Advances in Engineering Research

The rapid development of UHVDC power transmission makes the proportion of external power accepted by provinces increase significantly. This paper aims at analyzing the relevancy of UHVDC power transmission and provincial power source construction from two aspects of reliability and environmental protection,...

Dopamine receptors (DAR) involved in the regulation of many important functions in the brain as the targets of neurotransmitter dopamine(DA), especially in the aspects of motor control, learning and memory, cognition and drug addiction. But there are still a lot of controversies in the regulation of...

The integral mean value theorem is an important theorem in higher mathematics. In this paper, we give extensions of integral mean value theorem. Based on this, the examples of limitations calculations, estimation and integral inequation proof are given in the paper to provide some references for the...

Due to interaction of upstream runoff and open seas tidal current, the direction and velocity of water flow in tidal reach is variable. Plus non-periodic surge resulting from such factors as large rise and fall of the river bed and meteorological factors, water flow moves more complexly, so it is a section...

With the continuous development of the economy, the development of our country's science and technology has entered a new phase. Subsequently, the power ultrasound technology has been optimized, among which the vibrating system has played an important role, mainly including the ultrasonic transducer,...

After fully occupied with working and other potentially stressful activities during the weekdays, people need to release the burden in themselves. Therefore, hypothetically the type of activities, time to conduct the activities, duration of the activities and the mode of vehicle used to reach the place...

Adopting the idea of mathematical modelling, this paper studies four problems of open-end fund investment. For problem one and problem two, (0-1) programming model was used to find the maximum profit under certain investment fund conditions. For problem three, after increasing the factors of investment...

Now pesticide spray is an effective means to ensure and eliminate crop pests and diseases increased yield, but also impact on the ecological environment, food security, and so prediction of the amount of application of pesticide is an important topic in the current research. Therefore, this paper puts...

The adsorption and binding mechanisms of chloride ion in sea sand mortars were investigated through measuring the water-soluble chloride ion content in this paper. In addition,the microstructure of Friedel's salt were characterized by three approaches : X-ray diffraction (XRD), thermal analysis method...

In this paper, the data of soil erosion from Mangya, Lenghu, Xiaowouhuo, Golmud, Ulan and Da six Dan Chai ecological monitoring stations monitoring data ranged from 2005 to 2015, and MODIS and GIMMS remote sensing monitoring NDVI values from 1985 to 2015. This thesis researched characteristics of the...

This paper based on the monthly precipitation data of 9 surface meteorological stations in the Hengyang basin for 53 years (1960 to 2012), by using the methods of Morlet wavelet transform and Mexican hat wavelet analysis, the multi-time scales of precipitation of the Hengyang basin has analyzed. The...

This paper presents a color image segmentation method using modified GrabCut. GrabCut is considered as one of semi-automatic image segmentation techniques, since it needs user interaction to initialize segmentation process. To eliminate this inconvenience, this paper propose using Expectation Maximization...

Analyzes the ground adjustment ability in thermal equilibrium of the GSHP system during intermittent operation of 1:1 and 1:2 in summer through experiments. The result shows that the intermittent operation of 1:2 can maintain good heat transfer efficiency and better achieve restoration of the soil temperature...

Underwater acoustic sensor networks (UWASN) is an important tool of human to monitor the ocean. However, the existing routing has problem of low packet delivery, the long time end to end delay and the redundant packets. A new routing IGDAR is proposed in this article. The IGDAR select candidate node...

The reliability issue of the FinFET is studied in details in this paper by the forward gated-diode R-G current method. Extraction of the stress induced interface states and oxide traps of FinFET is performed from a series of the R-G current measurement and developed physics expression. As the result,...

Bioflocculant is a kind of natural polymer flocculant having a broad application prospect. Because it is non-toxic, biodegradable, no secondary pollution, etc, more and more attention is paid to its unique properties. The sorts of microbial flocculants are introduced briefly, and it also introduces the...

