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The anion-exchange ion chromatography is suitable for the separation and analysis of alkaline earth metal ions, transition metal ions and rare earth metal ions.

综述了离子色谱法分析金属离子的研究进展,对目前应用于分析金属离子的阳离子交换IC、阴离子交换IC和螯合离子色谱进行了评述。

The scintillation CsI was also calibrated with protons of 15, 20, 23MeV. The average energy calibration is 1. 047MeV per channel. Energy calibration for heavy ions was completed with multiplication factor 1/12. 75. The energy calibration is around 1. 1MeV per channel for oxygen ion and iron ions when energy deposition is less than 50MeV in each detector.

对铁离子而言,铁离子的四个能量点在ΔE〓探测器中的能量均超过50MeV,能量信号放大电路此时已进入饱和状态,当铁束能量为120MeV时,离子进入到ΔE〓探测器中,此时在ΔE〓中能量沉积低于50MeV,没有达到电子学系统的饱和值,能量刻度每道为1.1MeV/道,这些与氧离子的标定结果是一致的,饱和只是对于低能重粒子会出现这种情况,对于中高能重离子这种现象就会消失。

A 2D PIC model was used to simulate the PIII process for a planar target. The simulation results in one whole pulse show that the sheath expands with a decreasing speed and the sheath shape would change form elliptically cylindrical to circularly cylindrical. The dose distribution of ion implantation in the target surface is not uniform, and the concentration depth profiles of retained dose are considerably different, in different positions of the target.

本论文采用二维粒子模拟方法对等离子体离子浸没注入技术进行了模拟研究,在一个完整脉冲时段内,等离子体离子浸没注入平板靶的模拟过程表明:等离子体鞘层的扩展先快后慢,鞘层形状由椭圆柱形向圆柱形演化;注入离子剂量在靶表面的分布是非均匀的;在靶的不同位置注入的离子在改性层中的浓度深度分布有显著差别。

According to experimental results and etiopathogenisis and pathology of osteoporosis , and analyzing review investigation on hepcidin、associations of bone metabolism and iron metabolism and relations of ferri ion and calcium ion,we can make conclusions as follows: 1、We applied single manmade intervention approach to induce osteoporosis model in this study, there was no other influential factor. In the termination of test , rats bone density and bone histological anatomy indicated that osteoporosis model was creditable,meanwhile hepatic functional enzyme and hepatic microtome section demonstrated that hepatic function had noci-influence induced by medicinal herbs resource. Accordingly, we could believe that hepatic hepcidin gene expression and serum hepcidin contents can represent internal iron metabolism changes at selected test time. 2、In this investigation, different findings between test group and control group indicated that:according to changes of hepcidin gene expression measured by RT-PCR and changes of serum hepcidin contents determined by ELISA kit , there were correlations between hepcidin and rat osteoporosis model induced by retinoic acid. 3、Under the condition of this investigation,there was a interactive hypothesis as follows: Hepcidin iron metabolism←→ferriion←→calcium ion←→osteoporosis.

根据本次实验结果,对骨质疏松的病因病理的认识及铁代谢与铁调素、骨代谢与铁代谢关系、铁离子与钙离子的关系系列研究的回顾,经分析得出如下结论:1、本研究骨质疏松模型采用单一人工干预方法,没有其他影响因素;实验结束时大鼠骨密度、骨组织学检查表明骨质疏松形成,同时肝脏功能酶和HE切片显示肝脏功能未受药源性产生明显损伤性影响;因此,同期不同时间组大鼠肝脏铁调素基因表达、血清铁调素含量可以代表体内铁代谢不同时间的变化。2、在本研究中,模型组与对照组研究结果的差异表明:铁调素基因RT-PCR变化、血清铁调素ELISA测定含量变化与维甲酸制作的大鼠骨质疏松模型形成有实验相关性。3、在本研究平台下,形成了一个互相影响的假设图:铁调素←→铁代谢←→铁离子←→钙离子骨质疏松。

The binding capacity of chloride in the concrete with ASR is much lower than that in the concrete without ASR.The crack induced by ASR does not promote the ingression of chloride significantly.

