Advances in Engineering Research

We investigated an impact of technological conditions of oxidizing X12CrNiTi18-9 stainless steel implants in repeated heating-cooling cycles in the air on morphological features of resulting metal oxide coating. Our findings confirmed that generated coating had a high morphological heterogeneity of its...

For the purpose of research on behavior of argillaceous dolomite suffering from extreme weather impacts in Guizhou region, Study the behavior of the physical properties of rock samples after the water phase transition effect. By wet and dry cycle test, freeze-thaw cycle test, wet freeze-thaw cycle test...

Interface debonding is one of the most commonly observed failure in the Solid Rocket Motor(SRM). In order to investigate the debonding properties, the experiment was conducted by using double cantilever beam(DCB) specimen, and the strain energy release rate was obtained based on the load-displacement...

In this work, a strategy was developed for the synthesis of nano-sized, zirconia-core ceria -shell composites directly via chemical precipitation method in mixed solvents. The as-synthesized ZrO2@CeO2 composites were characterized by X-ray diffraction (XRD), zeta potential analysis, field emission scanning...

This paper proposes a method to optimize Pathological Voice Features based on classification and experimental design. Firstly, all voice parameters of features are classified, then pick the right amount of each class of representative and typical parameters based on the principle of mathematical statistics....

The objective of travelling salesman problem (TSP) is to find the optimal Hamiltonian cycle (OHC) and it has been proven to be NP-complete. A heuristic method is proposed for TSP. It is realized with four steps. A set of approximations are computed with the 2-opt move algorithm firstly. Secondly, a frequency...

Monoclinic Li1+xV3O8 is an attractive cathode candidate for lithium-ion batteries. Here Li1+xV3O8 precursor was synthesized via a electrospinning process using LiNO3, NH4VO3 and citric acid as raw materials, and followed by a thermal treatment at 450°C for 5 h in air atmosphere, to get well formed Li1+xV3O8...

A fast initial alignment method used Adaptive sample size unscented particle filter (AUPF) for SINS is proposed in this paper. As the SINS initial alignment with large misalignment angle is a typical nonlinear and non-Gaussian filtering problem, the unscented particle filter (UPF) is widely used in existing...

As an important part of the study of network security, Intrusion detection has aroused special attention of scholars from home and abroad. PSO-based SVM network intrusion detection is innovatively adopted in the paper where PSO is applied to support the parameters of SVM. Multi-classification is carried...

This paper studies the computer network security problems. There are nonlinear relations among the evaluation indexes, and it is difficult for an accurate mathematical model to describe the nonlinear relationship. In order to improve the evaluation accuracy of computer network security, we put forward...

This study first analyzed the phase composition of Dahebian coal mine by XRD, then do the experiment of screening, float and sink test, following the Hg content of coal was determined by atomic fluorescence spectrophotometer, and the regularities of distribution of Hg was studied. The results showed...

While Faster R-CNN is a classical object detection framework widely used in vehicle detection, its performance tends to degrade when deployed in complex and dynamic traffic scenarios. This paper first introduces the fundamental principles of Faster R-CNN, providing a concise theoretical background. It...

This paper aims to exploit the adaptive control robot arm with six degrees of freedom, an adaptive fuzzy control system was established. a fuzzy controller, the robot arm trajectory planning and the D-H algorithm were studied based on the fuzzy controller. Firstly, fuzzy controller and control rules...

In recent years, "migratory birds" tourism pension industry has developed rapidly in Heilongjiang Province. Forest landscape, ice and snow culture and European style create a new development trend for the "migratory birds" industry and derive from new tourism pension Hot spots. On the basis of "migratory...

According to the requirements of the forest soil respiration experiment, the multichannel measurement system in the forest soil respiration is researched and designed. The system selects the Programmable Logic Controller (PLC) as the core controller, changes the measurement channel by switching the measurement...

