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Cultural Differences Between China and the West Behind“neijuan”
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作者 HUANG Wen-xi 《Journal of Literature and Art Studies》 2023年第2期104-109,共6页
Over recent years,our society has plunged into the phenomenon of“neijuan”(in English“involution”,a kind of meaningless competition).And it even becomes a social dilemma that many people are forced to make more eff... Over recent years,our society has plunged into the phenomenon of“neijuan”(in English“involution”,a kind of meaningless competition).And it even becomes a social dilemma that many people are forced to make more efforts to compete for limited social resources.This phenomenon has,of course,attracted the attention of many researchers.There are many researches about“neijuan”varying from its popularity reasons and its trend to its application,but there is very little research about the cultural differences between China and the West behind this phenomenon.Therefore,based on Hofstede’s cultural dimensions theory,this paper analyses the different manifestations of“neijuan”in China and the West and explores the cultural differences between the two. 展开更多
关键词 neijuan Hofstede’s cultural dimensions theory cultural differences
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离散型Leslie’s捕食与被捕食系统具有n周期向量函数的周期解的条件 被引量:1
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作者 王东达 孙纪方 蔡素云 《北华大学学报(自然科学版)》 CAS 2002年第3期185-191,共7页
给出了离散型Leslie's捕食与被捕食系统其中R,r,a均为正参数,具有n周期向量函数的周期解的条件.
关键词 离散型leslie's捕食与被捕食系统 n周期向量函数 生物数学模型 周期解 n周期复值向量函数 平衡点
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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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Leslie’s捕食与被捕食离散型系统具有n周期向量函数的周期解的条件
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作者 蔡淑云 戚大伟 《东北林业大学学报》 CAS CSCD 北大核心 2004年第3期100-102,共3页
给出了Leslie’s捕食与被捕食离散型系统 xt+ 1-xt=xt(R -xt-αyt) ,yt+ 1- yt=yt(r - yt/xt) ,具有n周期向量函数的周期解的条件 (其中R ,r ,α均为正参数 )。
关键词 leslie’s离散型系统 n周期向量函数 周期解
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基于多目标遗传算法的8×8 S盒的优化设计方法
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作者 王永 王明月 龚建 《西南交通大学学报》 EI CSCD 北大核心 2024年第3期519-527,538,共10页
混沌系统具有非线性、伪随机性、初始值敏感等特性,为基于动力系统构造性能良好的S盒提供了基础,进一步保证了分组加密算法安全性.目前,基于混沌构造S盒的方法大多数针对单个性能指标进行优化,难以获得全面的性能提升.针对此问题,结合... 混沌系统具有非线性、伪随机性、初始值敏感等特性,为基于动力系统构造性能良好的S盒提供了基础,进一步保证了分组加密算法安全性.目前,基于混沌构造S盒的方法大多数针对单个性能指标进行优化,难以获得全面的性能提升.针对此问题,结合混沌映射与多目标遗传算法,提出了一种新的S盒设计方法.首先,利用混沌映射的特性产生初始S盒种群;然后,以S盒的非线性度和差分均匀性为优化目标,基于遗传算法框架对上述两指标进行优化.针对S盒的特点,在优化算法中引入了交换操作,设计了新的变异操作以及非支配序集计算,有效提升了S盒的非线性度和差分均匀性.实验结果表明该算法产生的S盒其差分均匀度为6,非线性度值至少为110,有效提升了S盒的综合性能. 展开更多
关键词 s 非线性度 差分均匀度 多目标遗传算法 混沌映射
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基于程函面波成像的华北克拉通岩石圈三维高分辨率S波速度结构研究
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作者 钟世军 吴建平 +2 位作者 司政亚 朱红彬 王薇 《地震学报》 CSCD 北大核心 2024年第4期578-599,共22页
利用“中国地震科学台阵探测”项目Ⅱ期和Ⅲ期的流动地震台站以及中国区域地震台网中的部分固定台站的观测资料,采用程函面波成像方法获得了华北克拉通及周边区域10—120 s周期的瑞雷面波相速度分布和高分辨率的三维S波速度结构,并基于... 利用“中国地震科学台阵探测”项目Ⅱ期和Ⅲ期的流动地震台站以及中国区域地震台网中的部分固定台站的观测资料,采用程函面波成像方法获得了华北克拉通及周边区域10—120 s周期的瑞雷面波相速度分布和高分辨率的三维S波速度结构,并基于该速度模型估算了岩石圈厚度分布。结果显示,华北克拉通内部岩石圈厚度除了存在“西厚东薄”的一级分布特征外,还存在一些更小尺度的差异,包括鄂尔多斯地块内部岩石圈“南厚北薄”、鄂尔多斯地块周缘断陷带岩石圈显著的不均匀减薄以及燕山构造带与其南侧华北平原之间的显著差异等。山西断陷带北部与南部地区上地幔浅部(<100 km)存在不同程度的低速异常,它们被中部的高速异常区所分隔。在150 km以下深度从太行山南缘向北至山西断陷北缘存在一条NNE向展布的显著低速异常带,表明上地幔浅部南北部的低速异常在深部相连。结合已有的其它成像结果,我们推测这些低速异常起源于更深处(>200 km),并与由太平洋俯冲板块的滞留脱水导致的上地幔热物质上涌和小尺度地幔对流等密切相关。燕山构造带与华北平原的岩石圈结构存在明显差异,前者遭受的岩石圈破坏改造程度明显弱于后者,张家口—渤海地震带位于这两种不同壳幔结构的过渡带,地震活动较强,我们认为深部结构和热作用的显著差异,以及青藏高原远场挤压效应的共同作用是导致该区地震活动较强的主要原因。 展开更多
关键词 华北克拉通 程函面波成像 s 波速度 低速异常 岩石圈厚度 显著差异
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On the Gender Difference of Translator's Subjectivity in Literary Translation
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作者 陈志海 董淑新 王齐 《海外英语》 2014年第22期120-122,125,共4页
