Advances in Engineering Research

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...

After entering the industrial society, the industrial production activities of humans have increasingly serious degree on atmospheric destroy. PM2.5 is seriously exceeding. In order to protect survival environment of humans, restrict global temperature increase and prevent from reduction of air quality,...

Firstly, the finite element model of a certain car is established, and then according to the regulations and standards of FMVSS 216a's "top compressive strength of passenger car", the test simulation analysis for ceiling compressive strength is presented. By comparing the energy curve, the accuracy of...

The multi-sensor data fusion technique plays a significant role in fault diagnosis and in a variety of applications. Conflict management is an open issue in Dempster-Shafer evidence theory. In this paper, a novel multi-sensor data fusion approach is proposed based on the spectral angle cosine function...

Short-term passenger flow prediction on bus stop is an important base and technical support for bus dispatch strategy. In this paper, a new hybrid prediction model including two single models of BP neural network and time series model was proposed according to the periodicity and randomness properties...

Developing the early-year children’s engagement is crucial to promote their interest in learning, particularly in the science-related lessons. This article reports about the engagement of 15 early-year children in a childhood education program in Jambi city Indonesia and their recognition of some scientific...

The patients of artificial hip joint are recommended to limit the extreme movements that could cause damage of the device, such as salat movement. As many studies performed the simulation by neglecting the presence of synovial fluid, in this study, we examined the performance of artificial hip joint...

The pharmaceutical industry, vital to global health, faces significant environmental challenges due to its energy-intensive processes, chemical use, and waste generation, including the presence of active pharmaceutical ingredients (APIs) in water systems, which contributes to ecological harm and antimicrobial...

In recent years, as society advances and cultural heritage awareness increases, the conservation and utilization of historic buildings have gained more attention in urban planning and design. However, access to these buildings is often challenging for individuals with limited mobility, such as the elderly...

Artificial Intelligence (AI) is increasingly transforming Human Resource Management practices in multinational corporations, creating new opportunities to support the United Nations’ Sustainable Development Goals (SDGs). Although organizations are investing heavily in AI-based HR systems, there is limited...

In the evolution of the construction sector towards enhanced sustainability and efficiency, prefabricated buildings have come to the fore. Nevertheless, issues such as component handling and construction procedures pose significant hurdles. This research investigates an Engineering, Procurement, and...

The construction period of cascade hydropower stations is typically long, and the initial impoundment storage is large. Once an extreme flood exceeding the design standard occurs, insufficient discharge capacity may lead to severe economic losses and casualties. Considering the overlapping mid- to late-stage...

Mineral resources play an important role in a country's economic development and national defense security, and gold is a crucial strategic metal mineral. With the continuous growth of global demand for mineral resources, traditional gold exploration methods are facing challenges such as high costs,...

In today’s rapidly developing industrial sector, mechanical equipment is also more and more biased towards automation, intelligence. In the process of industrial production, mechanical equipment will inevitably have some failure problems. In view of the traditional manual diagnosis of faults may be excessive...

Cases of cardiac disease are growing at a disturbing rate. It is critical to diagnose and anticipate any such disorders. This conclusion is a difficult task that must be completed unambiguously and successfully. The research efforts on which patients are prospective to have heart disease are based on...

As it is known, the development of modern intelligent power systems is based on the implementation of Smart Grid technologies at all stages of electricity generation, transmission, distribution, and consumption. In this context, distribution electric networks have particular importance. In the presented...

Due to the acceleration of global climate change and urbanization, many coastal cities are facing an increasing risk of flooding due to the interaction of multiple climatic factors. Urban flooding will not only threaten the safety of the people but also lead to flood invasion into rail space. Taking...

The effect of electric fields on the aging phase transformation of Al-Zn-Mg-Cu alloys is investigated with the first-principles method combined with vacancy mechanism. The effects of external electric field with different direction on aging phase transformation and electron structure are analyzed. Results...

OFDM (Orthogonal Frequency Division Multiplexing) system dynamic resource allocation can be utilized effectively limited system power and spectrum resources, improve system performance and those are widely studied. This article focuses on the resource allocation problem of a single-user, multi-user and...

This article is to promote, expand the Leizhou peninsula agricultural tourism as the basic starting point and the foothold, using the methods of SWOT to discuss the status and strategies of developing agricultural tourism in Leizhou peninsula and coping strategies. Leizhou peninsula to developing agricultural...

The cordierite powders were successfully synthesized by a solid state reaction method, by using raw materials of high purity powder of MgO, Al2O3 and SiO2, mixed according to the stoichiometric ratio of cordierite. The cordierite powders were prepared under different manufacturing conditions and the...

The basic college computer education is generally facing with the contradiction between reductions in class hours and increase in contents. This paper puts forth some optional solutions aiming at these features of basic computer courses. It has been found that these solutions are very effective with...

The flowering stage is the key yield determinant period of soybean. Short-duration water stress occurring during this stage significantly reduced soybean development and final productivity. Seed treatment with uniconazole powder application plays an important role in alleviating the adverse effects of...

The paper firstly introduces the core tech related to the integrated monitoring system in computer rooms and then summarizes the problems hidden in the system. At last, the paper aims at the elaboration of the design of a new Flex-based integrated monitoring system in computer rooms from tech selection,...

