Advances in Engineering Research

Streaming data processing has become a hot topic in the big data research. To ensure the timeliness of data processing, it is important to explore the performance-sensitive components in the streaming data processing platform, which can contribute to the more efficient performance optimization. In this...

In China, the initial allocation of carbon emission permits in different provinces is an important issue. It is not only related to whether China can achieve the carbon emission reduction targets, but also the establishment of a national total control and carbon emissions trading market. The cooperation...

In order to study the change principle of development biddingafter polymer flooding,the coefficient of drag and residual resistance factorare measured by flow test, and the reasonable injection rate is obtained by the injectability evaluation experiment.Oil displacement experiment is carried out in different...

Inductive sensing is a contactless, magnet-free sensing technology that can precisely measure the position, motion, or composition of a metal or conductive target as well as detect the compression, extension, or twist of a spring. Nowaday inductive measure method have limited in high power dissipation...

For DFIG-based variable speed wind turbines, the crowbar circuit is commonly used as protection method against sudden drop of the grid voltage caused by short circuit fault during the period of LVRT. And vector control for DFIG is presented in detail. Finally, the simulation results verify that crowbar...

The climatic pecularities of the Russian Federation territory that determine the duration of the heating season are considered. The number of operating heating sources of large, medium and low power is reflected. The equipment wear rate of the heating sources is defined. The emphasis is placed on the...

Rift valley fever(RVF) and peste des petits ruminants(PPR) are both highly contagious diseases of ruminants caused by RVF virus (RVFV) and PPR virus (PPRV), which are both the notifiable multiple species diseases in the OIE list. In order to establish a rapid method for detecting of RVF and PPR, two...

Aiming at the requirement of immediate analysis, correction and determination in the index weighting of large-scale construction project management, this study based on the integration of project theories and practices, built and developed index weighting system for large-scale construction project management...

Considering bending stiffness,an finite element model is proposed to overhead transmission based on Euler beam.In this model,the displacement of the unit beam is represented by assumed mode method,and derived the mass matrix and stiffness matrixof unit beam by using assumed mode method,secondly,deduced...

BC (Bacterial Cellulose) is fermented by the bacteria and other microbes from wood vinegar. This paper studies using the well dispersed bacterial cellulose fibers which is modified by polypropylene with plant fibers to make paper .According to the changes of the physical properties indicators of the...

Since twentieth Century, the real estate in Shenyang has achieved rapid growth, with the issue of commodity housing vacancy. Considering the difference between China's current algorithm and international algorithm, as well as the market under the non-equilibrium of supply and demand, the international...

Today, English has become the highest penetration rate of foreign languages in our country. Mastering and using English grammar is critical to learn English well. In order to improve the students' interest in learning English grammar and efficiency and the standard of English in a short time, in this...

A stock time series is composed of a sequence of prices measured from a continuous trade day. Stock motifs are approximately similar segments in a group of different stock time series or market dataset. In this paper, at first, a definition of short-term tendency is defined; secondly, a motif of short-term...

In this paper, the demand side management in the framework of smart grid is introduced., and analyzes the connotation of demand side management in Smart Grid. In addition, this paper focuses on the relationship between demand side management and demand response,analyzes the electricity saving benefits...

Cascading tripping accidents are main causes of complex cascading outages in power system. This paper proposes a method of predicting whether cascading tripping will occur according to the nodal injecting power. In order to give the theoretical foundation of this method, this paper verifies that the...

In recent years, along with the development of nanometer material and technology, it is raising the upsurge of researching the craft of electroless composite plating with nanometer particles in domestic and foreign. However the nanometer material because its big relative surface proportion, the increase...

Options of finding the removal distance of the vehicle from the scene of the pedestrian accident, which came at an arbitrary angle being arbitrary to the vehicle from behind passing obstacle, are considered. Changes in the estimated equations are made. Universal dependences of geometric and kinematic...

