Analysis of Influencing Factor on Tapered Roller Bearing Vibration based on Poor Information by Xia Xintao, Liu Bin, Jiang Songjun, Xu Liang, Zhang Jixiang

“…The experimental results show that the main factors affecting the bearing vibration under the measurement conditions are the roller base runout,the roller straightness,the roller diameter variation,the inner raceway roundness and the inner raceway verticality.…”
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Self-attention mechanism-based CSI eigenvector feedback for massive MIMO by Bei YANG, Xin LIANG, Hang YIN, Zheng JIANG, Xiaoming SHE

“…Massive multiple-input multiple-output (MIMO) system can provide satisfying gain of spectrum efficiency for 5G and future wireless communication systems.In frequency-division duplex (FDD) mode, downlink channel state information (CSI) needs to be accurately fed back to the base station side to obtain this gain.To improve the feedback accuracy of downlink CSI eigenvector, a self-attention mechanism-based CSI feedback method named SA-CsiNet was proposed.SA-CsiNet respectively deployed self-attention modules at the encoder and the decoder to achieve feature extraction and reconstruction of CSI.Experimental results show that compared with codebook-based and conventional deep learning-based CSI feedback approaches, SA-CsiNet provides higher reconstruction accuracy of CSI.…”
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« Writing into a Void » : Charles Bukowski and the Little Magazines by Abel Debritto

“…For Bukowski, the little magazines were the ideal outlet for his prolific output, and their editors, who saw him as a spiritual leader, championed his work so vehemently that he eventually became the most published author of the 1960s––his indisputable rise to fame in the alternative literary scene is displayed in the graphs provided. …”
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Cronica muzicală și anii de ucenicie ai lui Camil Petrescu by Petruș Costea

“…Les vingt chroniques musicales, plutôt un répertoire de la vie musicale en Banat, dévoile un jeune journaliste dans les textes duquel on peut reconnaître les naïvetés de l’époque mais en même temps un sens critique très personnel.…”
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Passivity and Synchronization of Multiple Multi-Delayed Neural Networks via Impulsive Control by Yong Wang, Zhichun Yang, Tonglai Liu, Hong-An Tang

“…To ensure the passivity, input strict passivity, and output strict passivity in MMDNNs, a suitable impulsive controller is designed. …”
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Les effets de l’émigration paysanne dans les Andes équatoriennes : une lecture photographique by Nasser Rebaï

“…Dans les Andes équatoriennes, les effets de l’émigration paysanne sont partout visibles. Si dans la province de l’Azuay, on assiste à la diminution des superficies cultivées et à la réorganisation des tâches agricoles, on observe par ailleurs l’émergence d’une agriculture commerciale orientée vers le marché urbain régional. …”
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Dynamics Analysis and Design of a type of Artillery Azimuth Angle Measuring Device by Wang Ju, Wang Dongrong, Tong Qingyu, Yao Zhihui

“…Through the three- dimensional modeling software UG NX,the three- dimensional model of azimuth angle measuring device is built,and the data interaction with mechanical dynamics simulation software ADAMS is realized,the virtual prototype model is established in ADAMS and the dynamics analysis of virtual model is completed,the speed of input,output shaft of azimuth angle measuring device and the time domain regularity curve of gear meshing force are obtained,the theoretical reference for further studying the characteristic of artillery azimuth angle measuring device gear transmission system is provided.…”
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Power allocation under per-antenna power constraints in multiuser MIMO systems by Sheng-qian HAN, Chen-yang YANG

“…A low-complexity power allocation algorithm was investigated under per-antenna power constraints(PAPC)in multiuser multiple-input multiple-output (MIMO) systems.It was shown that the optimal power allocation subject to PAPC,aimed at maximizing the sum rate of multiple users with zero forcing (ZF) precoders,had the structure of water-filling with multiple water-levels.Based on this result,the equivalence between PAPC and weighted sum power constraints was proved and a low-complexity suboptimal power allocation method was then proposed.Simulation results show that the proposed method outperforms the existing equal power allocation method and the heuristic method,and it can efficiently reduce the computational complexity with a negligible performance loss compared with the optimal power allocation method.…”
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La réception du XXe Congrès dans la région de Gorki by Jean-Paul Depretto

“…Le retentissement à court terme du XXe Congrès a été réel, mais limité ; quand le thème du « culte de la personnalité » était évoqué dans les réunions, il était surtout lu à partir de préoccupations locales : sa critique servait à mettre en cause tous ceux qui détenaient quelque pouvoir : supérieurs hiérarchiques dans l’entreprise ou cadres du parti.…”
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Former les maîtres d’ouvrage de la transition écologique et climatique by Emmanuelle Bonneau, Catherine André

“…Taking into account the transformation of the objectives and conditions of public action in urban planning and development due to the current injunction to engage in the ecological transition, this article sets out to identify the reciprocal contributions of landscape architecture and urban planning methods in support of this transition. The output from the pedagogical workshops of the UPEPT master’s programme supports and illustrates this demonstration.…”
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Joint time and beam domain non-orthogonal multiple access by Zhaoyang ZHANG, Jiajia WU, Jue WANG, Chu ZHOU

