|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | CHARACTERISTICS OF ELECTROMECHANICAL COUPLING SELF-SYNCHRONIZATION OF A MULTI-MOTOR VIBRATION TRANSMISSION SYSTEM显示文摘Multi-motor vibratory transmission systems have been wide used in large vibratory machines, and four-motor linear vibratory machine is one typical equipment of them. Under non-forcible synchronization condition zero-phase synchronization of the machine is non-stationary and it-phase synchronization is stable. Under half-forcible synchronization condition in which only one motor is controlled being synchronous to another, only lag synchronization near zero-phase synchronization can be realized. Both of the characteristics have never been revealed with classical theory quantitatively. The problem is solved by means of establishing an electromechanical coupling mathematical model of the system and numerical analysis of the starting processes. | Xiong Wanli,Duan Zhishan (School of Mechanical and Electrical Engineering, Xi’ an University of Architecture and Technology) Wen Bangchun (Northeastern University) | 2001 | Chinese Journal of Mechanical Engineering2001，14，3： | 8 |
| 2 | Topology identifi-cation of the complex networks with non-delayed and de-layed coupling显示文摘 | Guo Wanli Chen Shihua Wen Sun | 2009 | Physics Letters A2009，373，： | 1 |
| 3 | Formulations of Some Bit Switching Functions in DES显示文摘In the data encryption standard (DES) algorithm, there exist several bit-switching functions, including permutations, expansion, and permuted choices. They are generally presented in the form of matrixes and realized by using table look-up technique in the implementation of the cryptosystem. This paper presents explicit formulas for the initial permutation IP, its inverse IP-1 , the expansion function E, and the permuted choice PC_1. It also gives the program realizations of these functions in C++ applying these formulas. With the advantage of the omission of the storage space for these matrixes and the tedious inputs of tables in the implementations of DES, our experimental results shows that the explicit formulas are useful in some situations, such as wireless sensor networks where the memory capacity is limited, especially when the size of file for encrypting is not too large, preferably smaller than 256KB. | YOU Lin YANG Yilin WEN Wanli | 2013 | Wuhan University Journal of Natural Sciences2013，18，5： | 1 |
| 4 | Legal Ex- pertise on Corporate Audit Committees and Financial Reporting Quality显示文摘 | Jayanthi Krishnan Yuan Wen Wanli Zhao | 2011 | The Accounting Review2011，，6： | 1 |
| 5 | Topology identifi- cation of the complex networks with non-delayed and de- layed coupling显示文摘 | Guo Wanli Chen Shihua Sun Wen | 2009 | Physics Letters A2009，373，： | 1 |
| 6 | Adaptive global synchronization of a general complex dynamical network with non-delayed and delayed coupling显示文摘 | Sun Wen Guo Wanli Chen Shihua | 2008 | Physics Letters A2008，，372： | 1 |
| 7 | Digital twins in smart farming:An autoware-based simulator for autonomous agricultural vehicles显示文摘Digital twins can improve the level of control over physical entities and help manage complex systems by integrating a range of technologies.The autonomous agricultural machine has shown revolutionary effects on labor reduction and utilization rate in field works.Autonomous vehicles in precision agriculture have the potential to improve competitiveness compared to current crop production methods and have become a research hotspot.However,the development time and resources required in experiments have limited the research in this area.Simulation tools in unmanned farming that are required to enable more efficient,reliable,and safe autonomy are increasingly demanding.Inspired by the recent development of an open-source virtual simulation platform,this study proposed an autoware-based simulator to evaluate the performance of agricultural machine guidance based on digital twins.Oblique photogrammetry using drones is used to construct threedimensional maps of fields at the same scale as reality.A communication format suitable for agricultural machines was developed for data input and output,along with an inter-node communication methodology.The conversion,publishing,and maintenance of multiple coordinate systems were completed based on ROS(Robot Operating System).Coverage path planning was performed using hybrid curves based on Bézier curves,and it was tested in both a simulation environment and actual fields with the aid of Pure Pursuit algorithms and PID controllers. | Xin Zhao Wanli Wang Long Wen Zhibo Chen Sixian Wu Kun Zhou Mengyao Sun Lanjun Xu Bingbing Hu Caicong Wu | 2023 | International Journal of Agricultural and Biological Engineering2023，16，4： | 0 |
| 8 | Linguistic Steganalysis via Fusing Multi-Granularity Attentional Text Features显示文摘Deep learning based language models have improved generation-based linguistic steganography,posing a huge challenge for linguistic steganalysis.The existing neural-network-based linguistic steganalysis methods are incompetent to deal with complicated text because they only extract single-granularity features such as global or local text features.To fuse multi-granularity text features,we present a novel linguistic steganalysis method based on attentional bidirectional long-shortterm-memory(BiLSTM) and short-cut dense convolutional neural network(CNN).The BiLSTM equipped with the scaled dot-product attention mechanism is used to capture the long dependency representations of the input sentence.The CNN with the short-cut and dense connection is exploited to extract sufficient local semantic features from the word embedding matrix.We connect two structures in parallel,concatenate the long dependency representations and the local semantic features,and classify the stego and cover texts.The results of comparative experiments demonstrate that the proposed method is superior to the state-of-the-art linguistic steganalysis. | WEN Juan DENG Yaqian PENG Wanli XUE Yiming | 2023 | Chinese Journal of Electronics2023，32，1： | 0 |
