Objectives: To evaluate the usefulness and safety of CO2 splenoportography(CO2-SP) by comparing it with 3-dimensional dynamic contrast-enhanced magnetic resonance angiography(3D DCE MRA) and transarterial portography.
目的：与三维动态增强磁共振门静脉造影(3D DCE MRA)和动脉法间接门静脉造影对照，评价细针脾穿刺CO2门静脉造影(CO2-SP)的使用价值及安全性。
Methods (1)We observed the serial sheet sections of the optic apex region obtained using collodion microtomy in 4 adult cadaver heads; (2)High resolution CT scanning and three dimensional images of the optic apex region were observed and measured in 10 adult volunteers; (3)High resolution magnetic resonance images of the optic apex region were obse.
①采用火棉胶切片技术对4例(8侧)成人眶尖区标本进行连续薄层断层解剖学观察；②使用高分辨力CT及三维重建技术观测10例(20侧)志愿者眶尖区；③观测5例(10侧)志愿者眶尖区高分辨力MRI断层扫描图像；④对30例(60侧)成人干颅骨标本和15例(30侧)成人湿性头颅标本的眶尖区结构进行显微解剖；⑤在手术显微镜和内窥镜下对3例成人头颅湿性标本模拟眶内经颅入路。
The three-dimensional conformation of HNTX-I in aqueous solution was determined using two-dimensional'H NMR techniques. The complete sequence-specific assignments of proton resonance in the'H-NMR spectra of HNTX-1 were obtained by analyzing a series of 2D spectra, including double-quantum-filtered correlation spectroscopy, total correlated spectroscopy and nuclear overhauser effect spectroscopy in H2O and D2O.
应用二维1H-NMR。技术研究HNTX-I的溶液结构特点，通过分析水和重水中的DOF-COSY、TOCSY和NOESY谱，识别出HNTX-I全部33个氨基酸残基自旋体系；通过NOESY谱中的dαN、dβN、dNN和Dαδ联系完成了序列专一的谱峰归属，从而确认了HNTX-I所有的主链质子和大于96％的侧链质子的化学位移。
Objective: To investigate the three dimensional quantitative measurements of menisci by the magnetic resonance imaging and its clinical significance.
目的 探讨半月板的MRI三维测量及临床意义。
A novel domain decomposition method without resonance based on an auxiliary excitation algorithm is developed for the simulation of three-dimensional (3-D) large-scale electromagnetic problems.
针对三维电大问题，提出了一种基于辅助激励源的区域分解算法。
Objective To assess the diagnostic value of three-dimensional contrast-enhanced magnetic resonance pulmonary angiography (3D CEMRPA) with dadolinium-DTPA in acute pulmonary embolism.
目的 探讨钆喷替酸葡甲胺三维增强磁共振肺动脉血管造影成像（3D CEMRPA）在急性肺栓塞（pulmonary embolism，PE）中的诊断价值。
In quantum mechanics, its motion is two-dimensional resonance. Its energy level is separate. Its wave function is probability.
如果考虑它的量子效应，在垂直磁场方向是二维各向同性谐振子的运动，它的能级是分立的，对应的波函数是几率波函数。
The main research contents of this project are: establishing the numerical computation model of the cavitating flow based on the N-S equation of the three-dimensional viscous unsteady flow; predicting the unsteady characteristic of the flow field in hydraulic turbine flow passage; uncovering the phenomenon of the seperated flow, forming and falling off of the vortex which may appear in the flow passage of the water turbine; discussing its mechanism at the same time and then predicating the pressure pulsation which is caused by the fluid motion; and then analysing the hydraulic resonance characteristic in order to predict the hydraulic steady condition of the power station.
本项目主要的研究内容是：建立基于三维粘性非定场N-S方程的数值计算模型，预测水轮机过流部件内部非定场流场特性，揭示过流部件内部可能的分离流、漩涡形成和脱落等现象，探讨其机理，并由此预测因其流体运动所引起的压力脉动，并对过流部件的水力共振特性进行分析，作出机组水力稳定性状况的预测。
Based on the theory of the particles suspended in fluid experience acoustic radiation forces and the structure model of one-dimensional multilayer resonance separator, the structure model based on the two-dimensional normal vibration modes was proposed.
