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In this paper, the recursive backstepping nonlinear control method is proposed. Based on the Lyapunov theory, the controllers are designed to achieve the new hyperchaotic system globally, asymptotically stabilized at the equilibrium point. Furthermore, a robust control method combining backstepping and...

Risk evaluation involves not only the natural characteristic of hazard, but also the socioeconomic properties of the vulnerability. Therefore risk evaluation is a complicated but important scientific problem. According to the analysis of the developed characteristic, forming condition and influent factors...

This review comprehensively evaluates research on the lifecycle cost analysis (LCCA) of reusable packaging systems in the retail sectors of fruits and vegetables, automotive parts, etc. It categorizes researchers by product types and thoroughly analyzed the various models used by these studies to conduct...

In view of the current international security situation, this paper proposed a new steganography algorithm based on MP3 audio format aimed at solving solve the problem of network security communication. This algorithm combined pre-type algorithm and inlaid-type algorithm of MP3 audio steganography .Pre-type...

In this paper, the concepts and related conclusions of two-direction multiresolution analysis and two-direction refinable functions are introduced; two-direction wavelet with scale 2 is researched and is extended to orthonormal symmetric and antisymmetric two-direction wavelet with scale M and relevant...

It's impressive to learn about how our minds work. In this work, we have discovered that when a person closes his or her eyes, the value of multiscale symbolic transfer entropy(MSTE) [1] of electroencephalogram (EEG, Lead Fp1 and Fp2) grows larger. In other words, the coupling of Lead Fp1 and Fp2 is...

Due to favorable sound isolation to the impact sound transmission, People are prone to adopt floating floor as insulation structure. Of the researches on impact sound insulation through a floating floor, the theoretical study is much less than the experiment analysis. For the purpose to determine sound...

Internet + is to combine traditional industries with the Internet and transform traditional industries from the perspective of the Internet. To build a network culture with Chinese characteristics, we must correctly understand the nature of network culture, grasp the characteristics of network culture,...

In many large simulation laboratories, in order to simulate the characteristics of moving objects, often need to use mechanical devices to drive the experimental equipment in a specific space movement. The accuracy of the mechanical device is very high because the motion parameters of the object greatly...

Located in northeast China, Changbai Mountain is one of the ten famous mountains of China, referring to the national 4A level scenic area. It is divided into the scenic areas in the north, west and south. Although the west scenic area in Changbai Mountain starts late in development, it has advantaged...

In this paper, the effects of EDTA and EDDS as chelating agents, chelating-induced maize remediation on Tl-contaminated soils and their heavy metal leakage characteristics under rainfall conditions were studied. The results showed that both EDTA and EDDS could promote the uptake of Tl by maize, and EDDS...

In recent years, the e-commerce data landscape in the US has undergone significant transformations, especially under the shock of the COVID-19 pandemic, reflecting broader shifts in consumer behaviour and technological advancements as the digital marketplace continues to expand. Consequently, efficiently...

The self-balancing robot sensor characteristics, proposed indirect Kalman filter algorithm based on a gyroscope and accelerometer data fusion, optimal inclination and angular velocity estimates. The steering system is decoupled into two subsystems forward. For forward subsystem has strong nonlinear,...

This paper proposes a solution that combines Analytic Hierarchy Process (AHP) and Genetic Algorithm (GA) to optimize the training duration of training institutions with multiple training objectives by establishing a mathematical model for optimizing organizational training benefits under multiple constraints....

The soil water characteristic curve is a important parameter that expresses the unsaturated characteristic of water holding and moisture migration. With filter paper method, the matric suctions of soil samples in six water contents and three dry densities are measured, and the soil water characteristic...

An algorithm based on the primary star, called the two-step matching algorithm, is proposed. The recognition characteristic of this algorithm consists of angular distances between the primary star and its neighboring stars, and the directions of neighbor stars. This algorithm uses star map information...

In order to achieve high-performance control for permanent magnet synchronous motor, using intelligent control strategies, mainly fuzzy control and fuzzy neural network control, using Mat lab/Simulink toolbox designed fuzzy controller based on fuzzy PMSM Vector Control system simulation analysis, simulation...

After surveying and analyzing the educational condition of the High- School Physics, specifically about the stars’ movements, we treated the High-School Physics material as basis, researched enormous information from the internet and simulated three stars’ movements depending on numerical method, and...

The electricity of the micro grid mainly comes from the wind power, but generating power by wind is not steady, it brings some negative influences to the whole electricity system. So, it is necessary to improve the forecasting accuracy of the generating capacity by wind. It can make the whole electric...

This paper presents a shuffled frog leaping algorithm (SFLA) with comprehensive learning strategy (SFLA-CL) for global optimization. This algorithm uses a novel learning strategy whereby all other frogs’ information of the memplex is used to update the worst frog’s position. The strategy enables the...

In the research about machine learning, classification is the problem of identifying to which of a set of categories a new observation belongs, on the basis of a training set of data containing observations whose category membership is known. In this study, the procedure and principle of resolving classification...

Given the greenhouse microenvironment is more than one variable, strong coupling, large delay, time-varying controlled object, unable to establish an accurate mathematical model, the conventional switch or PID control cannot obtain the desired control effect, this paper results of previous studies lessons...

with the development of wind power industry,the numberof wind turbines connected to grid is increasing,so the inevitable question follows,especially the fault information.In view of the difficulty in locating the accurate position of wind turbine failure,a new wind turbine fault encoding method is proposed...

The outbreak of the COVID-19 epidemic has caused more severe trauma, especially psychological trauma, to the physically and psychologically vulnerable elderly patient population. Even after the elderly patients have recovered from the disease, the psychological trauma continues to have a negative impact...

