this paper, the travelling salesman problem and its solution by a method of correlative regression analysis are considered. The mathematical model of the given method is considered. The method allows the problem to be solved by using a minimum memory size of /spl sim/o(n/sup 2/+3n) cells and with a small run time /spl sim/o(n).
本文研究了旅行商问题及其相关回归分析方法的求解。考虑了该方法的数学模型。该方法允许通过使用最小内存大小/spl sim/o(n/sup 2/+3n)单元和较小的运行时间/spl sim/o(n)来解决问题。
{"title":"A solution of travelling salesman problem by a method of correlative-regression analysis","authors":"V. Shut, I. Prozherin","doi":"10.1109/IDAACS.2001.942028","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.942028","url":null,"abstract":"In this paper, the travelling salesman problem and its solution by a method of correlative regression analysis are considered. The mathematical model of the given method is considered. The method allows the problem to be solved by using a minimum memory size of /spl sim/o(n/sup 2/+3n) cells and with a small run time /spl sim/o(n).","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124366847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Computational grids to solve large scale optimization problems with uncertain data 计算网格解决不确定数据下的大规模优化问题
C. Triki, L. Grandinetti
In this paper, we discuss the use of computational grids to solve stochastic optimization problems. These problems are generally difficult to solve and are often characterized by a high number of variables and constraints. Furthermore, for some applications, it is required to achieve a real-time solution. Obtaining reasonable results is a difficult objective without the use of high-performance computing. We present a grid-enabled path-following algorithm and we discuss some experimental results.
在本文中,我们讨论了使用计算网格来解决随机优化问题。这些问题通常很难解决,并且通常以大量变量和约束为特征。此外,对于某些应用程序,需要实现实时解决方案。如果不使用高性能计算,获得合理的结果是一个困难的目标。我们提出了一种网格路径跟踪算法,并讨论了一些实验结果。
{"title":"Computational grids to solve large scale optimization problems with uncertain data","authors":"C. Triki, L. Grandinetti","doi":"10.1109/IDAACS.2001.941995","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.941995","url":null,"abstract":"In this paper, we discuss the use of computational grids to solve stochastic optimization problems. These problems are generally difficult to solve and are often characterized by a high number of variables and constraints. Furthermore, for some applications, it is required to achieve a real-time solution. Obtaining reasonable results is a difficult objective without the use of high-performance computing. We present a grid-enabled path-following algorithm and we discuss some experimental results.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122254039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Interactive software tool for data visualisation 用于数据可视化的交互式软件工具
M. Kolodnytsky, A. Kovalchuk
After a brief enumeration of the software for data visualisation, we give a set of demands for this sort of software. We discuss the user's interactive and adaptive interface of the scientific data visualisation software system entitled "Graph Server", which was designed and developed by the authors. Examples of the interface's control panel and samples of screenshots of 2D/3D hodograph curves, 2D/3D histograms, 3D surfaces and 2D areas are presented.
在简要列举了数据可视化软件之后,我们给出了对这类软件的一组需求。讨论了作者自行设计开发的科学数据可视化软件系统“Graph Server”的用户交互和自适应界面。给出了界面控制面板的示例以及2D/3D曲线、2D/3D直方图、3D表面和2D区域的截屏示例。
{"title":"Interactive software tool for data visualisation","authors":"M. Kolodnytsky, A. Kovalchuk","doi":"10.1109/IDAACS.2001.941991","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.941991","url":null,"abstract":"After a brief enumeration of the software for data visualisation, we give a set of demands for this sort of software. We discuss the user's interactive and adaptive interface of the scientific data visualisation software system entitled \"Graph Server\", which was designed and developed by the authors. Examples of the interface's control panel and samples of screenshots of 2D/3D hodograph curves, 2D/3D histograms, 3D surfaces and 2D areas are presented.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133116057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Technical base for separated rooms climate automatic control 分房气候自动控制技术基础
K. Spasokukotskiy, D. Jelondz, H. Traenkler
In this paper the problems of automatic climate control of separated living rooms and the technical set for data acquisition are discussed. Also the operational processes which deal with problem solving are considered.
