The level of awareness about ocean wave energy as a viable source useful has been increasing recently. Different concepts and methods have suggested by many researchers to harvest energy. This paper reviews compares the efficiencies power performance different converters. types analyses used in deriving reported are identified, stage conversion processes at which were determined is also identified. In order find common way compare technologies, hydrodynamic efficiency relation characteristic...

A soft fault diagnosis method for analog circuits based on support vector machine (SVM)is developed in this paper. SVM is a novel learning the statistical theory, which powerful tool solving problem with small sampling, nonlinearity and high dimension. The multi-classification methods including one versus rest, one, decision directed acyclic graph (DDAG) has been applied to many areas. Some researchers have used it of circuit. selection parameters an important influence classification...

In this paper we review a particular connection between information theory and group theory. We formalize the notions of elements lattices, first proposed by Shannon. Exploiting formalization, expose comprehensive parallelism lattices subgroup lattices. Qualitatively, isomorphisms are demonstrated. Quantitatively, decisive approximation relation entropy structures log-index corresponding discovered Chan Yeung, is highlighted. This approximation, addressing both joint common entropies,...

Power big data-based artificial intelligence or data mining methods, which can be used to analyze electricity consumption behavior, have been widely applied provide targeted marketing services for consumers. However, the traditional clustering algorithm has difficulty in judging new patterns. Deep neural networks usually need large amounts of labeled data. there are few comparable features basic data, and cannot meet actual needs. Therefore, an intelligent classification framework behavior...

A novel two-stage low frequency electronic ballast circuit is proposed in this paper. This achieves high power factor and acoustic resonance free with simpler, cheaper, more reliable topology. Simulation results experimental obtained from a laboratory prototype for 70 W metal halide lamp are shown to verify the validity of ballast.

Probabilistic Load Flow (PLF) calculations are important tools for analysis of the steady-state operation electrical energy networks, especially distribution networks with large-scale distributed generators (DGs) and electric vehicle (EV) integration. Traditional PLF has used Cumulant Method (CM) Latin Hypercube Sampling (LHS) method. However, traditional CM requires that each input variable be independent one another, Cholesky decomposition adopted by LHS limitations in it is only...

An adaptive acoustic resonance free electronic ballast for high intensity discharge (HID) lamps is proposed. The implemented a digital method to detect of HID lamps. lamp power kept constant. Simultaneously, end life detection also provided. A prototype the 250 W metal halide has been built, and experimental results proved its validity.

Mineral exploration activities since 2010 in a previously poorly explored region of northeastern Guangxi province, South China, confirmed the existence potentially large hydrothermal Ni-Co deposit. As newly discovered deposit, many aspects this deposit are still unclear, including which tectonic setting formed and how high-grade mineralization developed. To address these questions, study, we conduct comprehensively geochronological geochemical study on Dajin pluton (consisting biotite...

This paper investigates the electromagnetic induction question of detected object in field aiming at tomography. The takes parallel as exciting mode and sensor part is composed 16 excitation plates 8 detection plates. When it works, electric current applied all plate same time with amplitude showed sinusoidal distribution circle. system simulated by Ansoft software. By a change frequency time-varying field, material characteristics, well location size objects other factors to study...

This paper propose improved support vector machine algorithm. The algorithm includes preprocessing the sample training set, improvement of binary tree classification and incremental learning Considering specific precision requirements analog circuit fault diagnosis, three algorithms are integrated, achieve good results. simulation demonstrate that has higher faster diagnosis speed compared to traditional

To the problem of premature convergence and lower searching precision standard particle swarm optimization (PSO), this paper provides niche chaotic mutation quantum-behaved (NCQPSO) algorithm for image elastic registration, through maximizing value JS measure to achieve. In algorithm, methods eliminating strategy are introduced improve global optimizing ability. Furthermore, shrinking mutation, which behaves well in refined local traversal searching, is precision. The experimental results...

UHF RFID is becoming the main stream of passive applications. Reader a key component application system. Based on ARM9 chip S3C2440, reader ASIC AS3990 and battery charger 9-channel programmable DC-DC power management SMB122, low-power handheld designed implemented in this paper. In addition to long enough read range, consumption also important for reader. A control program analysed detail

The bird's movement causes a variable primary response in the helicopter transient electromagnetic (HTEM) system called multiplicative noise (PMN). PMN dominates measured data on time and early off will significantly impede interpretation of shallow earth. Measuring estimating is difficult due to complexity kinematic state high testing cost. We propose use elastic-net regularized linear regression (ENLR) framework suppress adaptive momentum estimation (Adam) speed up process. First, we...

The ground-airborne frequency-domain electromagnetic method (GAFDEM) is a geophysical technique designed for the efficient exploration of resistivity imaging in areas characterized by complex terrain. Conventional transformation methods are limited accurately capturing amplitude and phase time-varying responses due to various noise interference. As result, results may be inaccurate even exhibit false anomalies. To address this issue, we propose novel orthogonal recursive least squares (ORLS)...

Mathematical model of electromagnetic tomography based on Maxwell equations is established. Finite element method adopted to solve forward problem. In the process inverse problem, improved genetic algorithm used realize image reconstruction and simulated with MATLAB. The simulation results show that it effective feasible adopt finite in tomography.

Based on the direct product of Boolean algebra and Lukasiewicz algebra, six lattice-valued logic is put forward in this paper. The algebraic structure properties lattice are analyzed profoundly tautologies six-valued system L6P(X) discussed deeply. researches paper can be used systems helpful to automated reasoning systems.