Advances in Engineering Research

Based on the CFD method, the numerical analysis of the box girder of Gulongshan Bridge is carried out.The static wind coefficient of the bridge box girder under different working conditions is extracted,The influence of the static wind coefficient on the wind speed, the angle of attack and the beam height...

The hybrid membranes for pervaporation of ethanol-water mixture were prepared by filled Lampung natural zeolite (LNZ) into cellulose acetate (CA) casting solution in the varied ratio of CA:LNZ (30:0, 30:5, 30:10, 30: 20, 20:20 and 40:10) wt%. The effect of zeolite addition on the resulting membranes...

A literature review is one way to gain academic insight based on previous research literature. The academic insight that can be obtained is the newness or originality of the research. The paper-based on the literature also presents the process based on the framework followed. Various fields of research...

This paper presents a single-element antenna designed using a jute substrate material. Measured dielectric parameters of the jute material are considered to design the antenna. The shape of the antenna element is considered circular. A circular-shaped defective structure is introduced at the upper portion...

Roads are infrastructure access that is intended to move people/goods from their place of origin to their destination. Good roads will provide smooth infrastructure access and provide a high access rating. Assessment of access and smoothness of a road will affect the assessment of its structural and...

The problem of waste is of great concern because it affects the cleanliness aspect and social issues that can cause conflict within the community. Judging from the rapid development of Samarinda City, it has a profound impact on environmental problems. The method used in this study is a qualitative approach,...

Coconut commodity has significantly contributed to Indonesia as a foreign exchange source through exports. Typically, farmers process coconuts into copra. On the other hand, the potential of other coconut derivative products still holds considerable opportunities for further exploration. Innovation in...

Based on the 4R crisis management theory, this paper presents a comprehensive analysis of the extreme heavy rainfall event that occurred in the Beijing-Tianjin-Hebei region from July 27 to August 2, 2023. This torrential rain resulted in severe flooding, leading to significant casualties and property...

This paper investigates the intrinsic mechanisms of the scaling effect in concrete penetration, validated by a high-velocity experiment. We identify fixed-size coarse aggregates as the fundamental cause for the breakdown of geometric similarity, which leads to this effect. A 2D mesoscopic finite element...

This research aims to analyze the key benefits of implementing Change Data Capture (CDC) in enhancing real-time data availability, particularly in the context of digital transformation. CDC enables instant data updates, which play a crucial role in reducing data latency and improving organizational operational...

Financial resilience is an important issue today. COVID-19 pandemic that has occurred since 2020 causes household finances adversity due to financial shocks. The Indonesian Political Indicator states that most Indonesian experienced a decrease in household income in February 2021. The fact is that many...

Design flood discharge analysis is required in the planning of water structures in a watershed. The unit hydrograph method is commonly used in designing flood discharge calculations that require rainfall data in the analysis. Current technology makes it possible to use satellite data as an alternative...

This paper introduces some effective methods about gas and liquid flow visualization simulation in complex pipeline network with the purpose of decreasing the dependence on the topology of the pipeline network. A method was proposed to define the parametric information of the topology of pipeline network...

With the development of Internet of things, multi-source heterogeneous data of a large number of sensors exist in the Internet of things. How to refine and encapsulate these heterogeneous data is one of the bottlenecks in the development of the Internet of things. In this paper, the data platform uses...

An experimental setup for adapting the absorption mathematical model (M.I. Shilyaev) in the Venturi scrubber for finding the phase equilibrium coefficients by debugging the algorithm in absorption processes of SO2 extraction by water was developed. The elements of basic equipment were calculated: Venturi...

With development of computer and network technology, people access to the Internet grew exponentially, data become an integral part of people's life. More and more companies begin to use load balancing and database replication technology, to ease the pressure on access to network devices and ensure data...

A novel measurement system for gas sensing materials is designed, and is suitable for sheet shaped or unpacked materials. Except for protecting powder materials during test procedures, this system complements the protection of brittle materials which is increasingly popular. The system has two working...

