中职体育教育改革之我见

在实施人才强国战略的今天,体育教育对于培育创新型人才起着重要作用。本文旨在通过课程资源改革、加强创新能力、提升学生素质及重视个性发展四个方面的阐释,加大中职体育教育改革力度,构建新型教学模式。     

Maintenance Policy for Multi-Component System with Fuzzy Lifetimes

The application of possibility theory to maintenance policies is proposed in this paper. The lifetime of a component is modeled as a fuzzy variable. Two types of replacement policies-block replacement and age replacement with fuzzy lifetimes are investigated. The theorems show that the long-run average fuzzy reward per unit time in both policies is just the expected cost per unit of time. In order to solve the proposed models,a hybrid intelligent algorithm is employed. Finally, numerical examples are provided for the sake of illustration.     

带模糊参数的递阶资源分配问题

针对产品价格为模糊变量的一般递阶资源分配问题,提出一个模糊期望值多目标二层规划模型,同时设计一个求此模型的Stackelberg-Nash均衡解的基于模糊模拟的二层遗传算法,并以数值例子检验了该算法的可行性.     

Dependent-Chance Programming Models for Capital Budgeting in Fuzzy Environments

Capital budgeting is concerned with maximizing the total net profit subject to budget constraints by selecting an appropriate combination of projects. This paper presents chance maximizing models for capital budgeting with fuzzy input data and multiple conflicting objectives. When the decision maker sets a prospective profit level and wants to maximize the chances of the total profit achieving the prospective profit level, a fuzzy dependent-chance programming model, a fuzzy multi-objective dependent-chance programming model, and a fuzzy goal dependent-chance programming model are used to formulate the fuzzy capital budgeting problem. A fuzzy simulation based genetic algorithm is used to solve these models. Numerical examples are provided to illustrate the effectiveness of the simulation-based genetic algorithm and the potential applications of these models.     

自定中心振动筛定心条件的分析

本文指出了常规设计中确定皮带轮几何偏心位置的方法的不足,并在考虑激振器轴心偏离筛体重心和系统刚度、阻尼不能忽略的情况下对自定中心的条件进行了精确的理论计算和分析.     

祝你睡得香甜

半夜,彼特的妻子突然犯病,疼得直在床上打滚,嘴上大呼小叫地喊着:"噢,我的肚子!快找大夫!" 彼特从沉睡中惊醒,以为他妻子只不过是做了一个恶梦而已. "别闹了."他对妻子说道,然后翻身又想睡去,但他妻子仍在高声叫嚷着:"噢,快叫大夫,我快要死了!"     

论体育团队的文化建设

从体育团队文化建设的基本内容以及建设中应遵循的特征着手,提出体育团队文化建设的具体思路:以人为本,营造体育团队“文化场”;加强宣传,增强体育团队文化意识;科学选择设计,合理转化生成.     

风送式果园喷雾机气流场优化及试验

针对采用轴流风机的风送式果园喷雾机气流场分布难以和果树冠层区域喷雾要求相吻合的问题,提出一种风机气流场优化方法.通过在风机内部的中导流板、后导流板及出风口处添加并优化导风板的方法来提高气流场与果树冠层喷雾要求的匹配效果,以提升喷雾质量.通过Solid-Works、PolyWorks和Geomagic Studio共同建...