Various real-world problems can be attributed to constrained multiobjective optimization (CMOPs). Although there are various solution methods, it is still very challenging automatically select efficient solving strategies for CMOPs. Given this, a process knowledge-guided autonomous evolutionary method proposed. First, the effects of different on population states evaluated in early stage. Then, mapping model and established. Finally, recommends subsequent based current state. This embedded...

This study proposes a new near zero-wear non-contact self-impact seal based on the passive fluid blocking principle and Tesla valve structure, which is characterised by zero-wear, long lifetime, simple structure high stability. Research shows that impact-blocking effect of three-dimensional leakage channel can realise stepwise throttling sealing medium. Furthermore, pressure, number stages spacing significantly affect leakage. Leakage be effectively controlled increasing series reducing...

This study presents a novel phase current reconstruction strategy for switched reluctance machines (SRMs) using two cross‐winding sensors. The currents are reconstructed by solving the linear equations associated with adjacent in different turn‐on regions. effect of sensor offset and power transistor fault on proposed method is analysed. On basis difference at rising edge each drive signal, an identification presented online compensation schemes adopted. For short‐circuit fault,...

A fractional Whitham-Broer-Kaup equation is suggested using He?s derivative to model solitary waves in shallow water porous medium near a dam. modification of the exp-function method, generalized exponential rational function adopted elucidate basic solution properties equation, revealing that value order can be used effectively control wave velocity, height, and morphology. This theoretical result for possible tsunami prevention.

In this article, we investigate three distinct physical structures for shallow water waves models by the improved ansatz method. The method was and can be used to obtain more generalized form topological soliton solutions than original As a result, some new exact of equations are successfully established obtained results exhibited graphically. showed that applied solve other nonlinear differential arising from mathematical physics.

This study uses the undesirable output and super-efficiency slacks-based measure combined with window (WIN-US-SBM) data envelopment analysis (DEA) to evaluate environmental efficiency (EE) in 30 Chinese provinces, from 2005 2016, explores regional differences EE, dynamic spatial Durbin model (DSDM) analyze effects of important factors on convergence EE. It reveals that EE eastern area is higher than central western areas, a positive autocorrelation exists interregional The difference...

It is very challenging to autonomously generate algorithms suitable for constrained multi-objective optimization problems due the diverse performance of existing algorithms. In this paper, we propose a linear regression-based autonomous intelligent method. first extracts typical features problem by focused sampling form feature vector. Then, regression model designed learn relationship between and Finally, trained generates algorithm inputting The proposed method applied six benchmark test...

The operation optimization problem of coal mine integrated energy system (CMIES) is characterized by multiobjective, strong constraints, large scale, and mixed variables. It difficult for existing multiobjective evolutionary algorithms to obtain a set nondominated solutions with good convergence uniform distribution, primarily due the absence suitable constraint-handling techniques. This research proposes multitask framework combining algorithm mathematical programming (MO-EAMP) address this...

This paper extends the Hirota-Satsuma equation in continuum mechanics to its fractional partner fractal porous media shallow water for absorbing wave energy and preventing tsunami. Its derivation is briefly introduced using momentum law He?s derivative. The complex transform adopted elucidate basic solution properties, a modification of exp-function method used solve equation. concludes that kinetic travelling tends be vanished when value order less than one.

Co-pyrolysis behaviors of Zhundong lignite and pine sawdust under isothermal conditions were investigated with a focus on the gas releasing characteristics using micro fluidized bed reactor. The kinetic parameters deduced by measuring time-dependent changes in composition evolved gases from pyrolysis reactions, employing universal integral method. release intensity conversion rate quite different those because difference chemical structure element content. effect blending ratio degree varied...

Abstract With the help of R -matrix approach, we present Toda lattice systems that have extensive applications in statistical physics and quantum physics. By constructing a new discrete integrable formula by -matrix, expanding models their Lax pairs are generated, respectively. following again, obtain corresponding (2+1)-dimensional pairs, as well models. Finally, some conservation laws (1+1)-dimensional generalised system

The power transformer is an essential equipment in the UHV transmission system. High energy discharge resulting from arc faults turret can lead to explosion, posing a serious threat safe and stable operation of At present, there lack experimental research on turret. ignition explosion process remains unclear, which limits improvement explosion-proof performance. To address this issue, test platform fault was constructed. High-current high-deflagration capacity simulation short-circuit tests...

City sprawl and rapid increase of petroleum-fueled passenger vehicles has attracted a lot attention due to concerns resource energy scarcity associated environmental damage. This paper uses the transition theory socio-technical system from multi-level perspective analyze internal mechanism urban transportation’s process find most sustainable measures promote transition. A set evaluation indicators are constructed for transportation sustainability macro landscape, meso regime micro niche....

<p>In this paper, we introduced a new class of weak Hardy spaces, denoted by $ H^{p, \infty}_b $, and provided an analysis their atomic decomposition. As application, established the boundedness Calderón-Zygmund operators (CZOs) from H^p to including cases at critical exponent</p><p><disp-formula> <label/> <tex-math id="FE1"> \begin{document}$ p = \frac{n}{n+\delta}, $\end{document} </tex-math></disp-formula></p><p>where \delta...

Magnetization of activated carbon is an effective approach to separate and recover the spent carbon. Recently, synthesis magnetic has become a research focus in fields environment. The main objective this study list compare advantages disadvantages different methods preparation carbons (MAC). These have been categorized into five: bonding, impregnation, ball milling, chemical coprecipitation one-step synthetic method. use MAC can be applied various aqueous treatment processes, namely remove...

With the terminal value $|\xi|$ admitting some given exponential moment, we put forward and prove several existence uniqueness results for unbounded solutions of quadratic backward stochastic differential equations whose generators may be represented as a uniformly continuous (not necessarily locally Lipschitz continuous) perturbation convex (concave) function with growth. These generalize those posed in \cite{Delbaen 2011} \cite{Fan-Hu-Tang 2020} to extent. The critical case is also...

Two types of matrix Lie algebras are presented. We make use the first loop algebra to obtain a new $(1+1)$ -dimensional integrable discrete hierarchy, which generalizes result given by Gordoa et al., whose reduction is modified KdV system. Then we produce another $(2+1)$ hierarchy with three fields under non-isospectral linear problem. again generalize - and hierarchies positive negative hierarchy. In addition, coupling system presented in paper enlarging such algebras. Next, apply second...