电荷密度法,charge density method
1)charge density method电荷密度法
1.The voltage distribution of electron gun was calculated with thecharge density method and the electron trace was calculated, the non-uniformity of emission current density at the target was calculated.论述了高能辐照电子枪的设计,比较了热阴极和冷阴极的优缺点,实验指出了采用碳纳米管冷阴极的好处;利用电荷密度法求出电子枪的电位分布、计算了电子轨迹和靶面处电流密度分布的均匀性。
2)π charge density methodπ电荷密度法
1.Based on the molecular orbital theories, three kinds of methods are systematically introduced, such as theπ charge density method, localization energy method and frontier electron density method, which are used in predicting the reactivity at the ortho, para and meta position of the mono-substituted benzenes.以分子轨道理论为基础,系统介绍了π电荷密度法、定域能法和前线电子密度法等三种用于预测一元取代苯进行亲电取代反应时邻、间、对位的相对反应活性及反应产物的方法。
3)charge density电荷密度
1.The method of synthesis of P-DADMAC,the factors such as dosage of initiator,reaction temperature,reaction time and nitrogen feeding,the relationship between relative molecular weight andcharge density,the effect of pH value on thecharge density were studied.探讨了引发剂用量、反应温度、反应时间、通氮气时间等因素对P-DADMAC相对分子质量的影响,以及相对分子质量和溶液pH值对电荷密度的影响;研究了P-DADMAC对浆料的助留助滤作用,以及作为阴离子杂质捕捉剂时与CPAM的协同作用。
2.The calculation of charge population,bond length and difference electric-charge density between Fe and Al atoms show that the bond between Fe and Al will be enhanced after doping th.结果表明:元素Zn、Mn、Ni都会优先替换界面处的Fe原子,使得界面结合能增加,体系更稳定,有利于界面的结合;跨界面的Fe原子与Al原子之间的电荷布居、键长以及差分电荷密度图的计算表明:掺杂后有利于跨界面的Fe-Al间成键,从而加强了Al层与Fe基体的结合,且结合强度由强到弱依次为:掺Zn>掺Mn>掺Ni;与实验比较吻合。
3.Using the extended Su-Schriffer-Heeger model,in real space,we calculate the electronic structure andcharge density of three systems,(9,0)-(8,0),(9,0)-(7,0) and (9,0)-(6,0),which are achieved by introducing topological defects (5/7) ,(5/6/7),and (5/6/6/7) in the perfect hexagonal network of the zigzag carbon nanotube configuration.在紧束缚近似基础上,利用扩展的SuSchrifferHeeger(SSH)模型,在实空间中计算了理想的“zigzag”碳纳米管中分别引入5/7,5/6/7,5/6/6/7拓扑缺陷所构成的(9,0)(8,0),(9,0)(7,0)和(9,0)(6,0)三种系统的能带结构和电荷密度,并对这三种系统的计算结果进行了比较。
英文短句/例句
1.By the charge density we mean the per unit volume.所谓的电荷密度是指单位体积的电荷。
2.Charge Density Wave and the Analysis on Grüner s Equation;电荷密度波与Grüner方程的向量场分析
3.Partial Discharge Measuring Based on Change of the Charge Density in Oil;基于油中电荷密度变化的局部放电测量
4.ζ Potentials and Pore Surface Charge Densities of the Porous Polymer Membranes (PMP-013MF Membrane);高分子MF膜的微孔表面ζ电位和电荷密度
5.THE LOW FREQUENCY PINNING OF CDW IN W DOPED THALLIUM BLUE BRONZE Tl 0.3 Mo 0.99 W 0.01 O 3钨掺杂铊蓝青铜中电荷密度波的低频钉扎
6.It was concluded that: ① the charge density decreases steadily from the end near the frontal electrode to the bomb tail;其结论是 :弹体电荷密度自靠近前电极的一端至弹尾逐步衰减 ;
7.Study on Preparation of Cationic/Amphoteric Polyelctrotyles with High Charge Density by Hofmann Reaction;Hofmann反应法制备高电荷密度阳离子型/两性型聚电解质的研究
8.Low-Temperature Electronic Transport Property of Quasi-One-Dimensional Charge-Density-Wave Conductor Rb_(0.3)MoO_3;准一维电荷密度波导体Rb_（0.3）MoO_3的低温电输运性质
9.The relation between the surface charge density of a charged ellipsoidal conductor and its principal radii带电导体椭球的面电荷密度与主曲率半径的关系
10.This dissipation process limits the maximum surface change density on a planar surface to 30μc/??这种耗散作用限制着物体平面的最大表面电荷密度为30μc/?蕖?/UK>
11.STUDIES ON THE RELATIONSHIP BETWEEN THERMODYNAMIC PROPERTIES OF HYDRIDES AND VALENCE ORBITAL ENERGY,IONICITY OF BOND;氢化物热力学性质与键的离子性和有效键电荷密度的相关性
12.The electric potential and field strength around electric mains being influencedby electrified cloud are calculated. The density of charge on the surface of electric mains iscalculated as well.计算出带电云层影响下的输电线周围空间的电势、场分布以及输电线上的电荷密度分布.
