Advances in Engineering Research

The availability of the equipment system is calculated with the Monte Carlo simulation and GO method based on the principle and operation characteristics of the equipment system in this paper. The analysis results show that this method has high simulation accuracy and can more accurately and objectively...

As the important tool of network finance, YU’EBAO has highly financial product yield, liquidity and other advantages compared with bank. But accompanied by such financial products innovation, their earnings also gradually fell back. By Eviews 6.0 ,the paper studies YU’EBAO annual yields from May 30,...

The formation of secondary organic aerosol products from photo-oxidation of 1,3-butadiene and ozone was investigated in static smog chamber. The effects of ozone concentration and relative humidity on the particle formation were studied. Research suggests that with the increase of ozone concentration...

This paper presents a new reason of the mechanical damage principle of pulse bag type dust collector bag. Three dimensional main structure of dust collector is established. And finite element numerical simulation is given. Also according to the actual situation of customer feedback, the flow field distribution...

In Big Data era, it is difficult to build effecive intelligient analysis and decision support system as urban computing information resources are incomplete and the horizontal integration and contribution of information is seriously inadequate. Intelligient analysis and decision support system largely...

The leakage reasons for a boiler enclosure wall superheater were discussed based on experimental results of macro fracture observation, chemical composition analysis, metallurgical microstructure examination, SEM and EDS analysis. It was presumed that weld flaw firstly formed due to large weld process...

India offered a biggest source of natural fiber like banana, rice husk, coconut and jute fiber etc. All the natural fiber has its unique advantages as well as mechanical properties which are very useful in the development of potential composites for various applications like transportation, automotive...

Stress conditions of downhole packer are more complicated. Based on the packer structure and the environment the metal material exposes, this paper establishes proper numerical simulation model. And ANSYS software is utilized to carry out finite element analysis of built-up model to obtain stress distribution...

In order to study the influence of different loadsand cross section size on RC beam plastic hinge, a total of 13 reinforced concrete beamswith 5 section sizeswere tested under monotonic loading, and the calculation of pure bending plastic hinge parameters considering size effect isstudied based on experimental...

In the mobile field strength test including road testing and so on, because of the complexity of the city electromagnetic environment, the received field strength value is easy to be affected by Fading and therefore the result is not accurate. In this paper, A Preprocessing Method for field strength...

This paper mainly studied the influence of the amount of straw on the initial setting time and final setting time of the polymer cement, as well as the influence on the mechanical properties and thermal conductivity. Learning from the experiment, we could find that the porosity increased with the increase...

A multi-relaxation time lattice Boltzmann method (MRT-LBM) fluid flow analysis code is developed based on a two-dimensional D2Q9 lattice model and sub-grid eddy viscosity model of Smagorinsky. Benchmarking of the MRT-LBM is performed for a turbulent flow over staggered tube bundles at Reynolds number...

In the present work, natural convection in a square cavity filled with an electrically conducting fluid has been numerically investigated in the presence of an inclined magnetic field using lattice Boltzmann method. The vertical walls of this two-dimensional cavity are heated differentially while the...

In the absence of urea, urease is demonstrated to catalyze the hydrolysis and polycondensation of the SnCl2 aqueous system to form crystalline mesoporous SnO2 at room temperature. The resulting SnO2 has a high specific surface area of 231~248 m2 g-1 with uniform pore size at 3.3nm, and the porous structure...

The processing of scrap ammunition is an activity that reduces scrap ammunition dangerous properties and solves the problem of ammunition security retirement by the use of various technology methods and means. The foreign ammunition destruction situation and ammunition destruction at various stages are...

The article deals with methods of computer and mathematical modeling for estimating the impact of the Leninsky Prospekt highway on the phytocoenoses in the campus of RUDN. The computer model of the spread of pollutants from the Leninsky Prospekt highway has been constructed. Margalef, Menhinick and McIntosh...

