With the increasing task demand for complex system, the timeliness of the system is becoming a prominent problem, especially in the inefficient system and may even lead to safety problems. This paper proposes a modeling method considering the issue of timeliness for complex system, in which the clock...

The traditional magnetic measurement method is based on the magnetic dipole model that is a point model, and the shape information of the target cannot be determined, resulting in high false alarm rate and low detection efficiency. In this paper, a magnetic multi-order pole expansion model is proposed,...

This paper proposes a simulation system comprehensive management control software design method, which is used to monitor, manage and maintain the simulation system, and manage various hardware, software, data and information in the control system. It is management software that considers various types...

Searching music by emotion has always been strongly needed by users. Since music streaming applications usually have tens millions of music pieces in database, it is impossible to label emotion tags for each music piece manually. It is desired that an intelligent algorithm can recognize emotion expressed...

Nowadays educational robots have begun to walk into campuses and households, changing the traditional way of teaching and learning. There are many physical or virtual robot education platforms on the market now, whose perfect systems and mature hardware or software not only reduced the difficulty of...

Logistics equipment training is an important means to improve the logistics business level. The traditional training method has high training cost, high equipment loss and is vulnerable to the external environment. Using virtual reality technology to establish a realistic training simulation environment...

In a series of non-axisymmetric well-hole sound filed, besides judging the channelling type according to characteristics of different sound fields, judgment of cement deficiency position of channelling well-hole is also important. The essay put forward to arrange a series of receivers around the wall...

We represent a new approach to testing of spacecraft onboard equipment’s functional control using simulation model’s knowledge base for test procedures’ generation. It allows to analyze characteristics of the objects under study using software models with further creation of real equipment’s testing...

In this paper, we propose an adaptive inter-carrier interference (ICI) mitigation algorithm based on phase rotated conjugate cancellation (PRCC) scheme. For the MIMO-OFDM systems in high-speed train (HST) environment, the ICI is caused by the non-stationary time-varying channels. By updating the optimal...

As an additive manufacturing technology, based on a computerized 3D design model, 3D printing is mainly composed of high-precision mechanical systems, numerical control systems, injection systems, and computer technology. The software is layered discretely and numerically controlled to create a physical...

Even though the ship was designed and constructed by applying the current IMO (International Maritime Organization, here in after “IMO”) stability standard "IS CODE 2008", it has been found that the ship can be capsized due to the waves even in the static condition due to frequent accidents in the ocean....

Aiming at the problems that current methods of flow measurements for partially filled pipe are difficult to measure flow at low liquid level , install and maintain, the new measured method for partially filled pipe is proposed. The liquid level is got by using a high-precision pressure sensor that is...

The management of medical waste stream is an important issue of social concern. Based on the cooperative game theory, the cooperative game evolution model of the three-level hospital group and the basic hospital group is constructed. The Netlogo multi-agent simulation tool is used to analyze the behavioral...

To provide exact mechanics input for anti-high-overload optimal design of penetration projectile, a projectile-target response model was built. On the basis of force analysis for penetration process, the rigid body motion model for projectile was established by adopting Newton’s second law. Then, numerical...

Aiming at the problem of small size of ejected ink droplet and easy damage to contact between piezoelectric sheet and liquid in the process of casting sand mould 3D printing, an Indirect piezoelectric actuated diaphragm-driven micro-droplet jetting technology is presented to overcome the defects of the...

The article is devoted to determining the rate of development of cracks in a solid during a model experiment in a solid medium. At the same time, the rate of crack propagation and its resource development potential for the destruction of solids are substantiated.

Distribution automation is the most effective means to improve the quality and reliability of power supply.In view of the complexity of distribution automation test, this paper presents a design and operation scheme of distribution automation test platform based on RTDS.Based on the common distribution...

Firstly, this paper presents the logic modeling problem in the development of the general platform for the virtual maintenance training system of mechanical equipment, explains its content and composition, and points out two difficulties in the logical modeling of virtual maintenance training system...

This paper presents a device simulation study on a high-voltage 4-cell IGBT structure with a distributed gate resistance. It is shown that during turn-off, the emitter current of IGBT will demonstrate a “homogenous– non- homogeneous– re- homogeneous” evolution before the collector voltage rises. Therefore...

There are some problems in the planning of electric energy substitution, such as the disconnection between headquarters planning and provincial planning, the disconnection between provincial planning and the unscientific measurement. To release them, a two-layer planning model is proposed, with which...

With the advancement of various reform tasks, from the perspective of business content, service objects, and service channels, traditional power grid enterprises are facing a new business mode in electricity retail sector. Based on enterprises’ core influencing factors analysis of new business mode adaptability,...

Mixed ownership distribution electricity company develops business entrusted operation, can reduce business costs and improve business efficiency. Firstly, the entrusted business of mixed ownership distribution electricity company is studied. Secondly, based on risk matrix method, risk classification...

