表明的

The results shown that both [Cu_2]~2+ and NR molecular can intercalates into the DNA double helix layer, and there is a competition between these two interactions. Furthermore, chemometrics approach, parallel factor analysis, was used to resolve the measured three-way CW-SFS data, which provided simultaneously the concentration information for the three reaction components, NR, [Cu_2]~2+ and NR-DNA, for the system at each equilibrium point. This PARAFAC analysis indicated that the intercalation of the [Cu_2]~2+ molecule into the DNA proceeds by exchanging with the NR probe, and can be attributed to two parallel reactions.

本工作以同步荧光技术采集了竞争作用的三维数据，并结合了化学计量学中的平行因子法对此三维数据进行分解，得到了各组分的荧光光谱图及各个反应平衡点各组分的相对浓度，平衡浓度的变化趋势也表明了铜络合物与中性红之间的竞争作用，进一步表明了铜络物与DNA的作用方式和中性红与DNA作用方式一样均为嵌插作用。

Deep research and comparison show that, besides the centrarch xylem, H. reflexa has G-type tracheids. Upon and between the annular secondary thickenings, the lignified layer of secondary cell wall bears irregular simple perforations of small diameter and high density. So these perforations have the characters of S-type tracheids. The robust xylem strand and dense perforations indicate the strengthened water-conducting capacity.

深入的研究和比较表明H.reflexa的木质部除为心始式外，管胞为G-型，次生壁的木质化层具有不规则的简单穿孔，穿孔直径小，密度大，分布在环纹次生加厚带和其间，兼有S-型管胞穿孔的特征；粗壮的木质部束和密集的穿孔表明较强的输导能力。

The aptitude and career interest were considered as the two dimension of the entrance guide system, and was proof-tested by the structural equation model, which results supported this two-dimension hypothesis. Accordingly, there were two parts in the guide system. One part was about the aptitude test, consisted of seven subtests: verbal reasoning, spatial imagining, mathematic reasoning, computer capacity, abstract reasoning, physical knowledge, and sentence recomposing. The other part was about the career interest test, including eight aspects: career longing, curriculum desire, entertainment after school, activity preference, job preference, work environment preference, self-estimate of one\'s abilities, and discuss future with someone else. After three times modification and testing, the psychometric indices of the guide system were become well and stable. Furthermore, the guide system was primarily launched into applying, with four typical case studies, the practicability and serviceability of the guide system was showed swiftly.The entrance guide system for junior high school students that was developed in this research was one-upping in the entrance guide field in China.

第二阶段是初中生升学指导系统的研制阶段，以能力倾向与生涯兴趣这二元因素作为初中生升学指导系统的基本架构，经验证性因素分析表明该二元架构是合理并可接受的；其中能力倾向部分共包含语言推理、空间想象、数学推理、电脑能力、抽象推理、物理知识、语句重组等七个分测验，生涯兴趣部分则包含生涯梦想、课程兴趣、课余爱好、活动偏好、工作内容喜好、工作场所喜好、能力自评、与他人讨论未来等八个方面；通过三次修改与测试，结果显示所研制的初中生升学指导系统有着良好的测量学指标；此外，通过对初中生升学指导系统的初步应用研究，并结合典型个案的深入剖析，进一步表明所研制的初中生升学指导系统具有实用性、操作性强的特点，所得结果也可靠可信。

The effect of transgenx Bt cotton on non-target insects The kinds of the dominant species of pests in transgenic cotton field had obvious change, in which the H. armigera was no longer the main pest and the piercing-sucking pests such as Aphis gossypii, Tetranychus urticae, Thrips tabaci etc. rose the main pests. The kinds of the dominant species of predatory natural enemies seemed to be no variation, which was still Propylaea japonica Thunberg. Because of the effect of transgenic Bt cotton on H. armigera laevae-the development delay, the weight reduction, which affected the qualities of parasitic enemies, leading to the reduction of the weight of cocoon and the weight of adult, and the reduction of H.

