Advances in Engineering Research

The aim of paper is to propose position control of linear induction motor (LIM) taking into account the end effect, external force disturbance and the uncertainties of LIM model by use of an adaptive command-filtered back stepping controller based on q-axis current compensation to improve the dynamic...

The ecological footprint theory provides a quantitative evaluation method for the sustainable development of real estate development companies .Based on the ecological footprint model and national hectare, combining with the characteristics of real estate development companies, this study calculates...

In order to improve the pitch machining accuracy of gear artefacts, based on the extraction method of the systematic indexing error (SIE), the phase-transfer gear-grinding technique (PGT) was proposed by taking the SIE curve interfere with its phase-transfer error curve. First, the SIE curve of the gear...

Many aspects influence railway vehicle dynamics. One common aspect is the track defect, as the condition of the rail itself will interact directly with the wheel of the train when passing the rail. Dipped rail joint, which is practically impossible to eliminate its existence from the entire track, is...

A fluid is divided into the viscous fluid and the non-viscous fluid. In the fluid mechanics, elemental volumes of fluid move in a flow line with frictional resistance among them. It is similar to the process in a wireless sensor network in which data packets, starting from the source node, are forwarded...

Carbohydrates are a class of important compounds widely occurring in nature and are the main energy source required for all living organisms. Based on the variation of glycosidic bonds in carbohydrates, they can be divided into O-glycosides, C-glycosides, thioglycosides, and other types, among which...

Collaborative application of Radarsat-2 and GF-1 remote sensing data to study the geological structure for Lalingzaohuo area in east kunlun metallogenic belt has been done. On the basis of detailed analysis of the geological background, with the processing of radarsat-2 and GF-1 data, remote sensing...

Less water at critical period has significant effect on crop yield. The deficit irrigation scheduling is important especially for the drought-prone area. The crop water production function frequently used for deficit irrigation analysis neither has the disadvantage in mechanism explanation. In this study,...

Along with the technological development, running complicated program on mobile phone become possible. Mobile device allows to easily capture pictures and do corresponding processing. Thus, this paper puts forward a rapid estimation method which is aimed at detecting large-scale logos in the natural...

Firstly, In order to make the temperature of water in tub fixed, thus, the quantity of heat of water from faucet is equal to the heat loss of water in tub . Secondly, according to thermodynamic energy formula, we get that the quantity of heat of water from faucet has relation with its temperature and...

In this study, aioxidant and anticancer activities of the extracts were evaluated from various habitats of Selaginella doederleinii. The evaluation on antioxidative capacity revealed that the extracts were the highest from Guizhou province using DPPH radical scavenging, ABTS radical scavenging, ferric...

16 different combined schemes, which solve the combined problem of section steel's specification, thickness of lifting plate and welding form of section steel, are designed basing on orthogonal experiment design method. Simulation experiments for 16 schemes are accomplished by using ANSYS Workbench platform....

In the process of producing PAN precursor used in carbon fiber, applying orthogonal experiment method and a dry-wet spinning technology, the main systematical study are the influence of coagulation bath, jet stretch, pre-draft and water-bath draft on degree of orientation. Results show that under applying...

The purpose of this case study is to obtain the level of effectiveness of using the teaching methods system, to provide the appropriate basis for rationality of teaching and learning activities designed. The corresponding data are obtained by the research of MBA students who participate in the course...

Nine cross-section reinforced-concrete short-limb shear wall specimens under monotonic load are analyzed by the nonlinear finite element analysis with the software ANSYS, which compares the change of load capacity, stiffness and ductility of the shear wall when axial compressive ratio changes. The results...

The effects of rape rootstock on phosphorus (P) and potassium (K) uptake and soil enzyme activity of post-grafting generation of Capsella bursa-pastoris under cadmium (Cd) stress was investigated through two pot experiments. Three treatments were used in the experiment: ungrafted (UG), post generation...

A CS-WEC utilizes an artificial spring created by feedback control of sliding-mass angle on the circular track; it is free of problems associated with mechanical springs. This paper also demonstrates that the harvested power is always more with the spring than without, and with the spring, the power...

