High Performance Hydrophobic Interaction Chromatography-A New Approach to Separate Intermediates of Protein Folding──Ⅰ.Separation of Intermediates of Urea-unfolded α-Amylase

Based on the different hydrophobicities of the intermediates of proteins the various conformational intermediates of the refolding of a-amylase originally denatured with 8.0 mol/L urea solution were separated with high performance hydrophobic interaction chromatography(HPHIC). Compared to the separation of the same intermediates with weak anion exchange chromatography and size-exclusion chromatography the result obtained with HPHIC is the best It would be expected that HPHIC may be a strongly potential tool to separate intermediates of some proteins which cannot be, or cannot completely be refolded by HPHIC.

The Application of Interactive Approach in Teaching Extensive Reading

Considering the status-quo of extensive reading and its indispensible role in English learning, this thesis sets out to make a brief study of teaching extensive reading to non-English majors by applying interactive teaching approach. Outlining the applications of the approach and introduction of portfolio assessment to test the learning outcomes, the author intends to explore the effectiveness of teaching extensive reading.

Interactive Approaches in ESL Teaching and Its Application

Traditionally,second language reading was considered as a simple passive decoding process.However,researchers began to study the issue from the psycholinguistic perspectives,and proposed the interactive approach to ESL reading.In this thesis,a brief review is made concerning the related theories.Some strategies are suggested to improve learners’ability in top-down and bottom-up models.Finally,it is pointed out that these two models interact in the reading process,and therefore the teaching methods should also be applied in good combination to improve reading.

Teaching EFL Reading in China through the Interactive Approach

Reading plays a crucial role in English teaching and learning in the Chinese context. The interactive approach is an ef-fective way to search for a solution to students' poor EFL reading comprehension and the improvement of China's EFL readingteaching. Therefore, there is a need to build reading strategies to teach EFL reading through the interactive approach. Meanwhile,some implications of the interactive approach to teaching reading in the EFL classes will be discussed.

Interactive multiobjective optimization using dominance-based rough set approach

We present main ideas of a recently proposed method for interactive multiobjective optimization,which is based on application of a logical preference model built using the Dominance-based Rough Set Approach(DRSA).

An Interactive Strategies-based Approach To Reading Teaching

An interactive strategies-based approach to reading teaching involves both bottom-up and top-down skills,which if developed conjointly,will not only improve students'reading comprehension and reading rate but also facilitate their ability of writing.

Three Approaches to Teaching EFL Reading

Many approaches to teaching reading are available now.However,what these approaches are and how to select one from them is still puzzling many English teachers.The paper analyses three current perspectives on how to teach reading and discusses how these affect the way reading is taught and gives an evaluation of these approaches.

Fluid-structure interaction simulation of three-dimensional flexible hydrofoil in water tunnel

The closely coupled approach combined with the finite volume method （FVM） solver and the finite element method （FEM） solver is used to investigate the fluid-structure interaction （FSI） of a three-dimensional cantilevered hydrofoil in the water tunnel. The FVM solver and the coupled approach are verified and validated by compar- ing the numerical predictions with the experimental measurements, and good agreement is obtained concerning both the lift on the foil and the tip displacement. In the noncav- itating flow, the result indicates that the growth of the initial incidence angle and the Reynolds number improves the deformation of the foil, and the lift on the foil is increased by the twist deformation. The normalized twist angle and displacement along the span of the hydrofoil for different incidence angles and Reynolds numbers are almost uniform. For the cavitation flow, it is shown that the small amplitude vibration of the foil has limited influence on the developing process of the partial cavity, and the quasi two-dimensional cavity shedding does not change the deformation mode of the hydrofoil. However, the frequency spectrum of the lift on the foil contains the frequency which is associated with the first bend frequency of the hydrofoil.

Study of the learner-centered interactive teaching model in the EFL classroom

With the change of the teaching approach, people have realized that language is not only knowledge, but also a skill and ability. Today＇s English teaching should emphasize the college student＇s English comprehensive skills. This paper is intended to introduce the traditional English teaching method, and by using the comparison of the force-feeding mode of English teaching with interactive approach to language pedagogy. It emphasizes the analysis of the modem communicative teaching mode, and it also elaborates the English teacher＇s role in interactive class, and proves the effectivity and feasibility of the theory based on the student-centered mode.

