Advances in Engineering Research

At present, with the rapid development of economy all over the world, the world's energy is in the condition of shortage. At the same time, there is a series of environmental pollution problems.At present,countries advocate the sustainable development all over the world , people hope to have a clean...

In order to understand the distribution characteristics and temporal change of mercury species in a sewage treatment plant,sewage and sludge samples were collected from influent and effluent of the Second Sewage Treatment Plant of Jiaozuo for 10 months.Atomic Fluorescence method was used to detect mercury.Total...

This paper concluded and analyzed the depiction that concerned concrete frost mechanism for many years. The main theories are phase change process of water into ice, the existence of water in the concrete forms and gap on the water hydrostatic pressure and osmotic pressure hypothesis, freeze-thaw critical...

Joystick is a critical equipment for human to interact with an environment in a tele-operation system. In this paper, a decoupled three translational degree of freedom joystick for tele-operation applying Permanent Magnet Synchronous Motor (PMSM) is designed. Then new control strategy based on position...

At present, the research is not enough for the correlation of loess strength parameter and freeze-thaw temperature difference in domestic.The paper aims how the change of freeze-thaw temperature difference influence the stress characters of remolded loess by consolidated drained triaxial shear test for.The...

This paper mainly introduces the application of nonlinear finite element method in dynamic simulation based on point model. In this paper, based on the traditional nonlinear finite method, the method of optimizing the tetrahedral mesh is proposed, and the mathematical model and calculation method that...

Based on the response characteristics, reactive power sources are divided into fast sources and slow sources. According to the thought of reactive power source buses partition and load buses merging, this paper proposed a power network secondary partition method based on the response characteristics...

Based on the construction project of Guangshan No.1 tunnel of Jinhong high-speed. The finite difference software is utilized to study the tunnel excavation with 3 different construction methods, the surrounding rock stress, displacement and plastic zone are analyzed. The influence of different construction...

The intensifying global aging trend has made fall risk among the elderly a critical public health issue. This study explores the dynamic evolution of environmental risk mechanisms and the collaborative optimization of intelligent technologies, highlighting the limitations of traditional protective measures...

To systematically assess the performance differences among various fiber materials, experimental testing and statistical analysis were conducted on 164 flocculent cellulose fiber samples from diverse production sources, aiming to investigate the distribution patterns and variability of key performance...

Stunting is a problem that we all face towards the golden generation of 2045. Stunting is a serious condition in children which is characterized by the child’s height being below average or the child being very short and his body not growing and developing properly. The problem of stunting is an important...

Polyaniline (PANI) has drawn demanding attention because of its inimitable conductive properties, ease of doping, easy synthesis, remarkable environmental stability, and versatile applications in various fields. The aim of this research is to synthesis PANI, explore and enhance its electrical properties....

To meet the high requirements of base station antennas, such as broadband, wide beamwidth and high gain, an improved dipole antenna array is proposed. Generally, the working frequency range of the conventional unidirectional dipole element cannot cover the 2G, 3G and 4G band (1.71-2.69GHz) at the same...

During operation, starting water separator's main stress is closely related to the stress of water wall outlets. Starting water separator suffers a long period of stress characterized as alternating stress and low frequency, which suggests that the loss is mainly in the form of fatigue. In order to analyze...

When the target is in a high dynamic motion, the target sends the downlink signal Doppler and its rate of change is very large, which brings a lot of problems. The phase-locked loop is a closed-loop automatic control system that tracks the phase of the input signal. In this paper, the basic principle...

A process automation system based on PlantPAx platform was developed for a lyocell staple fiber plant with annual capacity of 15000 tons. The system has realized simple operation and optimization of the plant, full-automatic startup and shutdown of the plant units, control and diagnostics of malfunctions,...

This paper provides a new scheme for wireless power transfer (WPT) technology based on magnetically coupled resonance. The technology is used to solve the problem of reliable power supply for the monitoring terminals of high voltage power grid (HVPG). Because the technology takes the magnetic field as...

