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The male's swimbladders increased faster than weight the than females. Morphology of the sciaenids can be grouped to two types. Type I including red drum: the ratio of sonic muscle and body weights is smaller, and the sonic muscles are tightly connected to the swimbladder. Type II including Pennahia argentata, Johnius tingi, Atrobucca nibe, Larimichthys polyactis, and Pennahia macrocephalus: the ratio of sonic muscle and body weights is larger, and the sonic muscles are loosely connected to the swimbladder by membrane tissue.

比较红鼓鱼和其他不同种类的石首鱼发声肌肉形态，发现可以分成二种：类型I即红鼓鱼，其发声肌肉重量较小，与泳鳔紧密连接；类型II即白姑鱼，丁氏叫姑鱼，黑，小黄鱼，大头白姑鱼的发声肌肉重量较大以膜状结缔组织连接而易於剥离。

Based on some related concepts of shock disturbed system, weakening buffer operators with variable weights and strengthening ones with variable weights are established respectively. This subject defines buffer operator regulation degree which reflects effect strength to original sequence caused by buffer operator, and also studie the relationship between buffer operator regulation degree and variable weight. Consequently, the monotonicity nonvariable axim of buffer operator is put forward.

基于冲击扰动系统的相关概念，提出了变权缓冲算子的概念，分别构造了变权弱化缓冲算子和变权强化缓冲算子，定义了缓冲算子调节度来反映缓冲算子对原始序列的作用强度，并研究了缓冲算子调节度与可变权重之间的关系，在此基础上提出了缓冲算子的单调性不变公理。

Objective:To produce low-sugar and high-moisture preserved pachyrhizus; Methods:The relationship of moisture and water activity, numbers of bacterial and mildew were researched. Then water activity was reduced by chitosans with different viscosity-average molecular weights; Results:The number of mildew was a major microbial index of quality-maintaining duration of product. The lower viscosity-average molecular weights of chitosans was, the more water activity reduced; Conclusion:When 9 kD molecular weight,...

目的：为生产低糖、高水分含量番薯果脯；方法：研究果脯中水分含量与水分活度的关系及细菌总数和霉菌数在保温试验中的变化，并采用不同黏均分子量的壳聚糖降低果脯的水分活度；结果：果脯中霉菌数是影响产品保质期的主要微生物指标，壳聚糖的黏均分子量越低，降低水分活度的幅度越大；结论：通过添加0.5%、9kD黏均分子量的壳聚糖，产品水分含量为20%、总糖为26%时，番薯果脯常温放置保值期达到12个月。

Time constants do not increase but the weights of the fittings concentration de pendently enhance as the external Ba2+ concentration augments. So the inac tivati on becomes faster and faster as the external Ba2+ concentration increases. Time constants decrease and the weights of the fittings concentration dependently enh ance as the external Ba2+ concentration augments when external Ba2+ concentratio n (10 or 100 μmol/L) is higher. So the inactivation becomes faster and faster. It is showed that Ba2+ can go deeper in IRK1-T from the surface of the ch annel a s external Ba2+ concentration increases.

三级指数拟合表明：细胞外Ba2+低浓度(1和3 μmol/L)时，Ba2+与K+相互竞争同一结合位点，随着Ba2+浓度的增加，时间常数不增加但拟合的权数却浓度依赖性增加，所以失活过程随Ba2+浓度的增加越来越快；细胞外Ba 2+高浓度(10和100 μmol/L)时，时间常数随Ba2+浓度的增加而减少，拟合的权数却浓度依赖性减少，失活过程也越来越快，说明Ba2+作用位点由通道的表面部位进入通道更深的地方。

Time constants do not increase but the weights of the fittings concentration de pendently enhance as the external Ba2+ concentration augments. So the inac tivati on becomes faster and faster as the external Ba2+ concentration increases. Time constants decrease and the weights of the fittings concentration dependently enh ance as the external Ba2+ concentration augments when external Ba2+ concentratio n (10 or 100 μmol/L) is higher. So the inactivation becomes faster and faster. It is showed that Ba2+ can go deeper in IRK1-T from the surface of the ch annel a s external Ba2+ concentration increases. CONCLUSION: Two diffe rent mechanisms for external Ba2+ blocking exist.

