Advances in Engineering Research

235 transportation accidents occurred in the year of 2015 involving dangerous chemicals were analyzed from the time of the accident cause, occurrence, location of accident. Identify risk factors in the transportation process. It is classified for risk factors, attributed to seven major categories. To...

A chlorogenic acid mediated synthesis of silver nanoparticles (AgNPs) from silver nitrate solution was investigated, and the preparation conditions of AgNPs were discussed. AgNPs could be rapidly prepared in a weakly alkaline condition, and the resulting AgNPs had an average size of about 35 nm. When...

This article do research into experimental technology of corrosion simulation at high temperature and high pressure and has formed an integral set of simulating experimental device basing on the technology. This technology includes injection system, simulated reaction still, research on vapour-liquid...

There are a lot of converters in the DC microgrid. These tightly regulated closed-loop converters may cause stability problem of bus voltage when used as a load. In order to improve the stability of the DC microgrid, a novel stabilization method based on exact feedback linearization is proposed. The...

This paper takes the plastic waterproof junction box production line as the object of study. It analyzed enterprise production status, and then drawn the fuzzy value stream status map by using the value stream map and the combination of fuzzy triangular number method. It improved these problems existed...

In order to understand the mechanical characteristics of foam concrete backfill steel corrugated pipe culvert, this paper uses numerical simulation to analyze the mechanical characteristics of foam concrete and pipe culvert structures with different backfill methods. The results show that when using...

In order to investigate simultaneously removing effect of iron powder(Fe(0)) on trichloroethylene (TCE) and hexavalent chromium (Cr( )) , Fe(0) was used to treat TCE and Cr( ) of polluted groundwater at room temperature and Features on the surface ofÿFe(0) surface were checked by Scanning Electron Microscopy...

The accurate and available engine rotate speed signal is quite essential to engine control, fault diagnosis, etc. This paper analyses the parameters optimization towards common processing methods of engine rotate speed, aiming at internal combustion engine closed-loop control. Basing on the Matlab/xPC...

Commercially pure titanium and stainless steel sheets were welded using resistance spot welding with interlayer of Nb. The interfacial microstructure was observed, the effects of welding current on nugget diameter and tensile shear load were investigated deeply. The results show that the interfacial...

Based on the analysis on the content and spatio-temporal distribution of volatile phenol, this paper assessed the pollution level, pollution source and source strength of volatile phenol in Jiaozhou Bay 1983. Results showed volatile phenol contents ranged from 0.50-3.38 g L-1 in the whole year, and were...

A type of truck crane frame was studied and the three-dimensional model is built by CATIA, then the model is imported into ANSYS Workbench to analyze the frame. By analyzing, the results of stress and deformation are got in 2 typical conditions; meanwhile weak parts of structure are pointed out, like...

The mean-field theory is used to study polarization behaviors in a ferroelectric thin film described by the transverse Ising model. The dependence of average polarization and layer polarizations of the transverse Ising film with two surface layers on the Curie temperature or transverse field is discussed...

Volcanic ash cloud can threaten the safety of aviation transportation. The current detection of the volcanic ash cloud mainly depends on the remote sensing images. Independent component analysis (ICA) and support vector machine (SVM) have very strong complementary to each other in the volcanic ash cloud...

To analyze the change of droplets number caused by collision and coalescence in gas/droplet two-phase flows, a stochastic model was established, in which the collision probability of two drops with different sizes was derived and the stochastic process theory was introduced to describe the change of...

This paper presents a video-based method to extract breathing waveform from the upper body movement associated with breathing, which is based on Eulerian Motion Magnification and principal component analysis (PCA). Using our method, we are able to obtain the breathing waveform which contains different...

The cold gas dynamic spray was used to prepare the Al2O3-Cu alloys coating on Al, Cu and steel substrate in this study with the mixture of pure Al2O3 powder and pure copper powder. The influence rule of coating performance for different ratios was analyzed. The results showed that at a relatively high...

