Advances in Engineering Research

The existing attack detection methods cannot extract attack of industrial control system(ICS) correctly. In the view of that, we analyze the characteristics of ICS and proposes an attack detection method of ICS based on multi-dimension abnormities. First of all, we divide hosts into multiple dimensions...

When domestic wastewater was treated by biological contact oxidation on soft packer and Bio-Filter process, the removal effects of COD/TN/NH3-N and TP were discussed at different C/N and loading in the paper. Further more the combined processing of biological contact oxidation and Bio-Filter were studied....

The value of geopark include natural value, ecological value, scientific value, cultural value, tourism value and location value, which can be further divided into core layer of natural and ecological value, intermediate layer of scientific and cultural value, and peripheral layer of tourism and location...

A new terminal sliding mode control of MIMO linear time delay system is proposed in this paper. By inserting a time delay term in sliding mode, a new terminal sliding mode is developed for MIMO linear time delay systems. A terminal sliding mode controller is designed to drive the system state variables...

As the trend of economic globalization is continuously enhanced, product faces more and more market competitions. In order to survive and development, product has to push out the product that meet the requirements of market with quicker speed(time to market), higher quality, lower cost and better service....

By using the Floquet transform method and based on the periodic structure’s theory, a theoretical model has been developed to determine the dynamic response of the periodic viaduct accounted for the non-uniform seismic excitations at different piers of the viaduct in this study. Numerical results show...

The sludge discharge model in wastewater biochemical treatment is highly nonlinear,Accurate prediction of sludge discharge will provide basic data for the precise control of subsequent sludge dewatering process In the research based on this method, due to the relevance vector machine(RVM) has high sparseness...

This paper presents a qualitative theory for faults diagnosis. We extend Reiter's [1] theory to deal with the dynamic and continuous systems and offer a necessary assumption and the corresponding propositions. Then we propose an algorithm of detection of faults and extend it to the multi-faults case....

Electrical vehicle has low emissions, high efficiency and other merits. In this paper, an efficient charging device program based on constant current-constant voltage charging, PFC, and Dual Closed-Loop control is proposed. Firstly, at the beginning of the charging stage, constant current charging method...

in this paper, the simulation method based on AMESim for the common fault of hydraulic system is discussed, two most basic fault simulation methods are summarized, namely parameter setting method and additional element method, and the detailed analysis of each method is given. At last these two methods...

In this paper, based on the classic SIR epidemiological model, we consider introducing hybrid immunization strategy including targeted immunization and acquaintance immunization to research on the proportion of infected nodes when the spreading of disease ends and the time steps of disease spreading....

Particulate pollution is a major kind of atmospheric pollution. The fine particles are seriously harmful to human health and environment. Acoustic agglomeration has been proved as a promising pretreatment to control the emission of fine particles. Based on the acoustic agglomeration, this paper investigates...

In this paper, the effects of reduction temperature and carbon content on the preparation of silicon-aluminum alloy by carbothermal reduction coal fly ash were studied. The reduction products were characterized by XRD. The results showed that when carbon content was 1.15 or 1.3 times and reduction temperature...

A form of additive manufacturing named selective laser melting (SLM) involves a laser to melt and fuse metallic powders together layer by layer to produce solid parts. In SLM, a number of variables, including laser power, scan speed, layer thickness, and hatch spacing, can influence the final product's...

Surface modification of nanoparticles is a new technology, it refers to the use of physical, chemical and other methods to deal with surface of the nanoparticles. Research objective of this paper is surface modification methods and applications. All analysis is based on the need of use, change the structure...

Point supported glass curtain wall to show the permeability and integration structures inside and outside space, fully embodies the glass support system and the physical space of the artistic charm, but in appearance, but also brought great security risk. By analyzing the way the two-point supported...

Energy is one of the energy used in the form of human life. Provide electricity power system includes a number of electrical equipment, part of the equipment in case of failure, will endanger the security of the entire power system. According to the statistical analysis, the power system more than 60%...

With the development of the communication network, the cognitive radio becomes good enough to provide the reliable spectrum resources and reliable communications for the secondary users (SUs). This paper considers improving a computer network protocol and then utilizing this computer protocol for secondary...

At present, the traditional interactive mode is mainly used for geometric modeling software.In order to improve the efficiency of modeling, a voice-assisted geometric modeling system is built. The technologies used in the system are speech recognition technology, Extensible Markup Language (XML) technology...

Induction motors have an important role and have long been the most widely used components in various industrial applications. To preserve, proper care and maintenance are required. So far, regularly recording vibration values on electric motors to detect potential problems early has become an important...