The causes and mechanism inducing the breakdown and follow up displacement of an outflow pipeline off Penghu Islands, Taiwan was investigated. Based on the information illustrated in the high resolution side-scan sonar imagery, it was concluded that the breakdown of the pipeline was initiated by a large...

This paper discusses the innovation mechanism of the development of the low-carbon economy in Hebei province. Put forward: The innovation mechanism of the technology, which relying on the major project of Hebei Province to achieve low-carbon core technology breakthrough and the establishment of low-carbon...

This paper studies the organization structure, software architecture and the software compiler configuration process of Openwrt, and the transplant process of which will also be introduced detailedly on tiny6410 development board, and the 360wifi module is added to it; successfully created a WiFi hotspot,...

In this paper, we present an algebraic technique for computing the system reliability of a complex system. And we also studied the problem of inverting minimal path sets to obtain minimal cut sets of the complex system. We described efficiency of inversion algorithm by the use of Boolean algebra and...

Rainfall reduces the possibility of increasing landslide instability. In order to study the stability of landslides with multi-stage sliding surface under rainfall conditions, this paper studies the physical and mechanical properties of soils with different moisture contents through direct shear tests...

With the development of oil field into the late period of high water cut, the influence of casing damage on oil field development attracts more and more attention.So it's time to begin studying how to prevent and control casing damage. In the non oil layer casing damage well, 49.7% in A - B Interlayer...

The study investigates the impact of oil prices on firm level equity return in case of Pakistan over the period 1998-2014, as this relationship is neglected by the previous literature. By using the panel data estimation, the results of full sample indicate significant positive effect of oil price changes...

In order to reduce the water consumption of agriculture to relieve the contradiction between supply and demand in the Wohushan basin, this paper get the effective rainfall in typical years by analyzing the series of rainfall of many years in this basin, and then calculated the water requirement for growth...

The coke drum with a side channel at the beginning of cooling was simulated numerically using ANYSY, and the time history of the stress and strain fields were also acquired with indirect coupling method. The calculation results indicate that temperature stress and bending stress caused by the cold spots...

A second-order linear differentiator with small phase-delay and amplitude attenuation based on a fast synthesis function is presented for active vibration control in maglev systems. The discrete linear structure of the differentiator is given and its tracking and filtering ability is analyzed in time...

In order to solve the problem that the tip of the capillary after stretch is blocked, we need to deal with the tip to make the fracture occurs on the tip. A model is established to analyze the Mises stress in the capillary under the displacement load. Two bodies are assembled to apply displacement load...

The number of components states combination and the power flow calculation are main causes producing "computation catastrophe" of reliability assessment calculation about composite generation and transmission systems. The input variables of artificial neural network are reduced, learning samples are...

Liquid smoke is generated by condensing smoke from pyrolysis process of wooden material which contains lots of lignocellulose (lignin, cellulose, and hemicellulose). Liquid smoke is usually used as food preservation because of their antibacterial ability. There are two important compounds that make antibacterial...

In the domain of online advertising, particularly within the Pay-per-Click (PPC) framework, identifying fraudulent entities remains a critical challenge for the data mining research community. The inherent class imbalance—where fraudulent publishers represent a minor fraction compared to legitimate ones...

Mobile robot path planning is a key technology in the field of intelligent robotics, and its performance directly affects the autonomy and reliability of robots in dynamic environments. Traditional algorithms rely on accurate environment modelling, which makes it difficult to cope with real-time changes...

The concern for good power quality is increasing day by day due to great damage caused by power quality problems in terms of scrambling of data, malfunctioning and failure of equipment of public or industrial facilities. To reduce these effects, there is a requirement to improve the quality of power,...

The adoption of blended learning in this digital era is pervasive. The learning approach is considered as a solution to overcome the disadvantages of fully face-to-face and only learning. However, do science teachers have a sufficient level of understanding of blended learning in science classrooms?...

