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Examining the Use of Scott’s Formula and Link Expiration Time Metric for Vehicular Clustering
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作者 Fady Samann Shavan Askar 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第3期2421-2444,共24页
Implementing machine learning algorithms in the non-conducive environment of the vehicular network requires some adaptations due to the high computational complexity of these algorithms.K-clustering algorithms are sim... Implementing machine learning algorithms in the non-conducive environment of the vehicular network requires some adaptations due to the high computational complexity of these algorithms.K-clustering algorithms are simplistic,with fast performance and relative accuracy.However,their implementation depends on the initial selection of clusters number(K),the initial clusters’centers,and the clustering metric.This paper investigated using Scott’s histogram formula to estimate the K number and the Link Expiration Time(LET)as a clustering metric.Realistic traffic flows were considered for three maps,namely Highway,Traffic Light junction,and Roundabout junction,to study the effect of road layout on estimating the K number.A fast version of the PAM algorithm was used for clustering with a modification to reduce time complexity.The Affinity propagation algorithm sets the baseline for the estimated K number,and the Medoid Silhouette method is used to quantify the clustering.OMNET++,Veins,and SUMO were used to simulate the traffic,while the related algorithms were implemented in Python.The Scott’s formula estimation of the K number only matched the baseline when the road layout was simple.Moreover,the clustering algorithm required one iteration on average to converge when used with LET. 展开更多
关键词 CLUsTERING vehicular network scott’s formula FastPAM
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Reciprocity Relation between Alternative Gravity Formulas
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作者 Hans Hermann Otto 《Journal of Applied Mathematics and Physics》 2024年第4期1432-1440,共9页
We compare Newton’s force law of universal gravitation with a corrected simple approach based on Bhandari’s recently presented work, where the gravitation constant G is maintained. A reciprocity relation exists betw... We compare Newton’s force law of universal gravitation with a corrected simple approach based on Bhandari’s recently presented work, where the gravitation constant G is maintained. A reciprocity relation exists between both alternative gravity formulas with respect to the distances between mass centers. We conclude a one-to-one mapping of the two gravitational formulas. We don’t need Einstein’s construct of spacetime bending by matter. 展开更多
关键词 Gravity formulas Reciprocity Distance Relation NEWTON EINsTEIN Bhandari Higgs Field Dirac’s Large Number
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s-对数凸函数的Hermite-Hadamard型积分不等式 被引量:11
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作者 席博彦 祁锋 《数学物理学报(A辑)》 CSCD 北大核心 2015年第3期515-524,共10页
该文定义了"s-对数凸函数"的概念,并给出了可微s-对数凸函数的若干个HermiteHadamard型积分不等式,作为应用给出了平均数的几个不等式.
关键词 积分不等式 积分等式 hermite-Hadamard积分不等式 凸函数 s-对数凸函数
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平方s-凸函数的Hermite-Hadamard型不等式 被引量:1
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作者 时统业 李军 《河南教育学院学报(自然科学版)》 2017年第2期1-4,共4页
利用s-凸函数与平方s-凸函数的关系,或者从平方s-凸函数的定义出发,建立了平方s-凸函数的Hermite-Hadamard型不等式.
关键词 平方s-凸函数 s-凸函数 hermite-Hadamard型不等式
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立方s-凸函数的Hermite-Hadamard型积分不等式 被引量:6
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作者 宝音特古斯 刘海磊 +1 位作者 高丹丹 双叶 《内蒙古民族大学学报(自然科学版)》 2018年第3期185-188,共4页
凸函数的重要性及应用价值已经众所周知,尤其在一些不等式的研究和应用中,凸函数发挥着重要作用.本文定义了立方s-凸函数的概念,并研究了立方s-凸函数的Hermite-Hadamard型积分不等式,得到了若干个结果.
关键词 s-凸函数 立方s-凸函数 hermite-Hadamard型积分不等式
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s-凸函数Hermite-Hadamard-Fejér型积分不等式 被引量:2
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作者 张天宇 彭婷 尹红萍 《内蒙古民族大学学报(自然科学版)》 2022年第5期369-373,共5页
研究了s-凸函数的Hermite-Hadamard-Fejér型积分不等式,利用s-凸函数的基本性质推出新的关于s-凸函数Hermite-Hadamard-Fejér型积分不等式,得到了若干个结果。
关键词 凸函数 s-凸函数 hermite-Hadamard-Fejér型积分不等式
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调和h-凸函数和调和平方s-凸函数的Fejér和Hermite-Hadamard型不等式
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作者 时统业 周国辉 《湖南理工学院学报(自然科学版)》 CAS 2016年第2期1-5,12,共6页
利用调和h-凸函数和调和平方s-凸函数的定义以及s-凸函数、调和s-凸函数、调和平方s-凸函数三者之间的相互关系,建立了调和h-凸函数和调和平方s-凸函数的Fejér型和Hermite-Hadamard型不等式.
