多媒体计算机实践教学网络机房的维护技术

本文详细介绍了当前高校多媒体计算机实践教学网络机房常用的几种技术雏护手段,包括硬盘写保护技术、“克隆“技术、网络技术、注册表技术等并结合实际维护工作进行了比较分析.     

平面交叉口的安全设计

本文对平面交叉口的类型选择,设计时应考虑的因素,设计过程和设计原则等方面进行了较为详细的阐述,旨在说明如何设计交叉口才能最大限度地保证交通安全,提高通行能力.     

管理系统中的错误研究

通过介绍几个经济管理中的典型案例，探索了经济和管理中错误的变化或转化的条件、方式和规律。在介绍模糊错误集得出几个基本概念的同时，主要研究了模糊错误集分解运算与内涵对立运算的关系，得到了1个定理。     

关于西藏高校“计算机文化”课程教学考核改革思考

在科技迅速发展的今天,信息化管理及其人们对新信息的需求程度不断提高,计算机技术的应用日益深入到各行各列,西藏高校的"计算机文化"课程的教学方法和考核方式都迫切需要改革。文章在教学实践的基础上,对我区高校"计算机文化"课程的教学方法及考核方式改革进行了探索。     

浅议临猗县枣业发展的现状与出路

文章论述了临猗县枣业发展的历程，通过总结经验、探寻原因和市场调查各方面的分析，认为枣业的发展大有前途。     

Homology Priority Task Scheduling in μC/OS-Ⅱ Real-Time Kernel

μC/OS-Ⅱ is an open source real-time kernel adopting priority preemptive schedule strategy. Aiming at the problem of μC/OS-Ⅱ failing to support homology priority tasks scheduling, an approach for solution is proposed. The basic idea is adding round-robin scheduling strategy in its original scheduler in order to schedule homology priority tasks through time slice roundrobin. Implementation approach is given in detail. Firstly, the Task Control Block （TCB） is extended. And then, a new priority index table is created, in which each index pointer points to a set of homology priority tasks. Eventually, on the basis of reconstructing μC/OS-Ⅱ real-time kernel, task scheduling module is rewritten. Otherwise, schedulability of homology task supported by modified kernel had been analyzed, and deadline formula of created homology tasks is given. By theoretical analysis and experiment verification, the modified kernel can support homology priority tasks scheduling, meanwhile, it also remains preemptive property of original μC/OS-Ⅱ.     

学生管理中的沟通策略——浅谈单亲家庭子女的学校教育

本文在对单亲家庭子女的性格作客观分析的基础上,探讨了学校教育管理中如何引导单亲家庭子女健康成长的问题。主要提出了学生管理中的五大沟通策略。     

改善20CrMnTiH淬透性的研究

莱钢特钢厂20CrMnTiH钢材成分波动较大,淬透性带HRC8～10,范围较大,制约了齿轮钢质量的进一步提高.通过研究,发现铸坯中心偏析尤其是碳偏析为主要问题.通过工艺优化采取各项措施,尤其增加电磁搅拌后,中心碳偏析得到明显改善;C控制在0.19%～0.20%的炉次达到了95.6%;淬透性带控制在HRC6内的达到了92.1%;在HRC4内的达到了86.2%;提高了产品质量,满足了用户需求.     

The Difference of the Pulmonary-Artery Pressure of the Migrants from Difference Elevation at the 4636 - 4907 m Altitude

Study Objective： To compare and analyze the changes of the pulmonary-artery pressure of the migrants coming from different elevation in the hypoxic environment of 4636 - 4907 m extreme altitude. To explore the susceptibility to hypoxic pulmonary-artery hypertension （PH） in the subjects from different altitude and profession. Methods： By using Color Doppler Ultmsonography （CDU）, measuring the pulmonary-artery pressure of 207 healthy men, who had continuously being lived and worked at the extreme altitude for more than six months, and then were divided into three groups according to their profession and the altitude of original living place. Results： There was a significant difference in the outcomes of pulmonary-artery pressure from the 3 groups. Conclusions： Altitude of original living place, labor intensity are some of factors that impact the pulmonary-artery pressure of the people who exposure to a hypoxic environment. The pulmonary- artery pressure of person without strenuously physical work experience was more sensitive to hypoxic surroundings than that of labor workers. It was not always the fact at an extreme altitude that the moderate altitude mountaineers were superior to other migrants from a lower altitude or plain. The higher PH was found in the groups of the moderate altitude mountaineers and labor workers. It is unlikely certain that one with PH would surfer from HAPE.     

反渗透系统的设计思路探讨

反渗透作为一种重要的水处理技术,越来越广泛地应用到各种领域,其处理水源也变得复杂多样化,因此要求在反渗透系统和反渗透预处理设计时予以高度关注。本文主要讨论针对不同水源时反渗透系统的设计思路。