Research and Practice of the Blended Teaching Model of BOPPPS Teaching Method Under the Background of Digital Education: Taking Operations Research Course as an Example

The rapid development of digital education provides new opportunities and challenges for teaching model innovation.This study aims to explore the application of the BOPPPS(Bridge-in,Objective,Pre-assessment,Participatory learning,Post-assessment,Summary)teaching method in the development of a blended teaching model for the Operations Research course under the background of digital education.In response to the characteristics of the course and the needs of the student group,the teaching design is reconstructed with a student-centered approach,increasing practical teaching links,improving the assessment and evaluation system,and effectively implementing it in conjunction with digital educational technology.This teaching model has shown significant effectiveness in the context of digital education,providing valuable experience and insights for the innovation of the Operations Research course.

Research on the Application of PBL+SPOC Blended Teaching Model in Probability and Statistics Course

To cultivate talents with an exploratory spirit and practical skills in the era of information technology,it is imperative to reform teaching methods and approaches.In the teaching process of the Probability and Statistics course,an application-oriented blended teaching model combining problem-based learning and small private online course was explored.By organizing and implementing online and offline teaching activities based on problem-based learning,a multidimensional process-oriented learning assessment system was established.Practice has shown that this model can effectively enhance classroom teaching effectiveness,benefiting the improvement of students’overall skills and mathematical literacy.

Nonlinear Auto-Companding Method for Behavioral Modeling of Switched-Current Circuits

A wavelet collocation method with nonlinear auto companding is proposed for behavioral modeling of switched current circuits.The companding function is automatically constructed according to the initial error distribution obtained through approximating the input output function of the SI circuit by conventional wavelet collocation method.In practical applications,the proposed method is a general purpose approach,by which both the small signal effect and the large signal effect are modeled in a unified formulation to ease the process of modeling and simulation.Compared with the published modeling approaches,the proposed nonlinear auto companding method works more efficiently not only in controlling the error distribution but also in reducing the modeling errors.To demonstrate the promising features of the proposed method,several SI circuits are employed as examples to be modeled and simulated.

基于Auto·Blend Plus技术的HPLC法同时测定抗感冒复方制剂中5种不同酸碱性成分的含量

目的:建立同时测定抗感冒复方制剂中5种不同酸碱性成分含量的方法。方法:采用高效液相色谱法,工作站为ACQUITY Arc系统的Auto·Blend Plus软件,色谱柱为Discovery~?HS F5-5,流动相为酸混合液-碱混合液-甲醇-0.3%三乙胺(梯度洗脱),流速为1.0 mL/min,检测波长为270 nm(对乙酰氨基酚、水杨酰胺、马来酸氯苯那敏、盐酸曲普利啶)、299 nm(乙酰水杨酸),柱温为35℃,进样量为20μL。结果:对乙酰氨基酚、水杨酰胺、乙酰水杨酸、马来酸氯苯那敏、盐酸曲普利啶检测质量浓度线性范围分别为26～411μg/mL(r=0.999 6)、16～254μg/mL(r=0.999 8)、16～748μg/mL(r=0.998 1)、35～565μg/mL(r=0.999 8)、25～404μg/mL(r=0.999 7);定量限分别为3.6、3.1、4.0、9.6、6.3μg/m L,检测限分别为1.9、1.3、1.4、2.9、2.3μg/mL;中间精密度、稳定性、重复性试验的RSD均小于2%;加样回收率分别为100.0%～102.0%(RSD=0.59%,n=9)、95.2%～101.0%(RSD=1.55%,n=9)、96.2%～99.9%(RSD=1.24%,n=9)、96.2%～101.5%(RSD=1.57%,n=9)、96.3%～98.9%(RSD=0.83%,n=9);耐用性试验的RSD均小于3%。结论:该方法操作简便、准确,精密度、稳定性、重复性、耐用性好,可用于抗感冒复方制剂中5种不同酸碱性成分含量的同时测定。

A Method for Semi-quantitative Analysis of C-S-H Gel in a Blended Cement Paste

An amended method for accurate measuring the quantity of calcium silicate hydrate(C-S-H) in pure cement paste and blended cement paste by water adsorption was made, which based on R.A.Olson’s method. Two improvements to this method, such as using C-S-H gel by hydro-thermal synthesis as standard sample and the stoichiometry of C-S-H gel is partitioned based on hydration time and the amount of mineral admixture. The result of C-S-H gel content in pure cement paste and blended cement paste is higher than by R.A.Olson’s method.

