以培养计算思维为核心的高职高专计算机基础课程教学内容优化探究

根据当前高职高专计算机基础课程教学的现状,分析了计算机基础课程教学存在的问题,提出了以培养"计算思维"为核心的高职高专计算机基础课程教学内容、实践环节、考核方式等教学优化的改革目标与方案。     

Oxygen enrichment from air through multilayer thin low‐density polyethylene films

Several multilayer thin low‐density polyethylene (LDPE) films were fabricated by blown thin film having a thickness of 7 μm and an area of 130 cm². They were characterized for their oxygen‐enrichment performance from air by a constant pressure–variable volume method in a round permeate cell with an effective area of 73.9 cm². The relationship between oxygen‐enrichment properties, including oxygen‐enriched air (OEA) flux, oxygen concentration, permeability coefficients of OEA, oxygen, nitrogen, as well as separation factor through the multilayer LDPE films, and operating parameters, including transfilm pressure difference, retentate/permeate flux ratio, temperature, as well as layer number, are all discussed in detail. It is found that all of the preceding oxygen‐enrichment parameters increase continuously with an increase of transfilm pressure difference from 0.1 to 0.65 MPa, especially for the trilayer and tetralayer LDPE films. The oxygen concentration and separation factor appear to rapidly increase within the retentate/permeate flux ratio below 200, and then become unchangeable beyond that, whereas the OEA flux and the permeability coefficients of OEA, oxygen, and nitrogen seem to remain nearly constant within the whole retentate/permeate flux ratio investigated, especially for the monolayer and bilayer LDPE films. The selectivity becomes inferior, whereas the permeability becomes superior, as the operating temperature increases from 23 to 31°C. The highest oxygen concentration was found to be 44.8% for monolayer LDPE film in a single step with air containing oxygen of 20.9% as a feed gas and operating pressure of 0.5 MPa at a retentate/permeate flux ratio of 340 and 23°C. The results demonstrate a possibility to prepare an oxygen‐enriching membrane directly from air, based on the easily obtained thin LDPE films. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 3013–3021, 2002; DOI 10.1002/app.2331     

软件专业高职实训教学法研究

本文围绕软件专业建设重点难点开展理论教学与实践教学研究,构建软件专业高职实训教学框架体系,通过实训内容项目化。强化实训环境建设,以力求实训效果职业化,从而使教学工作真正步入高等职业教育轨道,提高学生就业机会,实现人才培养目标。     

高等学校金融学科实验教学中心建设的探索与思考

以广东金融学院金融学科实验中心为例,依据中心的建设与发展自身情况,以服务地方经济培养应用型人才为目标,对金融学科实验室进行整合,根据高校金融学专业方向,构建和完善金融学科全方位实验平台,大力推进实验教学模式的创新,培养具有扎实理论基础并具有实践分析判断能力的创新型金融人才。     

积层多层板用UV油墨的合成研究

采用丙烯酸改性环氧树脂E－44的方法，合成了环氧丙烯酸酯预聚物，并将其用在UV光固化油墨的配方中。在树脂合成过程中，研究了反应温度，催化剂，阻聚剂等因素对合 产品的影响。通过L9(3^4)正交试验，得到了优化的工艺参数：反应温度为90℃，催化剂为N，N－二甲苯胺，用量1％；阻聚剂对苯二酚，用量0．5％，投料环氧树脂和丙烯酸的摩尔比为1：1．08。     

Acquired Predator Recognition by Fathead Minnows: Influence of Habitat Characteristics on Survival

In this study we conditioned fathead minnows (Pimephales promelas) to recognize the odor of a perch (Perca flavescens) by exposing them to perch odor coupled with minnow alarm cue. We then staged encounters between the predator and prey in order to assess whether the predator odor training had any effect on survival of the prey. We tested for a survival effect in the presence and absence of shelter. Our results indicate that fish trained with alarm signals to recognize predators gained a survival benefit during staged encounters with a predator and that habitat characteristics influenced the survival of conditioned fish.     

区域性本科院校实训基地建设若干问题的探究

通过对区域性本科院校实训基地建设存在的问题进行分析,借鉴国内外高职院校实训教学基地建设成功经验,结合区域性本科院校的具体情况,对实训基地的建设提出了一些解决问题的政策性建议和实践性对策措施,探索总结了实训基地建设的途径和机制。     

火电厂运行生产准备人员培训思路探讨

火电厂生产准备期间的技术要求和各阶段的工作目标是环环相扣的,因此,生产准备人员的培训工作应紧密追踪工程进度,做到"以责任制落实来保证培训工作的到位,以考核机制来强化培训工作的完成"。     

某型飞机武器模拟训练系统的设计与实现

开发和应用模拟训练系统是当前应对高技术武器装备训练难题的一个重要手段,本文对某型飞机武器系统的功能和组成进行了研究,给出了训练系统的软、硬件设计方案,分析了训练系统主从信息处理系统的串行通信、操作手柄零位的FPGA判断等关键技术,并在Windows操作系统下用VC++和Micorsoft Office Access 2003实现了该训练系统,给出了座舱武器控制面板、主控界面、制导和非制导武器通电检查的效果图,实践证明该模拟训练系统对该机型真实的武器操作训练具有很好的仿真性。     

高职院校"双师素质"教师培养项目体系建设之探讨

高职院校"双师素质"教师培养项目体系建设,是高职院校队伍建设的重要研究课题。按照分层次、分类别、分项目设计培养项目体系,是人才培养工作的需要,是质量工程建设的需要,是学校特色建设的需要。"双师素质"教师培养项目体系的实施,可以使队伍建设更加科学与系统,提高教师培养的针对性和可操作性,确保教师培养的人性化管理。从而有助于培养一支师德高尚、业务精湛、结构合理、充满活力的高素质专业化教师队伍,实现高职教育的改革与建设目标。