In recent years, extreme weather phenomenon has happened frequently, for example, rainstorm, hard snow, fog etc. At the same time, extreme weather phenomenon causes easily stagnant water, surface snow, ice on road, highway landslide and other disasters, which causes many traffic hazard points, brings...

China's overall weak legal system environment and clear regional legal system differences existing side by side provides the research background for us to study the relationship between accounting firm scale, legal environment and audit quality. In this paper, using the data of 2014, under China's unique...

The first integral method is applied to solve complex Ginzburg-Landau equation in this work. The evolution solutions for the equation are obtained. This method is based on the theory of commutative algebra, which can be applied to nonintegrable equations as well as to integrable ones. The first integral...

The Covid-19 pandemic has had a major impact on the Indonesian economy, including the banking sector. Both Islamic and conventional banks must seek solutions in order to maintain their financial performance. The government is implementing the new normal era as an adaptation phase for all business lines...

This research is focused on the maximum and minimum temperature and relative humidity (RH) data in Temukus, Besakih Village, Rendang District, Karangasem Regency, Bali Province. We use the Davis Vantage Pro 2 Wireless Weather Station to measure air temperature and relative humidity (RH) at the research...

In this paper, a cutting-edge controller and drivetrain architecture for a renewable energy source (RES) powered Electric Vehicle (EV) has been proposed. Hall-Effect position sensor-less brushless dc (BLDC) motor drives frequently experience delayed commutation at low/high speeds. Conventional control...

The paper presents investigation on a small capacity of horizontal molding-crystal ice block machine. The investigation was motivated by the increasing need for crystal clear ice blocks in Bali as a tourist destination. Therefore, it is necessary to develop a crystal block ice machine that is functional,...

The present work reports a double-layer composite film made of TiO2 nanotube arrays (TNT-arrays) as the overlayer and TiO2 nanoparticle (P25) as the underlayer as the photoanode of dye-sensitized solar cells (DSSCs). The TNT-arrays were fabricated by two-step anodization process. In order to further...

An active noise control system of power transformer is designed and implemented in this paper. EL-VB-FxLMS algorithm is used in the system as the control algorithm, the performance of which is analyzed and compared to BFxLMS algorithm. Based on EL-VB-FxLMS algorithm, a set of practice ANC system is built...

For shorting the shifting time and improving the vehicle acceleration, it is necessary to develop an excellent control strategy of electing and shifting. In this paper we developed the strategy of the electric shifting actuators based on fuzzy PID control and established a fuzzy dual closed-loop PID...

we studied the mechanism of original n- and p-type "intrinsic" organic films 8-Hydroxyquinoline aluminum (Alq3) and N, N'-bis-1-naphthyl-N, N'-diphenyl-1, 1'-biphenyl-4, 4'-diamine (NPB) via using molybdenum trioxide (MoO3) as a p-type dopant. It is found that the conductivities extracted from "holes-only"...

Pyrolysis is a clean method for lignite utilization, and it is greatly influenced by temperature and heating rate. The reaction mechanism and kinetic model were investigated by means of Differential Thermal-Gravimetric Analyzer and Fourier Transform Infrared spectrometer. It is found that lower heating...

Through analyzing numerical simulation about shutter tuyere non-isothermal Jets, the influence of buoyancy flux was studied in axis offset, axial velocity attenuation and the settlement of cold wind. The conclusion is that buoyancy flux promotes axis offset to a certain extent; buoyancy flux does not...

There is a high risk of metro foundation pit construction in the soft soil area, where foundation pit kicking occurs frequently. In this paper, by using the material point method, the failure modes and mechanism of foundation pit kicking are studied. Parametric study is performed to further analyze the...

DC power distribution system can integrate the distributed power generation system effectively and fully utilize this important event to maximum. It can increase operation efficiency, enhance service reliability, improve power quality and interconnect distributed generations safely, this is a new developing...

