Advances in Engineering Research

Currently, one quarter of the world's population is experiencing water scarcity. In order to alleviate this situation, a prediction model which based on quadratic curve fit and the method of Grey Verhulst has been built. We used quadratic curve fit to forecast the comprehensive indicator and the per...

When operating facilities of production, transportation, and storage of oil and oil products, the pollution of various objects of the natural environment happens quite often. The technogenic impact of hydrocarbons (HC) on the ground mass is of interest in two aspects at least. The first aspect is the...

Supply chain management (SCM) has turned out to be latently precious approach to gaining access to competitive advantage and improving performance with increasingly escalating competition switching into among supply chains rather than between individual firms. This study is aimed at addressing influencing...

Hydrogenated amorphous silicon carbide thin films (a-SiC: H) were deposited by decomposition of SiH4 and CH4 gas mixtures at 200 0C. Chemical bonding configuration measurements by Fourier transform infrared absorption spectroscopy show that there are SiHn (n=1,2,3), C-SiH, non-hydrogen Si-C, Si-CH3,...

3D geological model, including structure model and attribute model, is the basis of building a 3D digital basin. This paper analyzed the models and their applicated model types involved in digital basins construction. In digital basins structure model is expressed by TIN surface, and attribute model...

Along with scientific and technological progress, the modern multi-use office buildings of various kinds have risen straight from the ground; under such circumstances, the installment of 10kV switching room has been needed by the users. Besides, to guarantee the demands of grid electricity, the 10kV...

Human life quality and activity are greatly influenced by nutrition since unhealthy diet can entail chronic diseases. Therefore, the authors of the paper make an attempt to dwell on some kinds of food products that are consumed by people on a daily basis, namely oils. The paper deals with the functional...

Mercury in coal-fired power plants is a trace element, will be discharged into the atmosphere along with the smoke, endangering human health and ecological environment. Mercury removal from power plants has become a hot research topic at present. In this paper, combined with the existing conditions of...

For this study, we are looking into how COVID 19 pandemic affected student learning outcomes. Several factors are believed to have an impact on the competences that students must attain. Learner models and preexisting skills have an impact on cognitive ability and learning outcomes. 40 students were...

Technological mineralogy of a refractory gold ores from Gansu Province China was investigated by XRD, SEM and polarizing microscope, the results indicate that gold in ores exists mostly in sulfide minerals such as pyrite, arsenopyrite and stibnite, partly existed in gangue minerals such quartz and calcite....

By enzyme-linked immunosorbent ELISA experiments, Determination of human skin fibroblasts (HSF) and macrophages (white blood cells by monocytes in THP 1) induced by PDGF after 6-carboxyl chitin stimulation, TGF-beta, and the expression of bFGF. The results showed that 6-carboxyl chitin can promote the...

Based on Tianjin 220kV power grid topology structure and protection setting configurations, the alarm steady information is mined deeply. Moreover, the big data of SCADA steady information is took full advantage to realize the accurate judges of all kinds of device tripping and the auxiliary information...

In order to solve the problem of spectral distortion and the fuzzy texture in visible and infrared image fusion technology, a novel visible and infrared image fusion method based on the Nonsubsampled Contourlet Transform (NSCT) and Pulse Coupled Neural Networks (PCNN) is proposed in this paper. First,...

According to the requirements of remote insulation monitoring for automated marine power station, the intelligent insulation monitoring system for ship grid was designed. On the basis of ProfiNet, a new S7-1200 PLC with ProfiNet interface of Siemens is chosen as the core controller by the system, making...

The activated carbon was prepared from soybean straw by activation of zinc chloride. Porosity characterstics were determined from the analysis of N2 adsorption isotherms using BET and BJH method. Microstructure of the sample was examined using a scanning electron microscopy.The results showed that the...

A pot experiment was carried out to study the effects of intercropping on zinc (Zn) uptake of maize and sweet potato seedlings. Intercropping with sweet potato increased the root biomass of maize seedlings, but reduced the stem, leaf and shoot biomasses of maize seedlings. Intercropping with maize increased...

