Entre idéologie politique et identité étatique : un gouvernorat de la province umayyade d’Irak, le cas de Ziyād b. Abīh by Massaoud Kouri

“…Abīh – a statesman and a great innovator under the Umayyads, called “king of the East” by some historians – adopts a policy contributing to the rooting of a state culture by remarkably reducing the tribal structures. …”
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Effect of Spalling Shape on Meshing Stiffness and Dynamics Characteristic of Gear by Tu Xuxin, Jian Xiaochun, Wu Shengli

“…The traditional research on spalling gear failure mainly focuses on the change of gear stiffness under different spalling depth and width，it has great limitations. Aiming at this problem，the influence of spalling shape and the spalling shape distribution on gear stiffness and dynamics is studied. …”
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Real-time Optimization Control Strategy of CVT Hybrid Electric Vehicles Considering the Driving Comfort by Li Hangyang, Yang Tongguang, Huang Zhiliang

“…The simulation results show that the proposed strategy not only optimizes the fuel economy, but also greatly improves the objectives of the engine start/stop state, changing rate of CVT speed ratio and electric oil pump energy consumption.…”
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Application scenarios and difficulties in network construction of digital mines in cement industry based on 5G by Huijie ZHAO, Xuezhi ZHANG, Dong XIE

“…The application and development of 5G in the field of cement mining has drawn attention.Cement factories, usually built around limestone mines, in which 5G network shows great value to be used for safe inspection by drones, UAV 3D modeling of mines, unmanned driving and remote control of mining vehicles, of excavators and other mobile services.Firstly, the main business scenarios and network requirements of 5G in cement industry mines was analyzed.Secondly, via the analysis of practical cases and test data of 5G cement mine network deployment, the difficulty of 5G network coverage in mines lies in the poor coverage rate and signal strength of 5G network in limestone mines, which are due to mountain shielding effect mined by hillside terraced fields.Finally, the difficulties of 5G mine network coverage were summarized from the aspects of supporting facilities, planning simulation and environmental dynamic change, and preliminary suggestions were given correspondingly.…”
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An adaptive video stream transmission control method for wireless heterogeneous networks based on A3C by Zhiqiang LUO, Wei WANG, Xiaorong ZHU

“…The adaptive bit rate (ABR) algorithm has become the focus research in video transmission.However,due to the characteristics of 5G wireless heterogeneous networks,such as large fluctuation of channel bandwidth and obvious differences between different networks,the adaptive video stream transmission with multi-terminal cooperation was faced with great challenges.An adaptive video stream transmission control method based on deep reinforcement learning was proposed.First of all,a video stream dynamic programming model was established to jointly optimize the transmission rate and diversion strategy.Since the solution of this optimization problem depended on accurate channel estimation,dynamically changing channel state was difficult to achieve.Therefore,the dynamic programming problem was improved to reinforcement learning task,and the A3C algorithm was used to dynamically determine the video bit rate and diversion strategy.Finally,the simulation was carried out according to the measured network data,and compared with the traditional optimization method,the method proposed better improved the user QoE.…”
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An ultrafast algorithm for ultrafast time-resolved coherent Raman spectroscopy by Francesco Mazza, Dirk van den Bekerom

“…The algorithm demonstrates remarkable accuracy, with an approximation error below 0.1% across all tested probe delays, at both room temperature (296 K) and elevated temperatures (1500 K). This result could greatly expand the application of time-resolved CRS, particularly in plasma research, as well as in broader atmospheric and astrophysical sciences.…”
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EXPERIMENTAL RESEARCH ON STRESS DISTRIBUTION CHARACTERISTICS OF RECTANGULAR VESSEL OF DESALINATION PILOT PLANT by ZHANG Shi

“…The test of stress distribution and characteristics of pressure vessel is of great significance to ensure the safe and reliable operation of pressure vessel. …”
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Analysis on Cage Dynamic Characteristic of Angular Contact Ball Bearing During Deceleration by Wenbing Tu, Haibin He, Leping Liu, Ya Luo

“…The deceleration process generally exists in the feed system of CNC machine, and the speed change of the process has a great influence on the dynamic performance of angular contact ball bearing, which has always been little noticed by scholars at home and abroad. …”
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Analysis of Transient Elastohydrodynamic Lubrication of Asymmetric Polymer Gear by Mingyu Zuo, Youqiang Wang, Guangxiao Jian, Yu Hu, Jun Mo, Yuxin Fang

“…The pressure and film thickness of the lubrication film are greatly affected by rotational velocity and load. …”
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Study on the Water Ecology Protection and Water Environment Remediation Technology, focusing on the heavy metal removal by Zhao Zihan