Aiming at the measurement characteristics of the laser radar scanning system, the relevant error source analysis is carried out, and the main factors influencing the measurement error are listed. At the same time, the influence of the error source on its data processing and measurement accuracy is discussed....

Nowadays, the problems related to the generation of certificates through conventional techniques have given rise to a vast variety of certificate generation systems, which have also helped to cut down on the time required to generate certificates. Certificates are the part of institutions/organizations...

Specific Emitter Identification (SEI) is the method to identify the individual radio emitter using the transmitted signals' characteristic called Radio Frequency Fingerprint (RFF), which are originated from transmitter imperfections. A novel SEI approach to extract transient fingerprint features of energy...

This paper introduces the structure and principle of the capacitive corn moisture sensor, and focuses on the mathematical model and the equivalent circuit of cylindrical corn moisture sensor, also conductes a preliminary analysis of the factors affecting maize water measurement accuracy, provides a theoretical...

It briefly introduces the characteristics of prestressed CFRP plate and the new reinforcement bridge technology of prestressed CFRP plate and conducts a theoretical analysis on the principle of reinforcement design in this paper. ZhuJinDu Bridge is provided with reinforcement design by the prestressed...

This In order to solve the problem that the spatial matching is difficult and the spectral distortion is large in traditional pixel-level image fusion algorithm. In this paper, we proposed an block-based compressive sensing image fusion method based on particle swarm optimization algorithm. We get the...

Using morphological Charts to extract product parts as design variables is a widely applied method in traditional Kansei Engineering so far, but this method has low practical value for Kansei design. Taking morphological characteristics instead of product parts as extraction principle, a breakthrough...

With the development of computer technology and communication technology, computer network will increasingly become important information exchange means, penetrated into every field of social life. Therefore, realizing the network vulnerability potential threats and various security problems of the objective...

Nowadays, many applications are too big to keep their own security. Static analysis is a technique which can be used for ensure the safety of large programs. However, frequent calls to libraries and frameworks bring a lot of difficulties to the analysis. Researchers propose the specification inference...

A swirling-style propellant water ramjet model, which was established on the base of a particular model of column-style propellant water ramjet, was employed to numerically simulate the influence on engine performance at difference inlet velocities. The three-dimensional geometrical model was established...

The finite element (FE) technique is applied to conducting the strength design and optimization of the vertical pipe fixed supports in a super high-rise building. The FE model of the fixed support is created and the stress distributions are calculated by using ANSYS. In this paper a new method is given...

The construction process of project group is full of uncertain factors, large numbers of resources are required, and it is easy to lack of certain resources. Based on programming theory, the project group resource reallocation optimization model is established when supplied resource quantities are insufficient....

The common arrangement form of engine support position includes three-point mounting or four-point mounting. In this paper, the form of symmetric three-point mounting was adopted, and 5 groups of numerical values were respectively used. An engine moved to the third supporting point through the support...

Reversible logic is playing an important role for low power computations. In today’s trend it is essential to optimize the power for portable devices which can be achieved through reversible logic computation. The low power computations can be performed using Reversible Logic Gates (RLG) which forms...

This paper analyzes the difficulties in construction and the reasons for the leakage of biting piles in engineering, and proposes anti leakage treatment plans, including groundwater level control technology, construction process control technology, leakage blocking scheme between biting piles, and anchor...

In the context of the new era, the development of renewable energy is of great significance. Its utilization not only alleviates energy shortages but also significantly reduces environmental pollution. With the widespread application of digital technology in the power system, higher demands are placed...

Based on the topological theory and MATLAB program, molecular connectivity index (Xi), molecular shape index (Ki), electrotopological state index (Ei) and electro-negativity distance vector (Mi) were calculated for 117 nitrogen-containing polycyclic aromatic hydrocarbons. A eight-element regression model...