The Tracked wheel vehicles which have the similarity with wheeled vehicle in nature are derived from wheeled vehicle, but tracked wheel vehicles greatly improves the vehicles’ obstacle crossing ability. This paper establishes the mathematics model of the tracked wheel vehicles, the simulation model is...

In order to truthfully reveal the stiffness decay regularity of asphalt mixture，the nonlinear fatigue damage evolution model of asphalt mixture based on accelerated loading test are established accordingly mixture，first，the accelerated loading test is conducted on the formed standard asphalt mixture...

High Efficiency Video Coding (HEVC) is the new generation of video coding standard. A quad-tree based Coding Unit (CTU) partitioning scheme is used to adapt to different video contents. However, it brings the dramatically increasing of coding complexity because there are a large amount of CU partition...

Frame-supported shear wall structures are designed with more limitations than shear wall structures and frame-tube structures because of the abrupt change of vertical stiffness. The transform members are proposed to be designed with enough stiffness to ensure those stories below the transform floor being...

The cables are usually laid underground, don't take up ground and space, are conducive to the city, factory neat and beautiful, play a role in that they can't be replaced by overhead lines on many occasions, and the cables are widely used. It is Unable to avoid breaking down for the long time running...

Although the correlation filter-based trackers achieve the competitive results both on accuracy and robustness, there is still a need to improve the overall tracking capability. Focusing on the issue that the correlation filter-based trackers algorithm has poor performance in handling scale-variant target...

According to the theory of multiple-beam interference, the difference of sodium wavelength can be measured by using fabry-perot interferometer. After experiment, unary linear regression and uncertainly calculation has been down based on the raw data. At last we do qualitative and quantitative error analysis...

In high-performance induction motor applications, multilevel inverters have demonstrated the capability to deliver cleaner voltage waveforms than conventional topologies. Nevertheless, their implementation can be hampered by issues such as circuit complexity, neutral-point voltage imbalance, and substantial...

Deng Qisheng, majoring in architectural history and theory, is a venerable professor of South China University of Technology. Professor Deng has been long engaged in the study of Chinese ancient architecture, whose academic directions cover many aspects of Chinese architecture history studies, such as...

REST based Web services and SOAP based Web services are two of the most mainstream forms of Web services. The performance of these two services is lack of detailed comparative analysis. In this paper, the power quality application is combined with these two kinds of Web services to realize the sharing...

To resist different kinds of attacks, Boolean functions used in the cryptosystem should have good cryptographic properties. The Plateaued functions, a large class of Boolean functions containing Bent functions and Partial-Bent functions, are good choices. Therefore, the study of construction and cryptographic...

Structural complexity is obvious in WW fault block of A oilfield, mainly due to high fault development degree. Based on the study of core observation, high resolution sequence stratigraphy and seismic profile, the lower second sub-member of Shahejie Formation of WWfault block was subdivided into 58 layers....

Among various biomass, algae have unique advantages such as fast growing, high efficient photosynthesis, no competition with crops etc. Supercritical Water Gasification (SCWG) is a potential technology for converting algae biomass into gases (including H2, CH4, CO, CO2), with merits with higher gas yield...

Combined with Lade-Duncan strength criterion under plane strain condition, the coal wall spalling mechanism has been analyzed, the width of plastic zone and stress distribution has been studied, has identified the several important influencing factors, and using numerical simulation method for more intensive...

The feature extraction and pattern recognition of partial discharge signal are key steps of equipment condition assessment and fault diagnosis. Time-frequency analysis on PD pulse can make up for deficiencies of traditional phase statistical method by extracting more comprehensive and effective information...

In consideration of the high tensile strength but low elongation properties of ultra-fine grain microalloyed steels prepared by deformation-induced phase transformation rolling technology, microstructural quantitative analysis was conducted. Results show that the volume ratio of acicular ferrites is...

