查询词典 NP

How to allocate rates in order to maximize the system utility is an NP problem, which involves the joint optimization of rate allocation and decoding order adjustment.

如何分配速率使得系统效用最大化是一个NP问题，这涉及到速率分配与译码顺序调整的联合优化。

In the CDMA cellular system based on SIC, the numbers of possible rate modes and decoding orders grow exponentially with the number of users. How to efficiently allocate rates is an NP problem, which involves the joint optimization of rate allocation and decoding order adjustment.

在基于SIC的CDMA蜂窝系统中，可能的速率模式与译码顺序随着用户数的增长而指数增长，如何有效地分配用户速率是一NP问题，需要考虑速率分配与译码顺序调整的联合优化。

The probing behaviors of the tea green leafhopper, Empoasca vitis Gothe, on nine tea cultivars were studied by videotext Direct Current-Electrical Penetration Graph, i. e. DC-EPG. Following seven types of waveforms produced by the leafhopper stylet probing were determined: A, stylet pathway formation; S, salivation when stylets pierce into and stay in phloem; C, active ingestion before stylets reach phloem; E and F, passive ingestion in phloem; R, the insect resting with its stylet inserted into the leaf tissue and NP, not probing.

应用可视DC-EPG方法研究了假眼小绿叶蝉在9个品种茶苗上的口针刺探行为，共发现并初步确定了7种主要波型，即A波、S波、C波、E波、F波和R波、以及非刺探波NP波。A波为刺探波，S波为口针向韧皮部刺探和进入韧皮部中的分泌唾液波，C波为口针到达韧皮部之前的主动取食波，E波和F波为口针在韧皮部中吸收波，R波为取食间歇波。

In Chapter 6, we prove that the problem of mining association rules is NP-hard, and propose a mining algorithm based on reduced trie tree. The tree is expected to contain only the nodes corresponding to frequent item sets.

在本文第六章中，我们证明了挖掘关联规则的NP困难性，并提出了一个基于精简trie树结构的算法，主要思想是只生成对挖掘有用的项目集所对应的树。

The adsorption isotherm for Witconol NP-100 on thiram and carbofuran was of the Langmuir type.

结果表明Witconol NP-100吸附等温线为Langmuir型。

To examine the effect of surfactant adsorption on physical stability of flowable concentrates used for coating seeds with pesticides, high performance liquid chromatography was used to analyze the adsorption of a surfactant (the nonylphenol ether, Witconol NP-100) on thiram and carbofuran particles.

采用高效液相色谱仪研究了水悬浮液中烷基酚聚氧乙烯醚(Witconol NP-100)在福美双和克百威两种农药颗粒表面的吸附性能，并探讨了表面活性剂在农药颗粒表面的吸附对悬浮种衣剂的物理稳定性的影响。

On the Total Flow-Time Problem of Two Machine Open-Shop;2. The total flow-time problem of two machine open-shop is NP-hard.

二台机器自由作业总流程问题是NP-困难的，对于加工时间仅依赖于机器的情形在不允许机器空闲的条件下存在显式解。

It is owing to the different scannings related to the same event or situation that the same syntactic structure "npi +v+np" symbolizes different semantic structures.

由于对同一事态的扫描方式不同，同一个工具主语句&npi +v+np&可以象征不同的语义结构。

aim: to observe the effect and toxicity of na and np regimens for advanced breast cancer.

目的：评价na、np两种化疗方案治疗晚期乳腺癌的疗效及毒副反应。

According to the sequence of rabbit defensin NP-1 and porcine defensin pBD-1 gene published in GenBank,We selected respectively prokaryon or eukaryotic expression vector to construct recombinant expression plasmid hoping for getting expression protein in E.coli or COS-7 cells, All these laid down a foundation in research of these two antibacterial peptides.

本文主要根据GenBank已公布的兔防御素NP-1基因和猪防御素pBD-1基因序列，分别选用原核或真核高效表达载体构建重组表达质粒，以期在大肠杆菌或COS-7细胞中得到高效表达，为进一步研究这两个抗菌肽奠定基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。