gamma radiation
- gamma radiation的基本解释
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[医] γ射线, γ放射, γ辐射
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- gamma radiations
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According to the studied results at present, the studied objects are mainly thin plate and beam about sound radiation mode, a method computed sound radiation mode of complex structure is presented in this dissertation, according to the results of the previous two chapter, a theoretical method to solve acoustical radiation mode and acoustical radiation efficiency of complex structure by boundary element method and acoustical radiation theory is posed, the acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regard to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results. According to results of the form three chapter, the structure sound radiation sensitivity is studied in detail, the sound radiation power of structure can be expressed as positive Hermitian quadratic form, the sound radiation sensitivity can be expressed as two parts by partial differential with respect to design variable, which are sensitivity of boundary velocity and impedance matrix, combined with the theory of FEM and BEM, the structure sound radiation can be translated to the analysis of structure dynamic sensitivity and impedance matrix sensitivity. The theory posted in this dissertation is tested by the FEM software ANSYS and the software AAS programmed by author.
在前几章的基础上,通过结构声辐射的模态理论对结构的声辐射的机理进行了深入地探讨,针对目前声辐射模态的研究对象主要是简单的板和梁类结构,提出了一种计算复杂结构声辐射模态的方法,利用前两章研究所得的结论,将边界元方法与广义特征值的理论结合起来研究了复杂结构的声辐射模态与声辐射效率,先将结构的声辐射功率表示为一个正定的厄米特二(来源:ABb7C论文0909网www.abclunwen.com)次型,运用广义特征值分解求解了复杂结构的声辐射模态,然后利用声辐射模态关于阻抗矩阵与均方速度耦合矩阵的正交性,求解了复杂结构的声辐射效率,最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。
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A process for preparing the recombinant chicken gamma-interferon (rCHIFN-gamma) with high activirus activity includes such steps as cloning ChIFN-gamma gene from eukaryotic plasmid to transfer carrier by dual enzyme servenings to obtain recombinant transfer plasmid pFASTBACI-ChIFN-gamma, taking DH10Bac competent cell, adding IngpFASTBAC1-ChIFN-gamma, transposition, diluting to culture object by SOD culture medium, coating on Luria plate, culturing, choosing white clony, purifying, naming positive plasmid as Bacmid-ChIFN-gamma, extracting its DNA, and transfecting Sf9 cells.
高抗病毒活性重组鸡γ-干扰素的制取方法及用途,涉及一种广谱高效抗病毒基因工程产品的制取方法。将ChIFN-γ基因从真核质粒中经双酶切后克隆到转移载体中,获得重组转移质粒pFASTBAC1-ChIFN-γ;取DH10Bac感受态细胞,加入1ng pFASTBAC1-ChIFN-γ,转座后,用SOC培养基稀释培养物,涂布Luria平板,培养后,挑取白色菌落,Luria平板进行纯化,阳性质粒命名为Bacmid-ChIFN-γ,提取阳性质粒DNA;取上述重组DNA质粒转染Sf9细胞,制得高抗病毒活性重组鸡γ-干扰素。
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In recent years, although multichannels (more than 256) gamma ray spectrometer has been made overseas, field gamma ray spectrometric survey is only used to determine contents of uranium, thorium and potassium, by reason of applying gamma ray spectrometry later than developing instruments, can't obtaining full spectrum because of the problem of stabilizing gamma ray spectrometric peaks, and it is impercipient for field gamma ray spectrometry.
作者分析了国内外野外地面伽玛射线全谱测量存在的问题主要是:(1)目前国内外野外地面伽玛能谱测量中主要使用四道能谱仪,仅利用能量大于1000keV的伽玛射线,通过数个谱段的读数结果,计算铀、钍、钾的含量,而没有利用伽玛射线全谱,使80%以上的伽玛射线能谱信息摒弃未用。
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gamma radiation:辐射
诺顿饰)持续失望地寻找能治愈他那被γ辐射(gamma radiation)毒害的体内细胞之疗法,以及解除那储藏体内、不受束缚的另一个自己──伟人"The Hulk". 活在孤单及没有爱人的阴霾之下,布斯在治疗进程中还需过五关斩六将,
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gamma radiation:射线
核通公司(Nucletron)在上海举办放疗新产品发布会高剂量率后装治疗系统 (microSelectron HDR System) 是使用高能量之伽瑪射线 (gamma radiation) 进行体内照射以达到治疗癌症之目的,此治疗方式在医学上称为近距离放射治疗 (Brachytherapy Treatment).
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gamma radiation:伽玛辐射
galvanometer 电流计,检流计 | gamma radiation 伽玛辐射 | gamma ray 伽玛射线
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gamma radiation:伽马辐射
伽马函数 gamma function | 伽马辐射 gamma radiation | 彩色范围(显示器) gamut
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gamma radiation detector:伽马辐射探测器
gamma radiating level 伽马辐射能级 | gamma radiation detector 伽马辐射探测器 | gamma radiation 伽马辐射
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