The Reform Process of English Medium Instruction in Korean Higher Education

In the context of the internationalization of higher education,many non-English speaking countries,from Europe to Asia,are promoting English as a medium of instruction(EMI).The EMI in South Korea started earlier and developed rapidly under the promotion.From the initial“Study Abroad in Korea Plan”to the World Class University(WCU)and Brain Korea 21st century(BK21)PLUS programs,with the support and guidance of the government,South Korea’s higher education has made significant progress,with the global top 100 universities in QS increasing from 1 to 6 in South Korea.

The Challenges of Microelectronics for the Future Digital Society: The Roles of Thin Film Technologies and of the Higher Education

The new digital society is based on Internet of Things (IoT) and related connected objects are becoming more prevalent around the world. This evolution implies innovation in many areas of technology, the heart of which is microelectronics. Connected objects involve many technological components and functions that are directly dependent of the microelectronics capabilities. If the perspectives are exciting, several challenges are appearing. The first is related to the energy consumption of all these objects, which will become enormous by 2030, and unrealistic by 2040. The second is human resources concern. The future engineers and PhD will have many obstacles to overcome. A way to face these challenges is to involve more and more new thin film technologies that must be combined with VLSI ones, and to better train students to this domain with enough know-how and with a large spectrum of knowledge suitable for multidisciplinary applications. The French national network for Higher Education in microelectronics has adopted this strategy. After presentation of the challenges, this paper deals with the innovative activities of the French network focused on thin film technologies, in order to face the challenges in a short future.

Effect of Magnetohydrodynamic on Thin Films of Unsteady Micropolar Fluid through a Porous Medium

In This paper, we deal with the study of the effect of magnetohydrodynamic on thin films of unsteady micropolar fluid through a porous medium. These Thin films are considered for three different geometries. The governing continuity, momentum and angular momentum equations are converted into a system of non-linear ordinary differential equations by means of similarity transformation. The resulting system of coupled non-linear ordinary differential equations is solved numerically by using shooting method. A representative set of numerical results in the three thin film flow problems for velocity and micro-rotation profiles are discussed and presented graphically. A comprehensive parametric study is carried out to show the effects of the micropolar fluid parameters, magnetic field parameter, permeability parameter and etc. on the obtained solutions.

The Current Situation, Problems, and Suggestions of Film and Television Education in Primary and Middle Schools

This study investigates the current situation of the film and television education in primary and secondary schools in China. The purpose is to find out the problems existing in the current film and television education in primary and secondary schools, and give improvement measures. A questionnaire was designed in this study and teachers in 89 primary and secondary schools in Liaocheng City, Shandong Province filled in the questionnaires. A total of 355 valid questionnaires were collected. This study analyzed the survey data, and drawn a series of conclusions about the current situation of film and television education in primary and secondary schools on the basis of data analysis. Based on the results of the survey, some suggestions are given to provide reference for the development of film and television education in primary and secondary schools.

HOMOGENIZATION OF A STATIONARY NAVIER-STOKES FLOW IN POROUS MEDIUM WITH THIN FILM

The article studies the homogenization of a stationary Navier-Stokes fluid in porous medium with thin film under Dirichlet boundary condition.At the end of the article,＂Darcy＇s law＂is rigorously derived from this model as the parameter ε tends to zero,which is independent of the coordinates towards the thickness.

Discussion on the Problems Faced by Film and Television Education and the Development Trends in the New Media Environment

With the development of the economy,film and television education has gradually received more and more attention.With the rapid development of new media technologies,there are still some problems in film and television education in the new media environment.This paper mainly analyzes the problems faced by film and television education in the new media environment,and the development direction of film and television education in the new media era,and explores the forms of film and television education and film industry integration.

Study of Ge_2Sb_2Te_5 Film for Nonvolatile Memory Medium

The amorphous Ge2Sb2Te5 film with stoichiometric compositions was deposited by co-sputtering of separate Ge, Sb, and Te targets on SiO2/Si (100) wafer in ultrahigh vacuum magnetron sputtering apparatus. The crystallization behavior of amorphous Ge2Sb2Te5 film was investigated by X-ray diffraction (XRD), atomic force microscopy (AFM) and differential scanning calorimetry (DSC). With an increase of annealing temperature, the amorphous Ge2Sb2Te5 film undergoes a two-step crystallization process that it first crystallizes in face-centered-cubic (fcc) crystal structure and finally fcc structure changes to hexagonal (hex) structure. Activation energy values of 3.636±0.137 and 1.579±0.005 eV correspond to the crystallization and structural transformation processes, respectively. From annealing temperature dependence of the film resistivity, it is determined that the first steep decrease of the resistivity corresponds to crystallization while the second one is primarily caused by structural transformation from 'fcc' to 'hex' and growth of the crystal grains. Current-voltage (Ⅰ-Ⅴ) characteristics of the device with 40 nm-thick Ge2Sb2Te5 film show that the Ge2Sb2Te5 film with nanometer order thickness is still applicable for memory medium of nonvolatile phase change memory.

