Advances in Engineering Research

Adaptive algorithms are widely used for acoustic echo cancellation (AEC). In this paper, an efficient switching tactic with advantageous features of NLMS and APA is proposed for AEC application. Switching points are decided by employing a smart voice activity detection scheme based on speech utterance....

Performance evaluation of listed companies can not only display current operating conditions of enterprises, but also reflect future direction of optimization of listed companies. To find a simple, reasonable and effective express listed enterprise performance evaluation method is particularly important....

The numerical simulation of the hydrostatic bearing of the fluctuating load is carried out by Ansys cfx. The variation law of the oil film thickness with the load is obtained and compared with the static formula. It reveals the influence of periodic variation of the load displacement interface table....

temperature measurement instrument is based on thermocouple, with AT89C51 single chip as kernel. Dedicated chip max6675K for cold junction compensation of thermocouple is adopted to perform cold junction compensation to K-type thermocouple and to perform amplification, AD conversion and digital processing...

Multi-criteria evaluation (MCE) is the main method for failure analysis of buried pipeline. In multi-criteria evaluation, the effect of weights on results is obviously. In order to reveal the internal mechanism of the influence of weights, detailed analysis of criteria and order weights were carried...

In order to meet the diverse needs of geographic location scenarios, a diversified location-based smart phone APP is designed and implemented. The app is based on the Android platform, using the Baidu Map API as a tool to achieve real time monitoring through the active push of geographic information.It...

A clear grasp of vegetable price transmission mechanism and the ability to make early warning for vegetable price are important for guaranteeing the effective supply and stabilizing the market price of vegetables. Therefore, it is of great significance to conduct a research on vegetable price transmission...

Acoustic fault diagnosis system of diesel engine is based on the analysis of the measured sound signals and try to extract the fault information contained in the signals which can be able to characterize the fault, and the contents of the research relates to the separation and feature extraction of the...

In this study, a catalyst was fabricated based on Pt nanoparticles on MoS2/graphene (MoS2/GN). The Pt-MoS2/GN was formed from graphite by modi ed Hummers and Offeman’s method, hydrothermal method and polyol synthesis method. The graphene oxide (GO) sheets were synthesized by modi ed Hummers and Offeman’s...

With the development of social economy, the problems of urban traffic has become increasingly prominent. It is necessary to pay attention to the traffic planning. Traffic assignment is an important content of traffic planning. The route choice of the traveler is the focus of traffic assignment. In the...

Aiming at the phenomena of evaporating, emitting, dripping or leaking of offshore oil platform, optical image acquisition device is used to carry out continuous unattended monitoring and effective oil spill identification algorithm is utilized to monitor and identify offshore oil spill. This paper focuses...

In this paper, a soil cutting test rig was developed equipping with two force sensors and a displacement sensor. The equipment could perform measurements continuously at various cutting speeds when the cutting tools worked in the soils. The cutting tool is a rectangle blade. It can moves horizontally...

A novel quantum-inspired approximate dynamic programming algorithm (ADP) is proposed for solving unit commitment (UC) problems. The quantum computing theory is applied to tackle some new issues rising from ADP. In details, the unit states in UC problems are expressed by the quantum superposition. Then,...

Power control unit (PCU) is the controlling center of space satellite power system; it controls the energy that output from solar array and batteries and the power balance of the whole satellite. The circuit board, components and power tube in PCU is working in a long time and in high power situation,...

The design principle and structure of the wireless data transmission devices used for power transformer on-line calibration was described in this paper, design ideas and processes of the low-power hardware and software was introduced in detail. A prototype of the low-power and high anti-interference...

The installation angle determined by the radiation of the sun usually affects the use rate of solar energy. In or-der to find the reasonable installation angle of the PV array, this paper applies data fitting method in PV power generation, and takes a sample of a year’s solar radiation data to analyze,...

Objective: To make a study of the key factors from the Src to the nuclear transcription factor ERK signaling pathway as the target and to explore the role of DEC1 mediated ERK signaling pathway in cervical cancer and its mechanism. Methods: On the basis of screening DEC1 positive cells, the Hela cells...