Ecopath with Ecosim(EwE)is the core tool of simulating aquatic ecosystem and originated from Ecopath model. The paper reviewed the principle of EwE and its application in the structure and trophodynamics characters of marine ecosystem, fishery management, marine pollution and set of marine protected...

Fatigue failure is very common phenomenon in engineering field, and fatigue problem is more and more prominent with the development of modern social production to high speed, high temperature, high strength load. In this paper, experiments were carried out by the college students to study bending strength...

With the development of technology and people's awareness of environmental protection, more and more clean energy for power generation, such as wind power, photovoltaic power generation and so on. This type of energy is renewable and pollution-free, but it is intermittent,reliability and stability is...

This paper is focused on a GSM-based motor remote-monitoring device designed on the basis of convenient and safe motor management to help improve motor safety and prolong service life. It is able to monitor operation of multiple motors simultaneously in an effective manner and thus control them remotely....

Evaluation of integrated security situation for highway subgrade comprehensively and accurately has been able to provide the basis for repair of damaged subgrade in reconstruction stage after earthquake. Five indexes have been selected to figure characteristics of subgrade: damage condition, structural...

A NOX emission forecasting model was established for a supercritical 660MW unit boiler combined with random forest (RF) and gradient lift decision tree (GBDT) algorithm. The steady-state working point of the historical data is screened from the SIS system of the power plant. The feature feature of the...

In this paper, we first introduce a more general model of complex dynamical networks with coupling delays and delays in the dynamical nodes than before. Then we further study the synchronization analysis of the complex dynamical networks with coupling delays and delays in the dynamical nodes. Via the...

PC/ABS blend has widely used in vehicle industry. In this dissertation, fracture toughness of PC/ABS blend was studied. The specimens were prepared under various injections molding conditions, such as filling time, melting temperature and mold temperature. The fracture mechanisms were examined with a...

Roller-Compacted Concrete (RCC) is a type of concrete that has similar basic ingredients to conventional concrete but contains much less water and is known as non-slump concrete. Nondestructive testing (NDT) is a very good choice to evaluate the quality and strength of such concretes as RCC. These testes...

The nondestructive determination of Au in gold jewelry mainly takes density testing and X ray fluorescence spectrometer with energy dispersion (EDXRF). Density testing cannot detect gold jewelry alloy and demands that the jewelry shape is simple, while EDXRF is poor in penetration depth, which only can...

Study on the control effect of B. bassiana on 4 kinds of pests of conservatory pests in frigid region. The content of B. bassiana was measured by plate counting method. B. bassiana was prepared into 5 concentrations of fungal suspension, named as G1 to G5, and LD50 lethal dose for experimental measurement...

A efficient data sharing system can not only accelerate the process of software development, the software itself will also be able to compensate for possible vulnerabilities which can greatly improve the quality of software. This paper analyses the storage characteristics and encoding principle of ISFF...

The problem of parameter estimation of rough surface contact interaction due to 3D modelling of fractal model contact interaction, when they are satisfactory to initial surfaces, is solved. This approach takes into account surface contour basic parameters that are essentially relevant to the results...

Crystal glucose is one of the main products of starch production, pharmaceutical and food industries, veterinary medicine. Great demands are placed on the quality of crystal glucose to minimize impurities and improve microbial purity. The article discusses the sources and causes of impurities in crystals,...

Considering their particular geometric structures, the stator and rotor cans in canned motor reactor coolant pump are assumed to be elastic coaxial cylindrical shells in this paper. An ideal, incompressible, swirling fluid flows the annulus between the inner shell (can) and the outer shell (can). Thin...

Triboluminescence(TL) presents many potential applications as the dimmer light source based on its cold photon emission motivated by mechanical action. Here two shortwave TL phosphors, the Ce doped Strontium Magnesium silicate (Sr2MgSi2O7:Ce) and Mn coordinative methyl-triphenyl Phosphonium Bromide(MTPB:MnBr2),...

First of all, this paper establishes evaluation index system, by collecting relevant indexes. And then, we analyze the impact of opening enclosed residential community to every index. Then, we establish the comprehensive model of evaluation to evaluate an opening enclosed residential community in Changsha....

A static voltage stability index base on the network admittance matrix is proposed in this paper, in order to measure static voltage stability at each bus. Compared with the existing analysis indexes, this index has the advantages of fast calculation, wide applicability and high accuracy. In this paper,...

As the development of urban city, the traffic problem becomes increasingly severe, and metro tunnel is a effective method to solve this problem. However, the influence of underground tunnel construction towards existing structure cannot be ignored. For this purpose, based on the Shenzhen metro line 7...

Detecting face image with various poses and expressions is a challenging problem especially if the face database consists of only neutral faces. To solve that problem, the pose and expression of face image should be neutralized first. This study proposes a method to recognize the face image by making...

Exosomes derived from mesenchymal stem cells (MSCs) have emerged as promising candidates in regenerative medicine due to their immunomodulatory properties. Tangential flow filtration (TFF) offers a scalable and GMP-complaint approach for exosome isolation, yet critical process parameters such as flowrate...

In recent years, rock wall crane beams have been widely utilized in the construction of underground powerhouses for hydropower projects both domestically and internationally, owing to their significant technical advantages. This paper presents the structural design and operational mechanical performance...