楮时资源利用价值初探──Ⅱ．提取物的抗氧化作用研究

为寻找质优价廉、丰富易得，并能防病治病的天然食品抗氧剂，本文中采用“烘箱法”对楮叶的醇提取物和水提取物在花生油中的抗氧化作用进行了考察。结果表明，两种提取物的添加量为０．６％时，其抗氧化作用均明显高于Ｖｃ（５００μｇ／ｇ）的抗氧化作用，且醇提取物的抗氧活性高于水提取物的抗氧活性。     

楮叶资源利用价值初探：Ⅱ.提取物的抗氧化作用研究

为发找质优价廉、丰富易得，并能防病治病的天然食品抗氧剂，本文中采用“烘箱法”对楮叶的醇提取物和水提取物在花生油中的抗氧化作用进行了考察。结果表明，两种提取物的添贺量为０．６％时，其抗氧化作用均明显高于Ｖｃ（５００μｇ／ｇ）的抗氧化作用，且醇提取物的抗氧活性高于水提取物的抗氧活性。     

可生物降解汽油机油基础油抗氧化性能试验

针对菜籽油应用于润滑油基础油抗氧化性能比较差的缺点 ,合理地选用在矿物基润滑油中作用性能良好的抗氧剂 ,考察其对菜籽油抗氧性能的影响。试验表明 ,DNA和 Tp 两种添加剂能显著提高菜籽油的抗氧化性能 ;T2 0 2、Cu DTP等在矿物基润滑油中起着优良抗氧化性能的添加剂在菜籽油中作用效果不显著 ;在矿物油中兼起抗氧作用的 T70 6在以菜籽油为主的基础油中抗氧抗腐效果不显著。     

新疆哈密瓜蔓枯病菌的生物学特性及其室内药剂筛选试验

本试验研究证明，新疆哈密瓜蔓枯病菌在pH4～10均可生长，以pH5～8之间生长最佳；其菌丝生长温度为10～34℃，最适生长温度为25～28℃；在供试培养基中以PDA、PSA和菜豆培养基上生长良好；供试的不同温度、培养基及不同酸碱环境均未见有分生孢子器和假囊壳产生。用生长速率法测定了12种药剂对瓜类蔓枯菌的抑制作用，结果以25％卡菌丹、40％除病灵、70％甲基托布津抑菌效果最为明显，在200～1000mg．kg^-1范围内抑菌率均为100％，50％金雷多米尔．锰锌和10％世高也表现出良好的抑菌效果。     

速克灵与百菌清混合制剂的分析方法研究

论述了在同一气相色谱条件下测定速克灵、百菌清混合制剂中有效成分含量的方法。该法简单、快速、准确。速克灵(pmcymibone)、百菌清(chlorothanil)变异系数分别为2．1，0．66，回收率分别为98．0％～100．6％和99．3％～100．8％，线性相关系数分别为0．9500和0．9987。     

TiC-C复合粉体的制备及其对低碳镁碳砖抗氧化性能的影响

以锐钛矿、金属钛（Ti）和炭黑为原料，合成了TiC—C复合粉体，研究该复合粉体的氧化特性及其对低碳镁碳砖抗氧化性能的影响。研究结果表明，在真空条件下可合成出纯度较高的TiC-C复合粉体，其粒径小于0．5μm。TiC-C复合粉体的差热分析表明，这种复合粉体对碳的氧化有一定的保护作用。在低碳镁碳砖中加入wTiC为0．2％～0．4％之间的TiC-C复合粉体后，砖的抗氧化性能明显改善。     

酸析-CaO中和-厌氧流化床反应器处理硫酸盐草浆黑液的研究

提出了酸析-CaO中和-厌氧流化床反应器处理硫酸盐草浆黑液的方法，黑液经综合处理后，其COD去除率可达91．8％～96．5％，SS去除率可达72．8％～74．3％，色度去除率可达85．8％～90．5％。对减轻黑液的污染具有明显的效果。     

三种杀菌剂对灰葡萄孢菌的毒力测定

采用培养皿滤纸抑菌圈法，测定三种杀菌剂（利得，克露，速克灵）不同浓度对灰葡萄孢菌的抑菌能力。结果表明：三种杀菌浓度在５１２０ｍｇ／Ｌ时，对灰葡萄孢菌的抑制率利得为７１．３３％，速克灵为５９．６７％，克露为３４．６７％，２０ｍｇ／Ｌ时三种药物的抑菌平均为零。抑菌效果以利得最高，是速克灵的１．１２倍，克露的２．８５倍。     

茶叶提取物抗氧化活性的研究

用乙醇和乙酸乙酯为溶剂提取松溪绿茶，获得乙醇绿茶提取物和乙酸乙酯绿菘提取物． 这两种提取物茶多酚含量分别为６８．７５％（乙醇）和９６．５％（乙酸乙酯），并对豆油、菜油、棕榈油、 花生油、猪油均有良好的抗氧化活性，在威化饼干夹心油脂的感官审评中，也呈现很好的抗氧化效果．     

涟钢CSP线LF终渣成分模型的计算及后台试运行

采用物料平衡原理对涟钢CSP工艺中LF终渣成分作了理论计算，其计算成分范围w（CaO）为52％～62％，w（SiO2）为5．5％～6．5％，w（Al2O3）为17％～28％，w（MgO）为5．5％～6．5％，同时还计算了该终渣系的四元碱度和光学碱度范围，即分别为R4=1．70～2．90，Λ=0．78～0．84。计算结果表明，理论计算与实际检测结果基本一致，与目标控制值相差不大，从理论上建立精炼渣加料模型实现计算机程序界面化操作是可行的。在后台试运行中，模型的初期命中率为70％，修正后预期效果可达到90％以上。     

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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