本文讨论了分离式客厅气候自动控制的问题及数据采集的技术设置。还考虑了处理问题解决的操作过程。
{"title":"Technical base for separated rooms climate automatic control","authors":"K. Spasokukotskiy, D. Jelondz, H. Traenkler","doi":"10.1109/IDAACS.2001.942006","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.942006","url":null,"abstract":"In this paper the problems of automatic climate control of separated living rooms and the technical set for data acquisition are discussed. Also the operational processes which deal with problem solving are considered.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122227789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Informational and analytical system for support of financial and credit activity 支持金融和信贷活动的信息和分析系统
E. Marecka
Mathematical models are proposed for the consolidation of credits which are repaid in complete instalments. The developed models take into account various ways of charging interest: simple or compound interest, and fixed or floating interest rates. This mathematical apparatus enables us to compare the costs of credits and to find the optimum conditions for granting the credits.
提出了分期偿还的信贷合并的数学模型。开发的模型考虑了各种收取利息的方式:单利或复利,固定利率或浮动利率。这个数学工具使我们能够比较信用的成本,并找到授予信用的最佳条件。
{"title":"Informational and analytical system for support of financial and credit activity","authors":"E. Marecka","doi":"10.1109/IDAACS.2001.942027","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.942027","url":null,"abstract":"Mathematical models are proposed for the consolidation of credits which are repaid in complete instalments. The developed models take into account various ways of charging interest: simple or compound interest, and fixed or floating interest rates. This mathematical apparatus enables us to compare the costs of credits and to find the optimum conditions for granting the credits.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127568397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Minimization of parameters number describing accuracy of data acquisition system 描述数据采集系统精度的参数数的最小化
A. P. Bykov, V. Didenko, A. Movchan, J. S. Solodov
The paper considers the problem of the minimization of the number of parameters necessary to describe the accuracy of data acquisition systems. The minimization is fulfilled on the example of AD7714 /spl Sigma/-/spl Delta/ ADC by Analog Devices.
本文考虑了描述数据采集系统精度所需参数数量的最小化问题。以adi公司的AD7714 /spl Sigma/-/spl Delta/ ADC为例,实现了最小化。
{"title":"Minimization of parameters number describing accuracy of data acquisition system","authors":"A. P. Bykov, V. Didenko, A. Movchan, J. S. Solodov","doi":"10.1109/IDAACS.2001.942000","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.942000","url":null,"abstract":"The paper considers the problem of the minimization of the number of parameters necessary to describe the accuracy of data acquisition systems. The minimization is fulfilled on the example of AD7714 /spl Sigma/-/spl Delta/ ADC by Analog Devices.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"94 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114131019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Iterative algorithm for discrete orthogonal transformation of signals in base of two-dimensional functions 二维函数基下信号离散正交变换的迭代算法
A. Doudkin, A.G. Machnev, A.M. Selikhanovich
A parallel algorithm for the discrete orthogonal transformation of 2-D signals is proposed. The following two main features distinguish it from known algorithms. The number of operations of multiplication and addition is smaller than those used in known algorithms and coefficients of transformation are computed at once without executing 1D transformations. The structure of the algorithm is also convenient for VLSI implementation.
提出了一种二维信号离散正交变换的并行算法。以下两个主要特征将其与已知算法区分开来。该方法的乘法和加法运算次数比已知算法少,变换系数一次计算,不需要执行一维变换。该算法的结构也便于大规模集成电路的实现。
{"title":"Iterative algorithm for discrete orthogonal transformation of signals in base of two-dimensional functions","authors":"A. Doudkin, A.G. Machnev, A.M. Selikhanovich","doi":"10.1109/IDAACS.2001.941983","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.941983","url":null,"abstract":"A parallel algorithm for the discrete orthogonal transformation of 2-D signals is proposed. The following two main features distinguish it from known algorithms. The number of operations of multiplication and addition is smaller than those used in known algorithms and coefficients of transformation are computed at once without executing 1D transformations. The structure of the algorithm is also convenient for VLSI implementation.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114426344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
An application of "neocognitron" neural network for integral chip image processing “新认知”神经网络在集成芯片图像处理中的应用
R. Sadykhov, M. Vatkin
The architecture of the "neocognitron" neural network in the task of searching for structural units in a gray scale image of an integrated circuit is considered. The updated rule for activation of the network neurons invariant to distortions of brightness is represented. The comparative outcomes of recognition have shown the advantages of a neural network approach.
