Advances in Engineering Research

Isolating the ultra-precision machine from vibrating base is importance in engineering fields. And the vibration isolation system is applied to reduce transmission of vibratory forces to the machine or the foundation. With the development of the vibration control techniques and force actuator in industry,...

the paper substantiates the necessity of the CFD analysis of the underwater vehicle. Algorithm of hydrodynamic coefficients computation is presented. The initial conditions and environment model for computation are defined. Authors discuss results of simulation and propose the approach of hydrodynamic...

Electric vehicle as a new kind of transportation vehicle has broad application prospects in our country. Charging facilities which provide energy with electric vehicles are important infrastructure in vehicle industry development. The equivalent model and working principle of AC charging spots are studied...

Industrial pipes conveying fluid in the long process will produce dirt, which affects the efficiency of transmission. This paper presents a design applicable to pipeline clean-up program. The use of high pressure rotating nozzle head is designed to use high-pressure water jet to clean up the striking...

On the basic of nonlinear model of pitching channel of airship, assuming the condition that the information of the unknown portion of the assumed airship model satisfy the norm-bounded condition and the boundary is known. A adaptation method has been used to solve the unknown information problem in this...

The significance of resident survey in the region. In the study, the environmental awareness of the residents in Pearl River Delta is analyzed with the sixteen dimensions to realize whether there are differences in the attitudes of the residents in Pearl River Delta in solving environmental problems,...

The issues related to determining the non-sinusoidal voltage coefficients at large industrial enterprises of non-ferrous metallurgy with a high specific weight of non-linear loads containing higher harmonics voltage components require special attention. The questions concerning development of an experimental...

For the multi-parameters evaluation problem of wind turbine operational status, the principal component analysis (PCA) methodology is firstly used to reduce dimension, standardize and de-correlate to the SCADA data of wind turbine operation, and get the principal component of the wind turbine operational...

To meet high frequency oscillating and light load conditions, a kind of self-lubricating spherical plain bearing used in the helicopter main rotor system is developed. The self-lubricating liner material is designed and woven with PTFE+Nomex fiber by three dimensional weaving process.The high-performance...

According to the transport characteristics of coal ash and dust, a pneumatic conveying equipment control system for coal ash is designed in this paper. The automatic control of pneumatic conveying equipment is realized. The structure of mechanical system, control system hardware, system software and...

Consumption data not only constitute the basic premise for analysis of, but also provide the basic reference for production, ordering, storage and supply of maintenance materials. This article designs a handheld terminal of consumption data acquisition, which can greatly overcome the disadvantages of...

Agriculture in Western Siberia is a dynamically developing sector that has its firm foundation in results of agricultural research. Plowing-up of high-fertility soils led to changes in the direction of soil formation. It reflected in their quality and productivity. Vastly increased anthropogenic burden...

Characterization of natural products based on the antioxidant activity gains tremendous interest in the past decade. In the current work, the antioxidant activity of the methanolic extract of Ageratina adenophora and Ageratum conyzoides leaves were determined. Both plants belong to the family Asteraceae...

A series of experiments for the melting of cast iron GI15, according to the sandwich-type scheme of the process with a modifier (composition 1, 2, 3) did not reveal any significant differences in the mechanical properties of the modified samples, depending on the mode of administration. Surface examination...

The principle of an additional control in an adaptive friction clutch with a positive feedback is suggested. The authors found the dependence of a torque value of the additional feedback actuation device on the current value of friction coefficient when the clutch with the positive direct-action feedback...

In order to study the influence of wind - hydro hybrid power plant on power grid, the paper represents the method of wind - hydro hybrid power plant, a simulation model combined wind turbine system, hybrid power system with electrical network, SVC, PSS and large hydro power plant was built by Matlab/Simulink....

This large scale engineering project is a complex system. How to effectively manage large engineering project is a problem at present. Firstly, this paper studies Project Breakdown Structure, and then establishes a model of integrated management for large engineering projects based on PBS and Hall three-dimensional...

The research of stock price prediction is very important. Traditionally, the stock price is usually processed as a time series. However, the modelling of such time series is extremely important and vital, and has been attracting the attention of both practitioners and researchers. In this paper, the...

At present ,the prediction result of highway traffic noise is quite different from the actual situation ,the main reason of which is that the prediction model of the sound source is not perfect .This paper considers the actual height of highway sound source ,uses acoustic simulation software to build...

Tacca tubers (Tacca leontopetaloides) was used to produce many kind of foods but has limit in utilization. Tacca tubers has a high starch and amylose content which can be a functional food by increasing the resistant starch content. The objective of this research was to evaluated the effect of autoclaving-cooling...