The sewage diffusion is an environmental material for marine environmental protecting. It plays an important role in port engineering now. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and sewage marine disposal project in...

Several key factors such as water binder ratio, dosage of water reducing agent, sand cement ratio and volume fraction of steel fiber affecting preparation and properties of reactive powder concrete are analyzed. The test results show that water binder ratio is one of the most important factors affecting...

The rising behavior of single bubble is investigated in 0.134 Eo 8.588; 0.82 We 4.83 and 0.5 Ta 3.6 by means of CLSVOF method and CSF model. The new empirical relations are obtained by comparing experimental data, simulated data and the empirical relations of scholars. The three formulas can describe...

In the subway tunnel engineering, using different methods of tunnel excavation, the different influence on the stability of surrounding rock above class IV. Therefore, this paper is based on the specific engineering example. A subway tunnel in Dalian using FLAC3D software respectively adopts the CRD...

A linear equations related to the position errors of the contact point on the tooth surface and the mounting errors was derived from calculating total differential of equations of meshing. The sensitivity of gears mounting errors to contact point position errors was studied by means of the singularity...

Modern housing is not only a concept to satisfy the demands of “residence”. Human beings have started to expand and extend toward the essence of living. As a way of emotional sustenance and expression for modern people, soft decoration has been gaining its popularity in the industry of soft decoration...

A transmission method of magnetorheological(MR) fluid in disc type driven by shape memory alloy (SMA) spring with the thermal effect was proposed. The torque changed at difference temperatures. Based on the thermal effect of SMA, the expression for displacement of SMA spring was established and the rheological...

Based on the wind farm operating data of acquisition and analysis in real-time, analyzing the regional relativity and output volatility of wind power situation. Through the cooperation of the regional relativity and output volatility, we can know the relationship of the regional relativity and output...

Purpose Observed and analyzed the curative effect of Shenqi two thistles Er Zhi decoction in the treatment of IgA nephropathy of qi-yin deficiency. Method Used 80 cases of IgA nephrosis patients treated in our hospital from January 2012 to January 2014 as the research object, divided into two groups,...

Although motor synchronization control system has already met high precision and high synchronization control based on virtual main spindle and relative coupling, it’s time-consuming to set parameter when most popular algorithm PID is applied in speed compensators to control relative coupling. To solve...

Network intrusion detection has been intensively investigated in recent years. In this paper, we propose an adaptive method based on ant colony clustering to discover unknown attacks. The focus of the method is the clustering process of an ant colony movement. The structure of the intrusion detection...

At present, the functions of outdoor fitness facilities are single, and the modeling is stiff and bulky, so the user experience is very boring. The interaction design can not only enhance interaction between fitness facilities and persons, which add lively and interesting experience to users, but also...

The S-CO2 Brayton cycle is widely used in any fields now. It mainly consists of four components: compressor, condenser, evaporator and Turbine. The exergy destruction and irreversibility analysis about this kind of system was presented, which is applied in the marine engine heat recovery system. The...

Friction Stir Welding (FSW) is an environment friendly solid-state joining technology that uses a rotating tool to generate frictional heat and plastic deformation with mixing of the soft material by the pin along the welding line. The advantages are low distortion, lack of traditional defects commonly...

Generator set and its control system are the most important dynamic components in power system. It has a vital effect on the safety and stability of power system. In order to ensure the safe and stable operation of power system, we must strengthen the monitoring of power generation units and control...

Eigen-beam beamforming technology is a kind of theory to achieve the demanding beam pattern using the linear combination of soundfield decomposition based on plane wave decomposition theory. The eigen-beam beamforming technology is analyzed and the array optimization is reformulated as the beamforming...

As one of the alternative fuels for petroleum, biofuels are an important part of biomass and play an important role in ensuring energy security, coping with climate change and building ecological civilization. This paper selects the Web of Science Core Collection database as the data source, uses the...