Investigate the expression of 5-HT1A receptor in CA1 area of hippocampus of posttraumatic stress disorder (PTSD) rats and to explore the function of 5-HT1A receptor in the cognitive behavior of PTSD rats. Methods:72 healthy adult SD rats were randomly divided into 4 groups: A (control group), B(model...

An Eulerian two fluid model (TFM) is coupled with the population balance method (PBM) for descriptions of gas-liquid flow in bubble columns with vertical internals. An improved bubble coalescence and breakup model is used in combination of the RNG k- turbulence model and the inter-phase interactions...

This paper proposed an inner-outer loop control strategy, which is derived on a simplified non-linear model for unmanned helicopter, to deal with the problem of control stability under disturbances. The outer loop controller, which is an improved PID controller, may adjust PID parameters dynamically...

Metal rubber is a kind of functional structure material, which has important application value in military equipment and civil machinery. The preparation process of metal rubber blanks plays a key role in the performance and structure of metal rubber and is the foundation of metal rubber research. In...

Elastic constants and homogenized properties of gypsum structure were investigated by first-principles method. The gypsum (chemical formula of CaSO4•2H2O) is an evaporite mineral and a kind of hydration product of anhydrite (chemical formula: CaSO4). Elastic constants are calculated based on Density...

This paper presents a comparison of the performance of two circular patch antennas. The antennas use a natural Taconic RF-60A with and without modification using laminating metal strips as the substrate, respectively. The first and the second antenna are referred to as a conventional patch antenna and...

COVID-19 is a contagious virus that has global pandemic. Indonesia has the highest infected cases of COVID-19 in South-East Asia. The aim of the research is classified provinces in Indonesia using Fuzzy Mean Cluster (FCM) based on positive cases, recovery cases, and death cases of COVID-19. The result...

The development of digital construction management is an important initiative to promote the digital transformation of the construction industry. But the attention to the regional difference in the development level of digital construction management in China from the industrial level is still relatively...

With the expansion of image processing application scenarios and the diversification of image processing demands across different fields, Field-Programmable Gate Array (FPGA)-based hardware acceleration technology has become an effective solution to overcome the limitations of traditional software implementations....

Combined with the development of national and industrial standards on environmental pollution control, the paper puts an emphasis on building a scientific and reasonable standard system of third-party governance on environmental pollution based on the system theory and methodology of systems engineering....

Power cable temperature monitoring system is based on the cable installation, cable surface temperature and load current and cable thermal characteristics of the environment, the use of real-time calculation program to calculate the operating temperature of the conductor to ensure that the power cable...

The traditional Computer wargaming system just considers a few types of simple landform, and maneuverable rules are also simple. Based on that, the maneuver trajectory planning results can be usable for games. But the results may be quite different from real combat, which causes simulation results be...

This paper proposes the compressed method of Orthogonal Matching Pursuit to retrieve cerebral vascular image of spectral-domain optical coherence tomography (SD OCT). Discrete wavelet transform is used to sparse the signal. Original cerebral vascular image of spectral-domain optical coherence tomography...

In this paper, we present a port supply chain network model with multiple tiers of decision makers, consisting, respectively, of suppliers, port agents and demanding market. First, we study the suppliers’ multicriteria decision-making and market’s demanding under uncertainty. And then we establish equilibrium...

Article briefly describes the application of CFD simulation technique and experimental validation in the development, improvement and optimization of flotation machine, meanwhile the paper designs an injector used for compound flotation machine according to working principle. The conical injector with...

In order to study the transition of material properties under the environment of high temperature and vacuum, a micro vacuum heating observation equipment was designed. The vacuum system can create the vacuum environment. And the heating system can create the high temperature environment. This equipment...

Horizontal-to-vertical spectral ratio (HVSR) analysis and inversion were applied to S-waves from a large database of broadband seismic and strong-motion recordings. The S-wave HVSR, in comparison with ambient noise spectral ratio, contains much information on the shear-wave velocity structure. In other...