Based on the acquisition of a distance education website user access behavior data, the paper analyzed two diversion indicators, PV and UV, and several sticky indicators that reflect video on demand and live streaming browsing. By the data analysis, the paper found the change regulation of the PV, the...

The relation of the density of Noctiluca scintillans and environmental factors was studied. The grey incidence and relational degree of reference sequence and several comparison series were estimated. The results indicated that zooplanktons, Active phosphate Chemical oxygen demand(COD) were the important...

This paper presents a frequency estimator based on carrier detection scheme and MUSIC algorithm which can be used for a BPSK direct sequences spread spectrum signals systems . Under non-cooperative circumstance, the nonlinear carrier detection method is used to detect the presence of DS signal, and it...

The rapid progress of urbanization in China will be an important event that will affect the economic and social development of China and the world. The development of low-carbon eco city should study the low carbon eco city development strategy, determine the development of low-carbon eco city, follow...

Construction process reengineering (CPR) is used to reengineer the construction process of engineering project by using the thought and method of business process reengineering (BPR) to improve the efficiency of engineering construction. CPR theory provides improvement direction for construction project...

The shunt capacitor is a very important part of the EHV (Extra High Voltage) transmission system in China. Shunt capacitors can compensate reactive power and improve the power quality. It plays an important role in the regulations of voltages and power factors. At the same time, high repairing rates...

In this study, to illustrate the energy conversion characteristics of air-powered hydraulic vehicle, dimensionless mathematical model of the working process is set up. Then the dynamic power and efficiency are researched based on the dimensionless parameter simulation. This research can be referred to...

Nowadays, as a useful tool, the laptop is commonly used in our daily life. However, due to the poor heat dispersion capability, the working efficiency of the laptop has been decreased a lot. In order to solve this problem, many users tend to purchase an extra radiator for the laptop, which is a waste...

During the concrete pouring process, the long downtime would weaken the bonding strength between old and new concrete layers. The bonding parts would like to form horizontal cracks, especially winter intermittent surface in the severe cold region, of which cracks would easily propagates from surface...

As an important transportation tool of earth stone, mining truck withstand the impact of complex alternating dynamic load. Suspension as a connection of frame and axle, reduce the impact effectively. The double arm independent suspension was regarded as the research object in this paper, and analyzed...

Accurate power network data is the basis of grid security check. The plan data adjustment in different dispatching center influences each other. Regional balance was used in security check, based on fixed tie-line schedule, however, the influence of different dispatching center is ignored and power flow...

The paper designs and researches the modular design method of diesel crankshaft based on the research status of the Sach-Merkleisten management technology through analyzing the modular design. On the basis of the crankshaft product and geometry analysis, the crankshaft module division and module creation...

This paper focuses on the major influencing factors about the use of the Massive Online Open Courses (MOOCs). It is promoted by the top universities domestic and overseas. Under the background of big data, MOOC develops rapidly, but its development is not smooth, especially the users’ practical application....

China is one of the largest fluorescent lamps consuming and producing countries in the world. However, there are few studies evaluating environmental impacts of fluorescent lamps in China. This study compared the environmental impacts of two lighting systems in China – compact fluorescent lamps and linear...

The effects of nitrogen (N) and potassium (K) fertilizers on fruit qualities of blueberry 'Legacy' were studied. A field experiment was conducted using randomized block design. The results showed that the fruit weight and total soluble solids content of blueberry were significantly increased by fertilizations....

In this paper, we investigate the dynamics of an inverted pendulum with two concentrated masses. The perturbation method is used to find the transition curves. We emphasize the difference between the case of two concentrated masses and that of one concentrated mass. Numerical simulations are carried...

According to the data we have consulted, we can come to the conclusion that there are five kinds of commonly used methods to get rid of space junk, respectively Laser Removal Technology, Satellite Debris Collector, Space Garbage Truck, Suicide Satellite and Resistance-increase Device. Their respective...

This paper discusses an automatic control experiment box applied to engineering education and competition trainings. Based on the analysis about common functions of robots, this paper generalizes four modules: control circuit module, mechanical action module, acoustooptic display module and information...

This paper presents the process of qualitative multi-faults diagnosis. We propose a new diagnostic process for continuous and dynamic system and its corresponding consistency-checking module. The STRIPS language is used to generate the system model since it integrates the cause-effect information required...

the improvement of the condition of our country's economy and the development of urban and rural areas as a whole,The rural biogas construction also presents the diversified development trend.This paper introduces the hebei qingxian county straw partnerships biogas application status,For straw partnerships...

