Can openness to ICT and scientific research predict the ICT skills and ICT use of bachelor's students?

In this article, we focus on the question of why some bachelor's students have more proficiency in ICT skills and use computers and the Internet more frequently than other students do. To answer this question, we rely on the core variables of the TAM (Technology Acceptance Model), on the orientation of students toward scientific research, and on contextual factors. TAM has been applied successfully in research before, but in this article, the model is expanded with variables regarding the orientation of students toward scientific research, and is geared towards the relationship to basic ICT skills and the sustained use of these skills. In order to attain a more reliable instrument to measure proficiency in ICT skills and the frequency of ICT use, several new instruments are constructed. The results show that this model, a combination of four basic TAM variables, together with the identity commitment of students focused on the appreciation of scientific research and some context variables, can explain a substantial proportion of the variance in different ICT skills, but considerably less of the frequency of ICT use.     

湿度对烟包条盒纸动摩擦因数和油墨耐磨度的影响

目的研究湿度对烟包条盒纸动摩擦因数和油墨耐磨度的影响。方法实验测试4种烟包条盒纸试样动摩擦因数和油墨耐磨度。结果随着湿度的增加,4种条盒纸的动摩擦因数均增大,相对湿度为70%时的动摩擦因数比相对湿度为50%的动摩擦因数高34.6%。条盒纸试样的油墨耐磨度受摩擦面的影响十分明显,湿度对摩擦纸上条盒纸的油墨耐磨度影响也十分明显。转移纸油墨耐磨度数据稳定,油墨耐磨性好,对摩擦材料和湿度不敏感。结论研究结果对条盒纸的贮存和上机适应性具有指导价值。     

Synthesis,spectroscopic and structural studies on YOF,LaOF and GdOF nanocrystals doped with Eu3+, synthesized via stearic acid method

Nanocrystalline Eu³⁺ doped REOF oxofluorides (where RE = Y, La, Gd) were synthesized using stearic acid as the reaction medium. Optimal conditions for the synthesis of pure and single-phased oxyfluorides were found. The obtained products were analysed using thermogravimetric analysis, X-ray analysis, transmission electron microscopy and the Rietveld method. The influence of calcination temperature on the physicochemical properties was studied. Spectroscopic properties of the tetragonal and rhombohedral oxyfluoride nanocrystals were investigated using excitation and emission spectra and luminescence lifetime measurements. Effectiveness of the Eu³⁺ dopant red emission intensity and energy transfer processes were examined in relation to the structure and the presence of the RE ion in oxyfluorides studied. The highest luminescence efficiency was observed for the GdOF:Eu³⁺ nanomaterial. Judd–Ofelt intensity parameters were calculated and analysed.     

桥头堡建设助推云南高等职业教育发展

桥头堡建设是国家的重要战略,是提升云南整体实力的重大举措,是国家交给云南的重大任务和重要使命。桥头堡建设对培养技能型高职人才提出了新的更高要求,云南高等职业教育面临着历史机遇与重大挑战,结合云南桥头堡建设实际,探讨了发展云南高等职业教育的思路和举措:更新观念,树立国际化教育理念;加强改革与调整,构建云南特色的高职教育体系;对接企业,推进校企深度合作,实现云南高等职业教育的大发展。     

地方高等职业教育专业设置与区域经济的适应性分析——以云南省10所高职院校为例

地方高等职业教育与区域经济发展是否适应,和其专业建设密不可分。选取了云南省10所具有代表性的高职院校作为研究对象,深入考察它们的专业设置情况,样本选择兼顾了层次和公私立之差异,从专业设置类别和布点数等来分析其与云南省三大产业的匹配情况。并提出了云南高职教育专业设置与调整建议,及需要遵循的原则。     

Air heat exchangers with long heat pipes: Experiments and predictions

This paper presents measurements and predictions of a heat pipe-equipped heat exchanger with two filling ratios of R134a, 19% and 59%. The length of the heat pipe, or rather thermosyphon, is long (1.5 m) as compared to its diameter (16 mm). The airflow rate varied from 0.4 to 2.0 kg/s. The temperatures at the evaporator side of the heat pipe varied from 40 to 70 °C and at the condenser part from 20 to 50 °C. The measured performance of the heat pipe has been compared with predictions of two pool boiling models and two filmwise condensation models. A good agreement is found. This study demonstrates that a heat pipe equipped heat exchanger is a good alternative for air–air exchangers in process conditions when air–water cooling is impossible, typically in warmer countries.     

地方高校实施大学文化建设的探讨

阐述了大学文化建设的内涵、意义；提出地方高校实施大学文化建设应从培育先进的大学精神、构建现代的文化模式、树立求实的文化理念、建立先进的制度文化等几方面入手。     

基于 CDIO 项目式教学的教师能力培养

CDIO模式是工程教育改革的重要成果,并在国内外多所高校得以应用。CDIO项目式教学是该模式的重要内容,要求教师设计多级项目,实现课程一体化,培养学生构思、设计、实施、运行等工程实践能力以及团队交流合作能力。这就要求授课教师必须精通专业知识,熟悉工程现场运行实践和企业面临实际工程问题,转变自身角色,即“CDIO教师=大学教师＋准工程师”。提高教师能力不仅要控制引入及过程培养环节,还可以以CDIO项目为平台,通过教师对项目的选题、构思、设计、实施、运行等过程,加强教师的项目开发与设计能力。     

鲜白酒糟提取液对Q235钢硫酸酸洗的缓蚀性能

为了综合利用白酒糟和开发新型绿色酸洗缓蚀剂,制取了鲜白酒糟提取液,采用失重法和电化学法研究了其作为硫酸酸洗缓蚀剂的缓蚀性能。结果表明:15 g酒糟在300 mL 5%硫酸溶液中30℃静置浸泡6 h,得到的提取液在5%硫酸介质中对Q235钢的缓蚀率最高;酒糟提取液在Q235钢表面的吸附符合El-Awady动力学模型和Flory-Huggins吸附等温方程,属于几何覆盖效应的单分子层吸附,提取液为混合型缓蚀剂;放置时间延长时,提取液的缓蚀率降低。