Objective To investigate the change of striatal dopaminergic system of hemiparkinsoni an monkeys and PD patients treated by deep brain stimulation (DBS) of the sublhalamic nucleus (STN) with single photon emission computed tomography (SPECT) examination.
目的通过单光子放射计算机断层扫描(SPECT)功能显像研究探讨丘脑底核脑深部电刺激(STN DBS)对纹状体多巴胺系统代谢的影响。
参考来源 - 丘脑底核脑深部电刺激治疗帕金森病的功能显像研究Pulse modulating and attenuating techniques are implemented to get the single photon, and the subsingle\|photon source is achieved with only 0.1 photon in one pulse.
实验采用脉冲调制加衰减的方法产生单个光子,获得了每个脉冲中只包含0.1个光子的准单光子源。
参考来源 - 期刊学术社区·2,447,543篇论文数据,部分数据来源于NoteExpress
Yes. In fact, there is not enough energy in a single photon to go ahead and eject an electron from this zinc surface.
是的,事实上,这里的光子没有足够的能量,去从锌表面逐出一个电子。
Light from the core gets scattered in this zone, so that a single photon often may take a million years to pass through.
从核心发出的光在这一区域发生散射,以至于一个光子可能要花100万年才能通过。
The scientists found that the precursor wave front of a single photon always travels at c, like the signal velocity of large groups of photons.
科学家发现,单个光子的前驱波头一般以光速c传播,就像由大量光子携带的信号的传播速度一样。
Yes. In fact, there is not enough energy in a single photon to go ahead and eject an electron from this zinc surface.
是的,事实上,这里的光子没有足够的能量,去从锌表面逐出一个电子。
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