查询词典 potential function

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Kronos 警告您确信，您完全地了解潜在的风险在访问连接的站点之前通过Kronos 网站(您的系统的包括潜在的传染由计算机病毒)。

B Of the six basic media MS, MS1/2 (half-strength of MS salts and vitamins), WPM, DKW, B5 and SH, MS1/2 was the most proper one to induce somatic embryos. Somatic embryos generally regenerated directly from excised zygotic cotyledons. PGRs combination affected somatic embryogenesis significantly. Medium with NAA 1mg/L, TDZ 0.05mg/L, IBA 2—10mg/L combined with BA 10mg/L, or IBA 10mg/L integrated with BA 0-2mg/L gave the highest induction rate. Excised zygotic hypocotyls had the strongest potential to produce callus. Callus induction was also affected significantly by media and PGRs. The proper callus induction condition was MS1/2 medium containing NAA 1mg/L, IBA 10mg/L, BA 2-5mg/L and TDZ 0.05mg/L. Harvest period affect somatic embryogenesis significantly. Zygotic embryo explants collected from the end of July to the middle of August had strong potential to generate somatic embryos, when endosperm finished solidification, different parts of the embryos were completely formed, the size of embryos occupied about 2/3 of the embryo sac. Provided with optimized conditions, direct somatic embryogenesis rate can attain to 33. 68%, and callus induction rate of hypocotyls was up to 90.7%. Cytological observation on megasporogenesis and zygotic embryogenesis of Manchurian ash showed that the ovary was twicarpellum, twilocular with two ovules each loculus. The ovule was tenuinucellar and anatropous, with one megasporcocyte. The development of embryo sac is of the Polygoum type.

体细胞胚胎发生研究的结果表明：(1)成熟过程中的合子胚是诱导水曲柳体细胞胚胎发生的最佳外植体材料；(2)在所试验到的MS、MS1/2（将MS的所有成分均减半）、WPM、DKW、B〓、SH等六种基本培养基中，MS1/2是最适合诱导水曲柳体细胞胚胎发生的基本培养基；(3)水曲柳的体细胞胚胎发生以直接发生为主，体细胞胚主要来自于从合子胚分离的完整子叶；(4)培养基中的激素组合对水曲柳的体细胞胚胎发生有显著影响，诱导直接体细胞胚发生较好的激素组合有NAA 1mg/L+IBA 2，5，10mg/L+BA 10mg/L+TDZ 0.05mg/L和NAA 1mg/L+IBA 10mg/L+BA 0，2mg/L+TDZ 0.05mg/L；(5)合子胚分离的下胚轴具有最强的愈伤组织诱导潜力，少数愈伤组织可以分化出体细胞胚；(6)愈伤组织的诱导也受培养基和激素配比的显著影响，最适宜诱导的培养条件为MS1/2+NAA 1mg/L+IBA 10mg/L+BA 2，5mg/L+TDZ0.05mg/L；(7)采种时间对体细胞胚胎发生有显著影响。7月末到8月中旬的合子胚具有较强的体细胞胚发生潜力，此时种子尚未成熟，胚乳已呈固态，种胚的各个部分已分化完全，种胚体积占胚腔的大约2/3；(8)在各自综合的最适条件下，完整子叶的体细胞胚诱导率可达33.68%，下胚轴的愈伤组织诱导率可达90.7%。

The metric is equal to the usual result plus the contribution from spinor field,namely,it contains not only usual logarithmic repel potential,but also an additional logarithmic attractive potential which is modification contributed from spinor field.

其度规为通常的结果加上旋量场的贡献，即在通常对数排斥势的基础上获得了一项附加的对数引力势的修正。

Hence, it is impossible to measure the reversible potential by low-current charge/discharge method because of the potential-hysteresis in the directions of current flow.

在前两章理论研究和分析的基础上，后几章则重点研究添加剂对镍电极性能的影响，特别是较系统地研究了钻及其化合物的作用及机理。

Standard patch clamp methods were used to measure whole cell capacitance,zero current potential,reversal potential and potassium ion currents of Deiters′ cells in normal external solution.

目的：分离豚鼠内耳活性良好的单离Deiters细胞，观察其形态；探讨该细胞的基本电生理特性。

This represents all the hydrocarbon potential and about half of the most important mineral potential identified by the MERA Study, as well as 100% of the existing mineral claims and mining leases such as the Prairie Creek Mine, currently under development, and the operating Cantung Mine.

这意味着所有的生烃潜力和大约一半的最重要的矿藏潜力所确定的梅拉研究，以及100 ％的要求和现有的矿产采矿租约，如草原溪煤矿，目前正在开发和经营Cantung矿。

A novel design of reference electrode was developed to in-situ measure the polarization of direct methanal fuel cell.The effect of humidification conditions of electrolyte on the reference electrode potential and its potential stability was investigated.

提出了用于原位测量直接甲醇燃料电池极化的参比电极的结构设计，并考察了电解质的润湿程度对参比电极的电位及其电位稳定性的影响。

A three kinds variables potential energy functional, which is equal to the functional of minimum potential energy principle, is proposed.

本文给出了与最小势能原理的泛函等价的三类变量的能量泛函_3，其中应力应变关系是变分过程中的约束条件。

It is concluded that if the monatomic model of Chapter 3 is used the pair potential constructed by the former method cannot predict correct heats of solution, while the pair potential constructed by the latter method can predict the lattice constants, the bulk moduli and the cohesive energies of the Ll〓 superstructures formed by the two kinds of atoms within acceptable accuracy.

推广到合金的情况，提出了由某个二元超结构的结合能曲线和由稀极限溶解热反演埋入原子法的合金对势V〓的两种不同的方法。

Current researches show little attention to this structure and thus this paper is devoted to an overall understanding of this structure. The content of this thesis focuses on the following three aspects:First, when restricting the potential semantic range of noun phrases with its own proposition, the modifying clauses in English and Chinese share the same semantic features. That is to say, the modified noun phrase and the predicate of the clause depend on each other for existence. This semantic restrictiveness is obligatory for the clause and the noun phrase it modifies in both languages. Second, though sharing the same potential conceptual meaning, the combination of a clause and its modified noun phrase shows different syntactic position in surface structure as well as the inner structure of the clause. Based on a full description of syntactic characteristics of this kind of clause, the present thesis points out the differences and similarities existing in surface structure between English and Chinese. Finally, under the guidance of Chomskys Minimalist Program(1995), the thesis analyses the derivational processes of this structure in both languages.

现有的对比研究对于该结构的探讨，不论是在描述和解释上都是不完备的，为了深化这一句法结构的认识，本文从如下几个方面对英汉分句作定语修饰名词的现象进行了对比：首先，分句用自身的命题限制中心名词的语义范围时，在两种语言中具有相同的语义特征，即中心名词与分句内部的谓词之间存在依存关系，分句修饰名词必然受到语义的限制，是英汉两种语言必须共同遵守的准则；其次，英汉两种语言中表达相同概念意义的这一句法单位与其修饰的名词结合后，在表层结构中体现出不同的位置关系，且分句内部的句法结构也各有特点，本文在充分对其句法特征描述的基础上，指出二者在表层形式上的差异和共性；最后，尝试在乔姆斯基的最简方案(1995)框架内，演示英汉两种语言。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。