Due to causes such as unreliability of the transport protocol, energy exhaustion and noise disturbance etc in wireless sensor network, the uploaded data on the sensor node usually tend to be incomplete, which brings about a series of inconvenience for analysis and operation in the subsequent. Therefore,...

At present, the research is not enough for the formula of water content and strength index in domestic.The paper aims how the change of water content influence strength index of remolded loess by consolidation drained triaxial shear test for the Linxian loess.The results showed that: The shear strength...

The influence of cultural differences by race and treat people with an understanding of the work will be carried out from different angles, which leads to the same people for a work of literary criticism. Expand article on the impact of cultural differences between British and American English and American...

This paper presents a dynamic simulation test method of transformer protection based on Advanced Digital Power System Simulator, ADPSS. Firstly, a simulation model of three-phase three-winding transformer has been proposed in ETSDAC, a commercial electromagnetic transient simulation program. Then, according...

We have demonstrated a facile and economical method for the synthesis of the sewage sludge-derived carbon. This product was prepared by using poly-aluminium chloride (PAC) as pore-forming agent through high-temperature pyrolysis at 900 , and employed for the removal of phenol from water. Thermodynamic...

Regeneration technology for waste rubber has been an important research subject in rubber industry for many years, but currently the enterprise mature reclaimed technology, mostly existence of high pollution, high energy consumption problem, can not meet the requirements of energy saving and environmental...

Gas coal, 1/3 coking coal, anthracite and lean coal are used to blend coal, asphalt is used as binder, coal blending scheme is formulated according to the requirements for each index of coal blending. The best scheme of coal blending is: 35% of the lean coal is combined with 30% 1/3 coking coal, 20%...

With the development of tourism, the contradiction between tourists and environment is becoming more and more serious, which is mainly reflected in the rapid development of tourism industry and the lack of legislation on tourism environmental protection. China's current laws and regulations exist in...

This study aims to provide an explanation of the relationship between supply chain resilience and firm performance as well as the mediating role of digital innovation in West Java, Indonesia's food and beverage manufacturing. The relationship between supply chain resilience and firm performance...

Taji is a type of special knife made for certain purposes, which in Balinese means sharp. The material for these spurs in the Bali area is made from used temple stone cutter knives. The material for this temple stone cutter knife is made from HSS (high-speed steel). The process of making spurs starts...

Student attentiveness is widely known as essential in effective teaching, and is a task that is tough to sustain in traditional and online classrooms. In this study, a CNN-based solution is proposed to identify student attentiveness where the extent of the eye indicates their presence or absence. This...

Obesity is a significant and increasing global health challenge, impacting individuals and society on multiple fronts. Its prevalence continues to increase and attacks individuals from various age groups, including students at the Polytechnic. The transition from adolescence to adulthood, a period marked...

The rapid development of the large-scale equipment promotes the investigation on flow around rotating cylin-drical aerodynamic characteristics at supercritical Reynolds number. In this paper, the flow past a rotating cyl-inder at supercritical Reynolds number has been studied using the computational...

At present, the rapid development of computer technology, embedded system software has been widely used, with the increase in application volume, which faces a number of system development cost, quality and other aspects of pressure. In order to increase productivity, improve the ability to adapt to...

The purpose of edge detection is to distinguish different regions of the image, usually the edge information is determined by the gray-scale change between regions. In the image with noise, the traditional edge detection method is easy to determine the noise as the edge point. While adding filtering...

Urban complex is a highly effective entity integrating many functions. Based on the analysis of complex development status of Linyi, the growth pole theory is used to explain the mechanism which urban complex exerts on the spatial structure. The development of complex influences the urban spatial structure...

Based on the classical NS and FI model, an improved cellular automata model is proposed taking into account the different types of drivers. The drivers are divided into the energetic and conservative. Moreover, the evolution and update rules are given for different vehicles considering their respective...

In the power transmission engineering design review work, assessors need to repeatedly read the report in order to extract the engineering evaluation index content from a lot of text and tables, then give a comprehensive review comments. In the process, experts need to search the document content and...

