1. When two deuterium nuclei (each containing a deuteron are proton, one neutron) polymerization into a helium-4 nucleus, releasing a large number of atomic energy.
因为当2个氘核(每个氘核都含有1个质子、1个中子)聚合成1个氦4原子核时,释放出大量的原子能。
2. Thanks to the relatively high atomic number, high density and wide band-gap, CZT detector possesses sharp energy resolution and high detection efficiency without cryogenic cooling. A prototype planar CZT detector with sensitive volume of Φ 8mm×1.7mm has been fabricated and the gamma-ray spectra of 241Am were obtained. At room temperature (22℃) and for the 59.54keV peak, the FWHM can achieve 2.06keV, while no polarization is observed and stability is very satisfactory.
我们实验室已制成Φ8×17立方公厘灵敏体积的CZT探测器,室温22℃下对241Am放射源、59.54keV能量的γ射线能量分辨率可以达到/2.06keV,连续测量没有极化效应,并且具有很好的长期稳定性。
3.
3. The detector system of the two-axis neutron powder diffractometer at the Heavy Water Research Reactor of China Institute of Atomic Energy was improved by increasing the number of detectors from one to four and by installing the third Soller collimators with horizontal divergence of 20''.
通过将探测器的数目由1个增加到4个、用水平发散角为20''的Soller准直器取代30''的单缝准直器,对中国原子能科学研究院重水研究堆旁的二轴中子粉末衍射谱仪进行了改进。
4. Atomic number 1; atomic weight 1.00797; melting point -259.14=C; boiling point -252.8=C; density at 0=C 0.08987 gram per liter; valence 1.See table at element
原子序数为1;原子量为1.00797;熔点为-259.14=C;沸点-252.8=C;零度时的密度是0.08987克/公升;原子价为1参见 element
5. A number of measures including the selection of matrix modifier and graphite tube, optimization of the charring and atomization parameters and matrix matching have been taken to overcome the negative interference exerted by high concentration of calcium on lead in the determination of trace lead in high-calcium nutrient supplement by graphite furnace atomic absorption spectrometry.
实验结果表明:使用5%NH4H2PO4作为基体改进剂,普通石墨管,选择灰化温度1 000℃并保持30 s,原子化温度1 400℃并保持3 s,使用标准加入法使标准系列与样品基体相匹配,钙的干扰大大降低,同时高钙营养强化剂样品铅测定的回收率达到92%。
6. atomic number 1什么意思
6. The result shows: the period of the atomic inversionis decreasing with the increase of the Kerr effect When the initialcoherent field is not great (n=10), the periodicity of the atomic state evolution is destroyed by Kerr effect, otherwise, when the initial coherent field is great (n=50), the atomic state evolution has periodicity approximately, also, the period is the same as atomic inversion Whether the average photon number of the initial coherent field is greator small, the probability that the atom locates initial state is increasing with the increase ofthe Kerr effect, when x/g=5, the atom always locates initial excited state nearly.
结果表明:克尔效应的增强使得原子反转演化的周期减小(gtR≈π/x2/g2+1);在初始相干光场较弱时(n=10),克尔介质的非线性相互作用破坏了原子态演化的周期性,但在初始相干光场较强时(n=50),克尔效应使?犹难莼越凭哂兄芷谛?且与原子反转演化的周期相同(gtR≈π/x2g2+1)。无论初始相干光场强弱如何,随着克尔效应的增强,原子回到初态的布居几率增大,当x/g=5时,原子几乎持续地处于初始的激发态。标签 Kerr效应密度算符间的距离原子反转原子量子态的演化 Kerr medium distance between density operator atomic inversion atomic state evolution
7. Fertilizers and soaps. Atomic number 19; atomic weight 39.102
原子序数为19;原子量39.102;熔点63.65°C;沸点774°C;比重为0.862;原子价为1
8. In Section 1, we use the methodof elimination of quantifiers to prove the preservation of the two special models-atomic model and saturated model by fractioning, and give two examples to show thatthe number of countable models of fraction theory can be really least than the numberof countable models of the original theory; In the last part of this section we give analmost complete classification of the changing mode about the number of countablemodels of a complete theory by fractioning. In Section 2, we deal with the categoricalproperty of fraction theory.
第一节主要是利用分式理论的量词消去性质,用一种类似Back and Forth的手法讨论了模型论中的两种特殊模型——原子模型和饱和模型在分式作用下的保持性;给出了分式作用后可数模型个数真正减少了的完全理论的两个例子,并总结了完全理论经分式作用后可数模型的个数的变化情况给出了一个较完整的分类性质;第二节就分式理论的范畴理论性质进行了讨论。
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9. The end result of any systems development methodology is a product, 1 usually composed of many atomic sub-elements (components) that can be identified by part number and field-replaced as a unit.
任何系统开发方法的最终结果都是一个产品,1通常被由许多原子级子元素(组件)组成,可以被部件号码和替换字段标识为一个单元。
10. As an example, the spontaneous magnetization and the coercivity are calculated to the third order as a function of the atomic number of layers for spin-1/2 ferrimagnetic films, and the obtained results are analysed and discussed.
作为一个特例,给出了立方格点上自旋1/2铁磁薄膜的自发磁化曲线、磁滞回线和矫顽力的三级近似结果,并对结果作了分析和讨论。
11. The software can be used to search the information of electron configuration of atomic ground state, atomic ground state of all atom with atomic number from 1 to 103, the ground state ionizing energy and photon energy of k-alpha ray are also contained in the software for a large number of atoms.
用VC++语言编了原子信息-基态和k-alpha线教学软件,该软件可查看原子序数从1到103之间的所有原子的基态电子组态,原子基态,绝大部分原子的电离能和k-alpha线的光子能量。
12. As an example, the spontaneous magnetization and the coercivity are calculated to the third order as a function of the atomic number of layers for spin-1 / 2 ferrimagnetic films, and the obtained results are analysed and discussed.
作为一个特例,给出了立方格点上自旋1/2铁磁薄膜的自发磁化曲线、磁滞回线和矫顽力的三级近似结果,并对结果作了分析和讨论。
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13. Chemical symbol H, atomic number Z = 1, atomic weight of 100, 794, is a cycle of F in Table Ⅰ A Tribe.176 the first year was found by the British chemist H Cavendish.
化学符号H,原子序数Z=1,原子量100794,属周期F表第ⅠA族。176年由英国化学家H卡文迪什发现。