Advances in Engineering Research

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...

In the optical recording equipment, the market price is decreasing year by year. Designers need to find new method to meet the tendency and keep their production profits. It makes the usage of resin material to be a trend in the industry. In this paper, by discussing the merits and demerits of resin...

The effect of yarn twist on the quality of rotor spun viscose yarn was assessed by analyzing the quality of 30-branch viscose yarn with different yarn twist. The results show that yarn twist has little effect on the quality of the viscose yarn, but excessive low twist will increase the breakage rate.

Coffee beans are essential material standard for coffee making. Before processed for consumed, the first step must be done is sorting. The purpose of sorting is to separate coffee beans by the size or destroyed or broken beans. This process is imperative for better tasting of coffee drinks. For most...

“One of the common issues that everyone deals with is stress. One of the most prevalent emotional states in people is stress. Positive stress can motivate women to make important achievements. Yet, stress may also be damaging and destructive, negatively affecting many facets of one's life. Stress...

The number and importance of web application increases fast. At the same time, the influence of vulnerabilities in web application grows as well. Automated tools are urgently needed because manual code reviews are inefficient and fallible. However, the time complexity of previous static code detection...

The ZnMn2O4 nanoplates were successfully prepared by a hydrothermal method and then a annealing process. The electrochemical properties of the ZnMn2O4 nanoplates as an anode material a reinvestigated for lithium ion batteries. The results shown that the ZnMn2O4 nanoplates exhibited a larger initial of...

Adsorption properties of polycyclic aromatic hydrocarbons (PAHs) on intrinsic graphene quantum dot and graphene oxide quantum dot were studied by local density approximation of density functional theory with empirical dispersion correction (LDA+DFT-D). Relevant thermochemical parameters including the...

Aiming at those generally existing problems in urban commercial pedestrian districts, through the design methods of extracting separation of man from vehicle in traditional Qilou pedestrian street space, continuous pedestrian space with shelter, and the behavior paths with combination of commercial activities,...

It is one of the main failure forms that stress corrosion cracking (SCC) of nickel base alloys and stainless steels in the nuclear pressure vessels and piping. Current researches show that SCC is a process of oxide film rupture and reform. To understand the micro-mechanical state at the SCC crack tip,...

State estimation of systems satisfying some special nonlinearities have been important topics in nonlinear system theory. In this paper, we discuss the problem of observer design for one-sided Lipschitz nonlinear generalized systems based on generalized quadratic stability and Lyapunov function, by using...

Using a microcomputer differential thermal balance, oil pyrolysis experiments on oily sludge samples were researched at different heating rates. Pyrolysis reactions with heating rates, temperature and time were analyzed. Their combustion calorific values were obtained through calorimetric experiments...

The paper presents an interesting method for the derivation of transfer function from passive RCL-networks (Resistance, Capacitance and Inductance) with a ladder structure. In this paper, circuit network modeling methodology is extended into thermal system. In order to apply directly the methodology...

The investigation and testing of the rural building in Ningxia found that the indoor thermal environment of existing residential buildings was not enough to meet the requirement of local residents. Taking Zhongwei city of Ningxia province as study area, the energy saving construction system for solar...

In order to model the macro-mechanics characters of structural loess well, and reflect the stress-strain behavior of structural loess, the structural quantitative parameter is defined based the idea of comprehensive structural potential. A double hardening model for structured loess is proposed by introducing...

To suppress the swing of the payload, a kind of hanging plate anti-swing device was designed, which reduced the length of the lifting rope and the swing of payload by using the constant tension hanging plate. The kinematic equations of the payload were established under the condition of whether hanging...

The study examines the utilization of climate-smart technologies among poultry farmers in Kogi State, Nigeria. Three-stage sampling technique was used to select one hundred and eighty-seven (187) poultry farmers. A structured questionnaire was used for data collection. Information was garnered on climate-smart...

