日本农业女性参与农业及农村发展的现状与分析

日本农业就业人口的半数以上是女性,女性在担负着操持家务、育儿和赡养老人的同时,在农业经营以及农村第二、第三产业方面发挥着重要的作用。而且近年来涌现在农产品加工、销售、流通、观光农园、农家饭庄等与"食"文化相关领域的农村女性呈增长态势,对区域农业的多元化发展和农村的活化方面做出了积极的贡献。中国应该借鉴日本的经验,有意识地创造有利于发挥和释放女性能力的就业环境,不断拓展女性在农业、农村的活动领域,促进当地农业、农村经济的发展。     

基于MATLAB的玉米果穗图像轮廓提取

计算机视觉在玉米果穗中的应用主要是对外观质量进行评定,本文利用MATLAB对采集系统传来的玉米果穗图像进行转换、灰度化、滤波降噪、区域增强等一系列处理后,选用Log算子提取出玉米果穗轮廓,效果良好,为后续的考种数据测量做准备。     

机器视觉系统在桔瓣质量检测中的应用

开发了一套罐装线实时在线质量检测视觉系统，用于装罐前桔瓣上头发等细长形杂质检测，以保证产品质量。硬件系统采用了6台彩色CCD摄像头，两台计算机的处理结构。软件系统依据杂质和背景在颜色分布及形状大小等特征上的差异进行分离，其核心是一种用于二值图像特征区域提取的新型连通算子—面积重构算子，利用该算子平滑图像时不破坏对象轮廓完整的优点，结合改进的区域生长、区域消减等算法，形成了一套完整的检测算法。试验显示系统处理能力约30片/s，错误率仅2%。该系统能满足实时生产准确性和在线处理的要求，为其实用化、商品化奠定了基础。     

Rheological‐stiffness analysis of K+‐treated and CaCO3‐rich soils

Rheological methods are applied whenever flow behavior of substances needs to be investigated on a particle‐to‐particle scale executed by a parallel‐plate rheometer. Under oscillation, mechanical effects due to trafficking or vibrations caused by agricultural and forest machinery can be simulated by conducting amplitude‐sweep tests. Hooke's law of elasticity, Newton's law for ideal fluids (viscosity), Mohr‐Coulomb's equation, and, finally, Bingham's yielding are well‐known relationships and parameters in the field of rheology. This paper aims to introduce rheometry as a suitable method to determine the mechanical behavior of salt‐affected soils when subjected to external stresses. Potassium‐treated loamy sand from Halle and loamy silt from Kassel, both sites located in Germany, as well as loess from Israel, saturated with NaCl solutions in several concentrations were analyzed. From the stress‐strain–relationship parameters like the storage modulus G′ and the loss modulus G″, yield stress τ_y and the linear viscoelastic (LVE)–deformation range including the deformation limit γ_L, i.e., the transition from an elastic to a viscous state, were determined and calculated, respectively. With respect to salt effects, amplitude‐sweep tests on originally CaCO₃‐rich Avdat Loess show an increasing stability if saturated with higher NaCl concentrations. Comparable tests with K⁺‐rich substrates from Halle and Kassel evinced similar tendencies including the phenomenon of a critical K⁺ content, which becomes more obvious in case of the drained (–60h Pa) loamy‐silt samples from Kassel. Nevertheless, a higher microstructural stability is given in both substrates from Halle and Kassel, affected by different water contents, in general, which influence the exchange and availability of cations. The results verify that oscillatory tests are applicable for retracing salt‐induced effects, beside those ones, which are influenced by texture, current water content, and/or further chemical parameters.     

推广的Libera积分算子对S（α,β）类函数的运算

我们用S(α,β)表示在单位圆E={z∶|z+<1}内解析并且满足条件|[zf′(z)/f(z)-1]/[αzf′(z)/f(z)+1]|<β,0≤α≤1,0<β≤1,的函数之全体,在本文中,将证明如果函数f(z)属于S(α,β),那么F_c(f)=((C+1)/z~c) integral from n=0 to 1 t~(c-1)f(t)dt也属于S(α,β)。     

积分算子与高阶偏微分方程组

In this paper, by using integral operator mathod, we investigate a class of higher order partial differential equations with multiple Laplace operator in higher dimensions. We have obtained the integral representation of solutions of this equation.     

回归自变量的选择:Cp准则所有变量子集的回归

本文给出了一个计算所有可能变量子集的回归的BASIC程序,它充分考虑了BASIC语言内存较小的情况。并通过一个例子说用Cp准则选择回归自变量的方法。     

关于积分∫xn eax sinbxdx的注记

本文给出了积分xn∫eaxsinbxdx的三种不同计算方法。     

电极过程计算机研究

本文用计算机模拟了2-QADNm 线性扫描伏安曲线,模拟结果与实验数据十分接近,证实了所提出的电极反应机理,并估计了电极过程动力学参数。     

L-保序算子ω定义下的Lω一致结构

在LX中利用L-保序算子ω引入了Lω一致结构、Lω拟一致结构,并给出它们的基和子基等概念,研究了这些概念的基本性质,得到了L-保序算子、Lω一致结构、Lω拟一致结构等概念的一些特征性质.