Search all articles

In order to understand the distribution feature of the electromagnetic radiation in nearby regions around the Multi-system mobile communication base stations, a theoretical prediction model of electromagnetic radiation at multi-system base station is proposed, based on the distribution characteristic...

Teamwork become a trend of an effective method to deal with one project because it could gather people from different fields and consolidate their power to solve one problem. But some teams are not effective and cannot generate innovative solutions and great outcome, which waste resources on minimizing...

Currently, geological prospecting entities are facing varying situations. To seize the chances of development, these entities shall continuously enhance their scientific and technological innovation, so as to take the path of sustainable development. From the perspective of macro geological view, macro...

Over recent years, due to globalization and the increasingly fierce market competition environment, organizations have started to capitalize on the significant use of competitive intelligence (CI) systems to provide valuable information resources for strategic decision-making. The process of CI includes...

The potential motivation for families to bear self-housing liabilities is to hedge background risks. Probit and Tobit models are established based on the data of China Household Finance Survey in 2017. The regression results show that households pay more attention to the background risks on the liability...

This paper summarizes integrated simulation technology development status of gas turbine equipment at home and abroad, makes comparative analysis of the deficiencies in the existing domestic research, forecasts the direction of development in the field of integrated simulation about gas turbine equipment...

This paper puts forward a new dynamic round-robin (DYRR) packet scheduling algorithm with high efficiency and good fairness. DYRR algorithm introduces dynamic round-robin concept, that is, the allowance given to each of the flows in a given round is not fixed, but is related with the number of bytes...

This paper mainly explores the application thinking and development of industrial robot technology from the perspective of machine. For the current development of industrial robot technology, if you want to explore and develop mechanical engineering technology from the mechanical market, you must recognize...

Data protection technology based on operation redirection has not been implemented in Android operating system. To achieve the goal of operation redirection, the research of Android storage subsystem needs to be done. By modifying the block device driver and rebuilding the kernel, all block device I/O...

In current study, we intended to, from the perspective of embodied cognition theory, explore the interactions of mimicry, identity similarity and the threat to just world belief (JWB) on the blame attitude of innocent victims. A completely random design of experiment with three factors: mimicry (mimicry...

Modulation principle of dual-polarization quadratu-re phase shift keying signal and polarization-switched QPSK signal are demonstrated and advantages of PS-QPSK are proved in theoretically. A novel modulation scheme of PS-RZ-QPSK signal is proposed in this paper. The scheme reduces transmitter cost by...

China is the first manufacturing country in the world with a great amount of labor force in the industry. Managers in this industry are facing great stress and lower job satisfaction. In this paper, structure and characteristics of occupational stressor of middle level managers in manufacturing are studied....

Searching engines become the major tool for information retrieval of users with the rapidly increasing Web information. Traditional search engines can't completely evaluate users' search aims. It will lead to retrieval quality decline and increased cost. The paper proposed a better personalized image...

The low- power and portable proton exchange membrane fuel cell has the features of quick start, high power density and efficient energy conversion. It is widely used in the small equipment’s power source devices. However, the characteristics of temperature change of proton exchange membrane fuel cell...

The thesis studies the temperature characteristics of 5kW air natural convectional type proton exchange membrane fuel cell. The three-dimensional mathematical model of the proton exchange membrane fuel cell system is established. Using COMSOL software multiphysics simulation modeling, from the aspect...

Image denoising is a classical topic and a difficult problem in the field of image processing. Fourier transform can effectively sparsely represent the smoothing texture part of the image, but can’t effectively represent mutations in the image. The wavelet transform can sparsely represent sharply changing...

Biped walking robot is designed based on the principle of bionicswhich can walk like a human.The biped robot can replace the prosthesis for the disabled, and it can also make the robot better to complete the dangerous or high-intensity work. This robot not only has characteristics of simple structure,...