关键词 调和h-凸函数 调和平方s-凸函数 s-凸函数 调和s-凸函数 Fejér和hermite-Hadamard型不等式
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Hermite-Hadamard-Fejér型不等式的推广及其应用
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作者 曾志红 时统业 曹俊飞 《佛山科学技术学院学报(自然科学版)》 CAS 2023年第5期11-17,共7页
利用Taylor公式和单调性的L'Hospital法则,给出了涉及高阶导数的Hermite-Hadamard-Fejér型不等式的推广。作为应用,建立了几个三角不等式。
关键词 hermite-Hadamard-Fejér型不等式 单调性的L'Hospital法则 高阶导数 TAYLOR公式 三角函数
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Bushen Yizhi Formula regulates the IRE1αpathway to alleviate endoplasmic reticulum stress in an Alzheimer’s disease rat model
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作者 XIRU XU YUAN FANG +5 位作者 BIAO ZHANG SHICHAO TENG XIANG WU JING ZHANG XIAOQUN GU MEIXIA MA 《BIOCELL》 SCIE 2023年第7期1595-1609,共15页
While the Bushen Yizhi Formula can treat Alzheimer’s disease(AD),the yet to be ascertained specific mechanism of action was explored in this work.Methods:Different concentrations of the Bushen Yizhi Formula and amylo... While the Bushen Yizhi Formula can treat Alzheimer’s disease(AD),the yet to be ascertained specific mechanism of action was explored in this work.Methods:Different concentrations of the Bushen Yizhi Formula and amyloid-beta peptide(Aβ)were used to treat rat pheochromocytoma cells(P12)and human neuroblastoma cells(SH-SY5Y).Cell morphological changes were observed to determine the in vitro cell damage.Cell Counting Kit(CCK)-8 assay and flow cytometry were employed to identify cell viability and apoptosis/cell cycle,respectively.Western blotting and immunohistochemistry were employed to measure the expressions of endoplasmic reticulum stress(ERS)-related proteins(GRP78 and CHOP),p-IRE1α,IRE1α,ASK1,p-JNK,JNK,Bax,Bcl-2,XBP-1,and Bim.Fura 2-acetoxymethyl ester(Fura-2/AM)was used to determine the intracellular calcium(Ca^(2+))concentration.Also,an AD model was constructed by injecting Aβinto the CA1 area of the hippocampus in Sprague Dawley rats.AD model rats were gavaged with different concentrations of Bushen Yizhi Formula for 14 consecutive days.The Morris water maze experiment was conducted to test the learning and memory of rats.Hematoxylin&Eosin(H&E)and Terminal-deoxynucleotidyl Transferase(TdT)-mediated dUTP Nick-End Labeling(TUNEL)staining were done to determine histopathological changes in the brain.Results:Bushen Yizhi Formula relieved the Aβ-induced effects including cell injury,decreased viability,increased apoptosis,G0/G1 phase cell cycle arrest,upregulation of GRP78,CHOP,p-IRE1α,p-JNK,Bax,XBP-1 and Bim,as well as down-regulation of Bcl-2.These results were also seen with IRE1αsilencing.While Aβsuppressed the learning and memory abilities of rats,the Bushen Yizhi Formula alleviated these effects of Aβ.Brain nerve cell injury induced by Aβcould also be treated with Bushen Yizhi Formula.Conclusion:Bushen Yizhi Formula could influence ERS through the IRE1αsignaling pathway to achieve its therapeutic effects on AD. 展开更多
关键词 Bushen Yizhi formula Alzheimer’s disease Endoplasmic reticulum stress IRE1α
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Generalizations of Hermite-Hadamard Type Inequalities Involving S-convex Functions 被引量:3
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作者 LIAN Tie-yan TANG Wei 《Chinese Quarterly Journal of Mathematics》 2018年第3期278-286,共9页
Some new Hermite-Hadamard type's integral equations and inequalities are established. The results in [3] and [6] which refined the upper bound of distance between the middle and left of the typical Hermite-Hadamar... Some new Hermite-Hadamard type's integral equations and inequalities are established. The results in [3] and [6] which refined the upper bound of distance between the middle and left of the typical Hermite-Hadamard's integral inequality are generalized. 展开更多
关键词 hermite-Hadamard's INTEGRAL INEQUALITY s-convex function Hslder's integralinequality
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Nonclassicality of a two-variable Hermite polynomial state 被引量:1
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作者 谭国斌 徐莉娟 马善钧 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第4期336-345,共10页
The nonclassicality of the two-variable Hermite polynomial state is investigated. It is found that the two-variable Hermite polynomial state can be considered as a two-mode photon subtracted squeezed vacuum state. A c... The nonclassicality of the two-variable Hermite polynomial state is investigated. It is found that the two-variable Hermite polynomial state can be considered as a two-mode photon subtracted squeezed vacuum state. A compact expression for the Wigner function is also derived analytically by using the Weyl-ordered operator invariance under similar transformations. Especially, the nonclassicality is discussed in terms of the negativity of the Wigner function. Then violations of Bell's inequality for the two-variable Hermite polynomial state are studied. 展开更多
关键词 NONCLAssICALITY hermite polynomial state Wigner function Bell's inequality
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Integral Inequalities of Hermite-Hadamard Type for Functions Whose 3rd Derivatives Are <i>s</i>-Convex 被引量:4
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作者 Ling Chun Feng Qi 《Applied Mathematics》 2012年第11期1680-1685,共6页
In the paper, the authors find some new inequalities of Hermite-Hadamard type for functions whose third derivatives are s-convex and apply these inequalities to discover inequalities for special means.
