Advances in Engineering Research

The action of concentrated loads on spherical shell has been widely studied. The solution for a concentrated normal force was first obtained by E. Reissner in 1946 by using the classical theory of shallow shells. This problem was also considered by S.P. Timoshenko (1946), Stanislaw Lukasiewic (1979),...

Traditional old boiler is energy-intensive and highly polluted. Circulation fluidized bed boiler (CFBB) is characterized by environment-friendly, high efficiency and energy-saving. Hardware of Combustion control system for small-size circulation fluidized bed boiler is presented in this paper to transform...

Vehicles detection has a great significance on traffic congestion relief, traffic accidents prevention and treatment. This paper proposes an improved Gaussian mixture model (GMM) to detect moving vehicles because GMM always detects background for foreground in complex environment. The new algorithm combines...

This paper proposes a design scheme on the low-noise electrical tuning amplifier circuit of receiver front-end. According to key indicators to be achieved, it made a overall simulation design of the front-end amplifier by ADS, focusing on the analysis of the characteristics and parameter selection method...

The rapid rise of the mobile payment in China has brought a new round of opportunities and challenges. During this process, the safety problem becomes an important issue of the payment power in the future in China. Based on the general definition of risk, the paper considers the special need of tourism...

In order to provide high-quality service, companies must meet or surpass their customers’ expectations while also ensuring that their products are delivered on time and accurately. Higher education sustainability depends on students’ evaluations of service quality, and student happiness is becoming increasingly...

This Medical needle plays an important role in modern clinical medicine. The penetration and pull process of medical injection needle was simulated by FEM software Abaqus, and the equivalent stress and strain were analyzed. Self-developed mechanical loading equipment was adopted to test the penetration...

Green foams/aerogels based on nanocellulose derived from natural plant fibers have been extensively studied because of their great potential for applications in energy adsorption, energy storage, template, thermal insulation, sensing, and water purification. Progress in fabricating foams/aerogels using...

The article considers the mathematical model for calculating the magnetic circuit of a multipolar synchronous motor with fractional single-toothed winding and permanent magnets. The mathematical model is based on the technique of the tooth contours conductivity. The obtained model makes it possible to...

This paper presents an automatic traffic-sign detection and recognition algorithm based on sparse representation. Our system consists of several steps. In the first stage, we detect potential traffic signs using the most remarkable feature-color-extracted by HSI model, which is immune to lighting changes....

The combination of free planes in the corner of an underground chamber is complex. If the fractures cross the roof and walls, or floor and walls at the same time, a complex key block may exist. The theorem of finiteness in the classical block theory applies only to the convex block, and not to the non-convex....

In order to improve the accuracy and efficiency of no-reference blur image quality assessment based on General Regression Neural Network. We choose Simulated Annealing algorithm to optimize the method. Using LIVE (Laboratory for Image & Video Engineering) database as the initial study database. 174 images...

It is an important engineering problem that affected by the environmental factors, the performance of aircraft structure of carbon fiber reinforced polymer (CFRP) under the Marine environment has depredated; and it is an important means of analysis of CFRP material degradation by accelerating aging mechanics...

In the research of multi-spectral radiation thermometry, temperature measurement depends on the line shape of spectrum radiation remittance. However, in the actual measurement, the combustion, explosion and gasification on special occasions can produce some particulate matters which can create the phenomena...

A total of 60 cylindrical specimens with density of 425 kg/m3, 525 kg/m3, and 625 kg/m3, subjected to uniaxial compression were tested, under four different strain rates ranging from 10-5/s to 10-2/s. 15 specimens designed and casted on the same condition were tested for every set of case. The mean and...

Vibration of the working bodies decreases the force of traction resistance of the plough for ploughing the soil. Vibration is spontaneous and forced. Spontaneous vibration comes from the variable resistance of the soil, and forced vibration requires add

With the success of Shenzhou spacecraft rendezvous and docking with Tiangong-1 and Tiangong-2, the future tasks of the space station such as space garbage clean-up requires the control of spacecraft attitude to be more and more accurate. Because of the high cost of the attitude control and regulation...