Translation is an activity aimed at transferring the source language to the target language,related to many aspects involving culture,society,history and so on.The translator plays a critical role in translation pract... Translation is an activity aimed at transferring the source language to the target language,related to many aspects involving culture,society,history and so on.The translator plays a critical role in translation practice.Xu Jun considers"translator’s subjectivity should be reflected to be artistic personal consciousness in translated works."Translator’s differences in age,gender,personal traits,educational level and other aspects make translation artistry completely divergent.Therefore,translator’s subjectivity shoulders great significances on the success of literary translation,which isn’t arbitrary,out of control,must be conducted in line with essence of the original work.This paper focuses on the gender difference of translator’s subjectivity in literary translation,hoping to find a way of eliminating the influence of it in the translation work. 展开更多
关键词 translator’s sUBJECTIVITY GENDER difference androg
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RITT-WU'S CHARACTERISTIC SET METHOD FOR ORDINARY DIFFERENCE POLYNOMIAL SYSTEMS WITH ARBITRARY ORDERING 被引量:6
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作者 高小山 袁春明 张桂林 《Acta Mathematica Scientia》 SCIE CSCD 2009年第4期1063-1080,共18页
In this paper, a Ritt-Wu's characteristic set method for ordinary difference systems is proposed, which is valid for any admissible ordering. New definition for irreducible chains and new zero decomposition algorithm... In this paper, a Ritt-Wu's characteristic set method for ordinary difference systems is proposed, which is valid for any admissible ordering. New definition for irreducible chains and new zero decomposition algorithms are also proposed. 展开更多
关键词 difference polynomial ascending chain characteristic set Ritt-Wu's zero decomposition theorem
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Computing Bifurcation Diagrams of Steady State Kuramoto Sivashinsky Equation by Difference Method 被引量:1
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作者 LI Chang pin (College of Sciences, Shanghai University) 《Advances in Manufacturing》 SCIE CAS 1999年第3期248-250,共3页
Utilizing difference formulae, we obtained the discrete systems of steady state Kuramoto Sivashinsky (K S) equation. Applied Newton's method and continuation technology to the systems, the bifurcated solutio... Utilizing difference formulae, we obtained the discrete systems of steady state Kuramoto Sivashinsky (K S) equation. Applied Newton's method and continuation technology to the systems, the bifurcated solutions are derived, and the bifurcation diagrams are constructed. All the results are successful and satisfactory. 展开更多
关键词 BIFURCATION K s equation difference method
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Associations of gut microbiota with dyslipidemia based on sex differences in subjects from Northwestern China 被引量:1
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作者 Lei Guo Yang-Yang Wang +7 位作者 Ji-Han Wang He-Ping Zhao Yan Yu Guo-Dong Wang Kun Dai Yu-Zhu Yan Yan-Jie Yang Jing Lv 《World Journal of Gastroenterology》 SCIE CAS 2022年第27期3455-3475,共21页
BACKGROUND The gut microbiota(GM)has been proven to play a role in the regulation of host lipid metabolism,which provides a new theory about the pathogenesis of dyslipidemia.However,the associations of GM with dyslipi... BACKGROUND The gut microbiota(GM)has been proven to play a role in the regulation of host lipid metabolism,which provides a new theory about the pathogenesis of dyslipidemia.However,the associations of GM with dyslipidemia based on sex differences remain unclear and warrant elucidation.AIM To investigate the associations of GM features with serum lipid profiles based on sex differences in a Chinese population.METHODS This study ultimately recruited 142 participants(73 females and 69 males)at Honghui Hospital,Xi’an Jiaotong University.The anthropometric and blood metabolic parameters of all participants were measured.According to their serum lipid levels,female and male participants were classified into a high triglyceride(H_TG)group,a high total cholesterol(H_CHO)group,a low high-density lipoprotein