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With Yangtze delta tidal flat as an example, through the analysis on the magnetic characteristics of tidal flat sediment and the study on the space distribution of heavy metal elements, this thesis discussed the impact to Shanghai sea bank brought by heavy intensity development, and the interrelation between sediment power effect and heavy metal pollution space distribution. Utilizing the advantage of artificial intelligence neural network, in conjunction with environmental chemical analysis, from the angle of view of sediment magnetic characteristics, it analyzed the connection mechanism between magnetic mines and heavy metal element within tidal sediments, and built a quantitative magnetical diagnosis model, in attempt to calculating the tidal heavy metal pollution status from the magnetic measurement data of sediments and assess it's impact to the environment.

中文题名长江口潮滩重金属污染的磁诊断模型研究副题名外文题名论文作者许羽导师俞立中教授学科专业自然地理学研究领域\研究方向资源与环境信息系统学位级别博士学位授予单位华东师范大学学位授予日期2001 论文页码总数111页关键词长江口潮滩沉积物环境磁学重金属污染馆藏号BSLW /2001 /X145 /11 本文以长江口南岸潮滩为例，通过对潮滩沉积物磁性特征的分析、重金属元素空间分布的研究，探讨了上海滨岸带高强度开发对潮滩环境质量的影响，以及沉积动力作用与重金属污染空间分布格局的联系。

In practice, each sensor may have different observation dimension; that is to say, each sensor may make use of different model to observe the same target. In order to solve the above problem, by mapping among the state spaces, a nonequal dimension MAP estimate fusion algorithm between the output target estimate state and feedback is presented in this paper. Computer simulations show the effect of algorithm.

在实际中各传感器的观测信息维数不一致，也即各传感器可能采用不同的模型观测同一目标；为解决上述问题，通过建立状态映射，提出了输出目标估计状态之间维数不同情况下的带反馈极大验后估计融合方法，并通过计算机仿真验证了该算法的有效性。

Interestingly, the hsp70 message is only patchily induced within the ischemic core but is markedly induced in neurons of the penumbra at 4 to 24 hours.

有趣的是，hsp70信息在缺血核心部位仅是被不规则地导入了，却在4到24小时内明显地被导入了半暗带的神经元。

Interestingly, the hsp70 message is only patchily induce d within the ischemic core but is markedly induce d in neurons of the penumbra at 4 to 24 hours.

有趣的是，hsp70信息在缺血核心部位仅是被不规则地导入了，却在4到24小时内明显地被导入了半暗带的神经元。

Inter-estingly, the hsp70 message is only patchily induced within the ischemic core but is mark-edly induced in neurons of the penumbra at 4 to 24 hours.

有趣的是，hsp70信息在缺血核心部位仅是被不规则地导入了，却在4到24小时内明显地被导入了半暗带的神经元。

Interestingly, the hsp70 message is only patchily induced within the ischemic core but is markedly induced in neurons of the penumbra at 4 to 24 hour s.

有趣的是，hsp70信息在缺血核心部位仅是被不规则地导入了，却在4到24小时内明显地被导入了半暗带的神经元。

Bacterial diversity of sediment in shrimp pond was analyzed by using PCR-DGGE technique, the Shannon-wiener index is 3.4971, the Richness is 41 and the Evenness is 0.94171; 17 dominant bands were excised from DGGE profile of surface sediment bacteria in shrimp pond and the V3 region of 16S rRNA gene was cloned and sequenced followed by phylogenetical analysis.

对虾池表层沉积物细菌多样性进行分析，得出该沉积环境细菌多样性指数为3.4971，丰度为41，均匀度指数为0.94171；对DGGE图谱上的特征条带进行切割回收和克隆测序后得到了优势菌的信息。

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Salt 8 exhibits an ICT absorption band at lmax572 nm in ethanol, which does not correspond to any of the TTF or pyridinium moieties, and obeys the Beer–Lambert law.

盐 8展品的信息和通信技术的吸收带在572 nm的lmax 乙醇，这不符合任何信托基金或吡啶基，并服从啤酒兰伯特法。

This includes but is not restricted to copying information from other students' exams, communicating with other students during exams, failing to follow the rules of the exams regarding notes, calculators, etc., altering an exam for the purpose of a regrade, and producing fraudulent written excuses.

舞弊行为包括：抄袭他人试卷，考试时与他人交换信息，不遵守考场关於？带笔记、计算器等规则，修改试卷以要求重新评分，出示虚假书面理由等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。