Advances in Engineering Research

Aiming at the limitation of the regression prediction method for mine gas emission, a chaotic time series prediction method for reconstruction of generalized phase space is proposed in this paper. This method is used to construct phase spaces for time series with unobvious chaotic characteristics and...

In this paper, it is established the model of air-conditioning system and a simplified model of cooling system in the vehicle. That model is based on the test data. One-dimensional model has been corrected by the three-dimensional calculation results. Therefore, the one-dimensional model also reflects...

Thermal spray technology is one of the key supporting technologies of remanufacturing engineering, and it is an important technical means to realize the rapid recovery of the surface dimensions of the damaged parts, to improve the performance and prolong the service life. In this paper, the main shaft...

Tube-contained raw material pipeline hydraulic transportation is a new energy-saving and environmentally -friendly technique of piped hydraulic transportation. In the paper, some pressure characteristics of tube-contained raw material pipeline hydraulic transportation under different discharges were...

The results demonstrate that the effect of elasticity in plastic zone on elastic-plastic fields is remarkable in many cases, while elastic volume deformation in plastic zone generally has been omitted in the solution procedures of the classical plastic theory due to the mathematic problems. The analytical...

For the actual situation that it is generally lack of classified protection experiments in the experimental teaching of colleges and universities, analyzing the relevance between each knowledge points and basic knowledge in classified protection, and proposed an experiment construction of classified...

There are many factors that influence part-filling pillars’ stability. In deep mining, the main factors are filling rate and the pillar’s internal friction angle that can influence the pillar’s plasticity area greatly in the process of filling pillar’s deformation and destroyment. This paper takes filling...

The Pinglidian gold mine locates at the Laizhou city, Shandong province, China. Up to 2013, the orebodies had been mined out, however, there is leaving mined voids of about 120,000 m2 and also leaving a large number of ore pillars. The residual pillars have to be recovered. In order to safely recover...

The supported heteropoly acid catalysts were prepared by loading Phosphotungstic acid on the MCM-41 molecular sieve via the impregnation method, which were characterized by FT-IR, N2 adsorption-desorption and applied in the synthesis of butyl lactate. The results show that heteropoly acids supported...

This study investigated the role of bis(p-sulfonatophenyl)phenylphosphine (BSPP) in stabilizing gold nanoparticles in 0.5×TBE aqueous solution. Gold nanoparticles were made by the method of reduction of tetrachloroauric acid by sodium citrate, and then they were coated with BSPP. After centrifugation...

An improved clival gate 4H-SiC MESFET with recessed drain drift region and recessed p-buffer layer (RDRP-CG MESFET) was proposed in this paper. The key improvement in this paper is the enhancement of the drain current and the breakdown voltage. The recessed drain drift region and recessed p-buffer layer...

In order to understand the deformation mechanism on the pipeline in steep longer distance seams mining, taking one coal mine as case study, where the gas pipeline from Shanshan to Urumqi, in China is laid across. FLAC3D was adopted to study the deformation mechanism on the pipeline. The simulations reveal...

This paper discusses results of analysis from geotechnical database collected during field mapping of shafts in weak/soft rocks of Abu Hamour tunnel project area of South Doha, Qatar. Shafts are connected to the main tunnel by short tunnels – adits, excavated using sequential excavation method. Shaft...

Now China is ushering in a "digital city" "Digital Communities" Construction and "low-carbon economy" boom, 3G technology and Internet application development for smart home also play a very important role, and intelligent home can the effective realization of "low-carbon economy," "green economy", smart...

This paper combines the mobility protection and construction practices on traditional dwellings in Zhongjie Street, Shenyang to explore the regeneration design methods of traditional architecture, trying to discuss the regeneration design from the perspective of the fusion of old and new architecture...

The community structure is one of the most universal and important attributes of complex network, and the community division research of complex network is to reasonably divide the community structure practically existed in the complex network. Apply the thought and theoretical method of supernetwork...