A tool is constructed for Indoor Air Quality (IAQ) pre-assessment of pre-school buildings on the basis of a methodology that incorporates structured expert judgment and analytic hierarchy process (AHP). The tool calculates the level of indoor air pollutants such as Carbon Dioxide (CO2), Carbon Monoxide...

Beef is an agro-industrial product that is perishable has a high risk in the pandemic era. The Covid-19 pandemic impacts decreasing consumption of products in various sectors, including beef, with the closure of restaurants and cafes, will affect the accumulation of beef supplies so that the quality...

Floods are one of the disasters that often occur in Indonesia. The problem that always arises when floods are the overflow of river water into residential areas that cannot be stopped and causes flooding. Therefore a problem arises, namely the flood detection system that makes flood warnings, which previously...

Environmental Product Declarations (EPDs) are increasingly recognised as essential instruments for advancing sustainability and transparency in the construction sector. Yet, their development, application, and policy uptake remain unevenly distributed across the Global North and South. This systematic...

Earth System Models (ESM) are model that can forecast, and simulate past, present, and future situations including climate change. The local climate has not been well represented by ESM results. The Statistical Downscaling (SD) approach is one attempt to solve this issue. Climate studies in high-latitude...

In ship operations, spare parts management plays an important role in ensuring the availability of components required for ship maintenance, directly impacting downtime and improving operational efficiency. This research also analyses how digital servitization - a digital transformation that integrates...

The study aims to determine the directions that can be implemented in improving the quality of Public Open Spaces in Palu Bay based on visitor perceptions and preferences so that it is expected to be a consideration in planning and designing to support the creation of quality public open spaces. Data...

This thesis focuses on path planning for driverless vehicles and discusses various path algorithms in depth. Driverless vehicles need path algorithms that can plan the optimal route from the starting point to the endpoint for the vehicle based on the map and the destination, taking into account the traffic...

The paper is dedicated to the proposal of optimal composition of factors to determine the premium rates of the compulsory contractual motor third party liability insurance in the selected insurance companies. The main aim of this paper is to find dependence of the premium rates on each factor by usage...

Jason stochastic seismic invention method of simulated anneal is applied in developing oilfield blocks,improved reservoir description precision and oil-gas identification.In order to understand the spatial changes of Xing'anling group reservoir in Suderte oilfield Bei14 block, according to seismic,logging...

On the basis of experimental study, we used the finite element software ABAQUS to establish the nonlinear finite element numerical model of multi-ribbed composite wall, simulating model for reference [7], analyzed the stress of multi-ribbed composite wall structure, and the test results and the finite...

Nowadays, 3D simulation technology is widely used for training electric grid employees in term of simulating transformer substations. However, there is also the need for accident handling and simulation that transitional 3D technologies cannot be applied. This paper introduces an accident-based 3D simulation...

Wind power technology is currently the world's fastest growing and has the most economic benefits of all kinds of renewable energy generation technologies, but the randomness and intermittent of the wind speed and will directly affect the wind farm output. In this paper, the impact of new energy wind...

This paper describes the design of an on-line monitoring system for grid-connected photovoltaic plants. The proposed system consists of a meteorological data collection system for measuring meteorological parameters (e.g. irradiance, ambient air temperature, etc.), a set of data collection boxes for...

To explore the heat and fluid flow characteristics of normally impinging round air jet, a large eddy simulation (LES) of the jet flow at a jet-issuing Reynolds number of 4400 for a orifice-to-plate distance equal to five jet nozzle diameters was encompassed using a computer code OpenFoam. A comparison...

According to the engineering requirement of power distribution network reactive power compensation, the paper presents a software and hardware design method of the STATCOM based on DSP. In order to stabilize the PCC voltage around a prescribed value in the direct current control mode, the three-level...

in this paper, a prediction method was advanced for residential space heating demand under the fuzz environment. This developed method improved the traditional heat load duration curve method via the quantification expression technique for the fuzzy heating durations. The results indicate that the higher...

In view of the features of the remaining oil after a period of production since secondary infilling adjustment of water flooding development oil field, that is, low quality, uneven planar distribution and high vertical dispersal, study on tertiary infilling adjustment optimized well spacing has been...

This paper presents an algorithm of image segmentation of region of interest (ROI), extracts the ROI of a palmprint image and studies the composing features of palmprint. This paper constructs a coordinates by making use of characteristic points in the palm geometric contour, improves the algorithm of...

Mining is a hazardous activity and capital intensive in nature too.  The cost of stoppage of mines, for any reason, for few hours is enormous. The mines need to minimise the stoppage times to improve productivity and to reduce costs. Mining companies should have to go for large size blasts to achieve...