Engineered Material Arresting System (EMAS) is a new type of soft ground arresting system that can safely arrest the overrun aircraft in an allowed distance without injuring aircraft passengers and damaging aircraft landing gear. When exposed in the outdoor, the temperature and humidity will have a great...

Therelationship between the energy of a high-speed proton when impacting onthe N-4 nuclear emulsion plane perpendicularlyand its range in the emulsion was investigated using classical SRIMMonte Carlo programand curve fitting method. A definite analytic expression was derived from this simulation with...

In the paper, we develop a model of temperature of tub water with energy conservation law. Meanwhile, we make a best way that can both keep temperature fixed and save water consumptions. First, we individually consider the heat exchange in three situations, which separately correspond model 1, model...

According to the characteristics of pharmaceutical practical instrument analysis course, and combined with the content of experiment teaching as well as the modern multimedia and network technology, to explore a new instrument analysis course teaching model which meets the characteristics of pharmacy...

The computer professional is an excellent major which reflects on the practice. To cultivate talents who of innovative abilities which are in line with the requirements of the era, strengthening experiment teaching and practice teaching is particularly important. What’s more, it is most important to...

Alloy composition of thin strip Solidification Microstructure Effects of larger, Al-8.5Fe-1.4V-1.7Si and Al-11.7Fe-1.15V-2.4Si alloy. At 20 m / s and wheel line speed and 0.7 x 105Pa jet pressure difference process thin slices of tissue, can see in addition to changes in grain size and a-Al grain accounts...

Tert-butyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate (1) is an important intermediate in many biologically active compounds such as crizotinib. In this work, compound (1) was synthesized through three steps, using tert-butyl-4-hydroxypiperdine-1-carboxylate...

To solve the disadvantages of pressure relief devices in water supply system such as pressure relief valve and throttle orifice plate for high fault rate and high operation costs, the new type of the annular tube device was proposed, which has the advantages of simple structure, high reliability and...

Concrete supplier evaluation and selection in the building industry is one of the most critical processes for achieving a successful supply chain. In the past, technique for order-preference by similarity-to-ideal solution (TOPSIS) method has been extensively applied to the supplier evaluation and selection...

In this paper, a simple sliding mode control scheme, in which only the angular velocity and attitude angle have to be measured, is proposed to solve the non-minimum phase problem for a class of simplified linear model of saucer-shaped aircraft. The boundary of all closed-loop signals of the system is...

The Zero-velocity Update (ZUPT)-aided Extended Kalman Filter(EKF) algorithm is commonly deployed to resolve trajectories of pedestrians. To use the ZUPT, it is necessary to detect zero velocity intervals reliably. Existing zero velocity intervals detection algorithms cannot provides good performance...

Shale gas development offers a guarantee for energy supply but also brings environmental impacts. The particularity of shale gas development makes the use of oil-based mud indispensable. In this study, following the release of the Environmental Protection Act (2015) and the National Catalogue of Hazardous...

The phase composition of raw coal in Liupanshui Miluo area was analyzed by XRD, and the Hg content of raw coal was measured by atomic fluorescence spectrometer, and discussed the occurrence of Hg in the coal. The results showed that the Hg content in the coal increased with the sulfur, density, size...

The application of a fish Cool box using an outdoor split AC and the cooling materials are R22 and R290 refrigerants is one way to overcome the problems of fishermen selling fish in an effort to preserve the fish they sell, where so far the preservation method used is still using ice blocks or bulk ice....

This study investigated the association between viral load measured using RT-PCR Cycle threshold (Ct) values and infection trends during the waves, based on samples from the Ghana Infectious Disease Centre (GIDC). Nasopharyngeal and oropharyngeal swab samples were collected from two distinct populations:...

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...

Poor posture and stress-induced improper breathing are the usual causes of respiratory inefficiency among students and office workers with sedentary lifestyles. Conventional monitoring approaches tend to be bulky, single-parameter, and unsuitable for continuous self-assessment, resulting in undetected...

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...