Direct starting method of asynchronous motor does a lot harm such as current surge and mechanical shock, etc . In order to reduce the harmful influence of direct starting method and improve the starting performance of asynchronous motor, a scheme of asynchronous motor soft starting system based on antiparallel...

A constant force tool system for the abrasive belt grinding and polishing was developed in the paper. With the addition of the constant force control during the finishing of curved surfaces, the accuracy and the surface roughness could be improved. The constant force tool system would be used on the...

To improve the reliability of airfield lighting, a new method based on wireless sensor networks is put forward. As the energy consumption of the sensor node determines the lifetime of the WSNs, the key problem of WSNs is designing a low-energy sensor node and adopting low-energy routing protocol. According...

Soil environment is one of main influence factors for buried pipeline corrosion. In order to improve soil corrosion environment, some physical and chemical methods are available. The aim of this work is to evaluate validities of two kinds of chemical reagents for improving soil corrosion environment...

When Digital Video image transformation from general screen (i.e., 4:3, etc.) to widescreen (i.e., 16:9, etc.), the source image aspect ratio will change, image resolution adjustment and format conversion is difficult. In this paper, a method of nonlinear scaling is proposed, aim to overcome the image...

Low utilization rate of transport vehicle for prefabricated construction (PC) components is one important reason of the high transportation cost. On the basis of analyzing the geometrical characteristics of PC components and installation sequence, the vehicle load capability and principles are taken...

The focus of this paper is to develop a transmission and reflection matrices (TRM) method for 3-D layered poroelastic half-space subjected to moving load. Applying the triple Fourier transformation, the general solution for the displacements, stress and pore pressure are derived from the governing equations...

This paper took certain a landslide in Sichuan province as a research object and focused on characteristics of groundwater flow and stability of the landslide with changes of conditions. Three-dimensional conceptual model was established for groundwater flow in the landslide with weak permeable media....

The ever increasing complexity of avionics system and amount of platform devices makes allocating the IMA resources more error-prone and harder to evaluate. This paper proposes a method of preliminary design of IMA platform based on models. The definition of system and platform respectively bases on...

Biodegradation of pyrene and indeno(1,2,3-cd)pyrene in reed rhizosphere soil was carried out in a small-scale wetland simulator using reed as well as microorganisms immobilized on cinder beads under natural environmental conditions. The results show that the stability of the introduced strains was enhanced...

The rapid development of power system communication enables Power Communication network communication devices become more complex, more and more communication lines, which give the communication resource management, especially resource management circuit has posed a serious challenge. This article also...

Throughout the development process of the water quality evaluation method, the paper outlines several water quality evaluation methods, summarizes them and points out the advantages and disadvantages. Finally the paper points out that water quality evaluation method will be further improved with the...

The level exchanging buffer of large erecting hydraulic cylinder is one of the core issues in the process of rapid erecting equipment development. This paper combines the actual, building analysis platform of fluid-structure interaction by using fluent and workbench,researching the effect of the change...

The granular computing is a methodology aiming at simulating the process and structure of the human cognition in the world. A new promising clustering algorithm, the density peak clustering (DPC) was proposed recently, which whereas, just takes procedures at a single granularity and could be conditionally...

Carrier Sense Multiple Access (CSMA) is a very important network communication protocol. According to the different ways of service agreement can be divided into: No-Persistent CSMA, 1-Persistent CSMA, P- Persistent CSMA. Although these protocols can improve the system throughput, but there are also...

To improve the air environment of the ship's medical cabin, A series of experiments and numerical stimulations were carried for the research on the medical cabin's indoor air quality. By changing the opening rate, the different schemes of the full orifice air supply and the partial orifice air supply...

With the development of technology, unmanned aerial vehicles (UAVs) are increasingly utilized in civil applications. Several provinces and cities in China are vigorously developing the low-altitude economy, with industrial environments gradually maturing. However, traditional A-star algorithms produce...

The poly (L–lactic acid) (PLLA) micro/nano fibrous multi-porous films are fabricated by electrospinning. The effect of flow rate, spinning time and the type of solvent on the mechanical properties, pore volumes, distributions of pore size and specific areas of PLLA micro/nano fibrous multi-porous films...

With the development of the society, oil and coal resources gradually reduce, as a sustainable, renewable energy, the development of biomass energy became the inevitable trend to save resources and protect the environment. At present, Biomass energy is rapidly developing in the paper-making, power, gas...

In this paper, considering a clustered wireless sensor network, we propose a cooperative transmission scheme based on virtual multiple antennas combining with advanced channel coding (such as low density parity check codes), and give the system performance under different conditions through simulation....

