多值性

The paralytic shellfish poisoning toxicity levels of shellfish from alongshore sea area of the Guangxi province later years, determined with both Mouse Bioassay and HPLC.

通过对近年来广西近岸海域贝类样品的麻痹性贝毒素小白鼠生物法和高效液相色谱法检测结果的分析，表明广西近岸海域多处地区和多种生物含有麻痹性贝毒素；4-5 月及7-11月为两个毒性值的年高峰期；GTX4、GTX5和GTX3毒素成分的检出率较高等。

There is mutual contradiction between direction estimation of user's signal and power allocation among all users in the beamforming algorithm. A twice game beamforming algorithm based on game theory is proposed to deal with it. Beamforming game algorithm mathematics model is constructed. During the first game, direction of signal and power allocation are mapped the game theory as "player", which are modeled as the problem of maximin function and obtain direction estimation first. Then during the second game, power allocations of different users are described as a multi-user game. Power updated algorithm is designed. The existence and uniqueness of the Nash equilibrium in the twice game beamforming algorithm based on game theory are proved by mathematics derivation.

摘要针对波束成形算法中，用户的信号方向估计值和用户之间的功率分配存在着相互矛盾，本文提出了一种基于博弈论的二次博弈波束成形算法，构建了波束成形博弈算法数学模型，首先在第一次博弈的时候，将波束成形算法中的信号方向和功率分配映射为博弈论数学模型中的"局中人"，将其建模为函数的极大极小值求解问题，先求解出信号方向；然后在第二次博弈的时候，将不同用户的功率分配过程描述为一个多用户的博弈过程，设计了功率分配更新算法，通过数学推导论证了纳什平衡点的存在性和唯一性。

In granularity characteristic of sediment, after typhoon attacking, beach sediment incline to coarse, gravel content added, but part beach sediment show fine, sediment sorting becomes worse, skewness value minished, skewness changes to negative skewness direction, kurtosis value increased, the curves of sediment frequency distributing display double apices.

在沉积物粒度特征上，风后海滩沉积物以粗化现象为主，砾石含量增加，部分海滩沉积物出现细化现象，沉积物分选性变差，偏态值减小，偏态向负偏方向变化，峰态值增加，风后沉积物频率分布曲线多双峰分布。

This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.

本论文研究胶粒的非平衡不可逆聚集动态学，分为两个部分，第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中，聚集标度性质的普适性，即使用透射电子显微技术观测聚集粒子簇的分形结构，使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学，胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态，当加入电解质NaCl溶液时，碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短，从而降低静电排斥能垒，引起胶粒发生不可逆聚集，加入电解质NaCl的浓度为1.00mol/l时，碱式碳酸钇胶粒进行快速聚集，经历扩散控制聚集机理，形成结构疏松、更为开放的分形聚集粒子簇，其分形维数为1.82，碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律，与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致，表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的，首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数，并且其值与Smoluchowski聚集速率理论预期相符。

Based on the cultivar comparative test carried out in 1998—2003,"Chanong NO.1" sprouted very early in spring and the sprouting values were 0.39~0.96 higher than the control cultivar Wannong95, and 0.35~0.57 higher than Fuding -dabaicha .The content of tea chemic material was abundant in fresh leaves and the contents of tea polyphenols, caffeine, amino acids, polysaccharides and resoluble material were 28.22%, 4.81%, 1.51%, 1.55% and 44.82%. Moreover, their ratios were harmonious, resulted in its excellent quality of the made green tea especially in the aspects of aroma and taste."Chanong NO.1" was strong in cold resistance, especially during the spring frost season.

经1998—2003年品种比较实验，结果表明：该品系春季萌发期特早，与对照皖农95相比，同期萌展值大0.39~0.96，与福鼎大白茶相比，同期萌展值大0.35~0.57；鲜叶中生化成分含量丰富，其中多酚含量28.22%、氨基酸含量1.51%，咖啡碱含量4.81%，水浸出物含量44.82%，茶多糖含量1.55%；各成分比例协调，绿茶品质佳，尤以香气和滋味表现突出；抗寒性强，对倒春寒的抗性也强。

As one example, the assignment operator is right associative. This fact allows concatenated assignments

其中之一使用了赋值操作的右结合性，这个特性允许将多个赋值操作串接起来

Getting the spatial information of status, function and change, we have to develop and analysis spatial data with empirical models and process models. Spatial interpolation methods were used to estimate the characteristics of population from samples. Generally, the information are belong to bioecological information of EM. Huei-Sun Forest Experimental Station of NCHU is the study area in the study.

导出多层级间的相容性推估模式，并应用由上层族群分层取样，以得下层样本的技术且由下层之样本性态值分布，往上层推估族群之性态值分布，并以预测技术及Kriging 等空间推估方法，配合假设情境解生物生态、社会经济况改变或人为干扰时，对森生态系的况与产出所造成的影响，以提供森生态系经营管所需的生物、生态资讯。

BIAN Zhi-hua,ZHANG Li-jie,JING Feng,YU Mei-wanAbstract: The fissure of soft rock of Mesozoic era and Cenozoic era isn't developmental normally. But there exist many pores in this rock and the cementation intensity of this rock is very low. Easy disturbance is notable. Mechanics parameters are valued after rebating test result of rock block. It makes mechanics index of weak foundation to be greatly lower than actual value.

中-新生代软岩一般裂隙不发育，但孔隙多且胶结强度低，易扰动性显著，其岩块试验成果折减后进行岩体力学参数取值，普遍造成软弱地基力学指标远低于实际值，是目前工程界面临的一大困惑。

The behavioral audiograms and multi-channel auditory steady-state responses ere performed at carrier frequencies of 500, 1000, 2000 and 4000 Hz for each ear.

研究对象与方法：自2003年5月至2004年2月间，共50位成年人，仅限感觉神经性听力障碍，均接受纯音听力检查和多稳定状态听性诱发反应检查，测试500Hz、1000Hz、2000Hz、4000Hz等四个常用频率的阈值，并记录检查时间，比较两种听力阈值。

Inwheat intercropped with soybean not only N situation could be improved butalso P situation could be.2In intercropping,the pH of soybean rhizospherewas decreased by increasing the R-Apase activity,which could decelerate thetransforming and fixing P fertilizer.3In both monoculture and intercroppingsystem,the soil pH of rhizosphere was affected by cropping system at two Plevel which only 0.1-4mm distance from the root surface,but the effect of S-Apase activity in the rhizospher soil by cropping system was less than3mm.In effect,the rhizosphere P was really available nutrient,and applyingP to rhizosphere was effective ways to reduce the P nutrient competition.4Inwheat/soybean intercropping,the peak stage of reduction ability of roots wasthe same as that of the root growth,so that the time compensation appearedin intensity of nutrient absorption.

间套作大豆、小麦、玉米根系Apase的差异又反映出大豆利用土壤磷的潜在能力最大，而玉米最小，可见禾谷类的小麦与大豆间套后不但能改善小麦的氮素营养状况还使磷素营养也得以好转。2）间套大豆根际pH值的下降，导致磷肥施入土壤后形成〓-P的比例显著提高，转化成〓-P等难溶性磷减少，说明间套的大豆能减缓肥料磷在土壤中的转化和固定，减少磷素向无效化方向转化。3）复合群体根际土壤pH值的影响一般只发生在0.1-4mm的根际微区，而土壤磷酸酶的影响供磷与否在距根表3mm以外都无多大差异，说明根际磷才是真正有效磷，根际施磷是解决磷素竞争的有效途径。4）。

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