A New Distinguish Method of Blending Coals Slagging Characteristic

The slagging characteristic of coal effects the safe operation of boiler unit directly, the study on coal slagging is paid more and more attention by scholars of the world. Because of the complexity of coal characteristic, the blending coals slagging characteristic is more complex than single coal. The study method of blending coals characteristic is the same as the single coal method, but the simple method can’t distinguish the blending coals slagging characteristic well and truly. This paper gives the new distinguish method of blending coals slagging characteristic based on experimentation condition, it is the rate of slag and furnace refuse. The rate of slagging on furnace wall and the refuse on furnace bottom has utilized to distinguish the slagging characteristic of coal. The result shows that the rate of slag and furnace refuse method has better veracity.

PARACRYSTAL STRUCTURE PARAMETERS STUDIES IN LDPE/EPO BLENDS WITH VARIANCE-RANGE FUNCTION METHOD

X-ray diffraction line profiles of low density polyethylene(LDPE)/ (ethylene-propylene-octene-1)copolymer(EPO)blends have been analyzed with variance range function method.Theories for determining the microparacrystallite size and the distortion parameter from single reflection have been described,and the value of these two parameters at (110)and(200)directions have been determined.

C-E Translation Methods of Auto Parts Instructions Explained by Skopostheorie

China has made great achievements in foreign trades.An investigation shows that China’s annual volume of export is about 60billion,which only accounts for 10%of the worlds.The quality of product’s publicity is an essential reason and instructions translation also quite important.This thesis tries to analyze the C-E translation methods of auto parts instructions with Skopostheorie.

Auto CAD图解法在缓和曲线计算中的应用

本文以缓和曲线直角坐标计算公式及切线角计算公式为基础,先用Excel分段计算出缓和曲线坐标,用较短长度直线连接成一条多段线来拟合缓和曲线;然后利用Auto CAD中自定义坐标系、旋转和平移等命令,实现在直线段和圆曲线之间插入缓和曲线的图解坐标计算方法。

A Research on the Online and Offline Blended Teaching Mode of College English Based on the Output-Oriented Method

Under the background and premise of higher education reform,the output-oriented method has established a scientific teaching concept for college English teaching and applied the integrated teaching ideology of learning and application to college English teaching,so as to improve the teaching effect.Based on the output-oriented teaching method,this paper analyzes and studies the online and offline blended teaching mode.

Research on Blended Teaching Design Based on Deep Learning

In recent years,the blended teaching model in Chinese universities has developed rapidly,breaking through the time and space constraints of the teaching process and enriching teaching resources.The emergence of different teaching platforms has also actively promoted the modern development of education.However,there is still room for continuous optimization and development of blended learning,and issues such as some students’inability to effectively utilize online resources,inability to conduct in-depth learning,lack of thinking training,and insufficient ability cultivation and improvement require resolution.This article fully utilizes the basic concepts of deep learning in the existing blended teaching mode,proposes a blended teaching design based on deep learning,and enriches the existing student assessment and evaluation methods,thereby improving the teaching effectiveness of existing blended teaching,deepening the achievements of teaching reform,and improving teaching quality.