基于超声波对流体中悬浮微粒的声辐射力的相关理论和一维多层谐振分离器结构模型，提出了基于二维简正振动模式的微机电系统超声分离器结构模型。
The algebraic structures of coefficients in normal forms of two-dimensional maps in resonance and non-resonance cases are obtained by introducing the invariant under complex affine transformation and the invariant under rotational transformation. The multiple Hopf bifurcations are discussed.
引入复仿射不变量及旋转不变量概念，得到二维映射在共振与非共振情形下规范型系数的代数结构，并利用规范型讨论二维映射的多重Hopf分支。
Three-dimensional~1H-magnetic resonance spectroscopic imaging of prostate gland: using body coil and endorectal coil Determination of Sodium Alkylbenzene Sulfonates by High Performance Liquid Chromatography and Electrospray Ionization Mass Spectroscopy
前列腺3D~1H-MRSI：体线圈与直肠内线圈谱线质量对照高效液相色谱-质谱联用法对线性烷基苯磺酸钠同系物的检测
This paper introduced the structural and tuning principles of a three-dimensional vibration table, established variable stiffness experimental equipment and studied the role played by resonance in the energy and amplitude variation in a variable stiffness system.
首先介绍了三维振动台的结构原理和变刚度调谐原理，建立了变刚度试验装置，研究了共振在变刚度系统中能量和振幅变化情况。
Quantitative assessment of aortic regurgitation: a comparison between real-time three-dimensional color Doppler flow imaging and magnetic resonance imaging
主动脉瓣反流的定量评估：实时三维彩色多普勒血流成像与MRI对照研究
The effects of the three-dimensional structural and vibrational behavior of prototype bridge can thus be considered in the two-dimensional sectional model test of vortex-excited resonance via the proper mass simulation and amplitude conversion by means of the derived formulae.
由此，通过合理的质量系统模拟和响应幅值换算，可在二维的涡激共振节段模型试验中考虑实桥的结构和振动的三维特性的影响。
One and two-dimensional nuclear magnetic resonance studies at 300 MHz have been performed on gramicidin S in DPPC reversed micelle.
本文用300MHz核磁共振仪对反向DPPC脂囊泡中短杆菌肽S进行了研究。
In the high dimensional phase space, the local projective algorithm is used to separate it into ground signal and noise signal in the time series by dividing the phase space into orthogonal sub-spaces. Then the signal removed noise is processed by demodulated resonance method.
局部投影算法将时间序列先进行相重构，在高维的相空间上采用局部投影的方法将相空间分解成正交的子空间，来分离时序中背景信号和噪声分量。
Time scales of the evolution in bistable system and the reinforcement of stochastic resonance Frequency-dependent stochastic resonance in a two-dimensional neural map
双稳系统演化的时间尺度与随机共振的加强二维映射神经元模型中频率依赖的随机共振
Multi-slice spiral computed tomography (MSCT) and magnetic resonance imaging (MRI), which have the capability of helical scanning and three-dimensional post-processing techniques, can demonstrate the intestinal wall and extra-lu-minal structure clearly.
多层螺旋CT（MSCT）和磁共振成像（MRI）具有快速扫描和三维后处理能力，能清晰反映肠壁和肠腔外的病变。
The absorption peaks and transmittance characteristics of one-dimensional spherical silver nanoparticles array structure has been simulated, and the effect of particle size on resonance absorption peak as well as the effect of space of particles on transmittance have been discussed and studied.
模拟仿真一维球形银纳米粒子阵列结构的吸收峰和透射特性，在400nm-1100nm波长范围内，分析研究了粒子尺寸的大小对共振吸收峰的影响以及粒子间距对透射率的影响。
The relativistic effects on resonance absorption, occurring when a high intensity p_polarized laser pulse is incident obliquely onto inhomogeneous plasma, are discussed by use of one_dimensional particle_in_cell simulation.
（2005年11月30日收到；2006年2月8日收到修改稿）采用一维粒子模拟（PIC）方法，研究了相对论效应对P偏振激光斜入射非均匀等离子体时产生的共振吸收的影响。