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福岛核事故已经过去一年多的时间,核电专业的学生在此期间的择校观念、学习心态和就业形势有没有发生变化?面对核电纷繁的变化态势,他们将何去何从?就此,记者对高校的一些核专业的学生进行了采访。择校时的担心和决心核专业在高考招生时分数要求相对较高,尤其是报考首都院校的外省考生。虽然福岛事故对我国核电发展造成一定的影响,但就目前采访的结果来看,开设核专业的高校招生并没有受到影响,依然是某 相似文献
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目前,随着我国高等教育体制不断的改革,高等院校艺术类教材的发行量也在不断的激增,高校艺术类的教材也逐渐成为了畅销书籍。书籍具有审美功能,是一个立体的、多侧面的动态整体。本文通过对高校教材书籍设计的现状分析,主要探讨了高校教材书籍设计的审美情趣。 相似文献
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重视男幼儿教师在学前教育领域的作用已是共识,但如何加强高校学前教育专业男生的专业认同是一大瓶颈。本文分析了影响男生专业认同的主要因素,在此基础上提出从男生心理,学校课程,招生政策等方面加强男生的专业认同感的策略。 相似文献
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高校招生录取工作结束后 ,做好新生数据的储存、统计和开发利用 ,是高校招生管理及学校管理中极其重要的前期工作 ,也是一项基础工作。而现行统一使用的由教育部和清华大学联合开发的招生软件 ,虽然能够为高校提供比较完整的新生信息和各类数据 ,基本上能满足高校管理对信息和数据的需求 ,但其提供的界面功能不能满足高校管理的实际需要 ,所以高校还需建立一套适用的、科学的新生管理系统。笔者结合自身对招生管理工作的认识 ,主要介绍新生管理系统应具备的基本性能、主要功能模块设计和主要流程等 ,供大家参考。一、系统应具备的主要性能1 … 相似文献
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高校招生“并轨”,是我国高等教育体制改革的重大举措,也是高校适应我国建立社会主义市场经济体制需要的必然趋势。 所谓招生“并轨”,就是建立以收费制度为标志的高校招生和毕业生就业制度的改 相似文献
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北京电子工程总体研究所(二部)2006年招聘工作推出新举措,面试首次采用专家评审、个人答辩应试的形式,百余名相关专业的高校应届毕业生参加了专业面试。这是该所充实核心专业队伍、落实人才强企战略的一条新路。 相似文献
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事故回放轻信GPS捷克货车司机被困整三天捷克的一名货车司机,一路随着GPS的语音指示来到窄巷子面。在直觉和专业的导航系统之间,这名货车司机选择了相信专业的导航系统,结果开进巷子以后,货车司机才发现这是一条无法转弯的窄巷。货车被卡在这条窄巷里进退不得,事故当天正逢节假日,为了省下昂贵的假日救援费,这位货车司机只好在这条无法转弯的窄巷里呆了三天才求救。 相似文献
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Thomas Volling Thomas S. Spengler 《International Journal of Production Economics》2011,131(1):183-193
In adopting build-to-order order fulfillment systems, automotive companies strive to better synchronize their production output with market demand. This essentially gives rise to a new paradigm in production planning. Since all business is linked to customer orders, the operational performance is substantially determined by order-driven planning. Therefore, a clear understanding of the associated planning tasks, order promising and master production scheduling, as well as their dynamic interaction is essential. Based on the analysis of the decision situation of order-driven planning in build-to-order settings, we provide a framework comprising separate interlinked quantitative models for order promising and master production scheduling. The focus of the contribution is on the modeling and evaluation of both models in a dynamic setting. The approach is evaluated by means of a simulative analysis using empirical data from the automotive industry. Conclusions regarding the potentials of such systems with respect to customer service, the leveling of resource utilization, and holding are presented. 相似文献
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Two new batch construction heuristics called K-means Batching (KMB) and Self-organisation Map Batching (SOMB) are developed and verified by simulation experiments. Both KMB and SOMB have a preferment of superior performance in total travel distance and average picking vehicle utility, and even a conspicuous improvement in total CPU running time. Besides, this paper investigates the overall performance of order picking systems integrating storage assignment, order batching and picker routing to find the optimal policy combinations under different order types. The sensitivity analysis is performed to distinguish the relative importance of the various strategies to enhance the performance of operations management. 相似文献