“…In order to improve the system’s ability to accommodate connected devices, a joint time and beam domain non-orthogonal multiple access (NOMA) scheme was proposed, which was suitable for millimeter wave massive multiple-input multiple-output (MIMO) systems.The correlation and difference of the users’ channel were utilized to realize beam-domain NOMA, and sparse spreading technology was utilized to realize time-domain NOMA.With the optimization goal of improving the communication reliability of the system, optimization problem of the joint domain sparse access matrix design was constructed and solved.Finally, the access matrix was reconstructed based on the channel quality of the joint domain, and the interference cancellation operation was added to the message passing algorithm (MPA), which reduced the decoding complexity and improves the communication reliability.…”
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OPTIMIZATION OF THE DROPPING PERCUSIVE FORCE OF THE MATERIAL IN THE ROLLER OF BALL GRINDING MILL by WANG ShiJiang, ZOU RenPing

“…The theoretical analyses of the ball grinding mill are very necessary for its strength designs and the estimation of its output,but there are a lot of difficulties in the mathematical modeling and theoretical analyses because of the many and complex influence factors. …”
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Classical and Impulse Stochastic Control on the Optimization of Dividends with Residual Capital at Bankruptcy by Peimin Chen, Bo Li

“…In this paper, we consider the optimization problem of dividends for the terminal bankruptcy model, in which some money would be returned to shareholders at the state of terminal bankruptcy, while accounting for the tax rate and transaction cost for dividend payout. Maximization of both expected total discounted dividends before bankruptcy and expected discounted returned money at the state of terminal bankruptcy becomes a mixed classical-impulse stochastic control problem. …”
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Analysis of DoS attacks on Docker inter-component stdio copy by Tianyu ZHOU, Wenbo SHEN, Nanzi YANG, Jinku LI, Chenggang QIN, Wang YU

“…In recent years,Docker has been widely deployed due to its flexibility and high scalability.However,its modular design leads to the DoS attacks on inter-component communication.A new DoS attack that outputs to stdout,causing high CPU usages among different Docker components.Analysis shows that the stdout output triggers the goroutines of Docker components.To find all goroutines setup paths,using the static analysis method to analyze the Docker components systematically was proposed.A static analysis framework was designed and implemented,and evaluated on Docker source code.The results show that static analysis framework finds 34 paths successfully,while 22 of them are confirmed by runtime verification.…”
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Metric and classification model for privacy data based on Shannon information entropy and BP neural network by Yihan YU, Yu FU, Xiaoping WU

“…The trained BP neural network was used to output the classification result of privacy data without pre-determining the metric weight. …”
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BP neural network based Doppler frequency offset estimation method for 5G high-speed mobile system by Zenghao WANG, Lihua YANG, Lu CHENG, Jie ZHANG, Yan LIANG

“…A BP neural network based Doppler frequency offset estimation method was proposed.The proposed method was mainly divided into two stages:offline training and online estimation.Firstly,the training samples were constructed by using random Doppler frequency offset and received pilot signals,and then the training samples were used to train the BP neural network offline,which could complete the mapping relationship between input and output data.Then,based on the trained network,the received pilot signal was used to estimate the Doppler frequency offset online.Simulation results show that the performance of the proposed method is far superior to the existing method,and it has low computational complexity.…”
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CELLULAR AUTOMATA SIMULATION OF THE DISTRIBUTION OF SHRINKAGE DEFECTS IN CASTING «BEARING HOUSINGS» WITH PROFITS AT DIFFERENT METAL LEADING by A. N. Chichko, S. G. Lihouzov, O. A. Sachek, Y. V. Jackiewicz, V. F. Sobolev, T. V. Matyushinets, O. I. Chichko

“…It is established that the casting is completely filled with metal, without forming runout, for the considered options for the metal flow. …”
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Repairment of Planetary Carrier of Roller Press Planetary Reducer by Liu Qiang, Tan Yinglin, Zhang Hao, Li Simin

“…The disassembly of the planetary carrier of a roller press planetary reducer is easy to cause damage to the hollow output shaft. Aiming at the repair of the damaged planetary carrier,a bilateral board planetary carrier is brought up. …”
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Adaptive Neural Control Approach for Switched Nonlinear Discrete-Time Systems With Actuator Faults and Input Dead Zone by Ymnah Alruwaily, Mohamed Kharrat

“…Under arbitrary switching signals, the suggested controller and adaptive laws ensure that all signals remain bounded and the system output tracks the reference signal with a small bounded tracking error. …”
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Transmission scheme and capacity analysis of onboard multi-antenna system in high-speed train by Wan-tuan LUO, Xu-ming FANG, Meng CHENG, Xiang-juan ZHOU

“…Based on the three-dimensional modeling of line-of-sight SIMO (single-input multiple-output) channel for high-speed railway, which adopts uniform linear receiving array, the channel capacity of N -group receiving arrays was analyzed. …”
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