爱因斯坦与布朗运动

简要介绍了原子-分子理论的发展过程、爱因斯坦对于布朗运动的理论研究和佩兰对爱因斯坦布朗运动理论的验证.     

爱因斯坦对时空概念的变革

就19世纪末物理学在实验和理论两个方面遇到的困难,分析爱因斯坦如何在错综复杂的问题中大胆对经典物理时空概念进行深刻变革,创立了全新的现代物理时空观,揭示了爱因斯坦科学的物理思想方法．     

爱因斯坦的科学贡献及其哲学意义

对爱因斯坦的生平,特别是爱因斯坦在瑞士伯尔尼专利局期间的情况进行分析,总结出至少有三个原因使爱因斯坦能在科学探索过程中取得丰硕的成果.其次重点对爱因斯坦科学成就、科学方法等方面进行回顾和综述,评述相对论及其哲学意义,指出相对论对于物理学的发展和现代人类思维逻辑方式都产生了重大而深远的影响.     

我院举行爱因斯坦科学成就报告会

三月十四日,是伟大的物理学家爱因斯坦诞辰一百周年。为纪念这位二十世纪的科学巨匠,我院举行了爱因斯坦科学成就报告会。 报告会上,我院物理教研室陈方培、金百顺同志分别作了《狭义相对论》、《广义相对论》、《布朗运动》、《光子学说》等五篇专题报告。报告中着重讲述了爱因斯坦提出的狭义相对性原理和光速不变原理,并用来取代牛顿在物理学中统治了二百年的绝对空间和绝对时间的概念,创立了狭义相对论。又在推广狭义相对论的同时,把相对性理论从匀速运动引导到加速运动上去,成功地创立了广义相对论,进一步提出了四维时空与物质的统一关…     

爱因斯坦创建狭义相对论的独特思路

对20世纪初相对论诞生之前的物理学发展进行了回顾,分析了在1905年爱因斯坦发表著名的狭义相对论之前,物理学家如洛伦兹、庞加莱等人尽管已经走到了狭义相对论的边缘,得到了狭义相对论的一些结论,但最终却没能创建一个全新的物理学理论体系的深刻内因。从物理学发展的科学规律出发,对爱因斯坦勇于实践、积极探索、自觉运用辩证唯物主义方法论进行科学研究的特点进行了分析研究,指出爱因斯坦科学的方法论,对事物穷根究底的探索态度,对自然界事物的新奇感,是他不断创造新的物理学奇迹的根本原因。     

物理方法向文科移植例析

理科(特别是物理学)的理论和方法向文科渗透,已经越来越引人注目。笔者发现近几年来不少社会科学领域的研究文章移植物理学的思想方法,以寻找新的研究角度。这一交叉研究现象值得关注和研究。本文首先列举一些案例,然后对之进行分析,进而阐述移植物理学方法的客观基础。一本世纪初,由爱因斯坦创立的相对论和普朗克等一批科学家创立的量子论,把物理学理论推向一个崭新的阶段,改变了自然科     

"文革"期间的爱因斯坦批判

“文革”期间,中国开展过一系列批判自然科学领域中“资产阶级反动思想”的活动.作者根据有关原始资料,从政治和科学思想两个方面讨论了这一时期对爱因斯坦的批判情况,并对这一批判活动的性质及方法作了初步分析,认为,“文革”期间对爱因斯坦的批判是一种政治批判和哲学批判,所用的批判方法主要是故意歪曲事实,进行诡辩,将爱因斯坦的一般言论加以政治歪曲,以哲学标准评价爱因斯坦的物理学认识.     

纪念广义相对论100周年及其科学方法分析

广义相对论是爱因斯坦科学精神和科学思想的杰出体现,是物理学探索整体引力场控制世界的一把钥匙,是现代宇宙学的理论基础.它与狭义相对论一起构成了现代物理学的基础之一——相对论理论.回顾了广义相对论建立的过程,探讨了广义相对论的意义以及建立过程中使用的科学方法,对广义相对论未来发展的前景进行了展望,以纪念广义相对论发表100周年.     

“文革”期间的爱因斯坦批判

“文革”期间，中国开展过一系列批判自然科学领域中“资产阶级反动思想”的活动．作者根据有关原始资料，从政治和科学思想两个方面讨论了这一时期对爱因斯坦的批判情况，并对这一批判活动的性质厦方法作了初步分析，认为，“文革”期间对爱因斯坦的批判是一种政治批判和哲学批判，所用的批判方法主要是故意歪曲事实，进行诡辩，将爱因斯坦的一般言论加以政治歪曲，以哲学标准评价爱因斯坦的物理学认识．     

简评爱因斯坦及其科学贡献

首先对爱因斯坦的生平,特别是爱因斯坦在瑞士伯尔尼专利局期间的情况进行分析,总结至少有三个原因使爱因斯坦能在科学探索过程中取得丰硕的成果.其次重点对其科学成就、科学方法等方面进行回顾和综述,评述相对论及其哲学意义,即相对论对于现代物理学的发展和现代人类思维的方式都产生了重大而深远的影响.最后回忆爱因斯坦和中国的交往,主要通过同周培源和束星北的交往为线索加以介绍,以此纪念伟大的相对论发表100周年.     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-