In order to solve the general exist problems of visual based tunnel disease inspection such as low level of automation and intelligence, using a high cost performance tunnel disease inspection device to have high precision automatic analysis and evaluation on the face of tunnel across time and space,...

Construction industry has been developing rapidly around the world. One of the problems in construction management is construction waste. It has major impact on cost, time and quality of construction management. The aim of the study was to examine the correlation model of construction waste cause to...

Renewable energy is a limited energy source that involves of sunshine, wind, and water. It’s normally used as sources of renewable power plants. Despite of its advantages, these power plants also contribute some disadvantages, such as high generation costs, highly dynamic behavior, etc. The disadvantages...

The usage of unified devices in the spacecrafts and aircrafts allows reducing the cost of their production, but at the same time leads to the problem of unified device characteristics harmonization with systems of a unit under design. In on-board aircraft thermocontrol systems, which ensure given temperature...

The material properties of living tissue are subjected to uncertainty according to several factors such as ageing, disease, nutrition ... For example; the bone is a composite structure containing organic and inorganic components. Inorganic components are essentially responsible for the compression strength...

The experiment was carried out for the determination of rutin content in Oriental arborvitae by high performance capillary electrophoresis method. The borax solution as buffer solution was chosen, and its concentration was 20 mmol/L at a constant voltage of 20kV and injecting time of 10s. The detection...

Saliency detection acts as an important role in many computer vision tasks. We propose a novel bottom-up, object-level saliency detection method based on global color and space contrast. The proposed method not only considers the global color contrast of the image but also takes the space information...

Shield machine is the large electrical equipment in the tunnel construction, the power quality is directly related to the construction safety and economic benefits of the project, aiming at the shield equipment on Power Grid Reactive Power impact situation, serious harmonic pollution, this paper designs...

The selection of an ideal living environment is a complex process that involves multiple attributes, which makes the decision of an appropriate living environment difficult. Hence, a suitable assessment model is needed to solve the complexity. The multiple attribute decision-making methods-Fuzzy Delphi...

Along with the rapid development and application of modern intelligent technology, people hope to use intelligent terminal to query related information of scenic spots before travelling, therefore, they hope intelligent technology and service can be provided in scenic spots, and accordingly, information...

Increasingly developing technology has opened up new opportunities in various aspects of life, including in military operations. The research focuses on developing to detect Yolo and Wifi signals using drones as a search and rescue tool for missing soldiers on the field of operations. The loss of a soldier...

3D printing technology based on the extrusion material method is rapid manufacturing and has complex accuracy, which supports industrial progress. The selection of printing material (filament) is essential in obtaining mechanical, chemical and thermal properties. In this study, the use of ABS and PLA...

The purpose of this study was to characterize AgNP, and determine antioxidant and antibacterial activities. This research is exploratory descriptive research. The characterization method used PSA (Particle Size Analysis) and FTIR (Fourier Transform Infrared Spectroscopy). The antioxidant activity method...

Innovative applications based on AIGC have injected new vitality into e-commerce supply chain management, which not only greatly improves operational efficiency. However, the application of AIGC technology in e-commerce supply chain management also faces challenges. with the continuous progress of the...

Smart cities with artificial intelligence as the core have a profound impact on changing the way cities are built and managed. This paper mainly studies the innovative application of intelligent technology in smart cities from four aspects: intelligent transportation, intelligent security, intelligent...

Power conversion with transformer less boost inverters are crucial for enhancing standalone photovoltaic generating systems’ dependability, efficiency, and affordability. In order to improve system efficiency and power density, a unique transformer less boost inverter topology that does away with large...

The Arjonegoro Commuter Line Route Sidoarjo–Bojonegoro plays a crucial role in connecting densely populated areas and economic centers in East Java, including Sidoarjo, Surabaya, Lamongan, and Bojonegoro. This service is critical in supporting people’s daily mobility. Given that this service is still...

