Advances in Engineering Research

Carbon nano fiber (CNF) was modified by acid oxidation and maleic anhydride (MA) graft in current modification. The CNF filler surface properties were characterized by energy dispersive spectrometer (EDS) and X-ray photoelectron spectroscopy (XPS). In addition, the properties of epoxy resin with modified...

Service-oriented new software system development has gradually been proposed and gets rapid development with the emergence of Web services. Service oriented architecture (SOA) makes changes in creation and development of deployment application system, and will become the effective way to solve enterprise...

In order to realize the utilization of kinetic energy of micro natural energy, a kind of rotary booster is proposed. Through adjusting the length ratio at both ends of the lever, the force value is magnified by times and the rectilinear direction of force is transformed to the rotary direction with lever-type...

Network countermeasure is an important kind of combat operations in information condition, so how to implement network countermeasure simulation in simulative training applications is a crucial problem to be resolved. Therefore, the paper first proposed the architecture of network countermeasure simulation,...

We propose a node local resource aggregation index and then we also propose a virtual network embedding algorithm based on this index. Simulation results show that our proposed algorithm outperforms other embedding algorithms in virtual network request acceptance ratio, long-term average revenue and...

Based on higher order contact meshing theory of conjugate curvature, to establish normal tooth profile model of a new tooth profile double helical synchronous belt transmission. Finite element analysis software is used for new composite double helical synchronous belt out the stress analysis of variable...

In this paper the issues of impervious performance based on fly ash clay are analyzed in detail. The specimen preparation experiment and variable head permeability experiment are introduced. The experimental results of this paper can provide reference for practical engineering application of fly ash-modified...

In this paper, the software of DeST-h was used to simulate the energy consumption of a residential building in Anyang,henan province, based on the comparison of external-wall with different insulation thickness.By analyzing the investment costs of exterior insulation material and the operation costs...

Nitrogen-doped nano-sized titania N-TiO2 photocatalysts were prepared by sol-gel process followed by ultrasonication.The photocatalytic decomposition of methyl orange in aqueous solution was used as a probe reaction to estimate their photocatalytic activities.Applying means of XRD,TEM and UV-Vis DRS...

This paper propose a method to study the dynamic characteristics of two-phase flow though the signals which collected from acoustic emission. With the digital processing to extract the feature of time domain and wavelet energy to analysis. the characteristic of flow. At last, get the relationship of...

The operating status of transformers directly affects the safety of entire power grid. Therefore, it is essential to monitor a variety of transformer fault and ensure the normal operation of power grid. The multi-frequency ultrasonic technique was proposed in the thesis and which utilized hundreds of...

Baiyinhua Reservoir is located in Oumulun River, Ar khorchin banner in Inner Mongolia. The irrigation area of design is 53600 mu, and it is a medium-sized reservoir which is given priority to with irrigation. This article gives the stress and deformation distribution during construction and operation...

The fundamental purpose of this paper is to present the difference between strategies for extraction of reference compensation currents for harmonic mitigation in a non-linear load. APFs are used to compensate for the harmonic current generated by non-linear loads. These harmonic currents are produced...

In the process of heating for materials, ordinary PID control methods cause the high temperature overshoot, which damages the structure and properties of the sample. In views of the large thermal inertia under the vacuum system, A PID control based on dynamic temperature assignment (PID-DTA) was proposed....

In order to study the stress distribution features of the surrounding rocks a long the circle tunnel after the roadway excavated and the radius size of there leased circle, first analysis of the stress distribution characteristics of the surrounding rock, on this basis, circular tunnel for the elastic...

In this paper, the influence of serial resistance Rs and shunt resistance Rsh for PV cells are studied. The series resistance Rs has a great influence on the output characteristics of the PV cells. Therefore, it is particularly important to solve the value of Rs for the model of solar cells. Rsh is very...

This paper proposes a novel foot-pad omni-directional locomotion interface, establishes planar walking algorithm for it in detail. The proposed locomotion interface allows users walking omni-directionally in a virtual environment, which can improve users’ immersion characteristic significantly. The...

