Advances in Engineering Research

Multi-walled carbon nanotube (MWCNT)/Pb-Sn composite coatings and Pb-Sn alloy coatings were prepared by electrodeposition technique, respectively. The Internal stress of the coatings was studied through changed the Process parameters and the binding force of the coatings were compared through Thermal...

Economics affordability like safety, reliability, maintainability, is the inherent attributes of aircraft. Total life cost is the main economic index for aircraft. Active economic design for aircraft shows cost as independent variable. And economic design should consider total cost throughout the product...

Forecasting passenger flow accurately, especially for the whole network, is extremely important for the holistic optimization of transportation organization. This paper is concerned with the entire high-speed rail network, not just focusing on one single channel, and proposes a complete forecasting process...

Bacteriophage is abundant in various aquatic environment. Napahai is a seasonal plateau wetland located in Yunnan of China. But the reports on phage abundance of Napahai have not been seen. The object of this study was to make an accurate estimation for phage abundance of Napahai. We collected water...

This paper proposed a straw logistics radius optimization model on the base of analyzing the cost and profit of the biogas and manure co-generation, to obtain the maximized per-unit scale profit. Through mathematical differential method, the relationship between the optimal straw logistics radius and...

Al2O3-metal composite coatings were successfully prepared on carbon steel substrate by self-propagating high-temperature synthesis(SHS) melting-casting means.The effects of transition layers of a bi-layered structure on the interface combination status of the coating were studied in detail,including...

mathematic base of travelling wave is firstly analyzed in this paper and then one novel type of calculation method for travelling wave fault location for non-open circuit faults is proposed. The usage method in actual application is proposed to enhance the accuracy of traveling wave fault detection in...

In order to suppress the mixed noise composed of salt & pepper noise and Gauss noise in a digital image, a filter algorithm for suppressing mixed noise based on grey relevance is proposed. The algorithm classifies the noise point in the center of the filtering window, calculates the correlation coefficient...

Aiming at the issue of constrained optimization problem of assignment for shipborne missile weapon, hybrid genetic algorithm has been proposed in this paper, which can get global optimization results of the assignment, and provide decision support for the assignment.

Using finite element software SYSWELD, we did three-dimensional dynamic simulation studies of 304 stainless steel flat TIG welding temperature field. The results obtained transient temperature field distribution chart and thermal cycling curve of feature points. Compared with literature data, the established...

With the rapid development of the communication technology, the traditional routing algorithms which only consider functional QoS metrics are difficult to meet the needs of applications. In this paper, we propose a trusted routing algorithm to overcome this problem. First, we propose a trust evaluation...

Plant remediation is a new developed technology for remediation of heavy metal contaminated soil and become a hot spot in this field. Mining ecotype Sedum alfredii Hance can enrich heavy metal ion of contaminated soil and have advantages of large biomass, fast growth, wide adaptability and multiple harvest....

In order to meet the requirements for multi-connected inverter air-condition of diversified service, intelligent control and reliable operation, an embedded home gateway terminal system based on STM 32 signal chip microcomputer, WIFI network and RS485 communication technique has been designed and is...

This research is about student leadership development. The aims of this study is to reveal in-depth students’ understanding of leadership development and their views on the perceived impact. This study used a qualitative approach, with Focus Group Discussion (FGD) as data collection technique. Participants...

Modern times have created various devices to help human lives in homes, offices, and other buildings. However, most of these devices still rely on manual or conventional operation which creates some inconveniences, including limitations in monitoring, remote control, safety, and inefficient energy usage....

The height of the main beam of the radial gate is an important design parameter. This paper defines the dimensionless expression of beam height, and the beam height of the double cantilevered main beam of the radial gate is studied. Considering the cooperative work of panels, partitions, and other members...

Innovation became important today’s generation. There are new-found technologies to help users to cope with the fast and modern development of technologies. The study “I love Tacloban App” is an Android application that provides information when visiting Tacloban City. Everything the user wants to know,...