Monitoring and evaluating maritime resource potential is required to support the realization of Indonesia’s vision as the world’s maritime axis while increasing people’s lives from maritime activities. This study aims to evaluate the potential of maritime resources and analyze the relationship between...

An interesting simulation and animation of a robot arm movement by the iterated function system fractal model can be used to plan controlling the trajectory path of the very end of a robot arm to reach the target efficiently. The efficient way can be shown by the minimum number of steps and the minimum...

The possibility of using fuzzy logic in solar panels, which are a complex technical system, is being considered. Fuzzy logic allows you to easily and efficiently configure the controller in a nonlinear solar panel control system, ensuring its reliable operation by changing parameters, load and supply...

In this paper, the fiber glass board was treated with silicane coupling agent so that it could improve its waterproofness and alkali resistance, testing fiber glass after the infiltration treatment of silane coupling agent. And investigate the effects on key performance indicators of fiber glass by the...

The bus process forget to take public transportation card lead to credit card by bus, the need to specify recharge recharge outlets is not convenient and the card balance inquiries inconvenient. In this paper, the design and the one based on near-field communication (NFC) no card bus software, using...

In order to reveal the Lamb wave propagation mechanism, the Lamb wave detection of thin plate structure was investigated numerically. To this end, a finite element model was established and the corresponding boundary conditions, mesh size and time step were set. On this basis, the displacement field...

The effect of 5 factors, including roadway width, height, depth, lateral pressure coefficient and comprehensive stress of surrounding rock on the roadway stability by using the method of orthogonal numerical simulation experiment. The experiment results show that all these factors have an effect on the...

Base on the test method in EN 12572-1-2007, a finite element model of rock plate impact test have been established. It can solve the maximum stress and strain of the rock plate and the impact test equipment, analysis the structural failure point. By changing impact height, it can be used to solve different...

This paper presents a control strategy for wind turbines to enhance their fault ride-through capability. The controller design is based on pitch controlled variable speed wind turbine equipped with doubly-fed induction generator (DFIG). The fault ride-through is realized by injecting a crowbar with variable...

The effects of old and new pavement concrete cohesional strength by different concrete surface processing mode, types of interface agent and cycle of freezing and thawing were studied through experiments and theoretical analysis to test the old and new pavement concrete cohesional strength under the...

Considering the adverse effects of the multi-point input of large-span spatial structure, the SMA damper bar was designed to replace original bars in the structure. In this paper, there were two projects to replace SMA damper bars, one was replaced of some lower chord's bars, The other was replaced of...

Sustained-release and salt containing anticoagulation is a kind of admixture which can take the initiative to melt snow on the road. However, currently most of products on the market are foreign products, and few domestic products do not have a long-term effect. To enhance sustained-release and long-term...

When choosing product, those visual, auditory, tactile and other sensorial perceptions are the key factors deciding whether to buy it. And the product's function, shape, color and surface treatment is the key points that considered when conceiving. Through exploration on users psychological and spiritual...

Qingdao city has built lightning protection supervision system in 2013, and the system has basic information collection, daily safety management, lightning protection business data integration and the full information management functions of the ultimate decision-making analysis. The system not only...

10kv distribution networks of power energy assigned to users play part in an important role, generally conventional 10kv line one permanent fault will cause the whole route broke down. And we find the fault point is wasted time and energy . Recently, it’s possible that run intelligent high voltage electric...

In order to make a better railway transportation safety system and reduce the number of railway accidents, we establish a safety status index to assess the railway transportation safety level. We calculate the risk value by classifying the safety information provided by the China Railway in accordance...

The unsteady loading(dipole source) on the blade surface was calculated by a potential-based surface panel method. Then the time-dependent pressure data were used as the input for Ffowcs Williams–Hawkings formulation to predict the acoustics pressure. The blade frequency noise of submarine propeller...

