基于虚拟现实技术的救助船对外消防培训仿真系统   总被引：1，自引：0，他引：1  

杨可男  张均东  叶子文  伊泓嘉 《上海海事大学学报》2019,40(2):95-100

针对救助船消防训练中存在的海况复杂,对外消防炮射流受风影响大,往往无法准确控制其射向目标区域的问题,在理想状态下射流理论的基础上探究风对射流轨迹的影响,建立自然风条件下射流轨迹的数学模型,模拟对外消防炮射流的运动情况。应用3ds Max构建船舶模型,用Unity3D构建救助船在面临大风浪、遇险船着火等状况时对外消防系统的工作场景,提出一种精确构建粒子系统轨迹的方法,使射流模型能精确体现在场景中。通过虚拟现实设备能实现救助船对外消防培训仿真系统的立体显示和人机交互,起到更好的虚拟仿真和培训效果。  相似文献   

Digital Module 05: Diagnostic Measurement—The G‐DINA Framework https://ncme.elevate.commpartners.com     

Wenchao Ma  Jimmy de la Torre 《Educational Measurement》2019,38(2):114-115

In this ITEMS module, we introduce the generalized deterministic inputs, noisy “and” gate (G‐DINA) model, which is a general framework for specifying, estimating, and evaluating a wide variety of cognitive diagnosis models. The module contains a nontechnical introduction to diagnostic measurement, an introductory overview of the G‐DINA model, as well as common special cases, and a review of model‐data fit evaluation practices within this framework. We use the flexible GDINA R package, which is available for free within the R environment and provides a user‐friendly graphical interface in addition to the code‐driven layer. The digital module also contains videos of worked examples, solutions to data activity questions, curated resources, a glossary, and quizzes with diagnostic feedback.  相似文献   

Scapular motion adaptations in junior overhead athletes: a three-dimensional kinematic analysis in tennis players and non-overhead athletes     

Elif Turgut  Filiz Fatma Colakoglu  Gul Baltaci 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(3):308-316

Adult overhead athletes without a history of shoulder injury show scapular adaptations. There is a lack of detailed assessment of scapular kinematics in junior overhead athletes. This study aims to investigate three-dimensional scapular kinematics in junior overhead athletes. We recruited a total of 20 junior tennis players and 20 healthy children without participation in any overhead sports in this study. Bilateral scapular kinematic data were recorded using an electromagnetic tracking device for scapular plane glenohumeral elevation. The data were further analysed at 30°, 45°, 60°, 90° and 120° during glenohumeral elevation and lowering. Statistical comparisons of the data between groups (junior overhead athletes and non-overhead athletes) and sides (serve dominant and non-dominant shoulders of the overhead athletes) were analysed with the ANOVA. Comparisons showed that, in general, the scapula was more upwardly rotated and anteriorly tilted in overhead athletes when compared to non-overhead athletes, however there was no side-to-side differences when serve dominant and non-dominant shoulders compared in junior overhead athletes. The serve dominant arm of junior overhead athletes had alternations in scapular kinematics when compared with the non-overhead athletes. These findings provide clinical evaluation implications and the need for clinicians to assess for potential adaptations in junior overhead athletes.  相似文献   

展开式变奏在勃拉姆斯《D大调小提琴协奏曲》中的创作技法研究     

偶潇潇 《安徽职业技术学院学报》2020,(1):58-62

文章通过对勃拉姆斯《D大调小提琴协奏曲》的详细剖析,从主题构建、呈示部创作、全曲整合多角度分析阐述展开式变奏在特定作品中的实际运用,并探析在这首作品中展开式变奏所呈现的独特创作技法,为研究勃拉姆斯创作手法中的创新性提供一定的参考。  相似文献   

引企入校建深度实训基地提升学生综合职业力     

符静 《辽宁高职学报》2014,(6):73-75

我国职业教育近年来异军突起,招生火,就业率高,优势逐渐显现。为了我国职业院校可持续发展、继续保持良性循环,在此提出"引企入校建深度实训基地,提升学生综合职业力"的观点,并从三个方面阐述:一是我国职业教育实训教学现状与存在的问题,二是引企入校建深度实训基地、提升学生综合职业力的特色,三是实施路径。旨在抛砖引玉,探索出符合我国职业教育实训教学发展特色和规律的途径、方法,为加快推进我国经济发展方式转变提供强有力的高素质技能型人才。  相似文献   

论行业协会在提高中小企业自主创新能力中的作用及立法完善     

蹇勇  何礼果  宋寒亮 《河西学院学报》2011,27(1):82-85

中小企业由于自身条件的限制,面对激烈的市场竞争,在企业自主创新过程中面临诸多困境。行业协会作为行业利益的代表者,在政府与市场主体之间起到沟通的作用。行业协会可以利用市场信息,行使职权,帮助中小企业解决困难,从而提高中小企业自主创新的能力。针对行业协会面临的困境进行立法完善,以保障其功能的发挥。  相似文献   

试述马克思主义职业教育思想中国化新成果——校企一体化     

吴同喜 《浙江工贸职业技术学院学报》2011,11(4)

本文在马克思主义职业教育思想中国化的视角下,从校企合作一体化育人、半工半读一体化学习、生产实践一体化作业、课程共担一体化实施、双师互动一体化指导等五个方面,来充分论述校企合作新模式即校企一体化的基本内涵和理论渊源。  相似文献   

校企共建特色课程和教材的探讨与实践     

吴金娇  刘树青 《中国现代教育装备》2011,(9):102-103

针对校企共建在应用型本科高校中的巨大作用,指出校企共建特色课程和教材建设是深化校企合作共建的有效措施,介绍了海德汉数控系统操作与编程加工特色课程和教材建设的实例。  相似文献   

Enterprise Changing into Networking Rapidly     

王雪莹 《读与写:教育教学刊》2011,8(1):7

With the development of IT technology,the enterprises change into networking with faster speed,and now we have entered the information age,and the speed has become our constant pursuit.For the marketing department which is essential to each enterprise is changing with more advanced speed,and people begin to transfer to network marketing.  相似文献   

汉代循吏的行政风范     

邱少平  张艳霞 《湖南城市学院学报》2011,32(6)

汉代循吏在历史上是颇具人格魅力的一批官员。他们在注重发展地方经济、关心百姓疾苦、积极传播儒家文化的同时,还以身作则,清正廉洁,遵守法律,深得朝廷的认可和百姓的尊敬与爱戴。  相似文献