In electric toy tests, the creepage distance and clearance tests are related to techniques of various fields and there are no specific measurement paths and rules in relative standards, which results in the big difference in test results. In this paper, the technical requirements of the creepage distance...

According to the investigation of 25 stations in Hanjiang River Basin in August 2015 and January 2016, the aquatic health index of the region was evaluated by using the evaluation method. The diversity evaluation grade was light or non-polluting in August 2015 while diversity rating for the heavy pollution...

A belt corridor of Pingdingshan tianan coal company was built in the 1980 s, after 30 years of use, lower chord and lower chord node of steel truss structure rust serious, bearing capacity of bar and node plate has not meet the design requirements, that being serious security hidden danger to producing...

In view of the faults of the traditional single Door-Controller,a single Door-Controller Based on intelligent Door-entry system through CAN bus is designed which combining the CAN bus with infrared coded remote control technology.The controller consists of STC89C55 single chip,CAN controller,data memorizer,the...

Trimaran is of three hull, three slender hull share a main deck and the upper structure, which has many superior qualities, compared with the single ship, aroused people's great interest. In the design of the main concern is to reduce the resistance of trimaran, therefore, to study the effect of convection...

To solve the problem of Back Propagation (BP) neural network easy to get in local least value and the initial weight is chosen randomly, Principal Component Analysis (PCA) and Genetic Algorithms (GA) were introduced to the BP Neural Network to achieve their complementary advantages. Based on the BP neural...

Based on finite element analysis software ANSYS, using shell elements and space beam elements, finite element model of the vertical multilayer pipe support system of high-rise building is created. The dynamic characteristics and seismic response of piping system are analyzed under earthquake load using...

CFD modeling method was applied on simulation analysis for ice can structure impacting on flow field of ice tank in this article. The cross section of existing ice cans was rectangular structure. Velocity between frontal side and lee side of ice cans was close to zero, fluid resistance was large. Contrast...

With awareness of environmental protection is increasing, the government regulations on noise limits have become increasingly stringent, people's requirement for the comfort of general machinery is increasing. The NVH performance of general machinery will be the main trend of the future general machinery...

After surveying and analyzing the educational condition of the High- School Physics, specifically about the stars’ movements, we treated the High-School Physics material as basis, researched enormous information from the internet and simulated three stars’ movements depending on numerical method, and...

Three-phase brushless DC motor is adopted as the drive motor for electric turbocharger in the paper. The selection of DC motor without position sensor is adopted three-phase star connected two-two excellent performance conduction mode as electric machine work to simplify the circuit structure design,...

PV as an important form of new energy, which has good prospects has been developed rapidly in recent years. However, distributed PV grid causes such as power quality, stability and reliability, also distribution Maintenance island effect will work to bring a lot of PV systems security risks. This mainly...

In order to ensure food security, a design scheme about temperature and humidity data logger for small refrigerator that could monitor temperature and humidity of the environment in real time was proposed. The recorder uses 32-bit RX631designed by Company RENESAS as the controller chip and the paper...

With the application of the pulsed-neutron formation-elements logging instrument, the interpretation method of formation-elements logging has been proposed. We obtained the standard spectrum library for formation elements, got the element yield, dry weight(percent content of the quality without crystalline...

In this letter, a dual-mode dual-band microstrip bandpass filter (BPF) based on stepped impedance resonator (SIR) for wireless communication applications is introduced. By choosing a proper impedance ratio, a BPF operating at 2.4/5.2 GHz is designed and analyzed. By adjusting the perturbation size, two...

On high performance computers, each compute node's demand for memory may be different. Building a distributed file system in idle memory can improve the memory utilization of the whole system. When memory takes place of disk, the Socket-based communication becomes the main bottleneck. As most of current...

The electricity of the micro grid mainly comes from the wind power, but generating power by wind is not steady, it brings some negative influences to the whole electricity system. So, it is necessary to improve the forecasting accuracy of the generating capacity by wind. It can make the whole electric...

