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普通话水平测试是国家推广汉语口语及规范口头、书面语言方法之一.测试人员如何掌握评分标准,如何处理普通话水平测试大纲中规定发音与大众读音之间的关系,以及大众读音与现代汉语字典中规定发音之间的关系等问题,直接影响着被测试人的成绩,同时部分字读音的规范化把握也值得分析. 相似文献
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信息冲突与不确定条件下的装备质量状态评估 总被引:1,自引:0,他引:1
针对质量状态评估中所需测试信息的冲突性和不确定性,及其对装备质量状态评估准确性和完备性所造成的不良影响,提出一种基于改进证据推理(evidential reasoning,ER)方法的质量状态评估方法。在对质量状态进行等级划分和测试数据预处理之后,该方法通过将各测试参数之间的"冲突"和"不确定"按比例分配到各等级,使证据之间的冲突有效降低,评估的总体不确定性减少。将其应用到导弹装备的质量状态评估中,运算结果和方法对比表明改进后的方法能有效融合冲突信息、降低评估的不确定性,且方法原理简单,理论基础充分,方便程序实现。 相似文献
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随着航空装备的不断更新,带来了航空维修内容、流程和模式的深刻变化。航空机务人员的业务能力高低成为影响航空装备安全的重要因素,为此,从静态、动态两个方面研究了航空机务人员能力评价问题。首先给出了航空机务人员能力指标体系,运用模糊综合评价法进行了影响因素权重计算和决策分析,其次利用离散Hopfield(DHNN)网络联想记忆能力,将5种机务人员能力等级指标的样本存储到DHNN的5种模式,最后运用DHNN在存储的典型等级模式中寻找与给定测试样本最相似的模式,从而确定测试样本所归属的能力指标等级。 相似文献
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测试能力成熟度模型(TMM)是衡量测试过程成熟度的模型。文中对TMM与CMM进行了比较,给出了TMM评估模型的符号表示和测试能力等级评估算法,并以TMM 2级为例提供了测试平台的建设方案以及改进方案. 相似文献
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论汉语语音在英语语音教学中的作用 总被引:1,自引:0,他引:1
李晓霞 《装甲兵工程学院学报》2000,14(4):34-38
以往英语语音教学研究中,一般只强调母语语音在英语语音学习中的干扰作用.通过 对比英语音素与汉语音素的相同与不同之处,对2种语言的发音进行对比研究.在探讨汉语语音干扰作用的同时,着重研究如何在英语语音教学中运用汉语语音规则,从而发掘汉语语音在英语语音教学中的辅助作用. 相似文献
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刘新建 《兵团教育学院学报》2010,20(5):69-72
本文分析了英汉拟声词的语音关系和英语拟声词的语音修辞功能。在保留英语拟声词语音修辞效果前提下,分别从英汉拟声词的语音关系和英汉拟声词的声音发出者所承载的不同文化意象等角度探讨了相应的翻译方法。 相似文献
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传统通信系统安全风险评估方法获取的判断矩阵是个体专家的意见,无法处理不确定问题,得到的评估结果较为主观、准确度差,为了解决该问题,提出了基于证据理论的通信系统安全风险评价模型。采用证据理论融合规则调整通信设备和光缆一级指标的判断矩阵,综合多位专家的意见,获取设备和光缆各指标的状态评分和指标权重,构建通信系统风险评估模型,最后通过仿真实验测试其性能,结果表明,该模型可以准确评估通信系统的风险等级。 相似文献
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Naomi Kok 《African Security Review》2013,22(3):175-180
The eastern Democratic Republic of Congo (DRC) has been characterised by chaos and insecurity for a number of years, but the rise of the M23 rebellion in 2012 once again highlighted just how dire the humanitarian and security situation is. For most of 2012, the crisis was addressed through negotiations between M23 and Kinshasa, mediated by the International Conference on the Great Lakes Region (ICGLR). However, 2013 marked the signing of the Peace, Security and Cooperation Framework Agreement (PSC Framework), and the United Nations Security Council's adoption of Resolution 2098, which contains the mandate of the long-awaited Intervention Brigade (IB). The PSC Framework calls on Kinshasa to implement substantial political reforms while also urging the neighbours of the DRC to stop interfering in its internal affairs. The IB is mandated to carry out targeted operations against the so-called ‘negative forces’ that operate in the eastern DRC. For now, hope of resolving this ongoing crisis hinges on the continuing ICGLR negotiations, the implementation of the PSC Framework and the success of the IB. However, there are critical questions about all of these processes that need to be answered and understood, as the expectations for these processes – especially in the case of the IB – are extremely high. Will the ICGLR manage to negotiate a peace agreement and will the IB succeed, or will they go down in history as yet another failure to save the eastern DRC? 相似文献
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Christopher Kinsey 《Small Wars & Insurgencies》2013,24(4):584-614
This article sets out to investigate the impact of Private Security Companies (PSCs)1 on civil wars. In doing so, it has taken an historical line, outlining the way the industry has developed from when it first emerged on the international stage in the late 1960s, to the present. Importantly, the article is able to identify three broad strands of involvement in civil wars that include substituting for state military forces, propping up weak governments, and supplementing state militaries. Moreover, in each of these situations, the involvement of PSCs raises both moral and legal questions, as well as challenges for government. This is especially so in light of their activities in Iraq and Afghanistan and the likelihood that governments will increasingly turn to them for niche capabilities. 相似文献
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《防务技术》2020,16(1):18-28
Under the background of vigorously developing facilities of island/reef in the world, the economic value and strategic significance of the island/reef have become increasingly important. Unfortunately, they may easily become the attacking target of missiles in the war time. Therefore, aiming at the damage quantification of the targets in the island/reef under the missile attacking, a macroscopic damage assessment model for the target area is proposed in this paper. The model focuses on the construction of the assessment model framework. Firstly, the analytic hierarchy process and the grey relational analysis are applied to measure the importance of each target in the region through four indicators of the target hazard, striking urgency, damage advantage and mission relevance, respectively. Secondly, based on the damage mechanism of shock wave and fragments to target, the corresponding damage model is established, and the damage grade of each target in the evaluated area is obtained according to the damage criteria and grading standard. Finally, the model obtains the overall damage grade of the target area by employing the fuzzy comprehensive evaluation method, with synthesizing the importance and the damage grade of each target. Through the verification of an example, it demonstrates the certain feasibility of the model and provides a certain basis and reference for the subsequent research. 相似文献
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对船用60kg级铸钢进行多项使用性能试验,试验结果表明该铸钢常规力学性能和低温韧性全部合格,实物铸件解剖力学性能良好,与试块的解剖性能基本相当,具有良好的焊接性能,焊接接头的冲击和硬度试验达到技术条件规定的要求. 相似文献
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《防务技术》2015,11(3)
Naval grade high strength low alloy(HSLA) steels can be easily welded by all types of fusion welding processes. However, fusion welding of these steels leads to the problems such as cold cracking, residual stress, distortion and fatigue damage. These problems can be eliminated by solid state welding process such as friction stir welding(FSW). In this investigation, a comparative evaluation of mechanical(tensile, impact,hardness) properties and microstructural features of shielded metal arc(SMA), gas metal arc(GMA) and friction stir welded(FSW) naval grade HSLA steel joints was carried out. It was found that the use of FSW process eliminated the problems related to fusion welding processes and also resulted in the superior mechanical properties compared to GMA and SMA welded joints. 相似文献