In this paper,peroxidase-like catalyst was prepared by organic synthesis. The removal of elemental mercury in flue gas and the effect of single factor experiments were carried out in a simulated flue gas system. The result shows that mercury removal efficiency could reach 70.6% when 30% hydrogen peroxide...

This paper investigates the fault detection problem for networked systems based on passivity theory. By developing the filtering-based residual generator satisfying passivity, sufficient conditions can be established for ensuring that the fault can be detected in time. Finally, an illustrative example...

The ordinary poly(ethylene vinyl acetate) (EVA) resin can’t meet the requirements of encapsulating photovoltaic (PV) modules, so the service life of them has not been prolonged for 25 years. The chemical modifications of EVA were studied in this paper to improve the properties of PV encapsulants. It...

Silk/poly(lactic acid) (PLA) blend fabric is a new textile material, and it suffers from hardening in the process of wet and dry heat treatment. Softening treatment usually becomes a required process to compensate the loss of softness. In this work, the softeners having different chemical structures...

Based on the observed data of soil water content (SWC) at farmland from May to September in 2009~2012, the statistical characteristics of SWC in farmland at different soil depths (from 0 to 150 cm) and different months in the growing season (from May to September) in Korqin Sand Land were analyzed. In...

Through the analysis of urban rail transit train traction energy consumption system, the main influencing factor of the traction energy consumption can be determined, but its incomplete information, which is a typical grey system. This article according to grey relation theory, establish a urban rail...

A new kinematics rapid modeling method for N-degree-of-freedom (DOF) serial tendon-driven robotic mechanisms with N, N+1, and 2N configurations is proposed in this paper. Introducing the tendon-routing matrix (TRM) and equivalent radius matrix (ERM), which gotten by observing the routing topology of...

Traditional collaborative filtering algorithm based on item and K-means clustering algorithm are studied, the parallel algorithm of collaborative filtering Item-based on MapReduce is proposed by using MapReduce programming model. The algorithm is mainly divided into two steps, one step is K-Means algorithm...

The Gonghe basin in north-eastern Qinghai-Tibetan plateau of China is a potential geothermal field, where there have been some hot springs discovered in recent years. The seismic and magnetotelluric sounding (MT) inversion results in this area show that there are deep crustal fractures which might be...

Earth pressure is the main load acting on the foundation pit support system, which is the result of the interaction between soil and retaining structure. Based on the different displacement modes of the retaining wall under the active earth pressure condition, the finite element method is used to analyze...

The use of acoustic emission technology of prestressed concrete beams damage monitoring research, obtained the prestressed concrete beam damage acoustic emission monitoring of real-time data; according to the value of the acoustic emission energy parameters of acoustic emission, reveals that the bearing...

This paper firstly analyses the necessity of constructing low-carbon emission system in China and put forward the concept of reducing carbon emission by transferring freight flow from road to railway. The methods of releasing the capacity of railway are studied emphatically, including the cost of freight...

In view of the traditional processing defects of histogram image, this paper proposes a new histogram equalization algorithm about second generation wavelet integer transform. Firstly, the method of three level lifting was used to improve to the wavelet integer transform and to extract the low frequency...

Weather information is relevant to people's life, but also directly affects the development of all walks of life. So, how to quickly effective monitoring meteorological information is an important research aspect of contemporary society in the development of science and technology. This design was based...

The radar interference effect evaluation method is a research hotspot in the field of radar countermeasures. In a complex battlefield environment, the assessment of interference effects by a single indicator usually does not reflect the actual state of the battlefield. Aiming at the complexity of radar...

To evaluate the effect of genetically modified cotton planting on soil microbial community structure, four cotton materials, genetically modified cotton 013011 (drought-resistance), SGK321 (insect-resistance) and non-transgenic cotton TH2 (drought-resistant receptor) and Shiyuan321 (insect-resistant...

According to the ballistic missile infrared hyperspectral endmember extraction problem, a hyperspectral endmember extraction algorithm based on the non-negative matrix factorization is studied. This algorithm is solved based on the alternating least square. The signal separation and extraction ability...

