active region

active region的基本解释

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[计] 作用区, 活动区

与active region相关的网络例句 [注：此内容来源于网络，仅供参考]

It is included that 4-5 types of active sites exist in the catalytic system and the active site produced polymer with low molecular weight is easy to be activiated while TEA is used as the cocatalyst. While TIBA, the active site produced polymer with high molecular weight and seldom active site produced polymer with low one is prone to be activiated. MAO tends to activiate the active site produced polymer with middle-level molecular weight. In TEA-TIBA catalytic system, TEA and TIBA activiate the corresponding active site and the weight of every active site gradationally varied with the change of the ratio of the two cocatalysts. And the activity of the active site produced polymer with high molecular weight is proportion to the concentration of TIBA.

发现：TEA作为助催化剂时产生低分子量产物的活性中心易于活化，且体系中具有活性的活性中心有4～5种；TIBA易于活化产生高分子量的活性中心，基本上不能活化产生低分子量产物的活性中心；MAO对产生中等分子量产物的活性中心活化能力较强；在TEA-TIBA混合物体系中，TEA和TIBA各自对活性中心的作用表现为明显的互补现象，各活性中心的相对强度随着两种助催化剂之间的比例改变呈现渐次变化，其中产生高分子量产物的活性中心的相对活性(来源：c5AB3fC论文网www.abclunwen.com)与TIBA的浓度有明显的正相关性。

E. , approximately four months; 2 the active periods occur much longer than the non-active periods; the main climatic characteristics of the non-active periods, compared with the active periods, is weaker monsoon with westerlies at 850-hPa and easterlies at 200-hPa on the deviation fields of circulations over the SCS (active time minus non-active time); it is warmer in the active periods than in the non-active periods at lower and upper levels; 3 in most circumstances, the low frequency vibrations of the summer monsoon and its rainfall are quite in phase.

2其中活跃期出现时间要比非活跃期长的多。与活跃期相比非活跃期主要气候特征表现为季风的减弱，在环流的偏差场上在南海上空850hPa上为西风，200hPa上为东风，活跃期高低空都比非活跃期要暖一些。(3)在多数情况下夏季风和夏季风降水的30-60天的低频振荡比较一致。

(1) cerebral ischemical reperfusion injury rats'limbs motor function is variable. Acupuncture could promote lims'functional recovery.(2) PCNA masc cells is visible in cerebral ischemical semidarkness region. There is cell regeneration phenomenon. Acupuncture could strengthen injury region's PCNA expression, could profit injury recovery and functional reconstruction.(3) In ischemia semidarkness region for the model group and acupuncture group, PCNA masc cells percentage of 14days group is lower than 7days group. Along with the recovery of injury, cell multiplication is weaken.(4) In cerebral ischemia semidarkness region, there is VEGF masc cells and regeneration phenomenon. Acupuncture could strengthen injury region's VEGF expression, could profit protection after injury and blood vessel regenerate.(5) In ischemia semidarkness region for the model group and acupuncture group, VEGF masc cells percentage of 14days group is lower than 7days group. Along with the recovery of semidarkness region, ischemia and anoxemia state is getting improved, and VEGF is reduce.(6) As there are PCNA and VEGF masc cells in brain injured region, we could conclude that, after brain ischemical reperfusion injury, there are blood vessel regeneration phenomenon. Acupuncture could promote blood vessel regeneration, recovery blood supply sufficiently and quickly, and promote the recovery of brain injury region.(7)The VEGF masc cells percentage of inhibitor group is lower than acupuncture group. It state that the effect of acupuncture promote VEGF is partly depend on the existing of eNOS.

实验结论：(1)脑缺血再灌注损伤后大鼠的肢体运动功能发生改变，针刺可以促进肢体功能恢复；(2)脑缺损伤区可见PCNA阳性细胞，存在细胞再生现象，针刺可以增强损伤区PCNA的表达，有利于损伤的修复和功能重建；(3)针刺组和模型组14d时缺血损伤区PCNA阳性细胞百分比低于7d组，随着损伤逐渐得到修复，细胞增殖现象减弱；(4)脑缺血损伤区可见VEGF阳性细胞，存在内皮型细胞再生现象，针刺可以增强损伤区VEGF的表达，有利于脑损伤后保护和缺血区血管再生；(5)针刺组和模型组14d时缺血损伤区VEGF阳性细胞百分比低于7d组，随着缺血损伤的修复，缺血缺氧状态得到改善，产生的VEGF减少；(6)由于脑损伤区同时出现PCNA阳性细胞和VEGF阳性细胞，前者是增殖细胞的标志，后者是促进血管再生的重要因子，可以推断，脑缺血再灌注损伤后脑内存在血管再生现象，针刺可以促进损伤区的血管再生，更迅速而充分的恢复损伤区的血供，促进脑损伤区的修复；(7)抑制剂针刺组脑损伤区VEGF阳性细胞百分比与针刺组相比有不同程度的降低，说明针刺促进缺血损伤区VEGF表达部分依赖eNOS的存在。

与active region相关的网络解释 [注：此内容来源于网络，仅供参考]

active region：作用区

Vb1 电压遽降,一旦Vb1 小於0.7V 时,Q1 便截止了,所以Vb2 电压 ...试绘出一pnp 电晶体在作用区(active region)的偏压电路及各极中少. 数载子的分布图. (20%). 10.已知图5中电晶体的V. BE. =0.7V ,β=100 及V. A. =100V.

active region：活性区

「近十年来的高输出功率LED都是使用相同的材料,我们的新方案则是改变了现有LED活性区(active region)的关键元素,相信这种改变将改革全世界的固态照明技术.

active region：活动区

所谓欧姆接触,是指金属与半导体的接触,而其接触面的电阻值远小于半导体本身的电阻,使得组件操作时,大部分的电压降在于活动区(Active region)而不在接触

active region：工作区

顺向主动模式:以NPN晶体管为例子,射极接负电压,基极接正电压形成顺偏,而集极电位又较基极高,是为逆偏,此时晶体管处于工作区(active region). 在NPN晶体管处于工作区时,射极P-N接面上空乏区的热平衡会被破坏,

coronal active region：日冕活动区

coronagraphic camera 日冕照相机 | coronal active region 日冕活动区 | cosmic-ray exposure age 宇宙线曝射法年龄