The literature, logical analysis, video clips, and mathematical statistics methods are used in this paper for statistics and analysis 2012 European Cup Final stage 31 games 73 goals. The results showed that: Scoring high frequency period is the 60mins; the best area of goal is the goal area and penalty...

Reinforced concrete frames are one of most popular structures used in the world, but the research on their fire is at primary stage. In this thesis, the non-liner analysis of reinforced concrete frames at elevated temperature was analyzed by ANSYS, which included calculations and analysis of temperature...

A lot of literatures indicate that, the statistical characteristics of sea clutter at low grazing angle can be modeled as compound Gaussian process, which is the product of speckle with shorter coherent length and texture with longer coherent length, and is non-Gaussian, non-homogeneous, and non-stationary....

This paper presents a fault reconstruction scheme based on sliding mode observers for sensor and actuator faults detection and isolation for a class of uncertain nonlinear systems. A coordinate transformation is first designed for the output equation of the system followed by a first-order low-pass filter...

The failure characters and damage mechanism of Sn3.0Ag0.5Cu/Cu as-reflowed solder joints under shear thermal cycling were investigated by special shape design for the experiment sample in this paper. The results indicate that fatigue damage mainly occurred within the solder far from the interconnection...

Automotive manufacturers are facing greater demands to improve the fuel efficiency and performance of their vehicles while also reducing the overall weight. In order to meet these challenges, manufacturers are turning to alternative materials such as stainless steel and aluminium for their vehicle structures....

As advocating a low-carbon lifestyle and increasing resources crisis, the green energy-saving buildings have profound implications for our country's development and environment protection. Analyzing key techniques of energy-saving about green buildings from design link, because of design is a starting...

To solve the problems that ontology is lack of semantic information in ontology extraction, the advantages and disadvantages of methods that building ontology from database are analyzed and we find that the maximum semantic ability of ER model is ALUIN. On the base of our research, a method of extracting...

Intelligent network interface cards are widely deployed in databases, web servers, big data analytics, shared mass storage, virtualized network device, router, and firewall. This paper presents an intelligent NIC design based on Freescale T2080 processor. It is a PCI Express card and provides two SFP+...

This paper establishes the stratosphere propeller geometry model, using Pointwise software to generate grid structured grid. The flow field of the propeller at the altitude of H=20km in different wind speed and different rotate speed are simulated using the software FLUENT. The SST turbulence model and...

High-rise connected structure has been widely used in the country, at present research of its seismic behavior is less. In order to have a clear understanding for dynamic characteristics of high-rise connected structure, and improving the structure’s seismic performance. This paper adopts the universal...

The access of Ultra-High Voltage (UHV) line must have a great impact on security and stability of power grid. In this paper, to access a 1000kV UHAC line to a power grid, the stability and security of power grid are analyzed and a sensitivity method is proposed to solve the problem of threshold-crossing...

In view of the current ecological new-town construction boom in China, We analyzes the problems in the new town construction in our country by reviewing ecological history of urban development and construction practices, and explore where the main points of the ecological new town planning and design...

Logistics and supply chain management system for hospital pharmacy is an important element of HIS. But the HIS in common use still lack support for drug logistics and supply chain service functionality and documentation management is done manually. There is a information gap between hospital and drug...

Transmission pipelines carrying natural gas across long distances often work at high pressures (up to 10 MPa). The high-pressure natural gas is regulated though a throttling device, which results in much waste of pressure energy. Meanwhile, more pressure reducing stations exist the problem of no electric...

The permeability testing technology is a kind of non-destructive testing method, which based on the change of permeability, can detect the stress concentration state and the degree of fatigue damage for ferromagnetic samples. The detection sensor based on the constant current source has higher detection...

Phosphorus adsorption and desorption in natural waters have played a crucial role in the ecology of rivers and reservoirs. Hence, the purpose of this work was used to study the effect of sediment's characteristics on phosphorus adsorption and desorption. The experiment uses open channel model, instead...

In the cement enterprise energy management reporting system plays a very important role, with analysis and comparison function cement energy data. The system uses XML technology and jQuery Easy UI plugin implements which a software development may accelerate reporting production systems. This article...

Research quality management task is to discover and solve scientific and technological research and development in the process of abnormal quality situation.It establish and improve the quality supervision and inspection tracking system, strengthen research quality management efforts, discover and solve...

R- robot arm is an important part of the robot to achieve the function, low stiffness seriously affect the accuracy and efficiency of work, so the requirement of stiffness is higher. In order to improve the rigidity, this paper put the arm structure as the research object to optimize. First of all, the...