Information technology has become an important part of port management. Proper management of the port system is essential for more effective and efficient sea transport processes. This situation explains why the movement and container checking systems at the ports are given big priorities. Explain that...

Nowadays, the aviation industry plays an important role in the development of the country, while the need for accurate prediction of aircraft engines is increasing. Among the numerous prediction methods and models, the Support Vector Machine Method and the Artificial Neural Network Method, which will...

In recent years, convolutional neural networks (CNNs) have achieved groundbreaking progress in the field of computer vision. However, the computational complexity and storage requirements of CNN models pose significant challenges for deployment on embedded systems and edge devices, with traditional CNN...

Although the vacuum preloading has been widely used in the engineering, the influence area of horizontal de-formation is controversial. In order to clarify the influence range and show the deformation of nearby building during loading and unloading of vacuum pressure, a series of finite element analyses...

Integration of Internet of Things (IoT) with Cloud Computing, termed as Cloud of Things (CoT). In typical CoT infrastructure, the data collected from wireless sensor networks and IoTs will be transmitted through smart gateway (SG) to cloud. The bandwidth between IoT access point and SG becomes a bottleneck...

The predict communication situation in 2015 is obtained based on the normal distribution of the market share percentage of each kind of information transmission mode. The prediction result is compared with the reality in 2015 then. The comparison result shows that our model have great reliability since...

A kind of nonwoven containing ferulic acid is prepared by electrospinning method. It was observed that the diameter of the fiber was about 200 nm by SEM. The antibacterial activities against Escherichia coli and S. aureus were also investigated. The result showed the nonwoven prepared was effective against...

The theory calculation of power supply for distribution network often based on grid structure in planning stage. The period of reliability evaluation indexes are mostly one year. The impact of different load levels and periods are rarely considered. Power supply reliability analysis and calculate online...

In this paper, aiming at the problem of fermentation northern winter weather is not conducive to the biogas system, we have designed a set of Solar energy and industrial waste heat boiler flue gas complex warming systems to ensure that biogas systems in the winter can also be normal fermentation. This...

Firstly we build a set of models to describe the temperature of the bathtub water in time. In this section, we analyze the variation process of water temperature under the condition of Natural cooling and injecting hot water respectively through a macro perspective. The Newton’s cooling law and the energy...

Well spacing is a critical factor to figure out when planning to drill new wells in low permeability reservoirs. In this paper, horizontal multistage fractured well spacing is optimized for several scenarios in H reservoir using PEBI grips. To find the optimum well spacing, sensitivity analyses are carried...

Iron–doped lanthanum stannate (Fe–La2Sn2O7, simplified as Fe–La) was prepared firstly and used as a synergistic agent of the intumescent flame retardant (IFR, the mixture of ammonium polyphosphate (APP) and pentaerythritol (PER) with mass ratio of 2:1) for polyphosphate (PP). The limiting oxygen...

Sunshine one of the most severe factors makes great effects on the mass concrete construction, especially on larger reinforced concert silo. In order to calculate the temperature distribution of the reinforced concrete silo subjected to the solar radiation, an easy-to-use tool is required for a transient...

With the development of national economy, China’s needs for electricity are growing and the requirements on quality is also becoming stricter on the power system security, stability and economic operation. Diagnosis of the state of equipment is mainly based on statistical analysis of large amounts of...

Fungal phytopathogens are responsible for significant losses in agriculture worldwide. Diagnosis of seed infestation by fungal strains causing plant diseases or producing toxins is important for sustainable agriculture. Since plants are always colonized by fungal strains there is a demand in approaches...

The best is to read these instructions and follow the outline of this text. Recently, convolutional deep neural network (ConvNet) has been widely used in the field of image classification. In this work, we propose a new feedback free convolution network for image classification. The proposed network...

In modern banking environments, secure and efficient customer authentication is critical to preventing financial fraud and enhancing user experience. Our research outlines a CNN-based model for rainfall prediction and a face recognition system to secure cheque clearance and customer authentication, leveraging...