Originated in Italy, "slow city" model is a newly urban development model. The snail as a city's logo well reflects the value of "slow city" model. Slow speed is a spiritual pursuit of life for mankind. The number of cities all over the world, entitled "slow cities", is increasing while the concept of...

The article discusses the influence of the non-sinusoidal form of the voltages of the supplying three-phase network on the quality of the rectified voltage from multipulse rectifier with a circular outline of the valve shoulder. The research aims at identifying the most stable rectification circuit during...

To improve clustering effects of fast global K-means and reduce time complexity, a highly efficient fast global K-means algorithm is proposed in this paper. Which, maximal point of density in data sets is chosen as the first initial clustering center, then finding the next initial clustering center,...

Magnetic Barkhausen Noise (MBN) is an effective non-destructive testing approach for ferromagnetic material residual stress measurement and evaluation. However, the common MBN signal features such as the time to peak value and frequency spectrum are not accurate enough for stress evaluation due to the...

City road dust was one of the main sources of PM10. In this paper, roads were classified into four types: expressway, trunk road, secondary trunk road and branch road. Dust samples were collected from 17 representative roads of Shijiazhuang city, and were analyzed by laser particle size analyzer. And...

The corrosion behavior of HT250 which mainly used for automobile chassis materials is introduced in this paper, it was soaked in industrial salt solution and environment-friendly snowmelt agent solution of different concentrations, the relationships of the degree of corrosion on the surface of the cast...

In China, a multi-sensor intelligent alarm system based on the sensor identification technology has been widely used across the country and produces a wealth of information data. In the process of actual application, however, the alarm threshold of a traditional gas sensor is set at a fixed value, which...

Research on a type of non-contact driver made of magnetic materials in a rope drum was carried out to solve the problem of leakage in the deep dynamic seals of motor output shafts. An isolation sleeve was added between the inner and outer magnetic rotor, which changed the sealing type from a dynamic...

According to available results of the engineering investigation, the fatigue cracks are inevitably existed in steel bridges because of the environmental pollution, overloading vehicles and larger numbers of automobiles. The static and fatigue tests of the orthotropic steel bridge deck models were carried...

The force-dynamic pattern was first put forward by cognitive linguist Talmy. He applied the physical concept to the cognitive semantics field to represent how entities interact with each other. The present article finds this theory make powerful illustration in understanding the structure of "Get+V-ed",...

Data security of small & medium-sized banks in transmission, storage and even calculation in cloud environment challenges traditional encryption technology. Nevertheless, homomorphic encryption technology could meet users' needs in data privacy and cloud computing resources simultaneously. Current homomorphic...

Deeply analyzing the main performance parameters and best feature size of the outside telescopic arm of embedded retractable telescopic fire rescue equipment, according to the designed structure of the entire system, analyzing the structural performance parameters which affect its work so as to make...

According to disease investigation and analysis of cement concrete overlay of G322 secondary road, analysis model is built by ABAQUS finite element software, vehicle load stress, temperature stress and uneven settlement of widening subgrade and other external factors of cement overlay are considered,...

This paper calculated the reduction factors with layered method for beam sections' intensity after fire condition. With these factors, it built up a resistance model of reinforced concrete construction members. By analyzing the statistical parameters of resistance in statistics, and considering the random...

In order to solve the problem that lower hole-making rate of gas drainage in soft outbursting coalbeds, the ZDY12000 drill is designed. The drill is composed of drilling system and dynamic system. The drilling system including spinner,gripper,feeding body and frame, dynamic system including electromotor-pump,...

To investigate the effects of melatonin (MT) on kiwifruit seedlings under low temperature (LT) stress, seedlings of Actinidia eriantha were primed with MT solution by root irrigation, relative electrolyte leakage (REL), malonaldehyde (MDA) content, chlorophyll content (ChI), hydrogen peroxide (H2O2)...

This article proposes an improvement in the mashing stage in the preparation of malt extract using new modern equipment - a rotary pulsation apparatus. During the operation of such devices, pulsations, deformations, vibrations in the extractant medium, cavitation and grinding occur in them. In the proposed...