13.Probability Density Function of Voltage Sag Sensitivity and Its Application敏感负荷电压凹陷敏感度概率密度函数及应用
14.220/20kV power supply scheme in high load density urban areas城市高负荷密度地区220/20kV供电方案研究
15.Density Functional Theory on the Charged Hard-sphere Fluid Confined in Parallel Plates平行硬壁间荷电硬球流体的密度泛函理论研究
16.Their antistatic performances were determined using methods of electrification voltage by friction and surface density of charge.采用摩擦起电电压法和电荷面密度法，对其进行了抗静电性能测试。
17.Study of Charged Particle Rapidity Density and Charge Fluctuations as a Signature of QGP Formation;带电粒子快度密度与电荷起伏作为QGP信号的研究
18.A simple deduction of the relationship between polarization charge density and polarization tensor;极化电荷体密度和极化强度关系的一种简明推导
相关短句/例句
π charge density methodπ电荷密度法
1.Based on the molecular orbital theories, three kinds of methods are systematically introduced, such as theπ charge density method, localization energy method and frontier electron density method, which are used in predicting the reactivity at the ortho, para and meta position of the mono-substituted benzenes.以分子轨道理论为基础,系统介绍了π电荷密度法、定域能法和前线电子密度法等三种用于预测一元取代苯进行亲电取代反应时邻、间、对位的相对反应活性及反应产物的方法。
3)charge density电荷密度
1.The method of synthesis of P-DADMAC,the factors such as dosage of initiator,reaction temperature,reaction time and nitrogen feeding,the relationship between relative molecular weight andcharge density,the effect of pH value on thecharge density were studied.探讨了引发剂用量、反应温度、反应时间、通氮气时间等因素对P-DADMAC相对分子质量的影响,以及相对分子质量和溶液pH值对电荷密度的影响;研究了P-DADMAC对浆料的助留助滤作用,以及作为阴离子杂质捕捉剂时与CPAM的协同作用。
2.The calculation of charge population,bond length and difference electric-charge density between Fe and Al atoms show that the bond between Fe and Al will be enhanced after doping th.结果表明:元素Zn、Mn、Ni都会优先替换界面处的Fe原子,使得界面结合能增加,体系更稳定,有利于界面的结合;跨界面的Fe原子与Al原子之间的电荷布居、键长以及差分电荷密度图的计算表明:掺杂后有利于跨界面的Fe-Al间成键,从而加强了Al层与Fe基体的结合,且结合强度由强到弱依次为:掺Zn>掺Mn>掺Ni;与实验比较吻合。
3.Using the extended Su-Schriffer-Heeger model,in real space,we calculate the electronic structure andcharge density of three systems,(9,0)-(8,0),(9,0)-(7,0) and (9,0)-(6,0),which are achieved by introducing topological defects (5/7) ,(5/6/7),and (5/6/6/7) in the perfect hexagonal network of the zigzag carbon nanotube configuration.在紧束缚近似基础上,利用扩展的SuSchrifferHeeger(SSH)模型,在实空间中计算了理想的“zigzag”碳纳米管中分别引入5/7,5/6/7,5/6/6/7拓扑缺陷所构成的(9,0)(8,0),(9,0)(7,0)和(9,0)(6,0)三种系统的能带结构和电荷密度,并对这三种系统的计算结果进行了比较。
4)electric charge density电荷密度
1.It tests the resistance of yarn and theelectric charge density of fabric on surface.将有机导电纤维与羊毛混纺制成纱线与织物,测试纱线电阻值及织物表面摩擦电荷密度,研究导电纤维含量、织物组织结构及纱线线密度对织物抗静电性能的影响。
5)charge density荷电密度
1.Method for obtaining thecharge density of nanofiltration membrane;一种求得纳滤膜荷电密度的快速方法
6)load-density method负荷密度法
1.Firstly,the saturate load of each area is predicted throughload-density method.在依据负荷密度法对地块负荷进行饱和预测的基础上,借鉴标量场分析方法,考虑地块居民与商业负荷之间的辐射作用,对地块负荷预测结果进行调整,使之更符合负荷的实际分布规律。
延伸阅读
电荷密度分子式：CAS号：性质：原子或分子中某特定点的电荷密度或分子中某一特定原子所带的电荷。如果已经知道了体系的波函数ψ(r)，则在原子或分子中某点r处的电荷密度为-e|ψ(r)|2dτ。而分子中某一特定原子所带的电荷通常是根据原子轨道Ф线性组合而成的分子轨道φi=∑ciμφμ计算得到的，例如分子中某原子所带电荷为∑ni|Ciμ|2，其中ni为占据轨道中的电子数。
