Advances in Engineering Research

To combat air pollution and safety hazards caused by volatile organic compounds (VOCs) of dynamic and static sealing point of equipment in petroleum refinery industry. This paper, firstly, builds the five-part procedures based on leak detection and repair (LDAR) for VOCs treatment and assessment, which...

Tank car accidents happened in china frequently, it is harmful to the ecological environment and the economic development. Tank testing is an effective guarantee for safe transportation of tank car. At present, the most efficient way is entering into the tank to inspect it, so, the harmful gas must be...

Objective: To explore the differences of the app software in different stimulation modes on the individual's independent physiological responses, and to analyze the differences of the responses of the subjects of different genders and grades in different stimulation modes. Methods: 51 college students...

The strain variation and microstructure evolution of 2060-T8 alloy during bending are investigated by Micro-hardness point method (MHPM) and Digital Image Correlation (DIC), electron backscattered diffraction (EBSD). Experimental result shows DIC method can be used to characterize the strain micro-region...

Nowadays, a massive transportation payment system in DKI Jakarta is yet able to help the movement of public transportation easily and quickly. Card, as a payment device, is expected to be able to make people use public transportation instead of personal vehicle. However, the result is not as expected...

This study was to determine the determination of the Cost of Goods Sold for natural gas produced by the Central Processing Plant in Blora District. Total production of natural gas distribution in 2019 through the Natural Gas Distribution Network is 2.36 MMCFD. The cost of natural gas products which has...

The Archimedes wind turbine has emerged as a viable solution for such areas with low wind speed. The horizontal-axis design incorporates spiral-shaped blades, allowing it to operate effectively even at 2.5 m/s. Its drag-based design improves torque generation and delivers higher aerodynamic efficiency...

The use of solar power for cooling systems continues to be developed to obtain efficiency and cheap operations for food storage. In recent times or conventionally to keep fresh meat or fish in display cabinets usually use ice cubes. This condition causes a temperature more than 0˚C which can cause the...

This study aims to measure students’ scientific literacy in their ability to solve environmental problems based on the COVID-19 issue. The main problem in this research is “How to improve students’ scientific literacy in their ability to solve environmental problems based on the COVID 19 issue?” Based...

High-rise residential fires pose a significant threat to the life and property safety of residents. To address the issue of inadequate early feature recognition by photoelectric smoke alarms in current high-rise residential buildings, this study employs FDS simulation software Pyrosim to establish a...

Aging is a physiological process that cannot be avoided, but can be prevented by giving antioxidants. Antioxidants can be obtained from Centella asiatica extract (EkCa). EkCa has secondary metabolites that have biological effects related to inflammation and prevent aging. The purpose of this study was...

We have developed the IED device's Intelligent Testing System for the lack of existing field-testing techniques. The system can automatic access to the tested IED's configuration parameters by simulating the MMS service. It can use the parameters to set the test parameters of the process layer and tests...

In recent years, with the popularity and development of the Internet, information is spread more and more quickly. In this paper, based on a large amount of data, we first consider "Information transfer capability parameters of the information network" as an evaluation criterion to describe the information...

In recent years, with the rapid development of the e-commerce, C2C (Consumer to Consumer) as a kind of the transactions on the Internet named “private to private” will become the main force for the future development of the e-commerce. This paper analyzed the significance of mass logistics distribution,...

An intelligent electrical circuit for controlling the operation of quartz metal halide discharge (QMH) lamps is proposed. The lamp can be operated steadily at high-frequency by integrating the microcontroller ATmega128. With the application of pattern recognition, the control system enables the lamp...

A x-band SPDT switch is presented in this paper. This switch has been realized by 0.5um GaAs process.it exhibits high performance: over DC~10.6GHz, insertion loss is lower than -1.7dB; the ripple variation of insertion loss is less than ±0.3dB; The isolation is lower than -50dB; input return loss is...

Power system has higher and higher requirement on equipment miniaturization, intelligence and reliability with growing demand for high-performance computing requirements. Conventional substation automation system has many deficiencies in the application, which can not meet power grid development and...

A low frequency living beings electrotherapy instrument is designed which is based on the transcutaneous electrical nerve stimulation. This system uses ATmega32 (MCU) to control its output and display. The hardware part includes the keyboard, the LCD, the alarm circuit and output circuit .The other part...

The effective length factor of the braced beam with in-plane buckling in the chevron braced steel frame with pinned connections was derived, and verified in comparison with the value calculated by the eigenvalue buckling analysis using the software ABAQUS. The results show that, the numerical values...

