Advances in Engineering Research

Epoxy resin/polyetherimide/graphene nanoplates (EP/PEI/GnPs) composites were prepared by solution blending, and the effects of GnPs on the phase structure and electrical properties of the systems were investigated by scanning electron microscopy (SEM), optical microscopy (OM), digital ultrahigh resistance...

In order to solve the problem of river water pollution and river bank collapse in rural areas, in this paper, the ecological management project of Heidingzi River in Changchun City is taken as an example to study the design of river structure and the optimization of ecological revetment. In the process...

Climate is an important factor that affects architectural design. In different regional conditions, it should have different structure and space distribution, that is, the regional technology of adaptation to climate. According to the climate characteristics of the middle and lower reaches of the Yangtze...

the stable control for industrialization automatic control system is the key for stable working of automatic control system. In the process of automatic control with the traditional algorithm, the influence of the outside interference factor to the automatic control system is not considered, thus, the...

This paper is mainly aimed at making an assessment of the flying collision risks between the military and civilian flights. The collision risk model of military training airspace and civil flight route was constructed based on the study and research of the collision risk of civil flight Event model....

The paper considers the service spacecraft (SSC) with electric propulsion system (EPS) to approach the objects of space debris (OSD) and its transportation into a disposal orbit. It suggests the SSC operation algorithm and different ways to ensure its implementation. The paper also provides the equations...

With the popularity of smart growth raising worldwide, the sustainable development of cities has attracted more and more attention. We define Sustainable Development Metric (SDM) as our metric to describe the smart growth in Lhasa. The three-hierarchy structure is built and there are 1 first level index...

Penman-Monteith equation is widely used to calculate the reference crop water requirements, which is composed of two parts: the first part is the radiation part and the second part is the aerodynamics item. Penman-Monteith equation requires more meteorological factors compared with the Hargreaves formula...

Cat's eye modulating retro-reflector makes fast ATP, very high speed, small, light and low power consumption free space optical communication link possible. This paper analyzes the principle of free space optical communication based on cat's eye modulating retro-reflector using a multiple quantum well...

This paper briefly analyzes the status quo of uninterruptible power supply of the survey vessel communication system, expounds the composition of communication power supply, principles and functions of uninterruptible power supply, and puts forward the optimal design scheme of the existing power supply...

This study focuses on Teachers’ Teaching Strategy to improve Students’ Speaking Achievement in Online Learning. The Covid-19 pandemic has changed the learning system in school. Therefore, teachers are required to be creative to improve students’ achievements in online learning. In the world of education,...

Aluminium metal matrix composites, often known as AMMCs for short, have seen a rise in their utilisation as a result of the expansion of the industrial sector. Their extraordinary mechanical and tribological qualities have piqued the curiosity of a variety of industries, including the aerospace industry,...

Traditional static arbiters cannot cope with scenarios with large fluctuations in resource demand, especially in multilateral bus systems and network switching. In recent years, evolutionary arbiter (EVOA) based on evolutionary algorithms provides a flexible and efficient resource scheduling mechanism...

Different circumstances and impact of a variety of factors in the actual operation of economic responsibility audit of off-post cadres in internal audit, a structural equation model was established to improve the efficiency of economic responsibility audit of off-post cadres and by observing the links...

Compared with ordinary concrete, recycled concrete has multiple weak interface structure, which is the main reason for the low performance of recycled concrete. Based on the construction of the recycled concrete multi interface model, the vivtorinox hardness of three kinds of interface structure of recycled...

Walnut peptides were obtained through special enzyme or hydrolytic enzyme enzymolysis with walnut residue as raw materials and degree of hydrolysis as index. The results showed that special enzyme was the optimum proteinase. The optimum hydrolytic conditions were as followed: the optimal enzymatic hydrolysis...

In order to probe into and solve the problems of rural residential heating by using solar energy in winter, the indoor and outdoor thermal environmental parameters of a passive solar heating house are tested and indoor thermal environment is analyzed and evaluated using the operating temperature in this...

