Advances in Engineering Research

Many researchers have studied the various properties of selfcompacting concrete (SCC) with the addition of several types of powders, utilizing both traditional and statistical (mathematical) methods. The novelty of our research is to use the response surface methodology (RSM) to develop a mathematical...

This study combined ANFIS with a bacterial foraging optimization algorithm (ANFIS-BFO) to predict the daily suspended sediment concentration based on the daily series data observed at the Rio Valenciano hydrological station near Puerto Rico, USA. Meanwhile, ANFIS with grid partition (ANFIS-GP), ANFIS...

Ground motion duration can significantly influence the dynamic response and cumulative damage of structures. To investigate the influence of ground motion duration on structures with pinch degradation behavior, this study used the seismic design spectra as the target spectra, and the spectra matching...

To improve the anti-crack performance of Al-Cu alloys, the geometries, relative stability as well as growth strategies of AlnCu (n=1-9) clusters were investigated with spin polarized density functional theory: BLYP. The results reveal that the Cu atom tends to convergence aluminum clusters to close-packed...

The choice of gas mediums will affect the reflected shock pressure and temperature during analyzing the shock tube. Different mediums in driver and driven section result in the Mach number disparity in the process of shock wave propagating, adversely affecting the reflected shock wave. Based on the ideal...

Android system is the most widely used smart phone operating system at present. As the Android system is a Linux based open source operating system, so anyone can operate it on the smart terminal, which brings seri-ous security problems. A security reinforcement scheme for mobile applications based on...

Using a chemical-ultrasonic process, a modified cellulose nanofibers aerogel, graphene oxide/cellulose nanofibers aerogel (GO/CNF) aerogel, was prepared, which was applied to adsorptive removal of sulfamerazine from water. The SEM, XRD and FTIR were used to characterize the GO/CNF. The as-prepared GO/CNF...

Corrosion can remain a huge obstacle to the rehabilitation project of Missan Oilfields in Iraq, which is detected with high corrosive H2S/CO2 contents. To minimize corrosion risks in the annulus, a packer fluid has been set between the tubing and the casing above the production interval, and to fill...

Complicated geological conditions and high level ground stress are often encountered with challenges in the construction of underground caverns. It is a key problem to ensure the stability of surrounding rock during construction and operation. The numerical method can be used to simulate and predict...

This paper design of a electronic code lock circuit under EPC system network. the system mainly including the minimum system SCM, password input matrix keyboard, password storage circuit, unlock circuit, LCD display circuit, buzzer alarm circuit and VD indicator circuit. The main program flow chart complete...

In this paper, tyred wheel dynamic response to road excitation during rolling has been simulated using finite element modelling in a graphical programming environment. The actual contact is an area not a single line and the contact edges are subject to continuous impacts during the rolling. The structural...

This paper presents the results of investigations recently done by our research group that improve the properties stability of GMI sensors by exploring the giant magneto-impedance (GMI) and the GMI-hysteresis of Co67Fe4.5Cu1Si12.5B15 amorphous thin strips, which was the most promising soft magnetic material...

With the rapid development of information technology, the popular online shopping came into being, which have lead to a huge number of online shopping packaging waste, and become an important source of environmental pollution in the world. In this paper, the present situation and main problems of online...

This paper investigates the wear mechanism of WC (tungsten carbide) drills in drilling titanium alloy (Ti-6Al-4V) with graphene oxide suspended cutting fluid and conventional coolant. By analysing cutting forces and examining the worn surface of the drills, wear progression in the cutting experiments...

This study investigated the use of nanoscale bilayers assembly for superhydrophilic and superhydrophobic surface modification on stainless steel plate. This study performed nanoscale bilayers assembly method ,as well as chemical vapor deposition (CVD) to perform fluorosilan treatment on the modification...

Graphite phase carbon nitride (g-C3N4) as a novel semiconductor photocatalysts attracted widespread attention in recent years. In this paper, the lamellar g-C3N4 nano-materials prepared from solid urea was used as a photocatalyst to degrade the simulated dye wastewater under visible light irradation....