Describes a new more efficient double-tee rolling bar comprising a wall and two flanges and having invariable sectional area equal to the cross section of standard profile, wherein each of the shelves is conjugate with the wall by a pair of circular triangles, with the radius of each of them is where...

The emergence of pillar-free pillar technology instead of coal pillar technology has raised new requirements for safe production of coal mine. Based on the analysis of gas source, the effects of total pressure change, air flow and main fan stop on gas emission were expounded respectively. At the same...

The battery is important storage device in the photovoltaic power system. To reduce the investment cost and to prolong the service life of battery, a three-stage charging methord for battery in photovoltaic power system is presented in this paper. The simulation model of the battery charging system has...

The NiAl-based composite strengthened by TiC and Al2O3 was synthesized by thermal explosion and hot extrusion. Its microstructure and mechanical properties were investigated by XRD, OM, TEM and HRTEM. The results reveal that the NiAl-TiC- Al2O3 composite can be densified with less porosity. The NiAl...

Tm3+-doped Li2O-SrO-ZnO-Bi2O3 (LSZB) glasses that are suitable for optical amplifier applications have been fabricated through the conventional melt-quenching method, and the spectroscopic properties of Tm3+ in the glasses were characterized. The density, the refractive indices, the optical absorption,...

An improved active learning method taking advantage of feature selection technique is proposed. In early stages of active learning, the whole dataset is described using only the few key features, so that its overall distribution characteristic can be learned easily, reducing active learning’s possibility...

Tissue-engineering technology was important and popular which combine medical applications and engineering materials knowledge such as a cell extraction process, which was employed to remove the cellular components from porcine dermal, leaving a matrix of collagen, elastin, collagen, and tightly bound...

This research was conducted to extract sodium alginate from Turbinaria conoides and its structural property as biopolymer electrolyte. The existence of brown seaweed (Turbinaria conoides) is abundant in Bangka Belitung Islands. The main content of brown seaweed is alginate that it can be used as biopolymer...

Using investigation on Cd in surface waters in 1988 in Jiaozhou Bay, this paper analyzed the vertical changes of Cd contents in waters, defined the settlement processes of Cd contents at temporal and spatial scales. Results showed that in April 1988, in the outer side of the bay mouth, Cd contents in...

The article presents the technical and economic analysis of the investments in new equipment in general or design/ design-technological innovations that depends on an investment budget formation, which determines the net cash flow from the project implementation for the entire exploitation period. We...

The distribution and composition of the 17 organochlorine pesticides (OCPs) in selected samples were investigated with the gas chromatography coupled with Agilent triple quadrupole mass spectrometer (GC–MS). Only DDT has the highest detection rate of 100% within one year period. The total residual concentrations...

This paper introduced the overall situation and tourism resources in Guizhou Province, and studied the anion distribution and air quality of scenic places of this region based on the results obtained by the test of some scenic spot, Using city gravity model and actual data, analysis the potential visitors...

This literature review study highlights the current issues about online learning during the COVID-19 pandemic, which focused on students’ psychological problems. This critical review presents any relevant studies about the pandemic effect on the educational field, which shifted the conventional learning...

The impact of the implementation of the renewable energy power plant to GHG emission has been analyzed in this study. Four types of the renewable power plant have been simulated in the model which are hydro, biomass, solar, and wind power plant. The bottom-up model has been developed to conduct the analysis....

With the development of the AI technology, Machine learning and deep learning have been paid attention on increasing extensively. The neural network in deep learning, especially the CNN (Convolutional Neural Network) were used in aspect of image processing and many kinds of AI projects. Deep learning...

Kendilo watersheds in Paser district is the largest of wild Biuku/Beluku (Batagur borneoensis) habitat and distribution. However, lack of knowledge among the local communities based on morphological characteristics, perception and human habit and activities may accelerate population decline in its habitat....

In 2020 the development of online public transportation in Indonesia increased significantly. There will be 21.7 million registered users in Indonesia. Online motorcycle taxis are public transportation that is in great demand by the public. But besides that, the high number of motorcycle accidents and...

Salinity in drinking water poses significant health risks and challenges for water sustainability. Although there are varieties of water treatment technologies are available, low cost, and efficient alternative of water treatment is always appreciable. This study explores the effectiveness of various...

Drilling is a machining process intended for the formation of holes in the workpiece. The gripper in the drilling process is generally still driven manually. This causes the machining process to take a long time. The purpose of making pneumatic drill chucks using a microcontroller-based control system...

