1) Magnetic fluoroscopy
磁共振透视
2) resonance transmission
共振透射
1.
According to the transmission coefficient formula on one coo rdinate scattering particles problem,the physics mechanism of power base penetrate from microcosmic angle is explained,and the resonance transmission and counting resonance are discussed.
依据一维粒子散射问题中的透射系数公式 ,从微观角度解释了势垒贯穿的物理机理 ,并讨论了共振透射和计算了共振宽
2.
Using numberical method,the paper studies resonanc transmission of a symmetric double well-potential in one-dimension,and the relations of resonance transmission with the width of potential well,of the space between of two potential well and of the energy of incident particular.
文章利用数值计算的方法,研究了一维对称双势阱的透射系数与势阱的深度、两势阱间距以及入射粒子能量之间的变化规律,并分析产生共振透射的条件。
3.
,The stationary state Schrdinger equation for the plane wave passing through a double δ potentialbarriers(well) with unequal strengths is investigated and the conditions o f the incident wave incurring the resonance transmission and the way to describe the substationary state are also analysed.
讨论了解的物理含义，分析了入射波产生共振透射的条件及其亚稳态的描述方
3) transmission resonance
透射共振
4) resonance penetration
共振穿透
5) NMR
核磁共振
1.
MR SCANNER-A NEW GENERATION NUCLEAR MAGNETIC RESONANCE (NMR) LOGGING TOOL OF SCHLUMBERGER;
斯伦贝谢新一代核磁共振测井仪MR Scanner
2.
NMR Analysis of Ortho/Para Hydroxymethyl in Phenyl Phenolic Resin and Its Characters;
苯基苯酚型酚醛树脂中羟甲基邻/对位异构的核磁共振分析及性能影响
3.
Temperature Effect on NMR Relaxation Time for Bulk Fluids and Fluids in Rocks;
储层流体及其在岩石孔隙中的核磁共振弛豫温度特性
6) Nuclear magnetic resonance (NMR)
核磁共振
1.
The nuclear magnetic resonance (NMR) logging has the best advantages compared with the conventional well logging.
核磁共振测井可以提供直观、准确的孔隙度、渗透率等参数,它所提供的参数与岩石骨架和矿物无关。
2.
The pulsed nuclear magnetic resonance (NMR) characteristics of various samples are studied.
超小型核磁共振成像仪已经应用在近代物理实验教学中,该仪器可以研究各种样品的脉冲核磁共振。
补充资料：13C 磁共振谱
13C（核自旋量子数I为1/2）在静磁场中能级分裂和从射频电磁波吸收能量由低能级跃迁至高能级而产生的磁共振谱,与质子磁共振谱相似，但有以下差别:①它在高能级的寿命较长，限制了使之进行跃迁的射频电磁波的功率；②磁共振的灵敏度与旋磁比γ 的三次方成正比，而，致使13C磁共振是1H磁共振的灵敏度的1/64；③13C的天然同位素丰度为1.1％,而1H则为99.8％，所以它的灵敏度又要比1H磁共振低两个数量级；④13C磁共振谱的分辨能力高,其化学位移范围为600微克（1H磁共振的仅为20微克），从而对分子量为300～500的有机化合物几乎可分辨每一个13C峰，这在1H磁共振中决不可能。从13C磁共振可以观测不与质子相连的基团，如C＝O、C呏N等基团。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条