气球系统锚泊状态动力学仿真

气球系统锚泊状态由气球、左右两侧机械拉索、地面转动梁、气垫组成。风向改变时,气球通过机械拉索带动地面部件一起转动。运用Matlab/Simulink工具箱,可方便的进行系统建模,对气球系统抗风性能进行仿真分析,为气球系统设计与使用提供依据。     

海洋石油102YOKE加强环改造影响分析

海洋石油102水上软钢臂式系泊系统在发生YOKE压溃事故后,对其YOKE结构进行了相应的加强,但改造造成的潜在影响尚未明晰.本文从结构强度角度,分析YOKE加强环改造影响,计算结果表明,认为改造后YOKE结构主要影响为由原有的弹性形变占主要作用变为刚性的应力集中占主要作用,改造后的储备强度不完全满足使用要求,应尽快对其进行相应加强.     

基于悬链线理论对系泊系统的优化设计

针对系泊系统设计,对不同海况条件下锚链、钢桶及钢管和浮标进行受力分析,综合使用经典力学、悬链线理论等方法,分别建立系泊系统受力、重物球质量迭代等模型,利用MATLAB编程,得出不同海况下钢桶和各节钢管的倾角、浮标的吃水深度及游动区域、锚链的形状及约束条件下的重物球的质量等结果。     

在役水上软钢臂式系泊系统风险评价简述

近年来软刚臂式单点系泊系统事故屡有发生,因此,有必要对渤海软刚臂式系泊系统关键风险点进行识别,并对风险点进行相应管控.该文对我国渤海海域软钢臂式系泊系统进行了风险辨识与评价,并对其中若干关键风险点进行了相应的解析,为制定相应的RBI检验策略提供依据.     

杜牧《泊秦淮》五种英译文的逻辑功能分析

本文从韩礼德功能语法的逻辑功能角度对杜牧的《泊秦淮》一诗和它的五种英译文作初步的探索,分析小句与小句之间的语义关系是通过语言形式进行体现。虽然不同的译者可能采用不同的翻译方法,但他们对语篇中小句之间的语义关系的把握基本一致。进而表明,对译文进行功能语言分析有益于古诗英译。     

再论"江枫渔火对愁眠"--与姚振武先生商榷

语法规则往往因文体而异,诗词语法程度远不如散文严格,因而不能用散文语法来规范诗词.对张继<枫桥夜泊>"江枫渔火对愁眠"一句,根据<全唐诗>中的"愁眠"用例以及诗歌用语的特点,并非只可解读为"江枫渔火对着愁眠的人",还可作两种解释对着江枫渔火怀着愁绪而眠;愁人对着江枫渔火而眠.     

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.     

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     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has     

Regulation of canonical Wnt/β-catenin pathway in the nucleus

Canonical Wnt/β-catenin pathway plays a central role in development, homeostasis, as well as tumorigenesis. The regulation of the pathway involves various and complicated mechanisms, including the extracellular, intracellular and endonuclear regulation. As the key component of the pathway, the Lefl/Tcfs-β-catenin complex is also the key target of regulation in the nucleus. In the current review, we are going to summarize the regulators in the nucleus which can modify the transcrip- tional activity of the Wnt/β-catenin pathway.     

Preface

正The standard model(SM)in particle physics has been successfully tested by the present experimental observations.The SM consists of electroweak unification theory and quantum chromodynamics(QCD)theory with light quarks(u;d;s)and heavy quarks(c;b;t)as its fundamental components.Usually,these quarks are named as the light flavor and the heavy flavor.In addition to quarks,there are intermediate gauge bosons and gluons for mediating the