晶格弛豫

  • 网络lattice relaxation;Spin-Lattice Relaxation;spin lattice relaxation
晶格弛豫晶格弛豫
  1. 丙烯酰胺-丙烯酸交联共聚凝胶结构与分子运动的~1HNMR自旋晶格弛豫研究

    ~ 1h NMR spin-lattice relaxation studies on the structure and dynamics of aam-aac copolymer hydrogels

  2. 发现聚合物与溶剂的溶解度参数之差△δ越大,聚合物在溶液中协同链段运动趋向越明显,~(13)C自旋-晶格弛豫速率(1/T1)越大;

    It was found that with the increase of the difference of solubility parameters between polymer and solvent ( A S ), the extent of cooperative segmental motion of the polymer in solution tends to be easier and spin-lattice relaxation rate ( 1 / T1 ) becomes greater .

  3. N-正丁基苯胺的~(13)C自旋晶格弛豫研究

    The investigation of ~ ( 13 ) c spin - lattice relaxation of n-butyl aniline

  4. 分子的完全不对称旋转和甲基内旋转可待因~(13)C核自旋晶格弛豫

    Fully Anisotropic Overall Molecular Tumbling with Group Internal Rotation - ~ ( 13 ) C Spin-Lattice Relaxation Study of Codeine

  5. 根据这个转动扩散模型,利用实验测定的自旋&晶格弛豫时间和溶液粘度计算了丙氨酸在不同pH值下的体积。

    Using this rotational diffusion model , molecular volumes of alanine in different pH 's were then calculated from the observed spin-lattice relaxation times and solution viscosities .

  6. YBa2Cu3O7中Cu的NQR自旋晶格弛豫研究

    The Studies of NQR Spin Lattice Relaxation of Cu in Y Ba_2Cu_3O_7

  7. 具体结果包括:(1)应用~1HNMR化学位移和自旋-晶格弛豫时间实验技术对活化氧化铝与水的相互作用进行了研究,并拟合出了水的不同结合状态的自旋-晶格弛豫时间。

    The results are : ( 1 ) The water-alumina interaction was studied using high-resolution 1H NMR . The spin-lattice relaxation times ( T1 ) were obtained .

  8. 固体氨基酸中甲基碳自旋晶格弛豫的瞬态NOE效应

    Transient NOE Effect of ~ ( 13 ) C Methyl Spin-Lattice Relaxation of Amino Acids in Solids

  9. 浆体中水质子的化学位移移向低场,自旋&晶格弛豫时间T1值则减小。

    It was also indicated that the chemical shift of proton moved to lower field and the spin_lattice relaxation time T 1 increased with the increasing solid content .

  10.  ̄14N核四极共振自旋系统的自旋-晶格弛豫是一种双指数弛豫。

    The spin - lattice relaxation for a ~ 14N NQR spin system is a dual exponential relax-ation .

  11. 本文测定了一系列具有不同微观结构的1,2-聚丁二烯样品在四种溶剂的50.3MHz~(13)C自旋-晶格弛豫时间(T1)和核Overhauser效应(NOE)值。

    Carbon-13 spin-lattice relaxation time ( T1 ) and nuclear Overhauser factor ( NOE ) series of 1,2-polybutadiene samples with different microstructures in four different solvents were measured at 50.3 MHz .

  12. PbWO4晶体中铅空位周围晶格弛豫的研究

    Study on the lattice relaxation caused by lead vacancy in PbWO_4 crystal

  13. 利用基于第一性原理的全电子势线性缀加平面波方法计算了在碲镉汞材料中Hg空位所引起的晶格弛豫以及空位对周围原子成键机制的影响。

    Using the density-functional theory within the full-potential linear augmented plane wave method , we have calculated the influence of the mercury vacancy on the bonding mechanism and the relaxation effects in the Hg 0.5 Cd 0.5 Te ( MCT ) alloy .

