基于“工作过程”的《市政工程施工验算》课程开发

高职课程开发要以职业能力为需求,课程内容的选择要基于"工作过程"。本文就《市政工程施工验算》课程进行了基于"工作过程"的开发和实践,总结了从课程定位到内容的选择、实施的一些经验。     

论项目课程改革与实践

项目课程是一种以工作任务为中心,选择、组织并学习工作知识的课程模式,它是当前我国职教课程改革的主要方向,高效的项目课程模式,其课程体系、教材体系、师资队伍、教学设施保障,要围绕着项目课程任务所规定的、与就业岗位工作任务紧密相关的模块构建;学生的学习在体现职业环境特点的教学氛围中,围绕学习项目,以完成工作化的学习任务为基础、在有目标的学习中积累实践知识、获取理论知识。探讨项目课程实施过程相应问题。     

基于工作过程导向课程开发与建设的学习——计算机科学与技术系软件教研室

从事职业教育首先必须树立正确的职业教育课程观。课程观是人们源于哲学、心理学、社会学、技术学、教育学和课程论等方面的原理或主张进而形成对课程的基本观点或一般看法,其核心是课程理念或课程价值取向。随着高等职业教育改革的深入,课程开发的重要性已日益凸显,工作过程导向的高职项目课程开发非常艰巨,能否有效地进行课程开发,决定着高等职业教育的特色和质量。本文就基于工作过程导向课程开发与建设的学习总结进行探讨。     

《传热学》课程线上教学思考与实践

疫情期间,为保障《传热学》课程更好的开展线上教学,基于传热学课程在教学过程中存在问题,利用雨课堂和企业微信平台从教学方法和手段上尝试改进,通过成立学习小组、教学课堂结合日常生活生产实例、融入自己科研内容,将课堂知识学习与学科竞赛相结合,改革考核方式等改革措施,使学生爱上传热学,教师的教学质量更高、教学效果更优,充分发挥传热学课程对于专业课程学习的引领作用。     

国家职业标准在高职专业课程开发中的转化研究

国家职业标准结构体系的课程系统化转换和职业能力要求的课程化转化是高职工程类专业课程开发的两个重要环节。国家职业标准的课程系统化转换通过解析职业中岗位（工种）的数量、界定职业活动的内容、划分学习领域的方法实现,是课程开发的基础。在此基础上,通过合理设计课程学习项目、萃取职业活动中的典型工作任务,将职业基础知识、基本素质要求、技能要求融入其中,并以工作过程为主线进行有机联接,实现职业能力要求的课程化转化,最终达到开发基于国家职业标准课程的目标。     

探索基于“工作过程”的《市政桥梁工程施工》课程的改革与实践

基于工作过程的课程是高等职业教育发展的趋势,基于"工作过程"的课程设计是符合我国当前高等职业教育规律,本文进行了基于"工作过程"的《市政桥梁工程施工》课程的开发与实践。     

基于工作过程的《物流运输管理实务》课程改革探讨

本文就基于工作过程的《物流运输管理实务》课程改革进行探讨,分析基于工作过程的课程改革内涵,探讨课程改革实施方案,确定课程的地位、课程改革思路、课程的整体设计模式、教学考核与评价。对项目化课程改革提出建议。     

数控技术应用专业学习结果与学习过程的评价机制研究

本文通过对基于工作过程教学改革改革现状的介绍,给出了数控技术应用专业的参考课程设置与科目,并且通过了对当前课程学习结果与学习过程的评价方法分析,提出基于加权学分制的工作加权学分制评价机制。     

基于工作过程系统化的“数字图像处理”课程改革

本文从课程培养的目标和改革的思路出发,对课程的设计理念、设计内容以及教学方法进行了阐述。通过基于工作过程系统化的改革,本课程在教学上取得了一定的成绩。     

项目化教学课程评价体系的研究

基于工作过程系统化的项目化课程模式是当前高职课程改革的主流方向。如何建立符合高职项目化课程教学规律的科学评价体系,有效发挥评价机制在整个课程实施过程中的导向作用,是高职项目化课程实施过程中亟须解决的问题。本文针对基于工作过程系统化的项目化课程评价体系的构建进行了深入的研究与探讨。     

检定和校准证书的异同与应用

本文介绍了检定和校准以及证书的两点相同、五点不同之处,说明了对检定证书和校准证书的正确应用。     

Synthesis and luminescent properties of alkali-metal and ammonium fluorosulfatozirconates and fluorosulfatohafnates