Karst immersion-waterlogging disaster is the unique natural disasters in karst area. It has the characteristics of periodicity and sudden. Generally, it mainly distributed in peak cluster depression, peak forest valley and Butte plain area. The main Influence factors including Rainfall condition, Karst...

In this article we present an approach based the type of curve for detecting tangent vertices. First, the geometric features is used to determinate the curve type of the sub-stroke after corners extraction. Second, approximated piecewise parametric curves are obtained and the analytic curvature is token...

Through the research on the optimization of FM power plant, main disturbance of the power grid in a side of turbine, the boiler side mainly response delay and inertia and coal quality and for coal and furnace dust, aimed at the problems existing in the traditional PID in the unit control, based on the...

With the development of contemporary machinery and the automation industry, intelligent systems have been continuously applied in the production of products. As an important pillar of intelligent systems, machine vision, and sensor fusion technology cannot be dispensed in the process of product inspection....

The diagnosability is the inherent property of spacecraft control system, mainly including the fault detectability and isolability. Analysis of diagnosability in the system design stage contributes to reduce the failure risks for it reveal the relation between system structure and faults, which suggests...

The application of blast furnace slag and steel slag mixed as the replacement of cement is an important way to improve the utilization ratio of steel slag .This paper focuses on the performances of the mortar specimen which made by different proportion of blast furnace slag , steel slag and portland...

Currently, there are more and more sluice construction projects, and the demands of project qualities continue to improve. In sluice design researches, stability study may be very difficult. Combining with the practical project, this paper analyzes the stability of sluice chamber and retaining wall in...

A new method is presented for spatiotemporal segmentation of moving-object using evaluation of boundary in infrared video. At first, the ideal seeds of every moving object are extracted based on the “holes” effect of temporal difference, respectively. The focus of our wok is spatial segmentation. On...

A novel external stimulation oscillator was recommended and its characteristics of high efficiency and easy oscillation were proved by CFD simulation and experiment. The superiority and difference of process mechanism of the oscillator compared with self-stimulation oscillator were analyzed. The geometric...

Industrial robot technology represents the highest achievement of mechanical and electrical integration, is one of mankind's greatest achievements in twentieth Century. Industrial robot although only nearly forty years of history, but because of its unique adaptability and anthropomorphic, become an...

The criteria of traditional block matching motion estimation algorithm is based on the gray value offset between macro block, which was sensitive to the noise and the treatment under uneven illumination environment. For above problem, the paper proposed that using canny algorithm extracted the edge profile...

This study takes older blocks around the eight immortals palace in Dongguan of xi 'an as an example to explore the comparison and validation of integration of community public space in the old city with the classification prototype, and then puts forward strategies for the space management. Based on...

Aiming at the modeling of finite element software is applied to product design in the analysis of complex, heavy workload, time-consuming problem, proposed programming language using C# language and ANSYS provides two APDL development tools for the overall structure parameters of type U gantry crane...

Currently, wall construction predominantly uses red bricks, lightweight bricks, concrete blocks, and panels. Research related to value engineering also focuses on these materials. In terms of cost, red bricks are cheaper than lightweight bricks and precast panels. Innovations in construction are continuously...

Pixhawk is an open-source flight control system. The research on the attitude control algorithm Pixhawk uses provides a good reference for the use and development of the Pixhawk. In this paper, it provides a theoretical analysis of the attitude control algorithm of multi-rotors in Pixhawk, and it also...

Water source is a crucial condition for the development of a city. If the development level of a city is to be defined by water, we need to take into consideration not only the carry capacity of urban water resources under the pressure of the rapid development of social economy, but also water quality...

A simple and facile approach of hypercrosslinking was followed to synthesize hollow microporous polymer microspheres (HMPMs) and later incorporated with the magnetic fluorescent bifunctional nanoparticles (Fe3O4, CdSe/ZnS) following the in-situ co-precipitation and swelling methodology. The morphology...

