烟道气中二氧化碳矿化利用研究

通过用白灰做胶凝剂的成型材料,控制反应温度在4℃-128℃的范围内,来捕集烟道气中低浓度的二氧化碳、二氧化硫、二氧化氮、一氧化氮,并将其固存在成型材料中,使二氧化碳、二氧化硫矿化成为产品的组成部分,得到多种早强的白灰气硬性产成品,并由此得到二氧化碳、二氧化硫、二氧化氮、一氧化氮枯竭的烟道气。其主要用途是:可用于燃煤发电厂的二氧化碳、二氧化硫、二氧化氮、一氧化氮的减排,并使其固体排放物得到综合利用,得到早强的白灰成型材料产成品。     

本科教学工作合格评估材料与建档思考

本科教学工作合格评估材料具有展示、查阅和佐证作用,可以分为报送材料、支撑材料、佐证材料和展示材料,具有客观性、原态性、针对性、时效性、规范性、精炼性,需要根据高校档案分类法进行创造性建档组卷,为学校评估奠定长效基础。     

高等职业教育经济管理类专业教材建设思考

分析了中国高等职业教育经济管理类专业教材建设中存在的问题：教材内容质量有待进一步提高,教材结构单一,教材建设系统性不强等,探讨了以培养目标为核心进行教材建设、以课程体系为基础开展系列教材建设、以教学内容为主体开展教材内容建设的教材建设路径,提出了建设具有鲜明特色内容的教材、形成创新型教材结构、摒弃＂本科压缩型＂教材模式的教材建设新思路。     

我国教材中存在的问题研究——从杜威教材观入手

杜威对教材的定义、发展、教师学生在教材前不平等以及学生需要的教材、使用教材阶段进行了论述.结合杜威的论述.可以看出我国教材存在不适应社会和学生需要、教师解读教材不足、教材灵活性不足等问题.今后我国教材编制要适应社会和学生需要、提高教师素质、注重教材内容时代性和综合性、教育理论家要进行教材编制.     

新升本科院校大学英语教材选订中需要考虑的几个问题

新升本科院校各方面基础差底子薄,要推进其大学英语教材改革,就必须把这点基本院情考虑进去。在这些院校中推进教材改革,要想靠大面积的自编教材,还不太现实,主要还得靠在市面上选订。为了能购买到适合自身情况的教材,在选订中应该把持这样的三个标准:教材的编写原则,英语学习方法及规律,此类院校大学英语教学实情。     

高校教材选用面临问题及对策研究

教材是知识的载体,是课堂教学的重要工具。优质教材的选用是高校实现人才培养根本任务、提高教学质量和培养学生创新能力的基础,科学选用优质教材势在必行。就高校教材选用中存在的问题进行了深入剖析,提出了解决当前问题、不断提高教材选用质量的对策,以期创新教材选用思路,提高高等教育的教学质量。     

CIPP评价模式对ESP教材编写的启示

ESP(English for Specific Purpose)教材是进行ESP教学的基础和核心,教材的研究将有助于ESP教学的改革和发展。而CIPP模式是一种被广泛认可接受并具有很强的实用性评价模式,适用于ESP课程改革,对于ESP教材的编写也将具有一定的指导意义。本文以CIPP评价模式为基础,讨论目前存在的问题,提出建议,以推动和完善该课程的建设。     

科学与艺术的发展关系探析

科学是社会发展的第一推动力,科学的发展必然对艺术的发展起到一定的作用,本文从艺术社会学、艺术表现手法、艺术材料、艺术家族四个角度立足与艺术史的视野来探究科学与艺术发展的关系。     

Do students learn what they teach when generating teaching materials for others? A meta-analysis through the lens of learning by teaching

Students can generate teaching materials for others. However, solid evidence of the learning effect for the student creating the material is needed. This meta-analysis aims to explore current evidence of the learning-by-teaching potential effect on students’ learning of the content they teach. A total of 23 articles were included in the meta-analysis, providing 62 comparisons between an intervention in which students were required to create a teaching material and an alternative condition. Possible moderators were examined as well (i.e., product, educational level, content area, and access to source material). Results show statistically significant differences in favour of creating teaching materials when compared to business-as-usual or alternative interventions, with an overall effect of 0.17. However, the type of product and the access to source material significantly moderate the findings. Audio-visual and visual materials considerably outperform textual materials. Having no access to the source material is better than having full access to it. No publication bias was detected. However, the type of control group moderates the findings: creating teaching materials shows a significant effect when compared to nonbeneficial interventions rather than to other expected beneficial interventions. Nonbeneficial interventions refer to business-as-usual or alternative interventions that are not expected to influence the outcome much, while beneficial interventions are those that are known or expected to have a positive effect. The findings are discussed based on the different views on the underlying learning-by-teaching mechanisms. Limitations as well as implications for practice, policy, and future research are underlined.     

Migrating product structure bill of materials Excel files to STEP PDM implementation

It is important for manufacturing companies to provide a standard for product data exchange between diverse computer systems. Past attempts to develop neutral format standards for data exchange have had limited success, and have led to the development of STEP (Standard for the Exchange of Product) as a data exchange standard. The STEP standard makes it easier to integrate systems that process various product life-cycle functions, such as design, engineering, manufacturing, logistics support, and will help to facilitate concurrent engineering. The goal of this paper is to facilitate the computer-readable exchange of the product bill of materials (BOM) information for product data management (PDM). In this paper, the STEP ISO 10303-21 is implemented to share the product data information in a manufacturing environment. A structural product bill of materials is first transformed into an Excel file format, then a PDM Schema Exporter is utilized to export a BOM Excel file to a STEP Part 21 file. A C# program decodes the STEP file into BOM information to update the PDM databases in SQL server for product data management. Also, SAS code is written to generate the indented bill of materials from the BOM information, to draw a tree diagram to present an accurate structural view of a product, and to export to PDM databases for product data structural view.