According to the 60 GHz OFDM-UWB system of IEEE 802.15.3c standard, the characteristics of the preamble Golay complementary sequence are analyzed for better timing synchronization scheme that can resist multipath interference. The normalized autocorrelation method is used to detect the falling edge for...

New varieties of spring oats Otrada and Foma have been created in the Northern Trans-Ural Agricultural Research Institute. Midseason varieties are resistant to drowning and shedding, and mid resistant to spring-and-summer drought, have potential productivity of 7,0 - 8,0 t/ha. The top grain yield of...

The main purpose of the work is to confirm influence of operating conditions at low temperatures on change in braking characteristics of cars. The factors influencing the result of braking are determined, cars from the general set of all vehicles operated in Ulan-Ude are selected, taking into account...

The study reviews the developed model of deformations accumulation and depletion of the metal plasticity reserve at the cyclic fatigue life stage. Such model is based on the ideas relating to the index of stress state scheme and consistent in terms of physics. It is shown that the type and numerical...

Here, graphitic carbon nitride (g-C3N4) was integrated with polyurethane foam (PUF) as a novel metal-free visible-light-driven photocatalytic foam (g-C3N4/PUF) by a facile ultrasonic method. The fabricated samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy...

This study aims to describe the learning outcomes of multiple intelligences (visual-spatial and linguistic intelligence) of students who are raised with inquiry learning model that is guided on the reaction rate material at SMAN 1 Krian Sidoarjo. This type of research is pre-experimental with One group...

Pavement skid resistance condition should be taken into account with due care when evaluating the highway maintenance qualities, because it is related to the users' life and property. The research proposes skid resistance evaluation methods (safety focused) and the main evaluation parameters on the basis...

With the increasing scale of Internet of Things, the problem of congestion is brought about in the process of data access and control, and the important data cannot be updated in time. In view of the above problems, the paper proposes the model of device attribute priority based on analytic hierarchy...

Pavement performance of Foamed Asphalt Mixture in Mid-Surface of Expressway is studied in the paper. The production process of foamed asphalt mixture in the construction site mixing station is briefly introduced. Experimental study on water stability of asphalt mixture by immersion Marshall test and...

It is analyzed the wetting front position and derived an approximate analytical solution of Richards' equation (RE) with van Genuchten model, which is usually used to determine the soil and water characteristic curve in porous medium. Based on Boltzmann transformation, a special variable is constructed...

The global demand for green technology and energy efficiency is driving the development of a new intelligent agriculture with low-power consumption based on the Internet of things. This kind of Internet is constantly being used in intelligent agriculture. The new wireless network can work for a longer...

The multi-objective optimization design for complicated reinforced cylinder structures was discussed by combining the ISIGHT multidisciplinary optimization design framework. Firstly, the mathematical model of acoustic radiation optimization of cylinder structures was established for sound and vibration...

There is a phenomenon of large sign letters presence in almost all cities in Indonesia at present to mark names of places that are already known by the public, including Malang City. This trend shows that there seems to be a contagion that infects one city to another without apparent reason. This mimetic...

Straw is agricultural waste that has enormous potential as an alternative energy source because of its abundant availability. However, straw has poor intrinsic properties as a fuel. Alkali metal content (especially K) is very high, causing problems in the combustion process at high temperatures. One...

Garbage is an item that we encounter every day and often causes problems. Based on statistical data from the 2020 National Waste Management Information System, in the City of Yogyakarta the highest percentage of waste by type is organic waste consisting of food waste with a percentage of 50.21%. One...

Fish cultivation in tarpaulin ponds or Biofloc Technology (BFT) has been widely practiced by the community. Net fish production at BFT is 45% higher than at others. Tarpaulin ponds with a diameter of 1-2 meters (m) can be filled with 1,000-3,000 catfish seeds. The problem is that when fish farming runs...

PT Pura Barutama Rotogravure Unit 3 has developed an innovative cigarette packaging image randomization machine to address frequent human errors in the image randomization process. The main goal of this project was to create a control panel for the machine. The research used literature review, interviews,...