三级指数拟合表明：细胞外Ba2+低浓度(1和3 μmol/L)时，Ba2+与K+相互竞争同一结合位点，随着Ba2+浓度的增加，时间常数不增加但拟合的权数却浓度依赖性增加，所以失活过程随Ba2+浓度的增加越来越快；细胞外Ba2+高浓度(10和100 μmol/L)时，时间常数随Ba2+浓度的增加而减少，拟合的权数却浓度依赖性减少，失活过程也越来越快，说明Ba2+作用位点由通道的表面部位进入通道更深的地方。

Time constants do not increase but the weights of the fittings concentration de pendently enhance as the external Ba2+ concentration augments. So the inac tivati on becomes faster and faster as the external Ba2+ concentration increases. Time constants decrease and the weights of the fittings concentration dependently enh ance as the external Ba2+ concentration augments when external Ba2+ concentratio n (10 or 100 μmol/L) is higher. So the inactivation becomes faster and faster. It is showed that Ba2+ can go deeper in IRK1-T from the surface of the ch annel a s external Ba2+ concentration increases. CONCLUSION: Two diffe rent mechanisms for external Ba2+ blocking exist.

三级指数拟合表明：情绪细胞外Ba2+低浓度(1和3 μmol/L)时，Ba2+与K+相互竞争同一结合位点，随着Ba2+浓度的增加，时间常数不增加但拟合的权数却浓度依赖性增加，所以失活过程随Ba2+浓度的增加越来越快；情绪细胞外Ba2+高浓度(10和100 μmol/L)时，时间常数随Ba2+浓度的增加而减少，拟合的权数却浓度依赖性减少，失活过程也越来越快，说明Ba2+作用位点由通道的表面部位进入通道更深的地方。

The sound producing system of Sciaenidae is consisted mainly of extrinsic sonic muscle and swimbladder. Because female red drum do not have the sonic muscle, the sonic muscle of young red drum appeared when they were three months old and they were male. Young male red drum started to produce audiable sound at seven months old. The weights of sonic muscles and swimbladders increased with body weights.

石首鱼的发声系统以外接发声肌肉及泳鳔为主，由於雌鱼并无发声肌肉，因此红鼓鱼幼鱼在三个月左右出现发声肌肉者为雄鱼，发育的过程中，发声肌肉、泳鳔的重量随年龄增加而增加，然而雄鱼泳鳔的重量增加情形大於雌鱼。

In order to increase accuracy of the multiobjective weights assigning, a combination method that allots multiobjective weights is proposed.

为了提高多目标权系数赋值的准确性，本文提出多目标权系数的组合赋值方法。

Two algorithms breaks through the shortcoming of weighting value immobilizes in the traditional average filter algorithm, and it can characteristic adjust the weights from of data in the filter window, thus makes the weights from noise point is very small contributing to the output date.

两种算法突破了传统的均值算法中加权值固定不变的缺点，可以根据窗口内数据的特点来自适应的调整赋予每个采样点的权值，从而使受噪声污染的信号对输出的权值贡献非常小，而且通过对滤波因子的调整，使得对于脉冲噪声和高斯噪声均有良好的抑制作用。

Specimens were reared under different temperatures, photoperiods, and densities. Total weights of lacerates were used as an index of investment in asexual reproduction, whereas gonad weights as an index of investment in sexual reproduction.

为了解答这个疑惑，我们以美丽海葵（Aiptasia pulchella Carlgren 1943）为材料，以不同的环境变因：温度、光周期、海葵个体密度为处理，并以碎裂片数目、大小及湿重代表无性生殖的反应与投资，以生殖腺湿重代表有性生殖的投资，探讨海葵的有、无性生殖投资之间是否有补偿作用的现象。

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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。