Evolution of Surface Oxide Film of Typical Aluminum Alloy During Medium-Temperature Brazing Process

The evolution of the surface oxide film along the depth direction of typical aluminum alloy under mediumtemperature brazing was investigated by means of X-ray photoelectron spectroscopy(XPS). For the alloy with Mg content below 2.0wt%, whether under cold rolling condition or during medium-temperature brazing process, the enrichment of Mg element on the surface was not detected and the oxide film was pure Al2O3. However, the oxide film grew obviously during medium-temperature brazing process, and the thickness was about 80 nm. For the alloy with Mg content above 2.0wt%, under cold rolling condition, the original surface oxide film was pure Al2O3. However, the Mg element was significantly enriched on the outermost surface during medium-temperature brazing process, and MgO-based oxide film mixed with small amount of MgAl2O4 was formed with a thickness of about 130 nm. The alloying elements of Mn and Si were not enriched on the surface neither under cold rolling condition nor during mediumtemperature brazing process for all the selected aluminum alloy, and the surface oxide film was similar to that of pure aluminum, which was almost entire Al2O3.

Hydromagnetic thin film flow of Casson fluid in non-Darcy porous medium with Joule dissipation and Navier＇s partial slip

In this paper, the effects of viscous and Ohmic heating and heat genera- tion/absorption on magnetohydrodynamic flow of an electrically conducting Casson thin film fluid over an unsteady horizontal stretching sheet in a non-Darcy porous medium are investigated. The fluid is assumed to slip along the boundary of the sheet. Similar- ity transformation is used to translate the governing partial differential equations into ordinary differential equations. A shooting technique in conjunction with the 4th order Runge-Kutta method is used to solve the transformed equations. Computations are car- ried out for velocity and temperature of the fluid thin film along with local skin friction coefficient and local Nusselt number for a range of values of pertinent flow parameters. It is observed that the Casson parameter has the ability to enhance free surface velocity and film thickness, whereas the Forchheimer parameter, which, is responsible for the inertial drag has an adverse effect on the fluid velocity inside the film. The velocity slip along the boundary tends to decrease the fluid velocity. This investigation has various applications in engineering and in practical problems such as very large scale integration （VLSI） of electronic chips and film coating.

Influence of Negative Bias Voltage on the Mechanical and Tribological Properties of MoS_2/Zr Composite Films

MoS2/Zr composite films were deposited on the cemented carbide YT14 （WC＋14%TiC＋6%Co） by medium-frequency magnetron sputtered and coupled with multi-arc ion plated techniques.The influence of negative bias voltage on the composite film properties,including adhesion strength,micro-hardness,thickness and tribological properties were investigated.The results showed that proper negative bias voltage could significantly improve the mechanical and tribological properties of composite films.The effects of negative bias voltage on film properties were also put forward.The optimal negative bias voltage was -200 V under this experiment conditions.The obtained composite films were dense,the adhesion strength was about 60 N,the thickness was about 2.4 μm,and the micro-hardness was about 9.0 GPa.The friction coefficient and wear rate was 0.12 and 2.1×10-7 cm3/N·m respectively after 60 m sliding operation against hardened steel under a load of 20 N and a sliding speed of 200 rev·min-1.

Thin Film of Mesoporous MCM-41 Grown on Indium-Tin-Oxide Glass Substrate

From a basic solution containing celyltrimethylammonium cations as the template, thin film of mesoporous MCM-41 has been grown on the surface of a pre-treated indium-tin-oxide conducting glass substrate. The channel axis of the film is oriented parallel with the surface plane of the substrate, and the film is stable after careful removal of template in vacuum.

Influence of mobile education on joint function and quality of life in patients after total hip arthroplasty

Objective：To explore the influence of applying educational animated film as continuous post-discharge rehabilitation guidance for patients after total hip arthroplasty（THA）.Methods：Sixty patients discharged after THA were randomly divided into two groups.Traditional methods,such as distributing manuals of rehabilitation guidance on THA and phone call follow-ups,were adopted in the control group,whereas educational animated film was used as continuous rehabilitation guidance after discharge in the experimental group.Differences in recovery of hip joint function,accuracy of functional exercise,mastery of rehabilitation knowledge and quality of life between the two groups were compared.Results：The experimental group had superior performance on all indicators compared to the control group（P〈0.05）.Conclusions：The use of educational animated film as continuous post-discharge rehabilitation guidance in patients after THA achieved better effects than traditional education methods.