转Bt基因棉对节肢动物群落整体结构及时序变化的影响 2001保铃棉与冀抗668的相似系数最高(0.8246)，冀抗668、保铃棉与常规防治的相似系数依次0.6459、0.5829，保铃棉和冀抗668与常规不防治的相似系数为0.5669、0.4485.2002 年与冀杭668的相似系数最高(0 。6887)，保铃棉和冀抗668与常规防治相似系数为0.4739、 0.3828，保铃棉和冀抗668与常规不防治的相似系数为0.3124、0.3999，此结果表明，两转Bt 基因棉田节肢动物群落的整体结构一致，相似性较大，与常规防治相比，相似系数有所降低，表明常规功治棉田中人为控制因素对节肢动物有一定影响；转Bt基因棉对节肢动物群落有一定影响，但并不显著。

When we used those two multivariate statistic analytical techniques to study the spatio-temporal variation laws of benthic community structure at Shenzhen Bay, the results indicated that: 1 There was not obverse difference in intertidal benthic community structure between Futian, Shenzhen and MaPi, HongKong in Shenzhen Bay in Spring, 2000. However, there was continual gradient change in community structure from outer bay to inner bay. 2 There was obvious deference with the respect of benthic community structure between station C and stations Al, A2, A3 in transect A and station B in transect CBA in Shenzhen Bay. There being no benthos at station C in Summary, 2000, it indicated that station C had been polluted very heavily. 3 Deferent seasons and deferent tide sites are the most two important factors which play influence on benthic community structure at stations Al, A2, A3 and B3 in Shenzhen Bay.

用这两种多变量方法研究深圳湾底栖动物群落结构时空差异，结果表明(1)2000年春季深圳湾底栖动物群落结构组成在深圳福田一侧与香港米埔一侧并没有明显的差异，而是沿湾外向湾内呈现连续的梯度变化；(2)在深圳福田一侧的C断面的底栖动物群落结构与A、B断面有明显的差别，2000年夏季在C断面没有采到任何底栖动物，表明C断面已经遭受了严重的污染；(3)季节和潮区是影响深圳湾A1、A2、A3、B3站位底栖动物群落结构组成时空差异的两个最重要的因素。

Identification of extensive phenotypic information to 6 pare cultures and detection of the mol% G+C ratio of the DNA to representative strains, showed that the examined bacteria belonged to a new morphovar of Acinetobacter junii, and was designated as Acinetobacter junii Morphovar Ⅰ. In addition, serotype, antibiotic sensitivity and pathogenicity of isolates were studied, the results showed that the 6 strains have the same K-antigen and O-antigen, there arc no obvious differences in sensitivity and resistance to used 37 antimicrobial agents between strains, and have strong pathogenicity to experimental stone bonder and Bastard halibut.

经对6株纯培养菌在形态特征、理化特性等方面较系统的表观分类学指征鉴定及代表菌株DNA中G+C mol%的测定，表明为琼氏不动杆菌的一个新形态型并定名为琼氏不动杆菌形态型Ⅰ(Acinetobacter junii morphovar Ⅰ)；同时，对该菌进行了血清型、对抗菌类药物的敏感性及致病作用等方面的试验，初步表明此6株菌具有同种的表面及同种的菌体抗原，对供试37种抗菌类药物在不同菌株间的敏感及耐药无明显差异，对供试石鲽及牙鲆均具有较强的致病作用。

Its high-capacity and strong-acid-resistance were proved. In the acid condition, the adsorption efficiency to acide green 6B and direct fast yellow RL reached above 90%. Through the adsorption rate curve on adsorption behavior of the three dyes, they were all according with pseudo-secondary adsorption rate curve. The rate constant of adsorption increased with increasing temperature. Through the adsorption isotherm of the three dyes, acide green 6B and direct fast yellow RL were according with Langmuir equation, while disperse blue 56 was according with Freundlich equation. The adsorption behavior was an endothermic process. Entropy was increasing during the adsorption. So raising temperature was in favor of adsorption.

