均化

Bidens pilosa var. radiata, one of the rapid expanding invasive weeds, has become prevailing throughout Taiwan. A study on the result enhanced by the breakdown of geographic isolation with the native varieties in genetic variation, population structure and introgressive hybrization is really in need. In this study the genetic variation and population structure among the varieties of Bidens pilosa complex were studied using ISSR markers.

在台湾Bidens pilosa种群在外部形态及分布上均非常类似，加上大花咸丰草又属极具侵略性的新归化种，在与其他自生变种又无明显隔离下，是否增加种间之交流与渐渗杂交之机会及对族群结构的影响，实有深入探讨之必要。

For this reason, theC〓/ donor PET system in aqueous medium will serve as the high efficient modelsystem to simulate the natural photosynthetic system.3 Photolysis and photooxidation of N-phenyl naphthylamines and photoinducedisomerization of alkyl isonitrile Reaction intermediates produced during the photolysis and photooxidation of N-phenyl naphthylamines were determined by spin trapping-ESR technique.

由于包容物导致的空间距离作用和水分子对离子对电荷分离所具有的溶剂化稳定作用，水相体系中C〓阴离子寿命相对于有机均相体系C〓阴离子的寿命成数量级地显著增长。

Proline was much more accumulated in the fleshy leaves of K.foliatum with increased salt concentration concided with the expression pattern of K.foliatum P5CS, suggesting that proline and betain as two effective osmolytes had important functions for Kalidium foliatum during stress.

检测的各基因均受盐的诱导。P5CS和KfBADH基因的表达随着盐浓度的升高而表达逐渐增强，而脯氨酸的含量也随着盐胁迫程度的增强而在盐爪爪肉质化叶内积累更多，说明脯氨酸和甜菜碱作为重要的渗调物质，在植物逆境胁迫中可能发挥着重要的作用。

Result In comparison with the control group, various degrees of empty osteocyte lacunae appeared in all 30 samples from the experimental group.

结果］与对照组相比，30例标本中均可见不同程度的空骨陷窝化。

The proposed coupler featuring utilizly laddered stubs and stepped impedance on a single circuit board case achieves compact size. The requirement since both are distributed elements system which utilizes reduced length for the replacement of traditional microstrip line which acted as equivalent capacitances and inductances.

上述之宽频支干耦合器，是设计在单层板的结构，且不论是步阶式阻抗或是梯状开路残段的设计方式，均有缩小化的效果；因为步阶式阻抗与梯状开路残段都是散步式元件，所以可用较短的长度取代传统微带线之等效电感或电容值。

Compared with the conventional emulsion polymerization system,the latices that are of monodispersed latex particles of 0.5m m in diameter,low viscosity and high storage stability are prepared by emulsifier-free emulsion polymerization.

实验结果表明，与常规乳液聚合体系相比，所获得的无皂乳液的乳胶粒大小均一，粒径在0.5m m左右，粘度低，储存稳定；共聚物呈完全无规立构，玻璃化转变温度均在25℃附近，拉伸强度明显增大，耐水性和剥离强度显著提高。

Chapter 5 and 6 are concentrated on the fundamental problem how to con-struct finite-dimensional and infinite-dimensional Liouville integrable Hamiltonsystem.Starting from two isospectral problems,Tu's scheme is applied to gen-erate the corresponding CKdV hierarohy and coupled Burgers hievachy,andthey are shown to be Liouville integrable Hamilton systems.Two spectral prob-lems,which contain three and four potentials respectively,are also studied byTu's scheme.Two new Liouville integrable Hamilton hierarchy are estab-lished.A new general approach using Lenard's gradient sequence is presentedto obtain Lax integrable hierarchy and their zero curvature representation,andsome examples are given.The nonlinearization procedure is applied to theeigenvalue problem of coupled Burgerrs hierarchy.It is shown that underBargmann constraint,the spatial part of the Lax pairs is nonlimearized to be afinite-dimensional Liouville completeiy integrable Hamilton system.

