In this paper, multiagent systems and genetic algorithms are integrated to form a new algorithm, algorithm (MAGA), for solving the global numerical optimization problem. An agent in MAGA represents candidate solution problem hand. All agents live latticelike environment, with each fixed on lattice-point. order increase energies, they compete or cooperate their neighbors, can also use knowledge. Making of these agent-agent interactions, realizes purpose minimizing objective function value....

Abstract A large number of empirical studies have shown that regime switching is an important characteristic temperature processes. Thus, this work develops efficient finite difference scheme with one-sided to price weather derivatives the partial differential equations (PDEs) regime-switching models. For management purposes, initial model framework then proposed manage portfolios incorporating derivatives. This also performs statistical analysis on dataset from Toronto, Canada and...

Rigid polyurethane foams (RPUF) are mainly used as a buffer energy absorption material for the protective structure in buildings, ground vehicles, and aircraft. Its mechanical performance is vital evaluation basis its use design. Based on uniaxial compression experimental tests, The stress-strain curve of behavior RPUF at different strain rates temperatures were obtained. law mechanism rate temperature quantitatively analyzed based results. It was found that properties such yield stress,...

Based on flexible polyurethane foam (FPUF), which is reversible after compression, and expanded polystyrene (EPS), has a high cushioning energy absorption capacity, the parallel series combinations of FPUF EPS are provided. According to experimental data uniaxial compression large deformation, mechanical properties effectiveness FPUF-EPS combination materials with different structural scale parameters were investigated by theory analysis finite element simulation. The response influencing...

In developing and emerging countries, rapid urbanization at an unprecedented pace degradation of ecosystem services alarming rate have caused many regions, especially those in environmentally sensitive areas (ESAs), to encounter the “regional development dilemma” (RDD), which regions can hardly divert their current pattern achieve a transition sustainability. The main research focus this study is introduce—by means case study—a payments for service (PES) scheme as policy instrument that...

Endowed with distinctive natural ecosystems and abundant biodiversity, regional environmental governance in developing countries, especially the environmentally sensitive areas (ESAs), is facing daunting task to ultimately divert their development mode towards sustainable fashion through transition. However, given less-developed status particular expressed by under-developed economies, unsound political regimes, low capacity, such seemingly insurmountable. In order approach incompatibility...

Flattening of the interfaces is necessary in computing wave propagation along stratified waveguides large range step sizes while using marching methods. When supposition that there exists one horizontal straight line two adjacent does not hold, previously suggested local orthogonal transform method with an analytical formulation feasible. This paper presents a numerical coordinate and equation to perform transforms numerically for without satisfying supposition. The boundary value problem...

This article investigates CSR issues publicized by websites, annual reports, and social responsibility reports companies in mainland China from the perspective of corporate communication. The empirical study is surrounded about motives CSR, content applications stakeholders. Empirical tests are distinguished motives, characteristics, stakeholder for Eastern, Central, Western regions. Our research results indicate that although implementation communication have made great progress compared...

Abstract The relations between stability and accuracy of the operator marching method (OMM) are usually conflicting in waveguides with strong range dependence. To explain this phenomenon, study intends to present an error estimate for OMM dependent waveguides. We utilize “approximation level” measure truncation a various step sizes. Then, is developed analyze performances OMM. Through analysis, we verify following features OMM: (i) it valid apply slowly varying very large sizes; (ii) may...

We are concerned with a three‐dimensional system of rational difference equations nonzero initial values. present solutions the in an explicit way and obtain asymptotical behavior solutions.

Through assuming that nonlinear superposition principles (NLSPs) are embedded in a Lie group, class of 3rd‐order PDEs is derived from general determining equation determine the invariant group. The corresponding NLSPs and transformation to linearize PDE found, hence governing proved C ‐integrable. In end, some applications explained, which shows result has very subtle relations with linearization partial differential equation.

1. An X., Shi D., 2022, innovation active set strategy reliability optimization method for cushioning design based on dynamic stress-strain curve, Packaging Technology and Science, 35, 2, 153-162. CrossRef Google Scholar

A clustering based two phase PSO strategy CTPPSO was developed to solve multiobjective optimization problems (MOPs) in this paper. The basic idea is that the initial population constructed according distribution of particles. sub-populations which represent groups particles specialized on niches were dynamically identified using density-based algorithms. particle evolution bounded each niche. No information exchanged among different niches, and then diversity kept. Benchmark function MOPs...

It is difficult to manage resources allocation and pollution in a multi-regional country with mutually competitive relations. This work therefore intends propose an optimal control model for the management problem. Through introducing union utility function interactions, we construct integrated economy, resource, environment macroeconomic according social practices some regions. Numerical procedures are proposed search energy policy antipollution strategy of model. As shown, fair tradeoff...

The inverse fundamental operator marching method (IFOMM) is suggested to solve Cauchy problems associated with the Helmholtz equation in stratified waveguides. It observed that for large‐scale computationally efficient, highly accurate, and stable respect noise data propagating part of a starting field. In further, application scope IFOMM discussed through providing an error estimation method. indicates particularly suits compute wave propagation long‐range slowly varying