The widespread use of chitosan waste shrimp extract to reduce the toxicity of certain heavy metals can reduce the escalation of the potential threat of environmental pollution. First) shrimp shell processing is intensively done so it is not wasted freely into the environment, second) toxicity of heavy...

In the context of big data, machine learning plays an important role in many fields. With the increasing scale of power system and capacity of power grid, it becomes more and more complicated to accurately evaluate the transient stability of power system. In this paper, a power system transient stability...

Both the construction of ecological civilization and the project management are widely concerned by people. This paper’s purpose is to analyze the relationship between project management and ecological civilization construction, and research how to strengthen the construction of ecological technology...

In order to solve the problem of low efficiency in dealing with large numbers of queries in Hive, we propose a multi-queries region clustering (mqrc) method to improve the overall performance of Hive. By clustering the query set, we divide the query with high similarity into a set. Each group generates...

Choose soybean oil as raw material, through transesterification, epoxidation reaction, synthesized a new epoxy plasticizer - epoxy low calorie oils(ELCO), which molecular weight is somewhere in between ESO and EFAME, so it should be an excellent plasticizer product. Through the testing of some performance...

The traditional vehicle navigation path recognition model based on PID realizes the intelligent vehicle path control based on precise mathematical model, which has low robustness and poor intelligent control performance at high speed. Therefore, the design of intelligent vehicle navigation path recognition...

Based on the economic reasons, the agrarians refused to apply organic fertilizers on arable land. Nowadays, to obtain high yields of agricultural crops, agrochemicals have been actively used, which led to organic matter shortage entering the soil. Straw, as a by-product, is usually removed from fields,...

The article deals with the problem of the content of toxic elements: cadmium (Cd), lead (Pb) and arsenic (As) in artesian wells of Chervlennaya (Shelkovskiy district), Naurskaya (Naurskiy district), Petropavlovsk (Grozny district) of the Chechen Republic and their impact on the health of the population....

Emoticon is the visualization symbols as the representation of emotion and usage in social media cell-phone for communication. This article aims to develop the new design of traffic signs by modification emoticon symbol. The traffic signs symbolizing the distracted driver behavior because influenced...

In order to improve the link throughput of OFDM system in aviation broadband satellite, it is possible to combine the AMC to complete the modulation and coding of the signal. This paper established an AMC link model, including the movement model of aviation satellite, wave beam model of AMC, the way...

With the vigorous development of power transmission project, the security and stability of power transmission lines appear to be more important than ever before. As one of the most significant devices in power transmission lines, the security guarantee of power cables is of great importance. Therefore,...

The Second Type Reservoir; Fracturing Timing; Selection of Wells and Layer. Abstract. The length, number of layers, plane and longitudinal heterogeneity of injection wells of the second class reservoir are serious. The fractures are used to relieve the contradiction between the plane and the strata,...

We present a deterministic algorithm in time on input a dual HKZ-basis of a lattice of rank n to nd a point whose distance from at least , where is an integer, , is the input size, and is covering radius of . This provides a method to approximately nd a deep hole. Furthermore, we study the relation between...

Methods used for the determination of copper content in pyrotechnics are mostly based on traditional chemical method, which is lengthy and cumbersome. If inductively coupled plasma emission spectrometry or atomic absorption spectrometry are used to determine the copper with high content,the sample solution...

Foam Glass-ceramics were prepared by one step method, the blast furnace slag and waste glass were used as main raw materials,Na2B4O7·5H2O was added as flux .the Effects of Na2B4O7·5H2O on the pore size distribution, the bulk density and compressive strength of foam glass-ceramics were studied. Experimental...

Localized binary model (LBP) is an efficient local feature description operator. As a nonparametric description operator, it has received more and more attention and has achieved great success in the field of face recognition. In this paper, we introduce only the first-order non-directional feature of...

The combustion of organics and fossil fuel have led to higher greenhouse gas carbon dioxide production and making global warming a pressing issue. Conversion of carbon dioxide into value-added chemicals and fuels is regarded as a more attractive and promising way from the viewpoints of reducing carbon...