With increasing service life of offshore platform, the platform components have different degrees of damage and aging. In order to ensure the safety of offshore platform, the structure monitoring need to be implemented. The optical fiber sensing network is composed of FBG(Fiber Bragg Grating) accelerometers,...

Combination of Linjiang hongshui river super major bridge engineering practice, the bridge span structure during the construction of CF60 of concrete raw materials and mix proportion, cantilever casting construction technology points and structural health monitoring, quantitative engineering health indicators,...

In order to solve the problem that simulation accuracy and simulation flexibility is difficult to take into account in real-time simulation of high frequency converter, a real-time multi-rate simulation method based on FPGA+PC is proposed. This method fully demonstrated the simulation principle of multi-rate...

To evaluate the performances of a new selective plugging agent system, the lab experiments are carried out, it can be concluded that: The plugging agent system has the ability of selective plugging for water and gas; with the increase of the water saturation, the plugging rate of both water and gas are...

Aiming at the problems of real-time and reliability of the Network Control System(NCS) in coal mine automation, the performance of monitoring system based on Industrial Ethernet is studied. Through theoretical analysis and computer simulation, the real time performance including network delay, sampling...

In order to study the pyrolysis process of Ethylene Propylene Diene Monomer (EPDM) insulation material and its compression mechanical behaviour under high strain rates, the thermal stability of EPDM was analysed by TGA in the first place. Based on the TG curve and the thermal degradation temperature,...

Fault in Tahe Oilfield southeast slope has a positive meaning for more oil and gas reservoir, it can be divided into eight groups. Three of them have significant control action for the gas-water including north-south, NNE and NEE. They have closely related with fracture and karst reservoir seam holes,...

A nanocomposite film based on Dawson-type polyoxometalate cluster (P2W18) carbon nanotubes (CNTs) and chitosan (CS) were prepared on quartz and ITO substrates by layer-by-layer (LbL) method. These lms were characterized by UV–vis spectroscopy, cyclic voltammetry (CV) and Scanning electron micrographs...

Combined with the Heilongjiang economic and trade development is particularly urgent requirement to build regional free trade zone border, by analogy analysis, judgment and reasoning methods, analysis of Heilongjiang Province trade development problems and cause, tax policy and the characteristics of...

We provide a unification-based resolution method for basic modal logics. Because we use a clausal normal form that is quite similar to that in first-order logic, our method has good prospects for importing proof strategies for resolution methods from first-order logic. Furthermore, we show a solution...

As an integral part of their life, technology and innovation inspire digital natives to travel and recommend the destination that suits them. Creative tourism as one of the most in-demand tourist attractions by digital natives requires external inputs that generate a qualified experience environment....

The Industrial Internet of Thing (IIoT) mainly focuses on integrating and utilizing data completely within the production environment. To enhance IIoT the data from various devices and protocols are converted which help in providing a proper communication between the devices. There are still a lot of...

3 kinds of cement concretes are listed as follow: normal concrete, air-entrained concrete with 4% air content, concrete with 15% fly ash and 4% air content. Experiment methods of environmental coupling effect were designed. Model had been proposed in order to classify ink-bottle pore. Contents and shapes...

Recently, Extreme Learning Machines(ELMs) have get successful application in the fields of classification and regression. However, the generalization performance of ELM will be decreased if there exits non-optimal input weights and hidden biases. To solve this problem, this paper introduced a new model...

With the continuous development of China's science and technology, improve people's living standards in the field of electronic information have been developed, especially for the development of S3C2410 chip embedded LINUX system, but also get a lot of attention of enterprises, the following analysis...

User authentication is an important technology to guarantee that only the legal users can access resources from the remote server. The advantages of smart cards are storage and computation abilities. Recently, Li et al. pointed out the security problems of Chen et al’s password authentication scheme...

To improve the hydrophobic properties of the metal substrate and the using range, wire cut electrical discharge machining(WEDM) processes aluminum alloy 6061 plane twice in this paper. Under electrical discharge machining for the first time in the processing parameters of the pulse width 12 s, pulse...