To gain a deeper understanding of damage evolution in carbon fiber-reinforced plastic (CFRP) composite materials, This paper addresses an application of recently developed Hilbert–Huang transform (HHT) signal processing technique on acoustic emission (AE) signals feature extraction of damage Mechanism...

Due to the defects in composite insulator failure caused by more and more, it is necessary to detect defects in charged composite insulator. Composite insulator were summarized in this paper, detail defect in charged the research situation of detection technology, this paper expounds the several typical...

In this paper, we investigate the oscillation of second-order half-linear neutral dynamic equations with distributed deviating arguments. By using the generalized Riccati transformation and the inequality technique, we establish some new oscillatory criteria for all solutions to second-order half-linear...

Along with the advancement of the construction of ecological civilization, low-carbon economy and low-carbon tourism are increasingly affecting the production and life style of human beings. Low carbon tourism is in the process of tourism development, through the use of low-carbon technologies, promote...

In order to obtain the response of nonlinear structural dynamic system effectively, a linear, time-varying approximation method is proposed in this paper. The technique is based on the replacement of the original nonlinear system by a sequence of linear time-varying systems, whose solutions will converge...

Modified chinese walnut shell is a kind of adsorbent, this study using the adsorption of Cu2+ , Cd2+, Hg +, Cr6+ metal ions modified chinese walnut shell, on the desorption studies. The acid treatment of modified Chinese walnut shell, heavy metal desorption rate is above 90%. Show that H+ play an important...

Failure analysis of underground casing pipe is very important for engineering protection. Failure of underground casing pipe is affected by many factors, and shows very strong spatial variability. Therefore, a predictive model is constructed based on geostatistics, in which spatial variability is taken...

With the development of technology and the progress of life,gas energy play a more important role in our daily use. The transmission process is a key part of the security use of energy. In the transport process,the flame velocity caused by the combustion of enengy have a crucial impact on the pressure...

Bidding is a major event that affects the construction companies’ survival. This article will propose recommendations on the purpose and principles of bidding, the cost control, and how to improve the input-output ratio of the bidding process.

The “passive house” was first presented by Prof. Adamson (Lund University, Sweden) and Dr. Wolfgang Feist (Germany) in 1988. Nowadays, “passive house” has been widely used as a kind of a low-energy consumption and high comfort energy saving building around the world. In 2014, the Passive and Low-Energy...

In this paper, we investigated the performance of multiple elements array system such as receive power, signal correlation, channel capacity, and etc., in the presence of mutual coupling based on microwave network theory analysis. Combining S-parameter method and network analysis, the performance of...

With the rapid development of smart grid, the alarm management method used in the existing smart power communication network cannot meet the logical requirements of the new business in the network. So this paper introduces an alarm correlation analysis method based on Bayesian network. Firstly, the structure,...

Melatonin is a small molecular substance widely found in higher plants and can improve plant resistance to stress ability. To investigate the effects of melatonin on the response mechanism and drought resistance kiwifruit seedlings, one-year-old seedlings of kiwifruit and root irrigation method were...

specific to semi-supervised learning method based on graph ignoring the problem of video correlation in research and application of multimedia, a kind of video annotation algorithm based on related kernel mapping linear neighborhood propagation is put forward. Firstly, the propagation coefficient of...

Legal ontologies have made significant progress during the past 20 years, however, few of these ontologies have gone beyond the stage of advanced and refined prototypes. When building legal ontology, the challenges are not only from the deficiency of the ontology techniques, but also from the inner legal...

Gear box of the gear crack is the failure forms of gear transmission frequently. Wavelet neural network has the perfect theoretical system, clear the algorithm process, the powerful data identification and simulation function. As traditional gradient descending method of wavelet neural network is easy...

As crude oil is composed of colloidal solution, solid hydrocarbons, asphaltenes, and particulate sediments, in the long-term storage process, hydrocarbon mixtures and impurities in crude oil will gradually settle with gravity to form sludge, and underground crude oil reservoirs will be operated for a...