In the current context of increasing global energy demands, buildings contribute to nearly 40% of these demands. To alleviate this issue, the concept of passive buildings has been proposed. Several passive strategies are used for designing a passive building: good insulation and openings, optimal orientation...

Hanil Jaya Steel company is engaged in reinforcing steel fins with various deformed and according to the Indonesian National Standard (SNI). The product produced by this company is Reinforced Iron or commonly known as Esser Concrete. One of the most important processes in the manufacturing stage of reinforcing...

Foam concrete is widely used in lightweight construction due to its low density and high insulation capacity. This study aims to investigate the impact of varying material compositions on the compressive strength of foam concrete, focusing on sand type and curing age. The objective is to optimize its...

Libraries are facilities available in education that can support the creation of quality education. In order to focus and concentrate when reading books or doing activities in the library, visitors certainly need an atmosphere that is quiet, comfortable, and less noisy. Based on State Minister of Environment...

This study develops a passive cooling system for photovoltaic (PV) panels using phase change material (PCM) to enhance power output and efficiency. The novelty of this work lies in applying paraffin wax (FRW 42) with a tropical-optimized melting point (42℃) directly encapsulated on the PV back surface,...

Accelerated loading test is a common method to study the performance of asphalt pavement, in the process of previous research, there is no conclusion yet on the design of the loading times plan before the test is carried out. For this study proposes a method for determining the expected number of loading...

With the advancement of time and the progress of science and technology, plastic has become a product increasingly used by various communities. The plastic industry has become one of the major industries present in various countries. Injection molding is one of the methods for processing plastic raw...

The thermal decomposition process of magnesite significantly affects the catalytic activity of MgO. The structure, stability and growth strategies of the (MgO)n (n = 1-13) clusters were investigated by density functional theory. From reaction energy it can be seen that the contributions of the small...

EGR system is electronically control system for exhaust gas recirculation. This article conducts a detailed research on the EGR control stagy by a systematical elaborate on development procedure, a profoundly discussion to the components and structural software design, an overall consideration to the...

When polishing the micro cavity of sapphire with abrasive flow, it is necessary to analyze the state of flow field of polishing liquid in the micro cavity to analyze the effect law of polishing abrasive on polishing. It will also influence fluid parameters and the motion trajectory of abrasive in the...

With the rapid development of national economy, our demand for power resources has also increased rapidly. The traditional power grid can not be achieved operational status of equipment for effective monitoring and control, we will not be able to ensure the quality and quality of electricity service....

Long-distance pipeline has always played a significant role and kept its basic position in the West-East Gas Transmission and West-East Oil Supply programs in China. If natural gas or petroleum is not supported by pipeline, its transmission will be inevitably more dangerous to some extent. The study...

Nowadays, with the improvement of buildings leakprofness and indoor decoration materials' widely use in sealing, household air quality has been the object of attention. So we combine the ZigBee wireless communication technology with sensor detection technology and a set of multipoint real-time monitoring...

Purpose In order to help the aged acute myocardial infarction (AMI) patients to take an active part in disease assessment, monitoring, treatment and improve the compliance, the AMI patients can relieve their somatic symptoms effectively, and at meanwhile, the incidence of complications can also be reduced.Method...

In order to specifically support the technology trend of increased miniaturization of Micro Electro Mechanical Systems (MEMS) devices, highly porous ZrCoCe non-evaporable getter (NEG) film has been produced by DC magnetron sputtering from a preformed ZrCoCe alloy target. The porous film is composed of...

This study focuses on the internships (job shadowing) of university students in the information technology industry in Taiwan. The research methods include a literature review and a questionnaire. The participants are university students who have participated in internship programs. Using those students'...

In order to monitor the running status of the PV system at any time, to view the data or the gain, to track the historical data, It's meaningful to develop a data service system from the terminal to the client. The paper analyzes the feasibility of the whole system, and studies the technical problems...

