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A Theoretical Analysis of the Acceleration and the Angular Momentum of the Universe
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作者 Ardeshir Irani 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第1期101-105,共5页
The loss of Baryonic Matter through Black Holes from our spatial 3-D Universe into its 4th dimension as Dark Matter, is used along with the Conservation of Angular Momentum Principle to prove theoretically the acceler... The loss of Baryonic Matter through Black Holes from our spatial 3-D Universe into its 4th dimension as Dark Matter, is used along with the Conservation of Angular Momentum Principle to prove theoretically the accelerated expansion of the 3-D Universe, as has already been confirmed experimentally being awarded the 2011 Nobel Prize in Physics. Theoretical calculations can estimate further to indicate the true nature of the acceleration;that the outward acceleration is due to the rotation of the Universe caused by Dark Energy from the Void, that the acceleration is non-linear, initially increasing from zero for the short period of about a Million years at a constant rate, and then leveling off non-linearly over extended time before the outward acceleration begins to decrease in a non-linear fashion until it is matched by the gravitational attraction of the matter content of 4D Space and the virtual matter in 3-D Vacuum Space. m = m(4D) + m(Virtual). The rotation of our 3D Universe will become constant once all 3D matter has entered 4D space. As the 3-D Universe tries to expand further it will be pulled inward by its gravitational attraction and will then keep on oscillating about a final radius r<sub>f</sub> while it also keeps on oscillating at right angles to the radius r<sub>f</sub> around final angular velocity ω<sub>f</sub>, until it becomes part of the 4-D Universe. The constant value of the Angular Momentum of our Universe is L = . 展开更多
关键词 3-D Baryonic Matter 3-D Virtual Matter 4-D Dark Matter non-linear Acceleration Final Radius Final angular Velocity Conservation of angular Momentum Principle
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电位计式角位移传感器测试系统的动态性能研究 被引量:10
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作者 郭华玲 孟立凡 冯伟 《陕西科技大学学报(自然科学版)》 2010年第6期87-89,105,共4页
电位计式角位移传感器以其结构简单、性能稳定、能适应恶劣环境等特点,广泛应用于航天航空、军事、民用各行业.但也由于它的测试精度不高、动态响应较差而极大地限制了电位计的使用范围.作者在阐述电位计式角位移传感器原理的基础上,着... 电位计式角位移传感器以其结构简单、性能稳定、能适应恶劣环境等特点,广泛应用于航天航空、军事、民用各行业.但也由于它的测试精度不高、动态响应较差而极大地限制了电位计的使用范围.作者在阐述电位计式角位移传感器原理的基础上,着重分析了系统的动态响应性能,设计了三阶低通滤波器,并采用零极点配置设计其补偿电路,改善了系统的动态响应,提高了所测信号的精度,最后用MATLAB仿真对比了补偿前后单位阶跃信号输入下的幅频特性,分析说明了测试系统的动态性能指标. 展开更多
关键词 电位计式角位移传感器 动态响应 幅频特性 低通滤波器
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非线性角度电位器及其在仿真伺服系统中的应用研究(英文)
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作者 段海滨 王道波 +1 位作者 黄向华 朱加强 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2004年第3期551-554,共4页
提出了一种将非线性角度电位器用于仿真伺服系统设计的新方案.首先推导了非线性角度电位器的数学模型,非线性角度电位器可将转角量转化为电压或电阻信号,然后将非线性角度电位器用于仿真伺服控制系统的模拟位置闭环,仿真伺服控制系统整... 提出了一种将非线性角度电位器用于仿真伺服系统设计的新方案.首先推导了非线性角度电位器的数学模型,非线性角度电位器可将转角量转化为电压或电阻信号,然后将非线性角度电位器用于仿真伺服控制系统的模拟位置闭环,仿真伺服控制系统整体结构采用四闭环控制.仿真实验表明,采用非线性角度电位器的仿真伺服系统具有较高的控制精度、功能完善、可维护性好、具有很强的鲁棒性. 展开更多
关键词 非线性角度电位器 仿真伺服系统 控制器 工控机
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