作业帮英语翻译急求英语翻译,要人工的,不要在线的,是中译英.electronic shell structure and ab
来源：学生作业帮 编辑：作业帮 分类：综合作业 时间：2024/05/12 05:04:40
英语翻译
急求英语翻译,要人工的,不要在线的,是中译英.
electronic shell structure and abundances of sodium clusters
mass spectra are presented for sodium clusters of N atoms per cluster produced in a supersonic expansion with argon carrier gas.The spectra show large peaks or steps at N=8,20,40,58 and 92.these can be understood in terms of a one-electron shell model in which independent delocalized atomic 3s electrons are bound in a spherically symmetric potential well.
we find distinct regularities in the mass spectra of sodium atoms per cluster .figure 1(a) shows a single continuous mass scan over the rang N=4-75,and a separate mass scan for N=75-100.each peak represents the number of clusters of a given N detected during a fixed time interval in a molecular beam of sodium seeded in argon .the peaks or steps for certain masses ,corresponding to N=8.20.40.58.and 92 ,are conspicuously large ,especially compared with the peaks immediately following .the dimer ,N=2 (not shown),also exhibits pronounced abundance relative to N=3-7.between the above peaks we observe uniquely patterned regions which are recognizable over a wide rang of experimental conditions .for example ,the even-odd alternation in the ranges N=8-14 and34-40 are always seen regardless of the relative intensities of the respective whole regions .to illustrate this ,fig .2 shows mass scans for four different argon pressures and a constant sodium vapor pressure of 16 kpa.it may be seen that increasing pressure favors the large clusters ,and causes depletion of smaller ones ,without altering the integrities of the respective regions .the clusters which are conspicuously abundant in the mass spectra are assumed to be relatively more stable .if we furthermore single out the electronic structure of those clusters as the cause of the enhanced stability ,a simple picture emerges.
we associate the mian sequence N=8,20,40,58 and 92 with an electronic shell structure for sodium clusters .the shell structure is determined by large energy gaps between different energy levels .the electronic structure of bulk sodium metal can be understood by using the nearly free-electron picture .in this case ,the 3s valence electron interacts with a smooth one-particle effective potential composed of ionic pseudopotentials and an electron-electron interaction potential .A similar model appears to e applicale to the clusters .we simulate the effective one-electron potential inside the cluster with a spherically symmetric rounded potential well .the calculation is performed with a potential of the form..
自动的翻译我自己会去查，我要的是正确的人工的翻译，别乱来了！
急求英语翻译,要人工的,不要在线的,是中译英.
electronic shell structure and abundances of sodium clusters
mass spectra are presented for sodium clusters of N atoms per cluster produced in a supersonic expansion with argon carrier gas.The spectra show large peaks or steps at N=8,20,40,58 and 92.these can be understood in terms of a one-electron shell model in which independent delocalized atomic 3s electrons are bound in a spherically symmetric potential well.
we find distinct regularities in the mass spectra of sodium atoms per cluster .figure 1(a) shows a single continuous mass scan over the rang N=4-75,and a separate mass scan for N=75-100.each peak represents the number of clusters of a given N detected during a fixed time interval in a molecular beam of sodium seeded in argon .the peaks or steps for certain masses ,corresponding to N=8.20.40.58.and 92 ,are conspicuously large ,especially compared with the peaks immediately following .the dimer ,N=2 (not shown),also exhibits pronounced abundance relative to N=3-7.between the above peaks we observe uniquely patterned regions which are recognizable over a wide rang of experimental conditions .for example ,the even-odd alternation in the ranges N=8-14 and34-40 are always seen regardless of the relative intensities of the respective whole regions .to illustrate this ,fig .2 shows mass scans for four different argon pressures and a constant sodium vapor pressure of 16 kpa.it may be seen that increasing pressure favors the large clusters ,and causes depletion of smaller ones ,without altering the integrities of the respective regions .the clusters which are conspicuously abundant in the mass spectra are assumed to be relatively more stable .if we furthermore single out the electronic structure of those clusters as the cause of the enhanced stability ,a simple picture emerges.
we associate the mian sequence N=8,20,40,58 and 92 with an electronic shell structure for sodium clusters .the shell structure is determined by large energy gaps between different energy levels .the electronic structure of bulk sodium metal can be understood by using the nearly free-electron picture .in this case ,the 3s valence electron interacts with a smooth one-particle effective potential composed of ionic pseudopotentials and an electron-electron interaction potential .A similar model appears to e applicale to the clusters .we simulate the effective one-electron potential inside the cluster with a spherically symmetric rounded potential well .the calculation is performed with a potential of the form..
