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1.
李琦 《洛阳工业高等专科学校学报》2004,14(3):43-44,48
从对现代汽车新技术的介绍入手，详细分析了当前汽车修理行业所面临的几大挑战以及应对的措施，探讨了汽修专业教育存在的问题．指出要根据最新的汽车技术发展，安排教学工作，才能够培养出在几方面都能满足实际需要的专业人才。 相似文献
2.
电沉积法修复混凝土裂缝的初步进展 总被引：1，自引：0，他引：1
电沉积法是通过电解作用把某些物质沉积在电极的表面，利用这一方法可以愈合混凝土的裂缝，它具有独特的优势，特别适用于传统的修复技术难以奏效的海工混凝土结构。本文对国内外利用电沉积法修复混凝土裂缝的研究进行了评述，并介绍了近年来在国家自然科学基金资助下我们在这一领域取得的最新研究成果。 相似文献
3.
The aim of this paper is to present a reliability modeling and analysis of a two-unit system of a continuous casting (CC) plant. Real maintenance data of a steel production plant have been used for the purpose. Three types of failures were noted: repairable, replaceable and reconditioning/reinstallation. The two-unit system is operating in parallel, on full-reduced installed capacity. Upon the unit failure, an inspection is carried out to decide the type of maintenance task to be performed. Optimized reliability indices of the plant such as mean time to system failure, availability, expected busy periods of the repairman for various maintenance tasks, expected number of visits by the repairman, expected number of repairs, replacements and reconditioning/reinstallation are obtained. Semi-Markov processes and regenerative point techniques are used for the analysis. Profit incurred to the CC plant is also evaluated and related graphs are plotted to demonstrate the results. 相似文献
4.
本文在分析南车长江车辆有限公司货修系统出台的背景基础上,对货修的纵向价值链、横向价值链、产品竞争战略等进行探讨,最后结合公司实际搭建了货修的成本控制构架。 相似文献
5.
梅丹 《中国科教创新导刊》2014,(8):60+62-60,62
角色扮演与情景教学在现代教育中有着重要地位和作用.模拟的环境有真实感贴近于生活,又有别于真实环境让学生有安全感,更容易营造宽松和谐的教学气氛,使学生的潜能得到了充分的发挥,更好适应从业要求.本文主要以《笔记本电脑维修》课程为倒,对角色扮演和情景教学法在本门课实践进行分析、讨论、并对存在的问题进行反思. 相似文献
6.
目的 评价腹腔镜修补十二指肠球部溃疡穿孔的效果。方法 对12例十二指肠球部溃疡穿孔的病人行电视腹腔镜缝合修补，观察其疗效及并发症。结果12例均在腹腔镜下成功修补，术后恢复快，平均住院6天，无手术并发症。结论 电视腹腔镜十二指肠球部溃疡穿孔修补术是安全有效的手术方法。 相似文献
7.
Ryan Shepard 《Communication Studies》2013,64(5):460-475
In response to the Abu Ghraib torture scandal, President Bush delivered an apology that was widely criticized by domestic and international audiences. Nevertheless, the apology succeeded in allowing the President to stop the momentum of negative public opinion following news of the crimes, and to avoid accountability for his role in the crisis. In this essay, I argue that Bush's success stemmed partly from his use of a special subgenre of apologia, simulated atonement. After explaining the strategy in detail, I describe some of the conditions in which it will likely be effective and apply the theory to Bush's statements. 相似文献
8.
Carolyn Kitch 《Critical Studies in Media Communication》2013,30(2):115-131
Initially promising to replicate the story of the 2002 rescue at the Quecreek mine in Pennsylvania, news coverage of the January 2006 coal mine accident in Sago, WV, went terribly wrong when journalists incorrectly reported the miners’ “miracle” survival. Analysis of 761 newspaper, newsmagazine, and broadcast news reports illustrates how journalists corrected a mishandled story, and offers a glimpse into their broader role in constructing politically affirming national mythology. The final story of Sago was one of a rural community with class pride, distinct gender roles, and other “traditional” values presumed lost—a nostalgic parable of blue-collar patriotic sacrifice. 相似文献
9.
Merissa H. Ferrara 《Communication quarterly》2013,61(2):187-204
Relational satisfaction and stability following discovered incidents of relational betrayal were investigated. Predictions from Social Exchange Theory, specifically Rusbult's Investment Model, were tested along with the effects of communication strategies. Participants (N = 155) completed a questionnaire about a recalled betrayal. Inconsistent with the investment model, relational satisfaction was the best predictor of relational stability. Generally, the more committed and invested the offender, the more likely the reported use of communication repair strategies. The likelihood of apologies, accepting responsibility, and promising change also increased with the severity of the betrayal. Only promising change was related to post-betrayal relational satisfaction. 相似文献
10.
目的：：本研究利用循环载荷动物模型,比较休息和低强度运动对髌骨髌腱结合部( patella－patella tendon junction, PPTJ)损伤及对髌骨的影响。实验方法：12只成年雌性新西兰大白兔,随机筛选分组分为4周循环载荷组(LD－RST,n=6),8周循环载荷组(LD－LI,n=6),左后肢进行实验,右后肢为空白对照。实验过程中,前4周两组实验动物统一接受强度为7.17N／S共24小时的循环载荷。在实验的第4周后,LD－RST组停止实验,LD－LI组将强度改为4.2N／共24小时的循环载荷。8周后所有动物统一进行取材,将取材后组织进行Micro－CT进行并进行H&E染色,使用图像采集系统进行组织学分析。结果：H&E染色测量纤维软骨带厚度LD－LI组和LD－RST组没有显著差异,LD－LI组的胶原排列比LD－RST组更加紧密整齐。骨量和骨小梁结果显示实验组和对照组没有显著差异。结论：4周休息不能促进髌腱结合部损伤的恢复。4周低强度的循环载荷没有加重损伤和髌骨增生,并且对肌腱的重建修复具有促进作用。 相似文献