Search all articles

By reason that traditional GPS location technology can't position items indoor preciously, with the widespread use of the RFID technology, people are taking RFID technology into consideration. However, the features of RFID technology would be an obstacle for researchers and developers. Tag reader can...

In order to establish an available emergency management system, it is important to conduct effective evacuation with reliable and real time optimal route plans. This paper aims at creating a route finding strategy by considering the time dependent factors as well as uncertainties that may be encountered...

Optoelectronic hybrid system is widely used in military field and civilian field. Target recognition is one of the important functions of optoelectronic hybrid system. In order to improve the system’s flexibility and intelligence, expert system is involved into optoelectronic hybrid system. This paper...

This paper established a multi-residue detection method of amides, neonicotinoids, triazoles, heterocyclic, and other pesticides in fruits and vegetables samples by liquid chromatography - tandem mass spectrometry. Using QuEChERS as sample pretreatment method, then extracted by acetonitrile, cleaned...

As part of a study on flight safety, this article introduces the profile of the Chinese civil aircraft hard landing primarily. And then, discusses the special circumstance of the hard landing through an analysis of some flight incident, which needs to pay special attention. The data in the flight data...

Combined with the scanning electron microscopy (sem), mercury injection test and other microscopic experiment technology, technology of high-resolution 3D reservoir characterization based on the CT imaging was used to sduty the microscopic pore structure of tight oil reservoir in Fengnan Area, sourtheast...

In traditional Chinese literature, “poetry” conventionally denoted verse composed in classical Chinese. In the early 20th century, Liang Qichao articulated the concept of the “Chinese nation”. This triggered a modern transformation for the term “Chinese poetry”. This transformation involved not merely...

To study the physical function status of 7-12 years old Li nationality students,the work begins with two kinds of comparison,one is about Li nationality students' physical function in different years,the other is about the comparison of Li nationality students with national Han nationality students,the...

At present, Chinese desakota region, which has attracted increasing attention on the Internet, has been struggling with the chaos of regional construction. Taking the architectural design of Evergrande Football Stadium in the urban fringe of Guangzhou as an example, this paper discusses a typical communication...

In order to improve the neurobehavioral ability and personality characteristics of flight trainees and make them positively influence aviation safety by strengthening their learning during school. 39 undergraduate pilot students of the Class of 2019 were selected, their academic records were collected...

Due to the influence of global warming and environmental change, the meteorological and hydrological elements of the Dagu River Basin have also undergone a series of response changes, which have led to the change of the spatial and temporal changes of water resources. The natural ecological environment...

Administrative apology is becoming more and more common and is constantly improving. In the process of standardization and legalization, some vague contents have appeared, including whether administrative apology is an administrative act or an administrative responsibility. Is the subject of apology...

To study the body shape status of 7-12 years old Li nationality students of China,with a comparison in body shape between Li nationality and national Han nationality students of China, select the average level of 7-12 years students' body shape as the comparative object, the research indexes includes...

Using recoverable anchor cable is a good way to resolve problems about underground space occupation and waste of money . So the recoverable anchor cable applied in engineering has long and meaningful significance .this treatise uses the resistance to plucking of anchor cable in the certain unit dismantling...

The hercynite synthesized at 1600 in protection atmosphere was thermogravimetrically analyzed. The results show that the change of oxygen partial pressure during sintering transforms some Fe2+ in the hercynite crystal structure into Fe3+ but the hercynite structure remained. Based on the modal for hercynite...

This paper identifies the advantages of reforming undergraduate art experimental teaching in comprehensive universities in the context of new liberal arts construction. Three approaches are proposed to address the two core issues of undergraduate art education—the need for multidisciplinary integration...

Based on the data from the 2020 Social Tracking Survey of the Elderly in China, the impact of Internet use on the willingness of the elderly to socialize their old age was empirically analyzed using a binary logistic model. Research has shown that factors such as frequency of Internet use, barriers to...

