Sub-6GHz Assisted mmWave Hybrid Beamforming with Self-Supervised Learning

In this paper,we propose a sub-6GHz channel assisted hybrid beamforming(HBF)for mmWave system under both line-of-sight(LOS)and non-line-of-sight(NLOS)scenarios without mmWave channel estimation.Meanwhile,we resort to the selfsupervised approach to eliminate the need for labels,thus avoiding the accompanied high cost of data collection and annotation.We first construct the dense connection network(DCnet)with three modules:the feature extraction module for extracting channel characteristic from a large amount of channel data,the feature fusion module for combining multidimensional features,and the prediction module for generating the HBF matrices.Next,we establish a lightweight network architecture,named as LDnet,to reduce the number of model parameters and computational complexity.The proposed sub-6GHz assisted approach eliminates mmWave pilot resources compared to the method using mmWave channel information directly.The simulation results indicate that the proposed DCnet and LDnet can achieve the spectral efficiency that is superior to the traditional orthogonal matching pursuit(OMP)algorithm by 13.66% and 10.44% under LOS scenarios and by 32.35% and 27.75% under NLOS scenarios,respectively.Moreover,the LDnet achieves 98.52% reduction in the number of model parameters and 22.93% reduction in computational complexity compared to DCnet.

Effects of Perceived Teacher Support on Student Behavioral Engagement in the Blended Learning Environment:Learning Experience as a Mediator

Blended learning(BL)has been widely adopted to improve students’academic achievements in higher education.However,its success relies mainly on student engagement,which plays an essential role in active learning and provides a rich understanding of students’experiences.The study utilized three self-designed scales-the Teacher Support Scale,Student Engagement Scale,and Student Learning Experience Scale-to gauge and examine the impact and relationship between perceived teacher support,student behavioral engagement,and the intermediary role of learning experiences.A cohort of 899 college students undertaking the obligatory College English course through BL modes across five Chinese universities actively participated by completing a comprehensive questionnaire.The results showed significant correlations between perceived teacher support,learning experience,and behavioral engagement.Perceived teacher support significantly predicted students’behavioral engagement,with socio-affective support exerting the most substantial predictive effects.All predictive effects were partially mediated by learning experience(learning mode,online resources,overall LMS-based learning,interaction with their instructor and peers,and learning outcome).The influence of perceived teacher support on behavioral engagement differed between students who reported the most positive(vs.negative)learning experiences.Suggestions for further research are offered for consideration.

Research on the Effective Path of Cultivating Students’Independent Learning Ability by Analyzing Blended Teaching

Blended teaching in colleges and universities can realize the effective cultivation of students’independent learning ability on the basis of respecting the students’subjective status and demonstrating the concept of human-centered teaching,and then drive the curriculum teaching to realize innovative changes.However,in the current environment,colleges and universities are still facing obstacles such as traditional teachers’concepts,insufficient students’motivation,irrational settings of online and offline teaching,and backward teaching evaluation system,which seriously affect the enhancement of students’independent learning ability.Therefore,colleges and universities should update the teaching concepts of teachers,improve the comprehensive quality of teachers,cultivate the interest of students in participating in blended teaching,and scientifically arrange the online and offline teaching and the integration of both sides in blended teaching to ensure the effective implementation of blended teaching.At the same time,we should pay attention to the innovation of the evaluation system of blended teaching,fully examine the cultivation effect of students’independent learning ability under the perspective of blended teaching,and provide assistance for improving students’independent learning ability.

Application Effect of Blended Education Strategy Based on the Learning Pass Platform in Phase III Cardiac Rehabilitation of Patients with Coronary Artery Disease

Objective:To explore the application effect of the blended education strategy based on the Learning Pass platform in the phase III cardiac rehabilitation of patients with coronary artery disease.Methods:90 patients diagnosed with coronary artery disease in the Department of Cardiology of our hospital from January 2019 to January 2021 were selected and divided into the control group and the experimental group according to the method of randomized numerical table,with 45 cases in each group.Both the experimental group and the control group received pre-discharge cardiac rehabilitation education by conventional means.The control group received education and supervision information via WeChat after discharge,while the experimental group joined the Learning Pass platform to receive online and offline hybrid education and supervision,with online as the mainstay and offline as a supplement.The disease cognitive level,self-management skills,quality of life,medication adherence,and emotional status of the two groups were compared.Results:The disease cognitive levels in the experimental group were significantly higher than those of the control group(P<0.05);the scores of the experimental group in terms of quality of life,self-management skills,and medication adherence were significantly higher than those of the control group(P<0.05);and the scores of anxiety and depression in the experimental group were significantly lower than those of the control group(P<0.05).Conclusion:The blended education strategy based on the Learning Pass platform has a significant application effect in phase III cardiac rehabilitation of patients with coronary artery disease.It can improve patients’disease cognitive level,self-management skills,and quality of life,and provide a basis for improving patients’prognosis.