This paper aims to design a distributed grid simulation system dynamic voltage restorer means to solve the problem of dynamic energy security in case of equipment operating in the electricity voltage sag or interruption. Means the use of "DC - AC" and "AC - DC - AC" dual structure, control system uses...

From the theoretical analysis of the primary energy consumption of refrigeration system, energy saving rate and value, combined with the application of specific case, the absorption refrigeration system and the compressor refrigeration system in Combined Cooling, Heating & Power Generation (CCHP) system...

Because of the compromise of the security of the underlying system or machine storing the key, exposure of the private key can be an great attack on a cryptosystem. Key insulation is an important method to protect private keys. To deal with the private key exposure problem in attribute-based encryption...

PHB is similar with non degradable plastic which is widely used in most properties. It is supposed to be an excellent substitute of traditional petrochemical plastics because of its biodegradable character. However, the production cost of PHB is much higher than that of traditional plastic. The substitution...

In this paper, in view of the stretcher transshipment transport stretcher part of car design modeling and simulation analysis, according to the design requirements for design transfer stretcher and with the back, legs Angle adjusting mechanism. AnyBody software is used to the human body back, leg movement...

Load balancing is one major cause of the false traceroute link problem in the Internet topology measurement field. In order to improve link inference correctness in the presence of load balancing, the impact of per-packet load balancing to link inference in the context of symmetric and asymmetric load...

Invulnerability study is an important research content of complex network. On the basis of analysis and comparison of other traditional inadequate measurements of invulnerability, natural connectivity was used as the invulnerability measurement of network topology and an optimal network topology model...

In the era of big data, it is an important means to building user portraits and helping enterprises to implement precise marketing through comprehensive analysis of multidimensional data. Aiming at the problem of lacking detailed mining analysis and one-sided user attribute analysis, a method for modeling...

Presence of echo is one of the challenges when using ultrasonic for transmitting data through the steel. The model of multipath channel in the ultrasonic through-steel communication system is described and the method of echo cancellation is analyzed in this paper. This method applies a pre-distortion...

This paper presents a universal model for dynamic system based on geometric modeling methods. The model uses time series that implicates dynamic characteristics as study object, uses geometric modeling methods as basic ideas, and uses embedding time element in NURBS model as the key, for representing...

In order to improve the ultrasonic test penetration in the concrete members, a kind of high-power ultrasonic pulser-receiver was designed. With the instantaneous high-voltage pulse by capacitor of charging and discharging, the transformed voltage can reach a peak of 800v. A specific receiver was designed...

The traditional method in solving geotechnical engineering problems can only come to the theoretical solutions. The triple-shear unified elasto-plastic constitutive model is proposed based on the triple-shear unified yield criterion, and the secondary development to ANSYS with the complicated practical...

Security and privacy are widely recognized as important requirements for access and management of power information system data. In this paper, we argue that power information system data need to be managed with customizable access control in security classification dimension. We present a role-based...

Taken one of the rising national strategies of Xijiang river basin as the study area, we first established the sustainable utilization index system of water resources assessment. Then, the analytic hierarchy process was applied to calculate the index weights. And the composite index method was applied...

A design of system of video monitoring cars based on IEEE802.11n protocol. STM32 chip as the control core, image data gathered by free driver USB camera, was used to compression coding, which was sent to video receiver by the use of RT5350 wireless router module with WIFI. Then the user could send control...

At present, the State Grid verification pipeline can only work for a single metering equipment, and exists some outstanding problems, including utilization rate, clear line time, the project investment cost and occupation area and so on. This paper introduces fully compatible integration verification...

Through the analysis of the Putaohua oil layer of Xingnan area’s geological information, sums up the fault form in section and the main form in the plane. Analyze the influence of different fracture dense belt for oil and gas migration and enrichment of sand body ,and controlling action on hydrocarbon...

