高压静电场诱发小麦根尖染色体畸变的分析

用高压静电场（ＨＶＥＦ）处理萌发的小麦种子、诱发小麦根尖染色体畸变,发现经ＨＶＥＦ诱变后,小麦染色体具畸变频率高,畸变类型多等特点,其畸变类型主要为染色体桥、染色体落后和染体断片,同时也见到不等分裂、单极纺锤体和多极钫锤体等,并对以体畸谱类型进行了比较分析。     

结构分析可视化系统FEVS的设计与实现

详细阐述了ＦＥＶＳ系统的设计思想、系统结构、数据管理及其多种处理和显示数据场的方法；讨论了等值线、等值面及剖面的生成与实现算法．ＦＥＶＳ可用于对工程结构经有限元分析后所产生的非结构化三维数据场进行可视化处理．结果表明，该系统功能全面，使用方便，其算法具有通用性．     

结构分析可视化系统FEVS的设计与实现

详细阐述了ＦＥＶＳ系统的设计思想、系统结构、数据管理及其多种处理和显数据的方法；讨论了等值线、等值面及剖面的生成与实现算法。ＦＥＶＳ可用于对工程结构有限元分析后所产生的非结构化三维数据场进行可视化处理。结果表明，该系统功能全面，使用方便，其算法具有通用性。     

外磁场对Fe-Cr-Co系永磁体磁性的影响

研究了稳恒和交变磁场对５种Ｆｅ－Ｃｒ－Ｃｏ系永磁体磁性的影响，得到了磁场强 度及其作用时间对磁性的影响规律。结果表明：含Ｖ和Ｔｉ的三种试样的磁稳定性 比不含Ｖ和Ｔｉ的好。还探讨了磁稳定化处理问题。含Ｖ和Ｔｉ的试样的稳定化 处理，其稳恒场为３１．８４ｋＡ／ｍ，交变场为 ３．９８～７.９６ｋＡ／ｍ；不含Ｖ和Ｔｉ的试 样的稳定化处理，其稳恒场为７．９６ ｍＡ／ｍ，交变场为１.９９～５．９７ｋＡ／ｍ．     

尼克刹米对三种果树花粉生活力的影响(简报)

尼克刹米对三种果树花粉生活力的影响（简报）宋金耀刘永军孟庆祥牛春霞王玉芬（河北农业技术师范学院园艺系,昌黎,０６６６００）ＥＦＦＥＣＴＳＯＦＮＩＫＥＴＨＡＭＩＤＥＯＮＴＨＥＰＯＬＬＥＮＡＣＴＩＶＩＴＩＥＳＯＦＡＰＰＬＥ,ＰＥＡＣＨＡＮＤＰＥＡＲ（ＢＵ...     

THE OPTICAL OBSERVATION OF THE COLLISTIONS OF COMET SHOEMAKER－LEVY 9 WITH JUPITER

ＴＨＥＯＰＴＩＣＡＬＯＢＳＥＲＶＡＴＩＯＮＯＦＴＨＥＣＯＬＬＩＳＴＩＯＮＳＯＦＣＯＭＥＴＳＨＯＥＭＡＫＥＲ－ＬＥＶＹ９ＷＩＴＨＪＵＰＩＴＥＲ￥ＺｈｏｕＨｏｎｇｎａｎ（ＤｅｐａｒｔｍｅｎｔｏｆＡｓｔｒｏｎｏｍｙ，ＮａｎｊｉｎｇＵｎｉｖｅｒｓｉｔｙ，２１...     

棉铃虫细胞系SFE—HA—8212的克隆化及对HaSNPV受纳性提高的克隆系的建立

用细胞临界生长密度法对棉铃虫蛹卵巢细胞系ＳＦＥ—ＨＡ—８２１２进行克隆化，获得８株克隆细胞系．各株克隆细胞系各自的形态较为均一，但相互间在形态、生长特性、对病毒受纳性等方面有很大差别，其中一株ＣＳ细胞对棉铃虫单粒包埋型核型多角体病毒（ＨａＳＮＰＶ）的受纳性明显高于ＳＦＥ—ＨＡ—８２１２细胞，形成多角体的细胞比率、多角体的产量、游离病毒粒子的产量及多角体蛋白的产量均有提高，是研究和应用ＨａＳＮＰＶ的有效系统．     

慢性乙肝病毒感染者外周血单个核细胞染色体遭受病毒损害的见证

用Ｓｏｕｔｈｅｍ　ｂｌｏｔ分子杂交技术，检测９９例ＨＢＶＭ阳性的慢性ＨＢＶ感染者外周血单个核细胞（ＰＢＭＣｓ）内ＨＢＶＤＮＡ的存在状态，其中７１例同时用ＢｒｄＵ标记法检测细胞中姊妹染色体交换（ＳＣＥ）率，观察ＨＢＶ对宿主单个核细胞染色体的损害情况。结果发现４２例被检者（４２．４２％）的ＰＢＭＣｓ中存在ＨＢＶＤＮＡ（游离型或整合型，有的还见到游离的复制中间体），正常对照组则无１例检出ＨＢＶＤＮＡ。被检者ＰＢＭＣｓ的平均ＳＣＥ率明显高于对照组，其中ＨＢＶＤＮＡ（＋）组又显著高于ＨＢＶＤＮＡ（－）组。证明ＨＢＶ的入侵与ＳＣＥ率升高之间有密切关系，提示ＨＢＶ对单个核细胞染色体形成了损害。这一现象可能是慢性乙肝病毒感染者免疫功能紊乱和ＨＢＶ长期不能清除等系列表现的原因之一。     

棉铃虫细胞系SFE—HA—8212的克隆化及对HaSNPV受纳性提高的…

用细胞临界生长密度法对棉铃虫蛹卵巢细胞系ＳＦＥ－ＨＡ－８２１２进行克隆化，获得８株克隆细胞系。各株克隆细胞系各自的形态较为均一，但相互间在形态，生长特性，对病受毒纳性等方面有很大差别，其中一株Ｃ８细胞对棉铃虫单粒包埋型多角体病毒（ＨａＳＮＰＶ）的受纳性明显高于ＳＦＥ－ＨＡ－８２１２细胞，形成角体的细胞比率，多角体的产量，游离病毒粒子的产量及多角体蛋白的产量均有提高，是研究和应用ＨａＳＮＰＶ的有效系     

非晶硅太阳电池的性能与薄膜特性的关系

在ＲｉｃｈａｒｄＳ．Ｃｒａｎｄａｌｌ和Ｐｏｒｐｏｎｔｈ Ｓｉｃｈａｎｕｇｒｉｓｔ等人工作的基础上,用平均场区域近似（ＵＦＲＡ）方法,对ｐ－ｉ－ｎａ－Ｓｉ：Ｈ薄膜太阳电池进行了解析分析,得出了电池性能参数与本征层光学带Ｅｇ、电子迁移率Ｕｎ的关系。开路电压Ｖｏｃ、短路电流Ｊｓｃ、电池效率随Ｅｇ的增大而急剧减小,而填充因子Ｆｆ随Ｅｇ的增大而缓慢减小。Ｖｏｃ,Ｊｓｃ,Ｆｆ都随Ｕｎ的增大而增大,变化最大,其     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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