Trading, agriculture, transportation and communication as well as services sectors are the prime contributors of the regional gross of domestic product in the island of Timor. However, the increasing of such priority sectors was relatively constant which might be occurred due to inappropriate efforts...

The damage to the mangrove ecosystem in Margasari Village District of Labuhan Maringgai, East Lampung Regency was predicted to reduce the estimated carbon stocks in the ecosystem. This research aims to determine the influence of the functioning of the mangrove ecosystem on the total biomass, estimated...

Infrastructure is one of the important elements in the development of a country. The number of bridge infrastructure projects that can increase the growth of the construction industry in Indonesia must be supported by construction technology as well as the use of precast box girders. Problems arise due...

The strategy to strengthen the coming of the industrial revolution 4.0 era in the maritime sector is technology. Technological development is undeniably more advanced, and Indonesia must follow these advancements. At present, all countries in the world are in the stage of adjusting themselves to the...

This study aims to determine the appropriate OBE-based learning evaluation model to be applied to Mechanical Engineering Education undergraduate at State University of Surabaya (S1 PTM Unesa). The research was carried out qualitatively using a development model based on a 4D model consisting of Define,...

Specifics and relationships between soil erosion and soil organic carbon in the Mongolian forest-steppe were studied in this research, in a case of Baga Mukhar catchment, west Khentei. Soil erosion was estimated by the Cesium-137 isotope tracing method. For estimation of soil redistribution rates from...

Mining companies provide the required materials for the energy transition and green technologies. The question which emissions and waste are generated to produce these technologies attracts growing interest throughout the society. Investors, governments, customers, and other stakeholders have recognized...

Greenhouse gases (GHGs) released from permafrost regions may have positive feedback on climate change, but there is much uncertainty about additional warming from the permafrost carbon cycle. One of the main reasons for this uncertainty is that the observation data for large-scale GHG fluxes are sparse,...

This research investigates the impact of machining parameters, During the machining of Inconel 600 workpieces using tungsten carbide tools, both with and without Al2O3 coatings. A high-precision infrared thermal camera was employed to measure the temperatures on both the cutting tool and the workpiece,...

Image quality enhancement via impulse noise reduction is a critical phase in image preprocessing. Faults in the acquisition, storage, and transmission devices often corrupt the images by introducing noise that further hinders image analysis and processing tasks. This paper focuses on high-density salt...

The SPO2IDA method utilizes the backbone curve obtained from static-pushover (SPO) analysis to approximate the incremental dynamic analysis (IDA) curve. It is a parameter analysis method based on static-pushover analysis, and essentially represents an improved R-μ-T relationship. SPO2IDA utilizes the...

Quality Testing Laboratory is a central geothermal laboratory at PT XYZ. In 2020 the company implement centralization policy which led to significant increase of gas analysis demand, resulting in 45% of gas analysis were not complied with laboratory service level agreement (30 days). This study focuses...

In PT PLN (Persero)’s Electricity Supply Business Plan (RUPTL) for the period 2021 - 2030, there is a biomass co- firing program with coal at Steam Power Plants (PLTU). This program reflects PLN’s innovative efforts to increase the use of renewable energy sources without requiring large investment expenditures....

This paper gives a detailed analysis of the existing city shortest path algorithm[1], aiming at the high time complexity and can not represent the real situation of the problem of the existing city shortest path selection algorithm, and bases on the idea of Dijkstra algorithm, puts forwarda fast algorithm...

This paper deals with a design problem of robust internal model control (IMC) for multivariate descriptor linear systems with more inputs than outputs, which establishes a possible way to design and analyze descriptor systems. The main idea of the method is that the given system is first decomposed into...

Virtual learning community, as a new model of network education, is widely used in the process of learning. But this kind of way is not gradually satisfying people's needs for more intelligent and personalized. Teaching strategy in virtual learning community is an important research direction of intelligent...

