ATML技术及其相关标准综述

自动测试标记语言（ATML）是未来自动测试系统发展的趋势之一,它能在不同的自动测试系统间实现测试信息交互。本文主要介绍了ATML的定义、主要特点和发展历程,并对ATML的相关标准进行了总结。     

自动测试系统在军事装备测试中的应用研究

本文通过对自动测试系统的概念、发展过程及基本组成的分析,提出了自动测试系统在军事装备测试应用中的实例。实例中实现了硬件和软件的充分结合,并对方案设计进行了重点论述。实际应用证明自动测试系统在军事装备测试应用中优势明显,能取得明显的经济和军事效益。     

基于PXI总线的主被动雷达导引头自动测试系统设计

为实现对复杂的主被动雷达导引头的自动测试,以PXI总线作为测试平台,建立了先进的现代自动测试系统。分析了主被动雷达导引头的自动测试系统的基本原理。描述了测试系统组成和结构。给出了硬件和软件设计方法。模拟运行表明,该系统设计合理、性能稳定、技术参数满足主被动雷达导引头的测试需求。     

基于关键字驱动脚本的安全软件自动测试系统

提出并阐述了一种基于关键字驱动脚本的安全软件自动测试系统设计方法。使用关键字驱动脚本欲将大量有效测试案例形式化，建立测试案例专家知识库，并开发能够实现复杂测试案例自动生成、自动测试和自动结果比较的新一代安全软件自动测试系统。此系统可进一步提高铁路车站计算机联锁软件测试自动化水平和测试效率。     

频谱分析仪自动测试系统设计

设计频谱分析仪自动测试系统,该系统硬件部分主要由信号发生器、微波频率计、功率计、GPIB接口卡、计算机、打印机、电缆组成。主要完成频率、绝对幅度、频率响应、频带转换、刻度保真、中频增益、输入衰减器、显示刻度、RBW转换等测试。阐述了基于VB平台下的自动测试硬件和软件的应用,并通过实例讲述如何实现仪器控制和结果处理。频谱分析仪自动测试系统的实现,不仅改变手动校准费时费力的状况,更减少了人为所造成的校准误差,其优越性显著,同时对其他自动测试也具有参考价值。     

数字存贮示波器与IBM—PC机联机通讯

通过一块Gp-IB/PC标准接口板实现数字存贮示波器与IBM-PC微型机联机通讯,形成具有遥控功能的自动测试系统。利用这块GP-IB/PC接口板同样可以将其它具有标准并行接口功能的仪器与IBM-PC机联机形成自动测试系统。     

基于虚拟仪器的某型导弹飞控计算机综合测试系统设计

以某型导弹飞控计算机的自动测试和故障诊断为目标,运用虚拟仪器技术与专家系统故障诊断方法设计和实现了导弹飞控计算机综合测试设备.在介绍测试系统软硬件设计的基础上,重点叙述了将专家系统应用到自动测试和故障诊断中的实现方法.使用证明,该系统稳定可靠,工作效率高,具有较高的实用性和推广价值.     

虚拟仪器自动测试系统在军事领域的应用

概述虚拟仪器自动测试系统在军事领域的应用,通过对自动测试系统的发展研究和虚拟仪器技术的具体应用的介绍,说明构建虚拟仪器自动测试系统的方法及其必然性。     

基于PXI和GPIB总线雷达自动测试系统的设计

利用PXI模块仪器和GPIB仪器，组建了基于PXI和GPIB总线的某型雷达自动测试与故障诊断系统。给出了系统的硬件构成和软件设计方法，并讨论了将关系型数据库和专家知识应用到自动测试和故障诊断领域中去的实现方法。实际应用表明：该系统具有通用性强、操作方便、自动化程度高、故障定位准确等特点。     

监测环境温度与电阻测试及分选的自动测试系统

本文介绍一种用于环境温度自动监测和记录的无控者自动测试系统,以及一种用于电阻自动测试和分选的单一控制者自动测试系统的设计。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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