文章以工程教育专业认证为背景,以大连民族大学为例,针对工程教育认证中对于如何解决复杂工程问题的要求,研判高校毕业设计中存在的问题,同时阐述了工科专业毕业设计在选题、指导和答辩等具体环节的主要改革措施以及具体实施过程,说明了毕业设计评价机制以及持续改进的有效做法,从而提升学生解决复杂工程问题的能力.

信息技术产业已经成为推动经济社会发展的重要引擎,但电子信息类人才培养与产业行业的发展需求之间的结构性矛盾日益凸显,人才培养模式如何适应新时代深度变革情境下的新要求是专业内涵建设和质量提升必须要解决的实际课题.文章提出将产出导向理念融入专业培养目标、毕业要求、课程体系、产教融合、持续改进等关键环节,通过强化顶层设计、完善机制、实施专业综合改革等举措,着力提升适应行业需求趋势的应用型人才培养质量,为同类院校电子信息类专业特色发展提供借鉴与启示.

目前大多数课程学业评价采取以期末终结性考试为主,辅以适量的平时测验方式,很少关注学生学习过程中学习能力的发展和质量,这样势必造成学业评价等同于考核,背离了学业评价促进教与学质量的持续改进初衷.文章以真实反映学生能力发展为评价目的,在研究基于OBE的学生学习成效评价的内涵要义、体系构建原则和实施要点等方面内容的基础上,结合作者在课程教学中开展的"成果导向+行动学习"评价进行了相关实证研究,为进一步完善学业考评制度,推进教与学的质量持续改进提供借鉴.

基于课程目标达成评价是建立面向产出的内部评价机制的核心,是实施毕业要求达成评价的基础和前提,是工程教育专业认证质量持续改进的底线要求,是落实工程教育理念的具体体现.在讨论面向产出的专业质量保障机制原则的基础上,以"培养目标—毕业要求—课程目标—教学内容—教学设计—考核内容—考核方式—考核评价—评价反馈—持续改进"为主线进行达成评价机制的设计,实现"能力培养、课程教学、考核评价"的持续闭环改进.

Crevice corrosion behavior of commercial pure titanium (CP Ti), Ti-6Al-4V alloy and Ti-Ni Shape Memory Alloy (SMA) were investigated through an electrochemical methods in Ringer's artificial body fluids. The results indicate that the crevice corrosion occurs for all alloys in Ringer's artificial body fluids at potential of 400 mV. The crevice corrosion for all alloys increases with the increase of corrosion solution temperature. The corrosion potential of Ti-6Al-4V alloy is more positive than that of CP Ti and Ti-Ni SMA, manifesting that the anodic polarization characterization of Ti-6Al-4V is better than those of both CP Ti and Ti-Ni SMA. So its crevice corrosion resistance is enhanced. The dynamic equations of crevice corrosion for CP Ti, Ti-6Al-4V and Ti-Ni SMA are as follows: iT, CPTi=0.028 e−2×10−4t, iT, Ti-6Al-4V =0.0149 e−3×10−4t, iT, Ti-Ni SMA =0.4712 e−7×10−4t, which indicate that the process of the crevice corrosion is controlled by the dissolution of chloride salt film on its surface.

In the ethnic unity,there are still some problems,such as the insufficient effect of classroom teaching as the main channel,the weak effectiveness and influence of ethnic unity education and so on. To deal with these problems,based on Dalian Nationalities University's education practice,we put forward some suggestions such as improving the curriculum system, broadening the channels of education,enriching the education carrier and other measures to strengthen ethnic unity education.

This paper analyzes the current challenges and problems of stability of ethnic universities and colleges. Based on the construction principles of stability mechanism of ethnic universities and colleges,this paper constructs stability mechanism of ethnic universities and colleges from such aspects as system management,emergency preparedness and response,campus culture,service guarantee,education content,etc. The mechanism can promote the stable and harmonious development of ethnic universities and colleges.

Taking Dalian Nationalities University as an example,the paper analyzes the distinctive features of nationalities university students,and puts forward the statement that the new ideas and new methods for party building among nationalities university students should be explored in the new period based on the focus of cultivating politically firm minority young Marxists,and the new situation of student party building should be created by "three strengthening".Thus,the pertinence and effectiveness of university students' ideological and political education may be improved.

随着社会的发展和进步,整个社会的道德价值观念都受到一定的影响.大学生的道德人格对提升整个民族的民族精神有着重要的意义,高校应积极探索有效途径塑造大学生的道德人格.