The Pakistan NJ Water Project is located in a typical Himalayan tectonic belt,the regional geological conditions are more complex,in order to understand the regional stress state distribution,stress measurement is carried out by stress relief method of hollow body.The three-dimensional stress state of...

By using the heat balance equation and a modified Fourier law's formula considering the relaxation of heat flow and temperature gradient, a model of the local non-equilibrium process of plate heating with ultrashort laser pulses, modelled by heat flow of time-variable second-class boundary conditions,...

The rapid growth of population and energy consumption has led to a series of problems, such as energy shortage, environmental pollution and ecological deterioration. Making full use of renewable energy and achieving sustainable economic development has become the consensus of all countries in the world....

Nowadays, social network technology provided a lot of ways for users to express their emotions and attitudes online. How to model user preferenced information and provide personalized service is a crucial problem in big data era. In this paper, a new probabilistic model be proposed to model and analysis...

The hydraulic steel gate, due to its specific operating environment, the corrosion is a major factor that causes its degradation. In this paper, by the sem and Tensile testing machine, according to the experimental study on the material of existing hydraulic steel gate structure, its chemical composition...

Recently, Japan with the increase in the cases of using the existing building structures for welfare purposes in recent years is displaying diversity in types of the use of the facilities prior to and following the conversion. In this Study, as the initial stage of the case survey study, cases of the...

In the process of document formalization, feature weight algorithm plays an essential role. It greatly interferes with the performance of the classifier. To improve the classic TF-IDF algorithm on its shortcomings that ignore feature distribution among the classes, we develop a new strategy to weight...

The extensive application of tree model has made tree mining become a hot field in data mining research. As an important branch of tree mining, tree cluster and tree classification plays a fundamental analysis role in many areas. In this paper, a tree cluster and classification algorithm was proposed...

Due to the poor workability of recycled concrete caused by heavy water absorption, coarse surface and multiple spaces of recycled coarse aggregate, it is proposed that pre-allocated self-compacting mortar shall be adopted to prepare recycled concrete, which solves such problems arising from poor workability...

A systematic experiment research is carried out on the study of magnetic memory, aiming at the problem of quantitative relationship between the strain varying process and the magnetic memory signals. The Q345R steel was used as the object material. A large plate specimen was used to perform the magnetic...

Trisilanolphenyl polyhedral oligomeric silsesquioxane (TSP-POSS) with three phenyl groups, was incorporated in concentrations of 6, 12 and 20wt% into 4,4’-methylenebis(phenyl isocyanate) (MDI) and glycerol propoxylate to prepare TSP-POSS/PU hybrid composites models, respectively. The domain micro-structures...

Based on the input-output principle, this paper establishes the policy input and policy output system of Shaanxi high-tech industry by selecting 10 indicators. This paper evaluates the policy efficiency of high-tech industry in Shaanxi Province from 2005 to 2013 by using the method of data envelopment...

Regarding to the limitations of several existing coal mine Measurement-While-Drilling (MWD) data transmission modes in practical application, this paper aims to achieve the application of the acoustic wave transmission technology in coal mine MWD system by using propagation characteristics of the acoustic...

In power system, the normal operation of power grid is based on the intact equipment. According to the past operation experience, once the abnormal state of circuit breaker rejection occurs in the operation of power network, it is very likely that the accident will happen. And such abnormal state often...

In this paper, we present the first principle calculations of the band structure of gallium nitride (GaN)-based semiconductor alloy of AlxGa1-xN for x=0.25, 0.50 and 0.75. Our calculations were performed using the density functional theory (DFT) with the generalized gradient approximation (GGA) and modified...

This paper based on factor analysis, found that the total power of agricultural machinery is the main factor affecting the development of agricultural industrialization. Different stages of agricultural industrialization in Hunan are inconsistent. In order to promote the development of agricultural industrialization,...