In this paper the influence of beforehand condition and sinter degree to capability of sintered dolomite has been investigated by means of measure actived degree and capability of high temperature sintered and property of resist hydrate of different material granularity after different beforehand sinter...

The angular traffic flows of the bidirectional marshalling station would greatly increase the task for its characteristic of repeated unmarshalling with subsequently affecting the productive efficiency. Therefore, how to decrease the amount of trains of angular remains an urgent problem needed to be...

In order to improve the response speed of magneto rheological (MR) damper, the system is in need of a fast response driving power supply. Firstly, response characteristics of the MR damper was analyzed. Secondly, according to the basic principle of electromagnetic response, the design of the control...

In this paper, the relevant research work is carried out about seabed sound reflection. It has influences on the test results of a real-boat test based on the acoustic holographic technology. The effects of seabed reflection on underwater acoustic test is analyzed, through simulating sound field of free...

The random walk model is used to describe the mixing of municipal solid waste on the acting grate. An experimental system has been developed for studying the vertical mixing of the waste on the grate. The tracer particles are used to study the mixing process, which are made according to the physical...

This article discusses the partition node incremental deployment method in the wireless sensor network, which is divided into partition structure deployment, incremental deployment nodes and node position adjustment. It suggests how the partition node incremental deployment method might influence the...

The project was a shallow buried large-span highway tunnel, by means of synthetic geological prediction method before the construction of the advanced geological forecast was an effective measures to ensure the safety of tunnel construction. Based on geological exploration, used high density electrical...

With the development of tall building, the requirements for the structural design and construction of building becomes higher and higher, especially the design of the late-poured band in underground structure and the construction measures in the projects. In this paper, taking a high-rise frame structure...

This paper introduces the function and the work principle of a high-temperature gas trial system (HTGTS), elaborates the importance of gas temperature control in the system, and provides the mathematical models of the system. According to the problems such as time delay, time-variant parameters, interference...

This paper is devoted to the study of the energy characteristics of the traction power system of urban electric transport, the development of a methodology for evaluating currents distribution in traction networks and the development of progressive concepts of traction power supply systems. For the implementation...

Methods used for the determination of barium content in barium carbonate are mostly based on traditional chemical method, which is lengthy and cumbersome. If inductively coupled plasma emission spectrometry or atomic absorption spectrometry are used to determine the barium with high content, the sample...

Because of the characteristics of high pour point and high viscosity of waxy crude, pipeline temperature must be calculated accurately in order to guarantee the safety of the pipeline operation. Therefore it is a crucial technical problem to simulate the temperature field precisely. In this paper, unsteady-state...

A refrigeration system achieves its refrigeration function generally through cryogenic refrigerant generated by multiple refrigerant compressor units. Traditionally, the operation of refrigerant compressor units is controlled only by experience or the proportional-integral-derivative controller of refrigerant...

This paper proposed a comprehensive loss reduction evaluation method for regional distribution grids based on G1 method and grey relational analysis(GRA). The method is good at avoiding the prominent disadvantages of analytic hierarchy process(AHP) by determining the weights of evaluation indices. Otherwise,...

A large amount of haze in the fire scene greatly affects the survey on the scene for fire fighters. The intelligent fire control can greatly improve the fire rescue efficiency and reduce the casualty rate. In this paper, an algorithm based on the hardware conditions of the intelligent fire helmet platform...

This paper discusses the implementation of long short term memory (LSTM) for forecasting the value of total dissolved solids (TDS). The TDS value in a hydroponic system represents the number of nutrients contained in water. The amount of water in the hydroponic system is important to note because optimal...

Autism Spectrum Disorder (ASD) is an overall developmental disorder that causes delays in social skills, communication, and behavior in children, so it is very influential in academic and non-academic results. In this case some parents of children with ASD get difficulty to communicate and understand...

