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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to