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- The MR demonstrates an area of mixed signal intensity on proton density (PD) and T2-weighted (T2) images in a right parietal-occipital region. 磁共振T2加权像及质子密度像均显示在右侧顶枕区有一混合强度区域。
- You will run a MATLAB? program that loads some images (T1 and proton density maps). 使用MATLAB程式载入一些影像（T1与质子密度图）。
- This manipulation can change the dependence of the observed signal on the three parameters: proton density, T1 and T2. 这种调控是通过改变质子密度，T2和T2三种因素对所观察的信号的作用来实现得。
- T 2-and proton density weighted images often showed high-signaling of pontine transversal fibers(19/28) and middle cerebellar peduncles (12/28). 在T2 和质子密度加权像上常可见桥横纤维 (19/ 2 8)和小脑中脚 (12 / 2 8)高信号。
- In Section II, relaxation processes and relaxation time in resonance were introduced. The contrast of proton density is one of the techniques to characterize different tissues. 第二章介绍了弛豫过程和弛豫时间。不同的氢核密度具有不同的弛豫过程和弛豫时间的,在实际应用中可以区分不同物质的种类。
- For most "soft" tissues in the body, the proton density is very homogeneous and therefore does not contribute in a major way to signal differences seen in a image. 对于身体中大多数的“软”组织,由于质子密度非常均一,在影像上没有方法来区别这些组织的信号。
- The accuracy for detecting increased hippocampal signal intensity with different MR pulse sequences was FLAIR sequence(88.9%), SE (77.8%), FSE (62.2%), and proton density sequence(43.3%), in decreasing order of frequency. SE序列质子密度加权像判别海马信号强度增加的准确度最差（43.;3%25）； FSE序列次之（62
- Concerning to Liao He Oilfield actual condition,the method of block layer by injecting detergent has been reseached by NMRI technology of proton density 2DFT spin-echo in BRUKE 47/40 system. 利用核磁共振成象技术（NMRI），采用质子密度的2DFT的自旋回波成像方法，针对辽河油田的实际情况，采用注泡沫剂封堵地层的方法进行了研究。
- In strong magnetic fields, Proton density increases with the increasing of total baryon densities, while neutron number density decreases. 随着总粒子密度的增加质子粒子数密度增加，中子粒子数密度减小。
- Keywords Oil field;steam foam;NMRI imaging Proton density;Oil saturation; 油田;注蒸气泡沫;核磁共振成象;质子密度;含油饱和度;
- A proton or a neutron, especially as part of an atomic nucleus. 核子质子或中心，尤指作为原子核的一个组成部分
- The density of population in this city is very high. 这个城市的人口密度非常高。
- Proton and neutron form a charge doublet. 质子和中子构成电荷双重态。
- proton density 质子密度
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- Diphenylmethane would have a two proton peak. 二苯甲烷必定有一个二质子的峰。
- Nitroform is such a strong proton donor. 三硝基甲烷是一个极强的质子给予体。
- The electron continues to whirl about the proton. 电子继续绕着质子转。
- The proton and electron are certainly long-lived. 质子与电子当然可算长寿了。
- Does the proton finally come to rest? 这个质子最终会静止吗?