With the rapid development of PV charging station with storage system, due to the inadequate utilization of solar energy in traditional off-gird charging stations and grid-connected charging stations, this paper present a novel connecting and off-grid PV charging station with storage system, which with...

With the popularity of the Internet of Things technology applications in various fields and the continuous improvement of technical level, the intelligence level of China's medical equipment industry is also growing. For example, the infusion monitoring system in the application of intravenous fluids....

Tin dioxide is one of the most promising anode materials for the next generation rechargeable Li-ion batteries owing to its high theoretical capacity (782 mAh g 1). The flower-like SnO2 clusters were successfully prepared via a facile one-step hydrothermal method using sodium stannate as a Sn source...

In this paper, we discussed the problem of two-dimensional (2D) direction of arrival (DOA) estimation for non-uniform L-shaped array, and for this, a low complexity multiple signal classification (MUSIC) algorithm is proposed. The proposed algorithm uses two one-dimensional searches to achieve the joint...

This paper synthetically analyzes and compares classical denoising methods, discussing their respective field of application, their denoising performance and influencing factors, etc. We summarize the advantages and disadvantages of these methods. Finally, vibration acceleration signal sampled on Diesel...

Hydrogen is very promising as engine fuel due to its excellent combustion and emission characteristics. In order to improve the emission of a spark-ignited gasoline engine car a set of hydrogen injection system was added to its gasoline engine and the engine can be fuelled with gasoline, hydrogen or...

The emissivity of different topographies of iridium films which were obtained using Ir(acac)3 (1.216×103 Pa) and hydrogen (5.575×104 Pa) in a cold-wall reactor at atmospheric pressure was studied. The bigger size the grains are, the uneven topography is obtained, the higher the emissivity is. The bigger...

It has been proved earlier, that boriding improves cobalt durabil-ity and that of the alloys under study during treating at room temperatures. The present paper describes the influence of diffu-sive boric coatings on the mechanical properties of cobalt alloys during treating at high temperatures, as...

In mining minerals by open-cast method, the environment is exposed to a powerful man-made impact, a significant part of which is associated with mass explosions during rock crushing. In preparation of rocks for excavation by blasting, a significant amount of dust and gases is emitted into the atmosphere;...

To achieve the green backfill of an abandoned open pit mine with a large difference chute process system, Fushun West open pit mine is used as the research subject. Based on the theory of gas-solid two-phase flow and the characteristics of large difference chutes, FLUENT numerical simulation software...

The traditional collaborative filtering algorithm has no overall quantitative understanding on users' preference. This paper proposes a collaborative filtering algorithm based on improved recommendation sorting. Based on the traditional collaborative filtering rating prediction, three kinds of weighted...

The development of underwater wireless sensor networks (UWSN) is attracting more and more attentions. The MAC layer protocols which are the important part of the network, dominate the method of each node sharing the channel, thus affect the performance of throughput, latency, energy consumption and other...

This research aim designs and tests a vertical scroll pump. The mathematical models of the curves fixed and the orbiting scrolls were used in designing and constructing a vertical scroll pump and the principles of dynamic of machinery was applied to analysis the centrifugal force of a vertical scroll...

This study aims to identify the potential of Tomini Bay resources that can be utilized as a source of chemistry learning. This is a qualitative research using primary data and secondary data. Data collection were conducted through the combination of field research and literature studies. All data were...

The crystallization of struvite (MgNH4PO4.6H2O) is known as an effective way for recovering nutrients from landfill leachate (LL). Recently, several studies have been done to examine nonconventional sources of phosphorus, in order to improve the applicability of struvite technology. This study aimed...

The aim of this study was 1) to develop learning media based on android using crossword puzzles to improve vocabulary skills, 2) determine the feasibility of learning media based on android using English crossword puzzles from material experts, media experts, and English learning, 3) Knowing the response...