Photosynthetic characteristics of seedlings of Carallia brachiata, Ficus microcarpa and Phoebe zhennan were studied at 6°C low temperature stress using Artificial Climate Box. After continuous treatments of 0 d, 2 d, 4 d, 6 d and a recovery of 2 d in nature, the photosynthetic indexes of the seedlings...

Open University learning environment need to adapt to the aim of Open University education and the objective demand of students. The construction of cloud platform is to build a new information interaction platform for open education. This paper analyzes the feasibility of cloud computing applied to...

The results of the experimental studies on the process of clinker grinding pre-crushed in a press roller mill and in a ball mill equipped with the energy exchangers are described in the article. The effect of clinker grinding pressure on the amount of deagglomeration forces of its compacted plates is...

Base on elastodynamics, complex function method with mapping function and Green’s function method are used to investigate the scattering of SH waves and dynamic stress concentration in bi-material half space with elliptic inclusion and interfacial crack. Firstly, the bi-material half space is divided...

Aiming at the shortage of the low efficiency of file backup, large amount of data, highly occupancy rate network resource, Put forward a file backup method based on double cache and mini-filter driver. Method uses Cache Manager creates two caches in kernel model, at the same time combined with real-time...

The electromagnetic component expressions of transient electromagnetic field in formation media for ground magnetic dipole are derived based on electromagnetic field theory. Fast Hankel transform and the Gaver-Stehfest inverse Laplace transform method is used for forward numerical calculation of transient...

The nonlinear magnetoelastic problems for a bar-shell in a magnetic field subjected to mechanical loadings are studied. Based on the electrodynamics equations, magnetoelastic kinetic equations, geometric equations, and physical equations of a bar-shell, normal Cauchy form nonlinear differential equations,...

As one of the basic technologies for building Internet of Things, wireless sensor networks (WSNs) are a hot research topic at present. In this paper, two basic structures of WSNs are described briefly, and the current security situation and security risks of WSNs are introduced. Then, this paper summarizes...

With the development of technology, strengthening cooperation in the field of energy among regions is proved to be one of the main trends in power industry. It is grounded on such background that this paper focuses on the subject of transnational networking project, which can effectively promote the...

In the turning process, the slender shaft workpiece is one of the difficult parts. Especially the action of load on the surface of rotary workpiece and interaction between the workpiece vibration and cutting force increase the vibration of the workpiece and even cause flutter. Based on the theory of...

Unsika Academic Information System is a service owned by Singaperbangsa Karawang University which has a function for the management and administration of student academic activities. However, this service is currently only available based on a website, then it has a confusing flow when you want to use...

Data preprocessing is the foundation to improve the quality of data mining and determines the effect of Web mining. Currently, data for mining is typically collected from the server, but data set from the client is more accurate. In order to better deal with these data, we propose a data preprocessing...

Near-field strong ground is the main factor that causes serious damage when large earthquake occurred. It is very important to put the predicted ground motion into disaster prevention and aseismatic design. We use empirical green function method to simulate the Kumamoto MJMA7.3 earthquake, in Kyushu,...

In order to solve the problem that the stepping motor in the manipulator is frequently stopped and the conventional index algorithm can not make full use of the output torque under the high speed heavy load,the two-stage exponential acceleration algorithm for stepper motor is proposed.Based on the critical...

Simulation technology is extremely important in the design process of control algorithm for missile weapon system. Different from digital simulation and traditional hardware-in-the-loop simulation, a rapid prototyping hardware-in-the-loop simulation technology is proposed which can confirm the control...

Based on the shadow observation method, author analyzes some problems when user makes coffee: items are too scattered to be effective for user. At the same time, according to the used frequency of each items, author analyzes the relationship among the items placed in the coffee cabinet, to make it more...

In the present study, new conductive and anti-corrosion coating which is suitable for grounding grid with a carbon-based conductive filler was investigated. This study determined using epoxy resin as a film forming binder, multi-walled carbon nanotubes as conductive filler, KH550 as the preferred coupling...