For the problem about identification of VSAT network, a VSAT network identification technology using the priori information of VSAT network is proposed based on synchronization among different carriers' bursts. The validation via practical data shows that the method is applicable to the VSAT network...

Modern green building materials have the virtues of energy saving and environmental protection. They are the development direction of modern building materials. This paper introduces several modern green building materials, including concrete materials, green wood, insulation materials and green waterproof...

Aerospace structure requires lightweight panels to obtain weight saving and strength. It is well known that lightweight and stiff, sandwich panels are one of a vital element of aerospace structural design. In sandwich structures, the face sheets are the main load-bearing element. Since conventional polymer...

The thickness control system is an important method to realize the high precision hot rolling. By analyzing the Siemens thickness control model, this paper introduces the algorithm and principle of MN-AGC with smith predictor. The SIEMENS CFC program was used for fuzzy MN-AGC function development, to...

With the widespread use of antibiotics, environmental hazards caused by antibiotics and resistant bacteria residues have attracted wide public attention. In this paper, fluorescence quantitative PCR was used to detect and analyze the removal, distribution and influencing factors of four sulfonamide antibiotic...

The problem of scheduling independent jobs on identical parallel machines for minimizing makespan has been intensely studied in the literature. One of the most popular constructive algorithms for this problem is the LPT (Longest Processing Time First) rule whose approximation ratio has been proved by...

This paper presents scour protection measures at the Citarum riverbed due to obstruction of the Batujajar bridge piers used what-if analysis. Various studies have been carried out and developed for more than 30 decades, showing that the scour phenomenon causes many cases of bridge collapse in the world....

This study examines the response characteristics and damage mechanisms of masonry wall structures subjected to multi-cloud explosion conditions, emphasizing structural vulnerability and risk under explosive loads. Through numerical modeling and experimental analysis, pressure, displacement, stress, and...

As a key component of industrial robots, the performance stability of the rotary vector (RV) reducer is critical for operational efficiency and reliability. In variable operating environments, RV reducers often encounter challenges such as speed changes and load fluctuations, which can lead to internal...

Numerous comprehensive studies, both domestically and internationally, have extensively investigated the estimation of Probable Maximum Precipitation (PMP) over durations ranging from 1 to 3 days. However, there remains an unaddressed need for a systematic approach to estimate PMP over short-term. In...

Objective to study the preventive effect of hormone replacement combined with exercise on osteoporosis of postmenopausal women. Methods 70 postmenopausal osteoporosis patients in our hospital obstetrics and Gynecology treated according to different therapeutic methods were divided into treatment group...

Constructed wetland ecosystem is a complex project, and the removal mechanism is complicated. This article is mainly summary the degradation mechanism of pollutants from the main processing and removal method of wetland functions. Constructed wetland treatment effects on plant species, substrate, microorganisms,...

The monitoring of indoor formaldehyde and other harmful gases has attracted more and more attention. In this paper, the wireless sensor technology was introduced into the monitoring of formaldehyde gas. The realization of the hardware and software design of wireless sensor nodes, the design of the real-time...

Ballistic missile is becoming secret weapon of modern warfare because of its long distance attacks, low radar cross section, high speed and high accuracy with flexibility with nuclear warheads. In order to reduce its penetration, impact factor of ballistic missile characteristics of targets detected...

This paper is to propose a water diversion scheme to alleviate the shortage of water resources. We select six main reservoirs around Beijing, consider each reservoir characteristic parameter and use Improved Analytic Hierarchy Process to calculate the weight which can fix the problem of subjectivity...

Welding experiments of DP980 high strength steel plate with fiber laser have been processed. The influence of welding parameters on welding quality has been investigated. As well as microstructure and mechanical character of welding seam has been analyzed. It is showed that the joint appearance of DP980...

