质子

Objective To investigate the differential diagnosis value of 1H magnetic resonance spectroscopy (1H-MRS) and (superscript 99m)Tc-methoxy isobutyl isonitrile single photon emission computed tomography on postradiotherapy relapse and radionecrosis. Methods 1H-MRS and SPECT were performed in all 35 cases.

目的 探讨质子磁共振波谱(1H-MRS)和99mTc-甲氧基异丁基异腈单光子发射计算机断层显像对脑肿瘤患者放疗后复发与放射性坏死的鉴别诊断作用。

In this prospective study, 52 consecutive patients who were receiving PPIs and who were positive for H. pylori by BreathID, a new, continuous real time 13C-urea breath test, were randomized to receive either omeprazole 20 mg/day or pantoprazole 40 mg/day for 14 days. Complete test data was available for 43 patients.

在这项前瞻性研究中，52位接受质子帮浦抑制治疗，且以新式持续性即时13C-尿素呼吸检验仪器BreathID检查后，确认为幽门螺旋杆菌阳性的患者，将他们随机分配为2组，一组每天服用20毫克omeprazole，另一组则每天服用40毫克pantoprazole，并持续治疗14天，最后共有43位完成全部试验。

Reactant gas flow rates needed by proton exchange membrane fuel cell have important influence on its performance and cost.

气体流量对质子交换膜燃料电池的性能和运行成本具有重要的影响。

The SMPEES copolymers have high ion exchange capacity because of o-methylhydroquione itself simple structure,which results in a high proton conductivity in reactively low degree of sulfonation...

发现邻甲基对苯二酚结构单元的存在，使聚合物具有较高的离子交换容量，从而使低磺化度的共聚物具有相对高的质子传导率。

The SMPEES copolymers have high ion exchange capacity because of omethylhydroquione itself simple structure, which results in a high proton conductivity in reactively low degree of sulfonation.

发现邻甲基对苯二酚结构单元的存在，使聚合物具有较高的离子交换容量，从而使低磺化度的共聚物具有相对高的质子传导率。

Furthermore, the rebinding of modified protein on PSⅡ membranes can not restore the oxygen evolution.

我们认为Trp241可能在33kDa蛋白的一些氨基酸残基去质子化形成功能性构象的过程中发挥重要作用。

Four kinds of 〓 reconstitution methods were compared.

比较了四种重建〓的方法，结果表明去污剂稀释法不仅简单、快速而且重建〓表现较高的质子转运活性。

Therefore, the both affected ion exchange and changed ion balance inside and outside of chloroplast membrane. ABA reduced pH of chloroplast suspension and dropped electrical potential of chloroplast membrane, ZT increased this electrical potential.

因此，二者可影响叶绿体膜内外离子的交换，改变膜内外质子的平衡，ABA降低光下叶绿体悬浮介质的pH，降低膜的电势值，ZT则增加其电势。

This reradiation or transmission of energy by the nuclei as they return to their initial state is what is observed as the MRI signal.

质子在返回初始状态时所重新辐射或释放的能量就是我们所观察的磁共振信号。

Under anaerobic condition, bacteria could respire with diverse noxious substances as terminal electronic acceptor. Electrons were transferred in the electron transport chain from electron donor to electron acceptor and formed trans-member proton concentration gradient, and were furthermore conserved into energy for metabolism.

在厌氧条件下，细菌利用环境中多种有毒物质作为呼吸链末端电子受体进行厌氧呼吸，在有毒物质被还原甚至降解的同时实现电子在呼吸链上的传递，形成跨膜的质子浓度电势梯度，进而转化为其生长代谢所需的能量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。