The current transformer, as one of the basic electrical system components, by its accuracy and stability, ensures the metering, protection and analysis of the power system. The current transformers are wildly used since 1884, when the electromagnetic transforms were invented. Recently, the capacity of...

It is generally accepted that a major phase of the Earth's upper mantle is represented by ultramafic rocks, including olivine pyroxenites, dunites, and peridotites. Studies on the electrical conductivity of ultramafic rocks continue to attract a great deal of interest, and much progress in the study...

Recently, with the development of IT technology, the transition to the ubiquitous environment has been made so that various devices can be used to access information anytime and anywhere, and the computer can decide to provide useful services to the user. In this context aware mobile environment, context...

With the large scale development of the power grid, the refined asset management has become very important in the power grid enterprises. The traditional asset management mode is extensive which can not meet the requirements and needs from the power grid enterprises. In this paper, an improved management...

Methanol purge gas produced in the side reaction in the methanol productionwere the inert gas including H2, CO, H2O, CH4 and others, which was used to produce synthetic ammonia as an important part in circular economy industrial chain of Huangling coal chemical industry. In this paper, the process and...

The objective of this experiment is to investigate the effect of Maozhaocao polysaccharide on the thymus and spleen of Immunosuppressive Model Mice. Study the Immunosuppressive model of mice by using cyclophosphamide, for the large, medium and small dose of Maozhaocao polysaccharide, Mushrooms polysaccharide,...

Urbanization growth rate is the conversion speed of agricultural population to non-agricultural population along with the regional population structure transformation process caused by productivity development, modern scientific and technological application and industrial structure adjustment. In the...

The microstructures and mechanical properties of Zn-Al and Zn-Al-Ti alloys wires prepared by continuous casting and extrusion (CASTEX) were studied in detail. The Al3Ti intermetallics in Zn-Al-Ti alloy distribute homogeneously at matrix of Zn-Al eutectics/eutectoid phase, and can effectively refine microstructure...

With the development of road construction, traffic noise pollution becomes more and more serious. Sound barrier, an effective and comparatively inexpensive measure of controlling noise, will be developed to some degree. The sound barrier durability is a very complicated problem. It is influenced by structure...

The production of multi-layer insulation for spacecraft has formed a specialized unit production mode, which has made great progress in terms of production technology and methods.But because there are many types of products and low repetition rates, the production belongs to the production of single-piece...

For many urban inhabitants in Asian countries, Kampongs are residential areas characterized by lack of facilities and infrastructures. They are also assumed to be unclean because of the absence of domestic waste management. Taking a case study of the Kampung Sewu of Surakarta, this work aims to address...

The use of distributed generation (DG) plants, which includes renewable energy resources, allows to stabilize voltage levels, reduce losses in networks and to free couplings transfer capacities. Power quality can be enhanced based on DG in railroads power supply systems (RPSS), as well power supply efficiency...

The paper describes the conformation traits of Salers beef cattle raised in the Tyumen region. The studies were conducted on first-calf cows of different generations. The imported animals belong to the zero generation, their offspring belong to the 1st generation, and the grandchildren - to the 2nd genetic...

Different volume ratios of Al2O3 powder and copper powder are mixed, and a copper-based composite coating is prepared on a pure copper matrix by low-pressure cold spraying technology.The hardness and bond strength of the coating were tested, and the cross-section of the coating was observed and analyzed...

Synbiotic yogurt with purple sweet potatoes as prebiotics and Lactobacillus plantarum Dad 13 isolated from Dadih as probiotic has potential as a functional food, but it requires at low storage temperatures. Freeze-drying technique requires cryoprotectant as a protective product such as yogurt. The aims...

Using semi automatic manual flux cored welding methods, selection of 2.8 (V-100Mo) cored wire for overlaying welding in 36 (Q235B) steel substrate with different welding processes for multi-layer welding experiment. The deposited metal microstructure and mechanical properties of welding rod are analyzed....

