为促进铁氧体材料在这些领域中的应用,合成单分散、高饱和磁化度的超顺磁铁氧体纳米结构显得很有必要。
To promote the applications of ferrites in those areas, it is necessary to synthesize monodisperse superparamagnetic nanostructured ferrites particles with high saturation magnetization.
他们利用红外线激光束捕获超冷锂原子气团,将其冷却到仅比绝对零度高亿分之十五开尔文。当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强磁性。
When they gradually increased the repulsive forces between the atoms, they observed several features indicating that the gas had become ferromagnetic.
对于超对称,ATLAS和CMS将各自拥有足够数据将目前某些新发现的灵敏度提高双倍。
For supersymmetry, ATLAS and CMS will each have enough data to double today's sensitivity to certain new discoveries.
杜克的科学家们所说的“超冷”意指超级冷却到150微开尔文左右——这仅仅比绝对零度高几亿分之一开尔文。
When the Duke scientists say "ultra-cool" they mean uber-cooled to around 150 micro-Kelvin — that's only a few billionths of a degree Kelvin above absolute zero.
与此同时,冷却系统使环超流氦沿对撞机的加速环循环,使其温度保持在零下271.3摄氏度(零下456.34华氏度)。
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).
在LHC可以启动前,必须将其5万吨设备用超流体液氦冷却至绝对零度之上仅1.8 K的温度,这是迄今为止历史上最大的低温工程。
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.
实验证明,基于3维小波变换的3维SPIHT编码算法在对超光谱图像压缩时,表现出了优良的率失真性能。 并且算法复杂度适中,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.
在试验的基础上,研究了瓦斯爆炸过程中壁面粗糙度对火焰传播速度和超压的影响。
On the basis of experiment, the influence of wall roughness on fire transmission and overpressure in gas explosion was investigated.
超亮光的LED发光体代替了一半的电灯泡,可永久使用,能见度达一英里。
Exceed light LED shiner replace half of electric bulb, can be used forever and Visibility reach one mile.
超级钢的主要特征是高洁净度和超细晶粒组织,在不增加任何合金元素的情况下,其强度、韧性和使用寿命提高一倍。
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.
空间协同分析时,采用超元法(每个单元由多根杆组成)计算等效柱的侧移刚度矩阵,自由度成倍减少。
The method is applied to calculate lateral stiffness matrix in space cooperating analysis and the the degree of freedom can be greatly decreased.
耐用的活塞设计确保了超压能力以及卓越的精确度和可重复性。
The rugged piston design assures high over-pressure capability with exceptional accuracy and repeatability.
本论文较系统的研究了不同细度,特别是超磨细石灰石粉对混凝土性能的影响。
Systematic study on the effacements of deferent fineness, especially ultra-grinding limestone flour, in the performance of concrete is made.
干旱条件下,超红短枝的光合速率、蒸腾速率、气孔导度、对水分的利用效率和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.
结果表明:优化超细灰细度和选择适当的掺量不但可以有效利用工业废渣,而且还可以显著提高加气混凝土强度。
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.
分析了超光滑反射镜基片的表面波度对反射率的影响。
Effect of surface waviness of ultra-smooth reflector substrates on their reflectivity is discussed.
根据外场爆炸试验与理论分析研究,系统阐述了影响超压测试及威力评估准确度的关键因素。
According to explosion tests and theory analysis, some critical factors affecting accuracy of overpressure measurement and power evaluation are stated systematically.
结果不同印模材料采印及灌注的普通石膏模型,人造石和超硬石膏模型,其表面光滑度及硬度均有所差异。
Results There had difference on the surface smoothness and hardness of models made with different impression materials and different model materials.
在总结多种超冗余度机器人关节构型的优缺点基础上,提出了一种电机驱动的二自由度新型关节。
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.
对设定的性能指标如超调量和调整时间的违背量将作为GASA适应度函数中的惩罚项。
The violations of specifications such as percent overshoot and settling time are penalized in the fitness function of GASA.
复合材料的结晶度随超细重质碳酸钙填充量的增加而有所降低,但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.
本文提出了平面超自由度机器人形状控制的样条曲线方法。
A geometric spline method for shape control of planar manipulators with hyper degrees of freedom was presented.
应用基于样本之间的紧密度确定每个样本的模糊隶属度,通过训练确定阀值,去除影响得到最优分类超平面的噪声和野点。
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.
通过对南海表层沉积中钙质超微化石丰度和属种组合的分析,得出化石丰度与水深的关系。
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.
就极限承载能力而言,在超内水压力情况下,双层衬砌结构有较大的安全余度。
Under super inner hydraulic pressure, the liner still has large safety redundancy from the point view of limit loading capability.
本学位论文对空间超冗余度机器人的设计及空间运动轨迹规划开展研究,具有重要科学意义和应用价值。
This thesis focuses on design and motion planning of spatial hyper-redundant robot, which is meaningful to both academic and engineering application.
讨论了赋予局部有限拓扑的非空闭子集超空间的连通性,还引入了一个对讨论局部有限超拓扑有用的基数函数,称为离散度。
The connectedness of the non-empty closed subsets hyperspace with locally finite topology is discussed and a cardinal function called discrete degree is introduced.
分析了这些参数对线性单自由度体系的均方响应及首超概率的影响。
Finally, the effects of the parameters on the response and first excursion probability of a SDOF linear system are discussed.
针对基于预测有效度的组合预测模型提出了新的优性组合预测、预测方法优超和冗余度的概念;
New concepts are proposed for the combination forecasting effective measure models: superior combination forecasting, dominant forecasting method and redundant measure.
本研究全面测试了超细加工的四种不同细度的天然硅灰石矿物的细度与活性,并用逐步回归分析的方法建立了粉体细度与活性的数学模型。
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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