In this paper we investigate the carbon dioxide emission trends of China’s agricultural product proceeding industry from 1995 to 2011 with index decomposition analysis. The results show that carbon emission of the agricultural product proceeding sub-sectors presents an obviously upward trend with time...

In ordering to resolve the slow convergence problem of ant colony algorithm in QoS routing, this paper presents a sort of ant colony algorithm which based on optimized sequence. In global pheromone updating, this algorithm weakens the influence of a single iteration solution and adopt a combination of...

Based on the mechanism of composite energy and its energy scale, evolution and distribution law of stress and fracture field in surrounding rock of roadway in deep mining, the article puts forward regional outburst prevention measures of unloading pressure by pre excavation rock roadway and constructing...

With the problem of environmental pollution and energy shortage is becoming increasingly serious, researches on electric vehicle (EV) are getting more and more attention. As an important energy source of EV, the working status of power battery will affect the performance of the vehicle. The performance...

The process of rock blasting involves large deformation of rock mass,material nonlinear,and so on, the research on the mechanism of it is still in the stage of exploration at present.This article attempts to analyze the propagating of the stress wave in the explosions from the microscopic view. We simulate...

By the advantage of high CMRR and high input impedance of the parallel connected differential amplifier, this paper designs a comparison amplifier which has good linearity.

The construction and development of UHV power grids has changed the energy allocation mode which was excessively relied on coal transportation and power development mode which balanced locally in the past. However, with the development of UHV technology, the security contradiction of the large power...

Modern automobiles equipped with an accumulator fuel-delivery system can fulfill the most demanding operational and ecological requirements. However, when fueldelivery components (predominantly, electrohydraulic injectors) break down, it is difficult to analyze their faults. Therefore, studies aimed...

With the transformation and social structure of relationship-oriented in China, political connections widely exist in various. Each year many businesses spent huge amounts of time and money on establishing political connections. Taking GEM Listing Corporations as samples, This paper studied what kind...

Plate-fin heat exchangers are widely used in the field of nuclear waste heat recovery due to their high heat transfer efficiency and compact structures. The vacuum brazing technology is frequently employed to package these structures. Under high temperature, high pressure and harsh working conditions,...

Intelligent mobile robots require autonomous navigation and localization in the environment. In order to realize the function of localization and navigation, the robot often needs to obtain the 3D map of the environment. The basic and key technology to achieve the intelligence is Simultaneous Localization...

Northern part of Hebei province as an important resource area of solar energy and wind energy will promote distributed power development in the thirteenth Five-Year period vigorously. This paper took a distributed photovoltaic project as an example, and made an economic analysis for the distributed power...

In order to identify the multiple damage of the structure, this paper presents a method of structural damage identification based on wavelet analysis and particle swarm optimization(PSO). Firstly, analyzing dynamic characteristics of the finite element model to obtain the strain mode, then continuous...

To improve the computing capacity of domestic rugged computers, the present paper provides a design method of computing acceleration module based on Loongson 3A1500, and introduces the modular design ideas. The domestic Loongson 3A1500 processor and DDR3 memory are used in the hardware side. The present...

Traditional paper certificates and electronic certificates are difficult to handle and preserve, may need third parties to authenticate the certificate, take a lot of time, and have a potential of being tampered with. People routinely fabricate certificates to represent their credentials and degrees....

Choice of transportation mode is influenced by the socioeconomic characteristics of dwellers and trip characteristics, which aid in improving the overall transportation system and upgrading policies. Due to the interdependence of two cities, many people commute from Gazipur to Dhaka using buses, trains,...

Traditional technology is used at the craftsman level, using very simple equipment. The use of simple tools affects the production capacity and quality which is relatively low. From previous research that has been carried out through an internal grant, the vacuum Evaporator process provides a processing...

This research discusses the importance of cost estimates in project management, specifically in Indonesia. The ability to make accurate cost estimates is crucial for project estimators, as it affects their profitability and success in winning bids. If the bid price is too high, the estimator is likely...

This paper presents the comprehensive design, optimization, and validation of a 5-bit absolute value detector (AVD), achieving notable reductions in delay and energy consumption for digital integrated circuits. AVDs are crucial in applications such as digital signal processing and numerical comparisons,...

This paper takes the special-shaped curved building surface of Hangzhou East Railway Station as the research object, draws lessons from the theories and examples of nonlinear building surfaces and its parametric technology at home and abroad, summarizes the technical characteristics and design methods...

This paper discusses the formation of student public opinion from the foregoing background, and studies the sources, types and character of the Internet education public opinion, then discusses the strategies for accessing and filtering the sources link and content of the Internet education public opinion...