Urban waste management systems critically depend on Temporary Waste Collection Points (TPS). However, in Samarinda City, many TPS fail to meet established standards, necessitating a comprehensive evaluation of their quality, quantity, and continuity. This study aims to assess TPS in Samarinda City using...

The use of deep learning-based CBIR models, particularly those incorporating convolutional nets (CNNs), meanwhile addressed some problems by learning hierarchical features automatically. However, most models now available fail to be interpretable and transparent. This limits their application in sensitive...

As of 2018, the population of Ulaanbaatar city has reached 1,491 thousand people, which is 387 thousand families due to increased movement from rural areas to urban areas, and around 60% of them belong to Ger areas. This survey included about the people living in the 9, 10, 12 Khoroo territories of the...

In the construction process of shallow-buried tunnels, the technology of extra-long large pipe sheds is widely used due to its ability to effectively stabilize the excavation face. However, the implementation of this technology faces numerous challenges due to complex geological conditions, intricate...

Indonesia is an archipelagic country which is divided into development corridors. The development corridor has been stipulated in the MP3EI development master plan, including Java Island. Java is the center of the country's development activities with nearly 60% of the population living on this...

Ship trajectory clustering is one of the main methods for mining ship feature trajectories based on AIS data. However, there are two main problems in trajectory clustering: First, the clustering algorithm itself has the problems of difficult to determine the parameters and poor noise recognition ability;...

To investigate the effects of garage ventilation volume and ventilation area on hydrogen diffusion and concentration distribution after accidental hydrogen leakage in fuel cell vehicles, numerical simulation methods were used to study and analyze the hydrogen accumulation concentration and combustible...

With the development of railways and tunnels’ construction, more and more plateau tunnels are constructed. However, the construction of plateau tunnel is faced with many safety hazards, such as geological disasters, hydrological disasters, heavy snow and so on. Therefore, it is particularly important...

Urbanization’s swift progress has heightened the need for underground space development, necessitating advanced support systems like extra-long pipe-shed technology to ensure safety and stability in challenging geological conditions during tunnel construction. This paper investigates the influencing...

Rainfall is a significant factor of bank slope collapses. In this study, the effects of rainfall intensity and type on bank slope stability are investigated. By establishing non-ponding infiltration models and ponding infiltration models, the bank slope stability model considering rainfall is proposed....

Narajanganj is a historic industrial port city located in the south-east of Dhaka city. Rapid urbanization and economic growth in the last several decades made Dhaka and Narayanganj to function as a common economic whole. As urban agglomeration processes continue within the greater Dhaka region, one...

Precise and high efficiency of moisture content detection is important to the oil production and management in the oil chemical industry. In this paper, a new technology on moisture content automatic detection based on single chip microcomputer is proposed. This system can accurately measure the moisture...

This paper gives an explanation about human resource(HR) practices in Bank Alfalah with the analysis in comparison to Faysal Bank, focus on banking sector to complete the task analysis of human resources management(HRM) practices and procedures for recruiting suitable employees, principles and procedures...

In this paper, in order to study on the influences of hydrogen-oxygen isotope values and phosphate content of soil water, rainfall and sewage infiltration process were simulated through the soil column experiment. Soil water samples were collected in situ, and the gravity flow samples were also collected....

Several typical existing calculation methods of earth pressure considering displacement are introduced and compared; Typical methods are used to calculate the condition of laboratory tests and the result is compared with that from Rankine earth pressure results to explain which is more reasonable. Based...

It is difficult to meet the requirement of practical ability training goal in package engineering specialty with only traditional didactics focused on theoretic lectures. Thus, we introduced "contest driven" didactics in practical teaching sections such as projects of packaging system design course and...

Nanoemulsion (NE) has been widely added into fracturing fluid as flowback additive to enhance fracturing fluid recovery. An environmental friendly nanoemulsion has been formulated. The particle size distribution of the nanoemulsion has been determined. The surface tension and contact angle of the nanoemulsion...

Taking good advantage of the diesel-exhaust with the Organic Rankine Cycle (ORC) System contributes to raising the thermal efficiency, saving fuel consumption and reducing the cost, since there is much energy carried by the diesel-exhaust. There come some problems on the match for the temperature of...

In order to amalgamate distributing platform of traditional TV program with mobile Internet on technology and business, it is necessary to study the method of TV channel recognition based on the collaboration between mobile terminals and publishing service of TV program. Due to some advantages based...

Damaged rolling contact bearings generate vibration. These vibrations may be measured and separated from other vibrations in a machine to analyze and interpret the condition of the bearings and other associated problems. The envelope technique is used to measure the magnitude or energy distribution of...