Degradation of plastics forms micro plastics (MPs), which are one of the major water pollutants, offers substantial threat to ecology and health. Metal organic frameworks (MOF) have been considered as an emerging technology for waste water treatment (WWT), i.e., MPs because of adjustable and regular...

An algorithm based on the primary star, called the two-step matching algorithm, is proposed. The recognition characteristic of this algorithm consists of angular distances between the primary star and its neighboring stars, and the directions of neighbor stars. This algorithm uses star map information...

The urgency of demanding for large data in power industry will greatly exceed that of in other basic energy industries in the future. Through analyzing the power equipment condition monitoring data, we can assess more accurately the operating condition of power equipment, predict the life span of the...

The intrinsic kinetics and mechanism of direct dehydrogenation of isobutane were studied over K-Cu-Cr/Al2O3 catalyst. The experiments had been carried out in a fixed-bed reactor with eliminating the influence of both internal and external diffusion at 470-510 oC and space velocity of 2500-4000 h-1 under...

This paper mainly studies the effected of fuel injection time on combustion and emissions of the four kinds of different proportions of N-butanol alcohol and diesel fuel mixed without changing the injection duration and mass under the software of FIRE. It provides the theory basis for the further development...

Paper deals with investigation of induction electrical machines winding based on matrix description. The possibility to use such method for creation of new winding structures and properties prediction at the designing stage are discussed. The software implementing the approach suggested is also presented....

Highly efficient Li4SiO4-based sorbents for CO2 capture at high temperature, were developed using waste rice husk ash (RHA). Two different RHAS resulted from different calcination temperature as raw materials for preparing the Li4SiO4-based sorbents. These raw ashes and their resulting Li4SiO4-based...

Stretchable interconnects are essential structures in stretchable electronics. Typically, these structures are formed by metal conductors of different shapes on top of or encapsulated within a rubber material. Interfacial delamination during elongation is one of the major failures affecting the elasticity...

The researchers think more about the control factors except themselves, and ignore their own psychological factors in the aspect of water-saving. From the perspective of psychology, the paper discusses the Chinese college students about the group psychological factors, the popular psychological factors,...

The corrosion behavior of rebar HPB235 in 1.5 wt.% NaCl solution was studied, and the mechanical properties before and after corrosion were tested. The results showed that, with the increase of corrosion time from 240h to 720h, the corrosion rate of rebar HPB235 increases and the corrosion becomes heavier....

According to Extension project construction drawing design of Chang pugang Bridge and some related files, we built the mathematical model for calculation. Also, the internal force, stress, and deformation result of the control section has been checked by referring to the current specification, and we...

In the early stages of China’s mining industry, due to underdeveloped legal regulations, small mining companies often neglected backfilling and support work after excavation, leading to the formation of numerous goafs (mined-out areas). These goafs are prone to instability under the influence of external...

The result of the English Proficiency Test (TOEP) of UMS students in the first and second periods of 2021 shows an increase in student failures, from 33.96% to 50.82%. The increase of TOEP failures means the possibility of mistakes and deficiencies in the teaching and learning process, in point of fact...

This study aims to determine the level of relevance of graduates in getting a decent job. This type of research is descriptive quantitative. The variables studied included the level of closeness of the field of study with work, the same level of education with job needs, and alumni income. The number...

The soil water characteristic curve is a important parameter that expresses the unsaturated characteristic of water holding and moisture migration. With filter paper method, the matric suctions of soil samples in six water contents and three dry densities are measured, and the soil water characteristic...

Specific to the usual methods for insulation monitoring—dc superposition method, double frequency principle and zero sequence current amplitude comparison method, the work principle and applications of these methods were compared and analyzed, and respective characteristics were concluded. On this basis,...

Two new double-sided and multi-layered network porous compound named 1 [Ni2(BTC)2(DABCO)(DEA)2] have been synthesized by solvent thermal synthesis method. Which, for the first time, exhibit an unusual double-sided and multi-layered MOF. The double-sided MOF structure extended to regular hexagon morphology...

