The resonance absorption of a gamma ray by a nucleus identical to the nucleus that emitted the gamma ray. 一种共振现象,核子吸收伽马射线,与该核子放出的是一样的。
The effective absorption layer of a single ray can be used as such physical scale length to obtain a formula for the wave power deposit. 单一波束的有效吸收层的厚度可以合理地作为这一物理尺度,从而获得统一的功率沉积公式。
Based on Lambert Law, the regulation on infrared transmission properties of plain cloth and its moisture content is studied by using infrared heat effect and selective absorption function of moisture to infrared ray. 以朗伯(Lambert)定律为基础,利用红外线的热效应和水分对红外线的选择性吸收作用,研究了平纹织物含水量对红外线透射性能的影响。
Color silk fabric is of good air permeability and wet absorption as well as good ultraviolet ray absorption and anti-bacterial property but poor anti-crease, weak strength and easy yellowed. 彩色蚕丝织物具有良好的透气性和吸放湿性,良好的紫外线吸收能力和抗菌能力,但抗皱能力差,强力较低,伸长率较大,容易黄变。
The following efficacy of bamboo-charcoal: high absorption, dehumidify, deodorization, negative ion and far-infrared ray were used in various pillows to improve our living quality. 利用竹炭所具有的高吸附性、除湿、除臭及负离子、远红外线等功效,应用到各种枕头中,来提高人们的生活质量。
The results show that the absorption of metals to X ray is related to atomic number, thickness and X ray energy. 结果表明,X-射线的吸收与材料的原子序数、厚度及X-射线的能量有关。
Experimental investigations of energy absorption and X-ray conversion in hohlraum targets 空腔靶能量吸收、转换特性实验研究
X ray Absorption Near Edge Structure ( XANES) and Extended X ray Absorption Fine Structure ( EXAFS) were used to characterize the micro structures of Co species in Co/ γ Al 2O 3 catalysts prepared from different cobalt salts and calcined at different temperatures. 采用X-射线吸收近边结构(XANES)和扩展X-射线吸收精细结构(EXAFS)技术,对用不同原料盐和不同焙烧温度制得的Co/γ-Al2O3催化剂中钴的微观结构进行了详细的表征。
The extruded cron starch samples were analysed by Sephadex G-200 gel filtration chromatography, Iodine affinity value, Iodine absorption spectrum, X-ray diffraction. 利用SephadexG-200凝胶过滤层折,碘吸附值,碘络合物吸收光谱,X-射线衍射光谱等方法对挤压淀粉进行了研究。
An analytical formula of self absorption for γ ray in the direction perpendicular to the axis of a cylinder has been obtained. 通过对吸收的几何分析,获得了在与圆柱轴垂直方向上的自吸收修正因子的分析表达式。
The structural and optical properties of the DLC films are analyzed by utilizing optical transmission, infrared absorption and small angle X ray diffraction spectroscopy. 用光透射率、红外吸收谱和小角度X射线衍射谱分析了DLC膜的结构和光学性质。
The consideration of coincidence summing correction related to cascade γ radiation; self absorption correction of γ-ray in sample; calculation method used in determining net areas of peaks for some nuclides identified in spectrum as well as error analysis and estimation. 描述了谱仪刻度、有关γ符合相加和样品自吸收校正的考虑、一些核素特征峰面积的计算方法和注意事项以及误差分析与估算等。
The AlN film has an excellent preferred ( 100) orientation structure, intense absorption in the far ultraviolet ray range of 200& 300 nm, and high transmission in the wavelength range of 300-1 000 nm. 结果表明:利用磁控溅射方法可以获得(100)择优取向AlN薄膜;AlN薄膜在200~300nm远紫外光范围内具有强烈的吸收,在300~1000nm波长范围内具有良好的透过率。
By using high resolution transmission electron microscopy, infrared absorption, Raman scattering and X ray photoelectron spectroscopy various structures of thin films are analyzed. 用高分辩透射电子显微镜、傅里叶红外吸收谱、Raman散射和X射线光电子谱等分析手段对薄膜的结构进行了分析。