Ni-TiN nanocoatings were successfully synthesized on the surface of 45 steel substrates by using ultrasonic-electrodeposition method. The plating parameters for preparing Ni-TiN nanocoatings were optimized by using an artificial neural network (ANN) basing on the orthogonal test. And the morphologies...

The design of wireless sensor network is growing more mature over time accumulating and technology developing while still is threatened by the future demand. In this paper, the author discussed the wireless sensor network design for the Internet of Things by combining the Internet of Things with the...

Solo operation of multi-unmanned Aerial Vehicle (UAV) will be the trend of future, and operators play a significant role in the UAV supervisory control system, but human may be impacted by all kinds of factors, which may decline the performance of UAV system. In this paper, modeling is conducted for...

The downstream is in the lower reaches of the Heihe River, northwestern China. The first step of the model development effort is to construct a groundwater flow model for the lower Heihe River. The software ‘ModelMuse’ is used to build and visualize the model for the downstream of Heihe River. A groundwater...

Based on the biological control strategy in the pest management, a delayed stage-structured predator-prey model with impulsive control is considered. Using the theories and methods of impulsive delayed differential equations, sufficient conditions are obtained, which guarantee the global attractivity...

To choose cucurbitaceous plant pumpkin as the selected plant and the paper initially discussed on the repair effects of DDT-contaminated soil by pumpkin under a variety of measures. Results showed that the content of DDT in soil reduce significantly after the same repair period. The experimental group...

In recent years, Personal Cloud Storage(PCS) Service like Dropbox has achieved a great business success and has attracted a large interest from academia. However, considering the security of users' data, the PCS applications communicate with their servers by HTTPS protocol, which makes it hard for researchers...

In the energy-saving lamp production, there may be some defects such as no lamp post, too long tail, excess or not enough powder coating. The paper proposes the defect detection algorithm based on tungsten defect features with machine vision. It contains obtaining of tungsten area, filtering, marking...

In order to effectively represent the mechanism of pulsed eddy current testing, the analytical model of harmonic eddy current field above copper strip and plate is worked out in cylindrical coordinate by applying the theory of reflection and transmission of electromagnetic waves and Truncated Region...

The hardware and software design scheme of the single board micro digital relay protection device is introduced in this paper. The hardware platform of the device is based on AM5728 embedded multicore processor of TI (Texas Instruments) Company which has ARM cores and DSP cores. The software platform...

In view of the Minimum Mean Square Error of Log-Spectral Amplitude estimator (MMSE-LSA) noise power spectrum estimation algorithm does not adapt to the actual non-stationary noise and the accuracy of the estimation of prior SNR is not high on the traditional logarithmic domain. However, most of the nonstationary...

According to the meteorological characteristics of deposit a collapse and landslide characteristics, topography, stratum lithology, geological structure and characteristics and hydrogeological conditions of the earthquake pointed out that the landslide happened under the combination of internal and external...

Spam, under a variety of shapes and forms, continues to inflict increased damage. Varying machine learning techniques have played an important role in spam filtering field in condition that ample training data is available to build a robust classifier. These methods include Decision Tree, Support Vector...

Kinematics analysis of concrete hydraulic dismantling mechanical arm is an important part of researching concrete hydraulic dismantling robot’s movement and its controller design. The concrete hydraulic dismantling mechanical arm was taken as the research target. The connection rod coordinate system...

Dark matter is one of the hot spots in the astronomy, but the stand model of the particle physics can't provide a proper candidate of dark matter. There is also a contradiction between the initial little Higgs model and the accurate measurement of weak current. Therefore, the scientists introduced T-parity...

In this study, the seedlings of kiwifruit were used as the research materials to investigate the effects of exogenous melatonin (MEL) on antioxidant activity in kiwifruit leaves in response to drought stress. The results showed that exogenous melatonin effectively decreased the MDA content of leaves...