The rapid digital transformation of the global maritime industry has reshaped the competency requirements of seafarers and has created new expectations for Maritime Education and Training (MET) institutions. This study analyzes how MET systems can be transformed to enhance seafarer competence in the...

Soursop leaves have a myriad of uses, including boosting the immune system, helping fight cancer cells. The leaf, which has the scientific name Annona Muricata, has become the target of residents who choose alternative paths in natural medicine. Soursop leaves grow abundantly across Indonesia, from lowlands...

Tremendous interest in sugary confectioneries is rapidly expanding, and adding healthier ingredients to gummy jellies enhances the health attributes of a typically nutritionally deficient product. However, consuming these products can pose various health risks. The aim of the study was to develop and...

Fish scales are ubiquitous by products of the food service sector that can be used to reinforce polymer composites. The majority of fish scales are disposed of in landfills, which is deleterious to the environment. This investigation concentrates on the tribological properties of epoxy composites strengthened...

Thermoelectric material can convert waste heat from the combustion gas into electrical energy. The objective of this work was to study the effect of fan power on the electrical output of a thermoelectric generator used in the combustion of wood charcoal. The side wall of the combustion stove has thermoelectric...

Dispersive soil poses significant risks in civil engineering due to their susceptibility to erosion and structural instability, particularly in embankments, dams, and infrastructure. Since the discovery of dispersive soils, their dispersion mechanism has been a widely discussed and researched topic....

This study aims to evaluate the potential of tannin extract from ketapang leaves as a corrosion inhibitor for seawater battery electrodes. The tannin content obtained from Soxhlet extraction, maceration, and ultrasonic-assisted extraction (UAE) using ethanol and acetone solvents at various extraction...

Urban renovation and ecological restoration is a city renewal action with Chinese characteristics, which is an important means of addressing urban diseases and promoting urban transformation and development. This article focuses on the problems brought by the rough development of cities in China to historical...

Traditional signal enhancement techniques, such as oversampling, face limitations due to their increased computational complexity and power consumption. As the demand for higher data rates and quality continues to grow, noise shaping techniques become crucial for improving the signal-to-noise ratio (SNR)...

This study examines the relationship between vocational interests, personality traits, and digital literacy skills, and their impact on academic performance in technology-related fields. Data were collected from 500 undergraduate students using the O*NET Interest Profiler for vocational interests, the...

An analysis of 516 core journal articles on rock and soil consolidation technology in China reveals that research in this field has grown since 2005. Research hotspots include consolidation of soil, excavation pits, loess, and shield tunnels, with numerical simulation being the frontier. Consolidation...

The urbanization process has caused several problems, such as clean water, environmental degradation, and waste management, especially in the peri-urban area. The solid waste management system is a type of basic urban infrastructure that often faces the problem of overcapacity in the peri-urban area....

The online learning process or e-learning requires students to be able to use various Online Video Conference (OVC) applications such as Zoom, Google Hangout Meet and Microsoft Teams. As with other products, OVC user satisfaction must be the main concern of product development companies so that the product...

It's likely undetermined case that the observed signal is less than the number of source number, while the FSK signal of track circuit is mixed with a variety of interference signal. The traditional independent component analysis (ICA) cannot separate source signals. The article separate source signals...

No position sensor Brushless DC motor is widely used in industrial and other fields of automation and consumer areas. Whether it is industrial automation or consumer areas, no position sensor brushless DC motor have achieved more significant results. No position sensor Brushless DC motor has changed...

In order to implement the informatization under the condition of forces global training requirements, the paper constructed the basic process of the battlefield environment simulation model, including geographic simulation model, simulation models of meteorological and electromagnetic environment simulation...

In view of the situation that the transmission elements of YS3118 CNC gear hobbing machine are too many and complicated, leading to transmission errors which cannot guarantee the machining precision, Based on SOV theory, with CNC gear hobbing machine as example, the method of using state-space model...

Study the effects of diesel engine emission characteristics with different adding proportions of ethanol on a DI diesel engine. The results show that with the increasing of ethanol blending proportions, the diesel exhaust gas decreases with the addition of ethanol, the emission of NOX also reduces significantly,...

