液态原料自动称重加料机构与控制算法

分析了液态原料混料加工在称重过程中存在的原料的粘稠度和流动性及加料仓液面高度对称重速度和准确度的影响,提出了加多料管计算机阀控称重控制、齿轮泵计算机称重控制和齿轮泵计算机变频模糊称重控制三种不同的加料机构和相应的控制算法,并较详细的阐述了这三种控制算法的基本原理、硬件基本组成及其优缺点,给出了三种方法的适用范围和相应的技术条件。实践证明三种控制算法具有很好的应用价值。     

粉状物料称重系统的预测控制

粉状物料称重系统是以自动称量方式将粉状物料按预定重量分装的称重系统．本文对粉状物料称重系统进行了具体的分析,并运用预测控制理论设计了一种预测控制算法以实现对该系统的高精度、高速度的控制     

人事管理中“进”人的数学探讨

针对在人事管理的“进”人活动中，只重“定性”考核，而轻“定量”的弊端，从平面直角坐标系中点到坐标圆点的距离出发，讨论了人事管理活动中“进”人的“定性”、“定量”两种考核的同等重要性，提出了“人事管理活动”中“定量”考核的两种数学考核模式，并加以论述。     

螺旋加料动态定量称重控制方法的研究

提出了一种新型螺旋加料动态定量称重控制方法 .该方法基于自校正预测控制算法 ,采用“先快后慢、最后点动”的动态控制方式 ,从而有效地解决了动态定量称重过程中精度和速度的矛盾 .理论和实验的研究表明 ,该方法对动态在线定量装料、定量包装和称重配料等方面具有广泛的应用潜力     

“授人以鱼”-“授人以渔”漫谈教学三种模式“授人以池”——漫谈教学三种模式

“授人以鱼”是直接把“鱼”（教学结果）给别人。“授人以渔”是直接把“怎样捕鱼”（学习方法）教给别人。“授人以池”是间接给人养鱼的原始材料，让别人通过“组料养鱼一学会养鱼——收获捕鱼”这个过程实践，从而获得知识和能力。笔者分析三种教学模式，学到一些教学之法。     

《中庸》首章"中"、"和"、"中节"解读

本文试图从两个方面诠解《中庸》首章的“中”“和”之论，一、根据《说文解字》段玉裁注及郭店简书《性自命出》等文的相关材料，可以将《中庸》“中”“和”之说解读为一种性情境界论。二、把《荀子》、《乐记》之“乐和同，礼别异”和“致礼以治躬”、“致乐以治心”的思想，同《中庸》“(情)发而皆中节，谓之和”的主张进行贯释发明，又可以看到，《中庸》作者在前贤以“和(龢)”为美思想的影响下，在性情论中灌注了调谐情感以相融的理念。     

当代资本主义“美国模式”与“莱茵模式”之争

冷战结束后，资本主义内部经济模式的分歧日益加深，其中以美国模式和莱茵模式最为明显。两种模式各有利弊，并在不同时期各领风骚。二者之争，是效率与公平之争，也是人们通常说的“冷酷的资本主义”与“温情的资本主义”之争。在竞争和改革中，目前两种模式日益趋同。     

膨化饲料中粗脂肪含量测定方法的研究

目的探讨膨化饲料中粗脂肪含量最适的测定方法。方法采用酸水解法和索氏抽提法分别测定膨化猴料、膨化犬料、颗粒鼠料和颗粒兔料的加工前粉料及其成品料中粗脂肪的含量。结果酸水解法测定的膨化猴料粗脂肪含量极显著高于索氏抽提法的测定结果(P<0.001),膨化犬料粗脂肪含量的测定值酸水解法显著高于索氏抽提法(P<0.05)。而对于膨化前的犬混合粉料和猴混合粉料,两种方法的脂肪含量测定结果均差异不显著(P>0.05)。索氏抽提法和酸水解法测定颗粒料加工前粉料及加工后成品料中粗脂肪含量值均差异不显著(P>0.05)。酸水解法测定的饲料加工前后粗脂肪损失率均低于索氏抽提法的测定值。结论酸水解法能更准确的测定膨化饲料中粗脂肪的含量。     

"疹"之音义与"反(返)"之文化内涵

本文对现行高一语文教材的两处文言注释提出疑问，并阐明如下观点：一、《勾践灭吴》中“疾疹”为名词活用作动词，“疹”通“疢”，音Chen。二、从先秦礼仪的角度入手，援引相关史料分析了先秦诸侯已嫁之女“归宁”、“来归”的两种情形，挖掘出《触龙说赵太后》中“必勿使反”之“反”的文化蕴含，指出“反”具有“古代已嫁之女被夫家遣返回娘家”的特指义。行文的目的是试图为传统说解提供些许文化性补注。     

《汉语大字典》"通"字用法解读

《汉语大字典》中大量使用“通”词条,这其中的“通”反映了我国文字发展及其使用过程中的两种现象,即“同音借用”现象与“同源通用”现象,前者所指的意义叫“用字通假义”,后者所指的意义叫“同源通用义”。两种现象有同有异,有本质区别;两种意义亦有本质区别。     

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