Under the guidance of excellent engineer education and training project, this paper focus on the problems in the process of school-enterprise jointed training engineering undergraduates. The reasons based on school, enterprise, and students are presented and the measures how to solve the problems are...

This paper analyzed the particularity of agricultural supply chain, established a quality control model of modern agricultural supply chain. Erect supermarket distribution center as the key point of quality control, implement a one-stop quality testing by setting testing standards, testing process, testing...

As an important carrier of urban and regional development, the process of formation, agglomeration and diffusion of manufacturing industry agglomeration directly affects the operational efficiency of socio-economic factors and the regional spatial pattern. In this paper, the manufacturing industry agglomeration...

Genome deletions are one of the common types of structural variations. The discovery of deletions has become an important research field in SVs detection of genome sequences. At present, the existing methods have their own limitations, and these methods are also insufficient in precision and sensitivity....

Along with the gradually promoted reform in education, China has made lots of excellent records in athletics (here "athletics" equals to "track and field") events. However, in the course of college physical education, what we are faced with now in educative reform is how to make real improvements in...

The Mobile Media System is proposed in the article, it relies on Fixed-line broad-band, 3G/GPRS, wireless LAN commu-nication network, which can conduct re-mote configuration and unified manage-ment for the different types of mobile media terminal, implementing timing, orientation, scheduled content publishing...

With the rapid development of China's economy, people's daily living standards and health needs are increasing, but also with the rapid development of functional food industry, new undergraduate universities of functional talent training model needs continuous improvement and innovation, so as to keep...

Based on the methods of literature, field investigation, expert interview, mathematical statistics, system analysis and case studies, this article focuses on the analysis of the feasibility of BOT mode in the development of public golf course in China, the process of operation, the coordination mechanism...

Seismic events pose a significant threat to the safety of bridge structures, potentially causing extensive structural damage or collapse. Structural health monitoring (SHM) systems for large-span bridges capture structural response information and generate substantial data but face issues like sensor...

Deep water gravity jacket is a type of offshore steel structure developed in 1970s. Design depth of the type jacket is in 200m and 100~150m water depth is better. Now some foreign countries have the fabrication experience of the type jacket, however there is none fabrication experience in China. This...

An approach is presented to manage and support a LTE wireless communication networks. The achievements are expressed in terms of formulation and performance. In terms of formulation, a mathematical expression is modeled to describe the Admission Control and handover in LTE networks problem. The outcome...

This study investigates a university art and design studio to explore how a graduate–undergraduate collaborative model influences the development of design capabilities. Using 73 competition entries (2023–2025), a mixed-methods approach combining quantitative analysis and case studies examined work categories,...

The resonant tunneling diode (RTD) has attracted much attention because of its unique negative differential resistance (NDR) characteristic, RTD increases the powerful logic function of a single gate and is more suitable to implement the threshold gates. Recently, the generalized threshold gate (GTG)...

In this paper, we investigate the optimization problem of cloud service composition in cloud environment. First, the performance indexes for the optimization of cloud service composition is introduced. Then we propose an optimization method of cloud service composition, and establish a constrained multi-objective...

In this paper, we conduct research on the intelligent household model based on the ZigBee and data security enhancement technique. ZigBee protocol is a kind of close, low power consumption, low cost, easy networking, high capacity, high safety standard of wireless communication technology and it is very...

Based on the reasons coming from assessment conclusion, the passage evaluate the previous industrial structure adjustment policy implementation effect of ShanXi province. The results show that the previous industrial structure adjusting did not bring significant improvements to ShanXi province. The key...

Wind power generation is always weather dependent and has the trend of being integrated to power systems as the form of large-scale wind farms, which influences on power systems. Since the power network was not designed specifically to accommodate this type of generation, there are inevitably some points...

Early deformation cracking is a widespread problem in base concrete walls of high-rise building. In the view of material to solve concrete cracking at early age, new-anti cracking functional materials make it by reducing shrinkage and regulating hydration heat. In this paper, several groups of concrete...

The state has started to attach importance to ginseng planting work in the process of economic development and require the conformance of ginseng planting quality to relevant standards. As ginseng planting will cause serious damage of land resources, people transform it into artificial cultivation. This...

In this paper, time sequence fuzzy petri net (TSFPN) is proposed to build power system fault diagnosis models. Firstly, on the basic of taking the influence of incomplete and uncertain relay protection alarm information on fault diagnosis into consideration, the structure of TSFPN and the fuzzy inference...

The main purpose of this paper is to study the decision matrix of user preference data acquisition theory and method based on, to establish effective user preference acquisition model and the method, to further enrich and improve user preference decision matrix theory and method and for the user decision...

Although advanced conversational models like ChatGPT are capable of generating rich and coherent content, the generated responses often contain fictional facts and knowledge hallucinations. A mainstream approach to addressing this problem in the past has been fine-tuning or retraining models by injecting...

In today's globalized environment, our national culture began to go abroad. In contemporary writers in Shaanxi, Lu Yao, Jia Pingwa have begun to move international and translated into other languages and spread abroad. However, the differences between national cultures make a lot of problems in the process...

Nowadays, music education in rural primary schools is generally backward, and educational resources and teaching staff are relatively scare. However, as an emerging specialty, music production can play its advantages and make up for the lack of music education in rural primary schools. Therefore, it...

Green chemistry is the core concept of modern chemical discipline development and a key carrier for cultivating the “scientific attitude and social responsibility” core literacy in high school chemistry. As a basic discipline closely related to life, the environment, and production, chemistry teaching...

Under the "order contract mechanism of company + farmer" of supply chain of agricultural products and introduce the fair system, studies the influence on the supply chain and the coordination contract as farmers with behavior of fairness concerns This paper establishes two echelon supply chain system...