Actual structural health monitoring systems inevitably generate abnormal monitoring data, which affects the detection of structural damage. To improve the efficiency and accuracy of detecting various types of abnormal data in monitoring, this study proposes a structural health monitoring anomaly data...

As a matter of fact, the cryptocurrency market attracts plenty of investors on account of its ultra-high volatility. To realize accurate prediction of the price for cryptocurrency, lots of state-of-art machine learning scenarios are applied. With this in mind, this study explores deep learning’s role...

To solve the problems of a wide variety of mechanical and electrical equipment in tunnels, independent software systems, lack of emergency response control plans for mechanical and electrical equipment with “one-click linkage” control, and poor operability of emergency response plans, this article relies...

There are some one-sided in the robot performance index of the current robot. This paper applies delta parallel mechanism to analyze the condition number index and global performance index (GPI). An improved global motion performance volatility index is also introduced according to the deficiency of...

Climate is an important factor that affects the production and life. The ecological environment in the northwest Yunnan is fragile, which is greatly affected by climate change. This study is based on the analysis of climatic indexes from 1950 to 2013 in northwest Yunnan, Using SPSS means to deal with...

Shengli lignite (SL) was thermal dissolved (TD) in a toluene/ethanol mixed solvent and the dissolved matters was further analyzed with gas chromatography/mass spectrometry (GC/MS). 15 arenes were detected and their structure were identified by GC/MS. The analysis of these high-valued arenes from soluble...

In the target tracking system, sensor measurements may arrive at the fusion center out of sequence because of the different communication delays, which results in the Out-of-Sequence Measurement(OOSM) problem. In order to solve one-step-lag OOSM problem with corrected process noise and measurement noise...

The performed studies show that application of only one parameter for assessing structure service life does not allow accurately determining time of limit state occurrence. That is why emergencies, leading to the structure damage, right after assessment of technical state of the facility are present....

A half-bridge light emitting diode drive resonance power supply which consist of power factor correction rectifier and inductor-inductor-capacitor resonant topology circuit, the controller for each part is ST6562 and L6599 chip, respectively. This design and analysis has been presented. The MATHCAD is...

Neural network provides a new research method for equipment fault diagnosis with its inherent memory ability, self-learning ability and strong fault tolerance. In the basis of equipment fault diagnosis characterized mathematical, the research established the model of fault diagnosis for equipment based...

Accurate characterization of reservoirs is a great difficulty in the study of carbonate reservoirs. Characterization of reservoirs shall be firstly based on the geological recognition of carbonate reservoirs, including multiple reservoir quality-related geologic features such as structure evolution,...

Bidirectional DC/DC converters, serving as essential devices for bidirectional energy flow in the field of power electronics, can effectively transfer energy while regulating voltage levels. Nowadays, with the vigorous emergence and rapid development of various fields such as new energy and electric...

In order to develop environmental self-adaptation electromagnetic protection materials, VO2 thin films with different thickness have been prepared on high-purity single-crystal Si substrates by Sol-Gel method. A phase transition testing system was manufactured based on static high voltage source and...

In order to solve such problems as environmental pollution, motor vehicle growth cities in our country has made a priority to the development of green public bicycle transportation strategy;First elaborates on the development of public bicycle industry in our country, and combining the land use status...

In recent years, urban public transport has always developed greatly in China, but it has been confronted with many challenges. To overcome them, the government should improve the management of urban public transport facing some problems. They are discovered and analyzed in the paper. As a new philosophy...

Considering that it’s difficult to build target motion model in structure stochastic jump system, this paper studies system errors estimation. Based on the Maximum Likelihood (ML) estimation, a conclusion is drawn, that is, there exists a causal conjunction between system errors and state estimation....

Aiming at the lager rule redundancy problems in traditional association rules, this article proposes minimum monotonous constraint closure Hadoop parallel association rules. First, basing on closure operator constraint rule equivalence relation set, this article gives satisfying minimum monotonous constraint...

