Thermal fatigue and cracking of un-isolable pipelines caused by mixing of cold and hot water in pipelines have been reported. This is because the builder's system designs are all based on foreign technology, and assessments are needed to prevent similar thermal fatigue problems from occurring to power...

In order to improve the precision of quasi-dimensional model for predicting diesel engine performance, three kinds of air entrainment period in quasi-dimensional model for diesel engine working process is developed in this research. The software MATLAB/Simulink is utilized to build the quasi-dimensional...

For effectively measuring logistics standardization effect to promote the logistics standardization, it was proposed that logistics standards system and two kinds of "push" and "pull" logistics standardization modes based on supply logistics system architecture of automobile parts. Based on defining...

With the rapid development of cloud computing, a large number of datacenters were built. These datacenters provide excellent computing resource and service to people. However, they also bring huge energy consumption at the same time. Scientists all around the world try to solve this problem, for which...

Multiscale phenomena represent a common challenge in many areas, including chemical engineering. Multiscale problems in gas-liquid flows, accompanied with highly turbulent flow and complex geometry of internals, make it difficult to achieve the fast and accurate simulation. In this report, special emphasis...

We have developed and implemented a new method for evaluating train service plans. The basic idea of this super-efficiency DEA model with preference (SEP DEA) is to simultaneously consider the evaluation with selection of indicators, classification of indicators and indicator weight determination. The...

The structural characteristics of our country's corn harvester are narrow-track, high centroid and existence of eccentric distance, so rollover accident is easily to occur when going up and down the hills mountainous and hilly regions for complex terrain. In the previous paper, we introduced the Hydro-Pneumatic...

Traffic accident on expressway is one of main reasons of traffic congestion on the road section and the road network. In order to accurately estimate expressway capacity under traffic accident and upstream direct traffic diversion, a parking model of traffic accident section is presented with VISSIM...

To improve customer Satisfaction, Henan branch of China State Grid build power supply service Satisfaction evaluation system to analysis service quality based on data from 95598 telephone hotline and questionnaire survey considering the psychological need of customers. Only by this could standardize...

Nonlinear model simplification is an important part of many applications, such as flow control, optimization and statistical analysis. In this article, we summarize the POD-DEIM method to solve the nonlinear system of the truss frame .And use an example of a clamped beam to illustrate the DEIM specific...

The cluster manifold becomes an essential part in a subsea production system, which can gather the production fluid from subsea wells and distribute water, gas and chemical agents from the floating production system to each subsea well. On account of its advantages such as a small initial investment,...

The public security personnel need a higher ability for the intelligence analysis due to application of big data policing. Combined with the application environment of big data policing, it analyzes the problems existing in the cultivation of students' information literacy in Police Colleges and universities,...

A delay differential equation model of paddy ecosystem was put forward to reveal the interaction among rice, weeds and inorganic fertilizer on the system. The results show that, the system exists a rice and weed extinction equilibrium, and it also exists a rice extinction or weed extinction equilibrium....

The paper presents an approach to modelling the document information structure to provide the operational document formation based on database information. The method of document structuring by highlighting the specific elements of variable information and applying a specialised markup language is proposed...

In the engineering practice of camouflage, which is located under the background of mountain forest land national defense engineering needs to disguise. A kind of effective method to deal with the optical band infrared and radar reconnaissance is needed. In the forest background, vegetation is a common...

Choosing panel data of 30 provinces (except Tibet, Hong Kong, Macao and Taiwan) within years of 2007-2015 as research samples in China, and use the financial development level as threshold variable. By using the panel threshold model we investigate the nonlinear relationship between R&D investment and...

A numeral method for simulating three types of noise in atomic clock is presented, and the specific recursive functions to produce the random processes are given. The simulation is simple by computer, and it is useful for designing atomic clock before committing the system to a hardware realization.

A private equity investment network can be composed of nodes and edges which represent the regions and the private equity relationship between regions respectively. This paper analyzes the network's density, average path length, clustering coefficient degree, betweeness, closeness centrality and its...

In this present paper a model with media coverage and vaccination is proposed on the spread of H7N9 influenza. We worked out the disease-free equilibrium and basic reproductive number by mathematical method and analyzed the sensitivity and uncertainty of the basic reproductive number by random sampling....

Based on the analysis of the inter - interval intuitionistic fuzzy sets and the interval - valued intuitionistic fuzzy sets, the multi - attribute group decision - making is used to reconstruct the model and apply it to the trust degree calculation of the trust mechanism. By comparing the multiple attributes...