Design and development of online evaluation system is the current hot research about the online learning evaluation, but the current implementation of the evaluation systems are mostly based on the given evaluation model to develop an experimental system or build a technology framework, which do not...

Firstly, we analyse the common character of inspection testing and certification. Then based on the theory of game theory, the paper analyses the act of finite repeated game by the coal ore inspection. Some measures should be taken to enhance the international competitiveness of the inspection testing...

Aiming at improving vehicle handling and stability performance, a model predictive control based vehicle yaw stability controller is designed via active front steering system. In this paper, the reference yaw rate is varied in each prediction horizon, which can predict the driver's intention. And the...

Spent galvanic solutions are highly aggressive and contain substances, suitable for reuse. Regeneration of these solutions represents both an environmental and economic issue of actual problem. The efficiency of electrochemical regeneration chromate electrolyte of anodic oxidation was monitored. The...

This investigation was undertaken to evaluate a new kind of polycarboxylate superplasticizer .Used polyoxyethylene ether (TPEG), acrylic acid (AA) functional monomer (A)and as the monomer, hydrogen peroxide (H2O2) as initiator, Vitamin C (Vc)as reducing agent, TGA as chain transfer agent, synthesised...

A 2-DOF model with the coupling of vertical and torsional motions is considered to study galloping of transmission lines in this paper. Based on Lagrange equation, the equation of motion is established. dynamic analysis is obtained by using Newmark- method in an example. Finally, anti-galloping VED is...

In this paper explore the terahertz (THz) wave generation based on cavity phase matching (CPM) difference frequency generation (DFG) in a GaAs crystal sheet. This scheme applying cavity phase matching (CPM) is proposed. The wave propagation of the higher frequency pump wave is parallel to the wave propagation...

According to the characteristics and structure of high performance concrete, influence laws of new type lime and calcium sulphoaluminate expansive agent on mechanical properties, deformation properties and microstructures of C50 concrete were investigated. The results show that with the increase of doped...

In order to verify the rationality of the straight pipe's design for the ultrasonic heat meter calibration device, the Computational Fluid Dynamics(CFD) was used to the simulation for the DN25 heat meter, the straight pipe length of the domestic typical structure ultrasonic heat meter was determined...

Earlier research has demonstrated that rigid base, when properly applied, can enhance the cracking and rutting resistance of asphalt concrete layers in pavements. This study focussed on developing the temperature stress distribution of roller compacted concrete(RCC) base by conducting appropriate experiments...

This study evaluates the effects of fly ash microsphere (FAM) on the flowability and cohesiveness performance of cement paste. FAM is a superfine fly ash captured from the coal-fired power stations. It has a mean particle size of around 2 mm and is of spherical shape. An experimental program comprising...

The applications based on Internet of Things are widely used. In these applications, how to efficiently compressed wireless sensor data and recover them accurately is an important problem. In order to solve this problem, we design an agricultural sensor data sparse representation and recovery method...

Design of the main controller using fuzzy logic theory on the basis of the traditional PID control, Using the fuzzy mathematics theory, the use of fuzzy sets to represent the regular condition, and the fuzzy control rules and the relevant information in the control system in the knowledge base as a knowledge,...

In this paper, we investigate the properties of ultrashort pulse propagation in normal group-velocity dispersion (GVD) fiber based on nonlinear Schrodinger equation. A numerical model is established and is programmed and calculated by the split-step Fourier transforms. Nonlinear pulse evolution transmitted...

Aiming at solving the problems of low-efficiency and high-cost of existing auto-focusing methods for microscopic imaging, an on-line auto-focusing method is proposed and developed using dual photodetectors. Firstly, two identical photodetectors are placed in symmetrical positions with equal distance...

The paper uses the uncertainty principle and no-cloning theorem; then combines the fundamental properties of quantum mechanics with the cryptographic hash function together; after that proposes a new security quantum blind signature. The analysis of security shows that the improved scheme has the feature...