A series of low cycle fatigue tests under stress control were conducted for notched specimen of 022Cr17Ni12Mo2 stainless steel. The tensile test results show that the yield strength and tensile strength of the notched specimen are more than those of smooth specimen. The necking phenomena indicate that...

This paper focused on the torque distribution of master and auxiliary motor coupled driving system for the pure electric vehicle. With the minimum consumption of power as the target, the equivalent PESCM method was employed. The torque split maps of master and auxiliary motor were obtained .The simulation...

In order to solve the problem of deformation measurement of membrane structure, the method based on fiber senor array is proposed. Firstly, FBG (Fiber Bragg Grating) sensors are used to get the strain distribution of the structure's surface, and furthermore to obtain the curvature distribution. Secondly,...

The major seed storage protein 11S globulin from Juglans mandshurica Maxim. (JSG) was isolated and purified to identify its structure and analyze its physicochemical properties. JSG was found to be composed of two distinct major polypeptides with molecular masses of 23 and 20 kDa, and whose amino acid...

The purpose of this study is to calculate the reliability of the mechanical sand washing system. The basic principle and process flow of the sand washing system are introduced. According to the structural characteristic of the sand washing system, the simplified reliability model of the system is established....

With the expansion of the power information network scale, various network threats are also increasing. In order to excavate security threats in power grid by making full use of heterogeneous data sources in power big data, this paper maps heterogeneous data in different formats to a unified embedded...

As a direct power supply to the distribution network user side, the photovoltaic power generation has a positive effect on reducing line loss of distribution network. However the loss reduction of PV power is conditional. The photovoltaic power installation location and the generating capacityboth affect...

Molten steel temperature is a key parameter related to LF refining, and it has an important influence on steel quality and casting. Aimed at a steel ladle with capacity of 300 tons, a heat transfer model was developed. Ladle wall and bottom lining temperature distribution curve was obtained. The factors...

Based on the design features of cylindrical torsion spring, this paper established a multi-objective optimization mathematical model for solving the problem of nonlinear constraint, and used MIGA algorithm to optimize the design with the conditions of strength reliability. Compared to the initial design,...

In this paper, we study a new way to prevent indoor ground condensation by controlling natural ventilation between outdoor and indoor, it adjust to reduce the indoor dew point temperature lower than the ground surface temperature as much as possible, so to prevent condensation. Through make a typical...

The dynamic characteristics of a mega-frame model structure under ambient vibration was tested and analyzed. The article compared two methods of modal parameter identification: the Ibrahim Time Domain Technique (ITD) in time domain, and the Fast Fourier Transform (FFT) in frequency domain. Then verified...

This paper deals with the resolution of racemic -cyclohexyl mandelic acid across microemulsion liquid membranes system using tartaric acid benzyl ester as chiral selector, sodium dodecyl sulfate as surfactant and mixed solvent of n-butyl alcohol and n-heptane as organic solvent. The effect of several...

Shallow seismic exploration is the unique approach to obtain first-hand data of engineering geology for municipal construction. In this work, a mechanical shocking source has been designed for facilitating exploration of constructive stratum datum of urban construction. Aiming at the existing issues...

In view of the traditional Canny edge detection algorithm in the smoothing filter will make the image become blurred and threshold selection is not adaptive, and its defects in gradient calculation, this paper proposes an improved Canny edge detection algorithm. The algorithm uses adaptive median filtering...

The scarcity of land resources and human disorder expansion of land use constitutes the largest contradiction of social and economic development, while the intensive utilization of urban land optimal allocation become the core of the sustainable utilization of urban land. To explore city economic development...

Pectin is usually isolated using the conventional extraction methods are time consuming. Pectin from sentul peel has been successfully isolated by using Microwave Assisted Extraction (MAE). This method has a short processing time and little solvent needed. This study is aimed to determine the effect...

