医疗器械工程专业实践性教学改革与思考

实践性教学是本科教学的重要组成部分,在新的教育形势下如何提高实践性教学的质量是我们所面对的严峻挑战,教学改革中课堂教学广泛使用现代化教学手段,对加强教学效果和提高教学质量,有很好的促进作用。本文探讨和研究了医疗器械工程专业实践性教学情况,指出了实践性教学中存在的问题,对实践性教学中环节安排、管理制度、实施方式、基地建设等方面进行分析与探讨,提出了对该专业实行实践性教学方法改革的一些设想,对培养具有创新能力的高级应用型工程技术人才有一定的参考价值。     

浅析“互联网+教育”模式给予高职院校实践性教学的启示

实践性教学是高职院校教学过程中的一个重要环节,也是高职院校培养学生职业能力的重要手段。多数院校在实践性教学环节设计、执行过程中有力不从心的感觉。互联网的广泛普及拓开了高职院校实践性教学的新思路。文章分析了高职院校实践性教学开展中存在的问题,阐述了"互联网+教育"模式和"互联网+实习实训"模式的合理性,提出了利用互联网手段完成实践性教学的可行性途径。     

职业院校实践性教学体系的探讨

职业院校实践性教学体系的建设主要包括:建立规范的实践性教学体系;制定可行性的实践性教学计划;编写实用性、指导性强的实习指导教材;建立规范的实爿课教学模式和管理模式:加强师资队伍建设,加强实习基地建设.     

航空管制专业的实践性教学研究

传统的灌输式教学,学员多处于被动接受的状态。这种方法对学员知识和能力的培养是有很大的局限性。实践性教学是实现人才培养目标的一种重要教学方法,是提高学员任职能力的重要途径。本文结合航空管制专业特点,以学员任职能力的培养为主线,以专业任务为导向构建课程体系,创新航空管制专业人才培养模式,加强实践基地建设、教材建设,符合专业性、实践性和任职性的总体要求;同时依据已有的实践性教学理论和实践,对如何进行实践性教学,促进学员发展进行了实践探索,实现运用实践性教学方法改造传统课堂教学并促进学员自身发展的目的。     

浅谈如何提高中职机械基础教学

《机械基础》是理论性和实践性较强的综合性专业基础课,课程涉及面广,基本概念和工作原理多,实践性强。传统的教学模式已经很难适应现在的教学需要,所以教师在教学中就要不断努力提高自己的索质、拓宽教学方法,在教学实践中不断探索、不断追求、不断总结,达到更佳的教学质量和教学效果。     

陶瓷设计与工艺专业实践性教学模式优化研究

随着物质生活水平的日益提升,人们的审美层次逐渐提高,越来越多的人开始认可和崇尚“工匠精神”。在此背景下,陶瓷设计与工艺专业得到了长足的发展,作为一门对实践性要求较强的学科,实践性教学是陶瓷设计与工艺专业的重中之重。以陶瓷设计与工艺专业为核心导向,介绍了实践性教学的价值逻辑,分析了实践性教学所面临的现实困境,并在此基础上提出了优化陶瓷设计与工艺专业实践性教学模式的路径,以期为陶瓷设计与工艺专业教学整体水平的提升提供理论依据与参考。     

仑数控专业实践性教学的有效方法

本文以数控专业实践性教学为研究对象，首先针对现阶段数控专业实践性教学过程中存在的典型问题进行了简要分析，在此基础之上，分别从课程设计、课时安排、教材编写以及教学方法这四个方面人手，针对数控专业实践性教学开展过程中所涉及到的有效性方法予以了详细阐述与说明，旨在于为数控专业实践性教学质量以及教学水平的合理提升，提供一定的参考与帮助。     