The jade ritual object system of the Liangzhu Culture, with tremolite jade (nephrite) as its core material, is the prehistoric source of the Chinese civilization’s aesthetic tradition of “using jade to convey the Dao”. This article uses the theory of material agency and sensory anthropology as the methodological...

Cognitive radio (CR) technology provides a new approach to solve the problem of wireless spectrum resource scarcity by allowing secondary users (SUs) to access the licensed spectrum in case that SUs do not interfere primary user (PU). One of the most challenging tasks in CR is spectrum sensing. This...

The safe and reliable operation of power system has been severely threatened by frequent DC magnetic bias when the applied DC transmission system is operating in a single-polar ground loop mode or a bipolar asymmetric mode. Based on SQL SERVER 2012, this paper sets up an AC-grid DC network information...

Haul truck transportation is one of the most important transportation methods in large surface mining operations. It is a key factor that affects the mining productivity and cost effective, however, its accidents rate and dangers are far higher than other types of developing transportation in the surface...

Through engineering example and using the FEM software GTS, water-rich loess tunnel excavation is analyzed without or with the grouting-reinforcement effect and different permeability coefficient of grouting-reinforcement structure. Influence of flow field characteristics and displacement field characteristics...

Pulse-measure instrument has been widely used in our daily life. How to keeping monitoring pulses has risen to a vital important issue. This design uses infrared photoelectric sensor to measure heart rates by detecting blood which will get thicker when heart beats. The system using the AT89C51 microcontroller...

In view of the problems existing in the current teaching platform, such as mutual independence, poor compatibility and openness, a teaching system based on Linux information processing is designed. The teaching platform takes imx6 as the core processor and is designed with multiple information processing...

The database management system of highway slope database can improve the level of data processing, regulate the data collection and improve the working efficiency. Visual Basic as the main development process, with the help of development features of Baidu map API, and use of JAVAScript language to achieve...

Dynamic state estimation of power system is a sophisticated problem since voltage and current phasors under dynamic conditions are nonlinear and hard to be obtained. This paper presents a new power system dynamic state estimation method using Extended Kalman Filter (EKF) based on Phasor Measurement Unit...

Beijing-Tianjin-Hebei Region is one of the areas which haze can be usually seen. The basic reason of haze is pollution, weather and geography conditions, which is only external cause. Pollution remediation and governance haze have become top priority in Beijing-Tianjin-Hebei Region, even in national...

The computational scheme and the basic idea of the Flux-Corrected Transport (FCT) method are studied in the paper. With the numerical simulations of 1-D stress wave, its application to SPH are discussed and compared with SPH coupled with artificial viscosity. The result shows that FCT method is very...

A vessel motion statistical learning based on stored AIS data is proposed in this paper. This paper divide the region of interest into a uniformly sized grid, and analyze the stored AIS data messages according the vessel's position and index the motion information into the unique grid. The sailing state...

In order to meet the demand of consumers shopping whenever and wherever possible to improve the enterprise's sales performance, based on the mode of WAP mobile phone online shopping and combined with the WLAN wireless local area network, this paper designs e-commerce marketing system. The system uses...

In this paper, we make use of the software defined network (SDN) technology’s characteristic of separating the function of forwarding and control to concentrate control function in the control layer (comprised by SDN controllers), and design a kind of communication network architecture for energy interconnection....

The field of art and design has accompanied the development of the country and the construction of a better society has begun to involve a larger scope, profoundly affecting our quality of life and economic construction. At the same time, however, the abundance of materials and commercial production...

Based on ASP.Net technology and SQL Server 2000 database ,Press release management system development of three layer architecture. The paper introduces the ASP.Net technology characteristic, The realization process of system architecture design, function module design and system are introduced in detail....

In order to meet the increasing demand for cost reduction and efficiency increase of engineering projects, lean construction management has gradually come into the attention of enterprise managers. This paper expounds the basic concept and connotation of lean construction theory. Modern intelligent construction...