Due to the existing image definition evaluation functions in auto-focus systems easily affected by noise, an image definition evaluation algorithm based on lifting scheme is proposed. The algorithm uses lifting scheme for wavelet decomposition, and adopts the energy value of high frequency components...

The simulation model of the large bus was verified by real vehicle test, and simulation test of GB/T6323-2014 was carried out, and the safety and compatibility of the test and square were analyzed. The results show that the controllability and stability test can be completed in the square, but part of...

In order to study the change condition of the influence on the centrifugal compressor blade field, we change the size of the centrifugal compressor inlet flow and the centrifugal compressor impeller rotational speed,using the realizable κ-ε ii equation model to do the steady numerical simulation for...

Ice load is very important for the design of marine structures at low temperature areas. In order to reduce the ice load to the marine structure, it is common to pile with up-bending and down-bending cones. Therefore, the determination of the ice load acting on the up-bending and down-bending cone is...

A smart control component is a type of embedded systems, such as SoC, system on a chip. It may control various objects and build to internet of things, IoT. Bicycle sharing systems are popular and green transports in China. They can be set up based on IoT and smart control components. In this paper,...

Settling is one of the important transporting processes of pollutants in marine bay. Based on the analysis on the distributions of Cd in bottom waters in Jiaozhou Bay 1988, this paper defined the settling process. Results showed that Cd contents in bottom waters in Jiaozhou Bay in April and July 1988...

Galloping is a process gradually formed.Initially,the line has a small-amplitude vibration around the equilibrium position. With the impact of wind energy negative air damping ,the amplitude in the horizontal direction gradually reduced and vertical amplitude slowly increased.Thereby the path becomes...

Exposed to air and water, the oxidation of sulfide minerals (e.g. pyrite) in coal mine waste can result in serious environmental problems such as acid mine drainage (AMD). Thiobacillus ferrooxidans is generally regarded as the principal iron-oxidizing bacteria involved in the process of sulfide oxidation....

In order to make rationally use of the original data and improve the data fitting precision of the sine waveform, the owe period fast North-Seeking method of the polynomial interpolation is based on the least square method. According to the character of the large deflection north point data, the polynomial...

In this paper, a quasi-Z-source inverter (QZsi) is used to model and regulate a hybrid photovoltaic (PV) wind microgrid. This inverter has significant advantages over conventional inverters, including superior buck/boost characteristics, high power performance features, a lack of filter requirement,...

This paper summarizes the necessity and the reinforcement methods of slope stability, and introduces the application of strength reduction method in slope stability calculation. Combined with the Qinhuai River slope improvement project in Nanjing, the strength reduction method is used to analyze the...

This paper delve deeper and discuss the temporal trend pattern of trends in rice yield in the district level in India between 1966 and 2000. Rice is the main national staple grain and one of the most important elements in food security, nutritional sufficiency, and food subsistence in rural areas. It...

The dynamic disturbance to the remaining surrounding rock mass of underground caverns produced by blasting excavation can not be ignored. Considering the rock mass damage induced by compression-shear stress in the zone near the blasthole, the KUS dynamic damage constitutive model was improved, and adding...

The karst water is one of the main geological disasters in tunnel construction in Karst area. The disaster of water inrush in karst tunnel is studied in this paper. FLOW-3D is used to simulation movement patterns of water inrush in karst tunnel based on BaoFeng tunnel engineering. The following contents...

With the development of Internet technology and the popularity of cloud computing technology, the organizations or companies try to build a private cloud platform. PaaS is a form of cloud computing service resources and provides application development environment. As the existing PaaS platform hosting...

Antibiotics, as the most widely used medicine, have been detected in surface water, urban wastewater treatment plants, and soil. The distribution and degradation of antibiotics have received wide attention due to the "pseudo-persistence" and worldwide transmissions of resistance genes. Of all water treatment...

