Purpose This study aims to develop a machining path posture optimization algorithm for robotic wood processing systems, integrating global smoothing metrics and local constraint metrics, refines the overall processes of pose optimization, generation interpolation, thereby enhancing efficiency. Design/methodology/approach begins by analyzing redundancy in systems provides parametric description based on five-axis linear paths from computer-aided manufacture (CAD/CAM). Global performance are...

This paper presents a novel nonlinear control approach for medium density fiberboard continuous hot pressing hydraulic system. Uncertainties, disturbances, and input saturation are explicitly taken into account. The proposed controller incorporates smooth function by using hyperbolic tangent to substitute the nonlinearity in Moreover, backstepping-like slab thickness tracking is developed third-order cascade system within two steps. Taking advantages of radial basis neural network (RBFNN)...

Abiotic stress is one of the environmental conditions that effects plant survival and growth. As a vital model papermaking raw material, it very important to identify differentially expressed genes Populus trichocarpa Torr. & A.Gray ex Hook under abiotic in order cultivate stress-tolerant plants. We analyzed whole transcription spectrum potential 54 groups roots stem-xylem sequencing sample data cold, drought, heat salt for different durations. Gene Ontology (GO) enrichment analysis...

A compound control strategy is investigated for Medium Density Fiberboard (MDF) continuous hot pressing electrohydraulic servo system (EHSS) with uncertainties and input saturation. Firstly, a hyperbolic tangent function applied to approximate saturation nonlinearity in the system. And thus mathematical model differentiable. Subsequently, slab thickness tracking controller constructed by using dynamic surface (DSC) method, which introduces first-order low-pass filters calculate derivatives...

In this paper, a prescribed performance control scheme is proposed for medium density fibreboard (MDF) continuous hot pressing hydraulic system. The issues regarding transient and steady state behaviours are explicitly considered in the design analysis. Firstly, special error transformation introduced into first subsystem to transform original system with constraints an equivalent 'output constrained' one achieve guarantees. Subsequently, based on appropriately designed barrier Lyapunov...

with the analysis of wireless sensor network clustering route mechanism, Distributed Energy-surplus and Centralism Distance protocol (DECDC) has been proposed for dynamic optimization problem routing technology cluster head choice inter-cluster route, in witch a node, according to its residual energy position distance from sink independently makes decision compete becoming head. Moreover this proposes communication method, which based on minimum way tree, causing carry gathering by tree....

Interactive is a focus of the multi-agent system study. KQML language most widely agent interactive language. This article bases on analysis structure, including communication protocol defined in language, content, message routers, exchange facility and so on, aims at problem distributed control multi-kiln wood drying environment to applicably expand by contract network mode, order achieve cooperative between multi-wood kiln, improves openness universality. Through analyze three-agent test,...

As the error in process of automatically mixing by weighing control is consisted glue and dosing precise system Micro-D based on load cells parallel, has characteristic batching weight loading for each chemical components flow, so this paper makes an particular analysis with static error, dynamic delay puts forward several methods such as subtracting eliminating affixed weight, beforehand closure electro-valves using predictive compensation, that average which measured measurement less than...

Contourlet transformation has good characteristic in dealing with details high frequency of the image information, and better directionality sparsity. An improved algorithm using Structural similarity (SSIM) been proposed to determine fusion rules adaptively. The calculates structural two images be fused, takes average SSIM as a threshold value, selects adaptively high-frequency sub-band method low-frequency retain more profile information. investigations show that based on richer sharper...

A smoothing neural network (SNN) can be proposed for solving a kind of constrained convex problems, which has wide applications in image restoration. The optimization model is nonsmooth problem with constraint defined by class affine equalities. Thanks to the methods, SNN modeled differential equation instead inclusion and it implemented easily. When objective function level bounded feasible region, solution initial point set global existent unique, where uniqueness based on special...

To reduce the power consumption of mobile sink node, a new state PER_NOTIFICATION is added to standard Android system. Therefore, USB devices can be or removed from system by sys file interface according users' specific demand, realising more fine-grained management. In addition, an improved CPU load prediction algorithm SAWDLP proposed replace default one in on-demand governor. With SAWDLP, accurate done and then appropriate frequency chosen consumption. Experimental results show that works...

We propose a one-layer neural network for solving class of constrained optimization problems, which is brought forward from the MDF continuous hot-pressing process. The objective function problem sum nonsmooth convex and smooth nonconvex pseudoconvex function, feasible set consists two parts, one closed subset of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...

The problem of multi-objective H2/H/sub /spl infin// optimal controller design is reviewed. A necessary condition given to consummate the algorithm for existence a solution generalized non-symmetric and rectangular Riccatti equation. In view observer-based structure form involving Youla parameter, can be transformed into tractable practical LMI formulation control through linearizing change variables. order reduce conservatism system, independent Lyapunov functions are used each synthesis...

According to NARX dynamic network, a learning algorithm of improved RTRL is presented in this paper and applied adaptive inverse control system, which consists two neural networks: one identify the controlled plant; other approximates transfer function plant. The online training method using also described detail. Practical simulation results show NARX-based identifier controller are feasible given efficient application (AIC).

In WSNs, energy conservation is the primary goal, while throughput and fault tolerance are other important factor. According to wireless sensor network nodes consumption, hardware failure communication factors, in this paper, an evolving method based on complex theory of small-world Kleinberg model proposed, which uses long links short partial view information build inter-cluster topology. Theoretical analysis simulations show that lifetime longer 27% than DECDC WSN topology when node...

Nowadays, the combination of millimeter wave (mmWave) technology and device-to-device (D2D) communication becomes more widespread. Due to variety devices, antenna arrays are always heterogeneous system interference is complicated. In this paper, we first analyze existing pattern find out effects different models in a device-intensive scenario. Then, construct an graph design related properties describe state system. order improve throughput considering heterogeneity, propose timeslot...