Intelligent home has greatly changed people's traditional way of life, but at this stage most of its applications are in the user's home and the remote control support slightly is inadequate. For the status quo, using ASP.NET technology and MySQL database development tools to design and implement the...

Fuzzy factors in the helical gear reducer design are analyzed, and a multi-objective optimization model with minimum volume and maximum bearing capacity is established in this paper. For multi-objectives, single-objective optimal solutions are fuzzified to form fuzzy sets to establish the membership...

With the rapid development of science and technology in China today, nondestructive testing (NDT) has also made dramatic progress. The intelligence of testing process and foolproof of operation process is the most immediate embodiment of this progress, while most of the time such progress needs to be...

The numerical manifold method with special physical patch is used to deal with the seepage problem of turning point singularity caused by sheet pile. The method is applied to four engineering examples, and is superior to the finite element method, when the results are compared with the general finite...

The development of intelligent transportation system is an important strategy to solve the problem of traffic jam in big cities. At present, the intelligent transportation system has developed to the advanced stage, traffic data analysis, control and decision of rich data detection method for data provides...

Cellulose is abundantly obtained from plant however the main drawback it has to be extracted from its source and purified by chemical separation process to remove the hemicellulose and lignin. Certain bacteria such as Acetobacter xylinum produce cellulose during fermentation process. This technique is...

Soap is a product that is one of the people’s needs, used as a body cleansing agent, which is available in many forms and perfume that can be selected according to your needs. Natural soap products are rarely used in the market. Today’s soap products use a lot of artificial ingredients as their active...

Symbiotic microorganisms usually have the same secondary metabolite activity as their host. The aims of this study were determine the biodiversity of symbiotic microorganisms from Caulerpa racemosa grown in Lemukutan Island, Indonesia and evaluate their antibacterial activity. Thirty eight bacterial...

One of the most employed yet simple algorithm for cluster analysis is the k-means algorithm. k-means has successfully witnessed its use in artificial intelligence, market segmentation, fraud detection, data mining, psychology, etc., only to name a few. The k-means algorithm, however, does not always...

The development of the utilization of electrical energy sourced from the sun is currently experiencing very rapid development. The use of electrical energy sourced from the sun is not only used for industrial generation, currently the transportation industry also utilizes electrical energy sourced from...

Understanding water discharge processes in mountainous areas with large amounts of precipitation and high hydraulic gradients is important for disaster prevention and water resource management. In recent years, it has become clear that mountain bodies themselves have water storage functions in addition...

Ultra high performance concrete (UHPC) is a new type of cement-based composite material with superior mechanical and durability properties, which can reduce the self weight of the structure and prolong its service life. Based on this, a finite element model of 10 composite columns was established to...

Because of the active transit and complex road conditions, the construction road is prone to congestion and material scheduling challenges. As a result, this paper proposes an off-site material flow control method, as well as an on-site right-of-way-based transportation vehicle scheduling method, which...

This paper provides a comprehensive framework of project risk management as guidance for managing a project risk – to know, evaluate, control, minimize a project risk. We proposed a framework project risk management based on International Standardization Organization (ISO) 31000. Project risk management...

In the construction of hydroelectric dams, the efficiency of concrete transportation directly impacts the quality and timeline of the dam. Currently, concrete transportation scheduling still heavily relies on manual coordination, which makes it difficult to truly obtain the actual efficiency of the transportation...

Since the concept of City Information Modeling (CIM) was introduced, scholars in China have conducted extensive research and discussions on CIM, with the government also allocating significant resources to its development, achieving a breakthrough from non-existence to existence in CIM research and construction....

Anodizing is one way of coating oxidation on aluminum, which is carried out by anodic oxidation at room temperature with the help of an electric current so that a chemical reaction occurs so that a layer is produced that can protect the metal from the effects of corrosion. The objective of this study...

SSVEP based BCI system helps Tetraplegia patients to communicate and control devices based on Steady State Visual Evoked Potentials (SSVEP). Home automation systems are in huge need for the Tetraplegia patients to control home appliances like nurse calling system, lights, and Television sets by using...

