Advances in Engineering Research

Installation of displacement types of columns such as driven pile, sand compaction pile,lime compaction pile,and deep mixing column causes stress changes in the surrounding soil. The properties will change in surrounding soil. Strength of the surrounding soil will decrease,recover,and increase after...

Producing large-scale and uniform plasma in supersonic field is the foundation of researching cold Magnetohydrodynamic (MHD). The experimental system of capacitively coupled radio-frequency (CCRF) barrier discharge based on Ma3.5 double-throat tunnel is established, and the discharges in the condition...

In order to study the automatic door systems of factory workshop, and attain low cost and high reliability requirements, the automatic door systems was designed in the factory workshop, door size was determined, material selected and accessories on door was designed. The system was consisted of the main...

We report the photoelectronic properties of MoS2/CdS heterojunction films fabricated via rapid chemical vapor deposition (CVD) and chemical bath deposition (CBD). Silver-doped MoS2 thin films were deposited on prepared indium tin oxide substrates via CVD, and then CdS films were prepared on the surfaces...

This paper expounds the important status and characteristics of Hydropower Engineering Geological Information (HEGI) in the "Digital Hydropower" by the knowledge system, further analysed its two critical parts: the modern engineering geological investigation technology and geographic information system,...

According to the connotation of urban ecosystem health and the ecosystem situation in Foshan, the health assessment index system was constructed which including five factors of vigor, organization, resilience, ecosystem service, population health and the assessment standard was also determined. The index...

In this paper, we adopted natural rain experiment method to study the transformation of the change of raindrop speed and diameter with time and the results indicated that the rain intensity change strongly with time at the natural rainfall. At the natural rain,the raindrop speed mainly at 1-5m/s in different...

In the process of the detection method of network attacks in campus network, with current algorithm, there are defects such as high demand for data and low detection rate for model. Therefore, a network attack detection method based on improved Hidden Markov Model algorithm is proposed. Structure and...

The paper shows the results of studies conducted in order to determine the causes and mechanisms of the occurrence of such complicating factors as asphaltene-resin-paraffin deposits, mechanical impurities, salts, equipment corrosion. The analysis showed that factors complicating the operation of pumps...

With the continuous development of computer software technology, in order to develop the plant protection software which is more practical and more complete, people began to use computer software technology in the development process of plant protection software. In this paper, from the role of plant...

Vapor injection systems have been used on scroll compressor and rotary compressor. Literature about the use of vapor injection on reciprocating piston compressor are rare. In order to increase the application range of the piston compressor, based on the single stage circulatory system, a reciprocating...

With the rapid development of the internet, the classical internet public opinion (IPO) problem as an important social issue has been studied for several years. However, few of models are out of the dimension of differential equations. In this paper, a novel mathematical model for IPO problem based on...

The distributed SDN network has improved the scalability and reliability of controller. However, such deployment architecture introduces a new challenge to the load balancing of controllers when uneven loads distribution among controllers because of the static configuration between switch and controller....

One of energy conversion machine is four-stroke engine, that divided into two gasoline engine type and Diesel engine type. In a gasoline engine, the ignition system needs a spark plug. In this research, the researcher used a regular spark plug and platinum spark plug. The regular spark plug is a spark...

Life expectancy forecasting is an important instrument for evidence-based health policy and socio-economic planning since it reflects the intricate interaction between population health, environmental conditions, and availability of health care. Reliable forecasts allow governments and health authorities...

Fire causes serious damage to buildings and infrastructure, threatening social security. Early fire feature detection can effectively reduce the harm caused by fire. However, traditional fire detection methods have problems such as difficult early detection, high false alarm rate, high missed detection...

The nonlinear dynamic response of RC beams under impact loads exhibits typically characteristics of two stages: local and global response. The duration of the local response stage is extremely short, and the beam itself is featured with obvious inertial and shear effects, which makes the impact damage...

