对同时的相对性之认识

从一道例题的错误解法出发,阐述狭义相对论中同时的相对性以及同时性是测量的基础,本文认证了同时的相对性,并且提出测量相对静止物体的尺度并不要求同时性.     

关于相对运动时钟的相对性和绝对性

巧妙地利用狭义相对论中的同时相对性的结论 ,对相对运动时钟的相对性和绝对性进行分析 ,从而进一步说明了同时性的相对性这一结论具有普遍的意义。     

时钟疑难和时钟佯谬

狭义相对论与经典力学有本质区别的概念就是关于同时性的定义,爱因斯坦正是从这里看出绝对时空观的破绽,提出了光速不变的假设,建立了崭新的时空观.本文目的之一就是根据同时的相对性来解决时钟疑难问题.     

反相对论类似反鬼神论

在狭义相对论诞生一百年之际,有关狭义相对论的争论再次被推向一个高潮.争论的焦点有:(1)光速不变原理及其数学表述是否正确;(2)时间延长效应、尺寸缩短效应、同时性的相对性效应是否存在;(3)质量与能量是否能互相转化;(4)狭义相对论是否得到了实验验证.     

同时性的相对性不成立

同时性的相对性不成立梁尺峰（广西桂平市下湾中学５３７２１９）设参照系Ｓ′相对于参照系Ｓ作速度ｖ→的匀速直线运动，光相对于Ｓ和Ｓ′的真空中速度分别记为Ｃ和Ｃ′，则由经典速度相加定理有Ｃ＝Ｃ′＋ｖ→．上式成立吗？爱因斯坦（以下称爱氏）认为答案是肯定的；本...     

狭义相对性原理的实验证据研究

狭义相对论是近代物理学的基础理论之一,它的基本假设和各种相对论效应,已被许多实验检验和证实.狭义相对性原理是伽利略相对性原理的推广.通过对4个典型实验的原理及零结果的分析,阐述了狭义相对性原理的实验证据,展示了狭义相对性原理被实验检验的过程.     

爱因斯坦的狭义相对论是正确的吗?

物理学定律之一的相对性原理从任意惯性系看来的一致性最先由H.Poincarè推介,而Lorentz变换(LT)体现该原理,但H.Lorentz于1904年发表的相对性思想是在以太存在性之下得出的.1905年Einstein发表了著名论文,其中有一个公设——光速不变性原理,由此认为不需要以太,亦即用不着一个优先的参考系.后来的讨论总包含下述问题:Einstein的狭义相对论(SR)和改进的Lorentz理论(MOL),哪个更好地描述自然界?这两者的主要区别在于,SR认为所有惯性系都是平权、等效的,而MOL认为存在优先的参考系.多年来的众多研究讨论显示,SR存在逻辑上的不自洽,亦缺少真正确定的实验证实.由此可以理解欧洲核子研究中心(CERN)的著名科学家John Bell在1985年所说的话:"我想回到Einstein之前,即Pioncarè和Lorentz".这实际上是说SR是不正确的.现在我们应重新审视1905年Einstein以光速不变假设为基础的关于同时性的定义——当光信号由位置A传到位置B,并立即返回到A,则有时间关系式tB--tA=tA--tB.……但在2009年林金团队发表一篇论文,报道他们对Einstein光速不变假设的判决性实验检验,它是在中国科学院国家授时中心的高精度TWSTT(双向卫星时间传递)设施上完成的.通过对比单程光信号同时性定义和双程光信号同时性定义的测量机制证明:在有相对运动的情况下双程光信号中的"往"和"返"两个单程信号通过的时间必然是不相等的,因此tB--tA≠t'A--tB.在航天技术帮助下,林金教授证明了光速不变理论的错误.SR的逻辑基础是相对主义,会造成原理上的悖论.产生的各种悖论质疑了SR的自洽性,最著名的一个是P.Langevin于1911年提出的双生子佯谬.本文对时空一体化提出批评,相对论正是建筑在space-time概念的基础上.但space-time的意思是什么?人们其实并不知道.Minkowski建议了一个4维矢量,把时间与3维空间搞在一起.这种处理在数学表达上有优点,但与物理实际相悖.space-time在计量学和SI制中都不存在,并且没有可测性.把空间矢与时间矢相加根本不可能,没有任何意义!从根本上讲,时间与空间不能混合在一起.基于上述理由,我们认为Einstein的狭义相对论是不正确的.     

国家主权的相对性与绝对性

国家主权具有不可剥夺性、完整性、独立性、平等性等绝对性特点;同时国家主权在其基本内容、行使方式等方面又具有可变更性、差异性和有限性等相对性特点.国家主权的绝对性寓于相对性之中,通过相对性得到体现.分析了国家主权的绝对性、相对性,以及二者的辨证关系,以利于客观认识主权原则维护与主权发展的关系问题.     

关于“相对论”的时空理论

近年来有关“相对论”的讨论,多半集中在它的时空理论上,各种见解针锋相对,这种学术争鸣的空气大有益于“相对论”时空理论的发展.作为一个“场论”的爱好者,对这类讨论当然是很关心的.为此,我们想就以下几点,谈谈我们对“相对论”时空理论的一些不成熟的看法,有不当之处,敬请指点.1.关于相对性原理、时空系与物理定律之间的关系问题.这里,提出了我们对相对性原理的表述,阐述了相对性原理在时空系与物理定律关系问题上所起的作用,以及相对性原理与方程式协变的关系问题.     

非同时性数据采集对线路方向保护的影响

结合IMPLDI型线路微机保护装置,详细地分析了采用非同时性数据采集方式所引起的附加相移对线路方向保护的影响.将分析结果与实验数据进行比对,给出了校正措施及算法,指出基于此校正措施的非同时性数据采集方式在更高电压等级微机保护中的应用可行性.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that