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28 条 记 录,以下是 1-28

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An Image Encryption Scheme Based on Lorenz Hyperchaotic System and RSA Algorithm
SECURITY AND COMMUNICATION NETWORKSLin, Riguang Li, Sheng  出版年:2021
This research proposes a new image encryption scheme based on Lorenz hyperchaotic system and Rivest-Shamir-Adleman (RSA) algorithm. Firstly, the initial values of the Lorenz hyperchaotic system are generated by RSA algor...
Empirical assessment of carbon emissions in Guangdong Province within the framework of carbon peaking and carbon neutrality: a lasso-TPE-BP neural network approach
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCHChen, Ruihan Ye, Minhua Li, Zhi Ma, Zebin Yang, Derong Li, Sheng  出版年:2023
The escalating global greenhouse gas emission crisis necessitates a robust scientific carbon accounting framework and innovative development approaches. Achieving emission peaks remains the primary goal for emission redu...
Uniqueness of entire functions sharing two values with their difference operators
ADVANCES IN DIFFERENCE EQUATIONSLi, Sheng Mei, Duan Chen, BaoQin  出版年:2017
In this paper, we mainly discuss the uniqueness problem when an entire function shares 0 CM and nonzero complex constant a IM with its difference operator. We also consider the general case where they share two distinct ...
GSSA: A Network for Short- to Medium-Term Regional Sea Surface Temperature Prediction
IEEE GEOSCIENCE AND REMOTE SENSING LETTERSXiao, Ling Li, Sheng Chen, Baoqin  出版年:2024
Accurate prediction of sea surface temperature (SST) is critical in marine sciences and related disciplines. The task is rendered challenging by complex environmental factors and the inherent nonlinearity of time. Curren...
Fault diagnosis of electric submersible pump tubing string leakage
2021 5TH INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY, ENVIRONMENT AND CHEMICAL SCIENCE (AEECS 2021)Yang, Jiali Li, Wei Chen, Jiarui Li, Sheng  出版年:2021
With the rapid development of the offshore oil industry, electric submersible pumps have become more and more important. They are the main pumping equipment in oil well production and have huge advantages in terms of dis...
Fault Identification of Electric Submersible Pumps Based on Unsupervised and Multi-Source Transfer Learning Integration
SUSTAINABILITYYang, Peihao Chen, Jiarui Wu, Lihao Li, Sheng  出版年:2022
The ratio between normal data and fault data generated by electric submersible pumps (ESPs) in production is prone to imbalance, and the information carried by the fault data generally as a minority sample is easily over...
Uniqueness of meromorphic solutions sharing values with a meromorphic function to <i>w</i>(<i>z</i>+1)<i>w</i>(<i>z</i>-1) = <i>h</i>(<i>z</i>)<i>w<SUP>m</SUP></i>(z<i>)</i>
ADVANCES IN DIFFERENCE EQUATIONSChen, BaoQin Li, Sheng  出版年:2019
For the nonlinear difference equations of the form w(z + 1)w(z -1) = h(z)w(m)(z), where h(z) is a nonzero rational function and m = +/- 2,+/- 1, 0, we show that its transcendental meromorphic solution is mainly determine...
Can Setting Up a Carbon Trading Mechanism Improve Urban Eco-Efficiency? Evidence from China
SUSTAINABILITYGe, Wenjun Yang, Derong Chen, Weineng Li, Sheng  出版年:2023
The Carbon Emissions Trading Pilot Policy (CETP) has attracted more scholarly attention. However, most existing studies are only singularly focused on carbon emission reduction or economic development. More research is n...
新建5G基站的站址规划研究——基于优化算法及动态规划模型
《应用数学进展》黄捷宇 董嘉辉 武文轩 李升  出版年:2022
针对新一代5G通信基站的建设及其站址规划问题,本文提出了一种基于粒子群优化算法与模拟退火算法的动态规划模型的站址规划方法。该模型考虑了基站覆盖半径、基站类型以及信号覆盖范围等因素,并利用广东湛江地区原有的基站业务数据来进...