Objective: To explore the expression level and correlation analysis of fibroblast growth factor 21 (FGF-21) and its biochemical indexes in serum of patients with hypothyroidism. Method: To collect 168 cases of patients in the Affiliated Hospital of Beihua University, 62 cases of hyperthyroidism group,...

With the development of economic, the construction of offshore artificial island is more and more developed. As one of the common cofferdams, the gravity cofferdam has been widely used in the wharf and breakwater engineering. The deformation is analyzed using finite element method and the results show...

This article focuses on how to accurately evaluate the influence of sound velocity vertical structure on sonar detection performance under acoustic convergence condition. Combining acoustic propagation model with sonar target detection theory, a quantitative performance evaluation model is constructed...

Abstract Texturized Vegetable Protein (TVP) is made from soy protein by extrusion method which is intended to replace meat. The addition of Xanthosoma Sagitifolium Powder (XSP) in the TVP matrix is expected to improve its functional properties. The objective of this study is to determine the effects...

Based on core observation and thin section authentication, the control factors of Oxfordian Stage carbonate reservoir of Odjarly Gas field of Amu Darya Basin were discussed by comprehensive utilization of geological, drilling, seismic data etc. It was concluded that the carbonate reservoir developed...

Based on Reissner theory, this paper investigates the vibration problems of rectangular thick paltes by applying boundary integral method. This paper presents the concept of the quasi basic system, applies the boundary integral method in it and the actual system, and derives the governing equation and...

Counting the number of passengers getting in/out of a bus in each station is a challenging task in smart bus field. To solve the problem, this paper presents a method of automatic people counting for a bus based on a RGB-D video, a zenithal camera in the bus door capturing the passengers flow is set,...

Preeclampsia still becomes a leading cause of maternal and perinatal mortality. The placenta is a critical subject in the pathogenesis of preeclampsia. Excessive apoptosis can cause the malfunction of trophoblast cells in their ability to remodel spiral arteries. Uteroplacental ischemia and endothelial...

The management of medical facilities that have not made use of the information system (IS) has caused various difficulties for stakeholders. For the executive, the implementation of the medical facility management information system is deemed necessary to improve the quality of hospital services, while...

Three-phase induction motors are the most widely used motors and they absorb the largest electrical power among electrical loads. To know the conditions and performances of the motor, it requires the values of its equivalent circuit parameters. At this time, there have been found many methods to determine...

Rubberwood (Hevea brasiliensis) and Jabon (Anthocephalus cadamba) are two promising species that is widely planted in industrial plantation and community forests in Indonesia. The objective of this study was to improve the properties of rubberwood and jabon pellets through torrefacation. Torrefaction...

Coral reefs represent some of the most intricate and biologically rich marine ecosystems, fulfilling a pivotal role in the conservation of biodiversity and the protection of coastal environments. Nevertheless, these vital ecosystems are increasingly endangered by the impacts of climate change, the phenomenon...

Radio Detection and Ranging are used for object detection, distance and altitude measurement, and mapping. RADAR can be used in bad weather conditions and can see objects under the sea and in the air at great distances. Ship radar is one of the technologies in the shipping sector, especially in the marine...

Rise of artificial intelligence chatbots has changed the interaction pattern between customers and brands. Chatbots provide various benefits to firms such as operational efficiency, personalized recommendations, customized experience and scalable engagement. But the critical risks that are often overlooked...

This research shows the design of Smart Charging (SC) using Ant Colony Optimisation (ACO) algorithm for charging 12V 30Ah lead acid battery. This research aims to propose a new energy charging method for electric vehicle batteries using a smart charging system. The new solution to determine the State...

Some agencies in the world warned that the recent flood disaster has been getting worse all over the world. Engineers have studied flooding and its impact with various simulation models. Yet, there is no model considered the best for all estimations of flood disasters in the future. In this paper, the...

In order to study the anchorage performance of split double-pawl bolt, the tensile strength tests of smooth round anchor bolt and split double-pawl type anchor bolt with different anchorage lengths were carried out, and the test results were compared with the relevant literature specifications. The test...