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Modem information technologies have become important means for manufacturing and retailing firms to gain such competitive advantages as lower logistics costs and securer customers' loyalty. In this paper, we investigate a joint inventory system where the vendor produces a single item for its sole buyer and the buyer sells the item to consumers with backorders allowed. Each production lot is delivered to the buyer in a number of shipments and consecutive shipments will be increased by a fixed factor. Both vendor and buyer are willing to participate in order processing time reduction by applying information technologies in order to decrease their joint total cost. The order processing time can be reduced by certain expenditures and will affect the lot-size decisions. An analytical model is developed for determining the optimal expenditure in order processing time reduction and lot sizes for both vendor and buyer. The numerical experiment along with sensitivity analysis is also performed to obtain some insights of our model. 相似文献
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为克服传统危险源及可操作性分析(HAZOP)的主观性,提高LNG加气站风险管理水平,提出HAZOP定量分析方法。该方法以传统的HAZOP分析方法为基础,结合道化学火灾、爆炸指数评价法(FEI)和事故树分析(FTA),运用风险矩阵,使HAZOP分析能进行定量评价。根据LNG加气站工艺流程,将LNG加气站划分为11个节点,以LNG储罐"压力过高"偏差为例,通过量化的HAZOP分析得到其危险等级,并提出了有针对性的建议措施。结果表明,定量HAZOP分析可以有效地识别LNG加气站风险,可作为LNG加气站风险管理的工具之一。 相似文献
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为了解决高轨宽带、高轨移动、低轨星座卫星通信系统融合使用时,运行态势不全面、不精确等问题,设计了基于决策融合的多卫星通信系统态势分析技术。首先,借鉴数字孪生理论,建立板卡级、设备级、节点级、网络级、应用级5个层级体系化数字空间模型。其次,提取数据特征,得到高质量数据样本。最后,通过决策融合分析方法,对数据样本运用多种算法进行初步分析,再将不同算法的分析结果进行融合得出最终结果。结果表明,基于决策融合分析,能够对真实多卫星通信系统的不同指标主题得出较好的分析结果。因此,决策融合得到的分析结果可以帮助卫星通信系统运维人员更好地优化多卫星通信系统的运行状态。 相似文献
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为了提高生产效率、降低劳动强度,必须实现医用乳胶手套内包装折边工艺的自动化。对交叉带的动力学分析表明,可以采用180°交叉带实现内包装纸折边,但易发生交叉带跑偏现象;进一步分析找出了交叉带跑偏的原因,通过合理设计可以解决该问题。通过对传送系统的有限元分析,找出了系统前10阶固有频率,为提高系统稳定性提供了理论基础。 相似文献
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Euthemia Stavrulaki 《International Journal of Production Economics》2011,129(1):65-78
We study a retailer’s inventory policy for two products. The products are substitutable and have inventory dependent demand, so a higher inventory level of a product increases its sales. We model the joint effect of demand stimulation and product substitution on inventory decisions by considering a single-period, stochastic demand setting. We provide the first order optimality conditions for the profit maximizing order quantities and interpret them using marginal analysis. We also consider two heuristic solutions that separately account for either demand stimulation or product substitution. Our numerical analysis reveals that the optimal policy by appropriately using sales information that quantifies substitution and demand stimulation can produce significantly higher profits. The profit benefits are lessened under certain circumstances, such as when the two products have similar critical fractile values, suggesting that in such instances the heuristics may be used effectively. 相似文献
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服务贸易的日益快速增长是我国入世后服务贸易的特点之一。本文通过引入贸易竞争指数,对入世前后两个阶段的服务贸易与经济增长关系进行实证的比较分析,以寻求对入世前后两个不同阶段的经济增长效应分析。分析结果说明入世以来我国对外服务贸易受到的冲击较大。对此,文章将发挥静态比较优势和培育动态比较优势相结合,就服务贸易对经济增长的推动作用提出了可行的政策建议。 相似文献