第五、六章研究如何从一个谱问题出发构造可积发展方程族及其零曲率表示、Hamilton结构和判断Liouville可积性：通过对二类具有2个位势的等谱问题直接研究，利用屠格式生成了耦合KdV族和耦合Burgers族，并证明它们均为Liouville可积的广义Hamilton方程族；而通过分别具有3个和4个位势的等谱问题，遵循屠格式构造了二族新的Liouville可积的广义Hamilton方程族；给出了利用Lenard梯度递推序列产生发展方程族及其零曲率表示的一种方法，作为应用，讨论了CKdV族，BPT族及耦合Burgers族的产生及其零曲率表示；应用非线性化技巧，证明了在Bargmann约束下，耦合Burgers族的Lax组可被线性化为Liou-ville完全可积的Hamilton系统。

The biological safety of Bacillus thuringiensis Strain YJ-2000 which acted the low toxicity to Bombyx mori newly hatched larvae and marked insecticidal activity to other lepidopterous insects was evaluated compared with other two Bt strains,i.e.

YJ 2 0 0 0菌株除导致 1龄幼虫历期延长 11 1%、取食量减少 0～ 6 0 0 %及体重降低 5 2 3%～ 6 2 5 %外，对 2龄及其以后各龄幼虫的存活率、发育历期、取食量、眠蚕体重、化蛹率、蛹期、全茧量、蛹重、茧层量、羽化率和产卵量等均无显著影响。

Based upon the ecoanatomical method, leaf anatomical characters of eleven populations of six evergreen species (Cyclobalanopsis glauca, C. myrsinaefolia, C. gracilis, Castanopsis sclerophylla, C. eyrei and Lithocarpus glaber) from the eastern subtropical area of China were analyzed and compared with SPSS, DCA and TWINSPAN. The results are: 1. Although the leaf structures of the eleven populations still belong to the mesophyll type, they all express the trend of xerophilization. 2. There are some differences in leaf anatomical characters among populations, species and genera, which occur as the results of their adaptation to different habitats. 3. Different leaf anatomical characters have different variations among populations, species and genera, of which leaf thickness and palisade tissue thickness (considered as ecological adaptation characters) have greater variation than sponge tissue thickness, lower cuticle thickness and lower epidermis thickness (as systematical evolution characters). 4. The leaves of C. sclerophylla and C. glauca with thicker lamina, palisade tissue and cuticle (a multilayered upper epidermis in C. sclerophylla) are thought to better adapt to their dry habitat. The leaves of C. eyrei with thicker sponge tissue, although characterized by a multlayered upper epidermis, adapt to their humid and warm habitat. The leaves of C. myrsinaefolia and C. gracilis characterized by a thinner lamina, a less palisade tissue and a moderate cuticle thickness adapt to the humid and cool habitat in a middle mountain.

选取亚热带东部替代分布明显的壳斗科6种常绿树种（青冈、小叶青冈、细叶青冈、苦槠、甜槠和石栎）的11个种群叶片进行生态解剖，并用SPSS， DCA和TWINSPAN比较分析，结果表明：①尽管6种11个种群叶的结构仍属中生叶型，但有着不同程度的趋旱适应；②叶的解剖性状在属间、种间和种群间均存在着不同程度的差异，这是它们适应各自生境的结果，青冈和石栎的种内差异较大，反映出它们对环境变化有较强响应能力；③叶片的不同解剖性状在属、种类和种群间的变化并不同步，其中叶片和栅栏组织厚度等性状差异突出，反映它们更易受环境的饰变，是生态适应性状，而海绵组织、下角质膜，特别是下表皮厚度等性状差异较小，显示出这些性状的稳定性，可以认为是系统演化性状；④苦槠、青冈具有较厚的叶片、栅栏组织、角质膜和发达输导和机械组织，苦槠还具有复表皮，表现出对旱化生境的适应；甜槠尽管具有复表皮和较厚的叶片，但这是海绵组织增厚的结果，是对中生生境的适应；小叶青冈和细叶青冈具有较薄的叶片和栅栏组织、角质膜厚度居中等特点，可能是对中山凉湿生境的适应。

Results The contents of loganin and morroniside was higher than 98% by normalization method of HPLC.

结果所得马钱苷和莫诺苷用归一化法定量，质量分数均大于98%。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。