Steel lined reinforced concrete penstock is commonly used as a hydraulic structures in recent years. Because of the complex structure of the penstock, so far no design specification can follow at home and abroad. In this paper, general finite element calculation software is used to conduct nonlinear...

By using GIS and RS technologies, coastal suspended sediment concentration (SSC) of Yellow River Estuary were retrieved and analyzed in two periods, normal period (NP) that means before 2002 and water & sediment regulation period (WSRP) that means after 2002, to reflect the temporal and spatial change...

The increasing proliferation of social media results in users are forced to ascertain the truthfulness of information that they encounter from unknown sources using a variety of indicators. In this paper, we propose a novel method to rank credibility of users in microblog social network. Microblog social...

In response to Indonesia’s Ministry of Education, Culture, Research, and Technology’s drive to enhance entrepreneurship in higher education via Regulation Number 3 of 2020, the 2022 Independent Entrepreneurial Program (WMK) was initiated to cultivate student potential and innovation. This research focuses...

This paper develops a geographical exploration technique for detecting obstacles of trenchless engineering by integrating cross-hole seismic tomography and horizontal directional drilling (HDD) technique. Firstly, several small-diameter holes along underground engineering are drilled, and Polyethylene...

For the graph-based semi-supervised learning, the performance of a classifier is very sensitive to the structure of the graph. So constructing a good graph to represent data, a proper structure for the graph is quite critical. This paper proposes a novel model to construct the graph structure for semi-supervised...

The morphology may significantly influence the properties and applications of materials, thus the ability to tune the structure, size, and shape of inorganic materials is an important goal in obtaining nanomaterials with novel properties. A novel and facile synthesis route for the manufacture of porous...

This paper has divided a country into two systems: economic system, environmental system. On the basis of Development evaluation system from United Nations and our analysis, we determined first grade metrics of sub-systems. Then, based on first metrics, we specified second grade metrics and defined the...

To guarantee the OoS of delay-sensitive traffic and improve the routing performance of the aerospace network, the shortest delay routing protocol for delay-sensitive traffic is proposed. Base on the queue information and packet loss probability, the routing protocol can provide the shortest delay path...

The T106 axial turbine series is used extensively by major engine manufacturers, because of its ability to give the best performance at low pressure conditions. However, it has high secondary flow development. The present work aims at understanding the effect of high gas velocities and high temperatures...

As China's economic development, social demand for electricity continues to increase, while the primary energy to the unbalanced distribution of electricity load centers resulted in our country needs long-distance, high-capacity transmission. To improve power quality, series capacitor compensation as...

To reduce NOx emission, LnPW (Ln= La, Ce, Pr, Nd, Sm, Eu, Gd, Yb, Y; PW= PW12O40) were prepared and used for NOx adsorption and decomposition. The adsorption results showed that NOx adsorption capacity on LnPW were lower than phosphotungstic acid (HPW). After doping with HPW, the NOx adsorption ability...

The current methods of software behavior risk prediction is mainly through the study of the operating rules from the data of the other software of the same type, and that leads to differences between the prediction results and the actual software behavior. Aiming at this problem, this paper presents...

The rapid development of today's information technology, multimedia teaching has been very popular. There is a problem worthy to further explore which is visual communication of multimedia teaching. Combined with the actual teaching experience in this paper, according to the basic laws and principles...

A pot experiment was carried out to study the effects of exogenous abscisic acid (ABA) on the resistance of Capsella bursa-pastoris under salt stress. Spraying ABA increased the root, stem, leaf and shoot biomasses of C. bursa-pastoris under salt stress. ABA applications also enhanced the plant height...

Supercapacitor can get high energy density and the ability of quick charging and discharging. In this work, the different mass ratios of composite electrodes mixed with active carbon (AC) based on RuO2•xH2O, were prepared to study the electrical performance parameters of the incorporations. Through Conway’s...