We know that Wikipedia is the largest knowledge set in the world, each instance entries can be a semantic entity, and it has richly hyperlinked text. Based on these, we propose a self-training method based on a small number of positive examples to extract the semantic relations and entities from the...

In this paper, a novel illumination processing approach based on nonlinear dynamic range adjustment and gradientfaces is discussed. Firstly, the grayscale of face image is adjusted by nonlinear dynamic range adjustment using hyperbolic sine function in logarithm domain. After finishing the adjustment,...

With the shortage of fly ash in south of China and rush towards sustainability, how to use of resources of volcanic powder has become a new field for experts and scholars. This paper aims to study the suitability of replacing cement by volcanics in producing autoclaved aerated concrete (AAC) and find...

In this paper, the deadbeat control of single-phase photovoltaic(PV) grid connected converter is studied, and the mathematical model of the control model is derived. The application of a large number of power electronic equipment will be reduced, considering the direct power supply of the DC load by...

The increase in urban temperature because of the urban heat island phenomenon affected energy usage for the building sector. Most of the energy usage in the building is for the air conditioning system to achieve thermal comfort. It is necessary to reduce the cooling load by minimizing heat gain to the...

Asphalt modification with nanotechnology materials can be in the form of nanoclay, carbon nanotubes and nanosilica. Recent research found that nanosilica has been proven to improve rutting performance and fatigue resistance in asphalt mixtures. Nanosilica that will be used in this research is nanosilica...

Early Warning System (EWS) at level crossing gates is a system used to provide early warning in the form of signals or lights and siren sounds when a train is approaching crossed. This level crossing is prone to accidents. In order to improve railway security and safety, railway facility detectors have...

To ensure safety of Rongsheng’s ultra-high voltage ram blowout preventer shell, ultrasonic testing was done on the 5mm INCONEL 725 layer on its inner cavity and diameter. This layer enhances wear/corrosion resistance and local strength; key targets are in-layer, unbonded, and subsurface defects. Due...

The prefabricated construction of building electromechanical system is studied. With the whole construction process as the main line, the methods of software and hardware development, numerical simulation and technological innovation are adopted to realize the uniqueness of module orientation, the rapidity...

KCIC Phase I Training Program focus is on increasing competence on the Operation System, Passenger Service, and Maintenance divided into 21 Training Posts, most of the participants came from Fresh Graduates who entered the Entry Level. Required Competence Levels ability to apply knowledge and skill High...

Using the RNG turbulence model and PISO algorithm, a 3D model of a 90° bend was constructed to analyze the influence of pier spacing on the flow characteristics in the bend. The study found that: ① The circulation structure is active in the low-flow region, with interactions between flow velocity and...

In the field of power electronic devices, MOSFET, as a core switching component, is of great significance for improving energy conversion efficiency. Wide bandgap semiconductor substrates (such as SiC and GaN) are taking a dominant position in high-power and high-frequency applications due to their excellent...

In a construction project, determining the amount of the proportion of costs for resources must be precise. Given that the allocation of costs for project resources during the construction period is the largest, so if there is an inaccuracy in the calculation of this proportion, it can result in losses...

In view of the existing problems in the coal sample collection method of the coal seam gas content, a sampling method of fast sealing and sampling in coal seam drilling is proposed and the method's control signal can achieve the non-contact transmission by electromagnetic induction principle. The equivalent...

Mechanical properties of Ni80P20 metallic ribbon fabricated by melt spinning was tested in micro-scale compression, 1 m pillars produced by Foused Ions Beam (FIB) were characterized with nanoindentation. Stress-strain curve together with compressed pillar morphology analyses show that ribbon deformation...

The privacy of stars, freedom speech of the press and the public's right to know has been conflicting. The contradiction caused by the influence of the star identity and the push of the society. Star privacy protection is not only beneficial to realize the star of their own rights and interests, is more...

Wireless data transmission in short distance is a kind of technology instead of cable, which is widely used in many current fields. And it solved the problem that it is difficult for cable wiring due to the limit of environment and condition. For the problem that the length of control command is different...