Turbulence played an important role in the evolution of the seawater energy and exchange. Multi-scale, long-term, fixed-point and continuous sampling is a new research direction in the turbulence observation. This dissertation designed high-capacity and no-vibration data storage solutions aiming at long-term,...

2-(4-((6-bromo-3-nitroquinolin-4-yl)amino)phenyl)-2-methylpropanenitril(7) is an important intermediate in many PI3K/mTOR inhibitors. The compound 5 was synthesized from 6-bromoquinolin-4-ol (1) and 2-(4-nitrophenyl)acetonitrile(4) through five steps including nitration, chlorination, alkylation, reduction...

A Controller based on Neural Network (CNN) is introduced for motion control of UV. With this controller, an on-line studying method can be adopted without the sample data in several sample periods, resulting in high learning speed of the controller. The developed control system was applied to the 4-dimension...

In information age, the traditional service of library management system based on barcode and magnetic stripe has gradually shown their deficiency. Therefore, it is necessary to introduce new and high technology and change the existing service dilemma. The application of RFID technology in the university...

A WSNs(wireless sensor networks) secure strategy is presented by dividing sensing square into grids and utilizing a bilinear map methodology in this paper. Both ordinary sensor nodes and heterogeneous sensor nodes are dispersed in whole sensing area. All those sensor nodes establish their communication...

Web robot is an automated information gathering program that has brought a lot of problems such as information leakage, resource occupation and network security threaten. It is necessary to effectively detect and control the web access comes from web robots. Summarizes the existing categories of web...

In the traditional missile longitudinal loop design, the additional pitch angle feedback, trajectory inclination angle and attack angle outputs may cause the missile control system become unstable and cannot provide the fast and accurate control. In this paper, the author build up a longitudinal loop...

National aesthetic experience is an important dimension of aesthetic anthropology research. Aesthetic anthropology should focus on the combination of theoretical criticism and empirical research on national aesthetic experience in research methods. The experience is placed in the specific national aesthetic...

In order to improve the kill efficiency of the fighter aircraft under the complex electromagnetic environment, the anti-interference capability of all kinds of dogfight weapon is analyzed, a method of the double dogfight weapon fusillade is adopted to improve the kill capability of fighter aircraft....

Bilingual education is the key project of the Ministry of Education and the universities. The international business curriculum is the first bilingual teaching course in universities. Through my experience as a visiting-scholar of international business in Washing State University, I have some new ideas...

To take account of the fact for an automotive hydraulic power steering system have serious energy loss, this paper discusses the configuration and the action principle of a new variable displacement of double-action vane pump, which consists of a floating block and rate compensation characteristics....

Thin films of FeCoB-O were deposited by reactive magnetron sputtering in a Ar + O2 atmosphere with the oxygen partial pressure RO2 varied. The dependence of soft magnetic properties and high frequency characteristics on oxygen partial pressure were investigated systematically. With the increase in RO2...

The multipath fading and interference problems in the wireless communication lead to the link quality decrease severely. However, the conventional frequency hopping scheme cannot solve the problems in an effective way. Adaptive frequency hopping scheme, which is based on the automatically link quality...

Through several examples, describes the harmonic distribution network and its equipment hazards. Harmonics can cause distribution transformers demonstration power loss and additional loss increases, resulting in reduced aging transformer oil and insulation properties, triggering a distribution transformer...

A type of Automatic Mechanical Transmission (AMT) without clutch and synchronizer for pure electric bus is introduced in this paper. The shift process model of this type of AMT is created, and the factors that affect the shift process are analyzed. Based on this shift process model, the shift control...

With the development of China's economy, the problem of consumption inequality has become increasingly serious. This paper sorts out the important literatures of consumer inequality, summarizes the four aspects of the measurement methods of consumption inequality, sub-study, harm and causes, and gives...

Order beauty is the core of graphic design, with its good works follow the rules of th11e performance of the order (such as symmetry, golden section, etc.) consciously or unconsciously. In graphic design, these rules reflect the basic principles for the design geometry whose proper use can make the design...