In order to obtain more accurate data of the ocean water depth, this paper is based on the principle of satellite-based wide area differential GPS positioning technology, through a test, positioning accuracy of differential RTK, differential beacon and satellite-based wide area differential GPS are compared...

The lag of water inrush from goaf floor is a great threat to the safety in production, which often leads to a serious property loss. A three-dimensional DC resistivity method,based on the mechanism and the inducing factors of water inrush,is proposed to monitor the possible water inrush accident in this...

The shear strength of trapezoidal corrugated steel webs is an important parameter for the design of girder bridges with trapezoidal corrugated steel webs. Five I-shaped steel beams with different longitudinal stiffeners were tested to preliminarily investigate the shear behavior of trapezoidal corrugated...

This article contains information about determination of the parameters that affect the formation of failure auger equipment

An electrodeposited Ni-Fe alloy with a nickel content of 75% was introduced in this paper, thickness of this Ni-Fe alloy is 1mm. Microstructure, tensile mechanical, and hardness and the phase were studied by using field emission scanning electron microscopy (FE SEM), tensile test, hardness tester and...

The paper focuses on research the solution of establishing the model of packet transmitted network and implement of it, withing the powerful simulation of network modeling of OPNET. To see the effect of the packet generation rate on the performance of the network, using the Simulation Editor to create...

Theoretical profile stress and displacement of a certain non-overflow gravity dam in a key water-control project was studied in this paper. Plane finite element method and dam-rock coupling effect were both considered. It is concluded that the tensile stress concentration was appeared at the heel and...

Concrete materials' damage and destruction under cyclic loading are known as concrete fatigue. Based on the domestic and foreign literature, this paper analyzes and explores the progress and development trend of the fatigue mechanism of concrete on the aspects of experimental study of concrete fatigue,...

In the present research, a comparative study was conducted between heat reflux extraction (HRE), ultrasonic-assisted enxtraction (UAE) and negative pressure cavitation extraction (NPCE) for extract total phenols and total flavonoids from Manilkara zapota leaves. Single-factor experiments were applied...

LED display design hardware consists of STC89C52 smallest single-chip system, 32 × 32 dot matrix color display arrays, light pen, buttons, LCD display and other components. Color dot matrix red LED is always working in dimly lit scan status, lit STC89C52 microcontroller use homemade light pen infrared...

The paper is devoted to the behavior of steel-concrete beam with Hybrid Full Web and Truss system subjected to four-point loading mode. Steel-concrete composite beam with HFWT system was investigated both experimental and computational using finite element technic. In the finite element analysis, test...

The synergy of fatigue load and corrosion can affect the mechanical properties of the steel bar, and accelerate its fracture damage. On the basis of different cycles of fatigue load on the bar, four-month corrosion under the action of acid or alkali medium test was carried out. Then the synergy effect...

Through the study of the thermal insulation performance of FCB composite panel of finite element simulation,the wall heat transfer coefficient K is determined.By changing different keel spacing and the hole size, studies the influence of different parameters on the wall heat preservation performance.Finite...

In order to improve the glass forming ability of Cu-based bulk amorphous, improve it's mechanical properties and plasticity, the Cu46Zr42Al8Ag4 alloy rods with 3.0 mm in diameter were prepared by the suspend melting-copper mold suction casting. The structure, thermal stability and flexural behavior were...

As the mother tongue of Uyghur Uyghur language plays an important role in the expression and heritage of Uyghur The development of Uyghur information processing technology directly affects the degree of informationization and intellectualization of minority areas. This paper will summarize the current...

The handling of waste problems in urban areas of Surakarta, Putri Cempo Final Disposal Site (TPA) has been overload since 2005. The limitness of land has made the Government of Surakarta to think of innovation by building Waste to Energy plant project. The analysis was done by using secondary data obtained...

With the rapid development of computer software, making the complexity of the software system increased dramatically, the inevitable cost of testing resources is also increasing. Under the conditions of limited resources, how to better find the balance between resource consumption and reliability obtains...

The co-evolution mechanism of manufacturing and logistics is a research hotspot, but there is no good way to estimate the external stochastic disturbance factors and its nonlinear effect on environmental capacity in the existing research. To address this issue, a co-evolution population ecosystem of...

Based on the theory of optimization, this paper researches the route planning of multi unmanned aerial vehicle(UAV) cooperative task and the task planning problem of multi UAV scheduling. In this paper, we set up a feature point location model based on the traditional base station location model, which...

Road traffic accidents still become major problems for Indonesia causing more than 25,000 deaths per year. One of the challenges faced in making road betterments is how to identify and prioritize black spots with minimal accident data. This study offers an innovative approach to combine Equivalent Accident...