1) energy relaxation
能量弛豫
1.
The energy relaxation and diffusion processes can be measured b.
用超快反射谱法测量了载流子的能量弛豫过程和扩散过程,用高能量激光激发得到载流子的能量弛豫时间约为几个皮秒,这与载流子与声子的散射几率密切相关;而用低能量激光激发可得到光生载流子的扩散时间约为1百皮秒量级。
3) cross energy relaxation
交叉能量弛豫
4) energy relaxation time
能量弛豫时间
1.
The result obtained shows that velocity overshoot may increase the drain current and has a great impact on the device characteristics,and that the energy relaxation time is correlated closely with the electric field of some point in the device as well as the velocity and the energy of the carriers,thus constant value is not appropriate for this parameter.
NMOSFET能量弛豫时间与器件中该点的电场、载流子速度和载流子能量密切相关,从而不能再近似为一个常数。
5) relaxivity
弛豫效能
1.
The longitunal relaxation time (T1) was measured, and relevant relaxivity values of thes.
配合物的纵向弛豫效能(R1)测试结果表明:所有配合物的R1都高于Gd-DTPA。
6) Relaxivity
弛豫性能
1.
Synthesis and Proton Relaxivity of Gd -EDDS and Gd-EDDS and Gd-THEC;
EDDS与THEC的钆(Ⅲ)配合物的合成及其对水质子的弛豫性能研究
2.
Their relaxivity in D2O is 6.
以N_9GdW_(10)O_(36)和K_(11)[Gd(PW_(11)O_(39)_2]作为研究对象,根据元素分析,红外光谱及差热-热重分析进行表征,对两种稀土杂多配合物的稳定性、溶解性进行了研究,并测试了其在水中及BSA溶液中的弛豫性能。
3.
The relaxivity of some of these gadolinium complexes were also investigated.
配体和配合物的化学结构用1HNMR、IR和元素分析表征,并测试了其中五种配合物的弛豫性
补充资料:“质子-电子偶极-偶极”质子弛豫增强
“质子-电子偶极-偶极”质子弛豫增强
物理学术语。原子核外层中不成对的电子质量小,但磁动性很强,可使局部磁场波动增强,促使氢质子弛豫加快,从而使T1和T2缩短,这种效应即为PEDDPRE。过渡元素和镧系元素大部分在d和f轨道有多个不成对电子,所以其离子往往具有PEDDPRE,可用来作顺磁性对比剂,如钆(Gd)。Gd在外层有7个不成对电子,具有很强的顺磁性。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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