At present, next-generation sequencing technology are quickly applied to every field of life science research. Per base has higher coverage and lower cost. Shorter reads and higher error rates from these new instruments necessitate the development of new algorithm and software[1]. We describe an assembly...

Prey toxicity and coexistence of multiple prey species are properties that exist wildly in predator-prey systems. Prey toxins might inhibit the food intake and maturity of predators. Optimal foraging theory predicts that predators prefer prey which can provide more energy and cost less energy to handling...

In order to build the simulation method based on DEM, test orthogonal test and complete test was done. Based on electric heating test, the ethanol distillation mechanism of solid-state fermented crushed straw material was studied. The main factors influence the distillation speed are wet content, heating...

In the field of industrial control, the dynamic mathematical model of the main equipment or process of the system is established by the field data, which has become the hot spot of system identification at present. Due to various reasons from the industrial production process and means of measuring,...

Several simple mathematical models are developed in this paper, which are used to describe the bending actuation of a single layer polypyrrole actuator, especially for the tip deflection. All the results are compared with the experimental result which was gotten in previous research. The Comparison result...

We suggest an original method of problem-oriented integration of SMP-models allowing to unite different manufacturer's models in one complex. The method consists in adding to the SMP-models structural-parametric and functional description creating a semantic level of presentation of a modeled object....

The authors are developing a subject-oriented environment of the spacecraft onboard equipment simulation modeling. This environment is basing on the Simulation Model Portability Standard, which determines the technology for compatibility and transferability of simulation models within big simulation...

In order to explain customer choice conditioned on opened classes more realistically and efficiently, I assume a customer considers a discrete choice as a fare class interval and buys the lowest opened class with that interval. Unlike the traditional one-dimensioned, unstructured choice model, I model...

The vibration mode of curved box-girder bridge was decomposed into 4 mode direction factors by energy ratios. 4 two-span curved box-girder bridge models were built taking span ratio as parameter. The modal characteristics and the mode direction factors were analyzed along with varying span ratio. It...

In the multi-agent Parrondo's games, if game A and game B both take certain network structures, then the heterogeneity of the network will produce impacts. By using the analytical approach based on the discrete Markov chain, we analyzed a one-dimensional case. Then, we deduced the transition probability...

We use satellite data to calculate Dimethylsulfur (DMS) in Greenland Sea (20øW~10øE, 70øN~80øN) in year 2003~2006. At the same time, explore the correlations between DMS and sea-ice concentration (ICE). Among the huge global satellite data, the chlorophyll a (CHL) and sea-ice concentration data were...

Man has tried to understand nature and represent it in mathematical ways since ancient times. Looking back to the past, instead of finding uncultured civilizations, we found that they understood the beauty of nature, and expressed it by numbers. The Tiwanaku Empire is an example that amused archeologist...

Meshless local Petrov-Galerkin (MLPG) method is presented to treat parabolic partial differential equations with discontinuous material coefficients. In this paper, we use MLPG method to solve fractional constant coefficient discontinuous media mixed boundary problem. The trial and test functions for...

In this paper, information and communication assets in the power grid are modeled as graph data. A graph database, Neo4j, is chosen to capturing the connections that could help to analyze fault ranges. Based on breadth-first search, recursion terminations are designed to obtain the fault range from the...

Camouflage as one of the effective way that against modern detection and precision strike and improving the survival ability of military targets is important content 0f combat. The digital camouflage can break the boundary of a camouflaged target between different colors, and make it blurred and broken,...

Quantitative measures for sustainable development are important topics and frontier areas of sustainable development research. The core of this paper is to determine whether human beings live within the bearing capacity of ecosystems. This paper introduces the ecological footprint method, which is proposed...

The implementation of the Shanghai-Hong Kong Stock Connect program and Shenzhen-Hong Kong Stock Connect program mark the gradual opening up of capital account in our financial markets and the relaxation of exchange rate and interest rate control. It makes the arbitrage mechanism of A+H stocks, trading...

We analyze the space of 9 ž 9 optical flow high-contrast patches by computational topological tools. The fact that there are subspaces of 9 ž 9 optical flow high-contrast patches with topology of a circle is experimentally shown. Subspaces of 9 ž 9 optical flow patches with homology of the Klein bottle...

Purposes: Analysis of the Chinese women's shot player Xiangrong LIU 2016 national track and field throwing group race (Xipu station) champion throwing action, revealing the law of shot put. Procedures: Application data engineering method - with two JVC GC-PX10AC cameras were placed in the direction of...

In this paper we study the patterns of behavior of the stock price and the results of Merton on European option pricing spread by stochastic analysis method. Assume that the stock price jump process is special class of compound Poisson process and the volatility without jump is the function of time....