The communication mode of PC and PLC based on Web and Ethernet is made of PC, PLC and Ethernet module .In the view of the limitation of the scope of PLC control, the poor integration of control system, the bad unified control of real-time, and the communication mode of PC and PLC based on Web and Ethernet...

In this paper, firstly, we will prove there is a general transverse gauge in general relativity for linear approximation. This gauge condition can play the same role as the radiation gauge condition in electrodynamics. It means that the non-physical metric tensor and affine connection can be removed...

Mantis shrimp eyes possess apposition compound eyes, complex visual systems, and unique ability of polarization identification. Within row 5 and row 6 in the mid-band of mantis shrimp eyes, the arrangement of microvilli in retina cells (R1-8) provides possibility of polarization identification. This...

The uncertain multi-attribute decision making (UMADM) problem that the information about attribute weights is known partly and the decision maker (DM) has preference information on alternatives in the form of interval numbers complementary judgment matrix is investigated. Firstly, based on interval numbers...

In this study, a certain amount of rare earth metal Cerium and low melting point Arsenic were closed in the barrel-shaped cylinder machined by H08 steel, heated to 1223K,1273K and 1323K respectively for 50h, and the interaction among the cerium, arsenic and iron was studied by X-ray diffraction, optical...

This paper provides tensile testing and analysis at the hybrid fiber model composites mechanical process measuring. In this study, tensile tested of hybrid fiber composites was accomplished using a mechanical high-efficiency propeller technology. This research result suggests that the tensile testing...

Teachers use the assessment of learning outcomes (Penilaian Hasil belajar/PHB) to improve students’ achievements. Teachers easily arrange the learning design and strategy based on the indicators in the assessment. The indicators are based on the expected achievement of the subjects’ characteristics....

With China's urbanization development, disposable income growth, the relaxation of international tourism re-strictions, China has become the country with the world's fastest growing luxury goods consumption and well-developed tourism. So high the explosive high-end consumption situation caused the attention...

This study evaluates the impact of assimilating Infrared Atmospheric Sounding Interferometer (IASI) radiance observations in the WRFDA system on the numerical weather prediction of typhoon Hongxia (2015). The IASI observations are quantity controlled and variational bias corrected in the assimilation...

This paper systematically discusses the technical basis, core technology, game example of Cocos2d-x. The development of mobile games based on cocos2d-x is described in detail including the building of the game development environment and the development of Lua shooting game.

In order to comply with the development direction of the water supply system of domestic and foreign, the use of SQL Server 2005 as a database development tool, Visual Studio.NET 2005 as a development tool for C # as the programming language, design and development of computer-based information processing...

Polyaniline (PANI) nanofibers were prepared in dilute polymerization system in the presence of organic solvents including acetone and ethanol. The as-prepared PANI nanofibers were characterized by field emission scanning electron microscopy, ultraviolet-visible absorption spectroscopy, Fourier transform...

In order to answer following two questions, One is the influence factors and the influence degree of China's total energy consumption Another is in the future five years China's total energy consumption trend prediction. This paper begins with a qualitative analysis of factors affecting China's total...

Rootkit and its detection technology promoted mutually. This paper proposes a kernel rootkit level division method based on function call relationship. The deeper rootkit's level is, the more difficult its detection becomes. We put forward and implement a rootkit method based on inline hook. It pushes...

Non-linear distortion would be introduced when non-constant envelope signal passes through power amplifiers. In the satellite navigation system, since composite signal generated by direct linear combination of signals does not have constant envelope characteristic, unexpected distortion would be introduced...

In this study, statistical theory is employed to identify abnormal online monitoring data and substandard effluent water quality in a wastewater treatment plant (WTP) of northern China. The effluent water quality can be monitored and checked by the national standard (GB18918-2002). The detection of abnormal...

This paper introduces a kind of wind tunnel test bed with a 3-RPR structure. Ansys workbench is chosen to be the main tool here to measure the structure’s stability. Linear static structure analysis, modal analysis and harmonic response analysis are carried out to detect the force, the frequency and...