This study aims to measure the effect of Financial Technology Information System (Fin-Tech) service quality to customers’ satisfaction level on the coffee shop business managed by young businessmen. With the growing enthusiasm of young people to start their businesses, Fin-Tech is favorable since the...

With the rapid development of domestic sports, the large-scale construction of gymnasiums has also risen. Due to the special characteristics of the large-span roof of the gymnasium, the steel structure construction faces many technical challenges, so thein-depth study of the construction process and...

Small and medium-sized enterprises (SMEs) play a very important role in the economic development and growth of a country. SMEs have great potential in business but face many challenges in innovation implementation. This research aims to examine the level of industrial competition, organizational innovation,...

As one of the emerging robotics directions, with the advancement of AI technology and the improvement of various algorithmic models, domestic service robots have begun to enter thousands of households. In this article, the author first uses specific data to show the huge potential of today's domestic...

With the rapid development of intelligent manufacturing, robotic shaft hole assembly is a key link in the manufacturing industry; its accuracy and efficiency are crucial to product quality and production efficiency. Vision-based robotic shaft hole gap assembly technology has become an important means...

In order to apply the lithium-ion batteries on the electric vehicles reliably and safely, estimating the internal statements of the batteries, such as the state-of-charge (SOC) is obligatory. The purpose of this work was to present a SOC estimation method named parallel arithmetical unscented Kalman...

The problem of weld formation in vertical welding is the difficulty of automatic welding technology of welding robot, which is easy to produce welding deformation, the welding seam is not fused, and the height is too high. In the welding process, to take effective measures to effectively solve the welding...

3D printing, a kind of emerging technology in additive manufacturing (AM), has been applied in many areas and aroused significant interests in academia and industry, for it promotes the development of democratizing design and manufacturing at lower overall costs. However, most 3D printers use open-loop...

This paper, by comparing the existing problems of distribution network technical transformation and the advantages of energy management contracting, puts forward the necessity of the implementation of energy management contracting mode of distribution network transformation of the power grid enterprises,...

Compared with the conventional adaptive spatial filter algorithm, blind beamingforming algorithm is endowed with the capacity to protect desired signal, suppress interferences and reduce noise without the information about arrival direction of desired signal, thus leading to the wide application in many...

Firstly, according to the topology of conventional chopper cascade speed system to analyze the transient process of main loop during of contactor operation when device failure. Because the contactor action requires a longer time, Equipment is vulnerable to the impact of high voltage, high current during...

During the product design of a mechanical equipment, story information element could convey Products Identity (PI) more accurate and vivid. After analyzing design requirements, researching and summarizing story information elements, useful design material would be found. The method of expressing story...

Using typical fish samples collected in the north Pacific on 2011 to 2012, adopting High Purity Germanium (High Purity Germanium) passive scale efficiency detect gamma spectrometer, radioactive nuclide 134Cs was detected in all samples. Using classification and sub-organs and other treatment methods...

This paper describes in detail the web data mining technology, analyzes the relationship between the data on the web site to the tourism electronic commerce (including the server log, tourism commodity database, user database, the shopping cart), access to relevant user preference information for tourism...

A novel magnetic nanocomposites (MNCs) adsorbent was synthesized for the removal of methylene blue (MB) dyes from wastewater. The inner core Mn0.6Zn0.4Fe2O4 magnetic nanoparticles (MNPs) were coated with an outer shell of silica based on a facile method using tetraethylorthosilicate (TEOS) as a precursor...

In this study, ten full-scale Douglas fir wood beams, broken down into two groups, were tested under monotonic loading and a three-dimensional finite element method based model was developed to study the influence of longitudinal cracks on the flexural behavior of such beams. The test results indicated...

Social Network Service (SNS) includes QQ, Facebook, Twitter, Blog, etc. Studies show that in the complex network, 20% of nodes with degree accounted for 80% of total degree. So the importance of each node is very different in the network. Many researchers dedicated to studying of complex network centrality,...

