期刊文献+
共找到2,878篇文章
< 1 2 144 >
每页显示 20 50 100
The Deformation Analysis of the 3D Alignment Control Network Based on the Multiple Congruence Models
1
作者 Xudong ZHANG Wenjun CHEN +5 位作者 Xiaodong ZHANG Yajun ZHENG Bin ZHANG Shaoming WANG Jiandong YUAN Guozhen SUN 《Journal of Geodesy and Geoinformation Science》 CSCD 2023年第2期21-31,共11页
In the construction and maintenance of particle accelerators,all the accelerator elements should be installed in the same coordinate system,only in this way could the devices in the actual world be consistent with the... In the construction and maintenance of particle accelerators,all the accelerator elements should be installed in the same coordinate system,only in this way could the devices in the actual world be consistent with the design drawings.However,with the occurrence of the movements of the reinforced concrete cover plates at short notice or building deformations in the long term,the control points upon the engineering structure will be displaced,and the fitness between the subnetwork and the global control network may be irresponsible.Therefore,it is necessary to evaluate the deformations of the 3D alignment control network.Different from the extant investigations,in this paper,to characterize the deformations of the control network,all of the congruent models between the points measured in different epochs have been identified,and the congruence model with the most control points is considered as the primary or fundamental model,the remaining models are recognized as the additional ones.Furthermore,the discrepancies between the primary S-transformation parameters and the additional S-transformation parameters can reflect the relative movements of the additional congruence models.Both the iterative GCT method and the iterative combinatorial theory are proposed to detect multiple congruence models in the control network.Considering the actual work of the alignment,it is essential to identify the competitive models in the monitoring network,which can provide us a hint that,even the fitness between the subnetwork and the global control network is good,there are still deformations which may be ignored.The numerical experiments show that the suggested approaches can describe the deformation of the 3D alignment control network roundly. 展开更多
关键词 similarity transformation 3D alignment control network deformation analysis hypothesis testing iterative global congruence test iterative combinatorial theory
下载PDF
Effects of Collocational Congruency,Frequency and L2 Proficiency on the Processing of English Adjective-Noun Collocations
2
作者 Lianrui YANG Qun ZHANG +1 位作者 Ni LI Ying CHEN 《Chinese Journal of Applied Linguistics》 2024年第3期393-413,524,共22页
The present study investigates the effects of congruency and frequency on adjective-noun collocational processing for Chinese learners of English at two proficiency levels based on the data obtained in an online accep... The present study investigates the effects of congruency and frequency on adjective-noun collocational processing for Chinese learners of English at two proficiency levels based on the data obtained in an online acceptability judgment task.The subject pool of this research included 60 English majors studying at a university in China;30 were selected as a higher-proficiency group and 30 as a lower-proficiency group according to their Vocabulary Levels Test(Schmitt et al.,2001)scores and their self-reported proficiency in English.The experimental materials were programmed to E-prime 2.0 and included six types of collocations:(1)15 high-frequency congruent collocations,(2)15 low-frequency congruent collocations,(3)15 high-frequency incongruent collocations,(4)15 low-frequency incongruent collocations,(5)15 Chinese-only items,and(6)75 unrelated items for baseline data.The collected response times(RTs)and accuracy rates data were statistically analyzed by the use of an ANOVA test and pairwise comparisons through SPSS 16.0 software.The results revealed that:(1)the adjective-noun collocational processing of Chinese English learners is influenced by collocational frequency,congruency and L2 proficiency;(2)the processing time is affected by the interaction of congruency and frequency;and(3)the interactive effect of L2 proficiency in conjunction with congruency and frequency also influences the processing quality. 展开更多
关键词 adjective-noun collocations congruency effects frequency effects L2 proficiency
下载PDF
Comparing Three of the Leadership Theories: Leader-Member Exchange Theory,transformational Leadership and Team Leadership
3
作者 王子涵 《中国校外教育(上旬)》 2013年第S2期122-124,共3页