Feeder is transportation that serves parts of the city that are beyond the reach of the BRT/LRT/MRT transportation system or transportation above it and is not connected to the system. This study is intended to assess the performance of feeder public transportation. As for the performance assessment...

Due to erosion by wind and sand, the steel beam coating of cable-stayed bridge becomes thin or even falls off, resulting in corrosion of steel beam. In addition, the strength of concrete tower columns also decreases due to the erosion area of sand. In order to study the damage of the main bridge, cable...

One of the stages in construction project activities is the maintenance stage that must be carried out by the contractor after the Handover I is carried out. At this stage, there may be damage to the construction resulting in additional costs to repair the damage. The purpose of the study is to identify...

This paper proposes a method of rotor position and speed estimation for magnetically suspended permanent magnetic synchronous motor (PMSM) based on modified sliding mode observer(SMO). In order to weaken the chatting phenomenon, the estimated back-EMF is brought in the current model and a hyperbolic...

This paper proposed an air pollutant source location system with the combination of the wireless sensor network (WSN) technology based on Zigbee wireless network and an optimized least square method. The system, which can realize the coarse location of the possible air pollutant sources, is illustrated...

This paper attempts to establish mathematical models to evaluate and predicate water problems in the example of Qingdao.We establish a multi-indexical evaluation system of water resources to access regional water capacity and attempt to analyze the corresponding causes. We use Comprehensive Evaluation...

In this literature article, we conduct research on the regional water resources development threshold model based on neural network. With the development of industry and agriculture and the increase of population, water availability will increase, which brings us up out of the water resources characteristics...

The native biodiversity and integrity of riverine ecosystems are dependent on the natural flow regime. Maintaining the natural variability of flow in regulated river is the most important principle for the operation and management of environmental flow (e-flow). However, climate change has altered the...

Mobile user identity is an important part of mobile Internet security research. In this paper, it introduces the development status of user identification and authentication technology in "Internet +" era, and briefly describes their implementation plan and evolution trend. the security problem of each...

Up to now, a large part of the debate and the initiatives involving rural areas have still tended to concentrate on activities orientated to markets (qualification of the productions, valorisation of the system of services to tourism, interventions on the valorisation of cultural resources), leaving...

single and double layer alginate calcium iron gel beads were prepared. The adsorption property of alginate calcium iron gel ball on Cr(VI) was studied, under the existence of Fe3+. The effects of the number of layers and the sequence of Fe3+ in gel ball on adsorption of Cr(VI) were discusses, and the...

This paper highlighted a new improved ant colony optimization algorithm was realized to deal with structures optimization problems efficiently, with several special improvements. The new algorithm procedure was written by the MATLAB language. The numerical simulation results demonstrated that this new...

Networks-on-chips connect multiple cores together and have been widely used in electronic devices. This paper focuses on the mapping problem of networks-on-chips We propose an algorithm MART to improve the real-time performance of applications and minimize the communication cost. Experimental results...

This paper introduces the currently manufacture process of seamless pipe and the main factors that reduced seamless pip quality and quantity during production. Developing a machine that can automatically detect center point of raw ingot and punch oriented hole besides, it’s controlled by a remote control...

In this work, theoretical calculations have been performed on urea maleic acid (UMA) by using density functional theory (DFT) method at B3LYP/6-311++G(d,p) basis set levels. In calculation of electronic absorption spectra, TD-DFT calculations have been carried out. The calculated HOMO-LUMO energies confirm...

Based on the structural reliability theory, the extreme wind speed forecast method was used to establish the reliability model for analyzing aerostatic instability of long-span suspension bridge. The limit state equation of reliability analysis model is a function of conversion factor, critical wind...

The bottom-hinged oscillating wave surge converter (OWSC) is a type of wave energy device that consists of a buoyant flap that is free to oscillate about a pivot. It completely penetrates the water column and is located within the near shore region. This paper presents an experimental study on the dynamics...