Monte Carlo method (MCM) for evaluation of measurement uncertainty is a beneficial supplement to the “Guide to the expression of uncertainty in measurement” (GUM). This paper introduces the method and the steps of measurement uncertainty evaluation by MCM based on LabVIEW, and an example is given out...

The solidtosolvent ratio, ethanol concentration, extraction temperature and extraction time were investigated for extracting total flavonoids from wolfberry. The optimal conditions were found to be extracted at the ratio of material to solvent 1:20 (g/mL), 60 for 40 min with 70% (v/v) ethanol. The D101...

In this paper a solar air preheater is installed in front of the evaporator of air source heat pump in order to solve frost and liquid strike of the evaporator operating in the cold regions. The analysis shows that the new system can increase the air side temperature of the heat pump evaporator effectively,...

A novel self-excited oscillation spraying blade has been designed and the geometric model of the conical surface and rectangular surface self-excited oscillation spraying blade have been established. The flow field distribution of novel spraying blade has been obtained by finite element analysis, simulation...

This paper analyzes the status of China’s vegetable, combined with vegetables logistics concept, characteristics and operational requirements, describe the vegetables logistics body according to the different circulation during the logistics mode. Then, discuss the existing logistics mode and analysis...

In the paper, the mathematical statistical method is adopted to build a storage life prediction model of missile equipment. Data "mutation" and confidence area appeared in the process of the model parameters determining and life predicting are discussed, and several improved decoding algorithms for inefficient...

PbTiNb2O8 is a new piezoelectric ceramic that satisfy applications of energy harvesters. Complex structure change and dipole relaxation of Pb-site doping PbTiNb2O8 piezoelectric ceramics were investigated. The synchrotron radiation study results show that with 5mol% divalent cation substitution to Pb-site...

The finite element model of the internal rolling connection process for Titanium alloy tubes was established. The distribution of the elastic strain and the contact force were analyzed to reveal the sealing mechanics of the flareless union. The residual compressive stress was generated between the tube...

In real-time data warehouses, data updates are no longer implemented in a periodic way during the idle time, but continuously ongoing. Thus the scheduling of updates and queries becomes a key issue. This paper proposes a load scheduling algorithm based on QoS parameters of query tasks. First, the paper...

Along with the development of industry 4.0 and the ongoing pandemic conditions, an interactive media is needed for learning that adapts to the times. Based on these problems, it is necessary to make an informative and attractive learning media. By using virtual reality technology that utilizes a 360-degree...

In order to reduce investment and maintenance cost, the optimal sizing of distributed energy in AC/DC hybrid stand-alone micro-grid is studied in this paper. The optimization model is built and economics, power supply reliability and environmental protection are taken into account. By means of the modified...

Use computer software for arrangements, we are prepared to use the Matlab software, also known as matrix lab, one for algorithm development, data visualization, data analysis and numerical calculation of senior technical computing language and interactive environment. According to the basic knowledge...

Taiwan has significantly varying terrains, and majority of its population centralize in the plain area, where most cities are located. Most buildings here are for both commercial and residential use, and they are expanding upward in order to make use of the space better. In such high-rise buildings,...

In this paper, the cost and benefit of different participants in critical-peak pricing project are analyzed. Cost-benefit models of power generation company, power grid company, power consumers and government departments are established. Furthermore, benefit distribution modes of different stages in...

In recent years, high-rise connected structure is a structure form that is used widely, in order to research the structure’s dynamic characteristics, and improving the structure’s seismic performance. This paper adopts large finite element software ANSYS to establish finite element model of high-rise...

To develop the rapid method for detecting of Spring viremia of carp virus (SVCV) and Cyprinid herpesvirus 2(CyHV2), 2 pairs of specific primers for duplex reverse transcriptase polymerase chain reaction (RT-PCR) were designed according to the nucleotide sequence information of CyHV2 and SVCV published...

In this work, a new type of micro-electrolysis technology using combined materials containing fly ash, iron scraps and rare earth Gd on the treatment of toxic and harmful nitrobenzene wastewater was presented. Fly ash was applied instead of activated carbon in the combined materials and single-factor...

Network security system constructs unified management and communication software under the monitor of alarm management center to make the distribution network between each subsystem and central monitoring equipment. Under the control of alarm management center and central management, achieve automation...

Measurement of liquid flash point is one of important experiments to safety engineering specialty. Its importance was analyzed by author and its available measurement methods were introduced. Then problems in teaching process of liquid flash point measurement were analyzed. Finally, some measures were...

The Chinese economy is developing rapidly, the demand for energy is getting more and more intense. With the development of coal mine, the utilization of gas is getting more and more important, and the numerous gas generating units will be connected to the power grid. Due to the characteristics that the...