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The test methods based on data acquisition system parameters such as direct voltage, alternating voltage and time interval of were introduced.

这些数据处理方法已成功地应用于某型导弹的自动测试系统,获得了较高的测试精度和良好的应用效果。

This paper summarizes the background and advantage of data mining, as well as the significance of data mining in the scientific research management of colleges and universities firstly, and then discusses the theory of data mining, association rules and the ideas of main algorithm, analyzes the classic Apriori algorithm and its existing problems as well as the basic solutions. After that, this paper proposes Multi-Dimensional Apriori algorithm which is designed specially for the mining of this paper; Then describes the structure of scientific research data mining system, defines subject-oriented mining tasks, including: mining the data about research projects, mining the data about papers, mining the data about academic writings. The association mining process is implemented by programing, a number of stimulating association rules are found, interpreted and analyzed.

本文首先综述了数据挖掘的研究背景、意义以及数据挖掘技术在高校科研管理中的应用现状和意义,然后在对数据挖掘相关理论、关联规则思想及主要算法进行讨论,分析经典Apriori算法及其存在的问题、基本解决方案后,提出了适合本文挖掘的多维Apriori算法的设计方案,并应用于本文挖掘中;接着论文介绍了科研数据的关联挖掘系统的结构,确定了面向主题的挖掘任务,包括:科研项目信息的挖掘、论文信息的挖掘、学术专著信息的挖掘等;设计了关联规则的实施过程,并通过程序编码得以实现,获得了多条有启发性的关联规则,并对其进行了解释与分析。

The works in the project just done can be summarized as five respects.(1) A device was designed to fabricate the asymmetrical resonant cavities by a pendant drop. A series ARCs with variable parameters provides a valuable experimental method for investigating the characteristics of ARCs.(2) The relationship between the number of active modes and the shape parameters in an ARC was investigated. The experimental lasing threshold was compared with theoretical result, the good agreement between two shown that it was the decrease of the number of active modes in an ARC that decreased lasing threshold.(3) Dye lasing gain was used to enhance the signals of stimulated Raman scattering of the weak gain Raman modes in a circular cavity made by a pendant drop, the instantaneous SRS spectra of weak gain Raman modes in ethanol was obtained by this new method.(4) The SRS signals of minority compound in a binary chemical complex was obtained by using dye lasing gain method. The detection concentration of minority compound was reduced to an order compared with normal SRS method.(5) A cylindrical circular cavity was formed by a liquid jet, which was used to reduce the pump intensity required for laser induced plasma spectroscopy. The limit of detection of trace element in aqueous sample was greatly decreased by this new method.

我们设计并成功制作了使悬垂液滴连续变形的装置,用此装置可以方便地改变非圆对称谐振腔的几何参数,为ARCs的研究提供了一种有效的实验方法;研究了ARCs中活性模式数和变形参数间的变化规律,激光阈值的数值计算结果和激光辐射的实验结果作了比较,二者吻合的曲线说明ARCs中活性模式数量的减少是受激辐射放大阈值降低的原因;在由单元化合物构成的微型圆对称谐振腔中,首次尝试用"激光增益"增强弱增益拉曼模式的受激拉曼散射信号,获得了乙醇分子中弱增益拉曼模式的瞬态SRS光谱;在由二元混合物构成的微型圆对称谐振腔中,用染料的激光增益增强了少量化合物的SRS信号,把少量化合物的SRS信号探测浓度降低了近一个数量级,在SRS应用于瞬态过程的组份分析方面做了卓有成效的探索;用石英毛细管形成的稳定液拄构成拄形谐振腔,降低了激光诱导等离子体光谱需要的激励能量,有效地降低了水相样品的痕量元素分析极限,为LIPS应用于微量元素的化学分析开拓了一条新的技术路线。

The results of interior ballistic theoretical simulationindicates that the single PSS charge application need propellants be provided with upperburning rate, adopting PSS and traditional model frame propellants commix charge is apractical applied technique approach.. By optimizing the PSS model frame parameter, wecan obtain "flat roof" domino offect with better even peak value "double peak" p-tcurve. Comparing with current 19 hole propellants charge with the best increasing burningsurface characteristic, the muzzle velocity of projectile can be enhanced about 55m/s, andthe instruct pressure efficiency can be enhanced about 5.7%.