cholesterol(L_HDL-C)group,and a control(CON)group with normal serum lipid levels.Fresh fecal samples were collected for 16S rRNA gene sequencing.UPARSE software,QIIME software,the RDP classifier and the FAPROTAX database were used for sequencing analyses.RESULTS The GM composition at the phylum level included Firmicutes and Bacteroidetes as the core GM.Different GM features were identified between females and males,and the associations between GM and serum lipid profiles were different in females and males.The GM features in different dyslipidemia subgroups changed in both female patients and male patients.Proteobacteria,Lactobacillaceae,Lactobacillus and Lactobacillus_salivarius were enriched in H_CHO females compared with CON females,while Coriobacteriia were enriched in L_HDL-C females.In the comparison among the three dyslipidemia subgroups in females,Lactobacillus_salivarius were enriched in H_CHO females,and Prevotellaceae were enriched in L_HDL-C females.Compared with CON or H_TG males,Prevotellaceae,unidentified_Ruminococcaceae,Roseburia and Roseburia_inulinivorans were decreased in L_HDL-C males(P value<0.05),and linear discriminant analysis effect size analysis indicated an enrichment of the above GM taxa in H_TG males compared with other male subgroups.Additionally,Roseburia_inulinivorans abundance was positively correlated with serum TG and total cholesterol levels,and Roseburia were positively correlated with serum TG level.Furthermore,Proteobacteria(0.724,95%CI:0.567-0.849),Lactobacillaceae(0.703,95%CI:0.544-0.832),Lactobacillus(0.705,95%CI:0.547-0.834)and Lactobacillus_salivarius(0.706,95%CI:0.548-0.835)could distinguish H_CHO females from CON females,while Coriobacteriia(0.710,95%CI:0.547-0.841),Coriobacteriales(0.710,95%CI:0.547-0.841),Prevotellaceae(0.697,95%CI:0.534-0.830),Roseburia(0.697,95%CI:0.534-0.830)and Roseburia_inulinivorans(0.684,95%CI:0.520-0.820)could discriminate H_TG males from CON males.Based on the predictions of GM metabolic capabilities with the FAPROTAX database,a total of 51 functional assignments were obtained in females,while 38 were obtained in males.This functional prediction suggested that cellulolysis increased in L_HDL-C females compared with CON females,but decreased in L_HDL-C males compared with CON males.CONCLUSION This study indicates associations of GM with serum lipid profiles,supporting the notion that GM dysbiosis may participate in the pathogenesis of dyslipidemia,and sex differences should be considered. 展开更多
关键词 DYsLIPIDEMIA Gut microbiota 16s rRNA sEQUENCING sex differences Northwestern China
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2023年甘肃积石山M_(S)6.2地震精定位及发震构造研究
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作者 陈科睿 陈继锋 尹欣欣 《地震工程学报》 CSCD 北大核心 2024年第4期932-941,共10页
采用双差定位的方法,对2023年12月18日甘肃省积石山县M_(S)6.2地震的余震(震后一周)进行重定位,最后获得438个地震事件(包含主震)的位置。定位结果显示余震主要呈NNW向分布,长度约为16 km;主震位于余震带的中央偏东北处,余震分布与拉脊... 采用双差定位的方法,对2023年12月18日甘肃省积石山县M_(S)6.2地震的余震(震后一周)进行重定位,最后获得438个地震事件(包含主震)的位置。定位结果显示余震主要呈NNW向分布,长度约为16 km;主震位于余震带的中央偏东北处,余震分布与拉脊山断裂近似平行,与主震的震源机制解吻合;余震的震源深度主要集中在6.5~12 km,主震深度为11.5 km。从沿断裂走向的剖面可以观察到,此次地震的浅地表余震事件较少,因此未造成明显的地表破裂。对发震断裂的分析表明,拉脊山断裂带的走滑速率较低,这可能代表其处于强锁定阶段。此外,地震聚类分析表明,尽管北拉脊山断裂是主要发震断裂,南拉脊山断裂与此次地震的发震构造也存在紧密联系。 展开更多
关键词 积石山M_(s)6.2地震 双差定位 震源机制 发震构造 时空演化
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Finite difference streamline diffusion method using nonconforming space for incompressible time-dependent Navier-Stokes equations 被引量:1
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作者 陈刚 冯民富 何银年 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2013年第9期1083-1096,共14页
This paper proposes a new nonconforming finite difference streamline diffusion method to solve incompressible time-dependent Navier-Stokes equations with a high Reynolds number. The backwards difference in time and th... This paper proposes a new nonconforming finite difference streamline diffusion method to solve incompressible time-dependent Navier-Stokes equations with a high Reynolds number. The backwards difference in time and the Crouzeix-Raviart (CR) element combined with the P0 element in space are used. The result shows that this scheme has good stabilities and error estimates independent of the viscosity coefficient. 展开更多