高职学生顶岗实习中实践性教学体系的研究——以义乌工商职业技术学院产品造型专业首饰方向为例

根据教育部关于工学结合的教改要求和义乌市场对首饰设计人才的迫切需求,对首饰设计顶岗实习实践性教学环节实施过程中存在的问题以及对策进行深入探讨,以便控制顶岗实习的质量。研究中搭建了校内外合作的不同层次、不同功能顶岗实习岗位的立体构架,并对顶岗实习实践性教学的过程进行有效的管理、监控设计,形成实践性教学的科学体系,为学生的创业、就业提供平台。     

市场营销专业实践性教学初探

市场营销专业是一门实践性较强的学科,在教学过程中合理开展实践、实训活动,对高职院校的实训软硬条件提出了更高的要求。本文就如何提高市场营销专业实践性教学的需求提出了建议和方法。     

高校室内设计实践性教学研究

通过对我国高校室内设计教育现状的分析,探讨开展实践性教学的意义,并提出开展实践性教学的措施。     

Effect of Permeable Crystalline Material on Steel Reinforcement Corrosion of Concrete

Permeable crystalline materialcan permeate into pores and cracks of concrete and catalyze the reaction between Ca(OH) 2and unhydrated cement to generate a great quantity needle non-soluble crystals, which can stop up the pores and cracks of concrete, and increase the impermeability of concrete. This paper reported the results of a study conducted to evaluate steel reinforcement corrosion of concrete specimens uncoated and coated with permeable crystalline material as well as mixed with the permeable crystalline material. The properties evaluated for corrosion test were water impermeability, water absorption, compressive strength and potential. The results of water impermeability, water absorption, compressive strength clearly showed that the permeable crystalline material could prohibit water, any soluble salts and moisture from penetrating the concrete to cause corrosion, leaking, and other problems, and it did increase the compressive strength, which was favorable for protection of corrosion of reinforcing steel. Moreover, it was concluded from the potential-time curve that the steel reinforcement of uncoated specimen was in the state of activation whereas that of other specimens coated and mixed with the permeable crystalline material was in the state of inactivation. Above all, it was indicated that the permeable crystalline materialis very effective to protect the steel reinforcement of concrete from corrosion.     

The Research and Application About "Dry Peeling Off" Technology for Airplane Surface Paint Layer

In this paper, the principle of spurting take off lacquer were introduced; and with orthogonal method the unsaturate polyester was prepared ;it was easy to peel airplane paint layer off with this material and equipment.     

Quality Study of Honeycomb Core Shaping Without Wax Stabilization

Sandwich panels utilizing honeycomb cores result in lightweight, high-strength units that are very rigid. Indeed, they give honeycomb panels the best strength-to-weight ratio of any construction type available. Conventionally, the wax is poured into the cell of the core to strengthen the structure and prevent the core from being crushed during milling. Much time and labor is required to wax, mill, and clean the cores. In this study, the process of pouring wax into the core was skipped. In other words, the cutter directly milled the core. Experiments showed that the compressive strength of the core produced without wax stabilization was only 3% lower than that of cores produced using the traditional method. In addition, the drum peel strengths of cores produced without wax stabilization were 38.4% higher than cores produced using the traditional method, in which residual wax seriously polluted the adhesive. It was also found that eliminating the wax process can reduce costs.     

In-process thermal treatment of polylactic acid in fused deposition modelling

Polylactic acid (PLA) is one of the most widely used open source fused filament fabrication materials due to its ease of extrusion, biodegradability, and mechanical strength. The mechanical strength of PLA largely depends on the proper growth of its semi-crystalline structure, which can be severely impaired by a low rate of crystallization, particularly in open source printers. This can be further aggravated by the non-uniform thermal distribution of heat that causes improper curing among the extruded beads of the printing material. As a result, PLA printed on open source printers does not achieve the best mechanical properties. This research, for the first time, proposes an additive-free solution implemented through a detailed set of experimentation to improve the curing rate through in-process temperature variations to cure the joints among the beads. Scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR) spectroscopy is used to confirm the improvements in the bead joints. This work is conducted in two phases of experiments. In the first phase, a full factorial ANOVA is used to investigate various process parameters and the important variables are used in the second phase to print test specimens in four different sets.     

