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关键词： 模拟公司   项目教学   教学模式  

摘要： 模拟公司项目教学模式能够解决高职院校缺乏实习场所及毕业生缺乏实践能力的问题,对毕业生就业竞争力的提高及高素质技能型人才培养发挥了重要作用。

关键词： 项目驱动   教学法   Java  

摘要： 随着计算机技术和软件技术的迅猛发展,软件开发行业已经成为吸引计算机和软件工程毕业生就业的重要领域;如何提高学生在校期间的软件开发技术帮助学生快速融入企业成为了高校教学的重要参考;传统上,程序设计语言类的课程开展仍然按照讲授法进行,着重理论,弱化实践,这对培养应用型人才的专科教学设置了障碍。本文提出了基于项目驱动的程序设计课程(Java),利用2-3个实战项目贯穿教学的始终,不仅帮助学生理解细节知识点,语法要求,更能帮助学生完成真个项目的开发,而不再是过去窥豹一斑的教学发。经课堂验证,基于项目驱动的程序设计语言的讲授深受学生的欢迎。该项目教学法不仅关注细节,更重要的是帮助学生了解项目开发的全过程,而不是仅仅关注编码。

关键词： Java程序设计   JDK   源码   实践教学   编程能力   设计模式  

摘要： 提出在课程中引入JDK源码的学习,阐述通过阅读、分析、重写及应用JDK源码,学习JDK源码中的语法、基本库、数据结构、设计模式等内容,能提高源代码的阅读能力、编写规范代码的能力,并为应用设计模式、架构复杂项目打下良好的基础。

摘要： INTRODUCTION The identification of repeating earthquakes by waveform cross correlation (multiplet analysis) has many applications in the analysis of seismic data and is increasingly being applied to volcanic‐seismic datasets. Multiplet analysis can be used to evaluate stress changes at volcanoes, to constrain the depth of explosions, or to improve locations of small‐amplitude events (Buurman and West, 2010; Thelen et?al., 2011; Battaglia et?al., 2012; West, 2013). Repeating earthquakes often occur during tectonic earthquake sequences (Nadeau et?al., 1995; Peng and Zhao, 2009), can occur within large regional seismic data catalogs (Schaff and Richards, 2011), and have been observed as microearthquakes on creeping faults (Waldhauser and Ellsworth, 2002; Malservisi et?al., 2005) and as icequakes in glaciers (Carmichael et?al., 2012; Thelen et?al., 2013). Multiplet analysis thus has the potential to be an intrinsic part of the seismologist’s toolbox; however, many studies cite computational limitations when analyzing multiplets (Petersen, 2007; Thelen et?al., 2010, 2011; Ketner and Power, 2013). Cross correlation is computationally expensive and large datasets can rapidly become difficult to analyze. Cross‐correlation algorithms are considered Big‐O(N²) problems (in which N is the total number of events) in terms of the performance time of the algorithm (Black, 2004). Seismic data catalogs of hundreds of thousands of events are not uncommon at well‐monitored volcanoes (Ketner and Power, 2013), and global seismic catalogs can number many millions of events (Addair et?al., 2014).

关键词： Cracked specimen   Near-crack-tip fields   Williams expansion   Higher order terms   Stress field reconstruction   Finite element analysis   Java application  

摘要： A quality of multi-parameter approximation of the stress and displacement fields around a crack tip in a non-brittle material test specimen is studied in the paper. The stress field approximation using Williams power series is intended to be utilized for estimation of the nonlinear zone extent which potentially plays a role within methods for determination of true values of fracture parameters of materials exhibiting nonlinear failure. Considering the fact that in the case of elastic-plastic and especially quasi-brittle materials the size of this zone is substantial in comparison to the specimen dimensions, it is necessary to take a large region around the crack tip into account for this task. An automatic utility created to determine the values of coefficients of the higher order terms of Williams power series by usage of over-deterministic method applied on results of finite element analysis of arbitrary mode I test geometry is one of the tested procedures. The second one provides a backward reconstruction of the crack-tip stress field analytically by means of truncated Williams expansion. The developed procedures are based on the support of Java programming language and considerably simplify analyses of the mechanical fields' description in a farther distance from the crack-tip. The presented research is focused on optimization of selection of FE nodal results for improvement of accuracy of the approximation.

