查询词典 hydrogen ion

Objective To develop an ion chromatogram method for determinat ion of fluoride in the sea food and meat.

目的研究探讨一种适用于海产品、肉制品中氟含量测定的离子色谱检测方法。

1 Ion Chromatograph capable of 50 ppb or better ion detection.

4.1检测极限为50 ppb或检测能力更强的离子色谱仪。

Methods: Compare the different absorb abilities and filtration capabilities among the tiny grains of three adsorbing materials bamboocharcoal, backbone carbon, active carbon） for F1 ion in the drinking water as well as the influences of the effects to absorb and filter F1 ion by different factors such as pH value,.coagulator and so on.

比较三种吸附材料的超细颗粒对饮水中氟离子的吸附能力，pH值、聚合氯化铝对除氟效果的影响以及在自来水中的除氟效果。

The nuclear force applying similarity's restrains inertial guidance way, the speed regulation carrying out commixture on the ion beam being unlike speed and the energy, develops the able ion allocating the fast direct-current transformer, is that cold nuclear fusion piles up, the nuclear engine and that kind nuclear power station start nuclear fusion and electric energy therefore the corollary equipment transporting systematic importance, combining to apply for a patent.

本发明项目特征是：在常温真空条件下，设置空间特定组合的电磁场，根据轻原子核固有的磁矩和内电场，先将两串待聚变的原子核约束在同一条线段内；再利用原子核固有的自旋动量矩矢量形成近光速自旋的超强力自转陀螺惯性制导特性，来克服库仑强势垒的偏向作用，实现直接对撞核聚变的；应用相似的核力约束惯性制导方式，对不同速度和能量的离子束进行混合调速，研制成的离子调速直流变压器，是冷核聚变堆、核发动机和该类核电站启动核聚变和电能输送系统的重要配套设备，所以合并申请一个专利权。

Structures of Na~+-AD ion-complexes with 1 or 2 H2O molecules were obtained. It was found that H2O can bond with Na~+ in the structure of Na~+-AD to form Na-O van der Waals bond. H2O molecule can also bond with N or O atoms in AD moiety to form H-bonds as N-H…Ow or O…Hw-Ow. The former process takes place more easily. The most stable structures of Na~+-AD ion-complexes with 1 and 2 H2O molecules are W-C7AB and 2W-C7AB, respectively.αB conformer of Na~+-AD can not exist in the presence of 2 H2O molecules.

研究发现水分子可以结合在Na~+-AD络合离子中的Na~+附近形成Na-OW范德华键，也可以与Na~+-AD络合离子骨架结构中电负性较强的N或O原子结合形成N-H…OW或O…HW-OW氢键，相对而言，水分子更容易结合在Na~+-AD络合离子中的Na~+位置，Na~+-AD最稳定的带1个或2个水分子的结构分别为W-C7AB和2W-C7AB，Na~+-AD络合离子的αB构象在2分子水存在的情况下完全消失。

In addition, the energy of s and p orbits of F2 or F3 ion is lower in the ferroelectric phase than in the cented symmetry phase and the covalence character of F1 ion whose contribution to the displacement is largest almost lose, which stabilize the structure of the ferroelectric system.

铁电相F2(F3)离子的能量低于中心对称相，最大位移贡献者F1的化学键性由弱共价作用到离子键的变化也是最大的，这均有利于体系的稳定。

The recovery process of free cyanide ion from cyanide-containing solution by D301 ion-exchange resin is investigated.

用弱碱性D301树脂回收含氰溶液中的游离氰。

Experiments concerning the ion beam extraction and transmission have been done in Institute of Modern Physics on the Lanzhou Electron Cyclotron Resonance Ion Source No.

针对ECR离子源的束流引出及传输研究，在中国科学院近代物理研究所的LECR3离子源实验平台上开展了大量的实验。

The dependance of 14N+1 ion range in PET film on ion energy was calculated by TIRM92 Monte Carlo program.

并与用TIRM92 Monte Carlo程序计算的14N+1离子在PET材料中的射程-能量曲线进行了比较和讨论。

Compre ion of nerve roots often produces objective se ory changes early, with paresthesia and lo of se ating detectable in the affected dermatome. With continued root compre ion. Motor weakne may develop. With involvement of the L4 root, the patellar tendon reflex may be diminished and slight quadrice weakne may be o erved.

神经根受压常很早即产生客观的感觉变化，在受影响的皮节区有感觉异常及感觉缺失，神经根持续受压，可发生运动肌无力，若累及腰4神根，可见膝腱反射减弱和轻度股四头肌无力，小腿肌肉感觉减退。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。