Intelligence activities are the basic activities of operational command, which have features of asynchronous and concurrent, that is difficult to use traditional mathematical tools to analyze. On the basis of analysis of digital division intelligence information process of activities, combined with the...

In recent years, with the development of economy and the deterioration of the environment, the protection of the ecological environment and the conservation of resources have become the focus of attention of the state and the world. The development of Forest Park has become a task in the new era. The...

An increasing number of air pollutants, like haze, arouse people’s great concern about indoor air quality. Ozone is one of key factors influencing indoor air quality. In this paper, combined recent research on indoor ozone pollution at home and abroad, the sources of indoor ozone and indoor pollution...

On the basis of the analysis about the Chinese-English engine of Microsoft Speech SDK, the paper achieves the development of speech commentary software about inquiry of ship engine damage cases with Visual Basic. And it also introduces carefully the development thoughts, programming ways and application...

In this paper, the research status of the tandem warhead at home and abroad is reviewed.The arming types and the corresponding principles for the fuse are introduced.The present situation and the research emphasis of the research on the influence of the front detonation field on the rear - level are...

A theory model of Kit-Manufacturing is established to improve the efficiency of aerospace product manufacturing. The definition and algorithmic method of Key Routing and Standard Production Batch is provided. The Kit-Manufacturing coefficient for monitoring product manufacturing process is defined and...

3D geological modeling is an important means to visualize and express geological information, analyze and study geological distribution intuitively. Borehole data is the main data carrier in geological research. This paper presents a method to create 3D geological model with the help of ArcGIS software....

This article presents the results of the research of spreading Psoroptes cuniculi on rabbits and Otodectes cynotis on domestic carnivores during 2014 - 2017 in the territory of the Tyumen region. The studies were conducted by the standard methods: clinical, acarologic, haematologic. The epizootological...

The paper presents a mathematical model describing formation of the spectra of particles in a convective cloud. A method for calculating absorption and scattering of monochrome microwave radiation in the cloud environment is described. The cloud model describes drop coagulation, accretion, drop freezing,...

The enrichment of environmental elements by Saccharomyces cerevisiae was used to obtain Fe-Zn-rich yeast, and the effects of pH, inoculation amount and culture time on Fe-Zn-Zn yeast were studied. The results showed that the influence of different factors on iron - zinc yeast culture was: culture time>...

In this paper, a method for automatic segmentation of plant point cloud is proposed. We get the quasi-dense point cloud of plant from Multi-view stereo reconstruction based on surface expansion. The Adaptive Normalized Cross-Correlation algorithm is used as matching cost to match points of interest in...

Based on the local annealing process with induction heating for the A286 alloy sleeve of the blind bolt, a mathematical model is built to analyze electromagnetic-thermal coupling. Influence factors, such as frequency and current, are investigated and analyzed using finite element method on temperature...

Sustainable biomass-derived carbon materials were produced by hydrothermal carbonization of corn stover that was followed by chemical activation with KOH. The prepared carbon materials were used for CO2 adsorption, and had a CO2 uptake of 7.14 mmol/g at a pressure of 1 bar and at 0 oC that was much higher...

The conventional landslide calculation is obtaining a specific stability safety factor by using limit equilibrium method or strength reduction method based on the given strength parameters of soil. Although the M-C(Monte-Carlo) method provides a path to predict instability probability of landslide, in...

Cancer is one of the leading causes of death globally, claiming ten million lives in 2020. Leukaemia, also known as blood cancer, is a condition in which the growth of white blood cells occurs uncontrollably. This study aims to simulate the mathematical model for the dynamics of leukaemia growth. The...

Thermoelectric refrigeration system is expected to provide the best choice when compared to conventional refrigeration systems. However, unfortunately the performance is still very low. In this research was developed a thermoelectric refrigeration system and control system based on Arduino Uno. For this...