PHB is similar with non degradable plastic which is widely used in most properties. It is supposed to be an excellent substitute of traditional petrochemical plastics because of its biodegradable character. However, the production cost of PHB is much higher than that of traditional plastic. The substitution...

Based on IWEB corpus, this paper studies the overall image and cultural image of Shaanxi province in China, so as to find out the cross-cultural transmission effect of Shaanxi culture. The significance of the study is to promote a corpus-based study of Chinese cross-cultural transmission and provide...

Faced with the 2019-nCoV outbreak, Chinese universities are required to postpone the 2020 spring semester, and meanwhile meet the requirement of “classes suspended but learning continues” policy, which guarantees the continuous learning for students in the form of online teaching. This paper tries to...

From the theoretical analysis of the primary energy consumption of refrigeration system, energy saving rate and value, combined with the application of specific case, the absorption refrigeration system and the compressor refrigeration system in Combined Cooling, Heating & Power Generation (CCHP) system...

The noise pollution produced by the scraper conveyor affects the working environment seriously. Based on a certain type of the scraper conveyor transmission system as a research object, using the finite element analysis software ANSYS for modal analysis, the results suggested that the natural frequencies...

In this paper the issues of impervious performance based on fly ash clay are analyzed in detail. The specimen preparation experiment and variable head permeability experiment are introduced. The experimental results of this paper can provide reference for practical engineering application of fly ash-modified...

Nitrogen-doped nano-sized titania N-TiO2 photocatalysts were prepared by sol-gel process followed by ultrasonication.The photocatalytic decomposition of methyl orange in aqueous solution was used as a probe reaction to estimate their photocatalytic activities.Applying means of XRD,TEM and UV-Vis DRS...

The No.4 bridge of Erdos Wulanmulun River city is a steel-concrete composite beam of cable stayed bridge. The Twin Towers bridge with double cable planes, tower adopts steel bridge tower. This paper introduces the design of structural steel pylon pier anchor and computational analysis of the situation....

The mathematical model of anti-twist braided wire rope structure is the basis for studying the mechanical problems of wire rope. According to the forming principle of anti-twist wire rope, the structure and dimensional characteristics of wire rope are analyzed. Applying the differential geometry theory...

In the design of switching power supplies of high power factor in communication devices, high-quality PCB board design is the most significant aspect in solution to electromagnetic compatibility and reliability of the entire system[1]. The article introduces the principles and methods of PCB board design...

In order to improve employment rate of local applied engineering colleagues, and enhance the satisfaction of employer for the students, an effective teaching system for the employment of local applied engineering colleagues is built. The system consists of four aspects: the focus on effective classroom...

Existing research has shown that parental mental health issues increase the risk for children’s mental well-being [1][2]. However, little research has focused on supporting caregivers’ mental well-being and sequentially reducing risk for youth. Large-scale data analysis was conducted on the subsample...

We can get conclusion from experimental effect comparison of electrostatic spray and general pressure spray that electrostatic spray can reduce droplet diameter and narrow droplet spectrum scope as well as increase droplet evenness; influenced by electrostatic absorptive effect, droplet coverage rate...

By drilling a large number of experiments, the drilling force, bit positioning error and other data, Using high resolution camera and microscope observation techniques to obtain microdrill digital photos, based on the structural analysis of micro drill, the stress model is established, Based on the combination...

By using the relevant theory of Markov chain, the actual driving data are compressed and reconstructed, and then the city road driving cycle is constructed based on characteristic parameters such as velocity, acceleration and gradient. In the process of constructing the driving cycle, corresponding state...

This paper describes a method for transcribing the main structure of polyphonic music audio automatically by analyzing musical tonality related musicological information. Music transcription is a difficult topic in Music Information Retrieval (MIR) which contains many tasks to recognize all the elements...