研究了在集成电路灰度图像中搜索结构单元的“新认知”神经网络结构。提出了对亮度畸变不影响网络神经元激活的更新规则。识别的比较结果显示了神经网络方法的优势。
{"title":"An application of \"neocognitron\" neural network for integral chip image processing","authors":"R. Sadykhov, M. Vatkin","doi":"10.1109/IDAACS.2001.942014","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.942014","url":null,"abstract":"The architecture of the \"neocognitron\" neural network in the task of searching for structural units in a gray scale image of an integrated circuit is considered. The updated rule for activation of the network neurons invariant to distortions of brightness is represented. The comparative outcomes of recognition have shown the advantages of a neural network approach.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122302594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sensor systems for equipment for determination of stochastic electromagnetic field 随机电磁场测定设备用传感器系统
V. Nichoga, L. Dikmarova, P. Dub, Z. Kaczmarek
A sensor system for equipment used for the determination of stochastic electromagnetic field parameters is considered. The system is intended for underwater electromagnetic probing on the sea shelf. New highly sensitive induction sensors elaborated for this purpose are described. A new procedure for determining the orientation of sensors at the sea bottom is proposed.
研究了一种用于确定随机电磁场参数的设备传感器系统。该系统适用于海架上的水下电磁探测。描述了为此目的而设计的新型高灵敏度感应传感器。提出了一种确定海底传感器方位的新方法。
{"title":"Sensor systems for equipment for determination of stochastic electromagnetic field","authors":"V. Nichoga, L. Dikmarova, P. Dub, Z. Kaczmarek","doi":"10.1109/IDAACS.2001.942001","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.942001","url":null,"abstract":"A sensor system for equipment used for the determination of stochastic electromagnetic field parameters is considered. The system is intended for underwater electromagnetic probing on the sea shelf. New highly sensitive induction sensors elaborated for this purpose are described. A new procedure for determining the orientation of sensors at the sea bottom is proposed.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121147780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Steganography effects in various formats of images. A preliminary study 隐写效果在各种格式的图像。初步研究
G. Mastronardi, M. Castellano, F. Marino
In this paper, the effects of steganography in different image formats (BMP, GIF, JPEG and DWT coded) are studied. With respect to these formats, we try to give an answer to the following questions. (1) How many bits of noise (i.e. the textual secret message) can be injected without perceptually deteriorating the quality of the image? (2) How and where should one inject these bits in order to achieve the best trade-off in terms of the length of the textual message and the preserved quality of the image?.
本文研究了不同图像格式(BMP、GIF、JPEG和DWT编码)下的隐写效果。关于这些格式,我们试图回答以下问题。(1)可以注入多少位噪声(即文本秘密信息)而不会在感知上降低图像质量?(2)为了在文本信息的长度和图像的保存质量方面达到最佳的平衡,应该如何以及在哪里注入这些比特?
{"title":"Steganography effects in various formats of images. A preliminary study","authors":"G. Mastronardi, M. Castellano, F. Marino","doi":"10.1109/IDAACS.2001.941993","DOIUrl":"https://doi.org/10.1109/IDAACS.2001.941993","url":null,"abstract":"In this paper, the effects of steganography in different image formats (BMP, GIF, JPEG and DWT coded) are studied. With respect to these formats, we try to give an answer to the following questions. (1) How many bits of noise (i.e. the textual secret message) can be injected without perceptually deteriorating the quality of the image? (2) How and where should one inject these bits in order to achieve the best trade-off in terms of the length of the textual message and the preserved quality of the image?.","PeriodicalId":419022,"journal":{"name":"Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126992085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
期刊
Proceedings of the International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications. IDAACS'2001 (Cat. No.01EX510)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1