In order to study the response behavior of engine rubber bushing under high speed impact, improve the simulation accuracy of the whole vehicle, the mechanical properties of rubber bushing was studied. The method of the drop-hammer impact on the rubber bushing was analyzed. A station was built with the...

Put forward the remote monitoring plan of pumping station by introducing the difficulties of the management and operation of the pumping station. The paper realized the transmission of running data and image at pumping station field equipment by using wireless communication technology. The paper introduced...

For the advantages such as clean and environmental,the gas has been frequently used in human production and living.However,the gas explosion also becomes the major threaten for the production safety,the casualties caused by which is mainly due to the buildings collapse.This paper studies the deflagration...

With the rapid growth of logistics, it is important to gain further insight into the strategic benefits of logistics services. The study examines the state of Chinese logistics service industry based on constructing a classification framework for logistics services studies. Finally, it explores key issues...

Ocean energy exploration is one of the hottest spots in the world today. For ocean exploration, most of them need the help of autonomous underwater vehicles, which make underwater wireless charging technology become extremely important research. Based on Ansys Maxwell simulation and assisted by Matlab,...

An algorithm for dynamic reliability analysis of a stochastic structure is proposed based on the theory of Neural Network Response Surface Method. On the basis of First Excursion Failure Criterion of random vibration, the performance function of dynamic reliability is established. Sequential Surface...

For the characteristics of that the center of mass and stiffness centre do not overlap and that presence of translational and torsional vibrations under earthquake to the eccentric structure, MRE damper is used to control the translation-torsion coupling effect of eccentric structure under seismic action....

Double phase change heat exchanger (DHEX) is used combining with steam ejector to build a new steam production. This convenient and efficient system can recover not only the sensible heat of high temperature and humidity gas but also the latent heat of water vapor. Simulation method has been adopted...

This paper mainly studies the crimping process of turbo actuator at passenger vehicle. Firstly design a series experiments with a method of orthogonal test, then study and analysis the crimping results both by single factor visual analysis and multi-factor orthogonal matrix analysis, finally it concludes...

Nowadays, functions of Dam Safe Monitoring Information Management System are unceasingly strengthening and computer network is rapidly developing, while the problem of system and data security is day by day prominent. This article summarized current development situation of Dam Safe Monitoring Information...

Service for manufacturing resources,this paper proposes a manufacturing service operation mechanism based on Spring Framework.And this mechanism uses Apache CXF tools,describes the process of service registration, discovery and invocation.This paper analyzes the service problems of human resources, user...

In the current scenario, the aim of mining operations is to obtain as much usable ore as possible while maintaining a safe and profitable working environment. In open-pit mining and quarrying operations, the stability of slopes is of the utmost importance from both an economic and a safety standpoint....

This paper proposed a solution method for the nonlinear frequency response analysis of structures combining the Nonlinear Single Resonant Mode (NSRM) theory and eigenvector perturbation theory. The NSRM theory assumes that only the mode in the vicinity of a resonant mode has nonlinear behavior, and the...

Shear horizontal surface acoustic waves (SH-SAWS) propagation in layered piezoelectric structure carrying an array of microbeams is studied in this paper. Based on the three-dimensional piezoelectricity theory, the coupling wave equations are obtained and solved by analytical method with consideration...

For analyzing the free vibration of exponentially functionally graded beams a transfer matrix has been developed. The transfer matrixes of exponentially functionally graded beams which need the loop iteration are derived in closed form. The proposed transfer matrix based on the Taylor series expansion....

Closed operation control of section switch and loop switch in distribution network to change the topology structure of the distribution network, thereby changing the distribution of power flows in the distribution network. It can improve the operating efficiency of the distribution network. In addition,...

Space size plays an important role in the properties of confined water. This study aimed to investigate the flow behavior of water confined in a slit pore. Molecular dynamics simulations were acted to analyze the confined water molecules in slit pore. Pressing the plates to form the confined condition...