混合式教学法在中医儿科学的运用

新型冠状病毒肺炎疫情的发生,促使医学院校将课程建设重心放在教学方法的改革当中。长久以来,各大高校对混合式教学法的探索不断进步、不断发展,这是对教育教学改革的促进,也是中国现代教育发展的必然。混合式教学法将传统填鸭式教学方式转变为“以学生自主学习为主”的信息化教学新模式。此研究从课程特点、线上微课设计、线上课程模式、线下翻转课堂等方面开展,得出混合式教学法在中医儿科学课程教学中发挥着积极有效的优势作用,对临床专业课课程建设的发展起到深远影响。

混合式教学下高等数学课程思政建设的优化路径

课程思政理念融入大学数学教育,对培养合格的社会主义接班人起到重要作用。基于大学边界理论的视角,在CSCL为基础的协助学习环境中优化高等数学课程与思政课程之间的边界。在具体的课堂教学情境中,将知识学习、价值凸显与能力培养进行有机结合。在大学数学类课堂教学中强调辨析社会系统中的数学、复杂性问题解决、工程伦理以及数学价值观的塑造。

基于在线开放的高职技能型课程混合式教学模式探究

“碳达峰碳中和”政策为能源电力行业的转型升级提供了根本遵循。电工技术课程作为能源电力行业的一门专业技能型课程,传统的教学模式已经不能满足该行业对新能源的需求。为了提升能源电力行业技能型课程的教学质量及综合育人质量,本研究以高职在线精品课程“电工技术”教学改革实践为例,探索实施岗位、课程、竞赛、证书与思政教育、劳动教育的有机融通,以及线上线下混合式深度融合的教学方式,构建了“岗课赛证思劳”六位一体混合式教学模式。该模式能够有效提升学习者的学习效果和实践能力,对培养新时代高素质技术技能人才具有一定的借鉴意义。

“电子封装模拟与仿真”混合式教学改革与创新实践

针对“电子封装模拟与仿真”课堂教学手段单一、实验教学环节薄弱、学生工程思维能力较弱、科学精神及创新意识较低的问题,坚持“以学生发展为中心”的教学理念,知识、能力、素养三个维度的教学目标,问题导向、自主探究、科教融合、信息融合、多元评价的混合式教学方法,“生讲师评、生讲众评、以练代讲、讲练结合”的翻转课堂教学模式,多维度融合拓展深化教学资源,重构思想性、科学性、时代性并重,基础理论—模拟仿真—教学实验“三位一体”的教学体系,形成“虚实结合、教研融合、强基立本、自主探究、多元评价”的教学特色,全面提升了学生的自主学习意识及实践创新能力。

THE AUTO-ADJUSTABLE DAMPING METHOD FORSOLVING NONLINEAR EQUATIONS

The general approach for solving the nonlinear equations is linearizing the equations and forming various iterative procedures, then executing the numerical simulation. For the strongly nonlinear problems, the solution obtained in the iterative process is always difficult, even divergent due to the numerical instability. It can not fulfill the engineering requirements. Newton's method and its variants can not settle this problem. As a result, the application of numerical simulation for the strongly nonlinear problems is limited. An auto-adjustable damping method has been presented in this paper. This is a further improvement of Newton's method with damping factor. A set of vector of damping factor is introduced. This set of vector can be adjusted continuously during the iterative process in accordance with the judgement and adjustment. An effective convergence coefficient and quichening coefficient are employed to relax the restricted requirements for the initial values and to shorten the iterative process. Then, the numerical stability will be ensured for the solution of complicated strongly nonlinear equations. Using this method, some complicated strongly nonlinear heat transfer problems in airplanes and aeroengines have been numerically simulated successfully. It can be used for the numerical simulation of strongly nonlinear problems in engineering such as nonlinear hydrodynamics and aerodynamics, heat transfer and structural dynamic response etc.