In this paper, the evaluation and prediction model is presented to measure the ability of a region to provide clean water to meet the needs of its population. Considering that the dynamic nature of the factors affects both supply and demand, this model is improved by using the SD theory. And what the...

In order to optimize the process of the fused zirconia-corundum-silica (AZS) material, by the Any-casting software the cooling process of AZS was simulated to explore effects of the critical solidification rate of cast on solidification sequence, coagulation time, probability of shrinkage cavity and...

In order to investigate the simplified design method for damper installed on cable-stayed bridge in near-fault zones, this paper proposed two-particle model for cable-stayed bridge and established the differential equations of motion. Parameter design formula for linear viscous damper is derived based...

The calculation accuracy of stess intensity factor K has direct effect to the results when elastic fracture mechanics is adopted to fatigue life estimation. In order to decrease calculation errors, the steel I-beam with side crack and the steel box beam with central crack have been studied which are...

The effects of tolerant plants (Ranunculus sieboldii, Mazus japonicus, Clinopodium confine and Plantago asiatica) straws on nutrient uptake in Cd-accumulator Capsella bursa-pastoris were investigated through pot experiment under Cd-contaminated soil condition. Five treatments were used in the experiment:...

This paper mainly analyses the necessity to manage the explosive in the coal mine blasting equipment library. It makes intelligent management possible by using digital monitoring technology, communication technology and software technology and sensor technology for reference. High performance microcontroller...

At a time when the whole medical level is promoted, the most commonly used intravenous injection products have not changed much, in the meanwhile many problems arise. Based on the barrier-free design concept and eco technologies, through the eco-criticism aspect and the environmental ethics aspect, the...

Mushroom mycelia have been investigated as a new source of chitin for fabrication of nano materials. This work demonstrated the importance of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-mediated oxidation in developing the functional qualities of chitin nanofibers using Flammulina velutipes mycelia...

The article reveals the essence of the concept of adaptation, in particular social adaptation and its context in the changing socio-economic conditions of society. The authors analyzed interdisciplinary works on the study of the phenomenon of social adaptation. This analysis showed the general integration...

Graphene sheets and nickel powder were dispersed into Polyvinyl Alcohol (PVA) solution by magnetic stirring, and then pre-coating the mixed solution on the polished AISI4140 substrate. And after laser sintering, graphene nickel composite coating was successfully fabricated. Microstructures and composition...

The magnetic iron oxide (Fe2O3) nanorods were synthesized, and the epoxy resin (EP) composites with the content of 1wt% Fe2O3 were prepared in the condition of magnetic field. X ray diffraction, scanning electron microscopy and comprehensive physical properties measurement system were used to characterize...

In order to address the significant weakening of mechanical properties in roadbed materials in cold regions under long-term stress-freeze-thaw coupling, this study investigates the accumulation of micro-damage and failure processes of graphite tailings roadbed materials (GSFG) during freeze-thaw cycles...

This paper will model the spread of the Covid-19 by assuming two types of viruses using the SIR model extension. Furthermore, it will also be discussed about the analysis of the fixed-point stability of the model. The fixed-point stability analysis result shows that the fixed-points are disease-free,...

This study aims to regulate the effect of perceived ease of use, perceived usefulness, and risk on user interest in using financial technology peer-to-peer lending. Peer-to-Peer Lending is a loan acceptance financial business that uses an internet-based electronic system to connect lenders and borrowers...

By means of transfer matrix method, the reflectance of Thue-Morse (T-M) structure containing indefinite metamaterials is investigated It is shown that there is an omnidirectional reflectance band (ORB), and location of the ORB remains invariant with the change of generation order. The width of the ORB...

Injection molding machine motor pump system energy consumption models were established for dosing pumps, servo motor pumps driven and other different ways, to get the comparative analysis of different ways driving injection molding machine energy consumption. The injection molding machine pump system...

Planning and management of POPS by New York City government has experienced a process from being extensive and loose to meticulous and strict, which possesses 60 years of experience hitherto. This paper reviews the historical evolution of POPS in New York City, and analyzes the impact of Zoning system...