Interconnecting wires is sometimes difficult, inconvenient and even impossible when the light source controller is installed in the industrial field. In order to solve the problem above, a digital wireless LED light source controller for machine vision is proposed in this paper. Firstly, the hardware...

With the development of marine transport, ship timely maintenance and repair of performance as one of the main factors affecting the efficiency of transport. Ship lift platform of steel structure provides appropriate maintenance and docking capability for marine areas, while steel platform has many advantages:...

The effect of pomelo peel on the adsorption of organic dye rhodamine B (RB) was explored through a series of experiments. The influence of factors including pH value, initial concentration of RB, dosage of pomelo peel, and temperature upon adsorption of RB in aqueous solution was studied. The results...

The main objective of this study is to design and analyze the important components of pressure vessel according to the internal design pressure and temperature by using finite element method. A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different...

The Hongshiyan landslide dam is composed of landslide body accumulated in river. Its composition, which includes series of questions such as unevenness, loosening and gradation uncertainty, is complex and random. In order to ensure the safety of the dam body, the joint seepage control measures of impervious...

According to Grey theory and Radial Basis Function (Radial Basis Function, RBF)neural network forecasting method respective characteristics, based on Ningbo port container sea-rail transport volume for the original data in recent six years, Grey-RBF neural network combined forecasting model is used to...

Based on the finite element analysis software ANSYS Workbench, studied the fluid-solid coupling numerical simulation of the pipeline centrifugal compressor impeller with the unstructured grid finite volume method and finite element method. The equivalent stress distribution of the impeller, which caused...

Taking Taoping Qiang Dwellings in Li County, Aba Prefecture of Northwestern Sichuan as case, this paper analyzed low ecological technology strategy applied by Qiang Dwellings in Northwestern Sichuan for coping with alpine region, including regional environment strategy, architectural technology mode....

The annual municipal water consumption in the Khartoum State is half milliard cubic meters from the River Nile plants and the drilled water supply wells. Sixty percent of this amount is derived from the groundwater sources. Examination of the drilling recorded data of over 2000 wells distributed all...

Jinsha river bridge is the biggest span suspension bridge under construction across the canyon. The analysis of the cable crane is of vital importance. The parabola theory of three spans is used in this paper to design the selection and installation of the sag of the track cable and hoisting cable. At...

Here an experience on utilization of coal mine methane (CMM) to generate thermal and electric power at Kuzbass coal mines is given. A process model of CMM utilization is presented in the form of a Petri net.

This paper introduces a kind of key technology of an energy-efficient wireless router switch design. The core of this technique is to monitor the flicker frequency of wireless network signal to realize the wireless router control. Our project team received data through experiments and analyzed it by...

An analytical method of SRF considering MDOF effect of bridge structure was put forward. The definition and calculation method of amplification coefficient were proposed. Calculation programs were compiled to analyze various equivalent pier MDOF model of bridge through the combination of finite element...

For the past few years, more and more applications and services need to interact with information from real world. Therefore, many researchers are focus on theories and techniques about the Internet of Things and more enterprises have already adopted this new-generation information technique marked with...

The prediction for the frame of a video is difficult but in urgent need in auto-driving. Conventional methods can only predict some abstract trends of the region of interest. The boom of deep learning makes the prediction for frames possible. In this paper, we propose a novel recurrent convolutional...

The article presents the results of the determination of the index (the ratio of the actual indicator to the standard for strong wheat) of the nature of the grain, the mass fraction of gluten in the grain, the strength of the flour, the bread volume and the overall baking evaluation for wheat varieties...

This paper presents a method based on georeferenced feature image to automatically extract typical disaster-bearing targets from coastal LiDAR data. Firstly, the noise and the water surface of LiDAR point cloud are removed by using the elevation histogram. Secondly, by analyzing the spatial distribution...

Based on the analysis of the influence of prestressed beam tension on the concrete box girder structure, this paper puts forward the characteristics of the construction of viaduct. It is based on the construction characteristics of viaduct. The reasonable tensioning sequence of prestressed concrete box...

Four models of Concealed multi-ribbed frame thermal insulation walls are manufactured at 1 /2 scale and then tested under eccentric load. The wall's failure processes is described. Cooperative working action, failure modes and bearing capability are analyzed to obtain the bearing capability calculation...

Research on performance of Electric Vehicle is very important, especially in driving range of a Battery Electric Vehicle (BEV) that requires precise State of Charge (SoC) predictions. The battery SoC is an important parameter that reflects the performance of the battery. Meanwhile, the battery has varying...

Because of its unique geographical environment and special climatic conditions, the Sedorongpu basin experiences frequent glacial geological hazards. This study focuses on the characteristics of a recent large-scale debris avalanche disaster (October 17, 2018) in the Sedorongpu Basin, aiming to investigate...