The effects of intercropping different density (1, 2, 3, 4 and 5) of cadmium (Cd) hyperaccumulator Galinsoga parviflora on cadmium accumulation of soybean were investigated through pot experiment. The results showed that intercropping with 1 G. parviflora seedling increased biomass of soybean compared...

In recent years, the database technology has been widely used in a few fields. The keyword search technology based on relational databases does not require users to master any knowledge of SQL grammar and database schema. Users only need to input keywords, and conveniently search information via keyword...

With the rapid development of science and technology, the ratio of accidents that caused by human unsafe behavior is getting higher and higher in complex industrial systems. Aiming at the situation of lacking the basic theory research about human safety behavior, taking the construction of overall model...

Automatic synchronous parallel operation is one of main functions of marine power station automation. Taking a semi-submersible vessel as the research object, this paper mainly describes the conditions of synchronous parallel operation, detection and achievement way of synchronous parallel operation....

Non-invasive fault monitoring and locating system due to the low installation and maintenance cost and non-invasive the use house has become an important development direction of load short-circuit fault identification and positioning. The paper constructs the overall architecture of non-invasive electricity...

To solve the problem of too large calculating amount in the multi-objective optimization of complicated structure, a method based on Kriging surrogate model is proposed and being used in an aerospace assembly to verify its effectiveness. There are two objectives in the structural optimization of the...

Capon algorithm is a common algorithm for the estimating of direction of arrival (DOA). As it needs two-dimensional (2D) spectrum peak search which costs a tremendous computational complexity, in this paper, we propose a successive algorithm based on Capon algorithm for non-uniform L-shaped array to...

Smart grid is a high-speed, two-way, real-time, and integrated communication system, which can real-time monitor and control grid operation, prevent accident and clear fault timely. A key component of the Smart Grid is a communications infrastructure for data acquisition, monitoring, control and protection....

Frequency Modulation Continuous Wave (FMCW) radar has been widely used in vehicle safety systems now. Many kinds of waveform have been designed to solve the coupling of distance and velocity in multi-target detection. This paper proposes a novel FMCW waveform which contains three sections with same duration...

In cold snowy regions, buildings are usually exposed to deicing salts. The corrosion of reinforcement steel is accelerated under the environment, and results in deterioration of concrete, especially under freeze-thaw condition. Polypropylene fibers (PPF) are used to reduce concrete cracking, and it can...

Different annealing process and the same quenching tempering process were used to execute the heat treatment for Q235Ni0.1Zr0.1Y0.1 new low alloy steel structure, and the microstructure of the steel structure was observed and the mechanical properties and damping performance were analyzed. The results...

With the rapid development of network technology, self-service travel has already became more and more. Booking hotels with online reviews has become the choice of people. The paper takes the hotel's online review as the research object. From the research status of online reviews, according to the problem...

At present it is difficult for the tradition metric equipment to adapt the modernization mass production, a new trace sample device, implements trace liquid automatic adjustment, real-time monitoring and accurate adjustment, using PLC technology and touch screen technology, servo motor technology as...

Based on the characteristics of power users, this paper puts forward the user portrait technology based on big data and discusses the construction of power user portrait. this paper first introduces the concept of user's portrait and large data, principle and function of a picture of the user, and then...

The multichamber device belongs to pulsed methods of forming and is mainly intended for use in small-scale production. The process of forming is carried out under pressure of an elastic disk due to kinetic energy of the piston accumulated throughout the working cycle. The piston is accelerated under...

Complication of producing conditions demands utilization of new technologies. Field test results of acid-implosion action in industrial introduction in order to enhance wells productivity are summarized Design parameters of an implosion device and processing technology provided effective influence in...

Based on the requirements of an experiment, this paper designs a gas sampling instrument with distributed design method, and realizes the automatic collection of toxic samples and real-time communication in multiple points within an enclosed space, providing certain material conditions for the successful...