Advances in Engineering Research

We investigate the relationships among revealed comparative advantages of Capital-technology-intensive industry, GDP per capita and households deposits in China. With the non-stationary sequences of global Capital-technology-intensive products' exports, we constructed the vector error correction model...

Lighting design is an important means of creating a space atmosphere of clothing stores, good lighting effects can effectively enhance the brand image value. In order to achieve the balance of economy and art of space lighting, clothing store lighting environment often need to consider different design...

This paper studies the DC-DC buck converter response controlled by two second-order single-input control techniques: equivalent-control quantization sliding mode voltage control (QSMVC) and general sliding mode voltage control (SMVC). Simulations illustrate the behaviors of the equivalent-control based...

The idea of side information is introduced into secure watermarking, and a secure watermarking model with side information theory and the idea of cryptography is proposed. In the proposed model, the side information from the cover work, the attack and the detector are considered and fully used in both...

The key techniques of visual monitoring contain searching and measuring multiple targets in large region. However, many intelligent monitoring systems today cannot satisfy these requirements simultaneously. By analyzing the features of creatural vision in predator-prey relation, the relationships among...

The objective of this study is to develop a defensive strategy of the intelligent billiard robot by using the grey system theory. The main purpose of this defensive strategy is to make a “safety play”, which is the defensive positioning of the balls to minimize the opponent's chance to score or to make...

Analysis on the factors influencing the validity of quality talents evaluation is the premise of evaluation. Factors influencing the validity of evaluation for quality talents are evaluation mechanism, personnel policy, evaluation experts, quality characteristic and social relations. The result of factor...

Shopping for agricultural products on line becomes a new form of consumer’s consumption in China. Consumers’ satisfaction degree of online shopping for agricultural products directly affects the development of e-commerce of agricultural products. Centering on online agricultural products, referring to...

In the process of inflation and stabilization descent for the parachute, a coupling effect is generated between the the structure deformation and changes in the flow field around the canopy, which is significant important as well as the dynamic effect of the parachute. Besides, the peak value of the...

Face recognition is an important identification technology, which has broad application prospects. As an important biometric feature with high universal and non-contact collecting, face is increasingly being used for authentication. This paper describes the basic process of face recognition and briefly...

Thermal insulation coating has attracted more and more attention because of the advantages of economic, construction convenient and good heat insulation effect, and it will be expected to promote the development of coatings market and heat insulation materials applications. Based on the above reason,...

The article documents a practical system and its procedure to estimate batteries' remaining energy storage capacities, which are determinants of batteries' economic values, in a bid to facilitate fair-price battery trading. Such trading is in strong demand given today's burgeoning electric vehicles of...

Numerical model of post-grouting bored piles which are applied to specific engineering was built and analyzed, the result of numerical model was compared with the static test result of test piles on site, which confirmed the feasibility and rationality of the numerical model. By the numerical model,...

An adaptive protection scheme using digital relays is proposed for the protection of the distributed systems. Firstly, the impact of distributed generators on protection coordination is discussed. Then, an adaptive protection scheme is proposed for distributed systems with distributed generation (DG)....

Researching the effects of different concentrations of B. thuringiensis and B. bassiana mixed liquor on the mortality of Plutella xylostella larvae in Jiamusi. [Methods] Employing PBS buffer diluted the B. thuringiensis and B. bassiana into different concentrations of suspension, the mixture of B. thuringiensis...

In this paper, a high speed amplifier used in high-resolution GSPS pipelined ADC is described. To satisfy a 14bit 1GSPS ADC accuracy and speed demand, The high speed amplifier adopts two-stage Miller compensation architecture. To increase amplifier gain, active gain-boosted cascodes and cross-coupling...

In order to implement high control performance at low speed (2~5 Km/h) for automatic parking system, a speed control algorithm is proposed based on Fuzzy-PI in this paper. First, the desired speed curve is programmed by taking advantage of Laplace-Gaussian curve. In order to avoid fuzzy blind areas,...

Atom radii are calculated for chemical elements in different energy states based on photon energy of the emission (absorption) spectrum of atoms.

The structure of large ribbed ring stiffened shallow spherical shell is widely used for roof design of gasholders and oil storage tanks. The FEM of scale shell structure is established and the static performance is analyzed. The grid verification and time steps verification are performed to assure the...

The article outlines the transition from analogue to digital protection for a DC traction network, selection methods of protection and their settings. The first trial uses results, suggestions for further enhancements of adjusting methods, using monitoring and increasing the level of automation and mathematical...