This paper proposed an interactive virtual pruning method for fruit tree. In this method, Unity3D – a common game development platform – was used as the implementation tool for the interactive virtual pruning simulation of fruit tree, including integrating 3D fruit tree and scissor into a virtual orchard...

This article not only describes the network information security encryption mechanisms, but also analyzes the advantage of symmetric cryptography and asymmetric cryptography. It points out the problems which are noted in the application and compares the information encryption technology commonly used....

Macro fertilizers play a fundamental role in grape production and are essential for key physiological processes such as photosynthesis, protein synthesis, and nucleic acid formation. However, conventional fertilization practices are often inefficient, environmentally unsafe, and result in low grape productivity,...

With the progress of science and technology, more and more people pay attention to the research of robot technology. Comparison of biped robot, chassis wheeled mobile robot in moving speed, stability, application scope, carrying capacity has obvious advantages on, and especially the application field...

In this paper, the R-function theory(RFT) is applied to solve the free vibration of slip clamped trapezoidal shallow spherical shell on Winkler foundation. Firstly the fundamental solution of the biharmonic operator, the boundary equation and the R-function are used to construct the quasi-Green's function....

The vertical trajectory characteristics of near-space hypersonic glide vehicle are researched in the paper. Firstly the model of 3-free degree is established; for skip-glide trajectory, the influences of initial velocity, height and fight path angle to trajectory are analyzed by the numerical simulation...

Welan gum is widely applied in environmental admixtures due to its good thickening and rheological properties. There is an obvious competitive absorption when welan gum coexists with polycarboxylate superplasticizer. Effect of different modified welan gum pellets on the properties of cement and concrete...

The excavation of city subway pit breaking the original balance of the soil, affecting the safety of existed buildings and the surface subsidence of construction are important and direct factors which react to construction impacts. Using the Gray Relational Analysis Theory, through monitoring measured...

A tapered polarization maintaining photonic crystal fiber based on dual-mode interference is proposed for measuring liquid refractive index. The sensing principle is based on the interference between LP01 and LP11 modes in the photonic crystal fiber. The output intensity distribution of the two modes...

The objective of this article is to apply a program for ecological indicator screening base on a new method, which is the Comprehensive Method for Water Ecological Index Screening (CMWEIS). CMWEIS is based on the Principal Component Analysis (PCA) and Delphi Method (DM, a kind of expert investigation...

Many results have showed that the great diversity of bacteriophages in various aquatic environments, including marine water, freshwater and paddy water, but few studies was about the genetic diversity of bacteriophages in the wetland. To better understand the genetic diversity of bacteriophages communities...

To improve the performance of one exhaust system, in the article, a exhaust system in the market was conducted by the stress analysis and optimization of the hanger. Firstly, the 3D model was built by Catia and a FEM model was built by Hypermesh , and then the calculation of the free modes were done...

First of all, the paper would be introduce the study on portable virtual instrument technology based on the Android platform, then particularly in virtual oscilloscope as an example, focusing on the overall design of the system. Stratified in different signal acquisition system in order to meet the demands...

During the global warming, the duration of drought is increasing and the impact on forest ecosystems could be further intensified. It is always a concern that diverse forests respond to different duration of drought differently. In this research, the non-parametric Wilcoxon test was used to compare the...

A highly stable 8T SRAM cell is presented to improve the Static Noise Margin (SNM). The proposed 8T SRAM cell uses a single-bit line structure to perform read and write operation. The design enhances the write ability by breaking-up the feedback loop of the inverter pair. It also improves the read stability...

There are many difficulties to establish a real satellite receiver in a laboratory environment.The satellite simulator can replace the satellite receiver to simulate the satellite signals.In this paper, it analyses the advantages of the satellite simulator in the time synchronization detection and consider...

the optical transmitter and optical receiver composed by light. Two important indicators of the optical transmitter average optical power, extinction ratio of two important indicators and optical receiver sensitivity, dynamic range are analyzed, and the importance of their carefully introduced test method....

