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典型跟驰模型的特征与性能分析 被引量:1
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作者 陈征 闫冬梅 +1 位作者 刘钊 郭建华 《交通科技》 2018年第3期98-102,共5页
为对比分析传统的跟驰模型在描述车辆行驶特性中的应用特征,从模型形式和基本特征两方面对典型的刺激-反应类GM模型、安全距离类Gipps模型、优化速度类FVD模型进行了对比分析。为验证以上理论分析结果,对3种跟驰模型分别进行了数值仿真... 为对比分析传统的跟驰模型在描述车辆行驶特性中的应用特征,从模型形式和基本特征两方面对典型的刺激-反应类GM模型、安全距离类Gipps模型、优化速度类FVD模型进行了对比分析。为验证以上理论分析结果,对3种跟驰模型分别进行了数值仿真分析,并分别对前后车之间的速度变化关系以及位置变化关系进行了对比分析。实验结果表明,相较于GM模型与Gipps模型,FVD模型在应用中更符合实际情况,能够较为准确地描述单一车辆加速或减速的行驶特性。 展开更多
关键词 跟驰模型 微观交通仿真 GM模型 Gipps模型 FVD模型
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Research on Fso modulation classification algorithm based on deep learning
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作者 LIU Xiaoxin LI Ming liuzhao 《Optoelectronics Letters》 EI 2024年第12期757-763,共7页
For FSO communication atmospheric turbulence has a large impact on signal modulation,the convolution-profile stellar data image conversion algorithm proposed in this paper performs data conversion on the received cons... For FSO communication atmospheric turbulence has a large impact on signal modulation,the convolution-profile stellar data image conversion algorithm proposed in this paper performs data conversion on the received constellation maps,so that they retain more original signal feature images.A classification network based on the channel attention mechanism is proposed to classify the modulated signals by extracting the feature information in the image through the residual structure,and the attention mechanism assigns different weights of the channel features.Under the same data conversion algorithm,the proposed classification network achieves the highest recognition accuracy of 96.286%. 展开更多
关键词 NETWORK ALGORITHM IMAGE
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Study on Application of Seamless Nursing Model in Nursing Care of HD Combined with HP in Treatment of Uremia
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作者 DINGShuzhen KUANGXianmin +1 位作者 ZENGYan liuzhao 《外文科技期刊数据库(文摘版)医药卫生》 2022年第8期190-193,共4页
Objective: To explore the value of combined intervention for nursing patients with uremia, namely HD (hemoperfusion) combined with HP (hemodialysis). Methods: Choose in February 2020 - February 2022 as A case study ra... Objective: To explore the value of combined intervention for nursing patients with uremia, namely HD (hemoperfusion) combined with HP (hemodialysis). Methods: Choose in February 2020 - February 2022 as A case study range, object to enter the HD joint HP treated in our hospital and uremic patients, quantity statistics for 100 cases, included in the category mode can be identified as double-blind principle, into group A and group B 50 cases respectively, which choose the mode of conventional intervention, the former seamless nursing intervention mode selection, Compare the two groups how to reflect the specific nursing effect. Results: Before and after intervention, the indexes of the two groups were compared, including quality of life, psychological level, inflammatory factors, etc., which showed that the observation group was better than the control group after nursing, indicating P value 0.05. Conclusion: Through the implementation of seamless nursing measures for HP combined with HD in the treatment of uremia patients, committed to physiological and physiological dual quality assurance, improve patients nursing satisfaction, the results of the study confirmed that it can be used for clinical promotion. 展开更多
关键词 seamless care mode hem perfusion HEMODIALYSIS UREMIA
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Analysis on the Key Points of Moral Education Infiltration in the Construction Course of Secondary Vocational Schools
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作者 liuzhao 《外文科技期刊数据库(文摘版)教育科学》 2022年第4期021-025,共5页
In the construction course of secondary vocational schools, moral education is integrated into teaching activities, which plays a great role in training and development. With the development of construction, higher re... In the construction course of secondary vocational schools, moral education is integrated into teaching activities, which plays a great role in training and development. With the development of construction, higher requirements are put forward for the quality of engineers and technicians. Secondary vocational school graduates should have both good professional quality and good professional ethics. Therefore, in the construction project, the moral education of students should be strengthened so that they can master professional theories and skills, improve their professional ethics and lay a solid foundation for their future work. 展开更多
关键词 secondary vocational construction engineering construction curriculum key points of moral education penetration
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The Origins of Zedang Peridotite in Eastern Yarlung-Zangbo Suture in Tibet
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作者 LAI Shengmin YANG Jingsui +6 位作者 XIONG Fahui liuzhao TIAN Yazhou Xu Xiangzhen ZHANG Lan CHEN Yanhong GAO Jian 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2015年第A02期39-39,共1页
The Zedang mafic-ultramafic body crops out in the eastern Yarlung-Zangbo suture zone of Tibet. This massif consists of mantle peridotite, gabbro, diabase and volcanic rocks. The mantle peridotites are mostly harzburgite,
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The statistical distributed source boundary point method to calculate the acoustic radiation from the random vibrating body
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作者 WANGXiufeng CHENXinzhao liuzhao 《Chinese Journal of Acoustics》 2003年第4期369-377,共9页
The statistical distributed source boundary point method (SDSBPM) put forward is applied to calculate the acoustic radiation from the random vibrating body. A detailed description of this method is presented. A test f... The statistical distributed source boundary point method (SDSBPM) put forward is applied to calculate the acoustic radiation from the random vibrating body. A detailed description of this method is presented. A test for the SDSBPM is carried out through the random vibrating sphere and the random vibrating cuboid. An experiment on the exterior acoustic radiation of a random vibrating sirnulation axial box of the lathe tool is performed in a semi-anechoic chamber. 展开更多
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