In order to analyze the highway construction cost trend, and improve cost management level, putting forward using the Kalman filter to estimate the construction cost. Regarding the ratio between actual cost and responsibility cost as the system variable, and demonstrating the feasibility of Kalman filter...

This paper focuses on the problem of modeling the correspondence pattern for ordinary people. Suppose that letters arrive at a rate and answered at a rate . Furthermore, we assume that, for a constant T, and the remains are answered in last in first out order. Let W_n be the waiting time of the n-th...

Crack initiation and propagation induced by fatigue damage under the action of complex random stress spectrum is the main form of structural failure. The direction of crack initiation is closely related with the maximum principal stress direction, but the maximum principal stress direction of complex...

The relationship of Yule's analysis about pauperism with empirical study has been less recognized. The article explores the historical trace of research pauperism by Yule, which could be summarized as follows: (1) value the social problem from the innovative view of statistics; (2) arrange the available...

In this paper, a prediction model integrating machine learning and statistical analysis tools is presented to predict the trend of stock market. The proposed approach consists of three stages, as follows. In the first stage, the system uses technical analysis to calculate useful indicators based on historical...

This article selects the search data of Aliexpress cross-border e-commerce platform in wedding dress industry. The behavior of consumers will leave traces on the platform. Usually expressed as search index, purchase index and the number of compared products. Through the analysis of correlation, regression...

Quantitative analysis of the potential causes of railway accidents is essential for ensuring the safety of railway. In this context, this paper proposes a directed railway hazard causation network (DRHCN) based on the complex network theory. According to the characteristic of the DRHCN, four statistical...

Based on the low altitude observation data of Panjin wetland during the typical period from November 10 to 20, 2015, the characteristics of wind speed, wind direction and air temperature at low altitude, and the variation laws of altitude and stability of the atmospheric mixed layer were analyzed. By...

Mapping control survey for 13 control reference points were carried out based on RTK technology using GPS/BEIDOU/GLONASS multi-constellation compatible GNSS receivers in various urban environment (open, building shelter, tree shading, etc.). Operation scheme and technique flow were discussed. Operation...

In this study, a remanufacturing supply chain consisting of a single manufacturer and a single retailer is considered, and a Stackelberg game model with the manufacturer as the leader and the retailer as the follower is built. The changes of decision-making in two different cases have been compared and...

In this article, assuming the output of staff can be observed,we construct the principal-agent incentive model between staff and hotel based on utility maximization. The optimal incentive contract including staff turnover rate are respectively constructed under two cases: the staff's effective working...

The frontier field of science is very active in every subject, and it has a distinct mechanics. This law is highlighted in the number of research results in the rapid acceleration of growth, and has a strong academic radiation. Analysis of the frontier of scientific research results based on the characteristics,...

Based on analyzing the climatic conditions of Jinan, the physiological characteristics of bryophytes and the features ofglass pumice, this article proved the feasibility of using bryophytes and glass pumice in the ecological landscape construction of this area, and put forward the design methods of using...

This paper discusses the problem of pricing on some multi-asset option European exchange option in jump-diffusion model by martingale method. By changing basic assumption of William Margrabe exchange option pricing model to the assumption that jump process is count process that more general than Poisson...

Studied the theory of integration of rail and bus transit was. Combined with the urban master plan, analysis the two characters, With the study on the characteristics of city tenor city economic developing economic globally and the characteristics of market economy, studied the passenger flow forming...

Social Media data can truly reflect hot spot and attitude of people to transport policy. The scientific social media data mining and processing method can excavate effectively the public's focus to transportation policy and provide a new transportation policy evaluation way. Firstly, the evaluation index...

Previous research has shown that aviation fuel costs are the first major cost of air operations, and it is a key factor in profit and loss. In the operating environment under the combined effects of many factors, regardless of operating costs breakeven only to calculate the critical point of save fuel...

This manuscript first analyzes the significant energy productivity improvement during the 12th Five-Year Plan (FYP) in Beijing, and then gives a separate decomposition in the factors that affect energy intensity in Beijing based on Theil Index. The influencing factors on energy intensity is decomposed...

Big data are widely used today, whether and how to use big data in economic variables forecast has become a new field of economic research. The equipment manufacturing industry is the foundation of the national economic development, so forecasts the development of equipment manufacturing industry is...

The marketing modes of Import-oriented Cross-border E-commerce (ICBEC) are popping up at an unprecedented pace in recent years under the attraction of the huge market and with Chinese people's increasing demands for overseas products. Therefore, the ever-growing competition among ICBEC has pushed the...

