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In this paper we propose one method for mechanical vibration signal analysis. The given mechanical vibration signal is firstly decomposed into several intrinsic mode functions (IMFs) by the empirical mode decomposition (EMD) method. The Hilbert transform of each IMF, calculated by a recently developed...

According to original environment destroy of the precious endangered plants, the information system need be built to monitor the endangered plants. Here, using C++, combined with Arcobject soft to establish the management platform system. The main design is data bank design and user interface design....

Two orthogonal modulation optical label switching (OLS) schemes, which are based on payload of polarization multiplexing-carrier suppressed return to zero-differential quadrature phase shift keying (POLMUX-CSRZ-DQPSK) with label identifications of duobinary (DB) label and pulse position modulation(PPM)...

In this work, alloy coatings with different Al and Mg content have been prepared on overhead ground wires for Zn-Al-Mg series hot-dip coatings providing good protection on mild steel surface against corrosion. A reinforced thermal stability is confirmed by DSC thermodynamic curves. Furthermore, the enhanced...

In EDM, especially in small holes EDM machining, there will be a lot of debris produced which is difficult to remove from narrow gap. If the debris can’t be removed in time, it will affect the machining accuracy and efficiency, and sometimes even unable to complete the processing. In this paper, the...

This paper briefly introduced the technical features of real-time database and distributed database. This paper also introduced real-time database platform based on CORBA component technology, and real-time database isomerism cluster which is the core part of real-time database platform. Based on the...

Multipoint low voltage differential signaling (M-LVDS) [1], who’s electrical parameters meet the requirements of ANSI/TIA/EIA-899 standard, is a widely used technology in multipoint interconnection. Through the study of the standard, the wide-swing current mirror technology was proposed to satisfy the...

It is highly important to choose suitable of the foundation in underground engineering. With the engineering, the foundation is made of gravelly soil, which distributed discontinuity and had bad uniformity. Drilling method, dynamic sounding method and deep plate loading test were applied, combined with...

Aerial aluminum conductor (ACSR) as the primary overhead lines products, has been running in the field for a long time. The inevitable corrosion will be affected by heavy pollution environment. Salt spray is acknowledged as the natural environment in most demanding of corrosion, which can make the wire...

DXF format file is a standard format of the ASCII text file, the CAD graphic data is saved accurately. A method of NC program is proposed based on DXF file in this paper, the valid data is extracted from AutoCAD DXF document in the graphics file (including straight line, circle, circular, elliptic arc,...

Along with the rapid development of Internet, network security has become one of high-profile issues in the current life. In this paper, the problem of instruction detection based on artificial immune system model and the key technologies negative selection algorithm(NSA) are discussed in detail, by...

The compatibility, stability and the pyrolysis behavior of aluminum based solid-liquid compound fuel were systematically investigated by thermogravimetric analysis (TGA). The compound fuel lost its 30% weight before the temperature rose to 150 . AP decomposed at 210 and lead to 50% weight loss. The reaction...

Machining learning techniques have achieved great success in anti-spam area. But because of the limitations of these techniques, classifiers derived from them often get attacked by spam senders thus posing a threat to the whole Spam filtering system. This article briefly describes the type of attacks...

Networking radar can make full use of resources and due to the advantages of single radar, making the detection, localization, tracking, identification, and other aspects of the threat of judgment performance has been greatly improved. With the gradual improvement of the Beidou system, powerful communication...

In order to ensure interior target is grabbed by the four-rotor aircraft, the camsift algorithm of OpenCV is adopted, through the recognition of the target, at the same time, the positioning of the aircraft and alignment of target are conducted to achieve grab. The target object is placed on the ground...

A novel Dual-Base Transistor (DUBAT) having a negative-resistance characteristic is presented. This device contains a lateral p-n-p Bipolar-Junction-Transistor (BJT) and a Hybrid-Mode Transistor, and is fabricated on silicon based 0.5 m CMOS process, compatible with the standard CMOS technology as distinct...

The key research of this paper is the algorithm that using pyramids to divide the arbitrary polyhedron. The core idea of this algorithm is as follows. Store the vertices of the outer boundary surfaces of the polyhedron anticlockwise, and store the vertices of the inner boundary surfaces clockwise. When...

With the increase of LNG power ship, the facility and equipment of LNG fuel filling for LNG power ship have become an important problem. LNG filling vessel is a good development direction of LNG filling technology because of its advantages of self navigation ability, safety and reliability, flexible...

A new adaptive signal processing method based on empirical wavelet transform (EWT) is proposed for the fault diagnosis of grounding grid. According to the frequency domain maximum adaptive point is extracted to split Fourier spectrum to separate the different modes. The establishment of a set of wavelet...

Analysis of wind tunnel flow induced vibration characteristic is to understand the high-speed airflow caused mechanism of flow induced vibration, take appropriate to restrain vibration reducing body piercing vibration circuit. This paper introduces the characteristics of flow induced vibration source,...

In order to remove the mixed noise in an image, proposed a new weighted filtering algorithm. The algorithm used 5x5 filtering window, divided the window into sixteen 2x2 sub-windows, took these median pixel of every sub-window as their virtual center, then calculated the weights of these virtual center...

In order to improve the efficiency of freight vehicle and cargo matching, a mathematical model was established, which describes target and the related constraints, and quantum evolutionary algorithm was proposed to solve this matching problem. In the experiment, improved quantum evolutionary algorithm...

At the end of the nineteenth century comes a generation of Naturalism writers whose ideas and consciousness focus on the workings of the universe and the society's disorders, and they also like to have the harsher insight into the reality, especially the distinctive rebelling traits on Sister Carrie...

