Gamification in theory and action: A survey

Gamification has drawn the attention of academics, practitioners and business professionals in domains as diverse as education, information studies, human–computer interaction, and health. As yet, the term remains mired in diverse meanings and contradictory uses, while the concept faces division on its academic worth, underdeveloped theoretical foundations, and a dearth of standardized guidelines for application. Despite widespread commentary on its merits and shortcomings, little empirical work has sought to validate gamification as a meaningful concept and provide evidence of its effectiveness as a tool for motivating and engaging users in non-entertainment contexts. Moreover, no work to date has surveyed gamification as a field of study from a human–computer studies perspective. In this paper, we present a systematic survey on the use of gamification in published theoretical reviews and research papers involving interactive systems and human participants. We outline current theoretical understandings of gamification and draw comparisons to related approaches, including alternate reality games (ARGs), games with a purpose (GWAPs), and gameful design. We present a multidisciplinary review of gamification in action, focusing on empirical findings related to purpose and context, design of systems, approaches and techniques, and user impact. Findings from the survey show that a standard conceptualization of gamification is emerging against a growing backdrop of empirical participants-based research. However, definitional subjectivity, diverse or unstated theoretical foundations, incongruities among empirical findings, and inadequate experimental design remain matters of concern. We discuss how gamification may to be more usefully presented as a subset of a larger effort to improve the user experience of interactive systems through gameful design. We end by suggesting points of departure for continued empirical investigations of gamified practice and its effects.     

Novel neural network modeling method and applications

Neural networks play an important role for designing the parametric model of electromagnetic structures. The current neural network methods are unfit for a circuit model with many input variables because it is costly to extract a large number of the training data and test data to complete the highly nonlinear mapping approximation. This article proposes a new neural network modeling method—the multidimensional neural network model, which can be used to solve the issue of multivariable radiofrequency and microwave passive device modeling. The entire multidimensional neural network modeling problem is simplified into a set of neural network submodels through decomposition method. Then the submodels are combined into an equivalent model, and the final entire model is produced through the neural‐network mapping model developed with the submodels and equivalent model. A microstrip hairpin filter model is developed using the proposed method. The simulation results show the correctness and the effectivity of the proposed method. © 2015 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:769–779, 2015.     

基于知识工程模板的月牙肋岔管参数化设计

基于CATIA软件的知识工程技术,提出了月牙肋钢岔管的三维参数化设计方法。选取合适的定位条件,并通过建立参数关联实现用户输入参数与草图、三维模型之间的驱动关系,建立了通用的月牙肋岔管的设计模板。采用该模板可以快速确定月牙肋岔管多种设计方案,并导入有限元软件进行结构分析,获得最终设计方案。在三维模型上进行焊缝分缝设计后,借助曲面展开功能获得管节展开图,并自动生成控制点坐标表和材料表。该设计方法以建立模板为核心,整合了岔管参数化建模、有限元结构分析、焊缝分缝设计和绘制岔管展开图四大功能,满足了月牙肋岔管施工详图阶段的设计需求,在工程应用中显示了设计效率高的优点。     

黄河下游引黄涵闸清淤设备的设计方案研究

本文解决了快速清除引黄涵闸淤积泥沙设备的设计方案问题。该设备的工作原理是将高压水喷射到闸门前淤积的泥沙层,靠高压水的冲击力清除闸门前的淤积泥沙。它主要由高压供水喷水系统和喷水装置牵引支撑系统两部分构成,被固定地安放在闸门上方,其构造简单、安装维护方便,具有良好的实用价值,有利于推广应用。     

平面有轨弧型双开节制闸在水利工程中的应用

平面有轨弧型双开节制闸是用于河道进行防洪调控和兼顾通航两项要求的的一种新型技术,尚属于起步阶段,当前还未得到全面推广。本研究以南水北调中线一期引江济汉工程拾桥河左岸节制闸工程为实例,对平面有轨弧型双开节制闸的工作原理及闸涵的设计标准、工况条件进行研究分析,为该类节制闸的更加广泛的推广和应用提供参考。     

水电工程施工区水泥混凝土路面设计方法探讨

根据现行水电工程施工区水泥混凝土路面设计规范,以水泥混凝土面板疲劳强度作为控制指标,比较了两种设计方法的计算结果,发现按照《公路水泥混凝土路面设计规范》计算所得的水泥混凝土路面结构厚度较厚。通过分析这两种设计方法的差异,提出《厂矿道路设计规范》更适合用来指导水电工程施工区水泥混凝土路面的设计,同时也提出该规范还需进一步完善,以考虑最重轴载对施工区的极限破坏作用。     

基于总入流概念的鄱阳湖设计洪水计算

由于受到江河湖槽自然演变和人类活动的影响,鄱阳湖出湖控制站实测资料无法满足一致性和可靠性要求,再加上湖区水情复杂、观测资料匮乏,导致设计洪水计算面临较大困难。基于入库洪水理论,引入了总入流的计算方法,对于湖区各支流控制站和无控区间来水的流量过程,只考虑传播时间的叠加,避免了对各种自然、人为因素影响的定量计算,计算结果真实反映了洪水量级与时程分配过程,满足设计洪水计算规范要求。计算成果可为鄱阳湖区综合规划、水利枢纽设计提供依据。     

基于Promis·e的变电站二次接线协同设计

提出了一种基于Promis·e设计环境的变电站电工二次专业协同设计方法,对协同平台的建立、制图标准化、设备模型库构建以及协同设计流程等协同设计中的一些关键环节进行了描述,并结合工程实践,给出了协同设计各关键点的应用实例及解决方案。所提出的变电站二次接线协同设计方法,已经在10余座220 kV的变电站项目中得到了应用,它可以大幅度地提高设计效率,保证设计成果的质量,具有继承性、拓展性和参照性。     

预应力锚索腐蚀耐久性试验方案设计探讨

预应力锚索在岩土工程加固中应用广泛,其腐蚀耐久性对工程运行安全至关重要,而相关的腐蚀变化规律及机理还有待进一步明确。在总结当前预应力锚索腐蚀耐久性研究成果的基础上,对其腐蚀耐久性室内加速试验方案设计进行了探讨。分析了影响腐蚀的主要因素并拟定了各因素的不同影响水平;采用正交设计方法优化试验方案并通过有限元方法对试验模型尺寸和应力分布进行了计算模拟优化和验证;介绍了模型制作等工艺步骤。相关成果可供类似耐久性试验方案设计参考。      

布新水库溢洪道加固设计

针对布新水库溢洪道存在的问题,提出设二级消力池重建方案,并对溢流坝进行帷幕灌浆,对泄槽及消力池底板下的水平纵、横排水系统等进行改造的设计方案。通过两年的蓄水运行证明所提出的设计方案是有效的。