A HVDC supplementary controller is designed based on Extension control method, the controller can be divided into different feature status depending on the magnitude and speed of the system frequency change, to take a different calculation method to control the output in different measurement modes quickly...

In recent years, power line carrier communication (PLC) have been a focus once again, which is mainly achieved by orthogonal frequency division multiplexing (OFDM) Currently. OFDM is a multi-carrier modulation technique with densely spaced sub-carriers, that has gained a lot of popularity among the broadband...

Along with the development of modern warfare, the emergences of various kinds of low-altitude and slow-speed dim targets and sea-surface slow-speed dim targets makes the defensive radar be faced with increasingly severe tests of detecting in clutter; currently, it is difficult for a regular single radar...

The successful launch of CSI 300 stock index futures on the market improve China's capital market, the operating efficiency of the market and provide investors a risk management tool which can hedge and arbitrage. The existing time of CSI 300 stock index futures is short, so the existing research is...

Aiming at wide variations in loads and moment of inertia of the machine tool position servo system, the position loop controller is designed based on RBF neural network control and predictive control. The mathematical model of AC PMSM is established. The predictive model is designed based on controlled...

Hot pressing method although can effectively improve the density of the rapid hardening slice powder, but due to the rapid hardening slice heat ultrafine microstructure of aluminum alloy powder body approximately in to static pressure state, under the limited high loading stress condition, high temperature...

A three-dimensional SCR reactor model of 660MW coal fired unit was established by using FLUENT coupled detailed reaction kinetics. The effect of different ammonia injection strategies and the specific surface area of catalyst on the denitrification reaction were studied by the model. The results show...

A large number of malicious apps focus on stealing personal and financial information. It is very important to detect such apps as early as possible in order to prevent subsequent crimes. DroidBox incorporating TaintDroid detects leakage of private information, IMEI (International Mobile Station Equipment...

The requirement and the status of the detection of the moving stick are introduced, and the Hough transform and the canny gradient are introduced to identify the movement of the object in the scene. By extracting the Canny gradient of the moving object, the Hough line detection is performed on the gradient...

In order to investigate the effect of moisture content on cohesive subgrade soils dynamic resilient modulus, a series of dynamic-triaxial test were carried out. Based on the matric suctions measured by the filter paper method, the relationship between dynamic resilient modulus and matric suctions were...

The paper presents the study of epizootological situation with demodicosis infestation of dogs in the Central Chernozem region of the Russian Federation from 2010 to 2017. The retrospective and operational analysis of veterinary reports of public and private veterinary institutions was carried out. In...

In this paper, we solve multi-objective programming problems with equilibrium constr- aints by means of homotopy interior point algorithm. We also prove the global convergence of this homotopy interior point algorithm under assumptions. Moreover, the results of the numeric example shows that this method...

A simplified linear model is studied for the complex nonlinear model for a class of saucer-shaped aircraft in this paper. Then a feedback control law is designed to achieve the tracking of given attitude angle. What is more, a kind of gain adjusting law by fuzzy changes with errors is designed in order...

Lithium batteries recently become recommended power sources due to its advantages which have high specific energy, high capacity, long cycle, etc. The development of lithium batteries pushes the development and production of electonic equipments to the next step. As the effect, the demand for electronic...

The aim of this paper is to analyze influence of inertia moment on dynamic characteristics of mixing system. First, the basic structure of mixing system is introduced, and the working principle of mixing system is illustrated. Second, the simulation model of mixing system is established based on AMESim...

The ratio of dependence of the elderly to the productive age in Indonesia continues to increase which correlates with the need for facilities. One of the facilities needed and commonly used together with the productive age is the bathroom. Most Indonesians have permanent bathtubs and toilet squats that...

The present review gives an overview of the highlights of more than 10 years of research on formation mechanism of ordered oxide structures (nanotube layers, hexagonal pore arrangements) that are formed by self-organizing anodization of metals. In particular, we address the questions after the critical...

