Natural rubber is mainly dependent on import in China, its domestic market price influenced by the Rubber Customs Declaration Price (NRCDP). Considering fluctuating properties of NRCDP, a method NRCDP based Wavelet and optimized Back Propagation (BP) neural network Group using Genetic Algorithm (W-GA-BPG) proposed. First, an dataset established original (CDP) collected Qingdao Customs, which co...

Optical turbulence strongly affects different types of optoelectronic and adaptive optics systems. Systematic direct measurements optical profiles [Cn2(h)] are lacking for many climates seasons, particularly in marine environments, because it is impractical expensive to deploy instrumentation. Here, a backpropagation neural network optimized using genetic algorithm (GA-BP) developed estimate at...

The moisture content of Yinghong No. 9 tea leaves is an important indicator for their processing. traditional method used to detect the not suitable large-scale production. To improve efficiency processing, a detection system based on machine vision was developed, and relationship between fresh researched. Firstly, nine color features five texture images were extracted, two different databases ...

Abstract Background Image quality and quantitative accuracy of positron emission tomography (PET) depend on several factors such as uptake time, scanner characteristics image reconstruction methods. Ordered subset expectation maximization (OSEM) is considered the gold standard for reconstruction. Penalized-likelihood estimation (PL) algorithms have been recently developed PET to improve quantit...

Deciding on the type of anesthesia traditionally depends on personal preference and experience of the interventionalist. Recent evidence appears to support the shift from general (GA) to local (LA) anesthesia in neurovascular interventions. Regional anesthesia reduces the risks of major complications associated with carotid endarterectomy compared with GA,1 However, unlike elective intervention...

In this study a hybrid differential evolution-back-propagation algorithm to optimize the weights of feedforward neural network is proposed.The hybrid algorithm can achieve faster convergence speed with higher accuracy. The proposed hybrid algorithm combining differential evolution (DE) and back-propagation (BP) algorithm is referred to as DE-BP algorithm to train the weights of the feed-forward...

Wind power generation is the major approach to wind energy utilization. However, due volatility, intermittent, and controllability of power, it difficult control scheduling which brings challenges grid-connected operation dispatch power. Therefore, accurate prediction system worthy in-depth study. And this paper proposes a model based on logistic chaos atom search optimization (LCASO) optimized...

ABSTRACT. Licorice-associated hypertension is thought to be due to increased renal sodium retention. The active compound of licorice, glycyrrhetinic acid (GA), inhibits renal 11beta-hydroxysteroid dehydrogenase type 2 (11beta-HSD2) and by that mechanism increases access of cortisol to the mineralocorticoid receptor that causes renal sodium retention and potassium loss. In addition, a direct vas...

In order to solve the problem of low voltage caused by unbalanced load in distribution network, a transformer loss intelligent prediction model under is proposed. Firstly, mathematical with an established. The zero-sequence impedance and neutral line current are calculated using Chaos Game Optimization algorithm (CGO), correctness proved actual data. Then, correlation among network input variab...