非有效的

However, if the amplitude excessed 90%, the mounts of larger bubble increase as the increasing time.

另外，选择惰性气体SF6作为微泡内气体，设计了基于两种非离子表面活性剂（Span 60和Tween 80）的包膜超声造影微泡的膜材料组成，使用声振法制备得到表面活性剂包膜的超声造影微泡；对制备过程中的声振条件进行优化，结果表明总体上振幅越大，处理时间越长，声振后溶液的总体积增加得越多，即产生的微泡量越大，并且平均粒径越小，但当声振幅度增大到90%时，随着声振时间的延长，主要增加的是大微泡的量，有效微泡的量无明显增加，因此最佳的声振条件选择为振幅90%，声振时间60s。

In the early research, HSV color space is considered to be uniform with human's vision model. Along with the analysis of HSV space, we find the uniform is limited and propose a new quantization method, which is more reasonable to human's vision model. Without decreasing the retrieval performance, the scheme non-uniformly quantizes the color space into 36 bins. Because the quantization result has only 36 bins, the computational complexity is decreased effectively while the performance increases. Relevance feedback is an interactive technique in the process of CBIR.

在以前的研究中，一直认为HSV色彩空间与人的视觉感知是一致的，本文通过对HSV色彩空间非等间隔量化的研究，发现这种一致是有限的，通过对HSV色彩空间的分析，本文对相似色区域的划分提出了从视觉上更合理的不等间隔的量化方法，使其更符合人的主观视觉模型，并且在不降低检索性能的前提下，使色彩量化为36种颜色，有效地降低了算法复杂度，提高了检索效率。

These problems include subsidiary manager"s near-sight behaviour and consigner-agent conflict in annual-salary plan, and examinee is department but not clerk in headquarter"s post salary system and so on.

针对上海长江轮船公司子公司经营者年薪制存在的造成经营者行为短期化、不能解决委托——代理矛盾等问题、总部岗位效能工资制存在的考核对象针对部门而非员工个人等问题，借鉴薪酬管理理论，参考国际企业和国内优秀航运企业薪酬管理制度，分析我国国内宏观政策环境，在进行充分可行性分析的基础上，研究制订了子公司经营者股份增值权计划、总部员工绩效薪酬考核体系的改进方案，以充分发挥薪酬的约束激励作用，激励经营者创造企业长期利益，使经营者的个人利益与企业的利益达成一致，提高员工在报酬分配上的公正感和满意感，从而有效调动公司经营者和员工的积极性，形成一支有创造力、竞争力的人才队伍，提高企业综合竞争能力，实现企业的可持续发展。

The method of obtaining time delay parameters with the reverse access channel is discussed. The modified algorithms of classic correlation methods of TOA estimation are proposed. Noncoherently combining algorithm and group coherent combining algorithm are given. They decrease the computational complexity and are more suitable for implementations in practical systems. The leading edge detection algorithm is proposed to mitigate the effect of multipath in TOA estimation. Then the secondary search method is proposed, it can solve the matching issue of PN code in CDMA systems. The location algorithms based on LS are discussed; include circular trilateration with LS, hyperbolic trilateration with reference differencing, hyperbolic trilateration with sequential differencing and circular trilateration with TOA differences. The design and implementation of wireless location system based on TOA/TDOA in CDMA2000 systems are given. The location process is discussed, and the hardware and software implementation of TOA estimation are given. Finally, the wireless location system which uses TOA estimation and LS location algorithms above is tested in the real environment.

文中讨论了采用CDMA2000反向链路中的接入信道来获取时延的方法和过程；对TOA估计的传统的相关法进行了改进，提出了非相干合并相关法和分组合并相关法，减少了基于相关的时延估计算法的运算量，提高了算法的实用性，对算法进行了仿真和性能分析；采用边缘检测技术有效减少了TOA参数估计中的多径干扰，提高了时延参数估计的准确度；提出了一种TOA估计的二次搜索法，解决了多个定位测量单元同时进行TOA估计的PN码匹配问题，进一步了提高TOA估计的精度；在采用时延值的定位算法中引入了基于LS的圆周法、基于参考差的双曲线法、基于相邻差的双曲线法和基于TDOA的圆周法，讨论了各算法的应用条件，进行了算法性能的仿真分析；给出了CDMA2000系统中的TOA/TDOA的无线定位的系统方案和实现流程，并对TOA值估计算法进行了软硬件实现，还对采用TOA估计算法、LS定位算法和定位系统设计方案实现的定位系统的进行了现场定位性能测试。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。