  14. 通过1D1HNMR,13cNMR和1H自旋晶格弛豫时间T1对氟喹诺酮类抗菌药物与过渡金属离子Cr3+,Mn2+和Fe3+形成配合物的位置进行了研究,合成了固体配合物,对其进行了元素分析。

    By measuring 1H and 13 C NMR signals and 1H spin lattice relaxation time T 1 , we have studied the complexes formed between fluoroquinolone antimicrobials and metal ions Cr 3 + , Mn 2 + and Fe 3 + .

  15. 运用核磁共振手段,研究了室温离子液体1-辛基-3-甲基咪唑四氟硼酸盐([C8mim][BF4])在不同比例的离子液体/丙酮混合体系中1H和13C的化学位移及13C的自旋-晶格弛豫时间(T1)。

    1H NMR , 13C NMR , and 13C spin-lattice relaxation time ( T1 ) of the mixtures of room temperature ionic liquid [ C8mim ] [ BF4 ] and acetone with different proportions have been studied by NMR .

  16. 未掺杂聚乙炔中质子的自旋晶格弛豫&局域化的孤子

    The proton spin-lattice relaxation in undoped polyacetylene & localized solitons

  17. 用强迫恢复法测量原子核自旋晶格弛豫时间T1

    The Measurement of Nuclear Spin-lattice Relaxation Time T_1 Using Driven Recovery Method

  18. 红宝石中自旋&晶格弛豫直接过程的计算

    Calculation of the direct process of spin-lattice relaxation in Ruby

  19. 饱和恢复法人体核磁共振自旋&晶格弛豫时间成象方法

    Whole body NMR spin-lattice relaxation time imaging using a saturation recovery method

  20. 质子射频场照射对碳-13自旋晶格弛豫的影响

    The Effect of  ̄ 1H RF Irradiation on  ̄( 13 ) CSpin-Lattice Relaxation

  21. 红宝石Cr~(3+)离子的自旋-晶格弛豫时间和浓度效应

    Spin-lattice relaxation and concentration effects of cr ~ ( 3 + ) in Ruby

  22. 晶格弛豫和多声子跃迁理论

    Lattice relaxation and theory of multiphonon transitions

  23. 掺杂的高温超导体的自旋晶格弛豫率

    Spin-lattice relaxation in doped high-t_c superconductors

  24. 磁化矢量的增长服从单指数规律,自旋晶格弛豫主要由于磁偶极相互作用。

    The machenism of spin lattice relaxation was mainly due to the magnetic dipole dipole interaction .

  25. 不同的金属其晶格弛豫对层错能的影响不同。

    The lattice relaxation 's effect in calculation of stacking fault energy are different follow metal .

  26. 用自旋-晶格弛豫时间T1研究吗啡的不对称旋转和甲基内旋转速度

    Analysis of axially symmetric molecular tumbling and methyl internal rotation rates of morphine by ~ ( 13 ) c spin-lattice relaxation time t_1

  27. 近年的发展日益证明,固体中的局域电子态所导致的晶格弛豫(晶格原子位置移动)是局域电子态的一项基本特征,能够引起许多重要的效应。

    Recent solid state investigations increasingly emphasize that lattice relaxation represents a basic feature of localized electronic states and is responsible for many important effects .

  28. 本文建议以双极化子微观模型,根据多声子晶格弛豫理论解释顺式聚乙炔的喇曼谱。

    A bipolaron microscopic model is proposed in this paper to interpret theoretically the Raman scattering data in cis-polyacetylene on the basis of lattice relaxation theory .

  29. 自旋-晶格弛豫时间结果说明,体系中存在结合水、孔隙水、自由水三种状态的水。

    The results of T1 indicate that there exit three states of water in water-alumina system , e.g. , bound water , pore water and bulk water .

  30. 核自旋晶格弛豫率以及奈特位移的实验结果显示,超导态的电子配对是d波单态配对.d波能隙函数里存在节点,使得准粒子从涡线中心漏到涡线外面。

    The temperature dependence of the spin-lattice relaxation rate and the Knight shift indicate d-wave pairing , which brings about the extended quasiparticle states outside the vortex cores .