关键词 INTEGRAL INEQUALITY hermite-Hadamard’s INTEGRAL INEQUALITY s-Convex Function Derivative Mean
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A Multinomial Theorem for Hermite Polynomials and Financial Applications
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作者 Francois Buet-Golfouse 《Applied Mathematics》 2015年第6期1017-1030,共14页
Different aspects of mathematical finance benefit from the use Hermite polynomials, and this is particularly the case where risk drivers have a Gaussian distribution. They support quick analytical methods which are co... Different aspects of mathematical finance benefit from the use Hermite polynomials, and this is particularly the case where risk drivers have a Gaussian distribution. They support quick analytical methods which are computationally less cumbersome than a full-fledged Monte Carlo framework, both for pricing and risk management purposes. In this paper, we review key properties of Hermite polynomials before moving on to a multinomial expansion formula for Hermite polynomials, which is proved using basic methods and corrects a formulation that appeared before in the financial literature. We then use it to give a trivial proof of the Mehler formula. Finally, we apply it to no arbitrage pricing in a multi-factor model and determine the empirical futures price law of any linear combination of the underlying factors. 展开更多
关键词 hermite POLYNOMIALs Multi-Factor Model HILBERT space Mehler formula
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On the Weyl’s Lemma for Triharmonic Functions
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作者 ZHENG Run-jie ZENG Jia-min FANG Yi 《Chinese Quarterly Journal of Mathematics》 2024年第3期288-294,共7页
In this paper,by choosing some appropriate test functions,we prove the Weyl’s lemma for triharmonic functions based on the new type of mean value formulas.
关键词 Weyl’s lemma Harmonic functions Triharmonic functions Test functions Mean value formulas
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Generating Functions for Products of Special Laguerre 2D and Hermite 2D Polynomials 被引量:1
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作者 Alfred Wunsche 《Applied Mathematics》 2015年第12期2142-2168,共27页
The bilinear generating function for products of two Laguerre 2D polynomials with different arguments is calculated. It corresponds to the formula of Mehler for the generating function of products of two Hermite polyn... The bilinear generating function for products of two Laguerre 2D polynomials with different arguments is calculated. It corresponds to the formula of Mehler for the generating function of products of two Hermite polynomials. Furthermore, the generating function for mixed products of Laguerre 2D and Hermite 2D polynomials and for products of two Hermite 2D polynomials is calculated. A set of infinite sums over products of two Laguerre 2D polynomials as intermediate step to the generating function for products of Laguerre 2D polynomials is evaluated but these sums possess also proper importance for calculations with Laguerre polynomials. With the technique of operator disentanglement some operator identities are derived in an appendix. They allow calculating convolutions of Gaussian functions combined with polynomials in one- and two-dimensional case and are applied to evaluate the discussed generating functions. 展开更多
关键词 Laguerre and hermite Polynomials Laguerre 2D Polynomials Jacobi Polynomials Mehler formula sU(1 1)Operator Disentanglement Gaussian Convolutions
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Evaluation of Certain Integrals Involving the Product of Classical Hermite's Polynomials Using Laplace Transform Technique and Hypergeometric Approach
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作者 M.I.Qureshi Saima Jabee 《Analysis in Theory and Applications》 CSCD 2017年第4期355-365,共11页
In this paper some novel integrals associated with the product of classical Hermite's polynomials ∫-∞+∞(x2)mexp(-x2){Hr(x)}2dx,∫0∞exp(-x2)H2k(x)H2s+1(x)dx,∫0∞exp(-x2)H2k(x)H2s(x)dx and ∫0... In this paper some novel integrals associated with the product of classical Hermite's polynomials ∫-∞+∞(x2)mexp(-x2){Hr(x)}2dx,∫0∞exp(-x2)H2k(x)H2s+1(x)dx,∫0∞exp(-x2)H2k(x)H2s(x)dx and ∫0∞exp(-x2)H2k+1(x)H2s+1(x)dx, are evaluated using hypergeometric approach and Laplace transform method, which is a different approach from the approaches given by the other authors in the field of spe- cial functions. Also the results may be of significant nature, and may yield numerous other interesting integrals involving the product of classical Hermite's polynomials by suitable simplifications of arbitrary parameters. 展开更多
关键词 Gauss's summation theorem classical hermite's polynomials generalized hyperge-ometric function generalized Laguerre's polynomials.