关键词 Navier-stokes equation high Reynolds number Ladyzhenskaya-Babugka- Brezzi (LBB) condition finite difference streamline diffusion method discrete Gronwall's inequality
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LEIBNIZ′FORMULA OF GENERALIZED DIFFERENCE WITH RESPECT TO A CLASS OF DIFFERENTIAL OPERATORS AND RECURRENCE FORMULA OF THEIR GREEN′S FUNCTION 被引量:1
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作者 许跃生 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1984年第3期1359-1364,共6页
In this paper, Leibniz' formula of generalized divided difference with respect to a class of differential operators whose basic sets of solutions have power form, is considered. The recurrence formula of Green fun... In this paper, Leibniz' formula of generalized divided difference with respect to a class of differential operators whose basic sets of solutions have power form, is considered. The recurrence formula of Green function about the operators is also given. 展开更多
关键词 LEIBNIZ s FUNCTION FORMULA OF GENERALIZED difference WITH REsPECT TO A CLAss OF differENTIAL OPERATORs AND RECURRENCE FORMULA OF THEIR GREEN
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High Accurate Fourth-Order Finite Difference Solutions of the Three Dimensional Poisson’s Equation in Cylindrical Coordinate 被引量:1
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作者 Alemayehu Shiferaw Ramesh Chand Mittal 《American Journal of Computational Mathematics》 2014年第2期73-86,共14页
In this work, by extending the method of Hockney into three dimensions, the Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved dire... In this work, by extending the method of Hockney into three dimensions, the Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved directly. The Poisson equation is approximated by fourth-order finite differences and the resulting large algebraic system of linear equations is treated systematically in order to get a block tri-diagonal system. The accuracy of this method is tested for some Poisson’s equations with known analytical solutions and the numerical results obtained show that the method produces accurate results. 展开更多
关键词 Poisson’s EQUATION Tri-Diagonal Matrix FOURTH-ORDER FINITE difference APPROXIMATION Hockney’s Method Thomas Algorithm
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2024年1月23日乌什M_(S)7.1地震序列重定位研究
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作者 祖力卡尔·艾则孜 南芳芳 徐衍刚 《内陆地震》 2024年第2期194-200,共7页
为深入研究乌什M_(S)7.1地震,采用双差地震定位法对地震序列进行重定位,定位结果显示:①重定位后主震空间位置变化不大,和重定位前的位置相距2 km,深度为25.6 km,比重定位前深度更深。②重定位后,地震序列沿迈丹断裂分布的收敛特征更加... 为深入研究乌什M_(S)7.1地震,采用双差地震定位法对地震序列进行重定位,定位结果显示:①重定位后主震空间位置变化不大,和重定位前的位置相距2 km,深度为25.6 km,比重定位前深度更深。②重定位后,地震序列沿迈丹断裂分布的收敛特征更加明显,同时存在余震向南移动的趋势,与地震烈度图和灾情分布特征一致。③迈丹断裂在受到山前挤压作用时,在主震震中附近受阻,形成明显的地震稀疏带。迈丹断裂乌什段发震构造比阿合奇段发震构造深,活动性比较弱,因此在主震震中SW向余震多而浅,NE向余震少而深。 展开更多
关键词 乌什M_(s)7.1地震 双差地震定位法 地震序列
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Efficient BTCS + CTCS Finite Difference Scheme for General Linear Second Order PDE 被引量:1
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作者 Gueye Serigne Bira Mbow Cheikh Diagana Mouhamed Fadel 《Journal of Electromagnetic Analysis and Applications》 2021年第10期135-143,共9页
This work deals with a second order linear general equation with partial derivatives for a two-variable function. It covers a wide range of applications. This equation is solved with a finite difference hybrid method:... This work deals with a second order linear general equation with partial derivatives for a two-variable function. It covers a wide range of applications. This equation is solved with a finite difference hybrid method: BTCS + CTCS. This scheme is simple, precise, and economical in terms of time and space occupancy in memory. 展开更多
关键词 Finite difference BCTs %PLUs% CTCs Usmani’s Algorithm Tridiagonal Matrix Telegraph Equation
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On a Difference Matrix and Its Properties
