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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。
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Concretely, starting from a short sequence primal masks possessing Hermite interpolation properties, a necessary and sufficient conditions such that primal masks satisfies the preassigned order of sum rules are established, then a dual masks with short support, symmetry and any preassigned order of sum rules is constructed, it follows that two multiscaling functions are obtained and then multiwavelets and dual multiwavelets are derived. From which, a general design framework is obtained for constructing biorthogonal multiwavelets system with multiplicity 2r associated with Hermite interpolation functions.
具体的,从具有Hermite插值性质的短序列尺度符号出发,首先建立它具有指定阶和规则的充要条件,然后构造出短支撑、对称的具有指定阶和规则的对偶尺度符号,从而得到一对对偶的尺度函数,再构造出相应的双正交多小波。
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The method was used for the determination of proteins in human serum samples with good stability and high selectivity and the results obtained were in good agreement with those obtained by biuret spectrophotometric method
该方法的稳定性好、选择性高,直接用于人血清试样中总蛋白含量的测定,实验结果与常用的双缩脲法基本一致。
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The method has been applied to the determination of protein in human serum. The results obtained agreed quite well with those obtained by Biuret method.
该法灵敏度高,选择性好,用于实际血清样品总蛋白的测定,与双缩脲法相关性良好。
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The velocity distribution curve by numerical computation near the wall is the same as the Blasius theoretical curve, and it approved that the numerical simulative solution is correct. Obtained the time dependent interface and pressure distribution, but also obtained the time dependent velocity distribution on the cross section. It is a new way to study the gas-liquid two-phase flow.
直接数值模拟圆管中气液两相分层流动不仅能得到相界面、压力分布随时间的变化情况,而且能得到圆管中各截面上速度分布随时间的变化情况,这为研究管道中气液两相流动提供了一个新的研究方法。
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Based on the Boltzmann equation, governing equations are obtained by microscopic kinetic theory, in which the terms for mass and momentum transportations can be obtained directly by introducing some conclusions of bubble dynamics.
在推导过程中,结合空泡动力学中的研究成果,从微观角度考虑了泡径变化引起的质量和动量输运,直接推导出了相间输运源项。
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The information of faults is obtained by various processing of Bouguer gravity data in the Yellow sea and its adjaceat regions. The distribution of crust thickness in this region is also obtained.
根据黄海及其周边地区的布格重力资料,通过多种方法处理,得到有关断裂的信息并求取了研究区的地壳厚度分布。
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It appeared that the participant received the energy of rebirth by the boules sport. At the age of fifty, he obtained the opportunity to train as a coach in Frence, as well as be honored with qualified athlete by joining the chosen game. In addition, the participant understood the philosophy of boules sport could be applied to the philosophy of social behavior. Through the deep interview, the researcher obtained explains and aroused interests inside soul.
而研究参与者更透过滚球运动彷佛获得「重生」之活力,以近50岁之姿获选培训队教练赴法受训,因缘际会下参与选拔并荣膺国手资格,研究参与者透过滚球从中体悟滚球运动哲学观如何运用於为人处世哲学上,透过深度访谈,研究者反而得到启发并获得唤醒与解脱。
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By comparison with the results obtained by the other calculating methods, it is proved that the satisfactory results can be obtained by the proposed method.
通过与常见公式计算的结果进行比较,所建立的方法得到了比较满意的结果。
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The viscous torque can be calculated by a simple method and the frictional torque can be obtained by experiments. The torque dependent on the magnetic field is obtained by electromagnetic finite element analysis.
由动力粘度产生的力矩可以通过简单的方法进行计算,由摩擦产生的力矩可以通过实验测得,而由磁场产生的力矩则要通过电磁场的有限元分析得到。
- 推荐网络例句
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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
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By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.
通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。
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Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。