Based on the questionnaires of 331 beginning teachers in primary and secondary schools, the relationship between role stress and career commitment was investigated. The study reveals that the majority of beginning teachers are under relatively large pressure and their career commitment is moderately...

Scientific and technological innovation plays a more and more important role in the development of society and the progress of human civilization. Man is the main body of scientific and technological innovation activities, Essential qualities of people in science and technology innovation activities...

Human beings are the key of technical innovation, therefore higher requirements is necessary to achieve ambitious goal of improving scientific and technological innovation capacity.This article puts forwards six required human qualities based on the development of society and some cases. Then, some key...

In order to study the effect of heavy rain on the growth of tobacco in Fujian Province tobacco planting area, it used the entropy weight theory that it computers the danger index of rainstorm by the torrential rain days and rainfall intensity as the evaluation index, and under the support of GIS technology...

In this paper, variational discretization approximation of bilinear elliptic optimal control problems is considered. Firstly, we construct a variational discretization method for the bilinear elliptic optimal control problem with control constraints. Secondly, we derive the convergence of the approximation...

If real constants , (at least one is not zero) let g(y)d(f(y)/g(y))/dy= + f/g, then the naming the equation dy/dx=P(x)f(y)+Q(x)g(y) for Bernoulli-Deng Equation is suggested. The equation can be integrated and its general integral is given.

The naming the equation dy/dx+{[(dg/dx)w+d /dx]/g(x)-q(x)F[g(x)w(y)+ (x)]}/(dw/dy)=0 for Li-Fan Integrable Unified Equation is suggested. Several forms of the equation are given.

Integer Linear Programming problems are significant in many areas, and there exist many classic methods to deal with such problems. Based on the intuition that a proper pre-estimation of those problems may help find a good initial point that is relatively closed to the final solution, we constructed...

One of the advantageous generalizations of Zadeh's fuzzy set theory is the concept of interval-valued fuzzy subset. This generalization of fuzzy subset is frequently and successfully applied by engineers and scientists in the fields of Robotics, Control Theory and Computer Engineering. The purpose of...

In this paper, long-time behavior of a class of non-autonomous viscoelastic equations with fading memory is investigated. We establish the existence of a compact uniform attractor together with its structure in H10( )žH10( )žL2?(R+;H10( )). The compact uniform attractor is bounded in D(A)žD(A)žL2 (R+;D(A))...

A set S of vertices is a dominating set of G if NG[S]=V(G). The domination number (G) of a graph G is the minimum cardinality among all dominating sets of G. The decision problem of determining the domination number for arbitrary graphs is NP-complete. Here we focus on trees. If x and x' are duplicated...

Genetic regulatory networks with delay on time scales is considered in this paper. Some sufficient conditions are obtained to ensure the existence and exponential stability of a unique equilibrium of Genetic regulatory networks. The app-roaches are based on constructing Lyapunov functionals, the theory...

This article aims to improve the practice feasibility of game theory for logistics demand enterprises and the third party logistics enterprises in a principal-agent game. Firstly, some parameters are introduced to the game. Especially the complaint rate is used to depict the degree of positive work or...

In this paper, a Schwarz alternating algorithm is proposed by introducing two artificial boundaries for exterior mixed boundary value problems of Laplace equation. The theorem of the geometrical convergence is obtained for the algorithm. Two numerical examples confirm the theoretical results and demonstrate...

Use the history monitoring data of the gas of Shaanxi Huangling No.2 coal mine, the time series of monitoring data are decomposed and smoothed by using R language. The abnormal and missing values in the raw data are analyzed and three methods of time series smoothing (Simple exponential smoothing method,...

In 2016, Ivan Gutman et al. proposed the conception of the Gutman index of graphs. In this paper, based on the Gutman index of graphs, the vertex Gutman index of graphs is defined. On this basis, we obtained the maximum values and rankings of the vertex Gutman index of extended double stars, the extremal...

In this paper, we discuss heterogeneous complex analysis function and heterogeneous harmonic function, and establish the relationship between heterogeneous complex analysis function and heterogeneous harmonic function, and then obtain heterogeneous Liouville theorem.

This paper develops a Dirichlet-Neumann (D-N) alternating algorithm to solve the mixed boundary value problem of Laplace equation in an infinite domain, and analyses the convergence of the algorithm. By choosing a circle surrounding the original boundary as an artificial boundary to divide the unbounded...