| 9 | Information freshness optimization of multiple status update streams in Internet of things:Generation rate control and service rate reservation显示文摘The Internet of things(IoT)has become a key infrastructure providing up-to-date and fresh information for policy analysis and decision-making of upper-layer applications.However,there are limited sensing and communication resources in IoT devices,which significantly affects the timeliness and freshness of the updated status.This work proposes two schemes,namely,the generation rate control and service rate reservation schemes,to improve the overall information freshness of multiple status update streams at the receiver.Specifically,using the recently proposed Age of Information(AoI)as the metric for evaluating information freshness,we characterized the overall information freshness,i.e.,the overall average AoI at the receiver for both schemes,by considering the urgency difference of status update and streams.Both schemes for status updates and streams,respectively,were formulated as two optimization problems.We proved that both problems are convex and the optimal generation and service rates for different streams are found by the standard convex optimization algorithm.Moreover,we proposed both approximate optimal generation and approximate optimal service rate for fast deployment in heavy and light load cases.Numerical results verify the theoretical findings and accuracy of the proposed approximate solutions,guiding the design and deployment of IoT. | Tianci Zhang Junjie Zhou Zhengchuan Chen Zhong Tian Wanli Wen Yunjian Jia | 2023 | Digital Communications and Networks2023，9，4： | 0 |
| 10 | Simvastatin nanoliposome induces myocardial and hepatic toxicities due to its absorption enhancement in mice显示文摘Nanoliposome is a useful dosage form to increase solubility and absorption of simvastatin(SMV), and consequently improves its therapeutic effects. However, in vivo toxicity of SMV could also be elevated accompanied by the absorption enhancement, which is a decisive factor for the clinical application of SMV nanoliposome(SMV-Lipo), but has not been studied systematically and reported so far. In this study, organ toxicity of SMV-Lipo was evaluated in mice in the presence and absence of isoproterenol and compared to those of free SMV. Results demonstrated that compared to free SMV, the SMV-Lipo administrated at an equal dose of 25 mg/kg/d led to severe myocardiotoxicity, hepatotoxicity at baseline and more pronounced liver injury with elevation of alanine aminotransferase. In addition, muscular adverse effect was also observed in SMV-Lipo treated group but not in SMV group. Pharmacokinetic studies revealed that compared to free SMV, the SMV-Lipo administration significantly improved the plasma SMV concentration, and the oral bioavailability was 6.5 times of free SMV. Notably, when the dosage of free SMV increased to 50 mg/kg/d, yielding the comparable plasma concentration as SMV-Lipo given at 25 mg/kg/d, the myocardiotoxicity was observed in free SMV treated mice as well, which further confirmed that the enhanced absorption of SMV by the nanoliposomal formulation resulted in more severe myocardiotoxicity than the equal dose of free SMV. | Nuerbiye Tuerdi Gulinigaer Anwaier Xing Zhang Shu Liu Wanli Shen Wen Liu Qiang Shen Rong Qi | 2020 | Asian Journal of Pharmaceutical Sciences2020，15，1： | 0 |
| 11 | Joint Optimization of Task Caching,Computation Offloading and Resource Allocation for Mobile Edge Computing显示文摘Applications with sensitive delay and sizeable data volumes,such as interactive gaming and augmented reality,have become popular in recent years.These applications pose a huge challenge for mobile users with limited resources.Computation offloading is a mainstream technique to reduce execution delay and save energy for mobile users.However,computation offloading requires communication between mobile users and mobile edge computing(MEC) servers.Such a mechanism would difficultly meet users’ demand in some data-hungry and computation-intensive applications because the energy consumption and delay caused by transmissions are considerable expenses for users.Caching task data can effectively reduce the data transmissions when users offload their tasks to the MEC server.The limited caching space at the MEC server calls for judiciously decide which tasks should be cached.Motivated by this,we consider the joint optimization of computation offloading and task caching in a cellular network.In particular,it allows users to proactively cache or offload their tasks at the MEC server.The objective of this paper is to minimize the system cost,which is defined as the weighted sum of task execution delay and energy consumption for all users.Aiming at establishing optimal performance bound for the system design,we formulate an optimization problem by jointly optimizing the task caching,computation offloading,and resource allocation.The problem is a challenging mixed-integer non-linear programming problem and is NP-hard in general.To solve it efficiently,by using convex optimization,Karmarkar ’s algorithm and the proposed fast search algorithm,we obtain an optimal solution of the formulated problem with manageable computational complexity.Extensive simulation results show that in comparison to some representative benchmark methods,the proposed solution can effectively reduce the system cost. | Zhixiong Chen Zhengchuan Chen Zhi Ren Liang Liang Wanli Wen Yunjian Jia | 2022 | China Communications2022，19，12： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员