Support from various community groups for the sharia card is very important to advance card service-based sharia financing activities. This study aims to estimate the roles of the theory of planned behavior (TPB) and product knowledge in influencing millennial intentions towards the sharia card. By utilizing...

With the rapid development of all the modern IT and as well as people's living standards improve, there is higher requirements of their environment so that smart home emerged. At present ,air pollution is more and more serious,it has affected people's normal life. In this modern world, people pay attention...

A series of organic-phased TiO2 nanotube array electrodes were synthesized with different water content, voltage and time by anodic oxidation of Ti foil in C2H6O2/NH4F/H2O electrolyte. The structure and optical properties of the TiO2 nanotube array electrodes were characterized by scanning electron microscopy...

Annealing treatment is carried out for the TA2-2A12 explosive composite plate under the heating temperature of 440ºC and 480ºC with duration time of 1h, 3h, 6h and 9h respectively. The microstructure and mechanical properties of composite plate are investigated after annealing. Results show that recovery...

In large electric power data acquisition system, huge meter, data collector, concentrator real-time message processing and timely rapid response to database system efficiently, presents a high technical requirements. At present, single disk database is very difficult to meet the demand of high efficiency...

Train Operation Control System is a typical Cyber-physical System which is combined with sensors, decision-making control unit and actuators. There are more and more sensors are used in railway, as a result these sensors produces Big Data stream data. In view of this situation, we propose the architecture...

In order to realize the architectural benefits (increased system scalability, decreased workload, and etc.), the security of the IMA architecture should be put on the first position. IMA architectures utilize shared, configurable computing, communication, and I/O resources. These architectures do lots...

Based on Density Functional Theory, we investigated the optical structures and the electronic properties of Cu doped SnO2 with density of 4.35%, including band structure, the density of state (dos), reflectivity spectrum and optical absorption spectrum. The results show that Fermi level access conduction...

This paper mainly discusses the cloud computing in the library and should pay attention to the use of the advantages and problems in the application, and the paper puts forward the mode of constructing library information platform based on cloud computing, analyzes the basic architecture of cloud computing,...

By dint of isotope data of the atmospheric precipitation and NCEP reanalysis data, the changes characteristics of precipitation in Baotou were analyzed. It showed a positive correlation between the weighted average of 18O and precipitation, which was related to the semi-arid climate of Baotou. The slope...

Creative lamp also has a relatively high popularity rate, while because of the issues like larger volume, inconvenient carrying as well as dizziness glare caused by improper operation, they equally provide development opportunities and prospects for the creative lamp industry. With the development of...

The need to ensure sustainable development of the agricultural complex in the face of increasing aridity, as well as the need to reduce product contamination with xenobiotics, makes agricultural producers turn to the achievements of environmental science and practically use the general patterns of the...

The article provides a brief overview of the historical stages of the development of geographic information systems and describes the experience of their use in ecological and faunistic studies. The examples of using GIS for the ecological, geographical and spatial analysis of different groups of animals...

Based on bi-modulus theory and experimental test, the elastic-plastic model of bending bi-modulus graphite beam is established in this paper. According to the results of material test, the graphite is demonstrated to be a bi-modulus material with the ratio of compression modulus to tension modulus being...

The distortion of transmission signal ,when passed through the channel of the Expendable Conductivity-Temperature-Depth (XCTD) profiler under the influence of the probing depth, transmission frequency, random noise and other factors, will be more serious. And it will affect the stability and accuracy...

Digitalization is greatly influenced by technological developments, such as advances in computerization, data storage, communication networks, and software. Currently, digitalization is also used by cooperatives to be much more modern and practical. The purpose of this study was to carry out digital...

Transportation is becoming increasingly important for economic development. In recent years, China has made some achievements in the field of transportation. However, compared with the U.S., there are still certain shortcomings. The purpose of this article is to explore the similarities and differences...