The paper studies the impact of linseed cake in the diet of Russian Heavy Draft growers on their productive and physiological indicators. For the experiment, the Russian Heavy Draft growers were divided into three groups. The reference group of animals had basic diet, the 1st test group had the diet...

The Ultra Wide band (UWB) antennas play an important role in UWB system. As a crucial component of the UWB system, the UWB antennas affect performance of the system significantly and have advantages of low profile, low power consumption and integration easily, so they are widely used in communication...

This article introduced under the challenge of global climate change, advocating the importance of green building materials application. Green building is the one of the most effective way to energy conservation and emissions reduction. Analyzed the climate change on building engineering, construction...

Currently, the tradable allowance system, which is a market based environmental policy, is being introduced in China. Under this system, enterprises are given much flexibility in decision making. In this article, the authors constructed decision strategies and models for enterprises and analyzed the...

As global energy demand grows and concern over climate change increases, solar photovoltaic (PV) power generation, as a clean and renewable energy source, has garnered widespread attention and is rapidly developing. Due to the relatively low stiffness of PV modules, their light weight, and large spans,...

Aimed on the problems of control of the whole SMT production line, the technology of material management and control of the production preparation execution in SMT production line based on digital recognition is proposed. Firstly, the framework of this technology is constructed. Then the three key technologies,...

A robot is a positioning control can be automated and can be reprogrammed to change the multifunctional machine, occupies an important position in the industrial automation production. Hydraulic drive system can be pneumatic drive, it may be electrical control and other methods. With sensor technology,...

The black-dot defects on galvanized thick sheet surface after galvanizing line, which is the traditional construction materials with 1.5mm thickness, was studied. Characterizations of the research samples were carried out using a SEM in order to understand the causes of the defects. The results showed...

A low design of condition-triggering shift registers on Silicon for display was proposed, which has a new circuit structure of input driver clock. The design only allows certain clocks to enter the register, so that the dynamic power has been reduced. It has been demonstrated that the proposed structure...

This paper analyzed the demand and characteristics of power grid communication, stated the features and applications of service-oriented architecture, studied the scenario and method of service-oriented architecture in the power grid communication, proposed a method to organize the power grid communication...

To evaluate the regional water resources carrying capacity according to the importance of each related factor,we establish a model and sort out indicators that can characterize the ability of a region to provide clean water for its population. The water deficient ratio and utilization ratio of water...

This paper analyzed the contents, pollution levels and their seasonal variations of Pb in the early stage of the reform and opening-up in Jiaozhou Bay, China. Results showed that Pb contents in surface waters in spring, summer and autumn in 1979 were 0.37-0.99 " "g L-1, 0.25-1.52 " "g L-1 and 0.29-0.75...

A novel adsorbent was prepared by grafted the Dibenzo-18-Crown-6-Ether (DB18C6) on D564 resins and characterized by Thermogravimetry (TG) and Fourier Transform Infrared Spectroscopy (FTIR). Adsorption of Sr2+ from aqueous solutions was investigated in batch method as a function of contact time, concentration...

The addition of another electrochromic component has been considered to be an important way to obtain multicolor film. Herein, we fabricated the composite films containing polyoxometalate (POM) clusters, auxiliary materials and polyelectrolyte on quartz and FTO substrates by layer-by-layer assemble method...

In order to improve the surface compatibility of bamboo pulp fibers (BPF) with plastic materials, enlarge the application fields, BPF macromolecule which was modified by 2-bromoisobutyryl bromide (BIBB) was chosen as the initiator. Copper(II)bromide/ N,N,N ,N ,N - pentamethyldiethylenetriamine PMDETA...