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Hermite—Hadamard不等式的改进 被引量:5
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作者 李泽妤 徐美萍 宋国华 《黑龙江大学自然科学学报》 CAS 北大核心 2008年第3期297-300,共4页
利用文[3]建立的Hermite—Hadamard不等式,改进了文[5]对Lipschitz函数与文[1]插值函数的结果,将文[5]中的不等式(2,2)推广为:│(f(a)+f(b))/2-(1/(b-a))∫baf(x)dx│≤(Mt/4)(b-a)即以M4代替了文[5]的M3.同时利用关于区间中点对称的点... 利用文[3]建立的Hermite—Hadamard不等式,改进了文[5]对Lipschitz函数与文[1]插值函数的结果,将文[5]中的不等式(2,2)推广为:│(f(a)+f(b))/2-(1/(b-a))∫baf(x)dx│≤(Mt/4)(b-a)即以M4代替了文[5]的M3.同时利用关于区间中点对称的点,推广了Hermite—Hadamard不等式,得到了以更精确的结果;进一步说明推广的结果是可以实现的。 展开更多
关键词 凸函数 LIPsCHITZ函数 hermite—Hadamard不等式
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基于Hermite插值的高精度数值积分公式 被引量:8
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作者 龙爱芳 胡军浩 《华侨大学学报(自然科学版)》 CAS 北大核心 2013年第3期349-352,共4页
构造Hermite插值多项式,得到插值型求积公式.分析积分中值定理中间点的渐近性,得到具有更高精度的数值求积公式.对数值积分公式中的导数进行处理,最终得到不用计算导数值,只需计算节点处函数值的高精度数值求积公式.
关键词 hermite插值 中间点 渐近性 高精度
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New Color-Difference Formula Based on CIECAM97s 被引量:1
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作者 宦晖 李为 赵达尊 《Journal of Beijing Institute of Technology》 EI CAS 2001年第2期149-152,共4页
To deduce a new color difference formula based on CIE 1997 Color Appearance Model(CIECAM97s), a color space J a 1 b 1 is first constructed with color appearance descriptors J,a,b in CIECAM97s. The new f... To deduce a new color difference formula based on CIE 1997 Color Appearance Model(CIECAM97s), a color space J a 1 b 1 is first constructed with color appearance descriptors J,a,b in CIECAM97s. The new formula is then deduced in the space and named CDF CIECAM97s. The factors for lightness, chroma and hue correction in the formula are derived by linear regression according to BFD? CP data sets. It is found by statistical analysis that CDF CIECAM97s is in closer accordance with the visual assessments when compared with CMC(1∶1), CIE94 and CIE L *a *b * color difference formulae. Based on color appearance model, the new color difference formula can be used to predict color difference perception in a varity of different viewing conditions. 展开更多
关键词 CIECAM97s color difference formulae color space
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基于Ackermann's formula的类反斜线回滞系统滑模控制 被引量:1
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作者 张达科 胡跃明 郭华芳 《机械工程学报》 EI CAS CSCD 北大核心 2005年第1期11-15,共5页
回滞现象广泛地存在于许多机械控制领域。由于回滞特性具有不可微性,从而使得对回滞系统的控制变得困难和复杂,同时由于回滞可能引起系统的振荡,甚至造成系统的不稳定,因此有必要对回滞系统的有效控制进行研究。考虑到回滞系统建模仍然... 回滞现象广泛地存在于许多机械控制领域。由于回滞特性具有不可微性,从而使得对回滞系统的控制变得困难和复杂,同时由于回滞可能引起系统的振荡,甚至造成系统的不稳定,因此有必要对回滞系统的有效控制进行研究。考虑到回滞系统建模仍然是个研究的领域,针对类反斜线回滞系统进行研究。把类反斜线回滞模型分解为确定的线性部分和已知上界的不确定非线性部分,利用Ackermann's formula给出了类反斜线回滞系统的滑模控制律。仿真表明此滑模控制律是有效的,同时此滑模控制保证了整个系统的稳定性。 展开更多
关键词 类反斜线回滞 滑模控制 Ackermann’s formula
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