基于线上线下混合式教学的“三全”评价体系在组织学与胚胎学教学中的探索

目的:研究全过程、全覆盖和全方位的“三全”评价体系在组织学与胚胎学教学中的应用效果。方法:选取2018级和2019级临床医学专业学生为研究对象,从问卷调查、翻转课堂等方面了解“三全”评价体系的实施效果。结果:“三全”评价体系提高学生自主学习能力、批判性思维能力等。结论:“三全”评价体系有助于提高组织学与胚胎学的教学质量。

混合教学法应用于神经内科住院医师规范化培训电生理带教探索

目的:探讨混合教学法应用于神经内科住院医师规范化培训电生理带教中的探索及效果评价。方法:选取杭州市第一人民医院2010年9月至2020年8月参加神经内科住院医师规范化培训的88名住院医师,对照组46名在神经电生理轮转期间采用传统教学法,试验组42名采用CBL联合PBL混合教学方法。对两组进行电生理操作及结果判读考核,并对比两组成绩差别及教学满意度。结果:试验组操作考核(P=0.000)、电生理结果判读考核(P=0.003)、教学满意度(P=0.001)均优于对照组,差别有统计学意义。结论:混合教学法在神经内科住院医师规范化培训神经电生理带教中可以促进教学质量。

互联网混合式教学在风湿免疫科教学中的应用

互联网混合教学模式是利用网络信息技术把传统课堂教学和互联网教学的优势相结合,激发学生学习积极性和主动性,引导学生自主学习,增强学习成绩和效果,扩大教学资源的教学模式。风湿免疫科疾病分类复杂、种类多、临床表现多样、有异质性,疾病与自身抗体间关系纵横交错,涉及基础免疫学知识、理论性强、抽象不易懂,致使诊治困难,是内科教学的重点和难点。在风湿免疫科临床教学中利用互联网混合教学模式,开展以问题为基础的教学法(problem-based learning,PBL)、以案例为基础的教学法(case-based learning,CBL)、形式多样自主学习和互联网混合式教学,将互联网教学和传统教学“有机”结合,引导学生由“大致了解”“体会”的表层学习到“完全理解”“熟练应用”的深层学习,使学生更好地掌握和应用风湿免疫科的相关知识。

新质生产力视域下中国高校科技创新力评价及影响因素研究

习近平总书记立足于我国经济发展时代特征提出新质生产力概念,并作出一系列重要论述。新质生产力是在新技术革命推动下,以信息技术、人工智能为引擎,以科技创新为驱动力的生产力形态,是高质量发展的强劲推动力、支撑力。高校作为国家创新体系的重要组成部分,在基础研究、应用研究、成果转化等方面发挥着重要作用,取得了一批重大科技成果,但还存在着诸多不足,面临不少困难和问题。在习近平总书记关于新质生产力重要论述的指引下,准确把握高校科技创新的重要地位和独特优势,客观评价我国不同地区高校科技创新力发展水平,分析存在的问题,提出对策建议,具有极其重要的意义。文章采用TOPSIS法测算我国31省(自治区、直辖市)高校科技创新力指数,基于空间自相关理论探究我国高校科技创新力指数的空间关联特征,运用泰尔指数分析我国高校科技创新力指数的空间差异性,运用地理探测器原理研究我国高校科技创新力的影响因素及其交互作用。研究结果发现:我国31省(自治区、直辖市)高校科技创新力整体还不强,创新力指数的空间分布不均衡,东部地区明显高于中部和西部地区;空间自相关性显著,上海、江苏、广东、浙江等指数较高省份呈现“高-高”集聚特征,甘肃、海南、新疆、西藏等指数较低省份呈现“低-低”集聚特征;区域间差异明显,东部和西部地区域内差异较中部地区显著,东部地区内部差异逐渐缩小,中部地区内部差异先增大后缩小,西部地区内部差异有所增大;影响我国高校科技创新力发展的主要因素是人力资源、经费投入等,且区域间投入存在明显差异,中部和西部地区投入不足,同时还受区域对外开放和技术需求等因素影响;内部因素交互作用强度大于外部因素,交互作用强度较大的是教学与科研人员数、科技经费当年拨入、成果应用及科技服务项目数、R&D成果应用及科技服务项目经费当年拨入、信息化水平,且信息化水平发挥的作用越来越大。根据研究结论,以习近平总书记关于新质生产力重要论述为指引,从创新投入、资源配置、资源共享、政产学研合作等方面提出对策建议。