查询词典 proton

Experimental results show that with increasing proton fluence,the S-parameter of the Doppler broadening spectrum gradually decreases,and the W-parameter increases.

研究结果表明，随质子辐照注量的增加，多普勒展宽谱的S参数逐渐减小，W参数逐渐增大。

A 3D dosimetry system of proton therapy facility was designed and constructed in Institute of Modern Physics.

文章描述了中国科学院近代物理研究所正在研制的IMP质子治癌装置3D剂量测量系统。

The C, H chemical shifts of the compound were assigned and the coupling constant, J values, were also given out. The three downfield proton and carbon signals in the 1H NMR and 13C NMR spectra for target compounds have been assigned for the first time.

对代表性目标化合物TM-I-5c的NMR谱进行了详细的研究，对其C、H化学位移进行了全归属，给出了相应的偶合常数J值，并确定了其空间结构。

Compared to that of two-arm PCL18–DBAS (Figure 1a), the NMR spectrum of the mixture revealed that characteristic methylene proton signals of DBAS, which initially overlapped with signals corresponding to the PCL main chains, shifted downfield to d=4.5–4.7 ppm upon complexation (Figure 1c).

相比于二臂PCL18-DBAS（图1a），此混合物的核磁共振谱揭示，DBAS的特性亚甲基质子信号，他们一开始是与相应于PCL主链的信号重叠的，而在络合作用下则向下面漂移到δ＝4.5～4.7ppm（图1c）。

"Although treatment success with either step-up or step-down treatment is similar, the step-up strategy is more cost effective at 6 months for initial treatment of patients with new onset dyspeptic symptoms in primary care," the study authors write."Nonetheless, patients on initial empirical treatment with proton pump inhibitor show an earlier response, especially in the small subgroup with predominant reflux symptoms."

作者们写到，虽然进阶或降阶组的治疗成效相当，但是进阶策略在治疗开始6个月后对接受初级照护的新发作消化不良症状病患而言是更符合经济效益的；然而，一开始经验疗法使用质子帮浦抑制剂的病患，反应较快，特别是在少数以逆流症状为主的病患中。

Elastic scattering of 〓 and 〓 with proton using reversible kine-matics is studied.

论文讲述了采用逆运动学方法用放射性核束〓和〓与质子弹性散射的实验准备、设计方法、实验情况、实验数据处理。。。

In Chapter 2,an in-situ reaction method is presented for preparing the proton-conducting electrolyte membrane with high quality.

第二章发展了一种原位反应的方法来制备高质量的电解质薄膜。

What we want to know is whether the weight of a proton is much greater than that of an electron.

我们要知道的是，质子的重量是否比电子的重量大得多。

Keratin; hair; wool; proton exchange membrane; conductivity; slow-release fertilizer; eluviation rate

角蛋白；头发；羊毛；质子交换膜；电导率；缓释肥料；淋溶速率

Proton events in general only occur in SAA region while electron events appear at both SAA and polar regions.Electron flux of 0 5～2 0?MeV in polar regions is dominant over that of 2～15?MeV,while at SAA,fluxes from the two channels are about the same.There is a close correlation between energetic particle radiation inside and outside the satellite.

与现有理论模型和国外大致相同轨道上的空间高能辐射环境直接观测资料对比还表明，卫星舱内的辐射与舱外的空间辐射环境是完全相关的，积累的有关资料不但是航天设计和环境应用研究所需的重要参量之一，也是空间物理基础研究特别是辐射带研究的重要数据。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。