Investigation of the Corrosion Behaviors of HVOF-Sprayed Carbide Cernet Coatings in Molten Al-Zn-Si Alloy Bath

In continuous hot-dip galvanization process the corrosion and chemical stability of the sink roll in the galvanizing bath are important problem which effects on the quality and productivity. In order to protect the sink roll the carbide cermet and/or ceramic coatings were deposited on the surface of the sink roll. The WC-, Cr3 C2-cermet coatings were deposited by high velocity oxygen fuel (HVOF) spray, respectively. The coating samples were immersed in molten Zn-alloy containing 50 wt % aluminum at 833 K for 24 hr and 144 hr, respectively. The inter-diffusion and inter-reaction of Zn, Al and elements in coating and corrosion behaviors of these coatings were investigated by XRD, SEM and EPMA etc. The corrosion mechanisms of the carbide cermet coatings and ceramic coatings in molten High Al-Zn-alloy were approached.     

Fundamental study of adhesion of ice to cooling solid surface (Discussion on influence of copper oxide layer on ice adhesion force)

In many situations, ice often adheres to a cooling solid surface, frequently causing serious accidents. It is critical to clarify the mechanism of ice adhesion to the cooling surface in order to prevent ice adhesion. In a past study, the shearing stresses of two kinds of test plates with a copper surface having the higher thermal conductivity were measured. The shearing stress corresponds to ice adhesion force. Both shearing stresses were significantly different; however, the cause remains unclear.Therefore, the present study focuses on an oxide layer as the main factor causing the difference of both shearing stresses; the influence of the oxide layer formed on shearing stress was discussed. And in the removal and reformation processes of the oxide layer, the time variation of the shearing stress was clarified. Moreover, the relationship between the state of the copper surface and the shearing stress was also clarified by surface analysis.     

重塑标准推行格局 推动LED照明的普及（英文）

正When you are enjoying the green,energy-saving and healthy lighting of IKEA LED luminaire,you may not realize that most of IKEA’s LED bulbs are produced by the LED luminaire smart manufacturing system of Hangzhou Zhongwei Photoelectricity CO.,LTD(ZVISION).No longer enclosed in the laboratory,the product standards are brought into the factory workshop and even to the entire production process.Thus,the standards are promoted and applied in a favorable way by enterprises,benefitting consumers with high quality products.     

Chinese Experts Contribute to ISO＇s New Toy Standards

正The international standard,ISO 8124-6,Safety of toys–Part 6:Certain phthalate esters in toys and children’s products,was officially issued by ISO worldwide on August 15.It was the first time for Chinese experts to lead the ISO standard development in toys industry.The standard was drafted by a group of Chinese experts from SAC/TC for toys and relevant Chinese departments and finally completed by a dedicated international group of experts.ISO 8124-6 makes a substantive breakthrough in the aspects of the scope of toys,limitation of plasticizer types,control of test cost,accuracy of test,operation convenience,etc.,offering the operational guidance for toy manufactures and testing laboratories.     

中国质量(北京)大会(英文)

正Themed on"quality,innovation,development",the first China Quality Conference(Beijing)was held in the Great Hall of the People on September 15.Chinese Premier Li Keqiang delivered an important speech at the conference.State Councilor Yang Jing and Wang Yong attended the conference with over 600 domestic and international representatives from foreign,regional and international quality organizations     

National Working Meeting on Land and Resources Standardization

正The National Working Meeting on Land and Resources Standardization was held in Beijing on July 15,2014.Wang Min,the Deputy-Minister of the Ministry of Land and Resources,and Yin Minghan,the Chief-Engineer of SAC addressed the meeting.Representatives from relevant competent departments and technical committees were present.The meeting aims to summarize work,discuss existing problems and make clear working thoughts,promoting standardization work of land and resources to a new level.Wang Min pointed out that the standardization work of land and resources should be centered on the basic principles of"protecting land and resources dutifully,intensively and economically utilizing land and resources,and making all-out efforts to safeguard the public’s rights and interests",highlighted the