Coded aperture snapshot spectral imaging (CASSI) system encodes the 3D hyperspectral image (HSI) within a single 2D compressive and then reconstructs underlying HSI by employing an inverse optimization algorithm, which equips with distinct advantage of but usually results in low reconstruction accuracy. To improve accuracy, existing methods attempt to design either alternative coded apertures or advanced methods, cannot connect these two aspects via unified framework, limits accuracy...

In this letter, a finite-time convergent analysis of continuous action iterated dilemma (CAID) is proposed. traditional evolutionary game theory, the strategy player binary (cooperation or defection), which limits number strategies can choose from. Meanwhile, there are no effective methods to analyze convergence and its time in previous works. To solve these problems, we make several innovations letter. Firstly, CAID proposed by enriching players' as continuous, means an intermediate state...

This article presents a bearing-based formation control method for autonomous aerial vehicle (AAV) swarms, allowing users to specify both convergence time and precision in advance. Unlike traditional distance-based methods, which rely on intricate distance measurements, our approach simplifies constraints using bearing information, reducing hardware sensing requirements. It also eliminates the need update commands each AAV, as reconfiguration can be achieved solely by adjusting motion...

Based on the differential principle of thread transmission, an analytical model considering helical directions between screw and roller threads in planetary mechanism (PRSM) is presented this work. The critical for design PRSM with a smaller lead bigger pitch to realize higher transmission accuracy. kinematic employed analyze different directions. In order investigate differences directions, numerical developed by using software Adams validate solutions calculated model. results indicate,...

This article studies a novel fixed-time consensus tracking strategy for multimotor system (MMS) with input saturation, suitable most practical applications requiring stringent convergence time but limited control capability. First, modified stable theorem is proposed to guarantee that the actual can reach certain precision in fixed time, regardless of initial states system. Then, an saturation compensation also constructed compensate ensure fast controller. Next, we propose new distributed...

In this article, 3D or three-dimensional finite element analysis is used to simulate and evaluate the load distribution characteristics of a planetary roller screw mechanism under thermo-mechanical coupling. The model takes into account installation modes mechanism, which verified by comparison with theoretical models for certain magnitude in four modes. addition, effects mode, magnitude, temperature condition on are also systematically analyzed. numerical results reveal phenomenon threads...

In this article, an expert system-based multiagent deep deterministic policy gradient (ESB-MADDPG) is proposed to realize the decision making for swarm robots. Multiagent (MADDPG) a reinforcement learning algorithm utilize centralized critic within actor–critic framework, which can reduce variance. However, it difficult apply traditional MADDPG robots directly as time consuming during path planning, rendering necessary propose faster method gather trajectories. Besides, trajectories obtained...

In gear transmission, the continuous meshing of teeth will lead to an increase in their temperature, which have a certain impact on working performance tooth surface. order explore failure-bearing capacity gears under dry-running conditions, temperature effects were considered existing methods for determining surface failure, making it more suitable high-temperature conditions caused by lack lubrication. The failure situation within 35 min after losing lubrication was analyzed. results...

The article introduces a general solution for dynamic analysis of planar multibody system with revolute lubricated clearance joint. An improved transition force model is established, which includes dry contact and hydrodynamic forces, accounts not only squeeze-film effects but also wedge-film effects, applicable to both long short bearings. Then, the behaviors are presented based on this slider-crank mechanism Different test conditions considered in order present parametric study about size,...

This paper proposes a polynomial approximation approach for the estimation of stochastic response random mass structure subjected to an evolutionary excitation. A bounded, monopeak, and symmetrically distributed probability density function, called λ-PDF, together with Gegenbauer approximation, is introduced deal dynamic problems structures. The λ-PDF model used describe parameters in engineering And then method reduce structures into its deterministic equivalent one. numerical example shows...

The paper proposes a robust guidance law with high-order sliding mode variable structure to handle the problems of poor convergence and control chattering considering limited information when target is suffering high maneuver interception. A surface illustrated finite time convergence. (HOSMGL) derived from Super-twisting algorithms. state observer second-order estimates acceleration in following step. proposed method performs experiments, which evaluates effectiveness that can be used...

Abstract In the past few years, research on advanced ultrafast photonic devices has maintained great interest throughout laser community. As a semiconductor material with excellent nonlinear saturation absorption characteristics, GaAs been used in solid-state and fiber lasers as mode-locker. However, pulse widths that have reported searchable published literature are all longer shortest is also tens of picoseconds. Femtosecond widths, desired for variety applications, not yet GaAs-based...

The QCr0.8 alloy used in the thrust chamber liner wall of reusable liquid rocket engine is subjected to high-temperature fatigue and creep loading. This work investigates effect fatigue-creep interaction (FCI) on life alloy. According experimental results, shows accelerated cyclic softening decelerated stress relaxation behavior under FCI circumstances, which are related deformation growth amplitude. damage evolution mechanism revealed by results energy dispersive spectroscopy (EDS) scanning...

Spectral fault localization is an automatic fault-localization technique to expedite debugging, which uses risk evaluation formula rank the of existence in each program entity after collecting testing information. To assess potential usefulness a test suite and improves accuracy for spectral localization, methods assessing optimizing are proposed this paper, which. Firstly, Average Ranking Cost quality two kinds constrains defined; assessment method based on these definitions given....

This paper investigates the trajectory tracking control problem of omnidirectional mobile robot (OMR) with unknown parameters. A novel concurrent learning-based adaptive strategy is proposed. Different from currently available schemes, parameter estimation error in this can exponentially converge to zero under a mild rank condition, by resorting learning technique. implies that identification parameters achieved. Moreover, also tend exponentially. Unlike some results asymptotical convergence...

Purpose The effectiveness of interorganizational governance is one the most significant concerns firms involved in supply chain management. Previous studies have extensively examined various strategies. However, dynamic and implementation details receive little attention, which leads to defects literature. This study tries explore this issue. Design/methodology/approach Based on process cybernetic view, conceptualized four processes their respective critical activities capture governance....

Content adaptation is a challenging work due to the dynamism and heterogeneity of pervasive computing environments. Some researchers address this issue by organizing services into customized applications dynamically. However, maintenance dependencies between services, these systems become more complicated with growing system scale. Programming for also error-prone. This paper introduces our in field, UbiCon, an information streams oriented content system. By abstracting generic CONTENT...

The anonymity and unsupervision of mobile application crowdsourced testing, makes the tester easy to slacken or cheat on test tasks, resulting in a drop quality testing. To solve problem, this paper proposes method for assessing reputation testers based fuzzy mathematics. This closely integrates testing features. By introducing evaluation mechanism, building assessment model studying calculation update it achieves reasonable can effectively screen out high testers, thus ensuring