This paper focuses on studying the overall risk assessment indicator system for tunnel reconstruction and expansion in highway reconstruction and expansion engineering with a view to mitigating the impact of uncertainties in highway tunnel reconstruction and expansion construction on engineering safety,...

Based on investigation data on Pb in bottom waters in Jiaozhou Bay in different months during 1979-1983, we analyzed the seasonal variations of Pb contents and pollution levels. Results showed that the pollution levels during 1979-1983 were light/moderate, and the pollution levels in the bay mouth were...

The erosion basis in reservoir confluence, with the characteristic of dual change, resulted in special longitudinal deposition patterns. Based on field data, longitudinal deposit patterns of mainstream and tributary in reservoir confluence was studied and two special tributary deposition patterns-adverse...

Cinnamon essential oil microcapsule was developed. Microcapsule was prepared with cinnamon oil embedded -Cyclodextrin ( -CD). The influence of the ratio of core (Cinnamon essential oil) to wall ( -CD), temperature, reaction time and stirring speed on the embedding rate of cinnamon essential oil were...

With the development of wireless communication and Internet technologies, it is possible to see every parking stall as an information source. The Internet of Things technology can then facilitate the realization of automatic charging of static traffic (on-road parking) and real-time monitoring of parking...

This paper mainly discusses the guidance differential control system via two aspects. On the one hand, it states what guidance differential control system is in detail and gives the comparison for the guidance differential control with single loop control according to their control methods and characteristics....

In this paper, the main work is focused on the study of the magnetic saturation controllable reactor operating characteristics. Finite element analysis has been used to build the model of 10kV magnetic saturation controllable reactor, then compared with the experimental values calculated control characteristics,...

Colored asphalt cement was prepared by mixing aromatic oil with petroleum resin and polymer additives. Then the colored asphalt cement was modified by oxidized polyethylene (OPE) wax, resulting in warm mix colored asphalt cement. The content effect and mechanism of OPE wax on the performance of the warm...

The mathematical model of earth pressure balance system of shield machine is proposed that is based on the mass balance principal in chamber of shield and Hook law of soil material. The state equation of the system is used to depict the relationship between earth pressure in chamber of shield and angular...

This study mainly focused on the dehydration of xylose to furfural with green catalysis. The reaction was under atmospheric pressure, with the as the catalyst plus an inorganic salt (NaCl) as promoter. DMSO was used as a renewable extraction solvent in a biphasic system. The optimal catalytic reaction...

Logistics industry is an important part of the national economy, but also is of the large industries for energy consumption. This study analyzes the relationship between economic output and logistics’ energy consumption in Shanghai during the period 1998 to 2012. The results show that the regression...

With the development of the network team purchase(NTP), the analysis on the theory of NTP will be more and more important Since NTP is a new consume model, there are few researches on it up to now. Network team purchase in the development process from scratch, there have been a variety of modes, which...

In this work, a multi-scale copper oxide film with excellent superhydrophobic property on X90 pipeline steel was fabricated by a combination method including electrodeposition, solution-immersion and chemical modification. Moreover, the influence of experimental parameters, such as solution-immersion...

For the sake of the shortage of phosphorus resources and the present situation of municipal sludge treatment and disposal, the necessity of recovery of phosphorus from municipal sludge is analyzed, whereas the methods of phosphorus releasing from solid phase to liquid phase in sewage sludge, such as...

Since natural gas is mainly transported or supplied in a liquefied state under high pressure, BOG (boil off gas) is frequently generated due to the adiabatic relation outside the pipe. To reduce BOG, various studies are being conducted. Recently, vacuum-insulated pipes are mainly used. Thus, in this...

With the purpose of achieving data integration in heterogeneous environment, this paper proposes a new data sharing scheme based on XML and B/S three-layer architecture. On the basis of this, a new general data integration system is designed and implemented. This paper discusses the framework, workflow...