When we study a 100-year-vision migration (a long term plan), the population distribution is required to be considered. The young or aging problem and a large proportion of the non-working population are introduced and when the quantized influence of three factors (income, education and social equality)...

An improved maximum entropy method is proposed to detect the error for intelligent distribution terminal. Firstly, a constraint maximum entropy function of the measurement error is established by introducing the uncertainty of the detected data in the intelligent distribution terminal. Besides, the Lagrange...

To improve the efficiency of carrier aircraft security as the goal, around its problems existing in the fusion of resource using, equipment configuration, comb, and analyzes on the aircraft carrier aircraft security resources utilization, the problems existing in the equipment configuration as the breakthrough...

An oilfield is a key overseas oil and gas production project of PetroChina, located in a rainforest environment. The oilfield is developed using cluster wells, and the problem of wellbore anti-collision is prominent. During the drilling process, the mud shale section is long and the clay mineral content...

Classic genetic algorithm is not effective enough in building structural design optimization. This paper pre-sents a building structure optimization design model based on improved adaptive genetic algorithm. First, tak-ing characteristics of genetic algorithm into account, we improve its adaptive crossover...

The relevance of the work is justified by the need for a comprehensive assessment of the quality of coal concentrate used to produce coal blends in the coking process, and resources of coking chemical products derived from them. This information is necessary for making optimal coal blends for coking...

In view of the development of greenhouse and greenhouse monitoring system at home and abroad, the traditional manual control mode has been unable to meet the production demand. Now the Internet of Things technology and greenhouse system combined, proposed based on the Android operating system, intelligent...

With the constant improvement of the level of industrial automation, robots are increasingly used in various fields of industrial production which is one of the most widely used welding robot. Today, however, people mainly adopt teaching methods to control the robot manually, it has some shortcomings,...

In order to overcome the defects of the safety factor of foundation pit stability, reliability theory has been applied to the stability analysis of foundation pit. The theory depends on the establishment of correct failure mode and function of foundation pit. Through the analysis of the influence factors...

The discharge of wastewater which contains dyes, represents serious environmental problem and receives public health concern. It has become a big challenge to degrade and mineralize these dyes. Advanced oxidation processes (AOPs), based on the production of hydroxide radicals are effective methods to...

dynamics method is performed to investigate the force behavior between semi-spherical indenter and single crystal substrate based on eam and morse potentials and verlet algorithm. Effects of different temperature on the contact force, friction force, and normal force are compared, the resistance of substrate...

The purpose of this research is to put forward a fatigue strength test method for the key parts of the carbody. The body is an important load-bearing part of railway vehicle. The underframe is the basis of carbody structure, is the most main body bearing part. This paper put a more in-depth discussed...

we investigated characteristics of soil Hg,soil gas Hg and atmospheric Hg on tomb of Ming Xianling. Xianling is the tomb of the fourth emperor Zhu Gaochi of the Ming Dynasty.Soil samples were collected for determination of mercury. Soil gas Hg and atmospheric Hg is analysed on high mercury anomalous...

In this paper, the function characteristics of instruction are introduced, and the focus is on contact compare instruction and the characteristics of the transfer instructions. With the traffic lights control as an example, this paper proposes the application of contact compare instruction and transfer...

In this paper, an experimental investigation of wetting behaviors of water droplet on rough metal substrates is presented, in order to study the influence of rough structures on contact angles of metal substrates. The static contact angles and contact angles evolution over time are measured with a video...

This paper deals with a novel concept by combining a tension leg platform -type floating wind turbine and a heave-type wave energy converter that is referred as the 'TWWC' (TLP-WT-WEC- Combination) system herein. Concept feasibility study has been carried out by using numerical simulations in the time...

With the continuous development of the national economy, people pay more and more attention to the monitoring and early warning of forest fire. Due to the particularity of the forest area and geographical conditions, if the forest fire happens, it will be a bursty and destruction of natural disaster....

Coffee is one of the most important plantation commodities in the world, where Indonesia is one of the four major groups of countries that export coffee to meet the world’s needs. In East Java Robusta people’s coffee has become part of the community to cultivate even with a low level of productivity,...

Currently the interest in imported goods is very high. Where imported goods have relatively affordable prices with quality in accordance with consumer needs. Therefore, the role of loading and unloading companies in handling imported goods has an important role because they are guided to have reliability...

Falls in the elderly are quite common because their motor skills have begun to decline. The elderly who live alone are often late in getting first aid after a fall, as a result of which intensive care is needed. This paper describes the design of falling detection and notification system for the elderly...

To investigate the impact of opening factors on the ventilation of enclosed buildings, numerical simulations were conducted to analyze the coupling airflow between upwind and downwind buildings. The study focused on the effects of window opening percentages (5%, 7.5%, 10%, 12.5%, and 15%) and the height...