新文科背景下课程思政融入地方高校外语金课建设的路径探索

新文科背景下,课程思政融于高校外语金课建设体现了外语专业内涵建设的方向。外语金课在课程思政指引下获得方向性引导和理论支撑,有利于提升金课教学水平;课程思政以外语金课建设为依托,将德育目标贯穿教学全过程,有利于提高人才培养质量。基于新文科教育指导下某地方高校外语金课建设的实践,分析课程思政与外语金课建设的联动效应,并探索课程思政融入外语金课建设的有效路径,指出新文科教育推动了外语金课与课程思政的融合,对构建中国特色的外语课程话语体系起到了重要推动作用。

Effects of hurricane forward speed and approach angle on storm surges: an idealized numerical experiment

The effects of hurricane forward speed(V)and approach angle(θ)on storm surge are important and a systematic investigation covering possible and continuous ranges of these parameters has not been done before.Here we present such a study with a numerical experiment using the Finite Volume Community Ocean Model(FVCOM).The hurricane track is simplified as a straight line,such that V andθfully define the motion of the hurricane.The maximum surge is contributed by both free waves and a forced storm surge wave moving with the hurricane.Among the free waves,Kelvin-type waves can only propagate in the down-coast direction.Simulations show that those waves can only have a significant positive storm surge when the hurricane velocity has a down-coast component.The optimal values of V andθthat maximize the storm surge in an idealized semi-circular ocean basin are functions of the bathymetry.For a constant bathymetry,the maximum surge occurs when the hurricane approaches the coast from the normal direction when the free wave generation is minimal;for a stepped bathymetry,the maximum surge occurs at a certain acute approach angle which maximizes the duration of persistent wind forcing;a step-like bathymetry with a sloped shelf is similar to the stepped bathymetry,with the added possibility of landfall resonance when the free and forced waves are moving at about the same velocity.For other cases,the storm surge is smaller,given other parameters(hurricane size,maximum wind speed,etc.)unchanged.

Numerical Study on Flow Around Modern Ship Hulls with Rudder-Propeller Interactions

Reducing the fuel consumption of ships presents both economic and environmental gains. Although in the past decades,extensive studies were carried out on the flow around ship hull, it is still difficult to calculate the flow around the hull while considering propeller interaction. In this paper, the viscous flow around modern ship hulls is computed considering propeller action. In this analysis, the numerical investigation of flow around the ship is combined with propeller theory to simulate the hull-propeller interaction. Various longitudinal positions of the rudder are also analyzed to determine the effect of rudder position on propeller efficiency. First, a numerical study was performed around a bare hull using Shipflow computational fluid dynamics(CFD) code to determine free-surface wave elevation and resistance components.A zonal approach was applied to successively incorporate Bpotential flow solver^ in the region outside the boundary layer and wake, Bboundary layer solver^ in the thin boundary layer region near the ship hull, and BNavier-Stokes solver^in the wake region. Propeller open water characteristics were determined using an open-source MATLAB code Open Prop, which is based on the lifting line theory, for the moderately loaded propeller. The obtained open water test results were specified in the flow module of Shipflow for self-propulsion tests. The velocity field behind the ship was recalculated into an effective wake and given to the propeller code that calculates the propeller load. Once the load was known, it was transferred to the Reynolds-averaged Navier-Stokes(RANS) solver to simulate the propeller action. The interaction between the hull and propeller with different rudder positions was then predicted to improve the propulsive efficiency.

Vygotskian Approaches to Interlanguage Fossilization

During the process of language acquisition, interlanguage fossilization is a common phenomenon among second language learners. Based on Vygotskian approaches, this paper looks at the causes of interlanguage fossilization, including social identity, learners' motivation, the influence of one's mother tongue and learning styles. By vividly incorporating my own language learning experience, this paper intends to explain how theory can be applied to practice; thereby attempting to shed light on second language learning and teaching. In conclusion, this paper suggests that teachers should get to know their students by paying attention to the most influential factors and encourage interpersonal interaction.