结果表明:在ASR同时作用时,混凝土的氯离子扩散速度减慢,混凝土对氯离子的结合表现为线性吸附关系,氯离子结合能力也明显降低;ASR所导致的开裂不会明显提高氯离子的侵入。

For the equilibrium system of chloroaluminate ionic liquids-heptane-aromatics,the aromatics distribution coefficients and the selectivities of ionic liquids for aromatics/heptane were influenced by the structure of ionic liquids,structure of aromatics and temperature.

对于氯铝酸离子液体-正庚烷-芳烃平衡体系,芳烃在离子液体/烃相间的分配系数Daro和离子液体对芳烃/正庚烷的选择性Saro/hep随离子液体的结构、芳烃结构和温度等因素的变化而有所区别。

Ionic strength had minor effect on the adsorption of non-ionic polymer, while polyelectrolytes were sensitive to the ionic strength and type.

离子强度的变化对非离子型聚合物吸附量的影响较小,而聚合物电解质吸附对离子强度和类型较为敏感。

In the chapter 4, the HPLC analyses of Uridine and Thymidine implanted by ions with high energy are done. The result shows that the dose effect curves of ions with high energy are almost the same to the dose effect curve of ions with low energy. At the beginning, the damage of implanted ions to the sample is large, with the dose increasing, the damage drops sharply.

第四章对高能离子辐照尿苷和胸苷做了HPLC分析,结果表明高能离子辐照胸苷和尿苷样品的剂量效应曲线和低能离子基本相同,都是在注入初始阶段对样品的损伤比较大,随着剂量的增大,损伤迅速减小。

First, this paper reports measurements of surface tension of ionic liquid EMIES (1-ethyl-3-methylimidazolium ethyl sulfate) using the forced bubble method at 278.15 to 323.15 K and densities of EMIES using Westphal balance at 278.15 to

为此,本文以廉价工业原料合成的硫酸乙酯—1—甲基—3—乙基咪唑EMIES和对水、空气都稳定的离子液体BMIBF_4为主要对象,使用密度法和最大气泡法等实验方法对这两种离子液体及其EMIES的水溶液的性质作了如下研究工作:在278.15—338.15K范围内用Westphal天平测定了EMIES和BMIBF_4的密度,用最大气泡法测定了纯离子液体EMIES和BMIB_4的表面张力。

Microscopic characteristics of cladded crystal fiber are analyzed by X-ray diffraction, Laue X-ray diffraction and scanning electron microscopy, it is found that magnesium-ion indiffusion does not affect the single crystal structure and the domain structure of the magnesium diffused crystal fiber. It is found for the first time that MgO-rich layer in the magnesium diffused LiNbO〓 surface layer exhibits the crystal structure of an unknown compound from the Li-Mg-Nb-O ternary system and MgNb〓O〓. It is proposed for the first time that this unknown compound and MgNb〓O〓 in MgO-rich layer are the real sources of magnesium-ion indiffusion LiNbO〓. Their appearance indicate that MgNb〓O〓 is in the surface layer of MgO-rich layer, the unknown compound is in the subsurface layer and beneath where the MgNb〓O〓 is located, and these compounds have obviously preferred orientation.

通过镁离子内扩散法,首次在国内实现了具有阶跃和抛物折射率分布的c轴LiNbO〓单晶光纤和a轴Nd:MgO:LiNbO〓单晶光纤的芯—包层波导结构,为我国在该项目的研究填补了空白;建立了晶纤损耗的测量系统,提出了利用单模石英光纤作为晶纤入射光耦合器的思想;通过对晶纤损耗的测量,得到了包层晶纤比未包层晶纤损耗降低约14倍的好结果,并实现了低次模传输:对经镁离子内扩散实现包层后的晶纤的微观特性,利用X射线衍射,劳厄照相和扫描电镜表征发现,晶纤并不因镁离子的内扩散而影响其单晶结构和镁的扩散层畴的变化。

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