First-class cities match first-class power grids, build world-class modern distribution networks, and accelerate the construction of distribution networks in world-class cities to become the mission that Chinese power grid enterprises must undertake. There is no consensus on the current connotation characteristics...

In this paper, a novel subsurface targets classification method based on the DE-LM joint inversion technique is presented, which requires few control variables and has strong robustness. It eliminates the inaccuracy of the inversion results when an initial value is far away from the truth value by the...

This study analyzes the Chinese trade patterns in low-technology manufactures for the period of 1987-2017. We employ H-index, or the difference between net export capability and symmetric revealed comparative advantage, to assess the trade policies in exports and imports. The results reveal that China...

Using annual trade data during the period of 1976-2016, this study conducted co- integration analysis of the Korean trade pattern in the imports of agricultural manufactures. We find that Korea has comparative disadvantage and trade deficits in the imports of agricultural manufactures. Granger causality...

Iterative methods for searching of extreme controls (satisfying the maximum principle), which are based on the theory and methods of perturbation of necessary conditions for optimality, are suggested. The methods are characterized by computationally stable alternating solution of phase and conjugate...

The application of battlefield sensor networks needs a simple but efficient method to fuse the data and information from multi-sources and generate a cognitive result for commanders. However, it is still a challenge to convert the sensor data into fuzzy concepts so that people can understand easily....

Reliability is an important indicator for evaluating the performance of a parachute system. Verification of reliability often requires a large number of successful system-level airdrop tests, which is often difficult to accept in practice. This paper proposes a reliability analysis method based on Fiducial...

In order to study the relationship between Zhanjiang port logistics and economic development, this article uses data from Zhanjiang port logistics and economic development from 2004 to 2014 to establish an econometric model by using regression analysis methods. The regression equation indicates that...

This paper focuses on how to better build a model from resource aggregation to analytics mining in mainstream cloud computing and big data. Distributed Big Data Analysis Modeling Research, provide high reliability, high security and high efficiency services in analysis and judgement for various intelligence...

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....

KZK equation is used as the base of calculation. When the grazing angle of the source is smaller than the critical angle, the Snell’s law can not be used to determine the progressive direction of the evanescent wave in the sediment that is necessary for solving the KZK equation by using the finite difference...

Building a reasonable green industry evaluation index system is the key to green industry evaluation. According to the connotation of green industry, the criterion of eliminating information duplication index and the criterion of screening the index with the largest quality coefficient of approximate...

This study compares the U.S. import trade patterns in primary agricultural products and agricultural manufactures from 1978 to 2017. We find that the U.S. imports of primary agro-products are subject to import restriction, while that of the agro-manufactures are characterized by import facilitation....

With the development of science and technology, human beings have entered the era of big data and artificial intelligence. How to play the role of fundamental subject has become a topic of concern in military operations research. In this paper, based on the changes of key element in the command and decision-making...

It is important to evaluate the reliability of parachute operators before implementing the airborne mission to improve the mission completion rate and ensure the safety of personnel. This paper draws on the cognitive reliability and error analysis method (CREAM), and establishes a quantitative model...

This paper analyzes the operating mode of the establishment of the sports college students in Hubei Province. Using the method of literature review and logical analysis, under the background of the national policy of supporting university students’ entrepreneurship and the plan of "millions of college...

The reform of physical education in colleges and universities in China has been deepening, and the club model has become an extension of college physical education. The establishment of physical education in colleges and universities not only promotes the development of students' physical health, but...

One of the major strategic interests of Kazakhstan in foreign trade policy is to be included in 50 World’s most competitive countries and strengthen the competiveness of the country on the international market [1]. The issue of competitiveness takes a significant place in the economic development as...

Using principal component analysis, natural breaks, spatial correlation analysis methods, based on the status evaluation, spatial differentiation and correlation of agricultural production of 195 townships in Hainan Island were analyzed, so as to provide a reference for formulating scientific township...

Evolutionary programming algorithm is applied to the problem of image clustering. The solution of the problem is encoded by the symbol coding, and swarm intelligent model is used to search the solution of the problem. In evolutionary programming algorithm, the global search ability is effectively improved...

This equipment’s temperature uniformity during continuous thermal transfer process has a critical influence on the transferred product. The bigger surface area of the roller, the poor temperature uniformity caused when heating starts. This study focuses on the thermal analysis of these electric tubes...

Gas turbine generator sets have complex structures and poor operating conditions, which place high demands on the reliability of components. Aiming at the structural characteristics of gas turbine generator sets, combined with the latest theory of reliability analysis development, based on the characteristics...

In this work the pseudo-potential based lattice Boltzmann method is adopted to numerically study the bubble departure from two heated plates with different temperatures. By doing this the temperature for one plate is fixed while that for the other one is varied to examine the effect of the inhomogeneity...

In AC/DC interconnected power system, when the important AC transmission lines have faults and power supply is broken, the safe and stable operation of power grid will be seriously threatened. At present, one-shot auto-reclose is widely used in high voltage transmission lines. In order to enhance the...