This paper investigates complementary filter de- signed for attitude estimation for low-cost inertial measurement unit and magnetometer. An error allocation strategy which focuses on two weight parameter matrices regulated according to output modulus of accelerometer and magnetometer auto-matically,...

There is a very broad application prospects in incomplete noncircular gear reversing mechanism in the pumping unit, because of its advantage of automatic reversing and intermittent variable speed movement. Incomplete noncircular gears are usually based on empirical formula design, without considering...

In order to reduce the grinding force, cutting heat, grinding wheel abrasion and improve the qualities of the ceramic production, my paper describes the ceramic edge grinding machine spindle with ultrasonic vibration. The order of influencing factors (such as spindle speed, feed speed, grinding amount...

Two experiments of capillary suction and chloride penetration were carried out on the concrete specimens after exposure to natural cooling and spray water-cooling, and absorption coefficient and permeability coefficient were used to estimate the combining influence of cooling mode and temperature. The...

In disaster conditions, people often fall in panic. When the population panics raise to a certain extent, they can aggravate the confusion degree of crowd evacuation, leading to greater casualties further. Therefore, this paper proposes a non-linear dynamic model describing crowd panic propagation, to...

This paper describes a theoretical research on the hysteretic behavior of steel reinforced concrete (SRC) frame structure with angle-steel concrete columns based on the Park tri-linear model. The theoretical results were compared with tests, and main parameters effecting on the mechanical performance...

This paper proposes a hierarchal approach to solving a spraying mission assignment and path planning problem by using multi-quadcopters in an upland area. A mathematical model of the mission assignment and path-planning problem has been established. An inner-and-outer loop structure is employed in the...

In the process of transmission, the various factors can effect easily the multimedia information. The receiver can't distinguish whether the received multimedia data has been tampered. The fragile watermarking can authenticate the authenticity and integrality of the multimedia data. The paper analyzes...

Through three-dimensional scanning technology, the dynamic human body data of young women jogging is obtained. This paper applies Auto CAD plug in, and aims at the wire-frame model of scanning action to carry out a experiment which transforms three dimensions into two dimensions. The sample plate obtained...

It's very crucial for men to have a fit trousers since wearing it is an only option in their daily life. Fit trousers represent comfort and aesthetics. As an essential part of structure in trousers, crotch has deeply influence on the fitness of trousers. This paper focus on the crotch shape of male's...

Vehicular ad hoc network (VANET) is a special kind of Mobile ad hoc network (MANET) which can improve the traffic control systems. Due to the limitation of wireless communications, efficiency and bandwidth are two important issues need to be considered for its design. In this work, we design a secure...

In recent years, various novel services appear in Long Term Evolution (LTE) networks to attract many users but cannot satisfy requirements of users with the available network bandwidth. However, most countries have no licensed spectrum available to LTE networks. To resolve this problem and compete Wi-Fi,...

In recent years, mobile technology and mobile-device have been rapidly developed. Since mobile devices collect and transmit large amounts of private information about users, malicious applications will pose a significant threat to the privacy and property security of the individual. Openness is a crucial...

With the wide application of embedded devices and Internet of things equipment, embedded WEB server has become an indispensable part of its intelligent equipment. In order to select and build the embedded WEB server efficiently, this paper presents the performance simulation evaluation of three kinds...

Due to multilevel inverters can have more levels of output voltage at the output waveform, closer to sine waves, and with small output waveform THD, and low voltage stress, low system advantages of EMI, multilevel inverters are widely recognized, and get a certain application. Based on the analysis of...

To construct Wisdom Safety Supervision and Emergency System (WSSES), it is necessary to solve the three key issues include that the risk prediction based on the regional hazards, the safety information based on the location service, and the wisdom technologies for the emergency-assisted decision. In...

Medical facilities as an important part of urban public service facilities, its spatial distribution has a direct impact on the residents of the convenience of medical treatment and quality of life. Getting the POI data of Panyu District's medical facilities from Gaode map, combining with GIS spatial...

Oblique photography technology is a new earth observation technology which is developed in the international field of surveying and mapping in recent years, and it can reflect the features of the real situation of the surrounding. Besides, oblique photograph can greatly promote the application of remote...

With the rapid development of the Internet and the rapid growth of Internet users, the Internet data is also a sharp expansion. The emergence of cloud computing is a good solution to the large data computing and storage problems, massive data storage and analysis has become a very popular research field....

PMU data is facing with the problems of processing and application caused by the massive, distributed, multi-source, high redundancy existing in data. Therefore, this paper proposes a novel lightweight middleware to process and mine distributed massive PMU data. There employs light sampling parallel...

With the development of computer technology and GPU technology, hardware and software technology has been greatly developed, but a single PC machine still cannot meet the real-time computing requirements of high-complexity scenes. In this paper, we propose a dynamic load balancing strategy based on PBT...

Embroidery is a kind of world-wide art with a long history and a splendid culture. Crafts-making of the embroidery in China can be traced back to over 3,000 years to ancient times. However, modern techniques for creative embroidery is characterized by using embroidery machine instead of traditional crafts....

Synonym relationship is one of the most important relationships for knowledge organization systems. In this paper, we propose a series of methods on synonym relationship discovery based on paired translation information already in knowledge organization systems. The translations amount and the translation...

As number and frequency of flight is increasing, the safety of air traffic becomes important issue of concern. Currently what is used to ensure the safety of air traffic contains air traffic control (ATC), airborne collision avoidance system (TCAS) and automatic dependent surveillance technology (ADS-B),...

1553B system is described and an application layer communication protocol based on 1553B is introduced in this paper. The protocol adopts the 'broadcast-and-echo' strategy, which can provide lots of fault information of the system in many ways to improve the ability of fault diagnosis. The validity of...

Optimal control of batch processes is often implemented in an open-loop manner with an online optimizer. In this paper, a feedback-based optimization method is proposed for batch processes which suffer from parametric uncertainties. Firstly, the optimality conditions and the expression for optimal input...

The analysis of the economic risks of the circulation process is from the perspective of the forest transfer of the out of the party and the transfer of the turn to the party. It is believed that the social risk of circulation is mainly reflected in the increase in the gap between rich and poor residents...

Water conservation is one of the most important functions of forest ecosystems. An efficient assessment on changes in water conservation capacity of a forest watershed, especially for a large watershed is essential for water resources and forest management. In order to simplify the assessment procedures,...

In order to solve the problem of leakage detection in the case of complex conditions and limited training samples, a multivariate classification recognition model was built by using Decision Tree and Support Vector Machine, which has advantages of rapid speed and high efficiency in classification and...

In this paper, the problem of stabilization for Markovian jump systems with additive time-varying delays is considered. First of all, by constructing a new Lyapunov functional with triple integral terms, using new inequalities, convex combination technique and combining with other analytical techniques,...

This article mainly Analyses the Strategy for Water Resources. First, we provide a model to discuss the ability of a region to provide clean water to meet the needs of its population. We pick Egypt to investigate why and how water is scarce in that region. We set the coefficient of the ability as (t)...

Short-term passenger flow prediction on bus stop is an important base and technical support for bus dispatch strategy. In this paper, a new hybrid prediction model including two single models of BP neural network and time series model was proposed according to the periodicity and randomness properties...

The overview of water distribution network information system in central areas of Shanghai was described in this paper. Existing problems were analyzed and further applications of hydraulic model and water quality model to the water distribution network were discussed as well. The development and application...