objection
发表于 2025-3-23 10:50:16
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Banister
发表于 2025-3-23 17:35:29
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啮齿动物
发表于 2025-3-23 20:14:25
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ORE
发表于 2025-3-23 22:17:21
Spectroscopy,sonance phenomenon can also be used to yield information on chemical structure and composition. This is the basis for NMR spectroscopy, which by definition is the study of the intensity patterns of NMR signal as a function of spectral frequency.
贞洁
发表于 2025-3-24 02:48:05
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懒惰民族
发表于 2025-3-24 06:56:47
ity of MR to provide cross-sectional images, as well as chemical and physiological information, has attracted students from many disciplines. Because applied MR is multidisciplinary, it is generally taught in an informal setting rather than as structured course work. During my years of teach ing th
百科全书
发表于 2025-3-24 11:49:04
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octogenarian
发表于 2025-3-24 18:50:31
Magnetic Field Gradient Pulses and Spatial Encoding of MR Signal,e entire volume of the sample. In fact, the amplitude of the field varies linearly with distance. The amplitude can be made to vary along the ., ., or . axis independently and is generally expressed in millitesla per meter (mT/m). Figure 2.1 shows the magnetic field generated as a result of two valu
Rct393
发表于 2025-3-24 21:11:35
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Dawdle
发表于 2025-3-24 23:50:27
Contrast Agents,trast agent proved beneficial in resolving these ambiguities and improved the specificity of MR by highlighting regions of blood/brain barrier breakdown, by identifying the presence or absence of perfusion and/or abnormal vascularity, and by distinguishing tumor from associated edema.