In order to solve the problem of low accuracy of SOC estimation under complex operating environment, an improved SOC estimation algorithm based on temperature correction is proposed. First of all, considering the influence of temperature on the parameters of the battery model, the parameters of the model...

The development of technology in fingerprint identification and anti-theft system of smart lock,has become quite mature.The article started with research on remote control,visitor identification reminders,emergency open, and setting different doorbell in different situations. Developed a matching mobile...

This paper studies the influence of the cell is open to the surrounding road access, the establishment of a multi-index evaluation system first application of the basic comprehensive evaluation method of AHP, based on graph theory transportation network knowledge, in-depth analysis and select the network...

The performance every mmotorcycles is influenced by several factors as usual, including the usage of fuel typed. The study aim was to determine the effect fuels such as pertalite, pertamax, and pertamax-turbo type toward the power performance, torque and exhaust emissions produced by a 4-stroke motorbike....

In this paper, several models of planar array microstrip antennas are used for energy harvesting. This antenna is used to receive electromagnetic waves emitted by RF (Radio Frequency) sources and turn them into an electric wave. The design of planar array microstrip antennas will use a mathematical approach....

With the deepening development of underground space, the issue of rockbursts in tunnel engineering has become increasingly prominent, severely affecting construction safety. This study employs numerical simulations, and experimental testing methods to investigate the rockburst characteristics in drilled-blasted...

This paper provides an overview of Building-Integrated Photovoltaic (BIPV) environmental performance in different conditions. Four different technologies were selected based on their representativeness of the currently available systems and on the availability of the necessary data. Their characteristics,...

The current maintenance plan design work still relies mainly on manual experience and designs maintenance plans based on the degree of road damage. However, the maintenance plan still needs to maximize investment benefits, and the existing technology lacks a comprehensive maintenance plan that considers...

IPv6 integrates and covers a variety of advanced network technologies and has good extensibility. It has become the main Network Layer protocol in the next-generation Internet. In general it takes a long period for a new protocol to be invented and then to be applied in a wide range. Now there is a wide...

The Stewart platform is adopted for passage ship simulator. And 6-DOF ship motion model is used for the motion control of the Stewart platform. Responding model was use as ship motion model, and assuming that the degrees of freedom of ship is independent of each other. For the rolling of ship is harder...

The diagnosis of compound-fault is always a difficult point, and there is not an effective method in equipment diagnosis field, and then a new method of compound-fault diagnosis was presented in the paper. The vibration signals at start-up in the gearbox are non-stationary signals, in order to solve...

As metro and urban light railway transit projects are rapidly launched in China, land exploitation project along the railway are increasing too, and lots of new buildings’ deep foundation pit work are located around metro station and tunnel projection sphere the metro station will inevitably be influenced...

This paper firstly introduces the characteristics of several kinds of building materials. Based on them, several structural components includes concrete structure, steel structure, Steel concrete hybrid structure are produced. Structural characteristics and application in practical projects of these...

With the development of science and technology the technology of Power and Supply is becoming more and more intelligent and automation. Wireless terminal technology has been widely used in the electric power business hall on Mobile.Mobile APP client terminal is based on the wireless network communication...

The definition of BIM was reviewed from two perspectives of tool and process based on the literature from BIM software developers, BIM international research organizations and BIM monographs. The measurement models of the breadth and depth of BIM implementation level were designed based on the existing...

EPON ring network was applied in networking and cabling of mine to improve mine mechanical and electrical equipment of intelligent system network operation instability as well as high fault rate. When there is a single node failure, there is potentially a paralysis of the entire network system. EPON...

The influence of the front intake grille shape on the aerodynamics of a passenger car is studied,and a numerical simulation is made on a full-scale CAD automobile model with different grille shapes, including straight, convex, concave, and M and W-shaped. The results show that the drag coefficient Cd...

The price of nephrite gravel (alluvial deposits nephrite) is becoming higher and higher duo to the growing market demand, and more and more imitations are produced. In this paper, nephrite gravel, primary nephrite with natural secondary weathering crust and artificial weathering crust imitation were...