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作者 P.Baliarsingh L.Nayak 《Analysis in Theory and Applications》 CSCD 2017年第4期375-383,共9页
In the present paper, a new difference matrix via difference operator D is introduced. Let x = (xk) be a sequence of real numbers, then the difference operatorD is defined by D(x)n =∑kn=0(-1)k(n-kn)xk,where ... In the present paper, a new difference matrix via difference operator D is introduced. Let x = (xk) be a sequence of real numbers, then the difference operatorD is defined by D(x)n =∑kn=0(-1)k(n-kn)xk,where n = 0,1,2,3,.... Several interestingproperties of the new operator D are discussed. 展开更多
关键词 difference operators △α B(r s B(r s t u) D Cesaro operator C(1 1).
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Fractional sum and fractional difference on non-uniform lattices and analogue of Euler and Cauchy Beta formulas
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作者 CHENG Jin-fa 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2021年第3期420-442,共23页
As is well known,the definitions of fractional sum and fractional difference of f(z)on non-uniform lattices x(z)=c1z^(2)+c2z+c3 or x(z)=c1q^(z)+c2q^(-z)+c3 are more difficult and complicated.In this article,for the fi... As is well known,the definitions of fractional sum and fractional difference of f(z)on non-uniform lattices x(z)=c1z^(2)+c2z+c3 or x(z)=c1q^(z)+c2q^(-z)+c3 are more difficult and complicated.In this article,for the first time we propose the definitions of the fractional sum and fractional difference on non-uniform lattices by two different ways.The analogue of Euler’s Beta formula,Cauchy’Beta formula on non-uniform lattices are established,and some fundamental theorems of fractional calculas,the solution of the generalized Abel equation on non-uniform lattices are obtained etc. 展开更多
关键词 difference equation of hypergeometric type non-uniform lattice fractional sum fractional difference special functions Euler’s Beta formula Cauchy’Beta formula
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A Nonstationary Halley’s Iteration Method by Using Divided Differences Formula
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作者 Nasr Al Din Ide 《Applied Mathematics》 2012年第2期169-171,共3页
This paper presents a new nonstationary iterative method for solving non linear algebraic equations that does not require the use of any derivative. The study uses only the Newton’s divided differences of first and s... This paper presents a new nonstationary iterative method for solving non linear algebraic equations that does not require the use of any derivative. The study uses only the Newton’s divided differences of first and second orders instead of the derivatives of (1). 展开更多
关键词 NONsTATIONARY ITERATIVE METHOD Hally’s FORMULA Divided differences
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Hierarchical robot control structure and Newton's divided difference approach to robot path planning
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作者 Chan Kit Wai, Prahlad Vadakkepat, Xiao Peng (Dept. of Electrical and Computer Engineering, National University of Singapore, Singapore 119260) 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2001年第3期303-308,共6页
A hierarchical robot control is proposed for robot soccer system. The Newton’s divided difference is utilized in robot path planning. This paper describes the problems encoutered, software design considerations, visi... A hierarchical robot control is proposed for robot soccer system. The Newton’s divided difference is utilized in robot path planning. This paper describes the problems encoutered, software design considerations, vision algorithm and controls of individual robots. The solutions to the problems implemented are simple and direct. It is observed that many of the ideas and solutions can be evolved based on simple theories and concepts. This paper focuses on software structure of multi agent controls, vision algorithm and simple path planning method. 展开更多
关键词 path plannin Newton’s divided difference multi agent controls
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