Model test of negative Poisson’s ratio cable for supporting super-largespan tunnel using excavation compensation method

In recent years,there is a scenario in urban tunnel constructions to build super-large-span tunnels for traffic diversion and route optimization purposes.However,the increased size makes tunnel support more difficult.Unfortunately,there are few studies on the failure and support mechanism of the surrounding rocks in the excavation of supported tunnel,while most model tests of super-large-span tunnels focus on the failure characteristics of surrounding rocks in tunnel excavation without supports.Based on excavation compensation method(ECM),model tests of a super-large-span tunnel excavation by different anchor cable support methods in the initial support stage were carried out.The results indicate that during excavation of super-large-span tunnel,the stress and displacement of the shallow surrounding rocks decrease,following a step-shape pattern,and the tunnel failure is mainly concentrated on the vault and spandrel areas.Compared with conventional anchor cable supports,the NPR(negative Poisson’s ratio)anchor cable support is more suitable for the initial support stage of the super-large-span tunnels.The tunnel support theory,model test materials,methods,and the results obtained in this study could provide references for study of similar super-large-span tunnels。

从协同到求异:指向教师专业发展的U-S合作优化研究

U-S合作是教师专业发展的重要举措。审视U-S合作的历程可知,U-S合作致力于多方位促进教师专业发展,协同逐渐成为U-S合作促进教师专业发展的底层逻辑。随着合作的持续推进,这一底层逻辑在促进教师专业发展方面所潜在的矛盾也逐渐暴露出来。一方面,大学与中小学的文化差异阻碍了协同的深度发生;另一方面,为了实现大学与中小学的协同,双方不得不做出诸多的妥协,在妥协的语境下,中小学教师往往面临着主体性丧失的风险。与之相对,在求异这一核心理念的引领下,跨界学习旗帜鲜明地提出了“差异即资源”的主张,并通过互动场域的营造和互动系统的建构,为“差异即资源”提供了现实可能,也为优化U-S合作提供了新的思路。

On the Reconstruction of Teachers’Role of Business English Reading Classroom Teaching Based on Literature Circle

Business English reading teaching under the mode of“literature circles”focuses on cultivating students’autonomy in reading,group cooperation,and the exchange of ideas among group members.In this teaching mode,teachers are no longer the masters of the reading classroom,but the helpers,participants,and researchers in the process of students’reading.The reconstruction of teachers’role can promote the benign development of relationship not only between teachers and students,but also between students and students,inject new impetus and vitality into the classroom,and improve students’reading literacy.

Analysis and Control of S/SP Compensation Contactless Resonant Converters

非接触谐振变换器的补偿方式直接影响到系统的增益特性和控制特性，是非接触能量传输技术的研究重点之一。考虑到非接触应用场合中的变参数特性，论文提出了一种可适应负载及变压器参数变化的新型的串／串并（series／seriesparallel，S／SP）补偿拓扑。该补偿拓扑具有增益交点处输入相角为零，且增益交点值固定不随变压器耦合系数而改变的优点。论文对该新型补偿拓扑进行了特性分析；并针对其增益交点处输入相角为零以及增益交点处增益曲线相对平坦的优点，提出锁相环（phaselockloop，PLL）控制和恒频控制2种控制策略。采用所提出的补偿方式，设计了一台PLL控制60W的谐振变换器和一台1．5kW恒频控制的原理样机。实验结果与理论分析一致，验证了所提出的新型补偿方式的优点。1．5kW的样机在10cm气隙满载条件下效率达到95．2％。

High-frequency compensation for seismic data based on adaptive generalized S transform

The low-pass fi ltering eff ect of the Earth results in the absorption and attenuation of the high-frequency components of seismic signals by the stratum during propagation.Hence,seismic data have low resolution.Considering the limitations of traditional high-frequency compensation methods,this paper presents a new method based on adaptive generalized S transform.This method is based on the study of frequency spectrum attenuation law of seismic signals,and the Gauss window function of adaptive generalized S transform is used to fi t the attenuation trend of seismic signals to seek the optimal Gauss window function.The amplitude spectrum compensation function constructed using the optimal Gauss window function is used to modify the time-frequency spectrum of the adaptive generalized S transform of seismic signals and reconstruct seismic signals to compensate for high-frequency attenuation.Practical data processing results show that the method can compensate for the high-frequency components that are absorbed and attenuated by the stratum,thereby eff ectively improving the resolution and quality of seismic data.

