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1.
IntheprecedingPaper,itwasdemonstratedthattheadvanceofMercury'sperihelinnrelativetotheSuncanbeunderstoodasaconsequenceofthevelocitydependenceoftheplanet'sinertialandgravitationalmasses(inaccordwithspecialrelativity).Itwasnecessaryonlytotakeinaccountthiseffectinatwofoldmanner:TheincreaseofthemasswithhighervelocityintheexpressionforthekineticenergyandfurtheronalsointhetermfortheattraCtiveforcebetweenSunandMercury.AhighprecisionsolutionofNewton'sequationofmotionfortheplanetgivesamotionofitsPeri…  相似文献   

2.
l'INTRo~TloNThepurposeofthisworkistoexplainhowrelativisticeffectsareaccountedforintheGlobalPositioningSystem(GPS).AlthoughclockvelocitiesaresmallandgravitationalfieldsareweakneartheEarth,theygiverisetosignificantrelativisticeffects.Theseeffectsincludesecond--orderDopplerfrequencyshiftsofclocksduetotheirrelativevelocities,gravitationalfrequencyshifts,andtheSagnaceffectduetotheEarth'srotation.Ifsucheffectsarenotaccountedforproperly,theGPSsimplywouldnotworkatallwell.Thesuccessandself--con…  相似文献   

3.
1.IntroductionWeareconcernedwithalgebraicdifferentialpolynomials(abbreviatedas'd-pcis)inafinitenumberofdifferentialindeterminatesoveradifferentialfieldofcharacteristic0.Givenafinitesetofsuchd-pcis,wewouldliketostudyd-Zero(),thedifferentialalgebraicsetdefinedbyPoverauniversaldifferentialfield.Wemayaskwhetherd-Zero()isempty,whetherad-pcivanishesond-Zero()(differentialradicalidealmembershipproblem),whatthedimensionofd-Zero()is,howtodecomposed-Zero()intoirreduciblealgebraicdifferentialsets,andso…  相似文献   

4.
ThefascinationexertedonmanybrilliantphysicistsofourtimebyEinstein,stheoryofgeneralrelativityiscausedmainlybytworeasons:l)ThetheoryisabletoexplainthesecularmotionofMercury,sperihelionandgivesforitavalueof43.2"perhundredyears,whichisinsplendidaccordancewiththecorrespondingvalueascertainedbytheastronomers.2)ThetheoryPredictsadeflectionofstarlightbytheSun,givingadeviationofaboutl.72"fromthestraightline,whichisobserved,too.Furthermore,thereexistsuntilnownoothertheory,whichcanexplainthesetwoeffect…  相似文献   

5.
1.THEAnmviTODevELOPPL^NCK'SETceRTHEORYBYlwrRODUCINGNEG^rIVEMasSESLEADSTOSELnACCELERATloNAmongthedifferentattemptstodevelopPlanck'sethertheorythemostrecentandradicalisthatofWinterberg[l].HeproPOsedthattheremightbeanunderlyingnonrelativisticsuperfluidsubstratumofdenselypackedPOsitiveandnegativePlanckmasses,permeatingallofspace,andmakingupwhatmaybecalledthePlanckether.Precisely,Winterberg,intheallegeduPlankAetherTheory",assumespositivePlanckions(withinertialandgravi…  相似文献   

6.
基于模糊逻辑系统的武器系统故障诊断研究   总被引:2,自引:1,他引:1  
复杂的大型武器系统中广泛存在着模糊问题 ,某些故障与征兆之间的关系更具有模糊性。理论和实践表明 ,用模糊数学的方法处理这类模糊问题具有明显的优势 ,而模糊逻辑则是模糊数学的重要方法。首先讨论了一般的模糊逻辑系统模型 ,研究了基于模糊逻辑系统的故障诊断方法 ,并结合故障诊断问题 ,建立了基于模糊逻辑系统的大型武器系统故障诊断模型 ,对诊断过程和结果进行了分析  相似文献   

7.
物质信息与大脑意识   总被引:4,自引:0,他引:4  
从普通物理学的领域提出了一般信息的概念 ,并对有关信息进行了分类。阐述了基层宇宙信息与基层生物信息的联系和区别。在此基础上对人体神经信息与大脑意识作出了可能的解释 :意识是引导大脑皮质特殊活动的复杂信息。最后 ,讨论了关于物质信息的认识论和辩证法意义。  相似文献   