The work focused on the preparation and characterization of porous composite material as novel adsorbent towards CO2. The porous composite material was synthesized by cross-linking of cellulose and β-cyclodextrin with epichlorohydrin (EPI). Then the adsorption characteristics of carbon dioxide on the...

In this article, a novel hemp stem powders (HSP) reinforced flexible polyurethane foam from polyols and diphenylmethane diisocyanate (MDI) has been prepared by self-rising method using water as blowing agent. The cell morphology of the HP reinforced foam was examined by scanning electron microscope (SEM)....

Bridge-type inverted siphon is located at Yangdong reservoir in the Zixing county, Hunan province, its controlled basin area is 31000 mu. Inverted siphon pipe is single round pipe, inner diameter is 1.0 m, wall thickness is 0.21 m, adopts reinforced concrete structure. This paper uses universal finite...

Unmanned amphibious platform (UAP in short) is a complex nonlinear system. It shows plenty of dynamic properties, such as parameter uncertainty and large time-lag, when controlled, which hinders the development of the approaches of exactly course tracking. Motivated by adaptive fuzzy sliding mode control...

Computer vision is an important research direction for the man-machine interactive intelligent visual image processing. It is a key technology to the text information extraction and recognition of video or image. As a new research direction of video analysis and application field, Video OCR has the certain...

In this paper, we make use of the software defined network (SDN) technology’s characteristic of separating the function of forwarding and control to concentrate control function in the control layer (comprised by SDN controllers), and design a kind of communication network architecture for energy interconnection....

With the increasing popularity of smart mobile devices and the rapid development of mobile Internet, which provides mobile users with a broader platform for the behavior. The rich data connotation provides favorable conditions for more accurate user behavior analysis. Based on the behavior of mobile...

Power load is the active part of safe and stable operation of the entire power system. Establishing realistic dynamic load model is important meaning for power system planning and operation. In this paper practical load modeling idea is adopted for clustering analysis of the data of load characteristics...

Combine with a large span frame structure project ,a survey on live loads of this building has been conducted,and the survey lasted the whole construction period of the building, the loads in the four phases of template erection, steel banding, concrete pouring and curing were recorded. According to...

In order to improve parametric design process efficiency, design product is layer-by-layer decomposed into design unit according to the functional, and the design unit is looked as the carrier of knowledge and the object of parameter driving. In order to describe the product structure and integrate design...

It is important for provincial water function zone to maintain good water quality for downstream province. In recent years, provincial water function zone water pollution became serious, which caused pollution disputes between upstream province and downstream province. The study on water ecological compensation...

Cuprous oxides thin film with different morphologies were formed on F-doped tin oxide (FTO) covered glass substrates by potentiostatic deposition of cupric acetate. The effects of electrodeposition temperature and Br on the crystal morphologies of cuprous oxide were studied. Different crystal morphologies...

In order to improve the prediction accuracy of wireless sensor network, a novel prediction algorithm is proposed by ARMA and wavelet transform. In this algorithm, the characteristic of ARMA is defined, and the Theoretical foundation of is given. Then, the prediction error of actual traffic is decreased...

The phase and composition of Liupanshui coal gangue were determined by XRD and XRF analysis. The coal gangue is calcined at 600°C for 2h, grind 200 mesh, and the optimum amount of coal gangue is determined by testing cement mortar with different proportions and testing its compressive and flexural mechanical...

The important difference of Microblog network and WeChat network is network centralization. Microblog is a platform which pay attention to very important users, but WeChat is a decentralized network. Based on this point, we firstly build a model called information spreading model to simulate information...

The necessity of vector characterized is given by comparison of common test methods for mixer. Based on the model proposed by Agilent company, establish a simplified model of the parameter C and investigate the mixing product and jamming signal processing method. Through the analysis of phase for two-port...

Lime softening & side-stream lime softening method is used for circulating water treatment system in a certain Coal-fired power plant project of Henan Province. Main components of sludge discharged from lime softening system are CaCO3 and Mg(OH)2. This study analyzed the composition and discharge amount...

