排序方式： 共有124条查询结果，搜索用时 15 毫秒
71.
《机电一体化系统设计》是一门实践性和综合性都很强的课程。该课程过去侧重于理论知识的讲授,实践环节偏少,教学效果不尽如人意。海军工程大学机械工程系在教学过程中注意因材施教,不断调整教学内容、教学方法,对课程的教学改革做了一些有益的探讨,收到了良好的教学效果。 相似文献
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伴随着军事院校培养目标的转型,当前军事院校体育课程内容体系的改革取得了一定的进展,但是还存在一些问题。这些问题主要表现在：内容设置单调枯燥,灵活性和吸引力不够、对职业素质要求不够重视,过于竞技化、忽视终身体育意识和锻炼习惯的培养、忽视理论知识传授。而这些问题的解决,需要以适应军事院校培养目标的需要为出发点,以学员身心发展的特征及学员运动技能的掌握和提高为依据,选择和组织体育的教学内容。 相似文献
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在人才培养模式转型的过程中,应有针对性地采取精神激励方法,如感情激励、目标激励、兴趣激励、荣誉激励、环境激励等方法,更好地激发学生的内在潜能,调动其学习积极性和自我提高、自我完善的意识,不断提高学员的综合素质和人才培养质量. 相似文献
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《Journal of The Franklin Institute》2019,356(8):4240-4269
In this work, finite time position and heading control based on backstepping based fast terminal sliding mode control is proposed for coaxial octorotor subjected to external wind disturbances. First, mathematical model of the coaxial octorotor is developed and then a new learning-based technique, an extended inverse multi-quadratic radial basis function network (EIMRBFN) is proposed to estimate the unmodeled dynamics of the octorotor. The external disturbance observer is also designed to encompass the realistic disturbance effect in the dynamical model and to allow the controller handle external disturbances, effectively. Backstepping controller based on fast terminal sliding model control is then proposed and also applied on the resultant dynamical model that provides finite time convergence of system's states. The stability of the proposed controller and complete system is analyzed using Lyapunov stability theory. Finite time convergence analysis of the desired trajectory is also provided. Simulations are carried out to validate the effectiveness of the proposed control scheme. Comparison with traditional PID and LQR controllers also verifies that the proposed controller achieves improved performance. 相似文献
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基于词嵌入语义的精准检索式构建方法 总被引：1，自引：0，他引：1
[目的/意义]使用科技文献数据库进行文献检索时,检索式中的关键词如果不够全面,将导致检索结果查全率较低;检索式中的关键词如果一词多义,则可能向检索结果中引入无关文献,导致查准率较低。[方法/过程]针对这两类问题,本文提出使用词嵌入这一新颖的文本数据化表现形式,一方面通过语义分析对检索关键词进行扩充从而提高查全率;另一方面通过发现语义异常点来提高查准率。[结果/结论]本文将该方法应用于人工智能领域中深度学习方向上的文献检索式构建,实验结果表明该方法能在一定程度上提高检索的查全率和查准率。 相似文献
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Since the 18th National Congress of Chinese Communist Party,the great call for building a maritime power and a power?ful military force has set higher standards for Navy’s development and the application of strategies.As a maritime military force,the navy bears considerable responsibilities of safeguarding territorial sovereignty,maritime rights and interests with security and development as core mission,and defending the role and image of China as a major county in the world.This paper analyzes and studies naval officers’global competence development from three aspects,and discusses the significance and recommendations of strengthening the development of naval cadets’global competence in cooperation and exchange guided by“Belt and Road”Initia?tive(BRI). 相似文献
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推动和加强任职教育工作是当前军事院校教学工作的重大任务,只有正确把握教学思路,才能真抓实干。本文提出任职教育工作的重心在于认真落实“三大任务”,即培养复合型军事人才、建设综合型培训平台、瞄准科技型现代战争,力争做到“两个贴近”,即贴近教学、贴近部队,努力实现“一个目标”,即构建院校与部队一体化。 相似文献
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Ag/AgCl electrode has been prepared using pressed powder techniques. In order to verify the feasibility of this type of electrode used as detecting electric field generated by vessels in seawater, its characteristics of DC resistance, low frequency AC impedance, and receiving impedance in artificial seawater have been studied by polarization measurements, low frequency electrochemical impedance spectra, the open and short circuit cell conditions. The results show that the electrode can keep a low resistance when it responses the weak electrostatic field in seawater. The AC impedance of the electrode decreases as the frequency of the signal increasing. The receiving impedance decreases when the frequency of external field increases too. The valid detection bandwidth is determined by the properties of the impedance and the reactions occurring on the surface of the electrode. 相似文献
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《信号与系统》课程群的建设与教学改革探索 总被引：5，自引：0，他引：5
《信号与系统》课程群包含《信号与系统》、《数字信号处理》和《DSP技术及应用》三门课程。本文以建设《信号与系统》课程群为对象,对课程群建设内涵、课程的结构与融合和课程群的建设方案等问题进行了讨论,并从理论上阐述了对于课程群建设的认知,目的在于激发学员学习兴趣、培养学员创新思维能力、提高学员独立分析与解决问题能力,进一步提高课程群的教学质量。 相似文献