JIGFEX程序的绘图系统(I) 绘制结构子图的多功能过程——GRAPH1

ＧＲＡＰＨ１过程是 ＤＤＪ和 ＪＩＧＦＥＸ系统后处理的一部份，用来绘制结构子图，其主要特性是： （１）垂直投影的投影方向可以任意选定； （２）控制子图的剖平面方向可以任意选定； （３）控制子图的厚度量可以任意选定； （４）在绘图仪的允许范围内，绘图幅面可以任意选定； （５）该过程附有数字发生器，结构图的四个极值点可以标称节点号，并划出图形标号： （６）给出投影方向和剖平面方向选定的两种形式。 此外，ＧＲＡＰＨ１还具有和其他程序装卸容易、本身的性能便于进一步扩展等特点。     

平移视点间的单应矩阵

主要讨论平移视点单应矩阵的特征理论，并应用于：（１）平面规范法向量平移向量的内积计算；（２）标准单应矩阵的确定；（３）从未标定图像判定空间平面是否平行；（４）摄像机自标定；（５）从标定图像，计算空间平面间的夹角。本文的结果在机器人视觉中具有重要应用价值。     

硬膜外应用新斯的明与吗啡术后镇痛效果比较

目的：比较硬外应用新斯的明或／或吗啡的术后镇痛效果，寻求术后镇痛效果，副作用相对少的镇痛方式。方法：选择７５例行下腹部手术病人，随机分为盐水对照组（Ｃ组），新斯的明１．５mg组（Ｎ组），吗啡１．５mg组（Ｍ组），新斯的明１．０mg＋吗啡１．０mg组（ＮＭ组）。观察注药后４、８、１２、２４、４８h时的礼堂模拟疼痛评分（ＶＡＳ）、副作用和首次肛门排气时间。结果：Ｃ组几乎无镇痛效果，ＮＭ组４、８、１２、２４h时的ＶＡＳ评分较Ｎ、Ｍ组明显偏低。Ｎ、Ｍ组恶性呕吐发生的率明显偏高，ＮＭ组增高不明显；Ｎ组呼吸道分泌物增多明显，ＮＭ组增多不明显；Ｍ组存在非常明显的皮肤瘙痒的尿潴留，ＮＭ组也有明显的皮肤瘙痒副作用，但尿潴留不明显；Ｍ组有明显的腹，ＮＭ组腹胀不明显，首次肛门排气时间较Ｍ组明显偏短，结论 ：硬膜外联合应用新斯的明和吗啡，可以减少各自的用量，进一步完善镇镇痛效果，降低各自的副作用。     

6种药用植物的染色体研究

对山东４科６种药用植物进行了染色体数目和核型研究，结果表明，毛曼陀曼Ｋ（２ｎ）＝２４＝２４ｍ，“１Ａ”核型；紫花曼陀罗，Ｋ（２ｎ）＝２４＝１４ｍ＋１０ｓｍ“２Ｂ”牛龙牛儿苗，Ｋ（２ｎ）＝１４＝１２ｍ＋２ｓｍ“１Ａ”核型，鸡眼草，Ｋ（２ｎ）＝２２＝１４ｍ＋８ｓｍ，“２Ａ”核型，委陵菜，Ｋ（２ｎ）＝１４＝１４ｍ，“１Ａ”核型；地榆，Ｋ（２ｎ）＝５４＝５４ｍ，“１Ｂ”核型，其中４种为首次报道。     

关于丢番图方程x^2—Dy^4=1的一些注记

对于丢番图方程ｘ＾２－Ｄｙ＾４＝１（Ｄ〉０且不是平方数），本文得到了如下结论：①当Ｄ＝ｐ是素数，且ｐ≠３，１５（ｍｏｄ１６）时，方程除开Ｄ＝５有解（ｘ，ｙ）＝（９，２）外，无其他的正整数解；②当Ｄ＝ｐ是素数时，方程除开Ｄ＝３有两组解（ｘ，ｙ）＝（２，１），（７，２）外，最多有一组正整数解；③当Ｄ＝４ｐ且奇素数ｐ≠１ｍｏｄ１６）时，方程除开Ｄ＝２０有解（ｘ，ｙ）＝（１６１，６）外，无其他的正整数解；     