Leadership is a complex process.It is one of the most researched areas around the world.It has gained importance in every walk of life from politics to business and from education to social organizations.According to ... Leadership is a complex process.It is one of the most researched areas around the world.It has gained importance in every walk of life from politics to business and from education to social organizations.According to the study of"Leadership in Adult Education Venues",here has a much more clear recognition of leadership:leadership is a process whereby an individual influences a group of individuals to achieve a common goal.There are many approaches of leadership throughout the study of this class,the three theories of leadership I choose to describe in this paper are:Leader-Member Exchange(LMX)Theory,Transformational Leadership,and Team Leadership. 展开更多
关键词 leader-member EXCHANGE THEORY Transformational LEA
下载PDF
A SPECIAL KIND OF PRINCIPAL CONGRUENCES ON MS-ALGEBRAS 被引量:2
4
作者 罗从文 《Acta Mathematica Scientia》 SCIE CSCD 2008年第2期315-320,共6页
In this article, for any a in the MS-algebra L, the author considers the con- gruence of the form defined by (x,y) ∈θa→←x∧a°° = y ∧a° and x ∨ a°° = y ∨ a°°. A characterizat... In this article, for any a in the MS-algebra L, the author considers the con- gruence of the form defined by (x,y) ∈θa→←x∧a°° = y ∧a° and x ∨ a°° = y ∨ a°°. A characterization of subdirectly irreducible MS-algebras is given and it is also proved that the union of two principal congruences having this form is a principal congruence if and only if L ∈ K2 ∨ K3. 展开更多
关键词 MS-ALGEBRA principal congruence MS-space
下载PDF
Architectures and Algorithms of Generalized Congruence Neural Networks 被引量:2
5
作者 靳蕃 《Journal of Modern Transportation》 1998年第2期2-8,共7页
In this paper a novel class of neural networks called generalized congruence neural networks (GCNN) is proposed. All neurons in the neural networks are activated in the form of congruence. The architectures, learnin... In this paper a novel class of neural networks called generalized congruence neural networks (GCNN) is proposed. All neurons in the neural networks are activated in the form of congruence. The architectures, learning rules and two algorithms are presented. Simulation results indicate that such network has satisfactory generalization properties near the sample points. Since this kind of neural nets can be easily operated and implemented, it is appropriate to make further research concerning the theory and applications of GCNN. 展开更多
关键词 generalized congruence congruence neuron artificial neural networks recurrence algorithms
下载PDF
The Least Distributive Lattice Congruence on Commutative Distributive Semiring 被引量:7
6
作者 LI Shi-zheng,LI Shan-hai,YU Xiao-ming (Department of Mathematics, Shandong Normal University, Shandong 250014,China) 《Chinese Quarterly Journal of Mathematics》 CSCD 2003年第1期35-43,共9页
In this paper, we describe the least distributive lattice congruence on a commutative distributive semiring.
关键词 SEMIRING commutative distributive semiring distributive lattice congruence
下载PDF
Divisible Semiring Congruences on Distributive Semiring 被引量:2
7
作者 李善海 李师正 《Chinese Quarterly Journal of Mathematics》 CSCD 2003年第4期406-409,共4页
In this paper, we describe all the divisible semiring congruences on a distributive semiring S and also establish a one_to_one, inclusion_preserving mapping from the set of full, closed, self_conjagate, ideal subsemir... In this paper, we describe all the divisible semiring congruences on a distributive semiring S and also establish a one_to_one, inclusion_preserving mapping from the set of full, closed, self_conjagate, ideal subsemirings of S to the set of all divisible semiring congruences on S. 展开更多
关键词 SEMIRING divisible semiring distributive semiring semiring congruence divisible semiring congruence
下载PDF
ON SYMMETRIC EXTENDED MS-ALGEBRAS WHOSE CONGRUENCES ARE PERMUTABLE 被引量:1
8
作者 罗从文 《Acta Mathematica Scientia》 SCIE CSCD 2011年第3期1113-1122,共10页
Algebras whose congruences are permutable were investigated by a number of authors in the literature. In this paper, we study the symmetric extended MS-algebras whose congruences are permutable. Some results obtained ... Algebras whose congruences are permutable were investigated by a number of authors in the literature. In this paper, we study the symmetric extended MS-algebras whose congruences are permutable. Some results obtained by Jie Fang on symmetric extended De Morgan algebras are generalized. 展开更多
关键词 extended Ockham algebra symmetric extended MS-algebra congruence permutable
下载PDF
On Infinite Disjoint Congruence Covering Systems 被引量:1
9
作者 陈永高 《Chinese Quarterly Journal of Mathematics》 CSCD 1996年第3期36-39,共4页
In this paper we show that for any α∈(0,l] there exists an infinite disjoint covering system {a1(modni)}i=1∞ such that
关键词 congruence class covering system
下载PDF
COBORDISM AND ROKHLIN CONGRUENCES
10
作者 张伟平 《Acta Mathematica Scientia》 SCIE CSCD 2009年第3期609-612,共4页
In this paper, we give a cobordism proof of the higher dimensional Rokhlin congruences established in [8].
