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When exploiting large-scale ore-body, stability of panel pillars is the key to stability of structural support mechanical system of ore pillar-surrounding rock. It concerns the mining sequence of the ore-body, parameters of stope structure, and is a problem that must be considered to some mines of safety...

In this paper, an l2 norm constraint-based reduced-dimensional MUSIC (l2CRD-MUSIC) algorithm for joint angle and delay estimation (JADE) with automatic pair matching in multipath environment is proposed. By utilizing the l2 norm constraint on the steering vector, the quadratic optimization problem in...

Aiming at the difficulties to make data processing by description in graph of structure and characteristic, and at the limitations resulting in interference and feedback mechanism for data processing of robot tactile sensing garment, the paper presented a novel fuzzy cognitive map based data processing...

In this paper, a soil column model is built by using VADOSE/W module in Geostudio software. The numerical simulation analysis is carried out by taking into account the effects of rainfall, gas diffusion, evaporation and vegetation transpiration, in order to explore the change law of volume water content...

In recent years, most cities have realized urban central heating, but also built their own intelligent heating networks. However, there are still many problems in the control and management of heating network. In this paper, through the advanced Android system, an intelligent heating monitoring system...

Due to the advantages of organizational mechanism and profession knowledge, NGOs have increasingly become an important force to deal with public crisis management and played essential role in modern society. Thus governments should create a benignant environment for the development of NGOs and expand...

With the rapid development of cloud computing technology, the trusted transmission method of local multiplexed data in the data center based on cloud computing has become a hot topic in current research. Traditional multiplexed data transmission methods have problems such as low channel utilization,...

New types of bio-protection materials are based on the requirements of antibacterial, hemostasis and biological barrier functions. Current research focuses on multi-layer composite membrane technology (such as nano-membrane and interface modification) to enhance the protective efficacy and biocompatibility...

Oxidative stress has been proposed as an important pathogenic factor in diabetic wound complications. This study investigated the effect of polysaccharides from Radix Astragali (RAP) on alloxan-induced oxidative stress in diabetic mice. Diabetic mice were randomly divided into five groups: diabetic control,...

Smart phones in the design level of innovative space is getting smaller and smaller, and TRIZ innovation theory can quickly solve the problem of invention and technical innovation. This paper using the STC operator method, from the three dimensions of the smart phone size, standby time and cost, do the...

Scientific and reasonable earthquake natural disaster assessment has become an important reference for government materials distribution and emergency rescue. It is particularly important to estimate the damage situation and distribution of houses. As a high frequency area of earthquakes, Yunnan shows...

Shield excavation technology is widely used in subway tunnel construction. There are complex risk factors in the process of tunnel excavation, and there is a certain correlation between them. The traditional reliability analysis is difficult to characterize the coupling relationship. In this paper, the...

With the constant improvement of economic level in China and quick development of Internet technology, virtual instrument technology has been developed and applied rapidly. The genesis and application of virtual instrument technology is based on PC measurement technology. So this article will study the...

In order to build human cognition features into the procedure of clustering, this paper introduces a novel text clustering system, CogTCA (Cognitive Text Clustering with Ants), which (1) represents texts according to four cognitive situation dimensions in form of cognitive situation matrices and vectors...

Operational capability aggregation of armaments systems is significant for its future developing, planning, manufacturing and synthesis using. Holistic avalanche character of armaments systems can’t be represented in traditional linear aggregation of operational capability, which regards the “system”...

The clinical pathway execution is a complex system engineering related to multidisciplinary or multi-department collaboration such as examination, laboratory test, operation, nursing, etc. This paper has proposed a multi-agent based simulation method from the hospital system level, and some key technologies...

Image exists in many key points, these points to the change of brightness the phenomenon such as scale; scale has the characteristics of stable constant. SIFT feature matching algorithm is based on the key points to complete the image matching. It has the very strong matching ability, as the image illumination...

On the basis of logic analysis, using macro-statistical data, this paper makes an empirical study on the consumption effect of income gap among industries by some measurement method, such as unit root test, VAR model estimation and Granger causality test and so on. The results show that the income gap...

In order to real time control of coal mine fan equipment running status, A kind of mine fan state monitoring system based on ZigBee has been designed, Through collect and processing the fan operation parameters, such as temperature, vibration, realize the function that real-time monitoring the fan’s...

In order to solve the problem of LEACH Algorithm cannot guarantee the larger residual energy node absolutely were elected as cluster head , and it consumes large amounts of energy for double counting of cluster head election, at the same time, the influence of the node distance for cluster head election...

Since natural disaster risk is a feature of the future and is also dynamic, the result of probabilistic risk analysis for natural disaster has its own time limit. Considering that risk is for the future and meanwhile dynamic, the result of probabilistic risk analysis in natural disaster could just represent...

In recent years, many local governments have increased their financial expenditure on science and technology, hoping to promote the development of local economy by strengthening their support for science and technology. Taking the prefecture-level cities in Fujian Province as the research object, this...

Nowadays, more and more enterprises begin to take the financial management as one of the core management of an enterprise, especially the small and medium-sized enterprises in China. They play an increasing role in the process of economic development and reform. In the face of new market development...

High voltage circuit breakers are most important protective device in power system. The contact ablation may cause the failure of circuit breaker and endangers the safety of the power system. Dynamic resistance measurement (DRM) is considered to be an effective assessment technique for contact ablation...

China is experiencing a fast-speed urbanization, which has brought many social and urban problems such as social exclusion, gentrification and pollution. Urban regeneration has been employed by many countries and regions to solve the problems arising during the urban regeneration, in particular the regeneration...