巧用平移抛物线妙解二次函数题

二次函数类题是初三数学的重要内容，常在中考试题中出现。它往往涉及到一元二次方程的根的判别式和根与系数的关系、解方程或不等式等知识，计算繁琐，但其中某些问题可利用平移抛物线的方法巧妙求解。解这类问题的依据是：把抛物线左右平移，它的顶点纵坐标不变，它在X轴上截得的线段长不变；把抛物线上下平移，它的对称轴不变。现举例如下：例1已知抛物线y＝x2＋2（m－1）x＋2m－3（1）如果抛物线与X轴的负半轴有两个不同的交点，求m的取值范围；（2）设（1）题中的抛物线与X轴的两点交点为A、B，顶点为C，如果经过A、B、C三点的圆的…     

正算子补问题中的几个性质

正算子补问题中的几个性质裴君莹杜鸿科（陕西师范大学数学系，西安７１００６２；第一作者，女，２４岁，硕士研究生）设Ｈ１，Ｈ２是两个Ｈｉｌｂｅｒｔ空间，Ｂ（Ｈ１，Ｈ２）表示所有由Ｈ１到Ｈ２的有界线性算子全体之集．若Ｈ１＝Ｈ２＝Ｈ，则Ｂ（Ｈ１，Ｈ２）记为Ｂ...     

安徽百合属细胞学研究

本文研究了安徽产百合属（ＬｉｌｉｕｍＬ．）２种和２变种的染色体数目和核型，结果如下：野百合（Ｌ．ｂｒｏｗｎｉｉＦ．Ｅ．Ｂｒｏｗｎ）观察了２个居群。歙县居群观察到两种细胞型，细胞型Ⅰ：２ｎ＝２６＝１ｍ＋２Ｓｍ＋１０Ｓｔ＋１０ｔ＋３Ｔ；细胞型Ⅱ：２ｎ＝２４＋２Ｂｓ＝２ｍ＋２Ｓｍ＋８Ｓｔ（２ｓｃ）＋１２ｔ＋２Ｂｓ；石台居群核型公式为２ｎ＝２４＋１Ｂｓ＝３ｍ＋１Ｂｍ＋６Ｓｔ＋１２ｔ＋２Ｔ＋１Ｂｓ。百合（Ｌ．ｂｒｏｗｎｉｉＦ．Ｅ．Ｂｒｏｗｎｖａｒ．ｖｉｒｉｄｕ－ｌｕｍＢａｋｅｒ）核型公式为２ｎ＝２４＋１Ｂｓ＝４ｍ（２ｓｃ）＋１４Ｓｔ（２ｓｃ）＋６ｔ＋１Ｂｓ；药百合（Ｌ．ｓｐｅｃｉｏｓｕｎＴｈｕｎｂ．ｖａｒ，ｇｌｏｒｉｏｓｏｉｄｅｓＢａｋｅｒ）核型公式为２ｎ＝２４＝４ｍ＋９Ｓｔ（２ｓｃ）＋１０ｔ＋１Ｔ；条叶百合（Ｌ．ｃａｌｌｏｓｕｍＳｉｅｂ．ｅｔＺｕｃｅ．）核型公式为２ｎ＝２４＝２ｍ＋２Ｓｍ＋４Ｓｔ（２ｓｃ）＋１６ｔ。以上的核型类别全部属于“３Ｂ”型，其中野百合２ｎ＝２６的染色体数目和核型为首次记录。     

球面上的极大平移算子

证明了Ｒ＾ｎ＋１的单位球面上的极大平移算子ｎ≥３，ｐ〉ｎ（ｎ－１）时是Ｌ＾ｐ有界的；同时，缺项极大平移算子对于一切ｐ∈（１，∞）都是Ｌ＾ｐ有界的。这些结果平行于Ｒ＾ｎ中的经典结果。证明需要对于复指标Ｊａｃｏｂｉ多项式的估计。     

β—内啡肽能神经元系统在雌性大鼠视前区的增龄变化

用ＡＢＣ法免疫组化技术结合视学分析，对青组（３月龄）、中年组（１０－１２月龄）及老年组（２４－３０月龄）雌性大鼠视前区１－内啡肽能神经元系统进行研究。结果显示：室周核、内、外侧视前区各部位β－内啡肽能神经元胞体数量随增龄均无丢失；而上述三部位内β－内啡肽能神经纤维密度至中年组皆已降低，至老年组下降更为明显。实验表明β－内啡肽能神经元系统在雌性大鼠视前区随增龄发生了不均一性变化。     

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     

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