喷火器系统效能分析与评价

喷火作战是一种利用火焰射流实施毁伤的近距离作战模式,在近现代历次战争中发挥了独特的火力支援作用.但现役火药式喷火器固有的使用缺陷使其在未来作战中无法满足灵活作战的实际需要,因此提出新型喷火器的设计思路,并采用ADC模型分析法,通过可用性、可信性和能力矩阵的建立,构建现役火药式喷火器和新型喷火器的系统效能分析模型,并对两种喷火器的系统效能进行对比分析.结果显示,新型喷火器在整体系统效能和使用完好性上都体现出明显优势.喷火器ADC模型的构建在实现喷火器系统效能量化分析的基础上,为新型喷火器的论证研制提供理论依据.      

空对空多目标跟踪攻击系统作战效能分析

空对空多目标跟踪攻击系统作战效能仿真与分析有助于航空电子综合火力控制系统的整体评价.从数字仿真的角度出发,建立了相控阵雷达多目标跟踪模型、三维空战次最优火控模型以及作战效能评估模型,基于航空电子综合火力控制系统的大闭环思想,提出了系统作战效能分析指标和方法.1:2多目标跟踪攻击进行仿真和效能分析验证了算法的有效性,为航空电子综合火控系统整体性研究奠定了基础.     

高炮跟踪系统的仿真

以某自行高炮系统为对象，介绍了一个在实时仿真跟踪系统的实现，主要包括系统设计思想和基本原理，硬件组成，软件设计以及系统主要特点和实验分析，该系统的实现为自行炮跟踪系统提供了研究手段。     

攻击机对地攻击WSEIAC模型研究

为有效分析攻击机的作战效能，在航空武器性能指标基础上，以突防敌地面防空火力为作战背景，从实战角度提出了攻击机对地攻击的WSEIAC模型及模型参数的确定方法，给出了效能评估的基本过程并进行了应用实例分析。结果表明该模型较充分考虑了影响武器效能的多种因素，客观的描述了攻击机对地作战的实质，能够为作战指挥人员提供决策参考。     

自行高炮武器系统电磁兼容性分析与评价试验方法

首先描述了自行高炮武器系统的特点,并结合这一特点对自行高炮武器系统电磁兼容性试验进行了探讨,给出了现有试验条件下,进行自行高炮武器系统电磁兼容性试验的方法,为自行高炮武器系统电磁兼容试验大纲的制定、试验实施提供借鉴和参考。     

某型高炮随动系统数字化接口设计

为实现数字式单炮火控系统或便携式火控系统对老式牵引高炮的直接控制,使高炮灵活的单炮作战样式成为可能,本设计利用传感器技术、嵌入式技术、控制理论、数字/交流变换技术等,实现数字化火控信息的直接接收、高炮自身射角、方位角的高精度数字化测定以及高炮随动系统的数字化控制,对提高老式高炮的作战效能有重要意义。     

多用途中口径火炮火力综合打击效能评估

为分析多用途中口径火炮火力效能,对多用途中口径火炮火力综合打击效能进行了评估。根据多用途中口径火炮的内涵,将火力打击能力分解为间瞄压制能力、直瞄穿甲能力和防空能力,在基于美国工业界武器系统效能咨询委员会(WSEIAC)的效能评估模型框架下引入作战任务分配系数,并对火力分打击能力进行归一化数学建模,得到多用途中口径火炮火力综合打击效能评估值。通过与现役陆军单一用途火炮实例对比分析表明该文建立的效能评估模型能够较好地评估多用途中口径火炮火力综合打击效能。     

改进ADC法的C4ISR系统效能评估

针对ADC法中决定能力矩阵C的诸多随机事件复杂多变,且部分指标缺乏定量描述的问题,对该方法进行改进,即联合使用ADC法与层次分析法、专家征询法,通过定性与定量结合,实现对C4ISR系统效能的评估.首先,在分析传统ADC评估方法优缺点的基础上,确定本文采用的评估方法——改进ADC法.其次,建立基于改进ADC法的C4ISR系统效能评估指标体系及评估的基本程序.再次,分别建立可用性向量A、可信性矩阵D、能力矩阵C及其子模型的计算模型.其中重点描述了在ADC法基础上,综合运用层次分析法、专家征询法等方法建立能力矩阵C及其子模型的过程.最后通过实例计算分析,验证所建立模型的有效性和可用性.     

小高炮系统效能分析

本文通过对防空武器系统效能指标的分析,提出了“加权平均发现概率”、“有效射击域”“加权平均毁伤概率”等指标。建立了评价防空武器系统效能的解析模型和模拟模型。分别用两种模型计算了CA—Ⅰ型双35自行高炮的效能。结果表明所提出的解析模型确为评价小高炮武器系统的效能提供了一个较好的工具。     

高炮电气随动系统神经智能故障诊断系统的设计与实现

根据高炮电气随动电控系统的组成及其电路的结构与特点,设计了高炮电气随动系统神经智能故障诊断系统的模型、系统硬件组成、系统软件结构和相关命令,并阐述了拟神经网络测试算法。     

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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