The internal prestressed conduct grouting condition is the key problem in prestressed concrete girder bridge throughout the whole service life. Howeverm, there is no set of certain mature and reliable detection technology. This paper based on the impact echo theory, through the precision acquisition of the impact echo time of the prestressed pipe under the condition of different grouting condition levels. By establishing the relationship model between the grouting fullness degree and the reflection time of the impact echo, to provide the quantitative and accurate of measurement of the full degree of prestressed pumpness detection technique, and service for the maintenance and rehabilitation of bridge engineering....

In this paper, the kinematic model of the mobile robot is built. Based on Backstepping time-varying state feedback method and Lyapunov theory, the time-varying feedback control law were designed and the global asymptotic stability is proved. Numerical simulations were conducted to show the effectiveness...

Mango puree is a semi-finished product processed from mangoes. This mango puree is usually preserved using the freezing method or the method of adding preservatives. But actually this mango puree can also be preserved by the drying method. The advantage of the drying method over the freezing method is...

In this paper, the active neutral point clamped inverter (ANPC) based active power filter (APF) is presented. The APF with instantaneous reactive power theory simultaneously eliminate harmonic current of source and neutral line current caused by load, and feed the active power to the source from photo-voltaic...

Fracability, a key indicator for reservoir stimulation assessment, is directly related to shale gas production and resource extraction efficiency. In this study, a comprehensive fracability evaluation model for the shale reservoirs of the Wufeng-Longmaxi Formation in the Sichuan Basin was developed by...

Retrieval-Augmented Generation (RAG) systems rely on efficient and accurate retrievers to supply relevant context to large language models. While dense retrievers achieve superior semantic recall, they are computationally expensive, limiting their practicality in latency-sensitive or resource-constrained...

The choosing of dam location is a very important part of water conservancy project. Through the scientific dam location selection, the quality of water conservancy project can be improved [1]; In order to introduce the process of dam location selection. Take an example of the Kariba dam, picking 24 possible...

Combining with the trend of social development and the literature, this paper illustrates the importance of informationization construction in hospital, especially its role in the modern hospital management and the social and economic benefits. The hospital information construction is the inevitable...

The recycling and transportation of urban living waste is one of the common basic tasks to ensure the normal operation of the city. Aiming at the acceleration of urbanization and the increasing quantity of living waste, this paper proposes an "Internet +" urban garbage classification recycling and transportation...

A new laboratory method has been suggested for synthesizing coesite in the Earth’s crust by considering the similar characteristics of local collisions and shearing strength between the earth’s plates and the high-energy mechanical ball milling (MBM),combining the high static pressure and high temperature...

Polymer flooding, as a promising method, can deliver conventional oil-displacing agents effectively to contaminants distributed within heterogeneous soil. In this study, combinations of polymer (xanthan) and common remediation agents (potassium permanganate and/or sodium persulfate) were used for polymer-enhanced...

With the development of the Internet .this article introduces a method of time window,that can be used to collect as much legit data as possible via creating new time windows inserting data into the time windows and destroying time windows. The number of time windows maintained depends on practical applications....

The explosive development of the IT field, the number of structured and unstructured data is increasing in geometrical. According to this tendency, the importance of Big Data and analysis techniques has received attention. Also, using these data a number of cyber-crime has occurred. So, the security...

Al-20Si alloy in-situ synthesis composites were prepared by using in-situ synthesis technique. By means of the German ZEISS Axioskop2 optical micrograph, the microstructures of Al-20Si alloy in-situ synthesis composites were investigated. The evolvement rule of Mg2Si microstructure was analyzed. The...

In order to reduce the digital zenith camera identify stars data that exist in the gross error influence on astronomical calculating, improve positioning accuracy. The mapping relation between the CCD image coordinate system and the celestial tangent plane coordinate system is established by using the...

The usage of website is increasingly important for business in general including aviation industry because it provides additional benefits for the business. That is the reason why managing and maintaining a good website is very important in this digital age. One method to measure website quality was...

Gas is a molecule that is not bound, formless, invisible, and can change to liquid or solid at a certain temperature. LPG gas is a factor that often occurs the cause of LPG gas fires is the gas regulator that is not installed properly. The purpose of this study was to determine the performance of the...