Through folding screen of dendritic discharge in Fushun Power Supply Company 220kV Gongnong Station, this paper folding screen in the basic process of dendritic discharge fault, argument insulation be affected with damp be affected with damp and gas are the main external cause the folding screen dendritic...

Due to large search space and multiple peaks of autocorrelation function, fast acquisition of BOC- modulated GNSS signal is a time and resource consuming task. In this paper, a novel hardware architecture for BOC-modulated signal acquisition is proposed. The proposed architecture adopts sub carrier phase...

In this paper, an algorithm for designing efficient modulo 2n-3 multipliers is proposed. With this algorithm, we can design the fastest among all known modulo 2n-3 multipliers by applying some simple correction terms. Implemented using 90nm CMOS process technology the proposed modulo 2n-3 multiplier...

Melatonin (N-acetyl-5-methoxytryptamine) is a low-molecular-weight molecule having an indole ring structure and considered as the best antioxidant substances. However, the role of melatonin in low light stress remains unknown. Our study investigated the possible role of melatonin on secondary metabolite...

It is very important to determine the specifications of components of vehicles at the initial design stage. Currently, the researches on torsional stiffness and weight optimization, structural improvement, and vibration and noise have been carried out. However, the structural local optimization of a...

Existing valve spring designs are using the deterministic optimization method without considering the uncertainties in manufacturing and assembling process. We propose to take them into account at an early design stage in order to ensure robustness which is less sensitive to the uncertainties of design...

In order to illustrate the complexity of system parameter identification, this paper takes a simple one order system as an example, which contains an unknown parameter and an uncertain term. It adopts the adaptive method to design the identification rules of unknown parameters, and uses the robust control...

Using the multi-body system dynamic method, a steering mechanism simulation model is built and dynamics simulation analysis is studied. We have built a flexible tie-rod model and attained the natural modes using the finite element software of ANSYS. In this paper, a rigid-flexible coupling steering mechanism...

A kind of integral sliding mode surface method is firstly used in the height loop of airship system based on the assumption that the pitch angle control loop is stable. The expected pitch angle signal is caused by the sliding mode surface which is produced by height error .Compared with traditional PID...

For a long time, the quality and safety governance on agricultural products in Shaanxi is in the situation of “attaching more importance to grain and less importance to fruits and vegetables” so that there are still outstanding problems on quality and safety of fruits and vegetables. Therefore, it is...

In the study, floral buds of two varieties of chinese cherry "Bijie 7", "Zunyi 3" were used for chromosome staining as well as karyotype analysis. As the result shows, the chromosome number of cultivated species "Bijie 7" is 32. The karyotype formula is 2n=4x=32=32m, the ratio of chromosome length (L/S)...

With the continuous deepening of college English teaching reform and the rapid popularization of wireless communication technology, the new English teaching model based on big data technology and Internet technology provides unlimited development space for the cultivation of college students’ English...

With the development of information technology, digital graphics are widely into our life. Whether learning, convey or commercial use, digital graphics monopoly on almost all the multimedia media in the modern art design. Sound art, visual arts and interactive art that developed along with the development...

In order to find a better solution to predict the incoming traffic, grasp the customers’ demand in a short time and design a more scientific and reasonable and adjustable schedule for the online customer service center, this paper proposed a new model based on Erlang algorithm. The algorithm can effectively...

A scheme for WSNs(wireless sensor networks) security is given by dividing sensing circle into sections and using the symmetric polynomials in this paper. Ordinary sensor nodes and heterogeneous sensor nodes are distributed in the circle equally. The keys among sensor nodes are established by utilizing...

In 2010, Nokia Company filed an infringement lawsuit against Shanghai First Intermediate People's Court on the grounds that Shanghai Huaqin Communication Technology Co., Ltd. infringed its patent number zl200480001590.4. Due to the relatively large influence of this case, it has aroused widespread concern...