自动的翻译我自己会去查，我要的是正确的人工的翻译，别乱来了！
电子壳结构和钠团簇丰度
质谱给出的每一个运营商与氩气膨胀产生的超音速N原子簇钠集群.该光谱表明,大峰,或为N = 8,20,40,58和92步骤.这可以理解为一个电子壳模型,其中独立非局域电子被原子三分球对称的潜力和约束条件.
我们发现,在每个群集钠原子质谱明显的规律性.图1（1）显示了一个持续的大规模扫描在铃响ñ = 4-75,和独立的大规模扫描的N = 75-100.每个峰代表某一N团簇人数时发现的一钠在氩气中的分子束种子固定时间间隔.山峰或某些群众,相当于为N = 8.20.40.58步骤.92,有明显的大型,尤其是相比较后立即高峰.二聚体,N = 2时（未显示）,也表现出明显的相对丰度为N = 3-7.我们观察之间的独特图案的地区是公认的较广泛的实验条件响起以上的山峰.例如,即使在范围ñ = 8-14 and34 - 40多总是交替出现,不论各自整个区域的相对强度.为了说明这一点,图0.2显示了大规模扫描四种不同的氩气压力和不断的钠蒸气压16日朝鲜人民军.可以看出,增加压力,主张大集群,并导致小的损耗,不改变各自区域的integrities.专题组是显眼的质谱丰富的假设比较稳定.如果我们还出了作为增强的稳定性,一个简单的图片引起的团簇电子结构单一的出现.我们赞同的米扬序列ñ = 8,20,40,58和92例为钠团簇电子壳结构.壳体结构,取决于不同能量水平差距较大的能源.对散装金属钠的电子结构可以理解用的近自由电子图片.在这种情况下,三分球价电子交互顺利单粒子赝有效的离子和电子组成的潜力电子相互作用势.出现类似的模式对电子applicale的集群.我们模拟了一个有效的内部用球对称圆形的潜力和集群电子潜力.进行计算,是一个形式的潜力..
质谱给出的每一个运营商与氩气膨胀产生的超音速N原子簇钠集群.该光谱表明,大峰,或为N = 8,20,40,58和92步骤.这可以理解为一个电子壳模型,其中独立非局域电子被原子三分球对称的潜力和约束条件.
我们发现,在每个群集钠原子质谱明显的规律性.图1（1）显示了一个持续的大规模扫描在铃响ñ = 4-75,和独立的大规模扫描的N = 75-100.每个峰代表某一N团簇人数时发现的一钠在氩气中的分子束种子固定时间间隔.山峰或某些群众,相当于为N = 8.20.40.58步骤.92,有明显的大型,尤其是相比较后立即高峰.二聚体,N = 2时（未显示）,也表现出明显的相对丰度为N = 3-7.我们观察之间的独特图案的地区是公认的较广泛的实验条件响起以上的山峰.例如,即使在范围ñ = 8-14 and34 - 40多总是交替出现,不论各自整个区域的相对强度.为了说明这一点,图0.2显示了大规模扫描四种不同的氩气压力和不断的钠蒸气压16日朝鲜人民军.可以看出,增加压力,主张大集群,并导致小的损耗,不改变各自区域的integrities.专题组是显眼的质谱丰富的假设比较稳定.如果我们还出了作为增强的稳定性,一个简单的图片引起的团簇电子结构单一的出现.我们赞同的米扬序列ñ = 8,20,40,58和92例为钠团簇电子壳结构.壳体结构,取决于不同能量水平差距较大的能源.对散装金属钠的电子结构可以理解用的近自由电子图片.在这种情况下,三分球价电子交互顺利单粒子赝有效的离子和电子组成的潜力电子相互作用势.出现类似的模式对电子applicale的集群.我们模拟了一个有效的内部用球对称圆形的潜力和集群电子潜力.进行计算,是一个形式的潜力..