Big data transmit within the wan efficient and steady is the premise of the big data applications.The solution of traditional wan data transmission is mature, but there are many limitations in the era of big data. Transmission efficiency is poor and it is not apply to multi-source data transmission.The...

The research work was carried out in the period from 2014 to 2018 in the city of Tyumen. In this period 3,237 cats of different breeds and ages were examined. The investigated reproductive disorders were found in 389 cats. It was established that these disorders are widespread in Tyumen and their percentage...

Roller automatic production line adopts the unit management system, and has six management control units. And each of these units takes the 840D system as the control center and adopts PROFIBUS network for communication between unit and unit. The realization of synchronization function between internal...

The close linkage relationship between inland port and regional economic development causes the construction boom of domestic inland port, inland port's large capital investment and low operation efficiency can't match with regional economic development. The paper uses DEA data model to make a quantitative...

A new digital image encryption method is proposed by introducing a chaos mapping combining matrix operations on Galois fields. The original image is mapped into two matrices by using chaos mapping, and then the original image matrix is processed sequentially with the two matrices over a Galois field...

The basic principle of inter-isolated structure is expounded, the application of the inter-isolated structure is analyzes home and abroad, research ideas and progress in recent years of are summarized in detail, and the earthquake disasters research focus of the structure is put forward. The study shows...

Online Trading System with Reverse Image Search is designed for people to post their items up for trade. Compared to the bartering and trading system in different social media platforms, this system assures traders that all registered individuals have a valid identity, which may avoid bogus transactions....

Increased heat transfer rates in industrial heat exchangers are the subject of ongoing research. The heat transfer augmented by passive technique and active technique especially at intermediate Reynolds numbers in pipe flow. Passive procedures include inserting various sorts of inserts into tubes. Active...

Selecting reasonable gas pipeline materials is of great significance to improve the safety and reliability of gas transmission and distribution system and reduce the project cost in gas engineering. A method used for selection of gas pipeline materials is presented used VE theory. In this method, a mathematical...

For the rapid development of economy, China has seen more than 200 million kW capacity of hydropower plant installed and more than 55 billion m3 reservoir storage formed since 1950s. As a result, over 25 million resettlers have been wholly or partially affected. To displace and settle so many people...

With the development of science, technology and production, there is an increasing demand for high-current power supply, which is widely applied in research of high-speed railways, subways, electric cars, DC transmission and electromagnetic measurement science. The commercial high-current power supply...

In order to achieve a group of desired nutrient agent of indigenous microorganism of oil reservoir after polymer flooding in Daqing oilfield, biogas production experiments, physical simulation experiments and 16S rRNA gene library experiments were carried out. The first and second group of nutrient agents...

First, this article analyzes the Application layer Distributed Denial of Service(DDoS)'s attack principle and characteristic. According to the difference between normal users' browsing patterns and abnormal ones, user sessions are extracted from the web logs of normal users and similarities between different...

This article based on the analysis of system and system thinking as the foundation, through to the existing problems of coal mine safety monitoring system for a comprehensive analysis of the system, points out the existing problems of China's coal mine safety monitoring system, and expounds the various...

Normally, transformer overloading capacity is calculated using method in guide for loading mineral-oil-immersed transformers. However, the method is not so accurate for every transformer. Therefore, a modified BP neural network based on transformer overloading calculation model is proposed. With BP neural...

Coal mine in China is mainly underground mining, it need a large number of underground roadway engineering, to keep roadway and surrounding rock stability of coal mine construction and production safety is of great significance. Bolt or anchor support in coal mines has become a main supporting way in...

With the development of industrial and information technology, the power users increasingly demand better power quality. Therefore, the power department needs to monitor power quality in real time, and timely take appropriate measures to adjust the power quality. To overcome the shortcomings of wired...