Aiming at the problems of traditional linear variable differential transformer (LVDT) with poor linearity and small stroke length ratio, a new kind of structure with magnetic ring was presented. The finite element simulation models of the before and after improved LVDT were established. The structural...

The design and research of the crane anti-collision alarming device against HV transmission wires are introduced in this paper. The alarming device can receive wirelessly all the signals sent by the various electric-field sensors of the crane, and then the device can give out different indications about...

The reasons for the problem of wheel bag fracture in specific models in the process of reliability test were analyzed in the paper, and according to the actual structure and process requirements, corrective measures were put forward, and the reliability was once again demonstrated and verified.

The video & teleconference system is the important communications business platform of the company's production and operation. Annual State Grid and provincial network held more than a thousand times. The number of times is on the rise. The paper analysis the typical faults of video & teleconference...

In this paper, the neural network sliding mode control design method is studied for the large enveloping flight control law of the model with very different flight parameters. The neural network theory is used to approximate the nonlinear system and eliminate the errors brought by the approximate inversion,...

The shipbuilding industry still faces challenges and problems. One of them is biofouling on ships, a major problem that can lead to increased fuel consumption and a higher risk of spreading invasive species. The shipbuilding industry is a strategic and competitive domestic industry that deserves to be...

In this paper, we analyze three classical numerical models of heat transfer, including a 1D steady-state model, a 2D transient model and a complex 3D model considering radiative heat transfer. The scope of application, hypothesis, and accuracy of each model were evaluated. To address the heat transfer...

This Through the measurement of the hydration heat, the thermo analysis, SEM observation, and analysis on pore structure of the cement paste, we did the research on the effects of Alcamine Periodic Copolymer (APC) grinding aids on hydration and microstructure of Portland Lime-Mud Cement (PLMC). The result...

The effect of gangue content on concrete strength and elastic modulus was studied in this paper and the mathematical model of modulus calculation was built up for gangue concrete. In the tests, concrete specimens in four strength grades of C20-C50 were prepared using equivalent replacement with substitution...

Now space debris poses a serious threat to humanities efforts at space exploration as well as the expanding uses for earth-orbiting satellites. This thesis is to predict the growth trend of space debris. We construct the Space Debris Growth Model. Based on statistics in past years, Least Squares and...

Transpiration has an important impact not only on the growth of plants, but also on the hydrological cycle.Determining quantificationally the plant transpiration rate helps understanding the hydrological cycle more accurately. The transpiration rate of a single loquat tree at different relative humidity,...

3-bromo-4-isobutyloxyphenyl carbothioamide 1 is an important intermediate in many biologically active compounds such as febuxostat. In this work, a rapid synthetic method for compound 1 was established. The compound 1 was synthesized from the commercially available 4-hydroxybenzonitrile 2 through three...

the social development also brings a series of environmental crisis, the haze of human health, life, work has brought serious threat. In this case, this article through the analysis of domestic and international research status, combined with the suburban counties of transference, from encircling the...

The cable is indispensable appliance when ship berth alongside. With the increasing of ship's tonnage, the distance of ship berth is also increasing. The distance and approaches of seaman cable-throwing have failed to meet the demand, so designing appliances of cable throwing is necessary. To solve this...

Based on the demand of real projects that new overhead wires are been erected on the running wires with power flow, if zero-sequence parameters of the wires are needed, zero-sequence signals of different frequencies around the basic 50Hz can be added to the newly erected ones to generate zero-sequence...

A new airport is building at somewhere in northern China. The airport is located on an artificial island which is filled with gravel. Because the foundation is filled at one time and the thickness exceeds 22m, it should be consolidated. The designer supposed to use dynamic compaction method. The dynamic...

The spread of the distribution of goods and services is a necessity in the development of a country or region. It is in line with the principle of distribution i.e. the manufacturer wants to spread stuff covering - breadth, on the other hand consumers want ease in obtaining the goods. Development of...