增重率对化学镀铜-镍涤纶织物电磁屏蔽性能的影响

采用化学镀技术，实现了涤纶织物表面铜-镍双层镀．借助SEM、EDX和TG分析了镀层表面的形貌、成分以及热性能，并测试了化学镀涤纶织物的电磁波屏蔽、表面比电阻和拉伸性能．结果表明，涤纶织物化学镀铜-镍后热分解温度有所下降．随着化学镀涤纶织物增重率的增加，电磁波屏蔽效能开始时增加较快，后又趋于平缓；当增重率达到一定值时，屏蔽效能主要受金属镀层成分的影响．表面比电阻随着增重率的增加而减小．化学镀涤纶织物的拉伸曲线同时具有金属和纤维的拉伸特性，主要受金属镀层厚度的影响．     

混纺比对异形涤纶混纺纱光泽的影响

基于不同混纺比，借助于显微镜观察和利用Onions指数法研究了7种异形涤纶混纺纱线中三角涤纶纤维的径向分布对纱线光泽的影响．根据实验结果得出纱线光泽与Onions指数有较高的相关性；Onions指数与三角涤纶的混纺比成线性关系，而三角涤纶的利用率与三角涤纶含量并不成线性关系．     

多功能仿毛涤纶纤维性能的研究

测试了广东肇庆产多功能涤纶纤维的截面特性、机械力学性能及热性能；并与普通涤纶纤维及日本ＳＰｉｋｉｏ仿毛涤纶纤维作比较，为制织仿毛织物提供依据．     

加捻程度对着色涤纶纱线颜色变化规律的影响

为探究加捻对着色涤纶长丝颜色变化的影响规律,满足色纺纱线及最终着色涤纶织物的产品设计的需要,采用思维士测色仪测试和分析了不同加捻程度的着色(棕绿色)涤纶长丝纱线的颜色变化规律．测试结果表明：随着纱线加捻程度的增加,着色涤纶长丝纱线颜色的色度指标明度、饱和度呈负指数规律下降,色调角略有增大．即纱线颜色将变“深”、“暗”,且其色相偏向于“蓝绿”色调．     

转移印花技术在涤纶投影片制作中的应用

叙述了一种绘制涤纶投影片的新方法——转移印花法．利用分散染料的升华性及涤纶投影片对它的良好吸收性，使转印纸上的图案清晰地转移到涤纶片上．探讨了印转印纸的油墨配方及转移印花工艺     

细旦涤纶半精纺梳毛机针布的研制及选配

在分析细旦改性涤纶性能的基础上，结合梳理理论提出了细旦涤纶半精纺梳毛机针布设计和选配的原理．设计并选配了一套适合于细旦涤纶的梳理针布，取得了良好的生产使用效果．     

C.I.分散红60及其同系列染料在不同pH染浴中的染色性能

在不同ｐＨ染浴中测试了Ｃ．Ｉ．分散红６０及其相关品种（Ｃ。Ｉ。分散红１２７、１４６及１９１）对涤纶织物的染色性能。结果表明,染浴ｐＨ不影响Ｃ．Ｉ．分散红６０、１９１对涤纶织物染色的提升力。中性、碱性染浴下Ｃ。Ｉ。分散红１４６对涤纶织物的染色性能优于酸性染浴。Ｃ．Ｉ．分散红１２７在碱性染浴下对涤纶织物染色的提升力小于中性染浴,在酸性条件下能获得最佳提升力。染浴ｐＨ对上述染料的而晒、耐升华牢度没有影响     

涤纶母体着色剂

涤纶母体着色剂科研项目是北京市科委下达给我院的科研任务。我院从1979年开始研究涤纶母体着色剂中载体树脂的组成、配比及共聚条件,其中包括助剂的筛选,对共聚反应条件的影响。研制以溶剂法和可溶性法两条不同工艺路线的涤纶母体着色剂,并对所用载体树脂进行研究。确定了二氧六环为溶剂、三元共聚树脂为载体树脂及选用耐高温的有机颜料三者一起进行颜料预处理来制备涤纶母体着色剂的方法。     

Coolbst异形涤纶纤维的导湿、透汽性能的研究

研究了Coolbst异形涤纶纤维的表面性能及其物理机械性能，测试了Coolbst纤维的毛细高度、扩散面积和透湿气性能，并与常规涤纶和棉纤维进行了比较．结果表明，Coolbs纤维的毛细高度、扩散面积等表征纤维吸湿排汗性和透气性等指标均好于常规涤纶和棉纤维，略逊于Coolmax纤维，已达到吸湿排汗纤维的标准．     

涤纶仿毛织物热湿舒适性能的评价

优良的涤纶化纤仿毛织物除应具有羊毛织物的外观及手感外，还应具有与羊毛织物相似的的舒适性．本文将涤纶化纤仿毛织物与羊毛织物的舒适性能的差异进行了比较．通过主成份分析．探讨影响两者舒适性能差异的主要因素，同时利用欧氏空间距离概念，建立评价涤纶化纤仿毛织物舒适性的客观性指标．     

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     

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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