In this paper, conventional triaxial compression tests were conducted to obtain the full stress-strain curve of deep roadway rock mass. Considering the post-peak flow and drop failure of the curve, the surrounding rock was divided into three zones: elastic zone e+ plastic flow zone w+ fracture zone b....

The strength of RTP non-metallic pipes is provided by the reinforcement layer structure, which comes into contact with the medium inside the pipe and provides corrosion resistance as the lining material. In order to overcome the weakness of high gas permeability of traditional plastic lining materials,...

The high strength low alloy steel's (HG785D) welded joint was formed by strength match under MAG (80% Ar +20% CO2). The microstructure, micro-hardness and fatigue crack growth rate of the parent metal, weld and heat affected zone were tested and analyzed. The results show that the heat affected zone's...

In order to reduce the computation time and increase the convergence rate of absolute nodal coordinate formulation (ANCF), this paper gives a new local mesh refine method that can densify the mesh locally according to the degree of stress concentration. The mesh is divided into two kinds after comparing...

Light emitting diode( LED) is widely used because of its high efficiency, environmental protection, long life and so on. However, the use of LED is affected by the performance of the driving power supply, especially in the complex and poor working environment. Therefore, it is very important to improve...

This paper designs a lower limbs rehabilitative robot with compact, functional and widely applied features for patients with lower limbs disorder. This robot is consisting of hip transverse adjustment mechanism, hip and knee joint compound movement mechanism, bed angle adjustment mechanism and pedals....

[Objective] By screening salt-tolerant strains , provide support for salted wastewater.[Method]With high salted water high efficiency salt activated sludge acclimation salt high efficiency cultivation as the source of strain , isolated and purified salt-tolerant strains , by measuring the salt-tolerant...

In this thesis, we implement a fast human face detection system based on the the latest real-time feature detection algorithms presented by Paul Viola [1]. Based on the implementation of the algorithms developed by Paul, we developed a quick image scanning algorithm and an algorithm for simple classifier...

The original East Pier wastewater treatment plant in Beijiang Area, Tianjin Port, was built in 1992 to treat the wastewater produced locally. As required by the environmental protection department and owners, the output quality after treatment should meet the first class-A standard in “Pollutant discharge...

Mining companies the world over are seriously looking at the 'total cost concept' having fully realized the benefits of good fragmentation and muckpile looseness achieved in the primary blasts itself. Good blast planning and accurate monitoring of the various operations holds the key to reaping and realizing...

LNG low-temperature pipe pre-cooling is difficult point of completion and commissioning of LNG project, under the flow rate of 0.2m/s,0.5m/s and 1m/s, FLUENT software is used to conduct simulation of BOG gas pre-cooling technology for 63010mm low-temperature pipe to obtain temperature change regularity...

This paper proposes a physical model of pressure compensation with accumulator based on the simulation research. The best accumulator can be chosen quickly and reasonably for different sampling systems. The mathematical model about the final pressure of the accumulator is established. The accumulator...

In research process of professional employment management platform for multimedia majors in the cloud computing environment, due to the current student employment management algorithm, increasing employment information is unable to meet the requirements of information processing. A design method of such...

To investigate the effect of schizandra B(Sch B) on reorganization of primary hippocampus cells dendritic spines induced by Glu. Methods: The primary hippocampus cells were divided into control group, model group and Sch B group. The primary cells in control group were untreated; the primary cells in...

Nowadays, tumor imaging is widely used in biomedical field. However, the materials of imaging is rarely and strict. This study developed a method for preparing autofluorescent polyacrylamide nanoparticles (NPs). The polyacrylamide NPs were treated with glutaraldehyde, and then removed excess glutaraldehyde...

In this paper, in the light of the diversity of space-crafts in space information network and the fast switching characteristics of network nodes, a hardware in the loop (HITL) test-bed is designed and built for testing and evaluating the appointed space information network, which consists of the modeling...

A new design of high thermal efficiency gas stove which can effectively utilize waste heat of the stove has been proposed by directing at the low thermal efficiency problem of existing open combustion-type gas stoves. Based on practical product investigation, technical methods including introduction...

This paper puts forward a new method named war experimentation demonstration to evaluate the quality of operational requirement scheme of equipment. Based on defining the correlative concept of operational requirement scheme of equipment, its quality evaluation, and war experimentation demonstration,...

PT. Kawai Indonesia is a musical instrument manufacturer that produces reliable piano instruments. With the level of intense competition among other piano brands, the company must be able to maintain the quality of its products by reducing claim defects that occur due to several errors from both internal...