SMA490BW steel is the main materials of making bogie, which is the key compoment of the high-speed train, and the quality of welding joint directly affects the safety of railway vehicles. In this paper SMA490BW steel jonits were welded by single wire welding and double wire welding methods. The temperature...

The coal mine safety production is the difficulty and key study of coal producing countries, and the ventilation, gas, fire and dust accidents are the priority among priorities of safety production in coal mine. This paper established a set of coal mine accident early warning system which based on the...

In this paper, the graphene is prepared by chemical oxidation and chemical reduction, the finished grapheme is modified on the surface of heated glassy carbon electrode through drop casting, the graphene modified heated glassy carbon electrode(GR/HGCE) is then prepared, the characteristics of graphene...

In this paper, problems in coal handling system and practice of Chengjiao coal preparation plant is tested and analyzed in detail, and I have put forward solutions for problems in coal handling system. The best production program of Chengjiao coal preparation plant was chose through program comparing....

The tunnel structure life-cycle includes construction period, service period and aging period. Something dangerous maybe happened in the event of stress balance weight distribution of tunnel structure changed and the continuous development of shotcrete and bolt strength during construction. During service...

Drilling and blasting is still the most prolific way to extract minerals and associated waste from the earth, more so in case of hard rocks with uniaxial compressive strength greater than 50 MPa. Considering the growing demand for these minerals reducing ground vibrations, air vibrations, fly rocks,...

Carbon fiber tow is used in aerospace, automotive, marine, sports etc. applications with over 20 years' service history due to outstanding processing characteristics. This research work deals with carbon fiber tow mechanical properties improvement by conducting a new device, i.e. fiber splicing equipment...

In order to reconstruct a surface by using the data from RGB-D sensor, this paper presents a viewpoint based method for estimating the orientation of point clouds. Firstly, a PCA method is used to compute the normal vector of each point. In this process, the orientation of the normal is determined by...

In recognizing traditional crops seeds like maize seeds, we usually use electrophoresis assay method, fluorescence scanning method and chemical assay method. These methods are destructive methods. They take a long time to detect and are demanding of professional background knowledge and hardware conditions...

Aiming at the low success rate of gun firing with gas gun in the airport, the launch characteristics of gas-gas ejector were studied based on Fluent software to improve the ejection performance. Through the multivariate statistical analysis model, the single-value influence curve of each structural parameter...

The software FLUENT was used to analysis the thermal balance of composites reinforced by different shape buckypaper during the heating process. The research shows that the electrothermal energy is mainly used to increase the temperature of the insulator and the heating plate itself at the initial stage...

Considering the problem of the movement accuracy of the three-bar composite planar linkage mechanism considering the hinge clearance, this paper applies the “hybrid zero displacement method” combined with the continuous contact model and the matrix method to analyze the motion error of the composite...

This research is aimed to establish stress intensity in pregnant cows and compare it with metabolism load in heifers. This issue has been important due to significant intensification of dairy production in recent decades. The organism of a dairy cow is under a constant load, especially in heavy-yielding...

Cleaning robot is widely applied in modern society. This paper introduces the development of cleaning robot and its utilization characteristics and requirements, and briefly analyzes the design and simulation of cleaning robot controller from various aspects.

The topicality of research is determined by the progress trend in the development of the gearing technology consisting in the upgrading of power transmissions based on the multi-threaded power and kinematic principles of the rotation transmission. Maximum efficiency is characteristic of the harmonic...

For improving the low flowability, promoting the separation between high Ti-bearing blast furnace slag and hot metal, and replacing CaF2 which would pollute the environment, the influence of B2O3 and CaF2 on apparent viscosity were investigated from 1340°C to 1475°C by SEM, viscometer, et al. The results...

a DC~ 20GHz monolithic SPDT broadband switch is presented in this paper. This switch has been realized by 0.15um GaAs process.it exhibits high performance: over DC~ 20GHz, Insertion loss is less than 2.0dB; The input 1dB compression point is more than 22dBm; input return loss is lower than -15dB; output...