The mobile learning model designed to enhance collaborative ability and sciences process skills of students. This research aims to analyze the effectiveness of mobile learning model to improve sciences process skills and collaborative ability who were students programming statistics subject. One-group...

In this paper, in view of the big data era enterprise cloud computing applications, analysis the Windows Azure platform to build elastic cloud computing based on, including: Windows Azure platform, automatic telescopic application block and restriction rules, reaction rules and automatic retractable...

In order to resolve the imbalance between station and process in the car welding workshop, we use the industrial engineering methods to improve operation units of welding workshop in the X car factory. Firstly, we collect the data by observing the employee's job and shooting video and recording the state...

(-)-Dibornyl oxalate was synthesized by the reaction of natural (-)-borneol with oxalyl chloride under the optimized reaction conditions: temperature 35 , time 1 h and the molar ratio of (-)-borneol and oxalyl chloride 1.0 : 0.6. The reaction underwent in good selectivity as 99 % for target product which...

Based on the ship-based data in the Lianzhou Bay, an advection-diffusion model of pollution is established. The sharing coefficient field (SCF) and the responding coefficient field (RCF) are simulated by this model. The environmental captivity (EC) is calculated by the simplex method according to the...

Electromagnetic effect is a major disturbance of measured induced polarization data, and it seriously interferes with the induced polarization measurement and its application effect thus reducing the exploration depth. Therefore, to suppress and eliminate electromagnetic effects effectively is very important....

Considering the application of automatic assembly line, the required functions of manipulator are selected and the overall structure is designed including modeling and virtual assemblying. Meanwhile, the strength of some key parts is also checked. Finally, a simplified six degree of freedom (6-DOF) manipulator's...

This paper is with the purpose of catastrophe point identification and comparison between wavelet analysis and Fourier analysis on their effects of filtering, and apply it into the analysis of traction substation feeder current. First, we assess the differences between wavelet analysis and Fourier analysis...

In order to study the dynamic responses of long-span suspension bridge with CFRP cables, a suspension bridge with CFRP cables which span of 896m is designed. The dynamic responses of suspension bridge with steel cables and CFRP cables are analyzed by ANSYS software, the effects of structural design parameters...

Cavity ring-down (CRD) spectroscopy are attracting widespread interest in gas measurements, especially for gas metrology. However, there still needs more research about its metrological traceability to develop it as a primary method. We developed and assessed a high-sensitive cavity ring-down spectrometer...

With the progress of economic globalization and information technology, e-commerce also has made a fast development. Meanwhile, the information security in e-commerce industry is becoming more and more important. This paper described information security issues existing in e-commerce, and provided technology...

Tire as the only ground part of the vehicle, which is transmitted between the vehicle and the ground force of the media, with supporting the weight of the vehicle, vehicle running in different ground buffers, provide sufficient adhesion for driving and braking, provide adequate steering and direction...

This paper examines how feasible it is to utilize microbial induced calcium carbonate precipitation (MICP) occasioned by Bacillus pasteurii (B. pasteurii) to fill pores and cracks within mortar and thus increase the strength and consequent durability of mortar. In this study, different mortars were prepared...

It is known that optimization in a changing environment is a challenging task, for which the basic goal is not only to obtain the optimal solution, but also strongly adapting to the environmental changes and tracking the optimal solution as closely as possible. In this paper, a novel multi-swarm optimization...

In recent years, two-dimensional layered nanomaterials have attracted wide attention due to their unique physical, chemical, electronic and mechanical properties. Among them, ultrathin molybdenum disulfide nanosheets (MoS2-NS) are one of the important two-dimensional nano-functional materials. In this...

With the exponential growth of Internet data,the traditional stand-alone computational model has been unable to solve the real-time precise recommendation items in a complex and huge data,and the defect of traditional recommendation algorithm has become more obvious,this paper studies the collaborative...