Traffic distribution is extremely uneven in Changqing campus of Wuhan Polytechnic University. To find out how exactly unbalanced it is and how to remedy this situation, investigation and questionnaire were carried out. Here only focus on the traffic investigation which was adopted eight observation points,...

This paper combines the attribute data and spatial distribution data of star hotels in different provinces and cities in China, and uses the methods of correlation analysis and location entropy to quantitatively analyze the spatial and temporal distribution of star hotels in China, and explore the dynamic...

By using the vertex - edge incidence matrix the vertex incidence matrix and edge incidence matrix was established also using the incidence matrix main diagonal spectrum to prove Euler graph problem in the paper .

The increasing of people population and vehicle number in big city has caused lack of parking space. This condition has forced the architects to design some parking spaces in form of parking building i.e., underground parking garage. However, an underground a parking garage is having higher risk to the...

Resource block allocation in cellular networks plays a vital role in defining the efficient use of the spectrum and maximizing user density. The resource blocks, also referred to as “payload,” is a wagon carrying the actual user data, and this study uses machine learning to forecast the needed payload...

Traditional games are a form of play that reflects the customs of a tribe which are passed to the next generation. Traditional games have a philosophical meaning implied in each game and are also very fun. From the point of view of benefits, traditional games played by children are able to stimulate...

In order to study high and low temperature performance of SBS modified asphalt binder with fasir, the sof-tening point test, DSR, ductility test and BBR were tested to detect the changes in its high and low tempera-ture properties according to laboratory tests. Test results showed that softening point...

The analytic characteristics of invariant manifolds for quasi-homogeneous autonomous system are obtained Yu [1]. On the basis of this,this paper give the unify thoughts of several classical special solutions can be achieved by using the proposal method in the conventional heavy rigid system. In addition,...

System reliability allocation is an important ingredient in system reliability design, and it is also a decision-making issue of reliability engineering. To achieve the optimization of system reliability allocation, an optimization model for system reliability allocation, which takes the system cost...

Knowledge sharing is a new phenomenon which appears with the development of Internet and virtual community, accompanied by members of the community the exchange and communication in the virtual community, knowledge sharing more and more attention. On the social identity theory and social network theory...

Portable through wall radar display and control system is bridge between the radar signal process system and users. On the one hand, radar display and control system receives the origin image signal and present it to users after processed it, on the other hand, the system receives the users' instructions...

In this paper, we construct the maximum entropy model, which improved the feature function and training set, to calculate the relevance degree of Chinese news and selected topics, and apply them to Chinese news event relevance recognition. According to the example of "Shandong vaccine event", the relevant...

The relevance of the article is due to the need for wider use of the alternative fuels in internal combustion engines. Advantages of using fuels of vegetable origin as motor fuels are shown. Experimental research of diesel engine D-245.12S functioning on mixtures of diesel fuel and mustard oil of various...

In this paper, for four groups of recycled concrete specimen in early shrinkage and restraint cracking experiment, which the recycled aggregate replacement ratio of 100% and the waste fiber volume content of 0, 0.08%, 0.12%, 0.16%. Experimental results show that: when the volume content of waste fiber...

The development and utilization of urban underground space is an effective way to use the limited space more reasonably and economically which has great practical significance for expanding the urban space capacity and improving the quality of the city. This paper explores planning idea, overall layout,...

In this paper, the scheme to monitor the fault features in switchgear is designed. From the features reflecting different types of faults such as insulation, mechanical, temperature rise, arc and so on, the original feature set for switchgear fault can be achieved which is including some diagnostic indicators....

This paper presents a dynamic orchard vehicle model in the SimMechanics simulation environment of Matlab. The model's function is to replace physical vehicles during different experiments in rollover and pitch research. Two simplified linear dynamic models are developed to analyze the force situation...