Small Business faced a lack of human resources to manage a business so they have no ability to use and analyze descriptive or predictive data. Weakness in analyzing data causes them to be unable to make strategic decisions in improving their business performance and unable to display competitive advantage,...

By analyzing the problems of the existing landscape design in engineering technology, expert system and intelligent CAD technology is applied to the architecture design of landscape, which satisfy the multiple tasks, multi-level and garden design requirements, and the expected function of the system...

Livestock and poultry farms in china were preliminarily divided into different scales. The popular pollution treatment projects were investigated. With the combined methods of Analytic Hierarchy Process and Grey Relational Analysis, pollution control technologies were evaluated to fit for livestock and...

According to the characteristics of the gas ejection power system, the interior ballistics mathematical model of the combustion chamber and the canister was established and calculated. The results were in good agreement with the experimental results. Then the gas ejection interior ballistics of four...

The purpose for research on cogging effect is to improve thrust fluctuation of PMLSM. As one of the main affecting factors of linear motor, its cogging effect is firstly researched and analyzed in this paper. And then we use finite element analysis software to perform the simulation so as to show that...

The straight-shooting is the torpedo’s important shooting method and its leading angle is key factor. Based on the theory of the torpedo straight-shooting triangle, modeling and discussing the torpedo leading angle variety caused by the target observation errors in straight-shooting. And simulations...

Based on the construction technology of post-grouting, the load transfer mechanism, bearing capacity increasing mechanism and variation of pile-side and pile-toe resistance of combined toe-and-side grouted pile are analyzed. The mechanism of increasing of pile-side resistance and pile-tip resistance...

With the increasingly severe environmental and energy issues, the application of urban electric buses is more popular, but the battery reserve capacity has restricted the popularity of electric vehicles. Regenerative braking energy recovery system can reduce the energy consumption of the electric vehicle,...

Frictional behaviors of nitrile rubber of screw pump stators with liquid nitrile rubber (LNBR) as a plasticizer with different mass portions(5,10,15,20) are investigated by the MPV-600 wear tester, and their physical properties and curing characteristics are studied. The morphologies of worn surface...

We investigat the trajectory tracking problem of quantum systems governed by Liouville equation. With the help of Lyapunov function and LaSlle invariance principle, impulsive control fields are given, which drive the quantum state to a time-variant target state. A numerical simulation experiment on a...

This paper aims at subsurface imaging a target buried in a spherical homogeneous medium. In order to study it, a monochromatic holographic penetrating radar with high resolution is involved. Different from the target in the plane media, spherical ones always result in spherical interference fringes which...

1. Objective: Divide rural financial information service area divided using graph partitioning methods . 2. Methods: By means of one-to-one mapping, the factors of the activity place (area) for rural financial information service object, including population, area and financial activity quantity are...

Freight system is a complex system with multi factors coupling. The relationship among the factors of freight is staggered, showing strong randomness, uncertainty and nonlinearity. The wavelet neural network combines the self-learning ability of the neural network with the powerful detail feature of...

When a search engine returns query results to users, it always returns the number of relevant documents (i.e., hits). The text line containing the hits number is called as hits line. The hits number can be used in several applications such as building meta-search engine, estimating the size and the relevance...

To explore the status of mental status and emotional needs of the left-behind children in Yanbian area in Jilin province, we investigated the mental status and the frequency and content of the children with their parents of 424 left-behind children in Yanbian area. The results showed that the frequency...

HMM models based on MFCC features are widely used by researchers in Tibetan speech recognition. Although the shallow models of HMM are effective, they cannot reflect the speech perceptual mechanism in human being’s brain. In this paper, we propose to apply sparse auto-encoder to learn deep features based...

English for tourism needs to be learned since travel and tourism is a dynamic engine of economic development and job creation throughout the world. In 2016, statistics showed that the travel and tourism industry is one of the highest contributors in global economic development. This significant development...

The geographical scene of high speed railway(HSR) is complex and changeable. To provide continuous and stable wireless access for high speed rail passengers, it is necessary to analyze the transmission characteristics of wireless channel and establish the wireless channel model. In this paper, the HSR...

A uniform threshold is not reasonable as a faraway sensor can hardly get the same signal strength as that of a near one from the target. To cope with this problem, we give an adaptive threshold selection (ATS) algorithm, in which we construct the minimum error probability cost function based on the probability...

As the traffic jam is becoming a serious issue of urban life, collecting traffic parameters for traffic distribution is important and critical. In this paper, we present a camera based system (Traf) to count automotive vehicles for traffic flow analysis use. The system employs the method of background...