According to the exact three-dimensional (3D) thermal theory, the steady temperature distribution in a laminated rectangular plate with zero temperature conditions on four lateral surfaces was studied. An analytical method was developed to solve the temperature field in the plate. Firstly, the general...

Plenty of grinding heat will generate in the process of grinding titanium alloy, it will lead grinding burn easily, and finally affect the surface quality of the workpiece. As a result, it is usually to use a lot of grinding fluid in the traditional grinding to reduce the temperature of the grinding,...

Wangjiazhai coking coal, Dahebian gas coal, Pan county lean coal as blending coals in this study, we mixed coke powder and asphalt into the coal samples to prepare formed coke, Therefore, the high strength, low ash, low sulfur and wear-resisting coke was obtained, and the best coal blending scheme was...

The total nitrogen (TN) concentration of Datong Lake has exceeded the standard concentration due to some artificial causes. Inflow from channels may be an effective method to help lower TN concentration and improve water quality. In this paper, a lake-channel network numerical model is set up for Datong...

The effective way to resolve the shortage of agricultural irrigation water resources is the research and application of new water-saving technology of surface irrigation in China. The aim of this paper is to improve the quality of field irrigation and water use efficiency, introduced two advanced water-saving...

The road along the river in general water scouring, scour, soak for a long time, leading to the highway subgrade, slope and the corresponding protection engineering deformation and collapse, gradually lost its original functions.To water damage roadbed stability analysis and control countermeasure research,...

Through NSCT transformation, an image will be decomposed into a low-pass sub-band and K-direction sub-bands, but the sparsity is different for each direction. Therefore, this paper proposes a new way for fusion of infrared and visible light images which is based on improved compressive sensing. First,...

The big data tide is sweeping the globe and becoming a new kind of productivity. The big data technology not only means access to large amounts of data, more importantly is through the analysis and integration of massive data to get the valuable information hidden in the data. And as a new way of thinking,...

Accommodate the problem of the amount of information for the general black and white two-dimensional bar code is relatively small,and the appearance is monotonous, we propose a color two-dimensional QR barcode with logo. This kind of color QR code achieve the purpose of improving bar code to accommodate...

In order to lengthen floating time of foil in the air and improve its scattering abilities, this paper proposes a novel structure of millimeter wave foil. By cutting useless part of foil, its weight is reduced appropriately while its scattering properties as well as floating time are strengthened which...

Aimed at temporary grounding wire detection problems in distribution network, some factors influence the detection precision, on this basis, an electromagnetic transient simulation model for temporary grounding wire detection was established based on PSCAD/EMTDC platform, the model simulates the actual...

A novel implementation of encryption algorithms based on FPGA gates is described in this paper. The encryption algorithm is focused on different FPGA devices with the same number of cascaded NOT gates but have different time delays to signals. The cascaded NOT gates are achieved by programming. These...

There are many different processing for 3D printing. The Slicing 3D CAD model is the pretreatment process of 3D printing. Area filling is the necessary step no matter what kind of slicing way is used. In this paper, an area filling algorithm for 3D printing is developed. In which the cubic polynomial...

A UV curable complex system with vinyl resin and polyurethane acrylate photo-polymerization was investigated. The UV curing process of complex system was traced by IR. Thermal decomposition temperature of UV cured film for various system were determined by thermogravimetric analysis(TGA). And physical...

During the winding construction, the pre-stressed wire wound orthogonal preload frame bears the preloading force applied by the steel wire from top, bottom, left and right simultaneously. Compared with the ordinary preload frame, it bears complex force, there is no obvious distribution rule on the surface...

It was investigated for statistical analysis on impact toughness of welded joints between B610CF and 16MnR steel using shielded metal arc welding (SMAW) and mixed gas arc welding (MGAW) method. Low temperature(-20 C) impact toughness experiments and normal temperature(20 C) impact toughness experiments...

Surface-electromyography (sEMG) is a kind of weak physiological signals. During the sEMG signals measurement, the motion noise caused by body movement can easily affect measurement accuracy. In order to prevent the noise, we designed a method to adaptive noise cancellation combined with wavelet transform...