This study addresses short-term traffic speed prediction for urban road networks, a critical component of intelligent transportation systems for easing congestion, optimizing traffic signal control, and improving travel efficiency. Using real-world traffic speed data, the performance of a Long Short-Term...

Cooling systems such as split AC are currently one of the devices widely used in commercial and residential buildings. However, high energy consumption, especially during peak loads, is a major problem that has a direct impact on energy efficiency and operational costs. Therefore, innovation is needed...

The current investigation indicated that the microstructure of the Al-7075/RHA/Al2O3 combination is altered by the utilization of the powder metallurgy method. This is accomplished by altering the granular sizes of reinforcements that are distributed across the substrate. Altering the various particle...

The adiabatic shear bands were induced in Ti6Al4V alloy with original equiaxed grain by compressing cylindrical sample with the strain rate of 50s-1 at 750 C and studied by using electron backscattered diffraction. Three regions of matrix, elongated transition region and ASBs, can be observed in the...

With the development of computer technology, multimedia technology is playing a important role in human's daily life and work based on computer technology, this Paper is starting from the history of multimedia technology, discussing the multimedia application, computer hardware and operation system supports...

SiC ceramic is a new ceramic material. For its excellent performance, it is widely used in the field of mechani-cal seal. It is used in the pump, blender and other equipment during the petrochemical, aerospace and other industries. In order to further improve the sealing properties of SiC ceramics, this...

In the paper, a magneto-mechanical coupling model is established to study the magnetic memory's magneto-mechanical coupled effect, and then the finite element analysis software ANSYS is used to simulate the relationship between the parameter of three kinds of pipeline defects and their magnetic leakage...

Food waste has become a common phenomenon in a family who has children need to bring up, the reason cause that happen is family normally would buy more food and keep in the fridge and easily forget the food expired date. To help the family solve this problem not only in finance but also from a moral...

In recent years, the power grid and its load structure has undergone great changes. Especially the interference of a large number of non-linear and impact loads have caused voltage waveform distortion, voltage fluctuations, and a series of power quality problems. Therefore, extensive attention has been...

Demand response can guide the demand side changing power mode, to achieve the purpose of peak load shifting, and load curve changes will inevitably affect the system's reliability. Taking the TOU price as an example, we discuss quantitatively the effects of demand response on power supply reliability...

In order to solve the lack in specific evaluation and comparison standards on planning projects of distribution networks, which are widely spread in Chinese grid companies, an optimization and selection method for planning projects of MV distribution networks considering categorization of project attributes...

Extraction salidroside with the aqueous two-phase system. Through several single-factor tests: Polyethylene glycol (PEG) molecular weight, the mass fraction of PEG, the kinds of salt, the salt mass fraction and ionic strength. Get changes Salidroside extraction rate. And, obtain the optimum conditions...

Microcomputer monitoring system for track circuit is used to monitor and record the operating state of the existing track circuit equipment. It also keeps a real time record of operating condition of equipment and provides accurate references for fault analysis. This paper introduces the design, debugging...

According to analysis of cores, rock sections, casting sections, logging data of Ordovician carbonate reservoirs in the Yubei area,reservoir rock in the study area include 4 types:mud micrite limestone,grain limestone,biological limestone and dolomitic limestone.In combination with core photos and imaging...

This article mainly expounded the general development situation of security technology of mobile communication system, analyzed the unsafe factors in mobile communication network, discussed the information security technology of mobile communication technology in four aspects of encryption technology,...

In order to research the mechanical properties of concrete under impact load, a splitting tensile test of concrete cubes was carried out under the impact load by using the drop test machine. A high-speed camera was used in test to record the crack development process of each specimen. According to box...

In this paper, the design of electrical plug box is discussed according the modular concept, its structure is analysed. The plug box is devisde, which is one module of a cabinet, using Solid Words. The cabinet is composed of bus board, modular power supply unit ( MPSU ), variable frequency speed regulation...