The large-scale exploitation and utilization of mineral resources not only brings great economic benefits to mankind, but also produce a series of geological disasters and environmental damages. Traditional monitoring methods require a large number of samples to be collected in the field and take a long...

Phytoene dehydrogenase (PDS) is an important enzyme in carotenoid biosynthesis. Here, the Brassica oleracea var. capitata PDS (BocPDS) gene sequences were obtained from Brassica database (BRAD), and preformed for bioinformatics analysis. The BocPDS1 and BocPDS2 genes mapped to chromosomes 3 and 4, and...

Nowadays, the broadband demand increases dramatically, therefore, the optical fiber communication core network have to develop for larger capacity and longer distance. In view of the construction of DWDM(Dense Wavelength Division Multiplexing) transmission system, the combination of FRA(Fiber Raman Amplifier)...

Cu2ZnSn(1-x)GexS4 (CZTGS) Single crystals have been produced within a sealed quartz ampoule via molten salttechnique using CsCl as the molten flux. The synthesized crystals have been analyzed with X-ray diffraction (XRD), Raman, scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy...

OFDM-MFSK is a robust multicarrier scheme for transmission over fast fading multipath channels. The disadvantage of OFDM-MFSK is a lower spectrum ef ciency. In this paper,we investigate the spectrum efficiency of OFDM-MFSK system and proposes a OFDM multitone FSK modulation scheme. The spectrum efficiency...

In the computer network system, due to the continuous expansion of the application of information storage, the information resources of the network are increasing rapidly. The amount of information transmitted through the network continues to grow and a lot of data storage technology becomes more and...

Embroidery is a kind of world-wide art with a long history and a splendid culture. Crafts-making of the embroidery in China can be traced back to over 3,000 years to ancient times. However, modern techniques for creative embroidery is characterized by using embroidery machine instead of traditional crafts....

The rapid development of data analyze needs high data quality requirements. The data quality also determine the software quality. This paper proposes a test data deisgn method for evaluating data quality. The paper analyzes the data quality requirement model of typical software applications, considering...

Urban microclimates are closely related to the indoor living environment of residents. Factors affecting microclimate are diverse, including building design, urban form, urban heat island effect, and climate change. However, most study ignored the interaction of multiple factors and only considered the...

Generally, long wave propagation numerical models are used to model the propagation of tsunami waves, which both are caused by volcanic earthquakes and tectonic earthquakes that occur in the middle of the sea. In this research, the time and height of tsunami wave propagation are presented and simulated....

This study presents a comprehensive chemical and mineralogical analysis of a zinc oxide ore, and investigates flotation methods and collector agents for its beneficiation. The results indicate that the primary valuable mineral is smithsonite, while the gangue minerals include dolomite, limonite, quartz,...

This paper systematically explores the application of membrane distillation (MD) technology in pharmaceutical engineering for medicine resource extraction, as well as its potential development. The article first outlines the fundamental principles of MD technology and its advantages over traditional...

Outcome-based Education (OBE)-based learning has been implemented to improve the quality of education. One of the important things is to measure the achievement of PLO. The aim of this study is proposed an alternative method of measuring PLO which is measurement carry out used Self Organizing Map (SOM)...

This work focuses on the research and creation of smart syringe pumps for use in telemedicine applications. Delivery of fluids into the patient’s body, including medications and nutrients, in a controlled environment is an important prerequisite for treatment that requires precise flow control. Telemonitoring...

This paper summarizes and discusses the electronic control technology and mechanical structure technology involved in the development and design of AGV (Automated Guided Vehicle), a branch of the rapidly developing robotic technology, and prospects its future development based on the progress and trends...

Currently, the stable optical interference type methane detector performance, long life, but due to manual reading, the low degree of automation, before the test, in order to prevent the emergence of large temperature changes in pressure calibration zero drift, scale values and must be Location temperature...