This study aims to evaluate and compare the performance of six mathematical models in predicting soil particle size distribution (PSD) curves based on soil texture data. The models include the Fredlund, Weibull, Skaggs, Haverkamp, Zhongling Guo, and Rosin-Rammler equations. These models were used to...

By analyzing the relationship between the GDOP value and the area of the polygon formed with the endpoints of the satellite-receiver unit vectors in 2-D, the optimal satellite-receiver geometry (SRG) and the minimum GDOP value of n satellites( ) in 3-D were deduced in this paper. Based on the minimum...

By using literature, questionnaires and other methods are to discuss the theory and practice of physical education courses model optimization in medical colleges, after analysis it can point out that currently most physical education curriculum in medical colleges exist curriculum goals are not clear,...

In this paper, a definable scheme for grid management information and data management in power system automation is proposed, and a software technology framework and implementation method are established to provide an effective and flexible data management method for grid operation analysis and management....

This study aims to analyze and predict the number of deaths in road traffic accidents through multiple linear regression models, with a focus on examining macro influencing factors. The article collects multiple macroeconomic and social variables that affect the mortality rate of traffic accidents, including...

The new crown epidemic has an impact on the job market of college students in China. Solving the employment problem of college students and energizing various industries are crucial for college student, enterprises and the country. From the perspective of promoting the employment of college students,...

This paper presents a kind of power system short-term load prediction algorithm based on fuzzy control and RBF neural network, to solve the problems of th traditional RBF neural network in electric power system short-term load forecast errors. Through the example verification, this method can improve...

This article is aimed at the mode of existence of curriculum system similar to computer talents straining independent school, the teachers strength is weak, professional knowledge lag, lack of practical problems in practice, based on the school-enterprise cooperation "Cheng-dong college years trying...

The engineering cost specialty mainly trains students’ control over project cost and the budgetary budget calculation ability of the project. This paper summarizes the research results of scholars such as Chen Shuzhen, Liao Junyan, Guo Xu, Zhou Hongli, Zhou Yazhen, Yan Peng, Gao Wei and Liu Xuxia. The...

This study uses the principle of differential game theory to explore the security investment decision and coordination strategy between cloud service providers and users. The Hamilton-Jacobi-Bellman equation is used to determine the equilibrium solution for non-cooperative decision making and cooperative...

At present, mathematics has been widely used in biology, and biomathematics, the combination of biology and mathematics, has become an entirely separate discipline, but also gotten good development and application. Biomathematics is widely applied, has various branches, and the new branch is still appearing...

There exist many kinds of electromagnetic interference sources in a small and enclosing underground coal mine work area, which could lead to that the instable phenomenon of the wireless monitoring and communication systems constantly occur. Focused on the randomness of occurrence and duration of electromagnetic...

This paper briefly describes the practical significance of coal mine broadcasting system, a comprehensive consideration of functional requirements and the control demands of the system, analyzing the advantages of Industrial Ethernet combines CAN field bus technology and the feasibilities of it’s applications...

A high-impact heavy rainfall event occurred in Beijing, China on 16 July 2018, which is a typical warm sector heavy rainfall associated with Mesoscale Convective System (MCS) of multi cells. To clarify the key factors influencing the heavy rainfall, ensemble sensitivity analysis (ESA) is conducted using...

To investigate the mechanisms underlying fall accidents, this study first analyzes the rheological mutation process from a relatively safe state to accident occurrence on construction sites using rheological theory. It then examines the process of danger level changes among the causal factors of fall...

In situ synthesis technology was used to synthesize the NiAl matrix composite reinforced by TiB2 which were fabricated by induction heating furnace in this work. Modern testing technologies were applied to analyze the microstructures of the products and the reaction process. The results showed that the...

Not all colleges and universities for elite education mode; Employment employment dilemma, have prompted us to thinking about the classification of Education; Set up a complete modern vocational education system, come up with a modern occupation education system standards and evaluation methods, given...

The water price changes affect not only the daily life of residents, but also the national economy and the people’s livelihood. This paper focuses on adopting the quasi-experiment design to collect research for analyzing the adjustment rationality of water price from consumer perception perspective in...

t is very important for reasonable analysis of complex workflow model based on Petri nets. Based on the four basic models, the complex workflow model is simplified by equivalent layer. According to the equal servicing time formula of series model, parallel model and selection model, calculate the simplified...

A stochastic conjugate gradient multi-modulus algorithm based on global artificial fish swarm and genetic optimization DNA encoding sequences(GAFS-GDNA- SMMA) is proposed to solve the high computational loads, low convergence rate, and large mean square error(MSE) of the multi-modulus blind equalization...

In order to realize the online monitor of the environment and energy consumption of the telecommunication room, we employed the environment sensor to monitor the temperature, humidity, and water leaching of the telecommunication room. Meanwhile, energy consumption sensors were utilized to monitor the...

There is much condensate water formed on the surface of the pipeline carrying low temperature crude oil in Da Hinggan Ling Prefecture,because of the coefficient of the high relative humidity and the difference in temperature between the pipeline and air. In this article, a new superhydrophobic & anti-corrosive...

Automatic image annotation is a fundamental and challenging task in the field of image retrieval. This paper introduces the concept and process of random forest algorithm. According to the characteristics of the current annotation model, the random forest algorithm is applied in image annotation field....

With the increasingly turbulent political situation and the outbreak of public health events without warning, it will not only affect people’s physical health, but also affect the global financial market, causing the market to fall into a huge crisis, thus leading to a continued decline in the worldwide...

While artificial intelligence has shown promise in recruitment, existing research lacks comprehensive empirical evidence comparing AI-powered and manual resume screening in real enterprise settings. This study addresses this gap through a novel controlled experiment using 1,000 technical position resumes...