生产实习是本科教学中重要的实践教学环节。文章以化工专业本科生生产实习为基础,基于工程认证培养学生综合能力的前提下,通过课程目标的制定,完善和丰富教学内容。提出涵盖平时考核、实习报告撰写和实习答辩的考核方式,以及通过达成度...生产实习是本科教学中重要的实践教学环节。文章以化工专业本科生生产实习为基础,基于工程认证培养学生综合能力的前提下,通过课程目标的制定,完善和丰富教学内容。提出涵盖平时考核、实习报告撰写和实习答辩的考核方式,以及通过达成度反馈学生能力的评价体系。为生产实习教学方法和评价体系的优化,也为培养多学科复合型人才起到一定的借鉴作用。Production internships constitute a vital practical teaching component in undergraduate education. Drawing on the foundation of production internships for undergraduate students majoring in chemical engineering, this article proposes refining and enriching teaching content through the formulation of curriculum objectives, based on the premise of cultivating students’ comprehensive abilities in accordance with engineering accreditation. A comprehensive assessment method encompassing regular evaluations, the writing of internship reports, and internship defense is outlined, as well as an evaluation system that assesses students’ abilities through achievement feedback. This article not only offers insights into optimizing teaching methods and evaluation systems for production internships but also serves as a reference for fostering interdisciplinary and versatile talents.展开更多
煤化学是专业基础课程,同时是一门实践性极强的交叉学科的课程,存在教师难讲学生难学的问题。近几年秉承OBE的评价–反馈–改进的理念进行教学改革,切实取得了较好的效果。本文以化学工程与工艺专业三年360名左右的学生为研究对象,从以...煤化学是专业基础课程,同时是一门实践性极强的交叉学科的课程,存在教师难讲学生难学的问题。近几年秉承OBE的评价–反馈–改进的理念进行教学改革,切实取得了较好的效果。本文以化学工程与工艺专业三年360名左右的学生为研究对象,从以学生为中心的课程设计、课程达成情况分析以及改进措施三个方面阐述煤化学课程基于OBE理念的改进过程以及取得的效果,旨在为同行提供一点借鉴。Coal chemistry is a fundamental course in the field, and it is also a highly practical interdisciplinary course, therefore, it is difficult to teach and learn. In recent years, adhering to the OBE concept of evaluation, feedback and improvement, teaching reforms have achieved good results. This article takes about 360 students in Chemical Engineering and Technology for three years as the research object, and the improvement process and results of coal chemistry course were elaborated from three aspects: student-centered course design, course achievement analysis, and improvement measures. The aim is to provide some reference for peers.展开更多
The associations of triblock copolymer made of acrylic acid, methyl acrylic acid and butyl acrylate in aqueous solution as well as in NaCl and CaCl 2 solutions were studied by using fluorescence. The micelle like clus...The associations of triblock copolymer made of acrylic acid, methyl acrylic acid and butyl acrylate in aqueous solution as well as in NaCl and CaCl 2 solutions were studied by using fluorescence. The micelle like clusters(MLCs) of copolymer formed is able to solubilize non polar material. A little electrolytes added in the copolymer solution can increase the value of critical aggregation concentration( ρ ac ) and micropolarity. But with the increase of the concentration of electrolytes, the value of ρ ac and micropolarity will decrease. When there is NaCl with fixed concentration in the systems, the process of the MLCs loosening is relaxed because of the charge screening. In the systems with fixed CaCl 2 concentration, Ca 2+ induced the cross link of -COO - groups, so the interface between the MLCs and the water is not obvious and the big MLCs is formed between the clusters.展开更多
文摘生产实习是本科教学中重要的实践教学环节。文章以化工专业本科生生产实习为基础,基于工程认证培养学生综合能力的前提下,通过课程目标的制定,完善和丰富教学内容。提出涵盖平时考核、实习报告撰写和实习答辩的考核方式,以及通过达成度反馈学生能力的评价体系。为生产实习教学方法和评价体系的优化,也为培养多学科复合型人才起到一定的借鉴作用。Production internships constitute a vital practical teaching component in undergraduate education. Drawing on the foundation of production internships for undergraduate students majoring in chemical engineering, this article proposes refining and enriching teaching content through the formulation of curriculum objectives, based on the premise of cultivating students’ comprehensive abilities in accordance with engineering accreditation. A comprehensive assessment method encompassing regular evaluations, the writing of internship reports, and internship defense is outlined, as well as an evaluation system that assesses students’ abilities through achievement feedback. This article not only offers insights into optimizing teaching methods and evaluation systems for production internships but also serves as a reference for fostering interdisciplinary and versatile talents.
文摘煤化学是专业基础课程,同时是一门实践性极强的交叉学科的课程,存在教师难讲学生难学的问题。近几年秉承OBE的评价–反馈–改进的理念进行教学改革,切实取得了较好的效果。本文以化学工程与工艺专业三年360名左右的学生为研究对象,从以学生为中心的课程设计、课程达成情况分析以及改进措施三个方面阐述煤化学课程基于OBE理念的改进过程以及取得的效果,旨在为同行提供一点借鉴。Coal chemistry is a fundamental course in the field, and it is also a highly practical interdisciplinary course, therefore, it is difficult to teach and learn. In recent years, adhering to the OBE concept of evaluation, feedback and improvement, teaching reforms have achieved good results. This article takes about 360 students in Chemical Engineering and Technology for three years as the research object, and the improvement process and results of coal chemistry course were elaborated from three aspects: student-centered course design, course achievement analysis, and improvement measures. The aim is to provide some reference for peers.
文摘The associations of triblock copolymer made of acrylic acid, methyl acrylic acid and butyl acrylate in aqueous solution as well as in NaCl and CaCl 2 solutions were studied by using fluorescence. The micelle like clusters(MLCs) of copolymer formed is able to solubilize non polar material. A little electrolytes added in the copolymer solution can increase the value of critical aggregation concentration( ρ ac ) and micropolarity. But with the increase of the concentration of electrolytes, the value of ρ ac and micropolarity will decrease. When there is NaCl with fixed concentration in the systems, the process of the MLCs loosening is relaxed because of the charge screening. In the systems with fixed CaCl 2 concentration, Ca 2+ induced the cross link of -COO - groups, so the interface between the MLCs and the water is not obvious and the big MLCs is formed between the clusters.