This paper considers the basic technologies of active removal of space debris from the geostationary orbit. For two of them: coupling of service spacecraft (SC) with the space debris item with the help of an arm of the service SC (rigid link) and capture of the space debris object with a net or a harpoon...

Coffee is one of the favorite drinks in Indonesia. The way of making coffee is brewing and using a machine. Most coffee machines use a manual system, so they are less efficient and less attractive. The purpose of this study was to design a coffee machine using a robotic arm. This coffee machine can a...

Perforation and fracturing parameters critically influence fracturing effectiveness, yet accurately predicting initiation pressure and fracture width remains challenging. This study establishes a comprehensive rock initiation criterion by integrating the Mohr-Coulomb and tensile truncation criteria,...

Construction projects involve multidisciplinary tasks, complex activities, and high levels of inherent risk. These risks occur not only during the implementation stage but also at every stage of the project lifecycle, and must be carefully considered to prevent additional costs and delays. The maintenance...

This study focused on computational fluid dynamics (CFD) investigation of a four-bladed marine propeller across a broad range of advance coefficients (J = 0.1–1.0). The simulations employed the Reynolds-Averaged Navier–Stokes (RANS) equations together with the k–ω SST turbulence model to evaluate thrust,...

According to the requirement of communication link simulation in the process of simulation experiment, this paper designs a framework of distributed communication simulation. The framework can dynamically load communication efficiency calculation model which exists in the form of a DLL for different...

Using Soildworks software, this paper constructed the geometry model of liquid chlorine tank, established the liquid chlorine tank model in the normal operation, identified various boundary conditions based on simplified assumptions, made meshing and simulated calculation on the tank and flange by employing...

The efficient coal mine dispatching graphics digital system not only t can realize the unified management of information resources, but also can make efficient and accurate policy decision through the feedback of information, which effectively solve the problem of information of insular islands in coal...

In this paper, Ni-cubic boron nitride (cBN) composite coating with different volume fractions (from 0.3 to 8.5 vol.% ) of cBN particle was successfully prepared by electro-deposition method on titanium alloy substrates. The effect of volume fraction of cBN particles and applied load on the friction and...

In order to improve the efficiency of Mongolian information retrieval, further research is carried out on n-gram-based retrieval unit with selected information retrieval model by combining the characteristics of Mongolian language. Selectable information retrieval model include Vector Space Model and...

A simulation training evaluation subsystem can't be ignored when an antiaircraft missile simulator is developed whatever type it is. Otherwise, the result of simulation training couldn't be verified. So one of key difficulties is how to design and realize its Interface Circuit when an antiaircraft missile...

The article describes the technology of combined metal-metal-polymer molds to cast plastic products. The economic feasibility of this technology is confirmed by comparing the processing layouts to obtain a mold for the same product, machining and using a metal-polymer as a forming surface material. The...

Tank-cleaning oil sludge containing about 68.59 % saturated hydrocarbon and 14.93 % aromatic hydrocarbon was degraded by P. aeruginosa NY3 in this study. The results showed that, the degradation of oil sludge by P. aeruginosa NY3 was preferred under aerobic conditions, and sufficient dissolved oxygen...

The microenvironment control in museum is the most important part in the protection of cultural relics. Aimed at the control of the microenvironment of cultural relics, in this paper, a new microenvironment control system is established which achieves the unified regulation of the microenvironment of...

Visual communication design is an important part of modern design, which is the main form of information communication in modern society. The existing design is no longer only satisfied with the function and the surface of the visual experience, but to consumers and viewers through visual language to...

Based on the difficult technical defect, measuring the amount of solidification shrinkage and the stress, we use the linear contraction-thermal stress In situ measurement equipment, designed independently by shanghai university, to study the solidification characteristics, such as linear contraction,...

