首次在厦门地区地里纤恙螨体内分离恙虫病立克次体及…

１９９２年４－６月在厦门市石植物公园捕获的黄胸鼠体外采获大量地里纤恙螨，并从该螨分离出一株恙虫病立克次体，在光镜下立克次体呈圆形或椭圆形，其大小为０．４０２－０．７０３×０．５０２－０．９０４（０．５０８×０．６１７）μｍ，在扫描电镜下其形态多为圆球状，细胞内立克次体有一层０．２３μｍ厚的外膜，立克次体大小为０．２１８－０．７６０×０．３９５－１．０９９μｍ。     

福建海产鱼类寄生吸虫两新种（独睾科,二囊科）

从福建沿海的斑纹舌虾虎鱼肠道内发现独睾科的厦门独睾吸虫，新种Ｍｏｎｏｒｃｈｉｓｘｉ－ａｍｅｎｅｎｓｉｓｐ．ｎｏｖ．，虫体大小０．７６８～１．２３２×０．４００～０．６００ｍｍ（１．０５２×０．５１９ｍｍ），虫卵１２～１７×１０～１２μｍ（１４．６×１０．９μｍ）．从乔氏的消化道里发现二囊科的福建拟二囊吸虫，新种Ｂｉｖｅｉｃｕ－ｌｏｌｄｅｓｆｕｋｅｎｅｎｓｉｓｓｐ．ｎｏｖ．，虫体大小１．３２×１．０９ｍｍ，虫卵５７～６８×３４～４６μｍ（６３．５×４２．３μｍ）。     

柳毒蛾（Leucoma salicis Linnaeus）核型多角体病毒（Nuclearpolyhedrosisvirus）内蒙株的形态学研究

从内蒙古太仆寺旗自然死亡的柳毒蛾虫尸中分离提纯多角体．其平面图呈不规则形状，有三角形、四～六边形和近圆形．大小相差悬殊，直径在０．９４～２．４７μｍ之间．约有５６．４％的多角体在１．６０～２．１０μｍ之间，平均为１．７８μｍ．多角体硷解后释放出短杆状病毒束，大小为２０４～４１６ｎｍ×１０４～２９４ｎｍ之间，有４２％的病毒束在３４５～３６５ｎｍ×１６１～１８５ｎｍ之间，平均为３５８×１７０ｎｍ．约７４．１％的病毒束包埋４～７个病毒粒子．病毒粒子呈杆状．统计表明，约７２．８％的病毒粒子长度分布在３１０～３２０ｎｍ之间，平均大小为３１５×４９ｕｍ．测定不同龄期幼虫单体多角体产量的结果显示，５龄幼虫比４龄和３龄幼虫高得多．     

吸光度线性扩展法测定镨钕钐

用吸光度线性扩展法测定镨、钕、钐．基于待测元素特征吸收峰下的吸光度在纪录仪上线性放大，提高了测定的灵敏度、准确度，扩大了测定浓度范围．分别选用的最大吸收波长是：λＰｒ＝４４４．７ｎｍ，λＮｄ＝７９４．２ｎｍ，λＳｍ＝４０１．７ｎｍ；吸光度相应峰高和浓度呈线性关系的范围是：Ｐｒ３＋为（０．２０～８．６）×１０－６ｍｏｌ／Ｌ；Ｎｄ３＋为（０．２０～２．４）×１０－６ｍｏｌ／Ｌ；Ｓｍ为（０．２０～３．０）×１０－５ｍｏｌ／Ｌ．在选用１０ｃｍ比色皿时，测定灵敏度为：Ｐｒ３＋为１．１μｇ／ｍｌｍｍ，Ｎｄ３＋为０．２２μｇ／ｍｌｍｎ，Ｓｍ３＋为４．６μｇ／ｍｌｍｍ．待测元素与稀土杂质浓度比为５１时无干扰，１１时只有个别元素有一定干扰．     

DApBM-V(Ⅴ)-Mn(Ⅱ)-Tween-80体系光度法测定钒(V)