8.
Fundamental definitions of distance and velocity in radar measurement principle are examined and revised from strict theoretical point of view. Synchronization scheme - for clocks in uniform, translatory relative motion is introduced as theoretical foundation for GPS and GLONASS type navigation and positioning technology. Traditional definitions of two-way radar measurement, based on arithmetic mean vlaue concept, turn out to be special cases of revised definitions for one-way radar measurement, based on geometric mean concept, derived from synchronization of moving clocks in accordance with the principle of relativity. The essential physical meaning of Lorentz transformation is interpreted in terms of radar measured parameters. Invariance or absoluteness of four dimensional interval turns out to be invariance or absoluteness of geometric mean time interval. The Lorentz factor turns out to be ratio of geometric mean and arithmetic mean time intervals in terms of radar measured parameters. Theoretical re  相似文献   

9.
1. Introduction This is the fourth exposition on theAnalytic Hierarchy Process. It is true thatmany decisions we make subconsciously ariseout of our physical and biological needs andderive from the pressure to survive physically.We also make subconsciou…  相似文献   

10.
基于矢量空间的群体聚类方法研究   总被引:12,自引:7,他引:12  
通过对群体成员的思维模式进行分析,基于矢量空间提出了群体中任意两个成员偏好矢量相关性度量的一般范数以及基于该矢量相关度的启发式算法,通过执行该使算法使群体中的成员形成若干个不同的聚集。在此基础上,定义并计算群体中各个聚集的偏好和整个群体的偏好,定义并计算群体中各个聚集的一致性指标和整个群体的一致性指标,为群体决策提供依据。最后通过一个实例对算法和一致性指标等进行验证。  相似文献   

11.
1.IntroductionInthepastteny6arstheinvestigationontheregularityofsolutionsofellipticvariationalinequalitieswithdegenerateellipticitydevelopedrapidly.Theresultsareassatisfactoryasthoseofellipticequations(see[1--101).Buttherelatedinvestigationforellipticvari…  相似文献   

12.
Both an ontoepistemology for reductionist modern science (counter-ontoepistemology) and an ontology for interpretive Systemology have been outlined in the two preceding papers in this special issue ofSystems Practice. In the present article, the notion of “truth” is interpreted in terms of both the ontoepistemology of “reductionism” and the ontology of interpretive systemology. Both interpretations are discussed. Such a discussion represents the objective of this paper, that is, to outline the epistemological “face” of the ontoepistemology of interpretive systemology. In order to design that “epistemological face,” the relation between ontology and epistemology must be clarified. Such a relation is seen from the standpoint already provided by the ontology. After the discussion on the notion of truth, the general shape of a systemic-interpretive inquiring process is outlined.  相似文献   

13.
14.
从物理学和数学探讨了动力系统的平衡态以及吸引子平衡态的内涵 ,分析了吸引子的目的性特征及形成吸引子的耗散结构系统 ,它启示我们及早预警国民经济运行中出现的危机 ,促进经济的稳定发展  相似文献   

15.
On integration and adaptation in complex service systems   总被引:6,自引:6,他引:0  
The services sector employs a large and growing proportion of workers in the industrialized nations, and it is increasingly dependent on information and communication technologies. While the interdependences, similarities and complementarities of manufacturing and services are significant, there are considerable differences between goods and services, including the shift in focus from mass production to mass customization (whereby a service is produced and delivered in response to a customer's stated or imputed needs). In general, services can be considered to be knowledge-intensive agents or components which work together as providers and consumers to create or co-produce value. Like manufacturing systems, an efficient service system must be an integrated system of systems, leading to greater connectivity and interdependence. Integration must occur over the physical, temporal, organizational and functional dimensions, and must include methods concerned with the component, the management, and the system. Moreover, an effective service system must also be an adaptable system, leading to greater value and responsiveness. Adaptation must occur over the dimensions of monitoring, feedback, cybernetics and learning, and must include methods concerned with space, time, and system. In sum, service systems are indeed complex, especially due to the uncertainties associated with the human-centered aspects of such systems. Moreover, the system complexities can only be dealt with methods that enhance system integration and adaptation. The paper concludes with several insights, including a plea to shift the current misplaced focus on developing a science or discipline for services to further developing a systems engineering approach to services, an approach based on the integration and adaptation of a host of sciences or disciplines (e.g., physics, mathematics, statistics, psychology, sociology, etc.). In fact, what is required is a services-related transdisciplinary - beyond a single disciplinary - ontology or taxon  相似文献   