This article demonstrates a method to make classification and dosing control for oil wells. To find the main factors that caused the corrosion and scaling in oil wells, water quality data of one oil production plant were made principal component analysis. Then the oil wells were divided into four types...

Wireless sensor nodes are usually powered by batteries and then work for a long time after deployment, which means that the energy of nodes could become a bottleneck of network operation. To solve the problem of energy limitation of nodes in wireless sensor network, this paper proposes an energy saving...

The purpose of this study is to analyse research trends regarding the topic of physics studies in the Qur’an during the period from 2016 to 2020 through bibliometric analysis using the Scopus database. The results showed that the number of publications in 2016-2019 increased dramatically. However, after...

To address the issue of insufficient accuracy in identifying fine cracks in concrete bridges under complex backgrounds, a new crack detection model based on SPF-YOLOv11 is proposed. The model integrates Space-to-Depth Convolution (SPD-Conv), Feature Pyramid Shared Convolution (FPS-Conv), and the small...

The objective of this study is to apply the Analytic Network Process (ANP) to prioritize strategies for enhancing green productivity in housing development. The identification process yielded five ways that can support green productivity in residential construction: Environmentally Friendly Building...

The memcapacitor is a significant component of the memristive system family, serving as a circuit element that represents the relationship between magnetic flux (φ) and charge integral (σ). The primary distinctions between a memcapacitor and a standard capacitor can be outlined as follows: the capacity...

One way to increase the surface hardness of a material is by adding carbon elements in a confined space under controlled temperature, a process known as pack carburizing. This study used the pack carburizing technique to explore the effects of different carbon powder sources on the hardness and microstructure...

Food storage and food packaging materials belong to a group of food contact materials (FCM) that is highly regulated to ensure the health and safety of consumers. The choice of FCM is crucial because all types of FCM produce non-intentionally added substances (NIAS). The unknown substances are mixed...

A study was made to desulphurize the coal from WuHai of Nei Meng Gu province in China, characterized by high content of sulphur (2.85%) and high content of organic sulphur (0.49%) by using the mesophilic bac-terias isolated from WuHai coal. In the present investigation, while using these natural microbial...

Focused on problems of the grid enterprise in the energy saving and emission reduction works at present, this paper systemically and comprehensively design the energy saving and emission reduction system for the grid enterprises by combining the current energy saving and emission reduction situations...

In the polygeneration process of coal pyrolysis/circulating fluidized bed (CFB) combustion, the sulfur transformation characteristics and a heat transfer, reaction, pyrolysis mathematical model for the non-isothermal coal particles has been studied. The results show that, the circulating ash was effective...

With the development of the headset VR equipment of consumer-level and the interactive technology of the headset VR, especially the non-contacting gestural recognition technology in machine vision. The headset VR equipment of gestural recognition became the potential research area in the close interaction....

Effect of the addition of carbon on the sintering properties of pressureless sintered boron carbide ceramics was investigated by using carbon black and phenolic resins as the main additives. There were three ways for adding Carbon, carbon black adding, phenolic resins adding and adding carbon black and...

The global climate is undergoing a significant change with global warming. The cause of this change is greenhouse gas emissions by carbon dioxide. This article embarks from the challenges faced by construction of low-carbon city in Guiyang, using DPSIR model, from five aspects, including driving, pressure,...

For more rapid and accurate coastline extraction methods, this paper presents a method of coastline extraction on remote sensing image using Gaussian process classification and then the coastline in coastal waters of Beihai city in Guangxi has been extracted. The results show that coastline extraction...

The Travel Time Prediction (TTP) is an important element in the study of the advanced transportation guidance system and control system. In this paper, an advanced method with Extreme Learning Machine algorithm(ELM) has been discussed by analyzing the various travel time prediction method. The feasibility...