关键词 COBORDISM Rokhlin congruence
下载PDF
P-congruence-free Epigroups
11
作者 Liu Jing-guo Zhang Jin-ling 《Communications in Mathematical Research》 CSCD 2017年第2期97-109,共13页
Let P denote the equivalence relation on an epigroup in which any of its classes consists precisely of those elements owning the same pseudo-inverse. The purpose of the paper is to characterize epigroups on which any ... Let P denote the equivalence relation on an epigroup in which any of its classes consists precisely of those elements owning the same pseudo-inverse. The purpose of the paper is to characterize epigroups on which any congruence either contains P or its join with P is the identity relation on epigroups. As a special subclass of epigroups, completely 0-simple semigroups having the same property are also described. 展开更多
关键词 congruence epigroup completely 0-simple semigroup
下载PDF
Rectangular Ring Congruences on an E-inversive Semiring
12
作者 CHENG Zi-qiang ZHOU Yuan-lan PAN Shi-ju 《Chinese Quarterly Journal of Mathematics》 CSCD 2014年第4期529-538,共10页
In this paper, we discussed the property of rectangular band semiring congruence and ring congruence on a semiring and gave some characterizations and structure of rectangular ring congruence on an E-inversive semiring.
关键词 congruence band semiring E-inversive semiring
下载PDF
On the Error Term for the Number of Solutions of Certain Congruences
13
作者 ZHANG Yi-feng SHI San-ying 《Chinese Quarterly Journal of Mathematics》 2017年第3期271-276,共6页
Let f(x) be an irreducible polynomial of degree m ≥ 2 with integer coefficients,and let r(n) denote the number of solutions x of the congruence f(x) ≡ 0(mod n) satisfying0 ≤ x < n. Define ?(x) =Σ 1≤n≤x r(n)-... Let f(x) be an irreducible polynomial of degree m ≥ 2 with integer coefficients,and let r(n) denote the number of solutions x of the congruence f(x) ≡ 0(mod n) satisfying0 ≤ x < n. Define ?(x) =Σ 1≤n≤x r(n)-αx, where α is the residue of the Dedekind zeta function ζ(s, K) at its simple pole s = 1. In this paper it is shown that ∫_1~X?~2(x)dx? ε{X^(3-6/m+3+ε)if m ≥ 3,X^(2+ε) if m = 2,for any non-Abelian polynomial f(x) and any ε > 0. This result constitutes an improvement upon that of Lü for the error terms on average. 展开更多
关键词 Dedekind zeta function polynomial congruence mean square
下载PDF
Fibonacci Congruences and Applications
14
作者 René Blacher 《Open Journal of Statistics》 2011年第2期128-138,共11页
When we study a congruence T(x) ≡ ax modulo m as pseudo random number generator, there are several means of ensuring the independence of two successive numbers. In this report, we show that the dependence depends on ... When we study a congruence T(x) ≡ ax modulo m as pseudo random number generator, there are several means of ensuring the independence of two successive numbers. In this report, we show that the dependence depends on the continued fraction expansion of m/a. We deduce that the congruences such that m and a are two successive elements of Fibonacci sequences are those having the weakest dependence. We will use this result to obtain truly random number sequences xn. For that purpose, we will use non-deterministic sequences yn. They are transformed using Fibonacci congruences and we will get by this way sequences xn. These sequences xn admit the IID model for correct model. 展开更多
关键词 FIBONACCI Sequence Linear congruence Random NUMBERS DEPENDENCE CORRECT Models
下载PDF
Congruences on an Orthodox Semigroup
15
作者 李勇华 《Northeastern Mathematical Journal》 CSCD 2004年第3期291-302,共12页
Let 5 be an orthodox semigroup and γ the least inverse congruence on 5. C(S) denotes the set of all congruences on S. In this paper we introduce the concept of admissible triples for S, where admissible triples are c... Let 5 be an orthodox semigroup and γ the least inverse congruence on 5. C(S) denotes the set of all congruences on S. In this paper we introduce the concept of admissible triples for S, where admissible triples are constructed by the congruences on S/γ , the equivalences on E(S)/L and E(S)/R. The notation Ca(S) denotes the set of all admissible triple for S. We prove that every congruence ρ on S can be uniquely determined by the admissible triple induced by ρ, and there exists a lattice isomomorphism between C(S) and Ca(S). 展开更多
关键词 Orthodox semigroup congruence admissible triple normal equivalence
下载PDF
Super Congruences Involving Alternating Harmonic Sums
16
作者 Zhongyan Shen Tianxin Cai 《Advances in Pure Mathematics》 2020年第10期611-622,共12页
Let <em>p</em> be an odd prime, the harmonic congruence such as <img alt="" src="Edit_843b278d-d88a-45d3-a136-c30e6becf142.bmp" />, and many different variations and generalizatio... Let <em>p</em> be an odd prime, the harmonic congruence such as <img alt="" src="Edit_843b278d-d88a-45d3-a136-c30e6becf142.bmp" />, and many different variations and generalizations have been studied intensively. In this note, we consider the congruences involving the combination of alternating harmonic sums, <img alt="" src="Edit_e97d0c64-3683-4a75-9d26-4b371c2be41e.bmp" /> where P<em><sub>P </sub></em>denotes the set of positive integers which are prime to <em>p</em>. And we establish the combinational congruences involving alternating harmonic sums for positive integer <em>n</em>=3,4,5. 展开更多