Fluids with different ionic concentration have different absorption of γ-ray. 不同矿化度的流体,其离子浓度不同,因而对射线吸收的程度不一样。
A method of energy calibration for lead glass total absorption Cerenkov counter by means of cosmic ray muon experiment is presented in this paper. 本文提出用宇宙线μ子实验对铅玻璃全吸收契伦柯夫计数器进行能量刻度的方法。
Because the benzene ring in PET molecular structure has highly absorption for ultraviolet ray, PET is the most best anti-UV fiber in present synthetic fibers. 因为在涤纶分子结构中的苯环具有吸收紫外线的作用,所以在众多合成纤维中涤纶的抗紫外性能最好,但是要使紫外线屏蔽率达到90%以上就必须添加紫外线屏蔽剂。
Determination of Linear Absorption Coefficient of~ ( 60) Co γ-ray in Granite ~(60)Co-γ射线在花岗岩中线性吸收系数的测定
Results indicated that the microstructures of lung alveoli, renal tubulous, liver lobules etc, which could not be seen by conventional absorption X ray method but could be revealed clearly by phase contrast imaging method. The spatial resolution reached about 20 μ m. 结果表明:相位衬度显微成像可清晰显示肺泡、肾小管、肝小叶等微细的组织结构,其空间分辨率可达20微米,这些在常规X射线CT吸收衬度成像是看不见的。
Because the phase contrast resolution of X ray in soft tissues is about one thousand times higher than that of the absorption X ray method, so the phase contrast imaging is becoming the hot spot of the medical imaging. 在提高软组织成像的衬度分辨率方面,相位衬度成像技术是国内外关注的热点。据报道,软组织的X射线相位衬度的分辨率约为常规X射线CT吸收衬度分辨率的1000倍。
Determining of mass absorption coefficients for soft X ray 软X射线质量吸收系数的测定
The experimental data showed that the mass absorption coefficients varies with soil type under different Y ray energies. 从试验数据显示,在不同γ射线能量下,不同土壤类型的质量吸收系数不同。
This result agrees with that of the absorption experiments of 60 KeV γ-ray. 为检验这一结论,作了60KeV宽束γ射线的吸收实验,结果与计算相符。
A new type technique of semiconductor cleaning is studied via infrared absorption spectra, X ray photoelectron spectra and surface tension detector. 报道了利用红外吸收谱、X射线光电子谱和表面张力测试仪对新型半导体清洗工艺进行研究的结果。
Using the theory developed by J. The structure and infrared absorption spectra of the compound layers have been investigated by x ray diffraction ( XRD), Rutherford backscattering spectrometry ( RBS) and Fourier transform infrared ( FT IR) transmittance spectrometry. 利用x射线衍射、卢瑟福背散射和傅里叶红外吸收谱测量分析了样品的结构、原子的埋层分布和振动模式。
The mechanism of its visible light activity was investigated by UV Vis absorption spectra and X ray photoemission. 通过UV-Vis吸收光谱、X射线光电子能谱(XPS)等方法对其可见光活性的机理进行探索。
The nanoparticles were characterized by UV vis absorption spectra, X ray powder diffraction ( XRD), transmission electron microscopy ( TEM) and high resolution TEM ( HRTEM). 通过紫外-可见吸收光谱、X-射线粉末衍射(XRD)、透射电镜(TEM)和高分辨透射电镜(HRTEM)对样品的结构及量子限制效应影响下的光学特性进行了表征;
The gist of shielding is put the effective absorption of a ray shielding materials between ray source and the body. 屏蔽防护的要点是在射线源与人体之间放置一种能有效吸收射线的屏蔽材料。
And Automatic calibration to measure absorption coefficient of different materials. γ-ray study of tungsten-nickel alloy in the attenuation law for the promotion of tungsten-nickel alloy used to provide a theoretical basis for. 比较不同介质及不同能量的吸收系数差异,研究γ射线在钨镍合金中的衰减规律,为钨镍合金的推广使用提供理论上的依据。