关键词:5G基站选址  粒子群优化算法  模拟退火算法  被引量:2
Characteristic Selection and Prediction of Octane Number Loss in Gasoline Refinement Process
2021 5TH INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY, ENVIRONMENT AND CHEMICAL SCIENCE (AEECS 2021)Li, Wei Yang, Jiali Yang, Peihao Li, Sheng  出版年:2021
In the refining process of gasoline, accurate prediction of the octane number loss is conducive to production management to ensure the octane content in gasoline. Therefore, the relevant research has important theoretica...
Uniqueness of meromorphic solutions of the difference equation R1(z)f(z+1)+R2(z)f(z)=R3(z)
ADVANCES IN DIFFERENCE EQUATIONSLi, Sheng Chen, BaoQin  出版年:2019
This paper mainly concerns the uniqueness of meromorphic solutions of first order linear difference equations of the form where R1(z)?0, R2(z), R3(z) are rational functions. Our results indicate that the finite order tra...
可拓逻辑和可拓思维对决策树算法的分析与优化
《广东工业大学学报》朱弘扬 丁怡 柴华金 李升  出版年:2019
为从理论层次上深度解析决策树分类算法的逻辑可行性,根据可拓理论中可拓逻辑和可拓思维的全新视角,对构建决策树过程中节点的选择、规则提取和预测等步骤,进行理论上的分析和评价.以可拓思维中的菱形思维模式来分析决策树算法中节点的...
关键词:可拓逻辑  可拓思维  决策树算法  矛盾问题  被引量:2
A Fault Identification Method for Electric Submersible Pumps Based on DAE-SVM
SHOCK AND VIBRATIONYang, Peihao Chen, Jiarui Zhang, Hairong Li, Sheng  出版年:2022
The purpose of this study was to investigate how to detect abnormalities in electric submersible pumps (ESPs) in advance and how to classify the faults by monitoring the production data before pumps break down. Additiona...
一类差分潘勒韦方程亚纯解的性质
《应用数学进展》陈宝琴 李升  出版年:2018
本文研究了一类的形如w(z+1)w(z?1) = h(z)w2(z)的差分潘勒韦方程,其中h(z)∈ S(w)为有理函数,得到以下结论:1) 若w只有有限个零点和极点,则ρ (w)∈{1,2}且w = Rea2z2+a1...
关键词:差分潘勒韦方程  增长级  极点  零点  被引量:0
Attention Adaptive Temporal Graph Convolutional Network for Long-Term Seasonal Sea Surface Temperature Forecasting
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSINGXiao, Ling Yang, Peihao Wang, Yuxue Li, Sheng Chen, Baoqin  出版年:2024
Sea surface temperature (SST) plays a crucial role in the global meteorological system, particularly as long-term seasonal variations are significant for analyzing SST anomalies and supporting long-term climate decision-...
Unicity of Meromorphic Solutions of the Pielou Logistic Equation
DISCRETE DYNAMICS IN NATURE AND SOCIETYLi, Sheng Chen, Baoqin  出版年:2020
THis paper mainly considers the unicity of meromorphic solutions of the Pielou logistic equation y(z + 1). ((R(z)y(z))/ (Q(z) + P(z)y(z))), where P(z), Q(z), and R(z) are nonzero polynomials. It shows that the finite ord...
与其导数分担两个公共值的亚纯函数的唯一性
《理论数学》陈宝琴 李志 李升  出版年:2018
本文研究了与其导数分担两个公共值的亚纯函数的唯一性,并证明了一些有趣的结果。
关键词:亚纯函数  Nevanlinna理论  唯一性  被引量:0
Typhoon localization detection algorithm based on TGE-YOLO
SCIENTIFIC REPORTSHe, Lan Xiao, Ling Yang, Peihao Li, Sheng  出版年:2025
To address the problems of complex cloud features in satellite cloud maps, inaccurate typhoon localization, and poor target detection accuracy, this paper proposes a new typhoon localization algorithm, named TGE-YOLO. It...