关键词： Monte Carlo algorithm   Energy cone   InSAR method   Pyroclastic flows   Merapi volcano   Central Java   Indonesia  

摘要： Volcanic eruption hazard mapping is very important to fulfill information needs to prepare for emergency situations. Rapid mapping is one of the steps necessary for emergency response in disaster mitigation effort. Limitations of time, data, and knowledge mapping techniques can be a problem when performing the operational work. In this research, the combinations of the Monte Carlo algorithm and energy cone model have been applied to reproduce the probability of block-and-ash type of pyroclastic flows of the 2010 eruption of Merapi volcano. These approaches are applied as an alternative method of rapid, objective, and reproducible for hazard mapping of pyroclastic flows. In addition, the method of Interferometry Synthetic Aperture Radar (InSAR) has been used in this research to update the digital elevation model (DEM) data. The availability of DEM data updates was required as input of topography, which determines the pyroclastic flows. This research has produced DEM PALSAR 2010 pre-eruption of Merapi volcano, with a spatial resolution of 30 m. The result of the vertical accuracy calculations was performed using the root mean square error (RMSE) approach, which show the value of RMSE at 9.08 m. There are four eruptive phases, which have been used for the simulation scenarios, namely: phase 1 (period 26-29 October 2010), phase 2 (period 30 October-3 November 2010), phase 3 (period 4-5 November 2010), and phase 4 (period 6-23 November 2010). The results of the Monte Carlo algorithm to reproduce the effects of the 2010 eruption of Merapi volcano, has show that the height correction (hc) on the DEM data gives effect to the probability distribution of pyroclastic flows. At the hc=1, 2, 3, 4, and 5 m, the value of overall accuracy based on cross-correlation matrix of the reference map are 76.38, 77.38, 77.00, 77.75, and 77.25 %, respectively. In these scenarios, the hc=4 m can give the best accuracy. Meanwhile, the results of the comparison of the results of the difference

关键词： Java程序   教学   教材   方法  

摘要： 随着计算机技术的发展,越来越多的高校都开有Java程序设计专业课程,如何使Java语言教学在课堂教学中达到良好的效果,是高校老师一直在探索的热点话题。该文从Java的教材内容,教学内容设计以及教学的方法上进行了深入地分析与探索,实践证明该教学方法能有效的促进学生对Java语言程序应用的能力,具有良好的课堂效果。

关键词： 项目载体   程序设计   教学设计  

摘要： 改变传统的知识体系教学模式,基于项目载体、以Java程序员的职业能力和素质为标准,对高职"Java程序设计"课程进行教学设计与实践,希望通过不断探索与改革,能够调动学生的学习积极性,培养学生的职业能力和职业素质。

关键词： JAVA程序   应用   伪随机数  

摘要： 伪随机数发展对以往的追求随机数列的方法有了很大效率上的提升,将其应用到JAVA程序当中对运行的效率有了很大改变。基于此本文则主要就伪随机数进行详细阐述,并对其在JAVA程序当中的实际应用加以详细探究分析,希望能够通过此次的理论研究对实际操作起到一定指导作用。

关键词： 首要教学原理   高职程序设计   JAVA程序设计  

摘要： 针对高职《JAVA程序设计》实践性强,理论深,传统的课堂教学缺少聚焦完整工作任务,比较关注个别零散知识技能的问题,尝试把首要教学原理引入到实际的课堂教学中,并通过具体的案例加以应用,为高职《JAVA程序设计》课堂教学改革进行了有益的探索。