16.
企业财务弹性指数的构建及实证分析   总被引:5,自引:0,他引:5  
借鉴已有的研究成果,综合考虑现金指标、杠杆指标和外部融资成本指标三个方面,构建了财务弹性指数,阐明了财务弹性指数的具体计算方法。利用财务弹性指数对上市公司进行考察发现,我国上市公司的财务弹性指数整体偏低,且ST公司的财务弹性指数低于上市公司平均水平。对财务弹性指数的指标设计与结构合理性的检验表明,该指数的信度和效度令人满意。  相似文献   

17.
基于Web Services的生物信息集成框架   总被引:1,自引:0,他引:1  
生物信息学是用数理和信息科学的观点、理论和方法去研究生命现象、组织和分析呈现指数增长的生物学数据的一门学科。Web Services是一种面向服务的体系结构,其突出优点是实现了真正意义上的平台独立性和语言独立性。目前生物信息的数据库呈爆炸式增长。在分析Web Services的体系结构和关键技术后,提出一个基于Web Services的生物信息集成框架与服务类的概念,并对框架的工作原理进行了研究。该框架可以方便地用于各种已有的异构生物信息系统的集成。  相似文献   

18.
旋转相对论的实验证明   总被引:1,自引:0,他引:1  
殷瑞 《系统仿真学报》1999,11(4):302-306
狭义相对论不完整,广义相对论没给出研究非惯性系的简便方法。旋转相对论既包括了狭义相对论,并对它进行了补充,又能简便地对各种非惯性系进行研究,它是相对论的统一理论。库仑定律的实验基础是宏观距离上电力的测量,这既没有涉及微观距离,又没有考虑带电粒子都在高速自旋而具有的相对论效应。从而库仑定律对电力的描述并不全面。用以研究宏观电现象尚可,用在研究粒子世界的量子力学中就导致了一系列失误。牛顿万有引力定律也只是个“静引力”定律。星球,星系都在旋转。考虑了旋转相对论效应之后,对宇宙参考系来说,某些星球间是引力,而另一些星球间则是斥力(反引力),万有引力的提法本身就不准确。另外,引力真正的源不是质量而是电力。本文给出的两个实验证明了上述论点是正确的。  相似文献   

19.
1.IntroductionInthiscentury,theinventionofcomputerhasbroughtustoanewrevolutionera:weevencouldnotimaginewhattheworldwouldlooklikewithoutcomputer.Nowadays,wehavegottenusedtolettingcomputerhelpustodoinformationsearching,wordprocessing,complicatedcomputationsandsoon.Buthowaboutthementalworkmechanization,i.e.askingcomputertodomelltalworkforussuchasreasoning?MathematicsmechanizationisanewresearchfieldinitiatedbyProfessorWuWentsUnll]taChinesemathematician.Itisanalgebraicapproachratherthanalogicapp…  相似文献   

20.
要加强对复杂适应性系统的研究——对自组织理论的反思   总被引:1,自引:0,他引:1  
简单回顾了自组织理论的发展历史、内容和采用的方法,重点分析了自组织理论的研究对象和研究范围;指出自组织理论在研究复杂系统上的局限性——只适于研究简单巨系统,它研究的是系统演化的结果而非过程;自组织理论使用微分方程作为数学工具,要求子系统之间的相互作用要满足叠加原理而不考虑涌现的情况。在此基础上,本文提出要加强复杂适应性系统的研究,具体有两方面的工作:首先要加强计算机作为数学工具的应用,扩展对系统状态描述的范围;另外要加强对层次性的研究,重点是对涌现问题的分析。最后提出现在加强复杂系统的研究应从实际的具体系统入手。  相似文献   

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