In order to ensure the smooth flow of municipal roads and avoid a large number of demolition and renovation operations, the substructure of the Rama III to Outer Bangkok West Ring Expressway project is designed as a cap beam of portal pier, and the construction adopts the fully-suspended short-line combination...

This paper introduces a novel equilibrium optimizer algorithm designed for maximum power point tracking in permanent magnet synchronous generators operating under randomly varying wind speed conditions. The algorithm draws inspiration from controlled volume mass balance modes, enabling dynamic and equilibrium...

Audiences are exposed to more and more TV commercials of luxury goods, including perfumes. This paper analyzes TV commercials of female perfumes and fragrances from four luxury brands, namely Coco Chanel, Christian Dior, Lanc"me and EstŽe Lauder. By using content analysis method, This study discusses...

Taking an abandoned quarry located in Chengang town of Zhoushan city as an example and on the basis of investigating into vegetation and soil condition, the physicochemical properties of soil and plant community characteristics are analyzed. The results indicate: the physicochemical properties of the...

Distributed control systems with high nonlinearity and with uncertain characteristics, make the control development a very complex task. In the last period several control methods were developed, presenting different performances but there is still room for improvement. In order to overthrow the complexity...

Objective: After earthquake occurring in pastoral areas, due to the reasons such as many animals are dead, drinking water is polluted, the condition of food hygiene is poor, the weather is hot and the other factors, it is extremely easy to occur anthropozoonosis. The purpose of this study is to prevent...

In order to meet high precision and high reliability required for the permanent magnet linear motor servo system, a method that combined sliding tracking mode controller and the H disturbance compensator is proposed. The weighted integral gain sliding mode controller effectively solves the problem of...

Highway is an important transportation infrastructure,so it is meaningful to study it. Consider a toll highway having L lanes of travel in each direction and a barrier toll containing B tollbooths (B > L) in each direction.We establish the M/M/N system model based on the queuing theory, and get the basic...

Abstract. Objective: To observe and analyze the curative effect of the Trimetazidine joint with Metoprolol in the patients with heart failure and coronary heart disease, the treatment of patients with coronary heart disease with heart failure to provide certain reference. Methods: From May 2013 to May...

Based on the construction of intelligent electrical pilot in the state grid corporation of China, fully grasp the requirements of intelligent power demand management, intelligent network based on the research of smart grid-oriented Advanced Metering Infrastructure (AMI), we design and realize the family...

In order to ensure sufficient terrain information for the underwater terrain-aided navigation, a global path planning method based on Ant Colony Algorithm (ACA) is proposed. The concept of feasible region is firstly defined, and then pheromone representation, heuristic functions and pheromone updating...

Plastic hinge can be used easily to optimize the reinforced concrete structures, but compared with fiber element model used widely in general FEA software,it cannot present accurate solutions for some complex problems. In order to propose visualized results of structural damage for fiber element method,...

Control of chaos in a dual-ring erbium-doped fiber laser is studied by modulating the laser pump and its physical model is presented to induce the dual-ring erbium-doped fiber laser to a cyclic state and other dynamics states via adding a periodic signal to the pump. When one pump is modulated by a periodic...

Taking the 12108 working face 3-1 coal seam in Lijiahao coal mine as the engineering background, comprehensively applying roof borehole observation, multi-base point displacement monitoring, measuring the range of loose damage of surrounding rock and other measurements to get in-depth knowledge of the...

For research on the strengthening and repairing technology of the concrete flexural members, mechanical properties and deflection deformation of reinforced concrete flexural members are studied by means of several experiments which are pasted the carbon fiber cloth in tension section. This article made...

To ensure the seismic safety of existing buildings, the Taiwanese government has been pushing seismic retrofit of old buildings in recent years. In these projects, one of the most frequently used techniques is column-jacketing, which is accomplished by encasing existing columns with a thick cover of...