Objective To explore the distribution of the concentrations of disinfection by-products ( DBPs) and its characteristics in drinking water.

Nitrate Removal Using Biodegradable Polymers ( DBPs) as Carbon Source and Biofilm Carrier of Denitrifying Microorganisms

利用可生物降解聚合物同时作为反硝化微生物的碳源和附着载体研究

Disinfection by-products ( DBPs), which have adverse effects on human health, are produced in drinking water disinfection process.

饮用水消毒过程中会产生一类对人体具有三致效应的消毒副产物（DBPs）。

Influence of Chloramine Disinfection on DBPs from Different Organics

氯胺消毒对不同有机物生成消毒副产物的影响

Controlling Chlorine DBPs Precursor by Combined Preoxidation with Ozone and Permanganate

臭氧/高锰酸盐复合预氧化控制氯化消毒副产物前质

Removal of Precursors of DBPs by Combined Process of Catalytic Ozonation and BAC

臭氧催化氧化与BAC联用控制氯化消毒副产物

To find nucleotide binding sites of DBPs by comparing the promoter sequences of insulin gene

利用序列比较寻找胰岛素基因表达启动区与DNA结合蛋白的结合位点

The analytical ways concerning DBPs of environmental toxicology;

DBPs的环境毒理分析方法；

Influence of Irrigation Pattern on DOC and Formation of DBPs Precursors in Soil

灌溉模式对土壤中DOC及DBPs前驱物形成的影响

DBPs Formation Characteristics in Chlorinating and Relationship with Chemical Structure of Some Aromatic Organic Matter

芳香类有机物生成氯化消毒副产物特性及其与化学结构的关系

Effect of By-products of Chlorination Drinking Water DBPs on Health

氯化消毒饮用水副产物DBPs对健康的影响

However, there are few studies focusing on organic matter removal in the SSF, especially for DBPs removal.

然而在探讨两种机制对于有机物去除之影响，相关研究甚少，尤其对于消毒副产物方面更为缺乏。

At present, enhanced coagulation is the best available technology to control DBPs.

强化混凝是目前控制消毒副产物的最佳可行性技术。

This dissertation designs a metadata consistency protocol according to the metadata placement policy and cache management in DCFS. This protocol ensures the consistency of metadata in a cluster file system and has acceptable cost. 4.

作者结合DCFS元数据分布策略和元数据缓存管理设计了元数据一致性协议，该协议保证了元数据一致性，分析表明其开销是可以接收的。

With the design and implementation of DCFS ( Dawning Cluster File System), this dissertation deeply discusses the key technologies of a cluster file system and studies problems in designing the servers of a cluster file system.

本文结合曙光机群文件系统DCFS的设计和实现，对机群文件系统设计的关键问题进行了讨论，并针对机群文件系统服务器设计的几个问题进行了研究。

Design and implement DCFS on the Dawning 4000L Cluster. Present methods to evaluate a cluster file system and define scalability of read/ write and metadata operations.

在曙光4000L上设计并实现曙光机群文件系统DCFS，给出了机群文件系统性能评价的方法，定义了读写带宽性能和元数据吞吐率的可扩展性度量。

Finally the helix double-clad fiber is discussed by using this method, and the conclusion is that it is better than other truncated inner cladding DCFs.

最后用这种方法对螺旋型双包层光纤进行分析，得出它比一般缺陷型双包层光纤优异的结论。

Load-Balance Policy in DCFS, the Dawning Cluster Filesystem

曙光机群文件系统DCFS负载平衡策略

The metadata throughput of DCFS is 7.391 times as PVFS on average.

DCFS元数据吞吐率的性能平均比PVFS高6.391倍；

And the overall response time of DCFS is 18.2% as PVFS in the synthesis workload experiment.

DCFS在综合负载测试中表现出比PVFS更好的性能，全局响应时间为PVFS的18.2%。

Comparison between MOPB04_ 600 and 455,972 sequences from GenBank+ EMBL+ DDBJ+ PPB revealed that the homology were low ( less than 30%). This implied that it was a newly found DNA sequence.

通过与GenBank+EMBL+DDBJ+PDB中的455972个序列进行同源性比较，同源性均小于30%，表明该片段为一新发现的序列。