师范生U-G-S培养模式实践探索与路径优化——基于“优师计划”背景

师范生U-G-S培养模式实践已取得诸多成效,如多方配合助力师范生培养,促进区域均衡,提升基层教学水平等。但师范生U-G-S培养模式在实践中也存在突出问题,如高校一方主导、其他方参与度低,难以高效协同,培育方案与实际岗位需求存在适配偏差等。剖析“优师计划”对优化师范生U-G-S培养模式的启发,探索以当地政府为统筹、师范院校为关键、中小学校为导向、师范生为主体的“四位一体”优化路径,有助于提高师范生培育成效。

Emotional Value Care to Promote Emotional Communication Between Teachers and Students Under the New Era of Education Mode

With the development of the times and the progress of the society,the ancient education mode can no longer meet the requirements of the times.The concept of educating people must keep pace with the times.The way teachers and students get along is no longer like in ancient times,where teachers teach students to listen.In the new era,it is necessary to build a new model of interaction between teachers and students.If educators pay attention and come to understand students’psychology,listen to students’aspirations,tend to students’emotions,grow in love for education,and treat students from their hearts,they would be able to win the favor of students.Paying attention to students’emotional value can promote emotional communication between teachers and students.It is possible to adapt to the requirements of the new era for the construction of morality and ethics among teachers by caring for students’emotional value.

“优师计划”背景下师范生U-G-S培养模式价值、问题及对策

从“优师计划”背景下师范生U-G-S培养模式价值分析入手,剖析“优师计划”背景下师范生U-G-S培养模式中地方政府、师范院校、中小学校、师范生四个基本要素各自存在问题,提出“四位一体”师范生U-G-S培养模式提升对策,以当地政府为主导、以师范院校为引领、以中小学校为核心、以师范生为主体,统筹各方培养资源和优势力量,激活多方利益主体意愿,助力乡村卓越教师的培养。

The Impact of Comment Style on Learners’ Essay Revisions

This paper investigates how the type of written feedback provided by teachers affects learners’ ability to revise essays. A total of 120 participants participated in two rounds of essay composition and feedback delivery. The findings indicate that learners who receive comments in the form of questions are more prone to make revisions compared to those receiving statements or imperatives. These results hold significant implications for educators and the ways they utilize written feedback to enhance learners’ writing skills.

基于U-G-S合作的地方师范类院校教师教育模式研究

高校—政府—中小学(university-government-school,U-G-S)合作是各国高度重视的教师教育模式,该模式由高校、政府和中小学结成战略合作伙伴关系,协同促进未来教师的培养。基于U-S合作的内涵分析,梳理了美国教师“专业发展学校”模式、英国“以中小学为基地的教师培训学校”模式、法国教师教育“职前职后一体化”模式、芬兰“研究本位”的教师培养模式等国外有代表性的未来教师教育模式,阐述了基于U-G-S合作的未来教师教育模式在中国的发展状况。结合应用型大学关于教师教育的探索实践,对基于U-G-S合作的地方师范类院校教师教育模式优化提出建议。

高质量的“U-G-I-S-C”教师教育模式构建研究

“U-G-I-S-C”教师教育模式能满足教师教育一体化发展、大学和中小学共同利益实现与优势发挥最大化、实现中国式现代化和教育强国建设培养卓越中小学教师的需要。为进一步提高我国教师教育质量,可从以下几方面优化“U-G-I-S-C”教师教育模式运行策略:明晰合作理念和共同利益目标,合作关系从松散走向共生;建立平等协商和高效工作机制,合作效果从单兵作战走向互惠共赢;共同发展教育作为爱的事业,从利益联合走向文化融合;增进技术赋能,促进教师培养从断裂式走向全程浸入式并基于循证的教师教育过程;完善保障机制,汇聚各方组织的巨大合力。

Important Guarantee for The Basic Rights of Citizens——China's State compensation system

A common folk can sue an official? This was hardly possible in the past in China where the old feudalistic tradition dies hard. But this is really possible today when the common people cannot only sue officials and also get compensation if they are wronged. State compensation system It would be inevitable for government functionaries to cause damages to some citizens, legal persons or other organizations in the course of their management of the society. That is why China has established a State compensation system to compensate for the damages to citizens, legal persons and other organizations caused by government functionaries in exercising their power.