从大学英语教学透视Blended Learning

本文从大学英语教学和 Blended L earning的产生、发展等多视角透视其概念内涵 ;在计算机及网络技术已经全面且实质性地应用于我国英语教学的今天 ,正确地把握 Blended L earning的本质将有助于教育技术在英语教学改革中发挥越来越重要的作用。

Blended Learning在高校教学改革中的应用研究——以《现代远程教育》课程为例

信息技术在很大程度上改变了高校教学环境和教学条件,但教学理念和教学方法改变却很迟缓。文章以《现代远程教育》课程为例,论述了这门课程从设计、实施到评价的教学改革过程,指出Blended Learning为高校教学改革提供了一个新的思路和方法。

Blended Learning模式在烧伤科临床教学中的应用

混合式学习模式旨在提取传统课堂教学方式与E-Learning教学模式的优点并加以有效整合,随着教学改革的逐步深入,混合式学习模式受到越来越多的关注。文章将结合烧伤科临床教学实际,对依托于Blended Learning模式的教学课程设计进行阐述。

Blended Learning:数字化学习方式的新趋势

Blended Learning是教育技术关注的热点,是传统的课堂学习与E-learning由对立走向融合的产物。文章主要探讨了Blended Learning产生原因及其教学设计的步骤,并通过具体案例进行了说明。

网络环境下Blended Learning平台的设计与实施

信息技术在很大程度上改变了高校教学环境和教学条件,通过Blended Learning平台,能把传统学习方式的优势和网络教学的优势结合起来,发挥其混合式教学的特点与优势,就此提出了相应的设计原则与实现方法。学生通过该平台进行自主学习,不仅掌握基础知识和基本技能,还培养了解决问题、质疑问题的能力,积极探索的研究精神。

Blended Learning与英语听力自主学习的实证研究

基于对Blended Learning内涵的阐述,对混合式学习划分为:教学计划的制定与自主学习;有效的进行听力策略训练;任务设置与自主学习;教学模式的设计与自主学习;合理监控与自主学习,并结合具体的案例展示混合式教学的效果。

Blended Learning在运动系统疾病课程教学中的应用研究

介绍了华中科技大学附属同济医院外科教研室自2011年初开始在运动系统疾病理论和临床教学中使用混合学习教学模式,并根据实际情况制定教学计划和内容,同时,结合传统的课堂授课、以问题为基础的学习和专科信息技术平台的优势,进行教学活动和教学评估的做法。指出混合学习教学模式能充分发挥教师的指导作用和学生学习的主动性,是一种较为可行和有效的学习模式。

混合学习(Blended Learning)教学模式研究

混合学习(Blended learning)作为大学英语教学一种新的教学模式,强调实现传统以教为中心的优势和以学为中心教学模式的优势相结合,实现了传统教学模式和多媒体网络化教学模式的融合。结合江苏大学教学改革的实践经验,采用问卷调查方式分析了教师在适应新的教学环境中所遇到问题的原因,结果表明:教师对Blended Learning的教学模式有较高的认同感,愿意采用这种教学模式积极进行教学活动。因此,要改变教学理念和提高教学能力,必须强化学术意识、注重教学研究;强化角色意识,践行"学教兼重"的教学理念;强化创新意识,改变传统教学方法;强化现代教育技术,营造新型教学环境。

Blended Learning与研究生外语教学

Blended Learning(混合式学习)的精髓是把传统课堂教学和多媒体网络教学的优势结合起来。在研究生外语教学中应用Blended Learning理论,就要求在课程设置、教学模式、教学方法和教学评估等方面,把不同的教学要素适时、适地的混合起来,以达到最佳教学效果。

Blended Learning模式在胸心外科临床教学中的应用探讨

胸心外科临床实习带教时间短,任务重。根据胸心外科教学的特点,结合临床教学实际经验,在胸心外科临床实习教学中使用了混合学习法(Blending Learning),提高了学习效果。文章探讨在胸心外科临床带教中应用混合教学模式的一些经验和体会。

Blended Learning在高校C语言教学的应用

本文介绍了针对高等学院培养学生的目标,进行混合学习在C语言教学中的应用,教学主要针对BL(混合学习)课程实施的四个关键环节进行教学设计。

口译的Blended Learning应用模式构建

混合式学习将传统课堂教学和网络数字化学习的优势相结合,有效提高学生的学习效果。技能训练是口译教学的核心内容,课堂内外需花大量时间。利用现代信息技术,并发挥课堂人际真实交流的便利,构建口译的混合式学习应用模式,促进学习者口译技能的掌握。

Blended-learning—信息技术环境下外语教学模式的反璞归真

混合式学习是教育界在对信息化教学反思的基础上形成的一个重要的新理念。混合式学习在发挥网络学习优势的同时对传统教学重新加以关注,以期以最低的投入获得最高的学习效率。本文通过着重阐释混合式学习重新出现的必然性及其全新的内涵,对信息技术环境下外语教学模式进行冷静的思考。

Blended Learning理论在大学计算机课程教学中的应用

本文在分析国内外研究成果的基础上对BL进行阐述,从大学教育的角度,结合具体的计算机课程教学,指明其对教学的指导意义并给出教学设计的具体步骤,以期能改进现有的教学方式方法。

基于Blended Learning思想的网络课程开发

借鉴Blended Learning思想,通过对《面向对象程序设计(Java)》网络课程的开发,给出了一种新的教育思想下的网络课程开发和应用的新途径。学生通过网络课程学习,不仅掌握基础知识和基本技能,还培养了解决问题、质疑问题的能力,积发探索研究精神。

基于Blended Learning的微课网络课程平台设计

随着教学信息化的迅猛发展,各大高校都在推进微课课程改革,这就对以往的网络课程平台提出了新的挑战。Blended Learning融合了传统面对面课堂教学和E-Learning(即数字化或网络化学习)两种学习方式的优点,有利于学生能力的全面发展,而微课是基于网络化学习环境下的核心资源。因此,研究基于Blended Learning的微课网络课程平台设计具有重要的理论和实践意义。