Islanding in power system can be intentional or unintentional. In the past most of the methods were developed for the phenomenon of unintentional islanding. Recently as the distributed generator (DG) sources are able to control voltage and frequency in the islanded part, the phenomenon of unintentional...

The fuel regulator based on the linear ultrasonic motor can effectively control the fuel flow. However, the slip of the actuator in the braking phase will cause the overshoot, so that the fuel regulator can not control the fuel flow accurately. In order to reduce the overshoot, this paper presents the...

This article introduces a five-beam three-component balance based on lateral piezoelectric effects,which can be used special bridge wind tunnel test ,and was designed used ANSYS software,and homemade quasi-static calibration equipment for balance. The balance quasi-static calibration result indicated...

The present paper summarized the results of the most commonly adopted calculation models for total solar irradiance on inclined surface. The solar irradiance on inclined surface in Beijing was taken as an example and was simulated using Liu and Jordan, Klucher, Hay, and Perez sky models and the results...

When photographing scenic photos, there will be some tourists, cars or other moving objects appearing in photos, which will affect the effect to some extent. Although inpainting technology provides a solution to remove unwanted objects in a single image, it requires a lot of interactions to indicate...

The research method of studying on parameter boundary of reservoir with polymer flooding has been established, using numerical simulation method combined with dynamic economic evaluation method. Based on Sha two 1-2 units of Shengtuo second area, the numerical simulation model is built and the influence...

Online learning requires high internal motivation and learning independence to achieve satisfying results. Student learning independence is a internal ability to study independently, and can overcome its own problems related to the internet and the use of applications, so as to be able to motivate themselves...

In the Badeng Watershed of Banyuwangi was a flood that resulted in erosion and landslides. The amount of kinetic energy of rainfall can erode the soil layer, leading to high rainfall erosivity. The purpose of this study was to determine the rainfall erosivity and erosion rate with the MUSLE method using...

The demand for improved air quality due to global environmental issues promotes the development of various sustainable energy sources. Hydrogen gas, a clean-burning fuel, can be produced through the electrolysis process. This approach utilizes a dry cell electrolyzer equipped with a polyvinyl alcohol...

With the swift progress of information technology, the deployment of digital twin technology in water resources management within the Yellow River Irrigation District (YRID) demonstrates considerable promise. This study seeks to investigate the effectiveness of digital twin technology in addressing issues...

Historical and cultural districts are vital components of urban cultural heritage, they contribute significantly to urban development. However, these areas face challenges, including the destruction of traditional patterns and spatial values due to modern developments such as haphazard expansion and...

The objective of this study is to reduce marine pollution caused by the improper use and disposal of hazardous liquid chemical waste that does not comply with the procedures and regulations mandated by MARPOL 1973/1978. The research employs a qualitative approach with descriptive analysis. Data were...

Recommendation systems apply knowledge discovery techniques to the problem of making personalized recommendation for information, products or services in the Internet. These works, especially collaborative filtering algorithms acquired relatively satisfactory results. They can millions of users easily...

Modern tanks is the development direction of automation and information technology, in order to achieve this goal, reduce the number of crew tanks, protect the life safety of the soldiers, tanks adopts automatic loading system is inevitable trend of ammunition. Automatic ammunition loading system is...

Two methods, including standard DC power flow model and the improved DC power flow model with iteration process are introduced in this paper for line loss calculation. A line loss calculation model is established based on these two DC power flow models. In order to investigate the accuracy of the DC...

Based on an internally interlinked concept of space design, poplar LVL and oriented strand board (OSB) as panel respectively and mongolica sawn timber as truss member, gluing approach is adopted to combine truss members into single truss for core structure in this paper. There are four categories of...

The wind power and photovoltaic power generation is developing rapidly in China, but there are also serious problems of wind power and solar abandonment[1].In order to promote the consumption of new energy and fully realize the environmental benefits and social benefits brought by the new energy power...

Using the method of complex analysis and through constructing appropriate conformal mapping, the paper has analyzed the plane elasticity problem of dynamic cracks in finite-width single-edged cracked strips, and provided an analytical solution to the crack-tip stress intensity factor. In addition, when...

to be differently using the amplitude section from stack volume, the acquisition footprint can be represented by energy distribution of the raw seismic in the paper. Furthermore, the paper discussed the distributions of the offset entropy and azimuth entropy of the geometry, described the similarity...

The article considers a wind-solar generator based on special electric machines for power supply of various objects. The subject of this article is a wind-solar generator intended for simultaneous conversion of solar energy (using a photoelectric converter) and wind into electrical energy according to...