This paper discusses the problem of road network navigation under polygonal obstacle constraints from an implementation perspective. It implements the problem provided by the 4th ACM SIGSPATIAL GIS Cup 2015 challenge. In the context, it briefly examines some fundamental graph search algorithms and then...

The interception of the hypersonic weapons in near space is the main problem considered in this paper. The designed interceptor is assumed to have much lower speed than its target and very limited maneuverability in the near space atmosphere. To deal with this problem, a two-loop Partial Integrated Guidance...

Through the statistic analysis of the accident data of Heilongjiang freeway from 2010 to 2014, it is concluded the regularities of distribution of the accidents on the Heilongjiang freeway, as well as the factors influencing the security of Heilongjiang freeway system. Then, the evaluation index of Heilongjiang...

Communication networks effectiveness evaluation directly determined whether the communication networks system is successful. This paper investigated the communication networks effectiveness evaluation based on Analytic hierarchy process and fuzzy clustering method. Indicators of communication networks...

Supply uncertainty has a significant impact on the overall supply chain. In this paper, we study the supply chain model of one producer and two suppliers, and establish the expected cost function of the producer and supplier. The change of the total cost of procurement supply chain and the optimal order...

Since the development of campus football, series of activities have been carried out all over the country and have achieved certain results. As the haze fog weather seriously affected campus football, we should take certain measures in face of haze fog weather so that the campus football activities will...

Based on corolla 1ZR electronic-controlled engine, design and research were made on the engine test bench with dismounting and operation function. The equipment can be used in operation teaching area of the auto repair industry or automotive related majors in vocational school. The bench includes the...

With the rise of the Internet, especially the popularity of mobile Internet, internet technology is changing quickly, so logistics enterprises are facing increasingly fierce market competition. The way that logistics enterprises put themselves in the internet thinking, which is used to guide the marketing...

In this study, 64 cases of forced isolation drug addicts conducted a general survey, a number of Minnesota Personality Test (MMPI). The results showed that male drug addicts in Southern shandong region generally had low cultural level;Family economic situation was in general;Divorce rate was higher;...

Richard Stuart Linklateris an American independent film director and scenarist. It takes almost 12 years for him to make a feature film called Boyhood, which mainly talks about a little boy Mason's growth experiences from 6 to 18 years old. Throughout the film, American parents' educational methods to...

The sources of requirements change should firstly be identified in the process of managing requirements, while the collection of information and the measurement of change activities should be conducted by methodology. This paper firstly reviewed the state of the arts of identifying and classifying requirements...

Innovation investment and technological progress have always been the focus of academic circles. This study takes A-share listed companies as the research object, and examines the mechanism and effect of broad money growth, innovation investment and technological progress. The results of the study are...

After years of development, residential property management has shown some drawbacks. Under the background of “Internet plus”, there are some innovative models in property management. How to make better use of Internet thinking and improve the professionalization and modernization level of residential...

The human resources management system is not perfect in today’s SMEs due to relatively backward management mode, insufficient recruitment work, lack of effective employee incentive mechanism, lack of scientific compensation system, insufficient staff training and neglect of corporate culture construction....

The impact of macroeconomic environment and its regulatory policies on micro-enterprise investment and financing behavior has become one of the research hotspots in the company's financial field. This study takes 1754 listed companies listed on the Shanghai and Shenzhen Stock Exchanges in 2007-2017 as...

An innovative method of Problem-based Learning (PBL) in literature teaching has been proposed, consisting of seven equally important stages: group setting, problem identification, idea generation, learning issues, self-directed learning, synthesis and application, reflection and feedback. An empirical...

Psychological crisis of college students means the discomfort or more serious psychological problems caused by not being able to well solve problems. It mainly includes the problem of learning, employment, interpersonal relationship, love and family and life direction. And the origin of the psychological...

Now it is the consensus of universities and colleges nationwide to launch teaching reform through positive innovation and entrepreneurship education. Cultivating the consciousness of innovation, entrepreneurship and practical abilities of the college students and encouraging them to start their own business...

In order to improve accuracy of adding-weight one-rank local prediction, the paper proposed the correlation function to measure the correlation between different phase points, which is used to determine reference neighborhood of prediction center point, and made the values of expressing correlation to...

In order to meet the needs of modern society for the cultivation of talents, college English education pays more attention to the cultivation of students' comprehensive application ability of language. The goal of college English teaching is to develop students' ability to use English language comprehensively....

Mobile ubiquitous technology and IPv6 technology makes it possible to perform the remote control and information transfer by using the mobile terminal, and it promotes the development of the Internet of things. Therefore, more and more intelligent terminal devices need mobility support, such as intelligent...

Customized bus, a new-type traveling mode in China, now has become the first choice for part of city residents due to its quality services. However, customized bus in China is still at the initial stage of exploration. Its route design and vehicle scheduling have not yet formed a unified methodology....

Since the lack of traffic control measures, it is necessary to provide the sufficient intersection sight distance to ensure the safety of driving at uncontrolled intersections. At present, the domestic and foreign design standards and specifications concentrate more on the dimensions of square edges...

In the modern education platform, there are many problems, such as insufficient retrieval accuracy and single retrieval process, this paper conducts an in-depth investigation and analysis of the features of educational videos, combined with the cutting-edge audio transcription technology and text processing...

As the modern construction market and environment encounter drastic changes, a single company alone can no longer manage a complex project and satisfy project owner’s needs. Joint venture (JV) of companies, formed to integrate various expertises, becomes a necessity to obtain competitive advantages to...

This paper proposes an approach to deal with the problem of producing a set of cross-level fuzzy certain and possible rules from examples with hierarchical and quantitative attributes. The proposed approach combines the rough-set theory and the fuzzy-set theory to learn. Some pruning heuristics are adopted...