内弹道理论模拟结果表明,PSS发射药单一装药的应用,需要发射药具有较高的燃烧速度,采用PSS发射药与传统药型的混合装药,是目前PSS发射药实际应用的技术途径,通过药型参数的优化可获得"平台"效应更好的等峰值的"双峰型"P~t曲线,与现有增面性最好的19孔发射药装药相比,弹丸初速可提高55m/s左右,示压效率高5.7%左右。

This approach not only inherits the advantages of absolute density based algorithms which can discover arbitrary shape clusters and are insensitive to noises , but also efficiently solves the following common problems: clustering results are very sensitive to the user-deflned parameters, reasonable parameters are hard to be determined, and high density clusters are contained fully in coterminous low density clusters. With this approach, incremental clustering can also be supported effectively by defining the affected sets and seed sets of the updating objects in this approach.

聚类算法的有效性问题主要表现在三个方面:其一,聚类算法大多要求用户输入一定的参数,例如希望产生的簇的数目,而这些参数通常难以确定,特别是针对高维空间中稀疏分布的实际应用数据集,用户几乎无法给出合适的算法参数,因此非专业用户需要与数据分析专家密切配合才能保证获得理想的聚类结果,导致算法的使用极为不便;其二,聚类结果对于输入的参数值过于敏感J,往往参数值的一些轻微变化却产生聚类结果的很大差异;其三,对于高维的实际应用数据集,其数据分布往往是稀疏的、杂乱的,很难为算法选择全局的参数进行准确的聚类分析,使得聚类的质量难以保证。

By using modified conditions for dominant function,we establish extended dominated convergence theorem and obtain an application to integral operators with weak singularity , which simplifies the proof of the classical conclusion.

本文研究了一类推广的控制收敛定理及其应用,利用对控制函数满足条件的修改,建立了推广的控制收敛定理,获得其在弱奇异性积分算子中的应用,简化了经典结论的证明。

By the technology, it has gotten the good result in test of model data and in practice of gassy detection on the Xujiahe Formation in the West Sichuan Depression.

将该技术应用到气水裂缝理论模型的试算和川西坳陷深层须家河组气藏的含气性识别中,均获得了良好的应用效果。

Prediction the protein subnuclear locations; c we have for the first time extended the prediction scope to cover 22 subcellular locations, which greatly improves the practical value of the computational models.

本文首次在国际上提出并探讨了a 蛋白在细胞中多个位置出现的预测模型;b 蛋白在细胞核中出现的位置的预测模型,即&亚亚细胞位置预测模型&,获得国际学术界的认可;c 本文首次将亚细胞定位的预测研究推广到覆盖22个亚细胞位置,极大地提高了预测模型的实用价值,并提出了融合蛋白序列高层基因本体特征及序列自身氨基酸特征的蛋白亚细胞位置预测方法,提出了面向不同物种的亚细胞定位的预测新思路;结果表明新算法方法在严格的数据集上获得了比传统算法方法高出35%以上的预测精度,所开发的工具被广泛应用于生物实验中。

Only oneA/D converter is needed to complete complex quadrature translation and digital downconversion, get in-phase component and quadrature component in digital field, and also,after intra-pulse compression is done, the signal-to-noise ratio is raised, and inter-pulsecompression is done in digital field, and finally, high range resolution profile is got.Two-step stretch processing method for MMW high-resolution RADAR is presented.

计算并优化了毫米波雷达中频信号带通采样的最佳采样频率,应用现有的集成电路技术实现对中频信号的直接采样、用一个A/D转换器在数字域完成复数正交变换,在数字域完成下变频、获得同相信号和正交相信号、完成对子脉冲的脉内压缩、完成对脉内压缩信号的第二次脉间压缩,从而获得高分辨一维距离像。

Single motor hydraulic explosion proof forklift truck is a key product which designed and manufactured according to the developing trend of international forklift industry and the continual safety consciousness of China.

单电机全液压防爆电动叉车是公司根据目前国内安全生产意识的不断提高,国际叉车业的发展趋势而开发的又一拳头产品,获得多项发明专利,实用新型专利,关键技术达到国内领先,国际先进水平,并在石油、化工、国防等各个领域获得了成功应用。

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Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。

In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).

在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。