Exploits on memory vulnerability has existed for two or three decades, it’s always an important problem how to prevent memory attack. Vulnerability patch can’t resolve the problem fundamentally, we should think about how to improve the memory security mechanism of OS, such as DEP, ALSR, etc. This paper...

Hyperspectral remote sensing is a frontier field of remote sensing due to its advantage of object recognition based on spectral characteristics. This study carried out geological application of HySpex ground-based hyperspectral data at scales of both alteration belt in the Asiha gold district of Qinghai...

The characteristics of the coal bed geological body and the commonly used 3D data model, the data model and the data model of the coal seam are studied. Based on this, a 3D data model is proposed, which is based on multi-layer TIN. The corresponding data structure is designed, and the algorithm of multi-layer...

This paper probes into the anaerobic ammonia oxidation startup phase and the concentration of nitrate nitrogen, PH and temperature on the start stage, and the effects of nitrogen, the results show that:(1) The nitrate nitrogen concentration and enrichment of anaerobic ammonia oxidation bacteria biomass...

With the increase of LNG power ship, the structure form of the fuel tank has been paid more attention. In this paper the advantages and disadvantages of LNG powered ship fuel tank with double shell tank structure or independent C type single shell tank structure are discussed from the initial evaporation...

The aim of this work was to employ optimization strategy based on statistical experimental designs to enhance the polysaccharides extraction yield from Gynostemma pentaphyllum. The effects of three independent variables on the polysaccharides extraction yield were investigated and the optimal conditions...

Abstract–Poverty tourism that developed by Interculture Socio-Cultural community become controversial because it is trying to show the poor life of people in Luar Batang, North Jakarta. Poverty become an alternative tourism comodity that trying to show a reality of the real life in Jakarta. This research...

The paper proposes the social potential of rural areas. It gives the comparison of the quality of the population life of different countries through the criterion of expenditures and consumption of home economics. It also compares the rates of introduction of residential houses and improvement of housing...

Traditional airfield lights addressing and controlling system is realized through power carrier communication technology, and is characterized by low transmission efficiency, inaccurate testing and poor unsatisfying reliability. This paper introduces an airfield lights addressing and controlling system...

A method of on-line measurement which is based on a loser displacement sensor to measure external profile of non-circular piston is proposed. Measurement coordinate system is established on the basis of the reference cylinder. Measurement data is processed through least square method to achieve the actual...

Base on the problem that during the moment of ignition, electromagnetic environment in vehicles could cause interference to the stability and reliability of vehicle fire protection system, causing failure of the fire-prevention function. In this paper, the interference mechanism and harmfulness were...

Every year the growth of the number of people in Indonesia continues to increase, then this situation is not accompanied by a safe, convenient, and nearest parking location to the destination location, this is what triggers a number of problems that develop in the community. Due to the increasingly dense...

One of the oxygen generators is a Pressure Swing Adsorption (PSA) machine which is intended as a central oxygen-producing source on a smaller scale by a concentrator machine. Oxygen from the PSA device will be flowed to the patient through the terminal on the patient’s bed or flowed to an oxygen cylinder...

Grid electricity costs and tariff volatility place heavy pressure on large campuses in Ghana. This study develops and evaluates a 1.3 MW (DC) grid-connected rooftop photovoltaic (PV) design for a public university and quantifies technical yield and financial performance using HelioScope simulations with...

Cloud computing environments need robust and adaptive security mechanisms against the ever-evolving cyber threats. Accordingly, this work proposes an innovative framework of Context-Aware Encryption Key Generation for Real-Time Mitigation in Zero-Trust Cloud Security. This incorporates an efficient Quantum...

Microservice architectures have brought agility to an unprecedented level at scale, and have at the same time created a fundamentally new attack surface, making traditional security models irrelevant. The present paper presents the concept of the Agentic Context-Aware Security Framework (ACASF), a new...

