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A series of novel double helicates,{A[Mo2VIO4LnIII(H2O)6(C4H2O6)2]·4H2O}n (Ln = Sm, Eu, Gd, Ho, Yb, Y; C4H2O6 = L-tartaric acid; A = NH4 or H3O), have been synthesized from the reactions of chiral ligands L-tartaric acid with molybdates as well as lanthanide cations.

利用简单的手性有机配体L-酒石酸成功地合成出了一系列类似DNA螺旋构型的左、右旋的一维链状聚合物：{A[Mo2VIO4LnIII(H2O)6(C4H2O6)2]·4H2O}n (Ln = Sm， Eu， Gd， Ho， Yb， Y； C4H2O6 = L-或 D-酒石酸； A = NH4 或 H3O)。

Extracellular domains, rich in -strands, have large acidic patches that may attract cations, through fenestrations, to vestibules near the ion channel.

另一篇相关的论文介绍了鸡的酸感应离子通道-1（ASIC1）在一种脱敏状态下的结构。

Cations of higher valencies are adsorbed more strongly to surface active sorption sites, with the following order: M+(Na+、K+、NH＋4)2+(Ca2+、Mg2+、Zn2+)3+(Al3+).

其影响趋势主要为价态的影响，即价态越高，竞争吸附能力越强：M+（Na+、K+、NH＋4）2+（Ca2+、Mg2+、Zn2+）3+（Al3+）。

The existence of such centers. is attributed to defects in crystals resulting from isomorphism between cations of different valences.

阳离子不等价类质同象造成的晶体缺陷，是使其具有电子-空穴心的内在因素。

The optimal pH, which was the major factor influencing the adsorption of cadmium, was around 6.0; and the higher concentration of cations such as K~+, Na~+, Ca~(2+), Mg~(2+), the lower the sorbing capacity of the microalgae; This effect, on the other hand, also illustrated that the ion-exchange was the main adsorption mechanism.

衣藻和固定化衣藻对重金属镉的吸附在pH6.0左右达到最佳吸附，但pH的变化对衣藻吸附镉的影响较大；固定化衣藻则在极低pH值下吸附受到显著影响，在pH3-8的范围内，所受影响不大；背景阳离子的存在对二者吸附的影响非常显著，这从另一方面证明了离子交换为衣藻生物吸附的主要机制。

The humidity resistance and the sensitivity to chemical warfare agents simulants of the tuned films were also investigated.Self-assembled LBL polyaniline films were prepared from aniline monomers by in situ polymerization and the mechanism of film formation was discussed. It was proposed that the self-assembly of polyaniline occurred through the quick absorption of aniline monomer cations or aniline monomer cation radicals on the glass surfaces by electrostatic attractions to form homogeneous polymerization centers, then increased gradually by the way of upright to the glass supports for extensity, leading to the polyaniline chain growth. The polyaniline was doped under acidic condition to absorb anionic polyelectrolyte, such as sodium polystyrene sulfonate based on the electrostatic force, or to adsorb polymer based on hydrogen-bonding interactions, for example Polyvinyl Alcohol, and then recycled to fabricate_n or_n self-assembled multilayer films.

跟踪了原位聚合的具有纳米结构的聚苯胺多层自组装膜的成膜过程，提出了该自组装膜的成膜机理：聚合反应初始阶段的苯胺阳离子或苯胺阳离子自由基通过静电作用快速吸附到带负电荷的基片表面，形成均匀的聚合中心，然后以垂直于基片的方式进行链增长生成PANI；PANI在酸性条件下经现场掺杂后带正电荷，再通过静电作用吸附带负电荷的聚电解质如聚苯乙烯磺酸钠，或通过氢键作用吸附聚合物如聚乙烯醇，这样循环LBL-SA即得到_n或_n等原位聚合聚苯胺自组装膜。

Under identical pre- and post-radiation test conditions, International Rectifiers RAD HARD HEXFETs retain identical electrical specifi- cations up to 1 x 105 Rads total dose.

在相同前，后辐射试验条件下，国际整流器的RAD硬HEXFETs保留相同电号规格阳离子高达1× 105拉德斯总剂量。

Electron transfer reaction between the radical cations of purine nucleotides and some aromatic amino acids was studied by use of pulse radiolytic techniques. Time-resolved spectroscopic evidence revealed that the one-electron-oxidized radicals of dAMP and dGMP can be efficiently repaired by tyrosine and tryptophan.

鉴于在DNA光敏损伤过程中主要生成嘌呤碱基阳离子自由基，利用脉冲辐解技术研究了嘌呤碱基阳离子自由基与部分芳香氨基酸的相互作用，获得了酪氨酸和色氨酸对单电子氧化的dAMP和dGMP经快速电子转移修复的瞬态吸收光谱证据。

The variations of ecological characteristics, soil salinity, phytochroms, polysaccharide, soluble sugars, pralines, malondialdehyde, membrane stability, inorganic cations, and antioxidant enzyme activities in Aloe vera L. irrigated with seawater having varying salinity were studied.

本论文以完全淡水浇灌的库拉索芦荟为对照，对库拉索芦荟在不同浓度海水浇灌下的生态特征和海水浇灌对土壤盐度的改善情况；以及库拉索芦荟叶中叶绿体色素、多糖、可溶性糖、脯氨酸、质膜透性、丙二醛、无机离子、抗氧化酶等几项生理指标的变化进行了研究。

In this dissertation,three principal factors which are responsible for thedistortions of MnO6 octahedra were investigated,these factors are the Jahn-Tellereffects,the size mismatch between A-and B-site cations,and the vacancies on A-and/or B-site,respectively.

本论文就是考察引起MnO6八面体畸变的三大因素及其对性能的影响。这三大因素是：Jahn-Teller效应，A位和B位离子半径的不匹配，A位和B位空位。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&