WPCs

However , poor creep properties seriously affected and restricted the development of the application of WPCs .

然而，抗蠕变性能差严重影响和制约了WPCs的拓展应用。

Secondly , with the distance evaluation technique , the optimal features are obtained from the statistical characteristics of original signals and WPCs .

其次，通过距离评估技术从原始信号和小波包系数的统计特征中选取最优特征集。

With the increasing of the content and length of wood fibers the moisture absorption of WPCs increased while the mechanical properties decreased .

随着木纤维含量的增加和长度的增大，WPCs的吸水率增加，力学性能降低。

And the development and industrialization of WPCs with agricultural waste as raw material has opened up a new application areas for the rich agricultural resources .

以农业废弃物为主要原料的木塑复合材料的开发与工业化利用，为丰富的农业资源开辟了一个新的应用领域。

The WPCS pre-assigns the wavelength at the forward detection phase , and schedules the potential collision by priority .

WPCS机制在前向探测阶段预分配波长，并通过优先级调度潜在的冲突。

The Well-Proportioned Coverage Strategy ( WPCS ) is presented which extends the lifetime of sensor network by minimizing the overlap area .

WPCS覆盖策略以最小化重叠面积为准则，其目的是最大化网络生存时间。

A novel wavelength assignment scheme called the wavelength pre-assignment collision schedule ( WPCS ) is proposed for wavelength-routed networks .

本文提出了一种波长路由光网络的波长分配机制，称作WPCS（波长预分配冲突调度机制）。

For the traditional relay protection and security automatic control cannot meet the requirements of these new circumstances , wide-area protection and control system ( WPCS ) becomes the research focus .

仅基于单点信息的传统继电保护与安全稳定控制无法适应电网的新发展，广域保护与控制成为了研究的热点。

WPCs is a kind of the high performance , and high value-added environmental protection material , and WPCs plays an important role in protecting the environment and saving energy .

它是新型的高性能、高附加值环保材料，在环境保护和节约能源等方面发挥了重要的作用。

Then the effect of surface modification of wood fibers , weight fraction of compatibilizer , composition of matrix and moisture content of wood fibers on the aging properties of WPCs were analyzed .

在此基础上研究了木纤维的表面处理方法、相容剂的用量、基体组成以及木粉的含水率对WPCs老化性能的影响。

The surface properties and microstructure of WPCs were characterized and analyzed by infrared spectroscopy and scanning electron microscopy ( SEM ) . The aging mechanism of WPCs was preliminarily explored .

通过红外光谱分析和扫描电子显微镜（SEM）对WPCs的表面状态和微观结构进行了表征和分析，初步探索了WPCs的老化机理。

Coupling treatment ( KH550 ) of wood fibers was the best way to improve the aging properties of WPCs among the three methods of maleic anhydride treatment , silane coupling treatment and titanate coupling treatment .

在马来酸酐、硅烷偶联剂和钛酸酯偶联剂这三种表面处理方法中，KH550改善老化性能的效果最好。

WPCs is a new-type circumstance-health compound that taking wood powder , bamboo powder , crop straw stalk powder and plastic resin or scrap plastic as primary material , then these materials are mixed together in high temperature .

木塑复合材料（WPC）是利用木粉、竹粉或农作物秸秆粉和塑料树脂或废旧塑料为主要原料，经高温混合、成型加工而制得的一种新型环保复合材料。

The results showed that methyl methacrylate treatment , silane coupling treatment and maleic anhydride treatment methods could all lower the moisture absorption of WPCs effectively so that the decreasing range of tensile strength and impact toughness was less than that of the untreated WPCs .

结果表明：甲基丙烯酸甲酯、硅烷偶联剂和马来酸酐三种表面处理方法均能有效降低WPCs的吸水性，使WPCs的拉伸强度和冲击韧性的下降幅度均小于未处理的WPCs。