This paper focuses on a large kitchen fume gas purification device newly designed by numerical simulation using FLUENT software. The velocity distribution and pressure distribution within the whole device are simulated. Particle trajectories of different droplet diameters (5 m, 8 m, 11 m, and 15 m) are...

With the development of the computer technology, the R & D outsourcing is becoming more and more popular for the company area. This paper presents the decision-making model and risk of R & D outsourcing based on supply chain in IT, it discusses the phenomenon of the R & D outsourcing in IT market and...

In the paper, the influence of user trust relationship on recommendation is mainly analyzed, user rating and trust relationship are also clearly defined. Meanwhile, the traditional SVD matrix factorization algorithm is extended to introduce the explicit influence (user trust value) and the implicit influence...

Marine navigation information system is an indispensable modern shipping navigation equipment. With the continuous development of the international shipping industry, new demands have come up in real-time, stability and versatility, etc., which puts forward the higher request to the ship navigation system....

The MIL-53(Fe)/BiOCl composite catalyst is triumphantly man-made by two-step solvothermal method. The MIL-53(Fe) which possesses nanoscale polyhedral structure is loaded to the surface of BiOCl microspheres. 2,4-DCP is regarded as a simulated pollutant in environmental wastewater, at the same time, H2O2...

Based on the study of artificial neural network, the neural model was established for the prediction of germanium extraction from zinc oxide dust by microwave calcination-sulphuric acid leaching. Microwave heating temperature, liquid-solid ratio, leaching time, initial concentration of sulphuric acid...

In this paper, the CALPHAD Helmholtz energy approach, based on the Debye-Grüneisen model, has been used to calculate the thermodynamic and thermophysical properties of fcc Ag (Silver). Through this approach, thermodynamic properties, e.g. heat capacity and Gibbs energy, and thermophysical properties,...

In this paper, the radome of 3/4 power series generatrix is taken as the object of study, and fluid-thermal-structure coupling field of it is simulated and analyzed with sequential coupling method. The aerodynamic load under Ma=6 flight condition is calculated using standard model. Then the finite element...

Transfer functions are commonly used in the analysis of systems such as single-input single-output filters, typically within the fields of signal processing, communication theory, and control theory. Transfer function models is of considerable interest in economics, engineering, biology, and many other...

The SbFeO3 was reduced to obtain the SbFe and Sb2Fe alloys, and the SbGeO3.5 was reduced to obtain the Sb-Ge metal composite powder. The simulation lithium ion battery was prepared by using the SbFe and Sb2Fe alloys or the Sb-Ge metal composite powder as anode material. The analysis of the XRD and the...

Fatigue driving is refers to the driver in a long time continuous driving or physical fatigue condition, and then come into being physiological and psychological function disorder, led to a decline in driving ability. Aimed at the requirements of monitoring on the fatigue driving, this article designed...

Longwall technology is the mass production technology for underground coal mining. Stability of Gate roadways forming Longwall panels is essential to ensure the safety of Longwall mines. Gates and chain pillars between Longwall mining panels are subjected to a complex loading process throughout their...

Light-weight block cipher is the protection of RDIF label and smart card in communication of Internet of things.It's safty is very important..The article analyzes the fault propagation of the traditional light-weight block cipher with feistel structure and proposing a deep differential fault analysis...

The usage of social network usernames in the research of social identity linkage has been proved, especially for the English usernames. However, how to properly connect Chinese user identities by matching the usernames remains to be explored. Since a Chinese user may name or rename his/her usernames...

The limit of methane explosion and the characteristics of methane explosion pressure under different conditions of humidity ( 15%RH 63%RH 92%RH)are studied by using the test system of 20L explosion characteristics in special environment. It is concluded by the study that when the other conditions remain...

In the past two decades, the highway mileage of rapid growth, while the rapid development of highway construction, the adverse effects of natural disasters on road transport infrastructure has become increasingly prominent, Loess region has a special terrain , geology and geological climatic conditions,...