The Sm-ZrO2-ZnO catalyst prepared by hydrothermal method is proved to be superior in stably photocatalytic degradation of Rhodamine-B under simulant solar light irradiation. Sm doping improves the ultraviolet and visible light absorbance. Composition of ZnO with ZrO2 leads to enhancement of ultraviolet...

Based on the discrete element software (UDEC), the variation laws of the seepage field and displacement field in water-resistant strata between karst cavity with high-pressuried water and tunnel are simulated and analyzed in thin limestone strata. The results show that under the same karst water pressure,...

Accompanying with many flexible AC transmission system(FACTS) devices put into operation, the safety and reliability of power system operation have been suffering more serious influence and unprecedented challenge. Moreover, it's always difficult to comprehensively and accurately analyze the impacts...

The automatic musical instrument classification taking place in a recording of music has many applications, together with music search through classes, music recommender methods and transcribers. Automatic instrument classification and identification of musical streams has become a difficulty research...

The impact of climate change on operation of the largest Russian hydropower cascade was addressed. A coupled climate-hydropower simulation was fulfilled assuming a model of the cascade taking into account the real dynamics of the hydro-engineering system. An ensemble approach was applied to CMIP5 climate...

The change in every phase of plant growth can be seen from the growth of plant organ every week. Cutting materials used can influence the growth phase in different light environmental conditions. The research aimed to find out light intensities and part of stem cuttings influencing the change in growth...

The National Institutes of Health (NH) is one of the most important medical research centers in the world. It is an executive agency of the U.S. Department of health and public health. The focus of health actions and measures in the United States and even the world are gathered here. N1h includes 27...

General assignment problems include n tasks that must be assigned to m workers where each worker has different competencies in completing each task. This research discusses the problem of solving minimization case assignments using a new method, namely the One-to-One Fixed Method. Completion of the One-to-One...

One of the key features of the current transition of the electric power industry to the smart grid technological platform is a large-scale application of distributed generation (DG) plants. The efficient operation of such plants is not possible without the development of new approaches to the control...

Carbon capture and storage (CCS) plays an important role in mitigating carbon dioxide emissions from industrial sources. The main issue in implementing CCS is its economy due to the high investment and operating costs. To overcome the economic issue, the carbon capture and utilization (CCU) provides...

Membrane separation technology is one of the most innovative and steadily growing fields across science and engineering. The performance of a membrane is determined by several key properties: high selectivity and permeability; excellent chemical, thermal, and mechanical stability under the process operating...

FMEA is a qualitative fault analysis method. Fault mode and failure mechanism analysis is the most critical link in the process of FMEA implementation, and it is also the most difficult to grasp. From the use of the situation and the results of the analysis, due to the lack of strict definition on fault...

This study reports on the design, analysis and testing of a new ten-module triangular prism mast. The triangular prism mast is designed such that it is derived by tape-spring hyperelastic hinges using the stored strain energy. Static bending and theoretical models are established to predict the triangular...

In this study, we report the activation energy of the optical self-oscillation for a polymer chain that consisted of N-isopropylacrylamide (NIPAAm) (25 wt%), the Ru catalyst (5 wt%) of the Belouzov-Zhabotinsky (BZ) reaction, and acrylamide-2-methylpropanesulfonic acid (AMPS) (75 wt%). The AMPS moiety...

Abstract. Objective: To observe and analyze the application value in clinical diagnosis of the diabetes patients with blood lipid inspection. Methods: From June 2013 to June 2014 we select 50 patients with diabetes and 50 healthy people in physical examination as the research object, they can be divided...

Wind speed forecasting has significant influence on wind energy development. In the paper, a least square support vector machine with a novel optimization algorithm was used to improve the performances of wind speed forecasting model. Coupled simulated annealing (CSA) and simplex algorithm were combined...

The braking energy recovery system of electric vehicle is worthy to be further discussed due to the improvement of both the energy efficiency and the endurance capacity. In this paper, the structural and the principle of the energy regenerative system for electric vehicles are discussed. The comparisons...