Beijing-Tianjin-Hebei Region is one of the areas which haze can be usually seen. The basic reason of haze is pollution, weather and geography conditions, which is only external cause. Pollution remediation and governance haze have become top priority in Beijing-Tianjin-Hebei Region, even in national...

With the development of trusted computing, trusted computing model and trusted computing platforms are constantly changing, and becoming more and more perfect. In terms of the hardware platform, the trusted computing technology has been gradually matured. Many companies and businesses solve security...

The computational scheme and the basic idea of the Flux-Corrected Transport (FCT) method are studied in the paper. With the numerical simulations of 1-D stress wave, its application to SPH are discussed and compared with SPH coupled with artificial viscosity. The result shows that FCT method is very...

A vessel motion statistical learning based on stored AIS data is proposed in this paper. This paper divide the region of interest into a uniformly sized grid, and analyze the stored AIS data messages according the vessel's position and index the motion information into the unique grid. The sailing state...

China Rural widespread structural surplus straw is the major constraints and limitations of modern agriculture industry sustainable development. Straw returning after biogas treatment is an important way to solve the problem of straw, as well as effective means of achieving a low-carbon economy and the...

A pot experiment was carried out to study the effects of exogenous abscisic acid (ABA) on the photosynthesis of Capsella bursa-pastoris under salt stress. Under salt stress, the chlorophyll a, chlorophyll b and total chlorophyll contents of C. bursa-pastoris showed no obvious changes at low ABA concentrations...

Dynamic state estimation of power system is a sophisticated problem since voltage and current phasors under dynamic conditions are nonlinear and hard to be obtained. This paper presents a new power system dynamic state estimation method using Extended Kalman Filter (EKF) based on Phasor Measurement Unit...

To solve the signing key exposure problem in fuzzy identity-based encryption systems with ciphertext policy, we propose a fuzzy identity-based threshold key-insulated encryption scheme with ciphertext policy (FIBTKIE-CP) which is provably secure. Our scheme is key-insulated and strongly key-insulated....

The development of underwater technologies demands reliable wireless power solutions to overcome the limitations of conventional wired systems. This paper presents an optimized underwater wireless power transfer (UWPT) system based on series-series (S-S) compensation topology with a novel misalignment-tolerant...

Rolling tension control is an important factor to ensure the quality of steel products. In actual production process, there are shortcomings such as large overshoots, long adjustment time and the parameters are difficult to adjust in real time because rolling tension model is a high-order nonlinear system...

With the development of big data, cloud computing, Internet of Things, "Internet +" launched a new round of revolution in the industry. With the release of the Power reform document 9 and a series of supporting documents, the China's power reform gets a new opportunity. In the sale side of power reforms,...

Feisha aqueduct is located at west main canal of irrigation district in the Xinjin county, Liaoning province, the aqueduct is reinforced concrete rib arch aqueduct, arch centering is variable cross-section reinforced concrete double rib structure, arch axis is parabola, clear span is 33 m, rise-span...

The key technology of Sensorless BLDC motor control is Zero-crossing detection. Based on full research and analysis of the Back-EMF motor principle, wave and traditional detection methods, a new method of Back-EMF Zero-crossing detection is introduced. The method does not rigidly adhere to the principles...

Effectively apply computer technology in image contour extraction can not only automatically detect surface image defects, but can better process image contour and realize the function of extracting single pixel image edge profile with high precision. It can meet the measurement requirements based on...

Ecological security classification of land resources play an important role in sustainable utilization of land resources and improve benefit of healthy development of urbanization in China. According to the county level of ecological security classification of land resources data which is large scale...

Using microwave technology enhanced flocculation treatment of oilfield wastewater containing polymer .Chose the wastewater COD removal efficiency as an evaluation index, investigated four kinds of flocculants, such as AlCl3, FeCl3, PAC, PAF in the microwave irradiation and no microwave irradiation two...