Under the background of the current national regulations and the goal of “double carbon”, it is necessary to start from the shape design of high-rise residential buildings in cold regions to reduce building energy consumption. This study summarizes the key elements of high-rise residential shape design...

The waste cooking oil and waste engine oil were combined with waste tire rubber and subjected to pyrolysis to produce the regenerant. The Soluble fractions were separated and characterized through Soxhlet extraction. The self-healing properties of the asphalt were analyzed using a dynamic shear rheometer....

This paper conducts an in-depth analysis and optimization of the high power consumption issue in mobile office applications. By long-term tracking and analysis of the power consumption logs and CPU processes of a certain office work APP, it was found that there are abnormal threads when the application...

This paper describes in detail the principle and process of transparent task mode by comparing the traditional electricity-price issuing mode and the transparent task electricity-price issuing mode. Experimental results of the emulational platform district and the on-site platform district are integrated....

In order to improve the effectiveness of multi-objective and multi-attribute decision of road preventive maintenance, the paper considers the characteristics of preventive maintenance decision-making, establishes a preventive maintenance decision-making model based on Data Envelopment Analysis (DEA)...

Pan and Wang presented a generalized preconditioned Hermitian and skew-Hermitian splitting (GPHSS) method [J. Numer. Methods Comput. Appl., 32., 174-182, 2011] for saddle point problems. The method is improved to solve saddle point systems whose (1,1) block is a symmetric positive definite M-matrix with...

The key problem of task scheduling is to give optimal matching schemes for tasks and resources. In the scheduling process, users pursue high quality and service providers favor high yields, so the high efficiency must be considered in the process of task scheduling. The author puts forward a task scheduling...

Based on the measured data of wide area measurement system(WAMS),a method of automatic trend identification for frequency in power system is proposed.Using data-smoothing technology to eliminate the influence of the signal noise such as burr to extract the overall trend of the signal and combining with...

In this paper, a new cellular-automata-based stock market model is constructed. Differing from the previous models, this model takes amount of investors’ capital, the important factor, as a normally distributed random variable, into account. By combining with the characteristics of the current stock...

Decamba degradation using ozone-fly ash combined process has been studied in laboratory. The effect of pH value on dicamba degradation was investigated. Kinetic analysis was carried out. The experimental results show that pH value has a significant influence on dicamba degaration. The increase of pH...

This paper presents a comprehensive review of the current state of research activities on the application of constructed wetlands for removing emerging organic contaminants (EOCs) from wastewater. The design parameters of the reported constructed wetlands including the physical configuration, vegetation...

Combined with the north project of Dalian international oil reserve, based on the monitoring of box gabion stone retaining wall, the earth pressure of box type reinforced gabion retaining wallwas studied. It can be further development of this technology, provides an example for the comprehensive application...

The tunability on the refractive index of the liquid crystals makes the photonic crystal optical switch possible, which comprises liquid crystal materials. In this article, based on the light induced alignment of liquid crystals and the self-collimation effect in the photonic crystals, an all-optical...

It is very difficult to get exact accurate estimated value When the Markov process theory is used to calculate the number of remaining mines, because the prior knowledge has not been fully utilized. For solving the above problems, this paper establishes posterior distribution model of Estimation of the...

SCR (Selective Catalytic Reduction) technology is the most effective after-treatment technology of DeNOx on vehicle diesel engines. In this paper, a modeling of vehicle diesel Urea-SCR after-treatment system was set up with the method of CFD coupled with chemical reaction dynamic, to make a full-scale...

Nowdays, one of the realistic topics is the diversification of environmental public service's subject. In the Governance theory, if an effective coordination mechanism is constructed in public service area, government, enterprise, the third party will together take part in the supply of public service....

Micro-Electro-Mechanical Systems (MEMS) are widely used in biotechnology, medicine, communication and inertial sensing. Utilizing the integrated combination of electro and mechanical systems, MEMS are able to achieve new functionality. In particular, a folded dipole array is an important component in...

This paper is mainly to study the working state of a certain space appliance through the MCU and the circuit. The main core of the design is composed by the control core microcontroller AT89S52, digital sensor, LCD FM12864M-12L and some other peripheral circuits. This paper mainly introduces the performance,...

Mechanisms and units with reciprocated impulse electromagnetic drives are widely used in many industrial technological processes for material plastic deformation and disruption. With respect to modern energy saving requirements, low-frequency impact synchronous electromagnetic machines attract attention...

It is an important direction to improve the construction level in China to vigorously promote the high strength concrete structures in civil engineering application. The research on the high strength concrete confined by the high-strength stirrup columns breaks the restricted area of the high axial pressure...