浅谈变异修辞的解码

变异修辞拉大了辞面和辞里的距离，创造了广阔的语义空间，具有不确定性和模糊性，受话人在进行解码时，必须根据辞面运用联想才能揭示出所蕴含的深层含义。     

中年自损话防范

中年人处于成果最多阶级,是事业的黄金时期。也是机体由盛转衰时期。为了使他们能发挥更大的作用,做好中年的自损保健预防工作,是我国当前一项非常重要的有现实意义的工作。     

Modeling of Normal Perforation of Reinforced Concrete Slabs by a Rigid Projectile

An analytical model on the normal perforation of reinforced concrete slabs is constructed. The effect of reinforcing bars is further hybridized in a general three-stage model consisting of initial cratering, tunnelling and shear plugging. Besides three dimensionless numbers, i. e. , the impact function /, the geometry function of projectile N and the dimensionless thickness of concrete target X, which are employed to predict the ballistic performance of perforation of concrete slabs, the reinforcement ratioρs of concrete and the tensile strength fs of reinforcing bars are considered as the other main factors influencing the perforation process. Simpler solutions of ballistic performances of normal perforation of reinforced concrete slabs are formulated. Theoretical predictions agree well with individual published experimental data.     

Effects of light and temperature conditions on flowering in Mat Rush

The effects of photoperiod and light intensity on flowering in Mat Rush cv. Gangshan 3 were studied. The results showed that treatments with longer day length stimulated flowering significantly and increased stem flowering percentage (SFP). Plants treated with low light intensity at early stage had substantially reduced florets per cyme, SFP, tillers per plant and stem length. At middle and late stage, low light intensity significantly reduced SFP. The principal climatic factors affecting SFP were as follows: mean temperatures (MT) of the third ten-day period (TDP) in December and of the second TDP in February, actual sunlight hours (SH) of the third TDP in February and precipitation of the third TDP in March. A nonlinear simulation model for SFP was established with experimental results and corresponding climatic data (see Eq. (2)). Simulation by the above equation yielded values the same as those observed from 1992 to 2000, indicating its accuracy in describing the relationship between flowering and light and temperature conditions. The interaction between vernalization and SH is also discussed in this paper. Project (No. 981105) supported by the Ningbo City Science Foundation, China     

在改革创新中实现我国职业教育的科学发展

针对目前我国职业教育存在的问题,应从富民、强国、提升国民素质的角度充分认识职业教育改革和发展的重要性,把职业教育作为我国教育发展的重点。面向经济社会发展要求,职业教育改革创新应当以制度为保障,提高职业教育管理水平;以质量为核心,完善职业教育体系;以改革为动力,增强职业教育的办学活力,实现我国职业教育的科学发展。     

南阳市园林植物灯下昆虫群落结构分析

通过对南阳市园林绿地植物7~8月份诱虫灯下昆虫群落的调查,摸清了其常见的昆虫种类,结果表明：园林绿地植物灯下昆虫群落包括5个目,21科,50种;其中有害虫45种,害虫天敌4种和杂食性昆虫1种.同时,根据害虫的发生数量及对园林绿地植物的危害程度,从群落的角度分析了园林绿地植物害虫的优势种（类）,主要有暗黑鳃金龟、淡剑夜蛾、茶长卷蛾、斜纹夜蛾、土蝽等;从生态功能分类的角度把这些绿地害虫分为植食性昆虫、肉食性昆虫、传粉昆虫、杂食性昆虫4大类,其中这些害虫主要来自于鳞翅目、同翅目、直翅目、鞘翅目、半翅目五个目,为园林绿地植物在群落水平上进行综合治理提供了理论依据.     

一种认知无线电自适应双门限能量检测算法

针对传统频谱感知方法易受噪声波动影响的缺点,提出了一种认知无线电自适应双门限能量检测算法.该算法基于双门限能量检测,通过比较认知用户接收的能量值和预定义的门限值,判断当前信道状态并自适应地选择一轮感知或两轮感知.推导了所提算法的检测概率、虚检概率和感知时间的性能表达式,并采用蒙特卡洛仿真得到信噪比与检测概率、感知时间的...     

分簇无线传感器网络中提高网络连通性的协作算法

针对分簇无线传感器网络提出了一种基于虚拟天线阵列的协作算法.该算法通过节点间的协作来提高网络连通性,所有节点均按照泊松Voronoj网格模型进行分簇,簇首根据通信链路决定是否激活节点协作;若节点协作算法被激活,簇首从其成员中选择适合的节点作为协作节点共同组成虚拟天线阵列.通过协作,可扩展簇间的通信范围从而与远方节点直接...     

基于构造-剪枝混合优化RBF网络的煤灰熔点预测方法

为提高煤灰熔点的预测精度,提出了一种基于构造-剪枝混合优化RBF网络的煤灰熔点预测方法.该方法融合了神经网络构造算法和剪枝算法的优点,分为“粗调”和“精调”2个阶段.粗调阶段动态增加隐节点数目直至满足相应的停止准则;精调阶段对粗调得到的RBF网络的结构和参数作进一步调整.基于煤灰的化学组成成分建立相应的构造-剪枝混合优...     

Hopf拟群上扭曲冲积

为了研究平行球面s7的代数结构,引进了Hopf拟群上的拟模和双拟模代数的概念,由于这些概念的公理中模缺少结合性的条件,通过增加对极的条件来弥补结合性的条件.并通过双拟模代数构造了扭曲冲积的概念,事实上这种扭曲冲积是Hopf代数上扭曲冲积的推广,并且证明了扭曲冲积与张量余积成为Hopf拟群的充要条件为当且仅当下列条件(h...