关键词 Bernoulli Numbers Alternating Harmonic Sums congruenceS Modulo Prime Powers
下载PDF
Congruences and Ideals of Ockham Algebras with de Morgan Skeleton
17
作者 FANG Jie WANG Lei-bo 《Chinese Quarterly Journal of Mathematics》 CSCD 2013年第3期338-344,共7页
In this note, we study of those congruences on an Ockham algebra with de Morgan skeleton that the quotient algebras belong to the class of de Morgan algebras. We particularly give a description of those kernel ideals ... In this note, we study of those congruences on an Ockham algebra with de Morgan skeleton that the quotient algebras belong to the class of de Morgan algebras. We particularly give a description of those kernel ideals that generate these congruences. 展开更多
关键词 Ockham algebra de Morgan algebra congruence kernel ideal
下载PDF
One Class of the Least Congruences on Completely Regular Semigroups
18
作者 ZHANG Jiangang SHEN Ran 《Journal of Donghua University(English Edition)》 CAS 2021年第3期278-282,共5页
Congruence is a very important aspect in the study of the semigroup theory.In general,the Kernel-trace characterizations,Green's relations and subvarieties are main tools in the consideration of congruences on com... Congruence is a very important aspect in the study of the semigroup theory.In general,the Kernel-trace characterizations,Green's relations and subvarieties are main tools in the consideration of congruences on completely regular semigroups.In this paper,we give one class of congruences on completely regular semigroups with the representation of wreath product of translational hulls on completely simple semigroups.By this new way,the least Clifford semigroup congruences on completely regular semigroups are generalized. 展开更多
关键词 completely regular semigroup Clifford congruence translational hull wreath product ORTHOGROUP
下载PDF
P-kernel Normal System of Strong P-congruences on P-inversive Semigroups 被引量:1
19
作者 范兴奎 陈倩华 《Northeastern Mathematical Journal》 CSCD 2005年第4期397-403,共7页
Let S(P) be a P-inversive semigroup. In this paper we describe the strong P-congruences on S(P) in terms of their P-kernel normal systems. We prove that any strong P-congruence on S(P) can present a P-kernel nor... Let S(P) be a P-inversive semigroup. In this paper we describe the strong P-congruences on S(P) in terms of their P-kernel normal systems. We prove that any strong P-congruence on S(P) can present a P-kernel normal system; conversely any P-kernel normal system of S(P) can determine a strong P-congruence. 展开更多
关键词 P-inversive semigroup strong P-congruence P-kernel normal system
下载PDF
Analogous Systems Principles and Concepts of Traditional Chinese Medicine and Congruence Couple Therapy
20
作者 Bonnie K.Lee 《Chinese Medicine and Culture》 2020年第1期22-28,共7页
This article explicates the analogous principles and concepts between traditional Chinese medicine(TCM)and congruence couple therapy(CCT).Although originating out of vastly different times and places,TCM and CCT share... This article explicates the analogous principles and concepts between traditional Chinese medicine(TCM)and congruence couple therapy(CCT).Although originating out of vastly different times and places,TCM and CCT share a view of health based on systems understanding to facilitate the interconnections of the parts of an organism rather than focusing on eliminating symptoms.Both approaches aim to release Qi(气)and vitality by removing blockages through adjusting the interactions,adaptation,and balance of multiple elements and Yin‑Yang energies.The goal is to liberate the Qi or life force through improved holistic balance and cooperation.While TCM focuses on interventions at the level of the body,CCT focuses on the attention,awareness,acknowledgement,and alignment of the four human dimensions consisting of the intrapsychic,interpersonal,intergenerational,and universal‑spiritual.In light of the current trend toward increasing mental,substance use,and neurological disorders,in particular among countries of middle and low income,dialogue to explore these compatibilities between TCM and CCT is conducive to the continuous evolution of TCM and Western therapies to address not only physical health but also the exigencies of contemporary addiction and mental health care within a mind–body relationship matrix. 展开更多
关键词 Addictive disorder congruence couple therapy family therapy mental disorder substance use systemic therapy traditional Chinese medicine Yin‑Yang(阴阳)
下载PDF
上一页 1 2 144 下一页 到第
使用帮助 返回顶部