This paper analyzed the temporal and spatial distributions of volatile phenols in surface waters in Jiaozhou Bay in 1982. Results showed that the contents of volatile phenols in wet seasons were higher than in dry seasons yet were very low. Ocean current and overland runoff were major sources of volatile...

In order to reduce the cost of coal, reducing gangue pile, increase the use of coal gangue consumption, the comprehensive utilization of coal gangue, coal is mainly used for power generation, brick, reclaimed farmland, roads, underground filling, construction materials, chemicals and fertilizers, coal...

Tieweng Castle is found to be the earlist and well-preserved building with brick wall from three kingdoms periods until now. Therefore, Tieweng Castle is of great archaeological, academic, cultural and social values. With the rapid development of zhenjiang city, the activity of the urban construction...

A continuous process flowsheet for biodiesel production from rape seed oil under alkaline condition on a commercial scale was developed. Detailed operating conditions and equipment designs for the process were obtained. A technology assessment of the process was carried out to evaluate the technical...

In contrast with the conventional physical methods, the sub- and supercritical hydrolysis is not only a more environmentally friendly method to recycle the monomer casting nylon (MC nylon) wastes, but also a more feasible way to produce the corresponding monomer. In subcritical water, MC nylon was decomposed...

Numerical calculations for the damping effect of foam concrete cushioning layer in crossing high-speed railway tunnel were carried out, based on the fluctuation theory using the Newmark implicit integration algorithm and he Lysmer viscous boundary condition. Then the measure’s damping effects were evaluated...

The wind characteristics of 6 typical hills (15°, 30°, 45° escarpments and ridges) covered by grass and forest vegetation were investigated by wind tunnel test. The velocity ratio distribution on the crest and downwind slope were obtained, and the effects of slopes, hill shapes and ground roughness...

Measurement error is known to degrade remarkably the target localization accuracy. Cooperative localization using time difference of arrival (TDOA) measurements is a major research subject for positioning applications which is concerned by this paper to reduce the loss in localization accuracy owing...

Four kinds of fatigue cracks are found in a suspension bridge with orthotropic steel deck. Finite element analysis was conducted to investigate the reason of fatigue cracks originated from the cope hole in the transverse crossbeams. The stresses surround the cope holes in the crossbeam are calculated...

With the extensive application of computer and the increasing popularity of the Internet, multi-data processing equipment are combined with each other, and this combination forms an increasingly huge information service platform. With the guiding principal of high reliability, high security and high...

After many rounds stimulation, high permeable zone of Liaohe oilfield heavy oil block has reached high recovery degree. Every steam injection didn’t enter into the middle and low permeable formation, medium and low permeability layer recovery degree is still very low or unused, leading to low steam injection...

A simple, inexpensive, and efficient one-pot synthesis of 1,4-dihydropyridine via Hantzsch reaction was achieved in good to excellent yields under catalyst free conditions by using PEG400 as solvent. In this reaction, PEG-400 was used as the solvent, which has such advantages: absolutely nontoxic, inexpensive,...

The paper considers various approaches of domestic and foreign researchers to the interpretation of the "cluster" concept. It studies the main stages of formation and development of clusters. Possibilities of cluster approach in environmental management for the development of new hi-tech and ecologically...

According to the existing theory, the control scheme of square wave BLDC motor is designed. The scheme mainly includes the single closed-loop speed control part, the PWM signal control part and the gate control signal calculation part. The simulation program was established according to the control scheme....

Several protocols implementing attribute-based group key exchange, which allows users with certain set of attributes to establish a session key, have been proposed in recent years. However, attacks on attribute-based group key exchange in current research have been considered only in stand-alone fashion....

The paper presents the analysis of metalfluoroplastic materials. Russian metal-fluoroplastic materials are not meeting the requirements of regulatory and technical documentation which was adopted by Russian aircraft industry. The review of patents in the area of the methods for obtaining metal-fluoroplastic...

The automobile transport as one of significant sources of the increased danger to environment and employees of coal mines is considered in this article. The data of volumes of emissions from the automobile transport of the coal industry in the form of gaseous and solid pollutants into the atmosphere...

In this experiment, banana stems and leaves were used as the main raw materials to culture Pleurotus ostreatus, and the effects of different ratio of banana stems and leaves, bran and Tenebrio molitor feces on mycelial growth and protein content of Pleurotus ostreatus were discussed. The results showed...

With the changes of society and the progress of the times, computers and network technologies have made great progress. As an important guarantee in the security field, face recognition technology has a wider application range. The combination of computer network and face recognition technology can not...