Properties of meromorphic solutions of first-order differential-difference equations
OPEN MATHEMATICSWu, Lihao Chen, Baoqin Li, Sheng  出版年:2023
For the first-order differential-difference equations of the form A(z)f (z + 1) + B(z)f '(z) + C(z)f (z) =F(z),where A(z), B(z), C(z), and F(z) are polynomials, the existence, growth, zeros, poles, and fixed points of th...
Spatial and Temporal Prediction of Ozone Concentration in the Pearl River Delta Region Based on a Dynamic Graph Convolutional Network
SSRNYang, Tongshu Li, Sheng Chen, Baoqin  出版年:2024
The variation of ozone (O3) concentration is closely related to other meteorological factors such as temperature and wind speed, and there is significant dynamic uncertainty, making related research very complex and diff...
Research on Used Car Valuation Based on Gradient Descent Multiple Regression Model
2nd International Symposium on Mechanical Systems and Electronic Engineering, ISMSEE 2022Chen, Jian Zhang, Jingting Li, Sheng  出版年:2022
Due to the particularity of "one car, one situation" of used cars, there is always the problem of non-standard pricing in transactions. We comprehensively consider various factors affecting the price of used cars and pro...
面向数学专业的Python教学方案设计
《教育现代化》李志 李升  出版年:2019
结合Python语言的特点,和高校数学专业的需求,探讨数学专业为什么要开设Python语言,以及如何安排Python语言教学内容。并以培养计算思维为着眼点,讨论了Python语言教学方法的设计等问题。
关键词:Python语言  数学专业  计算思维  教学内容  教学方法  被引量:0
Gol’dberg-Grinshtein型对数导数估计
《理论数学》李升 陈宝琴  出版年:2017
通过应用改进的Kolokolniov引理,考虑Gol'dberg-Grinshtein型对数导数估计,将现有结果中的常数改进为4.5206。特别地,对零点和极点都是实数的亚纯函数,将相应的常数改进为3.8018。
关键词:亚纯函数  Nevanlinna理论  对数导数  被引量:0
基于自适应模拟退火算法的服务业智能排班系统
《电脑知识与技术》陈学文 陈锐瀚 李志 陆运勇 朱健君 唐奕泽 叶敏华 李升  出版年:2023
人员排班管理对于服务行业,特别是饭店、超市和零售店等领域具有重要意义。然而,目前在服务行业的排班管理领域,排班编制工作主要依赖于人工手动操作,这导致了排班表生成效率的低下问题。对于传统排班系统的架构问题,传统的单体架构随...
关键词:智能排班  自适应模拟退火  微服务架构  服务行业  被引量:0
大数据时代下数学建模课程教学改革探讨
《西部素质教育》陈宝琴 李升  出版年:2018
文章简要回顾了数学建模课程和数学建模竞赛在国内外的发展历程,并结合近年来我校开展数学建模竞赛活动和数学建模课程教学的实际状况,探讨了大数据时代下数学建模课程教学改革的必要性,并给出相关改革建议。
关键词:数学建模  建模竞赛  课程建设  被引量:0
Some unity results on entire functions and their difference operators related to 4 CM theorem
JOURNAL OF INEQUALITIES AND APPLICATIONSChen, BaoQin Li, Sheng  出版年:2020
This paper is to consider the unity results on entire functions sharing two values with their difference operators and to prove some results related to 4 CM theorem. The main result reads as follows: Let f (z) be a nonco...
基于竞赛引导的数学建模课程建设探讨
《现代职业教育》李升 陈宝琴 石雄辉  出版年:2018
简要回顾了数学建模课程和数学建模竞赛在国内外的发展历程,并结合近年来广东海洋大学数学与计算机学院,开展数学建模竞赛活动和数学建模课程教学的实际状况,探讨基于竞赛引导的数学建模课程建设的优缺点,并给出一些建议。
关键词:数学建模  建模竞赛  课程建设  被引量:0
Some results on entire functions that share one value with their difference operators
ADVANCES IN DIFFERENCE EQUATIONSChen, BaoQin Li, Sheng Chai, Fujie  出版年:2018
In this paper, we give some results on entire functions that share one value with their difference operators. In particular, we prove the following result, which can be regarded as a difference analogue of a result of J....
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