Aiming at the current Web service selection methods do not take into full consideration the effect of service component’s dynamic on the performance of service-oriented application system, a credit-aware per-service method to service selection is proposed in our paper, which introduces credit level into...

Currently, the increasing scale wind power paralleling in grid leads the range and frequent degree of thermal power unit regulating system action become larger than ever. So both the units' regulation performance requirements become higher and units' regulation system equipment performance faces more...

There are different types of the inside-the-pool flooding: dividing the deposit by injectors into lines, circles, creating a central row of dividing injection wells with several rows, going across, and those that are combined with marginal flooding. The injector pattern depends on the field's geological...

A study is carried out to investigate the influences of compounding process and surface treatment on nanometre-sized TiO2 filled polystyrene. The compounding process is discussed with a torque rheometer. The TiO2 filler is surface-treated with a liquid titanate coupling agent. The effects of coupling...

A high-order nonsingular terminal sliding-mode observer is presented for rotor flux of induction motors based on field oriented control systems in this paper. A terminal sliding-mode manifold is chosen for the observer and the nonsingular control laws are utilized to stabilize the observer. The high-order...

In order to improve the performance of the tracking system, this paper discusses the trajectory tracking of the sun and tracing to the source of the sun. The experimental results show that: The automatic tracing of sun trajectory scheme runs smoothly without the interference of light source, but has...

The measuring and monitoring of the support reaction of the aerial work platform is an important method to prevent its overturn. In view of the fact that the turntable is in a rotational movement during the whole process, it is easy to cause the tangling of the signal cable if using the traditional wired...

In order to alleviate the stressful tension caused by the imbalanced power flow along the transmission and distribution feeders, the electric power utility in Indonesia may want to implement the trends of microgrid and VPP. As a result, the goal of this study is to develop a paradigm that captures the...

In the survey stage of nuclear power plant site, it is necessary to consider the impact on nuclear power station brought by the aircraft. The most serious consequence is the fuel leak. The fuel combustion process is divided into two stages of deflagration and pool fire. Therefore, this paper studies...

In order to clarify the differences of partial arc propagation process and flashover process between uniform and un-uniform contaminated insulator strings, experiments of flashover characteristics on uniform and un-uniform contaminated insulator strings have been made in this paper. The result indicates...

The biological effects and cytogenetic damage induced by diesel on root tips cells of Scirpus triqueter explored in this study. The results showed that the root length and weight decreased obviously with diesel concentrations increasing. The mitotic index in root tip cells of seedlings were increased...

Increasingly high degree of complexity for the equipment, resulting in the issue of failure prediction more difficult, based on the analysis of the failure prediction method, elaborated to improve the accuracy of fault prediction methods from five aspects. Finally, make a summary analysis of it.

In this paper, a method of image quality assessment based on visual regions of interest and Structural Similarity(SSIM) is proposed through combining human visual interest regions and structural similarity. In this algorithm, we firstly use the SSIM to separately assess those interest regions, and get...

Put forward a circumferential configuration non-circular cross-section discrete rod and it’s charge structure. The results of numerical simulation show, by adjusting discrete rod and matching detonation loading, the charge circumferential integration of the discrete rod can dispersing along the radial...

The landing-type lifting pole with single luffing jib is researched and manufactured as a kind of construction equipment used in erection of large-sized iron tower in transmission line. The numerical calculation by finite element method was conducted aiming at luffing jib of landing-type lifting pole...

To achieve distributed parallel computing of network analysis in the multi-dispatching and control system, under the architecture of existing smart grid dispatching and control system, the general requirements of data communication based on network analysis applied to wide area distributed parallel computing...

The existence of the COVID-19 pandemic has made the development of information and communication technology so rapid that it fosters new habits in the community to work from home and take advantage of the coworking space concept. Vocational High School students need to learn pair programming that supports...

Structural health monitoring of large civil engineering has been a hot point of research in the world these years. As one of the key parts, design and implement of structural vibration data acquisition system in actual projects is more and more valued for people. Monitoring technology as the core of...