With China's economy goes into the new normal background, the problem of abandoning new energy power is becoming increasingly prominent. It comprehensively summarizes the development process of new energy from 2004 to 2014, and summarizes the current status of new energy development in China. Based on...

The effect of aerodynamic heating is obvious for hypersonic aircrafts. Its temperature change of cabin electronic devices is obvious under this severe working condition. Therefore, for this type of aircraft, it is important to design the thermal protecting system and evaluate the impact on electrical...

Function loss of large skeletal muscle is an urgent problem in the clinic. Although the artificial microfluidic network encapsulated in thick tissue-engineered constructs has a great promise, it is still difficult to develop an efficient microfluidic design to fit the requirements of the bionic vascular...

ID3 decision tree algorithm uses information gain selection splitting attribute tend to choose the more property values, and the number of attribute values can not be used to measure the attribute importance, in view of the above problems, a new method is proposed for attribute weighting, the idea of...

For a given three-layer assembled die of cold precision forging gear, the optimum design was implemented based on the elastic solution of the thick-wall cylinder under the admissible tensile stress. A non-uniform interference fit structure was employed, and the minimum tangential tensile stress in the...

ITO (indium-tin oxide) conductive glass plates were used as a support of Titanium dioxide films. TiO2/ITO films were prepared by sol-gel and dip-coating method with cheap inorganic salt TiCl4 as a precursor. The photocatalytic activity was evaluated by the photocatalytic decomposition of acetic acid...

In the current study of chemistry, the unique properties of chemically heterogeneous surfaces in the nanoscale have attracted common attention of researchers. But how to apply this technology in actual chemical industry becomes common problem faced by researchers. This paper focuses on the advantages...

This paper examines water scarcity from both social and environmental perspectives in arrange of 6 factors. 3 social factors and 3 environmental factors are used to analyse both physical and economic water scarcity. After collecting all above factors of 176 countries or regions, a rating mechanism is...

A model that generalizes credit-card-based electronic payment systems is analyzed by BAN logic and Kailar logic. This paper extends Kailar logic to process the analysis of ciphertext. This paper provides a new method to analyze ciphertext.

A large number of facts have proved that active tea extract is beneficial to human health and can prevent certain disease, and it of course also have a certain impact on the sports ability of athletes, which is mainly because the active tea extract has a unique effect on improving physiological functions,...

The competitiveness of vocational colleges can be examined through student satisfaction towards their service quality. While a laboratory is necessary to promote active learning in vocational college, in some cases its quality does not always obtain the student’s satisfaction at an acceptable level....

In order to improve the accuracy of personalized recommendation technology, the state space of multidimensional semi markov process definition "empty state " has been extended to multidimensional markov process, combining with the social network analysis theory and social network information flow model....

In this study, a kind of polycarboxylate superplasticizer used in high performance self-compacting concrete was synthesised. The examined properties included workability, T500, compressive strength,etc. Workability of the fresh concrete was determined by using both the slump-flow test. The results showed...

The performance of fingerprint recognition relies heavily on the quality of fingerprint images. In this paper, a multiple indexes fingerprint quality assessment is proposed for poor fingerprints. This method fuses seven indexes from three kinds of typical fingerprint features (gray features, local features...

The current calculation method of the acid dew-point temperature of the flue gas is multifarious, and many formulas even exist obvious errors. In this paper, the representative method is used to calculate the acid dew-point temperature of the flue gas, and the Influence factors of the acid dew-point...

Analyze the popularization obstacles of LCC technology in the green building put forward the LCC technology modular promotion mechanism based on the percolation theory. This paper builds the permeability model of LCC technology application propose the generation rules of LCC module. Combined with the...

Abstract: In order to improve authenticity and interactive of the tractor driving simulator system, mainly adopts double polarity 555 chip design for tractor driving simulator of turn signal circuit. Then specify bipolar 555 chip unsteady work mode setting method and principle ,and gives the tractor...