小种

Three methods of image enhancement based on wavelet transform and their respective principles are presented and analyzed comprehensively. Using these three methods to enhance a radiographic NDP image respectively, we can see the differences of them by comparing the results.

文中介绍了3 种基于小波变换的射线图像增强方法及其原理，分别应用这3 种增强方法对一幅射线无损检测的图像进行了增强处理，对实验结果数据进行对比分析，说明它们在图像增强效果上的差异。

Nematicidal Activity to Different Nematodes of Basidiomycetes from Shenyang CHEN Li-jie, ZHANG Guo-dong, DUAN Yu-xi, LIU Bin, WANG Yuan-yuan (Plant Nematology Laboratory, Shenyang Agricultural University, Shenyang 110161, China) Abstract: The 94 kinds wild macro-fungi of Basidiomycetes were collected from the east of Shenyang around mountains and Shenyang Agricultural University, China. The nematicidal activity of extraction for the fungi were tested with 5 speceies of nematode, including Heterodera glycines, Meloidogyne incognita, Ditylenchus destructor, Aphelenchoides basseyi and Caenarhabditis sp..

沈阳地区大型真菌对不同种类线虫的毒力陈立杰，张国栋，段玉玺，刘彬，王媛媛(沈阳农业大学植物保护学院线虫学研究室，沈阳 110161)摘要：从沈阳市东部山区及沈阳农业大学周边环境采集到94种野生大型真菌，并将采集到的大型真菌制成浸提液，以胞囊线虫、根结线虫、腐烂茎线虫、水稻干尖线虫和小杆线虫为靶标，初步测定了大型野生真菌对5种不同种类线虫的活性作用。

The computation work is decreased greatly with the presented method. The method can be applied to the models with nonlinear trend in demand and the conclusion comes to the same―the model 4 is the optimal.

且这种方法可直接用于非线性增长需求模型，建立同样的4种模型，比较得出和线性增长需求情况下一样的结论，即第4种模型费用最小。

In view of special applications of multi-pole magnetic permanent torque motor used for precise numerical control rotary table, motors with higher torque density and lower torque ripple s are needed.

针对精密数控转台伺服直接驱动用多极永磁力矩电机的特殊应用问题(要求电机有较大的转矩密度且较小的转矩波动)，在分析该种电机的特殊结构的基础上，提出一种新型不等齿顶宽结构，以提高绕组利用系数，加大电机的转矩密度；并采用转子斜极的方法，可在有效消除转矩波动的同时，电机仍保持较高的绕组利用系数。

In view of special applications of multi-pole magnetic permanent torque motor used for precise numerical control rotary table, motors with higher torque density and lower torque ripples are needed.

针对精密数控转台伺服直接驱动用多极永磁力矩电机的特殊应用问题(要求电机有较大的转矩密度且较小的转矩波动)，在分析该种电机的特殊结构的基础上，提出一种新型不等齿顶宽结构，以提高绕组利用系数，加大电机的转矩密度；并采用转子斜极的方法，可在有效消除转矩波动的同时，电机仍保持较高的绕组利用系数。

The results indicate that different approaches and product strategies have little effect on the estimates, but the partially constrained approach and the unconstrained approach (except for the one-pair strategy) produce fewer fully proper solutions, more bias and greater root mean square error for smaller sample sizes or poor reliability of the indicators.

结果显示，四种方法与交乘项策略对估计影响不大，但部分限制式方法於三种配对组合、未限制式方法於两两配对与所有配对组合，在适当解比率与参数估计评估表现皆较其他组合差，以小样本或外生潜在变项负载量低时尤为明显。

KM strain mice immunosuppressed with 7. 5～10mg/L DEX in drinking water had the higher oocysts output and fewer dead than other groups.(4) There was no significant difference infection rate between groups inoculated with different number CSO and groups inoculated CSO with conserved different time. Trial were divided into control, groups of 50mg/kg /d, 100 mg/kg /d and 200 mg/kg /d dose of the drug to study the anticryptosporidial activities of nitazoxanide in an immunosuppressed mice model. The experimental results showed the treatment with 200mg/kg bw /day was significant inhibition of oocyst excretion. To detect the two cryptosporidiums strain C.

实验结果表明：C.parvum虫种能够感染上本实验所采用的BALB／c和昆明小白鼠两种小鼠，而C.andersoni没有能够感染本次实验小鼠；且从小鼠感染后的排卵囊量和小鼠的生存状态来看，采用5～6周龄的KM鼠能获得最大量的隐孢子虫卵囊，小鼠的死亡数最少；每升饮水中地塞米松量为7.5mg～10mg组比12.5mg以上组小鼠死亡数量少，比5mg／L以下组排卵囊数量多；接种不同卵囊数和卵囊的保存时间这两个参数均对小鼠受感染后的排卵囊情况影响不大。

Through S-wave polarization scanning mode of ultrasonic impulse testing, rock samples with three different properties are measured to evaluate the variation of S-wave velocity in three perpendicular coordinates. By analyzing S-wave splitting of three directions and polarization of the maximum or minimum speed S-wave amplitudes, we think that the velocity orthotropy and fracture orientation observed in the grain sandstones and crack marble samples can be estimated in terms of the polarization and velocity of S-wave. Also, perpendicularity characteristics on the two types of rocks can attribute to the bedding and structure of rocks (directional grains or crystallize).

在实验室通过选择了三种不同岩性的岩石，采用超声脉冲测试方法中的横波偏振扫描方式，观测了岩石样品三个坐标方向上的横波速度变化，通过分析三个传播方向上出现横波分裂的差异，以及出现最大或最小快慢横波振幅的偏振方向发现，可从横波偏振方向和速度值判断出纹理砂岩和裂隙大理岩样品存在不同程度的速度正交各向异性和裂隙方向等特征，认为这两种岩石的正交特性的原因是岩石的层理或裂隙与岩石本身的结构构成的。

However, the outage probability of the second method is better than that of the first one.

然而，第二种方法比第一种有更小的中断机率。

As well, ACA outperforms GA in performance on average. 2. Through the analysis and studying of Ant colony algorithm and Flow shop scheduling problem, a construction graph is introduced. Two ant colony algorithms are proposed and analyzed for solving the flow shop scheduling problem with the objective of minimizing the flowtime. The Initialization of parameters and updating of trail intensities and probability is described respectively and a newly local search technique is proposed. Last is the experiment and the comparison shows that the PACA performs better than the FACA in the case of relatively large-sized problems than in the case of relatively small-sized problems.

通过对基本蚁群算法的实现过程和流水调度问题进行研究，给出了求解流水调度问题的解构造图，提出了两种蚁群算法来求解以总流程时间最小为目标的流水调度问题-FACA 蚁群算法和PACA 蚁群算法，分别给出了FACA 蚁群算法和PACA 蚁群算法的参数初始化方式、相对应的信息素更新方法和概率分布规则，并提出了局部搜索模式，最后进行模拟试验，对这两种算法进行比较，试验结果表明：对于较大规模的问题，PACA 蚁群算法要优于FACA 蚁群算法，而对于较小规模的问题，FACA 蚁群算法优于PACA蚁群算法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。