Efficient mixing of pulverized coal and calcium carbonate particles inside precalciner is important due to the reason that the mix process directly affects the final coal burn-out ratio and calcium carbonate decomposition ratio. The focus of this paper is on the gas-solid flow and pulverized coal combustion...

This paper studies the modified projective synchronization of complex system, focusing on fractional-order hyper-chaotic nonlinear system. Based on the stability theory of nonlinear system and control method, effective scheme of synchronization for complex system is designed. Numerical simulations results...

Phones are the most important part of people’s life nowadays. The investigation found out that mobile phone users always take phones with them when they going out. The frequency of using phones is quite high, people checking their phones almost every 10 minutes, playing phones for a while every an hour....

Effect of wireless LAN technology to China mobile and portable communication is enormous, mainly using wireless LAN network unlimited channel signal transmission. WLAN has information transmission convenient network of flexible benefits. This paper discusses the recent rapid development of wireless LAN...

Study on chloride ion adsorption and combined with the characteristics of sea sand concrete,through the determination of free chlorine ion content in sea sand concrete. The sea sand concrete microstructure and Friedel salt were characterized by using X-ray diffraction (XRD) , scanning electron microscopy...

The aim of this article is a presentation of the results of laboratory tests and numerical and analytical modeling of timber-concrete composite beams with semi-rigid joints made of steel plates and convex nails. Due to good quality of used materials, composite timber-concrete constructions are considered...

It was in 1994 that Taekwondo was officially introduced into China. After that, Taekwondo was put on the list of China's Ninth National Sports Games. Just a few years, China achieved so outstanding results in the Olympic Games as to promote Taekwondo's rapid development in China. The development during...

Commercial DSA anode was employed for electrochemical oxidation treatment of coking wastewater, and the effect of electrolytes, working potential, and ultraviolet irradiation were examined. An effective removal of chemical oxygen demand (COD), thiocyanate (SCN–), volatile phenol and total nitrogen (TN)...

Recent years, more and more company have focused on their human resources management, and separation becomes a very important factor. This thesis analyzes the influence of separation rate on company, so as to manage company better. First, we apply Analytic Network Process to construct a dynamic model,...

Various network architectures are evolved into the next generation wireless system to provide better services, such as wireless mesh networks (WMNs). However, single radio node mesh operating on a single channel suffers from capacity limiting. Multiple radio nodes mesh can obviously improve the network...

Modeling of the turbulent convective heat transfer to supercritical pressure fluids in horizontal circular tubes is achieved through an integral approach, and a traditional mixing length turbulence model is employed into the numerical scheme. Based on this model, heat transfer of supercritical carbon...

From the observations of caving of the overlying roof rock in longwall panels it can be inferred that the caving is dominated by the weak parting layers, laminated nature and massiveness of the roof rock formation. This caving process is controlled by the presence and geo-technical properties of strong...

Experiment with intensity level for the LC30 ceramsite concrete as the research object, changing the content of cement, waste glass,HPP fiber, steel fiber by the orthogonal test to configure waste glass hybrid fiber ceramsite concrete samples, test them compressive strength in order to find the main...

Software anomaly behavior detection depends on the software behavior modeling. The key of software behavior model based on system call is the maturity level of the model. Based on the analysis of currently used software behavior modeling method, Combined with variable-length sequence model and VT-Path...

Microwave has been used to enhance the removal of refractory organic contaminants from wastewater, but there are few studies about its use in landfill leachate. Mechanism and superiority of microwave irradiation are not completely clear in Fenton process. Here, removals of COD, UV254, chroma and fluorescence...

Flow over a backward facing step has been one of important research field in fluid mechanics. By simulating the flow over a backward-facing step and analyzing the instability of fluid in different blowing and suction cases, the mechanism of structural damages and the principle of vortex shedding were...

Coffee beans produced by Indonesian farmers are known as “asalan” (unfermented) coffee and has a bad taste. The aims of this research to increase quality of Robusta coffee bean with fermentation using kefir starter. It is one of processing methods of coffee by soaking the coffee beans and then adding...