The kinetics of ring-opening polymerization of L-lactide in a tubular static mixing reactor was investigated for the first time. The polymerization of L-lactide was initiated by stannous octoate/triphenylphosphine catalyst system at a temperature of 170 ºC - 190 ºC and molar ratio of monomer to initiator...

The applications of neutral network based temperature prediction for microwave heating system has been comprehensively investigated. Temperature prediction is essential due to the characteristics of high power microwave heating system, a.k.a. big inertia and pure time-delay. This work proposes a BP neutral...

At the stage, the airport prestressed concrete pavement of our country is still in the research stage. In this paper, an experimental analysis on mechanical effects about the void prestressed concrete pavement has been done. Deflection has been compared under plain concrete pavement and prestressed concrete...

In this paper, a 220kV substation occurred in a 220kV oil immersed inverted current transformer failure were analyzed. Based on the principle and characteristics of the current transformer, this paper analyzes and judges the cause of the accident using the structure, characteristic analysis, accident...

In view of the serious water logging, water scarcity and water environment deterioration, the paper analyzed the causes of water logging according to the specific conditions of Kunming. The problems of water logging and water scarcity were considered from the perspective of rainwater utilization. Based...

Ensemble Multi-Criteria Decision Making (MCDM) has emerged as an innovative field, addressing challenges associated with the absence of a universally superior MCDM technique and the lack of objective methods for selecting the best approach. Researchers have proposed various techniques for combining MCDM...

This pilot study evaluated the APACHE Score and QT Interval Dispersion for the Prognosis of Critical Cardiovascular Diseases.

Principal Component Analysis (PCA) is a main approach based on the second order statistics. It can remove the correlation between the signal components. PCA has been widely used in blind source separation and received attention because of its potential application in signal processing. PCA’s principle...

Direct Simulation Monte Carlo (DSMC) is a widely used statistical numerical simulation method based on molecular motion. But in terms of the DSMC method. When we are simulating the gas flow at low speed, he molecular thermal motion speed is bigger than the macroscopic movement speed. If we want to get...

Doubly-fed induction generator is a multivariable, strong-coupling, nonlinear controlled object. The paper makes a comparative study on two decoupling control methods based on vector control and Internal Model Control theory for decoupling voltages of DFIG. Theoretical analysis and simulation results...

The damage test of concrete with size of 100 mm * 100 mm * 300 mm under loading history and sulfate attack has been carried out to investigate concrete properties. Mass and ultrasonic velocity of 15 prismatic concrete which are immersed in 1% sodium-sulfate solution under different loading history are...

Our first-principles calculations based on density functional theory predicted a new path for the formation of sp-ferromagnetic states: anion interstitials. The fluorine interstitials in MgO were found to be spin polarized and are more stable in the ferromagnetic state. This observation is attributed...

The research of the reliability will be further into the substation level with the combination of the substation main wring and power system. In this paper, the power system reliability considering the effect of the substation main wiring reliability evaluates by two different methods which are the analytical...

For quickly, realistically and effectively building up the computing environment in the emulational network and electromagnetic circumstance, how to utilize the underlying virtualization technology to realize dynamic building has become a hot spot and difficulty for researching. Prompt a dynamic building...

license plate location is one of the key steps for license plate recognition. With license plate recognition technology, police can better manage vehicle and this technique also give convenience to application such as parking fee charge. In this paper, we propose a novel method to locate license plate...

Ni-nanoTiN composite coatings were electrode posited on 45 steel substrate by using the ultrasonic–electrode position for nickel sulfamate bath. The effects of direct current, positive pulse current, reverse (positive and negative) pulse on surface morphology, binding force, micro hardness, friction...

The Overtemperature OTDeltaT design is based on radial core peaking factors being no worse than design. It is not intended to protect for adverse radial power (quadrant tilt such as might be caused by misaligned control rods). The OTDeltaT RT protects the thermal design limit for departure from nucleate...