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...