According to the noise barrier structures of high-velocity railway,the structural character was systematically analyzed.In this paper, the simulation calculation method is adopted to analyze the impulsive wind pressure acted on the noise barrier of inserted based on ANSYS software.Different influence...

The optimum conditions for the enzymolysis were as follows: temperature 50 , pH 6.0, time of hydrolysis 5h, the optimum conditions were as follows: temperature 50 , pH 6.0, The amount of enzyme was 6000U / g, and the degree of hydrolysis of the collagen deer velvet collagen was 15.49%. The molecular...

Fiber images taken by optical microscope tend to have poor focus, uneven brightness or blurred edge. Using mathematical morphology method, such as open or close operation to preprocess the fiber image, which is likely to lead to distortion of the edge of the fiber image and affect the subsequent separation...

At present the nonstandard power quality monitoring systems have caused many problems such as high construction and maintenance cost and poor interoperability. In order to implement a standardized power quality information platform for multisource information fusion, IEC 61970 and IEC 61850 are designed...

The Intelligent Self-Service Cabinet is an important device which developed for convenient delivery of fresh distribution fields. In order to meet the needs of the users, this paper is based on Cortex-M3 to cater the design requirements of the Intelligent Self-Service Cabinet. The Host-Controller communicates...

The paper proposes a method to design ANN dynamic inversion controller through online ANN compensating inversion error. It mainly aims at evident shortage of dynamic inversion controller of UAV. A single hidden layer ANN structure is constructed and the stability of the whole closed loop system is proved....

To ensure the safety of constructing large coal bunkers above the goaf of coal mines, the probability integral method was used to predict the residual settlement deformation of the ground surface, and the foundation stability of the newly built large coal bunkers was evaluated. The evaluation concluded...

With the vigorous development of motorsport, the rear wing, as a key component to enhance the aerodynamic performance of racing cars, plays a decisive role in the competitive performance of vehicles. This paper systematically studies the core elements of the design and selection of the rear wing of racing...

"High-altitude anti-falling device"is a set of automatic device preventing high altitude objects from falling. This automatic device mainly consists of three parts, the falling object detection and recognition system(ODRS), the action control system and the pneumatic structure system. It is a good combination...

Luminescent poly(methyl methacrylate) (PMMA) porous fibers were prepared by electrospinni-ng technology using a binary solvent system of EA/DMF and DCM/DMF. The effects of the ambient humidity, content of rare earth complex (Tb(phen)L3) molecular weight of PMMA, and the proportion of E-A/DMF (mass ratio)...

With the development of IGBT and GTO, more and more high-voltage and high-power devices applied in the power system.In terms of stability, harmonic, response speed,the superiority of STATCOM is more far than SVC.In order to make STATCOM play better results,the key is in controller design level.Through...

An analysis of UHF 3dB coupler which is based on the even-odd-mode theory is presented, in which we present a brief description of the even-odd-mode theory and its application in coupled strip transmission line. In particular, as the rapid development of the stimulation technology, we introduce a simple...

As society and the technology develop, most of the power to be used might be electricity. An unavoidable reality is that fossil fuels such as coals are deeply embedded in our energy system. Take China as an example; about half of China’s coal gives 80% of the country’s electricity supply (Heinberg, 2010)....

To accurately predict the brake performance of hydrodynamic retarder, the computational fluid dynamics (CFD) is used to transient numerical simulation of liquid-gas two-phase flow in this paper. It obtained the distribution characteristic of pressure and velocity, and calculated the braking torque. On...

Cold-formed steel built-up columns are the main components in cold-formed steel framing residential buildings, however, there are short of reliable experimental and theoretical study on cold-formed steel built-up columns in China. Technical code of cold-formed thin-wall steel structures (GB50018-2002)...