The problem of the balance of the cantilever rectangular thin plate under the uniform load is solved by using the minimum potential energy of mixed variables. The solution process is clear, and the deflection surface equation is given. Through the numerical calculation, the calculation results of the...

This paper presents a design of the government procurement management (GPM) system to improve the problems that may occur during the purchase process, such as unscientific technical recommendations, unclear purchasing procedure, slow process and complicated analysis of statistical data. The system sets...

The rapid growth of Internet of Things (IoT) devices in outdoor environments raises critical concerns about secure key establishment. Conventional cryptographic methods often depend on pre-distributed keys or computationall intensive algorithms, which are unsuitable for resource-constrained IoT nodes....

Centralized exhaust system commonly used in high-rise residential buildings. Kitchens are the focal point in the design of ventilation. In order to solve the problems of oil fumes reflux and odor migration, simulation studies are carried out on the uniform ventilating duct and variable pressure ventilating...

Suboptimal pharmacokinetic properties, such as poor water solubility, limited stability, and severe side effects, still limited the therapeutic efficacy of drug for cancer chemotherapy, but there has been many strategies to improve these properties. In this paper, we combined several methods in a single...

With the development of science and technology and the improvement of living standards, people in ensuring the precursor of family safety on quality of life and intelligent family life increasingly high expectations. But the quality of life only in terms of temperature and humidity real-time monitoring,...

the article firstly introduces two main high-speed locomotive vehicle semi-active control strategy, and aims at SH-ADD a new hybrid semi-active control strategy are discussed in this paper From the point of the research results of the example analysis, the SH-ADD hybrid semi-active control strategy has...

Circulating water intake-drainage project is an important part in Power Station. The difference of circulating water quantity and intake-drainage method has various impacts on the circulating water intake-drainage project. Flow field variation of different water drainage projects (drainage by and open...

Based on the analysis of the circular crane working principle, nonlinear dynamic mathematical model is established for the anti-sway payload, and the dynamic simulation is carried out by using Adams. It is verified that the swing angle could be reduced by controlling the acceleration of trolley and cart...

Keywords distillation and document summarization are important task for many text applications. Existing methods have been conducting these two tasks separately without considering the relationship between the two tasks. In order to capture and make better use of their relationships between these tasks,...

Toxic micropollutants in rainwater challenge the effective reuse of rainwater. This study proposed the application of newly developed vacuum-ultraviolet (VUV) in the advanced treatment of rainwater, and assessed the efficiency and feasibility in application. The VUV was generated from the UV lamp made...

As the development and utilization of heavy metals in human society more and more, along with the increasing number of heavy metals are released into the water, more and more of the heavy metals are discharged into water bodies. After the heavy metals are into the water, the primary producers of algae...

Along with the power market reform in depth, the financial capital market as a breakthrough in the power industry reform and development, accelerate the process of electricity market. This paper introduces a method of power market risk hedge futures trend under the system.To ensure that the market depth...

Based on investigation data on Pb in surface waters in Jiaozhou Bay during 1979 to 1983, this paper analyzed the annual change of both contents and pollution levels of Pb. Results showed that Pb contents in surface waters in Jiaozhou Bay in 1979, 1980, 1981, 1982 and 1983 were 0.25-1.52 g L-1, 0.07-2.71...

Today, aviation simulators are complexes for training pilots flying an aircraft in normal situations and in pre-emergency situations. The pilot, piloting an aircraft simulator, manages an airplane model. The airplane model moves in a three-dimensional space model. The pilot monitors the movement of the...

The relationship between equity structure of commercial banks and its performance has always been a hot spot in the financial sector, this paper uses the 2007-2013 annual report data to analyses the relationship between ownership structure and performance of three kinds of listed commercial banks(state-owned...

In order to study the stress distribution law of simply-supported bridge deck pavement the finite element software ANSYS is used to building the overall structure model of the composite bridge deck. The huge difference of materials of interface of concrete cushion layer and asphalt pavement layer in...