Aiming at the rising demand for functional diversity and stability of underwater sampling equipment, a special underwater measurement and control system based on distributed management is designed in this paper. The system takes STM32F407 as MCU, dividing the whole function into different functional...

An off-lattice Monte Carlo model has been developed to simulate growth of dust cakes from ultrafine particles in a model filter composed of an array of identical parallel fibers placed transverse to the flow. Unlike previous simulations on the dust cakes, this study considerd the effect of the flow feature...

With the development of marine resources and the demand of marine military protection, underwater explosion technology is getting more and more attention. The underwater explosion experiments with single charge & double charges were carried out in a small cylinder explosion pond with diameter of 5.5...

A bibliographical review of the literature on heat and mass transfer in gravity-aided closed Loop Two-Phase Thermosyphon (CLTPT). To prevent the dissolution of the liquid layer, it is advised to use a thermosyphon that is optimally filled with a modest amount of working fluid. The main task is to develop...

In many practical problems, it is sometimes necessary to evaluate the derivative of function whose values are given approximately. Firstly, the problem of estimating the derivative of a function observed with error is studied. It presents a proper regularization strategy and explain how to choose regularization...

In the thesis, simulated analysis of eight steel reinforced high strength concrete column under the low reversed cyclic horizontal load were performed by using the nonlinear finite element software of ABAQUS. The hysteresis behavior, skeleton curve, displacement ductility energy-dissipating capacity...

RSSI-based positioning technology suffers from accuracy degradation due to complex indoor environment, and traditional weighted centroid algorithm hardly satisfies people's accuracy requirements. In this paper, a hybrid RSSI based positioning algorithm is proposed. Firstly, maximum likelihood estimation...

A strapdown inertial navigation algorithm is proposed, which is suitable for the measurement of the parameters of missile in the ejection test with short movement time, small changes of velocity and position. The transformation relationship between the missile-boy coordinate frame and the navigation...

In order to reduce the security of time, this paper introduced the action analysis, guided by the economic principle of motion principle, Uses the IEMS video motion analysis software, in the process of security action analysis. By removing invalid move, improve the effective dynamic element, obtain a...

In order to achieve the damage effect, when the anti-tank missile hits the target in the top attack model, both precision and terminal impact angle should be satisfied. Firstly, a kind of proportional navigation law with impact position and angle constraint was deduced. Then, the top attack trajectory...

The traditional lacquer technology is a kind of crafts, by taking plant paint as raw material, using a variety of techniques to protect and decorate the object surface. The plant paint has the characteristic of environmental protection, pollution-free and renewal, and its material advantages can not...

On background of Energy Internet (EI) and active distribution network (ADN), a new type of smart controller based on low voltage carrier communication technique was developed, which could finish multi-interaction between the users and Power Supply Company (PSC) in aspects of energy flow and information...

Nonlinear transformation between the isoparametric and the Cartesian coordinates may make the elements more sensitive to mesh distortion. By using the second kind of quadrilateral coordinate method QACM-II, which can keep the transformation always linear between the area and the Cartesian coordinate...

Shale gas as an increasingly important form of hydrocarbon energy raises natural gas occupancy and reduces carbon emission in North American, attracting more and more focus all over the world. The main purpose of this paper is to identify the differences in cooperation network in shale gas research and...

Controlling the morphology of inorganic nanomaterials attracts more and more attention, due to the influence of morphology on the material properties and application. The nanostructures of nickel oxide (NiO) has attracted great interest because of its unique physical and chemical properties for a broad...

Research on knowledge dissemination model under the ubiquitous network environment has become a hot research in the field of distance education in the world at present. Starting from the standpoint of knowledge dissemination and starting with the change of system state, we attempt to propose a multi-dimension...

Metal doping carbon aerogels are prepared via polymerization of glutaraldehyde and chitosan with Ni(NO3)2 and Co(NO3)2 doping under freeze - drying method. The as - prepared product are carbonized at 900 °C in a nitrogen atmosphere. The obtained doping carbon aerogels were characterized by means of N2...