For the huge amount of image data, high transfer rate, high real-time requirements of the imaging system, this paper proposes a high-speed image data acquisition and storage system based on TMS320C6748 DSP, with the use of uPP interfaces to capture images from the FPGA in real time, using GPIO and UART...

This paper researches the influence of laser rapid prototyping process for titanium metal crown. molding quality using the microstructure. The results show that laser rapid prototyping technology can form a uniform, defect-free titanium base crown. And than the thickness of choice is crucial, relatively...

In consideration of some problems including the independence and invariance of components, no noise assumption and the uncertainty of the final solution as well as the inconsistency of the features of remote sensing data in traditional independent component analysis (ICA) model, we put forward a blind...

Based on the multi-innovation least squares algorithm and the optimal Kalman filtering method, a new multi-innovation self-tuning Kalman filtering algorithm is presented for systems with unknown model parameters. It avoids the flaw of classical Kalman filter which needs to accurately know the model parameter...

The relationship between the robot and visual measurement system (VMS) fixed on it is a critical part of the robot visual measurement system (RVMS). This paper presents a method to calibrate the robot and the VMS fixed on it without the traditional hand-eye calibration procedure. In the paper, the last...

To overcome the loading and control difficulty in the traditional substructure shaking table tests, an experimental technology loading the experimental substructure with active mass driver device (Abbreviated as AMD) under multi-parameter control (Abbreviated as MPC) was presented and analyzed in this...

According to the marine data types are complex, the format is different, in this paper, the relevant visualization techniques and representative methods are studied, and the visualization of marine data is compared and analyzed. The visualization of marine data spatial information based on GIS technology...

Coarse-grained soft rock fill materials can deteriorate due to water-rock interactions, potentially compromising the performance of the embankment subgrade. The dilatancy of this soft rock, as an important proxy to evaluate shearing response, was investigated in this paper. A series of large-scale triaxial...

The research on photovoltaic power generation is an important part of clean energy .In order to improve its efficiency, this paper proposed an adaptive variable step - length hysteresis control method, based on the traditional MPPT control. The duty cycle disturbance step size is determined by analyzing...

In the lunar rock drill mission, the drill bit design is restricted by the environment and system load. As the executive unit of the drill bit, the cutter and its material decides the drilling system’s penetration performance. In this paper, a new kind of surface set PCBN drill is developed, and the...

In this study, the flocculation and sedimentation performance of thermophilic activated sludge with single and multiple dosing of trivalent aluminum (Al3+) were studied. The thermophilic activated sludge samples were cultivated in sequencing batch reactors at 55 °C. The dosages of Al3+ were 0.125, 0.5,...

The signal source based on signal injection scheme which is the main equipment of fault location in distribution network injects AC constant current signal to fault lines. However, its constant current value can’t be changed according to characteristics of lines. This paper proposes a high power signal...

Malaysia is a major producer and exporter of palm oil in the word while China is a major importer and consumer. In order to study the relationship of the palm oil futuers prices between Buras Malaysia Derivatives (BMD) and Dalian Commodity Exchange (DCE), this article used a series methods such as correlation...

Co-disposal of sewage sludge in cement kiln is an economic and feasible method of resource utilization. The industrial test of co-disposal sludge was carried out in Beijing Taihangqianjing cement limited company. The semi drying sludge as a raw material was transported to the decomposition furnace for...

Recent technological advancements have led to the production of microcontroller with wireless communication functions, which enable the integration of physiological data collection, data processing, and data transmitting. Blood pressure is an important physiological indicator which should be measured...

Artificial neural network is composed by a large number of processing interconnected unit. It is a nonlinear, adaptive information processing system. It has self-organizing, adaptive and self-learning ability. And can be used to calculate complex relationship between input and output, thus it has effective...

This paper reports on experience of using a feed additive based on proteinates of zinc, copper, manganese and selenium in various dosage. The studies have shown a positive influence on metabolic processes of cows during the increasing of milk production. Application of the feed additive facilitated increased...