BIODEGRADATION OF REGENERATED CELLULOSE FILMS BY FUNGI

The biodegradability of Aspergillus niger (A. niger), Mucor (M-305) and Trichoderma (T-311) strains on regenerated cellulose films in media was investigated. The results showed that T-311 strain isolated from soil adhered on the cellulose film fragments has stronger degradation effect on the cellulose film than A. niger strain. The weights, molecular weights and tensile strengths of the cellulose films in both shake culture and solid media decreased with incubation time, accompanied by producing CO2 and saccharides. HPLC, IR and released CO2 analysis indicated that the biodegradation products of the regenerated cellulose films mainly contain oligosaccharides, cellobiose, glucose, arabinose, erythrose, glycerose, glycerol, ethanal, formaldehyde and organic acid, the end products were CO2 and water. After a month, the films were completely decomposed by fungi in the media at 30 degrees C.

Fabrication and photoluminescence characteristics of nonuniform Yb-Er codoped films

The nonuniform Yb-Er Codoped Al2O3 films were prepared on SiO2/Si substrates using a medium frequency magnetron sputtering system. Two asymmetry targets in the system were introduced to realize the nonuniform dopant. Some curves of Photoluminescence （PL） peak intensity were obtained by adjusting the deposition parameters, such as, the pillar number of erbium and ytterbium in the mixed target and the distance between a sample table and targets. Typically, the curve of PL peak intensity against the offset distance was approximately linear. The ratio of the PL intensity at the two ends of the same sample was 12.6 and the slope was 71.83/mm when the pillar numbers of the erbium and ytterbium in the mixed target are 5 and 60, respectively, and the distance between targets and the sample table is 2.9 cm.

草状氧化铝微结构渐变折射率的计算及实验研究

针对草状氧化铝的微纳结构对折射率的影响,采用台体计算法与柱体计算法计算氧化铝的体积,使用Clausius-Mossotti方程式与MATLAB软件拟合计算微纳结构的折射率变化,使用TFC软件进行拟合,最终计算出草状氧化铝的渐变折射率,研究其微结构的形貌特征及渐变折射率的分布,计算其可见光减反射性能。采用电子束沉积氧化铝薄膜,通过对沉积温度、水煮工艺等参数的优化,获得了不同结构的草状氧化铝纳米薄膜,制备了可见光波段420~680 nm的减反射薄膜。

基于产学研协同育人的薄膜物理与技术课程教学模式探索——以长春理工大学为例

在产学研协同育人培养技能型和应用型全面人才的背景下,以长春理工大学薄膜物理与技术课程为例,通过课程内容优化、线上教学资源建设、课内实验及竞赛联合项目设置,教学设计改革、课程测试与评价建设及课程思政建设几方面对产学研协同育人的课程教学模式进行探索,最终提高学生实践创新能力、科研能力及自身就业竞争力。同时,其也是培养合格员工且缩短人才培养周期的最佳途径,另外,也为高校产学研协同育人的课堂教学改革及实践提供一定的参考。

高职课程思政之微电影教学方法探索与实践研究——以“通信概论”课程思政为例

微电影教学方法遵循理论与实践相结合、教师引领与学生践行相统一、思政语言指导与学生网络语言拍摄相融合的原则,是一种适应高职学生学习行为的新模式,为课程思政教学方法创新提供了路径。该文以“通信概论”课程思政教学实践为例,探索和构建了以“建好一个团队、抓好“两结合”、做好“三环节”、打造‘四有’沟通方法、完善五类促进措施”为内容的“12345”微电影教学模式,使高职专业课程思政与微电影相容相吸。提出了优化“两感双能”教学评价量化指标,实现了课程思政考核创新,并结合课程思政教学实践给出了深化微电影教学模式改革、提升育人实效的对策。

体育影视对高校体育教学的美育功能研究

《“十四五”体育发展规划》对体育文化创作给予了大力支持,体育影视作品作为传播体育文化的重要载体,对体育精神的弘扬、体育美育功能的发挥具有积极意义。体育影视的美育功能在高校体育教学实践中长期缺乏教育者与关注度,当今影视作品传播途径随着信息化的普及变得多样,体育影视也逐步在教学中得到应用。研究体育影视对高校体育教学的美育功能,不仅是对当前体育美育教育实施途径的探寻与反思,还是对体育美育体系的建构和美育理论的提升。该文对体育影视作品及高校美育概况进行分析,探索高校体育影视美育教学措施及目标,旨在让学生更好地支持并参与到体育事业的发展中,弘扬新时代中华体育文化与精神。

科教融汇及思政育人新路径——食品包装技术课程创新实验设计

在前期研究基础上,为食品包装技术实验课开设了明胶-淀粉复合膜制备和性能评估实验,引入绿色包装材料最新科研成果,紧贴社会热点环境保护,结合食品专业多学科知识,涵盖产品研发全过程,全方位渗透思想政治教育。实验包括学生自行筛选复合膜配方、进行质量评估和数据分析、撰写论文模式实验报告。3年的教学实践表明,该课程设计创新性强、综合性高、学生认可度高且教学成果丰富,能极大激发学生实验兴趣和培养正确思想价值。