在磷酸介质中，在Ｍｎ（Ⅱ）和Ｔｗｅｎ－８０存在下，ＤＡｐＢＭ与钒（Ⅴ）生成橙黄色化合物，产物至少可稳定３．５ｈ．最大吸收波长为４８５ｎｍ．摩尔吸光系数ε＝４．０１×１０５Ｌ·ｍｏｌ－１·ｃｍ－１和ε＝１．５７×１０５Ｌ·ｍｏｌ－１·ｃｍ－１．钒（Ⅴ）量在０．５～３．０μｇ／２５ｍｌ及３．０～１０．０μｇ／２５ｍｌ间符合比尔定律．该体系灵敏度高，选择性较好，用于中草药中痕量钒（Ⅴ）的测定，结果满意     

光纤γ辐照感生损耗的研究

对几种国产光纤进行了γ辐照感生损耗谱的测量．发现光纤经辐照后，在０．６～０．７μｍ波段产生强烈吸收峰，在０．８～１．２μｍ区域感生损耗变化平缓，大于１．２μｍ有上升的趋势；同时给出了多模梯度光纤在０．８５μｍ波长下辐照感生损耗随辐照剂量变化的经验公式．γ辐照引起的顺磁缺陷中心导致光纤γ辐照感生损耗的产生．     

热红外低比辐射、高漫反射比表面

在金属和非金属基体上，制备出了热红外低比辐射率以及镜反射率和漫反射率都很低的高漫反射比表面。对黄铜基体，Ｔ＝３７３Ｋ，≥８μｍ的法向积分比辐射率ｎ＝０．１３，Ｔ＝４１３Ｋ，＝８－２５μｍ的积分镜反射率Ｒｍ＝０．１５．积分漫反射率ＲＤ＝０．１６；对Ｋ９玻璃基体Ｔ＝３７３Ｋ，≥８μｍ的ｎ＝０．１５，Ｔ＝４１３Ｋ，＝８～２５μｍ的Ｒｍ＝０．２１，ＲＤ＝０．１４．对于以Ｋ９玻璃为基体的同种表面材料镜面，在相同条件下测得ｎ＝０．１２，Ｒｍ＝０．９３．ＲＤ＝０．１２。     

0.2μm聚焦离子束系统中电源稳定度的研究

为了在所研制的二级透镜聚焦离子束系统中获得直径小于０．２μｍ的稳定束斑，并进行亚微米微细加工，分析了影响束斑大小及稳定性的因素，并着重从像差、散焦和漂移的角度，利用理论分析和模拟计算，研究了决定系统光学性能的离子源、离子引出极、预聚焦极、聚焦极所用高压电源及电对中、消像散透镜、偏转器所用低压电源的稳定度对离子束径的影响，得到了束直径小于０．２μｍ时电源必须达到的稳定度，即高压电源的纹波系数１×１０－４～１×１０－５，低压电源的纹波系数６×１０－４～１×１０－４。     

基于隧道效应的nm级三维轮廓仪的研究

介绍两种不同结构形式的基于电子隧道效应的ｎｍ级三维轮廓仪．其纵向分辨率可达００２ｎｍ，横向分辨率可达０２ｎｍ，扫描范围分别达到４０μｍ×４０μｍ和１４０μｍ×１４０μｍ．可直接对φ５０ｍｍ和φ１３０ｍｍ的大尺寸样品表面进行ｎｍ级的超微观形貌检测与分析．还给出了高定向石墨表现原子图像及一些超精密表面的超微观形貌测量的结果     

锇─钼酸盐──碱性染料显色反应的研究

在聚乙烯酸（ＰＶＡ）存在下，锇与铅酸铵和碱性染料（罗丹明Ｂ，了基罗丹明Ｂ，耐尔蓝）形成离子缔合物，不同碱性染料所形成的缔合物服从比耳定律的浓度范围和摩尔吸光系数分别是：０￣１．２μｇ／２５ｍｌ和ε５７０ｎｍ＝２．６２×１０６Ｌ·ｍｏｌ－１·ｃｍ－１（罗丹明Ｂ体系），０￣１．０μｇ／２５ｍｌ和ε５７０ｎｍ＝２．８６×１０６Ｌ·Ｃｍ－１（丁基罗丹明Ｂ体系）；０～１．８μｇ／２５ｍｌ和ε５８５ｎｍ＝２．８１×１０６Ｌ·ｍｏｌ－１·ｃｍ－１（耐尔蓝体系）研究了三个显色体系的光度特性和３０多种共存离子的影响，方法用于一些催化剂和冶金产品中锇的测定，结果满意．     

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.     

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     

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

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