The increasing number of vehicles in an area is the cause of road damage. The load from these vehicles can cause deformation in the road layer, especially in the asphalt concrete-wearing course (AC-WC) layer. Improving the quality of road layers requires materials that meet specifications and additives...

As a product of the infrastructure era, old buildings have impeded urban renewal. The uneven level of construction technology in the past has led to the unpredictability of whether various old buildings can continue to be used and accept the reinforcement treatment. In order to solve these problems,...

Spinel-type metal oxides, magnesium-manganese- titanium oxide (Mg1.5Mn0.25Ti0.5O3) was prepared by a solid state reaction crystallization method. The acid treatments of MgMn0.25Ti0.75O3 caused Mg2+ extractions of more than 74%, while the dissolutions of Mn4+ and Ti4+ were less than 9.0%. The experimental...

Lightning electromagnetic pulse is strong electromagnetic interference sources, along with the rapid development of information technology, it has all kinds of hazards of electrical and electronic equipment, communications equipment becoming more serious; interference with normal radio communications...

In order to optimize the efficiency-cost ratio, a stepwise purchase model that can finish the quota of equipment reserves within a given time is established based on the parameters of equipment life, production capacity and price, and the optimum efficiency-cost ratio of purchasing is achieved through...

In this paper, the principle of time-domain two-dimensional acquisition method is described, and the effects of symbol offset and Doppler frequency estimation error on the correlation peak are analyzed in detail, so as to determine the size of pseudo-code phase and Doppler frequency step. It is of reference...

the problem of environmental protection is a hot topic in recent years, the sewage treatment is an important aspect of environmental protection.In view of China's current sewage treatment problems, a new MBBR filler for MBBR process can improve the sewage treatment effect.

This paper determined calcium and magnesium in bioleaching solution of uranium ore by optimized EDTA method. This method used acid chrome blue K-naphthol green B mixed indicator after adding reducing agent hydroxylamine hydrochloride, masking agent triethanolamine and masking agent L-cysteine. This method...

Artillery firing recoil movement characteristics concerns artillery firing security and the play of its operational effectiveness, which is the key issue that artillery designers and users focus on. To solve the problems of traditional and modern simulation analysis methods applied to artillery firing...

This paper uses a queuing model of multi-server system to offer optimal airport wheelchair service which minimizes the cost and offers service of high quality. It addresses the performance of airport wheelchair service associated with the waiting time of passengers who need the service. According to...

The study was to estimate the livestock and poultry breeding (LPB) non-point source pollution load in Sichuan province and provide support for control of LPB non-point source pollution. In the study, an improved export coefficient method was proposed to estimate LPB non-point source pollution loads from...

Urbanization needs the sustained and healthy economic and social development as the premise, the coordinated development and healthy development cannot do without the ecological environment. The coordinated development of ecological environment requires scientific and effective control and prevention...

Faced with the deteriorating ecological environment, people began to apply the principles of ecology to urban landscape planning and construction, which make a number of methods of ecological planning and design. Ecological restoration design is one of them. This paper indicates the background and connotation...

Along with the mixed population, people lost their own dialect in the process of popularizing “Putonghua”. In order to protect this kind of traditional culture, more and more researchers have entered into the protection of endangered languages. But some of the current protection work is carried out manually,...

Vehicle seat rattle noise is one of the common issues in automotive. In general, BSR (Buzz Squeak and Rattle) noises are directly linked to the vehicle NVH (Noise Vibration and Harshness) performance. Most importantly, customers perceive BSR as direct indicator of vehicle build quality and durability....

The thermal barrier coatings of NiCrAl•Y2O3 and NiCrAlCo•Y2O3 were fabricated on the inner surface of low carbon steel tubular components via a novel high-energy mechanical alloying method. The microstructure, elemental distribution and phase composition of the prepared coatings were carefully investigated...

