测光法
- 与 测光法 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The polysaccharide and glucan contents were analyzed by phenol-sulfuric acid method and aniline blue dye fluorescence assay, respectively.
首先将液态灵芝发酵液和商业灵芝粉以酚硫酸法测多醣产量,再以萤光分析方法进行葡聚醣定量。
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In the roof reconstruction, a TIN-based region growing is applied to extract the roof planes. The coplanarity and adjacency between triangles are considered for TIN-based region growing. Then, a least squares regression is selected to determine the coplanarity function of planar segment.
在建物屋顶面重建中,使用建物轮廓线内部的光达点云进行屋顶面之共面分析,研究中使用三角网区域成长法侦测共平面之屋顶面,以相邻三角网法向量夹角做为共平面门槛,并以最小二乘法回归出屋顶面之平面,产生房屋模型。
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The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when 210 generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air.
从热传导方程和雪崩电离机制出发,假设当电子增值2~(10)倍时,考虑了温度对材料热力学和光学参数的影响时,得到了气化和等离子体点燃的时间,利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致;提出了利用刀刃法测量激光光斑面积的方法,并通过实验进行了验证和误差分析;利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断,激光器均为调Q—YAG激光器(波长1064nm,532nm,355nm,脉宽10ns),靶材分别为Al、Fe和Cu,两种测试方法得到的等离子体点燃阈值基本一致;本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响,均得到了等离子体点燃阈值随着波长的增加而减小的结论;对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究,得到了金属在水中的等离子体点燃阈值比空气中的大,且水中产生的冲击波的压强是空气中的5倍左右的结论。
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As well known, modern laser diffraction has widely used in engineering measurement but it mostly limited in Fraunhofer diffraction because there is simple function between the size to be measured and space of diffraction dark spots and there are no analytic algorithm for Fresnel diffraction.
现代激光技术提供了极为良好的相干光源,该光源在工程测量,特别是衍射测量中得到广泛应用。但在实际应用中,往往局限于夫琅和费衍射,因为夫琅和费衍射法暗斑间距与被测尺寸之间具有很简单的函数关系S-n/d,而菲涅尔衍射光强分布非常复杂,缺乏解析的计算方法。
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Speckle patterns are first preprocessed with homomorphic filter and image threshold....
本文研究结果可为进一步研究激光散斑法测量纳米流体中纳米粒子的运动,以及开发新的动态纳米粒子光测方法提供理论和实验依据。
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Preiss angle (P .0l ), for the stick pestle can complement the strength for correcting the broadenth of the cross radius of the calcaneus, and the plaster splints are strong enough to fix the ankle firmly at the metatarsus posture.
第二部分为生物力学的实验研究,采用电测法与三维光弹性实验,研究跟骨在中立位及不同角度的跖屈位时应力分布的规律,分析跟骨在不同体位时应力和位移情况,探讨跟骨骨折的发病规律及合理的治疗方法。
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The velocity and planarity of the shock wave were measured. The radiation temperature measured by soft X-ray spectrometer was consistent with the result by optical streak camera.
通过冲击波法测得的腔内辐射温度与软X光能谱仪的测量结果一致,验证了冲击波速度测量的可信度。
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The pathological changes of thoracic aorta tunica were observed with light microscope.
用放免法测IL-6、INS,计算IAI、IRI,光镜下观察购主动脉内膜病变的数目和程度。
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Wkat is called the coupled systems means that two deformational bodies,forwhich figures,sizes,loads and boundary conditions are all the same and they are all in actual states but they are made of different ma...
光测弹性理论中的原型体和模型体实质上是耦联系统,因而上述原理就成为确定柏松比v对冻结应力法精度影响的理论基础。
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A novel method of measuring plus lens's focus is given, which is based on LCD, CCD, and digital image processing It is also a discussion on photoelectric method of automatically measuring parameters of an optic system In this method, a LCD is used as a reticle of the collimator, while the image on the accepting side is transformed into digital image and is sent into a computer The focus can finally be calculated out through digital image processing and analysis The method of measurement is introduce...
讨论了一种基于LCD、CCD和数字图像处理的正透镜焦距测量方法,是光电法自动化测量光学系统多个参数的一种有益的探讨。用液晶屏显示分划图形取代平行光管的分划板,用CCD在接收方采集数字图像并送入计算机,通过图像处理和分析得出被测透镜的焦距。运用叠加的方法提高图像的信噪比;结合重心法和平行线拟合方法求取平行线对的间距;应用高精度焦距标准透镜标定数字图像和实际像之间的比例关系。详细介绍了测量和图像处理的方法,进行了公式推导和误差分析,并给出了实验结果
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力