结果表明，甲醛环氧氯丙烷交联壳聚糖对染料具有较强的吸附性能和耐酸性能，在酸性条件下，对酸性绿6B和直接耐晒黄RL的吸附效率达90％以上；拟合甲醛环氧氯丙烷交联壳聚糖对三种染料的吸附速率曲线，发现该吸附行为符合拟二级吸附速率曲线，其吸附速率常数随温度的升高而增大；通过测定不同温度下甲醛环氧氯丙烷交联壳聚糖吸附三种染料的吸附等温线表明，甲醛环氧氯丙烷交联壳聚糖对酸性绿6B和直接耐晒黄RL的吸附符合Langmuir方程，而对分散蓝56的吸附符合Freundlich方程，甲醛环氧氯丙烷交联壳聚糖对染料的吸附是一个吸热过程，吸附后体系熵增加，升温有利于吸附。

The proposed robust road main direction detection method consists of initial main direction extraction based on the direction histogram of structure tensor and precise direction detection on vectorized edge image. Experiment results demonstrate its robustness and precise. The proposed Gibbs-sampling-based method models road network with marked point process and can effectively extract road network with initial configuration. However it is slow and still can not deal with single and isolated road segment. These problems can be solved by the real-time method. And experiments verify that the real-time method is fast during extracting road segment.

提出的稳健道路局部主方向提取算法以结构张量为基础，通过方向直方图确定大致主方向，并通过矢量化边缘进一步计算准确的方向角，实验结果表明具有良好的稳健性和准确性；提出的基于Gibbs采样的交互式道路网提取方法采用标记点过程对道路网进行建模，在给出初始构造项的情况下，能有效的提取出指定道路网；提出的实时交互式道路段提取算法弥补了上一方法无法处理单一直线道路段和计算过程慢的不足，是上一方法的有益补充，实验结果表明算法能快速提取道路段。

It mainly contains the following things. At first, I bring for the way of anchoring two cementing slabs next to by using dog irons made of iron bars and then cover the surface of the road using bituminous concrete. After analyzing the feasibility of this method by using the famous and popular use soft ware ASYS, the results show the magnitude of the temperature stresses on the limited mat coat of the road has nothing to do with the length of the concrete slabs after covering it with bituminous concrete. Meanwhile, the relative horizontal shifting, the flexural-tensile strain, and the vertical shearing stress of the slabs next to it becomes the least after anchoring them with dog irons made of iron. Therefore it proves that it really works to use this method to prevent and slow down the speed of the reflection cracks in the bituminous concrete skin coat over the old road.

首先，提出采用钢筋马钉锚固相邻水泥混凝土板后再进行沥青混凝土罩面的新方法；采用国际著名的通用有限元软件ANSYS对其可行性进行了分析，结果表明在有限尺寸的板上进行沥青混凝土罩面后，罩面结构的温度应力的大小与板的长度几乎没有关系，同时采用钢筋马钉锚固相邻旧水泥混凝土板后，可以明显地减小相邻板的相对水平位移、接缝处罩面层底部的弯拉应变和垂直剪应变，从而表明该法对防止或减缓旧水泥混凝土路面上沥青混凝土罩面层的反射裂缝是确实可行的。

The results show:(1) After soybean seed is treated with seed coating, The length of lateral root anlage Initiating area obviously increases in contrast with control (seed which is not coated with agent is regarded as control; shortened form is CK).The order is from greatness to smallness in turn as follow: HK＞ND＞CK.(2) Initiating progress of lateral root anlage is quickened when seed is treated with seed coating. General trend is as follow: HK＞ND＞CK. By variance analysis, treatment and control has obvious difference.(3) Initating status of lateral root anlage is definite related with contents of endogenous hormone. Occurring of lateral root is as the result of some endogenous hormone corresponded and playing manysided role, especially IAA plays important role in the cause of inducing to occurring of lateral root anlage.(4) The use of seed coating may elevate the number of lateral root anlage occurring and shorten the time of lateral root anlage occurring, especially the effect of Chemical control seed coating is better.

结果表明：(1)种衣剂包衣后，侧根原基发生区长度明显比对照(不包衣的种子为对照，用CK表示)增加，从大到小依次为：HK＞ND＞CK；(2)种衣剂处理加快了侧根原基的发生进程，总的趋势是HK＞ND＞CK，经F检验表明，处理和对照差异极显著；(3)侧根原基的发生状况与侧根原基发生区内源激素的含量有一定的关系，侧根的发生是几种植物内源激素相互协调、综合作用的结果，其中生长素类物质在诱导侧根原基的发生过程中起主导作用；(4)应用种衣剂可以提高侧根原基发生的数量，缩短侧根原基的发生时间，其中以化控种衣剂效果最好。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