A Survey into Teachers＇ Roles in Web-based College English Autonomous Learning

The paper, with the backdrop of web-based autonomous learning put forward by the recent college English teaching reform, aims to explore teachers＇ roles in this learning process in students＇ perception through the means of questionnaires and interviews. It further analyzes the possible reasons why students perceive their teachers＇ roles in such a way, in the hope of providing some implications for web-based college English autonomous learning.

成效·局限·改革:“G-U-S”三位一体协同育师机制审思

“G-U-S”三位一体协同育师机制是指,政府、高校、中小学(含幼儿园)三方各司其职,责任共担、协同培育教师的一种制度形式与工作方式。现有的三位一体协同育师机制尽管促进了教师培育成效提高、教师教育资源整合、区域教育均衡发展及教师专业水平持续提升,但仍然存在相关决策主体单一、三元主体权责不明、培育方案不够成熟、协同培育管理不够协调等局限。为进一步提升“三位一体”协同育师机制的成效,理应构建具有一定行政职能的协同育师主体联盟,明晰“三位”主体各自的权责,完善协同育师培育方案,促进协同培育管理更加协调。

智慧环境下的“U-S双师”课堂:设计、实施与评价

为破解教师教育者缺乏中小学教学经验、师范生在真实情境中实践机会有限等问题,文章基于协同创新和深度学习理论,系统构建了智慧环境下的“U-S双师”课堂教学设计框架,提出网络直播、真情境教学和课例展示三种双师课堂实施路径以及表现性评价设计步骤,并将其用于实践,开展行动研究。文章认为,智慧环境下的“U-S双师”课堂具有师生协同的互惠性、教学过程的进阶性和学习环境的智能性,是高校教师教育者与中小学教师共同开发课程内容,通过线上线下联袂执教或线下共同教学等形式,为师范生提供多元参与体验和个性化指导机会,促进师范生知识迁移、问题解决和实践创新的一种课堂形态。实践表明,师范生肯定“U-S双师”课堂的教育价值,能够积极参与并顺利完成学习任务,获得较为扎实的数学教学知识,形成创新思维能力和自我发展能力,但是评课交流方面的高阶思维能力亟待加强。

On Teacher's Feedback from the Perspective of Communication

Classroom interaction involves many aspects,among which teacher's feedback is an important element.This paper aimes at studying teacher's feedback from the perspective of communication.It first discusses the definition of teacher's feedback and analyses the functions of teacher's feedback in the classroom interaction and then explores some strategies for effective feedback based on communication theory.

Vagueness in Teachers' Spoken Language

Politeness symbolizes human civilization,and is one of conduct codes of human beings.As a social activity,language use is subject to this code as well.Pragmatic vagueness is a common phenomenon in spoken discourse.Furthermore,it is an important strategy widely used in teachers' spoken language.Based on the politeness principle,this thesis explores the pragmatic vagueness by analyzing teachers' spoken discourse.Employing pragmatic vagueness in teacher's spoken language can smooth the relationship between teachers and students,and help teachers gain foremost effect on the education to their students.

基于PDSA循环的教师课例研修模式及应用实证

PDSA(计划—执行—审视—改进)循环是一种质量管理行动框架,因其能有效地发现并解决问题,逐渐在教育领域获得不断实践和发展。为解决当前课例研修运行模式和活动设计的规范性和实效性不足等问题,在PDSA循环的指导下,重构了教师课例研修模式,开展了两轮PDSA课例研修活动,并使用准实验研究和课堂观察相结合的方法验证了基于PDSA循环的教师课例研修模式的应用效果。研究结果表明,基于PDSA循环的教师课例研修既提高了学生学习兴趣和满意度,也提升了教师信息化教学能力。

Study on the Roles of a Teacher in College English Teaching Mode Based on the Internet

With the rapid development of modern technology and all-round reform in national college English teaching,Internet-Based teaching mode has become a new trend of college English teaching.Therefore,in the new teaching mode,the teacher should turn an inculcator into an instructor,facilitator and participant in teaching;a passive user of textbook into a dominant and modeler of courses;a planner of teaching specific tasks into an organizer of teaching process,a helper and shepherd of learning knowledge.

Two Necessary Elements of Being A Good Language Teacher

How to be a good language teacher has always been a hot topic in both academic and practical areas.This passage discusses about two elements which are important in the view of the author.A good lesson and the role of a teacher have been discussed in this passage.