This paper presents two novel forecasting algorithms for sports achievement based on combination of grey model and neural network: (1) GM-NN1: Firstly, the error sequence is obtained by GM(1,1) model using original data sequence of sports achievement, and then in order to gain a forecasting error sequence,...

In the visible light band, color is one of the most basic and the most important camouflage exposure symptoms. The use of color camouflage is the most basic means of resisting high-tech detection and monitoring means and precision guided weapon capture. The existing camouflage color collection mainly...

Let G be a graph with vertex set V(G) and edge set E(G). We consider the problem of orienting the edges of a complete bipartite graph Kn,n so only two different in-degrees a and b occur. An obvious necessary condition for orienting the edges of G so that only two in-degrees a and b occur, is that there...

In order to simplify enormous inductive-motor loads in online estimation dynamic equivalence for large-scale power systems, it is presented identification strategy based on the algorithm of differential evolution algorithm (DE) to acquired the parameter of equivalent motor loads. It presented to dynamic...

Feature selection is an important preprocessing step in machine learning. The aim of feature selection is to find an optimal subset from original features that satisfies a criterion. Rough set theory (RST) is one of the most effective ways to solve feature selection problem, but RST is inefficient in...

Credit risk which can be reduced by credit scoring is the focus of financial risk control. In the construction of Internet credit scoring model, we encounter the problem that variables have high dimension. To solve this problem, feature selection is necessary. Simulated annealing and genetic algorithm...

Background: Individual SNP often only exhibit a small effect, but combinations of SNPs are assumed to be strongly influence the risk of disease. Obviously, selecting an optimal subset of SNPs, which most associated with disease, is a NP-hard problem. Results: To obtain a higher performance of predicting...

The effects of velocity-slip and temperature-jump boundary conditions on Non-Newtonian flow and heat transfer in the micro channel have been investigated in this paper. The governing boundary layer equations have been transformed into a system of nonlinear differential equations through the similarity...

Aiming at the challenge of intelligent control of harvesting robot, this study firstly introduced the concept of the harvesting behavior and its basic behaviors, and based on those concepts the behavior knowledge database was established as a library of the functions of the basic behaviors. Secondly,...

This article has given the intelligent vehicle concept and analyzed six development trends, including market growth accelerated, core technology intelligentized, connection networked, resource integration platform-based, cross-border cooperation ecologicalized and business model shared. We should grasp...

The technology of autonomous vehicles is growing fast in current time. On one hand, the popularization of autonomous vehicles is expected to greatly reduce the occurrence of traffic accidents, meanwhile lowers the income of premium for insurance companies; on the other hand, the decrease of traffic accidents...

Implementation of smart growth theories into city planning has become increasingly important and necessary. In this paper, a metric to measure the success of urban smart growth was defined as Success Index and the relationship between Success Index and the three E's components was established based on...

In this paper, a hexarotor unmanned aerial vehicle (UAV) is concerned to solve such problems as smaller payload capacity, lack of both hardware redundancy and anti-crosswind capability for quad-rotor. Considering the under-actuated and strong coupling nonlinear system with external disturbance and parameter...

Purposes: Integrated emotional concept into the innovative design of the human-machine interface of medical monitoring equipment to enhance its ease of use and availability. Methods: Use Donald Norman's three levels of product emotional experience model, Maslow's hierarchy of needs theory and Kansei...

Time Delay is common and inevitable in the dynamic system. The accuracy of system identification will not be guaranteed if time delay is not accurately estimated or handled properly. Using the theory of dependency measurement, this paper studies the delay identification of SISO system. Firstly, the copula...

This survey paper describes a focused literature survey of machine learning methods in order to detect pathological brain. Based on the published time and emerging methods, this paper introduces in details the methods used in each documents. Because of the requirement to select a good approach in the...

Cluster control system to realize mutual coordination between individual objects must determine the control and the information relationship in terms of logical and physical aspects. Study these problems of the system structure, system structure and control can be combined and ensure smooth information...

In the three-axis Cartesian robot system driven by direct current motor, factors such as mechanical inertia, load disturbance and complex contour error model would affect the pose accuracy of the end effector. Aiming at the problem, a fuzzy cross coupling controller is designed. First, the contour error...

For the high cost, large land occupation and low detection efficiency of auto ABS road experiment, an auto ABS indoor bench detection principle was proposed to make the detection of the integrative performance of auto ABS conveniently. The bench detection system mainly consists of road adhesion coefficient...

At present, the coal industry through the energy structure adjustment and the impact of coal imports, as well as coal prices are low in China. With the change of coal production capacity, various influence factors of coal production system changes. This paper simplifies the various influence factors...