Current standards in the field of self-propelled machinery for forestry require equipping tractor cabins with roll-over protective structures (ROPS). It is necessary to reduce the risk of operator's injuries caused by tractor rollovers or falling trees. This study deals with the investigation of forest...

Ground settlement laws and its control measures attract comprehensive attention in urban rail transit construction, particularly in soft soil area with shield tunneling method. Phase 1 of No.1 rail transit project in Ningbo is constructed by earth pressure balance (EPB) tunneling methods. In this paper,...

Computer numerical control technology is mechanical movement with digital information and work process control technology, data processing is the reverse engineering of important technical aspects, which determines whether the subsequent model reconstruction process easy and accurate manner. In this...

An industrial experiment and simulation modeling have been conducted in order to study process optimization possibilities. Regularities of multiphase agricultural technological process functioning on the example of harvesting transport system were the object of the study. The regularities appearing during...

The composite packaging bag is widespreadÿused in packagingÿindustry. In the past, the production of it is mostly done by manual, so manufacturer want to use automated machinery to improve efficiency and reduce intensityÿofÿlabor. The pneumatic and vacuum system as a important part of this product need...

The bottom of the crude oil storage tank is eroded by the sedimentary water for a long time, the main source of which is the ballast water in the ship's transportation. In this paper, sedimentary water was simulated with 3.5% NaCl solution.The structure of self-made ceramic particles modified epoxy coating...

A modeling research is conducted for a coaxial hydrothermal combustor. The single eddy-dissipation model and finite-rate vs. eddy-dissipation model are used comparably. The latter is proved to be more precise to reflect the flow-reaction feature near the nozzle and able to predict the ignition and extinction...

Ionic liquids (IL) have attracted recent more attention to consider adverse impact on living organisms and ecosystems. This study used took zebrafish as an aquatic living model for investigating the acute toxicity of benzothiazole-based ILs on fish. Zebrafish were exposed to five different concentrations...

Structural damage detection and diagnosis is a very important factor of the structural safety. In order to improve the application of artificial intelligence algorithms for structural damage detection, we try to wavelet analysis and artificial immune algorithm to combine the analysis by finite element...

Work as a lecturer is highly risk because of the workload, stress and unhealthy eating patterns or lifestyles as well as levels of welfare that are not proportional to performance demands. Recently, there has been an increasing number of premature deaths due to non-communicable or degenerative diseases....

In this paper, the digital modulation methods and their applications are reviewed, which provides a reference for the design and optimization of digital communication systems. Firstly, introduces digital modulation method of ASK, FSK and PSK modulation method and its characteristics. ASK modulation transmits...

As the core load-bearing system of modern large-scale buildings, complex spatial steel structures play a pivotal role in enhancing engineering efficiency and quality through intelligent optimization technologies. This paper addresses prevalent issues in current steel structure joint design, such as low...

Object detection and tracking technologies in robotics have gained prominence in industrial and warehouse processes, offering increased efficiency, safety, and productivity. Robots equipped with these technologies excel in replacing humans in repetitive tasks, allowing individuals to focus on more complex...

Brain necrosis in mice can be triggered by injection of streptozotocin (STZ), causing nerve cell injury that can trigger neurodegenerative diseases. Centella asiatica (L.) Urban is one of the herbs whose triterpenoid compounds have neuroregenerative activity, so it is widely used as Centella asiatica...

The demand for self-compacting concrete (SCC) has been growing due to its superior workability and ability to flow and fill complex molds without mechanical vibration. This research investigates the production of SCC using locally available materials in Bangladesh, focusing on generating a volume-based...

The wind is a natural resource that will always exist and will not run out. To convert wind into electrical energy that is useful for humans, it takes a Wind Turbine machine. Renewable Energy Design laboratory Untirta has a wind turbine called the Sultan Wind Turbine. This turbine requires a guiding...

Currently, parking management is implemented for four-wheel vehicles in the form of a barcode system printed on paper as identification of parking exits. This system has a weaknes i.e. the barcodes are easily damaged or lost. A parking system using an RFID card as vehicle identification with a reservation...