We have synthesized a variety of alkali-metal and ammonium fluorosulfatometallates (titanates, zirconates, and hafnates). The alkali fluorosulfatozirconates and fluorosulfatohafnates have been shown to exhibit efficient roentgenoluminescence (RL) in the UV through visible spectral region, with a maximum at 390–440 nm. Their RL spectra depend significantly on their composition (cation, anion, and water content), coordination of KF and K₂SO₄, and relative amounts of fluorine and SO₄ groups. We have examined the effect of heat treatment on the RL of these compounds. The rubidium and cesium fluorosulfatozirconates Rb₃Zr₂F₉SO₄ · 2H₂O, Cs₂ZrF₂(SO₄)₂ · 2H₂O, Cs₈Zr₄F₂(SO₄)₁₁ · 16H₂O, and Cs₂ZrF₄SO₄ offer the most efficient RL.     

Heat and Mass Transfer and Modeling and Prediction of Environmental Catastrophes

Basic definitions and concepts of the physicomathematical theory of natural catastrophes are given. Possibilities of mathematical modeling of natural and technogenic catastrophes are discussed in the context of the theory of heat and mass transfer and the mechanics of reacting media. The importance of taking into account conjugate heat and mass exchange in modeling catastrophes is emphasized. A formula for evaluating the probability of a collisional catastrophe is given.     

Multi-ferroic and magnetoelectric materials and interfaces

The existence of multiple ferroic orders in the same material and the coupling between them have been known for decades. However, these phenomena have mostly remained the theoretical domain owing to the fact that in single-phase materials such couplings are rare and weak. This situation has changed dramatically recently for at least two reasons: first, advances in materials fabrication have made it possible to manufacture these materials in structures of lower dimensionality, such as thin films or wires, or in compound structures such as laminates and epitaxial-layered heterostructures. In these designed materials, new degrees of freedom are accessible in which the coupling between ferroic orders can be greatly enhanced. Second, the miniaturization trend in conventional electronics is approaching the limits beyond which the reduction of the electronic element is becoming more and more difficult. One way to continue the current trends in computer power and storage increase, without further size reduction, is to use multi-functional materials that would enable new device capabilities. Here, we review the field of multi-ferroic (MF) and magnetoelectric (ME) materials, putting the emphasis on electronic effects at ME interfaces and MF tunnel junctions.     

CellML and associated tools and techniques

We have, in the last few years, witnessed the development and availability of an ever increasing number of computer models that describe complex biological structures and processes. The multi-scale and multi-physics nature of these models makes their development particularly challenging, not only from a biological or biophysical viewpoint but also from a mathematical and computational perspective. In addition, the issue of sharing and reusing such models has proved to be particularly problematic, with the published models often lacking information that is required to accurately reproduce the published results. The International Union of Physiological Sciences Physiome Project was launched in 1997 with the aim of tackling the aforementioned issues by providing a framework for the modelling of the human body. As part of this initiative, the specifications of the CellML mark-up language were released in 2001. Now, more than 7 years later, the time has come to assess the situation, in particular with regard to the tools and techniques that are now available to the modelling community. Thus, after introducing CellML, we review and discuss existing editors, validators, online repository, code generators and simulation environments, as well as the CellML Application Program Interface. We also address possible future directions including the need for additional mark-up languages.     

热交换器的分类及优缺点分析

热交换器是将不同温度介质之间的热量通过热传导的形式,由高温介质传递给低温介质,使介质达到生产所需温度的工艺设备,也可作为一种节能设备使用.通过对不同热交换器的结构分析,总结不同热交换器的优缺点、适用环境,为生产工艺设计人员及设备制造单位在选择可降低能耗、提高效率的设备上提供参考.     

The shape and stability of wall-bound and wall-edge-bound drops and bubbles

The behavior of wall-bound drops and bubbles is fundamental to many natural and industrial processes. Key characteristics of such capillary systems include interface shape and stability for a variety of gravity levels and orientations. Significant solutions are in hand for axisymmetric pendent drops for a variety of uniform boundary conditions along the contact line with gravity acting normal to a planar wall. The special case of a wall-bound drop or bubble that is also pinned at an edge (i.e. a ‘wall-edge-bound’ drop) is considered here where numerical solutions are obtained for interface shape and stability as functions of drop volume, contact angle, fluid properties, and uniform gravity vector. For a semi-infinite zero-thickness planar wall (plate), a critical contact angle is identified below which wall-edge-bound drops are always stable. The critical contact angle is computed as a function of the gravity vector. The numerical procedure, which makes no account for contact angle hysteresis, predicts that such wall-edge-bound drops are unconditionally unstable for any gravity field with a component that is tangent to the wall while inwardly normal to the edge. Select experiments are conducted that support the conclusions drawn from the numerical results.