Gallium nitride (GaN) has attracted much attention for a long time as a promising material for semiconductor device application in the transistors, visible light-emitting sources and high powder diodes. Many investigations are paid to the synthesis method, the process of crystal growth, structure and...

People who work in highway toll station is suffering serve air pollution, due to where vehicles are crowded. So it is important to study the air pollution in highway toll stations. In this study, two toll stations in Dalian were chosen to measure the CO, PM10, NO2 and total hydrocarbon (THC) inside and...

We studied an impact of the technological processes, used for forming С/Сu composite coated surface of medical implants, on the mechanical characteristics and biocompatibility of resulting coatings. These implants, designed for temporary functioning, were made from X12CrNiTi18-9 stainless steel by ion-beam...

Building a multi-level, multi-functional, highly effective forest compound ecological system is the important measure of developing the limited land resources and revitalizing the valley economy in mountainous areas. It is also a main development direction of mountain forestry. This paper summarizes...

Secondary Surveillance Radar (SSR) is a flight surveillance facility whose function is to monitor and supervise aircraft movement activities in the air. This guide aims to: 1) design a radar that collects aircraft information, 2) create a tool that can be useful for cadets learning at the Makassar Aviation...

An automated power factor correction system can optimize energy efficiency and reduce costs for a single-phase household load of 2200 VA. Voltage-current phase differences can be corrected using automated power factor correction devices, such as capacitors, greatly enhancing power factor proximity to...

This study investigates the impact of grouting measures on the overburden thickness of the Yuxi River Tunnel. Using theoretical analysis, engineering analogy, and numerical simulations, the research determines the minimum safe overburden thickness. Results show corrected thicknesses of 9.6m without grouting...

With the rapid development of the power electronic technology and control technology, the use of the IGBT, IGCT full controlled devices consisting of a voltage source converter (voltage source converter, VSC) in the DC transmission system has been widely used. However, rapid response of power electronic...

In this article, the study assessed ZnSO4-7H2O [Zn], Pb(NO3)2 [Pb], CdCl2-2.5H2O [Cd], and set the S.obliquus as biological indicators to study the toxicity of binary mixtures after 96h by trace analysis methods. The results showed that the relationship of toxicity among these compounds as follows: Cd>...

In this paper, the composition and principle of the existing spread spectrum measurement and control system are analyzed, and the characteristics of the signal Doppler shift and noise are discussed. The general concept and theoretical basis of the spread spectrum signal processing are established.

Through researching the internal organizational structure of Word 2007 document, the significant component documents are extracted, including document.xml, style.xml, header.xml and footer.xml. The compositions structure and the interaction of the common document formats in each XML file are analyzed....

With the development of human science and technology, modern life rhythm speeding up, people's demand for intelligent in improving. Using intelligent machines instead of manpower, reduce human labor burden and improve the work efficiency has been becoming the current hot. Taking STC12C5A60S2 single-chip...

In this paper, the traditional high fuzzing blindness, code coverage is low, low efficiency and other shortcomings of the test case generation process a study by introducing symbolic execution techniques proposed test case generation method based on symbolic execution of the dangerous path, the method...

A brake energy regenerative strategy was introduced in this paper after the analysis of brake torque distribution and maximum battery charge power within the ECE regulation scope. Studying on efficiency of regenerating energy under different driving conditions,the models and simulations of the energy...

Audible noise generated by the corona of HVDC transmission line has become one of the major considerations in the design of high voltage transmission lines. To research audible noise space propagation characteristics duo to HVDC transmission lines is very important for the analysis of the spatial frequency...

The outlook of Dongxiang area in Gansu province has been experiencing rapid changes with the acceleration of urbanization in recent years. A study needs to be conducted on local traditional architectural settlement to figure out how to realize “localization of modern architecture and modernization of...

Seismic refraction has long been adapted for various types site characterization studies. The method has evolved from the classical theory based on Huygens's principle involving straight propagation paths representing spherical wave front heading direction into many novel considerations involving curved-ray-path...