The problems arising from the backflow of proppant, rock particles, non-decomposed liquid from hydraulic fractures into the well bore are considered in the paper. The urgency of developing a device for flushing out in the horizontal well after formation hydrofracturing is proved. It is shown that solidified...

The study covers the optimization of physical and mechanical properties and operational characteristics of fiber concrete that include complex influence of a binding agent on structure formation. The optimal composition of concrete ensuring the maximum static and dynamic strength was selected (impact...

The gas industry in the country is the main energy system of the Russian Federation. The main extent of the pipelines unifying the gas supply system (UGSS) is about 700 000km. Out of the trunk, transport systems of gas are 150 000 km, and the distribution lines of the gas supply systems are 550 000 km....

we utilize the first law of thermo dynamics Fouriers Law and Calorie formula to derive the heat conduction equation and to discuss the temperature of the bathtub water in space and time. Firstly, we set time as a constant. In space, we projected the temperature distribution equation to the three planes...

First briefly illustrates the importance of electronic shelter shielding stability, and introduces the principle of electromagnetic shielding; through the calculation of the electromagnetic shielding, summarizes the factors affecting the effectiveness of electromagnetic shielding shelter; finally put...

Aiming at the fact that present environment monitoring systems of ammunition depots have costly wire arrangement, remote monitoring, low reliability and are not able to monitor environment data timely. In this paper, sensor nodes with the core of STM32F103VE chip was designed and the Wi-Fi transmission...

The article analyzes the integral component-wise estimation using a system of balanced indexes as one of the effective estimation methods for the tourist and recreational territory potential. This method implicates the following of a certain algorithm of the study, which includes a number of evaluation...

AAC slab is a component of precast floor slabs commonly used in buildings. As a new product, the performance of AAC must be examined to ensure that its slabs meet the requirements of the applicable standards. Those requirements are reviewed in terms of strength and stiffness. This research was conducted...

To address the prevalent inaccuracies in arch rib alignment and the illogical outcomes of cable forces encountered during the cable-stayed buckle suspension construction of long-span steel box arch bridges, we introduce a novel multi-scale optimization method for determining the cable forces in a 570-m-span...

Hydrilla verticillata is an aquatic plant that contains various secondary metabolites, such as triterpenoids and steroids. Several steroid compounds contained in Hydrilla verticillata are β-sitosterol, stigmasterol, fucosterol, campesterol, and cholesterol. Steroid compounds have the potential as candidates...

As the integration process nodes enter the nanoscale, traditional planar transistors face physical limitations due to issues such as short-channel effects and surge leakage currents. This paper systematically analyzes advanced semiconductor device technologies, including Fully Depleted Silicon-On-Insulator...

Bamboo is a natural material with excellent mechanical properties and environmental benefits. It is susceptible to longitudinal splitting, which can be attributed primarily to its shear behavior parallel to the fibers. However, there is a lack of statistical assessment of the shear stre3ngth. In this...

With the continuous growth of urban population and rapid economic development, urban renewal has become a solution to many challenges such as outdated urban infrastructure, environmental pollution, and traffic congestion. This article discusses traffic management and control under the background of urban...

Accessing accurate and comprehensive food calorie and nutrition data remains a challenge, as existing references are often incomplete, outdated, or difficult to access. This limitation reduces the effectiveness of daily dietary monitoring for both individuals and healthcare professionals. This study...

Computational thinking skills (CTS) are needed for pre-service science teachers as a provision in organizing 21st-century learning. This research focused on developing a Scratch programming learning model by means of a team-based project to train science teacher candidate CTS. Development was carried...

Separation of cobalt and nickel from sulfate solutions was studied, using the sodium hypochlorite solution as the oxidant of Co2+. The cobalt removal rate reached 98% while Ni2+ was hardly oxidized at 80 C, 1h, pH 2.3 and Co2+/ClO- molar ratio of 1:15. Solution pH and the amount of ClO- had more significant...