The Sigli - Banda Aceh Toll Road passes through an area where the subgrade consists of soft soil. Geotechnical issues usually arise that settlement over a relatively extended period, which can damage the structure constructed above it. One of the improvement methods for soft soil problems is a Prefabricated...

Mercury contamination in natural gas systems presents dual hazards: compromising human health and corroding critical transmission infrastructure, ultimately jeopardizing the operational stability of gas purification facilities. Accurate prediction of mercury absorbent service life is therefore essential...

In order to further explore the study of earth-rock balance planning of pumped storage power station, it provides a reference for the selection of conversion coefficient of fill material and utilization coefficient of excavation material in subsequent pumped storage engineering construction. Taking Zhejiang...

Many factors influence the strength of concrete, including the quality of the materials and admixtures used, the composition of the materials, the method of manufacture and curing. Therefore to achieve the design strength of concrete, it is necessary to conduct aggregate inspection, use suitable admixtures,...

According to the design requirements that the operating rod should provide a sensing capability to make the operator at the remote end be personally on the scene, in this paper, we propose a force feedback operating rod equipped with 3-RRR spherical parallel mechanism as the basic configuration by analyzing...

SOS (Silicon on Sapphire) high temperature pressure sensor is a kind of strain pressure sensor with high performance. Since the sapphire has excellent properties in chemical stability, corrosion resistance, radiation resistance etc., the SOS high temperature pressure sensors are widely used in the industries...

This paper presents a new method of rehabilitation workstation for hand dysfunction. It has functions as follows: hand dysfunction diagnosis, assessment of disability, physical training. With the assistance of cyber gloves as well as hand strength training devices designed by the present authors, this...

SCADA (Supervisory Control And Data Acquisition) system is a computer-based automation system applied in operation process control and remote scheduling. This paper introduced the principle and method of security assessment based on SCADA system. Three basic elements of security assessment, asset, threat...

From the modeling operator, we derive its adjoint operator which is used to migrate 3-D poststack data. It forms a theoretical foundation for the reverse-time migration. The method would be helpful to get a new way to improve the result of conventional reverse-time migration. The inference of the adjoint...

A new metal detector is designed.Using LDC1000 digital inductance sensor and self-made coil as the metal detection sensor, based on eddy current principle. When the metal near the coil, because of the mutual inductance, the LC oscillation circuit's frequency changed, the changed frequency can be converted...

In recent years, computer systems are widely used in the modern Chinese part of speech tagging. Modern Chinese part of speech tagging is a basic subject in the natural language processing. It is widely used in machine translation, natural language understanding, establishing of the Chinese corpus, information...

In this paper, fractional reaction-diffusion equations are used to model the diffusion of PM2.5 in the air. First, based on the shifted Grünwald formula, we propose the fractional Crank-Nicolson method to solve the fractional reaction-diffusion equations. Then we prove the existence and uniqueness of...

The aim of the study was to develop Flat Plate Collector (FPC) from the locally available material in the market for the purpose of solar water heating. The efficiency of the collector was tested with the normal flow of water under ambient temperatures of 25oC for the consequently months of the year....

with the rapid development of computer and multimedia, physical education is also in line with the trend of the times. The purpose is to promote the application of multimedia technology in the teaching of physical education. In this paper, the definition of computer multimedia technology, multimedia...

Double Rotor Motor Power Coupling System (DRM-PCS), as a new kind of power coupling system, can be used in hybrid electric vehicle to make the engine operate efficiently by decoupling the engine speed from the wheels. In this paper, the thought and method of the engine optimal control are put forward....

Graphitized steel in some cases, due to its intermediate position in composition and properties between low-carbon steel and cast iron, can provide the necessary combination of properties of structural material. They are successfully replace ductile iron, carbon and low-alloy steel in the manufacture...

The paper describes results of the study on polybutylene terephthalate and polybutylene terephthalate-polyethylene having high chemical resistance. The article shows the dynamics of changes in values (Ap), (Ey), (?t) (?p), (?p) depending on the composition and exposure time under unloading which is close...