The paper studies the concept and characteristics of the information system general framework, designs a general development framework of web based information system, and gives the detailed design based on MVC pattern of the middle layer of the framework.

In this paper, the wind resistance coefficient of low-pressure steel core aluminum wire with different opening angle is measured by wind tunnel test under different wind speed conditions. The results show that when the wind speed is below 35m / s, the wind resistance coefficient of the wires with different...

Railway green construction is one of the important measures to realize the sustainable development of railway. At present, the research on the evaluation standard of railway green construction is still in the exploration stage. Based on the "green construction evaluation standard of construction engineering",...

A compound with cation chains and monomers, [Co1/2(bpbenz)1/2]+ [Co1/2(oba)] (1) (bpbenz =1,4-bis(pyrid-4-yl)benzene and H2oba =4,4'-Oxybisbenzoic acid) has been synthesized under hydrothermal condition. Single crystal X-ray diffraction analyses reveal that in compound 1, the monomer [Co1/2(oba)] anions...

This paper presents a multi-spectral infrared image processing method, including image recovery, radiometric and geometric correction. Image recovery including pixel filled, positive and negative dislocation correcting sweep, reverse sweep consistency correction, within spectrum response consistency...

We take heat transfer between water and air and heat dissipation capacity of bathtubs into consideration and discuss the influence of bathtub shapes on temperature. We keep the temperature of bathtub in 39 degrees Celsius.We assume that the bathtub's capacity is the same and try to find the best shape...

Underground mine gob area is a kind of potential geological disasters, this paper studies the formation and propagation of the Rayleigh-channel wave under the condition of existing mine gob area, using three-dimensional inhomogeneous isotropic medium wave equation and solving the elastic wave equation...

In this paper, necessary conditions for strong law of large numbers for -mixing sequences are obtained, which require low mixing speed.

In order to overcome the shortcomings of the traditional mixing device, a new type of multi-purpose fluid mixing device is developed which has the reasonable design of mixing chamber, baffle and flow structure through the principle of fluid mechanics. The new multi-purpose fluid mixing device can mix...

The freight demand on Daqin Railway is growing yearly, but the maintenance scheduling is almost based on field experience, which makes great impact on transport capacity. Based on maintaining theory, this paper focuses on modeling and algorithm, offering scientific maintenance scheduling for Daqin Railway....

The influence of partial substitution of Fe by Co on the glass forming ability and soft magnetic properties of the Fe71-xNb6B23Cox (x=1, 2, 3, 4) metallic glasses were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC), and vibrating sample magnetometer (VSM). These glassy...

MOIL Ltd. (formerly Manganese ore India limited) operates 10 mines. Out of this 7 mines are underground. Chikla mine is one of the underground mines. The mining method employed here is horizontal cut & Fill. The present paper describes the studies conducted to optimize the stoping parameters for better...

The reticle stage in lithographic equipment used to manufacture integrated circuits operates at nanometer accuracy during a scanning process. The modeling errors and external disturbances cause the coupling between multiple degrees of freedom (DOF) of the magnetic suspension short-stroke stage in a reticle...

Based on the piezoelectric and temperature effects of lithium niobate (LiNbO3) wafer, this paper presents a design of a one-port resonator-type interdigital surface acoustic wave-based sensing device with a wireless transmission function for measuring vehicle tire pressure and temperature. The sensing...

In the process of research on the characteristic detection method for large scale network attacks, due to the use of the current algorithm for large-scale network attack detection, it is unable to describe the attack characteristics of network attacks or detect in low accuracy. Therefore, an attack detection...

Aiming at the low accuracy of traditional forecasting methods such as linear regression method, this paper presents a prediction method for predicting the relationship between bridge steel box girder and its displacement with wavelet neural network. Compared with traditional forecasting methods, this...