• 促进铁氧体材料这些领域中的应用,合成单分散、高饱和磁化度的超磁铁氧体纳米结构显得必要

    To promote the applications of ferrites in those areas, it is necessary to synthesize monodisperse superparamagnetic nanostructured ferrites particles with high saturation magnetization.

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  • 他们利用红外线激光束捕获冷锂原子气团,将其冷却到仅比绝对零高亿分之十五开尔文。逐渐增加原子间斥力时,研究人员观察到的几个现象表明气体已经变得具有磁性

    When they gradually increased the repulsive forces between the atoms, they observed several features indicating that the gas had become ferromagnetic.

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  • 对于对称ATLASCMS各自拥有足够数据目前某些发现灵敏提高双倍

    For supersymmetry, ATLAS and CMS will each have enough data to double today's sensitivity to certain new discoveries.

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  • 杜克科学家们所说的“”意级冷却150微开尔文左右——仅仅绝对几亿分之一开尔文

    When the Duke scientists say "ultra-cool" they mean uber-cooled to around 150 micro-Kelvinthat's only a few billionths of a degree Kelvin above absolute zero.

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  • 与此同时冷却系统使流氦沿对撞机加速环循环,使其温保持零下271.3摄氏(零下456.34华)。

    Meanwhile, the cooling system that circulates superfluid helium around the LHC's accelerator ring keeps the machine at minus 271.3 degrees Celsius (minus 456.34 degrees Fahrenheit).

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  • LHC可以启动必须其5万设备流体液氦冷却绝对零之上1.8 K的温,这是迄今为止历史最大低温工程

    Before the LHC can start, 50,000 tonnes of equipment have to be cooled to just 1.8? Kelvin above absolute zero with superfluid liquid helium - by far the largest cryogenic project in history.

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  • 实验证明基于3小波变换的3维SPIHT编码算法光谱图像压缩时,表现出优良的率失真性能。 并且算法复杂适中,具有嵌入式特性。

    The test results show that the 3D SPIHT algorithm based on 3D DWT for hyperspectral images compression is very efficient, the algorithm is embedded and has modest complexity.

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  • 试验基础上研究瓦斯爆炸过程壁面粗糙火焰传播速影响

    On the basis of experiment, the influence of wall roughness on fire transmission and overpressure in gas explosion was investigated.

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  • 亮光LED发光体代替了一半电灯泡永久使用能见英里

    Exceed light LED shiner replace half of electric bulb, can be used forever and Visibility reach one mile.

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  • 的主要特征洁净晶粒组织,在增加任何合金元素情况下,韧性和使用寿命提高一

    Ultra steel is characterized by its higher cleanness and ultra-fine grain, thus it has higher strength, toughness and longer life even without addition of more alloying elements.

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  • 空间协同分析时,采用(每个单元由多根杆组成)计算等效柱矩阵自由成倍减少

    The method is applied to calculate lateral stiffness matrix in space cooperating analysis and the the degree of freedom can be greatly decreased.

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  • 耐用的活塞设计确保能力以及卓越的精确可重复性

    The rugged piston design assures high over-pressure capability with exceptional accuracy and repeatability.

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  • 本论文较系统研究不同特别是磨细石灰石粉混凝土性能的影响。

    Systematic study on the effacements of deferent fineness, especially ultra-grinding limestone flour, in the performance of concrete is made.

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  • 干旱条件短枝的光合速率蒸腾速率、气孔、对水分利用效率羧化效率一直高于对照

    Under drought, photosynthetic rate, transpiration rate, stomata conduct, water use efficiency and carboxylic efficiency of the 'Super red Spur' was higher than control's.

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  • 结果表明:优化选择适当不但可以有效利用工业废渣而且可以显著提高加混凝土

    It can be shown from the result that not only waste residue can be utilized efficiently but also increase the intensity of cellular concrete by using proper grade and quantity of superfine ash.

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  • 分析了光滑反射镜基片表面反射率影响

    Effect of surface waviness of ultra-smooth reflector substrates on their reflectivity is discussed.

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  • 根据外场爆炸试验理论分析研究系统阐述了影响测试威力评估准确关键因素

    According to explosion tests and theory analysis, some critical factors affecting accuracy of overpressure measurement and power evaluation are stated systematically.

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  • 结果不同材料采印灌注普通石膏模型人造石膏模型,其表面光滑及硬均有所差异。

    Results There had difference on the surface smoothness and hardness of models made with different impression materials and different model materials.

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  • 总结多种冗余机器人关节构型优缺点基础上,提出了电机驱动自由新型关节。

    By analyzing the merits and shortcomings of a number of former joint configurations, a new kind of motor driven joint with two degree of freedom is presented.

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  • 设定性能指标调量调整时间违背量将作为GASA适应函数中的惩罚项。

    The violations of specifications such as percent overshoot and settling time are penalized in the fitness function of GASA.

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  • 复合材料结晶细重质碳酸钙填充量增加而有所降低复合材料的熔点变化不大。

    The crystallinity of the composite decreased with the increase of the ultrafine ground calcium carbonate, the melting point of the composite had little change.

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  • 本文提出了平面自由机器人形状控制条曲线方法

    A geometric spline method for shape control of planar manipulators with hyper degrees of freedom was presented.

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  • 应用基于样本之间紧密确定每个样本模糊隶属通过训练确定阀值去除影响得到最优分类平面的噪声野点

    The fuzzy membership of each sample is defined by affinity among samples, and by the training determine a threshold, noises and outliers are removed, which influence optimal separating hyperplane.

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  • 通过南海表层沉积钙质微化石属种组合分析,得出化石丰水深关系

    Based on the analyses of abundance and assemblages of calcareous nannoplankton of the surface sediments from the South China Sea, the correlation between the abundance and water depth is found.

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  • 就极限承载能力而言,在内水压力情况双层衬砌结构较大安全

    Under super inner hydraulic pressure, the liner still has large safety redundancy from the point view of limit loading capability.

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  • 学位论文空间机器人设计空间运动轨迹规划开展研究,具有重要科学意义应用价值

    This thesis focuses on design and motion planning of spatial hyper-redundant robot, which is meaningful to both academic and engineering application.

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  • 讨论了赋予局部有限拓扑子集空间的连通性,还引入了一个对讨论局部有限拓扑有用的基数函数称为离散

    The connectedness of the non-empty closed subsets hyperspace with locally finite topology is discussed and a cardinal function called discrete degree is introduced.

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  • 分析这些参数线性自由体系均方响应概率影响

    Finally, the effects of the parameters on the response and first excursion probability of a SDOF linear system are discussed.

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  • 针对基于预测有效组合预测模型提出新的性组合预测、预测方法优冗余度的概念

    New concepts are proposed for the combination forecasting effective measure models: superior combination forecasting, dominant forecasting method and redundant measure.

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  • 研究全面测试加工四种不同度的天然灰石矿物的细活性,并用逐步回归分析的方法建立了粉体细活性的数学模型。

    The paper systematically studies the relationship of fineness and activity of four different fine natural Wollastonites, and sets up the mathematic model with step by step regression design.

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