The estimation of annual average earthquake losses in life long period for simple multi-story isolated-based reinforced concrete (RC) frames based stochastic method models is the focus of the article. An innovative seismic fragility methodology is firstly adopted for seismic loss estimation, that damage...

Successive deposition of uniform metal droplet is a new kind of 3D printing and rapid prototyping (RP) technology. Broad interests have been aroused in the deposition of metal droplets due to its potential application in microstructures fabrication. In this paper, the 3D models based on a volume of fluid...

A secure and efficient routing protocol for heterogeneous wireless sensor networks is proposed to deal with some issues in the LEACH arithmetic. The wireless sensor networks have some sensor nodes that have greater power and transmission capability than other nodes have. Both ordinary nodes and heterogeneous...

he texturization of monocrystalline silicon wafers using a mixture of potassium hydroxide and isopropyl alcohol solutions has been investigated. The texture morphology and pyramid size are affected by the KOH concentration, the temperature and the time together. The surface reflectance and the surface...

In order to change the shortcoming of bonding steel plate method, which can’t improve the stress state of the original structure, this paper analyzed the causes of diseases of the composite box girder bridge at Yancheng east interchange bridge, compared and analyzed the difference between the bonding...

Relatively efficient and precise quantum molecular dynamics simulations were performed to gain fundamental insights into the mechanisms for the primary detonation process of water under shock wave loading using self-consistent charge density-functional tight binding (SCC-DFTB) calculations combined with...

The hydraulic parameters are important for the numerical computation in which hydraulic conductivity is one of the most frequent. The horizontal component of hydraulic conductivity could be obtained with field trial. And the vertical component is usually computed with the horizontal one by dividing a...

The topic of this paper, ecosystem services, is an issue which is on the frontier of interdisciplinary research involving economics and ecology, and also ranks very high on the applied decision-making. This paper reviews the relationship between ecosystem services and ecosystem, ecosystem services and...

Deformation of the outer plate of the car side is very complicated in the forming process. It is difficult to grasp the deformation law and more quality problems. Based on the on-the-spot debugging, the mechanism of the wrinkling problem in the drawing process is analyzed by introducing the forming process...

Nowadays, NOx emission was taken more and more seriously, Emission standard of air pollutants for thermal power plants was enacted newly by Chinese State Environmental Protection Department which is considered to be the strictest NOx emission standard up to now, but similar to other NOx controlling regulations...

Boronizing of steel surface leads to the formation of two phases (FeB, Fe2B). FeB phase has high brittleness due to its high hardness. Thus, the traditional boronizing cannot be applied for tools and machine parts, working in conditions of dynamic loads, but the new method of electron- beam heating in...

In previous studies about cloud computing scheduling algorithm, people usually ignore impact of data transmission between tasks, but data locality and data transmission have a great influence on the data-intensive task, especially for scientific workflow scheduling. This thesis explains importance of...

The Polyvinyl-chloride (PVC) composites filled with micro-Calcium Carbonate (CaCO3), submicro-CaCO3, nano-CaCO3 and nano-coating micron CaCO3 powder were prepared by the method of melt blending process. The tensile properties of the PVC/CaCO3 composites were tested at the room temperature. The interfacial...

A shaking table test of a full-scaled semi-rigid composite beam frame has been carried out to study the dynamic characteristics and the failure mode, the aim of the research is to provide a theory basis for the design of the composite frames. The analysis was concentrated on the dynamic characteristics,...

Difference equation is a kind of important tool to study the rule of natural phenomena. In this paper, we discuss several specific solutions of a class of second order difference equation with boundary conditions.

This paper studies the frequency synthesis for precision time protocol clock generation circuit, and more particularly focused on a multi-rate phase locked loop structure for generating an output signal at a desired frequency with reduced jitter towards the magnitude of femtosecond. We proposed a unique...

The safety signs are widely used in safety management and daily life, which is applied to instruct and manage people, safety behavior. In this paper, the author use the questionnaire survey to research the comprehension of safety signs in the workplace among managers and front-line employee in machining...