中国文化主体性建构的基本进路探究——基于马克思主义文化交往思想的研究视域

马克思主义文化交往思想是认识文化主体性建构的重要理论基础,以马克思主义文化交往思想为研究视域,结合中国共产党百年文化建设的艰辛探索,可以深入把握“自我发展、回应挑战、开创新局”的文化主体性建构基本进路。从建构主体看,中国共产党是建构的领导者,人民群众是建构的主体力量。从建构的基本进路看,“自我发展”的文化主体性是在优秀传统文化自我超越和创新性发展的进程中建立起来的;“回应挑战”的文化主体性是在中西文化交流的过程中建立起来的;“开创新局”的文化主体性是在坚持守正创新不断推进“两个结合”的历史进程中建立起来的。

Importance on Improvement of Classroom Interaction

本文分析了教师在课堂教学中所起的主导作用,引出以学生为主体的教学风格,同时对传统的语法讲解为主要内容的教学方法和交际法教学进行了得失比较,对交际法实施的原则进行了讨论。

我国理工类研究生与导师关系及互动途径研究

在当前国内外新技术和基础科学领域竞争日益激烈的时代背景下,研究生与导师的关系趋于复杂化。如何构建研究生与导师之间的和谐关系,是新时代高校和研究机构研究生教育急需解决的问题。在问卷基础上,通过建立分类分级指标体系,定量表征了我国理工类研究生与导师之间的关系现状和互动模式。发现我国导师对研究生关怀程度为38.1±16.3%、指导程度为74.1±19.1%,合作程度为50.0±25.2%。研究生与导师的关系属于“指导+合作+关怀”复合型师生关系,但偏向导—学关系。研究生与导师之间为目标互动、全面互动、放羊互动和家庭互动模式的占比分别为52.3%、27.8%、17.8%和2.1%。研究生学位类别和个人经历、导师年龄、性别和职务、学生关系等都可在一定程度上影响师生关系,增加与研究生的非科研互动、促进情感交流有利于构建全面互动的师生关系。

亲子互动对幼儿学习品质的影响——来自CFPS多期数据的证据

基于“中国家庭追踪调查”数据库的多期数据,探讨亲子互动对3-6岁幼儿学习品质的影响效应。通过回归分析发现,亲子互动对幼儿坚持性、组织性、好奇心、独立性、自我调节及条理性具有显著的正向影响。亲子互动对学习品质的影响在性别、留守幼儿和城乡户口中存在异质性。建议家长重视亲子互动对培养幼儿学习品质的意义,树立正确的互动理念;增加亲子互动时间和提升亲子互动质量;针对亲子互动效应的群体差异,差别化培养幼儿的学习品质。

译者行为互动关系分析

本文借用译者行为“文本-行为-社会”三位一体互动关系分析框架和分析方法,结合文学翻译和应用翻译实例,分析了译者行为因素之间的互动关系,证明人本路径译者行为研究的个性化特征、分析方法和三位一体分析框架对于解决问题与解释现象的普适性和解释力。

深度学习视域下的SPOC混合式教学模式研究--以交互设计课程为例

深度学习视域下的SPOC混合式教学模式强调培养学生的专业核心技能、自学能力及社会适应能力,注重线上线下教学内容的深化与重构,是新媒体时代教育发展的趋势。交互设计课程的混合式教学模式,以培养复合型设计人才为教学目标、以项目流程导向为教学形式、以“全场景”为教学空间、以“两境三合”为教学手段,构建以学生为主体的教学体系。输送优质的课程资源、构建多元化的教师队伍、打造个性化的学生团队、注重“多元考核”的教学评价等措施,有利于推动混合式教学模式的实施,培养新时代复合型人才,促进当代教育数字化转型。

基于人机协同的师幼互动评价路径研究

本研究分析了教育数字化转型背景下传统师幼互动中存在的现实问题,针对幼儿园师幼互动评价的现有挑战,如评价方法主观性较强和缺乏个性化等,构建了一个融合人工智能技术与教育评价理论的人机协同评价模型。以学习发生知行理论、第三代活动理论等为指导,分析了师幼互动中评价主体与评价内容的转变,在此基础上构建了基于人机协同的师幼互动评价路径。通过具体案例实践该评价路径,发现人机协同的评价方式能够促进幼儿全面发展,改善师幼互动质量,提升幼儿教师数字素养,提高教学活动质量,并探讨了人机协同评价方式在师幼互动评价中的应用前景和挑战,以期为人机协同的师幼互动高质量评价提供理论指导与实践借鉴。