贫困生资助权的实现主要存在知情权与隐私权、受助权与消费权的冲突。贫困生资助权利冲突的根源在于不同权利义务主体对权利义务关系认识的偏差所致,因而,合理界定权利及其行使边界、设置合理的义务内容、构建利益平衡机制等应是贫困生资助权利冲突解决的路径选择。

科学发展观是以人为本、全面、协调、可持续的发展观,全面认识和正确把握科学发展观对新形势下高校思想政治教育工作的发展具有重大的理论和现实意义。本文以科学发展观为指导,提出实现学生工作与教学工作一体化的工作基本思路。

The effects of Cl− concentration, temperature, pH, flow velocity, soluble oxygen content of seawater and anodic current on the potential of high purity zinc and Zn-Al-Cd reference electrodes were investigated. The results show that the investigated metal materials are liable to establish stable potential and act as reference electrodes in seawater, diluted seawater and urban tap water. Cl− concentration, temperature, seawater flow velocity and anodic current have an obvious effect on zinc potentials. However, seawater pH has no obvious effect on zinc potentials.

In order to investigate the effect of low temperature soil on magnesium anode, the electrochemical performance of four magnesium alloy anodes in simulated Qinghai-Tibetan plateau soil at low temperatureof -4 ℃ and 4 ℃ was studied by polarization curves, electrochemical impedance and current efficiency tests. The results showed that addition of Mn, Al and Zn elements could decrease the natural dissolution tendency of magnesium alloy, and increase the current efficiency through the formation of an intermetallic compound with weak cathodic effect between Mn, Al, Zn and impurity elements. Magnesium alloy anodes presented active dissolution state in low temperature Qinghai-Tibetan plateau soil. The sequence of dissolution activation and reaction activation from high to low was MGAZ63B, MGAZ31B, MGMIC and pure magnesium. Among these four anodes, current efficiency of MGAZ63B was the highest, and the values were 54.39%and 61.77% at -4 ℃ and 4 ℃ respectively. For diffusion rate of oxygen at 4 ℃ soil was higher than that of at -4 ℃, the dissolution activation and current efficiency of magnesium alloy anodes in Qinghai-Tibetan plateau soil at 4 ℃ were superior to that of at -4 ℃.

学风建设是高等学校改革和发展中一个重要问题,是保证和提高教学质量的重要条件,高校应该将学风建设作为一项系统工程,积极探索学风建设的有效途径和方法,这也是高等教育工作者必须认真思考的问题。

For determining the potential distribution of the protected structure in a moreaccurate and efficient way,engineers sought a more efficient method than the traditional methodtosolve engineering problem,hence the numerical methods has been used to solve cathodic protection(CP) problems along with the development of computer technology and has greatly advanced the CP technology .By making a general review on the research on the problem,this article described the mumerical methods and the application to CP and then made a prospect for its future.

Cl-critical concentration in active dissolution of Al-Zn-In-Si-Mg was determined by measuring the galvanic current, pit-corrosion potentials and polarization impedances. The results showed that Cl-critical concentration in dissolving Al-Zn-In-Si-Mg actively was between 0.05-0.15 molˇL-1.

Effects of Ga on the electrochemical properties of Al-Zn-In sacrificial anodes in 3% NaCl solution were investigated by means of electrochemical techniques, atomic spectrum and electron-probe experiments. The distribution and the role of alloying elements such as Ga and In in the active-dissolving process of Al-Zn-In sacrificial anodes were analyzed. The results show that Al-4%Zn-0.022%In-0.015%Ga is a kind of ideal sacrificial anode with its operating potential of (-1 039) mV (SCE) and current efficiency of 96.3%. With the increasing of Ga amount while the other alloying elements are unchanged, potentials of aluminium-based alloys shift negatively but their current efficiency drops down and pitting corrosion increases evidently. Gallium distributes homogeneously in the alloy while indium gathers locally. Because of the activing effect of In~(3+), the surface passivated membrane is destroyed, potentials shift negatively, and with In~(3+) and Zn~(2+) together, Ga~(3+) promotes the aluminium alloy to dissolve actively.

This program is formulated on the basis of the international advanced experience and the lessons derived from the experience since the founding of our country.The whole program is scientific,practical and creative.It is in an experimental stage,so many details are to be perfected and revised through practice.