“…Therefore, water environment remediation is not only of great significance for river ecology, but also of theoretical and practical importance for sustainable human development. …”
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STUDY ON THE AXIAL BEARING CAPACITY OF T AEROSTATIC BEARING by ZHAO Gong, WANG BaoRui, YANG Hong, CUI HaiLong

“…Even a small axial vibration or an axis deflection vibration of the aerostatic bearing of DFC tool can be quite significant for ultra-precision machining. It is of great importance to obtain the accurate axial bearing characteristic（ bearing capacity and thrust stiffness） during its design,parameter optimization,machining and using process. …”
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Parameters Optimization of Multipass Milling Process by an Effective Modified Particle Swarm Optimization Algorithm by Cuiyu Wang, Wenwen Wang, Yiping Gao, Xinyu Li

“…The selection of the optimal metal milling parameters greatly impacts final product quality and production efficiency in modern manufacturing systems. …”
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Progress on Waveguide-Integrated Graphene Optoelectronics by Jiaqi Wang, Zhenzhou Cheng, Xuejin Li

“…The combination of photonic integrated circuits and graphene also enables the development of graphene devices by using silicon photonic technology, which greatly extends the scope of graphene’s application. …”
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Noise suppression in the co-propagation of quantum signals and classical optical signals by Yongmei SUN, Jianing NIU, Yuefeng JI

“…At present,the technologies of device and system required for the fiber-based point-to-point quantum key distribution (QKD) are gradually becoming mature and showing the trend of commercial application.Therefore,how to multiplex quantum signals and classical optical signals in a single fiber to greatly increase the capacity and save fiber resources has been becoming one of the hotspots of academia in recent years.The noise impairments in the co-propagation of quantum signals and classical optical signals over a single fiber were mainly studied.Firstly,the influences of the main noises,four-wave mixing (FWM) and Raman scattering on the quantum channels were analyzed.Next,an unequal-frequency-spacing-based FWM noise suppression algorithm and a wavelength assignment algorithm for joint suppression of FWM and Raman scattering were proposed for different application scenarios with different channel space and transmission distance.Finally,the superiorities of the proposed algorithms were verified through numerical simulations.The research results provide feasible noise suppression schemes for different application scenarios in the future.…”
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Design and Optimization of the Master Manipulator of Minimally Invasive Surgery Robots by Liu Fen, Song Liqiang, Huang Fang, Han Rui, Sang Hongqiang

“…The master manipulator is the only interface for human-robot interaction in robot-assisted minimally invasive surgery, and it is of great importance to improve the flexibility and compactness of the master manipulator. …”
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Strong Women among ‘The Defenseless Christians’ : la place des femmes dans les romans mennonites Sweeter than all the World de Rudy Wiebe et A Complicated Kindness de Miriam Toews... by Claire Omhovère

“…Although their works differ greatly in terms of style and content, both have written novels reflecting on the place of women in Mennonite society and their submission to patriarchal authority. …”
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An overview of V2X communications by Jian FANG, Daquan FENG, Haijun DUAN, Canjian ZHENG, Gongbin QIAN

“…,has been considered as a promising technology to solve the road safety problems.With the advanced information and communication technologies,V2X can greatly improve driving safety,enhance traffic efficiency and comprehensively provide various information services.Thus,it brings unprecedented historical opportunities and challenges to the automobile industry.The state-of-art research on V2X communications was overviewed.Firstly,the background and the characteristics and application scenarios of V2X communication were briefly introduced.Secondly,the development course of V2X communication were outlined.Then,the technical standard of V2X was presented,with emphasis on LTE-V2X and the 5G V2X.Finally,some open problems such as high reliability and low latency,vehicle safety and privacy protection and driving safety of 5G V2X were discussed and concluded.…”
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VECM Model Analysis of Carbon Emissions, GDP, and International Crude Oil Prices by Xiaohua Zou

“…The oil price impacts will have a great influence on GDP and carbon emissions in the short term, but, the in long term, the influence will tend to be gentle.…”
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Development of Fatigue Test Bench for Gearbox Assembly of Crawler Combine Harvester by Zhu Ruiheng, Li Yaoming, Tang Zhong, Xu Lizhang, Ma Zheng

“…The test results show that the test bench can well test the comprehensive working performance and durability of differential steering gearboxes, and has advantages of simple structure, convenient installation, etc. This is of great significance to study the fatigue damage rule of differential steering gearboxes, optimize and improve the mechanical structure of gearboxes and reduce the fault rate of its internal parts in the future.…”
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Staying Optimistic: The Trials and Tribulations of Leibnizian Optimism by Lloyd Strickland

“…The oft-told story of Leibniz’s doctrine of the best world, or optimism, is that it enjoyed a great deal of popularity in the eighteenth century until the massive earthquake that struck Lisbon on 1 November 1755 destroyed its support. …”
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